On site supervision scheme of a residential building in Shanghai
2 Structure abstract 2.1 The project is a composite pile foundation and a reinforced concrete spread foundation. The design parameters of the project piles are: the section size is 200 × 200 × (16000+16200) mm, the total number is 549, and the design vertical bearing capacity of a single pile is ×× kN. The indoor floor ± 0.00 is 4.80 m, and the pile top elevation is 3.35 m. The bottom elevation of expansion foundation is 3.30m, the width of transverse wall foundation is generally 1600mm, and the width of longitudinal wall foundation is generally 1350mm. Prefabrication of precast reinforced concrete square piles at the construction site...... 1. Positioning and setting out and settlement observation can adopt two methods: ⑴ joint participation of supervisors; ⑵ After the construction unit completes the work, the supervision organization shall retest it. The director praises the former method; 2. Whether the construction is carried out in accordance with the technical standards, specifications, procedures and approved design documents and construction organization design; 3. Check whether the materials, purchased accessories and equipment used are qualified; 4. Check whether relevant on-site management personnel and quality inspection personnel of the construction unit are on duty; 5. Whether the technical level and operating conditions of the construction operators meet the requirements of the construction process, and whether the special operators work with certificates; 6. Whether the construction environment has adverse impact on the project quality; 7. Whether there are quality and safety hazards during construction. For major quality problems or quality hidden dangers during construction, the site supervision personnel shall take photos, video cameras and other means to record them Site supervision work plan 1. Joint review of drawings, design changes and negotiation records shall be signed and sealed by all parties involved, and the procedures shall be complete. Changes involving structural safety and use functions shall be approved by the drawing review company before they can be considered to meet the specified requirements to guide construction. For design changes proposed by the owner, the owner must also be urged to handle the design visa procedures. 2. The signing and sealing procedures of all parties involved in the project positioning survey and setting out records shall be complete to meet the requirements. 3. The seals of the factory certificate of raw materials and the entry inspection (test) report should be clear. The photocopies should be marked with the original storage unit, and the photocopies should be signed by the handler to make them traceable; All materials used in concealed works must be certified before concealment, otherwise concealment is not allowed.
