(1. Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources，Yangtze River Scientific
Research Institute，Wuhan，Hubei 430010，China；2. Faculty of Engineering，China University of Geosciences，
Wuhan，Hubei 430074，China)
Abstract：Based on data mining and feature extracting of the source data of the in-situ stress field?s characters，and combined with the technology of multi-source information integration，the analytical method of multi-source information integration for in-situ stress field is proposed. And the method is organized by three gradational steps：the first time of multi-source information integration for the source data of the in-situ stress field?s characters→calculation of multi-source information integration→the second time of integration，feedback information integration. The calculation of multi-source information integrationis is carried out combining with uniform design and hybrid algorithm of simulated annealing and particle swarm optimization. This method is applied to simulate the in-situ stress field of Baihetan hydropower station，and the calculated results are consentaneous with the testing results. Meanwhile，the rock-core disking phenomenon when drilling and spalling phenomenon in the testing tunnel during excavation is compared with calculated results. It is shown that the proposed analytical method of multi-source information integration for in-situ stress field from the two sides of stress?s magnitude and azimuth，is reasonable and practicable.
[1] 刘允芳. 岩体地应力与工程建设[M]. 武汉：湖北科学技术出版社出版，2000：244–246.(LIU Yunfang. Geostress and engineering construction[M]. Wuhan：Hubei Science and Technology Press，2000：244–246.(in Chinese))
[2] 赵 冰，盛国刚，李 宁. 位移反分析的有限元法及其工程应用[J]. 岩石力学与工程学报，2004，23(7)：1 146–1 149.(ZHAO Bing，SHENG Guogang，LI Ning. Back analysis method based on finite element method of lines and its application in engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2004，27(7)：1 146– 1 149.(in Chinese))
[3] 张有天，胡惠昌. 地应力场趋势分析[J]. 水利学报，1984，(4)：31–38.(ZHANG Youtian，HU Huichang. Analysis of in-situ stress trend[J]. Journal of Hydraulic Engineering，1984，(4)：31–38.(in Chinese))
[4] 薛玺成，王大年，王 伟. 岩石力学新进展[M]. 沈阳：东北工学院出版社，1989：241–256.(XUE Xicheng，WANG Danian，WANG Wei. Current progress of rock mechanics[M]. Shenyang：Northeast University of Technology Press，1989：241–256. (in Chinese))
[5] 孔广亚，蔡美峰，朱建明. 应力函数法在某金矿地应力场反分析中的应用[J]. 沈阳黄金学院学报，1996，15(3)：215–220.(KONG Guangya，CAI Meifeng，ZHU Jianming. The application of stress function method in inverse analysis of rock stress in a gold mine[J]. Journal of Shenyang Institute of Gold Technology，1996，15(3)：215–220.(in Chinese))
[6] 金伟良，喻军华，邹道勤. 分析初始地应力场的边界位移法[J]. 土木工程学报，2003，36(10)：72–75.(JIN Weiliang，YU Junhua，ZOU Daoqin. A new method of simulating initial ground stress field in high slope[J]. China Civil Engineering Journal，2003，36(10)：72–75.(in Chinese))
[7] 喻军华，金伟良，邹道勤. 分析初始地应力场的位移函数法[J]. 岩土力学，2003，24(3)：417–419.(YU Junhua，JIN Weiliang，ZOU Daoqin. Displacement function method for analyzing initial earth stress[J]. Rock and Soil Mechanics，2003，24(3)：417–419.(in Chinese))
[8] 胡 斌，冯夏庭，黄小华，等. 龙滩水电站左岸边坡区初始地应力场反演回归分析[J]. 岩石力学与工程学报，2005，24(22)：4 055–4 064.(HU Bin，FENG Xiating，HUANG Xiaohua，et al. Regression analysis of geostress field for left bank high slope region at Longtan hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(22)：4 055–4 064.(in Chinese))
[9] 李永松，尹健民，艾 凯，等. 地应力回归分析方法与工程应用[J]. 长江科学院院报，2006，23(4)：46–50.(LI Yongsong，YIN Jianmin，AI Kai，et al. Geostress regression analysis method and engineering application[J]. Journal of Yangtze River Scientific Research Institute，2006，23(4)：46–50.(in Chinese))
[10] 蒋中明，徐卫亚. 三维初始地应力场反分析的径向基函数法[J]. 岩土力学，2002，23(6)：737–741.(JIANG Zhongming，XU Weiya. 3D back-analysis of initial ground stress based on ANN-RBF[J]. Rock and Soil Mechanics，2002，23(6)：737–741.(in Chinese))
[11] 戚 蓝，崔 溦，熊开智，等. 灰色理论在地应力场分析中的应用[J]. 岩石力学与工程学报，2002，21(10)：1 547–1 550.(QI Lan，CUI Wei，XIONG Kaizhi，et al. Application of grey theory to analysis of in-situ stress field[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(10)：1 547–1 550.(in Chinese))
[12] 蒋中明，徐卫亚，邵建富. 基于人工神经网络的初始地应力场三维反分析[J]. 河海大学学报：自然科学版，2002，30(3)：52–56.(JIANG Zhongming，XU Weiyan，SHAO Jianfu. ANN-based 3D back analysis of initial stress in rock masses[J]. Journal of Hohai University：Natural Sciences，2002，30(3)：52–56.(in Chinese))
[13] 石敦敦，傅永华，朱 暾，等. 人工神经网络结合遗传算法反演岩体初始地应力的研究[J]. 武汉大学学报：工学版，2005，38(2)：73–76.(SHI Dundun，FU Yonghua，ZHU Tun，et al. The combination of artificial neural network and genetic algorithm applied to inversion analysis of initial stress fields in rock masses[J]. Engineering Journal of Wuhan University，2005，38(2)：73–76.(in Chinese))
[14] 黄书岭，张 勇，丁秀丽，等. 大型地下厂房区域地应力多源信息融合分析方法及工程应用[J]. 岩土力学，2003，24(3)：417–419. (HUANG Shuling，ZHANG Yong，DING Xiuli，et al. Analytical methods of multi-source information fusion for in-situ stress field of large underground power house region and its application[J]. Rock and Soil Mechanics，2003，24(3)：417–419.(in Chinese))
[15] 韩崇昭. 信息集成理论与应用[J]. 中国基础科学，2000，(7)：14–18.(HAN Chongzhao. Information integration theory and its application[J]. China Basic Science，2000，(7)：14–18.(in Chinese))
[16] 韩崇昭，朱洪艳. 多传感信息集成与自动化[J]. 自动化学报，2002，28(增)：117–124.(HAN Chongzhao，ZHU Hongyan. Muti-sensor information integration and automation[J]. Acta Automatica Sinica，2002，28(Supp.)：117–124.(in Chinese))
[17] 金长宇，冯夏庭，张春生. 白鹤滩水电站初始地应力场研究分析[J].岩土力学，2010，31(3)：845–850.(JIN Changyu，FENG Xiating，ZHANG Chunsheng. Research on initial stress field of Baihetan hydropower station[J]. Rock and Soil Mechanics，2010，31(3)：845–850.(in Chinese))
[18] 中华人民共和国国家标准编写组. GB50218—94工程岩体分级标准[S]. 北京：中国计划出社，1995.(The National Standards Compilation Group of People?s Republic of China. GB50218—94 Standard for engineering classification of rock masses[S]. Beijing：China Planning Press，1995.(in Chinese))
[19] GRIME S，DURRANT-WHYTE H F. Data integration in decentralized sensor networks[J]. Control Engineering Practice，1994，2(5)：849–863.
2012, Vol. 31 
