某导流洞进口渐变段明洞结构三维应力及配筋分析  

Analysis on 3D Stress and Reinforcement Arrangement of Opening Section at Inlet Transition of A Diversion Tunnel

作　　者：孙斌[1] 葛瑶[2] 张为法 SUN Bin;GE Yao;ZHANG Weifa(PowerChina Northwest Engineering Corporation Limited,Xi'an 710065,China;Shaanxi Province Institute of Water Resources and Electric Power Investigation and Design,Xi'an 710001,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065 [2]陕西省水利电力勘测设计研究院,西安710001

出　　处：《西北水电》2018年第6期89-91,共3页Northwest Hydropower

摘　　要：随着中国水电站工程规模的增大,导流隧洞的工程规模、断面尺寸及作用水头也在逐渐增大。受地质条件约束,部分大型导流洞进口渐变段必须采用明洞结构型式。以某水电站导流洞进口渐变段明洞结构为例,对其结构厚度进行三维有限元敏感性分析,确定出满足设计要求的结构厚度,并对结构进行配筋设计。With increment of the hydropower engineering scale in China,scale,section dimension and acting head of the diversion tunnel are increasing gradually.Restricted by geological conditions,the transition section at inlet of some large diversion tunnels has to apply the open-cut tunnel in structure.An open-cut transition section of the diversion tunnel in a hydropower project is exampled.Its structural thickness is analyzed with 3 D finite element in term of sensitivity to finalize its thickness that can satisfy the design requirement.And reinforcement for this structure is arranged as well.

关 键 词：渐变段 结构厚度 敏感性分析 配筋设计 

分 类 号：TV672.[水利工程—水利水电工程]