In-situ experimental research on water scouring of loess slopes

Xiao-ying, Qiao; Li, Xian; Guo, Yiwei; Ma, Shaoyang

doi:10.1007/s12665-018-7593-1

Cited by 11 publications

(9 citation statements)

References 44 publications

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“…A unique feature of this linear model is that it can be simply and explicitly expressed both in units of principal stresses and in the form of the mutual dependence of tangential and normal stresses . Factorized value of soil strength in terms of reduction of resistance to shift criterion Mohr-Coulomb can be expressed as: (15) This equation can be transformed to: * *…”

Section: Series Of Geology and Technical Sciences 2 2021mentioning

confidence: 99%

“…The Drucker-Prager criterion was initially proposed to describe plastic deformations in soils and soft rocks, and later to assess the strength of polymers and other materials [15,16]. The Hoeck-Brown criterion takes into account the physic mechanical properties of the intact and unharmed rock mass, which is subjected to external loads of both natural and technological origin [17].…”

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confidence: 99%

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Formation of Rock Slopes During Work to Reduce the Erosion Activity

Gasanov¹,

Mammadova²,

Mammadov³

et al. 2021

News of NAN RK. SGTS

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The formation of anti-erosion procedures is based primarily on achieving an equilibrium state that affects the state of the soil or constituent rocks of the slope. In this regard, the formation of a model that can demonstrate the processes of slope destruction, which can be represented not only by soil, but also by rocks or other formations, becomes relevant. In particular, it should be relevant for urban soils and technologically transformed landscapes. The novelty of the study is determined by the fact that all possible materials that form both slopes of natural origin and technological origin are considered as objects of potential erosion activity. The authors of the article are considering the possibility of applying reclamation measures that will reduce the maximum erosion activity within not only natural, but also urban landscapes. The article developed a model for analyzing the potential of erosion activity in combination with the physical parameters of the slopes and their mechanical composition. The practical significance of the study is determined by the fact that the proposed measures and the developed model for countering erosion activity can reduce technological costs for reclamation activities and thus increase the economic and technological efficiency of the project.

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Section: Series Of Geology and Technical Sciences 2 2021mentioning

confidence: 99%

mentioning

confidence: 99%

Formation of Rock Slopes During Work to Reduce the Erosion Activity

Gasanov¹,

Mammadova²,

Mammadov³

et al. 2021

News of NAN RK. SGTS

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“…Their thicknesses are 0.6, 6, 0.65 m, and no depth‐recorded bottom, respectively. The Q 4 and Q 3 strata loess are characterized by unconsolidated macrovoids, developed joint high‐silt percentages, and low clay content, and are easily eroded and exfoliated (Boardman and Poesen, 2007; Li et al ., 2011; Bjelajac et al ., 2016; Lukić et al ., 2018; Qiao et al ., 2018). The basic physical properties of the loess are shown in Table 1.…”

Section: Study Areamentioning

confidence: 99%

“…The calculation method of the sediment concentration can be expressed as:

sediment concentration ((), normalg {cm}^{- 3}) \frac{B - A}{C}

where A is the weight of the sample bottle (g); B is the total weight of dry mud and sample bottles (g); and C is the volume of wet mud (cm 3 ). The erosion amount can be estimated from the sediment concentration multiplied by the water cross‐section of the discharged flow quantity (Qiao et al ., 2018).…”

Section: Characteristics Of Loess Tunnel Erosion Based On Scouring Experimentsmentioning

confidence: 99%

Erosion characteristics of loess tunnels on the Loess Plateau: A field investigation and experimental study

Wang

Hong

et al. 2020

Earth Surf Processes Landf

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Loess tunnels are a common geo‐hazard in the Loess Plateau and not only cause considerable soil and water loss, but also aggravate and even induce the occurrence and development of other disasters such as ground fissures, mudflows, collapses, and landslides. To date, research on the hydrological characteristics and erosion behaviour of loess tunnel systems has focused on field investigation data and limited river basin observation data, whereas field test information and data are very scarce. In this study, field surveys, observations, field scouring experiments, and laboratory‐based sediment percentage tests were conducted to analyse the erosion characteristics, spatial distribution, and hydrological characteristics of a large‐scale loess tunnel system in the hilly Loess Plateau southeast region of northern China. The results showed that the loess tunnel erosion exhibited periodicity. Tunnel erosion in each period shows a similar erosion process, that is, thin‐layer water flow erosion and lateral expansion, tunnel wall collapse and deposit due to the loss of support from the lateral erosion, and erosion and transport of deposits by water flow. Waterfall erosion, lateral erosion, headward erosion, and the resulting collapses were the main forms of tunnel erosion. Besides this, the base level of erosion significantly affects the erosion characteristics of the loess tunnel. The hydrological characteristics during field scouring experiments exhibited three different stages: a lag effect, attributed to the temporary loss of water velocity in the first stage; small water flow fluctuations in the second stage; and an increase in total seepage loss with increased water injection flow in the third stage. The erosion rate was positively correlated with the flow quantity. The results of this study not only provide valuable reference data for research on the mechanism and velocity of erosion events in loess, but also provide a theoretical basis for the prevention of loess tunnel disasters in engineering construction. © 2020 John Wiley & Sons, Ltd.

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“…Like many other arid and semi-arid regions of the world, the Chinese Loess Plateau is in short of water resources for drinking and other usages due to limited rainfall, although the second largest river of China, the Yellow River runs across this area. It is the most serious region with severe soil erosion and water issues that have drawn much attention from researchers (He and Wu 2019a, b;He et al 2019;Li and Qian 2018;Liu et al 2017;Qiao et al 2018;Tian and Wu 2019;Zhang et al 2018Zhang et al , 2019Wei et al 2017;Wu et al 2019Wu et al , 2020. In 2019, the Chinese President, Xi Jinping, delivered his landmark speech at a symposium on ecological protection and highquality development in the Yellow River basin (Xi 2019), and he emphasized the importance of protecting the Yellow River and reviewed the great achievements in Yellow River governance since the founding of the People's Republic of China.…”

Section: Introductionmentioning

confidence: 99%

To Make the Water Safer

2020

Expo Health

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Water quality affects human health and ecological biodiversity, as water ingestion is the primary exposure pathway of human health risk, and water is the most active natural element participating in the transformation of ecological system. In this paper, the background of editing this special issue was outlined, and the main contents and contributions of papers published in this special issue were introduced. Several research directions that are important to guarantee the water safety in the Yellow River basin were proposed. This special issue provides a platform for researchers to share their latest research results, which will not only be helpful for enhancing water protection and management in the Yellow River basin, but also benefit the international community in addressing similar issues.

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In-situ experimental research on water scouring of loess slopes

Cited by 11 publications

References 44 publications

Formation of Rock Slopes During Work to Reduce the Erosion Activity

Formation of Rock Slopes During Work to Reduce the Erosion Activity

Erosion characteristics of loess tunnels on the Loess Plateau: A field investigation and experimental study

To Make the Water Safer

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