| The roadbed stability may through the research which distorts to the roadbed carry on the analysis, including vertical distortion and lateral deformation. The vertical distortion may carry on the subsidence rule, the labor after the subsidence board observation subsides aspects and so on forecast and differential settlement studies. The lateral deformation may conduct the research through the side pile observation. The slope of embankment stability also is in the actual project main research content.This article in to experiments about 1 year in the stable observation foundation, to the hyperbolic long-base method, the exponential curve law, the Asaoka law forecast the result the contrast discovered that the hyperbolic curve suits in this area's settlement qualities. At the same time, It is pointed, by comparison, that the settlement quantity of compound foundation, especially treated by Stone columns and Dry Jet Mixing Pile, could be reduced effectively. Reinforced zone could be decreased by DJMP composite basement, according the different treating methods the soft foundation treatment. The settlement caused by impact compaction occupied about 11% and the earth fill high and the subsidence quantity presents the good linear correlation and the asymmetry settlement standard is also discussed.The article has established the embankment lateral displacement and the settlement subsidence quantity relational model, inferred have squeezed out the subsidence the formula. The settlement caused by lateral displacement occupied about 20% based on the formula and data.The slope stability is computed by the LSLOPE1.0 software, and the relation between single factor and safety factor is discussed. These factors' sensitivity are analyzed by orthogonal experiment and the sensitivity to safety factor in turn as height, angle of equivalent internal friction, gradient, cohesion force, density. |
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