Geotechnical Behaviour of Frozen Mine Backfills

Geotechnical Behaviour of Frozen Mine Backfills

Show full item record

Title: Geotechnical Behaviour of Frozen Mine Backfills
Author: Han, Fa Sen
Abstract: This thesis presents the results of an investigation of factors which influence the geotechnical properties of frozen mine backfill (FMB). FMB has extensive application potential for mining in permafrost areas. The uniaxial compressive strength (UCS) of hardened backfill is often used to evaluate mine backfill stability. However, the deformation behaviour and stiffness of the FMB are also key design properties of interest. In this thesis, uniaxial compressive tests were conducted on FTB and FCPB samples. Information about the geotechnical properties of FMB is obtained. The effects of FMB mix components and vertical compression pressure on the geotechnical properties of FMB are discussed and summarized. An optimum total water content of 25%-35% is found in which the strength and the modulus of elasticity of the FTB are 1.4-3.2 MPa and 35-58 MPa, respectively. It is observed that a small amount (3-6%) of cement can significantly change the geotechnical properties of FTB.
Date: 2011
URI: http://hdl.handle.net/10393/20250
Supervisor: Fall, Mamadou
Faculty: Génie / Engineering
Degree: MASc

Files in this item

Files Size Format View
Han_Fa Sen_2011_Thesis.pdf 2.198Mb application/pdf View/Open

This item appears in the following Collection(s)

Show full item record


Contact information

Morisset Hall (map)
65 University Private
Ottawa ON Canada
K1N 6N5

Tel. 613-562-5800 (4563)
Fax 613-562-5195

ruor@uottawa.ca