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Unconfined compression (UC) is a valid strength test for most cohesive soil types, but there are some exceptions: Soils that expel or bleed water during testing and do not retain strength after loading. Soils that are dry/crumbly, fissured, or have a varved (alternating thin layers of clay and silt or sand) structure.
The unconfined compression test is the most popular method of soil shear testing because it is one of the fastest and least expensive methods of measuring shear strength. It is used primarily for saturated, cohesive soils recovered from thin-walled sampling tubes.
This test method is useful to estimate the undrained shear strength of soil. It is noted that drainage is not prevented during this test. The estimated value for undrained shear strength is, therefore, only valid for soils of low permeability, which behave sufficiently undrained during the test.
28 maj 2014 · Frequently, it is called as string test. Many users stipulate full-speed, full-load mechanical running test for compressors in offshore installations, large liquefied natural gas (LNG), re-injection, and ethylene plants.
1 sty 2024 · The estimates of soil compressibility calculated from the model at 10 kPa (C 10) correlated closely and linearly to the C s index considered to reflect elastic deformation in classical studies of soil compression tests. Soil bulk density and content of soil organic matter decreased C 10 as well as compressibility at 100 (C 100) and 400 kPa (C 400).
12 paź 2024 · Explore all metrics. The dynamic properties of coarse-clastic soils based on triaxial dynamic compression and low-amplitude resonant column tests are analyzed. Combination of these methods allows the ultra-small fundamental shear deformations relationship and accumulated by the time deformations to be obtained.
1 kwi 2020 · Standard Test Method for Consolidated Undrained Triaxial Compression Test for Cohesive Soils. The shear strength of a saturated soil in triaxial compression depends on the stresses applied, time of consolidation, strain rate, and the stress history experienced by the soil.
