A construction method for staggered joint assembly of shield segments

Abstract

The invention particularly relates to a construction method for staggered joint splicing of shield segments. The method specifically comprises the following steps that 1, segment type selection is conducted in the mode that machine type selection and manual type selection are combined, firstly, machine type selection is adopted, then manual type selection is adopted; 2, segments are hoisted, put down into a well and transported, firstly, the segments are checked, the segments are conveyed along with the tunneling progress of a shield tunneling machine; and 3, segment splicing is conducted, wherein laser positioning is used forsegment splicing. The construction method for staggered joint splicing of the shield segments has the beneficial effects that the splicing speed of the segments is increased, the segment edge damage is greatly reduced, and the forming quality of the segments and a tunnel is improved; the positioning is accurate, and loss of used tools is reduced.

Description

technical field [0001] The invention relates to the technical field of shield tunnel construction, in particular to a construction method for staggered seam assembly of shield tunnel segments. Background technique [0002] Shield method construction has many advantages such as fast, safe, and little impact on ground buildings, and has been recognized by more and more people. With the advancement of science and technology, the enhancement of comprehensive national strength, and the rapid development of China's subways, highways, railways, water conservancy and other infrastructure, large-diameter shields have been increasingly used in urban underground engineering construction. [0003] For example, the Chinese utility model patent with the application number 201621008075.5 discloses a combined fixing device for splicing shield copper tube sheets, which includes a body and legs arranged at the bottom of the body, and rollers are also provided at the bottom of the legs. The t...

AI Technical Summary

Problems solved by technology

[0005] At present, large-diameter shield segments in China are mainly divided into two types: general-purpose segments and wedge-shaped segments. General-purpose segments have the characteristics of simple production methods and single selection. It is very easy to have large segment misalignment, damage, water leakage and heaving due to large segment gaps, resulting in great construction risks and poor product quality

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