Investigation of the Consolidation Behavior of Soft Soil Improved with Vertical Drains by Finite Element Method

Akan, Recep; Sert, Sedat

doi:10.24107/ijeas.1002115

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…Pendekatan ini menggunakan komponen kontinum untuk menentukan jawaban yang mendekati kenyataan (Carbonell et al, 2022;Chen et al, 2021;A. W. Efendi, 2022b;Recep & Sedat, 2021;Tong et al, 2017).…”

Section: Metode Elemen Hingga (Fem)unclassified

The Settlement Behavior Using Replacement Embankment with Mortar Foam and Geofoam using LISA FEA

Efendi

2023

NuCE

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The IKN area, especially in the dock and stockyard construction area, is in an area with soft surface soil and requires several options for handling the stockyard area with several materials that are being widely used and easy methods and provide economic value in development. The use of geoform can increase the CBR value of native soil and the use of geofoam as embankment material provides a higher safety factor value with a smaller deformation value besides that the foam mortar material contributes to a small decrease and stress on the surface of the native soil. This study provides a behavioral review of the vertical settlement and stresses that occur in the soil and gives special behavior to the Geofoam material in the presence of hydrostatic forces. The largest settlement that occurred was 0.0961 m on the surface of the foam mortar, while on the existing soil surface a settlement of 0.0288 m occurred, while the largest settlement that occurred was 0.04254 m on the surface of the geofoam, while on the existing soil surface a settlement of 0.0277 m occurred.

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Section: Metode Elemen Hingga (Fem)unclassified

The Settlement Behavior Using Replacement Embankment with Mortar Foam and Geofoam using LISA FEA

Efendi

2023

NuCE

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“…Because research cannot prevent convection from gathering the baseplate surface with the face determination device, the convection coefficient of the baseplate surface is not fixed in stone as a part of the worth employed somewhere else for line component models only. It's merely a matter of mental alertness [10]. For the other [36] two versions, it's simple to prevent flow from the mounting surface -we simply don't use it.…”

Section: Lisa Fea V8mentioning

confidence: 99%

Buffer stops behavior due to rail impact loads with LISA FEA

Efendi

Weijia

2023

jrtt

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The buffer stop also offers a gradual deceleration to the train, lowering the chance of passenger harm and railway damage. The buffer stop's conduct is critical for the train system's safety and integrity. The researcher conducted an analysis of the behavior of the buffer stop after being hit by an oncoming train and experienced failure in braking by using solid steel materials and with an additional layer of rubber on the head end of the train stop buffer. With reference to the impact force parameters that have been calculated in previous studies so that it can be viewed from the stress that occurs and the value of the lateral movement that occurs at the buffer stops.From the results of the analysis of this study it is known that an increase in the ability of the buffer stops by replacing steel material with rubber does not provide a significant increase, however, thickening the flange and web of the buffer stops provides a significant increase in capability with a ratio of 3,582 to the applied stress. and increased ability to reduce the length of the drift by a ratio of 2,478.

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“…It is worthy of note that results of various numerical and experimental methods on the characterisation of soils undergoing vertical and radial consolidation, with constant or time-varying surcharge, have been reported in the literature [20][21][22][23][24]. However, a rigorous theory to benchmark the accuracy of those results is so far lacking.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Combined Vertical and Radial Consolidation of Soil under Time-Dependent Loading

Sadiku

2023

Civ Eng J

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Fine-grained compressible soils are usually associated with strength challenges in the course of carrying structures, roadways, embankments, and other civil engineering facilities. In addition, due to their low permeabilities, compressible soils take an awfully long duration to achieve optimal consolidation, with its attendant negative effects on the facilities supported by the soils. Engineering practitioners and researchers have established the efficacy of vertical drains for accelerating the consolidation process of such soils through the shortening of horizontal flow distances, thereby stabilizing them and improving their load-bearing capacities. Application of the pre-loading surcharge provides additional drive for rapid consolidation. The case of soils carrying time-dependent loading is quite topical because it reflects reality most appropriately. However, a rigorous analysis of soils undergoing vertical and radial consolidation with a constant or time-varying surcharge is conspicuously lacking in the literature because most authors of publications in this subject area have largely based their solution procedure on the assumed decoupling of the vertical and radial flows by treating their associated pore pressures as separate. This assumption, notwithstanding the simplification it introduces into the mathematics of the problem, is not supported by physics. Therefore, the theory presented herein aims at addressing that gap in the literature. Throughout this analysis, the coupled (vertical and radial) flow, driven by a common pore water pressure, is handled as a single process. Successive applications of the integral transformations of Laplace and finite Hankel have been used to obtain an explicit expression for the image of the pore water pressure as a function of the transformation parameters. This is followed by successive inversions of the integral transforms, leading to a closed-form solution in the sense of a generalized Fourier series. The classical definition of the average degree of consolidation is easily applied in this case, unlike other methods in the literature that rely on the principle of superposition, whose applicability in this circumstance remains questionable. The validity of the present analysis has been established through logical checks and comparison with previous results in the literature. This theory has been proven to be applicable to cases of constant as well as time-varying surcharges. Doi: 10.28991/CEJ-2023-09-01-014 Full Text: PDF

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Investigation of the Consolidation Behavior of Soft Soil Improved with Vertical Drains by Finite Element Method

Cited by 4 publications

References 25 publications

The Settlement Behavior Using Replacement Embankment with Mortar Foam and Geofoam using LISA FEA

The Settlement Behavior Using Replacement Embankment with Mortar Foam and Geofoam using LISA FEA

Buffer stops behavior due to rail impact loads with LISA FEA

Analysis of Combined Vertical and Radial Consolidation of Soil under Time-Dependent Loading

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