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本文扼要地介绍了国内外埋藏式钢管外压失稳试验研究概况,并描述了刘家峡水电站钢管抗外压失稳试验的破坏特征和研究成果,探讨了锚筋型式和不同布置方式对临界压力的影响,分析了钢管屈曲的规律性和锚筋应力状态。
This article briefly introduces the research status of the buried pipe external pressure instability experiment at home and abroad, and describes the failure characteristics and research results of the pipe external pressure instability test of the Liujiaxia hydropower station. The effects of the types of anchor bars and the different arrangements on the critical pressure The regularity of the buckling of the steel pipe and the stress state of the anchor tendons are analyzed.