Abstract
Increasingly, mine subsidence is becoming a major issue of community concern. Among the measures of subsidence control, a more effective and economical technology, namely Overburden Grout Injection Technology (OGIT), is recently developed in China and Australia by injecting waste material into the bed separations during longwall mining to achieve subsidence control. The OGIT is proposed for the subsidence control in West Cliff Colliery located at the Southern Coalfield of the Sydney Basin, Australia. The three-dimensional finite element code COSFLOW is applied to investigate in a detail the bed separation developing with longwall mining and the effect of grout injecting into the separations in order to guide the subsidence control design when using the OGIT in West Cliff Colliery longwall mining practice.
Similar content being viewed by others
References
Adhikary DP, Mühlhaus HB, Dyskin AV (1999) Modelling the large deformations in stratified media—the Cosserat continuum approach. Mech Cohesive-Frictional Mater 4:195–213. doi: 10.1002/(SICI)1099-1484(199905)4:3<195::AID-CFM59>3.0.CO;2-#
Adhikary DP, Mühlhaus H-B, Dyskin AV (2001) A numerical study of flexural bulkling of foliated rock slopes. Int J Numer Anal Methods Geomech 25:871–884. doi:10.1002/nag.157
BHP Billiton Illawarra Coal (1998) Drilling and test reports on West Cliff Boreholes DDH1 (S1319), DDH2 (S1320), DDH3(S1323) and DDH4(S1324), A project report
Chen SG (2006) Simulation of stratified rocks using Cosserat model. 4th Asian rock mechanics symposium, November, Singapore
Chen SG, Guo H (2008) Numerical simulation of bed separation development and grout injecting into separations. Int J Geotech Geol Eng (in press). doi:10.1007/s10706-008-9174-7
Cosserat E, Cosserat F (1909) Theoris des corps deformables. Hermann, Paris
Gao YF, Zhong YP, Li JM, Den ZY, Yang ZD (2002) Theory and practice of subsidence control by multiple grouting in overburden bed separation zone. Coal Min Technol 7(2):42–45
Guo H, Shen B, Chen SG, Poole G (2005) Feasibility study of subsidence control using overburden grout injection technology. ACARP Project Report C12019, Australia, p 127
Guo H, Chen SG, Craig MS, Adhikary DP (2004) Coal mine subsidence simulation using COSFLOW. J Aust Inst Min Metall 2:47–52
Strata Control Technology (2003) Geotechnical characterisation of drill core from subsidence monitoring surface extensometer borehole DDH23. A report to BHP Billiton Illawarra Coal, BHPC2619, July
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chen, S.G., Hu, W. A Comprehensive Study on Subsidence Control Using COSFLOW. Geotech Geol Eng 27, 305–314 (2009). https://doi.org/10.1007/s10706-008-9230-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10706-008-9230-3