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以往关于木谷坊朽化速度的研究很多,但这些研究注重的问题都是基于田间木谷坊朽化速度与时间的关系,认为木谷坊的朽化是由风化因素决定的,没有建立木谷坊朽化速度与这些因素的相关方程。本研究观测了日本7座木谷坊6~9 a内的朽化速度。木谷坊质地为日本雪松和扁柏,除此之外,计算了坝上溢流的设计高水位、温度指数及最大积雪深度与木谷坊坝朽化速度相关关系。设计高水位由经验公式求得,温度指数和最大积雪深度从以往的研究中获得,研究结果表明,木谷坊的朽化速度与设计最高水位相关显著,坝建在陡坡河床情形下,温度指数和最大积雪深度对坝的朽化速度没有明显的影响。
In the past, there were many researches on the speed of mulberry decay, but the problems that these researches focus on are the relationship between mulberry mulberry decay rate and time. It is considered that mulberry mulberry decay is determined by weathering factors, and the speed of mulberry mulberry decay is not established and these factors Related equations. In this study, we observed the rate of thawing within 6 to 9 years in seven Japanese Kariya workshops. In addition, the quality of Hokuriku was cedar and Japanese cypress. In addition, the relationship between the designed high water level, the temperature index and the maximum snow depth and the vandalization speed of Kuregawa dam was calculated. The design of high water level is obtained from the empirical formula. The temperature index and the maximum snow depth are obtained from the previous studies. The results show that the deterioration rate of Mufangfang is significantly related to the designed maximum water level. Under the condition of steep slope, the temperature index and The maximum depth of snow has no obvious effect on the speed of dam degradation.