摘要
运用绘图的方法将边坡岩体中结构面与临空面绘制成构造裂面圆,以分析边坡的稳定性及其变形性质和机理。圆的半径指向表示结构面走向之一,半径上符号方向表示倾向,临空面按其方位、走向绘制于圆外。结构面按其成因和性质分为层面、片理面、裂面、断层四类,并以不同的符号表示。结构面与临空面交角分为小角度相交、大角度相交、反倾三种组合关系。总之,构造裂面圆就是将结构面与临空面的空间关系平面化,通过分析两者的组合关系,分析边坡的稳定性、变形性质和机理。
In order to analyze the stability of slope,the deformation properties and mechanism,the structural fracture plane and free face in rock mass are plotted into a circle of structural fracture surface by drawing method.The radius direction of the circle indicates one of the directions of the structural plane,and the sign direction on the radius indicates the tendency.The free plane is drawn out of the circle according to its orientation and direction.Structural planes can be divided into four categories according to their formation and properties,i.e.bedding,sheets,fissures and faults,which are represented by different symbols.The intersection angle between structural plane and free face can be classified into three combinations including small angle,large angle and reverse-dumping.In short,the spatial relationship between the structural plane and the free face convert to planar relationship with structural fracture circle method.The stability,deformation properties and mechanism of the slope is analyzed by analyzing the combination relationship between the structural fracture plane and the free face.
作者
许建瑞
Xu Jianrui(Shenzhen Geokey Group Co.,Ltd.,Shenzhen 518057,China)
出处
《工程勘察》
2019年第11期29-34,共6页
Geotechnical Investigation & Surveying
基金
深圳市科技研发资金(JSGG20180504170317195)
关键词
构造裂面圆
边坡
结构面
临空面
structural fracture surface circle
slope
structural plan
free face
