土工基础

›› 2013, Vol. 27 ›› Issue (2): 136-140.

• 工程实录 • 上一篇    下一篇

岩溶强烈发育区隧道的现场监测与分析

蒋颖   

  1. （中铁第四勘察设计院集团有限公司，武汉 430063）
  • 收稿日期:2013-03-03 出版日期:2013-04-20 发布日期:2013-04-26
  • 作者简介:蒋颖，男，工程师，2007年毕业于中南大学，工学硕士。

Construction Monitoring of Tunnels in Well Developed Karst Terrains

JIANG Ying   

  1. (China Railway Siyuan Survey and Design Group Co., Ltd.，Wuhan 430063)
  • Received:2013-03-03 Online:2013-04-20 Published:2013-04-26

摘要： 隧道穿越富水软弱围岩，灰岩地区岩溶强烈发育，多采用双层初期支护。此类隧道在国内并不多见，可借鉴的工程经验很少，因此对隧道的现场监测就显得尤为重要。通过监测围岩压力、衬砌水压、初支以及衬砌内力等内容，可以分析设计参数的安全性及合理性，指导施工，为类似的工程提供经验。

关键词: 富水溶洞, 双层初期支护, 现场监测, 受力特性, 反分析

Abstract: The double linear supporting technique is rarely used in the construction of tunnels in rich groundwater and the welldeveloped karst soft surrounding rock masses. Little published literatures can be found as a construction guide. Therefore, it is critically important for the monitoring of the tunnels during the construction. This paper presents the monitoring results of stress in the rock mass, pore water pressures as well as stress within the liner. The monitoring results can provide the accumulation of the experience for the tunnel construction in similar conditions.

Key words: Groundwater Filled Karst Rock Caverns, Double Liner Support, Field Monitoring, Stress--Strain Properties, BackAnalysis