一、引言地质力学研究各种地质构造现象时,一方面是鉴定各种构造形迹的力学属性,概括地说,就是鉴别什么形迹是代表压性的,什么形迹是代表张性的和什么形迹是代表扭性的等等,另一方面是研究各种构造形迹在成生发展上的相互联系关系和成生的序次,也就是对构造体系和构造型式进行分析和鉴定。这些工作,对地员力学来说,属于基础性的工 I. INTRODUCTION When geomechanics studies various geological tectonic phenomena, on the one hand it identifies the mechanical properties of various structural features. In a nutshell, it is to identify what kind of trace is representative of stress and what trace is representative of tensility and what trace is On the other hand, it is to study the interrelationship and survival order of all kinds of tectonic patterns in the process of growth and development, that is, to analyze and identify the tectonic system and structure type. These tasks, to the ground mechanics, belong to the basic work