級配碎石墊層技術交底.doc
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交底內容:
1. 本工程基層施工厚度為15cm。
2. 路基準備:
(1) 在鋪筑基層前,應從填筑好的路基上將所有浮土、雜物清除干凈,并嚴格整型和壓實使其符合設計圖紙要求。
(2) 路床表面上的車轍或松軟部分和壓實不足的地方以及任何不符合規定要求的表面都應翻松、清除或摻填同類材料重新進行整修碾壓。
(3) 施工前對路基進行復驗,同時保證路基排水設施的完好。
(4) 恢復中線測量:直線段每20~25m設一樁,平曲線每10~15m設一樁。
3. 攤鋪:
分層平行攤鋪,每層鋪設的寬度,應超出路堤的設計寬度300mm,以保證修整
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
