GB/T 31089-2014Computation and requirement of recovery ratio of coal mine (English PDF)
煤矿回采率计算方法及要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 22, 2014
Implementation date
June 1, 2015
Scope
GB/T 31089-2014 is the English-translated version of 煤矿回采率计算方法及要求.
GB/T 31089-2014 is the Chinese standard "Computation and requirement of recovery ratio of coal mine". Its scope clause reads: This standard specifies the terms, calculation methods and requirements for coal mine recovery rate.
This standard applies to underground mining of coal mines. Its clauses include terms and definitions; calculated recovery rate.
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Document preview — GB/T 31089-2014
National Standard of the People's Republic of China
- ICS
- 73.040
- Classification
- D 20
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 calculated recovery rate
1 Scope
This standard specifies the terms, calculation methods and requirements for coal mine recovery rate.
This standard applies to underground mining of coal mines.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Mine production Reserves Management Procedure [(1983) coal vocabulary No. 1275]
Mine geology regulations (Trial) [(1984) coal vocabulary No. 607]
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 The recovery rate
The actual proportion of mined coal accounts for use of resources and reserves.
Press the exploitation of coal resources and reserves of the scope of use, the recovery rate can be divided into face recovery rate, recovery rate of mining area, mine recovery rate.
3.2 Face the recovery rate
Face Face actual mined coal accounts for use of resources and reserves ratio.
3.3 Extraction rate recoveryratioofdistrict
Mining area actually mined coal mining area accounted for the proportion of resource use reserves.
3.4 Mine recovery rate
Mine actually mined coal mines accounted for the proportion of the use of reserves.
3.5 Use of reserves mined-outreserves; worked-outreserves
In the coal mining process has been mined part of the amount of coal mined and the loss of resources and reserves.
4 calculated recovery rate
4.1 Face the recovery rate
Face the recovery rate according to equation (1).
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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