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All Journal Jurnal Teknik Pengairan: Journal of Water Resources Engineering eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Prokons: Jurnal Teknik Sipil Oetoesan-Hindia: Telaah Pemikiran Kebangsaan Jurnal Pengabdian kepada Masyarakat JAPI: Jurnal Akses Pengabdian Indonesia GEMBIRA (Pengabdian Kepada Masyarakat) Jurnal Pengabdian dan Pemberdayaan Banyuwangi Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK)

Ikrar Hanggara, Ikrar

Jurusan Teknik Sipil, Politeknik Negeri Malang

Author-ID : 593117

Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing Public Health Social Sciences Transportation Other

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PERENCANAAN PERKUATAN TEBING PADA RUAS JALAN MALANG - KEDIRI STA ( 30KM ) DENGAN MENGGUNAKAN DINDING PENAHAN TANAH TIPE KANTILEVER DI DESA KAWADEN, KECAMATAN NGANTANG, KABUPATEN MALANG Nenohai, Imanuel F; Rasidi, Nawir; Hanggara, Ikrar
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Retaining wall is one of the structures that serves to maintain the stability of a landfill, so the heap is not moving or landslides. This building is mostly used in irrigation projects, highways, ports and others. In general, the use of retaining walls in the field consists of two types of gravity type and cantilever type. The main difference between the construction of these two types of retaining walls is that of the cantilever type, whereas the type of gravity does not use reinforcement. In terms of use, the cantilever type is more widely used for slopes that have a height of more than 6 meters, while the gravity type is used for altitudes less than 6 meters. The stability of the retaining wall can be expressed by the value of Fs (safety factor). The value of the security factor under consideration is Fs Overtuning which is the security factor to the rolling force, Fs Slading is the safety factor of the shear, Fs bearing capacity is the safety factor to the collapse of carrying capacity. Therefore, the purpose of this study is to know the efficiency of the base width of cantilever type cantilever wall on Abd.Manan Wijaya Road which is located in Kaweden Village, Ngantang District, Malang Regency so that it is stable to the style of bolsters, shear and soil bearing capacity. After the calculation, the result of stability factor to shear 1.61> 1.5 (safe), stability to bolsters 2.0> 1.5 (safe), Stability Against soil bearing capacity 142,795> qa = 123.39 kN / M2. Then it can be concluded that the condition of cantilever cantilever wall stability is safe against danger of bolsters, shear and soil bearing capacity. Keywords: Cantilever Wall Retaining Wall, Base width efficiency, Stability

STUDI PENENTUAN FAKTOR KEAMANAN STABILITAS LERENG MENGGUNAKAN METODE FELLINIUS DAN BISHOP PADA DINDING PENAHAN BATU KALI DI JL. RAYA BEJI PUSKESMAS KOTA BATU Mau, Jefrianus; Rasidi, Nawir; Hanggara, Ikrar
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Landslides are frequent disasters in the region of Batu, the intensity of heavy rainfall causing unstable slope conditions so that occurrence of landslides in the area of Jl. Raya Beji Puskesmas Kota Batu. The purpose of this study was to determine the safety factor of the smallest on the slope. Slope stability analysis is done using methods Fellinius and Bishop are in the process of the analyst performed using manual calculation table. From the analysis Fellinius methods produce FK = 0.41, FK = 0.30, FK = 0.34 and for the results of the analysis Bishop methods generate FK = 0.34, FK = 0.32, FK = 0.09 show slopes in the location of the landslide-prone state where FK

ANALISA PERAMALAN DEBIT SUNGAI MENGUNAKAN METODE ARIMA (AUTO REGRESSIVE INTEGRATED MOVING AVARAGE) DI SUNGAI BRANTAS HULU Hanggara, Ikrar; Limantara, Lily Montarcih; Sisinggih, Dian
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 2 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstrak: Debit sungai sangat dipengaruhi oleh hujan, sehingga memiliki pola yang dapat diteliti intensitasnya. Studi ini dilakukan untuk mengetahui akurasi metode peramalan debit ARIMA yang nantinya dapat digunakan sebagai pedoman penyusunan pola operasi waduk khususnya waduk Sengguruh.Data yang digunakan adalah data debit selama 10 tahun dan data tahun terakhir (2011) dipergunakan sebagai pembanding. Peramalan dilakukan juga di titik pengukuran debit (Stasiun AWLR) Gadang dan Tawangrejeni guna mengetahui penerapan metode ARIMA tersebut untuk stasiun debit dalam satu skema sungai.Akurasi terbaik dalam peralaman debit sungai didapatkan pada peramalan Inflow Waduk Sengguruh dengan nilai MAPE (Mean Absolute Percentage Error) 14,47% dan nilai KR (Kesalahan Relatif) 1,41% dari akumulasi volume tampungan.Hasil analisa pola operasi Waduk Sengguruh diketahui bahwa debit aktual maupun ramalan tidak dapat memenuhi kebutuhan energi selama 1 tahun pada tahun 2011, dan hasil peramalan maupun aktual tidak memiliki selisih yang signifikan terhadap produksi energi PLTA. Hal ini membuktikan bahwa metode peramalan dengan menggunakan ARIMA baik untuk digunakan.Kata Kunci: Peramalan debit, Pola Musiman, Pola Operasi, Waduk SengguruhÂ Abstract: Streamflow is greatly influenced by rain, so it has a pattern that can be observed for its intensity. This study was conducted to determine the accuracy of forecasting discharge by ARIMA methods that can be used as guidelines for the preparation of reservoir operation pattern especially in Sengguruh reservoir.The data used is the flow for 10 years and last year's data (2011) is used as a comparison. Forecasting is also doing at the point of discharge measurements (AWLR Station) Gadang and Tawangrejeni to determine the application of the ARIMA method for discharge station in the river scheme.The best accuracy in forecasting streamflow obtained on Reservoir Inflow Sengguruh with MAPE value (Mean Absolute Percentage Error) 14.47% and the value of KR (Relative Error) 1,41% of the accumulated volume of the storage.Results of analysis of the pattern of Sengguruh reservoir operation reveals that actual and forecast discharge can not meet the energy needs for one year in 2011, and the actual results of forecasting are not have a significant difference to the energy production of hydropower. This proves that the using ARIMA forecasting method is good for application.Keywords: Forecasting Discharge, Seasonal Flow Pattern, Pattern of Reservoir Operation, Sengguruh Reservoir.

Analisa Erosi Embung Putukrejo Menggunakan Metode Usle Hanggara, Ikrar; Irvani, Harvi
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 1 (2018): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Small DAM is an effort to conserve water. One of the problems that arise in Small DAM is sedimentation due to land erosion which results in reduced reservoir and age to use the reservoir. Putukrejo reservoir is an effort to overcome the drought that occurred in Putukrejo Village. In this study the researcher intends to study the erosion of land that has the potential to occur in the reservoir and find out the erosion categories that occur. The method used to carry out pond erosion rate analysis using the USLE method (Universal Soil Lost Equation). With this method, the average erosion rate for embung watershed is 25.4 tons / ha / year and the figure is categorized as light erosion.

KONSTRUKSI PINTU KLEP RINGAN TAHAN KOROSI SEBAGAI PINTU PENGATUR IRIGASI TAMBAK PASANG SURUT Ulu Mali, Maxensius; Khaerudin, Dian Noorvy; Hanggara, Ikrar
eUREKA : Jurnal Penelitian Teknik Sipil dan Teknik Kimia Vol 1, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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The system operations distribution in Irrigation Farming region of brackish water ponds for this is still using traditional systems and often cause inpact not optimal productions of fish pond. To overcome the problem it is necessary planning and construction of the valve door is intended to support distribution of irrigation water and optimize water distribution systems more structured and improving land productivity of fish pond land. Construction flood gates automatically planned is flood gates valve with a corrosion-resistant lightweight materials strong and flexible for the distribution of brackish water in the irrigation pond. Dimensions Channel are based on conditions on the ground that the conditions of an open airway narrowing. In the upstream water level 1.17 m, of water level downstream 0.857 m, Height of gate opening 58.75 cm, angle of gate opening 520, water velocity V¬¬1 = 0.957 m/sec V2 = 0,813 m/sec, water flowgate Q1 = 2,03 m3/sec Q2 = 1,64 m3/sec. while for the stability of the floodgates to SF sliding = 8.978> 1.5, SF shear = 6.125> 1.5, the outbreak of the construction of e = 0.167

Analisa Tingkat Bahaya Erosi (Studi Kasus Gang Putingan Jl. Padat Karya Km-2 Muara Rapak Balikpapan Utara) Menggunakan Metode USLE Hanggara, Ikrar
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 2 (2019): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Erosion is a natural process that often causes problems, especially if erosion has an impact on theurban area. The objective of the present study is to estimate the annual soil loss using USLE model inareas that have hilly topographic conditions in Putingan area, Jl.Padat Karya North Balikpapan Cityof Balikpapan. The method used is USLE (Universal Soil Loss Equation), using Erosivity Factor (R),Erodibility Factor (K), Topographic Factor (LS), Vegetation Cover Factor (C) and Erosion ControlFactor (P) is calculated to obtain the annual rate of erosion that located in Outlet of Watershed. Thequantity of soil loss that obtained from this study are categories as moderate erosion in the amount of130.1 tons / Ha / Year, while for the erosion hazard index included in the High category with aTolerable Soil Loss (TSL) value of 5.42, with that number then It is recommended that immediateaction be taken to reduce the potential for erosion hazard by controlling surface runoff and landengineering so as to reduce the rate of erosion.

PEMANFAATAN LIMBAH BUBUT BESI PADA BETON SERAT DITINJAU DARI KUAT TEKAN DAN KUAT LENTUR Hanggara, ST., MT, Ikrar
Prokons: Jurnal Teknik Sipil Vol. 13 No. 2 August 2019
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v13i2.194

The practice of steel lathing by students of Mechanical Engineering State Polytechnic of Malang produces an abundant amount of steel fiber waste. In this research steel fiber was utilized to substitute coarse aggregate in fiber concrete mixture. The purpose of this research is to find out the compressive and flexure strengths of fiber concrete carried out at Material Laboratory Civil Engineering Politeknik Negeri Malang, and to estimate the cost. The required data were of the results of coarse aggregate and fine aggregate tests, and physical cutting of steel lathing waste. Mix design concrete referred to SNI 03-2834-2000. Compressive strength test used 54 cylindrical specimens of Ã˜15 x 30cm varied at 0%, 5%, and 10% substitutions. Tests were carried out on concrete aged 7, 14, and 28 days. The flexural strength test used 6 beam specimens of 15 x 15 x 60cm varied at 0%, 5%, and 10% substitution. Tests were carried out on 28 days of concrete. The experiment resulted in 39.01 Mpa Â compressive strength at 0% variation; 24.54 Â Mpa Â compressive strength at 5% variation; 21.80 Mpa Â compressive strength at 10% variation; in 3.87 Mpa Â flexure strength at 0% substitution; 4.27 Mpa Â flexure strength at 5% substitution; 4.07 Mpa Â flexure strength at 10% substitution. The greatest result of flexure strength test occured at 5% variation; at Rp.940,276/m3 at 0% variation and at Rp.938,719/m3 at 5% variation or 0.2 % decrease.Â Key word : Steel lathe waste, compressive strength, flexure strength

Performa Model Tes Hidrolis Untuk PLTMH Head Rendah dengan Menggunakan Tekanan Aliran dan Kecepatan Pusaran Air (Vortex) Suhartono Suhartono; Ratih Indri Hapsari; Mohamad Zenurianto; Ikrar Hanggara
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 5, No 1 (2020): EDISI MARET 2020
Publisher : Universitas Tribhuwana Tunggadewi Malang

The development of human life is greatly influenced by the presence of electrical energi. Therefore it is necessary to conduct research related to the generation of electrical energi on a small scale (micro). One alternative electricity generation by changing the motion energi is done by utilizing the flow of water. Water flow with low discharge and head is easily found in several places, especially small rivers or irrigation channels. Utilization of low flow head and discharge is a great potential to be able to produce small-scale (micro) electrical energi. In this research, modeling of low flow and low head discharge will be carried out to find out how much potential the electrical energi can generate. There are 3 experiments namely water power, whirlpool, high fall. The variable that used in this experiment is various different head on the basin (in experiment 1; 0.2 meters, 0.3 meters, 0.4 meters, and 5 meters) to generate specific discharge that can make vortex flow and the velocity of the propeller from plunge flow. The methodes that used in this experiment is basic measurement using instrumental flow digital and setup flow using the valve. Experiment 1 with a head of 50 meters found 1,414 watts of water power with a discharge rate of 17.3 liters/minute on a 1 "diameter pipe. In experiment 2 the performance of the tool could not produce a vortex flow according to the plan, because the cross-sectional area was not comparable to the basin's outer hole and only produced vertices at a depth of 10 cm flow and produced a vortex radius of 1 cm. In Experiment 3 the performance of the tool can run well the stability of the discharge generated from the sedative bath shows that the measured flow velocity is in accordance with the theoretical flow rate conditions. Ie the speed of flow increases due to high fall.ABSTRAK Perkembangan kehidupan manusia sangat dipengaruhi oleh keberadaan energi listrik. Oleh karena itu perlu dilakukan penelitian terkait pembangkitan energi listrik dalam skala kecil (mikro). Salah satu alternatif pembangkit listrik dengan mengubah energi gerak dilakukan dengan memanfaatkan aliran air. Aliran air dengan debit dan beda tinggi (head) yang rendah sudah ditemukan di beberapa tempat, terutama sungai kecil atau saluran irigasi. Pemanfaatan debit dan beda tinggi air yang rendah adalah potensi besar untuk dapat menghasilkan energi listrik skala kecil (mikro). Dalam penelitian ini, pemodelan aliran rendah dan pelepasan head rendah akan dilakukan untuk mengetahui seberapa besar potensi energi listrik dapat dihasilkan. Ada 3 percobaan yaitu tenaga air, pusaran air, jatuh tinggi. Variabel yang digunakan dalam percobaan ini adalah berbagai kepala yang berbeda di cekungan (dalam percobaan 1; 0,2 meter, 0,3 meter, 0,4 meter dan 5 meter) untuk menghasilkan debit spesifik yang dapat membuat aliran verteks dan kecepatan baling-baling dari aliran terjun. Metode yang digunakan dalam penelitian ini adalah pengukuran dasar menggunakan instrumental flow digital dan dan setup flow menggunakan valve. Eksperimen 1 dengan kepala 50 meter menemukan 1.414 watt tenaga air dengan laju pelepasan 17,3 liter/menit pada pipa berdiameter 1". Dalam percobaan 2 kinerja alat tidak dapat menghasilkan aliran pusaran sesuai dengan rencana, karena luas penampang tidak sebanding dengan lubang luar cekungan dan hanya menghasilkan simpul pada kedalaman aliran 10 cm dan menghasilkan radius pusaran 1 cm. Dalam Percobaan 3 kinerja alat dapat berjalan dengan baik stabilitas debit yang dihasilkan dari sedative bath menunjukkan bahwa kecepatan aliran yang diukur sesuai dengan kondisi laju aliran teoritis, yaitu kecepatan aliran meningkat karena jatuh tinggi. Kata Kunci : vortex; PLTMH; model test hidrolik

Analisa Kelayakan Teknis dan Ekonomi Embung Putukrejo Kabupaten Malang Ikrar Hanggara; Harvi Irvani
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 4, No 1 (2019): EDISI MARET 2019
Publisher : Universitas Tribhuwana Tunggadewi Malang

Putukrejo Village, Kalipare Subdistrict, is one of the villages in Malang Regency which in the last 4 years has always experienced drought. The drought that occurred for 4 months in the dry month caused some problems which made the villagers panic enough. Embung is an alternative solution to overcome drought. Embung has the function of storing rainwater to be stored and used during the dry season. To build a reservoir, it is necessary to study the feasibility of both technical and economic feasibility. The results showed that the stability of the reservoir to bolster was 5.7, for stability against shear was 1.21. The B / C value is 1.1 with a benefit value of Rp 97,485,300.00 and a cost value of Rp 143,790,817.00 so that the embung can be said to be economically and technically feasible.Abstrak: Desa Putukrejo Kecamatan Kalipare merupakan salah satu desa di Kabupaten Malang yang pada 4 tahun terakhir selalu mengalami kekeringan. Kekeringan yang terjadi selama 4 bulan pada bulan kemarau menyebabkan beberapa masalah yang cukup membuat warga desa panik. Embung merupakan salah satu alternatif solusi untuk mengatasi kekeringan. Embung mempunyai fungsi menampung air hujan untuk kemudian disimpan dan digunakan pada saat kemarau. Untuk membangun embung perlu dilakukan kajian terhadap kelayakan baik kelayakan secara teknis maupun ekonomi. Hasil penelitian menunjukkan bahwa stabilitas embung terhadap guling sebesar 5.7, untuk stabilitas terhadap geser sebesar 1.21. Nilai B/C sebesar 1,1 dengan nilai manfaat sebesar Rp 97,485,300.00 dan nilai biaya sebesar Rp 143,790,817.00 sehingga embung dapat dikatakan layak secara ekonomi dan teknis.Kata kunci: embung, kelayakan, konservasi, air, kekeringan

PENDIRIAN TAMAN BACA MASYARAKAT SEBAGAI UPAYA PENINGKATAN LITERASI Sutikno; Ayisya Cindy Harifa; ikrar hanggara; Moch. Sholeh
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 1 No. 6: Nopember 2021
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v1i6.441

Pencarian informasi yang dapat dilakukan dengan mudah melalui internet menjadikan masyarakat tak lagi terbiasa membaca teks panjang secara lengkap. Menyadari hal tersebut, tim dosen dari Politeknik Negeri Malang bekerja sama dengan lembaga swadaya masyarakat LAZ YASA Malang mendirikan taman baca masyarakat. Upaya tersebut juga sekaligus mendukung Gerakan Literasi Nasional yang diinisiasi Kementerian Pendidikan dan Kebudayaan Republik Indonesia. Selain itu, dengan menambah jumlah taman baca yang dikelola secara swadaya, diharapkan Gerakan Literasi Nasional dapat lebih dirasakan manfaatnya. Masyarakat tidak lagi kesulitan untuk memperoleh bahan bacaan, sehingga diharapkan dapat terhindar dari informasi bohong atau palsu. Oleh karena itu, pendirian taman baca masyarakat ini merupakan salah satu upaya peningkatan literasi di tengah derasnya arus informasi di internet, khususnya media sosial.

Co-Authors Achendri M. Kurniawan Achendri M.Kurniawan Achmad fadli, Achmad Adriati W, Rieke Adzikirani Afifah, Nicky Rana Agus Suhardono Agustin Dita Lestari Agustin Dita Lestari, Agustin Dita Akbar, Rodly Hidayatul Almas, Hemia Hasania Andriansyah, Rizqi Ferry Ardiansyah, Rizky ATIK NOVIANTI Aulia Sayyidan, Rifadhi Ayisya Cindy Harifa Chairul Muharis Charits, Moh. Deni Putra Arystianto Dian Sisinggih Dyah Ayu Rahmawati Cupasindy Efendi, Medi Fatacahul A, Arinal Ferdiansyah, Syahrul Firdaus, Shofwan Satria Hapsari, Ratih Indri Harsanti, Winda Harvi Irvani Helik Susilo Herijanto, Pudji Irvani, Harvi Khaerudin, Dian Noorvy Kharisma Nur Cahyani Laili, Deby Rohmatul Lily Montarcih Limantara Mau, Jefrianus moch. sholeh Moch. Sholeh, Moch. Mohamad Zenurianto Muhammad Tri Aditya Nahak, Bileam Yerdan Nain Dhaniarti Raharjo Nariswari, Nawang Antonia Nawir Rasidi Nenohai, Imanuel F Pudjowati , Utami Retno Pudjowati, Utami Retno Putri, Maulid Diana R., Bobby Asukmajaya Raharjo, Nain Dhaniarti Rahma, Yusrina Adhila Ratna Ika Putri Suhartono Suhartono Supiyono . Sutikno SUTIKNO Sutikno Sutikno Udi Subagyo Ulu Mali, Maxensius Wahiddin Wahiddin Wahiddin Wahiddin, Wahiddin Winda Harsanti Zulfa, Nadhifatu Zulfatin, Salma Aida

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