Design On The Shaking Table Test For Ground Fissure Dynamic Response Under Earthquake

Ground fissures is Fen Wei basin of with a kind of typical geological disasters. For themoment, the causes of ground fissures in Xi’an, activity characteristic, distribution, the plagueincluding mechanism and more thorough, also made many important results. How wouldexpand characteristics, the vibration characteristics, to crack in the rock stress on both sides ofwhat will change under the action of earthquake ground fissures in Xi’an. It is veryimportantc for the ground fissures in the environment of activities of the lifeline project. Therole of strong earthquake fracture mechanics is a response to the research question. However,at present for the research of this aspect or blank. So it has certain theoretical meaning andapplication prospect for developing strong earthquakes in the role of the mechanical responseof cracks and shaking table model test.In this paper,according to a particular ground fissures in Xi’an city in the south of theactual stratigraphic profiles, use a similar role of strong earthquakes and the theory ofvibration table crack mechanical response model test for similar relation design. Find outthe model of soil physical and mechanical parameters. And then, design the model soil boxand the loading system. Finally, through the finite element software testing model, anumerical simulation，verify the vibration table model test the feasibility of the scheme.Andwe got strong earthquakes and the role of crack, acceleration,speed,displacement and shearstress response law of dynamic characteristics,etc.Do preparations for studying strong earthquakes and role of the dynamic response ofcrack shaking table model test.This paper sets the vibration model test design, and the finite element calculation resultsfor the next step and strong earthquakes role of the dynamic response of crack shaking tablemodel test study to lay the foundation. The method and the conclusion of the test, for futuretrials and Fen Wei basin with similar to crack period of linear across the seismic design ofengineering structures provide certain theoretical support and reference value.