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Full-Text Articles in Engineering
Stability Analysis Of Slope Based On Green-Ampt Model Under Heavy Rainfall, Yong-Hua Su, Cheng-Cheng Li
Stability Analysis Of Slope Based On Green-Ampt Model Under Heavy Rainfall, Yong-Hua Su, Cheng-Cheng Li
Rock and Soil Mechanics
The method of rainfall infiltration analysis directly affects the prediction and prevention of rainfall-induced landslides. Green-Ampt (GA) model, which has clear physical meaning and few parameters, has been paid more and more attention in the analysis of rainfall-induced landslides. However, this method ignores the existence of the unsaturated layer of the wetting layer and the seepage of the saturated layer, which affects the calculation accuracy. In view of the above deficiencies, the LSGA model is established based on the stratified hypothesis and the saturated layer seepage, and the expression of slope stability coefficient is established. All results show that LSGA …
Model Experiment And Calculation Analysis Of Excavation-Seepage Stability For Shallow Shield Tunneling In Sandy Ground, Bo Mi, Yan-Yong Xiang
Model Experiment And Calculation Analysis Of Excavation-Seepage Stability For Shallow Shield Tunneling In Sandy Ground, Bo Mi, Yan-Yong Xiang
Rock and Soil Mechanics
Regarding the influence of seepage on face support pressure and ground collapse mode in shallow shield tunnel excavation, an experimental system composed of a shallow shield tunnel excavation-seepage model and a setup of measurement and data acquisition is designed and established, with consideration of pore water pressure in the excavation chamber and face plate opening ratio. The saturated soil pressures and pore water pressures at the face and settlements of surrounding strata are measured under various steady-state seepage conditions, as the soil input into the excavation chamber is gradually increased. Correspondingly, numerical simulations and limit equilibrium calculations are carried out. …