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乌石高速公路处于高寒干旱风沙较大的绿洲——荒漠地带,局部路段路面行车道出现了比较严重的车辙、推移、拥包和沙阻等病害,经过路况调查和现场取芯试验检测,其病害原因基本由内因既工程材料组成和外因即交通及气象等影响因素造成。高速公路路面病害实施处理需要分幅分别处理和分幅管制交通,为了节省公路养护改造工程造价和加快施工速度,缩短工期,就要采用快速施工的办法处理病害,我们将发生病害较严重的路段的沥青油面,采用铣刨机铣刨的方法,重新铺筑上下面层,并且重新调整了沥青混合料骨料级配;硬化了中央分隔带部分,以利于提高高速公路路面承受车辆重载能力和满足风积沙顺利通过路面的要求。
The Wushi Expressway is located in an oasis-desert area where cold and windy sand of the cold arid region is relatively large. Some serious diseases such as rutting, passing, bagging and sand drag appear on the road surface of some sections of the road. After the traffic investigation and on-site coring test, The reason is basically caused by the internal factors, such as engineering materials and external factors, such as traffic and weather. In order to save the cost of road construction, to speed up the construction speed and shorten the construction period, it is necessary to adopt the fast construction method to deal with the disease, and we will have the more serious road disease Of the asphalt oil surface, the use of milling machine milling method, re-paving the upper and lower layers, and re-adjust the aggregate gradation of asphalt mixture; hardening of the central partition with the part of the highway to help improve the road to withstand heavy vehicles Capability and Satisfaction Windy sand passes the requirements of the road smoothly.