坝下埋管环向裂缝与轴向抗裂验算  

Calculation on circumferential crack and axial crack resistance of embedded pipe below dam

作　　者：蔡勇斌 蔡勇平 吴韶华 

机构地区：[1]江西省吉安市水务局,江西吉安343000 [2]江西省吉安市水利水电规划设计院,江西吉安343000

出　　处：《大坝与安全》2008年第4期1-3,共3页Dam & Safety

摘　　要：分析了坝下埋管运行后产生环向裂缝的原因,建立了考虑变温和土压力联合作用下的埋管伸缩缝间距与轴向抗裂验算的计算方法,并给出了相应计算公式,方法可供设计人员参考。This paper analyzed the cause of circumferential crack of embedded pipe below dam and gave a calculation method on its expansion crack distance and axial crack resistance in the situation of varying temperature and earth pressure. Further more, correlative computation formula was advanced for reference.

关 键 词：坝下埋管 环向裂缝 抗裂 

分 类 号：TV64[水利工程—水利水电工程]