揭普高速公路工程底基层施工组织方案.doc

高速公路底基层施工组织方案
一、 工程概况
（一）项目位置及设计标准
揭普高速公路第十六合同段为全线路面工程标，起于揭阳市锡场镇与新亨镇交界处的华清村西北侧，终于普宁市池尾的松柏领，桩号为K0+000～K45+222.13，全长45.222Km。
本合同段路面工程由广东省公路勘察设计院设计，主线为双向四车道沥青砼路面，路基宽度为26m。其中主线行车道面层采用热拌沥青砼，厚度为15cm，对于填方段干燥、中湿地基路段基层为36cm厚水泥稳定碎石，底基层为20cm厚水泥稳定粒料，潮湿地基路段另增15cm厚的未筛分碎石垫层。对于岩石挖方路段基层采用18cm厚水泥稳定碎石，下设15cm调平层。互通式立交匝道的面层及底基层与主线行车道相同，分别为10cm厚热拌沥青砼和20cm厚水泥稳定粒料，基层为32cm厚水泥稳定碎石，当匝道处于潮湿地段时，增设15cm厚的未筛分碎石垫层。互通式立交收费站及平交口采用27cm厚水泥砼，基层为20cm厚水泥稳定碎石，底基层为15cm厚水泥稳定粒料，并设15cm厚的未筛分碎石垫层。全线水泥稳定粒料底基层总量为：15cm厚的43460cm2、20cm厚的808428cm2 ，一阶段数量为：442409m2本标段工程建设标准及主要工程如下表：

Highway Construction Plan-base
First, project survey
(A) project location and design standards
Jiepu Highway 16th line of the road works contract segment for the standard, from the tin market in the town of Jieyang City, and the new town at the junction of Hang Wah Ching village northwest side of the pool was finally the end of the Evergreen Puning collar, Stake for the K0 +000 ~ K45 +222.13, full 45.222Km.
Section of this contract by the Guangdong Provincial Highway Survey & Engineering Design Institute, the main line for the two-way four-lane asphalt concrete pavement, subgrade width of 26m. One main line of the carriageway surface layer of hot asphalt concrete thickness of 15cm, the filling section of dry, wet ground in thick sections of grass-roots to 36cm cement stabilized gravel, sub-base is 20cm thick cement stabilized gravel, wet ground by the other sections 15cm thick gravel cushion without screening. The primary section of rock excavation by 18cm thick cement stabilized gravel, leveling layer consists of 15cm. Interchange ramp surface and sub-base and the main line of the same lane were 10cm thick concrete and asphalt thickness 20cm cement stabilized gravel, grass-roots to 32cm thick cement stabilized crushed stone, when the ramp is wet sites, the addition of 15cm thick hardcore no screening. Interchange toll stations and intersections with 27cm thick cement concrete, grass-roots to 20cm thick cement stabilized crushed stone, 15cm thick concrete sub-base for the stability of aggregates, and 15cm thick, is not based screening gravel cushion. Full range of cement stabilized gravel subbase total: 15cm thick 43460cm2, 20cm thick 808428cm2, a phase quantity: 442409m2 Lot construction standards and the major projects the following table:

a