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在断层破碎带发育的地基上建造拱坝,常采用混凝土置换体的工程措施来增加断层滑移面上的抗滑力和减小压缩变形,以保证坝肩的稳定.但是国内外工程界对置换体的这些效应及其保证效应的措施是有争议的.本文结合我国某拱坝采用混凝土置换体的措施,用粘弹—塑性理论研究置换体的抗剪效应,用有限元法研究减小压缩变形的效应.
The arch dam is built on the foundation where the fault fracture zone develops, and the concrete replacement body engineering measures are often used to increase the anti-sliding force on the slip surface of the fault and reduce the compression deformation to ensure the stability of the abutment. However, the engineering community at home and abroad These effects of displacement bodies and their guarantee effect measures are controversial. This paper combines the concrete displacement measures of an arch dam in China, and studies the shear effect of displacement bodies using the visco-elastic-plastic theory, and uses the finite element method to study the reduction. The effect of compression deformation.