级配碎石垫层技术交底.doc

交底内容：
1. 本工程基层施工厚度为15cm。
2. 路基准备：
（1） 在铺筑基层前，应从填筑好的路基上将所有浮土、杂物清除干净，并严格整型和压实使其符合设计图纸要求。
（2） 路床表面上的车辙或松软部分和压实不足的地方以及任何不符合规定要求的表面都应翻松、清除或掺填同类材料重新进行整修碾压。
（3） 施工前对路基进行复验，同时保证路基排水设施的完好。
（4） 恢复中线测量：直线段每20～25m设一桩，平曲线每10～15m设一桩。
3. 摊铺：
分层平行摊铺，每层铺设的宽度，应超出路堤的设计宽度300mm，以保证修整
Cards on the table contents:
1. The base construction projects thickness 15cm.
2. Subgrade Preparation:
(1) in the pavement before the grass-roots level, should be a good foundation will be filling all the surface dust, debris cleared away, and strictly cosmetic and compaction to meet the design requirements of the drawings.
(2) Road bed surface rutting or soft parts and compaction deficiencies and does not meet the requirements of any surface should be turned loose, clear or mixed with similar material to re-fill repair RCC.
(3) before the construction of the roadbed for retesting, while ensuring good subgrade drainage.
(4) restoration of midline measurement: 20 ~ 25m straight line set up one of each, every 10 ~ 15m horizontal curve set 1.
3. Paving:
Hierarchical parallel paving, the width of each floor laying, should go beyond the width of embankment design 300mm, to ensure that repair