明挖现浇电力管廊结构渗漏成因及防治措施研究

Research on Structural Leakage Cause and Control Measures of Cable Tunnels Constructed by Excavation and Cast-in-place Method

采用明挖现浇法修建隧道具有施工周期短、投资小等优点,是电力管廊的主要施工工法,然而投产后的电力管廊易出现不同程度的渗漏,尤其是在富水地区,渗漏问题更严重影响了通道内的正常使用功能。本文在对福州富水地区某在建电力管廊渗漏现象调查和渗漏原因分析的基础上,作出相应的预防和治理措施,保证了工程的后期建设与运营。

The excavation and cast-in-place tunnel has the advantage of less cost and short construction period, and is the first selected method of cable tunnel construction. In the other hand, the tunnel constructed by excavation and cast-in-place method would have structural leakage that affect the function and service safety, especially in water-rich area. On the basement of the investigation and analyses on the structural leakage inside the tunnels in Fuzhou, this paper points out prevention and treatment measures on leakage, which ensures the construction and operation of the project followed.