黏土心墙坝汛期施工防护设计可靠度分析

Reliability analysis on construction protection design of clay core dam during flood season

黏土心墙坝是目前应用最广的坝型之一,然而汛期降雨作用对黏土心墙影响较大,为此设计了一种土石坝心墙汛期施工防护措施,并通过现场试验、室内试验对其可靠性进行了研究,结果表明,不同强度降雨条件下,有防护措施的黏土心墙含水率均明显低于未加防护措施黏土心墙,说明设计的心墙汛期施工防护措施是可行的,相关工程经验可供类似工程借鉴。

Clay core dam is one of the most widely used type of dam. However, the rainfall in flood season has a greater influence on clay core wall. Therefore, a protection measures for earth rock dam construction in flood season had been designed, and the reliability was studied by field test and laboratory test. The results showed that under different strength rainfall conditions, the water moisture content of the clay core wall with protective measures was significantly lower than that of unguarded clay core wall, which indicated that the design of the core wall of flood protection measures for construction was feasible, and relevant engineering experience could provide a reference for similar projects.