弹石路面的施工及养护经验介绍.doc

弹石路面的施工及养护经验介绍 一、弹石路面的特点和适用条件 弹石路面是用不规则的小块石铺砌的块了路面。与其他路面(如泥结碎石路面、水泥混凝土路面、沥青路面)比较，具有较高的抗压耐磨性能，使用周期长，铺砌技术简易，需要养护劳力少，在丰产石料地区铺筑投资较便宜等特点。适用于行车时速20~40公里/小时的 级公路上，使用年限15~20年，是一种晴雨可通车的过渡路面，适用铺筑于山区公路的急弯陡坡，干旱缺水和用其他粒料养护困难 稳定的路基上(已通车多年的道路上)。由于弹石路面表面粗糙有缝，车速不高，且有轻微振动，铺砌费工等缺点，在较高等级的道路上和大规模的新修公路工程中不宜采用。在目前还不能普及使用高级路面材料(如水泥、沥青)的情况下，为了适应交通量增大并满足铁轮车和履带车行使的路段，因地制宜，就地取材的铺筑弹石路面，不论对节约投资或减少养护劳力都具有一定的现实意义。 二、弹石路面的结构和质量要求 弹石路面是用不规则的小块石在稳定的砂垫层上铺砌的，它要求在强度均匀且平整又能透水的砂层上依靠弹石间的相互嵌挤连锁作用，形成坚实的整体，并且有足够的承载力。其结构可分为基层、垫层及铺砌层。它的使用质量主要取决于所用石料的耐磨抗压性能和路基的坚实稳定程度。 1、对基层的要求:必须具有坚实稳定的路基和完好的排水系engineering 1 GB150-98 2 GB50128-2005 vertical cylindrical steel pressure vessel steel welded tank code for construction and acceptance of 3 JB/ T4735-1997 steel welded atmospheric pressure vessel 4 GB50231-2009 mechanical equipment installation engineering construction and acceptance specification for 5 GB50275-98 compressor, fan and pump installation engineering construction and acceptance specification for lifting 6 HG20201-2000 construction installation engineering construction standard 7, HG ... Pressure gauges, using an installed spark arrestor for acetylene cylinders, illegal carrying, using gas cylinders, each operator fined 20 Yuan. Gas bottle without the hot sun exposure measures, responsibilities of team a fine of 50 Yuan. (7) at height and the opening and provisional protective measures have been taken, the responsible unit fined 200 Yuan, construction person in charge a fine of 50 Yuan. (8) no permit to work and the job in accordance with the provisions, on the job unit fined 300 yuan, the unit will charge a fine of 100 Yuan. 7.5.3 accident penalties (1) injuries fatalities directly punished 1~2 million. Direct responsibility for the accident and have the corresponding responsibility of leadership, such as concerning administrative sanctions, should be brought to the company or the relevant Department. (2) personal injury accident occurred, the direct punishment 0.5-10,000 yuan, responsible for the direct