Surface adjustable air pulse crushing device and construction method for tunnel fluid filling lining

Abstract

The invention provides a face-type adjustable air pulse crushing device for a tunnel fluid filling lining. The face-type adjustable air pulse crushing device for the tunnel fluid filling lining includes a spring support with a reaction rod; a metal shell body without a bottom cover and with a first wedge-shaped head part is placed in an outer shell body and is hinged to the inner wall of the outershell body, and a gas storage bin with a second wedge-shaped head part is arranged in the metal shell body without the bottom cover, a rotating motor is arranged on the bottom surface of the inner part of the gas storage bin, and an output shaft of the rotating motor is connected with a connecting truss at the bottom of a bottomless cone through a rotating shaft; a plurality of metal shell body holes are evenly formed in the first wedge-shaped head part of the metal shell body without the bottom cover, and a plurality of gas storage bin holes are evenly formed in the second wedge-shaped headpart of the gas storage bin; and a plurality of conical holes are evenly formed in the bottomless cone. According to the face-type adjustable air pulse crushing device for the tunnel fluid filling lining and a construction method, the problems of difficult crushing of fluid filling materials on a second lining steel arch frame and high pressure of the second lining steel arch frame can be solved,and efficient and rapid crushing of a large number of the fluid filling materials is realized on the depth and breadth of the region, thus the pressure brought on the second lining steel arch frame isalleviated, the service life of the tunnel lining is prolonged, and the economic losses are reduced.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a surface-type adjustable gas pulse crushing device and a construction method for tunnel fluid filling and lining. Background technique [0002] At present, the surrounding rock of high in-situ stress soft rock tunnel has a long creep time and a large amount of deformation. In the developed tunnel fluid filling lining support structure, it is difficult to effectively discharge the filling material due to the compaction and compression, and there are existing construction machinery rock breakers. It is mainly used in large-scale longitudinal depth rock-breaking projects. The amount of dust in mechanical operation is large and the mechanical force value is certain. There are also high-temperature and high-pressure, high-water rock-breaking machines, and rock-breaking devices that use cutting methods. Not only does it consume a lot of energy, but also The lining support ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a surface-type adjustable gas pulse crushing device and construction method for the tunnel fluid filling lining, which can solve the difficulty of breaking the fluid filling on the second lining steel arch, and the second lining steel arch To solve the problem of high pressure, realize the efficient and rapid crushing of a large amount of fluid filling in depth and breadth, relieve the pressure it brings to the second lining steel arch, prolong the service life of tunnel lining and reduce economic losses

Images