摘要
从机械、水力联合破岩时岩石所处的特定力学条件入手,建立了破碎岩石的基本力学模型;分析了联合破岩时岩石裂纹形成与扩展的条件;导出了岩石裂纹扩展的最可能方向,并通过实验进行了验证;得出了实验条件下射流的最佳喷射角为30°左右。
From the special conditions of combined rock breakage of mechanical teech and water jet. the basic rock breakage mechanics models have been found, the forming and expanding conditions of cracks have been analysed and the spreading orientation of rock cracks has been known The results are proven by experiments. The best jet angle is about 30 degree in the experiments.
出处
《江汉石油学院学报》
CSCD
北大核心
1993年第4期53-57,共5页
Journal of Jianghan Petroleum Institute
关键词
应力分析
钻井
岩石破裂
drilling
rocks
stress analysis
[mechanics model]
rock rupture
[jet angle]
