Liang Chen

Dr. Liang Chen


Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 May 2019 in Journal of Environmental Management
Verified
Journal Article
Closed access
HXHaoqing Xu
Haoqing Xu
SSShi Shu
Shi Shu
SWShengwei Wang
Shengwei Wang
AZAizhao Zhou
Aizhao Zhou
PJPengming Jiang
Pengming Jiang
LCLiang Chen
Liang Chen

31 July 2011 in Mining Science and Technology (China)
Verified
Journal Article
Closed access
LCLiang Chen
Liang Chen
CHChaohu Hou
Chaohu Hou
JCJiansheng Chen
Jiansheng Chen
JXJiting Xu
Jiting Xu

21 December 2022 in Sustainability
Verified
Journal Article
Open access
PDF file
JGJiahui Gu
Jiahui Gu
LCLiang Chen
Liang Chen
YWYu Wan
Yu Wan
YTYaozong Teng
Yaozong Teng
SYShufa Yan
Shufa Yan
LHLiang Hu
Liang Hu
Microplastics are abundant in agricultural soils and have significant impacts on rainfall infiltration and soil water-retaining capacity. To explore the effect of microplastics on agricultural soil permeability by simulating the rainfall irrigation process, a one-dimensional vertical soil column rainfall infiltration test device was used to study the unsaturated infiltration characteristics of loess soil imbued with microplastics under rainfall conditions. The following conclusions could be obtained: the microplastic content (q), the microplastic particle size (p), and the soil density (γ) have effects on rainfall infiltration; the soil water-retaining capacity would be weakened owing to the existence of microplastics; and intermittent rainfall is preferred in agricultural irrigation. Finally, the permeability coefficient (k) and average flow rate (V) of the unsaturated soil are deduced together, and the relationship between the permeability coefficient (k) and the matrix suction (ψ) of the unsaturated loess soil containing microplastics is calculated by an example, proving good consistency between the experimental results and theoretical calculations. Microplastics represent negative effects on rainfall infiltration and soil water retention, so it is recommended to dispose of them.

6 December 2022 in KSCE Journal of Civil Engineering
Verified
Journal Article
Open access
PDF file
GCGuo-Dong Cai
Guo-Dong Cai
LCLiang Chen
Liang Chen
YTYao-Zong Teng
Yao-Zong Teng
ZYZi-Xue Yin
Zi-Xue Yin
ZZZhe Zhang
Zhe Zhang
Internal erosion is one of the important causes of soil damage. In this paper, an erosion-stress coupling apparatus was developed to investigate the mechanical property of soil after internal erosion. Main efforts were devoted to rebuilding pressure cell so that soils can be eroded under confining pressure and deviator pressure. The hydraulic gradient is controlled by using the water-head control method which can provide up to 40 m water-head. The volume change of the sample can also be accurately measured by the volume controller. The eroded particles were collected by the eroded soil collection system. Triaxial consolidation drained shear tests after internal erosion were performed on gap graded soils. It was found that the drainage failure strength and drainage internal friction angle of soil after internal erosion under confining pressure decreased with the increase of fine particle loss. Based on the experimental data, amodified Duncan-Chang model considering fine particle loss was introduced. Numerical modelling of vertical displacement of dam was carried out by using the modified Duncan-Chang model, and it was found that when the fine particle loss exceeds 10%, the displacement increases significantly.

27 September 2013 in European Journal of Environmental and Civil Engineering
Verified
Journal Article
Closed access
LCLiang Chen
Liang Chen
JZJingchuan Zhao
Jingchuan Zhao
GLGang Li
Gang Li
LZLucheng Zhan
Lucheng Zhan
WLWen Lei
Wen Lei
The hydraulic action, such as waves, tides and floods, is the main cause of piping failure in seawall engineering, while the suffusion failure mechanism in this case has not been specially studied. Indoor experimental studies of piping failure of seawall under the waves and tidal water level fluctuations are still in a blank state. Based on the designed experimental devices in the research work, six groups of model tests were carried out with crushed and round gravel. The seepage velocity, seepage gradient, permeability coefficient and the fine particle movement trends were analysed. The changing rules of these variables under water level cycle were studied. It has been found that the critical hydraulic gradient of the fine piping particles inside the seawall became smaller with the increase in water level fluctuation cycles. At the same time, the critical flow velocity tended to increase gradually. The piping occurrence probability in the round gravel-filled seawall was larger than that in the crushed gravel-filled seawall. The internal fine-grained structure showed dynamic changes in migration under the fluctuation of the water level cycle.

14 May 2020 in Natural Hazards
Verified
Journal Article
Closed access
PDF file
LCLiang Chen
Liang Chen
JHJianjian He
Jianjian He
SYSongtang Yang
Songtang Yang
SDShaoqiang Dou
Shaoqiang Dou
DSDengyu Su
Dengyu Su