Moldeling the performance of masses of weak clayey soils

Shashkin, A. G.

doi:10.1007/s11204-011-9141-9

Cited by 1 publication

(2 citation statements)

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“…Calculation results of the options given in Table1, allow us to estimate the quasistatic nature of the process of soil strain on the DDL. To do this, the half the wavelength, propagating in soil, is determined according to the following formula: ct   (10) Introduce the ratio of the half the wavelength  to the thickness of the soil layer  .…”

Section: Discussionmentioning

confidence: 99%

“…Mechanical characteristics of soils based on specific elastic-viscoplastic models of soils are defined in [1 -5] under static and dynamic loads in laboratory and field conditions. The complex laws of strain in soils and rocks [6][7][8][9][10], applied problems of destruction [11], a comparative analysis of mechanical characteristics determined by different methods [12], nonlinear models of soil strain [13 -18] and non-one-dimensional problems of seismic stability of earth structuresall these aspects require experimental data on mechanical characteristics of soils and rocks, especially when they are subjected to dynamic loads.…”

Section: Introductionmentioning

confidence: 99%

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Wave processes in determining mechanical characteristics of soils

Sultanov

Loginov²,

Ismoilova³

et al. 2019

E3S Web Conf.

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Mechanical characteristics of soils under dynamic and static loads are determined in laboratory conditions on special devices. Dynamic loads in the devices are initiated by an impact on a soil sample. Under the impact the waves are initiated in soil; they significantly affect the stressstrain state of soil samples placed in the device. Depending on the parameters of the impact load in the device, in different sections of soil sample there arise the stress-strain states, different in quality and quantity. Mechanical characteristics of soil, determined by this stress-strain state, also differ. The effect of stress-strain state of soil on its mechanical characteristics can be estimated theoretically. The initiation of the wave process and dynamic stress-strain state in soil sample placed in the device can be theoretically examined in detail. In this regard, the wave problem is set, which corresponds to the statement of experiments on the device of dynamic loading of soil. The law of soil strain is taken as an elasticviscoplastic one. Numerical solution of wave equations is obtained by the finite difference method. Based on the analysis of stress-strain state of soil in various sections, obtained by numerical calculations, the condition is derived under which the effect of wave processes on mechanical characteristics of soils is eliminated. This condition (formula) establishes the relationship between the wavelength, the velocity of wave propagation in soil, the thickness of the soil sample in the device and the duration of dynamic load.

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Section: Discussionmentioning

confidence: 99%