Influence Analysis Of Surrounding Rock Mass Collapse On Tunnel Structure

In recent years, along with the country the construction of infrastructure investment increasing, trafficconstruction business has made rapid development.Our country highway tunnel especially long and largetunnel construction has made considerable development.In the tunnel construction and operation process,by the influence of terrain or other special engineering geological condition, often appear tunnelsurrounding rock collapse, lining structure crack, percolating water disease Especially the tunnelsurrounding rock collapse, its influence scope, the consequences are also more serious, often lead to tunnellining structure destruction, construction interrupt, endanger mechanical equipment and personnel safety,etc,Sometimes surrounding rock collapse will extend to the surface and in ground form the pit, which causegreat damage to the periphery environment.This paper on the basis of previous studies, According to the actual needs of the tai (yuan) ao (men)highway henan pingdingshan period of a wind tunnel surrounding rock cliff collapse disease managementprocess. Through the GPS positioning test of the surface subsidence area, the seismic wave detection ofmountain subsidence area and the detection of tunnel lining cavity structure in GPR methods, the mainresearch space position of subsidence area behind tunnel lining surrounding rock,internal structure orsubsidence area, and proposed how to carry out accurate and rapid detection and location to subsidencearea,and research the cause of the tunnel diseases, the surrounding rock of the tunnel collapse, theinfluence of the safety of the structure analysis and evaluation.In the tunnel operation state, the surroundingrock collapse area or comprehensive treatment technology, surface deep hole grouting method, groutingsequence, grouting pressure on tunnel structure safety influence, etc.