Underground continuous wall refining roundness connection structure and construction method thereof

Abstract

The invention discloses an underground continuous wall refining roundness connection structure and a construction method thereof. The connection structure comprises I-type connection walls, II-type connection walls connected between the adjacent I-type connection walls, and casing milling sections connected between the I-type connection walls and the II-type connection walls; the I-type connection walls, the II-type connection walls and the casing milling sections are connected to form an annular shape, and an excavation face is in the annular shape; each I-type connection wall comprises an I-type separating and connecting slot connected with the corresponding II-type connection wall, an I-type separating and rotating slot connected to the outer end of the I-type separating and connecting slot and an I-type separating and smoothing slot connected to the outer end of the I-type separating and rotating slot; and the center lines of the I-type separating and connecting slots and the I-type separating and rotating slots are connected in an included angle mode. According to the invention, the I-type connection walls are arranged in a block division mode, so that the annular structure of the underground continuous wall is guaranteed; the I-type connection walls are excavated in three sections, so that the excavation accuracy is guaranteed; through the arrangement of reinforcing bars in the connection walls, the strength and the connecting performance are favorably enhanced; and through the arrangement of the casing milling sections, mutual fixation of the I-type connection walls and the II-type connection walls is facilitated.

Description

technical field [0001] The invention belongs to the technical field of underground diaphragm walls, and in particular relates to a refined roundness connection structure of an underground diaphragm wall and a construction method thereof. Background technique [0002] The underground diaphragm wall is a wall formed by using a grooving machine on the ground for basic engineering, then placing a steel cage and pouring concrete; effect. It also has the advantages of small construction vibration, high wall rigidity, good integrity, fast construction speed, earth and stone saving, and can be used for deep foundation pit support and reverse construction in dense buildings, so it is widely used. [0003] During the construction of the underground diaphragm wall, especially in the construction of the circular underground diaphragm wall, the conventional method to ensure the roundness is to divide the underground diaphragm wall into I-type grooves and II-type grooves, both of which a...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an underground diaphragm wall refinement roundness connection structure and its construction method, which is used to solve the roundness of the annular diaphragm wall or the convenience of the ring Technical issues such as construction, fabrication and connection of diaphragm walls, and rapid construction by framing

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