Results 211 to 220 of about 629,295 (307)

Research on Grouted Steel Pipe Supports Roof Cutting and Gob‐Side Entry Retaining Support Technology for Fully‐Mechanized Caving Face

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Aiming at the roof control challenges of gob‐side entry retaining in fully mechanized top‐coal caving faces, traditional concrete‐filled steel tube (CFST) support technology exhibits limitations such as slow strength development and complex construction equipment.
Xiaojun Li   +3 more
wiley   +1 more source

Identification and Prediction Method of Working Face Water Inrush of Isolated Overburden Grout Injection

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Isolated overburden grout injection (IOGI) is an economical and efficient green mining technology. During the grout injection process, a large amount of slurry bled water will enter the underlying rock strata below the grouting layer. Under certain conditions, the slurry bled water may seep along the overlying rock layer into the water ...
Chaochao Wang, Jialin Xu, Dayang Xuan
wiley   +1 more source

Research on IDS Water Injection for Prevention of Dynamic Disasters in High‐Stress Low‐Adsorption Coal Seams

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT The deep coal seams in the Pingdingshan mining area are characterized by high stress and low adsorption capacity. Existing water injection additives have proven ineffective in preventing dynamic disasters. Research has found that IDS (iminodisuccinic acid tetrasodium salt) can dissolve minerals in coal, significantly improving the ...
Guochuan Zhang   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy