A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Water-rich silt weak formation underground diaphragm wall construction method
The invention belongs to the technical field of underground diaphragm wall construction and particularly discloses a water-rich silt weak formation underground diaphragm wall construction method. Through the method, the problem that water-rich silt weak formation underground diaphragm walls are generally poor in quality is solved. The method comprises the steps that S100, auxiliary grooving precipitation construction is performed; S200, guide wall construction is performed; S300, grooving construction is performed; S400, wall brushing is performed, wherein after a subsequent groove section isexcavated to designed elevation, a wall brush is used for cleaning and brushing residues or mud cakes on a first joint surface; S500, bottom clearing and slurry changing are performed; S600, a reinforcement cage of a diaphragm wall is made and lifted; S700, a counterforce box is placed and ejected, and during diaphragm wall construction, concrete is poured after a locking pipe is arranged on the back of H-shaped steel; S800, concrete pouring is performed; and S900, wall toe grouting, wherein after underground diaphragm wall construction is finished, grouting is performed on surfaces of a wallbottom residue layer and a force-bearing soil layer below of the underground diaphragm wall for reinforcement. Through the method, the probability of occurrence of bulging and reinforcing bar exposureof the underground diaphragm wall under the condition of a water-rich silt weak formation is lowered, and the situation of water leakage at seams is relieved.
本发明属于地下连续墙施工技术领域，具体是一种富水粉砂软弱地层地下连续墙施工方法。解决富水粉砂软弱地层地下连续墙质量普遍较差的问题，包括以下步骤。S100～进行辅助成槽降水施工。S200～进行导墙施工。S300～进行成槽施工。S400～刷壁，后续槽段挖至设计标高后，用刷壁器清刷先行幅接头面上的沉碴或泥皮。S500～进行清底换浆。S600～连续墙的钢筋笼制作及吊放。S700～反力箱安放和顶拔，连续墙施工采用锁口管后背在H型钢后再浇筑混凝土。S800～混凝土浇筑。S900～墙趾注浆，在地下连续墙施工结束后，在地下连续墙的墙底沉渣层和以下持力土层的表层进行注浆加固。本发明减少了富水粉砂软弱地层条件下地下连续墙鼓包和露筋的出现，改善了接缝处渗漏水的情况。
Water-rich silt weak formation underground diaphragm wall construction method
The invention belongs to the technical field of underground diaphragm wall construction and particularly discloses a water-rich silt weak formation underground diaphragm wall construction method. Through the method, the problem that water-rich silt weak formation underground diaphragm walls are generally poor in quality is solved. The method comprises the steps that S100, auxiliary grooving precipitation construction is performed; S200, guide wall construction is performed; S300, grooving construction is performed; S400, wall brushing is performed, wherein after a subsequent groove section isexcavated to designed elevation, a wall brush is used for cleaning and brushing residues or mud cakes on a first joint surface; S500, bottom clearing and slurry changing are performed; S600, a reinforcement cage of a diaphragm wall is made and lifted; S700, a counterforce box is placed and ejected, and during diaphragm wall construction, concrete is poured after a locking pipe is arranged on the back of H-shaped steel; S800, concrete pouring is performed; and S900, wall toe grouting, wherein after underground diaphragm wall construction is finished, grouting is performed on surfaces of a wallbottom residue layer and a force-bearing soil layer below of the underground diaphragm wall for reinforcement. Through the method, the probability of occurrence of bulging and reinforcing bar exposureof the underground diaphragm wall under the condition of a water-rich silt weak formation is lowered, and the situation of water leakage at seams is relieved.
本发明属于地下连续墙施工技术领域，具体是一种富水粉砂软弱地层地下连续墙施工方法。解决富水粉砂软弱地层地下连续墙质量普遍较差的问题，包括以下步骤。S100～进行辅助成槽降水施工。S200～进行导墙施工。S300～进行成槽施工。S400～刷壁，后续槽段挖至设计标高后，用刷壁器清刷先行幅接头面上的沉碴或泥皮。S500～进行清底换浆。S600～连续墙的钢筋笼制作及吊放。S700～反力箱安放和顶拔，连续墙施工采用锁口管后背在H型钢后再浇筑混凝土。S800～混凝土浇筑。S900～墙趾注浆，在地下连续墙施工结束后，在地下连续墙的墙底沉渣层和以下持力土层的表层进行注浆加固。本发明减少了富水粉砂软弱地层条件下地下连续墙鼓包和露筋的出现，改善了接缝处渗漏水的情况。
Water-rich silt weak formation underground diaphragm wall construction method
富水粉砂软弱地层地下连续墙施工方法
ZHAO XINLONG (author) / QIN LIANG (author) / LI BO (author) / TONG CHAOBAO (author) / ZHANG ZHENG (author) / ZHOU WEIPING (author) / LI ZHAOXU (author) / LI XIAOKUN (author) / WU LEI (author) / LI GANGZHU (author)
2020-07-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2021
Construction method of silt soil underground diaphragm wall
| European Patent Office | 2024
Construction method for water-rich silt layer diaphragm wall precipitation auxiliary grooving
| European Patent Office | 2023
Construction method for underground diaphragm wall penetrating through super-thick silt layer
| European Patent Office | 2015
Underground water construction method for water-rich silt stratum
| European Patent Office | 2024