Study On Failure Mechanism Of Landslide Anti-slide Pile Of Bailong Stadium

During the rainy season in 1997, Bailong playground slope slided, so the slope was reinforced in 1998 and 2000, but the two control over all do not have the desired effect, Observation data shows BaiLong playground slope was still in a state of instability, and its side deformation continues in middle segment. In 2006, it was reinforced the third, so far, the slope is stable.Based on the above situation, the combination of middle pile stadium pile instability issues were discussed. Due to landslide pile system and the interaction between the complexity, according to the mechanism of instability and failure of landslide, try using nonlinear finite element method of sliding slope anti-slide pile and soil when cantilever interaction. In the engineering geological conditions of the specific parameters, and pile structure system, draw some conclusion. Through calculation, the slope in weight, when the saturation is 35%, slope is in a stable state. When the saturation is 50%,65% and 80%, slope is not steady state. When the saturation is 100%, the slope stability of landslide, has not. The slope stability of the secondary supporting sequence analysis shows that in the slope under the action of gravity, in stable condition, when the saturation is due to the second 50%, the reinforcement, reinforced slope failure, so no moment is still stable. When the saturation 65%, 80% and 100%, the slope instability. When insufficient pile length, weight in the soil after pile under no yield, the basically stable slope, when the saturation,65%,80% of the slope is still in a stable state. When the saturation is 100%, slope is not steady state. A third of the numerical analysis shows that after reinforcement in saturated condition, pile achieves a good performance in the anti-sliding stability of the slope.