1, Shandong ductile iron manhole cover masonry masonry, should be in accordance with the Design Institute designed resin cover size to determine its inner diameter or length * width, radius, also can refer to the standard implementation. When laying well, it must be noted that the inner diameter of the wellhead should be in accordance with the inner diameter of the resin cover and grate, and that the resin cover should be installed with the road surface;
2, in order to maintain the cover of the aesthetic appearance of the surface pattern and handwriting clear, application sheet covered in resin covers or waste oil brush cover in asphalt pavement construction, prevent asphalt oil spray on the resin covers; in cement concrete pavement construction, application of plastic resin well cover, to prevent cement mortar with resin covers the surface damage, surface pattern, handwriting, can also complete the construction of water when the resin that covers the surface of clean;
3, in the asphalt pavement installation resin cover, must pay attention to avoid construction machinery directly rolling well seat, in the whole casting of the road, should be reserved in the road than the hole slightly larger hole, after asphalt paving after placement. To ensure the quality of resin covers placement to prolong the service life;
4, cement pavement well base installation, concrete casting thickness of 20CM beam with C25 at the wellhead smooth brick masonry, must maintain a well seat four indeed, overall smooth, not loose, and the width of concrete casting resin covers protective ring 40CM to the maintenance period in more than 10 days;
5, concrete or asphalt well base casting after laying open the lid, should be timely cleaning, avoid mortar or bitumen will check the resin covers and poured into one seat, so as not to affect the day after opening。
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