The modelling influence of water content to mechanical parameter of soil in analysis of slope stability

Gusman, Mulya; Nazki, A.; Putra, Rizaldi

doi:10.1088/1742-6596/1008/1/012022

Cited by 5 publications

(5 citation statements)

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“…In previous studies, water content was found to be an important factor affecting slope stability [ 27 , 28 , 29 , 30 , 31 ]. This article comes to the consistent conclusion from laboratory experiments that when the water content increased from 20% to 40%, the cohesion and internal friction angle of the clay decreased by about 60% and 67%, respectively, and the cohesion and internal friction angle of the silt soil decreased by about 61% and 43%, respectively ( Table 4 ).…”

Section: Discussionmentioning

confidence: 99%

“…The slope of the Yellow River floodplain presents a typical interactive stratified structure, and slopes with special structures have not been widely studied. Gusman suggested that one of the important factors in slope stability analysis is water content [ 31 ]. Hooke and Casagli et al stated that soil moisture content is essential to beach erosion [ 32 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Calculation Study on the Slope Stability of the Yellow River Floodplain from Wantan Town to Liuyuankou

Wang

Liu

et al. 2023

Toxics

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More than two million people live on the floodplains along the middle and lower streams of the Yellow River. The rapid development of industry and agriculture on both sides of the Yellow River has caused serious pollution of the floodplain soil. Erosion by water has led to the destruction of the floodplain which has not only compressed people’s living space but also resulted in a large amount of sediment containing heavy metals entering the river, aggravating water pollution. To further study the law governing the release of pollutants in soil, this work, based on field surveys of the Yellow River floodplain slopes from Wantan town to Liuyuankou, was focused on determining the failure mechanism and laws for the floodplain slope through the combination of a flume experiment and numerical calculations. The results showed that the floodplain slopes, composed of clay and silty sand, presented an interactive structure. Under the action of water erosion, the slope was first scoured to form a curved, suspended layer structure, and then the upper suspended layer toppled. The bank stability coefficient decreased by about 65% when the scour width increased from 0.07 m to 0.42 m, and the water content increased from 20% to 40%. For the failure characteristics, the angle of the failure surface was negatively correlated with the scour width, and the distance from the top failure surface to the bank edge was about 2.5 times that of the scour width.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Calculation Study on the Slope Stability of the Yellow River Floodplain from Wantan Town to Liuyuankou

Wang

Liu

et al. 2023

Toxics

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“…In active and passive soil nail systems, the slope stability (FOS) constantly decreases every time the moisture content increases, as depicted in figures 4 (a) and (b), respectively. Gusman [6] reported that additional water content can decrease the cohesion value and internal shear angle. This can cause a lower value in the shear strength and slope strength.…”

Section: Effect Of Moisture Content On Soil Nailing Structurementioning

confidence: 99%

Comparative study between active and passive soil nailing using PLAXIS software

Razak,

Nujid

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Many researchers have proposed several solutions to minimise the landslide problem. One proposed solution is stabilising the slope by installing nail reinforcement through simulation analysis in PLAXIS software. The study aims to analyse the stability of nailed slopes in two different types of parameters by using numerical study. The result of the parametric study was performed at various effects of moisture content and slope angle. Mohr-Coulomb and Hardening Soil models were adopted to analyse the behaviour of soil failure subjected to loadings condition of moisture content and slope angle effects. The finding results regarding the slope stability (FOS) study show that values of the FOS decreased as the slope angle and moisture content increased. This can be seen during the Mohr-coulomb model for passive soil nail system, that the FOS of moisture content at 7.1 % is 1.107, while the FOS of moisture content at 25 % is 1.063. The finding also shows that the active soil nail system is better than the passive soil nail system. This can be seen when the highest value of FOS in the Mohr-Coulomb model for active soil nail is 1.336 at 7.1 % moisture content, while passive soil nail has a FOS value of 1.107 at 7.1 % moisture content. The significance of the study has also impacted preserving the original geometry structure of nature, while people can enjoy the scenery. It also can be beneficial in terms of the cost-effectiveness of soil for nailed structures to prevent unnecessary problems in the future.

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“…If the intensity of the rainfall is high, the soil water content will rise, causing the physical condition of the slope body to change. Increased water content weakens the soil's physical-mechanical properties and reduces the slope safety factor (Gusman et al, 2018). Furthermore, landslides are more likely to occur when rocks and slopes are not compacted and easily degraded (Yilmaz & Narman, 2015).…”

Section: Introductionmentioning

confidence: 99%

Identification of Slip Area in Makale Selatan District Using the Geoelectric Method

et al. 2023

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Landslides are most common in steep areas with heavy rainfall. Aside from rainfall, there are numerous other factors that contribute to landslides. The presence of slip fields in the subsurface layer is one of the primary causative factors. South Makale is one of the sub-districts in Tana Toraja Regency that is located in the mountains, where landslides frequently occur, claiming lives. The purpose of this study was to determine the slip area of potential landslides in three sub-districts, which are Sandabilik, Tiromanda, and Randan batu villages. The geoelectric method with the Wenner-Sclumberger configuration type was used. The measurement data is in the form of rock resistivity values, which are then interpreted based on the rock layer type. The findings revealed that the Sandabilik and Randan Batu villages were landslide risk areas. Sandabilik Village has a slip area in the form of lava rock at a depth of 6.5 - 19.8 meters on line 1 and 1.5 - 16 meters on line 2. Rocks of the same type can also be found in Randan Batu Village, a landslide point with depths ranging from 2 to 16 meters on line 1 and 5 to 20 meters on line 2.

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The modelling influence of water content to mechanical parameter of soil in analysis of slope stability

Cited by 5 publications

References 0 publications

Experimental and Numerical Calculation Study on the Slope Stability of the Yellow River Floodplain from Wantan Town to Liuyuankou

Experimental and Numerical Calculation Study on the Slope Stability of the Yellow River Floodplain from Wantan Town to Liuyuankou

Comparative study between active and passive soil nailing using PLAXIS software

Identification of Slip Area in Makale Selatan District Using the Geoelectric Method

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