深圳市內環路城市主干道第三標段施工技術總結.doc

內環路（鶴洲段）市政工程第三標段
施工技術總結

本標段工程為深圳市內環路城市主干道第三標段，全長1083.75m。位于鶴洲開發區內，北接洲石公路收費站，南通107國道。本標段起止樁號為K1+000～K2+083.75。本標段平園曲線兩處，JD2、JD3折線一處、豎曲線4處、路口9個（其中5個小路口）。本標段路基寬度為80m，為城市主干道，設計速度為60公里/小時，雙向6車道。其中車行道12.25m（單側）、輔道8m（單側）、人行道5m（單側）、中央綠化帶寬6m，主、輔道隔離帶5m（單側）、路邊綠化帶6～7.5m（單側），路面結構層主車道自上而下為25cmC35水泥砼、20cm6%水泥穩定石粉渣、20cm4%水泥穩定石粉渣，輔道路面結構自上而下為22cmC30水泥砼、20cm6%水泥穩定石粉渣，人行道結構自上而下為6cmC25預制水泥砼彩色面磚、2cm1:3水泥砂漿、15cm4%水泥穩定石粉渣。本標段工程為市政道路，沿整條道路走向右側布設有沿路排水箱涵，道路南側的人行道下，布設有電力通道（即電纜溝），道路兩側人行道下布設有電信通道。本段給水管線沿道路走向兩側布設，排水管線均沿道路走向兩側布設，雨水每間隔一段距離接入沿路布設的箱涵中。

一、路基工程
K1+000～K1+110由于地處低洼處，積水嚴重，在路基設計標高內淤泥近兩木厚，經設計變更我們對該段路基進行了塊石換填處理。使該段路基能夠滿足規范要求。K1+300～K1+800段在路基標高內多為近年堆放土、壓實度、彎沉值滿足不了規范要求。因此在路床下1.5m進行翻挖并分層碾壓處理，確保路基壓實度及路床彎沉值滿足規范要求。本標段大多為挖方地段，在
Inner Ring Road (Cape Island Section) Lot No. 3 of Municipal Engineering
Construction Technology

The tenders works for the third main road in Shenzhen City Circle City sections, the length 1083.75m. Crane Island is located within the development zone, north spar toll station, 107 National Road, Nantong. Stake beginning and end of the tenders for the K1 +000 ~ K2 +083.75. The tenders Ping Garden curve 2, JD2, JD3 line 1, vertical curve 4, junction 9 (including 5 small junctions). The tenders roadbed width 80m, the city main road, design speed of 60 km / hour, two-way 6 lanes. One roadway 12.25m (unilateral), Voeux Road 8m (unilateral), sidewalk 5m (unilateral), the central green bandwidth of 6m, main and auxiliary channel isolation with 5m (unilateral), roadside green belt 6 ~ 7.5m (unilateral), the main Drive from top to bottom of pavement layer of cement concrete for the 25cmC35, 20cm6% cement stabilized powder residue, 20cm4% cement stabilized powder residue, secondary structure of the road surface from the top down to 22cmC30 cement concrete, 20cm6% Cement powder residue, pavement structure from top to bottom as 6cmC25 precast cement concrete color tile, 2cm1: 3 cement mortar, 15cm4% slag cement stabilized powder. The tenders for municipal road construction along the entire road to the right of laying a drainage culvert along the road south of the sidewalk, the layout has the power channel (ie cable channel), laid under the road pavement on both sides have telecommunications access. This section of water pipe laid along the road to both sides, drain lines are laid along both sides of the road into the rain for some distance intervals along the layout of the box culvert in access.

1, subgrade
K1 +000 ~ K1 +110 low-lying office because, water seriously, in the design of embankment elevation within the past two wood thick mud, through design changes we made to the roadbed stone replacement treatment. So that the subgrade can meet the specifications. K1 +300 ~ K1 +800 within the multi-segment elevation in the subgrade soil piled up in recent years, compaction, Deflection can not meet the specifications. Therefore, to turn in the road bed 1.5m layer rolling, digging, and to ensure the subgrade compaction and road bed Deflection meet the requirement. Most of the tenders for the excavation site, in
 

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