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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: : ① structural safety, ② dam safety monitoring, ③ operational safety and maintenance, and ④ emergencyThe special features of the seismic safety of dams are discussed.However, the seismic safety of older dams is unknown, as most were designed using seismic design criteriaTherefore, we need to reevaluate the seismic safety of existing dams based on current state-of-the-artToday, 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

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Consideration on seismic safety of dams in China after the Wenchuan Earthquake

Chen Houqun

Strategic Study of CAE 2009, Volume 11, Issue 6, Pages 44-53

Abstract:

In this paper the damages and behaviors of dams, especially for the 4dams with a height over 100 m, in the area affected by the devastative Wenchuan Earthquake on May 12The lessons concerning dam safety learnt from the quake are preliminarily drawn.Some critical problems related to the seismic safety of dams in China are discussed.Finally, some suggestions and comments for improving seismic safety of dams in China are provided.

Keywords： Wenchuan Earthquake safety of dams reservoir earthquake strategic priority

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Overview on Safety and Management of Dams in China

Wu Zhongru

Strategic Study of CAE 2000, Volume 2, Issue 6, Pages 36-39

Abstract: national economy construction in chin, so it is of great significance to improve and strengthen dam safetyDam safety situation is reviewed and safety management is outlined in this paper, and new notion is presentedfor the improvement of dam safety and management.

Keywords： dam safety management

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New concept of design for high concrete face rockfill dams

Li Nenghui

Strategic Study of CAE 2011, Volume 13, Issue 3, Pages 12-18

Abstract: p style="text-align: justify;">Based on analysis of experimential design for concrete face rockfill damsand its imperfection, a new design concept of high concrete face rockfill dams which includes stabilitysafety design, seepage safety design and deformation safety design in accordance with different topographicalimportance of deformation har monization principle was emphasized The principle and main points of stability safetydesign, seepage safety design and deformation safety design was also presented here.

Keywords： concrete face rockfill dam design concept stability safety seepage safety deformation safety

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Technical Progress on Researches for the Safety of High Concrete-Faced Rockfill Dams

Hongqi Ma,Fudong Chi

Engineering 2016, Volume 2, Issue 3, Pages 332-339 doi: 10.1016/J.ENG.2016.03.010

Abstract:

The concrete-faced rockfill dam (CFRD) is an important dam type in the selection of high dams to beIn addition, it discusses the key technologies and latest research progress regarding safety in the construction

Keywords： High concrete-faced rockfill dam Safety Technical progress

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Key Technologies in the Design and Construction of 300 m Ultra-High Arch Dams

Renkun Wang

Engineering 2016, Volume 2, Issue 3, Pages 350-359 doi: 10.1016/J.ENG.2016.03.012

Abstract: Ertan arch dam (240 m high, 3300 MW) in 2000, China successfully built a total of seven ultra-high arch damsAmong these, the Jinping I (305 m), Xiaowan (294.5m), and Xiluodu (285.5 m) arch dams have reached the300 m height level (i.e., near or over 300 m), making them the tallest arch dams in the world.team successfully tackled these challenges and made critical breakthroughs, especially in the area of safetybase and surface treatment, dam shape optimization, safety design guidelines, seismic analysis and design

Keywords： Ultra-high arch dam Shape optimization Arch dam overall safety Seismic safety Concrete temperature control

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On Some Important Problems About Concrete Dams

Zhu Bofang

Strategic Study of CAE 2006, Volume 8, Issue 7, Pages 21-29

Abstract:

The number, the height and the size of concrete dams under construction in China are the biggest onesSome important problems about concrete dams are discussed in this paper: (1) The key technique for terminatingMgO concrete to dam. (3) Concrete mark based on 90 d or 180 d age is more appropriate for concrete damsthan concrete class based on 28 d age . (4) The safety factor for compressive stress for the speciallyheigh concrete arch dam (higher than 200 m) is some what low in China (5) The equivalent stress in arch dams

Keywords： concrete dam cracks concrete mark safety factor for compressive stress equivalent stress for finite element

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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 takingThe reliability method is performed to assess the safety level and the sensitivity analyses for identifyingMoreover, the results of sampling are computed in order to assess the safety level of the dam in miscellaneous

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

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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 forside of the dam— exposed to high water pressure (static and dynamic)— represent an increased risk of safety

Keywords： dam-reservoir earthquake impact cracking fracture mechanics

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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

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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

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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 meansBy this means, the robust design can generate an improved arch dam structure that ensures both safety

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

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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: interaction plays an important role in the design of earthquake-resistant concrete arch and gravity damsIn this paper, the effect of foundation inhomogeneity on the seismic response of arch and gravity damsas well as gravity dams were analyzed.Therefore, taking into account the effect of foundation inhomogeneity for the earthquake safety assessmentof concrete arch and gravity dams has great significance.

Keywords： selection interlayer damfoundation interaction Geological computational

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Strengthening of the concrete face slabs of dams using sprayable strain-hardening fiber-reinforced cementitious

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2, Pages 145-160 doi: 10.1007/s11709-022-0806-4

Abstract: In this study, sprayable strain-hardening fiber-reinforced cementitious composites (FRCC) were applied to strengthen the concrete slabs in a concrete-face rockfill dam (CFRD) for the first time. Experimental, numerical, and analytical investigations were carried out to understand the flexural properties of FRCC-layered concrete slabs. It was found that the FRCC layer improved the flexural performance of concrete slabs significantly. The cracking and ultimate loads of a concrete slab with an 80 mm FRCC layer were 132% and 69% higher than those of the unstrengthened concrete slab, respectively. At the maximum crack width of 0.2 mm, the deflection of the 80-mm FRCC strengthened concrete slab was 144% higher than that of the unstrengthened concrete slab. In addition, a FE model and a simplified analytical method were developed for the design and analysis of FRCC-layered concrete slabs. Finally, the test result of FRCC leaching solution indicated that the quality of the water surrounding FRCC satisfied the standard for drinking water. The findings of this study indicate that the sprayable strain-hardening FRCC has a good potential for strengthening hydraulic structures such as CFRDs.

Keywords： strain-hardening cementitious composites engineered cementitious composites sprayable shotcrete strengthening concrete-face rockfill dam digital image correlation

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Computational Aspects of Dam Risk Analysis: Findings and Challenges

Ignacio Escuder-Bueno,Guido Mazzà,Adrián Morales-Torres,Jesica T. Castillo-Rodríguez

Engineering 2016, Volume 2, Issue 3, Pages 319-324 doi: 10.1016/J.ENG.2016.03.005

Abstract:

In recent years, risk analysis techniques have proved to be a useful tool to inform dam safety managementrisk analysis discussed in the Benchmark Workshops organized by the International Commission on Large DamsTechnical Committee on “Computational Aspects of Analysis and Design of Dams.

Keywords： Dams Risk analysis Computational methods Safety management Hydraulic structures