Influence of engineering excavation scale on loess slope stability
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Abstract:
With the rapidly economic development in the Loess Plateau, the site has become a bottleneck restricting the develop2 ment of local economy, which leads to inevitable slope cutting and therefore a large number of catastrophic loess landslides. Ac 2 cording to the limit equilibrium theory of slope instability caused by excavation, the variation characteristics of stress, strain, and yield zone were analyzed under different scales. T he results showed that the excavation area forms horizontal load decrement, the top of slope is prone to the occurrence of tension crack, and the excavation can accelerate the formation of the yield surface from top to bottom. Finally, the excavation slope stability was analyzed under different scales. The research results are of scientific and guiding significance on the excavation slope in the loess area.
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