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近十年来,我国先后兴建了枫树坝、石泉、岩屋潭、牛路岭等空腹重力坝和风滩空腹重力拱坝,其中枫树坝、凤滩和牛路岭工程在空腹内设置了厂房。现除牛路岭工程正在施工外,凤滩工程已初步建成,其余已竣工,均正常运行。实践证明,这种坝型有如下主要优点:1.在河床狭窄、洪水大时,能解决泄洪与厂房布置的矛盾,避免地下工程;2.在空腹内不设置厂房时,能减少水下工程量;3.由于坝体内有空腹,能降低扬压力,有利于坝体稳定;4.由于上述原因创造了某些有利的施工条件,能使工程在较短内时间建成。根据大量的科学试验和工程实践,现已基本掌握了空腹坝设计的主要方法和施工的主要措施,并提供了坝内厂房运行经验,为今后的坝工建设增添了一条新的途径。现有关单位还在继续研究、总结,本刊先发表这篇文章,以后将陆续刊登。
In the past ten years, China has successively constructed the Fasting Gravity Dam and Fengtan Fasting Gravity Arch Dam, such as Maple Dam, Shiquan, Iwatanku, Niuluoling, among which Fengshuba, Fengtan and Niuluiling projects have set up factories in the fasting area. In addition to cattle Lu Ling project under construction, Fengtan project has been initially completed, and the rest have been completed, are normal operation. Practice has proved that this type of dam has the following main advantages: 1. In the riverbed is narrow, the flood is large, can solve the contradiction between flood discharge and plant layout, to avoid underground works; 2. In the fasting without a plant, can reduce the underwater project 3. Due to the fasting in the dam body, the hoisting pressure can be reduced, which is in favor of the stability of the dam body. 4. Due to the above-mentioned reasons, some favorable construction conditions are created and the project can be completed within a relatively short time. According to a large number of scientific experiments and engineering practices, the main methods for the design of fasting dam and the main construction measures have been basically mastered, and the operation experience of the dam factory has been provided, which adds a new way for the dam construction in the future. Now the relevant units are still continuing to study, concluded that this publication first published this article, will be published one after another.