Journal ArticleDOI
Deflection of buried prestressed concrete cylinder pipe with soil-pipe interaction
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In this article, a finite element model is built to reflect the soil properties, as well as the backfill and in-situ condition, and an equation for horizontal deflection of buried pipe considering soil-pipe interaction is proposed.Abstract:
The deflection of the buried pipe is a function of the load on the pipe, and also the load on the pipe is a function of the deflection. It is a typical soil-pipe interaction. The vertical deflection of buried pipe with the soil properties has been relatively well studied, however, there is no proper and practical guideline on the horizontal deflection of buried pipe considering the soil-pipe interaction. In practice, the horizontal deflection is considered as the same as the vertical deflection and it provides unnecessary conservative design. In this study, the deflection of buried prestressed concrete cylinder pipe is measured using a selected soil model. A finite element model is built to reflect the soil properties, as well as the backfill and in-situ condition. An equation for horizontal deflection of buried pipe considering soil-pipe interaction is proposed.read more
Citations
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Journal ArticleDOI
Rehabilitation Effect Evaluation of CFRP-Lined Prestressed Concrete Cylinder Pipe under Combined Loads Using Numerical Simulation
TL;DR: In this paper, two contrasting three-dimensional finite element models that investigated the visual cracking of concrete and the yielding of steel cylinders were developed, and a conceptual zone was introduced to analyze the different states of the pipe during the phase of wire break.
Proceedings ArticleDOI
Finite element modeling for stress analysis of a buried pipeline under soil and traffic loads
TL;DR: In this paper, the authors investigated the effects of such factors on the stress distribution of a buried pipeline and found that buried depth, seismic and traffic loads are important determinants of the stressed distribution.
Dissertation
Enhanced design approaches for rigid and flexible buried pipes using advanced numerical modelling
TL;DR: This research aimed to improve the understanding and propose improvements in the design methods for buried rigid (concrete) and flexible (polyvinyl chloride (PVC) pipes, to aid with the achievement of a more economic and robust design.
Journal ArticleDOI
Mechanical Characteristic Analysis of Buried Drainage Pipes after Polymer Grouting Trenchless Rehabilitation
TL;DR: In this article, the Winkler model and the Vlazov model of pipe-soil-polymer interaction based on the elastoplastic theory are established, and the calculation formulas of the pipesoil interaction under polymer grouting are derived.
Journal ArticleDOI
Mechanical performances and evolution of stiffness of thin-walled strain hardening cement-based composites pipes during cyclic loading
TL;DR: In this paper, four series of pipes such as reinforced strain hardening cement-based composites (SHCC) pipe (RSHCCP), plain SHCCP, reinforced cement mortar pipe (RMP), and plain cement mortar (MP) were investigated by means of three-edge bearing testing (TEBT) under monotonic and cyclic loading.
References
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Journal ArticleDOI
Nonlinear Analysis of Stress and Strain in Soils
James M. Duncan,Chin-Yung Chang +1 more
TL;DR: In this article, a simple, practical procedure for representing the nonlinear, stress-dependent, inelastic stress-strain behavior of soils was developed, based on the results of standard triaxial tests on plane strain compression tests involving primary loading, unloading, and reloading.
Journal ArticleDOI
Hyperbolic Stress-Strain Response: Cohesive Soils
TL;DR: In this article, the divergent concepts of a stability analysis, as compared with a load-deformation approach to soil mechanics, are shown to be compatible within the framework of a hyperbolic stress-strain relation.
Book
Formulas for stress, strain, and structural matrices
TL;DR: In this paper, the authors present a reference source for strength of material formulas for the analysis and design of structural members and mechanical elements, including beams, bars, plates and shells with very general mechanical or thermal loading.
Attenuation of stresses for buried cylinders
J Q Burns,R M Richard +1 more
TL;DR: In this article, an analysis for the interaction of an elastic cylindrical shell embedded in an elastic medium which is loaded by a surface overpressure is presented, and the analysis is made through the use of extensional shell theory for the shell and Michell's formulation of Airy's stress function for the medium.
Journal ArticleDOI
Soil-structure interaction for deeply buried corrugated steel pipes Part I: Embankment installation
TL;DR: In this article, a pipe-spring model was used for buckling analysis of corrugated steel pipes and the spring coefficients were calculated using the static analyses of soil-structure models, and the ultimate and critical strengths determined from this study compare well with those from American Iron and Steel Institute (AISI) buckling equations.