煤田地质与勘探Issue(2)：90-93,4.DOI:10.3969/j.issn.1001-1986.2013.02.022
深孔绳索取心钻杆抗拉脱能力有限元分析
Finite element method of resistance to pull-off for deep hole wire-line drill rod
摘要
Abstract
Aiming at the problems such as pall-off of joint thread and breaking of rod, based on non-linear finite element method, the analysis and calculation of resistance to pull-off for deep hole wire-line drill rod with several types of thread under different working conditions was carried out by using finite element software. Results showed that barb trapezoidal thread performed best and buttress thread was better under the same thread taper; with smaller thread taper, the pull-off force showed upward trend after the fist under the same type of thread; with larger nega-tive angle, its resistance to thread pull-off was increased; compared with tension, pull-off force decreased slightly under the tension and torsion.关键词
深孔/绳索取心钻杆/螺纹/非线性有限元法/拉脱Key words
deep hole/wire-line drill rod/thread/non-linear finite element method/pull-off分类
天文与地球科学引用本文复制引用
梁健,郭宝科,孙建华,张永勤..深孔绳索取心钻杆抗拉脱能力有限元分析[J].煤田地质与勘探,2013,(2):90-93,4.基金项目
国土资源部深部探测技术与实验研究专项项目(SinoProbe-05-06) （SinoProbe-05-06）
国土资源部国土资源大调查地质调查项目(1212011120236) （1212011120236）
