岩土工程学报2024，Vol.46Issue(7)：1509-1515,7.DOI:10.11779/CJGE20230477
露天潜孔钻机随钻测量系统研发与应用研究
Development and application of MWD system for DTH drilling rig
侯仕军 1丁伟捷 1田帅康 1梁书锋 1刘殿书 1郭大超2
作者信息
- 1. 中国矿业大学(北京)力学与建筑工程学院,北京 100083
- 2. 成远矿业开发股份有限公司,辽宁 辽阳 111299
- 折叠
摘要
Abstract
The researches on the measurement while drilling(MWD)technology in the field of open-pit mining are still in the early stage,and the development of MWD systems is the primary task to realize the application of MWD technology in the mining engineering industry.Based on the working principles of the TAIYE-390-Ⅱ hydraulic DTH drilling rig,the MWD parameters and a universal measurement method are respectively determined,and the corresponding measurement devices are developed.The devices mainly include a data acquisition system,a data conversion system,and a data processing system,which can realize the real-time and accurate measurement,acquisition,calculation,storage,display and remote transmission of parameters such as drilling time,depth,penetration rate,axial force,rotation torque,rotation speed,percussive air pressure and air quantity.With the MWD data from a limestone mine,a data integration method that can reflect lithological variations is proposed,and the feasibility of MWD in the structural identification of rock mass is analyzed through the borehole imaging experiments.The results indicate that the penetration rate and rotation torque exhibit the highest sensitivity to rock mass structures.The air quantity and air pressure are more sensitive only when drilling fragmented rock masses with cavities,while the axial force and rotation speed have limited influences on the structural identification of rock mass.The research findings are of important theoretical significance and practical value in the development of MWD systems for DTH drilling rigs and lithological identification.关键词
随钻测量/潜孔钻机/系统研发/岩体结构/炮孔成像Key words
measurement while drilling/down-the-hole drilling rig/system development/rock mass structure/borehole imaging分类
建筑与水利引用本文复制引用
侯仕军,丁伟捷,田帅康,梁书锋,刘殿书,郭大超..露天潜孔钻机随钻测量系统研发与应用研究[J].岩土工程学报,2024,46(7):1509-1515,7.
