住宅沥青车道偶发重载时，厚度与基层规格缺少依据

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提问者计划新建约600平方英尺的热拌沥青住宅车道，日常停两辆轿车，偶有配送箱式卡车和小型房车；普通报价为2英寸压实沥青加碎石基层，他因此不确定是否需加厚沥青或基层。

I'm planning a new hot-mix asphalt driveway (single family home, roughly 600 ft²). Most days it holds two cars, but a few times a year it takes heavier loads — a delivery box truck, and occasionally a small RV. Quotes I've seen for regular driveways assume 2 inches of compacted asphalt over a gravel base. My questions: Is 2 in of compacted hot mix enough for occasional heavy vehicles, or should I spec 3 in? Does the extra strength come more from the asphalt thickness or from the base? If the

来源：Arif Hossain · CC BY-SA 4.0 · 内容已摘录并由模型整理