Back to Search
Start Over
Experimental Studies about Characteristics of the Rocks Displacement and State of Bearing Pressure on the Haulage Roadway
- Source :
- E3S Web of Conferences, Vol 105, p 01008 (2019)
- Publication Year :
- 2019
- Publisher :
- EDP Sciences, 2019.
-
Abstract
- Comprehensive studies were conducted using measuring stations to measure the rock pressure and displacements of the roof rocks in the mine workings adjacent to the face when extracting medium thick inclined coal seams with the use of longwall (seam 6 at the Quang Hanh mine of Quang Ninh coal basin, Vietnam). The results of the study show that the displacement of the roof rock on the parallel roadway increases sharply at a distance of 1 to 12 m to the face, varies from 20 to 40 mm when the mining depth of the coal seam is 200 m and the maximum rock pressure on the haulage roadway supports is located at a distance of 3–8 m ahead of the face and is from 14 to 16 tons ranges.
- Subjects :
- lcsh:GE1-350
business.industry
0211 other engineering and technologies
Coal mining
Haulage
02 engineering and technology
Displacement (vector)
Mining engineering
Coal basin
Bearing capacity
Rock pressure
business
Roof
lcsh:Environmental sciences
Geology
021101 geological & geomatics engineering
021102 mining & metallurgy
Subjects
Details
- ISSN :
- 22671242
- Volume :
- 105
- Database :
- OpenAIRE
- Journal :
- E3S Web of Conferences
- Accession number :
- edsair.doi.dedup.....853555510426d7c48ef069b8c0eee5b7