浅谈隧道弃碴在路基底基层施工中的应用

Talk about the construction of the subgrade subbase with the mucking debris from tunnels

结合具体工程实例,对隧道碴及级配碎石底基层进行了对比和选择,介绍了隧道碴底基层施工工艺及施工步骤,提出了施工中的注意事项及质量控制要点,并得出了因地制宜选用隧道碴取代级配碎石作为路面底基层用料可行的结论。

Combined with the specific engineering example, the author makes the comparison and the selection between the tunnel debris and the gravel-sorted subbase, introduces the construction technology and the construction procedure of the tunnel debris subbase, puts forward the problems needing attention in the construction and the quality control points, draws a conclusion that the tunnel debris can replace the graded broken stone as the pavement subbase material according to local conditions.