Dynamic Analysis Model and Seismic Response of Soil Nailed Wall under Earthquake
Corresponding to the seismic design method of tall-building, the three levels seismic design and two stages design way are proposed for the soil nailed wall. Considering seismic excitation property, soil properties and slope height, sheafing displacement under horizontal excitation, a simplified dynamic analysis model of the soil nailed wall for the slope stability is proposed. Based on the assumptions which the lateral displacement of the stability soil and instability soil are nearly in the phase and the lateral interaction between them is ignored under horizontal excitation, the instability soil and facing arc treated as the study object. Because the facing is flexible, its lateral displacement depends on the lateral displacement of instability soil. The soil nails are served as the elastic supports. Under the condition of horizontal earthquake excitation the equation of vibration response is established, the analytical solutions are obtained for simple harmonic vibration. The soil nail axial force response in the failure surface and the elastic lateral displacement history can be obtained by this method. The method is applied to a case record for illustration of its capability. This method can be used the fast stage seismic design and analysis for the soil nailed wall.
soil nailed wall slope dynamic analysis model seismic performance seismic design
ZHU Yanpeng DONG Jianhua
School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,Gansu,China
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
2208-2213
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）