粘土地层同步注浆盾构压力消散的地面降沉影响分析探究

Analysis and Research on the Effect of Simultaneous Grouting Shield Pressure Dissipation in Clay Strata on Ground Subsidence

本研究参考某隧洞注浆盾构工程案例,借助Flac3D工程模拟计算系统,以三维精细化有限差分数值模拟成果与工程检测成果比对分析的方式,对粘土地层同步注浆盾构压力消散的地面降沉影响课题开展专题分析探究,分析探讨同步注浆过程中灌注浆初期强度、灌注量、灌注压力对地面降沉的影响,以科学数据验证消散灌注压力原理的工程应用有效性。

This study refers to a tunnel grouting shield engineering case,with the help of Flac3D engineering simulation calculation system,by the way of three-dimensional refined finite difference numerical simulation results and engineering inspection results comparison analysis method,the pressure dissipation of synchronous grouting shield in clay formation The subject of ground subsidence impact is subject to a special analysis to explore the effects of initial strength,filling volume,and perfusion pressure on ground subsidence during synchronous grouting,and to verify the effectiveness of engineering application of the principle of dissipating perfusion pressure with scientific data.