A treatment method for highway tunnel pavement uplift disease without interrupting traffic

Abstract

The invention belongs to the field of civil engineering, and specifically relates to a method for treating road surface uplifts in expressway tunnels without interrupting traffic. The method includes: planning the lanes before and after construction, setting and laying temporary safety facilities; Install steel pipes with locking feet inside the cable trough; excavate the road surface in sections; install steel beams and channel steel longitudinal beams; cast-in-place concrete floor, concrete leveling layer and concrete pavement; guide and change traffic lanes, repeat. This method adopts the combined reinforcement method of steel pipe piles, steel beam structures and concrete cross-bracing bottom plates, which can complete the thorough treatment of road surface uplift diseases under the condition that only one lane of the expressway is closed, and ensure the safety of the tunnel structure and operation.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a treatment method for road surface uplift in expressway tunnels without interrupting traffic. Background technique [0002] Since the beginning of the new century, the mileage of expressway tunnels in my country has increased rapidly. Due to the linear requirements, the tunnels often pass through expansive weak strata such as muddy and carbonaceous. The tunnel is an underground hidden project, the load and environment are complex and difficult to measure, coupled with reasons such as survey design and on-site construction not in place, it is very easy to have road surface uplift during the operation period, affecting the safety of tunnel operation. [0003] In view of the above-mentioned tunnel bottom structural diseases, invert restoration or inversion addition is often adopted for thorough treatment, but usually it is necessary to close the traffic and divert the t...

AI Technical Summary

Problems solved by technology

The tunnel is an underground concealed project, the load and environment are complex and difficult to measure, coupled with reasons such as survey design and on-site construction not in place, it is very easy to have road surface uplift during the operation period, which affects the safety of tunnel operation

[0003] In view of the above-mentioned tunnel bottom structural diseases, invert restoration or inversion addition is often adopted for thorough treatment, but usually it is necessary to close the traffic and divert the traffic of passing vehicles, which has a great impact on the traffic of the nearby road network, and the pressure from road users and management units is also high. It is getting bigger and bigger; tunnel bottom grouting reinforcement can close a lane for construction, but the treatment is not thorough, the disease may recur to a large extent, and there are certain hidden dangers in the safety of the tunnel structure

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