original subgrade 中文意思是什麼
original subgrade
解釋
原土路基-
It indicates that although this procedure has introduced the mechanistic - empirical method, but still is not perfect in design theory : one is about bearing capacity evaluation method and device. the currently used device - benkelman beam is dropping behind the development of the pavement testing service ; the other is about the mechanistic method that used in overlay design. it simplifies the original pavement and subgrade as a whole half infinite space, this is not true in the real layered pavement structure
綜合分析了各種罩面設計方法的原理及其優缺點，對於我國目前設計規范中所採用的罩面設計方法進行了詳細的分析與研究，指出了它雖然已經採用了力學與經驗相結合的設計方法，但仍然存在著明顯的不足之處：一方面是舊路承載能力評價設備仍然採用貝克曼梁，檢測手段落後；另一方面，在力學設計方法中，對于舊路承載能力的評估忽略了舊路面結構的分層，而是採用了近似的彈性半空間體，給出了舊路頂面的綜合回彈模量。
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