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Jurnal Riset Rekayasa Sipil
Published by Universitas Sebelas Maret
ISSN : 25797999     EISSN : -     DOI : -
Core Subject : Social, Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science
The Journal of Research and Civil Engineering is a journal to accommodate the writings of researchers and professionals in the field of civil engineering.
Arjuna Subject : -
Articles 86 Documents
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KEMIRINGAN LERENG YANG TEPAT UNTUK MENCEGAH KELONGSORAN DI DESA BARENG KECAMATAN SAWAHAN KABUPATEN NGANJUK Pasya, Salman Alfaridh; Candra, Agata Iwan; Erwanda, Niko Andika; Fathurrohman, Nadi Rheiza; Qalby, Atsfiela Dzulkhan; Rohman Fauzy, Muhammad Rosyid Abdul; Mahendra, Prendy Eliya
Jurnal Riset Rekayasa Sipil Vol 7, No 2 (2024): Maret 2024
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v7i2.85905

Abstract

Sawahan District is one of 25 sub-districts in Nganjuk Regency, East Java, Indonesia. Sawahan District has quite good agricultural and tourism potential. Recently, landslides have hit several areas in Nganjuk Regency, one of which is Sawahan District. The area has the potential for landslides because it is dominated by hilly areas with steep slopes and high rainfall intensity. The impact of this disaster included road access that was cut off between the village and the sub-district and the main road leading to the Sedudo Waterfall tour. This study aims to identify soil properties, soil consistency, shear angle, and slope safety factor. The method used is the Atterberg limit test, sieve analysis, soil shear strength, and slope stability calculations using the Bishop method. The test results show that the soil is classified as CL with low plasticity and shear angle, in wet soil it produces a shear angle value of 19.74° and an Fs value of 0.20 while in dry conditions it produces a shear angle value of 24.86° and an Fs value of 0.28. Based on the analysis it is suggested that the slope is 50° to achieve Fs 1.09. This research can be used as a basic reference for planning before construction is carried out and provides slope slope design recommendations for slope planning that is safe to prevent landslides.
ANALISIS KINERJA SIMPANG EMPAT TRUNOJOYO – KH. SAJAD – DR. WAHIDIN KABUPATEN SUMENEP MENGGUNAKAN PERANGKAT LUNAK PTV VISTRO Nugraha, Nur Aryasatya; Hidayati, Lydia Novitriana Nur; Yulianto, Budi
Jurnal Riset Rekayasa Sipil Vol 9, No 1 (2025): September 2025
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v9i1.109779

Abstract

Intersection Four Trunojoyo - KH. Sajad - Dr. Wahidin are intersections included in the Trunojoyo road network. Intersection Four Trunojoyo - KH Sajad - Dr. Wahidin is a newly implemented intersection because it was not an intersection five years ago. The research aims to analyse the performance of the signalised intersection at the Trunojoyo - KH Sajad - Dr. Wahidin. The study analysis used PTV Vistro software. The modelling method refers to HCM 2010. Modelling is done with two scenarios: existing and locally optimised conditions. After modelling the existing conditions, validation is carried out through queue length using Microsoft Excel software. There is an increase in performance modelling when a single optimisation scenario and vehicle actuated is carried out compared to existing conditions. In the existing conditions, the Trunojoyo - KH. In the morning peak hour, Sajad - Dr. Wahidin Interchange produces a DS value = 0.39, D = 34.52 seconds /mp, and the afternoon peak hour DS value = 0.41 and D = 38.59. The best optimisation performance is in the vehicle actuated optimisation type scheme 1, with an extension time of 2 seconds. The intersection of Trunojoyo - KH. Sajad - Dr. Wahidin has a degree of saturation (DS) = 0.34 and delay = 19.4 sec/smp in the morning peak hour, while the afternoon peak hour produces a degree of saturation (DS) = 0.41 and delay = 21.18 sec/smp. The use of detectors in PTV Vistro modeling can improve intersection performance, followed by the appropriate setting of other signal parameters.
IDENTIFIKASI WASTE DENGAN MENERAPKAN METODE BORDA DAN ROOT CAUSE ANALYSIS PADA PROYEK KONSTRUKSI Nabilah, Veren Nurlin; S, Setiono; Setyawan, Ary
Jurnal Riset Rekayasa Sipil Vol 8, No 2 (2025): Maret 2025
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v8i2.101620

Abstract

One of the factors contributing to Indonesia’s high annual construction activity is the building of high-rise structures. However, every building project can potentially create several issues that lead to waste. Lean construction which aims to reduce waste and increase value, was therefore used. Waste is any type of loss from an activity that produces expenses either directly or indirectly but does not result in a product’s value or benefits. The purpose of this study is to determine the most common types of garbage and examine the factors that contribute to it. This research will include a review to identify the variables that contribute to waste and factors that cause it, as well as a root cause analysis using the 5-why’s method. According to the computation’s findings, the most common waste variables and their causing factors were 179 points for defects and careless supervision, 155 points for overprocessing and a factor for misunderstandings brought on by design modifications, and 145 points for overproduction and factor related to a lack of control material production. Defects are the main cause of waste because they prevent cost overruns, overprocessing because of a lack of resources for creating new design drawings, and overproduction because the planning and production implementation teams in the field do not coordinate.
ANALISIS EARNED VALUE TERHADAP BIAYA DAN WAKTU GEDUNG DIREKTORAT POLITEKNIK PU SEMARANG DENGAN PRIMAVERA P6 Eka Nugraha, Noel; Sri Handayani, Fajar; Setiono, Setiono
Jurnal Riset Rekayasa Sipil Vol 8, No 1 (2024): September 2024
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v8i1.85304

Abstract

Semarang PU Politeknik Building Construction Project is the construction of an educational building area developed in collaboration between PT Wika Gedung and PT Yodya Karya with a construction management consultant contract value of 3.9 billion and an executing contractor contract value of 281 billion. In this research, a research method with a quantitative descriptive approach was taken. This means that in this project, the condition of the project is described based on the analysis of the data obtained from the project. The data is then processed using descriptive and analytical methods. The Earned Value or EV concept method studies comparing the value of the work completed against the budget provided to carry out the work. The result of this research is to analyze using the Primavera P6 program whether the project is running at an appropriate cost and a schedule that does not deviate from the contract. The results of the analysis obtained for the implementation of the weekly analysis of the Earned Value indicator value obtained is positive which means that in the entire week of analysis, the project runs faster and more economically. The EAC and ETC values obtained are smaller than the contract cost, indicating that the project is planned to be completed at a smaller cost. The deviation value obtained is at an average of 0.08% with the smallest deviation being 0.0794% so the project will experience a profit of 8% on the completion date.
STUDI EKSPERIMENTAL PENGARUH JENIS SEKRUP TERHADAP KEKUATAN DAN KEGAGALAN SAMBUNGAN PADA DINDING CLT (CROSS LAMINATED TIMBER) KAYU AKASIA YANG SEJAJAR Nyolinda, Shinta Putri; Basuki, Achmad; Saifullah, Halwan Alfisa
Jurnal Riset Rekayasa Sipil Vol 9, No 1 (2025): September 2025
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v9i1.104558

Abstract

Penelitian ini bertujuan untuk menganalisis kapasitas geser dan mode keruntuhan sambungan antar dinding Cross Laminated Timber (CLT) kayu akasia sejajar dengan sambungan half lap joint dan variasi jenis sekrup (lag screw, tapping screw, dan drilling screw). Pengujian geser sambungan dilakukan menggunakan Universal Testing Machine. Hasil penelitian menunjukkan bahwa sambungan dengan lag screw memiliki kapasitas geser tertinggi (14,57 kN) dan deformasi maksimum terbesar (13,7 mm) dibandingkan tapping screw dan drilling screw. Berdasarkan analisis mode keruntuhan, lag screw, tapping screw dan drilling screw mengalami mode keruntuhan IIIm. Sambungan dengan lag screw merupakan sambungan paling efektif karena menunjukkan performa struktural terbaik.
PEMETAAN KERAWANAN BANJIR DI KOTA SURAKARTA Ramadhan, Faisal Adyaksa; Hadiani, Rintis; Muttaqien, Adi Yusuf
Jurnal Riset Rekayasa Sipil Vol 7, No 2 (2024): Maret 2024
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v7i2.85907

Abstract

Floods have become one of the problems occurring in the city of Surakarta. The floods are caused by the overflow of the tributaries of the Bengawan Solo River, located within the Surakarta City area. One of the strategies for flood disaster management is through flood zone mapping. In flood vulnerability mapping, hydrological analysis is conducted to determine the magnitude of the flood discharge for different return periods (Q2, Q5, Q10, Q25, and Q50) using the HSS SCS method, which will serve as input for the HEC-RAS program to simulate floods, used as determining variables in flood vulnerability mapping. The results of the flood simulation analysis indicate that the level of vulnerability in non-vulnerable areas has a flood area limit ranging from 1.05 ha to 8.93 ha, a maximum flood depth limit ranging from 0.24 m to 0.57 m, and a maximum flood velocity limit ranging from 0.06 m/sec to 0.21 m/sec. For areas with low vulnerability, the flood area limit ranges from 8.93 ha to 16.80 ha, the maximum flood depth limit ranges from 0.57 m to 0.90 m, and the maximum flood velocity limit ranges from 0.21 m/sec to 0.35 m/sec. For areas with moderate vulnerability, the flood area limit ranges from 16.80 ha to 24.68 ha, the maximum flood depth limit ranges from 0.90 m to 1.23 m, and the maximum flood velocity limit ranges from 0.35 m/sec to 0.50 m/sec. For areas with high vulnerability, the flood area limit ranges from 24.68 ha to 32.55 ha, the maximum flood depth limit ranges from 1.23 m to 1.55 m, and the maximum flood velocity limit ranges from 0.50 m/sec to 0.64 m/sec.
ANALISIS KEKUATAN DAN KEGAGALAN SAMBUNGAN SEKRUP DENGAN PERKUATAN PLAT SIKU PADA DINDING TEGAK LURUS CLT AKASIA Kuncara, Yaladita Alya; Basuki, Achmad; Saifullah, Halwan Alfisa
Jurnal Riset Rekayasa Sipil Vol 9, No 1 (2025): September 2025
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v9i1.103271

Abstract

Konstruksi berbasis kayu mengalami perkembangan pesat dengan munculnya Cross Laminated Timber (CLT), material inovatif yang menawarkan kekuatan tinggi, stabilitas dimensi, dan keberlanjutan. Salah satu aspek penting dalam penerapan CLT adalah desain sambungan dinding tegak lurus. Penelitian bertujuan menganalisis kapasitas geser dan modulus keruntuhan sambungan CLT yang menggunakan sekrup dengan jenis yang berbeda, yaitu tapping screw dan lag screw dengan diameter 5 mm.  Sambungan ini dipasang dengan menghubungkan 3 panel CLT secara tegak lurus dan diperkuat dengan pelat siku. Sambungan CLT lag screw memiliki kapasitas geser maksimum yang lebih besar dibandingkan sambungan CLT tapping screw dengan rata-rata 31,77 kN, dan sambungan CLT tapping screw 28,02 kN. Rata-rata deformasi terbesar pada sambungan CLT tapping screw sebesar 23,49 mm dan lag screw 21,07 mm.  Pelat siku memiliki kapasitas tarik sebesar 560 MPa. Modulus keruntuhan diambil dari nilai terkecil yaitu pada mode kelelehan IIIm sebesar 0,0989 kN. Rasio perbandingan kapasitas geser eksperimental dengan kapasitas geser estimasi untuk sambungan CLT tapping screw sebesar 17,7 dan lag screw 20,07.
PEMODELAN KUALITAS AIR TANAH OLEH AIR LIMBAH DOMESTIK MENGGUNAKAN ARCGIS DI DESA KERTALANGU Gde Mahayana, Rakyan Agung
Jurnal Riset Rekayasa Sipil Vol 7, No 2 (2024): Maret 2024
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v7i2.85898

Abstract

The community living in Kesiman Kertalangu Village, East Denpasar, Denpasar City, Bali, has a few open shallow wells at home. Well water is used for daily activities such as washing, washing vehicles, and watering plants. The main source of water is groundwater, which is found in rocks below the earth's surface. The availability and movement of groundwater depends on the geological conditions of the area. Groundwater that is used as a source of community life must meet good water quality, so the purpose of this study was to determine the condition of groundwater during the study. The samples used for groundwater testing were 30 wells spread across this village. The methods used were interviews with the local community, field testing of well water samples (smell and temperature tests), laboratory tests (pH, TSS, TDS, DHL and microbiology) and modeling analysis of all research data results using the ARCGIS application. The research results obtained were field tests such as odor tests and temperature tests that passed the clean water requirements because they met the standards set by the Ministry of Health. laboratory tests such as the TDS, TSS and DHL tests have met the requirements as clean water because the number of solid particles dissolved in water and gas is below the specified limits, and the amount of suspended solids in water is also below the limits. Microbiological test results showed that several points were quite polluted by E.Coli and Total Coliform bacteria caused by the distance between the well points and the septic tank in people's homes.
VALIDASI DATA HUJAN SATELIT TERHADAP DATA GROUND UNTUK ESTIMASI DEBIT ANDALAN DI KOTA SURAKARTA Saputro, Maknun Seno Aji; Hadiani, Rintis; As’ad, Sholihin
Jurnal Riset Rekayasa Sipil Vol 8, No 2 (2025): Maret 2025
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v8i2.101899

Abstract

Rainfall plays a critical role in the hydrological cycle, affecting various sectors such as water resource management, agriculture, and disaster mitigation. The Global Precipitation Measurement (GPM) satellite is a significant innovation in global rainfall measurement. The availability of GPM satellite data is particularly beneficial for regions with limited ground-based rainfall station data. This study validates rainfall data from the Global Precipitation Measurement (GPM) satellite against ground observation data to calculate dependable flow in Pepe River, Surakarta, using the National Rural Electric Cooperative Association (NRECA) method. The analysis spans data from 2004 to 2024. Validation results show a strong correlation (R = 0,7315) but notable deviations with Root Mean Square Error (RMSE) = 0,415 and NSE = 0,667. Post-calibration (coefficient 0,856), the correlation improves significantly (R = 1, RMSE = 0,016, NSE = 0,758). Dependable flow analysis identifies February as the month with the highest average discharge (1,163 m3/s) and highlights 2017 as the year with a Q80% value of 4,578 m3/s using the Weibull Basic Month method. Comparison of Q80% results with field discharge data, obtained through rating curve conversion, shows that the Q80% value falls within the standard deviation range of field discharge, validating the calculated results. The results of this study are expected to provide insights into the quality of GPM satellite rainfall data for dependable flow estimation.
PENGARUH KADAR AKTIVATOR DAN RASIO SS/SH PADA BETON GEOPOLIMER TERHADAP KUAT TEKAN Budi, Agus Setiya; Tampubolon, Jericho Fernandez
Jurnal Riset Rekayasa Sipil Vol 8, No 1 (2024): September 2024
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v8i1.98780

Abstract

Beton konvensional memiliki dampak yang signifikan terhadap jejak karbon yang diakibatkan karena proses produksinya, terutama pembuatan bahan utamanya, yaitu semen. Oleh karena itu diperlukan segera upaya untuk mencari material lain sebagai pengganti semen dalam pembuatan beton. Salah satu pengganti semen dalam pembuatan beton adalah dengan beton geopolimer. Beton geopolimer merupakan beton yang memiliki reaksi berbeda dengan beton konvensional yaitu reaksi polimerisasi. Beton ini menggunakan limbah dari hasil pembakaran batu bara berupa fly ash yang membutuhkan aktivator untuk mengikat campuran fly ash dengan pasir dan kerikil. Penelitian ini akan meninjau pengaruh kadar aktivator dan variasi rasio SS/SH terhadap kuat tekan beton pada umur 28 hari. Bahan kimia yang digunakan untuk mengaktifkan reaksi polimerisasi pada fly ash adalah dengan menggunakan alkali hidroksida dan alkali silika atau dengan sodium silikat (SS) dan sodium hidroksida (SH). Metode yang digunakan pada penelitian ini adalah metode eksperimen yang dilakukan di laboratorium dengan benda uji silinder tinggi 30 cm dan diameter 15 cm dengan menggunakan kadar aktivator 0,33 untuk perbandingan alkali dengan fly ash dan variasi SS/SH sebesar 0,5 ; 1,0 ; dan 1,5. Berdasarkan hasil eksperimen didapat kuat tekan maksimum sebesar 41,16 MPa pada rasio SS/SH 1,5.

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