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潜孔跟管钻进技术作为一种逐渐发展成熟起来的新兴技术,在遇复杂地质条件时使用,钻进速度快,成孔效率高,实用方便,避免了钻进过程中塌孔、卡钻、埋钻的情况,减少了钻进过程中事故发生率,同时成本低,成为一种可靠的护壁钻进方式。文章简要介绍了堆石坝边坡锚杆施工的工艺流程,并重点阐述了潜孔锤跟管钻进技术在锚杆钻孔过程中遇复杂易坍塌地层的运用和施工方法。
DTH drilling technology as a gradual development and maturity of emerging technologies in the event of complex geological conditions used, drilling speed, high efficiency of forming holes, practical and convenient, to avoid the process of drilling holes collapse, stuck , Buried drilling situation, reducing the incidence of accidents during drilling, while low cost, as a reliable way to protect the wall. This paper briefly introduces the technological process of rock bolt construction on the slope of rockfill dam, and emphatically expounds the application and construction method of the complex technology of collapsing stratum in the process of rock bolt drilling.