ARTICLE
Instability mechanism and anchoring control technology of expansive weakly cemented soft rock roadway
1
School of Architecture and Civil Engineering, Liaocheng University, Liaocheng, China
Submission date: 2022-10-22
Final revision date: 2023-04-27
Acceptance date: 2023-04-27
Online publication date: 2023-06-03
Publication date: 2023-07-31
Corresponding author
Journal of Theoretical and Applied Mechanics 2023;61(3):465-480
KEYWORDS
TOPICS
ABSTRACT
A long-term discontinuous development of the plastic zone and broken zone of weakly ce-
mented surrounding rock is the main reason for instability of the surrounding rock of a
roadway. The load-bearing support concept of “allowable deformation + releasable pres-
sure + limited deformation” for a weakly cemented soft rock roadway is proposed, and an
“allow-release-limit” support structure mechanical model with U-shaped steel as the main
body is established. Anchoring control measures of “U-shaped steel + flexible material wall
backfill + key parts strengthening” can solve problems of large deformation and long defor-
mation duration of weakly cemented roadways.
REFERENCES (20)
1.
Aguilera M.A., Arias R.M., Manzur T., 2019, Mapping microhabitat thermal patterns in artificial breakwaters: Alteration of intertidal biodiversity by higher rock temperature, Ecology and Evolution, 9, 22, 12915-12927.
2.
Bhuiyan M.Y., Lin B., Giurgiutiu V., 2018, Acoustic emission sensor effect and waveform evolution during fatigue crack growth in thin metallic plate, Journal of Intelligent Material Systems and Structures, 29, 7, 1275-1284.
3.
Fang K., Zhao T.B., Zhang Y.B., Qiu Y., Zhou J.H., 2019, Rock cone penetration test under lateral confining pressure, International Journal of Rock Mechanics and Mining Sciences, 119, 149-155.
4.
Kang H.P., Lin J., Fan M.J., 2015, Investigation on support pattern of a coal mine roadway within soft rocks - a case study, International Journal of Coal Geology, 140, 1, 31-40.
5.
Li J., Tang S.H., Zhang S.H., Li L., Wei J.G., Xi Z.D., Sun K., 2018, Characterization of unconventional reservoirs and continuous accumulations of natural gas in the Carboniferous-Permian strata, mid-eastern Qinshui basin, China, Journal of Natural Gas Science and Engineering, 49, 298-316.
6.
Luo Z.S., Li J.L., Jiang Q., Zhang Y.C., Huang Y.S., Assefa E., Deng H.F., 2018, Effect of the water-rock interaction on the creep mechanical properties of the sandstone rock, Periodica Polytechnica-Civil Engineering, 62, 2, 451-461.
7.
Mineo S., Pappalardo G., 2019, InfraRed Thermography presented as an innovative and non-destructive solution to quantify rock porosity in laboratory, International Journal of Rock Mechanics and Mining Sciences, 115, 99-110.
8.
Sharma M.S.R., O'Regan M., Baxter C.D.P., Moran K., Vaziri H., Narayanasamy R., 2010, Empirical relationship between strength and geophysical properties for weakly cemented formations, Journal of Petroleum Science and Engineering, 72, 1, 134-142.
9.
Showkati A., Maarefvand P., Hassani, H., 2015, Stresses induced by post-tensioned anchor in jointed rock mass, Journal of Central South University, 22, 4, 1463-1476.
10.
Theocharis A., Roux J., Langlois V., 2020, Elasticity of model weakly cemented granular materials: A numerical study, International Journal of Solids and Structures, 193, 13-27.
11.
Tu W.F., Li L.P., Zhou Z.Q., Shang C.S., 2022, Thickness calculation of accumulative damaged zone by rock mass blasting based on Hoek-Brown failure criterion, International Journal of Geomechanics, 22, 2, Paper ID: 04021273.
12.
Wang S., Han L.J., Meng Q.B, Jin Y.H., Zhao W.S., 2020, Water absorption/dehydration by NMR and mechanical response for weakly cemented mudstones subjected to different humidity conditions, Bulletin of Engineering Geology and the Environment, 79, 3, 1275-1288.
13.
Yang S.Q., Jing H.W., 2011, Strength failure and crack coalescence behavior of brittle sandstone samples containing a single fissure under uniaxial compression, International Journal of Fracture, 168, 2, 227-250.
14.
Yang S.Q., Yin P.F., Zhang Y.C., Chen M., Zhou X.P., Jing H.W., Zhang Q.Y., 2019, Failure behavior and crack evolution mechanism of a non-persistent jointed rock mass containing a circular hole, International Journal of Rock Mechanics and Mining Sciences, 114, 101-121.
15.
Zhang C.W., Jin Z.X., Feng G.R., Song X.M., Rui G., Zhang Y.J., 2020, Double peaked stress-strain behavior and progressive failure mechanism of encased coal pillars under uniaxial compression, Rock Mechanics and Rock Engineering, 53, 7, 3253-3266.
16.
Zhang W., Guo W.Y., Wang Z.Q., 2022a, Influence of lateral pressure on mechanical behavior of different rock types under biaxial compression, Journal of Central South University, 29, 11, 3695-3705.
17.
Zhang W., Zhao T.B., Guo W.Y., Xing M.L., 2022b, Study on mechanical characteristics of rock type I fracture and anchorage strengthening mechanism, Journal of Theoretical and Applied Mechanics, 60, 3, 423-434.
18.
Zhang W., Zhao T.B., Yin Y.C., 2022c, Prefabricated fractured rock under stepwise loading and unloading, Journal of Theoretical and Applied Mechanics, 60, 1, 167-179.
19.
Zhang W., Zhang B.L., Zhao T.B., 2023, Study on the law of failure acoustic-thermal signal of weakly cemented fractured rock with different dip angles, Rock Mechanics and Rock Engineering, DOI: 10.1007/s00603-023-03296-1.
20.
Zhao T. B., Zhang W., Gu S.T., Lv Y.W., Li Z.H., 2020, Study on fracture mechanics of granite based on digital speckle correlation method, International Journal of Solids and Structures, 193, 192-199.
| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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