河南省高速公路设计技术要求.rar

河南省高速公路设计技术要求

            设计内容
            现行规范的要求,规定
            技术要求
            路基工程
            路基工程
            路基填筑高度
            路基填土高度应根据公路所处地区的水文地质,地貌,村庄,路网状况,进行经济技术比较后确定.
            工程实施过程中,应认真贯彻设计意图,设计确定后不得随意变更通道的数量,净空.
            1,路基高度必须满足由地下水位确定的路基最小高度和设计洪水位控制要求.在设计洪水位和地下水位较高的路段,可采取必要的工程防护措施,以降低路基填筑高度.填土路基平均设计高度一般不大于2.8m.
            2,为减少高填方路基不均匀沉降的发生,应改变高填方路段设计.填土路基高度超过10m的路段,必须设桥通过.山岭区高速公路,根据地质条件,填料质量和运输距离,现场调查,实事求是,合理确定路基填筑高度.
            3,软土路基处理深度超过6m时,宜设桥通过.对于经过大片软土地基,坑塘的路段,软土处理深度大于8m的,必须设桥通过.
            28m宽路基上布设六车道及中央分隔带的设置
            《高速公路交通安全设施设计及施工技术规范》(JTJ074-94)第7.1.15条规定:混凝土护栏的埋置深
Henan Highway design requirements

            Design elements
            The existing specifications, requirements
            Technical requirements
            Subgrade
            Subgrade
            Embankment Fill Height
            Roadbed filling height should be located under the road area hydrogeology, topography, villages, road network conditions, determine the economic and technical comparison.
            Project implementation process, should conscientiously implement the design intent, the design shall not be changed after the channel to determine the amount of headroom.
            1, embankment height must meet the Embankment by the water table to determine the minimum height and design of flood control requirements. In the design of flood and high water table section of the project may take protective measures necessary to reduce the height of embankment filling. Filling The average height of embankment design does not exceed 2.8m.
            2, high fill embankment to reduce the occurrence of differential settlement, should change the design of high fill sections. Filling sections of embankment height exceeds 10m, to be located by the bridge. Mountain Highway, according to geological conditions, quality packing and transport distance , field investigation, seeking truth from facts, set reasonable roadbed filling height.
            3, the depth of soft soil treatment than 6m, it should set up the bridge through. For through the large ground, pond section of soft soil treatment depth greater than 8m, and must be located by the bridge.
            28m wide roadbed laid six lanes and the median of the set
            "Highway Traffic Safety Facilities Design and Construction Specification" (JTJ074-94) section 7.1.15 provides that: concrete fence buried deep