内力线定性描绘应力场方法及其在地质构造研究中的应用

为了简化地质构造力学分析,本文探讨了用内力线来描绘应力场的方法,仿照用磁力线描绘磁场的做法,约定以从外力作用点,支承点等处发出的一族主应力迹线为代表内力传递路径的“内力线”,根据弹性理论绘制了部分简单应力场的内力线图,阐述了以简单应力场内力线图为基础绘制复杂应力场内力线图并对之进行分析的方法,同时,文中还对这一方法在山字型构造体系和断裂等板内构造应力场分析,隐伏或未知构及地质的推测,地震预报等方面的应用做了尝试。

The Method Using Endogenetic Force Lines in the Qualitative Description of the Stress Fields and Its Application in the Study of Geological Struc-ture

For the sake of simplifying the analysis of geological structural mechanics, the method using endogenetic force lines in the description of the stress fields is advanced in this paper. Follow the example of the magnetic fields described by the magnetic lines, a group of main stress lines transmitted from the effect point and support point of the external force are appointed to be the endogenetic lines representing the transfer paths of the endogenetic force, the partial maps of endogenetic lines of simple stress fields are drawn in the light of the elastic theory, and the way that draws the complex maps of the endogenetic lines of the stress fields basing on the simple maps of the endogenetic lines of the stress fields are elaborated. Its application on the analysis of stress fields of the intraplate structure such as epsilontype structure system and the faults, the supposition of concealed or unknown structures and geological bodies and the seismic forecast are carried into practice.