摘要
采用地质力学模拟方法 ,再现了铜街子水电站浅生时效构造的形成演化过程。研究表明 ,它是区域性剥蚀卸荷过程中因岩体中残余应变能释放、时效变形而在浅部岩体中形成的一种垂向卸荷型变形破裂迹象。
During geologic investigation for Tongjiezi damsite on Dadu River in China, a typical kind of epigenetic time dependent structure was discovered, which was different from both general geologic structures and superficial structures. The study indicates that it originated from time dependent deformation and releasing of residual strain energy in rockmasses at shallow depth in the course of overburden unloading caused by regional erosion. A geomechanical model test was conducted to study and verify the formation mechanism and evolution process of this structure. The model test and its results are described in detail in this paper.
出处
《山地学报》
CSCD
2000年第2期171-176,共6页
Mountain Research
基金
国家自然科学(青年)基金资助项目!( 4960 2 0 4 0 )的部分研究成果
关键词
浅生时效构造
物理模拟
地质力学模拟
Epigenetic time_dependent structures
physical modeling
tongjiezi hydroelectric station
