路面排水设计要点有哪些?

2025-03-10 01:12:45
推荐回答(5个)
回答1:

路面排水设计是指根据公路等级、降水量、路线纵坡等因素,结合路基、桥涵结构物的一类排水设计。路面排水设计时,应合理选择排水方案,布置排水设施,保证路基、路面稳定。
根据水源的不同,影响路面的水流可分为地面水和地下水两大类,与此相应的路面排水,分为路面地表排水和路面内部排水。路面地表排水包括路面表面排水和中央分隔带排水。路面表面排水是指路面和路肩范围内的表面水的排除。中央分隔带排水是指中央分隔带范围内的表面水的排除。路面内部排水是指排除或疏干通过裂缝、接缝或面层空隙下渗到路面结构(面层、基层和垫层)内部,或者由地下水及道路两侧滞水浸人路面结构内部的水分。

回答2:

湖北毅瑞建设工程咨询有限公司为您解答:

路肩排水设施的纵坡应与路面的纵坡一致,当路面纵坡小于0.3%时,可采用横向分散排水方式将路面水排出路基,但路基填方边坡应进行防护。

路堤边坡较高,采用横向分散排水不经济时,应采用纵向集中排水方式,在硬路肩边缘设置排水带,并通过急流槽将水排出路基。

拦水带可采用水泥混凝土预制块或沥青混凝土筑成,拦水带高出路肩12cm,顶宽8~10cm。急流槽的设置距按路肩排水的容许容量计算确定以20m~50m为宜,急流槽可设置在凹形曲线底部及构造物附近,并考虑到地形、边坡状态及其它排水设施的联接。

回答3:

1、根据公路等级,沿线地形、地质、水文、气象等条件以及桥涵设置等情况进行综合考虑,注意各种排水构造物之间的联系,并与沿线农田水利排灌系统相结合,使全线形成完善的排水系统,保证路基路面的稳定。
2、各项排水设施和构造物的设计,应考虑便于施工、检查和养护维修的要求。
3、多年冻土、滑坡等特殊地区(段)的公路,排水设计应结合该工程的其他处治措施综合进行。

回答4:

你好望采纳!
1、路基排水的设计,必须分别情况,因地制宜。
2、利用边沟、截水沟等排水设备分段截留,引入自然沟谷、荒地、取土坑或低洼处,排出路基范围之外。
3、丘陵及山岭地区除边沟排水须注意挖方边坡上方水流下泄。
4、地下水的处理,应与地面水的排除统一考虑,因地制宜
5、排水系统综合设计,应合理选定各种排水设备的类型和位置,恰当确定排水功能。
6、在路基排水设计中,农田用水宜自成系统。

回答5:

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