摘要
大量查阅中国范围内的岩浆岩、沉积岩和变质岩中的实测地应力资料,采用与霍克(E.Hoek)和布朗(E.T.Brown)同样的回归方法得到不同岩性情况下的回归曲线。同时,根据朱涣春等发表的《不同岩石中的地应力分布》文中回归公式得出的世界范围不同岩性情况下侧压比随深度的变化曲线,并进行了比较分析。得到了较为理想的结果,之所以不同岩性的侧压比随深度有不同的变化规律主要是原因是三大类岩石形成机理各不相同,并进一步讨论了影响侧压比分布的其它因素。
By consulting a vast amount of measured ground stress data of magmatic rocks, sedimentary rocks and metamorphic rocks in China and using the same regressive method as E. Hock and E. T. Brown, the regression curves on different lithologies are got. Meanwhile, according to regression equations in ＂Ground Stresses Distribution on Different Rocks＂ published by ZHU Huan-chuan and others, the worldwide side pressure ratio-dpth curves on different lithologics are got; and a comparison and an analysis is made, obtaining fairly ideal results. The main reason of why different lithology＇s side pressure ratios have different change laws with depths is that the formed mechanisms of the three main kinds of rocks have nothing in common with eacb other; moreover other factors influencing side pressure distribution are further discussed.
出处
《西部探矿工程》
CAS
2006年第6期99-101,共3页
West-China Exploration Engineering
关键词
岩性
地应力
侧压力系数
深度
回归分析
lithology
ground stress
side pressure ratio
depth
regression analysis
