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冷再生机的整形及碾压
来源:https://www.sddhfjx.com/ 日期:2022-11-30
整形及碾压:
Shaping and rolling:
再生混合料拌和均匀并由振动压路机稳压1遍后,应立即用平地机初步整形。在直线和不设平曲线段,平地机由路肩向路中心进行刮平;在设的平曲线段,平地机由内侧向外侧进行刮平。必要时再返回刮一遍,对于局部低洼处,应用铁镐将其表层5cm以上耙松,并用新拌的混合料进行找平。整形过程中应及时消除粗细料离析现象。既由人工配合机械把大块没有破碎掉的旧路料清除掉。整形时应将高处料直接刮出路外,不应形成薄层贴补现象。
After the recycled mixture is evenly mixed and stabilized by the vibratory roller for one time, the grader shall be used for preliminary shaping immediately. In the straight line and the section without horizontal curve, the grader scrapes from the shoulder to the road center; In the set flat curve section, the grader scrapes from the inside to the outside. If necessary, return and scrape again. For local low-lying areas, use a pickaxe to loosen the surface layer more than 5cm, and level it with fresh mixture. During the shaping process, the segregation of coarse and fine materials shall be eliminated in time. The old road materials that have not been broken are removed manually and mechanically. During shaping, the high materials shall be scraped out directly, and the thin layer of patching shall not be formed.
平地机初平完成后,由振动压路机高幅/低频稳压一遍,然后由测量工按照质量控制要求分左、中、右三点放样控制标高和横坡度(直线段20米1点,弯道10米一点),指导平地机进行细致找平,达到调拱度、调坡度的目的。保证平整度、横坡度符合设计要求。施工中要坚持“宁刮不补”的原则,如果要补料的话,当确定要补5cm以上的混合料,补料的时候,需在新补料中多掺水泥并保证含水量,以确保粘结性,碾压的时候能不松散不起皮。在用平地机做最后的终平工作时,一定要特别小心,确保对整个表面进行刮平,使其纵向顺适,路拱和符合设计要求。不要在低洼处落下刀片,必须将局部高出部分刮除并扫出路外,因为这些料与下层料之间是没有粘结力的,碾压的时候容易造成起皮压不住现象。终平应仔细进行,对于局部低洼之处,不再进行找补,可留待铺筑沥青面层时处理。
After the initial leveling of the grader is completed, the vibratory roller will stabilize the voltage in high amplitude/low frequency for one time, and then the surveyor will set out and control the elevation and cross slope in three points (one point at 20m in straight section and one point at 10m in curve) according to the quality control requirements to guide the grader to carry out careful leveling, so as to achieve the purpose of adjusting the camber and gradient. Ensure the flatness and cross slope meet the design requirements. During the construction, the principle of "better scraping than mending" shall be adhered to. If it is necessary to replenish materials, when it is determined that more than 5cm of mixture shall be added, more cement shall be added to the new materials and the water content shall be guaranteed to ensure the cohesiveness, and no looseness or peeling shall occur during rolling. When the grader is used for final leveling, special care must be taken to ensure that the entire surface is scraped to make it longitudinal and smooth, and the road camber meets the design requirements. Do not drop the blade in the low-lying area. The local higher part must be scraped off and swept away, because there is no cohesive force between these materials and the lower layer, which is easy to cause peeling when rolling. The final leveling shall be carried out carefully. For local low-lying places, no repair is required, but it can be left for the asphalt surface course.
找平完毕后由振动压路机进行1-2遍碾压,碾压前如混合料表面风干,必要时由洒水车喷洒补水,以防压不住。初压时使用高幅/低频振动模式,以便压实层面的下部,随后使用低幅/高频振动模式压实再生层的上部。碾压原则先轻后重,自路边向路中依次碾压,碾压速度应控制在低速度,注意错轮宽度并且不漏压。另外,使用振动压路机的时候,应注意以下几点:路面有油气管线横过路管的两侧1米范围内,不可采用振动模式压实。使用高幅/低频振动模式压实往往会扰动层面顶部的材料,尤其是表面。不过在使用低幅/高频振动模式压实之前用平地机找平可以修正过来。若达到材料的大密度后仍然继续碾压,则会破坏材料,降低材料的密度。根据混合料的厚度和外在表现形式防止过压。
After leveling, the vibratory roller shall be used for rolling for 1-2 times. If the mixture surface is dry before rolling, the watering cart shall be used for watering if necessary to prevent it from failing to roll. During initial compaction, high amplitude/low frequency vibration mode is used to compact the lower part of the layer, and then low amplitude/high frequency vibration mode is used to compact the upper part of the regeneration layer. In principle, the rolling shall be light first and then heavy, rolling from the roadside to the middle of the road in turn. The rolling speed shall be controlled at a low speed. Pay attention to the width of staggered wheels and no missing rolling. In addition, when using the vibratory roller, the following points should be paid attention to: if there are oil and gas pipelines crossing the road within 1m on both sides of the road pipe, the vibratory mode cannot be used for compaction. Compaction using high amplitude/low frequency vibration modes tends to disturb the material at the top of the layer, especially the surface. However, leveling with a grader before compaction in low amplitude/high frequency vibration mode can be corrected. If the rolling continues after reaching the high density of the material, the material will be damaged and the density of the material will be reduced. Overpressure shall be prevented according to the thickness and external manifestation of the mixture.
由18-21T光轮压路机进行终压。压路机以1档低速行驶,2台压路机以错1/2大轮能互换过道路施工中线为准,后轮压完路面全宽时即为一遍。碾压2-3遍,碾压原则由两侧至路中,以保持住路拱。由振动压路机快速行走一遍除去明显轮迹,碾压结束。严禁压路机在已完成的或正在碾压的路段上调头或急刹车,应保证再生层表面不受破坏。碾压过程中,再生层的表面应始终保持湿润,如水分蒸发过快,应及时补撒少量的水,但严禁大量洒水碾压。碾压过程中,如有“弹簧”、松散、起皮等现象,应及时翻开重新拌和(加适量的水泥)或用其他方法处理,使其达到质量要求。
Final compaction is carried out by 18-21T smooth wheel roller. The road roller shall be driven at a low speed of gear 1, and the two road rollers shall be subject to the construction center line that can be interchanged with one half of the wheels, and it shall be regarded as one pass when the rear wheels have finished rolling the full width of the road. Rolling for 2-3 times, from both sides to the middle of the road in principle, to keep the crown of the road. The vibratory roller shall move quickly once to remove obvious wheel marks, and the rolling is completed. It is forbidden for the roller to turn around or brake suddenly on the completed or rolling road section, and the surface of the regeneration layer shall not be damaged. During the rolling process, the surface of the regeneration layer shall always be kept wet. If the water evaporates too fast, a small amount of water shall be sprinkled in time, but it is strictly prohibited to sprinkle a large amount of water for rolling. In case of "spring", looseness, peeling and other phenomena during rolling, timely turn over and remix (add proper amount of cement) or use other methods to make it meet the quality requirements.
因为水泥的关系,在施工期间,从加水拌合至碾压成型洒水养生,不应超过4个小时。
Due to the cement, during the construction period, it should not exceed 4 hours from the time of adding water and mixing to the time of rolling forming and watering for curing.
以上就是为大家介绍的有关济南冷再生机的详细的介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以的态度,为您提供服务https://www.sddhfjx.com
The above is a detailed introduction to Jinan cold regenerator, and I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with our attitude https://www.sddhfjx.com
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