Effect of Mine Water on the Stability of Underground Coal Mine Roadways

Sasaoka, Takashi; Karian, Tri; Hamanaka, Akihiro; Shimada, Hideki; Matsui, Kikuo; Ichinose, Masatomo

doi:10.1007/s10706-016-9977-x

Cited by 6 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the harsh environment in the underground mine with high stress, high temperature, high humidity, and persistent ventilation, the surrounding rock of the roadway is subject to weathering [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Properties of a Reinforcing Dust-Cementing Material for Thin Spray-On Liners in Mine Roadways

Zhou

et al. 2019

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The sprayed concrete in mine roadways suffers from a prolonged exposure to the harsh environment in the underground mine, leading to its detachment which may compromise its supporting strength. Besides, the dust-cementing effect of the conventional concrete is poor, providing very limited contribution to suppress the dust-laden airflow. As such, the present experiment uses sodium carboxymethyl cellulose as the base to produce a novel thin spray material through graft copolymerization based on acrylic acid and polyaluminum chloride. This new material can not only reinforce the surrounding rock of the roadway but also cement the dust in the airflow. Infrared spectroscopy, X-ray diffraction, thermal gravimetric analysis, and SEM are employed collectively to study the microscale reaction and structure of the product. A suite of experiment testing is carried out concerning the performance of the developed spray material, which reveals the supreme mechanical strength and desired properties of the hardened film developed from the spray material.

show abstract

Section: Introductionmentioning

confidence: 99%