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Precipitation structure and precipitation construction method for deep foundation pit in near-water zone
According to the near-water zone deep foundation pit dewatering structure and the dewatering construction method, an underground diaphragm wall is arranged on the periphery of a deep foundation pit, the lower portion of the underground diaphragm wall is connected with a waterproof curtain of a jet grouting pile structure, and a plurality of dewatering wells are arranged on the inner side of the underground diaphragm wall; when the deep foundation pit dewatering structure is applied to deep foundation pit dewatering construction of an underground phreatic water layer or a confined water layer in a near-water zone with too large depth, the depth of the diaphragm wall is greatly shortened under the condition that the total waterproof curtain depth is guaranteed, so that the engineering cost of the diaphragm wall is greatly reduced; after the deep foundation pit is constructed, the diaphragm wall can be continuously used as a part of a deep foundation pit structure engineering structure, and the engineering structure around the deep foundation pit does not need to be constructed, so that the total engineering period is shortened; in addition, the jet grouting piles on the lower portion of the underground diaphragm wall further reinforce the foundation strength of the underground diaphragm wall, and the stability of the underground diaphragm wall structure is greatly improved.
一种近水地带深基坑降水结构及降水施工方法，深基坑周边设置有地连墙，地连墙下部连接设置旋喷桩结构的止水帷幕，地连墙内侧设置有若干降水井；该深基坑降水结构在应用于近水地带地下潜水层或者承压水层深度过大的深基坑降水施工时，在保证总的止水帷幕深度的情况下，大幅缩短了地连墙的深度，从而极大降低了地连墙的工程成本；深基坑施工后，地连墙可作为深基坑构筑物工程结构的一部分继续使用，无需再施工深基坑周边的工程结构，从而缩短了总的工程周期；另外地连墙下部的旋喷桩还补强了地连墙的基础强度，极大提高了地连墙结构的稳定性。
Precipitation structure and precipitation construction method for deep foundation pit in near-water zone
According to the near-water zone deep foundation pit dewatering structure and the dewatering construction method, an underground diaphragm wall is arranged on the periphery of a deep foundation pit, the lower portion of the underground diaphragm wall is connected with a waterproof curtain of a jet grouting pile structure, and a plurality of dewatering wells are arranged on the inner side of the underground diaphragm wall; when the deep foundation pit dewatering structure is applied to deep foundation pit dewatering construction of an underground phreatic water layer or a confined water layer in a near-water zone with too large depth, the depth of the diaphragm wall is greatly shortened under the condition that the total waterproof curtain depth is guaranteed, so that the engineering cost of the diaphragm wall is greatly reduced; after the deep foundation pit is constructed, the diaphragm wall can be continuously used as a part of a deep foundation pit structure engineering structure, and the engineering structure around the deep foundation pit does not need to be constructed, so that the total engineering period is shortened; in addition, the jet grouting piles on the lower portion of the underground diaphragm wall further reinforce the foundation strength of the underground diaphragm wall, and the stability of the underground diaphragm wall structure is greatly improved.
一种近水地带深基坑降水结构及降水施工方法，深基坑周边设置有地连墙，地连墙下部连接设置旋喷桩结构的止水帷幕，地连墙内侧设置有若干降水井；该深基坑降水结构在应用于近水地带地下潜水层或者承压水层深度过大的深基坑降水施工时，在保证总的止水帷幕深度的情况下，大幅缩短了地连墙的深度，从而极大降低了地连墙的工程成本；深基坑施工后，地连墙可作为深基坑构筑物工程结构的一部分继续使用，无需再施工深基坑周边的工程结构，从而缩短了总的工程周期；另外地连墙下部的旋喷桩还补强了地连墙的基础强度，极大提高了地连墙结构的稳定性。
Precipitation structure and precipitation construction method for deep foundation pit in near-water zone
一种近水地带深基坑降水结构及降水施工方法
ZHAO JINXING (author) / ZHANG KUN (author) / ZHANG TIANBAI (author) / LIU BAOLIANG (author) / YUAN QUAN (author) / YAN MIAOJUN (author) / WANG KANGKANG (author) / FENG LINFENG (author) / WANG XIAORUI (author) / XIAO RONGBANG (author)
2024-08-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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