摘要
针对乌干达卡鲁玛尾水隧洞9#施工支洞的一次典型塌方事故,对塌方的原因进行了分析,深刻总结了经验教训,提出了隧洞开挖中围岩由V类变IV类时应注意的事项;给出了围岩变更确定支护参数时应考虑的建议上覆较好岩层厚度,可供同类工程借鉴,对预防同类塌方事故的发生具有指导意义。
Based on one typical tunnel collapse accident in Adit-9 of Karuma HPP TRT Project, the article analyzes tunnel collapse causes, summarizes the experiences and lessons, proposes points to note while excavating in Class V to Chass IV surrounding rock, proposes a better overburden rock layer thickness for consideration when confirming the supporting parameters for various surrounding rocks. It will provide reference which can be used for similar type of projects and guidance for avoidance of similar kind of collapse.
出处
《山西水利科技》
2015年第3期1-4,共4页
Shanxi Hydrotechnics
关键词
隧洞塌方
经验教训
超前支护
上覆岩层厚度
卡鲁玛水电站
tunnel collapse
experience and lesson
advance support
burdened rock layer thickness
Karuma Hydropower Project
