Results 11 to 20 of about 568 (210)

A constitutive model for cyclic densification of coarse-grained soil filler for the high-speed railway subgrade considering particle breakage [PDF]

open access: yesRailway Sciences, 2022
Purpose – This study aims to propose a semiempirical and semitheoretical cyclic compaction constitutive model of coarse-grained soil filler for the high-speed railway (HSR) subgrade under cyclic load.
Yangsheng Ye   +5 more
doaj   +1 more source

Triaxial Creep Test and Particle Flow Simulation of Coarse-Grained Soil Embankment Filler

open access: yesFrontiers in Earth Science, 2020
In order to study the creep characteristics of the coarse-grained soil as embankment filler under long-term vehicle loading, the creep test was performed on coarse-grained soil using the large scale dynamic and static triaxial instruments, and the creep ...
Zhongming He   +3 more
doaj   +1 more source

Seepage and Dynamic Characteristics of Carbonaceous Mudstone Coarse-Grained Soil Embankment with Different Gradations

open access: yesAdvances in Civil Engineering, 2021
This study investigates the seepage and deformation characteristics of carbonaceous mudstone coarse-grained soil embankment with different gradations under the action of dynamic load and rainfall.
Zhong-ming He   +3 more
doaj   +1 more source

Formula for permeability coefficient of coarse-grained soil based on parameters of two-dimensional fractal gradation model

open access: yesYantu gongcheng xuebao, 2023
The coarse-grained soil is widely distributed in nature and used in engineering. The permeability is one of its key properties, and for the same type of coarse-grained soil, its permeability is almost determined by the grain-size distribution and the ...
QU Shizhang 1, LIU Xiaoming 1, LI Li 1, 2, CHEN Renpeng 1, 2
doaj   +1 more source

Dynamic reserves of evaluation model for materials source in the channel based on fractal theory and model test

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2022
After the Wenchuan earthquake, many loose solid sources accumulated in the channel, which increased the probability of debris flow. It was difficult to calculate the dynamic reserves of debris flow sediment source accurately. Based on field investigation,
Youyi ZHANG, Yunjun WANG, Yadong YUAN
doaj   +1 more source

Study on Rheological Properties of Mountains Area Coarse - Grained Soil Embankment and Settlement Prediction Method

open access: yesChemical Engineering Transactions, 2016
Coarse-grained soil can used as high filling embankment in mountainous area, but rheological deformation of coarse-grained soil continue long time, which may cause the transfinite of post-construction settlement under long-term load.
P. Yang
doaj   +1 more source

Effect of Gradation on the Compactability of Coarse-Grained Soils

open access: yesKSCE Journal of Civil Engineering, 2020
The optimal gradation for coarse-grained soil used in earth-rockfill dams is an essential design index when determining the compactability of coarse-grained soil. With the optimal gradation, coarse-grained soil can be rolled to the maximum of dry densities among all gradations under the same compaction effort.
Erlu Wu   +3 more
openaire   +1 more source

Influence of coarse-grained content in the gravelly soil on steady seepage of high earth-rock dam

open access: yesShuili Shuiyun Gongcheng Xuebao, 2021
Gravelly soil has been mostly used as the core material of the high earth-rock dam. When the coarse-grained content of a gravelly soil (referring to the mass fraction, the same below) may exceed 50%, the coefficient of permeability of a gravelly soil is ...
CHANG Liying, YE Faming, CHEN Qun
doaj   +1 more source

Macro-Micromechanical Properties of Sandy Pebble Soil of Different Coarse-Grained Content

open access: yesEarth Sciences Research Journal, 2018
Sandy pebble stratum is a typical discrete particle unstable stratum, mainly consisting of sand and pebble. However, the effect of coarse-grained content on the stability of stratum is not clear.
Junfu Lu   +3 more
doaj   +1 more source

Measuring method for membrane penetration capacity of coarse-grained soil in triaxial tests

open access: yesYantu gongcheng xuebao, 2021
The membrane penetration effects displayed in the coarse-grained soil tests will distort the measurement of volume deformation of samples, thereby affecting the measuring accuracy of strength and deformation index.
XU Wei-wei 1, CHEN Sheng-shui 1, 2, FU Zhong-zhi 1, 2, JI En-yue 1, 2
doaj   +1 more source

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