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Construction of artificial bases on water-saturated loess soils in the Tadzhik SSR
Conclusions The design strength of a heterogeneous soil base with a weak underlying layer depends on the thickness, strength, and deformation characteristics of the upper dense layer. For a relative thickness λ<1.0 of the dense layer, the design strength of the stratified base is determined primarily by the design strength of the weak underlying layer; for λ>2, the weak underlying layer is practically inoperative and the stratified base can be assumed to be homogeneous.Construction of compacted earth beds, using different materials, on water-saturated loess soils makes it possible to significantly increase the design strength of the artificial base.Under static loading of rigid plates, the contact pressures on their bases are distributed in such a way that a saddle-shaped diagram is formed. The distribution of the experimentally measured stresses with depth in the artificial base fully agrees with the analytically found distribution, calculated in conformity with the model of a linearly deformable half-space.For blasting-seismic action the primary increase in the stresses is observed at the interface between the bed and the weak underlying layer; the primary increase in the plate settlements takes place also on account of the weak layer.
Construction of artificial bases on water-saturated loess soils in the Tadzhik SSR
Conclusions The design strength of a heterogeneous soil base with a weak underlying layer depends on the thickness, strength, and deformation characteristics of the upper dense layer. For a relative thickness λ<1.0 of the dense layer, the design strength of the stratified base is determined primarily by the design strength of the weak underlying layer; for λ>2, the weak underlying layer is practically inoperative and the stratified base can be assumed to be homogeneous.Construction of compacted earth beds, using different materials, on water-saturated loess soils makes it possible to significantly increase the design strength of the artificial base.Under static loading of rigid plates, the contact pressures on their bases are distributed in such a way that a saddle-shaped diagram is formed. The distribution of the experimentally measured stresses with depth in the artificial base fully agrees with the analytically found distribution, calculated in conformity with the model of a linearly deformable half-space.For blasting-seismic action the primary increase in the stresses is observed at the interface between the bed and the weak underlying layer; the primary increase in the plate settlements takes place also on account of the weak layer.
Construction of artificial bases on water-saturated loess soils in the Tadzhik SSR
Konovalov, P. A. (author) / Musaélyan, A. A. (author) / Usmanov, R. A. (author) / Bogachko, V. A. (author) / Vil'fand, A. G. (author) / Tsauner, I. A. (author)
1986
Article (Journal)
English
Local classification TIB:
770/6545/8000
BKL:
56.20
Ingenieurgeologie, Bodenmechanik
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