在山区或丘陵地带,道路两侧的边沟通常采用砌石明沟拦洪排水。在叉路口的排洪沟的沟面铺设预制钢筋混凝土盖板,以便于行人和车辆通行。但是有些沟盖板使用不长的时间后即出现损坏,以致需要重新更换,造成道路维修费用的增加。一、损坏的形式通过对某大型铝冶炼加工厂厂区道路边沟盖板损坏情况的调查,发现损坏形式大致有以下三种。1.盖板支座边缘的板面裂缝(图1)。该裂缝一旦 In mountainous or hilly areas, the ditches on both sides of the road often use masonry ditches to flood control and drainage. Prefabricated reinforced concrete covers are laid at the ditch ditch of the fork to facilitate pedestrians and vehicles. However, some ditches have been damaged after a short period of use, resulting in the need to be replaced again, resulting in an increase in the cost of road maintenance. First, the form of damage Through a large aluminum smelting processing plant roadside ditch cover damage investigation found that the damage form roughly the following three. 1. Cracks in the edge of the cover support (Figure 1). The crack once