地震作用下边坡预应力锚索振动台试验研究

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Abstract the large-scale shaking table model test is adopted for study the behavior associated with earthquake shaking of the prestressed anchor cable retaining the slope. Similarity relation is derived by law of gravitivity similitude and dimension analysis method. Three kinds of seismic waves are inputted to study the dynamic response characters of prestressed anchor cable while the amplitudes of input seismic waves are increased. Axial force of prestressed anchor cable and the acceleration and displacement time history are monitored to study the loss of prestress and axial force of prestressed anchor cable subjected to earthquake shaking. Slope stability is also studied. The results show that loss of axial force and prestress of prestressed anchor cable varies with the change of input seismic wave. The maximum value of prestressing loss is 15.7% and with the increment of the peak value of input seismic waves，the prestresssing loss increased at first and then decreased to the critical value while prestressing loss is no longer occurred. It is proposed that the applied prestress value should be 1.1 to 1.2 times of the designed value of the prestress during seismic design of prestessed cable anchor，which is higher than the value under static conditions.

Key words： slope engineering prestressed anchor cable earthquake shaking table model test

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	Articles by authors
	YE Hailin1
	2
	ZHENG Yingren1
	LI Anhong3
	DU Xiuli4

Cite this article:

YE Hailin1,2,ZHENG Yingren1, et al. SHAKING TABLE TEST STUDIES OF PRESTRESSED ANCHOR CABLE OF SLOPE UNDER EARTHQUAKE[J]. , 2012, 31(S1): 2847-2854.

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https://rockmech.whrsm.ac.cn/EN/Y2012/V31/IS1/2847

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