Analysis of force mechanism and reinforcement effect of leading high pressure grouting ductule Basing on numerical simulation

摘要：

　　In order to study the force mechanism and reinforcement effect of high-pressure second grouting method in leading support of soft-fracture wall rock,with the example of Heishiling highway tunnel construction at the shallow depth and crushed zone of the tunnels exit,which belongs to Zhangshi highway in Hebei province,by Three-Dimensional Numerical Simulation of GTS (Ground and Tunnel Analysis System),monitoring and surveying method,force mechanism and wall rock convergence were simulated and measured experimentally.The results showed that ductule high-pressure second grouting combined with double side-wall heading excavation method achieved good results,the maximal vault subsidence is 18.5mm,the maximal uplift value of inverted arch is 17.8mm,and the maximum displacement value on both sides of the wall is 15.9mm.

关键词： high pressure grouting ductule force mechanism reinforcement effect numerical simulation

作者: Hongjian Lu

作者单位: School of Resources and Environment,Hebei United University,Tangshan 063009,China

会议类型: 国际会议

会议名称: 2012 International Conference on Intelligent System and Applied Material(2012智能系统与应用材料国际会议)(GSAM2012)

会议地点: 太原

会议语种:英文

页码: 768-772

在线出版日期: 2012-01-13（万方平台首次上网日期，不代表论文的发表时间）