摘要
据优势面分析原理和方法,对金龙山地区斜坡各种结构面所作的优势面分析结果显示:浅层强风化岩体中顺坡向剪切裂隙,是控制浅层顺层滑坡发生发展的滑动优势面;深层弱风化岩体中粘土岩风化软弱夹层、斜坡上段拉张裂隙与斜坡下段顺坡向剪切裂隙三者相组合,是控制深层顺层滑坡发生的滑动优势面。当地受滑动优势面控制的滑坡变形破坏模式有:浅层为蠕滑—拉裂,深层为滑移—弯曲。
In the Jinlongshan region the slope is bedding ones. There are varied structural planes formed by gravitating in the rock mass of the slope. The structural planes are shear rupture of bedding, tension rupture and weak intercalation of weather claystone etc. They would become slide preferred planes of that are bedding slopes, as well as flater, continuitier and with lower strength.According to the theory and method of preferred planes and analysis varied structural planes of the slope in the Jinlongshan region, the conclusion follows :1.The slide preferred plane is composed of shear rupture of the bedding slope in the shallow-intense weathered rock mass. It will control formation of the shallow-bedding landslide.2.The slide preferred plane in the deepweak weathered rock mass is composed of tension rupture in the upper slope, shear rupture in the lower slope and weak intercalation of weather clay-stone. It will control formation of the deep-bedding landslide.Deformation fracture model of Jinlongshan landslide is creep slide-tension in the shallow rock mass and gliding-flexural in the deep rock mass.
出处
《山地研究》
CSCD
1991年第4期218-224,共7页
关键词
斜坡
滑动
优势面
金龙山地区
Jnlongshan, slope, slide preferred plane, structural plane
