摘要
从我国环境保护的角度出发,一种新的排水原则———“控制排水”的原则应运而生。在“控制排水”原则下对一标准断面隧道衬砌结构进行了受力分析,分析结果表明,考虑外水荷载时衬砌结构受力与不考虑外水荷载有着明显的不同,只要衬砌背后承受一定的外水压力,衬砌的安全系数就会迅速下降,对衬砌受力极为不利,在保证安全的情况下,衬砌结构最大能承受100m的外水头压力。
In consideration of environment protection of our country, a new kind of principle of controlling drainage has been put forward. A comparative analysis of standard structure static behavior is carried out at the principle of controlling drainage. The result indicates that the lining＇ s stress is different in consideration of external water load and not. Lining＇ s safe coefficient will descend rapidly as soon as the lining has some external water loads which are very disadvantageous for lining＇ s stress. Under the condition of the tunnel＇ s safety, the lining can bear lOOm external water load at most.
出处
《施工技术》
CAS
北大核心
2006年第10期16-18,共3页
Construction Technology
关键词
防水技术
环境
控制排水
外水荷载
waterproof technology
environment
control drainage
external water load
