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Journal articles on the topic 'USBR'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Schaack, Jerome M. "USBR canal lining experience." Irrigation and Drainage Systems 1, no. 1 (1986): 93–99. http://dx.doi.org/10.1007/bf01422980.

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2

Bennett, Sean, Natalie Coburn, Calvin Law, et al. "The benefits of upfront primary tumor resection for metastatic small bowel neuroendocrine tumors: A population-based analysis." Journal of Clinical Oncology 38, no. 4_suppl (2020): 620. http://dx.doi.org/10.1200/jco.2020.38.4_suppl.620.

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620 Background: Early resection of the primary tumor in metastatic small bowel neuroendocrine (SB-NET) remains controversial. Conflicting data exist regarding its clinical and survival benefits. We compared the long-term outcomes of upfront small bowel resection (USBR) and non-operative management (NOM) for metastatic SB-NETs. Methods: A population-based analysis of patients with SB-NET metastatic at diagnosis between 2001-2017 was conducted by linking administrative datasets. USBR was defined as resection within 6 months of diagnosis. Primary outcomes were subsequent unplanned acute care admi

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3

Hunt, Sherry L., and Kem C. Kadavy. "USBR Type III and Type IV Stilling Basins and Rock Aprons Associated with Stepped Chutes." Applied Engineering in Agriculture 34, no. 2 (2018): 389–94. http://dx.doi.org/10.13031/aea.12638.

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Abstract. Stilling basins are commonly used as energy dissipators for structural chutes. Classical research conducted by scientists of the U. S. Bureau of Reclamation (USBR) led to the development of design criteria for a variety of stilling basin configurations as the outlet works for smooth chutes, but little is known about the performance of these dissipators when paired with stepped chutes. Research at the USDA-ARS Hydraulic Engineering Research Unit (HERU) in Stillwater, Oklahoma, was conducted on USBR Type III and Type IV stilling basins with rock aprons located downstream of a near prot

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Gilang Idfi, Umboro Lasminto, Anak Agung Gde Kartika. "Modification of USBR Type III Stilling Basin Using a Stepp Stair Model to Improve Hydraulic Performance and Energy Dissipation Effectiveness." Tuijin Jishu/Journal of Propulsion Technology 45, no. 01 (2024): 5403–21. http://dx.doi.org/10.52783/tjjpt.v45.i01.5648.

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This research examines common problems in open and closed transition channels, including hydraulic instability due to changes in channel shape that cause cross flow at constrictions or widenings. Closed channels experience turbulence at the outlet, require additional blocks to balance the flow, and can cause damage in downstream rivers due to suboptimal energy absorbers, requiring annual maintenance. Energy dissipators handle energy loss due to elevation differences. The research method involved modeling and testing at the ITS Water Resources and Ocean Engineering Laboratory with several alter

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5

H. L. Tiwari, M S Hora, and Bikram Prasad. "Development of Stilling Basin Models with Appurtenances." International Journal of Engineering and Management Research 12, no. 5 (2022): 1–5. http://dx.doi.org/10.31033/ijemr.12.5.1.

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This research paper describes about the experimental work leading to the sustainable hydraulic structures by developing new stilling basin model as compared to USBR VI stilling basin model for pipe outlet using with sills. The experimental study was carried out for three Froude numbers namely 3.85, 2.85 and 1.85 for non-circular pipe outlet. Performance index (PI) has been used to evaluate the performance of stilling basin models tested using same sand base material and test run time. The scour pattern was measured for each test run and flow pattern was also observed. After 21 tests runs, it w

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6

Khadka, Dak. "Experimental Study on USBR Type Stilling Basin Design." International Journal of Social Sciences and Management 11, no. 1-2 (2024): 17–26. http://dx.doi.org/10.3126/ijssm.v11i1-2.62867.

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Energy of water is to be dissipated forming hydraulic jump. The strength of jump depends on initial Froude number. The length of jump depends on the alternate depths. . This study is purposed to examine the effect of upstream face slope of weir in three models at vertical faced ogee shape weir, 60 degree slope ogee shape and 45 degree slope ogee shape weir in the case of jump formation at downstream side. The experiments were conducted in three discharge variations of magnitude 100 cm3/sec, 150cm3/sec and 200cm3/sec. The depths and velocity at upstream, at crest, at toe and at tail location we

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Olii, Chiquitha Puspitha Puteri, Komang Arya Utama, and Rawiyah Husnan. "Prediksi Angkutan Sedimen Melayang pada Sungai Bolango Di Provinsi Gorontalo." Research Review: Jurnal Ilmiah Multidisiplin 4, no. 1 (2025): 320–28. https://doi.org/10.54923/researchreview.v4i1.148.

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Bolango River is a river that has potential as a source of raw water and irrigation for communities in Gorontalo Province. Sedimentation in the upstream and downstream of the river causes a decrease in river function. This research aims to predict the amount of suspended sediment transport discharge in Bolango River which is compared with the results of calculations using empirical methods. The calculation method used is the calculation of the instantaneous method (USBR) which is compared with three empirical methods namely Einstein, Lane and Kalinske, and Chang, Simon and Richardson by taking

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8

Sadeghian, Mohammad Sadegh, Mohammad Heydari, Mohammad Noori, Faegheh Ebrahimi, and Ahmad ShahiriParsa. "Evaluating the Suspended Sediment of Mahabad Dam Using Statistical Methods." Journal of river engineering 2, no. 7 (2015): 10. https://doi.org/10.5281/zenodo.18260.

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Dam construction is one of the methods for storing surface water. Estimating the service life and economic efficiency of dam is one of the most important cases in estimating the design of it. The most important problem that threatens the useful life of the dam is input sediment to reservoir. Life expectancy of a dam reservoir is measured with respect to the incoming sediments. Estimation of suspended sediment in rivers plays an important role in estimating the useful life of dams. Many methods such as statistical methods USBR (United States Bureau of Reclamation) and FAO (Food and Agriculture

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9

Saleh, Layla A. M., and Saleh I. Khassaf. "Evaluating the Hydraulic Performance of USBR II Stilling Basin with Rough Bed." Tikrit Journal of Engineering Sciences 31, no. 3 (2024): 93–104. http://dx.doi.org/10.25130/tjes.31.3.9.

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Stilling basins are built in conjunction with dams, weirs, and gates to dissipate the high kinetic energy of incoming flow and prevent severe scouring of the downstream riverbed. Dissipation of this high energy can be achieved through forming a hydraulic jump. The hydraulic jump features, including the relative length, ratio of sequent depth, and energy dissipation, are utilized as criteria to evaluate the efficiency of the stilling basin operation. The present study involved conducting experimental and numerical tests to evaluate the performance of the USBR II stilling basin downstream of an

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10

Padulano, Roberta, Oreste Fecarotta, Giuseppe Del Giudice, and Armando Carravetta. "Hydraulic Design of a USBR Type II Stilling Basin." Journal of Irrigation and Drainage Engineering 143, no. 5 (2017): 04017001. http://dx.doi.org/10.1061/(asce)ir.1943-4774.0001150.

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11

Zaffar, Muhammad Waqas, Ishtiaq Haasan, and Abdul Razzaq Ghumman. "Performance Evaluation of Different Stilling Basins Downstream of Barrage Using FLOW-3D Scour Models." Hydrology 10, no. 12 (2023): 223. http://dx.doi.org/10.3390/hydrology10120223.

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The present study investigated the performance of three different stilling basins, i.e., modified United State Bureau of Reclamation (USBR) Type III, USBR Type II, and wedge-shaped baffle blocks (WSBB), using FLOW-3D scour models. Field data of the riverbed profile are employed to validate the present models. After comparison, the results of statistical indices, i.e., coefficient of determination (R2) and Nash–Sutcliffe model efficiency coefficient (NSE), indicated that the Renormalization Group (RNG-K-ϵ) showed good agreement with the field data, with R2 and NSE values of 0.9094 and 0.896, re

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12

Bijankhan, Mohammad, and Elham Darvishi. "No-choke flow in USBR standard horseshoe channel cross-section." Proceedings of the Institution of Civil Engineers - Water Management 164, no. 6 (2011): 295–301. http://dx.doi.org/10.1680/wama.2011.164.6.295.

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13

Karimi Chahartaghi, Morteza, Sohrab Nazari, and Mohsen Solimani Babarsad. "Investigating the Effects of the Block Geometries and Sidewall Divergences on the Local Scour Downstream of Baffled Chute Spillways." Advances in Civil Engineering 2020 (October 14, 2020): 1–14. http://dx.doi.org/10.1155/2020/2978602.

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Due to the lack of any specific study about the sidewalls and other blocks’ changes in the case of hydraulic and scour downstream, the present study was conducted to investigate this issue. For this purpose, drainage projects and spillway chutes, as well as many baffle block chutes, were designed and constructed with the parallel sidewalls and trapezoidal shape using the U.S. Bureau of Reclamation (USBR) instructions. Three divergence ratios of b 1 / b 2 = 1.45 , 1.75 , and 2.45 , a parallel sidewall of b 1 / b 2 = 1 , and also three geometry blocks including trapezoidal USBR, trihedral, and s

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14

Rice, Charles E., and Kem C. Kadavy. "HGL Elevation at Pipe Exit of USBR Type VI Impact Basin." Journal of Hydraulic Engineering 117, no. 7 (1991): 929–33. http://dx.doi.org/10.1061/(asce)0733-9429(1991)117:7(929).

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15

Komalasari, Amelia Citra Mulya, and Sulwan Permana. "Analisis Kolam Olak Bendungan Leuwikeris Kabupaten Ciamis-Tasikmalaya." Jurnal Konstruksi 22, no. 1 (2024): 31–39. http://dx.doi.org/10.33364/konstruksi/v.22-1.1346.

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Bendungan Leuwikeris adalah bendungan yang dibangun di dua kabupaten yaitu Kabupaten Ciamis dan Kabupaten Tasikmalaya. Salah satu bangunan dari bendungan adalah kolam olak. Kolam olak dibangun untuk meredam energi yang terkandung dalam aliran dengan memanfaatkan loncatan hidraulis dari suatu aliran yang berkecepatan tinggi. Jenis kolam olak yang ada pada Bendungan Leuwikeris ini adalah tipe USBR II dimana memiliki nilai bilangan Froude lebih dari 4,5 dan debit lebih dari 60m³/detik. Penelitian yang dilakukan kali ini, menghitung besaran nilai kehilangan energi pada kolam olak Bendungan Leuwike

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16

Crisna, Ainul, Very Dermawan, and Linda Prasetyorini. "Kajian Perilaku Aliran pada Pelimpah Samping Bendungan Sepaku Semoi Kabupaten Penajam Paser Utara Provinsi Kalimantan Timur dengan Skala 1:50." Jurnal Teknologi dan Rekayasa Sumber Daya Air 2, no. 2 (2022): 1–187. http://dx.doi.org/10.21776/ub.jtresda.2022.002.02.15.

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Untuk memenuhi kebutuhan air baku di IKN (Ibu Kota Negara) di Kabupaten Panajem Paser Utara maka dilakukan pembangunan Bendungan Sepaku Semoi. Studi ini bertujuan untuk mengetahui perilaku hidrolika uji model fisik Bendungan Sepaku Semoi dengan skala 1 : 50. Kajian hidrolika dilakukan pada pelimpah, saluran samping, saluran transisi, saluran peluncur, peredam energi, dan hilir peredam energi yang yang didasarkan pada hasil pengujian model fisik sebagai kontrol terhadap pendekatan hitungan. Dalam kajian hidrolika pada model fisik, analisis profil muka air, debit yang dikaji yaitu Q100th , Q10

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17

Othman, Faridah, Mohammad Sadegh Sadeghian, Faegheh Ebrahimi, and Mohammad Heydari. "A Study on Sedimentation in Sefidroud Dam by using Depth Evaluation and Comparing the Results with USBR and FAO methods." International Proceedings of Chemical, Biological and Environmental Engineering 51 (June 3, 2015): 6. https://doi.org/10.5281/zenodo.18261.

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One of the fundamental issues with the operation of surface water resources is erosion, and sediment transport. Reducing the reservoir’s useful life and declining the reservoir storage are subsequences of erosion and sediment transport. These natural events occur in different geographical circumstances. Since the major part of the watershed sedimentation consists of suspended sediments, the amount of suspended loads, has a special priority. (Kişi 2007) Determining the amount of erosion or sediment transportation is practically very difficult. So far different methods have been proposed a

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18

Djunur, Lutfi Hair. "Study On Scouring and Protection of USBR-III Type Downstream of Spillway." Jurnal Teknik Sipil dan Perencanaan 24, no. 1 (2022): 62–71. http://dx.doi.org/10.15294/jtsp.v24i1.34196.

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Abstract. In the downstream part of the spillway building, especially in the flood way, occurs phenomenon of changing flow conditions from super critical to sub critical which causes a hydraulic jump and used by energy absorbers to reduce flow energy. The hydraulic jump in the floodway causes scouring of the bottom, particularly in the unprotected downstream spillway. Using 3 different dimensional baffle block models provides three different discharge variations in four flow simulations. Based on the results of the analysis and planning of the baffle block, it is found that the effectiveness i

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19

Nasiri, Keyvan, Mohammad Reza Kavianpour, and Siavash Haghighi. "The Baffle Blocks Effects of Pressure Characteristics on USBR III Basin Floor." Applied Mechanics and Materials 212-213 (October 2012): 821–25. http://dx.doi.org/10.4028/www.scientific.net/amm.212-213.821.

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The principle of energy dissipation in stilling basin is based on hydraulic jump formation. Due to the inherent fluctuating characteristic of the hydraulic jump, basin floor is subjected to variations of pressure, resulting in unstableness due to uplift forces. To increase the efficiency of the stilling basins and improve the energy dissipation rate, one or two rows of baffle blocks are applied on the basin floor. Causing a forced hydraulic jump, tension and compression forces are exerted by pressure fluctuations of rotating roller zone of hydraulic jump. In this investigation, to observe the

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20

Mousavi, Seyed Nasrollah, and Daniele Bocchiola. "A Novel Comparative Statistical and Experimental Modeling of Pressure Field in Free Jumps along the Apron of USBR Type I and II Dissipation Basins." Mathematics 8, no. 12 (2020): 2155. http://dx.doi.org/10.3390/math8122155.

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Dissipation basins are usually constructed downstream of spillways to dissipate energy, causing large pressure fluctuations underneath hydraulic jumps. Little systematic experimental investigation seems available for the pressure parameters on the bed of the US Department of the Interior, Bureau of Reclamation (USBR) Type II dissipation basins in the literature. We present the results of laboratory-scale experiments, focusing on the statistical modeling of the pressure field at the centerline of the apron along the USBR Type I and II basins. The accuracy of the pressure transducers was ±0.5%.

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21

Bensko, Kathleen, Bryan K. Simpson, Thomas A. Terry, and Scott R. Walker. "Best Practices for Planning and Implementing Site Investigations at Federally Owned or Regulated Dams and Levees." Environmental & Engineering Geoscience 29, no. 1 (2023): 17–39. http://dx.doi.org/10.2113/eeg-d-22-00019.

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Abstract Management, regulation, and review of the planning and execution of intrusive site investigations vary within each of four federal organizations involved with dam and levee safety based upon various roles and responsibilities. The U.S. Bureau of Reclamation (USBR), the Tennessee Valley Authority, and the U.S. Army Corps of Engineers (USACE) are owner-operators of dams that serve multiple purposes, including flood control, hydropower, water supply, and navigation. The Federal Energy Regulatory Commission (FERC) regulates and inspects non-federal hydropower dams, and develops and implem

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22

Soori, Saba, Hamidreza Babaali, and Nasim Soori. "An Optimal Design of the Inlet and Outlet Obstacles at USBR II ‎Stilling Basin." International Journal of Science and Engineering Applications 6, no. 5 (2017): 134–42. http://dx.doi.org/10.7753/ijsea0605.1001.

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23

Gupta, Shreya, Anjali Thakur, Nirupama Sahu, and Varsha Rani Painkra. "An Optimal Design of the Inlet and Outlet Obstacles at USBR II ‎Stilling Basin." International Journal of Science and Engineering Applications 6, no. 6 (2017): 150–53. http://dx.doi.org/10.7753/ijsea0606.1001.

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Dermawan, V., Suhardjono, L. Prasetyorini, and S. Anam. "Hydraulic model experiment of energy dissipation on the horizontal and USBR II stilling basin." IOP Conference Series: Earth and Environmental Science 930, no. 1 (2021): 012029. http://dx.doi.org/10.1088/1755-1315/930/1/012029.

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Abstract Flow conditions on overflow systems can result in construction failure, mainly due to the high flow energy. Stilling basin at downstream of the spillway is useful for reducing flow energy. It can reduce the destructive force of water flow. Controlling the hydraulic jump is an important part that includes the jump’s energy, length, and height. The physical hydraulic model was carried out with several series, by making a series of bottom lowering of horizontal and USBR II stilling basin. The experimental study is expected to represent flow behavior in the overflow system regarding flow

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Naser, Ahmed Sami, Nezar Hassan Mohamed, and Wisam Abdulabbas Abidalla. "Modification of Impact Stilling Basin VI Pipe Outlet for High-Velocity Flow." Journal of Advanced Research in Numerical Heat Transfer 34, no. 1 (2025): 88–106. https://doi.org/10.37934/arnht.34.1.88106.

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The primary purpose of stilling basins in a hydraulic structure is to attenuate the kinetic energy of flowing water in order to prevent erosion downstream of the structure, which might potentially result in its failure. The USBR VI stilling basin is an early basin designed specifically for dissipating pipe outlet flow. This study assessed the impact of adding a sill to a type VI stilling basin on the dissipation of energy by evaluating eight distinct models. The purpose of adding the sill is to increase energy dissipation and thus reduce scouring at the downstream of the basin. The aim of this

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26

Nettleton, Peter C., and John A. McCorquodale. "Radial flow stilling basins with baffle blocks." Canadian Journal of Civil Engineering 16, no. 4 (1989): 489–97. http://dx.doi.org/10.1139/l89-079.

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A total of 120 tests of forced radial flow hydraulic jumps have been analyzed in order to develop curves and equations for the design of radial stilling basins. The jump depth, the water surface profile, wave amplitudes, the allowable flare angle, and the jump length are defined in terms of entrance conditions, the baffle position, and the baffle height. An example design is given and compared with a USBR (U.S. Bureau of Reclamation) Type III stilling basin. Key words: forced hydraulic jump, radial flow, design, stilling basins, baffles, radial hydraulic jump, circular hydraulic jump.

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27

Egop, S.E. "Comparison between BRE and USBR Methods of Concrete Mix Design using SDA as partial replacement for Fine Aggregate." Journal of Advanced Cement & Concrete Technology 6, no. 3 (2023): 27–38. https://doi.org/10.5281/zenodo.10183649.

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<i>The fundamental objective of this research was to empirically analyse and compare between the Building Research Establishment (BRE) and the United States Bureau of Reclamations (USBR) methods of concrete mix designs using uncrushed coarse aggregate at various target strength which evokes three different mix ratios 1:2.05:2.95/0.54, 1:2.23:3.21/0.58 and 1:2.41:3.47/0.62 for the BRE method ; 1:2.41:3.36/0.59, 1:2.37:3.29/0.38 and 1:2.28:3.17/0.56 for the USBR method  and to determine how the different design methods affect overall results as to tests on the freshly prepared concrete to m

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28

Ihsan, M. Kabir. "PENGARUH BENTUK MERCU BENDUNG TERHADAP TINGGI LONCAT AIR KOLAM OLAK MODEL USBR IV (SIMULASI LABORATORIUM)." Teras Jurnal 7, no. 1 (2018): 173. http://dx.doi.org/10.29103/tj.v7i1.124.

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<p>Kolam olak Model USBR IV adalah salah satu jenis kolam olak yang sering digunakan pada sebuah bendung. Tinggi loncat air dalam kolam olakan direncanakan untuk meredam air akibat terjunan. Perhitungan perencanaan menggunakan rumus-rumus empiris yang telah lazim, dalam hal ini dipakai metodeVen Te Chow, 1989. Untuk membuktikan rumus-rumus tersebut dicoba melakukan simulasi laboratorium dalam beberapa model, debit yang berbeda, kemiringan yang berbeda. simulasi menggunakan flume yaitu satu set model saluran terbuka dengan dinding tembus pandang yang diletakkan pada struktur rangka kaku,

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29

Madueke, C. O., I. K. Okore, E. C. Maduekeh, et al. "Characterization and land evaluation of three tropical rainforest soils derived from the coastal plain sands of southeastern Nigeria." Agro-Science 20, no. 2 (2021): 25–36. http://dx.doi.org/10.4314/as.v20i2.5.

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Soils on coastal plain sands of southeastern Nigeria have hitherto been referred to as fragile sandy and acidic soils of low base saturation, cation exchange capacity (CEC) and fertility, as evidenced by the extensive land degradation evident in the region. This underscores the need for the characterization of the soils for sustainable use. Three profile pits were therefore dug on the upper, middle and bottom slopes of three towns in the rainforest belt underlain by the coastal plain sands. The results showed that the topsoil of the soils was generally sandy, with relatively more clayey subsoi

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Obasi, Ikenna A., Godwin O. Aigbadon, Nneka M. Onwa, Sikiru A. Salami, Chidimma N. Chukwu, and Ikechukwu M. Onwe. "Empirical models for determination of hydraulic conductivity of the Ajali formation using sedimentological analysis in the Idah Area, Northern Anambra Basin, Nigeria." Dutse Journal of Pure and Applied Sciences 10, no. 4a (2025): 268–82. https://doi.org/10.4314/dujopas.v10i4a.25.

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This study examines the hydraulic conductivity of the Ajali Sandstone Formation in Idah axis of the northern Anambra Basin, Nigeria. The investigation aims to determine the hydraulic conductivity cutoff for the Ajali Sandstone, which is important for the development and management of groundwater resources in Idah area. The study utilizes thin section and grain size analysis on five samples to determine hydraulic conductivity. The Sedimentological analysis indicates medium to coarse-grained, subangular quartz, monocrystalline structures. The modal composition from the thin section ranges from 6

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Jian-Guo, Hou, An Xu-Wen, and He Ying-Min. "Comments on Design Methods of Penstocks." Journal of Pressure Vessel Technology 126, no. 3 (2004): 391–98. http://dx.doi.org/10.1115/1.1763930.

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This paper selects several representative penstocks codes of hydropower stations in China and foreign countries including USBR Standards (1970), ASCE Steel Penstocks (1993), Japanese Technical Standards for Gates and Penstocks (1993), the former USSR’s code My 34 747-76 and Π 780-83, and Chinese code DL/T 5141-2001; analyzes and compares their different design methods and corresponding safety levels. In addition, the probabilistic limit state design method adopted in DL/T 5141-2001 is described emphatically. What are described can be taken as reference by the engineering technicians who are en

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32

Meng, Xiao, Chao Zhang, Bin Zhang, et al. "Application Research of a High Turbulence Numerical Simulation Technique in a USBR Type III Stilling Basin." Water 16, no. 24 (2024): 3568. https://doi.org/10.3390/w16243568.

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In view of the energy dissipation design of the USBR Type III stilling basin, which is characterized by intense turbulent flow and complex flow patterns, a reliable mathematical model and calculation method is used to track and record the changes of flow parameters during fluid movement. The results of flow movement can be obtained, and the changes to the whole and local parameters of the flow field can be accurately simulated. Using the case of the discharge sluice stilling basin of the flood storage ecological treatment project of Jinchang Industrial Base in Gansu Province, this paper simula

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Sabry, Tarek. "Evaluation of decentralized treatment of sewage employing Upflow Septic Tank/Baffled Reactor (USBR) in developing countries." Journal of Hazardous Materials 174, no. 1-3 (2010): 500–505. http://dx.doi.org/10.1016/j.jhazmat.2009.09.080.

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34

Urumović, Kosta, Staša Borović, Kosta Urumović, and Dražen Navratil. "Validity range and reliability of the United States Bureau of Reclamation (USBR) method in hydrogeological investigations." Hydrogeology Journal 28, no. 2 (2019): 625–36. http://dx.doi.org/10.1007/s10040-019-02080-2.

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35

Gebrehiwot, S. G., U. Ilstedt, A. I. Gärdenas, and K. Bishop. "Hydrological characterization of watersheds in the Blue Nile Basin, Ethiopia." Hydrology and Earth System Sciences 15, no. 1 (2011): 11–20. http://dx.doi.org/10.5194/hess-15-11-2011.

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Abstract. Thirty-two watersheds (31–4350 km2), in the Blue Nile Basin, Ethiopia, were hydrologically characterized with data from a study of water and land resources by the US Department of Interior, Bureau of Reclamation (USBR) published in 1964. The USBR document contains data on flow, topography, geology, soil type, and land use for the period 1959 to 1963. The aim of the study was to identify watershed variables best explaining the variation in the hydrological regime, with a special focus on low flows. Moreover, this study aimed to identify variables that may be susceptible to management

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Gebrehiwot, S. G., U. Ilstedt, A. I. Gärdenas, and K. Bishop. "Hydrological characterization of watersheds in the Blue Nile Basin." Hydrology and Earth System Sciences Discussions 7, no. 4 (2010): 4089–111. http://dx.doi.org/10.5194/hessd-7-4089-2010.

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Abstract. We made a hydrological characterization of 32 watersheds (31–4350 km2) in the Blue Nile Basin, using data from a study of water and land resources in the Blue Nile Basin, Ethiopia published in 1964 by the US Bureau of Reclamation (USBR). The USBR document contains data on flow, climate, topography, geology, soil type, and land use for the period from 1959 to 1963. The aim of the study was to identify which combination of watershed variables best explain the variation in the hydrological regime, with special focus to low flow and, what kind of land use low flow might benefit from. Pri

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37

Fatimah, Eldina, Azmeri Azmeri, Qurratul 'Aini, Muhammad Fauzi, and Maimun Rizalihadi. "Analysis of the Hydraulic Jump Characteristics in a Stilling Basin to Avoid Dam Failure." International Journal of Disaster Management 6, no. 1 (2023): 75–88. http://dx.doi.org/10.24815/ijdm.v6i1.31990.

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Flooding may occur due to dam failure at downstream of the spillway. Stilling basin of the spillway plays an important role in reducing turbulence generated by hydraulic jumps. It can avoid flooding and local scouring as well. Therefore, this study aims to analyze hydraulic jump characteristics experimentally. Two series of structures namely initial (S0) and final (S1) were tested. The S0 model is the United States Bureau of Reclamation (USBR) III type, while S1 is set the adverse slope of 1:2 at the downstream and lowering the bottom elevation of the channel by 4 m. Measurements were taken on

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Macián-Pérez, Juan Francisco, Francisco José Vallés-Morán, and Rafael García-Bartual. "Assessment of the Performance of a Modified USBR Type II Stilling Basin by a Validated CFD Model." Journal of Irrigation and Drainage Engineering 147, no. 11 (2021): 04021052. http://dx.doi.org/10.1061/(asce)ir.1943-4774.0001623.

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Macián-Pérez, Juan Francisco, Rafael García-Bartual, Boris Huber, Arnau Bayon, and Francisco José Vallés-Morán. "Analysis of the Flow in a Typified USBR II Stilling Basin through a Numerical and Physical Modeling Approach." Water 12, no. 1 (2020): 227. http://dx.doi.org/10.3390/w12010227.

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Adaptation of stilling basins to higher discharges than those considered for their design implies deep knowledge of the flow developed in these structures. To this end, the hydraulic jump occurring in a typified United States Bureau of Reclamation Type II (USBR II) stilling basin was analyzed using a numerical and experimental modeling approach. A reduced-scale physical model to conduct an experimental campaign was built and a numerical computational fluid dynamics (CFD) model was prepared to carry out the corresponding simulations. Both models were able to successfully reproduce the case stud

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ONITSUKA, Kouki, Juichiro AKIYAMA, Hideto ISECHI, and Kenji SHUTO. "CONTROL OF HYDRAULIC JUMP IN STILLING BASIN WITH USBR-TYPE III CONSTRUCTED AT DOWNSTREAM TOE OF STEEP CHANNEL." PROCEEDINGS OF HYDRAULIC ENGINEERING 49 (2005): 853–58. http://dx.doi.org/10.2208/prohe.49.853.

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Idfi, Gilang, Umboro Lasminto, and Anak Agung Gde Kartika. "Experimental Study of Energy Dissipation and Efficiency in a Stair-Shaped Modification of USBR Type III Stilling Basin." International Journal of Computational Methods and Experimental Measurements 12, no. 3 (2024): 237–50. http://dx.doi.org/10.18280/ijcmem.120305.

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Wahyuni, Sri, Moch. Sholichin, and Anggara Wiyono Wit Saputra. "Studi Rehabilitasi Bendung Untuk Kebutuhan Air Irigasi Pada D.I Gumbasa Kabupaten Sigi, Provinsi Sulawesi Tengah." Jurnal Teknologi dan Rekayasa Sumber Daya Air 4, no. 1 (2024): 899–911. http://dx.doi.org/10.21776/ub.jtresda.2024.004.01.076.

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Tsunami dan gempa bumi yang terjadi di daerah Sulawesi Tengah yang meliputi Kota Palu, Kabupaten Sigi, Kabupaten Donggala, serta wilayah sekitarnya pada tanggal 28 September 2018 berdampak pada kerusakan Bendung Gumbasa. Studi ini bertujuan untuk memperoleh dimensi Bendung Gumbasa serta stabilitas bendung yang aman terhadap kondisi daerah studi. Studi terdiri dari beberapa kajian yakni analisa hidrologi, analisa neraca air, perencanaan dimensi bangunan utama Bendung Gumbasa serta analisa stabilitas bendung. Hasil studi menunjukkan dimensi bendung yang sesuai kondisi daerah studi yakni tinggi b

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Quadros, Gabriel Caetano Abrantes de, and Ana Rúbia de Carvalho Bonilha Silva. "Desenvolvimento de software para caracterização e pré-dimensionamento de bacias de dissipação USBR do tipo I, II, III e IV." Revista de Engenharia Civil IMED 8, no. 1 (2021): 125. http://dx.doi.org/10.18256/2358-6508.2021.v8i1.4201.

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Bacias de dissipação são estruturas hidráulicas responsáveis por evitar a erosão do leito do rio devido a velocidade da água a jusante do vertedor de barragens. Tais bacias ocasionam a dissipação de energia, sendo dimensionadas para atender as diversas condições do escoamento. As bacias de dissipação USBR do tipo I, II, III e IV são bacias que apresentam a dissipação de energia através da formação de um ressalto hidráulico contido em sua estrutura. Dentro deste contexto, por meio de um estudo sobre os diversos métodos de cálculos usados no dimensionamento destes tipos de bacia de dissipação, f

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Reyes Roque, Reynaldo. "Análisis y evaluación de riesgos a la seguridad de fallas de presas en la Cordillera Blanca, Áncash: Aplicación a la construcción de una presa en la quebrada Cojup." APORTE SANTIAGUINO 9, no. 2 (2017): 253. http://dx.doi.org/10.32911/as.2016.v9.n2.199.

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<p>La construcción de una presa en la quebrada Cojup tiene importancia estratégica para el abastecimiento futuro de agua potable para la ciudad de Huaraz; sería una infraestructura vital y crítica, ya que una eventual rotura y falla de la presa, ocasionaría severas pérdidas de vidas humanas además de económicas y medioambientales. El objetivo principal de esta investigación ha sido realizar el análisis y la evaluación de riesgos a la seguridad en fallas de presas. La metodología utilizada consistió en aplicar los principales criterios de tolerabilidad de riesgos existentes a nivel intern

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Kosaric, N., and Z. Duvnjak. "Deemulsification of Water-in-Oil Emulsion with Sludges." Water Quality Research Journal 22, no. 3 (1987): 437–43. http://dx.doi.org/10.2166/wqrj.1987.034.

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Abstract Aerobic sludge from a municipal activated sludge treatment plant, sludge from a conventional municipal anaerobic digester, aerobic sludge from an activated sludge process of a petroleum refinery, and granular sludge from an upflow sludge blanket reactor (USBR) were tested in the deemulsification of a water-in-oil emulsion. All sludges except the last one, showed a good deemulsification capability and could he used for a partial deemulsification of such emulsions. The rate and degree of the deemulsifications increased with an increase in sludge concentrations. The deemulsifications wer

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Kapure, P. V., S. P. Nangare, T. R. Gaikwad, M. S. Narke, and P. A. Huge. "A Hybrid Approach to Improve Energy Dissipation in Stilling Basin." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (2022): 609–11. http://dx.doi.org/10.22214/ijraset.2022.41270.

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Abstract: This study contains a hydraulic prototype model and experiments that will be conducted to generalize and prove the hydraulic design of a new type of stilling basin that controls discharge with a hollow-jet valve. The stilling basin is usually considered to be the most efficient hydraulic structure for dissipating flow energy. The size and shape of the stilling basin affect the formation of flow patterns, which can affect the overall hydraulic performance of the system. An ogee spillway's is important for dissipating excess water's specific energy. The kinetic energy generated by the

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Hsu, Sung Chi, Huan Yang Chiang, and Ji Yuan Lin. "Effect of Gradation and Cement on the Properties of Soil-Cement Mixtures." Advanced Materials Research 535-537 (June 2012): 1719–22. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1719.

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Eight non-plastic soils with different gradation are used for this research to study the appropriate choice of soil-cement mixture for a earth and rock-fill dam construction project. The properties of soil-cement materials are influenced by several factors, including type and proportion of soil, cementitious materials, water content, compaction, uniformity of mixing, curing conditions, and age of the compacted mixture. Based on the experimental results, the maximum dry density will increase with an increase in cement content for soils with low fines content. However, no significant variation w

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Ryczek, Marek, Edyta Kruk, Magdalena Malec, and Sławomir Klatka. "Comparison of pedotransfer functions for the determination of saturated hydraulic conductivity coefficient." Ochrona Srodowiska i Zasobów Naturalnych 28, no. 1 (2017): 25–30. http://dx.doi.org/10.1515/oszn-2017-0005.

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Abstract On one hand, direct methods of measurement of saturated hydraulic conductivity coefficient are time consuming, and on the other hand, laboratory methods are cost consuming. That is why the popularity of empirical methods has increased. Their main advantages are speed of calculations and low costs. Comparison of various empirical methods (pedotransfer functions) for the determination of saturated hydraulic conductivity coefficient was the purpose of this work. The methods used were Shepard’s, Hazen’s, USBR (United States Bureau of Reclamation), Saxton et al.’s, Kozeny–Carman’s, Krüger’

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Diah Palupi, Budi Rahayu, Titin Sundari, Meriana Wahyu Nugroho, and Rahma Ramadhani. "Studi Perencanaan Ulang Bangunan Pelimpah (Spillway)Bendungan Tiu Suntuk Kabupaten Sumbawa Barat." Jurnal Teknologi dan Rekayasa Sumber Daya Air 3, no. 2 (2023): 746–56. http://dx.doi.org/10.21776/ub.jtresda.2023.003.02.063.

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Perencanaaan bangunan pelimpah bendungan Tiu Suntuk melalui tahapan analisis hidrologi, hidrolika dan stabilitas. Analisis hidrologi dilakukan untuk mendapatkan besaran debit banjir rencana yang digunakan untuk mendesain dimensi pelimpah yang efektif. Analisis hidrolika dilakukan untuk mendapatkan desain hidrolis bangunan pelimpah dan kolam olak. Analisis stabilitas bertujuan untuk mengetahui kontrol keamanan konstruksi bendungan terhadap gaya-gaya yang bekerja. Hasil perhitungan hidrologi didapatkan debit banjir rancangan metode Nakayasu kala ulang 1000 tahun sebesar 986,8 m3/dtk. Hasil perhi

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Macián-Pérez, Juan Francisco, Francisco José Vallés-Morán, Marco De-Rossi-Estrada, Santiago Sánchez-Gómez, and Rafael García-Bartual. "Estudio de la superficie libre de resaltos hidráulicos en cuencos amortiguadores empleando técnicas LIDAR." Ingeniería del Agua 28, no. 2 (2024): 93–105. http://dx.doi.org/10.4995/ia.2024.20621.

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El presente estudio busca contribuir a la caracterización del perfil longitudinal de la lámina libre en resaltos hidráulicos que tienen lugar en un cuenco amortiguador. Para ello, se desarrolla un modelo físico de cuenco amortiguador tipificado del United States Bureau of Reclamation (USBR II), sobre el cual se mide la superficie libre de un resalto con números de Froude y Reynolds Fr1=9 y Re1=14.7·104, empleando técnicas LIDAR (LIght Detection And Ranging). Junto con el perfil de la lámina libre se obtienen una serie de parámetros relacionados con el mismo y de relevancia para el funcionamien

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