Experimental Study for Prediction of Ground Vibration Responses by the Low-vibration Pile Driving Methods

A novel three-dimensional (3D) coupled train-track-soil interaction model is developed based on the multi-body simulation (MBS) principle and finite element modeling (FEM) theory using LS-DYNA. The novel model is capable of determining the highspeed effects of trains on track and foundation. The soils in this model are treated as saturated media. The wheel-rail dynamic interactions under the track irregularity are developed based on the Hertz contact theory. This model was validated by comparing its numerical results with experimental results obtained from field measurements and a good agreement was established. The one-layered saturated soil model is firstly developed to investigate the vibration responses of pore water pressures, effective and total stresses, and displacements of soils under different train speeds and soil moduli. The multi-layered soils with and without piles are then developed to highlight the influences of multi-layered soils and piles on the ground vibration responses. The effects of water on the train-track dynamic interactions are also presented. The original insight from this study provides a new and better understanding into saturated ground vibration responses in high-speed railway systems using slab tracks in practice. This insight will help track engineers to inspect, maintain, and improve soil conditions effectively, resulting in a seamless railway operation.

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Research of Vibration Analysis and Monitoring during the Pile Driving

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.368-370.1693 ◽

2013 ◽

Vol 368-370 ◽

pp. 1693-1696

Author(s):

Ze Pei Xu ◽

Xi Bing Li

Keyword(s):

Impact Evaluation ◽

Mechanical Vibration ◽

Ground Vibration ◽

Vibration Monitoring ◽

Vibration Velocity ◽

Pile Driving ◽

Effect Evaluation ◽

Monitoring Point ◽

Surrounding Environment ◽

Function Relationship

Ground vibration caused by pile driving is a kind of mechanical vibration, and the research of its characteristics is the premise of the effect evaluation on surrounding environment. With the engineering example by the analysis of vibration monitoring, the results show that the vibration frequency is low, and there is a power function relationship between the vibration velocity and the distance from monitoring point to the pile. It can be used for impact evaluation of vibration according to the fitting equation.

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Instrumentation System for Ground Vibration Analysis During Sheet Pile Driving

Geotechnical Testing Journal ◽

10.1520/gtj20140275 ◽

2015 ◽

Vol 38 (6) ◽

pp. 20140275 ◽

Cited By ~ 1

Author(s):

Fanny Deckner ◽

Kenneth Viking ◽

Claire Guillemet ◽

Staffan Hintze

Keyword(s):

Vibration Analysis ◽

Ground Vibration ◽

Pile Driving ◽

Sheet Pile

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Experimental Study on Ground Vibration Induced by Moving Trains on Test Line of Metro Depot

Advances in Soil Dynamics and Foundation Engineering ◽

10.1061/9780784413425.006 ◽

2014 ◽

Author(s):

Zemin Zeng ◽

Yimin Wang ◽

Chao Zou ◽

Luo Zhang

Keyword(s):

Experimental Study ◽

Test Line ◽

Ground Vibration

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Experimental Study on the Possibilities to Decrease the Coefficient of Restitution after Impact

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.217-219.1659 ◽

2012 ◽

Vol 217-219 ◽

pp. 1659-1662 ◽

Cited By ~ 3

Author(s):

Todor Nikolov Penchev ◽

Ivan Lyubomirov Altaparmakov ◽

Dimitar Nedelchev Karastojanov

Keyword(s):

Experimental Study ◽

Laboratory Test ◽

Experimental Research ◽

Rocket Engine ◽

Coefficient Of Restitution ◽

Compressed Air ◽

Pile Driving ◽

Additional Force ◽

Forging Die ◽

Two Bodies

Technological processes such as forging, die forging, pile driving, etc., are realized as a result of a collision between two bodies. The bodies’ rebound after the collision takes place due to the use of part of the energy of the hit for their elastic deformation. The paper presents results from an experimental research on the possibilities of the decrease of rebound, by the use of an additional force during the hit. A laboratory test-stand is described in which an additional force is created by the use of a cold rocket engine, working with compressed air.

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