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随着我国水电建设的发展,地下工程的规模越来越大,数量越来越多,工程建设过程中遇到的问题也越来越多,越来越复杂。1997年9月在某电站的长探洞中发生了意外事故,这是国内水电工程勘测史上从未发生过的问题,洞内气体检测二氧化碳、甲烷及二氧化硫浓度增高,氧气含量降低,这些气体的异常是事故发生的直接原因。为了配合“水电地下洞室有毒气体的测试评价方法及其安全防护技术”的研究,就地下洞室常
With the development of China’s hydropower construction, the scale of underground engineering is more and more large and increasing in number. The problems encountered in the process of engineering construction are also more and more complicated and complex. In September 1997, an accident occurred in a long tunnel in a power station. This is a problem that has never happened in the history of domestic hydropower engineering surveys. The detection of carbon dioxide, methane and sulfur dioxide in the cave increases the concentration of oxygen and the content of these gases Abnormal is the direct cause of the accident. In line with the “underground gas hydropower underground gas testing and evaluation methods and safety protection technology ”, on the underground cavern often