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pipeline backfill soil stone crusher
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pipeline backfill soil stone crusher

Jan 22, 2021· Fill the lower portion of the trench by depositing approvedbackfilland bedding material in layers of 6 inches maximum thickness, and compact with suitable tampers to the density of theadjacent soiluntil there is a cover of not less than 12 inches, using special care not to damagepipeandpipecoatings.Backfillthe remainder of the trench with material free fromstoneslarger than 6 inches or …

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