Study on the stability of the Chuandong starch factory landslide of the pebbly silty clay in east Sichuan Province
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摘要: 由于结构的复杂性,含碎石粉质粘土的工程性质很难由常规土力学试验准确确定。论文以川东淀粉厂滑坡为例,通过现场试验、室内试验和工程类比,研究了含碎石粉质粘土的抗剪强度等指标的确定方法,探讨了含碎石粉质粘土滑坡的形成机制、控制因素和地质模型,应用极限平衡理论方法分析了在现状、暴雨和三峡水库蓄水后水位动态变化等环境条件下的滑坡稳定性。Abstract: The engineering property of the pebbly silty clay is difficult to determine accurately by the routine soil mechanics experiment because of its structure’s complexity.Depending on the Chuandong starch factory landslide,supported by the field test,the laboratory test and the project analogy method,this paper studies the determined method of the pebbly silty clay’s shear strength etc inderes,discusses the formation mechanism,the controlling factors and the geological model,and analysises on the stability under the current situation,the rainstorm and the water level dynamic variationsin after water storage of three gorges reservoir etc environmental conditions by the limit equilibrium theory.At the same time,the sensitivity analysis of shear strength parameters in pebbly silty clay stability is studied.
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Key words:
- pebbly silty clay /
- landslide /
- stability
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