highway drainage pipe 公路排水管
Highway Subgrade Drainage Design Research 公路路基排水设计研究
drainage of highway 公路排水
In design of highway drainage system, the rainfall reappearing period is a very important parameter.
在公路排水系统设计中，降雨重现期是一个非常重要的参数。
For lining seepage water of highway tunnel, the paper discussed how to strengthen waterproof, drainage design and construction quality control for reference.
隧道衬砌渗漏水是公路隧道的通病，应引起重视，在施工中应加强防排水设计与施工质量的管理。
It is used to drill heavy duty pretension anchor holes at side slope of water power station, railway or highway projects, as well as drainage holes.
适用于水电站铁路公路边坡大吨位预应力锚固孔排水孔的施工，以及预防滑坡岩石坍塌等地质灾害治理工程。
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