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长余高速公路是国家和吉林省“九五”期间重点公路建设项目,全长160.8公里,设计行车速度为120公里/小时,路基宽度28米,路面宽度2×11.75米,路面结构设计:下面层为粗粒式AC-251型密集配沥青混凝土、中面层为中粒式AC-201型密集配沥青混凝土、沥青混凝土矿料设计采用石灰岩,上面层为SMA-16型改性沥青骨架嵌挤密实型、沥青混凝土矿料设计为安山岩。长余高速公路沿线石质资源极其匮乏,为保证其沥青混凝土路面的施工质量全面达到技术规范要求,决定对其面层碎石采用业主与施工单位联合组织公开招标的形式进行统一采购供
Changyu Expressway is a key highway construction project undertaken by the state and Jilin Province during the “Ninth Five-Year Plan”, with a total length of 160.8 kilometers and a design speed of 120 km / h. The width of the embankment is 28 meters and the width of the road is 2 × 11.75 meters. : The lower layer of coarse-grained AC-251 type with asphalt concrete, the middle layer of medium-sized AC-201 type with dense asphalt concrete, asphalt concrete mineral design limestone, the top layer of SMA-16 modified asphalt Skeleton embedded crowding compact, asphalt concrete ore designed as andesite. In order to ensure the construction quality of its asphalt concrete pavement fully meet the technical requirements, it is decided to make unified procurement for its surface gravel adopting the form of open bidding jointly organized by the owner and the construction unit