基于水平缝影响的蓄水期面板应力变形研究  

Based on the Effect of Horizontal Seam on the Stress-Deformation of the Faceplate in Storage Period

作　　者：王开拓[1] 罗永全 雷双超 王银涛 WANG Kai-tuo;LUO Yong-quan;LEI Shuang-chao;WANG Yin-tao(School of Civil and Transportation Engineering,Qinghai Nationalities University,Xining 810007,China;Qinghai Hydropower(Group)Co.Ltd.,Xining 810000,China;Zunyi Survey and Design Institute of Water Conservancy and Hydropower,Zunyi 563000,Guizhou,China)

机构地区：[1]青海民族大学土木与交通工程学院,西宁810007 [2]青海省水利水电(集团)有限责任公司,西宁810000 [3]遵义水利水电勘测设计研究院,贵州遵义563000

出　　处：《水利科技与经济》2020年第3期7-12,共6页Water Conservancy Science and Technology and Economy

基　　金：青海省基础研究计划项目(2019-ZJ-7048)。

摘　　要：以青海省石头峡面板堆石坝为样本案例,基于有限元分析方法,设置多种面板水平缝数量和宽度的方案,比较和分析蓄水期面板的应力和挠度的影响及其分布规律。研究证实,设置更多的水平缝可以在一定程度上改善面板应力应变状态,尤其可以显著弱化水平缝周围压应力,挠度与拉应力同样出现降低迹象,但这种变化不显著;缝体数无差异条件下,局部面板压应力与面板水平缝宽度呈反相关关系,但增加水平缝宽度时基本上不会影响到面板挠度。Shitouxia CFRD in Qinghai province is a study sample,this paper based on the finite element analysis method,set up a variety of faceplates,the number and width of the horizontal seam,comparison and analysis of the influence of the stress and deflection of the faceplate in storage period,research has proved that set up more horizontal seam can to a certain extent,improve the state of stress and strain of the faceplate,especially can significantly weaken compressive stress around horizontal seam,deflection and tensile stress also showed signs of lower,but the change was not significant;Under the condition of no difference in seam number,the local compressive stress is inversely related to the horizontal seam width of the faceplate,but increasing the width of the horizontal seam will not affect the deflection of the faceplate.

关 键 词：混凝土面板 水平缝 应力 挠度 

分 类 号：TV641.43[水利工程—水利水电工程]