The Numerical Simulation Study Of The Loess Slope Dynamic Response Caused By The Construction Inspires

With the development of Chinese railway construction , Zhengzhou to Xi'an passenger career railway , there is a large number of high Slope, for the higher require of the high-speed railway subground , it is necessary to treat it ,now days it is more popular to use the methods of dynamic compaction and lime-soil compaction piles, occure Construction source.In the artificial slope cutting and piling action, there is a large slump near the place Lv Jia Ya Tunnel, it cause the completion delay, economic losses even may brought personal injury and death. It has been studied and received more satisfied result in the field of dynamic response which caused by natural earthquakes ,but for artificial earthquake, especially the use of piling , it is little research using the piling . So the research on the vibrate to the slope is more practical significance.It is impossible to use the Analytic Solution to solve the Loess Slope dynamic response caused by the Pile driver , because of the complex terrain and the nonlinear material. But the numerical simulation method can solve it . numerical simulation impacted by the model size, boundary conditions, mesh size, the initial stress, material parameters, the source characteristics, and so on .in my paper, the model is as same as Lvjiaya tunnel entrance loess slope, ZhengXi higher railway. Using finite element method for numerical simulation. And compare with the test data from SWS surface wave machine.Using the real slope size loess parameters and Racker wave , the wave is as same as the frequency to the experiment, from the simulation study, we can see it has amplification phenomenon in the place of the slope peak , the simulation results is consist with the experiment data...