Scour Manual: Current-Related Erosion
暫譯: 沖刷手冊：與電流相關的侵蝕
Hoffmans, G. J. C. M., Verheij, H. J.
- 出版商: CRC
- 出版日期: 2021-03-30
- 售價: $6,500
- 貴賓價: 9.5 折 $6,175
- 語言: 英文
- 頁數: 304
- 裝訂: Hardcover - also called cloth, retail trade, or trade
- ISBN: 0367675943
- ISBN-13: 9780367675943
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相關主題
商品描述
Ever since the publication in 1997 the original Scour Manual has helped many practising hydraulic engineers to deal with scour processes near hydraulic structures. In recent years new insights, such as probabilistic calculations, offered new opportunities to design structures more economically. These new insights are included in this update of the original Scour Manual, which is focussing entirely on current-related scour. This manual provides the engineer with useful practical methods to calculate the dimensions of scour holes in the pre-feasibility and preliminary stages of a project, and gives an introduction to the most relevant literature.
This updated Scour Manual contains guidelines that can be used to solve problems related to scour in engineering practice and also reflects the main results of all research projects in the Netherlands in recent decades. The so-called Breusers equilibrium method has a central role, which can basically be applied to all situations where local scour is expected. The method allows to predict the scour depth as a function of time, provided that the available knowledge about scour at the specific structure is sufficient. For structures with insufficient knowledge available, alternative scour prediction rules are presented.
The treatment of local scour is classified according to the different types of structures. Each type of structure is necessarily schematised to a simple, basic layout. The main parameters of a structure and the main parts of the flow pattern near a structure are described briefly insofar they are relevant to the description of scour phenomena. New scour formulas for the equilibrium scour have been elucidated. Evaluating a balance of forces for a control volume, it is possible to develop scour equations for different types of flow fields and structures, i.e. jets, abutments and bridge piers.
As many scour problems are still not fully understood, attention is paid to the validity ranges and limitations of the formulas, as well as to the accuracy of the scour predictions. This information can also be used to carry out a risk assessment using a safety philosophy based on a probabilistic analysis or an approach with a safety factor. Moreover, the information on the strength of soils is extended and aspects are addressed such as scour due to shear failures or flow slides, that can progressively damage the bed protection which might lead to the failure of hydraulic structures.
This updated Scour Manual presents scour prediction methods and deals with practically related scour problems. Consultants and contractors were invited to provide case studies of realized projects, including the methods that were followed. These case studies will help with grasping the concept of scour by the flow of water. This manual provides the engineer with the latest knowledge and with case studies that show how to apply the formulas and their limitations.
商品描述(中文翻譯)
自1997年原版《沖刷手冊》出版以來，該手冊幫助了許多實踐中的水利工程師處理水利結構附近的沖刷過程。近年來，新的見解，例如概率計算，為更經濟地設計結構提供了新的機會。這些新見解已納入此次更新的原版《沖刷手冊》中，該手冊完全專注於與水流相關的沖刷。此手冊為工程師提供了實用的方法，以計算項目可行性前期和初步階段的沖刷孔尺寸，並介紹了最相關的文獻。
這本更新的《沖刷手冊》包含可用於解決工程實踐中與沖刷相關問題的指導方針，並反映了近幾十年來荷蘭所有研究項目的主要結果。所謂的Breusers平衡法在其中扮演了核心角色，基本上可以應用於所有預期會發生局部沖刷的情況。該方法允許根據時間預測沖刷深度，前提是對特定結構的沖刷知識足夠。對於知識不足的結構，則提供了替代的沖刷預測規則。
局部沖刷的處理根據不同類型的結構進行分類。每種類型的結構都必須簡化為一個基本的簡單佈局。結構的主要參數和結構附近流動模式的主要部分將簡要描述，以便與沖刷現象的描述相關。新的沖刷公式已針對平衡沖刷進行了闡述。通過對控制體積進行力的平衡評估，可以為不同類型的流場和結構（即噴流、支撐和橋樁）開發沖刷方程。
由於許多沖刷問題仍未完全理解，因此特別關注公式的有效範圍和限制，以及沖刷預測的準確性。這些信息也可用於進行風險評估，使用基於概率分析的安全哲學或帶有安全係數的方法。此外，土壤強度的信息也得到了擴展，並涉及到由剪切失效或流動滑坡引起的沖刷等方面，這可能會逐步損壞床面保護，導致水利結構的失效。
這本更新的《沖刷手冊》介紹了沖刷預測方法，並處理與實際相關的沖刷問題。邀請了顧問和承包商提供已實現項目的案例研究，包括所遵循的方法。這些案例研究將有助於理解水流沖刷的概念。此手冊為工程師提供了最新的知識和案例研究，展示了如何應用公式及其限制。
作者簡介
Mr. Hoffmans has more than 30 years of professional experience in the field of scour, internal erosion, river engineering, dike and dam engineering and flood protection projects and has acted several times as Expert as well as Project Manager. He started his career as a research engineer regarding scour and erosion and the corresponding geotechnical processes. In addition, he examined the erodibility of both bed protections around hydraulic structures in non-uniform flow conditions, and revetments at dikes, for example grass covers. With this up-to-date knowledge he advised several clients all over the world with designing and assessing hydraulic structures. His design experience has been gained in various countries and covers the river training works and its geotechnical engineering and stability aspects. More specifically, this experience also focused on hydraulic structures such as estimating the dimensions of scour holes in relation to the magnitude of bed protection and the risks of shear failures and/or flow slides, considering several types of scour. The combination of research and project-related advice on site has increased his insight in the mathematical modelling of internal erosion phenomena, especially piping. He is author of several manuals and of more than 50 publications.
Mr. Henk Verheij graduated in 1978 at Delft University of Technology in Civil Engineering (M.Sc.) and, subsequently, joined Delft Hydraulics (now Deltares) until his retirement in 2014. From 2006 till mid 2020 he was lecturer Ports & Waterways at the Delft University. Mr. Henk Verheij is a senior hydraulic engineer in the fields of dikes, embankments, hydraulic structures, ship-induced water motions, revetments and scour and its effects on the stability of bed protections, embankments and dikes along canals and rivers. He has experience with small-scale models as well as full-scale prototype investigations. He participated in research on dike breaches in cohesive materials, environmental-friendly protection methods, strength of grass dikes by overtopping tests, and reed as protection material. The expertise of Mr. Henk Verheij is being used for preparing guidelines and manuals for filter design, river dike revetments, scour, and the safety against flooding. He published over 50 papers, and is co-author of PIANC report 180 Guidelines for protecting berthing structures from scour caused by ships.
作者簡介(中文翻譯)
霍夫曼先生在沖刷、內部侵蝕、河流工程、堤防和大壩工程以及防洪項目領域擁有超過30年的專業經驗，並多次擔任專家及項目經理。他的職業生涯始於研究工程師，專注於沖刷和侵蝕及相應的土木工程過程。此外，他還研究了在不均勻流動條件下，水利結構周圍的床面保護的侵蝕性，以及堤防的護坡，例如草皮覆蓋。憑藉這些最新的知識，他為全球多位客戶提供水利結構的設計和評估建議。他的設計經驗來自多個國家，涵蓋了河流整治工程及其土木工程和穩定性方面。更具體地說，這些經驗還專注於水利結構，例如根據床面保護的大小和剪切失效及/或流動滑坡的風險來估算沖刷孔的尺寸，考慮多種沖刷類型。研究與現場項目相關建議的結合增強了他對內部侵蝕現象（特別是管道現象）數學建模的洞察力。他是多本手冊的作者，並發表了超過50篇論文。
亨克·維爾海先生於1978年在代爾夫特科技大學獲得土木工程碩士學位（M.Sc.），隨後加入代爾夫特水利公司（現為Deltares），直到2014年退休。從2006年到2020年中，他擔任代爾夫特大學的港口與水道講師。亨克·維爾海先生是堤防、堤壩、水利結構、船舶引起的水流運動、護坡以及沖刷及其對運河和河流沿岸床面保護、堤壩和堤防穩定性影響的高級水利工程師。他擁有小型模型和全尺寸原型調查的經驗。他參與了對粘性材料堤防破壞的研究、環保保護方法、通過溢流測試評估草堤的強度以及芦苇作為保護材料的研究。亨克·維爾海先生的專業知識被用於編寫過濾設計、河流堤防護坡、沖刷及防洪安全的指導方針和手冊。他發表了超過50篇論文，並共同撰寫了PIANC報告180《防止船舶引起的沖刷對停泊結構的影響的指導方針》。
