Tunnel lining rapid repair structure based on carbon fiber woven mesh and repair method thereof

Abstract

The invention relates to a tunnel lining rapid repair structure based on a carbon fiber woven mesh and a repair method thereof. The tunnel lining rapid repair structure based on the carbon fiber woven mesh comprises self-propelled hollow grouting anchors, joist steel, the carbon fiber woven mesh, U-shaped hooks and a composite mortar layer. The joist steel is arranged on a tunnel lining to be repaired, one end of each self-propelled hollow grouting anchor stretches into the tunnel lining to be repaired in the radial direction of the tunnel lining to be repaired, the other end of each self-propelled hollow grouting anchor is connected with joist steel, the carbon fiber woven mesh is laid on the inner wall of the tunnel lining to be repaired and connected with the joist steel through the U-shaped hooks, and the composite mortar layer is sprayed on the inner surface of the carbon fiber woven mesh. The tunnel lining rapid repair structure based on the carbon fiber woven mesh and the repair method thereof aims to solve the problems existing in the existing tunnel lining reinforcing technology, the structure is reasonable in design, the mechanical property is good the steps of the method is simple, the operability is high, and the project cost is low.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering disease prevention and control, and relates to a tunnel lining repair structure and a repair method, in particular to a tunnel lining rapid repair structure and a repair method based on carbon fiber braided mesh. Background technique [0002] In recent years, with the continuous development of my country's transportation construction, highway tunnel projects have gradually developed in the direction of large and deep burial, and the hydrogeology, surrounding rock types, topography and other conditions it faces are becoming more and more complex. For operating tunnels, with the continuous growth of their operating years, tunnel lining cracks, water leakage, deformation encroachment, falling blocks, spalling, and platform errors gradually occur. According to the statistical results of the technical status of national highway tunnels in 2012, there are 10,022 tunnels in operation, with a t...

AI Technical Summary

Problems solved by technology

Chinese patent ZL200910010259.3 discloses a method of strengthening building structures with fiber woven mesh and fine concrete, which can effectively avoid the generation of microscopic cracks at the interface of building structures, effectively prevent interface peeling and damage, and reinforce building structures reliably, simply and efficiently It is also environmentally friendly, but it cannot produce effective mechanical reinforcement effects on tunnel linings with serious diseases, and is only suitable for the treatment of surface diseases of tunnel linings.

In short, considering the mechanical properties and economic benefits, the existing tunnel lining reinforcement technology can no longer adapt to the development of tunnel engineering maintenance and repair.

Images