Process for constructing underground structural walls without linings

Abstract

The invention relates to a process for constructing underground structural walls without linings. The process is characterized by prefabricating wall panels on the ground, transporting the wall panels, forming slots, hoisting the wall panels into the slots, constructing spliced piles and grouting the toes and sides of the walls. The process has the following advantages: the underground structural wall panels can be fabricated on the ground and then transported to the construction site to hoist and form slots on the underground structural walls and install and splice the wall panels, and the slots can be continuously formed on the underground structural wall panels and the underground structural wall panels can be continuously hoisted, thus improving the construction efficiency; the underground structural walls are unnecessary to serve as lining walls when serving as underground structures combining two walls, thus improving the use ratio of the underground space; the construction technology of the underground structural walls without linings is applied, thus reducing the site construction processes, shortening the construction period and ensuring the quality of the underground structural wall bodies; the process for constructing the foundation pit enclosure structure saves resources, is environment-friendly and further ensures quality; and by using the process, the economic and social benefits are remarkable and the research results have higher application value.

Description

technical field [0001] The invention relates to a construction technology of an underground structural wall without lining. Background technique [0002] At present, urban construction is changing with each passing day, and high-rise and super-high-rise buildings are increasing day by day. However, due to its weak geological conditions, dense adjacent buildings and complex underground pipelines in Shanghai, the deep foundation construction of many buildings must be surrounded by foundation pits. deal with. At present, cast-in-place underground diaphragm wall technology is widely used. It can adapt to the requirements of different shapes of underground structures in construction. It has the advantages of low construction noise, no vibration and extrusion, easy to master construction procedures, fast construction speed and small impact on the environment. Because it pours concrete underwater, there are inevitably some defects and disadvantages, such as: 1. It is easy to get m...

AI Technical Summary

Problems solved by technology

At present, cast-in-place underground diaphragm wall technology is widely used. It can adapt to the requirements of different shapes of underground structures in construction. It has the advantages of low construction noise, no vibration and extrusion, easy to master construction procedures, fast construction speed and small impact on the environment. Because it pours concrete underwater, there are inevitably some defects and disadvantages, such as: 1. It is easy to get mud when pouring concrete, and the steel bars are covered with mud, and the grip is low, so the quality of the wall is difficult to guarantee , it is easy to cause irregular water seepage on the wall; 2. When the soil layer is weak or sandy soil, if the mud retaining wall is not properly handled, there will be a problem of collapse of the groove wall, and the flatness of the wall is difficult to control; 3. The underground continuous wall is used as an underground When it is part of the main structure of the building, it is necessary to set up a lining wall on the inner side of the wall to jointly bear the force and meet the anti-seepage requirements

Images