Dynamic response characteristics of combination supporting structures on bedding rock slope by shaking table experiment and numerical analysis

作者：Guolin Yang; Quan Shen; Mingming Qiu

来源：Electronic Journal of Geotechnical Engineering, 2016, 21(21): 5415-5434.

• Antiseismic performance
• Bedding rock slope
• Dynamic characteristics
• Dynamic response characteristics
• Peak ground acceleration
• Shaking table experiment
• Shaking table tests
• Supporting structure

Combination supporting structures (gravity retaining wall and anchor lattice girder) is widely used in the high rock and soil slopes due to its better anti-seismic performance. Based on combination supporting structure against bedding rock slope on the railway from Dali to Ruili, dynamic characteristics of retaining structures are studied by shaking table experiment by performing compressed Wen-chuan waves. It is found that horizontal /vertical acceleration amplification factors (β) decrease with the increase of peak ground acceleration (PGA). Both the cumulative displacement and peak displacement increase with the increase of PGA. Horizontal β, dynamic displacement and earth pressure increase with the increase of bedding rock slope inclination. X direction seismic wave is main factor inducing a failure of the slope. The loading direction in descending order affecting the horizontal βof gravity retaining wall are X-Z, X, and Z. The excitation direction affecting peak earth pressure and peak displacement have the same order. And then numerical analysis is carried out to verify the shaking table test. The comparison between the numerical simulation results and the shaking table experimental results show that the both law of results are generally similar to each other. It shows that shaking table test results are reliable, and numerical analysis is feasible.

• 出版日期2016
• 单位中南大学