水平定向穿越刚度绞盘回拖力的计算方法  

Research on pullback force calculation method considering effect of stiffness winch in horizontal directional drilling

作　　者：刘旭[1] 艾志久[1] 李华宇 胡坤[1] 喻久港[1] LIU Xu;AI Zhijiu;LI Huayu;HU Kun;YU Jiugang(College of Mechanical Engineering, Southwest Petroleum University, Chengdu 610500, China)

机构地区：[1]西南石油大学机电工程学院

出　　处：《武汉大学学报（工学版）》2018年第4期356-362,共7页Engineering Journal of Wuhan University

基　　金：中国石油天然气集团公司“十二五”科技项目(编号:2011B-3303)

摘　　要：回拖力计算是水平定向穿越技术研究的重点之一，可以为穿越工程方案设计、钻机选择等重要环节提供依据．由于受诸多因素影响，实际工程中穿越管道受力非常复杂，弯曲段回拖阻力计算尤为困难，针对这一问题，重点研究了刚度绞盘效应机理，推导出刚度绞盘公式．基于刚度绞盘理论，根据管道在各穿越段孔壁中的受力情况，分别建立管道在各段的力学模型，最终总结出回拖力的计算方法．取一实际穿越工程工况进行计算验证，结果表明这种计算方法准确度高．Pullback force calculation is one of the research emphases of horizontal directional crossing technology. It can provide the basis for the crossing project design, the machine choice as well as many other important links. Due to the effect of many factors, traversing pipeline＇s stress in practical engineering is very complicated and the pullback resistance calculation in curved section is more difficult. To solve this problem, the research of this paper is mainly focused on the stiffness winch effect＇s mechanism and the stiffness winch formula is also deduced. Based on Stiffness winch theory and the Pipeline stress distribution in the wall of holes, pipe sections were established in various mechanical models in this paper. Finally, pullback force calculation methods are summarized. Taking a practical crossing project condition for calculation verification, the results show that the calculation method is with a high accuracy.

关 键 词：水平定向穿越 回拖力 刚度绞盘效应 计算模型 

分 类 号：U175.5[交通运输工程]