Tunnel disease treatment method capable of achieving repeated grouting and applicable to special grout

Abstract

The invention discloses a tunnel disease treatment method capable of achieving repeated grouting and applicable to special grout. The treatment method comprises the following steps that 1, multiple sets of repeatable grouting component sets are arranged at intervals in the longitudinal direction of a tunnel between a tunnel primary support and a waterproof layer in the section, where water leakage diseases are prone to occurring, of the tunnel and in front of and behind the section, where water leakage diseases are prone to occurring, of the tunnel; 2, two adjacent connecting pipes of two adjacent grout overflowing cylinders close to the ground of the tunnel are each connected with a horizontal pipe, the horizontal pipes horizontally penetrate through the waterproof layer and a secondary lining and extend into the tunnel, the connecting pipe on the upper portion serves as a discharging end, and the connecting pipe on the lower portion serves as a grouting end and is used for being connected with a grouting machine; and 3, the discharging end is closed, the grouting machine is started, and the grout is injected from the grouting end, conveyed through an annular grout conveying channel and sequentially conveyed into the grout overflowing cylinders. According to the method, low-cost and high-efficiency repeated grouting is achieved, and the problems that the durability of grout materials is poor, and diseases are repeatedly treated are solved.

Description

technical field [0001] The invention belongs to the technical field of tunnel disease control, and in particular relates to a tunnel disease control method capable of repeated grouting and applicable to special grout. Background technique [0002] In the tunnel engineering constructed by mining method in my country, the compound lining design of "sprayed concrete primary support + waterproof board + poured concrete secondary lining" is often adopted. The secondary lining and primary support can slide relative to each other without transmitting shear force, but In the process of engineering practice, sporadic damages often occur when the waterproof board is welded and hanged, causing groundwater to intrude along the damaged part of the waterproof board, soak the secondary lining in a large area, and then penetrate into the tunnel along the reserved deformation joints or newly added micro-cracks of the secondary lining. Formation of disease. [0003] The current disease control...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a tunnel disease treatment method that can repeat grouting and is applicable to special grout in order to realize low-cost and high-efficiency repeated grouting, and overcome the poor durability of grouting materials. , the problem of repeated treatment of diseases; and no drilling is required, which prevents drilling damage to the tunnel support structure and maintains the safety of the tunnel structure

Images