【正文】 adopting the land leveller homework in the past, its shorting is high Cheng, thickness is difficult to control, and make level repeatedly the surface is easy to emanate, at the same time the mixture is wasted more more too. Shanghai and Nanjing and owner , expressway of airport , according to standardize standard newly , put forward mixture concentrate factory on mix , import the paver not to pave the high demand built, it is that it can guarantee the mixture paved is even , the surface is levelled to put emphasis on importing the main reason of the paver, such indexes as Gao Cheng , verticalhorizontal slope , thickness ,etc. can meet the designing requirement . Is it import Model ABG paver is it build result to be best to pave , but domestic paver is it is it succeed in to pave to try on several times to practice has proved. To design thickness person who exceeds 30cm can divide into two is it build to pave , pave width control at 68m result better roughness having. Control the largest footpaths of the mixture and water content For improve at the basic level roughness and help paver is it build to pave, at the basic level mixture collect material heavy grain should be proper to reduce directly most. Because collect material grains of heavy footpath, mixture easy to is it emanate to produce, and to mix , pave wearing and tearing of equipment even heavy. So, reduce and collect the largest footpaths of material properly and favorable to the improvement of the paver homework and roughness of top surface at the basic level. In addition, the control of the water content of mixture construction is also very important, it influences the board body of the structure to take shape small that the water content is passed, it is difficult that the water content is too big to roll shaping, and apt to form the big wave of road surface, cause the roughness at the basic level to reduce, even cause the structure layer to shrink and fracture. Practice indicates , must begin from basic unit while improving the roughness of road surface of pitch , and the key of improving the construction quality at the basic level lies in adopting the superior construction machinery, if a grain of material factory of good stability mixes the equipment and imports the paver. Influence of 2 construction machinery homework Paver Accurate degree of basic steel wire and device It is in not constructing last layers of tightwire walking we, in, above layers of datum that walk snow prize last method, have received better result. Bottom surface layer before constructing, want piece draw handy on is it ask datum line , instrument of sensor to bear first(23mm steel wire rope), then it set up well all (from 10m),according to hanging wire that measure being the higher to confirm height , location of steel wire per of. Should measure , adjust conscientiously meticulously , check steel wire pulling force and can39。C90176。t suddenly change , in case that mixture was it pass or take place and split to produce. Roll the control of temperature The temperature control of the pitch mixture is a key in the pitch road surface construction course, scene should have special messenger responsible for to e skip, after paving, before rolling, in rolling and roll temperature of the end test. Is it should go on most favorable under the high temperature in mixture to roll , generally force down in 120176。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。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 f