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UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology
Published by Universitas Muslim Indonesia
ISSN : 25974815     EISSN : 27986500     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Transportation
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology is an international language national journal that publishes the best peer-reviewed research in all fields of science and technology based on originality, importance, interdisciplinary interest, timeliness, accessibility, elegance and surprising conclusions. UNDERPASS provides fast, authoritative, insightful and engaging news and interpretations and interpretations of topical and upcoming trends that will impact science, scientists and society at large. UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology is an electronic journal (e-ISSN) in 2021 which is an improvement change from the flyover journal which previously used the Print ISSN (p-ISSN) starting in 2017.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 68 Documents
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EVALUATION OF CASH FLOW CONTROL USING UM METHOD 30% BCWS – BCWP CONDITIONS IN THE AMBON FISHERY pier PROJECT hanafi ashad; abd karim hadi; Irmawaty
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 5 No 2 (2021): Underpass Journal of Civil Engineering, Applied sciences, and Technology
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

Berkaitan dengan pembangunan dermaga, ketersediaan modal kerja dari perusahaan akan memperlancar pekerjaan dimana kontraktor dapat terus bekerja tanpa harus menunggu dana dari pemilik atau mengadakan pinjaman dari bank sehingga memperlancar pelaksanaan pekerjaan sehingga dapat terpenuhi target jadwal waktu kerja. Penelitian ini bertujuan untuk mengetahui Metode Pengendalian Cashflow yang tepat sehingga Saldo Kas Akhir Pembangunan Proyek Dermaga Perikanan di Ambon tetap mengalami surplus.Metode Evaluasi Pengendalian Cashflow yang dilakukan dengan cara Analisis Cash Out, Cash In dan cashflowdengan UM 30 % pada Kurva BCWS, Cash Out, Cash In dan Cashflow dengan UM 30 % pada Kurva BCWP dan Analisis Evaluasi Pengendalian Cashflow pada Kondisi BCWP. Dengan menganalisa sistem pengendalian Cashflow pada proyek perikanan di Ambon, tindakan yang diambil agar kondisi kas akhir tetap pada posisi Surplus adalah Biaya Tidak Langsung dibayarkan dengan cara Kredit sebesar 50 % mulai dari Minggu ke -1 s/d Minggu ke-26, dan pembayaran cash dilakukan pada minggu ke – 27.Selain itu melakukan pinjaman lunak (bisa berupa pinjaman tidak berbunga) senilai Rp. 200.000.000,- yang dilakukan dengan 2 tahap, yaitu pada minggu ke -17 senilai Rp. 100.000.000 dan minggu ke -25 senilai Rp. 100.000.000. hasil penelitian menunjukkan bahwa (1) Biaya Tidak Langsung dibayarkan dengan cara Kredit sebesar 50 % mulai dari Minggu ke -1 s/d Minggu ke-26, dan pembayaran cash dilakukan di minggu ke – 27. Dan (2) Melakukan pinjaman Lunak (bisa berupa pinjaman tidak berbunga) senilai Rp. 200.000.000,- yang dilakukan dengan 2 tahap, yaitu pada minggu ke -17 senilai Rp. 100.000.000 dan minggu ke -25 senilai Rp. 100.000.000
ANALYSIS OF THE CHARACTERISTICS OF MOTOR VEHICLE TRAFFIC FLOW ON ROAD LANTO BANTAENG DISTRICT Maryam H; Lambang Basri Said; Rakhmat Kurnia
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 5 No 2 (2021): Underpass Journal of Civil Engineering, Applied sciences, and Technology
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

Ruas Jalan Raya Lanto melayani aktifitas arus lalu lintas yaitu lalu lintas regional dan lalu lintas lokal dengan berbagai jenis kendaraan, seperti kendaraan berat (dump truk, truk tangki, truk gandeng, semi trailer, bus), kendaraan ringan (sedan, minibus, pick up, jeep,angkutan kota), sepeda motor dan kendaraan tidak bermotor. Dalam menentukan karakteristik lalulintas pada ruas Jalan Raya Lanto Kabupaten Bantaeng dapat digunakan beberapa populasi variabel utama, yaitu volume, kecepatan, kapasitas, dan karakteristik lalulintas yang terdiri atas beberapa hal, yaitu geometrik jalan, komposisi arus dan pengaturan lalulintas termasuk batas kecepatan kendaran, hambatan samping serta perilaku pengemudi dan populasi kendaraan. Penelitian ini bertujuan: (1). Menganalisis karakteristik lalu lintas di ruas Jalan Raya Lanto Bantaeng untuk kategori kota kecil dengan penjabaran kedalam hubungan flow, Speed dan Density dengan model Greenshield dan model Underwood. (2). Mengetahui penyesuaian yang harus dilakukan pada hasil hitungan MKJI-1997 untuk kota kecil dengan menganalisis karakteristik lalu-lintasnya. Pengambilan data penelitian dilakukan untuk semua jenis kendaraan yang melewati di ruas jalan Raya Lanto Bantaeng dengan periode waktu pengamatan 15 menitan dan melalui beberapa tahapan perhitungan diperoleh data volume (flow), data kecepatan rata-rata ruang (space mean speed) dan data kerapatan (density). Berdasarkan tinjauan kecepatan dan kerapatan optimum, model Greenshields dan model Underwood relatif cocok menggarnbarkan karakteristik ruas jalan Raya Lanto Bantaeng termasuk kategori kota sedang sesuai penjabaran hubungan flow, speed, density.
BUSWAY PUBLIC TRANSPORT SERVICE LEVEL STUDY MAKASSAR CITY Maryam H; Lambang Basri Said
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 5 No 2 (2021): Underpass Journal of Civil Engineering, Applied sciences, and Technology
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

Daerah perkotaan adalah suatu sistim jaringan kehidupan manusia dengan kepadatan penduduk yang tinggi, strata sosial ekonomi yang heterogen dan corak kehidupan materialistik. Perkembangan suatu kota di pengaruhi oleh pertumbuhan penduduknya beserta aktifitas yang berlangsung didalamnya. Kota juga mempuyai fungsi kawasan, seperti fungsi pelayanan sosial, kawasan pemukiman kota, kegiatan perekonomian, ataupun sebagai pusat pemerintahan. Hal ini merupakan faktor yang mengakibatkan pertumbuhan berkembang dengan pesat.Mengetahui pengaruh kualitas pelayanan terhadap tingkat kepuasan masyarakat pengguna jasa layanan busway di kota Makassar.Mengajukan suatu rekomendasi perbaikan pelayanan busway untuk pelayanan yang diberikan kepada penumpangnya. Menganalisis tingkat pelayanan operator Busway berdasarkan persepsi penumpangnya.Skor Servqual : Skor Persepsi – Skor Harapan.....(1)Pengukuran hasil survei dapat dilakukan dengan membandingkan anatara rata-rata harapan dengan persepsi dan tiap butir instrumen. Dengan demikian akan didapatkan Gap / kesenjangan, yaitu selisih kenyataan dan harapan. Hasil > - 1 (ex: -0, 40) berarti baik; dan hasil <-1 (ex: -1, 20) berarti kurang baik. Pada prinsipnya data yang diperoleh melalui instrumen Servqual dapat dipergunakan untuk menghitung skor gap kualitas jasa pada level secara rinci:a.item-by-item analisys,misal P1 – H1, P2 – H2, dst.b.Dimensi-by-dimensionalisys,contoh: (P1 + P2 + P3 + P4 / 4) – (H1 + H2 + H3 + H4 / 4) dimana P1 sampai P4 dan H1 sampai H4 mencerminkan 4 pernyataan persepsi dan harapan berkaitan dengan dimensi tertentu.c.Perhitungan ukuran tunggal kualitas jasa / Gap Servqual yaitu (P1 + P2 + P3...+ P22 / 22)–( H1+H2 + H3 +....+ H22 / 22)d.Untuk menganalisis kualitas akan jasa pelayanan yang telah diberikan,makadigunakan rumus(Total QualityManagement,DaleH.Besterfield,ThirdEdition,2003)Kualitas(Q)=.......(2)Jika kualitas (Q) = 1, maka kualitas pelayanan dikatakan baik.
DEGRADASI MEKANIK BETON AKIBAT INTRUSI AIR LAUT hanafi ashad; Fauzan Hamdi
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 6 No 1 (2022): Underpass Journal of Civil Engineering, Applied sciences, and Technology
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

The problem that occurs in concrete buildings in the coastal environment is that concrete damage occurs due to degradation of concrete intruded by sea water. Damage to concrete due to seawater, consists of 3 (three) parts, namely: the part of the concrete that is submerged in sea water (sub-meged), the part of the concrete that is exposed to sea tides and the part of the concrete that is exposed to splashes of sea water. The damage to concrete discussed in this study is the mechanical degradation of concrete due to seawater intrusion on the part submerged in seawater. Damage can occur to concrete due to the reaction between aggressive seawater which has intruded into the concrete with compounds in the concrete which causes the concrete to lose some of its mass, lose its strength and stiffness and accelerate the weathering process. The results of this study indicate that the reduction in compressive strength of concrete due to seawater intrusion tends to show a logarithmic graph. In this case, the compressive strength of normal concrete will lose 50% when the concrete is immersed in sea water for 19,031 days. Normal quality concrete f'c = 25 MPa experienced mechanical degradation due to seawater intrusion, in this case the compressive strength of concrete was 12.063% when soaked for 28 days and 16.809% when soaked for 90 days.
KETAHANAN BETON TERHADAP SERANGAN ASAM SULFAT DENGAN BAHAN TAMBAH SILICA FUME hanafi ashad; Andris Amir
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 6 No 1 (2022): Underpass Journal of Civil Engineering, Applied sciences, and Technology
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

This study aims to examine the degree of damage and the effect of concrete quality on sulfuric acid attack with silica fume added to the compressive strength of concrete with a design concrete quality of 25 MPa and 40 MPa, then formulate the relationship between compressive strength of concrete and good age of concrete at normal concrete and concrete with silica fume. The results showed that concrete without using silica fume was very susceptible to attack by sulfuric acid. The use of the mineral additive silica fume is able to minimize weight reduction and reduction in compressive strength of concrete due to attack by sulfuric acid with a usage percentage of between 13% and 15%.
MANAJEMEN RESIKO PADA PELAKSANAAN PROYEK KONSTRUKSI abd karim hadi; Elka Buhaemi
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 6 No 1 (2022): Underpass Journal of Civil Engineering, Applied sciences, and Technology
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

Risk management is a method that is arranged logically and systematically from a series of activities: setting the context, identifying, analyzing, evaluating, controlling and communicating risks. The concept of risk management was introduced in the field of occupational safety and health in the 1980s after the development of the accident model theory from ILCI and also the rise of environmental and health issues. expected hazard that is a threat to the property and financial gain resulting from the hazard. Risk management is an approach taken to risk by understanding, identifying and evaluating the risks of a project. The purpose of this study is to find out about risk management in construction projects. The method used is a literature study on risk management in construction projects with reference to relevant theories. The study results show that risk management is very important for every construction project to avoid losses in cost, quality and project completion schedule. Take actions to deal with risks that may occur (risk response) by means :  withhold  risk   (risk retention), reducing risk (risk reduction), transferring risk (risk transfer), avoiding risk (risk avoidance).
PENGARUH AKTIVITAS SAMPING TERHADAP TINGKAT PELAYANAN JALAN KEMAKMURAN KABUPATEN PANGKEP Maryam H; Lambang Basri Said; Mahmud
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 6 No 1 (2022): Underpass Journal of Civil Engineering, Applied sciences, and Technology
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

Side barriers are one of the causes of traffic jams that can affect the level of service performance of a road. Side resistance is expressed as the interaction between traffic flow and roadside activities related to land use along Jalan Prosperity of Pangkep City which has a significant influence on the size of the effective capacity of the road, and vice versa. The aims of this research are as follows: 1). To study land use and road networks against the characteristics of the Prosperity road section. 2). To analyze the factors of side barriers to the level of service for the Prosperity road in Pangkep City. The development of Pangkep city land use starts from the core development as the center of city activity, develops towards other supporting functions and spreads to fill lands that have not been used intensively. Land use on this road section varies for uses such as housing, gas stations, trading activities and the development of informal sector activities (food stalls). The road network for modes of transportation that are or pass on Jalan Prosperity is very diverse, such as trishaws, motorbikes, trucks, public transport cars and private vehicles. As a result, there is a mix-up that causes a delay, especially in the rickshaw mode. Whereas side friction contributes significantly to road performance in the Prosperity Road study area with an average of 17.28%. Thus, the side barriers on the Prosperity road contribute to a decrease in the level of service on the Prosperity Road as a result of the surrounding land use activities. Prosperity Road functions as a Primary Arterial Road, this is no longer in accordance with its designation so that at this time Prosperity Road can no longer be called a Primary Arterial Road.
PENGARUH PEMANFAATAN LIMBAH PERKERASAN JALAN UNTUK LASTON AC-BC DENGAN MENGGUNAKAN BAHAN BONGKARAN CAMPURAN BERASPAL Lambang Basri Said; Maryam H; Hasim
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 6 No 1 (2022): Underpass Journal of Civil Engineering, Applied sciences, and Technology
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

Asphalt mixed demolition material is a road pavement waste that is often found on the side of the road as a result of dredging residue, this is an alternative that can be used to contribute to road maintenance and save on the use of oil asphalt and aggregate materials. The purpose of this study was to determine the effect of adding road pavement waste to the AC-BC asphalt mixture and to obtain the characteristics of the AC-BC recycled asphalt mixture pavement when adding various demolition materials. For the mixture with the addition of 0%, 5%, 10%, 15% and 20% asphalt mixture. Stability values ​​are 1664.14 kg, 1518.87 kg, 1359.14 kg, 1206.33 kg and 1049.40 kg. VIM value is 4.55%; 4.80%; 5.21%; 5.78% and 6.23%. the optimum asphalt content (KAO) value is 5.6%; 5.65%; and 5.75% while the addition of unloading 15% and 20% KAO cannot be determined due to the increase in the VIM value in the mixture, which is greater than the specifications. Mixtures that use a lot of asphalt mixture unloading material show a greater VIM value and reduce the value of marshall stability so that it is necessary to limit the use of demolition material, which is a maximum of 10%.

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