Ground movement analysis based on stochastic medium theory.
In order to calculate the ground movement induced by displacement piles driven into horizontal layered strata, an axisymmetric model was built and then the vertical and horizontal ground movement functions were deduced using stochastic medium theory. Results show that the vertical ground movement obeys normal distribution function, while the horizontal ground movement is an exponential function. Utilizing field measured data, parameters of these functions can be obtained by back analysis, and an example was employed to verify this model. Result shows that stochastic medium theory is suitable for calculating the ground movement in pile driving, and there is no need to consider the constitutive model of soil or contact between pile and soil. This method is applicable in practice.
School of Civil Engineering, Central South University, Changsha 410075, China.
Meng
M
Fei
Chongqing Education University, Chongqing 400067, China.
Li-chun
LC
Wu
School of Civil Engineering, Central South University, Changsha 410075, China.
Jia-sheng
JS
Zhang
School of Civil Engineering, Central South University, Changsha 410075, China.
Guo-dong
GD
Deng
Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education and National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China.
Zhi-hui
ZH
Ni
D008962:Models, Theoretical; D013269:Stochastic Processes