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Pendugaan Aliran Sungai Bawah Tanah Dalam Pemenuhan Kebutuhan Air Masyarakat Desa Hargosari Gunungkidul Berdasarkan Data VLF-EM Terkoreksi Topografi Faizal, Rahmat; Sismanto, Sismanto; Handayani, Rosmalia; Asta, Asta
Borneo Engineering : Jurnal Teknik Sipil Volume 1, Nomor 2, Desember 2017
Publisher : Jurusan Teknik Sipil

Wilayah Hargosari terletak di daerah karst Gunungsewu yang dikenal sebagai daerah subur dan kurang air terutama selama musim kemarau. Secara geologis, tersusun oleh batu gamping yang berpotensi menyebabkan sungai bawah tanah sebagai akibat dari proses pelarutan. Metode VLF-EM digunakan untuk mengetahui pola sungai bawah tanah terkait dengan kontras parameter fisik konduktif yang disebabkan oleh keberadaan air di lubang batugamping. Tujuan dari penelitian ini adalah untuk menentukan jejak dan pola sungai bawah tanah Bribin serta pemodelannya menggunakan perangkat lunak lnv2DVLF. Interpretasi kualitatif dilakukan berdasarkan pada pengolahan data yang telah dikoreksi topografi menggunakan filter moving average dan filter Karous-Hjelt, sedangkan interpretasi kuantitatif menggunakan program lnv2DVLF dan divisualisasikan menggunakan Surfer 12. Berdasarkan interpretasi kualitatif dan kuantitatif, dapat disimpulkan bahwa sungai bawah tanah Bribin mengalir dari arah timur ke barat melalui wilayah Hargosari, dan terdiri dari dua aliran sungai bawah tanah yang saling berhubungan. Lebar area konduktif adalah (25 ± 5) m pada kisaran kedalaman sekitar 148-184 m.

Analisis Kebutuhan Air Bersih Dan Distribusi Jaringan PDAM Persemaian Kota Tarakan (Studi Kasus Kecamatan Tarakan Barat) Asta, Asta
Borneo Engineering : Jurnal Teknik Sipil Volume 2, Nomor 1, Juni 2018
Publisher : Jurusan Teknik Sipil

As the population growth in absorb area, there is a significant increase over the function of land water absorb for the needs of investment in a large scale to reduce the absorbing drought during the dry season which able the availability of water sources PDAM especially PDAM at Persemaian in Tarakan City. The analysis method and processing of data in this research was used analysis descriptive, where the data was separated from the number either primary data namely the collection of data from survey in the field and secondary data was the supporting data which was obtained from the relevant institution like BPS and PDAM of Tarakan City then those were separated based on the data characteristic. The data analysis consists of: 1). calculation project of clean water needs at PDAM persemaian in Tarakan City until 2026. 2). The analysis of pipeline distribution network PDAM at Persemaian in Tarakan City by using the program Epanet 2.0. From the calculation of the total population in 2026 was 127.183 soul, and ba sed on the calculation of the average water needs in 2026 was 191,9216 ltr/sec, the maximum needs was 220,7099 lte/sec, so it obtained the needs of clean water until 2026 at the top of 335,8629 ltr/sec. Based on the calculation using epanet 2.0 obtained th e highest pressure score was 9,39 atm (kg/cm 2 ) in junction 131 along 93,96 m and the lowest pressure was 1,10 atm (kg/cm 2 ) in junction 228 along 11,04 m, mean while the highest score of head was 110,83 m in junction 1 and the lowest score of head was 37,00 m in junction 225. Therefore, in 2026 based on the condition of existing pipelines distribution network now, they still can be used in the research location.

Penentuan Batas DAS Tojo Berbasis GIS Menggunakan Perangkat HEC HMS 4.4 dan QGIS 3.16 Aswar Amiruddin; Asta Asta; Rosmalia Handayani
Borneo Engineering : Jurnal Teknik Sipil Volume 5 Nomor 3 Tahun 2021
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v5i3.2223

Watershed delineation is the process of determining an area that contributes to the flow of rainfall (precipitation) into runoff to the outlet. The watershed delineation analysis in this study used the HEC-HMS version 4.4 and QGIS 3.16 . HEC HMS version 4.4 has GIS tools that have been directly integrated to facilitate the watershed delineation process. The study area in this research is the Tojo watershed which is located in Central Sulawesi Province. The digital elevation model (DEM) data source used is DEMNAS BIG with a spatial resolution is 8,1 meters. The results of watershed delineation using HEC-HMS 4.4 software are the same as the results of watershed delineation using QGIS 3.16 software. There is a slight difference in the watershed boundary in some parts when zoomed in. The watershed area produced by each GIS Softwares are HEC-HMS 212,583 km2, QGIS 212,5404 km2. The HEC-HMS 4.4 software gives quite good results on the boundary analysis of the Tojo watershed, so the HEC-HMS 4.4 software can also be used in other researches in the field of water resources.

Pendugaan Aliran Sungai Bawah Tanah Dalam Pemenuhan Kebutuhan Air Masyarakat Desa Hargosari Gunungkidul Berdasarkan Data VLF-EM Terkoreksi Topografi Rahmat Faizal; Sismanto Sismanto; Rosmalia Handayani; Asta Asta
Borneo Engineering : Jurnal Teknik Sipil Volume 1 Nomor 2 Tahun 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v1i2.601

Wilayah Hargosari terletak di daerah karst Gunungsewu yang dikenal sebagai daerah subur dan kurang air terutama selama musim kemarau. Secara geologis, tersusun oleh batu gamping yang berpotensi menyebabkan sungai bawah tanah sebagai akibat dari proses pelarutan. Metode VLF-EM digunakan untuk mengetahui pola sungai bawah tanah terkait dengan kontras parameter fisik konduktif yang disebabkan oleh keberadaan air di lubang batugamping. Tujuan dari penelitian ini adalah untuk menentukan jejak dan pola sungai bawah tanah Bribin serta pemodelannya menggunakan perangkat lunak lnv2DVLF. Interpretasi kualitatif dilakukan berdasarkan pada pengolahan data yang telah dikoreksi topografi menggunakan filter moving average dan filter Karous-Hjelt, sedangkan interpretasi kuantitatif menggunakan program lnv2DVLF dan divisualisasikan menggunakan Surfer 12. Berdasarkan interpretasi kualitatif dan kuantitatif, dapat disimpulkan bahwa sungai bawah tanah Bribin mengalir dari arah timur ke barat melalui wilayah Hargosari, dan terdiri dari dua aliran sungai bawah tanah yang saling berhubungan. Lebar area konduktif adalah (25 ± 5) m pada kisaran kedalaman sekitar 148-184 m.

Estimasi Debit Puncak Menggunakan Hidrograf Satuan Sintetik Pada Daerah Aliran Sungai Kayan Kabupaten Bulungan Asta Asta; Nurjaya Nurjaya
Borneo Engineering : Jurnal Teknik Sipil Volume 3 Nomor 2 Tahun 2019
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v3i2.1173

The Kayan Watershed in Bulungan Regency is the largest river in North Kalimantan which has the potential for flooding in several irrigated points. Kayan River is a flood-prone area and prioritized to be handled immediately because there is already a smooth life for the community. Potentially need to know the great potential of flooding in the Kayan River. To find out the relationship between flood discharge and flood time, the Synthetic Unit Hydrograph calculation method is used. The aim is to determine the shape and results of peak discharge in Synthetic Unit Hydrograph Y (SUH). This study uses a debit calculation in the Kayan watershed using Snyder HSS a nd Nakayasu HSS. From the calculation results obtained Snyder SUH peak discharge of 118.0 m3/ sec at 73.85 hours, and Nakayasu SUH has a peak discharge of 109.35 m3 / sec at 54.09 hours.

Analisis Kebutuhan Air Bersih Dan Distribusi Jaringan PDAM Persemaian Kota Tarakan (Studi Kasus Kecamatan Tarakan Barat) Asta Asta
Borneo Engineering : Jurnal Teknik Sipil Volume 2 Nomor 1 Tahun 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v2i1.613

As the population growth in absorb area, there is a significant increase over the function of land water absorb for the needs of investment in a large scale to reduce the absorbing drought during the dry season which able the availability of water sources PDAM especially PDAM at Persemaian in Tarakan City. The analysis method and processing of data in this research was used analysis descriptive, where the data was separated from the number either primary data namely the collection of data from survey in the field and secondary data was the supporting data which was obtained from the relevant institution like BPS and PDAM of Tarakan City then those were separated based on the data characteristic. The data analysis consists of: 1). calculation project of clean water needs at PDAM persemaian in Tarakan City until 2026. 2). The analysis of pipeline distribution network PDAM at Persemaian in Tarakan City by using the program Epanet 2.0. From the calculation of the total population in 2026 was 127.183 soul, and ba sed on the calculation of the average water needs in 2026 was 191,9216 ltr/sec, the maximum needs was 220,7099 lte/sec, so it obtained the needs of clean water until 2026 at the top of 335,8629 ltr/sec. Based on the calculation using epanet 2.0 obtained th e highest pressure score was 9,39 atm (kg/cm 2 ) in junction 131 along 93,96 m and the lowest pressure was 1,10 atm (kg/cm 2 ) in junction 228 along 11,04 m, mean while the highest score of head was 110,83 m in junction 1 and the lowest score of head was 37,00 m in junction 225. Therefore, in 2026 based on the condition of existing pipelines distribution network now, they still can be used in the research location.

Studi Sistem Drainase Resapan di Wilayah Karang Anyar Kota Tarakan Asta Asta; Rosmalia Handayani
Borneo Engineering : Jurnal Teknik Sipil Volume 1 Nomor 2 Tahun 2017
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v1i2.602

Tarakan City is one city that is often flooded during the rainy season it is in because of the narrow drainage system and due to the accumulation of garbage other than one of the factors that affect flooding is tidal. For the central Tarakan Region, specifically in the region of Karang Anyar Central Tarakan that is Seroja , Kenanga and mawar street flood that occurred due to the drainage system which is not good. And population growth is rapidly increasing and the growth of residential construction and industry as well as other supporting facilities are not balanced with the development of the drainage system. Increase the number of discharges that come out due to the increase of housing and other buildings are often already do not meet the capacity of its maximum capacity on existing drainage channels. The research is conducted by doing a survey in the field to obtain primary data and secondary data which will then be processed using the method ISO No. 03- 2459-2002 about general and technical requirments infiltration wells, this standard is a revision of ISO No. 03-3459-2991. The result of the field trial showed that the infiltration rate as measured by the single ring infiltrometeron seroja street at 6cm/hour, on kenanga street by 6 cm/hour, and mawar street by 9cm/hour. Each infiltration wells are planned at each house is capable of reducing flood discharge as much as 0.00254m3/sec at seroja street, kenanga street 0.00282 m3/sec and 0.0034m3/sec on mawar street. Under the assumption 70 % of homes in the study area using infiltration wells.

LOW COST INVERTER SEBAGAI SOLUSI PENERANGAN RUMAH HUNI PADA DAERAH PERBATASAN DI KECAMATAN SEBUKU KABUPATEN NUNUKAN Abdul Muis Prasetia; Daud Nawir; Asta Asta; Rosmalia Handayani; Al Ma'ruf
Jurnal Pengabdian Masyarakat Borneo Vol 3, No 2 (2019)
Publisher : Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/jpmb.v3i2.1185

Kebutuhan dan permintaan masyarakat terhadap energi listrik sebagai penunjang untuk meningkatkan potensi dan daya tarik Sebuku sangat tinggi, sehingga terjadi krisis pasokan listrik dan sering dilakukan pemadaman listrik. Selama pemadaman listrik banyak aktivitas masyarakat Sebuku menjadi terhambat. Ketika terjadi pemadaman listrik di malam hari atau tidak adanya cahaya penerangan membuat pelajar menjadi sulit untuk mengerjakan pekerjaan rumahnya. Pedagang kaki lima mengalami hambatan dikarenakan susah dalam melakukan aktivitas, produksi dan kunjungan pelanggan ke toko menurun. Masyarakat biasanya menggunakan lilin sebagai pengganti alternatif lampu ketika terjadi pemadaman listrik. Namun, penggunaan lilin sangat beresiko mengakibatkan terjadinya kebakaran. Untuk itu kami memberikan sentuhan teknologi berupa pembuatan low cost inverter yang dapat dimanfaatkan sebagai mini inverter untuk menyalakan lampu sebagai solusi penerangan rumah huni saat terjadi pemadaman listrik. Low cost inverter dapat digunakan untuk menyalakan lampu atau alat elektronik lainnya dengan hanya menggunakan sumber baterai yang mempunyai tegangan 3.5 Volt. Hasil pelaksanaan kegiatan pembuatan alat pada daerah perbatasan menunjukkan dengan adanya low cost inverter masyarakat Sebuku sangat terbantu dalam bidang penerangan. Masyarakat mempunyai alat penerangan yang aman, sehingga tidak menimbulkan rasa khawatir terhadap bahaya kebakaran. Masyarakat dapat menjalankan aktivitas sehari-hari tanpa terganggu dengan pemadaman listrik.

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