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FROPIL (Forum Profesional Teknik Sipil)
Published by Universitas Bangka Belitung
ISSN : 23382791     EISSN : 26211440     DOI : 10.33019/fropil
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
FROPIL (Forum Profesional Teknik Sipil) is a scientific journal of the Department of Civil Engineering, Bangka Belitung University, which is a medium of scientific communication to disseminate information and development of knowledge for researchers and practitioners in the field of Civil Engineering.
Arjuna Subject : -
Articles 149 Documents
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The PRIDIKSI DEBIT PUNCAK SUNGAI AIR KETAHUN HULU KABUPATEN LEBONG DENGAN MENGGUNAKAN METODE HIDROGRAF SATUAN SINTETIK GAMA I Haris Ifawan Zega; Khairul Amri; Muhammad Fauzi
FROPIL (Forum Profesional Teknik Sipil) Vol 9 No 2 (2021): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1541.408 KB) | DOI: 10.33019/fropil.v9i2.2303

Abstract

ABSTRACT The Ketahun Downstream watershed (DAS) is one of the watersheds in Lebong. The Air Ketahun Downstream River Basin flows from the upstream area located in the Lebong Regency. The purpose of this study was to obtain the planned peak discharge on Talang Bunut Village and its surroundings due to frequent flooding when the water discharge rises in the Air Ketahun Down Stream Basin in analyzing hydrology using HSS Gama 1. Rainfall is very influential on the amount of water flowing in a river. Hydrological analysis to obtain peak discharge in this way uses daily rainfall data for 10 years. The peak discharge obtained in the Air Ketahun Downstream watershed in Talang Bunut village, Uram Jaya sub-district, Lebong Regency for a 100-year return period using the HSS Gama I method, which is 3030.45 m3 / second with a peak time of 2. Keywords: Rainfall, Synthetic unit hydrograph, Peak discharge.
ANALISIS FAKTOR YANG BERPENGARUH TERHADAP PEMBENGKAKAN BIAYA SELAMA PELAKSANAAN PROYEK DI MASA PANDEMI COVID-19 PADA PELAKU JASA KONSTRUKSI SKALA KECIL DI BALI Ida Ayu Cri Vinantya Laksmi; I Wayan Jawat; Ni Komang Armaeni
FROPIL (Forum Profesional Teknik Sipil) Vol 9 No 2 (2021): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (568.781 KB) | DOI: 10.33019/fropil.v9i2.2432

Abstract

The Covid-19 virus pandemic that hit Indonesia, especially Bali, had a huge impact on people's lives. This has an impact on several sectors, ranging from the health sector, the economy, education, tourism, including the development sector. The Corona outbreak has forced all countries to revise the development plans that have been proclaimed. Targets were realistically adjusted, assumptions were changed according to current circumstances, and short-term program priorities were shifted largely to address the Covid-19 pandemic. In the context of accelerating development to restore economic conditions, several small-scale construction service actors are still able to carry out development even though they have to experience several obstacles. During the implementation of development during a pandemic, of course, some costs undergo significant changes that can even cause cost overruns. The swelling of construction project costs is highly dependent on several factors, both internal and external factors of the project. Several factors were very influential in cost overruns during the implementation of projects carried out by small-scale construction service actors during the Covid-19 pandemic, including inaccurate cost estimates (9.33%), errors in choosing work methods (8.84%) ), low labor productivity (8.15%), dimensional error/measurement of work in progress (8.14%), frequent work delays (8.04%), schedule delays due to weather effects (8.00%), an increase in material prices (7.94%), high equipment prices/rents (7.67%), delays/lack of materials and materials (7.31%), material damage (6.81%), material specifications required unsuitable (6.52%), and untimely payment methods (6.26%).
ANALISIS STABILITAS DINDING PENAHAN TANAH TERHADAP DRAWDOWN PADA LERENG SUNGAI AREA DAM BADENG KECAMATAN SONGGON, BANYUWANGI. Holis Nurshinta; Paksitya Purnama Putra; Indra Nurtjahjaningtyas
FROPIL (Forum Profesional Teknik Sipil) Vol 9 No 2 (2021): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (966.702 KB) | DOI: 10.33019/fropil.v9i2.2504

Abstract

The Badeng River, which is located in Songgon District, Banyuwangi Regency, has a discharge that often overflows, causing damage to the retaining wall and erosion of the riverbank slopes of the Badeng Dam area. This is a problem for local residents because the use of water becomes less than optimal and can increase the risk of flooding in the downstream area of the river. To prevent landslides on the river bank, slope stability analysis is carried out using a gravity type retaining wall that can withstand overturning, shearing forces, and is safe against carrying capacity and pays attention to drawdown. The drawdown analysis was modeled for 20 hours at the initial condition of the river water level receding towards flooding and then returning to its original condition.. Modeling is done with Geoslope studio. The results of the gravity wall stability analysis against drawdown are declared safe. When the river water level is higher, the slope safety factor value will increase. Otherwise, when the river water level decreases, the slope safety factor value will decrease. This happens because it is influenced by the ups and downs of the value of passive pressure given water to the slopes. The most critical safety factor condition occurs during low tide conditions because there is still residual river water entering the soil pores. Analysis of stability against overturning force, shear force, and safety against bearing capacity was also declared safe.
KAJIAN PEMANFAATAN MATRAS BAMBU PADA PERBAIKAN NILAI CALIFORNIA BEARING RATIO (CBR) TANAH LEMPUNG Aazokhi Waruwu; Memotani ZEGA; Debby ENDRIANI; Rika Deni SUSANTI
FROPIL (Forum Profesional Teknik Sipil) Vol 9 No 2 (2021): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (764.342 KB) | DOI: 10.33019/fropil.v9i2.2515

Abstract

Clay soil has low bearing capacity, stability, and CBR (California Bearing Ratio). Subgrade with low CBR need reinforcement to improve mechanical properties and increase bearing capacity when compacting and spreading soil with heavy equipment and when the vehicle load is working on the road surface. Bamboo material has the potential to be used as reinforcement for clay soil. This study aims to determine the effect of woven and non-woven bamboo mat reinforcement and the effect of the number of layers of reinforcement on the CBR value. Reinforcement of bamboo mats is distinguished by 3 and 5 layers of woven and non-woven types with the number of strokes on the CBR specimen as many as 25-blow and 56-blow. The CBR test was conducted on unreinforced and reinforced clay. The CBR value of soil reinforced with non-woven bamboo mats was obtained at 4.4-5.06%, while the CBR value for soils with reinforced woven bamboo mats was 4.56-5.30%. The arrangement of the woven type bamboo mats is closer and tied to each other, making it more sturdy and stable in accepting the load. The number of layers of reinforcement with closer vertical spacing results in a higher CBR value than the number of layers of reinforcement that are less. Closer vertical spacing can expand the pressure contact area, so that the load that can be carried is higher. Woven type bamboo mats with more layers were found to have good performance in increasing the CBR value of subgrade for road construction.
PERILAKU TEKANAN AIR PORI PADA BENDUNGAN BAJULMATI MULAI PENGISIAN HINGGA TAHUN 2020 Rahman Hakim Ardiansyah; Nofyar Dwi Khurtumi
FROPIL (Forum Profesional Teknik Sipil) Vol 9 No 2 (2021): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1153.611 KB) | DOI: 10.33019/fropil.v9i2.2553

Abstract

Bendungan Bajulmati mulai pengisian awal waduk pada tahun 2015 dan pemantauan tekanan air pori dilakukan dengan pengukuran pisometer pneumatik yang dipasang di dalam tubuh dan pondasi bendungan. Pemantauan rutin dan interpretasi yang baik dari data pembacaan pisometer yang terpasang pada bendungan perlu dilakukan guna mengetahui perilaku tekanan air pori pada bendungan, sehingga dapat mengetahui secara dini masalah yang mungkin sedang terjadi, mengingat bahwa tekanan air pori dapat mempengaruhi keamanan stabilitas lereng. Tujuan dari penelitian ini adalah untuk mendapatkan perilaku tekanan air pori pada Bendungan Bajulmati mulai dari pengisian awal waduk hingga tahun 2020. Perilaku tekanan air pori pada Bendungan Bajulmati, dilakukan dengan pemodelan SEEP/W kondisi transient, kemudian dibandingkan dengan data hasil pengukuran pisometer di lapangan. Hasil pemodelan menunjukkan bahwa muka air waduk mempengaruhi perilaku tekanan air pori pada tubuh bendungan. Nilai tekanan air pori hasil pemodelan nilainya lebih rendah daripada pengukuran pisometer di lapangan dengan deviasi sebesar 2,2 dan 2,1 mH2O, namun demikian data pembacaan pisometer PP6 dan PP7 masih menunjukkan trend yang sama dengan hasil pemodelan, sehingga disimpulkan bahwa kondisinya masih wajar.
ANALISIS KONDISI KERUSAKAN JALAN MENGGUNAKAN METODE PAVEMENT CONDITION INDEX (PCI) DAN INTERNATIONAL ROUGHNESS INDEX (IRI) BESERTA ALTERNATIF PENANGANANNYA (Studi Kasus: Jalan Samaun Pulubuhu - Jalan Boliohuto Huidu - Jalan A.K. Luneto) herris julian Koromath; Frice L Desei; Yuliyanti Kadir
FROPIL (Forum Profesional Teknik Sipil) Vol 10 No 1 (2022): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1072.685 KB) | DOI: 10.33019/fropil.v10i1.2785

Abstract

Samaun Pulubuhu Street - Boliohuto Huidu Street - A.K. Luneto Street is one of the roads connecting Gorontalo City, Djalaludin Airport, and surrounding districts in Gorontalo Province. This study aims to compare the value of road conditions based on the PCI and IRI methods and determine the alternative treatments.This study uses the Pavement Condition Index (PCI) and International Roughness. Index (IRI) methods. The PCI value is obtained through a direct visual survey of road conditions. The IRI value was obtained through a survey using a car and the Roadlab Pro application.The results show that the condition of the roads based on the PCI method is excellent 19.44%, very good 8.8%, good 14.81%, moderate 18.06%, bad 17.13%, very bad 10.65%, and failed 11.11%. Meanwhile, road conditions based on the IRI method are good 3.13%, moderate 64.06%, lightly damaged 21.09%, and heavily damaged 11.72%. The PCI value on Samaun Pulubuhu Street is 52.48 in moderate condition with the type of treatment needed is minor rehabilitation, on Boliohuto Huidu Street is 61,53 in good condition with the type of treatment needed is routine maintenance, and on A.K. Luneto Street is 23.98 in bad condition with the type of treatment needed is reconstruction. The IRI value on Samaun Pulubuhu Street is 8.42 in a slightly damaged condition with the type of treatment needed is road quality improvement, on Boliohuto Huidu Street - A.K. Luneto Street are 5.68 and 6.41 in moderate condition with the type of treatment needed is regular maintenance.
PENGARUH PENAMBAHAN SEMEN, ABU SEKAM, DAN SERAT FIBER TERHADAP PENINGKATAN KUAT GESER TANAH LEMPUNG Indrayani Indrayani .; Andi Herius; Alfin Ashadiq; Egal Hardewo; Arpan Hasan; Norca Praditya; Darma Prabudi
FROPIL (Forum Profesional Teknik Sipil) Vol 10 No 1 (2022): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (616.432 KB) | DOI: 10.33019/fropil.v10i1.2826

Abstract

Soil is an important element in supporting development activities in the world of civil construction. One type of soil that is often found in South Sumatra is clay. Clay soil is a type of fine-grained soil that is strongly influenced by water content. Each clay has a different carrying capacity value, therefore an analysis is needed to test the effect of adding a mixture of materials to the clay. To see the effect of adding mixed materials to the soil, a test was carried out, in this test soil samples were taken from the Banyuasin district and added mixed materials in the form of fiber, husk ash and cement. For variations in soil mixture testing, 0.1% fiber, 2.5% husk ash and cement consist of 2.5%, 5% and 7.5% as well as plain water. The test results show that the addition of a mixture of fiber, husk ash and cement can improve the physical and mechanical properties of clay. For testing of physical and mechanical properties, where the cohesion value increased with the addition of 7.5% cement of 43.78 Kpa with a shear angle of 17.30o.
ANALISIS MODEL TARIKAN PERGERAKAN KENDARAAN MENUJU KAWASAN EKONOMI KHUSUS (KEK) WISATA TANJUNG GUNUNG KABUPATEN BANGKA Indra Gunawan; Boy Dian Anugra Sandy
FROPIL (Forum Profesional Teknik Sipil) Vol 10 No 1 (2022): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (378.203 KB) | DOI: 10.33019/fropil.v10i1.2830

Abstract

During the New Normal period of the Covid-19 pandemic, activities in the economic, social, and cultural sectors began to resume activities. Likewise, activities in the tourism sector which have begun to be active again, supported by land, sea, and air transportation modes have also begun to be active again. This is in accordance with the President's desire to accelerate economic recovery during the Covid-19 pandemic. This effort is also one of the commitments of the Provincial Government of Bangka Belitung Islands to focus on developing tourism sector. There are several Special Economic Tourism Zones in the Province of Bangka Belitung Islands, one of which is Tanjung Gunung Tourism. The purpose of this study is to create a model that is used to calculate the magnitude of the attraction of vehicle movement and to identify and analyze the factors that influence to obtain a model of attraction for the movement of vehicles and visitors in tourist area of ​​Tanjung Gunung, Central Bangka Regency. There are 3 tourist destinations in this area, namely Pan Semujur Beach, Angsa Emas Hill, and Tapak Antu Beach. Data obtained by doing a correlation test and then doing a regression analysis to get the equations model. The independent variables reviewed included: prayer room (X1), bath room (X2), huts area (X3), dining area (X4), and ​​parking area (X5). From the regression analysis, it was found that a good model for pulling movement is: Y = -37.423+0.7203X4 with a coefficient of determination (R2) = 0.99. total dining area (X4).
UJI DURABILITAS DAN PENUAAN CAMPURAN BERASPAL LAPIS AUS (AC-WC) DENGAN BAHAN TAMBAH LIMBAH BOTOL PLASTIK TERHADAP VARIASI LAMA RENDAMAN Imran Kaaba; Fadly Achmad; Frice L Desei
FROPIL (Forum Profesional Teknik Sipil) Vol 10 No 1 (2022): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1582.956 KB) | DOI: 10.33019/fropil.v10i1.2852

Abstract

The addition of polymer plastics into asphalt can be done in a wet or dry way, the stability of the asphalt-concrete mixture mixed with PET is proven to increase the stability value. Durability and aging tests are used to determine the value of the Residual Strength Index (RSI), First Durability Index (FDI), and Second Durability Index (SDI). Specimens STOA made by placing the specimens in bulk in the oven for 4 hours at a temperature of 135°C, while for LTOA the specimens were in the oven in a solid state for 2 days at a temperature of 85°C, then soaked in waterbatch at a temperature of 60°C with variations in soaking time of 0.5, 24, 48 ​​, 72, and 96 hours. The parameters of the durability of the mixture are seen from RSI, FDI, and SDI. Based on the research results, the asphalt content value obtained through the results of previous studies was 6.75%. Stability values ​​for normal, STOA, and LTOA specimens were 1,178.97kg, 1,057.68kg, and 955.79kg, respectively. RSI values ​​on normal test objects, STOA, and LTOA were 95.88%, 93.58%, 91.88%, respectively. FDI with a slope value (r) for normal test objects, STOA and LTOA respectively 0.64%, 0.88%, and 0.98%. SDI of normal, STOA, and LTOA for value (a) were 7.35%, 10.76%, and 12.29%, respectively. KAO in the Marshall Test this time is a mixture of asphalt with plastic 1.2% wet process has the highest durability value of 95.88%. The longer the immersion, the lower the stability value obtained.
PEMANFAATAN BATU GUNUNG BOU BUYA KABUPATEN POSO UNTUK CAMPURAN AC-WC Efraim Bunga; Alpius Alpius; Louise Elizabeth Radjawane
FROPIL (Forum Profesional Teknik Sipil) Vol 10 No 1 (2022): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (666.932 KB) | DOI: 10.33019/fropil.v10i1.2909

Abstract

Road infrastructure development is one of the government's efforts to improve the welfare of the Indonesian people, both in urban areas and in remote areas. The use of local materials for road pavement is recommended that its use can be maximized and can reduce dependence on materials originating from outside the region. Poso Regency is one area that has the potential to have a source of material in the form of mountain rock aggregates. The purpose of the study was to determine the characteristics of the AC-WC mixture using aggregate from Mount Bou Buya, Poso Regency, and to determine the Marshall Immersion value of the AC-WC mixture using rock aggregate from Mount Bou Buya. The 2018 Bina Marga General Specifications are used as a reference in this study. the composition of the mixture for asphalt content of 5% coarse aggregate is 37.50%, fine aggregate is 51.50%, filler is 6%, for asphalt content is 5.5% coarse aggregate is 37.35%, fine aggregate is 51.20%, filler 5 ,95%, for asphalt content of 6%, coarse aggregate is 37.20%, fine aggregate is 50.90%, filler is 5.90%, for asphalt content is 6.5%, coarse aggregate is 37.05%, fine aggregate is 50.60 %, 5.85% filler, for asphalt content of 7%, coarse aggregate is 36.90%, fine aggregate is 50.30%, filler is 5.80%. Marshall Immersion Test (residual Marshall Stability) for the AC – WC mixture using Batu Gunung Bou Buya aggregate, Poso Regency following the General Specifications of Highways 2018, which is 98.04%.

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