摘要
巴中至达州高速公路白顶子隧道进口穿越错落体,相关各方对设计与施工方案进行反复论证,做了两次设计变更,克服了落石与塌方对隧道的威胁,保证了隧道工程的顺利完工,并总结出了隧道穿越错落体的设计原则,即'防落石,防坍塌,重超前,重监控,全荷载,强支护'的18字方针。同时,在变更设计的过程中,采用自主研发的SDC隧道专用计算软件分析评价隧道初期支护与二次衬砌的安全性,为支护参数的确定提供了理论依据。
The entrance section of the Baidingzi Tunnel on the Bazhong-Dazhou expressway passes through faulted rock masses. The design and construction schemes were discussed repeatedly by the related parties and modifications were made twice to eliminate the threats of falling rocks and collapse and to ensure the smooth completion of tunnel construction. Furthermore, the design principles ＂preventing the rock from falling and collapsing advance support, highlighting monitoring, bearing the whole load, and installing heavy support＂ are , enhancing the finally summed up. Meanwhile, the safety of the primary support and secondary lining were analyzed and evaluated by the SDC soft- ware independently developed by the authors, providing a theoretic basis for determining the support parameters.
出处
《现代隧道技术》
EI
北大核心
2013年第4期152-157,共6页
Modern Tunnelling Technology
关键词
隧道
错落体
设计原则
支护参数
Tunnel
Faulted rock masses
Design principle
Support parameters
