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POTENSI RAINWATER HARVESTING DALAM MENGURANGI RISIKO KEKERINGAN DI KABUPATEN KARAWANG Rahmawati, Dian Afifah; Nugroho, Eka Oktariyanto; Kusuma, Muhammad Syahril Badri; Cahyono, M.; Juliana, Imroatul C.; Gunawan, Taufik Ari
Jurnal Riset Rekayasa Sipil Vol 7, No 1 (2023): September 2023
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v7i1.79198

Drought occurs quite often in Indonesia, closely related to water availability for community needs. One of the districts in West Java Province experiencing drought problems is Karawang district, where the RWH (Rainwater Harvesting) concept will be applied. This study aimed to analyze the risk of drought-related to applying the potential RWH in reducing drought risk. This study only focuses on meteorological drought, determined by SPI (Standardized Precipitation Index). Identification of potential areas for the application of RWH is carried out using the Weighted Method Overlay approach in the Geographic Information System (GIS), which was modified by adding a parameter of potential drought hazard. The potential reliability of RWH, as seen from Volumetric Reliability (VR) for supplying the average water requirement of MCK (Bath Washing Toilet) per year, indicates that most of the Karawang district area is potential for applying RWH. The results of adding the potential drought hazard parameters on applying the RWH concept show the decreasing area of very potential and potential category areas into 5,38%, the increase of drought resistance capacity is 17.5%, and the risk-reducing to 8.3%. Those results are due to the changes in the area of drought in the risk analysis. The assumptions of 60 rainy days on the average rainy day in a year and all households making RWH storage systems were used in the analysis. The results of this study can be used as a first step to see the potential of RWH in Karawang Regency both in terms of area and reliability.

PENURUNAN FONDASI TIANG TUNGGAL PADA PEMBEBANAN LATERAL AKIBAT PENAMBAHAN BEBAN AKSIAL Majid, Aziz Abdul; Setiawan, Bambang; Surjandari, Niken Silmi
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.v8i2.101616

The pile foundation is the lower building structure that supports the above structure. Pile foundations withstand combined loads from the vertical and horizontal directions. In the field, both loads work simultaneously. However, in Indonesia, in general, the axial and lateral loading tests are carried out separately. Related to this, there have been few investigations on the influence of combined loads on pile foundations. These led to inconsistent results to the effects of adding the axial load on the lateral loading. The three-dimensional finite element method is used in this study to analyze the effect of vertical displacement on a single pile foundation with the additional axial loads on lateral loads. Two pile foundation models were made, the first pile foundation model is a single pile foundation without a pile cap, while the second pile foundation model is modeled with a pile cap. Two models were applied by the lateral load with the additional variation axial load of 0H, 0.25H, 0.5H, 0.75H, and 1H. The vertical displacement is significantly decreased in the pile foundation model with a pile cap compared to the pile foundation model without a pile cap. The reduction in vertical displacement of pile foundations with a pile cap due to the addition of axial loads affects up to 30%, 24%, 19%, 16%, 14% of pile foundations without a pile cap, respectively. This research is expected to help decision making consideration in the design and planning for pile foundations.

SEISMIC PERFORMANCE ANALYSIS OF CIRCULAR-SHAPED BUILDINGS IN PADANG Parawansyah, Hovifah Indra; Setiawan, Agustinus Agus
Jurnal Riset Rekayasa Sipil Vol 9, No 2 (2026): Maret 2026
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v9i2.109532

Indonesia is a country with high seismic activity due to its location on the convergence of several tectonic plates, making earthquake-resistant structural design a crucial aspect of construction. This study aims to analyze the seismic performance of circular-shaped buildings based on displacement, story drift, and base shear, as well as to calculate the structural work volume. The modeling was carried out using Robot Structural Analysis Professional (RSAP 2025) software. The earthquake load analysis was performed using the equivalent static lateral force procedure in accordance with SNI 1726:2019, with the research location in Padang City. The analysis results show that the 8-story building experiences a maximum displacement of 22.56 mm in the X direction and 51.08 mm in the Y direction; the 5-story building has a maximum displacement of 6.33 mm in the X direction and 35.86 mm in the Y direction; and the 3-story building experiences 1.37 mm in the X direction and 7.98 mm in the Y direction. The maximum story drift for the 8-story building is 19.91 mm (X) and 43.34 mm (Y); for the 5-story building, 8.36 mm (X) and 48.51 mm (Y); and for the 3-story building, 2.86 mm (X) and 17.71 mm (Y). The base shear values are 4,950.56 kN for the 8-story building, 4,485.20 kN for the 5-story, and 2,691.12 kN for the 3-story building. The concrete requirement ratio is 0.287 m³/m², and the steel reinforcement requirement ratio is 150.31 kg/m³.

PENDEKATAN PEMBANGUNAN DAMPAK RENDAH UNTUK SUMUR RESAPAN DAN ANALISIS BIAYA INVESTASINYA DI WILAYAH PERKOTAAN Kurnianingsih, Oktavia; Deni, Delista Putri
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.v8i1.95312

Flood, economic and environmental problems in the implementation of sustainable drainage systems in developing countries are very complex. The use of infiltration wells as an alternative method to infiltrate groundwater as one of the low-impact developments. Infiltration wells function to accommodate and absorb water into the soil. The high growth of the population led to an increase in development. Development that has an impact on the reduction of catchment areas, this research aims to approach the low-impact development strategy (LID) in urban areas in developing countries. Sustainable drainage development is still limited to the regional budget. Cost analysis was carried out by hydrological modeling for infiltration well planning. Infiltration wells are chosen as sustainable drainage. Infiltration wells can reduce the risk of flooding and drought. Discharge analysis with the Rational Method. The planning of the dimensional infiltration well was calculated using the Sunjoto formula and the basic design using filitration. The infiltration well model is planned with a depth of 1.7 m and a diameter of 1 m. The cost of making an infiltration well is Rp 2,125,500 for one well. This research is expected to help decision-making in sustainable urban water management. Flood and drought mitigation balancers and costs.

PENERAPAN ANALISIS EARNED VALUE DAN OPTIMASI DENGAN METODE TIME COST TRADE OFF PADA PROYEK TOL KATARAJA SEKSI 1 JAKARTA-BANTEN Yuwono, Daltaliya Aisyah; Setiono, Setiono; Handayani, Fajar Sri
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.v9i1.107095

Proyek Tol Kataraja Seksi 1 memiliki tantangan dalam batasan waktu, mutu, dan biaya untuk mencapai tujuan. Perkembangan pelaksanaan proyek yang dinamis berisiko pada keterlambatan waktu penyelesaian atau pembengkakan biaya bisa terjadi karena pada perencanaan awal yang memberikan dampak terhadap keseluruhan pekerjaan pada proyek. Upaya Pengendalian yang dilakukan adalah dengan metode Earned Value Analysis (EVA) untuk menilai kinerja pelaksanaan proyek dan optimasi dengan time cost trade off untuk mengoptimalkan pelaksanaan proyek. Hasil dari EVA diperoleh bahwa pada minggu ke-40 dan minggu ke-48 biaya yang dikeluarkan sesuai dengan rencana tetapi mengalami keterlambatan. Alternatif optimasi TCTO yang dilakukan didapatkan hasil yang paling efisien, yaitu penambahan 2 pekerja dengan penurunan biaya sebesar Rp 60,357,475.11 dengan nilai efisiensi 0.0145% dan pengurangan durasi sebanyak 6 hari dari durasi normal (254 hari) dengan efisiensi 2.3622%. Hasil analisis menunjukkan bahwa penambahan dua pekerja merupakan strategi paling efisien untuk optimasi biaya dan waktu, yang dapat dijadikan referensi dalam perencanaan proyek jalan tol serupa.

ANALISIS NILAI CBR SEBAGAI PARAMETER KRITIS UNTUK PERENCANAAN JALAN RAYA Putri Wilis, Sofya Marinda; Cahyono, Andri Dwi; Farihi, Moh. Ilham; Aziz Hanafi, Moh. Abdul; Cintya, Hanifatus; Ibrahim, Malik; Asih, Mia Setiyo
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.v7i2.85903

Infrastructure development is one indicator of a country's progress that cannot be ignored. Road infrastructure is an important part of the transportation system that connects different locations, facilitates human mobility, and transports goods. In the construction and maintenance of road infrastructure, soil plays a crucial role, so the condition and strength of the soil must be considered. Soil plays a significant role in construction as it serves as the foundation or base for building structures. Soil that has sufficient strength to support road loads will facilitate road construction. This study was conducted to determine the California Bearing Ratio (CBR) value, so that appropriate actions can be taken to construct roads based on local soil conditions. The CBR method is commonly used in soil geotechnical testing for road planning. This method involves laboratory testing of soil samples to determine the California Bearing Ratio (CBR). The results show a CBR value of 22.5%, which falls under the category of very good. This indicates that there is no need for improvement efforts in the construction of the Jl. Panglima Besar Sudirman, Dsn. Bolawen Ds. Tiron Kec. Banyakan Kab. Kediri highway, allowing resources to be allocated to other areas in need of road infrastructure improvements to enhance accessibility and overall regional development.

ANALISIS PEMENUHAN AIR BERSIH DI DAERAH CEKUNGAN AIR TANAH Rifai, Muji; Wahyudi, Agus Hari; Ywangtini, Hendriana
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.v9i1.109778

Population and economic growth have significantly increased human demand for clean water, both in terms of quantity and quality. One way to meet this growing demand is through the extraction of groundwater. This study aims to analyze the fulfilment of clean water needs in the city of Salatiga, which is located within the Rawapening and Salatiga Groundwater Basins. The study emphasizes the importance of sustainable water resource management to ensure future water availability. Using a qualitative descriptive approach, the research was conducted through literature review, field surveys, geoelectrical measurements, hydrological analysis, and the development of a water balance assessment. The results indicate that the available groundwater potential is approximately 5 m³/second, while current utilization is only around 0.069 m³/second. Analysis of domestic and non-domestic water demand reveals an increasing trend through 2028 in line with population growth. The water balance analysis shows seasonal fluctuations, with both surplus and deficit periods. A water deficit occurs during eight months (May to December), with the highest shortfall recorded in October (397 liters/second) and the lowest in May (23 liters/second). To address this shortfall, groundwater resources are proposed as an alternative solution. Given Salatiga's location within a groundwater basin, the city possesses considerable groundwater potential. This presents an opportunity for clean water provision through the development of deep wells, guided by the recommendations from geoelectrical surveys (both in terms of location and potential), to ensure optimal water yield for meeting clean water demands.

KALIBRASI DATA HUJAN SATELIT TERHADAP GROUND UNTUK ANALISIS DEBIT BANJIR DI KALI PEPE, SURAKARTA Sinaga, Alexander Reinhard; Hadiani, Rintis; S, Solichin
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.v8i2.101618

Kali Pepe yang berada di Kota Surakarta merupakan bagian dari Daerah Aliran Sungai (DAS) Bengawan Solo yang sering mengalami banjir akibat curah hujan tinggi, perubahan tata guna lahan, dan sistem drainase yang kurang optimal. Penelitian ini bertujuan untuk mengkalibrasi data hujan satelit PERSIANN terhadap data hujan lapangan (ground) untuk meningkatkan akurasi dalam analisis debit banjir periode ulang di Kali Pepe, Surakarta. Studi ini mengunakan data hujan dari 3 stasiun hujan yaitu Baki, Pabelan dan Mojolaban. Kalibrasi dilakukan menggunakan metode regresi linear dan algoritma Random Forest untuk meminimalkan bias pada data hujan satelit. Data hujan yang terkalibrasi digunakan untuk menganalisis debit banjir periode ulang dengan metode HSS Gama 1 dan HSS Limantara. Dari penelitian ini diharapkan memperoleh debit banjir periode ulang Q2, Q5, Q10, Q25, Q50, Q100, Q200, dan Q1000 dari data hujan satelit terkalibrasi dan data hujan ground. Berdasarkan hasil analisis, data hujan satelit PERSIANN yang telah dikalibrasi dengan metode HSS Gama 1 menghasilkan debit banjir Q2 sebesar 47,07 m3/detik, Q5 sebesar 51,82 m3/detik, Q10 sebesar 54,97 m3/detik, Q25 sebesar 58,94 m3/detik, Q50 sebesar 61,89 m3/detik, Q100 sebesar 64,82 m3/detik, Q200 sebesar 67,74 m3/detik, dan Q1000 sebesar 74,49 m3/detik. Dengan metode HSS Limantara, diperoleh debit banjir Q2 sebesar 26,27 m3/detik, Q5 sebesar 28,99 m3/detik, Q10 sebesar 30,79 m3/detik, Q25 sebesar 33,07 m3/detik, Q50 sebesar 34,76 m3/detik, Q100 sebesar 36,43 m3/detik, Q200 sebesar 38,10 m3/detik, dan Q1000 sebesar 41,97 m3/detik.

PERBANDINGAN BIAYA DAN WAKTU ANTARA METODE KONVENSIONAL DENGAN METODE MODULAR MENGGUNAKAN MICROSOFT PROJECT Huwaida, Nabila Yusriyya; Handayani, Fajar Sri; Rifai, Muji
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.v8i1.95314

Indonesia's construction sector is experiencing rapid growth, this proven by numerous development projects, including a sub-district building construction project, aiming to optimize community services. A project must have three aspects, namely cost, quality and time. Choosing an implementation method is very important so that a project can achieve these three goals. The research method used a quantitative descriptive approach with the aim of comparing cost and time aspects between conventional methods and modular methods. The conventional approach involves working on site using conventional building materials, while the modular approach involves the use of pre-fabricated modules. In analyzing the costs and time of construction of the Grabag Sub-district office building, Purworejo Regency, Microsoft project application was used to calculate the duration of the work. The cost analysis show that building structure work using the conventional method costs Rp.3,086,929,413.11, while the modular method costs Rp.3,646,018,620.52. So the difference in the cost of construction work is Rp.559,089,207.42 or 18.11% higher for work using the modular method. The time analysis obtained building structure work using conventional methods require 150 days while the modular method is 87 days or time efficiency of 63 days or 42% lower for work with modular methods. The results of the Time Cost Trade Off (TCTO) calculation showed that the total project cost for conventional construction was Rp.2,781,017,489 while the cost for modular construction was Rp.3,117,530,328. So a difference of Rp.336,512,839 is higher for modular construction. Therefore, conventional construction is the most economical option for the sub-district building.

PENGGUNAAN SIKACIM CONCRETE ADDITIVE TERHADAP KUAT TEKAN BETON PASIR DENGAN KANDUNGAN LUMPUR TINGGI Untari, Delia; Mahardana, Zendy Bima; Nursandah, Fauzie
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.v9i1.108348

Beton merupakan material konstruksi yang penting dalam berbagai proyek pembangunan, tetapi kualitasnya sering menurun akibat kadar lumpur tinggi pada agregat halus (pasir). Lumpur dapat menutupi permukaan pasir sehingga proses pencampuran hingga hidrasi semenmenjadi tidak sempurna. Penelitian ini bertujuan untuk menganalisis batas optimal kadar lumpur yang dapat ditoleransi dengan penggunaan SikaCim Concrete Additive (SCA) 0,75% dari berat semen pada kadar lumpur yang melebihi batas standar SK SNI S-04-1989-F. Pencampuran beton mengacu pada SNI 03-2834-2000 dengan metode eksperimen laboratorium yang menggunakanbenda uji silinder ukuran 15x 30cm.Variasi kadar lumpur pada pasiradalah 5%, 7,5%, dan 10%. Pengujian yang dilakukan meliputi workability (uji slump) serta kuat tekan beton menggunakan UTM (Universal Testing Machine). Berdasarkan hasil yang diperoleh beton dengan dosis SCA 0,75% kuat tekan meningkat sebesar 29% pada kadar lumpur 5% dan sebesar 20% pada kadar lumpur 7,5%. Sedangkan pada agregat halus dengan kadar lumpur 10% menurun menjadi 20,1 Mpa (6,5%) dari kuat tekan rencana 21,5 Mpa. Penambahan SCA 0,75% dari berat semen terbukti efektif meningkatkan workability dengan memperbaiki hidrasi semen yang terganggu akibat kadar lumpur tinggi pada pasir serta daya lekat antara agregat dan pasta semen. Batas toleransi kadar lumpur maksimal pada kuat tekan rencana adalah 9,5% yang diperoleh dari persamaan regresi linear. Dari penelitian ini penambahan bahan aditif SCA dapat menjadi solusi efektif dalam pembuatan beton di daerah yang keterbatasan sumber material berkualitas.

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Iva Yenis Septiariva

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Abstract

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Iva Yenis Septiariva

Contact Email ivayenis@staff.uns.ac.id

Phone -

Journal Mail Official jurnalsipil@ft.uns.ac.id

Editorial Address -

Location Kota surakarta, Jawa tengah INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Iva Yenis Septiariva

Contact Email
ivayenis@staff.uns.ac.id

Phone
-

Journal Mail Official
jurnalsipil@ft.uns.ac.id

Editorial Address
-

Location
Kota surakarta,

Jawa tengah

INDONESIA