Seismic response of landslide with micropiles

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Li, Nan^1 ; Men, Yuming^1 ; Gao, Ou^1 ; Liu, Xueling^1

School of Geology Engineering and Geomatics, Chang'An University, Xi'an, Shaanxi

710054, China^1

关键词: Acceleration response;    Micropiles;    Residual bending moments;    Seismic Performance;    Shaking table tests;    Sinusoidal wave;    Sliding surface;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/4/042014/pdf
DOI  :  10.1088/1757-899X/392/4/042014

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to study seismic response of the landslide with micropiles, shaking table tests were performed on two landslide models (i.e., micropiles-reinforced landslide and unreinforced landslide). El Centro waves, Wenchuan waves, Kobe waves and sinusoidal waves were applied to the model. A comparison was made on the acceleration response between reinforced landslide and unreinforced landslide. Furthermore, the residual bending moment of micropile was analyzed. The results indicate that micropiles have a good seismic performance for landslide, and it can suppress the seismic waves that propagated to landslide. Under the same seismic wave, the acceleration response of reinforced landslide is smaller than that of unreinforced, especially in the toe of landslide. The residual bending moment of micropiles shows reverse "S"-type. The maximum residual bending moment of micropile mainly distribute in 3.7 times pile diameter above the sliding surface and 1.4 times pile diameter below the sliding surface.