Study on the Influence of Quarry Blasting on Adjacent Tunnel

Abstract

The blasting in the adjacent quarry would cause the existing tunnel structure damage and strength weakening. But the degree of damage to the tunnel structure and the stress redistribution state caused by adjacent blasting need to be accurately quantified and evaluated. In order to find out the actual situation of the disease and judge the current stability of the tunnel, and comprehensively evaluate the influence of the mining activities on the safety of the tunnel structure, the influence of adjacent quarry blasting excavation on the stress and displacement of tunnel structure was analyzed through static and dynamic numerical analysis.