NB/T 11431-2023Technical specifications for backfilling of coal gangue in land remediation (English PDF)

NB/T 11431-2023 is the English-translated version of 土地整治煤矸石回填技术规范.

NB/T 11431-2023 — This document establishes the technical specifications for gangue backfilling, and stipulates the requirements for gangue classification, gangue admission, gangue backfilling site selection, Feasibility analysis, implementation of backfill projects, and environmental monitoring of backfill projects.

This document applies to the use of coal gangue or modified coal gangue in land consolidation to replace sand, stone, soil, etc., for land consolidation and land restoration.

It provides available backfill materials for mine backfilling, infrastructure construction, and land reclamation in natural potholes during land reclamation, land development, and land restoration. His gangue backfill can refer to this document.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

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