| 刘光廷,李鹏辉,谢树南,张富德.碾压混凝土拱坝的铰结拱研究[J].水利学报,2002,33(6):0027-0032 |
| 碾压混凝土拱坝的铰结拱研究 |
| Jointed arch type RCC arch dam |
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| DOI： |
| 中文关键词: 铰结拱 膨胀混凝土塞 碾压混凝土拱坝 |
| 英文关键词: jointed arch RCC arch dam expansive concrete plug |
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| 中文摘要: |
| 本文介绍的碾压混凝土铰结拱式拱坝是在拱坝低温区中缝上设置混凝土塞，可以在水压作用下传递拱作用力而不明显增加坝体的应力，且能松弛拱坝运行期坝体混凝土温降引起的拉应力，可不必等待横缝灌浆即可蓄水，从而提前发挥工程效益.“铰结拱”已成功用于高百米以上、软基、高寒的某碾压混凝土拱坝，2000年10月水库已成功蓄水. |
| 英文摘要: |
| A new structure of RCC arch dam namely jointed arch is introduced. An expansive concrete plug is established at the upstream side of the central joint of dam. It not only can tranfer the force in the arch under the action of water pressure and not remarkably increase the stress in the dam, but also release the tensile stress caused by the temperature drop during operation of the dam. Consequently, the grouting of transverse joint is not necessary before the impounding of the reservoir. This technology has been successfully applied to the design of a RCC arch dam higher than 100m built on soft foundation in severe cold area. |
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