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machine behavior on a foundation of sand:

Investigation of the behavior of shallow machine ...

2020-7-1 · The used foundation was with dimension 200*200*20 mm and the geogrid was used as reinforcement material. For each amplitude and frequency of load, the sand models were tested without and with reinforcement in various configurations (0.5B, 1B using single reinforcement layer and 0.5B, 1B using double reinforcement layers) where B is the square footing width.

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Mechanical Behavior of Dam Foundation with Vertical

Vertical sand drains can shorten the path of water flow inside the soil and speeds up soil consolidation. This study investigated the effect of sand drains in the foundation of the Sombar Dam in Iran on its mechanical behavior. The Sombar Dam is a project to control flooding and provide agricultural water to Gholaman city in northeastern Iran.

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Load-bearing behavior of suction bucket foundations

2013-10-1 · Numerical simulations were first performed on a reference model in order to analyze and discuss the bearing behavior of a bucket in sand in detail. A reference bucket with a skirt length of L = 9 m and a diameter of D = 12 m (L/D = 0.75) in very dense sand was considered. Analyses were conducted under 10 MN vertical loading which is typical for a large (5 MW) offshore wind turbine.

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Settlement Behavior of a Shallow Foundation in Dry

A series of test data including acceleration of different depths in the soil, on the soil box, the foundation and at levels on the structure; settlement measurements of the foundation and at the free-field soil surface; deformation and strain along the soil box boundary and relative density of dry sand for different input motions were achieved.

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The influence of foundation stiffness on the behaviour

Abstract: The objective of this study was to determine whether the contact stress distribution underneath a strip footing on dense cohesionless sand can be predicted as a function of the properties of the footing and that of the underlying sand. Together, the footing and the underlying sand form a foundation system which can be classified in ...

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Dynamic behavior of a square foundation in planar

Abstract A comprehensive experimental study was conducted to explore the dynamic soil-structure interaction problem of square footings resting on a sand stratum by means of centrifuge modeling. To capture the horizontal, vertical and rocking response characteristics of the foundation, a program of forced hybrid-mode vibration tests in the form of eccentric vertical excitation on 4 foundation models

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International Journal of Engineering Research and

2014-6-15 · An Investigation on Behavior of Centrally Loaded Shallow Foundation on Sand Bed Reinforced with Geogrid S.Panda1, N.H.S Ray2 1Faculty, Department of civil Engineering, CEB, Bhubaneswar, BPU, Odisha, India 2 Faculty, Department of Mechanical Engineering, CEB, Bhubaneswar, BPU, Odisha, India E-mail- [email protected]

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LOAD CARRYING CAPACITY OF SKIRTED FOUNDATION

2013-12-12 · SKIRTED FOUNDATION ON SAND A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF Master of Technology In CIVIL ENGINEERING (GEOTECHNICAL ENGINEERING) By SungyaniTripathy Roll no-211ce1234 Under the guidance of Prof. S. P. Singh DEPARTMENT OF CIVIL ENGINEERING NATIONAL INSTITUTE OF TECHNOLOGY,

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Foundation Isolation Solutions for Equipment & Machines

2019-11-6 · machine directly on vibration isolators. An integral part of many machine tool and equipment installations is a properly designed and isolated foundation. Design Services Our Engineering group will assist you with design solutions for your machinery or equipment foundation including; structural design and dynamic analysis, finite element ...

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13. AN INTRODUCTION TO FOUNDATION ENGINEERING

2009-2-23 · The foundation is that portion of a structure that transmits the loads from the structure to the underlying foundation material. There are two major requirements to be satisfied in the design of foundations: (a) Provision of an adequate factor of safety against failure of the foundation material.

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Mechanical Behavior of Dam Foundation with Vertical

Vertical sand drains can shorten the path of water flow inside the soil and speeds up soil consolidation. This study investigated the effect of sand drains in the foundation of the Sombar Dam in Iran on its mechanical behavior. The Sombar Dam is a project to control flooding and provide agricultural water to Gholaman city in northeastern Iran.

Read More
Load-bearing behavior of suction bucket foundations

2013-10-1 · Suction buckets are a promising foundation solution for offshore wind energy systems. The bearing behavior of monopod buckets under drained monotonic loading in very dense and medium dense sand is investigated in this study by means of numerical simulation with the finite element method.

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The influence of foundation stiffness on the behaviour

Together, the footing and the underlying sand form a foundation system which can be classified in terms of relative stiffness. Centrifuge model tests were conducted on seven aluminium footings of various depths and hence stiffness, and one reinforced concrete footing, during which the qualitative variation in contact stress distribution ...

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Dynamic behavior of a square foundation in planar

Dynamic behavior of a square foundation in planar motion on a sand stratum @article{Pak2012DynamicBO, title={Dynamic behavior of a square foundation in planar motion on a sand stratum}, author={R. Pak and Mahdi Soudkhah and J. Ashlock}, journal={Soil Dynamics and Earthquake Engineering}, year={2012}, volume={42}, pages={151-160} }

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International Journal of Engineering Research and

2014-6-15 · An Investigation on Behavior of Centrally Loaded Shallow Foundation on Sand Bed Reinforced with Geogrid S.Panda1, N.H.S Ray2 1Faculty, Department of civil Engineering, CEB, Bhubaneswar, BPU, Odisha, India 2 Faculty, Department of Mechanical Engineering, CEB, Bhubaneswar, BPU, Odisha, India E-mail- [email protected]

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LOAD CARRYING CAPACITY OF SKIRTED FOUNDATION

2013-12-12 · skirted foundation on sand ” being submitted by SUNGYANI TRIPATHYtowards the fulfilment of the requirement for the degree of Master of Technology in Geotechnical Engineering at Department of Civil Engineering, NIT Rourkela is a record of bonfire work carried out by her under my guidance and supervision. ...

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VIBRATION ABSORPTION AND ISOLATION IN

2009-8-7 · A schematic sketch of a machine foundation on absorbers is shown in Fig. 1a, and the commonly used model for analyzing this system is shown in Fig. 2b. Figure 2 a) Schematik diagram of a foundation on absorbers (supported type), b) Equivalent two-spring-mass model of foundation absorber system, c) Free-body diagram. Each of the rigid masses m

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Foundation Isolation Solutions for Equipment & Machines

2019-11-6 · machine directly on vibration isolators. An integral part of many machine tool and equipment installations is a properly designed and isolated foundation. Design Services Our Engineering group will assist you with design solutions for your machinery or equipment foundation including; structural design and dynamic analysis, finite element ...

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MACHINE-FOUNDATION (1).docx - MACHINE

A foundation cross section has a bed plate measurement of 3’x9’. The uniform clearance on each side is 1 ft. The height of foundation is 5ft. If the weight of the steel bar reinforcements needed is ½% of weight of foundation, find the weight of the foundation in pounds. 26. A machine foundation has a trapezoidal cross section with bases of

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Foundation Vibration Isolation Methods

2008-2-1 · Foundation vibrations may result in differential settlement of foundation, deformation and cracks which may greatly disturb the operation of the machine. Potential uneven wear may result in running hot or even in shaft failure with subsequent standstillness of the machine and perhaps the shutdown of works involving serious loss in production.

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Mechanical Behavior of Dam Foundation with Vertical

Vertical sand drains can shorten the path of water flow inside the soil and speeds up soil consolidation. This study investigated the effect of sand drains in the foundation of the Sombar Dam in Iran on its mechanical behavior. The Sombar Dam is a project to control flooding and provide agricultural water to Gholaman city in northeastern Iran.

Read More
Effect of mode of vibration on the response of

In this paper, the influence of the following parameters on different modes of vibration response of model footings on sand is studied: (vertical, rocking and pitching load amplitude and frequency). To achieve the objective of this study, the model footing was selected to be rectangular footing with an aspect ratio (L/B= 1.33) i.e (L= length and B= width).

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VIBRATION ABSORPTION AND ISOLATION IN

2009-8-7 · A schematic sketch of a machine foundation on absorbers is shown in Fig. 1a, and the commonly used model for analyzing this system is shown in Fig. 2b. Figure 2 a) Schematik diagram of a foundation on absorbers (supported type), b) Equivalent two-spring-mass model of foundation absorber system, c) Free-body diagram. Each of the rigid masses m

Read More
Foundation Isolation Solutions for Equipment & Machines

2019-11-6 · machine directly on vibration isolators. An integral part of many machine tool and equipment installations is a properly designed and isolated foundation. Design Services Our Engineering group will assist you with design solutions for your machinery or equipment foundation including; structural design and dynamic analysis, finite element ...

Read More
MACHINE-FOUNDATION (1).docx - MACHINE

A foundation cross section has a bed plate measurement of 3’x9’. The uniform clearance on each side is 1 ft. The height of foundation is 5ft. If the weight of the steel bar reinforcements needed is ½% of weight of foundation, find the weight of the foundation in pounds. 26. A machine foundation has a trapezoidal cross section with bases of

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Understanding the Behavior of a Pile Foundation in ...

2020-10-13 · The dynamic behavior of a bridge pile in unsaturated soil is simulated using an improved simplified finite element model, which incorporates the Rayleigh damping model into the formulation. In the modeling, the stress-strain behavior of the soil is modeled using an elastoplastic constitutive model for unsaturated soil based on a

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Foundation Shock and Vibration Isolation Systems for ...

2015-6-30 · Machine on foundation, no isolation Machine on isolated foundation, active shock and vibration Machine on isolated foundation, passive shock and vibration Fig 2.1 Fig 2.2 ... Very dense mixed grain sand 24 10-12 Elastomeric Isolators Limestone 30 10-12 Elastomeric Isolators Hard Sandstone 34 10-12 Elastomeric Isolators

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Foundation Vibration Isolation Methods

2008-2-1 · Foundation vibrations may result in differential settlement of foundation, deformation and cracks which may greatly disturb the operation of the machine. Potential uneven wear may result in running hot or even in shaft failure with subsequent standstillness of the machine and perhaps the shutdown of works involving serious loss in production.

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12. VIBRATION ISOLATION

2002-5-28 · Figure 2. Vibration isolation systems: a) Machine bolted to a rigid foundation b) Supported on isolation springs, rigid foundation c) machine attached to an inertial block d) Supported on isolation springs, non-rigid foundation (such as a floor); or machine on isolation springs, seismic mass and second level of isolator springs

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Seismic Behavior of Turbine-Generator Foundation

2018-1-30 · In order to study seismic behavior of half-speed turbine-generator foundation under horizontal earthquake loading in different directions, the 1/10 scaled model was designed and fabricated. The rigid foundation of half-speed turbine-generator sets can be seen as a complex space frame system. The tests were conducted under eight earthquake waves in two directions separately.

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