Slope is the steepness of the surface element. Usually, the ratio of the vertical height h to the horizontal width l of a slope is called the slope (or the slope ratio), which is represented by the letter I, that is, the tangent value of the slope angle. The slopes marked on the I=h/l plane are all expressed as percentages. Slope = (elevation difference/horizontal distance) × 100%. For example, the height difference is 30mm, the horizontal distance 1000, and the slope = (30 ÷ 100) 100% = 3%. Height difference = horizontal distance × slope. For example, the horizontal distance is 2000mm, the slope is 2%, and the height difference = (2000× 2) ÷ 100 = 40 (mm). Cultivated land slopes are divided into five grades (including the upper part but not the lower part): ≤ 2, 2 ~ 6, 6 ~15,15 ~ 25 and > 25. Slope ≤ 2 is considered as flat land, and other slopes are divided into terraced fields and sloping fields. Extended data:
Slope gradient i= 1:2. If someone walks up the slope 100 meters, his height will rise. Solution: Because the slope-the ratio of the vertical height H of the slope to the horizontal width L is usually called the slope (or slope ratio), which is represented by the letter I. It is usually expressed as a percentage. Then, there are: the height rises to: x 2; +(2x)^2； = 100^2; 5x^2； =1002x √ 5 =100x =100/√ 5 Because√ 5 = √ 5/√ 5 * 5x = 20 √ 5 is simplified as:100 * √ 5/5 = 20 √. According to the classification of slopes used in geomorphological detailed drawings by the Geomorphological Survey and Geomorphological Cartography Committee of the International Geographical Union, 0 ~ 0.5 is defined as plain, and > 0.5 ~ 2 is defined as micro-slope. 2 ~ 5 is gentle slope, > 5 ~15 is slope, >15 ~ 35 is steep slope, > 35 ~ 55 is steep slope and > 55 ~ 90 is straight wall. Chinese mainland stipulates that people over the age of 25 cannot farm. The northwest loess plateau15 and 25 are the lower limit and upper limit critical slope angles of slope water surface erosion respectively. References:
Baidu encyclopedia-slope
How to calculate road slope
Calculation method Percentage method is the most commonly used method to express slope, that is, the height difference between two points and the percentage of their distance. Its calculation formula is as follows: slope = (height difference/distance) x 100%, that is, I = h/l x 100%. For example, a slope of 3% means that the distance is every 100 meters. 1% means that every 100 meter distance, it rises (falls) vertically 1 meter. And so on. The degree method uses degrees to express the slope, and the slope is calculated by the inverse trigonometric function. The formula is as follows: tanα (slope) = elevation difference/distance, so α (slope) = arc tan (elevation difference/distance). Extended data:
For example: slope i= 1:2. If someone walks up the slope of 100 meters, how many meters will his height rise? Solution: Because the slope-the ratio of the vertical height H of the slope to the horizontal width L is usually called the slope (or the slope ratio), which is represented by the letter I. It is usually expressed as a percentage. Then, there is: the height rises to: x? +(2X)？ = 100? 5X？ = 100? X√5= 100 X= 100/√5 Because√ √ 5 = √ 5 * √ 5x = 20 √ 5 is simplified as: 100 * √ 5 = 20 √ 5m, in fact, the slope is simply a right-angled adjacent angle (the angle of the ground). According to the classification of slopes used in geomorphological detailed drawings by the Geomorphological Survey and Geomorphological Cartography Committee of the International Geographical Union, 0 ~ 0.5 is defined as plain, and > 0.5 ~ 2 is defined as micro-slope. 2 ~ 5 is gentle slope, > 5 ~15 is slope, >15 ~ 35 is steep slope, > 35 ~ 55 is steep slope and > 55 ~ 90 is straight wall. Chinese mainland stipulates that people over the age of 25 cannot farm. The northwest loess plateau15 and 25 are the lower limit and upper limit critical slope angles of slope water surface erosion respectively. References:
Baidu encyclopedia-slope
How to calculate the percentage slope
Percentage slope is the percentage of the height difference between two points and their distance, and its calculation formula is as follows: slope = (height difference/distance) x 100%. When expressed as a percentage, i=h/l× 100%. For example, a slope of 3% means that every 100 meter, the distance rises (falls) 3 meters vertically; 1% means that every 100 meter distance, it rises (falls) vertically 1 meter. And so on. In fact, the slope is simply the tan value of a right-angled adjacent angle (the angle of the ground). According to the classification of slopes used in geomorphological detailed drawings by the Geomorphological Survey and Geomorphological Cartography Committee of the International Geographical Union, 0 ~ 0.5 is defined as plain, and > 0.5 ~ 2 is defined as micro-slope. 2 ~ 5 is gentle slope, > 5 ~15 is slope, >15 ~ 35 is steep slope, > 35 ~ 55 is steep slope and > 55 ~ 90 is straight wall. Extended data:
The transverse gradient is the gradient of subgrade (pavement) in the transverse direction, which is generally 2% to facilitate drainage, especially when the longitudinal gradient is small. In the curve, in order to counteract the centrifugal force, it is necessary to set the superelevation, that is, the inner bending is low and the outer bending is high. Longitudinal slope is the longitudinal slope of subgrade (pavement), which is what we usually call the slope of the route. The slope should not be too small (not conducive to drainage) or too steep (not conducive to driving and safety), and its slope length is also limited. When calculating, divide the height difference by the horizontal distance to get the slope value, which is expressed as a percentage. The slope of expressway shall not exceed 3% ~ 5%, the slope of first-class highway shall not exceed 4% ~ 6%, the slope of second-class highway shall not exceed 5% ~ 7%, the slope of third-class highway shall not exceed 6% ~ 8%, and the slope of fourth-class highway shall not exceed 6% ~ 9%.
How to calculate the building slope
Use the percentage method. The most commonly used method to express the slope, that is, the percentage of the height difference between two points and their horizontal distance, is calculated as follows: slope = (height difference/horizontal distance) x 100%, that is, I = h/l x 100%. For example, a slope of 3% means that the horizontal distance is every 100 meters. 1% means every 100m in the horizontal direction and every 1m in the vertical direction. And so on. Degree method: the slope is expressed in degrees and calculated by inverse trigonometric function. The formula is as follows: tanα (slope) = elevation difference/horizontal distance, so α (slope) = arc tan (elevation difference/horizontal distance). The degree method is expressed in degrees and calculated by inverse trigonometric function. The formula is as follows: tanα (gradient) = height difference/distance, so α (gradient) = 59% 9%; 10 18% 17%; 30 58% 50%; 45 100% 7 1%; 60 87%; 90 ∞ 100%
How to calculate the slope of a building?
1, the slope is calculated as the tangent of the triangle, that is, the vertical side of the right angle is higher than the horizontal side. For example, if a road with a horizontal distance of 100 meters rises by 5 meters, its slope will be 5%. 2. Slope. Usually, the ratio of the vertical height h to the horizontal width l of a slope is called the slope (or slope ratio), which is indicated by the letter I ... usually expressed as a percentage. That is I = h/l× 100%. In fact, the slope is the tan (tangent) value. Tanα (slope) = elevation difference/horizontal distance, that is, I = h/l× 100%. When the slope is 1:0.5, that is, 1/0.5= 1.5/l and L = 0.75m, then x = 0.75 * 2+1= 2.5m. The slope is/kloc-0.
How is the "slope" calculated in architectural design?
In architectural design, the formula for calculating the slope is = height H/ horizontal length, so it is assumed that the slope of the ground is calculated. If the height difference is 2mm, the horizontal distance is 100mm and the ground slope is 2/ 100 = 2%, you can leave a message if you have any questions.
Building slope calculation
Slope i= vertical distance h/ horizontal distance l* 100% When the slope is 1: 0.5, the slope is1/0.5 =1.5/l l = 0.75x =1+0.75.
When the slope is 1: 2,1/2 =1.5/l l = 3x =1+3 * 2 = 7m.
How to calculate the slope of building water supply and drainage pipeline
For example, suppose that the starting point of the pipeline is point A, the end point is point B, the horizontal distance is 5m, and the decreasing value of the end point B is X. If the slope is required to be 3/ 1000, then the equation X/5 = 3/1000x =15/1000 m x. According to Article 4.2. 10 of Code for Design of Outdoor Drainage (GB500 14-2006), the specified values of minimum pipe diameter and corresponding minimum design slope of drainage pipes are: d300 mm/ for sewage pipes/0.002 for plastic pipes and 0.003 for other pipes. The minimum diameter of rainwater pipes is d300 mm/ the minimum design slope of corresponding plastic pipes is 0.002, and the minimum design slope of other pipes is 0.003. If the terrain is flat, the general design can refer to Article 4.2. 10 of Code for Design of Outdoor Drainage (GB500 14-2006), which specifies the minimum pipe diameter and the corresponding minimum design slope of the pipeline under different conditions. With the development of urban construction, the number of buildings facing the street increases, and the displacement increases. Therefore, the minimum pipe diameter should be appropriately increased and the minimum design slope should be adjusted. There are four methods for slope calculation of extended data: percentage method, degree method, dense method and fractional method, among which percentage method and degree method are commonly used. The percentage method is the most commonly used method to express the slope, that is, the percentage of the height difference between two points and its horizontal distance. The calculation formula is as follows: slope = (height difference/horizontal distance) x 100%. When expressed as a percentage, I = h/l x 100%. For example, a slope of 3% means that the horizontal distance is every 100 meters. 1% means every 100m in the horizontal direction and every 1m in the vertical direction. And so on. References:
Baidu Encyclopedia-Code for Design of Outdoor Drainage
How to calculate the slope coefficient?
Slope coefficient-usually the ratio of the horizontal width b to the vertical height h of the slope. Usually expressed as a percentage.
That is i=B/H× 100%. Slope coefficient and slope are reciprocal, which means: the horizontal width of the slope corresponding to the height of subgrade or foundation pit1m.
Roof slope coefficient is the ratio of the height difference between the lowest point and the highest point of the roof (relative to the horizontal plane) to the horizontal distance between the lowest point and the highest point, mainly using the knowledge of trigonometric function in mathematics.
Mainly used for the calculation of housing safety. , which is an important factor of building safety, mainly uses the tangent formula in trigonometric function: tan.
A =∠A the length of the opposite side of a/the length of the adjacent side of a,
tanA=sinA/cosA=a/
b
Dark color
A tangent marked ∠ a.
Extended data
There are four methods to express slope: percentage method, degree method, density method and fraction method, among which percentage method and degree method are more commonly used.
1, percentage method
The most commonly used method to express slope, that is, the height difference between two points and the percentage of their distance, is calculated as follows: slope
=
(Height difference/distance) x 100%
When expressed as a percentage,
That is, i=h/l× 100%
For example, the slope is 3%
It means that every 100 meter, the distance rises (falls) by 3 meters in the vertical direction.
; 1% means that every 100 meter distance, it rises (falls) vertically 1 meter.
. And so on.
2. Degree method
The gradient is expressed in degrees and calculated by inverse trigonometric function, and its formula is as follows:
Tanα (slope) = 1
Height difference/distance
So α (slope) = arc
Dark color
(Height difference/distance)
Sogou encyclopedia-slope coefficient
How is the gradient calculated?
Slope is the steepness of the surface element. Usually, the ratio of the vertical height h to the horizontal width l of a slope is called the slope (or the slope ratio), which is represented by the letter I, that is, the tangent value of the slope angle. The slopes marked on the I=h/l plane are all expressed as percentages. Slope = (elevation difference/horizontal distance) × 100%. For example, the height difference is 30mm, the horizontal distance 1000, and the slope = (30 ÷ 100) 100% = 3%. Height difference = horizontal distance × slope. For example, the horizontal distance is 2000mm, the slope is 2%, and the height difference = (2000× 2) ÷ 100 = 40 (mm). Cultivated land slopes are divided into five grades (including the upper part but not the lower part): ≤ 2, 2 ~ 6, 6 ~15,15 ~ 25 and > 25. Slope ≤ 2 is considered as flat land, and other slopes are divided into terraced fields and sloping fields. Slope analysis: There are four methods to express slope: percentage method, degree method, density method and fraction method, among which percentage method and degree method are commonly used. Usually used to mark slopes, roofs and roads. The principle of slope marking method can be applied to topographic survey. Although using any of the above marking methods can bring out the same information, in order to avoid confusing readers who are not proficient in trigonometry, tangent percentage is most often used in public places. In Britain and Hong Kong, the tangent gradient is often marked by ratio instead of percentage, such as "1: 12" instead of "8.3%". In the railway transportation system, it is impossible for ordinary trains to climb steep slopes, and the slope will be expressed by one thousandth ratio (symbol ‰), which is smaller than the percentage. Since the denominator is 1000, it is more intuitive to show how many meters you have climbed per 1 km.
What is the slope of 1: 1? How to calculate?
1: 1 has a slope of 100%. The calculation formula is the ratio * 100%. Slope = (height difference h/ distance l)x 100%, which is the tan value of a right-angled adjacent angle (the angle of the ground). When expressed as a percentage, i=h/l× 100%. For example, a slope of 3% means that every 65,438+000 meters, the distance rises (falls) 3 meters in the vertical direction; 1% means that every 100 meter distance, it rises (falls) vertically 1 meter. And so on. According to the classification of slopes used in geomorphological detailed drawings by the Geomorphological Survey and Geomorphological Cartography Committee of the International Geographical Union, 0 ~ 0.5 is defined as plain, and > 0.5 ~ 2 is defined as micro-slope. 2 ~ 5 is gentle slope, > 5 ~15 is slope, >15 ~ 35 is steep slope, > 35 ~ 55 is steep slope and > 55 ~ 90 is straight wall. Chinese mainland stipulates that > 25 cannot be cultivated. Extended data:
Degree expression of slope: the slope is expressed in degrees and calculated by inverse trigonometric function. The formula is as follows: tanα (slope) = elevation difference/distance, so α (slope) = arc tan (elevation difference/distance). Slope is the steepness of surface unit, and the ratio of vertical height to distance of slope is usually called slope. The national provincial slope grading data products refer to the spatial distribution products of slopes in different provinces in China, and are one of the series data products of land and resources launched by the cloud platform for monitoring geographical conditions. References:
Baidu encyclopedia-slope
Slope coefficient calculation?
Slope coefficient has nothing to do with width, but only with height and length. When the height is compared with the length, 3/ 10=0.3, that is, every length of 1m will have a height of 0.3m. ..
How to calculate the slope coefficient? The more detailed, the better. Thank you.
The ratio of the horizontal length of the two starting points of the slope to the vertical distance of the two starting points of the slope. This is the slope.
Calculate the slope according to the definition.
Where is the difficulty of the landlord?
How to calculate the slope coefficient of sloping roof
The calculation of slope coefficient of sloping roof is as follows: assuming that the included angle between the roof and the horizontal plane is ∠A, the height of the highest point of the roof is ∠ a, the height of the lowest point of the roof is ∠ b, and the distance between the highest point and the lowest point in the horizontal direction is ∠ c, then the calculation formula of slope coefficient of the house is: tan ∠ a = (a-b)/C. Roof. Mainly use the knowledge of trigonometric function in mathematics, mainly used to calculate the safety of houses. Extended data:
Matters needing attention in calculation of slope coefficient of sloping roof: 1. The manufacturing method, material selection and moisture content of wood base (including purlins, roof panels, rafters and slats) are the same as those in Chapter A.5.? Two, cement tile, clay tile, small blue tile, asbestos tile, glazed tile, glass fiber reinforced plastic tile, galvanized iron corrugated tile specifications and specifications, tile number can be converted, other unchanged. ? Three, waterproof engineering is suitable for the ground, wall foundation, walls, structures, pools, water towers and indoor toilets, bathrooms, etc., waterproof and moistureproof engineering of buildings below 0.00 are calculated according to the waterproof engineering of the corresponding project. ? Four, the additional layer of coiled material roof and waterproof coiled material, joint, seal, cold primer or primer of leveling layer have been included in the quota, and will not be calculated separately. ? References:
Baidu encyclopedia-roof slope coefficient
Calculation formula of slope and angle
There is a formula to calculate the slope, but there is no angle, which needs to be calculated by trigonometric function in combination with practical problems: the most commonly used method to express the slope is the percentage of the height difference between two points and their horizontal distance, as follows: slope = (height difference/horizontal distance) x 100%. When expressed as a percentage: i = h/l× 100%. For example, a slope of 3% means that the horizontal distance rises (falls) by 3 meters per 100 meter; 1% means every 100m in the horizontal direction, and every 1m in the vertical direction, and so on. Extended data:
Practical application: Solution: Because the slope-the ratio of the vertical height H of the slope to the horizontal width L is usually called the slope (or the slope ratio), which is represented by the letter I. It is usually expressed as a percentage. Then, there is: the height rises to: x? +(2X)？ = 100? 5X？ = 100? X√5= 100 X= 100/√5 Because√ √ 5 = √ 5 * √ 5x = 20 √ 5 is simplified as: 100 * √ 5 = 20 √ 5m, in fact, the slope is simply a right-angled adjacent angle (the angle of the ground). According to the classification of slopes used in geomorphological detailed drawings by the Geomorphological Survey and Geomorphological Cartography Committee of the International Geographical Union, 0 ~ 0.5 is defined as plain, and > 0.5 ~ 2 is defined as micro-slope. 2 ~ 5 is gentle slope, > 5 ~15 is slope, >15 ~ 35 is steep slope, > 35 ~ 55 is steep slope and > 55 ~ 90 is straight wall. Chinese mainland stipulates that people over the age of 25 cannot farm. The northwest loess plateau15 and 25 are the lower limit and upper limit critical slope angles of slope water surface erosion respectively. Baidu encyclopedia-angle Baidu encyclopedia-slope
How to calculate the slope coefficient?
Slope coefficient-usually the ratio of the horizontal width b to the vertical height h of the slope. Usually expressed as a percentage. That is i=B/H× 100%. Slope coefficient and slope are reciprocal, which means: the horizontal width of the slope corresponding to the height of subgrade or foundation pit1m. Roof slope coefficient is the ratio of the height difference between the lowest point and the highest point of the roof (relative to the horizontal plane) to the horizontal distance between the lowest point and the highest point, mainly using the knowledge of trigonometric function in mathematics. It is mainly used to calculate the safety of buildings and is an important factor of building safety. The tangent formula in trigonometric function is mainly used: the opposite length of tan∠A =∠A/the adjacent length of tan ∠A, tana = Sina/COSA = a/b, and tana is marked as the tangent of tan ∠ a. There are four methods to express the slope of extended data: percentage method, degree method, dense method and fractional method, among which 1, the percentage method is the most commonly used method to express slope, that is, the height difference between two points and the percentage of their distance, and its calculation formula is as follows: slope = (height difference/distance) x 100%, that is, I = h/L x 100%. For example, a slope of 3% means every 65438% distance. 1% means that every 100 meter distance, it rises (falls) vertically 1 meter. And so on. 2. The degree method uses degrees to represent the slope, and the slope is calculated by using the inverse trigonometric function. The formula is as follows: tanα (slope) = elevation difference/distance, so α (slope) = arc tan (elevation difference/distance)-slope coefficient.
The slope is 5% and the horizontal length is 60m. How to calculate this slope? Please consult the great god.
Slope = vertical height/horizontal length =5%,
60×5%=3, 3 meters high,
√(60? +3? ) =60.075, and the slope is 60.075 meters.
How to calculate the slope
Slope, that is, the percentage of the height difference between two points and its horizontal distance, is calculated as follows: slope = (height difference/horizontal distance) x 100%. When expressed as a percentage, I = H/L x 100%. Subtitle answer: 1.49% = (150-x Extended data:
There are four methods to express slope: percentage method, degree method, density method and fraction method, among which percentage method and degree method are more commonly used. The gradient is expressed in degrees and calculated by the inverse trigonometric function. The formula is as follows: tanα (gradient) = elevation difference/distance, so α (gradient) = arc tan (elevation difference/distance). In fact, the gradient is simply the tan value of a right-angled adjacent angle (ground angle). According to the classification of slopes used in geomorphological detailed drawings by the Geomorphological Survey and Geomorphological Cartography Committee of the International Geographical Union, 0 ~ 0.5 is defined as plain, and > 0.5 ~ 2 is defined as micro-slope. 2 ~ 5 is gentle slope, > 5 ~15 is slope, >15 ~ 35 is steep slope, > 35 ~ 55 is steep slope and > 55 ~ 90 is straight wall. Chinese mainland stipulates that people over the age of 25 cannot farm. The northwest loess plateau15 and 25 are the lower limit and upper limit critical slope angles of slope water surface erosion respectively. References:
Baidu encyclopedia-slope
The slope is 60 degrees and the height is 2.75 meters. How to calculate?
The ramp length is 2.75/sin60 = 2.75 ÷ 0.866 = 3.176m, and the horizontal distance is 2.75 ÷ tan60 = 2.75/√ 3 ≈1.59m..
How to calculate the slope coefficient of 60 degrees?
According to the trigonometric function, the horizontal length of the opposite side/adjacent side =tan60 adjacent side = opposite side /tan60 slope: at this time, the foundation pit is a frustum or frustum. (1) when it is a frustum, the excavation quantity = (a+2c+KH) (b+2c+KH) h+1/3k * k * h * h (2) when it is a frustum, the excavation quantity =1/3π.
The slope of soil wall is expressed by the ratio of bottom height h to bottom width b, with slope = 1: m = h/b, m is the slope coefficient, and m= b/h is the ratio of bottom width b to bottom height h of soil slope. In architecture, the starting point of foundation pit slope is generally the bottom of foundation pit. Generally, the roof insulation layer starts from the side ditch of the roof. Baidu encyclopedia-slope coefficient
How to calculate the gradient ratio into degrees, such as1; 1.75
Slope, calculate arctan (slope) can be calculated into degrees. For example, the gradient ratio is1:1.75tana =11.75a = arctan (11.75) ≈ 29.745 degree extension data:
The ratio of the vertical height h of the slope to the horizontal width l is the tangent value of the slope angle (tan∠a value ∠a is the included angle between the slope and the horizontal plane). That is tan∠α. It is usually expressed by the tangent of "I" of angle A = vertical distance/horizontal distance, or it can be written as tan ∠ α = h/L. The ratio of vertical height (h) to horizontal width (l) of a slope is called slope (or slope ratio). Let the inclination angle be α and the slope be k, then k = h: l = tan α; The slope is generally written in the form of 1: m, where m= 1/k and m is called the slope coefficient. The greater the slope, the greater the slope angle and the steeper the slope, such as1:2 >; 1: 3, corresponding to 1: 2, the slope angle is large and the slope is steep. 1: m can be understood as: height = 1, width = m；; That is slope = tan α = h: l =1:m [1]. The angle between the inclined plane and the horizontal plane. When learning acute trigonometric functions, the term over-slope appears. The ratio of vertical height (H) to horizontal width (L) of a slope is called slope (or slope ratio). If the slope angle is α and the slope is I, the slope is generally written in the form of1∶ m. The greater the slope, the greater the slope angle and the steeper the slope. The relationship between slope and slope angle is I = tan a. When learning acute trigonometric function, the term over-slope appears. When repairing dikes, building dams, opening canals and digging rivers, we often need to indicate the degree of slope inclination. Signs of slopes can often be seen on signs beside uphill roads. In the figure, the ratio of the vertical height h to the horizontal width l of a slope is called the slope of the slope. If I is used to represent the slope, I = h/L. As can be seen from the meaning of slope, "slope" is a ratio, which does not represent an angle. We call the angle between the slope and the horizontal plane the slope angle. If expressed by α, we can know that the relationship between slope and slope angle is i=h/l=tanα Baidu Encyclopedia-slope ratio Baidu Encyclopedia-slope angle.
How to calculate the slope?
Use the percentage method. The most commonly used method to express the slope, that is, the percentage of the height difference between two points and their horizontal distance, is calculated as follows: slope = (height difference/horizontal distance) x 100%, that is, I = h/l x 100%. For example, a slope of 3% means that the horizontal distance is every 100 meters. 1% means every 100m in the horizontal direction and every 1m in the vertical direction. And so on. Degree method: the gradient is expressed in degrees and calculated by inverse trigonometric function. The formula is as follows: tanα (slope) = elevation difference/horizontal distance, so α (slope) = arc tan (elevation difference/horizontal distance) Extended data:
The measurement method of automobile climbing ability is slope. This slope is not the angle of the slope we usually understand, but the ratio of the height of the slope to the horizontal distance. Generally expressed as a percentage, it can also be expressed as a decimal. That is, slope = (height/horizontal distance of slope) * 100%. For example, the slope of a certain road is 30%. In fact, when the horizontal distance goes forward 100 meters, the vertical height rises by 30 meters, but the angle of this section is16 42 ",not 30. The slope is 100% and the slope angle is 45. The gradient of urban roads is generally less than 5%, and it is steep when it exceeds 10%. The design speed is 120, and its slope generally cannot exceed 5%. The slope of "Devil's Highway" in Yunnan is over 8%, so accidents occur frequently. Our underground parking lot looks steep. In fact, the designed slope is only about 15%, which is about 8.6 when converted into an angle.
What is the formula for calculating the slope length?
There are four methods to express slope: percentage method, degree method, density method and fraction method, among which percentage method and degree method are more commonly used. The (1) percentage method is the most commonly used method to express the slope, that is, the percentage of the height difference between two points and their horizontal distance, and its calculation formula is as follows: when the slope = (height difference/horizontal distance) x 100% is expressed as a percentage, that is, 1% means that every increase in the horizontal distance 100m. (2) Degree method uses degrees to express slope, and the slope is calculated by inverse trigonometric function. The formula is as follows: tanα (slope) = elevation difference/horizontal distance, so α (slope) = tan- 1 (elevation difference/horizontal distance). Tangent slope and sine slope of different angles are the steepness of surface unit, and the ratio of vertical height of slope to distance is usually called slope. The national provincial slope grading data products refer to the spatial distribution products of slopes in different provinces in China, and are one of the series data products of land and resources launched by the cloud platform for monitoring geographical conditions. Extended data:
Usually, the ratio of the vertical height h to the horizontal width l of the slope is called the slope, that is, the tan a value (a is the included angle between the slope and the horizontal plane) and the slope coefficient, that is, the ratio of the slope to the horizontal projection plane, which is expressed as a percentage. Slope coefficient = 1/tan a× 100%(a is the included angle between the slope and the horizontal plane) can be understood as the ratio of the height difference between two different points on the slope and its horizontal distance. Slope of AB = vertical distance/horizontal distance = height difference between point A and point B /DN (the distance of AB on the map is d, and the scale is 1: n). The denser the slope, the greater the slope. Because the vertical heights of two points represented between contour lines are equal. The greater the density, the smaller the horizontal distance between these two points. Set the slope position X. According to tan x= vertical height/horizontal distance, the vertical height is constant, and the smaller the horizontal distance, the greater the value of tan x and the degree of angle X. Therefore, the denser the contour lines, the greater the slope of the ground. References:
Baidu encyclopedia-slope
How to calculate the climbing angle of vehicles?
For vehicles, the climbing angle refers to the maximum slope that the vehicle can overcome when it is fully loaded on a good road surface, which represents the climbing ability of the vehicle. The gradeability is expressed by the angle value of the slope (expressed in degrees) or the percentage (tangent value) of the height difference between the starting point and the end point of the slope and its horizontal distance. A slope of 20% means that the straight-line length distance (L) of the ramp is 100m, and the slope height (H) is 20m. The vertical downward gravity of the car is decomposed into the pressure perpendicular to the inclined plane and the downward pulling force parallel to the inclined plane, and the inclination angle reaches 45 degrees. These two forces are equal. The car stops on the inclined plane by friction, which is equal to the pressure perpendicular to the inclined plane multiplied by the friction coefficient, and generally does not exceed 1. When the angle reaches 45 degrees, the friction of the car will be less than the downward pull, so you can't rest on the inclined plane. Extended data:
The car climbing degree indicates the car climbing ability. Only when the traction of the car is greater than the uphill resistance and rolling resistance (excluding air resistance) can the car go uphill. The measurement method to express the climbing ability of this car is percentage slope, which is expressed by the ratio of the height of the slope to the horizontal distance, that is, percentage slope =tanθ× 100%, where θ is the included angle between the slope and the horizontal plane. For example, the "car climbing degree" is 30%. According to the above formula, tanθ× 100%=30%, that is, tanθ=30/ 100=0.3, and the trigonometric function table shows θ ≈ 16 42 ",that is, the steepest slope that a car can climb is 6542". Baidu Encyclopedia-Maximum Climbing Degree of Automobile
How to calculate the percentage of slope
Vertical height/horizontal width of slope
How to calculate the slope of 2% in engineering
A slope of 2% means that every 100m of horizontal distance, the vertical direction rises (falls) by 2m; The most commonly used method to express the slope, that is, the percentage of elevation difference between two points = horizontal distance of arc tower Neil, is calculated as follows: slope = (elevation difference/horizontal distance) x 100%, that is, I = H/L x 100% degree method: the slope is expressed in degrees and calculated by inverse trigonometric function, and the formula is as follows:
The measurement method of automobile climbing ability is slope. This slope is not the angle of the slope we usually understand, but the ratio of the height of the slope to the horizontal distance. Generally expressed as a percentage, it can also be expressed as a decimal. That is, slope = (height/horizontal distance of slope) * 100%. For example, the slope of a certain road is 30%. In fact, when the horizontal distance goes forward 100 meters, the vertical height rises by 30 meters, but the angle of this section is16 42 ",not 30. The slope is 100% and the slope angle is 45. The gradient of urban roads is generally less than 5%, and it is steep when it exceeds 10%. The design speed is 120, and its slope generally cannot exceed 5%. The slope of "Devil's Highway" in Yunnan is over 8%, so accidents occur frequently. Our underground parking lot looks steep. In fact, the designed slope is only about 15%, which is about 8.6 when converted into an angle.
How is the percentage calculated?
How to calculate the percentage: quantity ÷ total × 100= percentage percentage is usually not written in the form of fractions, but in the form of symbols:%; Because the denominator of the percentage is 100, that is, 1% is the unit. Extended data percentage refers to the percentage that one number is another number, also known as percentage or percentage. Percentages are usually not written in the form of fractions, but are represented by the symbol "%"(percent sign). If it is written as 4 1%, 1%, 35% is a percentage. Because the denominator of the percentage is 100, that is, 1% is the unit. What percentage of one number is another = one number ÷ another number × 100% = percentage reference:
Baidu Encyclopedia-Percentage