坝下涵管纵向内力计算与伸缩缝间距设计  

Calculation on longitudinal inner forces and space design of expansion joints on embedded pipes below dam

作　　者：蔡勇斌 周雪芳 蔡勇平 蔡晓鸿 

机构地区：[1]江西省吉安市水利局,江西吉安343000 [2]江西省泰和县水利水电勘测设计室,江西泰和343700 [3]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》2012年第1期16-18,26,共4页Dam & Safety

基　　金：江西省水利厅科技项目(KT201130)

摘　　要：建立了变温与均匀内水压力、土压力、管身自重及管内水重联合作用下的坝下涵管纵向拉力、纵向弯矩计算方法,导出了坝下涵管伸缩缝间距与轴向抗裂验算计算公式。With effect of temperature change, inner water pressure, soil pressure, deadweight and water weight, the calcu- lation method on longitudinal inner force and flexural moment of embedded pipe below dam was established and the for- mulas of space design of expansion joints and crack resistance check were derived.

关 键 词：坝下涵管 纵向内力 伸缩缝 

分 类 号：TV134[水利工程—水力学及河流动力学]