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《Henan Science》 2018-08
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Influence of High Slope Rate Ratio on Micro Pile Support Effect

LI Jian;MEN Yuming;WANG Peng;GAO Ou;CHEN Guangping;College of Geology Engineering and Geomatics,Chang'an University;Xi'an Zhongjiao Rock and Soil Engineering Company;  
Slope slope rate is one of the important factors that affect slope stability. Micro pile is a new method ofslope engineering management in recent years. This paper mainly explores the supporting role of micro pile withhigh slope under different slope rates after the micro pile support,and uses ABAQUS software to model the highside slope under the conditions of 1∶0,1∶0.25,1∶0.5,1∶0.75 and 1∶1,and analyzes the deformation characteristicsof the micro pile under different slope conditions. On this basis,the support effect of micro piles under differentslope rates is discussed. Compared with the gentle slope with smaller slope rate,the micro pile is more suitable forhigh and steep slope,and it can give full play to its own supporting effect. With the increase of slope rate,the maximumdisplacement and bending moment of the micro pile are obviously moved down,the shear exit of the plastic slip zoneis closer to the slope angle. With the decrease of slope rate,the slope plastic zone has a downward trend.
【Fund】: 国家自然科学基金(41572261)
【CateGory Index】: TU473.1
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