Dams and Reservoirs最新文献_第3页

Recollections and reflections on the construction of Scammonden Dam (1966-1970) 斯卡蒙登大坝建设的回顾与思考（1966-1970）

Dams and Reservoirs Pub Date : 2023-04-28 DOI: 10.1680/jdare.23.00102

D. Parkinson, J. Charles

引用次数: 0

ICOLD 2022 Questions - Marseilles, France ICOLD 2022问题-马赛，法国

Dams and Reservoirs Pub Date : 2023-04-05 DOI: 10.1680/jdare.23.00101

Andrew Pepper, Hermann T. Stehle, Maddie A. Prendergast, Samuel Holden, Michael Calder

引用次数: 0

Evaluation of sediment management strategies for Tarbela Reservoir 塔尔贝拉水库泥沙治理策略评价

Dams and Reservoirs Pub Date : 2023-03-14 DOI: 10.1680/jdare.22.00119

M. U. Rashid, Haris Miqdad, Muhammad Saad ul Hassan, Abdul Haseeb, Muhammad Asad

{"title":"Evaluation of sediment management strategies for Tarbela Reservoir","authors":"M. U. Rashid, Haris Miqdad, Muhammad Saad ul Hassan, Abdul Haseeb, Muhammad Asad","doi":"10.1680/jdare.22.00119","DOIUrl":"https://doi.org/10.1680/jdare.22.00119","url":null,"abstract":"Multipurpose large dams play a significant role in the development of world by providing water for irrigation, flood control and hydropower. This study aims to evaluate different strategies for the evacuation of deposited sediments and reducing sediment inflows to Tarbela Reservoir by using HEC-RAS. Sediment flushing from existing power tunnels was found unfeasible due to the downstream constraints and the loss of 7848 MW of hydropower. New sediment bypass tunnels on the right bank of the dam to overcome the constraints were analysed. The sediment balance ratio, long-term capacity ratio and economic analysis were computed along with sediment modelling for different scenarios. The most technically viable scenario was 90 days flushing at 390 m drawdown level with a discharge 5000 m3/s. This scenario was not economically feasible as NPV was negative, IRR was 3-4 %, and the benefit cost ratio was less than one. The Diamer Basha Dam under construction upstream of Tarbela Reservoir was also evaluated. The results suggested a large volume of sediment would be trapped in the upstream reservoir which would ultimately lead to a significant reduction in the inflow of sediment and the delta movement in Tarbela Reservoir. This option was recommended due to its multiple benefits and potential capacity to enhance Tarbela Reservoir's life.","PeriodicalId":39070,"journal":{"name":"Dams and Reservoirs","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49099801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Binnie lecture 2022: How reservoirs have shaped my career and may shape our future 宾尼讲座2022:水库如何塑造我的职业生涯，并可能塑造我们的未来

Dams and Reservoirs Pub Date : 2023-02-28 DOI: 10.1680/jdare.23.00100

T. Hill

引用次数: 0

Numerical investigation of liquefaction-induced settlement and instability on embankment dams (a case study) 路堤坝液化沉降与失稳数值研究(以实例为例)

Dams and Reservoirs Pub Date : 2023-02-28 DOI: 10.1680/jdare.22.00120

Hamidreza Fata, A. Akhtarpour, M. Kazemi, Sobhan Rahmatkhah

{"title":"Numerical investigation of liquefaction-induced settlement and instability on embankment dams (a case study)","authors":"Hamidreza Fata, A. Akhtarpour, M. Kazemi, Sobhan Rahmatkhah","doi":"10.1680/jdare.22.00120","DOIUrl":"https://doi.org/10.1680/jdare.22.00120","url":null,"abstract":"Liquefaction is a phenomenon in which soil loses its bearing capacity, large settlements occur, and it may cause lateral spreading and failures. Numerous studies and cases in the world have shown that liquefaction occurs in the alluvium foundations of earth dams. The occurrence of widespread liquefaction can cause the entire dam to fail. In this paper, methods of assessment and numerical analysis have been used to assess the Shourijeh reservoir dam liquefaction. According to the latest criteria, it was observed that by considering the acceleration of the maximum credible earthquake level (MCE), the alluvial foundation of Shourijeh Dam is liquefiable in some areas. The dynamic analysis and liquefaction modelling based on linear equivalent analyses have been used. By analysing the sliding block and sliding circles based on the limit equilibrium method and the Newmark sliding block analysis, the stability safety factors of slopes for Shourijeh Dam after the earthquake have been investigated for three different earthquakes and various states of reservoir water level. Stress redistribution analysis has been used to estimate the permanent deformation of the structure due to seismic loading. The results of this research, in addition to providing helpful information regarding the performance of earth dams against liquefaction and its effects, have shown that the settlements caused by liquefaction in the studied dam are not so large that they would cause extensive damage and collapse of the dam at the MCE level.","PeriodicalId":39070,"journal":{"name":"Dams and Reservoirs","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42434211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

InSAR monitoring of UK embankment dams: influence of dam features on monitoring quality 英国路堤坝InSAR监测:坝体特征对监测质量的影响

Dams and Reservoirs Pub Date : 2022-12-05 DOI: 10.1680/jdare.22.00083

T. Shire, Jamesf . Lawrence, Stewart Agar, R. Ghail, T. Judge

{"title":"InSAR monitoring of UK embankment dams: influence of dam features on monitoring quality","authors":"T. Shire, Jamesf . Lawrence, Stewart Agar, R. Ghail, T. Judge","doi":"10.1680/jdare.22.00083","DOIUrl":"https://doi.org/10.1680/jdare.22.00083","url":null,"abstract":"Radar interferometry (InSAR) is a satellite remote sensing technique which offers deformation monitoring at frequent intervals with sub-centimetre accuracy. The most popular form of InSAR monitoring for infrastructure is Persistent Scatterer Interferometry (PSI). This relies on the identification of persistent scatterers: permanent, rigid objects which can reliably backscatter a signal to the satellite receiver. As the typical UK embankment dam has grassed slopes, the majority of persistent scatterers are detected at hard infrastructure located at the dam crest. The aim of this paper is to study the influence of dam features on persistent scatterer detection and quality at Scottish Water embankment dams. Following a case study in which PSI can be shown to detect dam deformation associated with an extreme climate event (the summer 2018 heatwave), statistics from 17 Scottish embankment dams are used to determine which dam features lead to the best quality PSI results. The type of wave protection at the crest of a dam is the biggest influence, whereas the presence of an asphalt surfaced crest road is shown to have a surprisingly limited effect on persistent scatterer quality.","PeriodicalId":39070,"journal":{"name":"Dams and Reservoirs","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45944572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lessons learned from reservoir discontinuances 从水库停产中吸取的教训

Dams and Reservoirs Pub Date : 2022-11-24 DOI: 10.1680/jdare.22.00084

Ryan McHugh, M. Craig, Ross Morrin

{"title":"Lessons learned from reservoir discontinuances","authors":"Ryan McHugh, M. Craig, Ross Morrin","doi":"10.1680/jdare.22.00084","DOIUrl":"https://doi.org/10.1680/jdare.22.00084","url":null,"abstract":"Redundant reservoirs, whether they are subject to the provisions of reservoir legislation or not, have an ongoing maintenance requirement that places a burden on reservoir owners. Reservoirs upstream of communities also pose a risk to life. For these reasons, reservoir owners often consider discontinuing redundant assets; however, reservoirs can deliver amenity value for local communities as well as contributing to a desirable environmental habitat. Careful consideration should therefore be given to balancing the advantages and disadvantages when deciding whether to discontinue a reservoir. This paper will draw on case studies of five Scottish Water reservoir sites where the merits of discontinuance have been assessed. Two have been retained; and three have been discontinued. Key influences and lessons learned will be presented including identifying and mitigating environmental aspects; the findings from public consultations; the approach to whole life cost estimates; the benefits or otherwise of carrying ground investigations; the approach to dealing with sediment issues; the approach to managing flood risk during removal of the reservoir; and the approach to managing downstream flood risk following removal of the reservoir. The peculiarities of the Reservoirs (Scotland) Act 2011 (HMG, 2011) will be touched upon, as complete removal of a reservoir is termed abandonment!","PeriodicalId":39070,"journal":{"name":"Dams and Reservoirs","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48769466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The challenging structural integrity of dams in cold climates 寒冷气候下大坝结构完整性的挑战

Dams and Reservoirs Pub Date : 2022-11-17 DOI: 10.1680/jdare.22.00112

D. A. Krutov

{"title":"The challenging structural integrity of dams in cold climates","authors":"D. A. Krutov","doi":"10.1680/jdare.22.00112","DOIUrl":"https://doi.org/10.1680/jdare.22.00112","url":null,"abstract":"The design of concrete dams for cold climates has its specific features. Particularly, the operation of dams is characterised by openings of horizontal construction joints on the downstream face due to significant temperature differences over the winter period between the downstream surface and the interior of the dam. The opening of joints increases further due to the changes in the thermal properties of concrete as it freezes. The effect of thermal stresses may induce the growth of tensile stresses on the upstream face because the dam decreases its profile. Thus, there is a problem of the effectiveness of reinforcement of the dam's downstream face. Numerical models that were developed made it possible to evaluate the strain state of a typical cross section of a gravity dam by (i) considering changes in the properties of concrete as it freezes; (ii) excluding changes in the properties of concrete; and (iii) considering changes in the properties of concrete plus reinforcement of the dam faces. As a result of this research, it has been possible to assess the actual stress-strain state of the downstream face of the dam (the average depth/width of joints openings) and evaluate changes of concrete properties at subfreezing temperatures.","PeriodicalId":39070,"journal":{"name":"Dams and Reservoirs","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46727070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observing waterflow within an embankment dam using Self Potential monitoring 利用自电位监测观测堤防内水流

Dams and Reservoirs Pub Date : 2022-11-11 DOI: 10.1680/jdare.22.00085

Joanna Hamlyn, R. Cottrell, C. Bird, B. Kulessa

引用次数: 0

The application of infrared thermography in the diagnostics of hydraulic structures 红外热成像技术在水工结构诊断中的应用

Dams and Reservoirs Pub Date : 2022-10-14 DOI: 10.1680/jdare.22.00087

L. Opyrchał, R. Chmielewski

引用次数: 0