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Key points for inspection and acceptance of various civil engineering projects. I. Preparations for project acceptance: 1. Complete the final-stage works. To do this, it is necessary to identify all items related to the final-stage works. Through a pre-completion inspection, a thorough check should be conducted. Each item must be compared against the design drawings and contract requirements in order to identify any missing items or areas requiring repair. An operational plan should then be formulated, with various tasks carried out in an overlapping manner. 2. Prepare acceptance documents. The documents and materials required for project completion acceptance serve as an important basis for such acceptance; they should be collected and stored thoroughly from the start of construction, and cataloged and filed at the time of completion acceptance. 3. Conducting a pre-inspection as part of the pre-acceptance and final acceptance processes is essential for initially assessing the quality of the project, preventing delays in the completion process, and ensuring that the project can be put into use smoothly. Through pre-acceptance, residual issues can be identified in a timely manner, allowing for corrective and supplementary repairs to be carried out in advance. Key points for the step-by-step acceptance of construction projects: 1. Inspection batches and sub-projects form the basis of construction project quality. Before acceptance, the project team must first fill out the \"Quality Acceptance Records for Inspection Batches and Sub-Projects\"; the project’s quality inspection officers and technical supervisors are required to sign in the relevant sections of these records. thereafter, the supervision engineer oversees the acceptance process in strict accordance with established procedures. 2. For sub-projects (sub-sub-projects), upon completion of self-inspection, the project’s chief supervision engineer (the person in charge of the project on the part of the construction unit) shall organize the project manager of the construction unit, as well as the technical and quality supervisors and relevant personnel to carry out the acceptance process. For foundation and structural sub-projects, the participation of a quality inspection agency is required for the acceptance. 3. The project manager organizes a quality mutual inspection among the construction teams every two weeks, and conducts quality reviews. 4. The Technical Quality Department of the branch company conducts unscheduled spot checks on each project. The results of these checks are ranked and publicly posted. In case any issues are identified, a written directive ordering corrective actions within a specified timeframe is issued. The project manager is responsible for submitting a written report on the implementation of the corrections to the Technical Quality Department within the stipulated period. The company then conducts spot checks on the corrective measures taken, and evaluates performance based on the results of such checks. 5. As required by the quality supervision department, key parts must be inspected and verified by the quality supervision station. Such as foundation inspection, foundation rebar, foundation sub-division, main structure sub-division, roof, etc. 6. After the project is completed, but prior to the initial inspection upon completion, the construction unit shall organize its own staff to carry out self-inspection and acceptance of the project. Once it meets the relevant regulations of **the province and city, as well as the requirements specified in the design documents and contract terms, it shall promptly submit a \"Project Completion Report\" to the on-site supervisor and the project owner, and apply for the formal inspection and acceptance of the project. 7. After receiving the completion report and conducting self-inspections and preliminary inspections, the construction unit shall, for projects that meet the requirements for completion acceptance, form an acceptance team composed of professionals from design, construction, supervision units and other relevant parties (the project leader of the construction unit, the project manager of the construction company, the chief supervision engineer of the supervision unit, and the project leader of the design unit should be members of this acceptance team), and notify the quality supervision station to carry out the formal completion acceptance of the project. Specific contents of the three-phase project acceptance: 1. Foundation works (1) Before carrying out ground reinforcement measures, and after the excavation of foundation pits and trenches is completed and leveled, it is necessary to inspect and verify the soil quality and bearing capacity thereof. Relevant responsible personnel and technical staff from surveying, design, quality supervision, supervision, construction, and the construction party shall be present to determine whether the soil quality and bearing capacity meet the requirements, based on the structural drawings at the construction drawing phase as specified in the foundation plan and general structural description, as well as the geotechnical investigation report prepared during the detailed survey phase. (2) The items subject to acceptance in foundation and base works include unsupported earthwork, supported earthwork, foundation and base treatment, pile foundations, underground waterproofing, concrete foundations, masonry foundations, reinforced steel (tube) concrete, steel structures, etc. Before the foundation is poured, a quality supervision agency, as well as the design and construction units, should be invited to conduct on-site inspections and approvals. Inspect and accept the construction quality after the foundation reinforcement treatment. (3) Acceptance of the foundation works. Before backfilling the foundation trench, inspect and approve the quality, structure, and dimensional tolerances of the foundation work. (4) Records of the pile foundation axis, setting out and verification of sample piles should be prepared, along with construction records for driving (pressing) piles and records of pile formation for cast-in-place piles. (5) Splicing of precast piles, drilling and hole cleaning of cast-in-place piles, fabrication, lowering of reinforcement cages, and concrete pouring. (6) Records of acceptance for pile position axis deviation and elevation (if the elevation of the pile top is the same as that of the construction site, it should be carried out after the completion of pile foundation construction). 2. Main structure: (1) During the acceptance of works such as rebar, it is necessary to ensure that, prior to pouring concrete and before applying the roof protective layer, backfilling the basement foundation trenches, or sealing the joints in the exterior wall panels, the quantity, dimensional tolerances, structural requirements, and thickness of the protective layer for the rebar framework, pipelines, components, and embedded parts are all checked and approved. (2) Before the block masonry work begins, the structural works must have been approved by the relevant authorities. Before beginning the actual construction, a model unit should first be built on a standard floor, including structural columns, window sill caps, lintels, etc., all of which must be constructed in accordance with the design requirements and relevant specifications ； Construction can proceed only after it has been approved by the supervision unit; at the same time, it is necessary to ensure that the construction workers have received proper technical instructions, with clear guidelines regarding the construction procedures and quality acceptance standards. (3) The main aspects of acceptance include the following: 1) Axis and setting out (for each floor) ； 2) Reinforcement for columns, beams, stairs, and slabs (including quantity, specifications, type, lap length, welding condition, cover thickness, stirrup spacing, embedded parts, etc., once per floor), inspection and on-site supervision records ； 3) Reinforcement in cantilevered areas such as canopies, balconies, and air-conditioning units (once per floor), inspection and on-site supervision records ； 4) Concrete (including surface quality, strength grade, quantity per layer), inspection and on-site supervision records ； 5) Wall masonry (including the quantity, specifications, and placement of reinforcement bars connecting columns to walls), mortar mix design sheet ； 6) Reinforcement for the roof water tank (including quantity, specifications, type, and lap length); records of inspections and on-site supervision ； 7) Reinforcement for the parapet cap (including quantity and specifications). 3. Roofing work: (1) The height of the waterproofing cover should be no less than 25 cm; an additional waterproofing layer should be applied at the base of pipes. Metal clamps should be used for sealing the ends of the waterproofing material, with sealant applied to the upper edges. (2) The height of pipes on accessible rooftops shall be no less than 1.8 m. The smoke and wind hood cover is sloped at 2%. (3) The main aspects of acceptance include the following points: 1) The substrate for membrane and coating waterproofing layers ； 2) Areas requiring sealing and waterproofing treatment ； 3) Detailed construction methods for gutters, eaves drains, flashing, and expansion joints ； 4) Overlap width of rolled or coated waterproof layers and additional layers ； 5) A separation layer between the rigid protective layer and the membrane or coating waterproofing layer. 4. Decoration and finishing works: (1) Inspection of wall cracks and the appearance of floor slabs, with a focus on checking whether there are any stress-induced cracks in load-bearing walls and floor slabs ； Is there a significant color difference on the wall surface? (2) The quality of the surface of doors and windows directly affects the decorative appearance of the entire wall after installation. The visual inspection of doors and windows includes checking for cracks on the surface, any deformation, and the condition of the window seals. (3) For the visual inspection of the ground surface, first, from a distance of 2 meters, visually check whether the color of the surface is uniform, and whether there are any color differences or scratches. Examine the brick surface for any abnormal contaminants such as cement or paint. Then, use sight and touch to check for cracks, fissures, or damage on the surface. (4) The main aspects of acceptance include the following points: 1) Plastering work: reinforcement measures when the plaster thickness is 35 mm or more, and reinforcement measures at the joints between different material substrates. 2) Door and window works: embedded parts and anchors, corrosion protection for concealed areas, and filling treatments. 3) Ceiling installation: fire and corrosion protection for wooden joists, embedded components or tie rods, installation of hangers, installation of joists, and application of filling materials. 4) Light partition wall project: fire and corrosion protection for wooden studs, embedded components or tie rods, installation of studs, and application of filling materials. 5) Cladding (brick) work: embedded parts (post-installed embedded parts), connection joints, waterproof layer. 6) Curtain wall engineering: embedded parts (or post-embedded parts), connection joints of components, construction joints at deformation joints and wall corners, curtain wall lightning protection systems ； Fireproof construction of curtain walls. 4 Essential Basics of Project Acceptance 1. Unit project: A unit project refers to a building or structure that has an independent functional use. For example, if a county hospital builds three buildings at once – an outpatient complex (6 floors), a inpatient ward (7 floors), and an administrative office building (3 floors) – then each of these individual buildings is considered a separate unit project. 2. Sub-projects can be determined based on their professional nature or the location within the project. When a sub-project is large or complex, it can also be divided into several sub-sub-projects according to the characteristics of construction, the types of materials used, the sequence of construction, as well as the professional systems and categories involved. For example, the outpatient comprehensive building can be divided into sub-projects such as foundation and base works, main structure works, building decoration works, building roof works, building energy efficiency works, and so on. For example: the main structure sub-projects of the outpatient comprehensive building (individual project) are divided into concrete structure sub-projects and masonry structure sub-projects. For example, the building decoration and finishing sub-project of the inpatient department (a separate construction unit) is divided into sub-projects such as building flooring, plastering, coating, and details. 3. Sub-projects can be classified according to categories such as main types of work, materials, construction techniques, and equipment. For example, within the sub-project of the main structure, the concrete structure sub-sub-project is divided into 4 sub-projects: formwork sub-project, reinforcement sub-project, concrete sub-project, and cast-in-place structure sub-project. For example, within the sub-project of building decoration and finishing, the plastering sub-project is divided into: general plastering tasks and decorative plastering tasks. 4. Inspection lots: Inspection lots can be divided based on the needs of construction, quality control, and professional inspection, using methods such as volume of work, floor level, or construction joints. For example, within the sub-project of concrete structures in the main structural sub-project, the sub-item of steel bars is divided into 3 inspection lots: steel bar fabrication, steel bar installation, and steel bar binding.