煤炭工程 ›› 2022, Vol. 54 ›› Issue (12): 142-147.doi: 10.11799/ce202212025

• 研究探讨 • 上一篇    下一篇

基于钻进模拟系统的岩层结构振动反馈信息试验研究

张宏伟   

  1. 中煤陕西榆林化工能源有限公司
  • 收稿日期:2022-05-17 修回日期:2022-09-15 出版日期:2022-12-14 发布日期:2023-02-06
  • 通讯作者: 张宏伟 E-mail:zhw123022@163.com

Experimental study on feedback information of rock structure vibration based on drilling simulation system

zhang hongwei   

  • Received:2022-05-17 Revised:2022-09-15 Online:2022-12-14 Published:2023-02-06
  • Contact: zhang hongwei E-mail:zhw123022@163.com

摘要: 解决顶板问题离不开对顶板岩层结构的窥视勘探,基于多参数多角度识别顶板结构的钻进模拟系统对不同特征岩石进行钻进模拟试验。研究分析了钻孔破岩过程中的主要影响因素和钻进过程中的能量损耗问题,推导出了岩石的单位体积破碎比功值,并提出以岩石的抗压强度作为识别参数进行拟合的方法,通过模拟试验探究了各钻探参数之间的定性关系以及单位体积的破碎比功值η与抗压强度的关系。

关键词: 煤层顶板, 钻进设备, 抗压强度, 岩石力学性质

Abstract: The solution to the roof problem cannot be separated from the peep exploration of the roof rock structure. Based on the drilling simulation system with multi-parameter and multi-angle identification of roof structure, this paper conducts drilling simulation tests on different characteristic rocks. The main influencing factors in the process of drilling and rock breaking and the energy loss in the process of drilling were studied and analyzed. The specific work of rock breaking per unit volume was deduced, and the method of fitting with the compressive strength of rock as the identification parameter was proposed. The qualitative relationship between the drilling parameters and the relationship between the specific work of rock breaking per unit volume η and the compressive strength were explored through the simulation test.

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