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碾压混凝土拱坝诱导缝及其等效应力强度 被引量:4
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作者 渠亚伟 宁利中 +2 位作者 宁碧波 田伟利 刘爽 《黑龙江大学工程学报》 2018年第1期7-11,共5页
由于修建碾压混凝土拱坝的方法以及拱坝结构本身的特点,造成温度应力对结构的影响较为严重,产生的温度裂缝对拱坝坝体和结构的危害较大,所以采用人为设置的诱导缝来减弱温度裂缝对拱坝的危害。列举了诱导缝的形式以及已修建的拱坝中使... 由于修建碾压混凝土拱坝的方法以及拱坝结构本身的特点,造成温度应力对结构的影响较为严重,产生的温度裂缝对拱坝坝体和结构的危害较大,所以采用人为设置的诱导缝来减弱温度裂缝对拱坝的危害。列举了诱导缝的形式以及已修建的拱坝中使用诱导缝的实例,讨论了拱坝诱导缝的等效强度以及混凝土断裂实验的有关内容,为诱导缝相关问题的进一步研究提供了参考。 展开更多
关键词 碾压混凝土拱坝 诱导缝 等效强度 断裂试验
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HE SPATIO-TEMPORAL STRUCTURE OF BINARY FLUID CONVECTION WITH HORIZONTAL FLOW 被引量:30
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作者 ningli-zhong YOSHIFUMIHarada +1 位作者 HIDEOYahata LIJian-zhong 《Journal of Hydrodynamics》 SCIE EI CSCD 2004年第2期151-157,共7页
The convection structure in a rectangular channel with a horizontal flow forΓ = 12 was studied. The simulations were preformed by solving the hydrodynamic equations using theSIMPLE method. The convective behavior in ... The convection structure in a rectangular channel with a horizontal flow forΓ = 12 was studied. The simulations were preformed by solving the hydrodynamic equations using theSIMPLE method. The convective behavior in an absolutely and convectively unstable regime wasstudied. The results show that the two types of convection patterns in this system appear dependingon the convection intensity and horizontal flow. A periodically localized traveling wave state wasfound in this system. 展开更多
关键词 CONVECTION horizontal flow localized traveling wave absolute instability convective instability
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