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阎王鼻子水库工程规模虽小，但功能齐全，地质情况复杂，现就施工中应用的几项技术介绍如下1预裂爆破技术1．1左、右岸坝被地质概况右岸坝坡山高陡峻，最陡处近于直立，地层为元古界蓟县系雾迷山组含胜石条带的白云岩，岩体极限抗压强度为40～60MPa，属于中等或较高强度岩体．
Yan Wang nose reservoir project is small in scale, but full-featured, complex geological conditions, is now on the construction of several technologies used in the introduction below 1 presplit blasting technology 1.1 left and right bank dam Geological Survey Right bank slope steep high, the steepest Department of Proterozoic Jishan Wumishan group containing the stone belt of dolomite, the ultimate compressive strength of 40 ~ 60MPa, belong to the medium or higher strength rock.