Rockburst risk is an increasing problem in underground mining worldwide, as the general trend is for mines to operate in deeper environments. In most mines affected by seismicity, the first line of defence to mitigate the potential consequences of rockburst is to install dynamic resistant ground support systems. The assessment of ground support capacity when submitted to dynamic loading has been the subject of intensive research over the last two decades. In particular, drop tests were developed to investigate the capacity of support elements while the performance of various support systems was examined by simulating rockbursts with carefully designed blasts. The above research has yet to yield an accepted method to determine the dynamic capacity of ground support. In this paper, the published results from many of the above tests are compiled and practical observations are made regarding the dynamic capacity of ground support systems.
PotvinY., HadjigeaorgiouJ. and StaceyT. R.: ‘Challenges in deep and high stress mining’, Chap. 1, ‘Introduction’, (ed.PotvinY.), 1–12; 2007, Perth, Australian Centre for Geomechanics.
2.
LeeM. F., MollisonL. J., MikulaP. and PascoeM.: ‘In-situ rock stress measurements in Western Australia's Yilgarn Craton’, Proc. Int. Symp. on ‘In-situ stress’, (ed.LuM.), 35–42; 2006, Rotterdam, Taylor and Francis/Balkema.
3.
YiX. and KaiserP. K.: ‘Impact testing for rockbolt design in rockburst conditions’, Int. J. Rock Mech. Geomechan. Abstr., 1994, 31, (6), 67–68.
4.
KaiserP. K., McCreathD. R. and TannantD. D.: ‘Canadian Rockburst Support Handbook’, Canadian Rockburst Research Program 1990–1995, Camiro, 1996.
5.
OrtleppW. D. and StaceyT. R.: ‘Testing of tunnel support: dynamic load testing of rock support containment systems’, SIMRAC GAP Project 221, 1997.
6.
OrtleppW. D. and StaceyT. R.: ‘Testing of tunnel support: dynamic load testing of rockbolt elements to provide data for safer support design’, SIMRAC GAP Project 423, 1998.
7.
OrtleppW. D., StaceyT. R. and KirstenH. A. D.: ‘Containment support for large static and dynamic deformations in mines’, Proc. Int. Symp. on ‘Ground support’, (ed.VillaescusaE.), 389–364; 1999, Rotterdam, Balkema.
8.
StaceyT. R. and OrtleppW. D.: ‘Retainment support for dynamic events in mines’, in ‘Rock support and reinforcement practice in mining’, Balkema, Rotterdam, 329–333; 1999.
9.
OrtleppW. D. and SwartA. H.: ‘Extended use of the Savuka dynamic test facility to improve material and analytical technology in deep-level stope support’, SIMRAC Report GAP 818, 2002.
10.
GaudreauD.: ‘Performance assessment on tendon support systems submitted to dynamic loading’, Master's dissertation, Universite de Montreal, Canada, 2004, 133.
11.
PlouffeM., AndersonT. and JudgeK.: ‘Rock bolts testing under dynamic conditions at CANMET-MMSL’, Proc. 6th Int. Symp. On ‘Ground support in mining and civil engineering construction’, (ed.StaceyT. R. and MalanD.), SAIMM Symposium SeriesS51, 581–595; 2008, Cape Town.
12.
PlayerJ. R., VillaescusaE. and ThompsonA. G.: ‘Dynamic testing of rock reinforcement using the momentum transfer concept’, Proc. 5th Int. Symp. on ‘Ground support in mining and underground construction’, (ed.VillaescusaE. and PotvinY.), 3597–3622; 2004.
13.
PlayerJ. R., ThompsonA. G. and VillaescusaE.: ‘Dynamic testing of reinforcement system’, Proc. 6th Int. Symp. on ‘Ground support in mining and civil engineering construction’, (ed.StaceyT. R. and MalanD.), SAIMM Symposium Series S51, 581–595; 2008, Cape Town.
14.
PlayerJ. R., MortonE. C., ThompsonA. G. and VillaescusaE.: ‘Static and dynamic testing of steel wire mesh for mining applications of rock surface support’, Proc. 6th Int. Symp. On ‘Ground support in mining and civil engineering construction’, (ed.StaceyT. R. and MalanD.), SAIMM Symposium Series S51, 693–706; 2008, Cape Town.
15.
PlayerJ., VillaescusaE. and ThompsonA. G.: ‘Dynamic testing of friction rock stabilisers, Paper 4027 – Rock Engineering in Difficult Conditions’, 3rd Canada–US Rock Mechanics Symp. and 20th Canadian Rock Mechanics Symp., Toronto, Canada, May 2009.
16.
VillaescusaE., ThompsonA. G. and PlayerJ.: ‘Dynamic testing of rock reinforcement systems’, Proc. CRCMining Australian Mining Technology Conf. on ‘New technologies to produce more with less’, (ed.GurgenciH.), 79–95; 2005, Melbourne, The AusIMM.
17.
TannantD. D., McDowellG. M., BrummerR. K. and KaiserP. K.: ‘Ejection velocities measured during a rockburst simulation experiment’, Proc. Int. Symp. on ‘Rockbursts and seismicity in mines’, Kingston, Ont., Canada, August 1993, A.A. Balkema, 129–133.
18.
TannantD. D., McDowellG. M. and McCreathD. R.: ‘Shotcrete performance during simulated rockbursts’, International Workshop on ‘Applied rockburst research’, Santiago, Chile, May 1994.
19.
HaganT. O., MilevA. M., SpottiswoodeS. M., HildyardM. W., GrodnerM., RorkeA. J., FinnieG. J., ReddyN., HaileA. T., Le BronK. B. and GraveD. M.: ‘Simulated rockburst experiment – an overview’, J. South Afr. Inst. Min. Metall., August 2001, 217–222.
20.
HildyardM. W. and MilevA. M.: ‘Simulated rockburst experiment: numerical back-analysis of seismic wave interaction with the tunnel’, J. South Afr. Inst. Min. Metall., August 2001, 223–234.
21.
ReddyN. and SpottiswoodeS. M.: ‘The influence of geology on a simulated rockburst’, J. South Afr. Inst. Min. Metall., August 2001, 267–272.
22.
EspleyS. J., HeiligJ. and MoreauL. H.: ‘Assessment of the dynamic capacity of liners for application in highly-stressed mining environments at Inco Limited’, Proc. Int. Semin. on ‘Surface support liners’, Johannesburg, South Africa, 2002.
23.
HealD.: ‘Ground support for rockbursting conditions’, Australian Centre for Geomechanics Course No. 0505, Advanced Geomechanics, Section 8, Perth, Australia, 2005.
24.
ArchibaldJ. F., BaidoeJ. P. and KatsabanisP. T.: ‘Rockburst damage mitigation benefits deriving from use of spray-on rock linings’, Proc. 3rd Int. Semin. on ‘Surface support liners: thin spray-on liners, shotcrete and mesh’, Quebec City, Canada, August 2003, Université Laval, Section 19.
25.
AndrieuxP., TurichshevA., O'ConnorP. and BrummerR. K.: ‘Dynamic testing with explosive charges of rockburst-resistant ground support systems at the Fraser Nickel Mine’, Itasca Consulting Canada Inc., Report to Falconbridge Limited Mine Technical Services; Final Version, Sudbury, Canada, 2005.
26.
HealD. and PotvinY.: ‘In-situ dynamic testing of ground support using simulated rockbursts’, Proc. 4th Int. Semin. on ‘Deep and high stress mining’, (ed.PotvinY.), 373–394; 2007, Perth, Australian Centre for Geomechanics.
27.
HealD.: ‘Observations and analysis of incidences of rockburst damage in underground mines’, PhD thesis, The University of Western Australia, Perth, Australia, 2010.
28.
PotvinY.: ‘Strategies and tactics to control seismic risks in mines’, Proc. 2rd Int. Semin. on ‘Strategic versus tactical approaches in mining’, (ed.HadjigeorgiouJ.), 195–207; 2008, Quebec City, Université Laval.
29.
HudymaM. and PotvinY.: ‘Quasi-real time seismic hazard maps for mining’, Proc. APCOM 2009, Vancouver, Canada, October 2009, Taylor & Francis Group, 529–636.
MendeckiA. J.: ‘Forecasting seismic hazard in mines, Keynote’, Vol. 1, Proc. 1st Southern Hemisphere Int. Rock Mechanics Symp., (ed.PotvinY.), 55–69; 2008, Perth, Australian Centre for Geomechanics.
32.
McGarrA., GreenR. W. and SpottiswoodeS. M.: ‘Strong ground motion of mine tremors: some implications for near-source ground motion parameters’, Bull. Seismol. Soc. Am., 1981, (71), 295–319.
33.
MilevA. M., SpottiswoodeS. M. and StewartR. D.: ‘Dynamic response of the rock surrounding deep level mining excavations’, Proc. 9th Int. Cong. on ‘Rock mechanics’, Paris, France, July 1999, 1109–1114.
34.
WebberS. J.: ‘Analysis of seismic data from a hard rock western australian mine: implications for support design’, Snowden technical report, unpublished, 2000.
35.
StillborgB.: ‘Professional users handbook for rock bolting’, 2nd edn, Series on Rock and Soil Mechanics, Vol. 18, 164; 1994, Clausthal-Zellerfeld, Trans. Tech. Publications,.
36.
PanekL. A.: ‘Design for bolting stratified roof’, Trans. SME, June 1964, 229.
37.
CharetteF. and HadjigeorgiouJ.: ‘Guide Pratique du Soutènement Minier’, 141; 1999, Québec, Association Miniere du Québec Inc.
38.
SimserB. P.: ‘The weakest link – ground support observations at some Canadian Shield hard rock mines’, Proc. 4th Int. Semin. On ‘Deep and high stress mining’, (ed.PotvinY.), 335–348; 2007, Perth, Australian Centre for Geomechanics.
39.
HealD., PotvinY. and HudymaM.: ‘Evaluating rockburst damage potential in underground mining’, Proc. American Rock Mechanics Association 41st US Rock Mechanics Symposium (USRMS): ‘50 years of rock mechanics – landmarks and future challenges’, Golden, CO, USA, June 2006, ARMA, paper no. 1020, CD format only, 12.
40.
HadjigeorgiouJ. and PotvinY.: ‘Overview of dynamic testing of ground support’, Proc. 4th Int. Semin. on ‘Deep and high stress mining’, (ed.PotvinY.), 349–371; 2008, Perth, Australian Centre for Geomechanics.
41.
GaudreauD., AubertinM. and SimonR.: ‘Performance of tendon support systems submitted to dynamic loading’, Proc. 5th Int. Symp. on ‘Ground support in mining and underground construction’, (ed.VillaescusaE. and PotvinY.), 299–312; 2004.
42.
FalmagneV., AndersonT., ConlonB. and JudgeK.: ‘Impact testing of prototype MCB33b and MCB38 bolts’, Unpublished CANMET MMSL Report 05-007 (CR), Canada, 2005.
43.
Doucet, written communication, 2010.
44.
PlayerJ., VillaescusaE. and ThompsonA. G.: ‘An examination of dynamic test facilities’, Proc. Australian Mining Technology Conf., September 2008, CRC Mining, AusIMM, 349–379.
45.
HumanJ.: ‘Testing of the Saturn Prop and Buffalo Headboard at the Savuka Stope Support Test Facility’, SRK report 344720/1, South Africa, 2004, 11.
