Munirwansyah Munirwansyah
Profesor Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala Jl. Tgk. Syeh Abdul Rauf No. 7, Darussalam Banda Aceh 23111

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Journal : Jurnal Arsip Rekayasa Sipil dan Perencanaan

ANALISIS HKRITIS TERHADAP DAYA DUKUNG TANAH DASAR D. Nasution, Lutfi; Munirwansyah, Munirwansyah; Saleh, Sofyan M.
Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Vol 1, No 2 (2018): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.914 KB) | DOI: 10.24815/jarsp.v1i2.10940

Abstract

The addition of the existing heap on the ground interface will affect the ability of subgrade to accept the burden of the embankment and other charges on it. The inability of subgrade in accepting the load will result in a decrease in the vertical deformation and collapse. The analysis was conducted on the National Roads Banda Aceh-Medan KM. 83 + 135 of the Seulawah. The purpose of this study is to analyze whether the brunt of the height of the pile (H Critical) have exceeded the carrying capacity of the subgrade. The analysis was performed by using Plaxis software. The implementation method used in the analysis based on the modeling of the pile height variations by reducing the height of the pile with a certain interval gradually until a critical height (H Critical) heap that causes the achievement of maximum decrease of 2.5 cm. The modeling result demonstrates that when the consolidation of the soil embankment on condition of Hheap soil = 6 m, Hheap soil= 5.4 m, Hheap soil = 4.8 m could able to reduce the height of the soil embankment by 10%, 20%, and 30%, and considered in an unsafe condition. While when the soil embankment consolidation reduce by 40% (H heap soil = 3.6 m) showing in a safe condition. This result shows that the forces acting on the pile-soil could not hold the load so that the interface is about to collapse.
ANALISIS STABILITAS LERENG MENGGUNAKAN SOFTWARE PLAXIS 8.6 DENGAN DINDING PENAHAN TANAH (RETAINING WALL) (STUDI KASUS RUAS JALAN NASIONAL BANDA ACEH-MEDAN STA 83+135 GUNUNG SEULAWAH) Wihardi, Wihardi; Munirwansyah, Munirwansyah; Saleh, Sofyan M.
Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Vol 1, No 3 (2018): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (312.141 KB) | DOI: 10.24815/jarsp.v1i3.11768

Abstract

Road infrastructure is very important and is a key enabler for the economy. If the road infrastructure was damaged or had various problems such as sliding, the movement of goods and passengers will be hampered and delayed to the acceleration of development in the local area. The landslide and movement of groundwater is a problem that often occurs repeatedly on some streets. Therefore, it is necessary to study the strengthening of the slopes at the bottom of the road construction with retaining wall. This study aims to analyze slope stability by getting numbers Safety Factor (FK). The analysis is used to analyze the stability of slopesusing the finite element method with the help of software Plaids, The scope of this review includes the calculation of slope stability at the national road from Banda Aceh - Medan Sta. 83 + 185 Mount Selawah. The results of slope stability analysis on the existing condition by using Plaxis software at the point of a review is not safe (FK <1.25). Thus, it is done handling the retaining wall, installation of anchors. Based on the analysis of slope stability after being given the strengthening of the slopes with a retaining wall and the installation of anchors using Plaxis software under the influence of traffic load in an unsafe condition (FK <1.25). Then additional handling is done by changing the angle of the slope so that the value of the safety factor (FK)> 1.25.
PENGARUH KAPUR SEBAGAI STABILIZING AGENT TERHADAP INDEKS PLASTISITAS DAN KUAT GESER LEMPUNG EKSPANSIF MEUNASAH RAYEUK Syamdiofa, Teuku Julis; Munirwansyah, Munirwansyah; Anggraini, Renni
Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Vol 1, No 4 (2018): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.339 KB) | DOI: 10.24815/jarsp.v1i4.12460

Abstract

Clay soil from Desa Meunasah Rayeuk quarry in Kaway XVI,  West Aceh Regency is a land material frequently used for construction of road infrastructure. In this quarry, there are three types of soil based on the color, yellow, red, and gray. The three types of soil have expansive characteristics, so they are not suitable for subgrade.  This unoptimal characteristic can be improved through soil stabilization. One of them by utilizing the reaction of catinonization between lime Ca(OH)2 with the clay soil. Therefore, a research needs to be conducted to find out the characteristics of physical and mechanical properties of the original soil and the effect of cationization of the soil and lime mixture on the soil plasticity index and soil shear strength parameters. Testing is done through mineralogical test and ASTM standard tests that include physical properties, standard compaction, and direct shear strength test. Variations of lime addition are 0%, 3%, 6%, 9%, and 12% of the soil dry weight. The test results show that the addition of lime can reduce the soil plasticity index and increase the shear strength of the soil on some level. At mixing up to 12% lime, the soil plasticity index dropped to 12.93% in yellow clay, 11.12% in red clay, and 16,76% in gray clay. The plasticity index after the addition of 12% lime has not met the minimum plasticity index requirement, ie 11%. The maximum shear strength for yellow clay is obtained at 3% lime, and 6% lime for red and gray clays.