What is the depth of Dn100 ductile iron pipe ductile iron pipe?
What is the depth of Dn100 ductile iron pipe ductile iron pipe?
What is the depth of Dn100 ductile iron pipe ductile iron pipe?
The soil conditions are: coarse-grained soil with little or no fine-grained soil;
Trench backfill density: backfill density is moderate compaction, standard Portuguese density is not less than 85%;
Traffic load: traffic load parameter β=1.5
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Schematic diagram of buried depth of ductile iron pipe
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