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

doi:10.13722/j.cnki.jrme.2016.0909

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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.

Key words： rock mechanics creep model parametric inversion foundation treatment deformation prediction

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	Articles by authors
	XU Qianwei1
	CHENG Panpan1
	CAI Yongchang2
	WANG Zhaokong3

Cite this article:

XU Qianwei1,CHENG Panpan1,CAI Yongchang2, et al. Study on the shale creep properties of Goupitan hydropower station ship-lift base and its foundation treatment technology[J]. , 2016, 35(S2): 4094-4102.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.0909 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS2/4094

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