Self-inspection of electrical installation projects, how to fill in mutual inspection records

1. Project Overview: 1. ********* New Campus Landscape Project is located to the north of Chengnan Avenue and west of Hudong Road in ********* Economic and Technological Development Zone The total land area is 311,000 square meters, of which the hard paving area is about 22,000 square meters, the water landscape area is about 2,700 square meters, and the green landscape area is about 281,300 square meters. 2. The square within the landscape consists of three squares: the central square, the entrance square and the school square. The main attractions are: Zijin Garden, Fisherman’s Wharf, Teacher-Student Bridge, Wharf Landscape Platform, Main Axis Scenic Area, Living Area Paving, It consists of circular sidewalks, development land pavements, living area pavements, parking lot colored pavement bricks and grass-embedded brick pavements. After completion, it will become a natural ecological landscape integrating leisure, learning and entertainment. 3. This project is invested by ************ and designed by ******************. The planned construction period is: 60 days. 4. Project features: This project covers a large area, has many and exquisite scenic spots, complex local process requirements, short construction period, smooth and natural earthwork and landscaping lines, and the project quality is the best in the market. 2. Construction layout: Based on the preliminary information about this project and the conditions of the construction site, combined with the company's previous construction experience and work capabilities, the construction layout of this project is formulated. 1. Arrangement principle: Strengthen dynamic management during the construction process, reasonably arrange the input of construction machinery, equipment and labor, and on the premise of ensuring the quality of each process, strive for time and speed, scientifically organize flow and cross operations, and strictly enforce labor Discipline, strict construction scheduling orders, strictly control the construction period of key processes, and ensure that the construction tasks are completed on schedule, with high quality and efficiently. 2. In order to ensure the smooth progress of the construction and ensure the quality of the project, the Garden Landscape Engineering Project Department of Jiangning Campus of Nanjing Normal University was established to be responsible for the overall management of the project, use modern management methods, reasonably arrange the construction flow, and coordinate the construction of various branches and projects. , to ensure project quality and construction progress. 3. See the table for the construction organization and management organization. 4. Project management objectives: 4.1. Project duration: Consider that the total construction duration of this project is 58 days. (July 3, 2003 to August 30, 2003) For details, please refer to the overall construction schedule; 4.2. Project quality: Quality is the life of an enterprise. Our company has always adhered to the quality first policy. In the construction management objectives of this project On the basis of strict self-inspection, mutual inspection, and handover inspection, we must listen to the opinions of the owner, design, supervision and other departments with an open mind, and accept their opinions on various projects. Supervise the quality of construction and ensure that the quality of the project is excellent. 5. Safe construction: 5.1. Ensure that safety accidents are "0" during the construction period; 5.2. Strictly implement the "Safety Inspection Standards for Construction Construction" (JGJ59-99), strengthen leadership inspections on production safety, and ensure the safety of the project department The production status shall be inspected and evaluated upon completion. 6. Construction sequence: 7. Arrangement and equipment of construction personnel: Based on past construction experience, consider labor clearing for the construction team of the construction labor service industry. The construction team is required to have good construction experience, the personnel should be relatively fixed, and technical special operations personnel must hold certificates to work. 3. Construction preparation 1. Construction site preparation: 1.1. Set up four mobile houses as public rooms for the project department, five mobile houses and four brick houses as staff dormitories, write slogans and project overview and other relevant information, and set up a brick warehouse One room is used as a storage place for tools, utensils and scattered materials; 1.2. Use an excavator to dig drainage ditches on site to ensure that there is no accumulation of water in the construction site and that the water flows to low-lying areas for centralized discharge; 1.3. Review and test the permanent water provided by the builder Coordinates and elevation control points, measurement and construction site control network, control stakes arranged, fixed and protected with concrete after verification, and flags inserted to avoid damage. 1.4. Calculate the engineering quantities and material analysis according to the construction drawings provided, and organize the arrival of mechanical equipment and materials in a planned manner according to the calculation results, and stack them at the designated location; 1.5. Set up a main distribution box, bury overhead poles, and equipment for construction electricity. The main distribution box, secondary distribution box, and branches adopt a three-phase five-wire system, and the lighting power is a single-phase three-wire system. In addition to the working neutral line, a repeated grounding wire is added. All distribution boxes use standard meter boxes. 2. Construction machinery preparation: Implement according to the construction machinery demand plan, detailed appendix: "Main Construction Machinery List" 3. Building material preparation: 3.1. Provide samples to the owner according to the drawing design requirements.

Procurement can only be carried out after confirmation by the designer; 3.2. Most of the materials used in this project are purchased from our company's stable suppliers or from the origin specified by the owner. A detailed material procurement plan will be developed for all materials before entering the site. 4. Preparation of labor organization plan 4.1. Allocate enough management personnel according to the established on-site management organization structure, and formulate a management system at the same time. 4.2. Construction personnel entering the site must undergo on-site education, including learning about the management systems of our company and the project department, safety knowledge education, and basic construction regulations. 5. Technical preparation 5.1. Be familiar with and jointly review construction drawings, actively contact the design institute, and strive to solve problems in the drawings before construction; 5.2. Prepare and approve the construction organization design and construction drawing budget to prepare for the start of the project; 5.3. Propose machinery, component processing, materials and outsourced processing plans to ensure the progress of the construction period; 5.4. Draw construction drawings according to design requirements and owner needs; 5.5. Organize and implement the labor plan proposed based on the budget to ensure Construction requirements. 4. Construction methods of main divisions and projects 1. Engineering measurement 1.1. In order to ensure that the plane position and geometric dimensions of this project comply with the design requirements of the drawings and meet excellent standards. The requirements for plane and elevation control are as follows: the deputy project manager is responsible for transmitting plane coordinates and elevation, the project constructor is responsible for plane positioning and setting out the construction site and BM point elevation measurement, and the company's technical quality department is responsible for the design control acceptance of plane coordinates and elevation; 1.2. The main measuring instruments configured in this project: see the attached table; 1.3. Axis control: According to the coordinate control points provided by the builder, and the coordinates on the grid designed according to the drawings, two main control lines, vertical and horizontal, are measured and set within the construction area. , set up control piles and use concrete to protect and position them. Then use theodolite to measure the entire square grid according to the control piles; 1.4. Put out the gray line: According to the design and construction master plan, use lime powder to spread the square grid in the construction area with a square grid of 10M*10M to determine the construction work surface. 1.5. BM point elevation measurement and design: According to the elevation control points provided by the builder, use a level to measure the elevation, and mark the elevation measurement and design of each corner point on the grid on the drawn survey and design map to calculate the earthworks. Quantity; 1.6. Earthwork elevation control: Calculate the excavation depth based on the design elevation and measured elevation, and use a level and ruler to control the excavation depth; 2. Central square: It is a garden-shaped stepped hard pavement, separated by green spaces. . According to the requirements of the drawing design institute, the green space separation line was measured and the reinforced concrete retaining wall was poured according to the designed elevation formwork. Then, the step base layer was constructed while backfilling soil to ensure the construction period and the protection of the finished product. 3. Entrance Square: Located on the east and west sides of the Teacher-Student Bridge, the ground is hard paved, with 8 tree pools on each side, made of 300*100*150 granite, and there are nostalgic landscapes (old locust trees, wall clocks, etc.) on the west side. Stone). On the north side, there are school mottos, lying stone sculptures, and raised green space. 4. Campus Square: Located at the entrance of the South Gate, on the south side of the Teacher-Student Bridge, there are hard parquet paving, curbs and stone sculptures that make up this part of the attraction. Considering that the stone carving process is relatively complex, it is planned to use outsourced processing. 5. The Zijin Park, main axis roads, pools, and circular walkways are all paved with hard pavement. The paving steps on the development land are made of concrete slabs, and the paving steps in the living area are made of crushed granite. 6. Hard paving process: Clean the ground - spring center line - place standard blocks - trial assembly - paving - maintenance - caulking - cleaning 6.1 Clean the floor scum; 6.2 Find the construction surface At the center of the surrounding area, pop up the center line, and hang out the ground elevation line from the standard elevation line; 6.3 The surface of the granite veneer panel must not have defects such as hidden damage, weathering, etc., and must not be packaged with materials that are easy to fade; 6.4 The surface of the prefabricated artificial stone panel should be smooth , the geometric dimensions are accurate, the surface stones are uniform, clean, and consistent in color; 6.5 Place the standard blocks and correct them with a level and square; 6.6 Pattern mosaics and stones with clear textures should be tried together, and formal collage can be done only after satisfaction; 6.7 General The ground should be paved from the middle to the surroundings, and the steps are generally paved from bottom to top; 6.8 Before formal paving, brush the base layer with plain cement slurry and pave it as you brush; 6.9 Use 1:3~1:4 dry cement mortar to level it. Wet all the stones with water and place them dry in the shade; 6.10 Apply cement slurry on the back of the stone. When placing, the four corners must be dropped at the same time. Use a rubber hammer to hit it flat, and the gaps should be straight and less than 1MM; 6.11 Install smooth and matte veneer panels outdoors. The joints can be dry-joined or hard plastic strips can be placed in the horizontal joints. When placing hard plastic strips, the reserved part should be pressed out. After the mortar hardens, the hard plastic strips should be removed and the joints should be made with fine cement mortar.

Dry joints should be filled with a jointing agent of the same color as the decorative panel; 6.12 Cement mortar should be used for joints and joints on rough ground surfaces, pitted surfaces, striped surfaces, and natural surfaces. The depth of the joints should meet the design requirements; 6.13 Before the construction of pavement fragmented stones, a trial assembly should be carried out, with the pattern first and then other parts. The joints should be coordinated and there should be no open seams, and the seam width should be 5~20MM; 6.14 The variety and mixing ratio of the rubber used during construction should meet the design requirements and have a product certificate; 6.15 The paved floor should be completed within 2 to 3 days It is prohibited to use plain cement or caulking agent, and the surface should be clean. Glossy and mirrored veneer panels can be waxed and polished after cleaning and drying; 6.16 After the entire batch of stones arrives, you need to select stones with different colors, diagonals, sizes, and dimensions, and arrange them uniformly before they can be officially paved; 6.17 The mixed mortar should be pure water that does not contain harmful substances. 7. Fisherman’s Wharf: Located to the north of Chengnan Avenue and east of the parking lot, the base layer is 60-thick gravel cushion, 60-thick C10 concrete, 40-50 thick 1:2 cement mortar, and the surface layer is pebble pavement. , bluestone plank strip separation. Natural stones and wooden piles are arranged on the waterfront as barriers to ensure safety. 8. Teacher-student bridge: There are three bridges in total, with the same structure and appearance. The foundation and bridge deck structure is a single-layer three-span reinforced concrete frame structure. 200*200 iron plates (8 thick) are embedded at the top of both sides of the column for welding [30a channel steel]. The bridge deck is a 50 thick meranti panel, installed on both sides. For wooden handrails, ф50 galvanized steel columns are fixed on the channel steel with galvanized bolts, and 40*4 galvanized flat iron is welded to the upper part to install and fix the wooden handrails. The bridge deck handrails are steel-wood handrails, with eucalyptus wood handrails on the top and bottom, separated by ф20 galvanized steel wire and ф40 galvanized threaded pipes in the middle. When pouring concrete columns, strictly control the column elevation. Reserve 5 centimeters according to the design elevation and use fine stone concrete of the same grade for leveling. The embedded steel plates on the sides of the columns are fixed on the side formwork in advance with leveling elastic lines. All meranti wood must be treated with anti-corrosion treatment, and steel components must be galvanized and treated with anti-corrosion treatment. 9. Wharf landscape platform: Make 180*180 solid wood railings on 300*300 concrete columns, with [12 channel steel as the upper layer, 100*200 hardwood as the corrugated wood, 150*750*50 solid wood flooring as the upper layer, and 180 as the wooden railing columns. *180 solid wood, railings are 200*60, 40*100 hardwood, connected with tenons. 10. Garden Road 10.1. When backfilling the entire earthwork in the site, the position of the garden road should be laid out with gray lines. If the soil is softer, it should be backfilled with good soil. The earthwork backfill in the garden road must be backfilled in layers and rolled with a road roller. Press tightly to prevent sinking. 10.2. Use manual labor and an excavator to sort out the prototype of the garden road according to the contours designed in the drawings, and use a road roller to roll it to the base elevation. (Manual coordination for smoothing) 11. Water supply and drainage projects: 11.1. Confirm and purchase materials according to design regulations; 11.2. All pipes and fittings must have factory certificates and licenses, and can be used only after passing the retest; 11.3. According to The design drawings use manual excavation of the trench, and no over-excavation is allowed, and no backfilling of earthwork is allowed in the over-excavated part. The bottom of the tank is not allowed to be soaked by water; 11.4. The pipe base materials are required to be selected according to the design requirements, and concrete buttresses should be installed at the pipe interfaces; 11.5. Before pipeline construction, the outlet elevation should be checked and construction can only be carried out after confirmation; 11.6. Sewage pipes and Drainage pipes should be subjected to a closed water test, and water supply and sprinkler irrigation systems should be subjected to a 1Mpa hydraulic pressure test. The trench earthwork can be backfilled only after passing the test; 6.7. Trench excavation, pipeline installation, closed water test, hydraulic pressure test, trench Backfilling, etc. should be completed in a timely manner and the covert acceptance of document visas should be done in a timely manner. 12. Electrical lighting project 12.1. The quality and model of electrical lamps must comply with the design requirements of the drawings, and the quality of the pipelines must comply with the requirements of the electrical installation construction specifications. Electric wires and wiring pipes must be tested and qualified before they can be used in this project; 12.2. The embedding of wiring pipes must be closely coordinated with the civil construction. Pipelines passing through the concrete must be monitored by special personnel during the concrete pouring to prevent them from being crushed or the joints from being squeezed out during the pouring. The slurry will cause damage to the pipeline; 12.3. The installation position of the lamps should be consistent with the position in the design drawing. The surroundings of the hidden floor lamps are closely connected to the ground and slightly higher than the road surface. The center error of the lamps set on the first line should not be greater than 3MM. ; 12.4. After the installation of lamps and lanterns is completed, a lighting test should be carried out to check the power supply performance and the sensitivity of the electric shock system. The visual and sensory quality of the lamps and lanterns and electrical appliances should be inspected and must meet the requirements of the acceptance specifications for electrical installation projects.

5. Technical quality assurance measures 1. Target management: Our company will implement the quality assurance system, strictly follow the dynamic management of each process operation, and control the quality of the project. On the basis of strict self-inspection, mutual inspection, and handover inspection, we will be open-minded and Listen to the opinions of owners, design, supervision and other departments, and accept their quality supervision of various constructions to ensure excellent project quality. 2. Coordinate and elevation control measures 2.1. Before the start of construction, use a total station to measure the original coordinate points provided by the builder and transfer them to the southern side of the road close to the construction area as the benchmark coordinates and elevation points of the project. 2.2. Engineering survey adopts square grid measurement, and theodolite, level and steel ruler must be calibrated and verified uniformly. 3. Quality control measures for earthworks 3.1. According to the measured elevation of the corner points of the grid and the design elevation, use a colored pen to mark the control area, fill area and balance area on the construction drawings. Strictly control the excavation depth to avoid exceeding the dig. 3.2. The excavated soil must be drained in time to prevent the base soil from being soaked and affecting the bearing capacity. 3.3. The earthwork backfill in areas with structures should be layered and rolled with good soil quality, and backfilled in layers to ensure the bearing capacity of the upper structure. 4. Quality assurance measures for formwork projects 4.1. During the formwork lofting design process, calculations must be made to ensure that it has sufficient strength, stiffness and stability to reliably withstand the construction load. 4.2. All formwork must be enlarged according to the construction requirements, and the formwork construction drawings must be assembled. The formwork must be installed according to the position of the elastic line. 4.3. The formwork must be cleaned after one turnover. Formwork that is severely deformed by oiling is strictly prohibited from use. 4.4. The formwork removal must be carried out as required. If the formwork is removed in advance, the strength data of the test block must be maintained under the same conditions and reported to the supervisor for approval before the formwork can be removed. 5. Quality assurance measures for concrete projects: 5.1. Strictly measure and configure according to the mix ratio notice, and strictly control the water-cement ratio. 5.2. Before pouring concrete, the debris in the formwork should be cleaned, and the formwork should be moistened by watering in advance. During the watering process, pay attention to the position of the formwork bracket, steel bars, embedded parts and reserved holes, and deal with any deformation in a timely manner. 5.3. The concrete construction should be left in accordance with the specifications. The surface should be roughened before pouring, cleaned and then watered and rinsed with cement mortar of the same type and grade for grouting. 5.4. Strengthen the maintenance of concrete, and have a dedicated person water and maintain it for 7 days. 6. Quality assurance measures for paving projects 6.1. Organize material procurement personnel to conduct market research and “compare products”. Strictly control the procurement of materials to ensure low prices and high quality. 6.2. The base layer is required to be flat according to the construction surface. When paving, it is divided into several pieces according to the area. First, pave the corners and center points. Use a level to level the position and then pull the "meter" line for paving to ensure a smooth surface. 6.3. When caulking, use a caulking tool according to the seam width to ensure that the caulking is dense and smooth. 6.4. Check the assembly pattern and color, and perform maintenance after confirming that they are correct. 7. Other quality assurance measures 7.1. Set up professional data clerks, build a project archives system, and archive all technical data in a timely manner. 7.2. Adhere to the handover system of each process, check every process, eliminate hidden dangers, and strictly implement the hidden acceptance system for all hidden projects. Strengthen self-inspection, mutual inspection, and handover inspection of the quality of each branch and project, and conduct quality assessment. 6. Civilized Construction Guarantee Measures 1. Safety Management Objectives Our company will maintain a good construction environment, civilized construction, and safe construction in accordance with the relevant civilized construction requirements of Nanjing City. 2. "Four signs and one picture" at the construction site: project overview sign, safety production placard, safety production discipline sign, and list of main persons in charge of the construction site. General layout of the construction site. 3. On-site appearance management 3.1. Set up cleaners at the construction site to clean up production and domestic waste in a timely manner to keep the construction and living areas clean. 3.2. Implement full-time sanitation management personnel and cleaning personnel, and implement the post responsibility system in front of the door. 3.3. Lay construction access roads according to the designed topography map, set up open drainage ditches on both sides, and keep them open at all times. 4. Material stacking 4.1. On-site turnover materials and equipment must be stacked according to the location shown in the general floor plan, and stacked neatly, with a stacking height of no more than 1.8M. 4.2. Steel bars and formed steel bars must be stacked on overhead facilities 20CM above the ground. The necessary cement hard floor for stacking steel bars is separated by wooden boards or short steel bars, and one end must be neat. 4.3. All incoming materials must be marked with name, variety, specifications and inspection and test status. 4.4. Flammable or explosive items must be stored in categories, designated for safekeeping, and a strict management system must be developed.

7. Measures to ensure production safety 1. Safety measures at construction sites 1.1. Conscientiously implement the party and state’s guidelines and policies on production safety and the company’s production safety management law, requiring front-line construction management and production workers to be familiar with their safety responsibilities and Responsibilities to be borne. 1.2. Establish a production safety guarantee system, strengthen the management of production safety, and set up full-time safety officers to be specifically responsible for production safety. 1.3. Firmly establish the policy of "safety first, prevention first", effectively promote construction safety, educate and arrange, inspect, rectify and evaluate work, achieve "three no harm", maintain safety on duty, who is responsible Construction, who is responsible for safety? 1.4. Adhere to the system of employment with certificates. Special types of work must have certificates. Medium and small machinery must be assigned people and machines. The company must organize training and pass the examination before being allowed to operate. 1.5. Strictly implement the fire permit system, and fireworks are strictly prohibited from oxygen and acetylene bottles. Fires are strictly prohibited in woodworking rooms and flammable and explosive storage areas, and fire-fighting equipment must be provided. 1.6. Earnestly implement the production safety technical disclosure system. Safety disclosure and construction technology disclosure should be carried out simultaneously. Safety disclosure must be combined with specific operations and be targeted. 1.7. Establish a safety supervision system to eliminate hidden dangers of accidents and prevent the occurrence of three violations. The team has the right to refuse orders that violate regulations and has the right to report violations beyond the next level. 2. Measures for safe electricity use at the construction site 2.1. The arrangement of temporary electricity for construction shall be elevated according to the provisions of the general plan. The poles shall be installed with angle iron cross arms on dry garden wood or cement poles and erected with insulators. 2.2. Construction electricity management must be carried out by electricians who have obtained employment certificates. Construction must be carried out in strict accordance with operating procedures. No live work is allowed without special reasons and protective measures. Personal labor protection supplies must be used correctly. 2.3 All mechanical equipment in this project shall adopt grounding protection and on-site repeated grounding protection. 2.4. The distribution box must be a standard box. The hanging height is 1.4M. No objects are allowed to be placed within 1M to the left and right in front of the box. The door lock should be intact and flexible, and repeated protective grounding should be done according to regulations. 2.5. The distance between mobile electrical boxes should not be greater than 30M, so that one machine, one gate and one protection can be achieved. 8. Measures to ensure the construction period 1. Overall plan control: According to the overall construction period plan, prepare the overall construction progress plan, and then arrange it according to the overall progress plan, and allocate sufficient manpower, material resources, and financial resources. Ensure the realization of the master plan. 2. Monthly plan and weekly plan control: According to the overall progress plan, prepare monthly and weekly construction operation plans, and sign small contracts on construction period, quality, and safety for the team to ensure that the construction period proceeds as planned. If the construction period is delayed due to special circumstances, measures must be taken Measures will be taken in subsequent processes. 3. The company goes all out to coordinate internal horizontal cooperation units in a timely manner. In order to ensure the construction needs of the construction site, the supply department meets all construction tasks in the construction plan within a time limit and ensures that the supply of peripheral materials and materials meets the requirements of the construction progress. 4. Strictly control the quality of the project, taking technical solutions as the guide and pre-control as a means to ensure that each sub-item is completed first time and prevent rework from delaying the construction period. 5. For special key processes, grasp the key management points and shorten the construction cycle of each process to the maximum extent. 6. Strengthen the daily repair and maintenance of mechanical equipment to ensure that the mechanical equipment is always in good operating condition, improve the utilization rate of the mechanical equipment, and ensure the smooth progress of the construction. 7. Schedule and coordinate the sources of labor to ensure sufficient labor and ensure the construction schedule. 8. Pay close attention to civilized construction on site and protection of finished products, reduce the workload of repairs, and shorten the completion time as much as possible. 9. Protection measures for rainy season construction Construction in the rainy season is mainly based on prevention. Rainproof measures and enhanced drainage methods are adopted to ensure normal production during the rainy season and are not affected by the seasonal climate. Strengthen rain information feedback and take preventive measures to eliminate problems that have occurred in recent years. Site drainage: The construction site and component production base should be dredged according to the terrain and ground drainage system to ensure smooth water flow and no accumulation of water. 10. Maintenance and after-sales service Our company pursues the tenet that quality is the life of an enterprise. Not only do we strictly control quality during the construction process, but we also take corresponding rigorous measures for after-sales service. 1. The warranty period of the engineering branch projects undertaken is strictly implemented in accordance with relevant national regulations. 2. During the completion acceptance, the company will sign a quality maintenance contract with the owner, clearly stipulating the service content and service period after completion acceptance, and accept the owner supervision. 3. Establish a return visit system. The company will conduct a return visit every three months after the completion of the project. The owner will be asked to fill in the return visit form. The company will effectively handle the owner's suggestions and opinions in the shortest possible time, in order to meet the owner's requirements. 4. Keep a warranty deposit to give the owner the greatest peace of mind within the scope of the contract service. Attachment 1: Overall construction progress schedule.

Appendix 2: General layout plan of construction. Appendix 3: List of main measuring instruments and meters.