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All Journal International Journal of Evaluation and Research in Education (IJERE) Inersia : Jurnal Teknik Sipil dan Arsitektur Jurnal Penelitian Pendidikan Jurnal Teknik Sipil dan Perencanaan Sainteknol : Jurnal Sains dan Teknologi MAGISTRA: Media Pengembangan Ilmu Pendidikan Dasar dan Keislaman EDUHUMANIORA: Jurnal Pendidikan Dasar Civil Engineering Journal Pendas : Jurnah Ilmiah Pendidikan Dasar Cetta: Jurnal Ilmu Pendidikan Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia EDUKATIF : JURNAL ILMU PENDIDIKAN JIKAP PGSD: Jurnal Ilmiah Ilmu Kependidikan Autentik : Jurnal Pengembangan Pendidikan Dasar Edunesia : jurnal Ilmiah Pendidikan Journal of Vocational and Career Education Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Jurnal Visionary : Penelitian Dan Pengembangan Di Bidang Administrasi Pendidikan SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA INTERNATIONAL JOURNAL OF EDUCATION, INFORMATION TECHNOLOGY, AND OTHERS CITIZEN: Jurnal Ilmiah Mulitidisiplin Indonesia Jurnal Pendidikan dan Pembelajaran MAGISTRA: Media Pengembangan Ilmu Pendidikan Dasar dan Keislaman Prosiding Seminar Nasional Teknik Sipil UMS Journal of Innovation and Research in Primary Education Proceeding of International Conference on Science, Education, and Technology Jurnal Teknik Sipil International Journal of Research in Education (IJRE) Jurnal Abdimas International Journal of Active Learning Journal of Vocational and Career Education Journal of Community Empowerment Jurnal Pendidikan dan Sosial Humaniora

Yeri Sutopo

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Author-ID : 397420

Religion Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Transportation Other

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DISTRIBUSI KONSENTRASI DAN KECEPATAN GELEMBUNG UDARA PADA KONDISI PEMASUKAN UDARA ALAMIAH (SELF AIR ENTRAINMENT) DI SALURAN CURAM Sutopo, Yeri
Jurnal Teknik Sipil dan Perencanaan Vol 14, No 1 (2012): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v14i1.14454

Abstrak: Tujuan penelitian ini adalah: (1) tersedianya hasil analisis distribusi gelembung udara di wilayah developing pada kondisi pemasukan udara alamiah (self air entrainment) di dasar saluran curam yang memiliki kemiringan 15Â° dan 20Â°; dan (2) tersedianya hasil analisis kecepatan gelembung udara di wilayah developing pada kondisi pemasukan udara alamiah (self air entrainment) di dasar saluran curam yang memiliki kemiringan 15Â° dan 20Â°. Penelitian ini menggunakan metode eksperimen yang dilaksanakan di Laboratorium Hidraulika JTSL FT-UGM. Pada penelitian ini digunakan saluran curam yang mempunyai panjang 10 m, lebar 0,2 m dengan kemiringan berubah-ubah mulai 15Â°, dan 20Âº, yang menyatu dengan dinding bak air. Penyaluran air ke dalam bak dilakukan dari tangki yang dikendalikan oleh katup. Debit adalah 0,209 m3/dt. Instrumen berupa V-Notch digunakan untuk mengkalibrasi hasil pengukuran debit. Hasil penelitian adalah: (1) persamaan distribusi konsentrasi gelembung udara pada debit Q=20,9 l/s serta kemiringan 15Â° 6,203 m dan 7,203 m di hilir inlet flum secara empirik adalah 3,134lnC+18,87 dan R2=0,955 serta z=4,121lnC+12,58 dan R2=0,935. Persamaan distribusi konsentrasi gelembung udara pada debit Q=20,9 l/s serta kemirngan 20Â° 6,203 m dan 7m 203 m di hilir inlet flum secara empirik adalah 3,749lnC+11,63 dan R2=0,878, serta z=5,376lnC+3,005 dan R2=0,909. Bentuk kurva distribusi konsentrasiÂ gelembung udara adalah logaritmik (z fungsi C); (2) berdasarkan kurva perbandingan antara konsentrasi gelembung udara teoritik dengan eksperimen pada kemiringan 15 dan 20 derajat serta di 6,203 m dan 7,203 m di hilir inlet flum, nampak bahwa secara superposisi kurva eksperimen selalu lebih landai dibandingkan dengan kurva teoritik. Kecepatan gelembung udara lebih rendah dibandingkan dengan kecepatan aliran. Makin besar luas gelembung udara dan makin besar sudut pergerakan gelembung udara cenderung makin rendah kecepatannya.

Design Flood Discharge of 50 Years in Garang River Using Nakasayu Synthetic Unit Hydrograph Method Maulana, Nadya Kintantrie; Sutopo, Yeri
Jurnal Teknik Sipil dan Perencanaan Vol 22, No 2 (2020)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v22i2.26847

Abstract: Various kinds of buildings in civil engineering require careful planning. For example, in the planning of a water building needed a method to calculate the design flood discharge before starting to plan the dimensions of the building to meet the effectiveness of the water structure. Design flood discharge can be determined using several hydrograph methods that have been used in water building planning in Indonesia. One of the popular hydrograph method used is the Nakayasu Synthetic Unit Hydrograph method. In this case, the design flood discharge is located in the Garang watershed, precisely in Semarang City, province of Central Java, using rainfall data for the past 16 years. Hydrological analysis is carried out first before determining the design flood discharge with a return period of 2, 5, 10, 25, and 50 years. The results of the design flood discharge using Nakayasu method respectively were 305,522 m3/s, 390,742 m3/s, 447,783 m3/s, 520,560 m3/s, and 574,912 m3/s.

Pengendalian Banjir Sungai Garang Melalui Upaya Peningkatan Elevasi Mercu Tanggul, Luas Penampang Basah Sungai dan Pengurangan Debit Banjir Sutopo, Yeri
Jurnal Teknik Sipil dan Perencanaan Vol 8, No 2 (2006)
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v8i2.20151

Abstract: The purposes of this research were (1) Â to explain the ability of Garang river existing condition to flood control at the 100 years flood retum period (Q100); (2) to find out the proportional and combination simultaneously efforts (technically) on flood control at Garang river that can anticipate overtopping at both, westside ang eastside of the river, due to its 100 years flood retum period. This research had use the secondary data analysis method. Data collecting were Garang river. water level elevation at Panjangan (AWLR), river cross section, Simongan weir cross section, along river, figures of AWLR instrument site and TTG level at Panjangan, also data about tidal elevation atÂ Garang river estuary. The data manually compiled, furthermore by DUFLOW The result of this research were: (1) Garang river didn't have any ability to control water level elevation at 100 years flood return period (Q100), the dam along Menorah and Panjangan to the North of Tanah Mas housing has flood run-off; (2) an effort by raising the dam crest elevation of Garang river in the amount of 20% from existing; increase river channel cross section damp Â area in the amount of 30% from existing; and decrease the 100 Years (Q100) plan discharge in the amount of 50% technically has the maximal influence about damping of the flood water level elevation.Abstrak: Tujuan penelitian ini adalah Â (1) Menjelaskan kemampuan Sungai Garang pada kondisi eksisting dalam meredam banjir pada kala ulang banjir 100 tahunan (Q100); (2) Menemukan proporsi kombinasi upaya pengendalian banjir (teknis) secara simultan yang mampu mengatasi terjadinya limpasan di atas tanggul sebelah Barat maupun Timur (over topping) karena debit banjir 100 tahunan (Q100) Â di Sungai Garang. Metode yang digunakan pada penelitian ini adalah analisis data sekunder. Data yang dihimpun adalah elevasi muka air sungai Garang di Panjangan (AWLR), tampang sungai, tampang bendung Simongan, tampang memanjang sungai, gambar letak instrumen AWLR dan ketinggian TIG di Panjangan, serta elevasi pasang surut di Muara Sungai Garang. Data-data itu dikompilasi secara manual, yang selanjutnya dimodelkan dengan aplikasi DUFLOW. Hasil penelitian ini adalah: (1) Sungai Garang tidak mempunyai kemampuan dalam meredam elevasi muka air banjir, Â tanggul di sepanjang Menoreh dan Panjangan sampai dengan ujung Utara Perumahan Tanah Mas terlimpas oleh Banjir,(2) upaya peningkatan elevasi mercu tanggul Sungai Garang sebesar 20% dari kondisi eksisting; peningkatan luas penampang basah sebesar 30% dari kondisi eksisting; dan pengurangan debit rencana seratus tahunan (Q100) sebesar 50% secara teknis mempunyai pengaruh paling maksimal terhadap peredaman elevasi muka air banjir.

PERENCANAAN SAND POCKET SEBAGAI BANGUNAN PENGENDALI ALIRAN SEDIMEN DI KALI OPAK YOGYAKARTA Sutopo, Yeri; Utomo, Karuniadi S.; Ghifari, S. Z.; -, Nurokhman
Jurnal Teknik Sipil dan Perencanaan Vol 18, No 2 (2016)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v18i2.7478

This research conducted in Opak River, in Yogyakarta. This river has broad (river flow area) 27,04 km2, and 20,11 km in length. The research objective is to make a planning about effective rainfall in 50 years and found the Opak Sand Pocket design. This research used methods with direct-survey in location, and collected secondary data from related agencies. From the data, it was obtained the value of precipitation the design, discharge flood design, dimensions of building hydrolic design (Main Dam, Sub Dam, Apron), and analysis the effectiveness of sand pocket in reducing the sediment that has happened. Based on the results of the research, discharge maximum ( Q50 ) that occurs in the river of 202,77 m3/s. So it can be calculated that sand pocket designed will have wide of apron 54,04 m, with total high of Main Dam 6 m, total high of Sub Dam 6 m, length of apron 10 m, thick of apron 0,96 m. Based on the ability of sand pocket in reducing the rate of the sediment that is happened, the building has effectiveness until 90,20 % in reducing bed load based on the calculation. Therefore, it can be argued that the building has been effective to reduce the speed of sediment occurring in Opak River.Penelitian dilakukan di Kali Opak, yang terletak di Yogyakarta. Kali Opak memiliki luas DAS 27,04 km2 , dengan panjang 20,11 km. Tujuan penelitian merencanakan besar curah hujan efektif 50 tahunan di Kali Opak dan menemukan desain Sand Pocket. Metode yang digunakan dalam penelitian adalah dengan melakukan survey langsung di lokasi, serta mengumpulkan data-data sekunder dari instansi terkait. Data-data tersebut kemudian diperoleh nilai curah hujan rancangan, debit banjir rancangan, dimensi desain hidrolis bangunan (Main Dam, Sub Dam, Apron, dan bangunan pelengkap), serta analisis efektifitas Sand Pocket dalam meredam laju sedimen yang terjadi.Berdasarkan hasil penelitian, diketahui debit maksimum (Q50) yang terjadi pada sungai tersebut sebesar 202,77 m3/s, maka dapat diketahui bahwa Sand Pocket yang direncanakan akan memiliki lebar pelimpah dengan dimensi 54,04 m, dengan tinggi total Main Dam sebesar 6 meter, tinggi total Sub Dam sebesar 4 meter, panjang Apron sepanjang 10 m, tebal 0,96 m. Bangunan tersebut cukup efektif untuk meredam laju dari sedimen yang terjadi pada Kali Opak dengan kemampuan Sand Pocket dalam mengurangi laju sedimen yang terjadi, diperoleh hasil perhitungan bahwa bangunan tersebut memiliki efektifitas hingga 90,20 % dalam mengurangi bed load.

Drainage Network System of Sekaran Village, Gunungpati District, Semarang City Utomo, Karuniadi Satrijo; Sutopo, Yeri; Adi, Muhammad Hamas
Jurnal Teknik Sipil dan Perencanaan Vol 21, No 1 (2019)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v21i1.18301

Abstract. Drainage functions to drain, deplete, remove or transport water. Generally, drainage is defined as a series of water facility used to reduce and/or remove excess water from an area or land, so that the land can be functioned optimally. Drainage is also realized as an effort to control the quality of groundwater in relation to salinity. The case study was carried on in Sekaran Village, Gunungpati District, Semarang City. The area size of Sekaran Village is 6,21 kmÂ². According to the writing method, the author used tools and materials required in this research. The tools used were a roll meter and Arcmap software as a medium for data-processing, and the materials taken was data regarding information about the condition of Sekaran Village in the extent of topographic maps, rainfall data. The method of data calculation used manual calculations in accordance with the rational method to figure out the rain discharge, and the manning formula for channel flowrate. The numbers of design rainfall for 5 years and 10 years was 169,365 mm and 171,502 mm; while the design discharge with return period of 5 and 10 years, for example, in channel 1 was branch 1 was of 0,6772 mÂ³/s and the main channel was 5,7910 mÂ³/s; The economic channel dimensions for the main channels 1 and 4 were the base width B = 1,596 m â‰ˆ 1.6 m and the water height h = 0,796 m â‰ˆ 8 0,8 m, the cross section was square.

The Development of Vocational Career Guidance Module in Food Serving Process to Improve Career Decision Making Ability of Vocational High School Students Istianingsih, Yen Ruri; Khumaedi, Muhammad; Sutopo, Yeri
Journal of Vocational and Career Education Vol 6, No 2 (2021): December 2021
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v6i2.36047

Vocational high school is an educational institution that aimed to create graduates who have good quality and competence in a certain field. The students need to be provided career insight from the beginning of entering the school. The vocational guidance module is crucial for the students. The research study consisted of 1) How is the development of vocational career guidance in the food serving process improve the career decision-making ability of vocational high school students? 2) What is the feasibility of the module? 3) how is the practicality of the module? 4) how is the effectiveness of the module?. This research applied Research and Development method (RD). The present study used the ADDIE model consisting of Analysis, Design, Development, Implementation, and Evaluation. The research analysis unit was a vocational career guidance module on the food serving process. This research used some instruments to gain the data: 1) assessment sheets of vocational career guidance modules; 2) questionnaires on the practicality of modules, and (3) questionnaires to measure student career decision making. The validity of the assessment sheet is obtained from the calculation of the CVR and its reliability using the ICC formula. The questionnaire validity applied point biserial, while the reliability questionnaire used KR20 formulas. The result of the feasibility test, practicality test, and effectivity test based on media and material experts of the developed module was feasible. Furthermore, the user product like teachers and students stated that the module was very practical, quite effective, and significant to improve the career decision making of vocational high school (SMK) Culinary Art.

Construct Validity and Reliability of Attitudes towards Chemistry of Science Teacher Candidates Woro Sumarni; Endang Susilaningsih; Yeri Sutopo
International Journal of Evaluation and Research in Education (IJERE) Vol 7, No 1: March 2018
Publisher : Institute of Advanced Engineering and Science

Developing students' positive attitude toward learning is one of the important things, because some researchers mention that attitudes toward the subjects are related to academic achievement. Teachers, in the implementation of learning can evaluate attitudes toward the subjects, in order to know how students' attitude toward learning that is/has been going on. Therefore, an attitude assessment is required for valid, reliable and practical learning. The purpose of this research is to develop a Likert scale type questionnaire that can measure students' attitudes toward chemistry. In this study initially has been compiled as many as 43 items. The items in the present scale were adapted from the Test of Science-Related Attitudes (TOSRA) and Attitudes towards Chemistry Lessons Scale (ATCLS). After the contents validation of the questionnaire by the expert, the questionnaire is tested on 245 college students. Determination of construct validity which is conducted with exploratory factor analysis obtained 32 items valid question. The result of factor analysis shows that the scale has nine factors that explain 62.105% of the total variance. In addition, it shows the finding of 'reliability coefficient (Cronbach' alpha) of 0.91. The results obtained showed that it has obtained valid and reliable questionnaires as a measuring tool that can be used to determine student attitudes toward chemistry in chemistry foodstuffs lectures.

Defleksi Lateral Tiang Tunggal Akibat Beban Lateral pada Tanah Pasir Ahmad Fahrul Lafit; Togani Cahyadi Upomo; Yeri Sutopo; Agung Sutarto
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 17, No 2 (2021): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v17i2.27092

ABSTRACTOne type of deep foundation is a pile foundation that is designed and has the ability to withstand axial, lateral, and uplift loads. This analysis aims to determine and compare deflections that occur on poles that are in granular soil by using the manual calculation of the p-y curve method with finite difference approaches and calculations with Allpile and Plaxis software. The analysis was conducted three times, namely on a 60 cm diameter pole at a depth of 10 meters embedded pile with lateral loads of 25 kN, 50 kN, and 75 kN. The data used to calculate the lateral deflection of the pole is secondary data. Lateral deflection analysis using Plaxis software with a load of 25 kN, 50 kN, and 75 kN obtained lateral deflection of the uppermost pole respectively 0.159 cm, 0.324 cm, and 0.545 cm. Lateral deflection analysis using Allpile software with a load of 25 kN, 50 kN, and 75 kN obtained lateral deflection of the uppermost pile by 0.08 cm, 0.16 cm and 0.29 cm. While the results of the lateral deflection analysis of the manual calculation of the p-y curve method with a finite different up to 25 kN, 50 kN, and 75 kN loads obtained lateral deflection of the uppermost pile respectively by 0.60 cm, 0.12 cm and 0.179 cm. So the approximating calculations are manual calculation of the p-y curve method with calculations with Allpile software. Nash-Sutcliffe Efficiency (NSE) value calculation of the p-y curve method with plaxis software at lateral load 25 kN, 50 kN, 75 kN obtained consecutive NSE values of -5,946, -6,439, dan -30,118 all of which have unsatisfactory performance rating. Different with curve p-y method compared with Allpile that has consecutive NSE values of 0,876, 0,876, 0,876, dan 0,605 all of which have very good performance rating. ABSTRAKSalah satu jenis fondasi dalam adalah fondasi tiang yang didesain dan memiliki kemampuan untuk menahan beban aksial, lateral, dan uplift. Analisis ini bertujuan untuk mengetahui dan membandingkan defleksi yang terjadi pada tiang yang berada pada tanah granuler dengan menggunakan perhitungan manual metode kurva p-y dengan pendekatan beda hingga dan perhitungan dengan software Allpile dan Plaxis. Analisis dilakukan tiga kali percobaan yaitu pada tiang berdiameter 60 cm pada kedalaman tiang tertanam 10 meter dengan beban lateral sebesar 25 kN, 50 kN, dan 75 kN. Data yang dipakai untuk menghitung defleksi lateral tiang adalah data sekunder. Analisis defleksi lateral menggunakan software Plaxis dengan beban 25 kN, 50 kN, dan 75 kN didapatkan defleksi lateral tiang paling atas berturut-turut sebesar 0,159 cm, 0,324 cm, dan 0,545 cm. Analisis defleksi lateral menggunakan software Allpile dengan beban 25 kN, 50 kN, dan 75 kN didapatkan defleksi lateral tiang paling atas berturut-turut sebesar 0,08 cm, 0,16 cm, dan 0,29 cm. Sedangkan hasil analisis defleksi lateral perhitungan manual metode kurva p-y dengan pendekatan beda hingga dengan beban 25 kN, 50 kN, dan 75 kN didapatkan defleksi lateral tiang paling atas berturut turut sebesar 0,60 cm, 0,12 cm, dan 0,179 cm. Jadi perhitungan yang saling mendekati adalah perhitungan manual metode kurva p-y dengan perhitungan dengan software Allpile. Perhitungan nilai Nash-Sutcliffe Efficiency (NSE) metode kurva p-y dengan software Plaxis pada beban lateral 25 kN, 50 kN, dan 75 kN didapatkan nilai NSE berturut-turut sebesar -5,946, -6,493, dan -30,118 yang ketiganya memiliki rating performa tidak memuaskan. Berbeda dengan metode kurva p-y dibanding dengan Allpile memiliki nilai NSE berturut-turut sebesar 0,876, 0,876, dan 0,605 ketiganya mempunyai rating performa yang sangat baik.

UJI MODEL HIDROLIK FISIK (UMH-FISIK) PELIMPAH BENDUNGAN CIBEET DI KABUPATEN BOGOR Riezky Tazkia Pratiwi; Yeri Sutopo
Citizen : Jurnal Ilmiah Multidisiplin Indonesia Vol. 2 No. 2 (2022): CITIZEN: Jurnal Ilmiah Multidisiplin Indonesia
Publisher : DAS Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53866/jimi.v2i2.71

Among the vital components of a dam is the spillway structure. Therefore, the building requires testing of physical hydraulic models, one of which is carried out at the Water Hydraulics and Geotechnical Center laboratory. This physical hydraulic model test study aims to analyze the hydraulic behavior of the dam spillway, mainly the discharge curve and flow elevation, average flow velocity, flow direction pattern, and hydrostatic pressure. This study uses a physical hydraulic model (modeling), which is a research method that focuses on 3-dimensional physical modeling and using the initial design from the consultant (series 0) by modeling some of the core parts of the dam such as spillway structures, dam body structures, launch channels, energy dampers, some of the contours of the river upstream, and some of the contours of the river downstream. The research instrument used were: Thompson discharge measuring instrument, level meter as a means of predicting water level elevation, current meter velocity measuring instrument, floating object as a research aid, a piezometer to determine hydrostatic pressure. The results showed that the spillway capacity could drain the PMF return period discharge (QPMF = 2091,75 m3/s) with the available guard height of 1,25 m, meeting the planning criteria of 0,75 m. At the Q2th and Q25th discharges, there is no hydraulic jump in the energy reducer and leads directly to the transition channel. In contrast, at the Q100th and Q1000th discharges, a hydraulic jump occurs in the energy reducer. The flow velocity, downstream of the spillway, especially on the left side of the guide wall, was recorded at a relatively high velocity, allowing turbulence to occur. The flow direction pattern that occurs upstream of the reservoir is reasonably even towards the spillway, and there is no crossflow. There is negative pressure at the piezometer point P5 with a 2-year return discharge of -0,25 N/m2, a 25-year return discharge of -0,25 N/m2, and a 100-year return discharge of -0,15 N/m2, which is still within the safe limits and does not exceed the allowable provisions, namely -1.00 m (for pairs) and -4.00 m (for concrete).

Pengaruh Pemilihan Kala Ulang Debit Banjir Rancangan Metode HSS Nakayasu Terhadap Dimensi Sand Pocket di Gunung Merapi Imam Sudrajad; Yeri Sutopo; Agung Sutarto
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 5, No 1 (2020): EDISI MARET 2020
Publisher : Universitas Tribhuwana Tunggadewi Malang

Design flood discharge has become an important parameter in hydraulic construction design planning. When analyzing it, return period selection is crucial because it will determine the amount of design flood discharge. The return period selection is adjusted to the characteristics of the Watershed (DAS). The Sand Pocket planning location is in Woro River, Klaten, Central Java. The unavailability of design flood discharge data at the observation site resulted in the design flood discharge analysis being carried out. This study focuses on comparing the magnitude of design flood discharges from different return periods, namely Q5th, Q10th, Q25th, Q50th, and Q100th. After the flood discharge is obtained, it is utilized to calculate the dimensions of the Sand Pocket construction. Each return period used in this study produced different dimensions of the building in several parts. This analysis shows the different dimensions of the building due to differences in flood discharge generated, namely the Main Dam and Sub Dam parts including effective height, upstream slope (m), flow height above the lighthouse, freeboard, foundation depth, and base. In the part of apron, there are differences of floor length and thickness dimension. The difference dimensions also appeared on the upstream side slope of Main Dam and Sub Dam. This return period selection determines the amount of the design flood discharge that will affect the dimensions of the Sand Pocket that will be planned.

Co-Authors Abdul Malik Ade Novi Nurul Ihsani Adhi Kusumastuti Adi, Muhammad Hamas Adi, Muhammad Hamas Adisasongko, Nur Aentika, Ika Nisa Agung Sutarto Agus Yuwono Agus Yuwono Agustina, Rina - Ahmad Fahrul Lafit Alfian, Rangga Dino Ali Sunarso Amanda, Nafisa Yustika Andhika, Pedro Aprilian, Johan Andric Arief Yulianto Arif Hidayat Aris Budiyanto Azizi, Muhammad Aqil Bambang Subali Bambang Yulistyanto Basyirun , Basyirun Budi Wignyosukarto Cahyani, Yustin Sagita Dwi cahyanti, Windi Decky Avrilianda DENI SETIAWAN Dewa, Pramaditya Putra Komala Dewi Kartikasari Dian Priambudi Djuniadi Djuniadi Dwi Handoko Dwi Setiani Dwi Widjanarko Dwi Wijanarko Edy Siswanto Eka Sari Pancasilawati Eko Supraptono Ellianawati, Ellianawati Ely Rudyatmi, Ely Endang Susilaningsih Enggar Jati Pratikto Fajar Haryadi Fauzi, Yoyon Fernandez, Yulius Jimmi Fitra, Kurniati Rezki Fuad, Muhammad Nur Handayani, Sri Harianingsih, Harianingsih Harianingsih, Tri Haryono Haryono Hidayattullah, Ardhana Luthfi Ida Zulaeha Imam Sudrajad Inggit Prasetyo Utami Istianingsih, Yen Ruri Istiarto Istiarto Jerry Puspitasari Jihanifa, Firda Afita Joko Sutarto Karend, Khanza Azizah Abas Karuniadi S. Utomo, Karuniadi S. Karuniadi Satrijo Utomo Karuniadi Satrio Utomo Khumaedi, Muhammmad Kosasih, Yeny Kuntjoro, Yoh. Sasmito Kurnianto, Fahrizal Joko Kurniasari, Winda Kurniawan, Galang Wahid Kurniawan, Yunda Latifah, Ana M. Burhan Rubai Wijaya Madiastuti, Sri Maulana, Nadya Kintantrie Mohamad Irfan, Mohamad Muhammad Arizal Ikhsan Matoka Muhammad Khumaedi Mushthofaina Al Akhyar, Zidane Naufal Tinov Noor Hudallah Noviyanti Noviyanti Nuni Widiarti Nur Qudus Nurfitriyani, Sintya Andryati Nurokhman -, Nurokhman Nurrokhman , Tedi Nurul Fadhilah Nurvitasari, Fitria Priambudi, Dian Priyatna, Bambang Sugeng Puji, Nunuk Riza Purwismaningsih , Purwismaningsih PUTRI, CHATERINE PRATAMI Putriana, Megawati Eko Ramadhan, Juniawan Renanda Anggriaswati Riezky Tazkia Pratiwi Rini Kusumawardani, Rini Riski, Via Rodia Syamwil Rohman, Shohihatur S, Salam Sofan S. Z. Ghifari, S. Z. Sahmanita, Riqqah Salsabila Samsudi . Samsudi Samsudi Samsudi Samsudi Samsudin Anis Sandra Titihalawa Saptariana - Sarwi Setiyanto, Denny Firman Shagira, Rizky Yanda Shofa Rahayu Siti Zulaikhah Sonhaji Sonhaji Sri Endah Wahyuningsih Sri Sumartiningsih St. Nurjihan Supraptono , Eko Suprayogi, Sidiq Supriyadi Supriyadi Supriyadi Supriyadi Surya, Rizky Gheni Praba Surya Susilo, Budhi Suwanda, Adhi Suwito Eko Pramono SYAIKHONI, AHMAD Tamamudin, Mukhammad Taripah, Taripah Togani Cahyadi Upomo, Togani Cahyadi Tonioka, Nadya Hesty Tukiman Tukiman Ulfah Mediaty Arief Utomo, Eko Prasetyo Wahyu Lestari Wardani, Aditya Wasino Wasino Widiari, Nuni Wirawan Sumbodo Woro Sumarni Y primadiyanto Yuliyani, Dewi Zakiyyah, Hana Zidni, Mukhammad Irfan

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