Results 81 to 90 of about 4,874 (221)

A STUDY ON SAND DIKES AND SAND BOILS CAUSED BY LIQUEFACTION

open access: yesDoboku Gakkai Ronbunshu, 1999
地震によって液状化した地盤の土質特性などを知るために, 液状化で生じた噴砂を採取して分析することがある. しかし, 遺跡で発掘された液状化砂脈の観察により, 砂脈内の粒度組成と液状化層のそれとは異なることが示され, これを根拠に噴砂を分析することの有効性を否定する意見も示されてきた. この相対する見解を検討するために, ここでは, 2つの地震で生じた3つの液状化地点で実施されたトレンチ調査結果を基に, 砂脈内の土の物理的性質, 砂脈形成のメカニズム, 砂脈と噴砂と液状化層の関係の考察を行った. この結果, 砂脈内の土は分級され下方ほど粗くなり, 液状化層や噴砂とは一致しないこと, また, 砂脈内の土に比べ, 噴砂は液状化層の粒度組成に類似することがわかった.
Atsunori NUMATA   +3 more
openaire   +2 more sources

Probability Liquefaction On Silty Sand Layer On Central Jakarta

open access: yes, 2022
Indonesia has a strong earthquake risk. The effects of saturated silty sand liquefaction during earthquakes can be very damaging. Liquefaction is the threats to the safety of structures, and the evaluation of liquefaction potential is essential in ...
Rouf Hasan, Muhammad Fathur   +2 more
core  

Effects of principal stress rotation and drainage on the resilient stiffness of railway foundations

open access: yes, 2013
Railway foundations play an integral role in controlling the stability of the overlying track structure and the maintenance of the overall track geometry.
Mamou, A.
core  

Formulation of low peclet number based grid expansion factor for the solution of the convection-diffusion equation

open access: yes, 2018
Convection-diffusion problems, due to its fundamental nature, are found in various science and engineering applications. In this research, the importance of the relationship between grid structure and flow parameters in such problems is emphasized.
Abdullah, Aslam
core   +1 more source

Numerical Simulation of Liquefaction Deformation of Sand Layer around Bucket Foundations under Dynamic Loadings

open access: yes, 2010
Bucket Foundations under Dynamic Loadings The liquefaction deformation of sand layer around a bucket foundation is simulated under equivalent dynamic ice-induced loadings.
Li C(李驰)   +3 more
core  

Study on Hazard Degree Evaluation of Sand Liquefaction Based on the Generalized Regression Neural Network

open access: yes工程科学与技术, 2009
:The factors which control and affect sand liquefaction, are random and uncertain. Because artificial neural network can consider both quantitative and qualitative factors, it is suitable for solving uncertain problem of the evaluation of sand soil ...
doaj  

An Experimental Study on the Seismic Response of Vertical and Batter Pile Foundations at Coral Sand Sites

open access: yesJournal of Marine Science and Engineering
Liquefaction and earthquake damage to coral sand sites can cause engineering structure failure. Both testing and analyzing the seismic response characteristics of pile groups on coral sand sites are highly important for the seismic design of engineering ...
Zhen Huang   +5 more
doaj   +1 more source

Liquefaction of Sand Due to Multidirectional Cyclic Shear

open access: yesSoils and Foundations, 1982
ABSTRACT A rational method is presented for estimating the effect of multidirectional shaking on the basis of two parameters which can readily be determined from unidirectional cyclic shear tests on saturated sand under undrained conditions. The method is based on the assumptions that the generation of excess pore water pressure due to cyclic shear ...
TOKIMATSU, KOHJI, YOSHIMI, YOSHIAKI
openaire   +2 more sources

Liquefaction resistance of sand reinforced with geosynthetics

open access: yes, 2008
This paper describes an investigation into the performance of geosynthetics in enhancing the resistance to liquefaction of medium dense (Dr = 50%) sand deposits.
Lav M.A., Altun S., Göktepe A.B.
core   +1 more source

Liquefaction and post-liquefaction resistance of sand reinforced with recycled geofibre

open access: yes, 2023
The present study provides an insight into the effect of recycled carpet fibre on the mechanical response of clean sand as backfill material subjected to monotonic loading and cyclic loading as well as post-liquefaction resistance of both unreinforced ...
Rasouli, H, Fatahi, B
core   +1 more source

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