(1. Key Laboratory of Road and Traffic Engineering of Ministry of Education，Tongji University，Shanghai 201804，China；2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education，Tongji University，Shanghai 200092，China；3. Power China Zhongnan Engineering Corporation，Limited，Changsha，Hunan 410014，China)
Abstract：The second level ship-lift of Goupitan hydropower station is built upon the shale mass which has significant creep properties. In order to ensure the long-term stability and safety，a series of study have been carried out to investigate the creep characteristic of the shale and the long-term deformation of ship-lift foundation. Firstly，the creep model and its parameters are identified according to the results of in-situ rigid bearing plate creep test；Secondly，based on the analysis of model pile loading test results，the stress and deformation characteristics of the pile-rock interface and its ultimate friction resistance can be investigated respectively. Finally，with the help of numerical simulation，the long term settlement of ship-lift based on different types of foundation structure are analyzed and compared，and the pile-raft foundation is optimized as the recommended foundation scheme. The above results not only has a certain reference value for the selection of ship lift base，but also provides evidence for evaluating its long term stability and reserving the reasonable foundation deformation allowance.
徐前卫1，程盼盼1，蔡永昌2，王昭空3. 构皮滩水电站升船机基础页岩蠕变特性及地基处理技术研究[J]. 岩石力学与工程学报, 2016, 35(S2): 4094-4102.
XU Qianwei1，CHENG Panpan1，CAI Yongchang2，WANG Zhaokong3. Study on the shale creep properties of Goupitan hydropower station ship-lift base and its foundation treatment technology. , 2016, 35(S2): 4094-4102.
丁秀丽. 岩体流变特性的试验研究与模型参数辨识[博士学位论文][D]. 武汉：中国科学院武汉岩土力学研究所，2005.(DING Xiuli. Experimental study on rock mass rheological properties and identification for the constitutive model and parameters[Ph. D. Thesis][D]. Wuhan：Institute of Rock and Soil Mechanics，The Chinese Academy of Sciences，2005.(in Chinese))
[2]
孙钧. 岩土材料流变及其工程应用[M]. 北京：中国建筑工业出版社，1999：3-37.(SUN Jun. Rock mass rheological properties and its application in engineering[M]. Beijing：China Architecture andBuilding Press，1993：3-37.(in Chinese))
[3]
GRIGGS DT. Creep of rocks[J]. JournalofGeology，1939，47(2)：225-251.
[4]
ITO H. The phenomenon and examples of rock creep[J]. International Journal of Rock Mechanics and Mining Sciences andGeomechanics，1993，30(3)：693-708.
[5]
FUJII Y，KIYAMA T，ISHIJIMA Y，et al. Circumferential strain behavior during creep tests of brittle rocks[J]. International Journal of Rock Mechanics and Mining Sciences，1999，36(3)：323-337.
[6]
吴创周，石振明，付昱凯，等. 绿片岩各向异性蠕变特性试验研究[J]. 岩石力学与工程学报，2014，33(3)：493-499.(WU Chuangzhou，SHI Zhenming，FU Yukai，etal.Experimental investigationson structural anisotropyon creep of greenschist[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(3)：493-499.(in Chinese))
[7]
牛双建，党元恒，冯文林，等. 损伤破裂砂岩单轴蠕变特性试验研究[J]. 岩土力学，2016，37(5)：1 249-1 258.(NIU Shuangjian，DANG Yuanheng，FENG Weilin，et al. Uniaxial experimental study of creep propertiesof sandstone in damage and fracture states[J]. Rock and Soil Mechanics，2016，37(5)：1 249-1 258.(in Chinese))
[8]
WONGRHC，LINP，TANGCA，et al. Creeping damage around an opening in rock-like material containing non-persistent joints[J]. Engineering Fracture Mechanics，2002，69(17)：2015-2017.
[9]
杨圣奇，徐卫亚，杨松林. 龙滩水电站泥板岩剪切流变力学特性研究[J]. 岩土力学，2007，28(5)：895-902.(YANG Shengqi，XU Weiya，YANG Songlin. Investigation on shear rheological mechanical properties of shale in Longtan hydropower project[J]. Rock and Soil Mechanics，2007，28(5)：895-902.(in Chinese))
[10]
黄 明，刘新荣. 三峡库区泥质粉砂岩非线性蠕变模型辨识[J]. 岩石力学与工程学报，2011，30(增2)：3 804-3 810.(HUANG Ming，LIU Xinrong. Research on nonlinear creep model identification ofsiltite in three gorges reservoir area[J].Chinese Journal of Rock Mechanics and Engineering，2011，30(Supp.2)：3 804-3 810.(in Chinese))
[11]
曹 平，郑欣平，李 娜，等. 深部斜长角闪岩流变试验及模型研究[J]. 石力学与工程学报，2012，31(增1)：3 015-3 021.(CAO Ping，ZHENG Xinping，LI Na，etal. Experiment and model study of rheologicalcharacteristics for deep amphibolite[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：3 015-3 021.(in Chinese))
[12]
熊良宵，虞利军，杨昌斌. 硬性结构面的剪切流变模型及试验数值分析[J]. 岩石力学与工程学报，2015，34(增1)：2894-2899. (XIONG Liangxiao，YU Lijun，YANG Changbin. Shear rheological model for hard structural surface and test numerical analysis[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(Supp.1)：2894-2899.(in Chinese))
[13]
杨文东，张强勇. 刚性承压板下深部岩体压缩蠕变参数反演[J]. 岩土力学，2009，30(3)，762-768.(YANG Wendong，ZHANG Qiangyong. Inversion of compression creep parameters of deep rock under rigid bearing plate[J]. Rock and Soil Mechanics，2009，30(3)，762-768.(in Chinese))
2016, Vol. 35 
