The performance of inclined secant micro-pile walls as active vibration barriers

Turan, Alper; Hafez, D. H.; Naggar, M. Hesham El

doi:10.1016/j.soildyn.2013.09.003

Cited by 27 publications

(14 citation statements)

References 23 publications

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“…This model is typically assumed in similar investigations considering wave propagation in soil and vibration mitigation techniques (Coulier et al [7], Chen et al [5], Turan et al [19], Gao et al [10], Kattis et al [12]). …”

Section: Equations Of Motion For a Damped Transversally Isotropic Mediummentioning

confidence: 99%

“…Research findings indicate that a = 1 and b = 0.25 can yield reasonable absorption at the boundary (Turan et al [19]). These values are also assumed in this study.…”

Section: Boundary Conditions and Finite Element Modelmentioning

confidence: 99%

“…A vibration attenuation effect is achieved by the proper interception, scattering and diffraction of surface waves. Different solutions are implemented to achieve wave scattering, including sheetpile walls (Dijckmans et al [8]), piles (Kattis et al [12], Gao et al [10], Turan et al [19]) and in-filled trenches -with water, soft soil, soil-bentonite mixture, concrete or special materials, such as GeoFoam (Ulgen and Toygar [20], Alzawi et al [1], Coulier et al [7]). However, the best results are achieved by the use of so called open trenches (Kattis et al [12], Leung et al [13]).…”

Section: Introduction Literature Reviewmentioning

confidence: 99%

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The Efficiency of an Active Generator in the Case of a Deep Foundation Location

Herbut

2017

Studia Geotechnica Et Mechanica

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This paper presents a concept for vibration-mitigation techniques with the potential to reduce ground vibration amplitudes by applying an additional vibration source. The idea of an additional generator is verified in the case of an impact load for the points located on the ground surface and below it. Equations of motion for the damped transversally isotropic ground model with the absorbing boundary conditions are presented and numerically integrated using FlexPDE software, based on the finite element method. The efficiency of the solution is analyzed in terms of reducing the vertical and horizontal components. Results are presented in the form of a dimensionless amplitude reduction factor. In each case being analyzed, a vibration mitigation effect in a three-story building was achieved.

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Section: Equations Of Motion For a Damped Transversally Isotropic Mediummentioning

confidence: 99%

“…Research findings indicate that a = 1 and b = 0.25 can yield reasonable absorption at the boundary (Turan et al [19]). These values are also assumed in this study.…”

Section: Boundary Conditions and Finite Element Modelmentioning

confidence: 99%

Section: Introduction Literature Reviewmentioning

confidence: 99%

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The Efficiency of an Active Generator in the Case of a Deep Foundation Location

Herbut

2017

Studia Geotechnica Et Mechanica

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“…Carta et al [15] presented a mathematical model to calculate elastic fluid-filled cylinders subjected to industry-inspired problem. Turan et al [16] investigated an inclined secant micropile wall positioned as an active vibration barrier with 3D time domain finite element models. On account of its inaccuracy to assume the actual soil as monophasic medium, Cai et al [17,18] theoretically solved elastic wave scattering problem by single-row discontinuous barrier in full space using Biot's saturation equation.…”

Section: Introductionmentioning

confidence: 99%

Multiple Scattering of P₁ Waves by Arbitrarily Arranged Cavities in Saturated Soils

Sun

Fang

Zheng

et al. 2018

Shock and Vibration

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Based on Biot's saturated soil wave theory, using wave function expansion method, theoretical solutions of multiple scattering of plain P 1 waves are achieved by rows of cavities as barrier with arbitrarily arranged cavities in saturated soil. Undetermined complex coefficients after wave function expansion are obtained by cavities-soil stress and displacement free boundary conditions. Numerical examples are used to investigate variation of dimensionless displacement amplitude at the back and force of cavities barrier under P 1 wave incident, and it is also discussed that the main parameters influenced isolation effect such as scattering orders, separation of cavities, distances between cavity rows, numbers of cavities, and arrangement of barriers. The results clearly demonstrate optimum design proposals with rows of cavities: with the multiple scattering order increases, the displacement amplitude tends to converge and the deviation caused by subsequent scattering cannot be neglected; it will obtain higher calculation accuracy when the order of scattering is truncated at = 4; it is considered to select 2.5 ≤ p / ≤ 3.0 and 2.5 ≤ ℎ/ ≤ 3.5, while designing cavity spacing and row-distance, respectively. The isolation properties of elastic waves with rectangular arrangement (counterpoint) are weaker than that with hexagonal arrangement (counterchanged) when the row-distance of barrier is uniform.

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“…According to their proposed model, numerical simulation of a micropile subjected to the vertical loading showed that the total resistance of the pile would be a function of the "in situ state" of soil. Turan et al [8] investigated the vibration screening efficiency of an inclined secant micropile wall positioned as an active vibration barrier. Various parameters such as barrier depth, inclination, barrier distance and load excitation frequency were studied.…”

Section: Introductionmentioning

confidence: 99%

A new expression for determining the bending stiffness of circular micropile groups

Abdollahi

Mortezaei

2015

Soil Dynamics and Earthquake Engineering

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The performance of inclined secant micro-pile walls as active vibration barriers

Cited by 27 publications

References 23 publications

The Efficiency of an Active Generator in the Case of a Deep Foundation Location

The Efficiency of an Active Generator in the Case of a Deep Foundation Location

Multiple Scattering of P₁ Waves by Arbitrarily Arranged Cavities in Saturated Soils

A new expression for determining the bending stiffness of circular micropile groups

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The performance of inclined secant micro-pile walls as active vibration barriers

Cited by 27 publications

References 23 publications

The Efficiency of an Active Generator in the Case of a Deep Foundation Location

The Efficiency of an Active Generator in the Case of a Deep Foundation Location

Multiple Scattering of P1 Waves by Arbitrarily Arranged Cavities in Saturated Soils

A new expression for determining the bending stiffness of circular micropile groups

Contact Info

Product

Resources

About

Multiple Scattering of P₁ Waves by Arbitrarily Arranged Cavities in Saturated Soils