1. dam-foundation seepage is mainly of grike seepage, and there is little cave like a string of beads in the local area, suggesting that it is necessary to carry out grouting gallery.
   坝基渗漏以岩溶裂隙性渗漏为主，局部有串珠状小容洞渗漏，建议进行防渗帷幕处理是必要的。

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