A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of water gate engineering staged diversion cofferdam
The invention discloses a construction method of a water gate engineering staged diversion cofferdam. The construction method comprises the following steps that first-stage cofferdams are constructed on the upstream and the downstream of a planned gate site, and accumulated water in the first-stage cofferdams is drained; foundation treatment and foundation pit excavation are carried out in the first-stage cofferdams, and a first-stage lock chamber structure and a first-stage stilling pool structure are constructed; a plurality of positioning pipes are pre-buried in preset positions on a bottom plate of the first-stage stilling pool structure, and the multiple positioning pipes are arranged on the two opposite sides; a second-stage longitudinal cofferdam is constructed; a second-stage transverse cofferdam is constructed, and the transverse cofferdam and the longitudinal cofferdam are connected to form a second-stage cofferdam; the first-stage cofferdams are disassembled, foundation treatment and foundation pit excavation are carried out in the second-stage cofferdam, and a second-stage lock chamber structure and a second-stage stilling pool structure are constructed; and the second-stage cofferdam is disassembled, and a river channel recovers full-section water passing. According to the construction method of the water gate engineering staged diversion cofferdam, construction and disassembly are convenient, and flood draining safety is facilitated.
本发明公开了一种水闸工程分期导流围堰的施工方法，包括以下步骤：在拟建闸址的上、下游施工一期围堰，并排出一期围堰内部的积水；在一期围堰内部进行地基处理、基坑开挖，并施工一期闸室结构及一期消力池结构；在一期消力池结构的底板上的预设位置处预埋多个定位管，多个定位管设置在相对的两侧；施工二期的纵向围堰；施工二期的横向围堰，并使横向围堰与纵向围堰相衔接，形成二期围堰；拆除一期围堰，在二期围堰内部进行地基处理、基坑开挖，并施工二期闸室结构及二期消力池结构；拆除二期围堰，使河道恢复全断面通水。根据本发明的水闸工程分期导流围堰的施工方法，便于施工和拆卸，有利于行洪安全。
Construction method of water gate engineering staged diversion cofferdam
The invention discloses a construction method of a water gate engineering staged diversion cofferdam. The construction method comprises the following steps that first-stage cofferdams are constructed on the upstream and the downstream of a planned gate site, and accumulated water in the first-stage cofferdams is drained; foundation treatment and foundation pit excavation are carried out in the first-stage cofferdams, and a first-stage lock chamber structure and a first-stage stilling pool structure are constructed; a plurality of positioning pipes are pre-buried in preset positions on a bottom plate of the first-stage stilling pool structure, and the multiple positioning pipes are arranged on the two opposite sides; a second-stage longitudinal cofferdam is constructed; a second-stage transverse cofferdam is constructed, and the transverse cofferdam and the longitudinal cofferdam are connected to form a second-stage cofferdam; the first-stage cofferdams are disassembled, foundation treatment and foundation pit excavation are carried out in the second-stage cofferdam, and a second-stage lock chamber structure and a second-stage stilling pool structure are constructed; and the second-stage cofferdam is disassembled, and a river channel recovers full-section water passing. According to the construction method of the water gate engineering staged diversion cofferdam, construction and disassembly are convenient, and flood draining safety is facilitated.
本发明公开了一种水闸工程分期导流围堰的施工方法，包括以下步骤：在拟建闸址的上、下游施工一期围堰，并排出一期围堰内部的积水；在一期围堰内部进行地基处理、基坑开挖，并施工一期闸室结构及一期消力池结构；在一期消力池结构的底板上的预设位置处预埋多个定位管，多个定位管设置在相对的两侧；施工二期的纵向围堰；施工二期的横向围堰，并使横向围堰与纵向围堰相衔接，形成二期围堰；拆除一期围堰，在二期围堰内部进行地基处理、基坑开挖，并施工二期闸室结构及二期消力池结构；拆除二期围堰，使河道恢复全断面通水。根据本发明的水闸工程分期导流围堰的施工方法，便于施工和拆卸，有利于行洪安全。
Construction method of water gate engineering staged diversion cofferdam
水闸工程分期导流围堰的施工方法
ZHANG JIAN (author) / LIU KAICAO (author) / LIU SHIKUN (author) / YANG JIALIN (author) / ZHANG PENG (author) / BU YING (author) / YANG XIAOKANG (author) / OU SONGSONG (author)
2021-08-13
Patent
Electronic Resource
Chinese
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