Experimental study on the formation of landslide dams by fragmentary materials from successive rock slides

Liao, Hai-mei; Yang, Xing-guo; Lu, Guoyan; Tao, Jian; Zhou, Jia‐wen

doi:10.1007/s10064-019-01651-7

Cited by 15 publications

(10 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For its understanding, various experiments were carried out, such as the use of differential equations for the dynamics of the system [ 129 ], analysis of the theory of the critical state in the mobilization of debris flows due to the increase in the basal pressure of pores [ 194 ], and the generation of dynamic models to understand the evolution of the system [ 112 ]. For a further understanding of debris flow, maps used that are supported by Geographic Information Systems (GIS) [ 195 , 196 ], geophysical studies [ 197 ] and statistical methods such as logistic regression (LR) [ 198 , 199 ] and Multivariate Adaptive Regression Splines (MARS) were explored [ 200 ], allowing us to understand the formation or prevention of landslide dams [ 201 , 202 , 203 ] and debris flows, which can also be generated by shallow landslides, which are identified through susceptibility mapping [ 124 , 204 , 205 ].…”

Section: Resultsmentioning

confidence: 99%

Worldwide Research Trends in Landslide Science

Carrión-Mero

Montalván-Burbano

Morante-Carballo

et al. 2021

IJERPH

View full text Add to dashboard Cite

Landslides are generated by natural causes and by human action, causing various geomorphological changes as well as physical and socioeconomic loss of the environment and human life. The study, characterization and implementation of techniques are essential to reduce land vulnerability, different socioeconomic sector susceptibility and actions to guarantee better slope stability with a significant positive impact on society. The aim of this work is the bibliometric analysis of the different types of landslides that the United States Geological Survey (USGS) emphasizes, through the SCOPUS database and the VOSviewer software, for the analysis of their structure, scientific production, and the close relationship with several scientific fields and its trends. The methodology focuses on: (i) search criteria; (ii) data extraction and cleaning; (iii) generation of graphs and bibliometric mapping; and (iv) analysis of results and possible trends. The study and analysis of landslides are in a period of exponential growth, focusing mainly on techniques and solutions for the stabilization, prevention, and categorization of the most susceptible hillslope sectors. Therefore, this research field has the full collaboration of various authors and places a significant focus on the conceptual evolution of the landslide science.

show abstract

Section: Resultsmentioning

confidence: 99%

Worldwide Research Trends in Landslide Science

Carrión-Mero

Montalván-Burbano

Morante-Carballo

et al. 2021

IJERPH

View full text Add to dashboard Cite

show abstract

“…In the series of successive landslide damming episodes, the (residual) deposit from the previous one(s) usually causes the river at dam site to be narrowed and raised. Such a new channel could hinder the masses of the subsequent slide from extending and restricted them in a relatively small area to form a high and steep dam (Sartori Liao et al 2019b). Then the subsequent dam probably presents poorer stability and larger outburst flow than the case without the previous damming event.…”

Section: Discussionmentioning

confidence: 99%

“…Then almost all the fragmented materials of the second slide ran into this new channel, very few could climb on the residual deposit surface of the first dam. Additionally, the material of the previous dam transported downstream and changed the river course, and the outburst flood of the subsequent dam would aggravate the flooding as a result of the rising riverbed (Fan et al 2019a;Liao et al 2019b). Consequently, the hazard of the subsequent lake triggered by the successive landslides is likely to increase significantly.…”

Section: Discussionmentioning

confidence: 99%

“…Both damming episodes seriously threatened the upstream areas by impoundment of water and downstream areas by catastrophic flood of dam breach. Liao et al (2019b) argued that the behaviour of the previous one in the successive landslide dams usually exert a critical influence on the formation and geometry of the subsequent dam, namely, the hazard of the subsequent episode in these successive landslide-dammed lakes is usually closely tied to the preceding ones. Therefore, such successive landslide-damming episodes could be seen as an integrated event for better understanding its hazard evolution.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Increase in hazard from successive landslide-dammed lakes along the Jinsha River, Southwest China

Liao

Yang

et al. 2020

Geomatics, Natural Hazards and Risk

Self Cite

View full text Add to dashboard Cite

Multiple reactivation of a large landslide might dam river course at the same site in different periods, which would exert long-term and considerable influence on society and environment. In this paper, we consider such successive damming episodes as an integrated system and take the 2018 Baige event due to successive landslides as an example to explore the hazard characteristics of successive landslide-dammed lakes. Based on the river valley conditions at dam site before the first and second blockage, the height of dams formed by landslides with different volumes is estimated, and then the stability and peak discharge of these landslide dams are evaluated. The calculation results show that the hazard of the dammed lake triggered by subsequent slide event in the successive landslides could increase significantly. The cause of such hazard increasement of the subsequent landslide dam is also discussed. The experience obtained in this case study can facilitate better understanding the hazard characteristics of similar landslide-dammed lakes, as well as planning engineered controls in advance in order to decease the hazard of dammed lake formed by the potential subsequent landslide.

show abstract

“…Korup (2002) studied 232 landslide dams in New Zealand, and found that 39% of them were triggered by earthquakes. The landslide dams usually consist of a mixture of rock and soil with uneven particle grading, low compactness and poor erosion resistance (Andrews 1983;Kundzewicz et al 2019;Liao et al 2020). Therefore, seepage and/or overtopping can occur on a landslide dam due to the loose composition, resulting in catastrophic floods around the downstream area and lead to considerable losses of property and life (Pickert et al 2011;Liao et al 2018;Chen et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Quantitative monitoring method for analyzing the erosion of a landslide dam discharge channel using three-dimensional terrestrial laser scanning

Jiang

Kou

et al. 2021

Geomatics, Natural Hazards and Risk

Self Cite

View full text Add to dashboard Cite

While excavated discharge channels are often used for the emergency treatment of landslide-dammed lakes, the erosion of the discharge channel of a landslide dam is complex and rarely monitored on site. This work presents a quantitative monitoring method based on three-dimensional terrestrial laser scanning technology (TLS) for analyzing the erosion of a landslide dam discharge channel and then applies this method to evaluate the emergency engineering treatment of the 2018 Baige landslidedammed lake in 2019. The proposed method uses TLS technology to accurately track the dynamic evolution of the discharge channel and to quantify the lateral erosion. Moreover, qualitatively analysis for vertical erosion is conducted based on the difference between actual and hypothetic river elevation. The results indicate that erosion processes of landslide deposition fluctuate as the results of flow discharge variations. Damage to the covering layer consisting of large particles is considered to be the main cause of this phenomenon. According to the relationship between erosion intensity (EI) and flow velocity, an empirical formula is deduced for erosion analysis. The key parameter in this formula is determined by the variation rate of discharge, the flow velocity, the composition of riverbank and the flow field distribution.

show abstract

Experimental study on the formation of landslide dams by fragmentary materials from successive rock slides

Cited by 15 publications

References 45 publications

Worldwide Research Trends in Landslide Science

Worldwide Research Trends in Landslide Science

Increase in hazard from successive landslide-dammed lakes along the Jinsha River, Southwest China

Quantitative monitoring method for analyzing the erosion of a landslide dam discharge channel using three-dimensional terrestrial laser scanning

Contact Info

Product

Resources

About