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按照我国制定的相关规定和文件,深基坑定义为开挖深度超过5m的基坑的土方开挖、支护、降水工程,另外还包括,虽然开挖深度没有超过5m,但是地质条件、周围环境和地下管线复杂,或者影响毗邻建筑物安全的基坑的土方的开挖、支护和降水工程。地质勘查对于深基坑是相当重要的,而且针对不同的施工情况,选取适当的地质勘查方法才能经济有效地确保勘查的准确性和合理性。
According to the relevant regulations and documents formulated by our country, deep foundation pit is defined as earthwork excavation, support and precipitation engineering of foundation pit with excavation depth more than 5m. In addition, although excavation depth does not exceed 5m, geological conditions, Complex environment or underground pipelines, or earthwork excavation, support and precipitation projects that affect the foundation pit of safety of adjacent buildings. Geological exploration is very important for deep foundation pit, and for different construction conditions, select the appropriate geological exploration methods in order to ensure the accuracy and rationality of the exploration cost-effectively.