The material of the main dam shuck is mainly the local sandy gravel. The clay core and the asphalt concrete core were compared in the choosing of seepage prevention type.
拦河主坝坝壳以当地材料砂砾石为主，防渗心墙比较了粘土心墙、沥青混凝土心墙和斜墙型式。
On the basis of examining features of varied seepage prevention structures of RCC dam, the application of seepage prevention structure with asphalt concrete is mainly discussed.
目前在土石坝中已经被广泛的采用，主要介绍了土工膜的防渗形式及防渗结构，根据土石坝不同的情况可因地制宜，灵活选择应用。
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