Experimental study on large diameter drilling in hard rock annular coring |
| |
| Authors: | Yinzhu WU Guochun YANG Wenchen WANG Changchun Institute of Technology Changchun China College of Construction Engineering Jilin University Changchun China |
| |
| Institution: | [1]Changchun Institute of Technology, Changchun 130021, China [2]College of Construction Engineering, Jilin University, Changchun 130026, China |
| |
| Abstract: | Based on analyzing method of large diameter hard rock drilling at home and abroad, the authors proposed a set of drilling of large diameter hard rock annular coring in low energy consumption, low cost and high efficiency. The prototype of drilling tools was designed and was made. The experimental result of the prototype indicates that this plan and technology are feasible and reach the anticipated object of design. A set of drilling tools has been offered for the constructs of large diameter hard rock coring. |
| |
| Keywords: | large diameter hard rock annular coring drilling |
| 本文献已被 CNKI 维普 等数据库收录！ |
