本文依托引汉济渭秦岭出口工程实例，简述了在云母石英片岩及黑河水库影响区等不良水文地质段使用矿研RPD-180CBR多功能快速钻机进行超前水平钻探和超前放水，在直观探取前方地质情况的同时使掌子面形成少水环境，增加了掌子面围岩自稳性，确保了掌子面施工安全，取得了良好的施工进度，为类似工程提供了参考经验。%This paper relies on the example of Yin Han Ji Wei Qinling Mountains export project, describes the use of multi-function drilling rig type RPD-180CBR for advanced horizontal drilling and early drainage in the mica quartz schist, Heihe reservoir area and other adverse hydrogeological section. This method can explore the forward geological condition directly and at the same time make the tunnel face form a less water environment, which increase the tunnel rock stability of tunnel face, ensure construction safety, make the favorable construction progress and provide the reference and experience for similar engineering.
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