A Study of Causes of High Ground Stress Release in the Area of a Hydropower Station Dam
Received date: 2008-12-22
Revised date: 2009-04-25
Online published: 2009-06-10
Based on statistical analysis of disced rock cores and rockburst about rock mass in exploration adit at the dam site where high ground stressis surrounded the causes of high ground stress are discussed in many respects, combined with characteristics of ground stress field, including the power source condition which is the regional tectonic setting and geological conditions, power storage conditions which is characteristic of lithology and structure of rock mass, power transformation and adjustment which is late reformation of rock mass. It is considered that high ground stress release is synthetical result caused by factors mentioned above. It provides the powerful reference for the prediction and control of rockburst in the excavation of underground powerhouse.
DIAO Jing , DIAO Ji-Hua , BANG She-Qin , CHEN Jin-Zhong , HUANG He-Qing- . A Study of Causes of High Ground Stress Release in the Area of a Hydropower Station Dam[J]. Advances in Earth Science, 2009 , 24(6) : 636 -642 . DOI: 10.11867/j.issn.1001-8166.2009.06.0636
[1] Zhou Hongwei, Xie Heping, Zuo Jianping. Developments in researches on mechanical behaviors of rocks under the conditong of high ground pressure in the depts[J].Advances in Mechanics,2005, 35(1):91-99.[周宏伟,谢和平,左建平.深部高地应力下岩石力学行为研究进展[J]. 力学进展,2005,35(1):91-99.]
[2] Adams G D, Jager A J. Petrroscopic observations of rock fracturing ahead of stope faces in deep-level gold mines[J].Journal of the South Africa Institute of Mining and Metallurgy, 1980,(7):204-209.
[3] Shemyakin E I, Fisenko G L, Kurlenya M V, et al. Zonal disintegration of rocks around underground workings, PartⅡ: Rock fractures simulated in equivalent materials[J].Journal of Mining Science, 1986, 22 (4):223-232.
[4] Li Yingjie, Pan Yishan, Zhang Mengtao. Time effect analysis of zonal disintegration of high institu stress surrounding rock and study of relevant parameters based on the creep instability theory[J].Journal of Geomechanics,2006,12(2): 252-260.[李英杰,潘一山,章梦涛.高地应力围岩分区碎裂化时间效应分析和相关参数研究[J].地质力学学报,2006,12(2): 252-260.]
[5] Feng Xiating，Zhao Hongbo. Prediction of rockburst using support vector machine[J].Journal of Northeastern University(Natural Science),2002,23(1):57-59.[冯夏庭,赵洪波.岩爆预测的支持向量机[J]. 东北大学报:自然科学版, 2002, 23(1):57-59.]
[6] Xu Linsheng，Wang Lansheng. Study on the mechanism of rockburst[J].Journal of Chongqing University (Natural Science Edition)，2001，24(2):115-117.[徐林生,王兰生.岩爆形成机制研究[J].重庆大学院报:自然科学版，2001，24(2):115-117.]
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