Ground Vibration Caused by Dynamic Excitation on Pile Foundation

2010 ◽  
Author(s):  
Xuecheng Bian ◽  
Guang Song ◽  
Yunmin Chen ◽  
Hirokazu Takemiya
Keyword(s):  
Pile Foundation ◽  
Ground Vibration ◽  
Dynamic Excitation

scholarly journals Simultaneous Measurements of the Vehicle, Track, and Soil Vibrations at a Surface, Bridge, and Tunnel Railway Line

2017 ◽  
Vol 2017 ◽  
pp. 1-18 ◽  
Author(s):  
Lutz Auersch
Keyword(s):  
High Frequency ◽  
Ground Vibration ◽  
Soil Surface ◽  
Slab Track ◽  
Railway Line ◽  
Dynamic Excitation ◽  
Ballast Track ◽  
Measuring Campaign ◽  
Complex Measuring ◽  
Good Agreement

A complex measuring campaign has been performed including the simultaneous measurement of vehicle, track, and soil vibrations during train runs at 16, 25, 40, 63, 80, 100, 125, 140, and 160 km/h and impulse measurements of the passenger car, three track sections, and the soil. A ballast track on the soil surface and on a concrete bridge has been investigated as well as a slab track in a tunnel. The evaluation and comparison of all these data show a generally good agreement for all components if the strong low- and high-frequency cut-off characteristics of the layered and damped soil are incorporated. There is a strong causal correlation between the vehicle and the soil by the dynamic excitation forces and a weak relation between the track and the soil by the axle-sequence spectrum of the train. However, the similarity between the axle-impulse spectrum observed at the track and the spectra of the ground vibration leads to the special excitation component of “scattered axle impulses” which is predominant at the far field points of the soil.

scholarly journals Ultimate Strength of Fixed Offshore Platforms Subjected to Near-Fault Earthquake Ground Vibration

2015 ◽  
Vol 2015 ◽  
pp. 1-19 ◽  
Author(s):  
Hesam Sharifian ◽  
Khosro Bargi ◽  
Mohamad Zarrin
Keyword(s):  
Ultimate Strength ◽  
Pile Foundation ◽  
Fragility Curves ◽  
Nonlinear Behavior ◽  
Ground Vibration ◽  
Offshore Platforms ◽  
Near Fault ◽  
Key Factor ◽  
The Persian Gulf ◽  
Proportional Distribution

The pile foundation nonlinearity and its influence on the ultimate capacity of fixed platforms have not comprehensively been covered by previous researchers. In this study, the seismic behavior and capacity of a newly designed and installed Jacket Type Offshore Platform (JTOP) located in the Persian Gulf is investigated by conducting Incremental Dynamic Analysis (IDA) using a suit of near-fault ground motions. Additionally, two modified models of the original platform are created by slightly increasing the diameter of the pile foundation and also softening the jacket part for evaluating the importance of the pile foundation and seismic soil-pile structure interaction on the dynamic characteristics of the JTOPs. Valuable discussions are provided to explore various aspects of the dynamic behavior of JTOPs by presenting individual and multirecords IDA curves using effective Engineering Demand Parameters (EDPs). Comparing the results of the three platform collapse fragility curves, it is concluded that the pile foundation plays a very important role in the dynamic response of offshore platforms and can drastically alter the ultimate strength of the platform together with its collapse capacity. It is observed that the proportional distribution of nonlinear behavior in the pile foundation and jacket part is the key factor in the enhancement of the ultimate strength of JTOPs. On the basis of the results derived from this paper, it is recommended that some basic requirements should be developed in order to ensure that the coupling ductility of pile foundation and jacket part is optimized during the design process. Furthermore, according to the findings from this study, some practice recommendations are presented to be devised within the design step.

Numerical Analysis of Ground Vibration Induced by High-Speed Train on Viaduct

2011 ◽  
Vol 66-68 ◽  
pp. 937-943
Author(s):  
Zheng Hui Li ◽  
Yan Mei Cao ◽  
He Xia
Keyword(s):  
Numerical Analysis ◽  
Pile Foundation ◽  
High Speed ◽  
Numerical Models ◽  
Damping Ratio ◽  
Ground Vibration ◽  
Bridge Pier ◽  
High Speed Train ◽  
Foundation Soil ◽  
Train Speed

In order to study the ground vibrations induced by high-speed train passing on viaduct, two FEM sub-models, the train-bridge-pier model and the pile foundation-soil model, are established by means of the software of ANSYS. The effectiveness of the numerical models is tested and verified by comparing with other existed results. Moreover, the influences of different train speed and the damping ratio of soil on ground vibration are analyzed.

scholarly journals Aseismic pile foundation design analysis

1993 ◽  
Vol 26 (1) ◽  
pp. 49-160 ◽  
Author(s):  
M. J. Pender
Keyword(s):  
Pile Foundation ◽  
Field Testing ◽  
Worked Examples ◽  
Design Analysis ◽  
Pile Foundations ◽  
Preliminary Design ◽  
Foundation Design ◽  
Main Thrust ◽  
Dynamic Excitation ◽  
Seismic Forces

Methods of assessing, for preliminary design purposes, the stiffness and capacity of pile foundations under seismic forces are presented. Although the main thrust of the paper is to aseismic design the methods are applicable to other forms of dynamic excitation of pile foundations. Emphasis is placed on expressions for pile stiffness and capacity in the form of simple formulae that can be incorporated into spreadsheet or similar types of software. The use of the equations is illustrated with a number of worked examples. Where possible the methods are justified by data from field testing of foundations at prototype scale.

Analisis Daya Dukung Tanah Dan Bahan Pondasi Tiang Pancang Pada Pembangunan Jembatan Kab. Jombang

2020 ◽  
Vol 9 (1) ◽  
pp. 32-37
Author(s):  
Ruslan Hidayat ◽  
Saiful Arfaah
Keyword(s):  
Carrying Capacity ◽  
Pile Foundation ◽  
Heavy Traffic ◽  
Traffic Volume ◽  
Material Strength ◽  
Cone Penetrometer ◽  
The Village

One of the most important factors in the structure of the pile foundation in the construction of the bridge is the carrying capacity of the soil so as not to collapse. Construction of a bridge in the village of Klitik in Jombang Regency to be built due to heavy traffic volume. The foundation plan to be used is a pile foundation with a diameter of 50 cm, the problem is what is the value of carrying capacity of soil and material. The equipment used is the Dutch Cone Penetrometer with a capacity of 2.50 tons with an Adhesion Jacket Cone. The detailed specifications of this sondir are as follows: Area conus 10 cm², piston area 10 cm², coat area 100 cm², as for the results obtained The carrying capacity of the soil is 60.00 tons for a diameter of 30 cm, 81,667 tons for a diameter of 35 cm, 106,667 tons for a diameter of 40 cm, 150,000 tons for a diameter of 50 cm for material strength of 54,00 tons for a diameter of 30 cm, 73,500 tons for a diameter of 35 cm, 96,00 tons for a diameter of 40 cm, 166,666 tons for a diameter of 50 cm

FEATURES OF SIMULATING THE FORCE ACTIONS FROM A DAMAGED ENGINE AT GROUND VIBRATION TESTS OF AN AIRPLANE

2016 ◽  
Vol 47 (6) ◽  
pp. 649-663
Author(s):  
Regina Vladimirovna Leonteva ◽  
Vsevolod Igorevich Smyslov
Keyword(s):  
Ground Vibration ◽  
Vibration Tests

ASSESSMENT OF THE GROUND VIBRATION GENERATED BY BLASTING IN QUARRIES

2019 ◽  
Vol 18 (4) ◽  
pp. 817-824
Author(s):  
Edward Gheorghiosu ◽  
Attila Kovacs ◽  
Gabriel Dragos Vasilescu ◽  
Daniela Carmen Rus ◽  
Florin Radoi
Keyword(s):  
Ground Vibration
Sign in / Sign up

Export Citation Format

Share Document