SANS 2001-DP3-2010SANS 2001-DP2-2010SANS 2001-DP5-2010SANS 2001-DP4-2010
适用范围
This specification covers earthworks for trenches for all types and sizes of pipes. It covers excavation, the preparation of a trench bottom, backfilling and the reinstatement of surfaces. NOTE: The standards referred to in the specification are listed in Appendix A.