Slope stability analysis in Ulubelu Lampung using computational analysis program

Jafri, Muhammad; Iswan, Iswan; Rizki, Muhammad; Susilo, Gatot Eko

doi:10.21776/ub.civense.2020.00301.6

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…The critical slope failure along the potential landslide area was not directly affected by changes in the effective stress or increased pore-water pressure due to the earthquake. According to the results of the stress analysis in the quake/W analysis, these results are in accordance with those of [6,17,19], where the safety factor of slopes under earthquake conditions is influenced by changes in effective stress and increased pore water pressure. The safety factor value of the slope stability analysis results under both conditions satisfied the requirements recommended by Indonesian National Standard (SNI) 8460: 2017 [13].…”

Section: Slope Stability Analysissupporting

confidence: 84%

Time Histories Finite Element Modelling for Irrigation Canal Stability Analysis under the Effects of Liquefaction in the Sibowi Sigi Regency, Indonesia

Pucangan,

Rifa’i,

Rahardjo

2024

IOP Conf. Ser.: Earth Environ. Sci.

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The Gumbasa irrigation canals are one of the water resource infrastructures damaged by the 7.5 Mw Palu-Donggala Earthquake in 2018. Canal reconstruction was performed to restore the function of the irrigation network, supllying a potential area of 8000 ha. Main canal construction is known to pass through areas with liquefaction vulnerability, and seismic factors also play a role in the stability of construction. This study discusses the stability of construction under the influence of earthquake loads on the Gumbasa irrigation main canal in the Sibowi area, Tanambulava district, Sigi Regency. The irrigation main canals are built in a landfill on a subbase soil with the potential for liquefaction. Numerical simulations were carried out using the finite element method under two conditions, namely static and dynamic conditions on soil parameters obtained from the Standard Penetration Test (N-SPT) data obtained previously. Based on the analysis results, depths of 6.5 m to 9 m have partial potential for liquefaction, with no significant decrease in safety factor (SF). In the static analysis, the SF is 1.65 and 2.13. In the dynamic analysis, the SF is 1.64 and 2.12. The vertical displacement is minimum 0.03 m and maximum 0.10 m.

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Section: Slope Stability Analysissupporting

confidence: 84%

Time Histories Finite Element Modelling for Irrigation Canal Stability Analysis under the Effects of Liquefaction in the Sibowi Sigi Regency, Indonesia

Pucangan,

Rifa’i,

Rahardjo

2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…. [11] The landslide fields in the fellenius and bishop methods are assumed to be circular. The following is the slice surface that has been carried out by fellenius and bishop.…”

Section: Introductionmentioning

confidence: 99%

A new slip surface in noncohesive slopes

Repadi

Bari

Ismail

et al. 2022

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

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Determining the slope slip surface is difficult, prominent and uncertain. Slip-surface are utilized to estimate slope safety. This study aimed at investigating the slip surface caused by statistical loads by using experimental testing methods. The experimental method was conducted by providing a statistical load on the sand slope The load was used until the slope collapsed. Sand slopes were modeled in a glass box measuring 110 cm x 40 cm x 10 cm. The sand material used was sand that passed through sieve no.10 and was held by sieve no. 200. At a distance of 2.5 cm horizontally and at a distance of 5 cm vertically, colored marks were used to see the pattern of grain movement. Observations were conducted until the slope collapsed. The collapse pattern revealed in the experimental method is non-circular.

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“…The various types of slip surfaces are translation, rotation, block, rock debris, soil creep, and debris. Researchers who have researched the shape of the slip surface numerically are in rotation [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Effect of load on the shape of the slip surface and the velocity of the landslide on a mixture of clay sand

et al. 2021

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The slip surface has an essential role in slope stability analysis. The slip surface is to be known to calculate the safety factor. The velocity of landslides needs to be done to mitigate when a landslide occurs to reduce the risk. This study aims to determine the shape of the slip surface and the velocity of the landslide with variations in load and 2 combination material. The slope is formed in a glass box measuring 110 x10x40 cm. The slope angle used is the same as the angle of internal friction. The slope is given a uniform load until the slope collapses. Loading is done by using a pressure device placed on the prooving ring at the bottom of the press. From both material variatn ions and load variations, it can be seen that the shape of the slip surface that occurs is almost the same, namely in the form of a slip surface. So it is concluded that the load does not affect the shape of the slip surface. The velocity that occurs in combination 1 is moderate-rapid, while combination 2 is moderate. Combination 2 clay is safer than combination 1 but not too significant.

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Slope stability analysis in Ulubelu Lampung using computational analysis program

Cited by 4 publications

References 1 publication

Time Histories Finite Element Modelling for Irrigation Canal Stability Analysis under the Effects of Liquefaction in the Sibowi Sigi Regency, Indonesia

Time Histories Finite Element Modelling for Irrigation Canal Stability Analysis under the Effects of Liquefaction in the Sibowi Sigi Regency, Indonesia

A new slip surface in noncohesive slopes

Effect of load on the shape of the slip surface and the velocity of the landslide on a mixture of clay sand

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