The quality control aims to make backfill body meet its strength requirements and allow backfill material to have a low lost and a good fluidity and dehydrate a little or not.
填充体质量控制的目标是：填充体具有一定强度、充填材料成本低、流动性好、不脱水或少量脱水。
The quality control aims to make backfill body meet its strength requirements and allow backfill material to have a low lost and a good fluidity and dehydrate a little or not.
填充体质量控制的目标是：填充体具有一定强度、充填材料成本低、流动性好、不脱水或少量脱水。
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