Construction method of revetment lattice diaphragm wall structure

Abstract

The invention discloses a construction method of a bank protection lattice type diaphragm wall structure, which comprises the following steps of: driving support piles in a set I-shaped lattice type diaphragm wall position and on the outer sides of the outer walls of a front wall and a rear wall of a diaphragm wall to be constructed respectively; full reinforcement cement mixing pile construction is conducted in a cavity between the left middle partition wall and the right middle partition wall, adjacent to each other, of the underground diaphragm wall to be constructed; underground diaphragm wall grooving construction is conducted; firstly, a reinforcement cage is installed in the I-shaped first open groove, and then a reinforcement cage is installed in the I-shaped closed groove; the two left-right adjacent T-shaped reinforcement cages at the front wall and the rear wall are fixedly connected through I-shaped connectors; the joint box is hoisted into the I-shaped joints of the front wall and the rear wall, and at least seven guide pipes are installed in the T-shaped reinforcement cage and the linear reinforcement cage; underwater concrete pouring is conducted at the grooving position of the underground diaphragm wall through a guide pipe at the same time; and the joint box at each I-shaped steel joint is jacked and pulled. The collapse probability of the groove section is effectively reduced, and the perpendicularity of the groove wall is guaranteed.

Description

technical field [0001] The invention relates to a construction method of a ground connecting wall structure, in particular to a construction method of a revetment lattice type ground connecting wall structure. Background technique [0002] As an effective water interception, anti-seepage, load-bearing and water-retaining structure, the underground diaphragm wall is often used in the support construction of deep foundation pits, municipal pipe trenches, bank protection and other projects. Usually, one or more joint forms are used to connect two adjacent units. The wall sections are connected to each other to solve the problem of water leakage and connection integrity at the joint of the two unit wall sections. [0003] In order to ensure the normal use of the embankment during the excavation of the immersed tube foundation groove and the docking of the immersed tube, the original embankment structure should be strengthened before construction. Strictly strengthen the revetme...

AI Technical Summary

Problems solved by technology

However, due to the cantilever structure of the lattice-type ground connection wall, when the depth of the foundation groove is large, there are also disadvantages such as large cross-section of the support structure, increased engineering cost, and the difficulty of construction at the connection part of the partition wall, and the construction quality is difficult to guarantee. The stress conditions are poor, and it is difficult to ensure the rigid connection and other problems, which affect the safety of the original embankment structure

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