Results 51 to 60 of about 472 (176)
Kinematic Limit Analysis of Roof Stability for Elliptical Tunnels in Rock Masses
ABSTRACT Noncircular cross‐sections are commonly encountered in engineering practice; however, primary attempts to analyze roof stability have focused on circular and rectangular configurations. This study investigates the roof stability of elliptical tunnels with varying aspect ratios, employing two semi‐analytical approaches: piecewise linear and ...
Tae‐Won Seo, Dowon Park
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Seismic performance of concrete tunnel–sand–pile interaction by the shake table test
This research presents the square root sum of squares response of displacements and tunnel moments under the Kobe and Loma Prieta seismic excitations with a peak ground acceleration of 0.05 g for various dry relative densities of local sand in Bangladesh.
Md. Foisal Haque, Mehedi A. Ansary
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This study evaluates the effectiveness of soil–cement reinforcement configurations in deep excavations using 2D FEM analysis. It investigates two different approaches to represent soil–cement reinforcement and compares them, showing that blocks reduce lateral deflections by 60%–64% and bending moments by 22% compared to columns.
Tarik Solomon Teshome
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Photogrammetric documentation in tunneling
Abstract Photogrammetric surveys for geological excavation documentation are standard practice in tunnel construction, benefiting from the sector's ongoing digitalization. However, the application of photogrammetry often remains confined to geological assessments. By creating comprehensive 3D models of excavated tunnels, it is also possible to evaluate
Andreas Zani +2 more
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A 3D numerical analysis of the compaction effects on the behavior of panel-type MSE walls
Soil is weak in tension but strong in compression. The resistance to tensile deformation of soil is given by the tensile force of the reinforcement in the reinforced soil, and the tensile force of the reinforcement is generated by the frictional force at
Won Myoung-Soo, Langcuyan Christine P.
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A Modified Strain‐Wedge Model for Small Strain Rigid Piles in Sand
This paper develops a modified strain‐wedge (MSW) model within the small strain regime. The model developed is three times more accurate for predicting the pile rotation point and the maximum bending moment than previous models. However, FEA is more precise than the developed model when the strain enters the medium to large domain.
Yisheng Yin, Dongyuan Wang, Kai Cui
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The Evaluation of Effect of Jet Grout Columns to the Settlements in Soils with Numerical Methods
Increasing population bring together the need for construction on weak soils. At this point, soil improvement methods gain importance in which the problematic properties of soils aimed to enhance.
Eylem Arslan +4 more
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Calculation of the foundation settlement during compensation grouting [PDF]
The article presents the issue of correctly calculating the SSC of the foundation bases in the process of compensation grouting. It is shown that the numerical calculation should be performed in two versions: hydrostatic pressure and rear volume strain ...
Luzin Ivan, Ermoshina Lyubov
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Numerical Simulation of Layered Compressible Soils’ Creep Deformation Under Monopile Foundation
Creep deformation, a key issue in foundation stability, is a long‐term soil deformation that can cause significant damage and catastrophic failure to various structures. This numerical investigation aims to estimate the creep deformation variation of layered compressible soils under monopile foundation using the PLAXIS 3D analysis software. Accordingly,
Defaru Katise Dasho +4 more
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In the present paper, a three‐dimensional (3D) numerical model was established to assess the ground vibrations induced by vehicles traversing road surface irregularities. The equations of motion for the coupled system, comprising a multibody vehicle model and road unevenness profiles, were first solved to determine the dynamic vehicle loads.
Hussein Hadi Hussein +2 more
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