浅析大连开发区南部滨海新区岩溶地区冲击成孔灌注桩施工

岩溶 机械成孔 水下灌注 勘察方法Impact of karst area of Dalian Binhai Development Zone South of bored pile constructionAbstractthe geological environment in karst area of coastal southern Dalian Development Zone complex，is affected by the overlying upper backfill layer and theSinian Ganjingzi group limestone karst，underwater perfusion and mechanical bored pile caused certain difficulty.Control impact of karst area of Dalian Development Zonecoastal southern construction measures and key technique difficulties of pile.Keywords Yan Rong machinery into the perfusion hole underwater survey method