The Deformation And Damage Mechanics And Repairing And Reinforcement Technology Research Of Dynamic Pressure Tunnel

This paper, Base the background of Tong-Ting Mine eight-two rock cross-cut , have adopt combinative ways of academic analyze,numerical simulation and real practice. Have systemic analysis and research to the destroy mechanism of dynamic roadway and grouting technology.From the distortion and destroy character of Tong-Ting Mine eight-two rock cross-cut, base on the regularities of distribution of work face support pressure, have buit the elasto modle of the transmission form support pressure to tunnel floor, and deduced the equations of the transmission form support pressure to tunnel floor ; With the analyze of wall rock destabilization process of dynamic tunnel, link to he regularities of distribution of work face support pressure,have do comparative profundity research to dynamic roadway destroy process and distortion mechanism; Form the theory of tunnel wall rock control,with the mechanics analysis to reinforce wall rock of grouting,have ensure that use the method of grouting to reinforce and repair the wall rock of eight-two crosscut; Bases on the difference of different roadway's distortion and destroy degree, use different reinforce methods to reinforce eight-two crosscut and have designed there reinforce parameter, and accord this, have used large-scale finite element software of FLAC^3D, made different numerical count modes of different condition, have do some numerical simulate study to grouting effect and grouting parameter; According to above researchs, At last, have done industrial examination in the Eight-two rock of Tong-Ting Mine , and with the analysis of measure date, have a general analysis and evaluation to the effect of roadway grouting. This research result will give some guide mining and theory reference of dynamic tunnel reinforce project of similar condition.