Matched protection method for adjacent high-voltage electric tower in tunnel construction

Abstract

The invention discloses a matching protection method for adjacent high-voltage electric towers in tunnel construction, which comprises the following steps: S1, segmental hoisting of a reinforcement cage: the reinforcement cage of a tunnel support pile is divided into a plurality of segments to be respectively hoisted, the first segment of the reinforcement cage is fixed by channel steel, and the subsequent reinforcement cage is respectively connected with the previous segment of the reinforcement cage by electric arc welding; s2, sleeve valve pipe deep hole grouting is conducted, specifically, multiple rows of deep drill holes are formed between the tunnel structure and the electric tower, and disturbance and differential settlement of the pile foundation structure of the electric tower are reduced in a sleeve valve pipe grouting reinforcement mode; s3, protecting the connecting beams of the pile foundations of the electric tower, and connecting all the pile foundations by newly building the connecting beams on the pile foundations of the electric tower, so that the stress of the whole electric tower is enhanced, and the structure of the electric tower is prevented from being disturbed; according to the method, cost can be saved, construction is convenient and safe, the construction speed of the next stage can be effectively increased, the problems that a traditional high-voltage electric tower migration method is long in construction period, large in risk, wide in influence and the like are solved, and meanwhile a safe and efficient construction environment is created for adjacent tunnel construction.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a matching protection method for adjacent high-voltage electrical towers during tunnel construction. Background technique [0002] In the construction of municipal tunnel projects, urban infrastructure is becoming more and more perfect. In the process of upgrading and reconstruction on the basis of old facilities or in adjacent locations, how to protect existing facilities such as underground pipelines and above-ground high-voltage electrical towers from damage will be a problem. It has become the primary problem, especially the construction adjacent to the high-voltage tower, which can neither disturb the pile foundation of the tower, but also maintain a safe distance from the high-voltage line. [0003] During the tunnel construction process, if there are adjacent high-voltage towers, and some of the construction contents cannot guarantee the stability of the towers...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a supporting protection method for tunnel construction adjacent to high-voltage electric towers, which can save costs, and the construction is convenient and safe, which can effectively improve the construction speed of the next stage, and solve the problem of long construction period and risk of traditional high-voltage electric tower migration methods. large, wide impact and other disadvantages, and at the same time create a safe and efficient construction environment for the construction of adjacent tunnels

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