不等向固结过程对基坑周边土体的影响研究  

Research on the Anisotropic Consolidation Process of Soils around Deep Excavation

作　　者：郭小帅[1] 何建锋[1] 于新政[1] 刘雨[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《资源导刊（地球科技版）》2013年第9期87-89,共3页

摘　　要：自然状态下土体的固结过程为不等向固结过程，通过对比常规加载三轴试验与经历不等向固结过程三轴试验的强度参数及变形曲线，得出经历了不等向固结过程的土体强度要比常规加载三轴试验强度高，而不等向固结的土体随应力增长其应变更为平缓均匀，因此在基坑工程进行开挖及支护设计时，使用常规加载三轴试验参数是偏于安全的。The natural state of the soil under the consolidation process is the anisotropic consolidation process, according to compare the conventional load triaxial test and experienced the anisotropic consolidation process triaxial test shear strength parameters and stress-strain curve, obtained the anisotropic consolidation process of soils strength higher than the conventional load triaxial test strength, and the anisotropic consolidation of the soil deformation to be more smooth and uniform when the stress increment. So use the conventional load triaxial test shear strength parameters are safer in the foundation pit excavation and support design.

关 键 词：等向固结 三轴试验 强度参数 应力-应变曲线 

分 类 号：TU43[建筑科学—岩土工程]