The article introduces the general character of soft soil roadbed and the treatment scheme of sand cushion and plastic drain board.
介绍了软土路基的共性，砂垫层、塑料排水板处理方案。
The utility model is a water grating board which is convenient to drain. The utility belongs to water grating used in municipal works and sewers of streets and dwelling communities.
一种方便排水的水箅盖，属于市政工程、道路、生活小区内等下水管道上使用的水箅盖。
The utility model is a water grating board which is convenient to drain. The utility belongs to water grating used in municipal works and sewers of streets and dwelling communities.
一种方便排水的水箅盖，属于市政工程、道路、生活小区内等下水管道上使用的水箅盖。
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