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Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 90-97 doi: 10.1007/s11709-010-0008-3

Abstract: Dam constructions worldwide are designed and constructed in view of the strictest safety aspects for all static and dynamic load cases. As experience shows, however, formation of cracks in the “homogeneos concrete” as well as unsatisfactory compound behavior of lift joints are not to be excluded. These zones of weakness especially on the upstream side of the dam— exposed to high water pressure (static and dynamic)— represent an increased risk of safety. The main investigation, apart from the computation of the dynamic effects on the dam as a global structure, focuses on the stability analysis of a pressure-water filled crack configuration subjected to “dynamic loading” in the form of seismic action on the dam-reservoir-system and alternatively by “impact spot-loading” within sectors of the reservoir. A fracture mechanics based analysis shows an excessive potential of damage for the afflicted structure.

Keywords: dam-reservoir     earthquake     impact     cracking     fracture mechanics    

Earthquake analysis of arch and gravity dams including the effects of foundation inhomogeneity

LIN Gao, DU Jianguo, HU Zhiqiang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 1,   Pages 41-50 doi: 10.1007/s11709-007-0004-4

Abstract: Dam-foundation interaction plays an important role in the design of earthquake-resistant concrete arch and gravitydams.In this paper, the effect of foundation inhomogeneity on the seismic response of arch and gravity damsas well as gravity dams were analyzed.dams has great significance.

Keywords: selection     interlayer     damfoundation interaction     Geological     computational    

Evaluation of seismic reliability of gravity dam-reservoir-inhomogeneous foundation coupled system

Hamid Taghavi GANJI, Mohammad ALEMBAGHERI, Mohammad Houshmand KHANEGHAHI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 701-715 doi: 10.1007/s11709-018-0507-1

Abstract: The seismic performance of gravity dam-reservoir-foundation coupled system is investigated utilizingThe methodology is applied to Pine Flat gravity dam and the foundation is considered to be inhomogeneous

Keywords: gravity dams     dam-reservoir-foundation interaction     seismic reliability     inhomogeneous foundation     earthquake    

China's High Dams Construction and Research on Science and Technology

Chen Zongliang

Strategic Study of CAE 2000, Volume 2, Issue 12,   Pages 84-89

Abstract:

The development and characteristics of high dams construction in China are introduced.and technology of high dams are indicated.constructed, and there are 16 dams with height over 150 m to be completed or under construction.They in elude the 181 m-high concrete gravity dam in the Three Gorges Project, the 240 m — highCFRD, the 233 m~high Shuibuya CFRD, the 130 m- high Shapai RCC arch dam, the 131 m- high Jiangya RCC gravity

Keywords: hydroelectric power     high dam     gravity dam     arch dam     roller compacted concrete dam (RC-CD)     concrete face    

Reliability and variance-based sensitivity analysis of arch dams during construction and reservoir impoundment

M. Houshmand KHANEGHAHI, M. ALEMBAGHERI, N. SOLTANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 526-541 doi: 10.1007/s11709-018-0495-1

Abstract: The static performance of arch dams during construction and reservoir impoundment is assessed taking

Keywords: concrete arch dams     reliability     randomness     improved Latin hypercube sampling     variance-based sensitivity    

High-gravity intensified iron-carbon micro-electrolysis for degradation of dinitrotoluene

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1595-1605 doi: 10.1007/s11705-022-2204-9

Abstract: In order to address this problem, high-gravity intensified Fe–C micro-electrolysis was proposed in thisThe effects of reaction time, high-gravity factor, liquid flow rate and initial solution pH were investigatedIn conclusion, high-gravity intensified Fe–C micro-electrolysis can weaken the passivation of Fe–C particles

Keywords: high-gravity technology     rotating packed bed     Fe–C micro-electrolysis     dinitrotoluene wastewater     active    

Application of Satellite Gravity Gradiometry Data to the Refinement of the Earth’s Gravity Field

Ning Jinsheng,Luo Zhicai,Chen Yongqi

Strategic Study of CAE 2002, Volume 4, Issue 7,   Pages 23-28

Abstract: is to determine the geoid with centimeter level and to develop the ultra high global earth’s gravityfield model,and for this purpose satellite gravity gradiometry is one of the most promising techniquesThis paper first comments on the main progress of satellite gravity gradiometry, and then discusses sometheories and methods for refining the earth´s gravity field using satellite gravity gradiometry

Keywords: satellite gravity gradiometry     satellite gravity gradiometry boundary value problem     earth's gravity field    

Behavior of materials for earth and rockfill dams: Perspective from unsaturated soil mechanics

Eduardo E. ALONSO, Rafaela CARDOSO,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 1-39 doi: 10.1007/s11709-010-0013-6

Abstract: The basis of the design of earth and rockfill dams is focused on ensuring the stability of the structurehydro-mechanical behavior of traditional and non-traditional materials used in the construction of damsthe current level of knowledge on the behavior of traditional materials used in the construction of dams

Keywords: dams     unsaturated soil mechanics     suction     rockfill     clayey soil     mixture    

Dynamic failure analysis of concrete dams under air blast using coupled Euler-Lagrange finite element

Farhoud KALATEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 15-37 doi: 10.1007/s11709-018-0465-7

Abstract: In this study, the air blast response of the concrete dams including dam-reservoir interaction and acousticelement (FE) developed code are used to build three-dimensional (3D) finite element models of concrete damsNumerical results revealed that 1) concrete arch dams are more vulnerable to air blast loading than concretegravity dams; 2) reservoir has mitigation effect on the response of concrete dams; 3) acoustic cavitationintensify crest displacement of concrete dams.

Keywords: air blast loading     concrete dams     finite element     dam-reservoir interaction     cavitation     concrete damage model    

Stability analysis on Tingzikou gravity dam along deep-seated weak planes during earthquake

Weiping HE, Yunlong HE

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 69-75 doi: 10.1007/s11709-012-0146-x

Abstract: The stability of a gravity dam against sliding along deep-seated weak planes is a universal and importantproblem encountered in the construction of dams.

Keywords: gravity dam     deep-seated weak planes     stability against sliding     earthquake    

Safety Aspects of Sustainable Storage Dams and Earthquake Safety of Existing Dams

Martin Wieland

Engineering 2016, Volume 2, Issue 3,   Pages 325-331 doi: 10.1016/J.ENG.2016.03.011

Abstract: The special features of the seismic safety of dams are discussed.Large dams were the first structures to be systematically designed against earthquakes, starting in thepractices and rehabilitate deficient dams.For large dams, a site-specific seismic hazard analysis is usually recommended.Today, large dams and the safety-relevant elements used for controlling the reservoir after a strong

Keywords: Dams     Earthquake design     Earthquake safety     Existing dams     Design criteria     Seismic hazard     Sustainability    

A comprehensive simulation approach for pollutant bio-transformation in the gravity sewer

Nan Zhao, Huu Hao Ngo, Yuyou Li, Xiaochang Wang, Lei Yang, Pengkang Jin, Guangxi Sun

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 4, doi: 10.1007/s11783-019-1144-1

Abstract:

A comprehensive pollutant transformation model for sewer systems is established.

The model comprises fermentation, sulfate reduction and ammonification processes.

Biochemical reactions related to distinct carbon sources are depicted in the model.

Pollutant transformation is attributed to different biochemical reaction processes.

Keywords: Gravity sewer     Modeling     Pollutant transformation     Biochemical reaction process    

Shape design of arch dams under load uncertainties with robust optimization

Fengjie TAN, Tom LAHMER

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 852-862 doi: 10.1007/s11709-019-0522-x

Abstract: need in hydro-electricity, water storage, and flood protection, it is assumed that a series of new damsThe focus of this paper is on the non-probabilistic-based design of new arch-type dams by applying means

Keywords: arch dam     shape optimization     robust optimization     load uncertainty     approximation model    

mechanism of nitrobenzene degradation by hydroxyl radicals-based ozonation process enhanced by high gravity

Weizhou Jiao, Shengjuan Shao, Peizhen Yang, Kechang Gao, Youzhi Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1197-1205 doi: 10.1007/s11705-020-1998-6

Abstract: The high gravity technology can accelerate ozone mass transfer and self-decomposition of ozone to produce

Keywords: high gravity technology     hydroxyl radicals     nitrobenzene     reaction kinetics    

New method for efficient control of hydrogen sulfide and methane in gravity sewers: Combination of NaOH

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1509-0

Abstract:

• The combination of NaOH and nitrite was used to control harmful gas in sewers.

Keywords: Sewer corrosion     Sulfide control     Combination treatment     NaOH     Nitrite    

Title Author Date Type Operation

Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Journal Article

Earthquake analysis of arch and gravity dams including the effects of foundation inhomogeneity

LIN Gao, DU Jianguo, HU Zhiqiang

Journal Article

Evaluation of seismic reliability of gravity dam-reservoir-inhomogeneous foundation coupled system

Hamid Taghavi GANJI, Mohammad ALEMBAGHERI, Mohammad Houshmand KHANEGHAHI

Journal Article

China's High Dams Construction and Research on Science and Technology

Chen Zongliang

Journal Article

Reliability and variance-based sensitivity analysis of arch dams during construction and reservoir impoundment

M. Houshmand KHANEGHAHI, M. ALEMBAGHERI, N. SOLTANI

Journal Article

High-gravity intensified iron-carbon micro-electrolysis for degradation of dinitrotoluene

Journal Article

Application of Satellite Gravity Gradiometry Data to the Refinement of the Earth’s Gravity Field

Ning Jinsheng,Luo Zhicai,Chen Yongqi

Journal Article

Behavior of materials for earth and rockfill dams: Perspective from unsaturated soil mechanics

Eduardo E. ALONSO, Rafaela CARDOSO,

Journal Article

Dynamic failure analysis of concrete dams under air blast using coupled Euler-Lagrange finite element

Farhoud KALATEH

Journal Article

Stability analysis on Tingzikou gravity dam along deep-seated weak planes during earthquake

Weiping HE, Yunlong HE

Journal Article

Safety Aspects of Sustainable Storage Dams and Earthquake Safety of Existing Dams

Martin Wieland

Journal Article

A comprehensive simulation approach for pollutant bio-transformation in the gravity sewer

Nan Zhao, Huu Hao Ngo, Yuyou Li, Xiaochang Wang, Lei Yang, Pengkang Jin, Guangxi Sun

Journal Article

Shape design of arch dams under load uncertainties with robust optimization

Fengjie TAN, Tom LAHMER

Journal Article

mechanism of nitrobenzene degradation by hydroxyl radicals-based ozonation process enhanced by high gravity

Weizhou Jiao, Shengjuan Shao, Peizhen Yang, Kechang Gao, Youzhi Liu

Journal Article

New method for efficient control of hydrogen sulfide and methane in gravity sewers: Combination of NaOH

Journal Article