实体膨胀管的膨胀力理论计算及试验分析  

Theoretical Calculation and Experimental Analysis for Expansive Force of Entity Expand-able Tube

作　　者：张艳军 ZHANG Yanjun(Building and Surveying and Mapping Engineering College,Shanxi Datong University,Datong Shanxi 037003,China;Datong Key Laboratory of Mine Geological Disaster Prevention and Environmental Restoration,Datong Shanxi 037003,China)

机构地区：[1]山西大同大学建筑与测绘工程学院 [2]矿山地质灾害防治与环境恢复大同市重点实验室

出　　处：《机床与液压》2019年第11期108-111,共4页Machine Tool & Hydraulics

基　　金：大同市重点工业研发计划(2018027);大同市基础研究计划(2017133)

摘　　要：膨胀技术广泛应用于钻井和堵塞领域中,膨胀力是膨胀技术的重要技术参数,也是膨胀工具设计的依据。为了确定膨胀力的计算模型,结合膨胀管的实际受力情况作出基本假设,采用了弹性理论分析的方法对膨胀管进行力学分析,得到了膨胀管膨胀力理论计算模型。对膨胀半锥角为10°的膨胀锥体通过膨胀管后的膨胀力进行理论计算,结果表明:膨胀力的理论值与实测值较为一致,证明了膨胀力理论计算模型的正确性和合理性。膨胀力理论计算模型为膨胀工具的设计提供了依据。Expansion technique is widely used in the field of drilling and blocking, Expansive force is an important technical parameter of expansion technique, also is the basis of expansion tool design. In order to determine the expansive force calculation model, combining with actual stress status of the expandable tube to make basic assumptions, using the elastic mechanics theory to analyze the expandable tube, the expansion force calculation model of the expandable tube was gotten.Making expansion vertebral body which half expansion cone angle was 10 degrees. The expansive force was calculated theoretically by means of the expansive tube, The result show that the theoretical value is roughly identical to the measured value for the expansive force, proving the correctness and rationality of the theoretical calculation model of expansion force. Expansive force calculation model provides theoretical support for the design of the expansion tools.

关 键 词：膨胀管 膨胀锥体 膨胀技术 膨胀力 膨胀角 

分 类 号：TD235.4[矿业工程—矿井建设]