【導(dǎo)讀】施工周期短、維修簡便等特點(diǎn)，而被廣泛應(yīng)用。地完成了爭創(chuàng)國優(yōu)的目標(biāo)。本文結(jié)合施工實(shí)踐就影響瀝青路面平整度的原因進(jìn)行分。析，并提出相應(yīng)對策。如規(guī)范允許基層頂面偏差10mm，當(dāng)用瀝青混合料將10mm. 難以控制，且反復(fù)找平表面容易離析，同時(shí)混合料浪費(fèi)也多。筑的高要求，之所以強(qiáng)調(diào)進(jìn)口攤鋪機(jī)主要原因是它能保證所鋪混合料均勻、表面平整，實(shí)踐證明進(jìn)口ABG型攤鋪機(jī)鋪筑效果最。佳，而國產(chǎn)攤鋪機(jī)幾次試鋪均未成功。為提高基層平整度及方便攤鋪機(jī)鋪筑，基層混合料集料最大粒徑宜適當(dāng)減小。于采用精良的施工機(jī)械，如好的穩(wěn)定粒料廠拌設(shè)備與進(jìn)口攤鋪機(jī)。調(diào)整，并檢查鋼絲拉力不得小于784N。攤鋪機(jī)帶全自動(dòng)調(diào)平裝置，能夠根據(jù)自動(dòng)找。過大會(huì)造成熨平板共振，使攤鋪機(jī)找平裝置處于不穩(wěn)定狀態(tài)而影響平整度。攤鋪機(jī)行駛方向發(fā)生偏斜時(shí)，必須及時(shí)校正。碾壓應(yīng)在混合料較高溫度。一致、壓力相等。否則輪胎軟硬不一，在碾壓

　　

【正文】 nd 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。s own roughness are different. The same thickness, turn on grades of batching because loose to spread coefficient buy than security heavy mixture their, so the roughness is not so good as security to mix . With mixing it under the condition first classly, one layer of larger than thickness ones of structure little in thickness has better roughness. 5 conclusions The surface that the roughness of road surface of pitch involves is very wide, there are a lot of influence factors, concern the whole course of road bed , road surface construction, the situation is plicated, some are caused by the mechanical performance , some are the manual operation , arrange for the fault to cause, we only could suit the remedy to the case and do a good job of every tiny link while constructing after fully researching and analysing the reason produced . The roughness of road surface of pitch is construction machinery , personnel39。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 .