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A platform for research: civil engineering, architecture and urbanism
Anti-floating dewatering method in basement construction period
The invention relates to an anti-floating dewatering method during basement construction, which belongs to the technical field of foundation pit construction, and comprises the following operation steps: 1, during basement construction, reserving dewatering wells every 15 meters, adopting a filter layer as a substrate at the bottom of each dewatering well, and inserting a dewatering well pipe into the filter layer; and secondly, foundation pit backfill soil is piled on the outer side of the filtering layer till the upper end face of the dewatering well pipe is flush with the upper end face of the dewatering well pipe. And thirdly, the lower end of the precipitation well pipe is sleeved with a precipitation pipe, a submersible pump is placed in the precipitation pipe, and meanwhile a water suction pipe extending out of the upper portion of the precipitation well pipe is arranged at the upper end of the submersible pump. And 4, continuously pumping water through a submersible pump under the condition that the top plate is not covered with soil and the upper structure is not constructed, so that the water level around the basement is kept at a low position and even is flush with the base. And fifthly, after the top plate is covered with soil, the submersible pump stops pumping water, soil is poured into the dewatering well pipe in the dewatering well compactly, and construction is completed. Water pressure of a base is low, a basement cannot float upwards, and structural safety is guaranteed.
本发明涉及一种地下室施工期间抗浮的降水方法，所属基坑施工技术领域，包括如下操作步骤：第一步：在地下室施工期间，每间隔15米预留降水井，降水井底部采用过滤层做基底，接着在过滤层上插入降水井管。第二步：在过滤层外侧采用基坑回填土堆砌至降水井管上端面齐平。第三步：在降水井管下端套接沉淀管，所述的沉淀管内放置潜水泵，同时潜水泵上端设有延伸出降水井管上方的吸水管。第四步：在顶板未覆土和上部结构未施工的情况下，通过潜水泵连续抽水，使地下室周边的水位保持在低位，甚至与基地平。第五步：当顶板覆土后潜水泵停止抽水，降水井内的降水井管灌土密实，完成施工。实现基地水压较低，无法使地下室上浮，确保结构安全。
Anti-floating dewatering method in basement construction period
The invention relates to an anti-floating dewatering method during basement construction, which belongs to the technical field of foundation pit construction, and comprises the following operation steps: 1, during basement construction, reserving dewatering wells every 15 meters, adopting a filter layer as a substrate at the bottom of each dewatering well, and inserting a dewatering well pipe into the filter layer; and secondly, foundation pit backfill soil is piled on the outer side of the filtering layer till the upper end face of the dewatering well pipe is flush with the upper end face of the dewatering well pipe. And thirdly, the lower end of the precipitation well pipe is sleeved with a precipitation pipe, a submersible pump is placed in the precipitation pipe, and meanwhile a water suction pipe extending out of the upper portion of the precipitation well pipe is arranged at the upper end of the submersible pump. And 4, continuously pumping water through a submersible pump under the condition that the top plate is not covered with soil and the upper structure is not constructed, so that the water level around the basement is kept at a low position and even is flush with the base. And fifthly, after the top plate is covered with soil, the submersible pump stops pumping water, soil is poured into the dewatering well pipe in the dewatering well compactly, and construction is completed. Water pressure of a base is low, a basement cannot float upwards, and structural safety is guaranteed.
本发明涉及一种地下室施工期间抗浮的降水方法，所属基坑施工技术领域，包括如下操作步骤：第一步：在地下室施工期间，每间隔15米预留降水井，降水井底部采用过滤层做基底，接着在过滤层上插入降水井管。第二步：在过滤层外侧采用基坑回填土堆砌至降水井管上端面齐平。第三步：在降水井管下端套接沉淀管，所述的沉淀管内放置潜水泵，同时潜水泵上端设有延伸出降水井管上方的吸水管。第四步：在顶板未覆土和上部结构未施工的情况下，通过潜水泵连续抽水，使地下室周边的水位保持在低位，甚至与基地平。第五步：当顶板覆土后潜水泵停止抽水，降水井内的降水井管灌土密实，完成施工。实现基地水压较低，无法使地下室上浮，确保结构安全。
Anti-floating dewatering method in basement construction period
地下室施工期间抗浮的降水方法
ZHANG ZEFENG (author) / WANG RONGJIAN (author) / RUAN KEQIAN (author)
2023-12-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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