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对小型水利水电工程隧洞塌方原因进行详细的分析,并对塌方分类、预防和处理措施作了详细论述。针对隧洞施工中发生的大塌方问题,提出了“超前临时支撑法”施工处理措施,且对该施工处理技术进行简要概述。
The causes of tunnel collapse in small-scale water conservancy and hydropower projects are analyzed in detail, and the classification, prevention and treatment measures of landslides are discussed in detail. Aiming at the problem of large landslide occurred in the tunnel construction, the construction treatment measures of “advanced temporary support method” are put forward, and a brief overview of the construction treatment technology is given.