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Program Studi Teknik Sipil, Fakultas Teknik Universitas Bengkulu Jl. W.R. Supratman, Kandang Limun, Bengkulu
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INDONESIA
Inersia : Jurnal Teknik Sipil
Published by Universitas Bengkulu
ISSN : 20869045     EISSN : 26865017     DOI : https://doi.org/10.33369/ijts
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Each volume contains two editions. The first edtion is published in April and the second one in October. This journal accomodates the research result in the area of civil engineering, i.e. Construction Management, Geotechnical Engineering, Structural Engineering, Transportation Engineering and Water Resources Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 7 Documents
 1 
Search results for , issue "Vol. 14 No. 1 (2022)" : 7 Documents clear
PENGARUH PENGGUNAAN DRAINASE VERTIKAL KERIKIL TERHADAP PENURUNAN TANAH DAN MODEL RUMAH AKIBAT LIKUIFAKSI Setiawan, Hendra; Hilmansyah, Teguh; Arman, Arman
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.11-20

Abstract

Liquefaction that occurred in Palu on September 28, 2018 shows that housing is the most damaged construction. Therefore, research for liquefaction mitigation devoted to residential residents becomes very necessary to be carried out, especially with simple and inexpensive mitigation methods, so that it can be affordable to most people. The selection of hollowed wood sticks as a strengthening material in this mitigation is expected to increase soil density and reduce the decrease that occurs due to liquefaction and holes made is a drainage system where at the time the pressure of pore water rises at the time of water doubling can flow in the holes that are still made or the ability of a soil in escaping water.  The purpose of this study is to determine the effectiveness of the use of reinforcing logs that are perforated against soil deformation on a 1-layer variation, a 2-layer variation and a new home strengthening variation. From  experimental testing obtained the percentage of effectiveness of the use of logs perforated as strengthening on several variations  are as follows: For the variation of strengthening 1 layer (old house) by 13.92%, the variation of strengthening 2 layers (old house) by 26.58% and for the variation of new home strengthening as much as 54.94%.
ANALISIS STABILITAS LERENG MODIFIKASI- STABILISASI TANAH DENGAN PENAMBAHAN KAPUR (Studi Kasus Area Kantor Pemda Seluma) mawardi, mawardi
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.54-62

Abstract

ABSTRACTSeluma regency area often occurs landslide disaster and one of them is located in Local Government Authority Seluma area. This study aims to analyze the stability of the slope by using finite element method, so it is known that the safety factor (SF) and the soil type.  The study was started by testing physical and mechanical properties of the soil, then slope stability analysis was done by finite element method program to find out FK. The result of soil physical properties test shows that the land on the slope of Local Government Authority Seluma area is clay soil. Calculation of slope stability analysis using finite element method by considering the effect of pore water to get the safest result on slope cement stabilization soil 1 Contour A, SF= 1,817 with a slope angle of 34o. The slopes studied in the Local Government Authority in Seluma Regency are all prone to landslides or unsafe because SF is < 1,5. Based on the results of the research from the safest slope, it was concluded that the value of the Safety Factor (SF) of soil stabilization of limestone was 1,817 bigger than the value of the safety Factor (SF) of soil compaction was 1,619 and the value of the safety Factor (SF) of soil compaction was 1,399 bigger than the value of the safety Factor (SF) of the original soil was 1,483.Key Words : Finite Element Method, Safety Factor, Modifications slope, Slope StabilityABSTRAKAreal Kabupaten Seluma sering terjadi peristiwa longsor dan salah satunya berada di kawasan Kantor Pemda Seluma. Penelitian ini bertujuan untuk menganalisis stabilitas lereng dengan menggunakan metode finite element, sehingga diketahui faktor keamanan (FK) dan jenis tanah. Penelitian dimulai dengan melakukan uji sifat fisis dan mekanik tanah, kemudian dilakukan analaisis stabilitas lereng dengan metode finite element untuk mengetahui FK. Hasil pengujian sifat fisis tanah menunjukan bahwa tanah pada lereng dikawasan Kantor Pemda Seluma adalah tanah lempung. Perhitungan analisis stabilitas lereng menggunakan metode finite element dengan mempertimbangkan pengaruh air pori mendapatkan hasil yang paling aman pada tanah stabilisasi Kapur lereng 1 Kontur A, FK= 1,817 dengan kemiringan sudut lereng 34o. Lereng yang diteliti di kawasan Kantor Pemda Seluma semuanya rawan longsor atau tidak aman karena FK < 1,5. Berdasarkan hasil penelitian dari lereng yang paling aman disimpulkan bahwa nilai Faktor Keamanan (FK) tanah stabilisasi Kapur adalah 1,817 lebih besar dari nilai Faktor Keamanan (FK) Tanah pemadatan adalah 1,619 dan nilai Faktor Keamanan (FK) tanah pemadatan adalah 1,619 lebih besar dari nilai Faktor Keamanan (FK) tanah asli adalah 1,483Kata Kunci : Metode Finite Element, Faktor Aman, lereng modifikasi, Stabilitas Lereng
ANALISIS NILAI CBR DESAIN TANAH DASAR DENGAN DYNAMIC CONE PENETROMETER PADA PEKERJAAN LONGSORAN STA 1+600, RUAS 041 RUAS JALAN NASIONAL PADANGSIDIMPUAN – BATAS SUMBAR Muda, Anwar
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.21-27

Abstract

The background of the research is that landslides often occur at the location of sta 1+600, section 041 or to be precise in Purba Lamo Village, Lembah Sorik Marapi District Mandailing Natal Regency, North Sumatra,  and efforts have been made with emergency handling with coconut stem stakes and assisted with sand back. slides still occur. In 2021, landslides will be handled at this location, but the avalanches are not handled, but instead a road route is diverted with the aim of avoiding and keeping traffic away from the landslide point location. Meanwhile, the work of diverting the route of this road is the same as making a new road, where every new road construction requires data on the carrying capacity of the subgrade by testing the CBR value. To get the CBR value of the subgrade in this study, the Dynamic Cone Penetrometer (DCP) test was carried out.The results of the DCP test showed that the CBR value of the subgrade design was 1.80%, so that this soil was classified as a soil that had poor subgrade bearing capacity or organic soil. 
PENGARUH PENGGUNAAN ABU TERBANG (FLY ASH) SEBAGAI BAHAN TAMBAH TERHADAP KUAT TEKAN MORTAR Azizah, Titanya; Wahyuni, Ade Sri; Islam, Mukhlis; Gunawan, Agustin; Afrizal, Yuzuar
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.28-34

Abstract

Mortar is material used in non-structural elements. The increasing of quality of the mortar can be obtained by adding other alternative materials to its constituent materials. The materials that have pozzolan characteristic can increase the compressive strength of the mortar. Fly ash has a pozzolan characteristic and contains silica so that it can be used as an additive to cement. This study aims to know the compressive strength of mortar by using fly ash as the additional material of cement with the ratio of cement to fine agregate were 1pc : 3ps on 14, 21, and 28 days. The sample of the mortar is a cuboid sized 50mm x 50mm x 50mm. The variations of fly ash used were 5%, 10%, 15%, and 20% with 7 samples in each variations. The range of initial flow values was between 105%-115% (SNI 03-6882-2002). The biggest compressive strength value for normal mortar is 11.15 MPa and the biggest compressive strength for the variation of mortar is 14.43 MPa at 15% variation at 28 days. The percentage increase in the compressive strength of the mortar is 29,48% from normal mortar.
Analisis Kerusakan Jalan Berdasarkan Metode Surface Distress Index (Sdi) (Studi Kasus : Jalan Meranti Kota Pekanbaru Provinsi Riau) -, Muhaimin; -, Winayati; Soehardi, Fitridawati
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.35-40

Abstract

Jalan merupakan sarana transportasi yang paling sering digunakan oleh sebagian besar masyarakat, sehingga mempengaruhi aktifitas masyarakat sehari-hari.Tujuan penelitian ini adalah untuk mengetahui Jenis dan tingkat kerusakan jalan Meranti beserta jenis penanganannya. Panjang jalan yang diteliti pada penelitian ini adalah sejauh ±1600 m yang nantinya akan dibagi menjadi empat segmen dengan panjang masing-masing tiap segmen 400 m. Dalam penelitian ini penulis menggunakan metode Surface Distress Index (SDI). Data yang diperlukan dalam melakukan penelitian ini adalah berupa dimensi kerusakan baik itu panjang, lebar dan kedalaman kerusakan. Berdasarkan hasil data dilapangan yang telah diolah didapatkan jenis dan tingkat kerusakan jalan seperti jalan berlubang 25,094%, Retak 67,381% dan alur bekas roda kendaraan sebesar 7,482%. Sedangkan untuk kondisi dan jenis penanganan kerusakan pada jalan Meranti Kota pekanbaru adalah pada Segmen I, II dan IV masuk kedalam kategori Baik dengan jenis penanganan kerusakannya adalah Pemeliharaan Rutin dan pada segmen III masuk kedalam kategori rusak ringan dimana penanganan kerusakannya adalah rehabilitasi jalan.
PERILAKU DAN KETAHANAN STRUKTUR RUMAH VERNAKULAR DESA GUNUNG ALAM LEBONG TERHADAP GEMPA BUMI Bahri, Samsul; Hanif, muhammad Fauzan; Islam, Mukhlis; Prihatiningrum, atik
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.1-10

Abstract

Lebong Regency is an earthquake-prone area in Bengkulu Province. This is because Lebong Regency is located adjacent to the Bukit Barisan Mountains which are included in the earthquake-prone zone and in the line of active faults. This research was conducted at Mr. Sonid’s vernacular house in Gunung Alam Village, Pelabai District, Lebong Regency to determine the behavior and the resistance of its structure.The behavior and resilience of the vernacular house structure against earthquakes is analyzed based on SNI 1726:2019. The analysis was carried out using SAP 2000 software to obtain the actual internal forces in the form of bending moment (M), shear force (V), and compressive force (P).The capacity of the wood structure was analyzed using the Load and Resistance Factor Design (LRFD) method which refers to SNI 7973:2013 to obtain adjusted moment capacity values (M'), adjusted compression capacity (P'), and adjusted shear capacity (V').The results of structural analysis of earthquakes produce the same actual internal forces in medium and soft soil conditions so that all structural elements of the vernacular house have the same structural behavior.Analysis of the capacity of the wooden structure results the adjusted internal forces of some structural elements which are smaller than the actual internal forces, so that the vernacular house structure is unable to withstand the forces that occur. However, based on the earthquake and its impact until this research was conducted, the condition of the vernacular house still stands strong without any damage to its structural elements.
STUDI POTENSI LIKUIFAKSI PADA SEKITAR JALAN JAMUR KELURAHAN BALAROA KOTA PALU Triandys, Risma; Oktaviana, Ida Sri; Irdhiani, Irdhiani
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.%p

Abstract

Provinsi Sulawesi Tengah merupakan salah satu daerah di Indonesia yang rawan terjadi gempa bumi berkekuatan besar dan dampak kerusakan yang ditimbulkannya cukup luas. Pergerakan tanah yang diduga diakibatkan oleh likuifaksi di perumahan Balaroa dan Petobo termasuk yang paling banyak merenggut korban jiwa dan merusak berbagai sarana dan prasarana. Dari hasil pengamatan di lapangan juga mendapatkan informasi adanya campuran air dan lumpur pasir yang keluar dari dalam tanah pada beberapa lokasi di kota Palu, misalnya yang terdapat di sekitaran jalan Jamur Palu Barat, Peristiwa ini menyebabkan terjadinya kerusakan pada struktur bangunan. Penelitian ini bertujuan untuk mengetahui bagaimana karakteristik sifat fisik dan mekanis dan potensi likuuifaksi dari tanah yang diduga terlikuifaksi di kota Palu. Penelitian ini dilakukan dengan cara mengambil sampel tanah menggunakan alat hand boring serta melakukan uji Cone Penetration Test (CPT) pada titik yang diduga mengalami likuifaksi, kemudian dilakukan analisa data dengan menghitung nilai Cyclic Stress Ratio (CSR), Cyclic Resistance Ratio (CRR), dan FS. Hasil dari analisa data CPT/Sondir untuk menentukan jenis tanah dengan korelasi dari tabel dan diagram Mayne diindikasikan bahwa jenis tanah di lokasi penelitian adalah pasir, pasir berlanau atau lanau berpasir. Adapun potensi likuifaksi berdasarkan nilai FS dari hasil analisa menunjukkan bahwa likuifaksi terjadi pada kedalaman yang bervariasi yang rata-rata pada kedalaman kurang dari 10 m.

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