Back regression analysis on initial geostress field of Wendeng Pumped storage power station
Initial geostress is indispensable to the design and the construction of rock engineering. Based on the measured data of geostress and engineering-geological conditions in the region of Wendeng Pumped storage power station, a geological model is developed to express the physiognomy of the research area and rock mass structure. The established 3D simplified geological model is calculated by Fast Lagrangian Analysis for Continuum of FLAC3D. A multivariate regression model is established between the actually measured and corresponding calculated results of geostresses. According to multiple regression analysis, the optimum regression coefficient can be received. Through the comparison between computed and measured geostress values of measuring points, found that they are similar in values and directions, which suggests the accuracy and reasonability of the geostress field. The results offer for reasonable geostress field for excavating simulation and analysis on stability of the underground workshop of Wendeng Pumped storage power station.
Ning Liu Chunsheng Zhang
Hydrochina Huadong Engineering Corporation, Hangzhou, China
国际会议
The Fifth International Symposium on In-situ Rock Stress(第五届国际岩石应力研讨会)
北京
英文
545-548
2010-08-25（万方平台首次上网日期，不代表论文的发表时间）