Journal
INTERNATIONAL JOURNAL OF GEOMECHANICS
Volume 21, Issue 6, Pages -Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)GM.1943-5622.0001978
Keywords
Collapsible loess; Structural strength; Structural parameters; Collapse potential; Damage theory
Categories
Funding
- National Key R&D Program of China [2017YFC0404804]
- National Natural Science Foundation of China [U1865104, 51479052, 41262012]
- Fundamental Research Funds for the Central Universities [B200204032]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX20_0442]
Ask authors/readers for more resources
Studies conducted on collapsible loess from Xinjiang, western China, using double-oedometer tests have revealed the relationship between structural strength and parameters of the loess with moisture content and vertical pressure variations. A model has been proposed to evaluate the structural strength and parameters of collapsible loess based on the damage caused by soaking on the loess anticompression capabilities. These findings are useful for evaluating the structural strength, stability, and water sensitivity of collapsible loess for geotechnical engineers.
Loess is one of the problematic soils with a worldwide distribution for its collapsibility. To study structural strength and parameters of collapsible loess, a number of double-oedometer tests on intact and remolded loess specimens, sampled from Xinjiang, western China, at different initial moisture contents were conducted. The collapse potential curve can be divided into three stages, and the curve at each stage represents the change of the loess internal structure during the collapse deformation process. Stage I: loess initial structure transforms into the secondary structure; Stage II: damage to the secondary structure; and Stage III: loess structure has been destroyed. Proceeding from the damage to loess anticompression capabilities resulting from soaking, a model is proposed to evaluate the structural strength and parameters of collapsible loess. The variation of loess structural strength with moisture content and vertical pressure is investigated, and the loess structural parameters under different conditions are determined. The results ought to enable geotechnical engineers to evaluate the structural strength, stability, and water sensitivity of collapsible loess.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available