多场耦合作用下高混凝土坝水力劈裂研究综述
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摘要
阐述了混凝土结构水力劈裂的研究现状,结合多场耦合作用下高混凝土坝水力劈裂研究中存在的问题,从水工混凝土结构水力劈裂理论、试验技术、数值模拟和不同耦合条件下裂缝扩展研究等方面归纳了国内外的研究成果,提出了多场耦合作用下高混凝土坝水力劈裂试验仪器设备研制、试验测试技术、多场耦合作用下裂缝扩展机理及耦合机理、考虑结构裂缝任意性的数值模拟技术等尚待进一步研究的问题。
The research status of hydraulic fractures in concrete structures is reviewed.With regard to the existing problems in the research on hydraulic fractures in high concrete dams under multi-field coupling conditions,the worldwide results of hydraulic fractures in concrete structures are summarized from the perspectives of hydraulic fracturing theories,test techniques,numerical simulation methods,and crack propagation studies under different coupling conditions.Several prospects are proposed: test equipment and techniques for hydraulic fractures in high concrete dams under multi-field coupling conditions,crack propagation and coupling mechanisms for different coupling conditions,and numerical techniques considering arbitrary structural cracks.
The research status of hydraulic fractures in concrete structures is reviewed.With regard to the existing problems in the research on hydraulic fractures in high concrete dams under multi-field coupling conditions,the worldwide results of hydraulic fractures in concrete structures are summarized from the perspectives of hydraulic fracturing theories,test techniques,numerical simulation methods,and crack propagation studies under different coupling conditions.Several prospects are proposed: test equipment and techniques for hydraulic fractures in high concrete dams under multi-field coupling conditions,crack propagation and coupling mechanisms for different coupling conditions,and numerical techniques considering arbitrary structural cracks.
引文
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