Landslide Risk Evaluation in Central Provinces of Vietnam

Luong, Le Hong; Miyagi, Toyohiko; Tien, Phan Van; Loi, Doan Huy; Hamasaki, Eisaku; Abe, Shinro

doi:10.1007/978-3-319-53498-5_130

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…These activities have not only affected the living environment but also increased the number of landslides. In Vietnam, many landslides have been reported in previous studies (Nguyen et al 2020;Luong et al 2017;Tien et al 2016;Duc 2013).…”

Section: Introductionmentioning

confidence: 92%

Characteristics and Remedy Solutions for a New Mong Sen Deep-Seated Landslide, Sapa Town, Vietnam

Nguyen

Nguyên

2023

Progress in Landslide Research and Technology, Volume 1 Issue 2, 2022

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Landslides govern the evolution of landforms and pose a serious threat across the globe, especially in mountainous areas. In the northwestern area of Vietnam, a deep-seated landslide occurred near the new Mong Sen bridge in Trung Chai commune, Sapa town, Laocai province. In October 2020, some serious cracks were observed above a natural slope near a road, which was under construction to connect the Noi Bai-Laocai highway to Sapa town. The crack area was divided into two zones. Since this phenomenon could not only cause loss of life but also damage to the properties located downhill, the construction was stopped until the slope was rehabilitated. In this study, geological investigations, laboratory tests, and stability analysis were conducted to understand the failure mechanism. The analysis results showed that cutting activities during the construction of the road contributed to the sliding of the sloping soil mass. The following rehabilitation works at the failed area were conducted: (1) removing the soil above the natural slope; and (2) constructing the retaining system, including ground anchors and soil nails to retain the remaining slope. Results of stability analysis demonstrated that the retained slope would be stable after treatment.

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Section: Introductionmentioning

confidence: 92%

Characteristics and Remedy Solutions for a New Mong Sen Deep-Seated Landslide, Sapa Town, Vietnam

Nguyen

Nguyên

2023

Progress in Landslide Research and Technology, Volume 1 Issue 2, 2022

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“…Every year in Vietnam, landslides occur not only in the mountainous regions of Lao Cai province but also in coastal areas, especially in the rainy season. Vietnam has a large mainland area (330,000 km 2 ), of which 75% is mountainous and hilly. Landslides can be caused by the complexity of topography, geology, geomorphology, monsoon climate, tropical typhoons, steep mountain sides, and man-made work, especially the cutting of slopes for buildings and roads.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the landslide disasters and slope failures occurred along the national highways and railway (North-South railway), such as the Ho Chi Minh route and the northern mountainous province, Lao Cai, Sapa town, near the Sapa Ancient Rock Field in Hau Thao commune, Vietnam [1][2][3]. In particular, provinces such as Lai Chau, Lao Cai, Ha Giang, Yen Bai, Son La, Hoa Binh, Thanh Hoa, and Nghe An 1289 (2023) 012093 IOP Publishing doi:10.1088/1757-899X/1289/1/012093 2 have the most frequent landslide causing locations [4].…”

Section: Introductionmentioning

confidence: 99%

A comparison of countermeasures against landslide on the road No.152, Sapa Town, Lao Cai Province, Vietnam

Aung,

Naing,

Nguyen

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Landslide hazards are one of the most common geological disasters due to the impacts of natural factors, mainly rainfall, and human activities, such as the construction of transport infrastructure and mining projects. In Vietnam, most of the landslides and slippage frequently occur in mountainous areas, especially in Lao Cai province during the rainy season. In 2021, a slope failure happened near the Mong Hoa valley, on Road No. 152, sections Km 2+728.26–Km 2+827.04 in Cau May ward, Sapa town, Lao Cai province. In this study, topographical features, geomorphological features, hydrological features, geological investigation, and laboratory tests were performed to analyse the slope stability. This study used the Limit Equilibrium Method (LEM) and the Finite Element Method (FEM) to analyse the slope stability, and several countermeasures were proposed for this slope such as the retaining wall, ground anchors, and soil nails. This numerical result showed that the ground anchors and soil nails are the suitable method to prevent the instability of the slope. This study shows that compared with the traditional LEM method and advanced FEM method is that it can capture more results not only safety factor but also horizontal displacement and load anchor result. As a result, this analysis showed that the safety factor value in the finite element method was greater than that in the limit equilibrium method.

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Landslide Risk Assessment in the Tropical Zone of Vietnam as a Contribution to the Mitigation of Natural Disaster Vulnerability

Van Tien,

Thanh,

Quang

et al. 2023

Progress in Landslide Research and Technology

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Landslide risk assessment is considered an important objective in minimizing damage caused by this extreme event. The biggest challenge of assessing landslide risk is predicting the likelihood of a catastrophic event. To evaluate this possibility, studies have focused on building integrated maps of assessment, using predictive models such as testings, scale models, numerical models, and actual field observations. This article summarizes the research achievements and applications achieved in the past ten years of the Institute of Transport Science and Technology in the landslide risk assessment in Vietnam.

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Landslide Risk Evaluation in Central Provinces of Vietnam

Cited by 6 publications

References 1 publication

Characteristics and Remedy Solutions for a New Mong Sen Deep-Seated Landslide, Sapa Town, Vietnam

Characteristics and Remedy Solutions for a New Mong Sen Deep-Seated Landslide, Sapa Town, Vietnam

A comparison of countermeasures against landslide on the road No.152, Sapa Town, Lao Cai Province, Vietnam

Landslide Risk Assessment in the Tropical Zone of Vietnam as a Contribution to the Mitigation of Natural Disaster Vulnerability

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