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Analysis of Deformation in High Slope on Ramp A of Tangtun Expressway and Trouble-Shooting

Zou Zhengmin1,2  
Slope on ramp A of Tangtun Expressway is a bedding rock slope.During excavation in the middle of layer 2,there is an arc crack occurs at rear edge of the slope,the deformation and failure mode is shown as slide-bending deformation.For this project is important,according to suggestions by the designer and researching unit,under instruction by supervision results,frame prestress anchoring cable is used on slope for emergent treatment,anti-slide piles will be arranged after slope deformation stabilized.In view of result of this solution, it has meliorate downstream anti-slide pile construction,the emergent treatment solution is effective.The result of monitoring shows the effect of treatment is fine and the slope is now in stable status.
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