Estimating landslide sliding distance based on an improved Heim sled model

Zong-lin, Zhang; Meng, Xiaohong; Zhao, Shufen; Yao, Yonghong; Wang, Hong; Guo, Weiwei; Chen, Guan; Zhang, Yi

doi:10.1016/j.catena.2021.105401

Cited by 8 publications

(3 citation statements)

References 47 publications

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“…In addition to terrain factors, the sliding volume is a key factor determining the speed and traveling distance of mass movement. The volume of loose materials in the channel has a significant influence on the traveling distance of debris flows (Dahlquist & West, 2019; Z. Zhang et al., 2021). Here we relied on the analysis of the process reconstruction to interpret the superfluidity of the CGHC.…”

Section: Discussionmentioning

confidence: 99%

Glacier Retreat in Eastern Himalaya Drives Catastrophic Glacier Hazard Chain

Li,

Cui,

et al. 2024

Geophysical Research Letters

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Cryospheric responses to climate warming include glacier retreat, altitude‐dependent thermal instability, and abundant meltwater, which increase the frequency of catastrophic glacier hazard chain (CGHC) events. Here we investigated the formation mechanism of a special CGHC event in 2018, in the Sedongpu Glacier, Eastern Himalayas, China. Based on the multi‐source remote sensing, seismic signal analysis, and numerical simulation, we conducted long‐term retrospective analysis and co‐event process reconstruction. The results show that the event could be divided into two phases. First, the hanging glacier with a volume of 8.5 × 106 m3 collapsed onto the downstream trunk glacier. Next, ∼1.17 × 108 m3 eroded materials from the impacted glacier transformed into debris flow and traveled downstream 8 km. During the cascading process, ice‐rock avalanche momentum and glacier velocity are key factors in determining CGHC formation and eventual volume. Our study helps better understand the domino effects of the CGHC disaster.

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Section: Discussionmentioning

confidence: 99%

Glacier Retreat in Eastern Himalaya Drives Catastrophic Glacier Hazard Chain

Li,

Cui,

et al. 2024

Geophysical Research Letters

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“…The platform has also receded at a rate of ~0.0096-0.024 km 2 /yr and the platform area has decreased by 0.49 km 2 between 1967 and 2018, accounting for approximately 4.5% of its total area [62,77]. According to on-site investigations, the type of landslide causing the most widespread and serious disasters are mostly the loess flow slides due to greater sliding distance and volume [78], i.e., equating to the type B 1 landslide highlighted in this study. Frequently recurring loess flow slides have caused 42 fatalities [71].…”

Section: Potential For Future Landslides On the Heitai Terracementioning

confidence: 99%

Effects of Irrigation Projects on the Classification of Yellow River Terrace Landslides and their Failure Modes: A Case Study of Heitai Terrace

Zhang,

Zeng,

Zhao

et al. 2023

Remote Sensing

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The study of the classification and failure modes of Yellow River terrace landslides under the influence of irrigation projects is of key importance to alleviate the paradox between the rapid evolution of terrace landscapes caused by landslides and the survival of local residents. However, such studies remain controversial, despite it being widely recognized that a rise in groundwater level caused by irrigation is a key factor associated with landslide failure modes. In this paper, we take the Heitai terrace as a case study. Using aerial images and field investigations, we classify landslides in the Heitai loess layer into type A landslides (not related to groundwater) and type B1 and B2 landslides (related to groundwater). We analyze the failure modes and disaster-causing characteristics of each type of landslide, and our results indicate that the attenuation in soil strength is a key factor common to both type A and type B landslides, based on which type A landslides with small volume and short sliding distance are able to block the previous spring discharge, causing a rise in localized groundwater, which further contributes to type B landslides; the location of previous type B1 landslides with a large volume and long sliding distance and type A landslides may be more susceptible to type B2 landslides with a small volume and short sliding distance, where there are low confining pressures during the lower soil shear process. Therefore, we believe that the inevitable interaction effects between the failure modes of landslides during landslide evolution, which govern the geomorphological evolution of the Heitai terrace, are unavoidable. Combining these data with numerical analyses, we further demonstrate that a rise in groundwater level and discontinuous attenuation of soil strength caused by changes in soil properties during irrigation together control terrace landslides and their failure modes. From the results of interferometric synthetic aperture radar time-series monitoring of Yellow River terrace activity with and without irrigation projects, and electrical resistivity tomography groundwater detection, we conclude that in the future, Heitai terrace will continue to experience a high intensity of landslide activity, and conditions for the most catastrophic type of landslide (type B1) will remain, including the high localized groundwater caused by previous landslides, and the discontinuous attenuation of soil strength caused by the deterioration in soil properties. In this context, we believe that slope-cutting engineering will be one of the most economical means to achieve future landslide-type transformation on the Heitai terrace; this will mitigate the process of geomorphological evolution and improve the human living environment.

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“…[36], while flow parameters or mechanical parameters of motion are not involved. Hence, it is a practical predictive means and many researchers have adopted this approach [37,38]. Notably, a reliable empirical model requires an adequate number of landslide samples.…”

Section: Introductionmentioning

confidence: 99%

Study of the Multi-Critical Parameters Characterizing the Instability Behavior of Translational Rockslides Considering the Excavation

Liu,

Yang,

Wang

et al. 2024

Preprint

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Translational rockslides caused by toe excavation are one of the commonly seen geohazards in mountainous regions due to line traffic construction. Quantifying their failure extension length (FEL) and travel distance are of significant interest as well as huge challenges in landslide hazard assessment. In this paper, a simple criterion is proposed for predicting these two factors based on the principles of rigid body limit equilibrium and kinetic energy theorem. Further, the proposed criterion is validated against the field observations and numerical results with a practical case of the Xinjianan landslide, a medium-sized translational rockslide that occurred in 2013 in Nanchuan District, Chongqing. The findings indicate that a tiny discrepancy can be found in FEL between the field observations and the proposed criteria, while this discrepancy could be considerable in travel distance between different methods. However, the relative discrepancies all fall within 20%, deemed acceptable.

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Estimating landslide sliding distance based on an improved Heim sled model

Cited by 8 publications

References 47 publications

Glacier Retreat in Eastern Himalaya Drives Catastrophic Glacier Hazard Chain

Glacier Retreat in Eastern Himalaya Drives Catastrophic Glacier Hazard Chain

Effects of Irrigation Projects on the Classification of Yellow River Terrace Landslides and their Failure Modes: A Case Study of Heitai Terrace

Study of the Multi-Critical Parameters Characterizing the Instability Behavior of Translational Rockslides Considering the Excavation

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