Sentence examples for undrained strength from inspiring English sources
In addition, electro-osmosis caused a significant increase in the settlement and undrained strength of the soil.
The IPTC permits drilling through the plastic liner while the core is under pressure and the sequential measurement of P- and S-wave velocities, undrained strength, and electrical conductivity.
The undrained strength parameters obtained are summarized in Table 2.
Open image in new window Fig. 5 Relationship of normalized net cone resistance and undrained strength for clay soils Open image in new window Fig. 6 Relationship of normalized net cone resistance and undrained strength of silt soils Open image in new window Fig. 7 Relationship of normalized net cone resistance and undrained strength for all soils.
To investigate the influence of proportion of sand as well as its gradation on the undrained strength behavior of soils, undrained tests on statically compacted specimens of clay sand mixtures were carried, with two extreme clay minerals, namely commercially available kaolinite and bentonite mixed with specimens of three grades of sand fractions, and also varying their proportion from 10 to 80%.
This observed mineralogical is reasoned out based on the mechanisms controlling undrained strength of clays.
Undrained vane shear strength underestimates the in situ undrained shear strength and leads to underestimated normalized undrained shear strength ratios.
The undrained soil strength S u was related to the strength ratio (left( {frac{{S_{u} }}{{upsigma_{vnc} }}} right)) of normally consolidated soils and the OCR [15] by the equation: frac{{S_{u} }}{{sigma^{prime}_{v} }} = left( {frac{{S_{u} }}{{sigma_{vnc} }}} right)OCR^{A} (4).
The specific objectives of the research were to evaluate and compare: (1) compaction characteristics, (2) unconfined compressive stress-axial strain behavior, (3) unconfined compressive strength, (4) Young's secant modulus of elasticity, and (5) undrained shear strength characteristics of belite cement (BC)–clay and ordinary portland cement (OPC clay mixtures.
The upper marine clay was found to be soft with undrained shear strength values ranging from 10 to 30 kPa, while the lower marine clay was found to have undrained shear strength values from 30 to 60 kPa.
In addition to the algorithms, the approach was applied to a site with two sources of undrained shear strength from laboratory triaxial tests and in-situ plate bearing tests, and suggested a series of characteristic values for undrained shear strength for the site, corresponding to a given depth of interest, and to a given level of inherent soil variability in the horizontal direction.
