Study on cyclic cumulative pore pressure and strength evolution 
of soda residue soil under anisotropic consolidation

WANG Yuan-zhan; GONG Xiao-long; WANG Xuan; CHEN Yan-ping; XIE Tao

doi:10.16285/j.rsm.2022.0417

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Study on cyclic cumulative pore pressure and strength evolution of soda residue soil under anisotropic consolidation

更新时间：2026-06-25

- Study on cyclic cumulative pore pressure and strength evolution of soda residue soil under anisotropic consolidation
- Vol. 44, Issue 2, Pages: 373-380(2023)
- 作者机构：
  
  1. 天津大学天津大学水利工程仿真与安全国家重点实验室,天津,300354
  2. 天津港集团有限公司,天津,300461
  3. 中国电建华东勘测设计研究院有限公司,浙江,杭州,311122
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2022.0417
  CLC： TU41
- Online First：17 February 2023，
  
  Published：2023
- 稿件说明：
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WANG Yuan-zhan, GONG Xiao-long, WANG Xuan, et al. Study on cyclic cumulative pore pressure and strength evolution of soda residue soil under anisotropic consolidation[J]. 2023, 44(2): 373-380.
DOI：

WANG Yuan-zhan, GONG Xiao-long, WANG Xuan, et al. Study on cyclic cumulative pore pressure and strength evolution of soda residue soil under anisotropic consolidation[J]. 2023, 44(2): 373-380. DOI： 10.16285/j.rsm.2022.0417.

摘要

碱渣是氨碱法制纯碱时排出的固体废弃物，经适当的加固处理后作为工程填垫土可以有效解决占地和污染问题。碱渣土的力学性质不稳定，在循环荷载作用下强度会发生明显弱化，导致承载力大幅降低。以天津港地区回填碱渣土为研究对象，开展了系列动三轴试验，以固结围压、动应力比和偏压固结比为试验变量，研究了不同应力组合下碱渣土中循环累积孔压发展规律以及循环后碱渣土不排水强度演化规律。基于等效超固结模型，引入强度弱化系数，建立了考虑偏压固结比和动应力比影响的碱渣土循环强度弱化模型；引入强度提升系数，建立了考虑偏压固结过程和循环加载过程耦合影响的碱渣土强度演化模型，并通过试验数据验证了模型的正确性。

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