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Info-Teknik
Published by Universitas Lambung Mangkurat
ISSN : 08532508     EISSN : 24599964     DOI : http://dx.doi.org/10.20527
Core Subject : Engineering,
Engineering
Jurnal Info – Teknik menerbitkan artikel – artikel karya orisinil dan signifikan pada Bidang Rekayasa Teknik.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 425 Documents
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VARIASI OPTIMUM BIOGAS DARI LIMBAH CAIR KELAPA SAWIT Budi Nining Widarti; Ditha Dwijayanti; Edhi Sarwono
INFO-TEKNIK Vol 24, No 1 (2023): INFOTEKNIK VOL. 24 NO. 1 JULI 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v24i1.14960

Abstract

Biogas is one of the renewable energy sources produced from the process of methanogenesis. This research was conducted to determine the optimal composition of palm oil liquid waste (POME) and cow rumen fluid to produce biogas and to determine the effect of the composition of the mixture on the volatile solid value, pH, temperature, biogas production, and flame testing. This study used 3 trial batch type digesters with a capacity of 40 L and the raw material was a mixture of palm oil mill effluent (POME) and cow rumen fluid with a composition of 3 : 1 (R1), 1 : 1 (R2) and 4 : 1 ( R3). During the treatment, pH, temperature, VS and biogas were tested. This research was conducted for 49 days. The research was conducted for 49 days and it was found that the composition of the mixture of palm oil mill effluent (POME) with cow rumen fluid which was optimal for producing biogas was found in R1 with a mixture composition of POME: cow rumen fluid as 3:1. R1 produces a volume of biogas of 1.86 L, from the flame test it can ignite from the third to the seventh week. The composition of the different mixed ingredients for each digester has an influence on the value of VS, pH, temperature, biogas production, and flame tests. The effect was on the difference in VS values, pH, biogas production, and flame test results for each digester, but for the temperature parameter the effect was not too visible because the temperature ranges for the three digesters were both in the mesophilic temperature range, ranging from 27°C - 32°C.
EVALUASI BANJIR RANCANGAN PADA DESAIN SPILLWAY Aditya Noor Rizqan; Holdani Kurdi; Novitasari Novitasari
INFO-TEKNIK Vol 22, No 2 (2021): INFOTEKNIK VOL. 22 NO. 2 DESEMBER 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v22i2.16858

Abstract

The design of water structures in rivers is very necessary to be able to manage rivers. Water structures, for example dams and weirs can be selected to manage watersheds. This study aims to evaluate the Tapin Dam spillway. The analytical method used is in the form of hydrological analysis and the design of the main building and spillway accessories. Hydrological analysis used with analysis of the frequency of rain data. Calculation of design flood discharge using the Melchior method. Spillway hydraulic analysis used the USBR Small Dams method. The data used is from secondary data. Data in the form of rain data at the nearest station, dam technical data and topography. The results of hydrological and hydraulics analysis calculations, based on data analysis for 15 years at the Bungur Rain Station using the Gumber method, the 100 year return period design rain is 167.56 m3/sec. The peak Q calculation using the Melchior method for a 100 year return period is 417.15 m3/s, for a Tc concentration time of 11.86 hours. Based on the above results, the second conclusion from this study is that the hydraulic analysis obtained a discharge curve after a spillway, with an elevation of 147.5 m, a flow height above the crest as high as 2.00 m with a discharge of 165.20 m3/s.
ANALISIS PRODUKTIVITAS PEKERJA DALAM PEKERJAAN PEMASANGAN BATA RINGAN PADA PROYEK PEMBANGUNAN GEDUNG SERBAGUNA POLRES DAN REHABILITASI RUANG KAPOLRES KOTA BANJARBARU Putri, Tania Ananda Tasia Hariyanto; Cahyadi, Hendra; Rachman, Tezar Aulia
INFO-TEKNIK 2023: PROSIDING SEMNAS TAHUNAN X 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v0i0.18643

Abstract

In the world of construction services, labor productivity is one of the determining factors for the success of a development project. In measuring the level of labor productivity there are various ways, one of which is by direct observation in the field by looking at the work of each worker. The purpose of this study was to determine the coefficient/index value of the workers in the brick wall laying work cycle in the Polres Multipurpose Building Development project and the Kapolres Room Rehabilitation project in Banjarbaru City and to determine the coefficient comparison of bricklaying workers in the POLRES Multipurpose Building Construction project and Spatial Rehabilitation The Banjarbaru City Police Chief when compared with the 2022 Work Unit Price Analysis (AHSP). This research was conducted by observing the productivity level of 4 light brick laying workers. From the data analysis that has been done, it can be seen that the coefficient or index of masons on the work of laying red brick walls on the construction project of the Banjarbaru Police Multipurpose Building and Kapolres Room Rehabilitation has an average of 0.064 OH. Meanwhile, the coefficient or masonry index according to Minister of Public Housing and Public Housing Regulation No. 1 of 2022 is 0.13 OH. This means that the coefficient or index value of the carpenter's data from the field is smaller in value compared to the coefficient or index in Regulation of the Minister of Public Affairs and Public Housing No. 1 of 2022. The percentage comparison of the coefficient or index of the masonry is obtained 0.066.
Geologi Untuk Mengetahui Satuan dan Sebaran Jenis Litologi Endapan Material Lepas Sungai Daerah Sungai “KLG” Afifah, Rohima Sera
INFO-TEKNIK Vol 24, No 2 (2023): INFOTEKNIK VOL. 24 NO. 2 DESEMBER 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v24i2.17741

Abstract

The Alluvium Formation of the Upper Fluvial "KLG" area is a fluvial alluvial deposit in the form of pebbles - granule of andesite and basalt grain size. The lithology unit is a Fluvial Alluvial that includes the Fluvial Plain and Fluvial Body. The diversity of grain sizes is due to the influence of the Sedimentological process. The sedimentological process begins with the rocks being and or being uplifted to the surface undergoing weathering, transport time / transport distance, resistance and crystal shape. The type of fluvial sediment material is divided into 2 (two) parts, namely: 1) the upstream part of the fluvial, generally in the form of coarse-sized alluvial deposits including the size of boulders, pebbles, granule, and sand, 2) the downstream part of the fluvial, generally in the form of finer-sized deposits. The research focused on geological studies with a lithological unit approach to the Upper Fluvial "KLG" area. The research aimed to determine the lithological unit of the Upper Fluvial "KLG" area and the distribution of grain size of unconsolidated sediment in the Upper Fluvial "KLG" of study area. The research method was carried out with 3 (three) methods, namely: a) Descriptive Method, by means of literature study, b) Survey Method, by means of factual information in the research area, with the stages of Field Observation including: Observation of geological appearances including outcrops, recording, sampling and recording field data in the Upper Fluvial "KLG", c) Analysis Methods include: Petrology and Sieve Analysis. Research results showed that The Geomorpholgy was Fluvial Alluvial plain. The Formation area was Alluvial Formation with unconsolidated sediment fluvial lithology. The grain sizes of Unconsolidated sediment were boulders, pebbles, granule and sand. Keywords: Alluvial Formation, Fluvial, Unconsolidated Sediment
PENGARUH PENGGUNAAN SPOILER PADA MOBIL BOX TERHADAP KOEFISIEN DRAG Rendi, Rendi; Firman, Muhammad; Mujiburrahman, Mujiburrahman; Irawan, Heri
INFO-TEKNIK Vol 25, No 1 (2024): INFOTEKNIK VOL. 25 NO. 1 JULI 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v25i1.15943

Abstract

This research aims to investigate the effect of spoiler usage on box trucks on the coefficient of drag. A high coefficient of drag on box trucks can result in inefficient fuel consumption and higher exhaust gas emissions. Spoilers are installed on the top of the box truck to help streamline airflow and reduce air pressure above the vehicle, thereby reducing air resistance and improving vehicle performance. Although spoilers on box trucks have been used in the logistics and transportation industry, their effect on the coefficient of drag has not been extensively studied. Therefore, this research is expected to provide information to optimize vehicle performance and reduce the negative impact of vehicles on the environment.
ANALISIS TARIKAN PERJALANAN DI KAWASAN PENDIDIKAN DI KOTA PALANGKA RAYA mia, rahelmia; Silitonga, Sutan Parasian; Riani, Desi
INFO-TEKNIK Vol 25, No 1 (2024): INFOTEKNIK VOL. 25 NO. 1 JULI 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v25i1.15721

Abstract

Di daerah kawasan pendidikan utama terpusat di Palangka Raya,hal ini menyebabkan tarikan yang signifikan di kawasan tersebut. Untuk antisipasi perkembangan lebih lanjut perlu di prediksi model tarikan nya. Menurut ketentuan dari Menteri perhubungan nomor 75 tahun 2015 yang di sebutkan bahwasanya akomodasi Pendidikan ataupun universitas yang mempunyai sedikit-dikitnya 500 siswa atau Gedung dengan 50 siswanya makan di wajibkan di berlakukannya Analisa pengaruh lalu lintas sampai di butuhkannya pemberlakuan kajian terkait tingginya tahapan perjalanan yang di tampakkan kepada sebagian sekolahan itu serta mengkonsepkan pemodelan jalanan menuju sekolah. Saat pembelajaran Gerakan model tarikan ini di jalankankan dengan memakai Analisa regresi linier ganda yang di mana di ambilnya informasi primer di dapatkannya dari survei tarikan perjalanan dan data sekunder diperoleh dari sekolah berupa data bangunan dan lantai, lahan parkiran, tempat kelas, banyak siswa, guru serta pegawai. Dari hasil studi mendapatkan infromasi pendatang yang mengarah SMAN 1 sebanyak 1415, SMAN 2 sejumlah 1198 serta SMKN 2 sampai 921 dengan waktu tertinggi kehadiran saat pada pukul 06:00 – 08:30 WIB dan saat waktu Kembali pulang dari berawal pukul 13:45 – 15:30 WIB. Dari analisa ini membuahi perolehan bahwasanya variabel bebas yang memberi dampak kepada tarikan jalanan dengan variabel bebas yang mempengaruhi kepada tarikan perjalanan dengan variabel jumlah ruang kelas (X2) dan jenis tarikan perjalanan di dapatkannya yakni Y = 152,05 + 0,45X1 + 34,31X2 – 0,43X3 (r = 0,93). Jenis modelan seperti ini bisa di pergunakan agar terprediksinya banyak taarikan yang akan bisa di Tarik ke sekolahan baru, seraya memakai pendekatan yaitu luas sekolahan.
Penyiapan Kompetensi BIM Terhadap SDM Bidang Konstruksi Pada Pembangunan Infrastruktur IKN Tjitradi, Darmansyah
INFO-TEKNIK 2023: PROSIDING SEMNAS TAHUNAN X 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v0i0.18639

Abstract

Building Information Modeling (BIM) adalah cara kerja kolaboratif yang didukung oleh teknologi digital. Teknologi ini memungkinkan metode yang lebih efisien dalam merancang, mengirimkan, dan memelihara aset yang dibangun secara fisik di seluruh siklusnya.
ANALISIS TARIF BUS DAMRI TRAYEK PALANGKA RAYA – TALAKEN DENGAN METODE KEMENTERIAN PERHUBUNGAN Steven, Steven; Robby, Robby; Silitonga, Sutan Parasian
INFO-TEKNIK Vol 24, No 2 (2023): INFOTEKNIK VOL. 24 NO. 2 DESEMBER 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v24i2.14835

Abstract

Kalimantan Tengah sebagai salah satu provinsi di Indonesia yang sistem transportasinya sudah menggunakan angkutan umum sebagai salah satu sarana transportasi antar daerah, salah satunya adalah angkutan umum bus Damri trayek Palangka Raya – Talaken. Kondisi perkerasan jalan Palangka Raya – Talaken sepanjang kurang lebih 135 km saat ini cukup baik. Tarif yang berlaku untuk bus Damri trayek Palangka Raya – Talaken sebesar Rp. 60.000,-. Tarif yang diberlakukan pada setiap transportasi publik harus ditentukan dengan bijak agar memberikan hasil yang dapat diterima oleh masyarakat dan perusahaan penyedia transportasi sehingga diperlukan analisis pada tarif yang berlaku saat ini. Salah satu cara penentuan tarif suatu kendaraan adalah dengan melihat biaya operasional yang dikeluarkan pada jenis kendaraan tersebut. Pada penelitian ini analisis BOK dihitung menggunakan metode Kementerian Perhubungan. Hasil analisis BOK metode Kementerian Perhubungan didapatkan nilai BOK sebesar Rp. 8.123,455 / km dengan nilai tarif Rp. 59.425,2747. Berdasarkan hasil yang didapatkan tersebut maka tarif bus Damri trayek Palangka Raya – Talaken yang berlaku saat ini masih dapat direkomendasikan.
IDENTIFIKASI FAKTOR PENYEBAB WASTE KONSTRUKSI DENGAN MENGGUNAKAN PENDEKATAN LEAN CONSTRUCTION (STUDI KASUS: PROYEK X KABUPATEN KAPUAS) Maulana, Doni Rahman
INFO-TEKNIK Vol 25, No 1 (2024): INFOTEKNIK VOL. 25 NO. 1 JULI 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v25i1.16187

Abstract

Waste is a problem that often occurs in construction projects. Waste is an activity that utilizes resources but does not produce the expected added value. Waste can be eliminated with a lean approach where this approach is carried out by identifying and eliminating waste so that it can meet customer value. Therefore, it is necessary to identify waste, in this study to identify the factors causing the occurrence of construction waste in the rehabilitation and improvement of irrigation networks in the working area of block A, Kapuas Regency. There were 9 variables with 43 indicators of factors causing waste which became the basis for this research. The method used was the Borda method to get the factors causing the most frequent waste and also the severity index method to get the main factors causing the occurrence of waste. The results of this study are the waste that most often occurs, namely the planning error factor with a weight value of 0.031 and the main factor for the occurrence of waste, namely the planning error factor with an SI probability weight of 46.7% including category C (Enough) with a value of 3 while the SI impact weight is 65% belongs to category B (Large) with a value of 4
PENGARUH TANAH EXISTING TERHADAP NILAI KUAT TEKAN BEBAS (UCS) PADA PERKERASAN LENTUR TIPE CEMENT TREATED’RECYCLING BASE (CTRB) Suratno, Suratno; Radam, Iphan Fitrian; Yasruddin, Yasruddin
INFO-TEKNIK 2023: PROSIDING SEMNAS TAHUNAN X 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v0i0.18644

Abstract

One alternative to repair damage to old road pavements is with recycling technology or recycling (CTRB) where Issues with the Mixed in Place procedure include mixing with pre-existing soil material, which should not be mixed during implementation as it will impact the Unconfined Compressive Strength (UCS) values. The Conch brand is less expensive as a binder than local cement from South Kalimantan since production expenses are lower.This study aims to determine the typical influence of existing soil on UCS, what percentage of existing soil material can still be tolerated either curing or non-curing, and correlation. It also aims to obtain recommendations for the maximum percentage of influence of percent of existing land on UCS in curing or non-curing. Finally, it aims to obtain UCS Results at minimal cement levels that still meet the requirements with the use of brand local cement. RAM samples were obtained for the purpose of investigation, which was done in a lab, existing soil and additional materials in the field. Inspection of old aggregates, making test specimens with variations in cement content of 1-10%, after obtaining minimum UCS according to technical requirements then making test specimens with variations in soil examinations and content UCS’ of 0%, 5%, 10%, 15%, 20%, and 25% again then conducting data analysis to find correlations / relationships. The results of the research showed variances in cement content of 1% (one) - 10% that still meet the technical specifications of UCS (at least 30 kg/cm²) obtained a minimum cement’ content of 5% (five percent) with a UCS of 33,77 kg/cm². Then the test results of the influence of existing soil on UCS that is still tolerated are mixed, namely in curing conditions is 17% with the equation Y = - 0.10075 x + 46.894 (R2 = 0,964). and non curing 8,9% with the equation Y = - 0,1113 x + 39,814(R2=0,956). The R2 conclusions for both indicate a very There is a substantial correlation between the two factors.

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