地质构造有限变形几何分析及其应用  

THE GEOMETRICAL ANALYSIS OF THE FINITE DEFORMATION OF THE GEOLOGICAL STRUCTURES AND ITS APPLICATION

作　　者：孟召平[1] 王冲 彭苏萍[1] 贺日兴[1] 杨锡禄[2] 李玉林[2] 

机构地区：[1]中国矿业大学北京研究生部 [2]煤炭科学研究总院西安分院

出　　处：《煤炭学报》1998年第2期119-123,共5页Journal of China Coal Society

摘　　要：地质构造是地质历史时期构造运动作用的结果．在变形过程中，应变和转动同时存在，如何正确地把转动和应变分离是构造分析预测的关键．应用有限变形力学理论，实现了地质构造变形的应变－转动分离，并以平均整旋角的梯度作为基本特征量，选取２个井田构造变形作为实例，研究了地质构造变形转动不协调产生断裂破坏规律，取得了令人满意的结果．The geological structures resulted from tectonic movements in the geological history. Strain and rotation took place at the time of deformation. The key to prediction of structures is how to separate rotation from strain. It was made possible by applying the theory of finite deformation mechanics, and the gradient of mean rotation angle was regarded as a basic characteristic quantity. The rules of producing faults due to uncoordinated rotation in the tectonic rotation were investigated in two mines as examples. Satisfactory results were obtained.

关 键 词：地质构造 有限变形 应变-转动 几何分析 

分 类 号：P628[天文地球—地质矿产勘探] P551[天文地球—地质学]