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基于路基被动区软土剪切塑流变形与稳定机理的综述,结合弹性理论推导,验证了被动区软土不排水强度3cu控制剪切塑流的路基临界竖向荷载水平的合理性。针对浙东滨海淤积平原区某一级公路临河路基失稳实例分析,阐明了加、卸载共同作用时的被动区软土剪切塑流失稳机理及其牵引整体滑动破坏机制,并为今后类似工程中的软土地基预压工法加载稳定控制,提供依据和参考。
Based on the review of deformation and stability mechanism of plastic flow in soft subgrade of passive subgrade, combined with the elastic theory, the rationality of subgrade vertical vertical load of passive flow control soft subgrade with 3 uc shear plastic flow is verified. Aiming at the instability analysis of Linhe subgrade of a certain grade of highway in silting plains in eastern Zhejiang, the destabilization mechanism of soft plastic shear flow in passive zone and the overall sliding failure mechanism in the passive zone when the loading and unloading are combined are clarified. In the future, In the soft ground preloading method loading stability control, provide the basis and reference.