shaking table test study on dynamic behavior of micropiles in loose sand

Numerical Simulation of Piles Subjected To Lateral ...

simulation of dynamic behavior of liquefiable soils (Rahmani and Pak, 2012). In the present study, the soil is modeled using nonlinear elastoplastic Mohr-Coulomb constitutive model, and the piles are modeled using linearly elastic pile elements. The soil properties used in the numerical simulation are outlined in Table 1.

Effect of overburden stress and surcharge pressure on the ...

presents a comprehensive study consisting of shaking table experiments on saturated sand beds to understand the effect of overburden pressure for free field conditions and the effect of surcharge weight for under the structure conditions on the liquefaction response of the sand beds.

Dynamic Centrifuge Modeling of Sound Walls Supported on ...

The results of a model study comparing the dynamic behavior of sound walls supported on concrete cantilever (Caltrans Standard Type 1) and mechanically stabilized earth (MSE) retaining struc­ tures are presented. Different backfills representing a loose sand, a dense sand, and a cohesive material were studied. An additional

Hadis Jalilian Mashhoud - ResearchGate

Shaking table test study on dynamic behavior of micropiles in loose sand ... Analysis is performed using data obtained from shaking table tests on a small-scale physical model of micropiles with ...

A 1-g shaking table investigation on response of a ...

Nov 15, 2018· Shaking table tests were performed on a 4 × 4 group of vertical micropiles embedded in loose sand. Horizontal acceleration time histories recorded from the 1940 El Centro earthquake and 1995 Kobe earthquake were applied to the base of the soil container. ... (2017) Shaking table test study of dynamic behavior of micropiles in loose sand. Soil ...

Ali Komak Panah's research works | Tarbiat Modares ...

Shaking table test study on dynamic behavior of micropiles in loose sand ... a 4 × 4 group of vertical micropiles embedded in loose sand. Horizontal acceleration time histories recorded from the ...

Shaking table test on seismic response behavior of 2-story ...

SHAKING TABLE TEST ON SEISEMIC RESPONSE BEHAVOIR OF 2-STORY MASONRY HOUSE MODEL WITH PP-BAND MESH RETROFITTING Navaratnarajah SATHIPARAN1, Kotaro SAKURAI2 Muneyoshi NUMADA3 and Kimiro MEGURO4 ABSTRACT: This report is the study on the dynamic properties and seismic performance of the two-story masonry house model by the 1/4-scale shaking table test.

Seismic Response on Dense and Loose Sand Columns

SEISMIC RESPONSE OF DENSE AND LOOSE SAND COLUMNS ... Observed model response provided an improved understanding of dynamic- liquefaction behavior of a den&led ground surrounded by a loose liquefiable ground. The test results suggest the following concerns about ... ground by means of a series of l-g shaking table tests. These tests ...

Large-Scale Shake Table Test on Lateral Spreading of a ...

A SHEET-PILE WALL MODEL AND ITS CENTRIFUGE SIMULATION . Masayoshi Sato ... 3.1 m in width and 4.5 m in depth. Next, a dynamic centrifuge test on the behavior of a sheet-pile wall and a soil pile system was conducted to simulate that of a largescale shake table test as a prototype. ... In this study, a large scale shake table test was carried out to

Dynamic behaviour of saturated sandy soil reinforced with ...

This research presents results of shaking table tests which were carried out on the soil reinforcement with randomly distributed synthetic fibres. The main scope of the study is to investigate the reliability and performance of polypropylene fibres in improving liquefaction resistance of loose sand prone to …

ENGINEERING ANALYSIS OF DYNAMIC BEHAVIOR OF MICROPILE SYSTEMS

ENGINEERING ANALYSIS OF DYNAMIC BEHAVIOR OF MICROPILE SYSTEMS. ... Model tests on vertical and batter micropile systems embedded in loose to medium-dry sand under different levels of shaking are described. Group and network effects were investigated for different configurations and at different levels of loading. ... The experimental test ...

SEISMIC STUDY OF REINFORCED EARTH WALLS BY …

The seismic behaviors of reinforced earth walls have been investigated by shaking table (1-g) or centrifuge (n-g) models. Table 1 shows a brief summary of some 1-g shaking table model tests. Dry sand has been used as the backfill in all tests, mentioned in Table 1.

Behaviour of Saturated Sand Models under Principal Stress ...

The l.Sm by l.Sm shaking table with 6 hydraulic actuators was used in this study. One dimensional random waves and harmonic waves were generated and applied in X-X direction (Fig.l) to 6 loose (Dr=38±4%) and 6 medium dense (Dr=64±2%) models. General information about the input waves and the models is summarized in Table 1. The

Hadis Jalilian Mashhoud - Tarbiat Modares University ...

Shaking Table Test Study on Dynamic Behavior of Micropiles in Loose Sand Soil Dynamics and Earthquake Engineering, 2018 Elsevier Ltd. March 7, 2018. Micropiles are small-diameter piles installed in soil. Due to wide application of micropiles in seismically active areas, investigation of their behavior during earthquake is of great significance.

Andy Y.F. Leung - Google Scholar Citations

Shaking table test study on dynamic behavior of micropiles in loose sand HJ Mashhoud, JH Yin, AK Panah, YF Leung Soil Dynamics and Earthquake Engineering 110, 53-69, 2018

Soil Dynamics and Earthquake Engineering | Vol 110, Pages ...

select article Shaking table test study on dynamic behavior of micropiles in loose sand. ... Research article Full text access Shaking table test study on dynamic behavior of micropiles in loose sand. Hadis Jalilian Mashhoud, Jian-Hua Yin, Ali Komak Panah, Yat …

Shaking table test study on dynamic behavior of micropiles ...

Due to wide application of micropiles in seismically active areas, investigation of their behavior during earthquake is of great significance. In this study, shaking table tests were conducted on a small-scale physical model of micropiles consisting 16 vertical micropiles embedded in loose sand fill and subjected to harmonic sine waves.

Instructions for preparing papers for the

The one is to run a full-scale model test under the gravity field, while the other is the use of reduced density of sand. Fig.4 manifests the results of a full-scale shaking table test in which the thickness of sand was five meters and made the confining stress comparable to the in-situ level.

Effect of micropiles on liquefaction of cohesionless soil ...

Effect of micropiles on liquefaction of cohesionless soil using shake table tests. Authors; Authors and affiliations ... (1972) Liquefaction of saturated sand in triaxial torsional shear test. Soils Found 12(2):19–39 Google ... (2001) Engineering analysis of the dynamic behavior of micropile systems, transportation research record, Paper No ...

Uplifting Behavior of Shallow Buried Pipe in Liquefiable ...

Jul 10, 2014· The excitation progress was divided into 3 stages based on the acceleration amplitudes from weak to strong. White noise excitations were applied before and after each stage to test the dynamic characteristics of the model. The schedule of excitations as well as the uplifting status of the pipe 1# at each shaking stage is shown in Table 1. There ...

Seismic response analysis of Ganga sand deposits using ...

ined the response of Babolsar dry sand subjected to harmonic motions in a shake table test and numerical analysis. Turan et al. [10] performed a series of shaking table tests to study the nonlinear seismic behavior of clay using a laminar box. Phillips and Hashash [11] developed two frequency dependant viscous damping formulations suitable for

Shaking Table Investigation of Seismic Performance of ...

In this study, shaking table experiments were carried out on a small-scale physical model of micropiles. The physical model consisted of a 4 × 4 group of micropiles installed in loose sand. The scaled horizontal acceleration time history of 1995 Kobe earthquake was applied to the base of soil container and response of soil and micropile system ...

Evaluation on Seismic Enhancement Effect of Ground Improve ...

the results of both the analysis and test are compared in detail. The shaking table test device used in the present study has the maximum payload, acceleration and displacement of 16kN, 9.8m/sec2 and 0.05m respectively. In addition, the dimension of the shaking table shear box is 1.2x1.0x0.8m (length, width and height).

Jian-Hua Yin's research works | The Hong Kong Polytechnic ...

Jian-Hua Yin's 7 research works with 9 citations and 1,104 reads, including: Shaking table test study on dynamic behavior of micropiles in loose sand

Experimental study on deformation of a sandy field ...

To ensure controllability of the test materials, sand with poor grain size distribution was backfilled mechanically. ... Y.F. LeungShaking table test study on dynamic behavior of micropiles in loose sand. Soil Dyn Earthq Eng, 114 (7) (2018), pp. 53-69. Google Scholar. Y.L. Lin, X.M. Cheng, G.L. YangShaking table test and numerical simulation on ...

Prediction of pile response to lateral spreading by 3-D ...

Iwaki sand above the water table overlying a loose saturated layer of Toyoura sand (Dr=35%) and a dense layer of Toyoura sand (Dr=90%) at the base. The layers had thicknesses of 0.4 m, 0.9 m and 0.5 m, respectively. The submerged sand in front of the sheet pile wall was also loose Toyoura sand with a relative density of 35 %. The

SAND STATE AND PERFORMANCE ANALYSIS OF …

SAND STATE AND PERFORMANCE ANALYSIS OF MICROPILES Abstract by SHANZHI SHU, Ph.D. Washington State University December 2005 Chair: Balasingam Muhunthan The incomplete description of the state of sand in current micropile design and past full scale tests have resulted in a number of anomalous results. A state dependent

Nonlinear seismic soil–pile–structure interactions ...

The present study continues the line of works on shaking table tests on the soil–pile–structure system. The main focus of the present study is to report a newly observed phenomenon in our shaking table tests—pounding between soil and pile when a soil–pile–structure model is subject to seismic excitations.

Yousif. J. al – Shakarchi's research works | University of ...

Yousif. J. al – Shakarchi's 6 research works with 14 citations and 1,623 reads, including: The geotechnical maps for the soil of the governorates Baghdad, Diyala, Wasit and Babylon

Shaking Table Tests of Seismic Pile-Soil-Pier Structure ...

Shaking Table Tests of Seismic Pile-Soil-Pier-Structure Interaction ... becoming popular ways to study the behavior of pile- supported structure in different soil type [2,3,4,5,6]. Numerous ... piles in loose sand and the major finds from the tests.