Numerical Simulation on Forming Dynamics Mechanism and Stress State of Qianning Basin

被引：0
|
作者：
Su, Shengrui [1 ]
Zhang, Ying [1 ]
He, Hujun [2 ]
Wang, Xiaojian [1 ]
机构：
[1] Changan Univ, Sch Geol Engn & Geomat, Xian 710054, Peoples R China
[2] Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China
来源：
VIBRATION, STRUCTURAL ENGINEERING AND MEASUREMENT II, PTS 1-3 | 2012年 / 226-228卷
基金：
中国国家自然科学基金;
关键词：
Qianning Basin; Mechanical Mechanism; Numerical Simulation; ANSYS;
D O I：
10.4028/www.scientific.net/AMM.226-228.1458
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Two-dimensional finite element model of Qianning basin was built on the basis of depth study on geological structure conditions and of rock mechanical properties in Qianning basin, tectonic stress field characteristics of Qianning fault belt and Qianning basin formation mechanism were inversed. The results show that: (1)A remarkable low stress region is come into being in the central part of Qianning basin, the low stress environment in the strike-slip fault zone has a very important control function for the basin formation. (2)in the rock bridge area of secondary fault belt sinistral right order, high stress concentration zone are formed, rock body subject to extrusion, which often forms pushing structure, the surface morphology appears landforms phenomenon such as surface uplift, drum kits etc.
引用
收藏
页码：1458 / +
页数：2
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