I. Compilation Description (1) Basis for compiling the bidding documents for the sidewalk project of Huanghe No.2 Road 1. ×××××; 2. Minutes of pre-bid meeting and information of addendum book; 3. Current national design specifications, construction specifications and acceptance standards; 4. Information obtained from site survey and construction investigation; 5. The existing technical ability, mechanical equipment, construction management level of this unit and the construction experience accumulated in road projects such as expressway and urban roads for many years. (2) Compilation principle 1. This construction scheme is prepared on the premise of ensuring quality: construction period and safety: 2. According to the fact that there are few projects under construction in our unit, a large number of mechanical equipment and technical personnel can be put into this project construction; 3. Considering all kinds of factors comprehensively, leave room in time limit for a project arrangement, personnel and equipment, and choose the best construction method; 4. According to the construction characteristics of this contract section, the corresponding construction schemes and measures are mainly considered; 5. Establish the idea of "quality first, customer first" to ensure that the engineering quality of this contract section reaches the excellent standard. 6, increase investment, reasonable deployment, scientific management, to ensure the project completed on schedule. Two. Project overview The first contract section of the sidewalk project of Huanghe No.2 Road in Binzhou New District starts from Xinli River in the east and ends at Bohai Sea 18 Road in the west, with a length of about1630m and a sidewalk width of 5m. The sidewalk structure adopts 20* 10*6cm Dutch brick, and compacted plain soil, 15cm lime stabilized soil, 3cm7.5 cement mortar and 20* 10*6cm Dutch brick from bottom to top. Third, the construction period 1. The contract documents stipulate that this project will start on August 24th, XX, and be completed on September 20th, XX, with a contract duration of 28 days. 2. In order to ensure the construction period, our unit will increase construction investment, adopt advanced construction technology and control by stages as follows. 2.1.Foundation cleaning, foundation trench excavation, subgrade rolling and lime-soil construction will be completed by the end of August. 2.2.Complete the laying of sidewalk blocks and the installation of kerbs before September 20th. 2.3.September 20th is the closing stage. Four. Project organization: Our unit has set up a project management department to implement the project manager responsibility system and fully perform this contract. Project intends to set up a professional construction team, responsible for the division of labor to undertake earthwork, pavement and other projects. See the project organization chart of this contract for the construction organization. V. Construction preparation 1. Construction personnel and equipment will enter the site: our unit will carry forward the style of hard work and dare to fight hard, strengthen the construction organization and management, mobilize our excellent construction team and excellent mechanical equipment according to the promise of the tender, enter the site in the fastest way within the time limit specified by the owner, strictly perform the contract, and divide troops to make various construction preparations at the same time. 2. Temporary buildings for production, office and living: According to the construction characteristics and field investigation of this project, it is planned to arrange temporary facilities for production and living near the line. The warehouse, workshop and my dormitory use prefabricated houses. 3. Power consumption for construction: provide enough generator sets. 4. Construction water: River water is used for construction. 5. Construction access road and construction site: The existing roads used in the construction site are laid on the existing pavement to strengthen protection. Strengthen the protection of the original road in the construction process. 6. On-site communication: The project manager department is equipped with mobile phones, and each construction team is equipped with walkie-talkies. 7. Establish a laboratory: the laboratory is responsible for the inspection of various materials, various mixture ratio tests and sample delivery inspection of various construction projects. 8. Road-building material sand: Linqu high-quality sand is used. Lime: Lime processed near Zhangdian is adopted. Cement: Cement produced in Qinglong Mountain is selected, with stable and reliable quality. 6. Earthwork construction 1. According to the design drawings, the construction period requirements, the distribution of borrow sites and the amount of borrow, the construction teams to be put into operation are as follows: the first construction team is responsible for the construction of b 18~b 16, and the second construction team is responsible for the construction of b 16~ Xinlihe Bridge. Both teams started work on all fronts at the same time. 2. Preparation before construction 2. 1 Before subgrade filling, the roots and weeds on the original ground should be removed. 2.2 Fill-and-dig junction must be fully compacted. When the original ground slope is steep, the steps should be excavated and compacted by small compaction machinery. 3. When the sidewalk is excavated, the lime soil shall be thrown out of the pavement with an excavator, the foundation trench shall be leveled, and the rolling inspection shall be carried out. 4.4. 1 List of subgrade earthwork filling construction: firstly, clear the trees, jungle grass stems and turf in the land area, and transport them to the place designated by the supervision engineer, and the clearing depth shall be as required by the supervision engineer. After cleaning, the site should be loosened, leveled and compacted according to the requirements of the specification. 4.2 When the cross slope of the ground is steeper than 1: 5, the original ground should be dug into steps, and the width of the steps should meet the needs of paving and compaction equipment operation and should not be less than 1m, and the steps should be made into a downward slope of 2%-4%. 4.3. Inspection of compaction degree: After rolling, self-inspection shall be carried out in time, and it shall be checked by nuclear densitometer and ring cutter. After passing the inspection, it shall be reported to the supervision engineer for inspection, and the construction of the next working procedure shall be carried out only after passing the sampling inspection by the supervision engineer. Seven. Pavement surface construction 1. The main structural form of the pavement in this contract section is that the pavement structure is compacted from bottom to top with plain soil, 15cm thick lime stabilized soil, 3cm7.5 thick cement mortar and 20* 10*6cm thick Dutch brick. There are also kerbs. 2. Division of tasks: Our company has set up a sidewalk construction team to undertake the construction tasks of all ground works in this contract section. 3. Lime-stabilized soil subbase: the thickness of lime-stabilized soil subbase is 15cm, and the ash content is 12%, which is constructed by road mixing method. 3. 1 construction preparation 3. 1 lower bearing layer: check in advance to ensure compliance with the specification requirements, and deal with the unqualified sections in time to ensure normal construction. 3. 1.2 machinery: do a good job of machinery maintenance in advance to ensure that the machinery used is put into construction in good condition. 3. 1.3 personnel: set posts and personnel, establish a clear post responsibility system, conduct personnel training before starting work, and unqualified personnel are not allowed to take up their posts. 3. 1.4 material: firstly, sample the incoming lime. After passing the test, prepare enough materials, determine the source of materials, and ensure timely supply. 3. 1.5 mixture composition design: 3. 1.5. 1 Compaction test shall be carried out according to the mixture ratio specified in the design to determine the maximum dry density and optimum water content. 3. 1.5.2 Make the test piece according to 98% of the maximum dry density of the optimum water content, keep it wet for 6 days at the specified temperature and humidity, and soak it in water for 1 day, and then conduct unconfined compressive test. 3. 1.5.3 The unconfined compressive strength shall be tested according to the specification requirements. If the test results do not meet the design requirements, the reasons should be analyzed and the mixture ratio should be adjusted until the test results are qualified, and then the selected mixture ratio should be submitted to the supervision engineer for approval. 3.2 The construction adopts the construction method of spreading lime manually, mixing materials with wb2 100 road mixer, leveling by Dongfanghong 70 bulldozer with pyl60b grader, and rolling by roller. Quicklime must be soaked in water for 7 days in advance. Measure lime strips before paving, and then spread lime evenly to ensure the quality of lime stabilized soil. Use wb2 100 road mixer for mixing. When mixing, start from both sides and gradually proceed to the middle until the mixing is completed. Lime stabilized soil should be continuously stirred twice, and each stirring should overlap 20-30cm to prevent mixing. After mixing is completed, it should be shaped in time, and the lime content of the mixture should be sampled on site. After the completion of rolling, maintenance should be carried out immediately. The method of health preservation adopts sprinkler to sprinkle water. Eight. Measures to ensure project quality 1. Quality policy and quality objective 1. 1 quality policy: quality first-careful construction, abiding by contracts and striving for first-class. 1.2 quality objective: 1.2. 1 The quality of all subdivisional works reaches the excellent grade in the Standard for Quality Inspection and Evaluation of Highway Engineering (jtj07 1-98). 1.2.2 Ensure that the quality system operates effectively according to GB/T 19002-IS09002 standard. 1.2.3 meet the requirements specified by the owner in the project contract and establish a good social reputation. 1.2.4 Be responsible for the basic quality of the project for life. 2. Quality assurance measures for production factors: Do a good job in quality planning from the beginning of the project, establish a quality post responsibility system, decompose the project quality objectives into various departments, check them from three levels of management, implementation and inspection, and take a set of practical measures from five aspects of personnel, equipment, materials and process environment to ensure high-quality projects. 2. 1 quality responsibility of each department 2. 1. 1 quality responsibility of construction team The construction team is responsible for the construction quality of the project, and carries out the construction in strict accordance with the requirements specified in the specification, and it is forbidden to rework. 2. 1.2 Quality Responsibility of Construction Management Section 2. 1.2. 1 Ensure that all technical data of the project are correct. 2. 1.2.2 seriously implement the requirements of is09002 quality management system and make detailed technical disclosure, so that every employee can clearly understand the quality requirements of this type of work. 2. 1.2.3 Responsible for the inspection and guidance of on-site technical work to ensure the accuracy of measurement data and construction setting-out. 2. 1.3 Quality Responsibility of the Quality Inspection Department The Quality Inspection Department is responsible for leading and organizing the quality inspectors of the laboratory and team, doing a good job in the quality management of the project, and being responsible for the quality control, inspection and supervision of the whole process of the project construction. 2. 1.4 Quality Responsibility of Machine Materials Department The procurement of building materials and machine parts shall be carried out in strict accordance with is09002 Material Procurement Procedure to ensure the quality of materials and machine parts is qualified. If the materials and machine parts are unqualified, the buyer shall be responsible for the return and replacement, and the return and replacement shall be timely. 2. 1.5 Quality responsibility of the construction team leader 2. 1.5. 1 Responsible for the engineering construction quality of the team. 2. 1.5.2 Responsible for the detailed technical disclosure of each type of work personnel of the construction team. 2. 1.5.3 is responsible for checking and guiding the implementation of construction operation procedures of each team and the correct use of building materials (including site construction and team handover) to ensure the engineering quality. 2. 1.6 Quality responsibility of other types of work 2.1.6./quality responsibility of excavator and loader drivers. Excavators and loader drivers should excavate in strict accordance with the requirements of construction lines, make clear the slope quality requirements, carefully repair the slope, make clear the requirements of cutting flatness, and construct in strict accordance with the requirements of on-site technicians. 2. 1.6.2 Quality responsibility of motor grader and bulldozer driver. Motor grader and bulldozer driver should make clear the filling width, superelevation, flatness and transverse slope requirements of each layer of trench to ensure the construction quality. 2. 1.6.3 The quality responsibility of the roller driver is clear about the quality requirements of subgrade compaction, and the required compaction times are not perfunctory. 3. Strictly carry out the test' 3. 1 Assign personnel with strong technical ability and rich experience to take charge, and equip a group of technicians with strong sense of responsibility to give full play to the key role of the test work in quality control. 3.2 Each batch of incoming building materials must be sampled and sent to the laboratory for inspection according to regulations, and the quality of incoming materials shall be strictly controlled. Engineering finished products and semi-finished products must be sampled and submitted for inspection according to the sampling frequency specified in the specification. 4. Seriously implement the technical specifications 4. 1. The construction of all projects must strictly follow the provisions of the corresponding technical specifications and make construction records truthfully. The person in charge of the construction of each sub-project and the quality inspector of each team should strictly check and be responsible for the inspection. 4.2 The construction shall be carried out in strict accordance with the requirements of the drawings. If the design needs to be changed according to the actual situation, relevant procedures must be performed and reported to the supervision engineer for approval. No one has the right to change it without the consent of the supervision engineer. 6. Quality assurance measures for major subdivisional work. Duration 1. Set up a "lean, efficient and authoritative" project management department to effectively strengthen the leadership and organizational management of the project. 1. 1 Appoint the director of the engineering department with rich construction experience as the project manager, and appoint competent personnel to be responsible for the leadership and management of key positions. 1.2 equip technicians with complete specialties, familiar business and strong sense of responsibility to enrich key technical management positions, and be responsible for the specific organization and command of various projects to ensure the realization of specific goals. 2. Increase investment and act immediately. The construction organization design is more scientific, practical, operable and flexible, and can effectively guide the construction. 3. Schedule control planning and management 3. 1 Schedule control is the dynamic management of all employees, the whole process and all directions. On the premise of ensuring the total construction period, we will make a production schedule that conforms to the actual situation, and adopt the construction method of combining flow operation and parallel operation to control the total construction period. 3.2 The project department will hold a production dispatch meeting every day, adjust the plan according to the progress completion and resource changes reported by each construction team every day, find out the main factors affecting the progress, and conduct research. 3.3 Schedule Management Responsibilities of each department In order to effectively control the progress of the project, the project department will issue weekly schedule plans and monthly adjustment plans to each department once a week, clarify the schedule management responsibilities, and decompose the schedule target responsibilities to each department, department and team until every employee. Establish a departmental schedule management responsibility system, combine the project quality and cost, and under the leadership of the project manager, check and assess all departments, units and teams, so that the assessment results are linked to the interests of employees. 3.3. 1 Construction Department's schedule management responsibilities 3.3. 1. 1 Formulate a reasonable construction plan, organize the construction comprehensively according to the specific conditions of the project, and avoid unreasonable secondary loading and unloading and secondary transshipment. 3.3. 1.2 Reasonably dispatch construction machinery and personnel, optimize construction route and operation mode, and make machinery and personnel give full play to their potential' 3.3. 1.3 Strengthen supervision and inspection to prevent the occurrence of slowdown. 3.3. 1.4 Strengthen the construction quality control and reduce the time delay caused by rework. 3.3.2 Technical Department's schedule management responsibilities 3.3.2. 1 Monitor the actual situation of daily schedule, carefully analyze the reasons for the advance and lag of the construction period, and put forward reasonable suggestions for adjusting the construction scheme. 3.3.2.2 strengthens the management of construction technology, and puts an end to the time delay caused by technical problems. 3.3.2.3 adjusts the progress plan every day according to the meeting of the project department, and communicates the plan to all departments in writing. 3.3.3 The responsibility of schedule management of the Machine Materials Department should strengthen the contact with the construction department, understand the specifications and performance requirements of various materials in the construction process, ensure timely and accurate material supply, and avoid shutdown due to untimely or unused material supply. 3.3.4 Office schedule management responsibilities 3.3.4. 1 Actively coordinate the relationship with local government departments and local people to ensure the smooth progress of the project. 3.3.4.2 completes logistics support and strengthens the discipline on the construction site. 3.3.4.3 should do a good job in the ideological work of employees and solve their worries. 3.3.5 The progress management of the finance department is responsible for ensuring the timely recovery of funds and the arrival of production funds, and ensuring the continuity of production. 3.3.6 Schedule Management Responsibilities of Construction Team (Production Team) 3.3.6. 1 Organize personnel and equipment reasonably according to the production tasks assigned by the project department to ensure the construction progress. 3.3.6.2 does a good job in the management of the construction site, optimizes the construction scheme, organizes the coordination of various types of work, and strengthens the connection between processes. When the construction is difficult and the construction period is tight, it is necessary to study the countermeasures in time, take effective measures, and organize personnel to work overtime for assault when necessary to ensure the smooth completion of the project task, but it must be on the premise of ensuring quality. 3.3.6.3 provides engineering statistics and other engineering information in time to find out the weak links and restrictive factors that affect the progress of the project, so that the project department can make rapid adjustments to the changes of the progress of the project. X. Construction measures in busy farming season The construction period of this project is short, and the construction in busy farming season will be affected by many factors such as tight local material supply and labor shortage. Therefore, effective guarantee measures should be formulated to ensure the smooth construction of the project. 1, the Engineering Bureau, as a strong backing, increased investment in the project to ensure the normal construction of the project. 2. The on-site project department shall make a plan on the amount of materials needed, confirm the sources of materials, and prepare enough materials needed for construction before the arrival of the busy farming season so as not to miss the project. 3. The on-site project department shall formulate a labor employment plan to ensure that the project construction personnel are sufficient during the busy farming season. 4. Adjust the construction sequence in a planned way, so that the construction can be carried out in a planned and uninterrupted way. Eleven, the rainy season construction arrangement into the rainy season construction, to develop detailed rainy season construction measures, after examination and approval by the project manager, submitted to the supervision (owner) for examination and approval, approved before implementation. During seasonal construction, all functional departments of the project management department should strengthen the inspection of the construction site and handle the problems in time when found. The rainy season in this area is July, August and September, with concentrated rainfall. Therefore, it is necessary to organize the corresponding engineering construction and flood control safety management of the site. Twelve. Quality and safety assurance system (1) Quality assurance system 1. See attached figure 2 for the quality assurance system. Quality management Our company is now fully implementing GB/T 19902-IS09002 quality management standards. This project will adhere to the overall, whole process and all-round quality management, and set up a quality management leading group, with the project manager as the team leader and the project leader as the deputy team leader. Each ZuoYeDui shall have full-time quality inspectors to ensure the engineering quality with the quality of work and the overall quality of the whole bid section with the quality of divisional works. See attached figure for quality management organization. 3. Quality Control Plan 3. 1 Quality Microcomputer Management We will make use of the characteristics of high efficiency, rapidity and accuracy of microcomputer, give full play to the advantages of computer management, timely and accurately summarize and analyze quality data, and obtain quality appraisal results. We intend to analyze and control from the following aspects. 3.2 Establish a series of quality assurance system 3.2. 1 Establish a joint review system for design documents: after receiving the design drawings, the chief engineer will preside over the joint review, and the construction department and the quality inspection department will participate in the joint review of design documents, so as to clarify the engineering quality requirements, make joint review records, report the design problems in time, and immediately organize the above-mentioned personnel to study, implement and file the returned design problems and design changes. 3.2.2 Establish technical disclosure system: the technical department shall make technical disclosure to the team leader of each construction team and make records. The team leader shall make classified technical disclosure to the workers of all types of work, so that the workers of all types of work can clearly define their responsibilities and technical requirements, and strive to ensure the quality of rape. 3.2.3 Pre-control: All kinds of mix design and pre-test used in construction shall be reported to the supervision engineer before the construction of each division according to the design requirements. 3.2.4 Process control: work handover and quality mutual inspection system, in which each construction team conducts self-inspection on the project quality. When the handover point appears, the two construction teams conduct written mutual inspection (reflected in the construction log), and the successor who thinks that the previous process does not meet the quality requirements has the right to refuse to accept it, and the original construction team should immediately repair and correct it until it meets the quality requirements. If the recipient thinks the work is qualified, the construction team leaders of both parties shall sign the relevant columns of the other party's construction log for confirmation. 3.2.5 Post-event control: resolutely put an end to the occurrence of nonconforming products. 3.2.6 Establish grading data audit system: the calculation part of original measurement record and blasting calculation record must be checked and signed by a second person to prevent mistakes. Major technical problems should be signed by the project technical director and the project manager, and especially major problems should be reported to the chief engineer of the head office for review to ensure the quality. 3.2.7 Establish the daily meeting system of the project department: presided over by the project manager, attended by the heads and technicians of various departments and construction teams, to study and solve the "frequently-occurring diseases" and "difficult diseases" in the project quality, find out the reasons, put forward countermeasures and implement them. 3.2.8 Make a Quality Report 3.2.8. 1 In order to timely and accurately reflect the quality status of the construction site and provide correct raw data for quality microcomputer management, on-site technicians should report the daily quality inspection in time. According to the provisions of the current highway engineering quality inspection standards in 3.2.8.2, after the completion of the sub-project, it is necessary to carefully organize inspection and evaluation (technical personnel self-inspection, full-time quality inspector re-inspection, supervision engineer inspection and approval), and attach the original records of quality inspection to make a statistical report. (2) Safety guarantee system 1. Safety assurance measures 1. 1 Establish a safety leading group with the project manager as the team leader, the construction section chief as the deputy team leader, and the captains of all construction teams as the team members. The Project Department shall have full-time safety officers, and all functional departments and professional teams shall have part-time safety officers, who shall be fully responsible for the construction safety management, and the responsibility shall be carried out by people, so that the safety work shall be handled by special personnel. Establish a clear safety goal: adhere to the policy of "safety first, prevention first, education first, system guarantee" and resolutely put an end to man-made major accidents. 1.2 Establish a safety guarantee system 1.2. 1 Set safety production targets, implement the progressive reward system for the unit's continuous safety production day and the accountability system for the accident parties and leaders, and combine administrative and economic rewards and punishments, conduct monthly assessment and cash it at the end of the month. 1.2.2 establish a system of "daily inspection and monthly evaluation" for safety work, always speak and shout the slogan of "quality first, safety first" to make safety awareness deeply rooted in people's hearts. There is no possibility of paralysis. Safety personnel must check the safety production situation every day, find and report unsafe factors and accident signs, and take effective measures in time to prevent unsafe factors. 1.2.3 Each professional ZuoYeDui must supplement and formulate perfect safety construction rules and regulations according to the engineering characteristics, and implement them seriously after being approved by the project manager. 1.2.4 All kinds of mechanical equipment shall be operated by full-time personnel who have passed the examination, and the operation procedures shall be strictly implemented. Unauthorized personnel without training and assessment are strictly prohibited from operating without authorization. Implement the single package mechanism, and the responsibility for safety lies with people. Strengthen transportation management, abide by traffic rules, drive in a civilized way, obey the management of local transportation departments, and prevent traffic accidents. 1.3 Strengthening safety education and setting of safety measures 1.3. 1 Operators of all types of work must strengthen pre-job training, systematically master relevant safety knowledge, and hold relevant certificates after passing the examination. "1.3.2 Make use of every opportunity to popularize safety knowledge education and improve employees' knowledge of natural disasters and their ability to deal with dangerous situations. 1.3.3 the project department and the construction team will set up security guards to strengthen contact with the local public security department, and * * * will maintain the public security management in the construction area.