【正文】 s quality , prehensive reflection of petence of operating, only strengthen the management of construction site, organize meticulously and construct , could guarantee the roughness of road surface , improve the project quality of road surface . 。t be too slow, otherwise will influence production efficiency . Pave the speed to think after practice is pared: It is above layer should control at ,China, under layers of 24m/min fine. Paving should not generally change the speed at will in the course, because the speed changes and must result in paving the aspect to keep closely knit degree and change in advance , thus have differences , the roughness of road surface of influence to press the solidity finally. Transport the material vehicle and cooperate with the paver one While paving the homework, it is incongruous to often cooperate with paver because of transport the material vehicle and can not operate skilledlying, in front of making the mixture spill and drop on the paver to walk the track, if it can make the paver rock from side to side to remove in time, cause and adjust the angle of elevation of flat system work and change , influence the roughness of road surface automatically. So, special messenger must responsible for manding moving backward , forbid transporting the skip and bumping into the paver. Treatment of the construction joint What the pitch road surface construction joint is dealt with has certain influence on roughness fine or notly, it is better in roughness to often pave the highway section in succession, some data of one and seam are relatively bad. So, the seam level is one of the important factors of restricting the roughness. The key of handling the seam well should be willing to to excise connecting, check the roughness of tip with 3m straightedge, regard paving the aspect straightedge and breaking away from some as demarcation line , cut not sewing by cutting machine it dig except that. Spread seam adopt oblique to roll law is proper to bine artificial to make level , can dispel the not levelling of seam newly, two smoothgoing to link up highway section before and after making. Mend artificially at the scene Construction among the course, no matter which kind of reason, mixture mix a small amount of withered material, spend the material, is it get road surface must dig except that , change the qualified mixture pletely to pave. Artificial to fill and lead up mixture to be impossible to reach paver pave petence that build , will inevitablely influence the roughness of road surface . Treatment of the either end of a bridge and expansion joint Roughness fine road surface, must with reduce and dispel either end of a bridge not to jump train bine together, fortable problem that the ones that could settle the expressway well drive a vehicle. ShanghaiNanjing expressway and Nanjing airport expressway pay close attention to either end of a bridge jump the train issue, such as is it fill out embankment bore , adopt project nature good material fill out and build the either end of a bridge embankment first to adopt, support and shake the road roller to deal with the corner by reducing subsiding in the future of either end of a bridge embankment with hands, have received very good result. Because the shock power that the vehicle produces while going at a high speed on the expressway is great, the expansion joint of modes in Chinese operatic music of domestic rubber can not stand the highspeed impact of driving a vehicle of large volume of traffic. So, Shanghai and Nanjing, the expressway of airport of Nanjing is right to be large, bridge floor, bridge of China, expansion joint is it import Germany to adopt without exception and China and Germany enter into partnership Jiangsu mao rein in bridge enclosure mao that Co., Ltd. produce rein in the expansion joint, this kind of expansion joint is that nowadays generally acknowledged performance is reliable in the world and and durable flexible device of bridge floor, install result of use to be obvious, it is steady and fortable for bridge floor to drive a vehicle, seam jump the train phenomenon. Relation of 4 road surface structure types and roughness Find while constructing , adopt the same paver and the same craft of rolling, paved different kinds of road surface structure layer, its one39。t vary the speed or layover to pave at will . We feel in the course of constructing this is a key link of improving the roughness of road surface . Pave speed to be too fast , easy to is it pave layers of superficial thick particle under pressing plateform along pave direction slip to cause, make surface thick particle rear appear light hole little cavity , thus influence surface one layer of roughness and press closely knit degree in advance。C, press and is not lower than 70176。t suddenly change , in case that mixture was it pass or take place and split to produce.