Slope Erosion Monitoring and Anti-erosion

Topic Information

Dear Colleagues,

Soil erosion is a major global problem that generally leads to serious and disastrous consequences with respect to the environment, economy and engineering. The slope erosional process accelerates as it is subjected to the human activities and weak topsoil. As a result, large amounts of fine soil particles and nutrients transported by the runoff from the original land induces a threat to environmental sustainability. Water erosion, as the largest source of global soil erosion, also causes various engineering problems, including road embankment collapses and river bank and slope failures. Worldwide erosion monitoring and anti-erosion efforts should be mounted in view of the high incidence and universality of soil erosion.

The present topic aims to provide a representative and updated collection of research articles and reviews regarding the main processes in slope erosion monitoring and anti-erosion. These studies are expected to address fundamental and applied research questions in the areas of geotechnics, geology engineering, ecology and botany, etc. In order to properly organize this variety of contents, the topic will be joined by the following journals: Sensors, Remote Sensing, Polymers, Nanomaterials and Applied Sciences.

The topic will cover the following subjects and others:

• Slope stability evaluations;
• Ecological restoration of slopes;
• Slope erosion monitoring;
• Slope stability monitoring;
• Water and soil loss assessments;
• Erosion slope restoration.

Prof. Dr. Jin Liu
Dr. Shengyuan Song
Dr. Huilin Le
Dr. Yunjian Li
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Applied Sciences applsci	2.7	4.5	2011	16.9 Days	CHF 2400	Submit
Geomatics geomatics	-	-	2021	18.6 Days	CHF 1000	Submit
Land land	3.9	3.7	2012	14.8 Days	CHF 2600	Submit
Remote Sensing remotesensing	5.0	7.9	2009	23 Days	CHF 2700	Submit
Water water	3.4	5.5	2009	16.5 Days	CHF 2600	Submit

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Published Papers (5 papers)

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All Applied Sciences Geomatics Land Remote Sensing Water

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26 pages, 8270 KiB  

Open AccessArticle

Slope Deformation Mechanisms and Stability Assessment under Varied Conditions in an Iron Mine Waste Dump

by Zhongao Yang, Xiaohua Ding, Xin Liu, Abdoul Wahab, Zhongchen Ao, Ya Tian, Van Son Bang, Zhaoxi Long, Guodong Li and Penglin Ma

Water 2024, 16(6), 846; https://doi.org/10.3390/w16060846 - 15 Mar 2024

Viewed by 754

Abstract

The instability of geological slopes in mining environments poses a significant challenge to the safety and efficiency of operations. Waste Dump#2 at the Ziluoyi Iron Mine in China is a notable case study that highlights the challenges associated with sizable base slopes and [...] Read more.

The instability of geological slopes in mining environments poses a significant challenge to the safety and efficiency of operations. Waste Dump#2 at the Ziluoyi Iron Mine in China is a notable case study that highlights the challenges associated with sizable base slopes and large step heights. To address hidden hazards in the mine and the above issues, an inclusive investigation is carried out to examine the physical and mechanical properties of the soil–rock slope through indoor testing and analyze the deformation mechanisms of the slope using numerical simulations, taking various factors into account. The study reveals that the stability of Waste Dump#2 is deeply affected by weight, groundwater conditions, earthquake loading, and rainfall. To this end, the cohesion and internal friction parameters of the soil–rock slope are first determined through direct shear tests, which show a cohesion of 6.215 kPa at the top of the slope and an internal friction angle of 34.12°. By adopting GEO-SLOPE, 3D Mine, and AutoCAD software, stability calculations of the slope are performed, which give stability coefficients of 1.547 under normal conditions, 1.276 in rainfall, and 1.352 in seismic conditions. These results meet safety standards and ensure the safe and efficient operation of the mine. Full article

(This article belongs to the Topic Slope Erosion Monitoring and Anti-erosion)

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20 pages, 6883 KiB  

Open AccessArticle

Sediment Barriers’ Performance in the Laboratory: Evaluation of Clogging and Filtration Characteristics in Geotextiles Subjected to Discharge Cycles

by Vitor Yudi Góes Adachi, Joan Steven Flores Rodríguez, Mariana Ferreira Benessiuti Motta, Gabriel Orquizas Mattielo Pedroso, Luis Rogerio de Oliveira Hein and Emerson Felipe Félix

Water 2024, 16(1), 107; https://doi.org/10.3390/w16010107 - 27 Dec 2023

Viewed by 743

Abstract

This research aims to assess the clogging process of geotextiles within silt fences. For that purpose, the filtering efficiency, flow rate, and clogging of three geotextiles (GTX-1, GTX-2, and GTX-3) employing two distinct soils and under three sediment discharge cycles were investigated. The [...] Read more.

This research aims to assess the clogging process of geotextiles within silt fences. For that purpose, the filtering efficiency, flow rate, and clogging of three geotextiles (GTX-1, GTX-2, and GTX-3) employing two distinct soils and under three sediment discharge cycles were investigated. The analysis adhered to the American standard D5141-11 and, as further analyses, qualitative and quantitative inspections were conducted through microscopic images of the materials. The results showed greater clogging of the nonwoven geotextile, GTX-1, with higher retention efficiency (approximately 100%) and better turbidity removal for both soils, equal to a reduction of around 94%. For GTX-2, a woven geotextile with a larger pore opening, less intense clogging and lower retention efficiency were observed after the third discharge; the average was 96% for both soils. GTX-3, a woven geotextile with a smaller apparent opening, exhibited a behavior similar to GTX-1: as the number of cycles increased, the material experienced more clogging and higher retention efficiency for soil 1 (approximately 98.5%). Based on these findings, it can be inferred that the discharge cycles impact the tested geotextiles in diverse ways and, therefore, the selection of the material should be contingent on project requirements. Full article

(This article belongs to the Topic Slope Erosion Monitoring and Anti-erosion)

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17 pages, 7852 KiB  

Open AccessArticle

Comparison of Sampling and Grid Methods for Regional Soil Erosion Assessment

by Zhijia Gu, Shaomin Cao, Ao Li, Qiang Yi, Shuang Li and Panying Li

Land 2023, 12(9), 1703; https://doi.org/10.3390/land12091703 - 31 Aug 2023

Viewed by 775

Abstract

To control soil erosion, the intensity, area, and distribution of regional soil erosion must be determined to accurately plan and implement corresponding soil conservation measures. Therefore, regional soil erosion assessment has received extensive attention worldwide. At present, a sampling survey approach and full-coverage [...] Read more.

To control soil erosion, the intensity, area, and distribution of regional soil erosion must be determined to accurately plan and implement corresponding soil conservation measures. Therefore, regional soil erosion assessment has received extensive attention worldwide. At present, a sampling survey approach and full-coverage grid-based calculation are mainly applied in regional soil erosion assessment. The quantitative evaluation of the entire region depends on the quality of the data source. Furthermore, owing to the greatness of the evaluation object, the difficulty of data acquisition, the high cost, and poor usability, the present approach is bound to be at the expense of data accuracy, spatial resolution, time resolution, etc. The sampling survey approach can obtain high-precision data of soil erosion factors. Therefore, it can accurately quantify soil erosion in a field investigation unit. However, the sampling method, sampling density, and extrapolation methods have a significant impact on regional soil erosion assessments. This study considers the case of Baiquan County in the rolling hills of Northeast China as an example. Regional soil erosion evaluation using sampling survey and grid computing were compared. The impact of the data source accuracy on the soil erosion assessment was also quantitatively evaluated. The results of grid method showed a phenomenon of large rates of soil erosion and the ratio of the soil erosion area (the share of areas above the mild level), which were overestimated by 20% and 6%, respectively. A digital elevation model (DEM) with a resolution of 30 m can be used for soil erosion evaluation in plain areas, but that with the same resolution in hilly areas has insufficient calculation accuracy and provides large errors. The grid method can be adopted when land use and soil conservation measures are accurate. Otherwise, the sampling method is recommended. Interpolation of the ratio of the soil erosion area in the survey unit based on land use can better evaluate regional soil erosion. Full article

(This article belongs to the Topic Slope Erosion Monitoring and Anti-erosion)

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18 pages, 11954 KiB  

Open AccessArticle

Study on Roof Instability Effect and Bearing Characteristics of Hydraulic Support in Longwall Top Coal Caving

by Qingliang Zeng, Zhaoji Li, Lirong Wan and Dejian Ma

Appl. Sci. 2023, 13(14), 8102; https://doi.org/10.3390/app13148102 - 11 Jul 2023

Cited by 1 | Viewed by 706

Abstract

In longwall top coal caving (LTCC), due to the fracture and migration of top coal, the roof will break and collapse, which causes serious impact damage to hydraulic support. Therefore, we aimed to reveal the relationship between the roof instability effect and the [...] Read more.

In longwall top coal caving (LTCC), due to the fracture and migration of top coal, the roof will break and collapse, which causes serious impact damage to hydraulic support. Therefore, we aimed to reveal the relationship between the roof instability effect and the bearing characteristics of hydraulic support in the LTCC face. Based on the occurrence conditions of the 08 mining area in the Shilawusu Coal Mine, the instability model of the upper immediate roof was established, and the working resistance of hydraulic support was derived. Secondly, the dynamic coupling model of roof-top coal-hydraulic support was established in LS-DYNA, and the crushing degree of top coal and the bearing characteristics of the hydraulic support in different roof instability fields were analyzed. The results show that the main factors affecting the working resistance of hydraulic support are the fracture position of the upper immediate roof, the acting force of the lower immediate roof, and the distribution of the gangue in the goaf. The rotary instability of the upper immediate roof at the coal wall brings serious impact effects, resulting in fractures in front of the coal wall and a large amount of crushed coal concentrated at the front end of the canopy. The crushing degree of top coal significantly impacts the canopy, especially the back end of the canopy and the hinged pin shaft, which is prone to bending fracture. The research results can provide references and experience for the stability control of roof strata and the structural optimization of hydraulic support. Full article

(This article belongs to the Topic Slope Erosion Monitoring and Anti-erosion)

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19 pages, 35460 KiB  

Open AccessArticle

Advancing Erosion Control Analysis: A Comparative Study of Terrestrial Laser Scanning (TLS) and Robotic Total Station Techniques for Sediment Barrier Retention Measurement

by Junshan Liu, Robert A. Bugg and Cort W. Fisher

Geomatics 2023, 3(2), 345-363; https://doi.org/10.3390/geomatics3020019 - 26 Apr 2023

Cited by 1 | Viewed by 2378

Abstract

Sediment Barriers (SBs) are crucial for effective erosion control, and understanding their capacities and limitations is essential for environmental protection. This study compares the accuracy and effectiveness of Terrestrial Laser Scanning (TLS) and Robotic Total Station (RTS) techniques for quantifying sediment retention in [...] Read more.

Sediment Barriers (SBs) are crucial for effective erosion control, and understanding their capacities and limitations is essential for environmental protection. This study compares the accuracy and effectiveness of Terrestrial Laser Scanning (TLS) and Robotic Total Station (RTS) techniques for quantifying sediment retention in SBs. To achieve this, erosion tests were conducted in a full-scale testing apparatus with TLS and RTS methods to collect morphological data of sediment retention surfaces before and after each experiment. The acquired datasets were processed and integrated into a Building Information Modeling (BIM) platform to create Digital Elevation Models (DEMs). These were then used to calculate the volume of accumulated sediment upstream of the SB system. The results indicated that TLS and RTS techniques could effectively measure sediment retention in a full-scale testing environment. However, TLS proved to be more accurate, exhibiting a standard deviation of 0.41 ft³ in contrast to 1.94 ft³ for RTS and more efficient, requiring approximately 15% to 50% less time per test than RTS. The main conclusions of this study highlight the benefits of using TLS over RTS for sediment retention measurement and provide valuable insights for improving erosion control strategies and sediment barrier design. Full article

(This article belongs to the Topic Slope Erosion Monitoring and Anti-erosion)

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