A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Full-section pipe erecting forced drainage diversion method for pipe gallery foundation pit of underneath crossing tidal river reach
The invention relates to an underneath crossing tidal river reach pipe gallery foundation pit full-section pipe erecting forced drainage diversion method which comprises the following steps: step 1, performing full-section cofferdam construction on the upstream and downstream of a river channel at the construction position of a pipe gallery foundation pit respectively, and arranging a plurality of diversion steel pipes communicating the upstream and downstream of the river channel between an upstream cofferdam and a downstream cofferdam; secondly, a pipe gallery foundation pit support structure is constructed, wherein the pipe gallery foundation pit support structure comprises waterproof curtains located on the upstream side and the downstream side of a pipe gallery foundation pit correspondingly; thirdly, pipe gallery foundation pit earth excavation and pipe gallery foundation pit inner structure construction are conducted; and fourthly, after structural construction in the pipe gallery foundation pit is completed, foundation pit backfilling is conducted, and the cofferdam and the flow guide steel pipes are dismantled. According to the underneath crossing tidal river reach pipe gallery foundation pit full-section pipe erecting forced drainage and diversion method, the river channel drainage and diversion efficiency can be improved, the pipe gallery construction progress can be accelerated, the influence of the tidal effect of the river channel entering the sea on the foundation pit can be reduced, a dry operation environment is provided for the interior of the foundation pit, and the foundation pit construction safety is improved.
本发明涉及一种下穿感潮河段管廊基坑全断面架管强排导流方法，其包括如下步骤：步骤一、在管廊基坑施工位置的河道上游和下游分别进行全断面围堰施工，上游围堰和下游围堰之间设置多个连通河道上下游的导流钢管；步骤二、管廊基坑围护结构施工，管廊基坑围护结构包括分别位于管廊基坑上下游两侧的止水帷幕；步骤三、管廊基坑土方开挖及管廊基坑内结构施工；步骤四、管廊基坑内结构施工完成后，进行基坑回填，并拆除围堰和导流钢管。本发明提供的下穿感潮河段管廊基坑全断面架管强排导流方法能够提高河道导排效率，加快管廊施工进度，且能够减少基坑受入海河道的潮汐作用的影响，为基坑内部提供干燥作业环境，提高基坑施工的安全性。
Full-section pipe erecting forced drainage diversion method for pipe gallery foundation pit of underneath crossing tidal river reach
The invention relates to an underneath crossing tidal river reach pipe gallery foundation pit full-section pipe erecting forced drainage diversion method which comprises the following steps: step 1, performing full-section cofferdam construction on the upstream and downstream of a river channel at the construction position of a pipe gallery foundation pit respectively, and arranging a plurality of diversion steel pipes communicating the upstream and downstream of the river channel between an upstream cofferdam and a downstream cofferdam; secondly, a pipe gallery foundation pit support structure is constructed, wherein the pipe gallery foundation pit support structure comprises waterproof curtains located on the upstream side and the downstream side of a pipe gallery foundation pit correspondingly; thirdly, pipe gallery foundation pit earth excavation and pipe gallery foundation pit inner structure construction are conducted; and fourthly, after structural construction in the pipe gallery foundation pit is completed, foundation pit backfilling is conducted, and the cofferdam and the flow guide steel pipes are dismantled. According to the underneath crossing tidal river reach pipe gallery foundation pit full-section pipe erecting forced drainage and diversion method, the river channel drainage and diversion efficiency can be improved, the pipe gallery construction progress can be accelerated, the influence of the tidal effect of the river channel entering the sea on the foundation pit can be reduced, a dry operation environment is provided for the interior of the foundation pit, and the foundation pit construction safety is improved.
本发明涉及一种下穿感潮河段管廊基坑全断面架管强排导流方法，其包括如下步骤：步骤一、在管廊基坑施工位置的河道上游和下游分别进行全断面围堰施工，上游围堰和下游围堰之间设置多个连通河道上下游的导流钢管；步骤二、管廊基坑围护结构施工，管廊基坑围护结构包括分别位于管廊基坑上下游两侧的止水帷幕；步骤三、管廊基坑土方开挖及管廊基坑内结构施工；步骤四、管廊基坑内结构施工完成后，进行基坑回填，并拆除围堰和导流钢管。本发明提供的下穿感潮河段管廊基坑全断面架管强排导流方法能够提高河道导排效率，加快管廊施工进度，且能够减少基坑受入海河道的潮汐作用的影响，为基坑内部提供干燥作业环境，提高基坑施工的安全性。
Full-section pipe erecting forced drainage diversion method for pipe gallery foundation pit of underneath crossing tidal river reach
一种下穿感潮河段管廊基坑全断面架管强排导流方法
LEI XIAN (author) / SONG WEIHUA (author) / CHENG BING (author) / TANG ZHEXI (author) / LYU PENG (author)
2024-07-30
Patent
Electronic Resource
Chinese
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