Stability of expansive soil slopes reinforced with anchor cables based on rotational-translational mechanisms

Cheng, Yan; Xu, Yongfu; Wang, Long; Wang, Lei

doi:10.1016/j.compgeo.2022.104747

Cited by 22 publications

(8 citation statements)

References 19 publications

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“…Hou et al [104] proposed a reinforcement system consisting of anchor cables, anchor rods, and soil nails to improve the stability of expansive soil slopes. Cheng et al [137] stated that pre-stressed anchor cables were an effective measure to improve slope stability. Although steel spiral anchors have a simple structure, they are prone to corrosion.…”

Section: Limitation Of Swelling-shrinkage Deformationmentioning

confidence: 99%

Failure Mechanisms and Protection Measures for Expansive Soil Slopes: A Review

Luo,

2024

Sustainability

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Due to the significant hydrophilicity and cracking properties of expansive soils, expansive soil slopes are prone to destabilization and landslides after rainfall, seriously threatening the safety of buildings, highways, and railroads. Substantial economic losses often accompany the occurrence of expansive soil slope disasters; thus, it is of great significance to understand the slope failure mechanisms experienced by expansive soil slopes and to prevent expansive soil slope disasters. In this paper, the current research status of the landslide failure mechanism of expansive soil slopes is systematically reviewed based on three research methods: field test, model test, and numerical simulation. The failure mechanisms of expansive soil slopes and the main influencing factors are summarized. Based on the failure mechanisms, three protection principles (waterproofing and water blocking, swelling–shrinkage deformation limitation, and crack inhibition and strength enhancement) that can be followed for disaster prevention of expansive soil slopes are proposed. The research status and advantages and disadvantages of these protection methods are reviewed, and future researchable directions of the stability of expansive soil slopes and slope protection methods are explored. Based on the previous work, a new flexible ecological slope protection system with a double waterproof layer is proposed for expansive soil slopes to realize ecological, efficient, and long-term protection. This paper thus aims to provide technical reference for the prevention and control of slope engineering disasters in expansive soil areas.

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Section: Limitation Of Swelling-shrinkage Deformationmentioning

confidence: 99%

Failure Mechanisms and Protection Measures for Expansive Soil Slopes: A Review

Luo,

2024

Sustainability

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“…Tanah ini masuk dalam kategori tanah bermasalah, sehingga dalam penangannya memerlukan pengetahuan dan keahlian khusus. Beberapa penelitian telah dilakukan untuk mengetahui cara yang paling tepat untuk menstabilisasi tanah ekspansif, baik menggunakan cara mekanis maupun kimiawi (Aryanto & Amalia, 2021;Cheng et al, 2022;Dai et al, 2020;Maulana & Hamdhan, 2016;Muzakki dkk., 2018;Rui et al, 2020). Fungsi lumbung sebagai penampung air menyebabkan tanah rentan terhadap air, sehingga tanah mengalami kembang susut sehingga terjadi kelongsoran.…”

Section: A Latar Belakangunclassified

Pendampingan Dalam Analisis Penanganan Kelongsoran Pada Tanah Ekspansif Menggunakan Software Geostudio

Chrismaningwang,

Surjandari,

Purwana

et al. 2023

JMM

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Abstrak: Lumbung Sukodono yang terletak di Desa Sukodono, Kecamatan Panceng, Kabupaten Gresik, Provinsi Jawa Timur mengalami kelongsoran sehingga tidak berfungsi secara maksimal. Sejak tahun 2021, pihak Balai Besar Wilayah Sungai (BBWS) Bengawan Solo, yang bertanggungjawab dalam pengelolaan sumber daya air di wilayah Sukodono, telah berupaya melakukan berbagai macam perbaikan untuk menanggulangi masalah kelongsoran di Lumbung Sukodono namun hingga saat ini, kelongsoran masih terus terjadi. Penggunaan GeoStudio sebagai perangkat lunak analisis geoteknik adalah langkah yang tepat untuk meningkatkan efektivitas dan kehandalan penanganan kelongsoran. Program pendampingan penggunaan software Geostudio oleh tim pengabdian masyarakat diharapkan bisa membantu mitra BBWS Bengawan Solo dalam mengidentifikasi dan menganalisis potensi kelongsoran akibat tanah ekspansif di Lumbung Sukodono dengan lebih akurat. Pendampingan dilakukan pada 3 orang staf teknik dan 3 orang staf lapangan dari Balai Besar Wilayah Sungai (BBWS) Bengawan Solo. Dari hasil observasi, kegiatan ini secara efektif meningkatkan pemahaman mengenai perilaku tanah ekspansif dan cara pemodelannya menggunakan Geostudio terhadap seluruh peserta kegiatan pendampingan. Hal ini ditunjukkan dengan tingkat kesalahan pada saat pemodelan kurang dari 10%.Abstract: Slope instability induced Lumbung Sukodono, which is located in Sukodono Village, Panceng District, Gresik Regency, East Java Province, to operate not as efficiently. Since 2021, the Balai Besar Wilayah Sungai (BBWS) Bengawan Solo, responsible for water resource management in the Sukodono area, has been making various efforts to address the slope instability issue at Lumbung Sukodono. However, the slope instability persists. The use of GeoStudio as a geotechnical analysis software is a suitable step to enhance the effectiveness and reliability of slope instability management. A community engagement program, involving 3 technical staff and 3 field staff, was conducted to assist BBWS Bengawan Solo in identifying and analyzing potential slope instability due to expansive soils at Lumbung Sukodono more accurately. Observations revealed that the program effectively improved participants' understanding of expansive soil behavior and its modeling using GeoStudio, with modeling errors being less than 10%.

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“…Among the many current soil improvement methods, geosynthetics are commonly used in sand reinforcement in engineering and are widely used on slopes [2][3][4][5], retaining walls [6][7][8][9], dams, highways, railroad beds, and other projects. However, traditional soil reinforcement methods such as the unidirectional laying of geogrids [10][11][12][13][14][15][16], geotextiles [17][18][19][20][21][22][23], and other reinforcement materials can easily form potentially weak surfaces in the soil and increase its anisotropy.…”

Section: Introductionmentioning

confidence: 99%

Analysis of basalt fiber reinforcement on static shear properties of Beibu Gulf sea sand

Wang,

He,

Tang

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Basalt fibers are a reinforcing material with excellent mechanical properties and durability. In contrast, although Beibu Gulf sea sand is widely in engineering, it exhibits low strength and poor stability, which can be improved by adding basalt fibers. In this study, the effects of fiber content, fiber length, and effective confining pressure on the static shear strength of fiber-reinforced sea sand were investigated using a triaxial shear test. The maximum improvement on the static shear characteristics and deformation resistance of sea sand were achieved for a fiber content and length of 0.8% and 12 mm, respectively. The cohesion and internal friction angle of sea sand were improved and the secant modulus and strain before and after basalt fiber reinforcement showed a nonlinear attenuation tendency. The reinforcement effect coefficient R and the basalt fiber content under different dosages were in accordance with the law of the Gaussian function. The value of R conformed to a linear growth and exponential function law under different fiber lengths and effective confining pressures, respectively. This study provides a solid theoretical basis for the sustainable utilization of sea sand resources and fiber reinforcement for road and coastal protection engineering in the Beibu Gulf region.

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Stability of expansive soil slopes reinforced with anchor cables based on rotational-translational mechanisms

Cited by 22 publications

References 19 publications

Failure Mechanisms and Protection Measures for Expansive Soil Slopes: A Review

Failure Mechanisms and Protection Measures for Expansive Soil Slopes: A Review

Pendampingan Dalam Analisis Penanganan Kelongsoran Pada Tanah Ekspansif Menggunakan Software Geostudio

Analysis of basalt fiber reinforcement on static shear properties of Beibu Gulf sea sand

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