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黄土承载后， 出现低强度软塑带———“演化弱层”是黄土基底构筑物失稳的内在基础， 其弱层的出现必然遵循介质内部作用机制。通过深入研究黄土的粘土矿物成分及其分级荷载下的微结构演化规律， 为黄土基底构筑物稳定控制技术提供科学依据
After loess bearing, low-strength soft plastic band appears --- “weak layer of evolution” is the inherent foundation of the instability of loess base structure, and its weak layer inevitably follows the internal mechanism of medium. Through in-depth study of loess clay mineral composition and grading load evolution of the microstructure, provide scientific basis for the stability control technology of loess base structures