气动潜孔锤跟管钻进技术在岩土工程勘察施工中的应用  

Application of Pneumatic DTH Hammer Drilling with Casing in the Geotechnical Engineering Investigation

作　　者：丁晓庆 何龙飞 

机构地区：[1]中船勘察设计研究院有限公司,上海200063

出　　处：《探矿工程（岩土钻掘工程）》2015年第1期17-21,共5页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：以渤船重工新型总装生产线工程岩土工程勘察项目为依托,应用KG940A型高风压履带式潜孔钻车﹑采用气动潜孔锤跟管钻进工艺,结合空气正循环排渣方式,摸索总结出一套针对复杂破碎覆盖层的干式成孔新方法,钻进效率及钻孔质量显著提高,为岩土工程勘察勘探孔施工增添了一种新的思路。Relying on the geotechnical engineering investigation project for a new assembly line of Bohai Shipbuilding Heavy Industry Co. , Ltd. , by the application of KG940A high air pressure and crawler DTH drill and the use of pneumatic DTH drilling with casing combined with air positive circulation slag discharging, a set of new methods of dry-boring is explored according to complex broken overburden layer, which makes significant improvement in drilling efficiency and drilling quality.

关 键 词：高风压 潜孔锤 冲击器 偏心钻头 空压机 

分 类 号：P634.5[天文地球—地质矿产勘探]