Coal uncovering construction method for blasting large cross-section gas tunnels

A coal uncovering construction method for blasting large cross-section gas tunnels includes: analyzing stress distribution characteristics in front of a tunnel boring working face, and then determining a thickness calculation model of a reserved rock wall based on a limit equilibrium theory; establi...

Full description

Saved in:
Bibliographic Details
Main Authors Kuang, Liang, Feng, Yitao, Zhang, Weiming, Jin, Liujie, Du, Liang, Dong, Qian, Wang, Wuxian, Zhao, Wanqiang, Huang, Mingli, Yan, Su, Yang, Jinwen
Format Patent
LanguageEnglish
Published 02.07.2024
Subjects
AMMUNITION
BLASTING
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
HEATING
LARGE UNDERGROUND CHAMBERS
LIGHTING
MECHANICAL ENGINEERING
MINING
SHAFTS
TUNNELS
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:A coal uncovering construction method for blasting large cross-section gas tunnels includes: analyzing stress distribution characteristics in front of a tunnel boring working face, and then determining a thickness calculation model of a reserved rock wall based on a limit equilibrium theory; establishing a tunnel model, simulating a construction condition and analyzing a construction result, and determining a thickness of the reserved rock wall; and fixing a detonator through a fixed sand ring, fitting the detonator with a construction hole by adjusting an adjustable protective plate, then embedding the detonator into a blast hole, and blasting the detonator for tunnel construction. Furthermore, an extension ring is fixed between the fixed sand ring and the adjustable protective plate.
Bibliography:Application Number: US202318224720