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水泥就地冷再生的施工压路机的施工

来源:http://www.tclqgc.com/ 日期:2023-11-28 发布人:

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。在直线和不设超高的平曲线段,平地机由路肩向路中心进行刮平;在设超高的平曲线段,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 once by a vibrating roller, it should be preliminarily shaped using a grader immediately. On straight and non elevated flat curve sections, the grader scrapes the road from the shoulder to the center of the road; When setting a super high flat curve section, the grader scrapes it from the inside to the outside. If necessary, go back and scrape again. For local low-lying areas, use an iron pick to loosen the surface layer by more than 5cm, and level it with freshly mixed mixture. During the shaping process, the segregation of coarse and fine materials should be promptly eliminated. Both manual and mechanical removal of large, unbroken old road materials. When shaping, the high materials should be directly scraped out and should not form a thin layer of patching.

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。

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After the initial leveling of the grader is completed, the vibration roller stabilizes the high amplitude/low frequency once, and then the surveyor sets out and controls the elevation and cross slope at three points, namely left, middle, and right, according to quality control requirements (1 point at a straight section of 20 meters and 1 point at a bend of 10 meters), guiding the grader to carry out detailed leveling and achieve the purpose of adjusting the arch and slope. Ensure that the flatness and cross slope meet the design requirements. During construction, the principle of "better scraping than filling" should be adhered to. If additional materials are needed, when it is determined that a mixture of 5cm or more needs to be added, more cement should be added to the new material and the water content should be ensured to ensure adhesion. During rolling, it should not be loose or peeling.

在用平地机做后的终平工作时,一定要特别小心,确保对整个表面进行刮平,使其纵向顺适,路拱和超高符合设计要求。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。

When using a grader for final leveling work, special care must be taken to ensure that the entire surface is scraped flat, making it longitudinally smooth, and the road arches and superelevation meet the design requirements. Do not drop the blade in low-lying areas. It is necessary to scrape off the locally raised part and sweep it out, because there is no bonding force between these materials and the lower layer, which can easily cause peeling and inability to press during rolling. The final leveling should be carried out carefully, and for local low-lying areas, no further filling is required. It can be left for treatment when laying the asphalt surface layer.

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, use a vibrating roller to perform 1-2 rounds of compaction. If the surface of the mixture is air dried before compaction, use a sprinkler truck to spray and replenish water if necessary to prevent it from being crushed. During initial compaction, use high amplitude/low frequency vibration modes to compact the lower part of the layer, and then use low amplitude/high frequency vibration modes to compact the upper part of the regeneration layer. The principle of rolling is to start with light and then heavy, rolling from the roadside to the middle of the road in sequence. The rolling speed should be controlled at a low speed, and attention should be paid to the width of the wrong wheel and not to miss the rolling. In addition, when using a vibratory roller, attention should be paid to the following points: if there are oil and gas pipelines crossing within a range of 1 meter on both sides of the road, vibration mode compaction cannot be used. The use of high amplitude/low frequency vibration modes for compaction often disturbs the material at the top of the layer, especially the surface. However, leveling with a grader can be corrected before using low amplitude/high frequency vibration mode for compaction. If the material continues to be compacted after reaching its high density, it will damage the material and reduce its density. Prevent overpressure based on the thickness and external manifestation of the mixture.

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。后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。

The roller is driven at low speed in first gear, and the two rollers are designed to cross the centerline of the road construction when half of the large wheels can be interchanged. When the rear wheels have completed the full width of the road surface, it is considered as one pass. Roll 2-3 times, with the principle of rolling from both sides to the middle of the road to maintain the road arch. Afterwards, the vibrating roller quickly walks once to remove obvious wheel marks, and the rolling is completed. It is strictly prohibited for road rollers to turn around or brake sharply on completed or ongoing road sections, and the surface of the regeneration layer should be ensured not to be damaged. During the compaction process, the surface of the regeneration layer should always be kept moist. If the water evaporates too quickly, a small amount of water should be sprinkled in a timely manner, but it is strictly prohibited to sprinkle a large amount of water for compaction. During the rolling process, if there are "springs", looseness, peeling and other phenomena, they should be promptly flipped open and mixed again (with an appropriate amount of cement) or treated with other methods to meet the quality requirements.

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With the summary above on cold regeneration machine leasing, we hope it can be helpful to our customers. If you have any questions or need help, please click on our website: http://www.tclqgc.com Or call to inquire, we will do our best to solve it for you

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