Study On Site Selection And Stacking Stability Of Longquan Mountain Tunnel

In recent years,the excavation of the tunnel has been increasing.By the terrain and construction costs of the restrictions,spoil the general principle of the nearest treatment,is bound to affect the local environment.Based on the strength reduction method and saturated unsaturated seepage flow theory,this paper studies the slag stability of slag field in Longquan Mountain tunnel,and the research results are as follows:1.This paper summarizes the types of slag field and the principle of site selection of tunnel slag,and compares the calculation precision of Swedish strip method and simplified Bishop method in slope stability analysis.The horizontal width of the wall Influence of Anti-skid Coefficient,Anti-overturning Coefficient and Stability Coefficient of Earth Wall.2.The stability of the sluice field in the Longquan Mountain tunnel is analyzed by the method of strength reduction.The stability of the slab is studied.The influence of the strength parameter,position and depth on the slope stability is studied.3.The stability of the slag field in the Longquan Mountain tunnel is analyzed by the method of strength reduction.The influence of the strength parameter,position and depth of the crack on the slope stability is studied.4.The influence of different supporting combinations on slope stability under natural conditions and rainfall conditions is analyzed by using the combination of anti-slide piles,bolts and anchor support.Support measures provide a reference.