注浆在地铁矿山法隧道中的应用

研究目的：随着我国城市轨道交通的快速发展，在城市地铁中按喷锚构筑法原理进行设计和施工的浅埋暗挖矿山法隧道越来越多，本文旨在分析在矿山法隧道中各种辅助施工措施的特点、适用条件。 研究方法：通过对多个矿山法隧道的调查研究，对不同文地质条件、周边环境下的注浆措施进行分析对比和总结。 研究结论：在城市地铁中的矿山法隧道，需根据工程的周边环境、隧道埋置深度、工程及水文地质条件、隧道断面尺寸，结合隧道施工的基本工法，选择合理的注浆参数，对地层及围岩进行必要的加固和止水，不但可以避免较多的施工风险，节约工程投资，而且还可以减少对周边环境的影响及破坏，满足工期的要求。

Application of Auxiliary Construction Measures in Metro Mining Method Tunnel

Research purposes:With the rapid development of urban rail transit in China,more and more shallow mining method tunnels in urban metros are designed and constructed according to the shotcrete and rockbolt construction principle.This paper analyzes the characters,applicable conditions of various auxiliary construction measures for mining method tunnel.Research methods:Though investigating and studying several mining method tunnels,the analysis,comparison and conclusion for various auxiliary construction measures have been made under different engineering geological and hydrogeological conditions.Research conclusions:In the design and construction for mining method tunnels in urban metro,combining with the basic engineering method of tunnel construction,this paper compares,chooses and adopts some reasonable auxiliary construction measures according to the circumference environment of the project,the embedded depth of tunnel,engineering and hydrogeological conditions,and the tunnel section size.Strata and surrounding rock shall be necessarily strengthened and water sealed which can avoid the major construction risks and save engineering investment but also reduce the influence and damage of the circumjacent environments and meet the requirement of the construction period.