| 路缘石上层采用普通混凝土 |
| 添加时间：2019/12/13 15:00:14 浏览次数： |
| 路缘石上层采用普通混凝土，其不透水性可以避免路面雨水倒灌至路面结构内，同时使得面层具有较强的结构强度；下层采用多孔混凝土，形成透水层，可以使路面结构内的水通过该透水层得到顺畅外排（通常道路同一横断面，路中要高于两边，路面结构内部水，在重力作用下向两侧流动，到达路面边即进入缘石的多孔混凝土层排出）。路缘石背面外侧在多孔混凝土层内有随缘石纵向延伸的内凹缺口孔涵，将渗排水引导排入路边相间的雨水井，从而彻底排出路面结构内部水。 Ordinary concrete is used for the upper layer of the curb, and its impermeability can prevent the rainwater from pouring back into the pavement structure, while making the surface layer have strong structural strength; porous concrete is used for the lower layer to form a permeable layer, which can make the water in the pavement structure drain out smoothly through the permeable layer (generally, the water in the same cross section of the road is higher than that in both sides, and the water in the pavement structure, Under the action of gravity, it flows to both sides, reaches the edge of the road, and then enters the porous concrete layer of the curb to discharge). Inside the porous concrete layer on the outer side of the back side of the curb is a concave hole culvert extending longitudinally with the curb, which will guide the seepage drainage into the roadside alternate rainwater wells, so as to completely drain the water inside the pavement structure. |
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