Journals
Publish with us
Publishing partnerships
About us
Blog
Geofluids
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Geofluids
/
2022
/
Article
/
Tab 1
/
Research Article
Efficient Excavation and Support Cooperation Technology for Surrounding Rock of Deep Buried Long-Distance and Large Section Gob-Side Roadway: A Case Study
Table 1
Rock stratum occurrence and mechanical parameters.
Number
Lithology
Thickness (m)
Density (kg·m-
3
)
Bulk modulus (GPa)
Shear modulus (GPa)
Internal friction angle (°)
Cohesion (MPa)
Tensile strength (MPa)
7
Medium sandstone
49.4
2700
11.3
6.7
38.0
6.2
2.7
6
Siltstone
12.6
2460
10.8
8.1
38.0
2.8
1.8
5
Medium sandstone
16.4
2700
11.3
6.7
38.0
6.2
2.7
4
Coal
1.2
1820
1.9
1.6
24.2
1.9
1.9
3
Siltstone
14.9
2460
10.8
8.1
38.0
2.8
1.8
2
Medium sandstone
8.9
2700
11.3
6.7
38.0
6.2
2.7
1
Siltstone
3.8
2460
10.8
8.1
38.0
2.8
1.8
0
3-1 coal
5.8
1820
1.9
1.6
24.2
1.9
1.9
-1
Siltstone
4.9
2460
10.8
8.1
38.0
2.8
1.8
-2
Medium sandstone
2.1
2700
11.3
6.7
38.0
6.2
2.7
-3
Siltstone
6.0
2460
10.8
8.1
38.0
2.8
1.8