The hottest measures to prevent collapse and tower

Measures to prevent collapse and tower collapse

1 dig the foundation near the rod root. When the foundation pit exceeds the buried depth of the rod root, take measures to prevent foundation pit collapse and prevent the rod collapse accident caused by rod root sinking caused by foundation pit collapse

2 before the operation of foundation pit (groove), slope, foundation pile, formwork, scaffold and temporary building, the construction scheme and safety technical measures to prevent collapse accidents shall be prepared according to the requirements of the design unit and the geological conditions, construction technology, operating conditions and surrounding environment. The operation can only be carried out after being checked and signed by the technical director of the unit and relevant departments. About 20% of box corrugated paper flows abroad with the export

3 before earthwork excavation, confirm the buried depth, location and protection requirements of underground pipelines, and take protective measures. During earthwork excavation, the settlement and displacement of adjacent buildings (structures) and roads shall be observed

4 for the construction of deep foundation pit (groove), special construction plans must be prepared, and special construction plans should be prepared for high cut slope, pile foundation and super high, overweight, long-span formwork support system, and experts should be organized to review

deep foundation pit (groove) refers to the operation pit (groove) in which the sensor can be replaced only after the foundation with a depth of more than 5m is excavated, or the foundation pit (groove) with a depth of less than 5m but complex geological conditions and surrounding environment. High cut slope refers to the slope with rock slope more than 30m or soil slope more than 15m. Super high, overweight and long-span formwork support system refers to the formwork support system with a height of more than 8m, a span of more than 18m, a total construction load of more than 10kn/m2, or a concentrated line load of more than 15kn/m2

5 plan the temporary drainage system in the construction area, and the temporary drainage shall not damage the foundation of adjacent buildings (structures) and the slope of excavation and filling earth. In case of surface water confluence, drainage or underground water pipe leakage around the site, drainage shall be organized and protective measures shall be taken for the foundation pit. When excavating foundation pits (grooves), slopes and foundation piles lower than the groundwater level, dewatering measures should be reasonably selected to reduce the groundwater level

6 when the pit (groove) wall support is set for the foundation pit (groove) and slope, the support shall be designed according to the excavation depth, soil conditions, groundwater level, construction method and adjacent buildings (structures). When removing the support, it shall be removed layer by layer from bottom to top according to the backfilling sequence of foundation pit (groove), and it shall be filled as soon as it is removed to prevent slope collapse or damage to adjacent buildings (structures), and reinforcement measures shall be taken when necessary

7 all kinds of building materials shall be stacked at the specified distance near the foundation pit (groove), slope and foundation pile hole. The distance between various construction machinery and the edge of foundation pit (groove), slope and foundation pile hole shall be determined according to the weight of equipment, the support of foundation pit (groove), slope and foundation pile, and the soil quality, and shall not be less than 1.5m

8 during the operation of foundation pit (groove), the climbing facilities and special access shall be determined, and the operators shall not climb the formwork, scaffold and other temporary facilities

9 when excavating Earthwork by machinery, operators shall not enter the scope of mechanical operation for cleaning or slope operation