IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)
Numerical simulation of regional stress field under complex geological condition
Wang TX; Zheng WH(郑文海); Liang SJ; Wang Tongxu
Conference Name2011 International Conference on Civil Engineering and Transportation, ICCET 2011
Conference DateOCT 14-16, 2011
Conference PlaceJinan, China
Abstractin 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.
KeywordCivil 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
Indexed ByEI
Document Type会议论文
Corresponding AuthorWang 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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