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All Journal Journal of Applied Geospatial Information Astonjadro Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil Jurnal Talenta Sipil Tameh : Journal of Civil Engineering Prosiding Seminar Nasional Rekayasa dan Teknologi (TAU SNAR- TEK) Rona Teknik Pertanian Jurnal Teknik Sipil
Feril Hariati
Universitas Ibn Khaldun Bogor
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Transportation

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Kajian Intrusi Air Laut akibat Backwater di Muara Sungai Citanduy Hariati, Feril; Taqwa, Fadhila Muhammad Libasut; Qonita, Nadhira Shofa
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 6 No. 2 (2022)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v6i2.7288

Abstract

ABSTRACTThe Citanduy River Estuary is a coastal area that has the potential to experience seawater intrusion that occurs due to the influence of tides at the river mouth. Seawater intrusion generally has an impact on the need for clean water which is increasingly difficult, because groundwater has been contaminated with seawater. Seawater intrusion that occurs is getting longer and has an impact on agricultural land in the Citanduy watershed. This study aims to predict the length of seawater intrusion due to backwater using HEC-RAS 4.0 software, as well as to analyze the water level profile and backflow that occurs in the Citanduy River. Based on the analysis that has been carried out, the predicted length of seawater intrusion under normal conditions in 2017 and 2050 are 2.57 km and 3.50 km, respectively, the predicted length of seawater intrusion at minimum conditions in 2017 and 2050, respectively. are 2.03 km and 2.57 km, and the predicted length of seawater intrusion at maximum conditions in 2017 and 2050 are 2.57 km and 3.50 km, respectively. Keywords: Seawater Intrusion, Backwater, HEC-RAS 4.0ABSTRAKMuara Sungai Citanduy merupakan kawasan pesisir yang berpotensi mengalami intrusi air laut yang terjadi akibat pengaruh pasang surut di muara sungai. Intrusi air laut umumnya berdampak pada kebutuhan akan air bersih yang semakin sulit karena air tanah sudah terkontaminasi dengan air laut. Intrusi air laut yang terjadi semakin panjang dan berdampak pada lahan pertanian DAS Citanduy. Penelitian ini bertujuan untuk memprediksi panjang intrusi air laut akibat backwater dengan menggunakan software HEC-RAS 4.0, serta untuk melakukan analisis profil muka air dan arus balik yang terjadi di Sungai Citanduy. Berdasarkan analisis yang telah dilakukan, prediksi panjang intrusi air laut pada kondisi normal di tahun 2017 dan 2050 berturut-turut adalah sebesar 2,57 km dan 3,50 km, prediksi panjang intrusi air laut pada kondisi minimum di tahun 2017 dan 2050 berturut-turut adalah sebesar 2,03 km dan 2,57 km, dan prediksi panjang intrusi air laut pada kondisi maksimum di tahun 2017 dan 2050 berturut-turut adalah sebesar 2,57 km dan 3,50 km.Kata Kunci: Intrusi Air Laut, Backwater, HEC-RAS 4.0
Analisis Stabilitas Dan Biaya Perencanaan Dinding Penahan Tanah Tipe Bronjong di Sungai Ciliwung (Studi Kasus: Ruas Legok Nyenang Rt.01/03, Desa Leuwimalang, Kecamatan Cisarua, Kabupaten Bogor) Afryansyah, Afryansyah; Hariati, Feril; Taqwa, Fadhila Muhammad Libasut; Alimuddin, Alimuddin
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 7 No. 1 (2023)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v7i1.7369

Abstract

Abstrak: Dinding penahan tanah adalah suatu struktur yang dibangun untuk menahan tanah lateral ketika tanah mengalami perubahan dalam elevasi dan melampaui sudut geser dalam tanah. Kondisi akses utama jalan Leuwimalang di Kampung Legok Nyenang RT 01/03, mengalami kerusakan. Sementara itu setengah jalan yang mengalami penurunan tanah tidak bisa berfungsi secara maksimal, hal ini diakibatkan terjadinya longsor sepanjang 27 meter di sekitar bantaran Sungai Ciliwung. Maka dari itu dilakukan analisa perbandingan dinding penahan tanah tipe gravitasi dan tipe kantilever bertujuan untuk merencanakan bentuk dan dimensi dinding penahan tanah tipe gravitasi, menganalisis stabilitas dinding penahan tanah terhadap guling, dan geser, menganalisis biaya konstruksi serta membandingkan nilai keamanan dan biaya konstruksi dinding penahan tanah tipe bronjong dengan tipe kantilever. Perhitungan tanah aktif menggunakan Metode Rankine. Pada struktur konstruksi dinding penahan tanah kantilever didapatkan stabilitas terhadap penggeseran (Fgs) = 0,39< SF = 1,5 dan untuk stabilitas terhadap guling (Fgl) = 0,78< SF = 1,5. Biaya konstruksi total yang diperlukan untuk membuat dinding penahan tanah tipe bronjong sebesar Rp. 2.680.000.000, sedangkan biaya konstruksi total yang diperlukan untuk membuat dinding penahan tanah tipe kantilever sebesar Rp. 1.460.000.000. Jadi dinding penahan tanah yang ekonomis dari segi biaya adalah dinding penahan tanah tipe kantilever.Kata Kunci: Stabilitas, Dinding penahan tanah, Biaya konstruksiAbstract: Retaining wall is a structure built to withstand lateral soil when land changes in elevation and exceed the friction angle in the soil. The main access condition of Leuwimalang road in Kampung Legok Nyenang RT 01/03, was damaged. Meanwhile, half of the road that has subsided in the soil cannot function optimally, this is due to a 27 meters landslide around the banks of the Ciliwung River. Therefore, a comparative analysis of the gravity-type and cantilever-type retaining walls is carried out to plan the shape and dimensions of the gravity-type retaining wall, to analyze the stability of the retaining wall against rolling and shear, to analyze construction costs and to compare the value of safety and construction costs of retaining walls. gabion type with cantilever type. Active soil calculation using the Rankine Method. In the cantilevered retaining wall construction structure, the stability to displacement (Fgs) = 0.39 <SF = 1.5 and for stability to overturning (Fgl) = 0.78 <SF = 1.5. The total construction cost required to construct a gabion-type retaining wall is Rp. 2,680,000,000, while the total construction cost required to construct a cantilever type retaining wall is Rp. 1,460,000,000. So an economical retaining wall in terms of cost is a cantilever type retaining wall.Keywords: Stability, Retaining walls, Construction costs.
Perhitungan Kebutuhan Air Irigasi untuk Perluasan Daerah Irigasi (Studi Kasus: Daerah Irigasi Cisadeng II, Desa Leuwisadeng, Kecamatan Leuwisadeng, Kabupaten Bogor) Rahayu, Uga Sri; Hariati, Feril; Alimuddin, Alimuddin; Nandiasa, Jantiara Eka
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 7 No. 1 (2023)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v7i1.8425

Abstract

The need for irrigation water as a whole need to be known in the planning and management of irrigation systems. Given that the Cisadeng II Irrigation Area (DI) located in Leuwisadeng District, Bogor Regency, experienced an expansion of the paddy field area from 32 ha to 42 ha, it is necessary to carry out an analysis of the demand for irrigation water discharge on various cropping patterns. This study used two methods, namely manual calculation (KP-01 concept) and calculation using the CROPWAT application version 8.0. This study aims to compare the results of the two calculations. From the results of the study, the amount of irrigation water needed for rice cropping pattern with the beginning of land preparation in November, with manual calculations (KP-01 concept) using the modified Penman method is 8.12 - 19.00 m3/sec. Meanwhile, according to CROPWAT Version 8.0 calculations, it is 8.03 - 18.39 m3/sec. Thus, it can be concluded that the calculations with the two methods do not give too different values. In addition, from the results of calculating the reliable debit, the use of the CROPWAT Version 8.0 method provides a more accurate value. Keywords: Irrigation, water demand, manual calculation (KP-01), CROPWAT Version 8.0
Studi Perbandingan Daya Dukung Aksial Tiang Pancang Tunggal Persegi Berdasarkan Hasil Uji Pembebanan Statik (SLT) dan Uji PDA pada Pembangunan Apartemen Loftville City Kota Tangerang Selatan Taqwa, Fadhila Muhammad Libasut; Muktadir, Redho; Hariati, Feril; Lutfi, Muhamad; Apriliyandi, Ande
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 7 No. 2 (2023)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v7i2.9176

Abstract

Abstract: The deep foundation is one of the most important elements in the construction of high-rise buildings because the weight of the building will be fully borne by the foundation. This study aims to provide an overview of the prediction of the axial bearing capacity of single piles through a mathematical approach based on the results of the tests performed. The design axial bearing capacity is estimated through analysis of soil investigation results (N-SPT test results, DCPT test results, and laboratory investigation results), while the actual axial bearing capacity is obtained through interpretation of the Static Loading Test (SLT) results using the Davisson, Chin, and Mazurkiewicz, and the results of the PDA (Pile Driving Analyzer) load test were analyzed using the CAP-WAP application. The analysis was carried out on single piles with dimensions of 40x40 cm2, located in the Loftville City Apartment development project, South Tangerang City. Based on the results of the analysis that has been carried out, the planned axial bearing capacity is 131.3 tons, while the average carrying capacity based on the results of SLT interpretation on three tested piles using the Davisson, Mazurkiewicz, and Chin methods are 161.7; 205.4; and 98.8 tonnes. The results of the analysis are compared to the results of the PDA test, which shows a bearing capacity value of 290.1 tons, so the BCR values are 65.70% and 45.26% respectively. The BCR value is based on the results of the interpretation of the SLT test successively -respectively by 55.73%, 70.78%, and 34.06%. The BCR value which is not close to 100% may occur due to an error in determining the planned carrying capacity of 131 tons which is far below the actual carrying capacity value based on the PDA test results. The design carrying capacity value is then corrected to 100 tonnes and used as the 100% design load in the static load test so that the interpretation results also show BCR results that are not very accurate.
Desain Alternatif Struktur Talang Air Beton pada Saluran Sugih, Desa Cibedug, Kecamatan Ciawi Nopiyansah, Muhammad Ilham; Hariati, Feril; Chayati, Nurul; Insan, Muhammad Khaerul
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 7 No. 2 (2023)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v7i2.9436

Abstract

ABSTRACT The provision of water in wet farming is very important to support optimal crop yields. The irrigation system on the Sugih Canal in Cibedug Village, Ciawi, Bogor Regency was affected by a landslide with a depth of 8 meters, which resulted in a 28 meter long canal being cut off. This study aims to plan the construction of reinforced concrete gutters with a size of 60 cm and a height of 80 cm to repair broken points. The design of reinforced concrete gutters refers to SNI 03-2847-2002. It is planned that the floor plate thickness is 20 cm and the channel wall thickness is 15 cm, using concrete with quality K-250 (fc' = 25 MPa). Based on the analysis that has been carried out, the live load is 250 kg/m, the dead load is 748 kg/m, and the factored load is 1297.6 kg/m. The maximum moment (Mmax) that occurs at the pin support is 38,281 kNm. Concrete reinforcement on the channel floor plate is in the form of main reinforcement D12-135, and reinforcement for D8-300. Reinforcement for wall plate is main reinforcement D12-115, reinforcement for D8-255.
Analysis of Soft Soil Improvement Using Prefabricated Vertical Drains (PVD): A Case Study of Rorotan, Cilincing, North Jakarta Hariati, Feril; Chayati, Nurul; Jannah, Lifa Raudhatul
ASTONJADRO Vol. 14 No. 2 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i2.17556

Abstract

Soft soils in the Rorotan area of North Jakarta frequently encounter significant stability and settlement issues, which can affect the structures situated on them. This study focuses on applying the Prefabricated Vertical Drain (PVD) method to expedite the soil consolidation process, aiming to enhance soil strength and reduce the potential for settlement. The analysis uses boring log data and laboratory test results from the RDF construction project as secondary data and includes calculations of settlement magnitude and consolidation duration. The study results indicate that PVD installation considerably speeds up soil consolidation and improves soil bearing capacity compared to conventional soil improvement techniques. Using Prefabricated Vertical Drains (PVD) of 100 mm x 30 mm and a depth of 12 meters, the consolidation process can be shortened to just a few months. For PVD spacing of 1.5 meters, the consolidation time can be reduced to 6 months. With 1.8 meters spacing, it becomes 12 months; 2 meters spacing requires 15 months; 2.5 meters spacing takes 27 months; and 3 meters spacing needs 39 months. The study highlights a reduction in consolidation time from 277.58 months with a settlement of 0.835 meters to a few months, depending on the spacing used, reflecting a 97.8% reduction in time.
ANALISIS STABILITAS LERENG BOGOR-CILEBUT DENGAN PENDETAILAN DI STA. 0 + 040 Syamsul Arifin, Dede; Hariati, Feril
ASTONJADRO Vol. 1 No. 1 (2012): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v1i1.781

Abstract

Penelitian ini mengkaji tentang analisis stabilitas lereng Bogor-Cilebut digunakan data hasil pengamatan secara langsung, sedangkan untuk Sta.0+040 digunakan data uji CPT (Sondir) dan data LHR (Lalu lintas Harian Rata-rata). Analisis lereng Bogor-Cilebut dilakukan berdasarkan peta situasi global kondisi lereng yang didapat. Analisis stabilitas lereng pada Sta.0+040 dilakukan dengan program komputer Slope W. Hasil analisis menunjukkan adanya tumbuhan, bangunan dan lereng tidak langsung bersinggungan dengan badan jalan dapat memperkuat stabilitas lereng. Dindingpenahan tanah pada Sta.0+040 memenuhi syarat stabilitas lereng dengan nilai Faktor Keamanan yang didapat sebesar 2,021.
STUDI KELAYAKAN PEMBANGUNAN ALUR PELAYARAN DI MUARA SUNGAI CIUJUNG LAMA KABUPATEN SERANG Muhammad LT, Fadhila; Hariati, Feril
ASTONJADRO Vol. 2 No. 2 (2013): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v2i2.796

Abstract

Rencana normalisasi Sungai Ciujung Lama yang mengalami sedimentasi meliputi perkuatan tebing saluran dan konstruksi pelindung pantai. Studi keandalan kapasitas saluran dilakukan untuk mengetahui debit dan kecepatan rencana kanal, juga untuk mengetahui ketahanan dinding saluran terhadap penggerusan. Hasil perhitungan dimensi kanal yang direncanakan berupa saluran trapesium dengan lebar dasar 20 meter, lebar puncak 48 meter dan tinggi 7 meter, memiliki debit maksimum 473,79 m3/detik, debit aliran normal 249,41 m3/detik, dan debit jagaan 224,38 m3/detik. Kecepatan aliran maksimum adalah 1,99 m/detik, dan kecepatan aliran normal adalah 1,66 m/detik jauh melebihi kecepatan yang diizinkan sebesar 0,002 m/detik, menunjukkan bahwa dinding saluran tidak aman terhadap erosi, sehingga direncanakan perkuatan dengan mempergunakan pasangan batu kosong (riprap) dengan berat butir antara 10-60 kg, lapis pasir kasar dengan tebal 20 cm, dan filter berupa lapis geotekstil dengan bukaan O95 0,033 mm. Sedangkan perencanaan konstruksi pelindung pantai dilakukan dengan menentukan tinggi gelombang representatif H10, penentuan kondisi gelombang, tinggi muka air rencana, dan penentuan elevasi puncak revetmen. Perencanaan struktur pelindung pantai berupa revetmen dengan tinggi 6.00 meter, kemiringan 1:2, material penyusun blok beton segmental dengan tebal 0,35 meter, lapis pasir kasar dengan tebal 20 cm, dan filter berupa lapis geotekstil dengan bukaan O95 0,024 mm.
ANALISIS KOEFISIEN DEBIT MODEL ALAT UKUR CELAH SEGIEMPAT DI LABORATORIUM HIDROLIKA TEKNIK SIPIL UNIVERSITAS IBN KHALDUN BOGOR Ginanjar, Bagus; Hariati, Feril
ASTONJADRO Vol. 4 No. 2 (2015): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v4i2.824

Abstract

Rumusan hidrolika sebagian besar merupakan rumusan empiris yang diperoleh dari hasil serangkaian pengujian di laboratorium. Untuk menambah wawasan pengetahuan mahasiswa terhadap ilmu hidrolika, laboratorium merancang bangun model saluran terbuka yang dilengkapi oleh alat ukur, salah satunya adalah alat ukur celah segiempat. Dengan persamaan Kindsvater-Carter, diperoleh nilai Cd 0.9729 Berdasarkan nilai penyimpangan baku hasil percobaan dengan dua metode pengukuran, nilai koefisien Cd yang digunakan adalah nilai hasil metode volumetrik.
STUDI KARAKTERISTIK ALIRAN PADA FLUME SALURAN TERBUKA DI LABORATORIUM TEKNIK SIPIL UIKA Dwi Astuti, Gita Yunianti; Hariati, Feril
ASTONJADRO Vol. 5 No. 1 (2016): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v5i1.831

Abstract

Karakteristik aliran dalam saluran terbuka secara umum dibedakan menjadi aliran sub kritis, kritis dan super kritis, berdasarkan parameter bilangan Froude yang dipengaruhi oleh kecepatan dan kedalaman aliran pada saluran terbuka. Model saluran terbuka di Laboratorium Teknis Sipil UIKABogor dilengkapi dengan fasilitas pengatur kemiringan untuk memodelkan karakteristik aliran berdasarkan kecepatan dan kedalamannya. Melalui serangkaian pengujian dengan mensimulasikan kemiringan saluran diperoleh karakteristik aliran air dalam model saluran terbuka. Hasil dari pengujian ini akan diterapkan dalam pelaksanaan kegiatan praktikum hidrolika di Laboratorium Hidrolika Jurusan Teknik Sipil Fakultas Teknik Universitas Ibn Khaldun Bogor.
Co-Authors Acep Hidayat Afryansyah, Afryansyah Alimuddin Alimuddin Alimuddin, Alimuddin Apriliyandi, Ande Chayati, Nurul Chika Restu Maulidina, Chika Dini Aryanti Dwi Astuti, Gita Yunianti Fachruddin Fachruddin Fadhila Muhammad Libasut Taqwa Fadhillah Sulaeman, Nur Handika Farodhiyah, Siti Nurfatimatul Ginanjar, Bagus Hasibuan, Agus Fahrudi Hayati, Noor Ida Herman Herman Insan Fadil Insan Fadil Insan, Muhammad Khaerul Jannah, Lifa Raudhatul Mardiaman, Mardiaman Maulana Malik Ibrahim Muhamad Fadli Muhamad Lutfi Muhamad Rizki Muhammad Ilham Muktadir, Redho Nahrudin, Ma'mun Nandiasa, Jantiara Eka Nopiyansah, Muhammad Ilham Nur Handika Fadhillah Sulaeman Nuryanto Nuryanto Priyadi, Wisia Joko Putri, Andini Rizkarti Qonita, Nadhira Shofa Rahayu, Uga Sri Rahman, Ari Awalul Rulhendri Rulhendri Sadewa, Galih Salman, Nurcholis Salman, Nurcholis Saputra, Lingga Suprapti Suprapti Syaja'ah, Siti Kholifah Syamsul Arifin Tamaulina Br Sembiring Yanuarsyah, Ihsal