Stability of Coal Pillar and Roof Movement Characteristics in Roadway Backfill Mining
نویسندگان
چکیده
منابع مشابه
Study on the Vibration Response Characteristics of Broken Roof Rock in Coal Roadway
Received: December 18, 2015 Revised: September 29, 2016 Accepted: October 18, 2016 Abstract: Background: Aiming at the challenges in control and perdition of roof strata which caused by the complexity of coal mine roof, the force and vibration characteristics of drill bit have been analyzed considering the coupling vibration between drill bit and coal rock, and the characteristics of coupled vi...
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Original scientific paper To enhance underground mining safety, researchers developed high-water and fast-setting cement (HWFSC). HWFSC essentially consists of two components and can be mixed with large quantities of water. To determine its mechanical strength, a series of uniaxial compressive strength tests were conducted on HWFSC specimens with different water-to-solid ratios. Results indicat...
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ژورنال
عنوان ژورنال: Advances in Civil Engineering
سال: 2021
ISSN: 1687-8094,1687-8086
DOI: 10.1155/2021/5588923