薄壳人孔盖的设计研究

Design Study of Thin Shell Manhole Cover

过重的人孔盖不便于人孔的打开和封闭,为了减轻人孔盖的重量,笔者借鉴国外资料,提出一种薄壳人孔盖。理论计算表明,同等情况下,薄壳人孔盖的重量要比国标人孔盖减少近2/3,如果得到应用,一定会给设备的生产和应用带来极大的方便,同时还会带来一定的经济效益。

Too heavy manhole cover is not easy to open and closed, In order to reduce the weight of the manhole cover, the author draws on the foreign data, proposed a thin shell manhole cover. Theoretical calculations show the same circumstances, thin shell manhole cover than GB manhole cover weight to be reduced by nearly two- thirds. If applicable of the thin shell manhole cover, it will certainly bring great convenience to the production and application of the device, and also bring some economic benefits.