Roadbed sound barrier, sub-project should write what, feel that the sub-road subgrade facilities, but can not find.
What should be
If you engage in the completion of the information, then you should know that I do not know whether you are a railway or a highway, the railway which has a "Passenger Dedicated Railway Engineering Inspection Lot to fill in the example" of the book, there are roadbed, bridge, tunnel unit works Part of the project division, you can see.
Subgrade ancillary facilities do not contain sound barrier, the contents of the inspection equipment, protective fence, take, spoil. Hope to help you!
One of these projects include: 1, cable slot 2, catenary base 3, sound barrier foundation 4, buried pipeline, integrated grounding.
Sound barrier count division project, the name of the division project is called: roadbed related works.
