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Behaviour of machine foundations resting on saturated sand

Nov 01, 2018· This study aims to investigate the behaviours of machine foundations resting on sand granular tire rubber mixtures after saturation. Kerbala sand with two relative densities, 35% and 60%, and granular rubber of sizes 0.07 to 3 mm, resulting from hashing scrap tires into small pieces, were used. A harmonic vertical mode of vibration was applied using a mechanical oscillator fixed on a square

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Behaviour of machine foundations resting on saturated sand inside a steel box of size 1200×1200×900 mm. Nine model tests were carried out on saturated sand to study the effects

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(PDF) The Effect of Machine Vibration on the Settlement

ABSTRACT This paper focuses on the effect of machine vibration on the variation of excess pore water pressure and settlement of saturated sand. A special setup is designed and manufactures to simulate the vertical vibration of the machine. A total

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(PDF) Numerical Analysis of Machine Foundation Resting on

ABSTRACT The behavior of machine foundation on saturated porous medium can be considered as a complicated geotechnical problem due to nature of dynamic loads and plasticity of soil which make the analysis and design of foundation subjected to dynamic . Effect of Embedment Depth on Response of Machine Foundation on Saturated Sand.

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Vibration Response of Saturated Sand Foundation System

In this study, the response and behavior of machine foundations resting on dry and saturated sand was investigated experimentally. A physical model was manufactured to simulate steady state

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Stresses and Pore Water Pressure Induced by Machine

The response and behavior of machine foundations resting on dry and saturated sand was investigated experimentally by Fattah et al. (2017). In order

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Effect of Embedment Depth on Response of Machine

Up to10%cash back· Jul 26, 2015· In this paper, a dynamic analysis of strip machine foundation is carried out. The foundation of multiple thicknesses is placed at different depths above a saturated sand with different states (i.e., loose, medium and dense), and vertical harmonic excitation is applied with build up of the excess pore water pressure being considered. The dynamic analysis is performed

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Dynamic Response of Saturated Soil Foundation System

Sep 16, 2016· In this study, the response and behavior of machine foundations resting on dry and saturated sand was investigated experimentally. In order to investigate the response of soil and footing to steady state dynamic loading, a physical model was manufactured to simulate steady state harmonic load at different operating frequencies.

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(PDF) Numerical Analysis of Machine Foundation Resting on

ABSTRACT The behavior of machine foundation on saturated porous medium can be considered as a complicated geotechnical problem due to nature of dynamic loads and plasticity of soil which make the analysis and design of foundation subjected to dynamic . Effect of Embedment Depth on Response of Machine Foundation on Saturated Sand.

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Dynamic Response of Saturated Soil Foundation System

Sep 16, 2016· In this study, the response and behavior of machine foundations resting on dry and saturated sand was investigated experimentally. In order to investigate the response of soil and footing to steady state dynamic loading, a physical model was manufactured to simulate steady state harmonic load at different operating frequencies.

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Impact Induced Responses of Saturated and Dry Dense Sand

A small-scale model is implemented to simulate a physical model of machine foundation resting on a dry or saturated soil medium under impact load. The total number of tests was 16 models. The dynamic system is the soil medium through which waves propagate outward from sources of impact load.

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machine foundation on behaviour of sand

machine foundation on behaviour of sand . How Different Soils Affect Concrete Building Foundations. Sand does not take on water like clay and peat. This means that a concrete foundation constructed on sandy soil does not generally have an increased risk of cracking as a result of fluctuating water content in the surrounding ground.

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Dynamic Response of Saturated Soil Foundation System

In this study, the response and behavior of machine foundations resting on dry and saturated sand was investigated experimentally. In order to investigate the response of soil and footing to steady state dynamic loading, a physical model was manufactured to simulate steady state harmonic load at different operating frequencies. Total of 84 physical models were performed.

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A stress–strain description of saturated sand under

Jun 01, 2015· 1. Introduction. Earlier experimental attempts to study the liquefaction behavior of soils date back to the 1960s when Seed and Lee (1966) conducted a series of undrained cyclic triaxial tests on saturated sand and reported that the onset of liquefaction was primarily governed by the relative density of the sand, the confining pressure, the stress or strain amplitude and the number of loading

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Vibration Propagation of Diverse Footings on Saturated Sand

Jan 27, 2018· Dynamic behaviour of diverse footings resting on saturated sand filled in a large model groove was investigated. The vibration parameters include the frequency and waveform, which were related to the footing height, shape, stiffness, and embedment. A vertical-vibration attenuation equation for saturated sand was proposed. Experiments on the dynamic response of the footings resting on

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Load-bearing behavior of suction bucket foundations in sand

Oct 01, 2013· In,Villalobos et al. also presented model scale tests with buckets in dense, saturated sand under moment loading. They proposed a yield surface equation similar to that given in [ 5 ]. One focus of the investigation was the effect of the installation process on the bucket behavior.

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Effect of Modulus of sub grade reactions on the static

Effect of Modulus of sub grade reactions on the static behavior of r aft foundation resting on sand 1 N.V.Manjunath ,2 B.Soundara 3 M.Ranjitham 1 Assistant Pro fessor, Department of Civil Engineering ., Bannari Amman Institute of technology Sathyamangalam,Erode, Tamilnadu, India.

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Behaviour of jacked and driven piles in sandy soil

Compared with conventional driven piles, the behaviour of jacked piles in sand and/or sandy soil is poorly understood, mainly because of the lack of field experience and a high-quality load test database. In a few field studies on the behaviour of driven piles in sand (Lehane et al., 1993; Chow, 1995), jacking was used instead of dynamic driving

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SOIL-PILE-STRUCTURE INTERACTION Geotechnical

• Dynamic Group Pile Effects from scaled testing (Lok (1999) • Effect of liquefaction was only considered in the saturated foundation soils. However, the impact on the embankment was considered. • These different geotechnical components were assembled around the structure to simulate dynamic behavior. Other Considerations SPSI 28

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RESONANCE FREQUENCY OF MACHINE FOUNDATIONS

study, machine foundations on fully saturated sandy soil in different cases of soil densification (loose, medium and dense sand) are analyzed. harmonic dynamic load is considered. A A parametric study is carried out to investigate the effect of several parameters including: the amplitude of the dynamic load and the frequency of the dynamic load.

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Shear Strength of Sand: Characteristics and Factors Soil

ADVERTISEMENTS: In this article we will discuss about the characteristics and factors affecting the sheer strength of sand. Shear Strength Characteristics of Sand: Shear strength characteristics of sandy soils depend on the drainage conditions in addition to several other param­eters as discussed in the following subsections. 1. Shear Strength Characteristics of Saturated Sands during Drained

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Soil Properties and the Unified Soil Classification System

Sand particles pass a 425-µm sieve and are retained on a 75-µm (No. 200) sieve. Fines are soil particles that pass a 75-mm sieve; they are further characterized as silt or clay, based on their plasticity. a. Gravel and Sand. Gravel and sand have essentially the same

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Vibration response of saturated sand foundation system

Jul 25, 2016· In this study, the response and behavior of machine foundations resting on dry and saturated sand was investigated experimentally. A physical model was manufactured to simulate steady state harmonic load applied on a footing resting on sandy soil at different operating frequencies. Total of (84) physical models were performed. The parameters that were taken into consideration include

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Consolidation Behavior for Saturated Sand–Marine Clay

Mar 26, 2017· Laboratory tests on sand–marine clay mixtures reveal that the effect of sand mass fraction on the overall consolidation behavior is negligible for a sand mass fraction of 20% or less. Further increase of the sand fraction significantly affects the overall consolidation process.

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SOIL-PILE-STRUCTURE INTERACTION Geotechnical

• Dynamic Group Pile Effects from scaled testing (Lok (1999) • Effect of liquefaction was only considered in the saturated foundation soils. However, the impact on the embankment was considered. • These different geotechnical components were assembled around the structure to simulate dynamic behavior. Other Considerations SPSI 28

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Numerical modelling of energy piles in saturated sand

Apr 01, 2015· To investigate the heating effects on the head settlement patterns and axial capacity of single energy piles in medium dense saturated sand, Ng et al. recently performed a series of centrifuge tests. These tests have demonstrated the significant impact that increasing temperature variations have on the behaviour of energy piles by the

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Effect of Modulus of sub grade reactions on the static

Effect of Modulus of sub grade reactions on the static behavior of r aft foundation resting on sand 1 N.V.Manjunath ,2 B.Soundara 3 M.Ranjitham 1 Assistant Pro fessor, Department of Civil Engineering ., Bannari Amman Institute of technology Sathyamangalam,Erode, Tamilnadu, India.

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Behaviour of jacked and driven piles in sandy soil

Compared with conventional driven piles, the behaviour of jacked piles in sand and/or sandy soil is poorly understood, mainly because of the lack of field experience and a high-quality load test database. In a few field studies on the behaviour of driven piles in sand (Lehane et al., 1993; Chow, 1995), jacking was used instead of dynamic driving

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MOISTURE CONTENT OF SAND Columbia Machine

Example No. 1: (A) equals weight of damp sand as received or as weighed into weigh batcher. (B) equals saturated surface dry condition of the same sand. (A) equals 520 grams. (B) equals 500 grams. 520 500 X 20 x 100 4.00% of Moisture in Sand by Weight 500 500

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Shear Strength of Sand: Characteristics and Factors Soil

ADVERTISEMENTS: In this article we will discuss about the characteristics and factors affecting the sheer strength of sand. Shear Strength Characteristics of Sand: Shear strength characteristics of sandy soils depend on the drainage conditions in addition to several other param­eters as discussed in the following subsections. 1. Shear Strength Characteristics of Saturated Sands during Drained

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Soil and Foundation Challenges Ground Improvement Techniques

Loose sand can be subject to large settlements, and these settlements tend to occur quickly due to the free-draining granular nature of sands. This can pose foundation challenges and loose sand requires densification in order to provide sufficient settlement control and bearing for new structures.

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Geology Final Flashcards Quizlet

A hill consisting of loose, dry sand that slopes at the angle of repose and has no vegetation _____. is stable unless oversteepened by excavation may flow if it becomes saturated with water

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Seismic Response of Shallow Foundation on Liquefiable Sand

The base of each model was excited in flight by horizontal shaking simulating an earthquake; in all cases this shaking liquefied the sand in the free field. The first series of tests (series C) focused on the effect of the depth of soil compacted under the foundation on the footing acceleration and settlement.

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PILE FOUNDATIONS IN LIQUEFIED AND LATERALLY

A series of large-scale dynamic centrifuge model tests were performed to study the behavior of single piles and pile groups in a soil profile comprised of a nonliquefied crust spreading laterally over a loose saturated sand layer. Detailed 5.3.3 Effect of Liquefaction on Sand p-y Curves 5.3.4 Effect

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‪Nahla M. Salim‬ ‪Google Scholar‬

Effect of embedment depth on response of machine foundation on saturated sand MY Fattah, NM Salim, WT Al-Shammary Arabian Journal for Science and Engineering 40 (11), 3075-3098,2015

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Experimental investigation of the influence of bedding

Jul 18, 2020· Ishihara K, Okada S (1982) Effects of large preshearing on cyclic behavior of sand. Soil Found 22:109–125. Article Google Scholar Leng Y, Luan MT, Xu CS (2008) A comparative study of drained and undrained shear behavior of saturated sands. Journal of Disaster Prevention and Mitigation Engineering 28:144–151