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Construction method of underground diaphragm wall and TRD connection water stop system
The invention relates to an underground diaphragm wall and TRD connection water stop system construction method which comprises the following specific steps: step 1) high-pressure jet grouting pile construction: after a high-pressure jet grouting drilling machine is in place, drilling machine guniting construction is carried out, and a mobile support rapid recharging structure is adopted to carry out grout supplementing and grouting, so that the construction of a high-pressure jet grouting pile is completed; then the high-pressure jet grouting drilling machine is moved to a lower pile for construction; (2) underground diaphragm wall construction is conducted, specifically, an underground diaphragm wall foundation groove is excavated, then a reinforcement cage is hoisted into the underground diaphragm wall foundation groove, concrete is poured, and underground diaphragm wall construction is completed; (3) joint section water stopping construction is conducted, specifically, closed-loop steel sheet piles are arranged on the outer sides of the high-pressure jet grouting piles for water stopping; (4) joint construction is conducted, specifically, the special-shaped profile steel and the reinforcement cage are welded and then synchronously put into the underground diaphragm wall foundation groove together with the reinforcement cage; and concrete is poured at the joint, and construction of the joint is completed. The method has the advantages of being high in foundation pit excavation safety, good in high-pressure jet grouting pile forming quality, easy to operate and the like, and has good comprehensive benefits.
本发明涉及一种地下连续墙与TRD衔接止水体系施工方法，包括如下具体步骤：步骤1)高压旋喷桩施工：高压旋喷钻机就位后进行钻机喷浆施工，采用移动支架快速回灌结构进行补浆和压浆，从而完成一个高压旋喷桩的施工；然后高压旋喷钻机移位至下根桩施工；步骤2)地连墙施工：开挖地连墙基槽，然后向地连墙基槽中吊装钢筋笼、浇灌混凝土，完成地连墙施工；步骤3)衔接段止水施工：在高压旋喷桩外侧设置闭环钢板桩进行止水；步骤4)衔接处施工：将异形型钢与钢筋笼焊接后与钢筋笼同步下放至地连墙基槽中；在衔接处浇筑混凝土，完成衔接处施工。本发明具有基坑开挖安全性高、高压旋喷桩成桩质量好，操作简单等特点，有较好的综合效益。
Construction method of underground diaphragm wall and TRD connection water stop system
The invention relates to an underground diaphragm wall and TRD connection water stop system construction method which comprises the following specific steps: step 1) high-pressure jet grouting pile construction: after a high-pressure jet grouting drilling machine is in place, drilling machine guniting construction is carried out, and a mobile support rapid recharging structure is adopted to carry out grout supplementing and grouting, so that the construction of a high-pressure jet grouting pile is completed; then the high-pressure jet grouting drilling machine is moved to a lower pile for construction; (2) underground diaphragm wall construction is conducted, specifically, an underground diaphragm wall foundation groove is excavated, then a reinforcement cage is hoisted into the underground diaphragm wall foundation groove, concrete is poured, and underground diaphragm wall construction is completed; (3) joint section water stopping construction is conducted, specifically, closed-loop steel sheet piles are arranged on the outer sides of the high-pressure jet grouting piles for water stopping; (4) joint construction is conducted, specifically, the special-shaped profile steel and the reinforcement cage are welded and then synchronously put into the underground diaphragm wall foundation groove together with the reinforcement cage; and concrete is poured at the joint, and construction of the joint is completed. The method has the advantages of being high in foundation pit excavation safety, good in high-pressure jet grouting pile forming quality, easy to operate and the like, and has good comprehensive benefits.
本发明涉及一种地下连续墙与TRD衔接止水体系施工方法，包括如下具体步骤：步骤1)高压旋喷桩施工：高压旋喷钻机就位后进行钻机喷浆施工，采用移动支架快速回灌结构进行补浆和压浆，从而完成一个高压旋喷桩的施工；然后高压旋喷钻机移位至下根桩施工；步骤2)地连墙施工：开挖地连墙基槽，然后向地连墙基槽中吊装钢筋笼、浇灌混凝土，完成地连墙施工；步骤3)衔接段止水施工：在高压旋喷桩外侧设置闭环钢板桩进行止水；步骤4)衔接处施工：将异形型钢与钢筋笼焊接后与钢筋笼同步下放至地连墙基槽中；在衔接处浇筑混凝土，完成衔接处施工。本发明具有基坑开挖安全性高、高压旋喷桩成桩质量好，操作简单等特点，有较好的综合效益。
Construction method of underground diaphragm wall and TRD connection water stop system
地下连续墙与TRD衔接止水体系施工方法
LIU WEI (author) / LIU LUGANG (author) / XIN GUOQIANG (author) / WANG ZHEN (author) / GAO SHUITANG (author) / HU CHAO (author) / HUANG BAI (author) / WEI CHUNXING (author) / NI YANGKAI (author) / SUN JUNHAO (author)
2023-01-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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