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Embedment

About: Embedment is a research topic. Over the lifetime, 2441 publications have been published within this topic receiving 31444 citations.


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Journal ArticleDOI
TL;DR: In this paper, an analytical solution for the transient response to an axisymmetric and non-torsional surface load of an infinite, isotropic, elastic medium containing a spherical cavity with and without a thin elastic shell embedment using the residual variable method was obtained.

10 citations

Journal Article
TL;DR: In this paper, a range of design parameters for ductile failure mode of reinforced concrete deep beams was proposed to ensure a safe detailing of end anchorage for the flexural failure of deep beams.
Abstract: This paper focuses on the shear strength of deep beams combined with anchorage failure, based on upper bound solutions in the theory of plasticity. The solutions showed that the shear strength combined with anchorage failure is lower than other shear strength due to web crushing in some range of design parameters. The effects of shear span ratio, ratio of embedment length of bars beyond support to beam depth, and vertical reinforcement ratio on the failure modes and strengths were also investigated. An experiment was performed to compare with the plastic solutions and displayed good agreement with those of theoretical results. Lastly, this paper proposes a range of design parameters for ductile failure mode of reinforced concrete deep beams, which ensures a safe detailing of end anchorage for the flexural failure of deep beams.

10 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of pipe diameter on the vertical uplift resistance of a long horizontal pipeline embedded in sand has been investigated by using the lower bound finite-element limit analysis in combination with nonlinear optimization.
Abstract: By incorporating the variation of peak soil friction angle (phi) with mean principal stress (sigma(m)), the effect of pipe diameter (D) on the vertical uplift resistance of a long horizontal pipeline embedded in sand has been investigated. The analysis has been performed by using the lower bound finite-element limit analysis in combination with nonlinear optimization. Three well-defined phi versus sigma(m) curves reported from literature for different sands have been used. It is observed that for a given embedment ratio, with an increase in pipe diameter, the magnitude of the uplift factor (F-gamma) reduces quite significantly, which indicates the importance of considering scale effects while designing buried pipe lines. The scale effects have been found to become even more substantial with an increase in the embedment ratio. The analysis compares well with various theoretical results reported from literature. On the other hand, as compared to available centrifuge test results, the present analysis has been found to provide quite a higher magnitude of the uplift resistance when the theoretical prediction is based on peak soil friction angle. However, if the theoretical analysis is performed by using the friction angle that accounts for the progressive shear failure, the difference between the theoretical and centrifuge test results decreases quite significantly.(C) 2013 American Society of Civil Engineers.

10 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of the proppant embedding phenomenon on the effective packed fracture in a reservoir rock was investigated, which occurs after the performed hydraulic fracturing treatment of hydrocarbon reservoirs, during closing of the rock mass.
Abstract: This paper presents the subject related to the technology of creating fractures into a rock, as well as the subject related to the effect of the proppant embedment phenomenon on the effective packed fracture in a reservoir rock. This phenomenon occurs after the performed hydraulic fracturing treatment of hydrocarbon reservoirs, during closing of the rock mass. A key part of this experiment was to investigate the depth of proppant grains penetration into the fracture wall (shale rock) and size of damage to the fracture wall surface. The embedment phenomena effects on decrease in the width fracture packed with proppant. The tests were performed for shale rock initially soaked with fracturing fluid, lightweight ceramic proppant grains with a grain size of 0.600÷0.300 mm (medium diameter of proppant grains of 0.450 mm), low surface concentration of proppant of 2.44 kg/m. Time of exposure of proppant grains to compressive stress of a value 48.3 MPa for 6 hours at 70 C. Test results indicate that the developed testing methodology may be used for corrected evaluation of the fracturing fluid as well as proppant in hydraulic fracturing treatment of unconventional reservoirs, especially shale rocks. ARTICLE INFO

10 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023202
2022355
2021160
2020120
2019125
2018139