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Wang W.Y.,Research Institute of Architecture Science of Hebei
Applied Mechanics and Materials | Year: 2014

Through studying the field test results of rigid core pile composite foundation, Analyzing dynamic characteristics and dynamic response from peak acceleration and frequency duration, peak velocity and seismic waves. The following conclusion were got: Along with the rising of the upper load, peak acceleration of rigid core pile decrease, The frequency of Rigid core pile was between 6Hz-44Hz, Peak rate in the bottom of core pile have obvious change. © (2014) Trans Tech Publications, Switzerland.


Ding J.-H.,Hebei University | Meng Y.-J.,Hebei University | Wang W.-Y.,Research Institute of Architecture Science of Hebei | Xu C.-J.,Hebei University
Gongcheng Lixue/Engineering Mechanics | Year: 2010

Based on the idea of optimization design of pile, the composite pile with cast-in-place core is formed with soil-cement pile and cast-in-place pile, which utilizes the virtue of cast-in-place pile and rammed soil-cement pile, and avoids the disadvantage of cast-in-place pile and soil-cement pile. Based on increment theory of elastic-plastic mechanics, a mathematical model for composite foundation with cast-in-place core is established by using Druker-Prager yield criterion for concrete, soil-cement and soil. The finite element program is created by the IFEPG. Through an engineering example, the displacement field, stress field and failure mechanism of composite foundation with cast-in-place core are analyzed.


Wang W.-Y.,Research Institute of Architecture Science of Hebei | Zhao T.,Research Institute of Architecture Science of Hebei | Meng Y.-J.,Hebei University
Gongcheng Lixue/Engineering Mechanics | Year: 2012

Through CFG pile composite foundation dynamic test, a test model was built by using finite element analysis software. The analyses were made for the horizontal acceleration, vertical acceleration, horizontal displacement, vertical displacement and stress, which were dynamic response about the same position different depth and the same depth different locations. The analysis results of the dynamic response were in good agreement with the test results. The factors of dynamic response were studied by numerical simulation. Compared with the dynamic response results of natural foundation, we obtained the conclusions in guiding the significance. A basis is supplied for load bearing capacity, deformation and dynamic characteristics of a CFG pile composite foundation.


Wang W.Y.,Research Institute of Architecture Science of Hebei | Zhao T.,Hebei Built Research Technology Co.
Advanced Materials Research | Year: 2013

The numerical analysis model about pile-raft foundation was bulited by using finite element analysis software.The raft settlement, pile-top counterforce and soil counter force were analyzed by changing the thickness of raft.The thickness were 0.15m,0.20m,0.25m and 0.30m. It was said that it could effectively reduce the raft uneven settlement and realize the redistribution of the pile and soil counterforce by increasing raft thickness.After changing the pile length and the raft thickness The rule of raft settlement were analyzed. After the pile length and thickness of optimization,it was good to control settlement of the pile raft foundation. © (2013) Trans Tech Publications, Switzerland.


Wang W.-Y.,Research Institute of Architecture Science of Hebei | Zhao T.,Research Institute of Architecture Science of Hebei | Ding J.-H.,Hebei University
Gongcheng Lixue/Engineering Mechanics | Year: 2011

Dynamic property experiments of full scale rammed soil-cement pile composite foundation are conducted by means of simulating natural earthquake through blast earthquake. With no load applied, the dynamic characteristics and time-history responses of natural foundation and rammed soil-cement pile composite foundation are analyzed firstly. Then the dynamic characteristics and time-history responses of single pile and group-piles rammed soil-cement pile composite foundation are analyzed under static load and explosions respectively. The horizontal displacement and the peak acceleration of single-pile and group-piles composite foundation under blast earthquake action are studied, as well as the variation frequencies under different load conditions. This research provides references for the later study of bearing capacity and deformation characteristics of rammed soil-cement pile under dynamic load.

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