Self-monitoring and adjusting tunnel lining structure and construction method suitable for crossing active faults

Abstract

The invention discloses a tunnel lining structure of self-monitoring adjustment suitable for crossing active faults and a construction method thereof. The tunnel lining structure comprises a groutingreinforcement layer, an energy dissipation damping layer, a prefabricated tunnel lining structure and a steel arch frame, wherein the grouting reinforcement layer is used for realizing excavation stability when construction is conducted on a surrounding rock excavation face of a fault crushing belt; the energy dissipation damping layer covers the bottom of the grouting reinforcement layer; the prefabricated tunnel lining structure is arranged above the energy dissipation damping layer and is formed by hinging a plurality of sections; the steel arch frame is arranged above the prefabricated tunnel lining structure, the two ends of the steel arch frame are installed at the tops of the steel plates at the two ends of the energy dissipation damping layer correspondingly, and a certain distanceis reserved between the steel arch frame and the grouting reinforcement layer; and a monitoring reinforcing instrument is arranged on the inner wall of a grouting reinforcement region, the monitoringreinforcing instrument comprises a monitoring device and a spray head, wherein the monitoring device is installed on the inner wall of the grouting reinforcement region, the spray head is installed on the monitoring device, the spray head is connected with a grouting pump, and the grouting pump is connected with a slurry source.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a self-monitoring and adjusting tunnel lining structure and construction method suitable for crossing active faults. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] With the continuous growth of my country's economy, in order to meet the urgent needs of the sustained, rapid and coordinated development of the national economy, my country's transportation construction has achieved leapfrog development, accelerating the expansion of the road network scale and improving the road network structure to form a complete, convenient and fast transportation system for the targe...

AI Technical Summary

Problems solved by technology

If the tunnel structure is not improved and optimized, the tunnel passing through the fault will have lining fracture and spalling, resulting in large deflection deformation, and even the tunnel collapses completely, leading to collapse and damage in severe cases

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