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See Chinese contents: TB 10084-2007 TB 10084-2007: Code for geology investigation of natural building material of railway engineering
This Code is prepped to implement the relevant national technical and economic policies, unify the technical requirements for engineering geology investigation of railway natural building materials, and ensure the quality of investigation. This Code is applicable to engineering geology investigation of natural building materials such as new and rebuilt railway roadbed fillers, gravel ballasts, concrete aggregates, stones.
