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Ground Surface Quality Assessment Using P-wave Velocity from 2-D Seismic Refraction Method Zul Fadhli; Sabrian Tri Anda; Muhammad Syukri; Moehammad Ediyan Raza Karmel; Alfi Sunny Tutifla; Purwandy Hasibuan; Rini Safitri
Aceh International Journal of Science and Technology Vol 11, No 3 (2022): December 2022
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (626.823 KB) | DOI: 10.13170/aijst.11.3.28818

Abstract

A good strength level of the ground surface is the main concern in an area with rapid housing infrastructure development, such as Baitussalam district-Aceh Besar, Indonesia. A seismic refraction method was applied with three similar profile lines using PASI 16S – 24P equipment and 10 Hz vertical geophones to identify the sub-surface layer. The result was processed using Winsism software and Surfer 8. The results of seismic refraction were deduced and correlated with conventional geotechnical investigation obtained by a previous study. The results of 3 survey lines show that the area has two main layers. The first layer was interpreted as overburden (soil and clayey sand) with a compressional wave velocity (Vp) value of fewer than 1.8 km/s. The second layer produces a high velocity of more than 2 km/s. This second layer is interpreted as highly to moderately weathered rock. The results of seismic refraction surveys of the present study suggest a reasonably good correlation with the standard penetration test (SPT) and rock quality designation (RQD) obtained in the previous investigation. The strength level of the second layer showed  N-SPT of 65 and RQD of at least 50%.
Aplikasi Metode Vertical Electrical Sounding untuk Pendugaan Kedalaman dan Ketebalan Lapisan Akuifer di Kota Langsa Sabrian Tri Anda; Nanda Firmanda; Zul Fadhli; Muhammad Syukri
TERAS JURNAL Vol 13, No 1 (2023): Volume 13 No 1, Maret 2023
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v13i1.819

Abstract

Abstrak Penyediaan sumber baku air bersih masih menjadi sebuah masalah utama yang dihadapi oleh pihak Perusahaan Air Minum Daerah (PDAM) Tirta Keumuneng Kota Langsa. Oleh sebab itu dilakukan sebuah studi sebagai acuan alternatif dalam penyediaan sumber baku air bersih di Kota Langsa berupa air tanah (groundwater). Studi dilakukan dengan menggunakan metode Vertical Electrical Sounding (VES) untuk menentukan potensi air tanah yang ditandai dengan keberadaan lapisan akuifer. Metode ini dilakukan dengan menginjeksi arus ke bawah permukaan bumi sehingga parameter fisis berupa nilai resistivitas dapat diketahui, untuk pendugaan awal lapisan akuifer guna pengidentifikasian potensi sumber baku air bersih berupa air tanah. Pengukuran data lapangan dilakukan di beberapa titik yang tersebar di wilayah Kota Langsa. Dari hasil pengukuran lapangan, diketahui bahwa Kota Langsa memiliki potensi keberadaan air tanah yang ditandai dengan adanya lapisan akuifer diduga berada pada kedalaman 43 – 105 m di bawah permukaan dengan rentang nilai resistivitas sebesar 31 – 45 Ωm. Kata kunci: groundwater, akuifer, vertical electrical sounding, resistivitas  Abstract The provision of a raw source of clean water is still a significant problem faced by the Local Water Company in Langsa City therefore, a study was carried out as an alternative in order to provide raw source of clean water in Langsa City by exploring the existence of groundwater. The study was conducted using the Vertical Electrical Sounding (VES) method to determine the groundwater potential which is indicated by the presence of aquifer layers. The method is applied by injecting the electrical currents beneath the surface to calculate the physical parameters (resistivity) as the initial stage to estimate the aquifer layers in order to identify potential sources of groundwater. Field data measurements were carried out at several points across the Langsa City area. Based on the result, it was found that presence of groundwater exists in the study area, indicated by the presence of aquifer layer at depth of 43 – 105 m beneath the surface with resistivity value of 31 – 45 Ωm. Keywords: groundwater, aquifer, vertical electrical sounding, resistivity
Peningkatan PENINGKATAN PRODUKSI USAHA TERASI AWAINA DI KOTA LANGSA MENGGUNAKAN TEKNOLOGI SCREW PRESS MACHINE SEBAGAI PENCETAK TERASI Fajriani Fajriani; Haikal Fajri; Nirmala Sari; Sabrian Tri Anda; T. Andi Fadly; Ida Ratna Nila
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol. 8 No. 2 (2023): JURNAL ABDI : Media Pengabdian Kepada masyarakat
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/abdi.v8i2.19193

Abstract

One of the household businesses in the field of shrimp paste processing located in Gampong Simpang Lhee, West Langsa District, Langsa City is terasi awaina. From the observations that have been made, the process of printing shrimp paste is still carried out conventionally using hands, so the process of printing shrimp paste takes a long time and produces a paste print that is not uniform in size, therefore the PKM team offers an appropriate technology in the form of a screw press machine as a paste printer. The method of this community service activity is carried out by providingn information and solutions about the products offered, as well asstrengthening the screw press machine design needed by partners, then conducting training on how to operate and maintain the screw press machine , then the latter performs mentoring during and after the program. From the results of the evaluation that has been carried out by the PKM team, it is certain that the business of terasi awaina gampong simpang lhee has been skilled in using screw press machines, it is hoped that with the screw press machine, the production of awaina paste will increase.
Ground Surface Quality Assessment Using P-wave Velocity from 2-D Seismic Refraction Method Zul Fadhli; Sabrian Tri Anda; Muhammad Syukri; Moehammad Ediyan Raza Karmel; Alfi Sunny Tutifla; Purwandy Hasibuan; Rini Safitri
Aceh International Journal of Science and Technology Vol 11, No 3 (2022): December 2022
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.11.3.28818

Abstract

A good strength level of the ground surface is the main concern in an area with rapid housing infrastructure development, such as Baitussalam district-Aceh Besar, Indonesia. A seismic refraction method was applied with three similar profile lines using PASI 16S – 24P equipment and 10 Hz vertical geophones to identify the sub-surface layer. The result was processed using Winsism software and Surfer 8. The results of seismic refraction were deduced and correlated with conventional geotechnical investigation obtained by a previous study. The results of 3 survey lines show that the area has two main layers. The first layer was interpreted as overburden (soil and clayey sand) with a compressional wave velocity (Vp) value of fewer than 1.8 km/s. The second layer produces a high velocity of more than 2 km/s. This second layer is interpreted as highly to moderately weathered rock. The results of seismic refraction surveys of the present study suggest a reasonably good correlation with the standard penetration test (SPT) and rock quality designation (RQD) obtained in the previous investigation. The strength level of the second layer showed  N-SPT of 65 and RQD of at least 50%.
PENERAPAN ALAT PENGERING UNTUK MENINGKATKAN PRODUKSI USAHA TERASI AWAINA KOTA LANGSA ACEH Teuku Andi Fadlly; Nirmala Sari; Rachmad Almi Putra; Fajriani Fajriani; Ida Ratna Nila; Sabrian Tri Anda; Fitriani Fitriani
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol. 9 No. 1 (2023): JURNAL ABDI : Media Pengabdian Kepada masyarakat
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/abdi.v9i1.19461

Abstract

This Community Service (PKM) provides solutions and innovations regarding the Application of Dryer Equipment to Increase the Production of Awaina Terasi Business in Langsa City, Aceh. The activity was carried out with the target of this program being the Gampong Light Terasi Business group, one of which was the Awaina Terasi Business and community groups. The main problem faced by partners is the absence of an effective, practical, and inexpensive dryer for shrimp paste during the rainy season so that production is stopped. Activities carried out for partners during service are making and training in the use of dryers for shrimp paste. The results of this activity increase the knowledge of partners and local community groups which are the Gampong Light Terasi Business group in making shrimp paste dryers that are portable, low production costs, and easy to maintain. The shrimp paste dryer will increase the production of community entrepreneurs.