Knowledge Management System of Institue of Mechanics, CAS
| Numerical simulation of regional stress field under complex geological condition | |
| Wang TX; Zheng WH(郑文海); Liang SJ; Wang Tongxu | |
| Source Publication | ADVANCES IN CIVIL ENGINEERING |
| 2011 | |
| Pages | 531-536 |
| Conference Name | 2011 International Conference on Civil Engineering and Transportation, ICCET 2011 |
| Conference Date | OCT 14-16, 2011 |
| Conference Place | Jinan, China |
| Abstract | in this paper ,the geostress field of a large area complicated in geological structures was inverted with the stress data of a few measured points by using FLAC3D numerical stimulation and regression analysis. Two types of models were built. One type is a big model without geological structures, which considered the influence of layer thickness, lithology, stratigraphic dip and ground surface fluctuation first, and then corrected the simulation results according to the measured data, and finally got the geostress field without regional structures by regression analysis. The other type is small regional structure models, which paid attention to the influence of depth, fault type and fault throw, or fold type and fold amplitude, and gained the influence range and coefficients of each geological structure to the geostress field. At last, the results of two types were integrated together, and the large area geostress field under complex geological condition was got. According to this method in allusion to a specific example, the principal stress isoline and vector horizontal projection of coal seam roof including three faults and one fold were obtained, which could analyze the stress magnitude and direction. The method above can solve the problem of how to use the stress data of a few measured points to gain a wide range geostress field under complex geological condition, which could also promote the study of geostress field inversion and have certain engineering application value. |
| Keyword | Civil Engineering Coal Deposits Lithology Regression Analysis Statistics Stratigraphy Coal Seams Complex Geological Condition Complex Structure Engineering Applications Fault Types Geo-stress Field Geological Structures Ground Surfaces Layer Thickness Measured Data Measured Points Numerical Stimulations Principal Stress Regional Stress Field Regional Structure Stress Magnitude Surface Fluctuation |
| Department | LHO |
| ISBN | 978-3-03785-242-2 |
| URL | 查看原文 |
| Indexed By | EI |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46850 |
| Collection | 水动力学与海洋工程重点实验室(2009-2011) |
| Corresponding Author | Wang Tongxu |
| Recommended Citation GB/T 7714 | Wang TX,Zheng WH,Liang SJ,et al. Numerical simulation of regional stress field under complex geological condition[C]ADVANCES IN CIVIL ENGINEERING,2011:531-536. |
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