| dc.description.abstract | Domestic manhole damage to the maintenance, is still largely dependent on expert experience or the maintenance of the manufacturer’’s suggested maintenance related operations, has yet to establish a complete and practical techniques for the maintenance of the construction to follow. Therefore, in the actual conduct of manhole the maintenance, the location of different construction materials used maintenance to what kind of engineering, construction restrictions in place, how such issues as supervision, there is no clear method to follow or make reference to to provide guidance to maintenance works. And roughness in the completion of acceptance by direct regulation of the accuracy of 3 meters can meet the demand, need to be further confirmed the effectiveness of its quality. The purpose of this study that domestic manhole the maintenance method, standard operating procedures and acceptance criteria developed for the future maintenance of flexible pavement construction works to set norms of reference, and engineering and maintenance units, units and contract supervision business, there are clear norms to follow, in order to ensure quality completion. At the same time, this will also be looked at 3 meters and 1.5 meters straightedge regulation on small-scale construction and acceptance on the accuracy of 1.5 meters by the study that the direct regulation of a relatively good accuracy.
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