城镇道路施工质量验收标准

城镇道路施工质量验收标准

CJJ 1-2008 《城镇道路工程施工质量验收规范》 6.路基

6.3.12-2填方材料强度(CBR)值

表6.3.12-1 路基填料强度(CBR)的最小值

最小强度(%) 路床顶面以下深度填方类型 (cm) 城市快速路、主干路其他等级道路

路床 0,30 8.0 6.0

路基 30,80 5.0 4.0

路基 80,150 4.0 3.0

路基 >150 3.0 2.0 6.3.12-2路基压实度值

表6.3.12-2 路基压实度标准

路床顶面压实度检验频率填挖类型一下深度道路类别 (%)(重检验方法范围点数 (cm) 型击实)

城市快速?95 路、主干路

挖方 0,30 次干路 ?93

支路及其?90 他小路

城市快速?95 路、主干路

0,80 次干路 ?93

支路及其?90 环刀法、灌他小路 1000? 每层3个点水法或灌城市快速?93 砂法路、主干路

填方 >80,150 次干路 ?90

支路及其?90 他小路

城市快速?90 路、主干路

次干路 ?90 >150

支路及其?87 他小路

6.8 检验标准

6.8.1土方路基(路床)

1 路基压实度应符合本规范表6.3.12-2的规定

检查数量:每1000?、每压实层抽检3个点。

检验方法:环刀法、灌水法或灌砂法

deformation small; Dang engineering pile also for perfusion pile Shi, can synchronization construction, to construction conducive to organization, and convenient, and duration short; pile between gap easy caused soil erosion, special Shi in high level soft clay quality area, needed according to engineering conditions take note pulp, and cement mixing pile, and spin spray pile, construction measures to solution

block water problem; Suitable for soft clayey and sandy areas, but construction should be used with caution in the gravel and pebbles; between pile and pile through the pile top beam and wall purlins into overall and thus relatively poor overall, as in important areas, special projects and large Foundation pit in excavation depth application requires special care. 2.1.6 steel piles using steel piles supporting

the Foundation pit for temporary support features, construction convenient, short, finished construction in Foundation pit backfill

after the channel pulled out, re-use, can minimize the cost of support. Used steel piles supporting a fatal weakness, that is impervious to

water and small soil particles, and also called as high water

precipitation or water, and the underground water level is high, water-rich geological conditions did not match. Flexural capacity of steel sheet pile supporting weaker excavation depth does not exceed 4m deflection of more general application. Obviously the soft water of Foundation pit excavation depth of geological conditions of 10m, and is located in the city centres of Flex ... Limited to, work hard, and it can take full advantage of building line the walls within a limited number of ground and space, can give full play to its economic benefits, in the course of construction,

2 弯沉值，不应大于设计值规定。

检查数量:每车道、每20m测1个点。

检测方法:弯沉仪检测。

6.8.2石方路基

2填石路堤

1) 压实度应符合试验路段确定的施工工艺检查数量:每1000?，抽检3个点。

6.8.3 路肩

2 路肩，压实度应大于或等于90%。

检查数量:每100m，每侧各抽检1个点。检验方法:环刀法，灌砂法或灌水

法。

6.8.4 软土路基

1、换填土处理软土路基质量检测应符合本规范第6.8.1条的规定。

2、砂石垫层处理软土路基

1)砂垫层的材料质量应符合设计要求。检查数量:按不同材料进场批次，每批检查1次。检验方法:查检验报告。