千岛湖引水隧道衬砌技术的应用方法探讨

本文以千岛湖引水隧道实际工程为例,对隧道衬砌技术进行了介绍,然后根据工程的具体情况对二次衬砌施工技术进行了探讨。

浅谈隧道衬砌质量检测和缺陷分析处理

为保证隧道衬砌质量,须在施工过程中严格控制,对隧道衬砌质量进行检测和缺陷分析处理,评价衬砌的工作状态和安全性能,在工程验收中起到关键作用。文章通过对地质雷达检测隧道衬砌背后回填密实度、钢筋钢架分布和隧道衬砌混凝土厚度的应用介绍,进一步分析隧道二衬的安全性检算,并结合实例,通过对锚杆的应用,探讨隧道衬砌质量缺陷整治的体会。

Researches on the key technology and equipment for rapid construction of long tunnels with large section

Excavation and lining are two main important tasks in tunnel construction. Conventional sequential operations may not be appropriate due to time limit for a project and the high cost of construction. The authors developed a new mode of tunnel construction that excavation and lining can be operated simultaneously. The new mode of tunnel construction has been successfully applied to Dahuofang Water Conveyance Project in Liaoning Province. This paper makes a comparison of Main Beam TBMs and Double Shield TBMs used in Dahuofang Water Conveyance Project, and the features of Full-ring Inner-through Lining Shutter Jumbo which solves the problem of interference between excavation and lining.