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		题名	作者	年代	出处	被引量
	1	Time-domain solution for transient dynamic response of a large-diameter thin-walled pipe pile显示文摘The propagation of stress waves in a large-diameter pipe pile for low strain dynamic testing cannot be explained properly by traditional 1D wave theories. A new computational model is established to obtain a wave equation that can describe the dynamic response of a large-diameter thin-walled pipe pile to a transient point load during a low strain integrity test. An analytical solution in the time domain is deduced using the separation of variables and variation of constant methods. The validity of this new solution is verifi ed by an existing analytical solution under free boundary conditions. The results of this time domain solution are also compared with the results of a frequency domain solution and fi eld test data. The comparisons indicate that the new solution agrees well with the results of previous solutions. Parametric studies using the new solution with reference to a case study are also carried out. The results show that the mode number affects the accuracy of the dynamic response. A mode number greater than 10 is required to enable the calculated dynamic responses to be independent of the mode number. The dynamic response is also greatly affected by soil properties. The larger the side resistance, the smaller the displacement response and the smaller the refl ected velocity wave crest. The displacement increases as the stress waves propagate along the pile when the pile shaft is free. The incident waves of displacement and velocity responses of the pile are not the same among different points in the circumferential direction on the pile top. However, the arrival time and peak value of the pile tip refl ected waves are almost the same among different points on the pile top.	Ding Xuanming Liu Hanlong Chu Jian Cheng Ke	2015	Earthquake Engineering and Engineering Vibration2015，14，2：	8
	2	Seismic behavior of batter pile groups embedded in liquefiable soil显示文摘A comparative study of the seismic performance of 2×1 pile groups considering different degrees of batter(0°for vertical,10°and 20°)embedded in single homogeneous liquefiable sand through fully coupled three-dimensional dynamic analyses is presented.The effects of inertial interaction are considered with structures having two different periods.The performance of pile groups is investigated for the fixed and pinned pile to cap connections for both floating and end bearing types of pile groups.Slenderness ratios of piles were also varied to enable a comprehensive understanding.Investigations have been carried out for three earthquake motions having varied dominant frequencies.It is observed that batter pile groups in liquefiable soils provide beneficial effects on piles and superstructure responses for both fixed and pinned head pile to cap connections for long period structures.However,for short period structures,a beneficial effect is most evident for fixed head connection.	J.S.Rajeswari Rajib Sarkar	2021	Earthquake Engineering and Engineering Vibration2021，20，3：	1

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