The triaxial test data are on soft and stiff clays at depths of 3–4 m and of 16–18 m, respectively. The Mohr–Coulomb strength parameters c′ and ϕ′ are obtained from triaxial tests conducted both under undr
The shear strength, Sh, of the sample can be described by Coulomb’s equation: (2.1)Sh=ch+ph tanϕh The intercept ch is commonly known as the cohesion and φh is defined as the angle of internal friction. It should be noted that the parameters ch and φh depend on the type of ...
In the present research, the effects of the addition of polyvinyl acetate (PVA) and micronized calcium carbonate (MCC) on the strength of silty sand soil have been investigated. PVA and MCC were mixed with soil in different proportions (1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 5% and 6% ...
The number of studies concerning the shear strength of resedimented alluvial soils is extremely limited compared to the studies conducted on fine-grained m
et al. Reliability Analysis of Water-Rich Soft Soil Foundation Pit Considering the Change of Supporting Parameters | [考虑支护参数变化的富水软土基坑可靠度分析]. Zhongguo Tiedao Kexue/China Railway Science, 2024, 45(6): 33-44. DOI:10.3969/j.issn.1001-4632.2024.06.04 13. Pang, R., Yao, ...
Cohesive soils, mixes and clays. Grains cannot be seen by naked eye. Feels smooth and greasy when rubbed between fingers. When water and soil Plastic and sticky. are shaken in palm of Can be rolled. hand, they will not mix. Figure 4 When dry... Little or no cohesive strength when ...
5a) since these two parameters most strongly influence the density values. Table 1 indicates that the amounts of added hydroxyethylcellulose and NH4OH appear to have less of an influence on the measured density; varying the amount of NH4OH from 5–15 mL while keeping the amount of Na2SiO3 ...
35 DSM columns with different construction parameters were installed in the test section, and cement content and unconfined compression tests of field core samples were conducted. The relationship between the unconfined compressive strength (UCS) and cement content of DSM columns was formulated, and ...
For the UCS test, five samples were prepared for each mixture. 2.3.5. Consolidated isotropic undrained (CIU) triaxial Test The consolidated isotropic undrained (CIU) triaxial test was utilized to evaluate the shear strength parameters of expansive clay soil (ECS) and ECS treated with varying ...
3. Laboratory test program and index soil parameters 4. Thixotropy of the clays 5. Static undrained shear strength 6. Cyclic behaviour of silty clay and silty, clayey sand 7. Shear modulus 8. Conclusions Declaration of Competing Interest Acknowledgements References Cited by (26) Figures (12) ...