Lyu, WS, Yang, P & Cai, SJ 2015, 'Some physical and mechanical properties of cemented fillings under high pressure', in R Jewell & AB Fourie (eds), Proceedings of the 18th International Seminar on Paste and Thickened Tailings
, Australian Centre for Geomechanics, Perth, pp. 407-418, https://doi.org/10.36487/ACG_rep/1504_31_Lyu
With the application of large-scale filling mining in deep mines with high ground pressure, the physical and mechanical properties of cemented fillings under high stress conditions need to be further studied. The confined consolidation test was completed under the pressure from 0.5 to 32 MPa to simulate the pressure change of backfillings 1,000 m beneath the surface. The uniaxial compressive strength (UCS) of filling specimens was studied before and after consolidation, and with further curing after consolidation. The strength changing properties of fillings under high pressure gave some new information for further understanding the interaction of fillings and surrounding rock. The study result is supplement to traditional backfilling theories.
Bin, Y 2000, ‘Experimental study on compressive properties of coarse grain mixed fillings’, Copper Engineering, vol. 4, pp. 1-3.
Bingnan, H & Aiguo, G 2009, ‘Testing study on coal waste backfilling material compression simulation’, Journal of China Coal Society, vol. 8, pp. 1076-1080.
Constantinides, G 2006, ‘Invariant mechanical properties of calcium-silicate-hydrates (C-S-H) in cement-based materials: instrumented nanoindentation and microporomechanical modelling’, PhD thesis, Massachusetts institute of Technology.
Hu, KX & Kemeny, J 1994, ‘A fracture mechanics analysis of the effect of backfill on the stability of cut and fill mine workings’, International Journal of Rock and Mechanics and Mining Sciences, vol. 31, no. 3, pp. 231-241.
Kitamura, R & Kisamuki, G 1996, ‘Constitutive model for consolidation based on microscopic consideration by probability theory’, Proceedings of the International Offshore and Polar Engineering Conference, vol. 1, International Society of Offshore and Polar Engineers, Mountain View, pp. 456-459.
Lifeng, D 2003, ‘Research of crustal stress measurement with overcoring method in Xincheng Gold Mine’, Nonferrous Mines, vol. 12, pp. 18-21.
Rahardjo, H 1990, ‘The study of undrained and drained behaviour of unsaturated soils’, PhD thesis, University of Saskatchewan.
Sijing, C 1983, ‘A simple and convenient method for design of strength of cemented hydraulic fill’, Proceedings of the International Symposium, A.A. Balkema, Rotterdam, pp. 405-412.
Stewart, JM, Clark, IH & Morris, AN 1986, ‘Assessment of fill quality as basis for selecting and developing optimal backfill systems for South African gold mines’, South African Institute of Mining & Metallurgy, vol. 1, pp. 255-270.
Tennisa, PD & Jennings, HM 2000, ‘A model for two types of calcium silicate hydrate in the microstructure of Portland cement pastes’, Cement and Concrete Research, vol. 30, pp. 855-863.
Wenqi L, Weibin, Z & Jialin, X 2004, ‘Experimental study on compression characteristics of grouting material in coating separation void’, Proceedings of The Annual Meeting Anthology of The Chinese Academic Association, pp. 414-417.