NB/T 11261-2023 Active Industry standards-Energy

NB/T 11261-2023 Code of practice for construction and quality acceptance of freezing holes in coal mines

NB/T 11261-2023 Code of practice for construction and quality acceptance of freezing holes in coal mines

Publish Date: 2023-05-26 Implement Date: 2023-11-26 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: NB/T 11261-2023

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Mining

ICS Name: Mining and excavation

Publish Date: 2023-05-26

Implement Date: 2023-11-26

Pages: 20 pages

Scope

This document specifies the preparation for the construction of freezing holes in coal mines, the construction process, the selection of equipment, the requirements for construction quality, and the methods for quality acceptance of freezing holes.
This document is applicable to the construction and quality acceptance of freezing holes when using the freezing method to excavate mine shafts in coal mines.

Development Information

Word Count: 33 Thousand words Pages: 20 pages

Referenced Standards

GB 12523-1990 Noise limits for construction site GB/T 15663.2-1995 Terms relating to coal mining—Shafting and drifting engineering GB/T 15663.2-2008 Terms relating to coal mining—Part 2:Shafting and drifting engineering GB/T 15663.2-2023 Vocabulary of coal mining—Part 2:Shaft and drift engineering MT/T 1124-2011 Frost blasting for mining vertical shaft engineering specifications for coal mines MT/T 1054-2008 Diretical gyro-clinometer in coal mine GB 50057-2010 Code for design protection of structures against lightning GB/T 50905-2014 code for green construction of building GB/T 51277-2018 Standard for construction and acceptance of coal mine shaft of freezing method GB/T 51288-2018 The standard for freezing construction and quality acceptance of mine inclined shafts

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