Reverse Circulation DTH Hammer Drilling Technique

作     者：BO Kun YIN Kun PENG Jianming 

作者机构：College of Construction Engineering Jilin University Changchun 130026 China 

出 版 物：《Global Geology》 (世界地质（英文版）)

年 卷 期：2011年第14卷第4期

页      面：259-264页

学科分类：081801[工学-矿产普查与勘探] 081401[工学-岩土工程] 08[工学] 0818[工学-地质资源与地质工程] 0814[工学-土木工程] 

基　　金：Supported by the Fundamental Research Funds for Jilin University (No. 200903203) 

主　　题：Hollow-through DTH hammer reverse circulation reverse circulation bit simulation 

摘      要：The technical characteristics and operational principal of the reverse circulation DTH hammer drilling technology is integrated introduced in this paper. Using simulation technology to assist the drilling tool design, the optimum designed DTH hammer gets stable performance, and the bit has reverse circulation ability, and further more, it has already developed serial products. The reverse circulation DTH hammer drilling technique has been fully applied in field such as the geological core exploration in complex strata, water well drilling, and large diameter rock embedding piles drilling in hard rock, and obviously, it is achieved favorable economic and social benefits.