Investigation of some controllable factors that impact the stress state in cemented paste backfill

Doherty, J.P. and Hasan, A. and Suazo, G.H. and Fourie, A. (2015) Investigation of some controllable factors that impact the stress state in cemented paste backfill. Canadian Geotechnical Journal, 52 (12). 1901--1912. ISSN 0008-3674

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Abstract

This paper presents in-stope measurements of total stress and pore-water pressure at strategic locations within three underground stopes at the Raleigh mine site (Western Australia) that were filled with cemented paste backfill (CPB). The three stopes were very similar in shape. Key differences among the stopes were the filling and resting schedules, the barricade drainage systems used, and the cement content of the CPB. Data from the stopes are compared to determine which controllable factors most significantly influence barricade pressures during and after filling. The most significant factor was the scheduling of rest periods between filling, with even very short pauses in filling dramatically reducing the rate of increase of pore-water pressure and total stress with increasing height of fill.

Item Type: Article
Uncontrolled Keywords: Barricade, Cemented paste backfill, Consolidation, Drainage, Hydration, Underground mine stopes, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Depositing User: Karen Kornalius
Date Deposited: 01 Aug 2016 02:25
Last Modified: 01 Aug 2016 02:25
URI: http://ir.unimas.my/id/eprint/12725

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