摘要
分析了坝下箱涵产生环向裂缝的机理成因,建立了变温与土压力、管身自重及管内水重联合作用下的坝下箱涵伸缩缝间距与纵向抗裂验算计算方法,给出了相应计算公式,具有工程应用价值.
The reason of circumferential crack on box culvert below dam is analyzed.The calculation formula of expansion joint spacin and longitudinal anti-crack under the action of poikilothermia and earth pressure and pipe dead load and water pressure in pipe on box culvert below dam is proposed.It has value in engineering applications.
出处
《江西水利科技》
2011年第4期250-252,265,共4页
Jiangxi Hydraulic Science & Technology
关键词
坝下箱涵
环向裂缝
抗裂
Box culvert below dam
Circumferential crack
Anti-crack
