Destructive Study Of Shock Loading Pier On The Great Wall

As the world's cultural heritage,Great Wall has a high historical value,scientific and artistic value.In the long-term damaging effects of the natural environment and human activities,a large number of the Great Wall ruins have disappeared in history.Especially distributed in the soil of the Great Wall in Northwest China,the preserved ruins of soil have been riddled with problems,weathering and large-scale collapse and other very serious.Therefore,the protection of the Great Wall of scientific research has been a priority.Taking the Great Wall in Yulin Yuyang District earthen sites e.g.By performing field measurements and access to relevant information,Get the specific size and soil engineering geological conditions of the Great Wall ruins,Great Wall ruins soil and disease characteristics were analyzed.Working through field sampling and indoor test,to determine the physical and mechanical parameters pier.By finite element software,the site of the Great Wall of soil modal analysis,transient analysis,static and dynamic analysis as well as the sensitivity and reliability of correlation analysis.The main results of research made herein are as follows:1.Sort of engineering geological conditions of the Great Wall ruins soil region,and analyzes the characteristics of the disease,and the ruins of the Great Wall of soil causes of disease.2.Through on-site measurements,collect soil samples,measuring the size of the pier,model building,and by doing soil tests to determine the physical and mechanical parameters of the soil of the Great Wall ruins.3.Through theoretical analysis and laboratory data compilation,extract the desired parameters,select nonlinear elastic constitutive relation of soil sites,a finite element model of soil sites.4.Great Wall pier modal analysis,analysis of the impact of the regolith and height of the Great Wall ruins of soil vibration frequency.5.When the Great Wall pier were dynamic process analysis,when you enter a different ground motion process curve,finite element analysis of dynamic response process,the reaction of different ground motion under the pier.6.The reliability analysis is introduced to study the stability of the Great Wall ruins of the soil,the soil on the site of the Great Wall were static and reliability under dynamic action analysis,the probability of failure of the Great Wall ruins of the soil,as well as stability and destruction of the Great Wall pier threshold,density,elastic modulus sensitivity and relevance.