Construction organization design of deep foundation pit earthwork excavation
This project is a sewage treatment project of Zoucheng XXXXXX Co., Ltd., located in the western development zone of Zoucheng City. The terrain of the site is relatively flat. The maximum ground elevation is 65.38m, the minimum is 64.67m, and the relative ground elevation difference is 0.71m. The geomorphic type of the site is river alluvial plain. According to the geological data, there are two underground concrete water supply and drainage pipelines around the foundation pit, which are inconvenient for the soil borrowing construction. There is a Ф 1m municipal sewage concrete pipeline in the south, and a Ф 0.6m water supply concrete pipeline to the thermal power plant in the west. The foundation soil is divided into 8 layers from top to bottom, and the groundwater level varies with the seasons. It is in rainy season and is relatively high in the near future. The tank body specification (Ф m × Hm) of this project is 16m × 12.5m × 2 sets; The outer diameter of the bottom plate is 19.0m, the structural form is arc shear wall, the foundation pit is in the shape of "∞", the buried depth is 6.485 meters, and the amount of earth excavation is large. In order to prevent hidden dangers and reduce construction difficulties, the following scheme is specially formulated with good results.
