1 Grasping the price of materials is related to the investment in landscape engineering, and the cost of engineering materials generally accounts for more than 60% of the total investment, so the price of engineering materials directly affects the size of the project cost. At present, the price of engineering materials has basically formed a pattern of market regulation, and the material price must be dynamically managed according to the law of market change. Dredge material information channels, hire information workers from major material production bases and materials markets, material managers collect materials and refer to news media in time, and the engineering cost management department publishes recent material prices. , so as to establish their own network information. The material quotation system will be implemented, and the construction unit (construction team) will inform the management unit of the procurement channels, time and price of the main materials in each phase of the project. It is conducive to strengthening mutual supervision, enhancing the awareness of nuclear labeling and preventing irregular transactions in circulation. A large number of new materials are often used in garden civil engineering, such as Kabulong, line drawing film, 70 sand, American sand and so on. According to the above methods, we can master a lot of material price information, choose the best way, and effectively control the material price. 2. Mastering the final accounts of completion 2. 1 When establishing the reporting system of final accounts of construction, the total amount of project funds payable to the construction unit is often not equal to the cost determined in the construction drawing budget. Standardize the team of construction units, prepare reports on a regular basis, and analyze the design changes, engineering additions and modifications, acceptance, visas, and substitution of concealed engineering materials in the reports, so as to effectively prevent unnecessary wrangling over the project cost. 2.2 Scientific and accurate calculation of quantities requires hard training of basic skills. According to the as-built drawing, the drawing size should be accurate, the calculation formula and unit should be accurate, the calculation manual should be accurate, and the material type should be registered. Because the garden materials exceed the quota, there are many subheadings, such as: 70 sand instead of stone rice, American sand instead of stone rice, from ordinary pebbles to yuhua stone, various modeling floors. While strictly implementing the relevant quotas, prices and expenses of national garden engineering cost, quota conversion is carried out to control the cost. The implementation of bidding system is a powerful guarantee to reduce the project cost, which can effectively control the quality, progress and investment of design and construction and achieve good economic and social benefits. 3. 1 Adhere to and improve the bidding system for garden construction. First of all, the construction unit should treat all bidders equally, and bidders should improve their competitiveness with their qualified ability, good reputation, excellent quality, advanced construction scheme, high management level, suitable construction period and reasonable quotation. Due to the imperfect market mechanism, inadequate management measures and imperfect rules and regulations, there are some weak links and loopholes in the bidding process of garden construction. (1) Bidding activities shall follow the principles of openness, justice, fairness, honesty and credibility. (2) In order to win the competition, a bidder who wins the bid at a low price or even quotes at a lower cost will be disqualified. In the face of winning the bid at a low price, construction enterprises cut corners and take "crooked ways" to survive, disrupting the market and breaking away from the purpose of bidding. (3) Set the pre-tender estimate. Because of the pre-tender estimate, ① the construction unit has made clear its financial obligations to the proposed project; (two) to provide a basis for the higher authorities to approve the investment scale; (3) As a standard to measure whether the tender offer is lower than the cost, it is also one of the main criteria for bid evaluation. (4) Construction enterprises need to make their own quotas to realize the benefits of cost control. The construction drawing budget is the basic data of cost planning and control, and the construction quota of an enterprise is the basis for compiling the unit project construction budget and cost plan, and also the standard for measuring the consumption of labor, materials and machinery. It is convenient for bidding and internal cost control to estimate the planned cost by comparing the construction budget with the construction drawing budget. At present, the establishment of enterprise quota can guide enterprises to adjust according to the productivity of their own enterprises on the basis of national basic quota. 3.2 The key to control the project cost lies in the design stage. We should not only pay attention to the price management in the construction stage, but also pay attention to the scheme determination in the early stage of the project and the optimal combination in the design stage, so as to facilitate the project cost management. The design stage is the main stage to generate and determine the project cost. Whether the design scheme is reasonable or not and the design quality directly affect the project cost. According to the design budget, determine the cost of landscape engineering, make technical and economic evaluation, analyze the economic and social benefits of this project, and choose the optimal design scheme. At present, design management is still relatively weak, and investment is not linked to design, which makes the problem of unreasonable design increasingly prominent. Landscape architecture is a highly comprehensive, constantly evolving and developing compound discipline, including waterscape, greening, rockery, pavilions, garden water supply and drainage, garden power supply and lighting, etc. The phenomena of "mistake", "leakage", "supplement" and "forgetting" occur from time to time, which brings many obstacles and difficulties to the construction and causes many problems. (1) Introduce the competition mechanism and implement the bidding for engineering design. According to the requirements of market economy, we should actively choose quota design and control the project cost in the design stage, at the same time, carry out design bidding, implement the new mechanism of design according to the price, push the project design to the market, optimize the design scheme and strengthen the effective control of investment through the technical comparison and economic benefit evaluation of multiple schemes. (2) The cost of changing the design only reflects the design difficulty, without considering the reasonable project cost. On the basis of the existing charging method, a new mechanism of saving investment and proportional commission is added, which organically combines the immediate interests of designers with the project cost and fundamentally reverses the problems that designers do not attach importance to investment and technology is out of touch with economy. China is in a transitional period from a planned economy to a socialist market economy. Engineering economic personnel should adapt to the actual work requirements in terms of professional quality and market adaptability, which is determined by the characteristics of engineering cost work and is also necessary for engineering construction under the conditions of socialist market economy. According to the characteristics of engineering economy, establish and improve the necessary education standards. Strengthen the management of certified personnel, establish an effective annual examination system, highlight practical skills training in training and assessment, and improve comprehensive quality to meet the requirements of establishing a socialist market economic system. 3.3 Strengthen project management and control project cost. The ultimate goal of project management is to produce low-cost, high-quality and short-term projects, strengthen project management and implement the project manager contract responsibility system. The project manager is responsible for the management from construction organization design, blue prints.the design, on-site construction management, project acceptance visa to completion settlement, so as to improve the quality of the construction team, control the project cost, control the project contract, make people share weal and woe with the project, give full play to their respective advantages, improve the investment benefit of the construction, speed up the construction, better create excellent urban garden works of art, and realize the double harvest of social and economic benefits. The key to strengthening the construction of professional team and continuously improving the quality of professionals lies in personnel training. It is necessary not only to carry out training with certificates, but also to strengthen the continuing training of certified personnel, and to adopt various ways to meet the requirements of compound talents such as business, policy, law, foreign languages and exchanges with counterparts all over the country. At the same time, we should consider the connection with the national qualification system for cost engineers, and gradually improve the current training method for budget personnel with certificates to the qualification training for cost engineers.
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