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一、序言在龙门山断裂带测区,沿断裂带南起邓生北至阳平关长约450km,宽约250km范围内,横跨及平行断裂带布设了6条测线,在57个测点取样,以岩体正交异性弹性理论为基础,取岩石中选测矿物的轴面异性弹性参量,用X射线法,测量了岩体中宏观残余应力的水平和铅直三维主应力的大小、方向及最大剪应力的水平分布场,绘出了它们的水平分布等值线和水平主应力线图。且在测区内三个小区的21个大口径深钻孔中,按各小
I. Preface In the measurement area of the Longmen Shan fault zone, there are 6 survey lines laid across and parallel to the fault zone along the fault zone from the north of Dengshengbei to the Yangping up to about 450km and the width of about 250km. At 57 measuring points Based on the orthotropic elastic theory of rock mass, the axial anisotropy elastic parameters of the mineral in the rock are selected and the macro-residual stress level and the magnitude of the vertical three-dimensional principal stress in the rock mass are measured by the X-ray method. And the horizontal distribution of the maximum shear stress field, draw their horizontal distribution contour and horizontal principal stress diagram. And in the survey area three large 21 holes in the deep drilling, according to the small