›› 2016, Vol. 30 ›› Issue (3): 367-371.

• 工程实录 • 上一篇    下一篇

岩溶隧道衬砌抗落石冲击计算分析

陈中学1,钱 玮2,李文广1,任 涛3   

  1. (1.重庆市交通规划勘察设计院,重庆 401121; 2.海军海防工程研究中心,北京 100071;
    3.重庆市交通工程质量检测有限公司,重庆 401121)
  • 收稿日期:2016-03-09 修回日期:2016-03-25 出版日期:2016-06-20 发布日期:2016-06-21
  • 作者简介:陈中学(1978-),男,博士,高级工程师,注册岩土工程师,研究方向为岩土设计与科研。

Falling Rock Resistant Estimation on Tunnel Liner in Karstic Rock Caverns

CHEN Zhongxue1, QIAN Wei2, LI Wenguang1, REN Tao3   

  1. (1.Chongqing Transportation Planning Survey & Design Institute, Chongqing 401121;
    2.Research Center of Coastal Defense Engineering ,Beijing 100071;
    3.Chongqing Transportation Engineering Quality Assurance Co., Ltd., Chongqing 401121)
  • Received:2016-03-09 Revised:2016-03-25 Online:2016-06-20 Published:2016-06-21

摘要: 在岩溶地区修建隧道,经常会遇到溶洞、暗河、突水、突泥等地质灾害,给施工带来巨大难度和工期损失。介绍了城(口)至万(源)快速公路通道八台山隧道施工过程中遇到的一处特大溶洞处治案例,通过计算确定衬砌厚度及洞顶防撞冲击缓冲层厚度,作为设计依据。实践证明:该计算切实可行,加快了溶洞处治周期,减少施工难度,为同类溶洞处治提供经验借鉴。

关键词: 大型溶洞, 二次初砌, 冲击荷载, 模型

Abstract: The common geological hazards in construction of tunnels in karst terrain are: karst rock cavern, underground river, groundwater gush and sudden mud flow etc. These hazards often induce significant difficulties and prolonged construction schedule. This paper presents a case history of mitigation measures used in a very large karst rock cavern in Chengkou to Wanyuan Expressway project. The tunnel liner consider the impact loading of from rock falls.

Key words: Large Karst Rock Cavern, Secondary Lining, Impact Loads, Analytical Model