Safety monograph refers to the design of coal mine safety facilities and conditions based on the preliminary design of coal mine, including the description and drawings of the safety monograph of preliminary design of coal mine. 3 Basic Provisions 3. 1 The special article on safety of mine preliminary design must be compiled on the basis of the following data: a) the geological report on mine exploration of the corresponding grade reviewed and filed by the land and resources department; B) The approval documents of the relevant competent departments of the provincial and above governments; C) The approval document or mining license issued by the land and resources department to delimit the scope of the mine field; D) safety pre-evaluation report. 3.2 The compilation of the monograph on mine preliminary design safety must meet the requirements of policies, regulations and standards such as Coal Industry Policy, Code for Mine Design in Coal Industry and Coal Mine Safety Regulations. 3.3 The safety article of mine preliminary design must be compiled on the basis of preliminary design, and the safety article of mine preliminary design should be compiled by the same design unit, which must have corresponding design qualification. 4 Compilation Contents 4. 1 Overview 4. 1 Mining Area Development. Including the overall planning of the mining area, the distribution and mining of existing production and under construction mines, and the distribution and mining of small kilns; If it is a non-new project, it is necessary to introduce its construction and safety production. 4. 1.2 Project design basis. Including the requirements and objectives put forward by the construction unit, the main technical data and approval documents provided, the main principles and guiding ideology of design compilation, relevant national safety laws, regulations, norms and standards, etc. 4. 1.3 Basic information of the construction unit. Composition of the project construction unit, main business, coal construction and production performance, and safety production in recent years. 4. 1.4 design overview 4. 1.5. 1 geographical overview. Geographical location, traffic conditions, topography, rivers, meteorology and earthquakes, environmental conditions, etc. Mining areas and mines. Attachment: Traffic location map. 4. 1.5.2 Major natural disasters. Floods, mudslides, landslides, collapses, bad engineering geology and disastrous weather in the area where the mine field is located. 4. 1.5.2 Nature of engineering construction, new construction, reconstruction and expansion. 4. 1.5.3 mine field exploitation. Minefield boundary, reserves, design capacity and service life; Mining field development mode, mining area layout, coal mining technology and main equipment, construction period, etc. Attachment: Wellbore Characteristic Table. Illustration: plan and section of development mode. 4. 1.5.4 lifting, drainage and compressed air system. Main equipment models and main technical parameters. 4. 1.5.5 Main transportation equipment for up and down wells. Ground railways, highways and other modes of transportation, underground main and auxiliary modes of transportation and equipment. 4. 1.5.6 power supply and communication. Power supply, voltage, power load, power transmission and transformation mode, ground power supply and distribution, underground power supply and distribution, safety monitoring and computer management, communication and railway signals, etc. 4. 1.5.7 ground auxiliary production system. Including raw coal loading, washing and processing, gangue discharge, water supply and drainage, sewage treatment, wellhead cooling and heating system. 4. 1.5.8 ground facilities. Important buildings and structures used for production and life in industrial sites and surrounding areas. Attachment: general layout of industrial site. 4. 1.5.9 technical economy. Summary of labor capacity, main technical and economic indicators. 4.2 mine development and mining 4.2. 1 coal seam burial and mining conditions 4.2. 1 geological structure and characteristics. Strata, coal measures strata and coal-bearing property. Strike, dip and dip angle of coal measures strata and their changing rules; Development and distribution of faults, folds, collapse columns and denudation areas; Igneous rock intrusion and its influence on coal seam and roof and floor of coal seam; Structure type. Attached Table: Characteristics of Main Faults Table 4.2. 1.2 Coal Seam and Coal Quality. The occurrence of coal seams (including the number, thickness, dip angle, structure, joint and bedding development of minable coal seams, etc.). ), the lithology characteristics, physical and mechanical properties, structure and its changing law of the roof and floor of coal seam; Coal seam outcrops (including hidden outcrops) and weathering zones; Coal quality and coal type. Attachment: table of characteristics of minable seam. Table of coal quality characteristics. Attachment: coal seam histogram. 4.2.2 Mine main disaster factors and safety conditions. Occurrence and regularity of coal seam gas, coal seam gas content and pressure, mine gas grade, outburst danger of coal (rock) and gas (carbon dioxide) in mine, and other toxic and harmful gases; Coal dust explosion index and explosion risk of each coal seam; Spontaneous combustion period and spontaneous combustion tendency of coal seam; Roof and floor conditions of coal seam; Danger of rockburst; Ground temperature situation. The actual situation and appraisal results of gas, coal dust, coal spontaneous combustion, coal and gas outburst and ground temperature in adjacent mines. 4.2.3 Mine development system 4.2.3. 1 setting and function of shaft. Engineering geological conditions of shafts and industrial sites, flood control design standards, protection coal pillar design, etc. Safety of air inlet and return wellhead. 4.2.3.2 mining area (or panel, the same below) division, mining area and coal seam mining sequence, mining area inheritance relationship, division basis and its rationality analysis; Determination of descending mining sequence of coal seam: analysis and demonstration of ascending mining of coal seam. Main roadway layout horizon, safe coal pillar, safety gap, support mode, safe wind speed and other safety measures in 4.2.3.3. Illustration: Cross-sectional view of main roadway in shaft, development and mining area. Attachment: plan and introduction of development mode. 4.2.3.4 should meet the standard conditions when it is completed and put into operation, and the alleys in the mining area including the panel should run through the whole mining area (panel). 4.2.4 Coal mining method and roadway layout in mining area 4.2.4. 1 Rationality analysis of coal mining method. The adaptability and safety of difficult coal seams such as comprehensive mechanized coal mining, caving mining, complex hydrogeological conditions, spontaneous combustion of coal seams, high gas mines, coal (rock) and gas outburst mines, rock burst mines, thin coal seams, large dip angle coal seams and extra-thick coal seams should be analyzed. Safety of mining equipment in 4.2.4.2 Middle School: support strength of hydraulic support, anti-toppling and anti-skid measures, measures to prevent flying gangue when mining inclined and steep coal seams, etc. Roadway layout in 4.2.4.3 mining area. Mining roadway layout, downhill, coal mining face gateway, etc. Selection and analysis of roadway horizon under the conditions of rock burst, spontaneous combustion of coal seam and coal and gas outburst. There are special return air lanes in high gas mines, such as mining areas where coal (rock) and gas (carbon dioxide) are dangerous, mining areas where spontaneous combustion is easy, and mining areas where coal seams in low gas mines are jointly arranged and mined in layers. Requirements for strengthening support in mining area and working face, etc. Attachment: Layout of roadway and plan and section of mechanical equipment in mining area (panel); Underground transportation system diagram. 4.2.5 Roof Management and Rock Burst 4.2.5. 1 Analysis of the basic factors of roof disaster prevention and equipment affecting the strata behavior: analysis of the influence of roof lithology, roof and floor types and physical and mechanical properties on possible roof accidents; The influence of faults and folds, compression zone and fracture zone, scour, joints, cracks, coal seam dip angle, mining depth, mining height and roof control distance on ground pressure behavior. Measures and equipment for the prevention and control of general roof fall disasters: the selection of roof management mode, the selection and demonstration of support in coal mining face and the selection and demonstration of roadway support in mining area; Safety measures for driving (retaining) roadway along goaf. Demonstration of support selection in heading face and support selection at intersection. Ground pressure observation equipment: all kinds of ground pressure observation equipment in fully mechanized mining face, high-grade general mining face, other coal mining face and heading face. Prevention measures of hard roof caving disaster: roof rock characteristics, physical and mechanical properties, roof rock thickness, roof caving near the mine, etc. Preventive measures and equipment: analysis of measures such as high pressure roof water injection and forced caving. Rock drilling rig, high-pressure water injection pump, ground pressure observation equipment (such as microseismic instrument, geophone, ultrasonic stratum stress instrument, etc.). ) .4.2.5.2 Historical data of rock burst in mining area or adjacent mine or mine; Analysis of factors (geological factors, mining factors) affecting the occurrence of rock burst in this mine; Rockburst prediction (rockburst prediction method, prediction instrument and equipment selection); Preventive measures of rockburst (design principles, preventive measures, etc.). ). Attachment: upper and lower coal seams comparison map, rockburst prediction and prevention engineering map (attached if necessary). 4.2.6 The specifications, requirements (equipment), service scope, layer selection and support forms of underground cavity, such as underground wiring type electric locomotive repair room and converter room, underground storage battery type electric locomotive repair room and charging converter room, underground explosion-proof diesel locomotive repair room and refueling (water) station, underground dressing room, underground fireproof material warehouse, waterproof gate room, underground first aid station, disaster avoidance room and underground cooling system room. 4.2.7 Location, warehouse type, support, ventilation, lighting and communication of underground and underground explosive materials warehouses; Distance from the main shaft (building); Safety measures in storage of explosive materials. 4.2.8 Mine, mining area and working face safety exit setting and guarantee measures. 4.2.9 Mine pressure and geological survey equipment configuration 4.3 Gas disaster prevention 4.3. 1 Gas disaster factor analysis 4.3. 1 Gas occurrence, gas composition, gas parameters (gas weathering zone, gas pressure, gas content and gradient in each coal seam, etc.). ), coal seam gas coefficient, coal 4.3. 1.2 gas emission prediction and its change law analysis; According to different levels of gas parameters, the gas emission quantity and mine gas grade in different levels or mining areas are predicted, and the variation law of gas emission quantity in different areas and different buried depths is analyzed and studied. 4.3. 1.3 Study on the selection of gas disaster control measures, determine the possible ways to reduce mine gas concentration, and make qualitative and quantitative analysis on the proportional relationship between exhaust and exhaust. 4.3.2 Explosion-proof measures 4.3.2. 1 Measures to prevent gas accumulation. Improve the stable, reasonable and reliable ventilation system; Ensure that the working face has sufficient air volume and reasonable wind speed; Determine the equipment and management standards for gas abnormal areas. 4.3.2.2 controls and eliminates the ignition source. Prevent blasting from igniting gas; Measures to prevent spontaneous combustion; Electrical explosion-proof measures; Measures to prevent spark collision; Measures to prevent ignition (explosion) fire (open flame). Explosion-proof measures for auxiliary production systems such as ground storage, loading and transportation in 4.3.2.3 4.3.3 Flameproof measures (see 4.5.5)4.3.4 Gas extraction 4.3.4. 1 Calculation of mine gas reserves, extractable amount and gas emission. 4.3.4.2 drainage system and method: selection and rationality analysis of gas drainage system: analysis of pre-drainage quantity, pre-drainage time and pre-drainage effect of ground centralized drainage (pre-drainage). Coal seam gas drainage method; Drainage method of adjacent layers; Extraction method of goaf; Selection and layout of drainage roadway; Drilling site layout and drilling parameters. Diameter, material, connection mode of main pipe, main pipe and branch pipe of 4.3.4.3 drainage pipeline and its equipment drainage system, and the number of trips of main pipe; Layout, laying mode and safe spacing of drainage pipes; Auxiliary facilities of pipelines (such as valves, metering devices, drainage pipes, slag removal devices, gas parameter measuring holes of pipelines, etc.). ) and its layout principles; Fire retardant, anti-smashing, anti-static, anti-corrosion, anti-leakage and anti-skid measures for underground pipelines, and anti-freezing, lightning protection and anti-static measures for ground pipelines; Drainage flow, negative pressure and time limit of mine in different periods; Gas storage, utilization mode and required positive pressure, selection of drainage equipment and working point (conversion between actual working condition and standard working condition of drainage equipment should be considered), verification of equipment richness (≮ 15%), equipment operation and number of spare units; Auxiliary facilities (lifting, cooling, heating, ventilation, measurement and metering) and safety facilities (explosion-proof device, backfire prevention device, ventilation pipe, lightning protection and fire extinguishing device), installation and layout, fire prevention spacing and safety exit of the machine room; Analysis on the rationality of drainage equipment and facilities selection and the safety and reliability of operation; Attachment: drainage pipeline system diagram and drainage pump characteristic curve diagram. Safety measures for drainage system and pumping station in 4.3.4.4: gas prevention measures for drainage station and drilling construction; Lightning protection, fire prevention, flood control and anti-freezing measures for pipelines and gas transmission stations; Provisions on gas drainage concentration; Safety management measures. Composition, function and setting of monitoring subsystem. 4.3.5 outburst prevention measures 4.3.5. 1 coal and gas outburst risk analysis, coal seam occurrence, roof and floor, etc. Gas characteristics; Physical and mechanical properties of coal seam; Coal and gas outburst in mine or adjacent mine; Identification results of gas outburst risk in each coal seam. Comprehensive outburst prevention measures in 4.3.5.2 (development mode and mining sequence; Coal mining method and roadway layout; Mine roadway and roof management; Ventilation, etc. ) .4.3.5.3 Coal seam water injection outburst prevention (coal seam hole layout form, location, length, water injection quantity and other parameters are comprehensively considered in combination with dust prevention and outburst prevention, see 4.5.2 for details). Mining protective layer in 4.3.5.4: determination of protective layer; Delineate the effective range of protective layer; Several technical problems in mining protective layer —— layout of main roadway, selection of location of exposed outburst coal seam in roadway, determination of effective protection range and related parameters of protective layer, determination of advancing distance between protective layer mining face and protective layer tunneling face, measures to prevent stress concentration, selection of tunneling ventilation and local fan wind, ventilation system and facilities before uncovering coal in roadway, layout mode of mining area and other issues that should be paid attention to. 4.3.5.5 pre-pumped coalbed methane; Outburst prevention measures for uncovering coal in crosscut and roadway: outburst prevention measures in coal roadway excavation: outburst prevention measures in coal mining face. 4.3.5.6 prediction method, coal and gas outburst prediction instrument. Safety protection measures in 4.3.5.7: safety protection measures for exposing outburst coal seam and mining operation of outburst coal seam in roadway; Compressed air self-help system (compressed air self-help cavern; Compressed air self-help point; Self-rescue system needs air volume verification and pipeline facilities); Personal protective measures, etc. Attachment: compressed air self-rescue system diagram. 4.3.6 Mine gas and other gas detection instruments and equipment configuration 4.4 Mine ventilation 4.4. 1 Ventilation system Mine ventilation mode and method. The number, location, function, service scope and time of inlet and return air shafts in the early and late stages of the mine; Reconstruction and expansion of mine shaft increase and abandonment. Illustrated: ventilation system diagram (prophase and anaphase) and ventilation network diagram (prophase and anaphase). 4.4.2 The influence of natural wind pressure and altitude should be considered in the calculation of mine air volume, wind pressure and required air volume in different periods, the calculation of air volume distribution, wind pressure and equal porosity, and the evaluation of ventilation difficulty. Attached Table: Calculation Table of Wind Pressure in Early and Late Period. 4.4.3 Excavation ventilation method, ventilation equipment and safety measures to prevent circulating wind. 4.4.4 Ventilation system and safety measures for underground independent ventilation chambers, and chambers with diffusion ventilation and ventilation requirements. 4.4.5 Underground ventilation facilities and structures, setting and technical requirements of various dampers, wind-proof walls, wind curtains, wind bridges, dampers and anemometers. 4.4.6 Selection of main mine ventilators and mine ventilation equipment, main points of normal and reverse wind operation (the influence of natural wind pressure and the correction of altitude on characteristic curve should be considered), and verification of ventilation equipment margin and motor power (including reverse wind power); Working condition adjustment mode, auxiliary facilities (explosion door, air duct, air door, lifting, lubrication, hydraulic pressure, cooling and heat dissipation, noise elimination, pressure measurement, fire extinguishing equipment), installation arrangement mode, engine room safety exit, air door anti-freezing measures and performance test mode; Wind-resistant methods, wind-resistant systems and facilities; Performance matching and operating point stability of multi-fan combined operation; Analysis on the rationality of ventilation equipment selection and the safety and reliability of operation. Technical measures and methods for windproof of air shaft. Attachment: fan operation and headwind characteristic curve in the early and late stages. 4.4.7 Shaft antifreezing mode, calculation parameters, equipment selection and corresponding safety measures. 4.4.8 Cooling measures and equipment selection 4.4.8. 1 Analysis of types, degrees and factors of mine heat damage. The distribution of geothermal and hot water and the thermophysical properties of rocks in 4.4.8.2 mining area can be exploited. Main parameters such as formation, migration, water temperature and water quantity of hot water in hot water mine; Main parameters such as original rock temperature, dry and wet bulb temperature in geothermal mine. Calculation of Heat Source Heat Dissipation in 4.4.8.3 Mine Influence of Ground Temperature and Heat Damage on Workers: Prediction and Calculation of Temperature and Measures to Reduce Temperature. 4.4.8.4 cooling measures and equipment selection and development, mining layout measures; Ventilation system and ventilation management measures; Sealing and drainage measures for geothermal and hot water mines; Measures such as artificial refrigeration and cooling; Selection of cooling equipment; Economic and technical comparison of various measures; Cooling measures and expected results. 4.4.9 Mine ventilation detection equipment configuration 4.5 Dust disaster prevention 4.5. 1 Dust hazard and dust prevention measures 4.5. 1 Analysis of dust category and hazard degree: Dust category, free silica content, coal dust explosiveness, powder (coal) dust hazard, etc. 4.5. 1.2 Determination of dust prevention measures: Determine the positions of dust sources such as mining faces, loading points, unloading points, transportation and storage. , and take dust suppression, dust removal, dust capture and comprehensive dust prevention measures for the coal dust accumulated in the roadway. Dust removal in mining face. 4.5.2 coal seam water injection 4.5.2. 1 The design of coal seam water injection discusses the necessity of coal seam water injection according to the physical characteristics of coal seam, the physical characteristics of coal seam roof and floor, and the structural characteristics of coal seam. Selection of water injection technology, parameters and equipment in 4.5.2.2, determination of water injection parameters and water quality; Selection of water injection system, water injection equipment and instruments. 4.5.3 Underground fire fighting and spraying (water supply) system Underground fire fighting and spraying system: water source and water treatment, water quantity, water pressure, water quality, water supply system (system selection, pool, water storage bin, pressurization, decompression and pipe network), water point devices (fire extinguishing devices, water supply plugs and spraying devices), pipelines, pressurized pumping stations and automatic control. 4.5.4 Dust monitoring and personal protective equipment 4.5.4. 1 Main detection methods and frequencies, dust sensor arrangement and detection instruments. 4.5.4. 1 Selection and configuration of personal protective equipment. 4.5.5 Explosion-proof measures (mines with coal dust explosion danger), dust-proof measures, electrical equipment and protection, stone dusting, measures to prevent coal dust explosion caused by fire source, etc. 4.5.6 Explosion-proof measures (coal dust explosion danger or gas gushing out of the mine) Measures taken to prevent the explosion from expanding locally for the whole mine disaster. 4.5.6. 1 Flameproof water shed (water tank, water bag) Structure, selection, calculation and arrangement of water shed, and water supply system of water shed. Structure, layout and calculation, requirements and raw materials of 4.5.6.2 refractory rock powder shed. Attachment: Layout of flameproof water shed and stone powder shed. 4.5.7 Dust prevention of mine ground production system Dust prevention of ground production system; Dust prevention of gangue discharge system; Spraying, sprinkling and dust removal measures and equipment. 4.5.8 Mine total dust and respirable dust inspection instruments are equipped with 4.6 fire prevention and extinguishing 4.6. 1 coal seam spontaneous combustion risk and fire prevention and extinguishing measures 4.6. 1 coal seam spontaneous combustion risk parameters and mine fire characteristics. Characteristics and laws of spontaneous combustion of coal seams in adjacent mines, and the ignition period of coal seams. 4.6. 1.2 Analysis and prediction of coal spontaneous combustion are analyzed from the aspects of chemical composition and metamorphic degree, porosity, geological structure and endogenous cracks, moisture, carbonization degree, coal and rock composition, sulfur and phosphorus content, gas content, oxygen absorption speed, temperature and development mode, coal mining method and ventilation mode. 4.6. 1.3 Preventive measures for coal seam spontaneous combustion should be based on the characteristics of coal seam spontaneous combustion, pioneering mining methods and advanced and applicable scientific and technological achievements, select appropriate pioneering mining methods, determine the methods for predicting spontaneous combustion, and set up a fire monitoring system. 4.6.2 Fire prevention and extinguishing methods 4.6.2. 1 Grouting fire prevention and extinguishing: design basis and main technical data, selection of grouting system, grouting method, calculation and selection of grouting parameters, selection of grouting materials, preparation of slurry, grouting pipeline and mud pump. Attachment: Grouting system diagram. Nitrogen fire prevention and extinguishing in 4.6.2.2: design basis and main technical requirements, nitrogen injection process system and equipment, nitrogen injection parameters. Attachment: nitrogen injection process system diagram. Corrosion inhibitor fire prevention in 4.6.2.3: design basis, corrosion inhibitor selection, spray injection process system, parameter calculation and spray injection equipment. 4.6.2.4 gel fire prevention and extinguishing: selection of main materials, base materials and coagulant, parameter calculation, spraying and spraying equipment, etc. Other fire prevention and extinguishing methods in 4.6.2.5: foam fire extinguishing technology, pressure equalizing ventilation, etc. 4.6.3 Underground fire prevention measures caused by electrical accidents 4.6.3. 1 Underground electrical equipment chamber fire prevention measures, underground electrical equipment fire prevention measures, underground cables and various protections of underground electrical equipment. 4.6.3.2 belt conveyor fire prevention measures: underground flame-retardant conveyor belt selection, roadway lighting, anti-skid protection of driving wheels, smoke prevention, temperature prevention and coal piling protection devices, automatic sprinkler and belt deviation prevention devices, automatic fire extinguishing system in the nose and tail chamber, fire alarm devices and monitoring devices. Prevention measures of other fires in 4.6.3.3: measures to prevent underground fires caused by open fires on the ground; Measures to prevent ground lightning from spreading underground and prevent fire caused by underground blasting; Fire-proof and explosion-proof measures for air compressor; Measures to prevent mechanical friction and impact from igniting combustible materials. 4.6.4 Underground fire-proof structures, underground fire-proof door rooms, fire-fighting material warehouses, firewalls, mining areas and closed working faces, etc. 4.7 mine water prevention 4.7. 1 mine hydrogeology 4.7. 1 hydrogeological conditions mine hydrogeology conditions, mainly including (separated) water layer type, mine hydrogeology conditions and hydrogeology types; Water inrush and water accumulation in mine fields near mines and small (ancient) kilns, as well as water conductivity of surface water bodies, abandoned mines, water accumulation in old ponds of small kilns and geological structures; Quaternary aquifer characteristics and water accumulation; Bad drilling conditions are closed; The relationship between the main aquifer or water accumulation area of the mine and the main coal seam; Normal water inflow and maximum water inflow of mine. 4.7. 1.2 mine hydrogeological characteristics, flood types and threat degree analysis, possible water inrush location and water inflow prediction. 4.7.2 Determination of mine water prevention measures 4.7.2. 1 Safety guarantee measures taken in mine development and mining. The location and horizon selection of mine development projects, and the water prevention measures adopted by mining projects. Design of coal (rock) pillar for water control in 4.7.2.2. Types of waterproof coal (rock) columns, design principles, calculation basis, methods and results of waterproof coal (rock) columns. Measures and equipment for regional and local water exploration and drainage in 4.7.2.3. Principles of water exploration and drainage, determination of water exploration and drainage methods, selection of water exploration and drainage equipment and safety measures in the process of water exploration and drainage. 4.7.2.4 hydrophobic antihypertensive. According to the specific hydrogeological conditions of the mine, the location and method of dewatering and depressurization are determined, the dewatering project is designed, and the dewatering and depressurization equipment is selected. 4.7.2.5 waterproof door. The necessity, specifications, chamber position, design calculation results, construction and management requirements of waterproof gate are analyzed. Underground drainage in 4.7.2.6. Normal and maximum water inflow in different periods of the mine; Drainage height and time limit, additional height required by the ground and drainage method; Selection of drainage equipment and operation points before and after pipeline siltation (parameters should be revised considering altitude and parallel operation); Check the number of working, standby and maintenance pumps, preset conditions, drainage capacity, motor power and suction vacuum height, operation combination of pumps and pipelines, water filling mode and pump start-up and adjustment mode; Check the pipe diameter, material, connection mode and wall thickness of drainage pipeline, tripping times of valves and pipelines, and ways and means of well arrangement; Water quality ph