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土石坝在运行期,发生坝体塌陷是一种常见的渗透破坏现象。既可能是快速溃坝前的危险征兆,也可能是局部渗透破坏的病兆,必须及时修补,才不至于导致溃坝。本文通过对玉马水库2001年上游坝坡塌陷发生的先决条件、塌陷形成的内因和外因等综合分析,为大坝渗流安全、坝体稳定及大坝运行安全提供分析依据。
Embankment dam in operation, the occurrence of dam collapse is a common phenomenon of infiltration and destruction. It may not only be a sign of danger before the rapid dam collapse, but also a symptom of local infiltration and destruction. It must be promptly repaired so as not to cause dam break. Based on the comprehensive analysis of the pre - conditions of the collapse of the upper reaches of Yuma Reservoir in 2001, the internal and external causes of collapse, this paper provides the basis for the dam seepage safety, dam stability and dam operation safety.