摘要
当前在道路土石方工程挖方段施工中,明挖法是运用最多的方法,明挖法具有安全可靠、技术容易掌握和经济效益好等优点,其中对于土方量较大或垂直高差较大的大型山体土石方明挖工程中,因为开挖深度较大,为了避免直立壁土的坍塌,边坡宜做成台阶形或折线形的分级放坡的形式,分级放坡式明挖法施工较暗挖法、隧道工程等施工方法,有造价低、可行性高的优点,此外放坡开挖需适用于施工场地土质较好、对周边环境的保护要求不严格并且现场有足够的场地的工程。
At present,in the earthwork excavation of roads,the method of digging is the most used method. The method of digging is safe and reliable,the technology is easy to grasp and the economic benefits are good. For large earthwork or large vertical height difference,because of the large excavation depth,in order to avoid the collapse of erected wall soil,the slope should be made into stepped or linear grading,tunneling and other construction methods,with the advantages of low cost and high feasibility. In addition,the grading and excavation should be applied to the construction site where the soil quality is good,the protection of the surrounding environment is not strict and the site has enough sites.
出处
《施工技术》
CAS
2018年第S1期1210-1213,共4页
Construction Technology
关键词
道路工程
边坡
明挖法
分级开挖
分段合拢
road construction
slope
ming dug method grading
excavation
segment closure
