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All Journal Fondasi: Jurnal Teknik Sipil Civil Engineering For Community Development
Priyambodho, Bambang Adhi
universitas sultan ageng tirtayasa
Civil Engineering, Building, Construction & Architecture Transportation

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Flood Risk Indices Mapping of Lebak Regency, Banten Province Maulana, Yovi; Purnaditya, Ngakan Putu; Wigati, Restu; Subekti, Subekti; Priyambodho, Bambang Adhi
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.19640

Abstract

Indonesia, as a developed country, has water-related disaster problems.Flood is one of them and it occurs in mostly province, includingBanten province. Lebak Regency as the region of Banten Province hashistory of flood occurrences. According to the Banten ProvincialBPBD (2021), among 2015-2020 period, twenty-nine flood eventsoccurred in Lebak Regency. The severest flood of that period occurredin 2020. A total 2389 residents’ homes and forty-five units of publicfacilities were damaged. Flood in Lebak regency historically alsoresulted in nine deaths, and two people were declared missing. Theobjective of this study is to be figuring out the flood risk profile andwhich districts have the highest risk in Lebak Regency by develop therisk indices map. Risk indices map informs the risk of flooding in eachsub-district, hence the policies taken can be delivered by the authorityproperly. The method used in this study used overlays based on PerkaBNPB No. 2 of 2012. This research obtains the map of the floodhazard, vulnerability, and capacity level that generates through QGIS.According to the results of the study, the risk index of Lebak district islow with three states. The sub-districts with the non-risk category areseven sub-districts with a percentage of 25%, while the sub-districtsthat fall into the slightly risky category are 10 sub-districts with apercentage of 35.7% and the sub-districts that are in the fairly riskycategory are 11 sub-districts with a percentage of 39.3%. These resultsgiven the conclusion that Lebak Regency is not considerable risk onhydrological flood events. Moderate level on vulnerability shouldgives note to the authorities to enhance the disaster resiliences.
North Banten Coastline Evolution Model (Case Study Tanara Beach Serang - Tanjung Kait Beach Tangerang) Saharani, Reza Nurul; Subekti, Subekti; Priyambodho, Bambang Adhi; Wigati, Restu; Purnaditya, Ngakan Putu
Jurnal Fondasi Vol 13, No 1 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v13i1.24361

Abstract

Climate Central predicts that Banten's northern coastal land will disappear by 2030. Previously, Banten has lost more than 1 kilometer of its former land. The purpose of this research is to obtain a prediction model for the evolution of the coastline between Tanara Beach (Serang Regency) to Tanjung Kait Beach, Mauk (Tangerang Regency). The method used for this research is the One-Line Model method. Based on the coastline prediction model of segment 1, Tenjoayu progressed from 2025 to 2030. Shoreline retreat occurs significantly from 2020 to 2030 around Pedaleman. The modeled shoreline around Pedaleman to the western part of Cup Island progressed significantly from 2022- 2030. The shoreline in segment 2, East of Cup Island, progressed from 2025 to 2030. West of the Ci Manceuri Estuary, the coastline retreats significantly from 2022 to 2030. East of the Ci Manceuri Estuary, the coastline tends to stabilize. Around Tanjung Kait Beach, the shoreline pattern advances significantly each year from 2022 to 2030.
Effect of Sluice Gate Opening Height on Spillway on Flow Characteristics (Physical Model) Adianti, Feni; Priyambodho, Bambang Adhi; Wigati, Restu; Purnaditya, Ngakan Putu; Subekti, Subekti
Jurnal Fondasi Vol 13, No 1 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v13i1.24865

Abstract

The sluice gate is a measuring structure that controls the upstream discharge and water level. The varying height of the sluice gate opening will cause the water level to vary both upstream and downstream. The difference in water level upstream and downstream can potentially cause scouring downstream of the gate. This study aimed to determine the effect of the height of the sluice gate opening on the flow characteristics. This study used a research method in the form of a physical model on an open channel (flume) at the Integrated Laboratory of Sultan Ageng Tirtayasa University Sindangsari. The stages of this research included pitot pipe calibration and research of flow characteristics on the height of the gate opening with variations in the height of the sluice opening (9, 10, 11, 12, 13 cm). The sluice model used is made of wooden boards with the dimensions of the door width being 1/3 of the width of the channel. The results showed that the higher the sluice opening (a), the lower the upstream water level (H) and the greater the downstream water level (Y). While the upstream flow velocity (V0) was greater and the downstream flow velocity (V1) was getting smaller so were the upstream Froude numbers (Frupstream) and downstream Froude numbers (Frdownstream). The upstream flow is classified as sub-critical flow (Fr<1), while the downstream flow is classified as super-critical flow (Fr>1).
The Effect of Groundsill Height on Bridge Pillar Flow Characteristics (Physical Model) Raissa, Azarine Vashti Alpha; Priyambodho, Bambang Adhi; Purnaditya, Ngakan Putu; Wigati, Restu; Subekti, Subekti
Jurnal Fondasi Vol 12, No 2 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i2.22047

Abstract

Groundsill is one of the categories of wide thresholds that are generally built transversely in the river downstream of a building threatened with damage caused by scouring such as bridge pillars. In addition to construction factors, local scour around the pillars can be another factor causing the collapse of the bridge structure. The purpose of this study was to determine the effect of groundsill height on flow characteristics. Physical model research on open channels (flume) was carried out at the Integrated Laboratory of Sultan Ageng Tirtayasa University, Sindangsari Campus. The groundsill model is modeled with dimensions of 8 cm peak width, 30 cm length, and groundsill height variations (1, 2, 3, 4, and 5 cm) made of wood while the bridge pillar model is modeled with a diameter of 1 inch made of PVC pipe which is filled with concrete. The results showed that the higher the groundsill (p), the higher the water level upstream (H1) is greater and downstream (H2) is smaller, while the flow speed upstream (V1) is smaller and downstream (V2) is greater so that the Froude number downstream is greater than upstream. The higher the groundsill (p), the Froude number downstream will increase (supercritical flow) while upstream will decrease (subcritical flow). 
Prediction of Snyder Synthetic Unit Hydrograph Coefficient for Cidurian Watershed Zulfa, Graciela Febriyanti; Purnaditya, Ngakan Putu; Wigati, Restu; Subekti, Subekti; Priyambodho, Bambang Adhi
Jurnal Fondasi Vol 12, No 2 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i2.22046

Abstract

Watershed management is starting with knowing and recording the problems that exist in the watershed. Condition of the watershed that continues to deteriorate can trigger natural disasters such as flash floods that occurred in the Cidurian Watershed. Hydrological design, especially for short-term phenomena runs generates the synthetic unit hydrograph. Snyder synthetic unit hydrograph is the common synthetic hydrograph that widely used on hydrological analysis. Generally, on the snyder synthetic unit hydrograph, the coefficient value (peak coefficient, time coefficient, CW75 and CW50) is only based on estimates or previous research so that the calculation of discharge is less accurate and needs further research. This study discusses the prediction of the value of the Peak Coefficient (Cp), Time Coefficient (Ct), CW75 and CW50 in the Cidurian Watershed using the Snyder Synthetic Unit Hydrograph (HSS) and get a calculation graph between the Polynomial and Collins Unit Hydrographs against the Snyder Synthetic Unit Hydrograph (HSS) in the Cidurian Watershed with rainfall data processing using the Thiessen Polygon, Mononobe, and Alternating Block Method (ABM). The results showed that the value of Peak Coefficient (Cp) = 0.59, Coefficient of Time (Ct) = 0.09, CW75 = 1.22, CW50 = 2.14, with Peak Discharge (Qp) Collins Measured Unit Hydrograph 19th hour = 1.589 m3/s, and Peak Discharge (Qp) Snyder Synthetic Unit Hydrograph 11th hour, 1 = 1.59 m3/s.
Potensi sumber mata air sebagai alternatif penyediaan air bersih pedesaan Wigati, Restu; Fathonah, Woelandari; Ruyani, Nyi Raden; Priyambodho, Bambang Adhi; Pinem, Mekro Permana; Abdurohim, Abdurohim; Budiman, Arief; Syahid, Mush'ab Abdu Asy
Civil Engineering for Community Development (CECD) Vol 2, No 1 (2023): Edisi April 2023
Publisher : Department of Civil Engineering Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/cecd.v2i1.19521

Abstract

Tersedianya air bersih bagi masyarakat khususnya wilayah pedesaan mampu mendorong masyarakat lebih kreatif, produktif, serta meningkatkan perekonomian desa. Prasarana air bersih belum sepenuhnya dimanfaatkan dengan baik oleh masyarakat yang tinggal di Desa Tejamari, Kabupaten Serang. Akses penyediaan air bersih yang berpihak dan terjangkau khususnya bagi masyarakat dengan ekonomi rendah yang masih terbatas menggerakkan tim untuk melakukan kegiatan pengabdian kepada masyarakat untuk bersama-sama mencari solusi permasalahan. Kegiatan ini merupakan studi awal program perwujudan infrastruktur desa dengan menemukan alternatif sumber air bersih. Berdasarkan aset serta potensi yang dimiliki desa setempat dan metode pendekatan asset-based community development, survei potensi dilakukan dengan objeknya yaitu Mata Air Cibojong. Berdasarkan hasil survei awal, diperoleh data debit sebesar 0,34 liter/detik. Data tersebut digunakan sebagai dasar dalam merencanakan sistem jaringan air bersih berupa bangunan penangkap mata air (PMA) dengan kapasitas tampung 5 m3 dan dua unit hidran umum (HU) komunal yang mampu menyuplai kebutuhan air bersih secara kontinu berkapasitas 60 liter/orang/hari untuk kebutuhan 30-60 kepala keluarga dengan teknik gravitasi. The availability of clean water for the community, especially in rural areas, can encourage people to be more creative and productive and improve the village economy. Clean water infrastructure has yet to be fully utilized by the people living in Tejamari Village, Serang Regency. Access to an impartial and affordable clean water supply, especially for people with a low economy, which is still limited, motivates the team to carry out community service activities to find solutions to problems together. This activity is an initial study of the village infrastructure embodiment program by finding alternative clean water sources. Based on the assets and potential of the local village and the asset-based community development approach, a potential survey was conducted with the object, namely the Cibojong Springs. Based on the initial survey results, discharge data of 0.34 liters/second was obtained. This data is used as the basis for planning a clean water network system in the form of a spring catchment building (SCB) with a capacity of 5 m3 and two communal public hydrant units (HU) that are capable of supplying clean water continuously with a capacity of 60 liters/person/day. 30-60 heads of families with gravity technique.
Rekomendasi Teknis Pemugaran Struktur dan Situs Heritage Makam Kapiten Cina Oey Kiat Tjin, Kota Tangerang Syahid, Mushab Abdu Asy; Subekti, Subekti; Darwis, Zulmahdi; Priyambodho, Bambang Adhi; Ujianto, Rifky; Baehaki, Baehaki
Civil Engineering for Community Development (CECD) Vol 3, No 1 (2024): Edisi April 2024
Publisher : Department of Civil Engineering Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/cecd.v1i2.25033

Abstract

Pelindungan dan pengembangan struktur dan situs warisan budaya (heritage)  di Indonesia untuk kepentingan agama, pendidikan, dan pariwisata membutuhkan perhatian teknis demi mempertahankan keberlanjutan dan keberdirian wujud fisiknya. Artikel ini menjelaskan implementasi kepakaran disiplin ilmu rekayasa struktur-konstruksi dan arsitektur melalui pembantuan konsultasi praktik preservasi dan konservasi objek Cagar Budaya di Makam Kapiten Cina Oey Kiat Tjin di Kota Tangerang, Provinsi Banten. Kegiatan ini menghasilkan rekomendasi konseptual dan teknis sebagai landasan ilmiah sebelum pemugaran, meliputi penataan area makam, restorasi bangunan makam, dan rehabilitasi nisan. Metode observasi dan kunjungan lapangan melibatkan ekskavasi, dokumentasi, dan diskusi selaku narasumber kegiatan yang diselenggarakan Balai Pelestarian Kebudayaan Wilayah VIII Kemendikbudristek. Program ini akan bermanfaat untuk pemerintah daerah dan masyarakat umum selaku agen pelestari warisan budaya komunitas Cina Benteng di Kota Tangerang.
Analisis Kelayakan Teknis Infrastruktur Cagar Budaya Nasional Bendung Lama Pamarayan di Serang-Banten Syahid, Mushab Abdu Asy; Subekti, Subekti; Bethary, Rindu Twidi; Budiman, Arief; Purnaditya, Ngakan Putu; Priyambodho, Bambang Adhi; Pradana, Muhammad Fakhruriza; Intari, Dwi Esti; Asyiah, Siti
Civil Engineering for Community Development (CECD) Vol 3, No 2 (2024): Edisi Oktober 2024
Publisher : Department of Civil Engineering Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/cecd.v3i2.29280

Abstract

Artikel ini merefleksikan dinamika pelestarian infrastruktur bersejarah Bendung Lama Pamarayan yang tengah dalam proses pemeringkatan Struktur Cagar Budaya nasional. Analisis kelayakan teknis dalam kajian delienasi secara khusus bertujuan mengidentifikasi objek infrastruktur Cagar Budaya untuk persiapan pekerjaan pemugaran. Implementasi konsep studi kelayakan (feasibility study) dalam manajemen rekayasa konstruksi dan tinjauan terhadap elemen-elemen atribut fisik Bendung Lama Pamarayan yang melibatkan unsur akademisi dan pakar dalam membantu aspek teknisnya. Rangkaian kegiatan pengabdian masyarakat ini mencakup observasi via kunjungan lapangan, studi arsip sejarah, serta identifikasi dan analisis kondisi eksisting objek. Diseminasi hasil kajian dilakukan melalui diskusi kelompok terpumpun yang melibatkan pemangku kepentingan di tingkat birokrasi, pelestari, akademisi, dan masyarakat Desa Pamarayan dan Desa Penyabrangan untuk memastikan pendekatan partisipatoris dalam revitalisasi pusaka Bendung Lama Pamarayan di masa depan. 
MODELING OF WATER SEEPAGE AT SINDANG HEULA DAM Kusumaningrum, Winda; Purnaditya, Ngakan Putu; Fathonah, Woelandari; Priyambodho, Bambang Adhi; Subekti, Subekti; Nabila, Firyaal
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v13i2.29289

Abstract

A embankment dam is a dam built by stockpiling materials such as stones, gravel, sand, and soil on a certain composition with the function of carrying or lifting the water surface contained in the reservoir [1]. One of the structural safety of a embankment dam is against water seepage. Water seepage that occurs on the slope body during flooding can affect the decrease in slope stability, where the seepage will cause piping symptoms [2]. This study aims to determine the seepage discharge value that occurs in the dam body. The object of this study was Sindang Heula embankment dam in Banten Province. The method used is to conduct an analysis using GeoStudio software with the SEEP/W feature for seepage discharge. Simulation run in two scenarios as steady state condition and transient. Both scenario also run at least on three reservoir water level conditions. They are water level during flood, normal water level and half of full water level. Steady state condition gave seepage flux about 3.773×10-6 m3/sec/m2 as maximum value. In another hand, 30 days transient simulation gave maximum value about 8.7188×10-4 m3/sec/m2 and it occurred in small reference time after initial run. This study infomed that SEEP/W has capability to simulate water flux through porous media of embankment dam.
Evaluation of PDIR-Now Satellite Rainfall Data on Observational Rainfall Data (Case Study: Taktakan District, Serang City, Banten) Lutfiah, Qonita; Purnaditya, Ngakan Putu; Priyambodho, Bambang Adhi; Wigati, Restu; Subekti, Subekti
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v13i2.28721

Abstract

Rainfall data is one of the important initial inputs in hydrological analysis, but it is often incomplete due to various constraints such as damage to measuring instruments or uneven distribution of measurement stations. To overcome this problem, weather observation with satellites can be used. However, before using satellite rainfall data, it is necessary to test its suitability with field data to ensure its accuracy. This study aims to evaluate the PDIR-Now satellite rainfall data on observation rainfall data in Serang City to determine the feasibility of using satellite rainfall data and the influence of rain periods (daily (>50mm/day), 15 days, and monthly) on the reliability of satellite data. The analysis method in this study uses statistical analysis in the form of regression analysis at the calibration stage and RMSE, NSE, and Pearson (r) correlation coefficient at the validation stage. Based on the results of the study , it is known that the PDIR-Now satellite can estimate the best rainfall in the monthly period.
Co-Authors Abdurohim, Abdurohim Adianti, Feni Asyiah, Siti Baehaki, Baehaki Bethary, Rindu Twidi Budiman, Arief Darwis, Zulmahdi Fathonah, Woelandari Fathonah, Woelandari Intari, Dwi Esti Jannah, Dahlia Raudothul Kusumaningrum, Winda Lutfiah, Qonita Maulana, Yovi Nabila, Firyaal Nabila, Firyaal Ngakan Putu Purnaditya Nyi Raden Ruyani Pinem, Mekro Permana Pradana, Muhammad Fakhruriza Raissa, Azarine Vashti Alpha Restu Wigati, Restu Saharani, Reza Nurul Subekti, Subekti Syahid, Mush'ab Abdu Asy Syahid, Mushab Abdu Asy Ujianto, Rifky Waita, Stanley Reynaldi Frits Sirway Zulfa, Graciela Febriyanti