Standard Number: YB/T 4866.3-2020(YB/T4866.3-2020)
Chinese:铁矿山露天转地下开采技术规范 第3部分：覆盖层形成技术规范
English:Technical Specification for Conversion of Iron Ore Mines from Open Pit to Underground Part 3: Technical Specification for Overburden Formation
Effective Date:2021-04-01
Standard Applicability:This part specifies the basic principles, technical parameters, safety, monitoring, etc. of the formation of overburden for open pit to underground chipping method mining of iron ore mines. This part applies to open pit to underground iron ore mines using the chipping method.
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