Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of underwater concrete cutoff wall
The invention discloses a construction method of an underwater concrete cutoff wall. The construction method comprises the following steps of (1) construction preparation; (2) foundation pit excavation and precipitation treatment; (3) erecting of an overwater operation platform; (4) hoisting of a combined formwork; (5) bed rock surface cleaning; (6) foundation pit water injection; (7) conduit configuration; (8) pouring of underwater concrete; (9) underwater maintenance; (10) foundation pit drainage; and (11) formwork removal. According to the construction method, cofferdam foundation pit cutoff wall construction is changed into underwater operation from precipitation operation, the situation that the exposure time of a foundation pit side slope is too long is avoided, the side slope overturning danger under unbalanced water pressure is reduced, meanwhile, the resource investment for precipitation and side slope stability maintaining in the foundation pit excavation process is reduced,and through application and popularization of the construction technology, the implementation effect is good.
本发明公开了一种水下混凝土隔水墙施工方法，包括以下步骤：(一)施工准备；(二)基坑开挖及降水处理；(三)水上操作平台搭设；(四)组合模板吊装；(五)基岩面清理；(六)基坑注水；(七)导管配置；(八)水下混凝土浇筑；(九)水下养护；(十)基坑排水；(十一)模板拆除。本施工工法将围堰基坑隔水墙施工由降水作业改为水下作业，避免了基坑边坡暴露时间过长，减小了在不平衡水压下边坡倾覆危险，同时又减少了基坑开挖过程中用于降水和维持边坡稳定的资源投入，通过对施工工艺的推广应用，实施效果良好。
Construction method of underwater concrete cutoff wall
The invention discloses a construction method of an underwater concrete cutoff wall. The construction method comprises the following steps of (1) construction preparation; (2) foundation pit excavation and precipitation treatment; (3) erecting of an overwater operation platform; (4) hoisting of a combined formwork; (5) bed rock surface cleaning; (6) foundation pit water injection; (7) conduit configuration; (8) pouring of underwater concrete; (9) underwater maintenance; (10) foundation pit drainage; and (11) formwork removal. According to the construction method, cofferdam foundation pit cutoff wall construction is changed into underwater operation from precipitation operation, the situation that the exposure time of a foundation pit side slope is too long is avoided, the side slope overturning danger under unbalanced water pressure is reduced, meanwhile, the resource investment for precipitation and side slope stability maintaining in the foundation pit excavation process is reduced,and through application and popularization of the construction technology, the implementation effect is good.
本发明公开了一种水下混凝土隔水墙施工方法，包括以下步骤：(一)施工准备；(二)基坑开挖及降水处理；(三)水上操作平台搭设；(四)组合模板吊装；(五)基岩面清理；(六)基坑注水；(七)导管配置；(八)水下混凝土浇筑；(九)水下养护；(十)基坑排水；(十一)模板拆除。本施工工法将围堰基坑隔水墙施工由降水作业改为水下作业，避免了基坑边坡暴露时间过长，减小了在不平衡水压下边坡倾覆危险，同时又减少了基坑开挖过程中用于降水和维持边坡稳定的资源投入，通过对施工工艺的推广应用，实施效果良好。
Construction method of underwater concrete cutoff wall
水下混凝土隔水墙施工方法
HAN ZHEN (Autor:in) / ZHANG XINYU (Autor:in) / LI ZHIBING (Autor:in) / ZHOU XIAOYE (Autor:in) / YOU JIANBIN (Autor:in) / ZHANG ZEYOU (Autor:in)
08.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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