煤矿近水平定向钻进钻头侧向力计算与分析  

Calculation and Analysis on Lateral Force of Bit in Mine Horizontal Directional Drilling

作　　者：蒲天一 李克松[1,2] 

机构地区：[1]中煤科工集团重庆研究院,重庆400039 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400039

出　　处：《煤炭工程》2013年第4期71-73,共3页Coal Engineering

基　　金："十二五"国家科技重大专项(2011ZX05041-001-002);中煤科工集团重庆研究院青年创新基金项目(2011QNJJ017)

摘　　要：运用纵横弯曲梁理论建立了近水平定向钻进竖直剖面上钻头侧向力的计算模型,找出了侧向力的影响因素,运用二分法对计算模型进行求解,并对求解结果进行分析,获得了各影响因素与侧向力的关系曲线,为合理选择钻孔参数,综合控制竖直剖面钻孔轨迹提供了理论基础。The timoshenko beam theory was applied to establish a calculation model of the bit lateral force in an vertical section of a horizontal directional drilling. The influence factors of the lateral force were obtained. The dichotomy was applied to the solution of the calculation model and the analysis was conducted on the solution results. A relationship curve between the each influence factor and the lateral force was obtained and could provide theoretical base to the rational selection of the borehole parameters and the comprehensive control of the vertical sectional borehole track.

关 键 词：轨迹控制 侧向力 纵横弯曲梁 二分法 

分 类 号：TD41[矿业工程—矿山机电]