路缘石技术交底.doc

交底内容：
1、 本工程道路缘石使用材料是：预制人行道缘石规格为15×30×99.5cm，包括A型立缘石和B型立缘石。车行道部分安装A型立缘石，人行道部分安装B型立缘石。
2、 测量放线：
（1） 车行道缘石利用机动车道中6%水泥级配碎石稳定层两侧部分作为基础垫层，人行道缘石在原地基压实后作为基础垫层。
（2） 路面中线校核后，在路面边缘与缘石交界处放出缘石线，直线部位每10m、曲线部位每5~10m、路口及分隔带、安全岛等圆弧每1~5m设一桩，也可用皮尺画圆并在桩上标明缘石顶面标高。
3、 刨槽：
按桩的位置打白灰线，以线为准，按设计要求宽度向外刨槽。靠近路面一侧，比线位宽出少许，一般不大于5cm。刨槽深度可比设计加深1~2cm，以保证基础厚度，槽底要修理平整。
4、 铺筑C10底座砼：
按照设计要求宽度铺筑缘石C10底座砼厚15cm，，养护3天后方可立缘石。
5、 安装缘石：
（1）安装缘石时，先用2cm厚 1：3水泥砂浆找平，再按设计标高安装缘石。
（2）缘石要安正，切忌前倾后仰，缘石顶线应顺直圆滑平顺，无凹进凸出前后高低错牙现象，平。石线要求顺直圆滑、顶面平整，符合设计标高要求。
（3）缘石安装经检查合格后，即浇筑缘石后座，并振捣
Cards on the table contents:
1, the project road curbs using materials: precast sidewalk curbs specification 15 × 30 × 99.5cm, including the A-and B-Li Yuan Li Yuan Shi Shi. Carriageway part of the installation of A-type legislation curbs, sidewalk part of the installation of B-type legislation curbs.
2, Measure for:
(1) The use of motor vehicle roadway edge of Stone Road, 6% of cement in the stable layer of graded gravel cushion on both sides of part of the basis, the sidewalk edge of the foundation stone in the original basis after compaction cushion.
(2) After checking the road center line, the edge of the road junction with the release of Curb curbs, linear part of each 10m, part of each curve 5 ~ 10m, road junctions and medians, pedestrian refuges arc set one for each 1 ~ 5m, but also available measuring tape marked with a circle and the edge of the stone pile top elevation.
3, the router:
Position by playing white ash pile line to line as, by design width of the outside router. Near the road side, than the line out a little bit wide, generally not more than 5cm. Router design better than the depth of 1 ~ 2cm, to ensure that the basis of the thickness of flat bottom to be repaired.
4, paving concrete base C10:
In accordance with the design width of the paved edge of stone thick concrete base C10 15cm,, conservation of 3 days before the Legislative Yuan Shi.
5, the installation Curb:
(1) When installing curbs, first leveling 2cm thick 1:3 cement mortar, and then design elevation and installation of curbs.
(2) Curb to safety is, should not lean back, margin smooth stone smooth top line to be straight, no indentation protruding teeth before and after the wrong level of the phenomenon, flat. Smooth stone straight line requirement, the top level and meets the design level requirements.
(3) Curb Installation qualified after inspection, that placing the rear edge of stone, and vibration