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Abelev, M. Yu.; Krutov, V. I.

doi:10.1023/a:1005260318917

Cited by 3 publications

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“…Differential settlements of foundations during construction and operation of buildings and structures is one of the challenges which the construction industry faces [7]. Thus, cracks and distortions appear in relatively flexible buildings, and tiltsin stiff buildings and structures which are considered in the paper.…”

Section: Introduction введениеmentioning

confidence: 99%

Stress-strain state of a borehole determined analytically using drilling-out as a technology of reducing differential settlement

Pronozin

Kajgorodov

Гербер³

2021

Russian journal of transport engineering

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The existing approaches for reducing the differential settlements of buildings and structures have their own advantages and disadvantages. Lowering of a building or part of it is one of the promising methods to reduce the differential settlements of shallow foundations resting upon weak silt-loam soils. The effect is achieved by drilling-out vertical boreholes in the immediate vicinity of the foundation from the minimal settlements. Method: Russian and foreign scientists have been involved in the development of calculation procedures for horizontal and inclined drilling-out of boreholes. It has been important to determine drilling parameters when using this technology and how soil characteristics and stress state of soils around the borehole influence the reduction of differential settlements. The paper discusses the influence of the strength characteristics of soils on the stress state of the soil massif around the borehole, as well as the influence of the borehole radius on the formed areas of limit state. The analytical solution is based on the well-known ratio used to determine the stress state around the borehole during pressure tests. Tangential and radial stresses are determined from this ratio; next, they are checked according to the condition of the strength law, and thus, the stress state around the borehole becomes evident. Result: The stress state of the soil around the boreholes has been calculated by the given method; it has made it possible to calculate the areas of soil destruction and determine the parameters of boreholes and their geometry depending on the purposes when regulating the settlements of slab foundations. It has been established that drilling behind the foundation contour in relation to drilling in the foundation contour makes it possible to increase the radius of the plastic deformation zone up to two times under the same soil conditions and well geometry.

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Section: Introduction введениеmentioning

confidence: 99%

Stress-strain state of a borehole determined analytically using drilling-out as a technology of reducing differential settlement

Pronozin

Kajgorodov

Гербер³

2021

Russian journal of transport engineering

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Analytical Plastic Solution Around Soil-Digging Holes for Inclined Building and its Application

Chen

Zhang

2017

Int J Civ Eng

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Soil areas numerical determination aimed at correction of a building tilt

Melnikov

Pronozin

Stepanova

et al. 2021

J. Phys.: Conf. Ser.

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The analysis of the soil area in the base of an absolutely stiff building has been proposed in the article. Influencing this area it is possible to correct the tilt. The authors of the paper provide an overview of various methods of the tilt correction. The study of the soil spreading in the basement soil has been carried out; the soil area is less deformed under eccentric loading than under central loading. This area is proposed to be called the area of “deficit” strains. The first series of numerical computations has shown that this area depends only on the tilt of an absolutely stiff building; it is described in accordance with a linear law when using simple geometric shapes: a sector and a segment. The second series of computations has illustrated that when decreasing deformation and strength characteristics of this area, the building tilt is corrected. In here, the entire area of the “deficit” strains is not required to be used, just its basic area incorporating a part of a sector and a segment. These areas are concentrated at the edge of the footing. The optimal range of values for a single coefficient which lowers the basic mechanical characteristics of soil has been established. Conclusions on the computations have been drawn and plan for further research has been proposed.

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Cited by 3 publications

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Stress-strain state of a borehole determined analytically using drilling-out as a technology of reducing differential settlement

Stress-strain state of a borehole determined analytically using drilling-out as a technology of reducing differential settlement

Analytical Plastic Solution Around Soil-Digging Holes for Inclined Building and its Application

Soil areas numerical determination aimed at correction of a building tilt

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