gradation in size 中文意思是什麼
gradation in size
解釋
粗細級配-
Based on the chang - yu highway in julin province, this paper focus on gap - graded asphalt mixtures. aggregate grading of the gap - graded hma was designed by means of void design procedure. this paper give out a kind of new gradation of stone matrix asphalt. at the same time, this paper also studies the effect of aggregate size on road - related performance in some different gradings
本文以吉林省長余高速公路為依託,從瀝青混合料的結構形態入手,利用體積法,對骨架密實型級配類型的瀝青混合料的級配進行研究,提出新型的瀝青馬蹄脂級配,並針對不同級配的瀝青馬蹄脂碎石混合料,全面分析了粗,細集料的粒徑變化對其各種路用性能的影響。 -
A certain thickness of sand cushion of a certain size or gradation is paved between the foundation and ground in this new method. when earthquake happens the sand cushion will have plastic shearing strain, reducing the input of high frequency volume, thus consume the earthquake energy form substrate. it is showed in shaking table experiments that there is relevant slippage between foundation and sand cushion, which can prevent the seismic energy from being passed to the above structure and thus reduced the seismic role for the above structure
在建築物的基礎與地基之間鋪設一定厚度、某種單一粒徑或級配砂墊層,在地震作用時砂墊層發生的塑性剪切變形,減少地震波高頻分量的輸入,從而消耗了下層傳來的地震能量;振動臺試驗表明,當振動發生時,基礎與砂墊層之間有明顯的滑移產生,這就對地震能量向上部結構的傳遞起到了隔斷作用,因而對上部結構起到了減震作用。
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