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Title: The development of remote controlled survey equipment to measure abandoned mine workings
Authors: Stuttle, Michael C.
Issue Date: 1999
Publisher: © Michael Christopher Stuttle
Abstract: Abandoned mine workings pose a serious threat to the stability of structures built on the land above them. After a number of much publicised collapses in the UK, the Government has made grants available, under the Derelict Land Scheme, to identify potentially dangerous areas above abandoned workings. These grants are used by local authorities to fund investigations to determine the size, position and state of workings and, if necessary, the infilling of these hazards. To monitor the state and extent of dry workings the geotechnical engineer has, at present, to rely mainly on closed circuit television surveys (CCTV). At best these surveys give only limited visual information a small distance away from the camera head and do not give the detailed, accurate surveys needed to enable plans to be formulated to monitor or treat the workings. It was following work undertaken by the Author in 1992 at the Hurst Hill mine in the Black Country of the West Midlands that the inadequacies of the CCTV became apparent and the idea of a new type of survey instrument was proposed. This thesis details the development of such an instrument. The thesis starts by examining the typical nature of surface regeneration above abandoned mine workings and investigates the mechanics of their collapse. This is followed by an investigation into existing technology for making remote measurements below surface. There follows an investigation into specific instrument components that could be used to develop a new type of instrument. A design specification is proposed to construct an instrument to perform surveys of dry abandoned mineworkings. There follows a pictorial record of the construction of the original prototype, its failing following field trials is examined. In a similar way four further prototypes are then examined. The testing of the final two prototypes, under controlled conditions, is then recorded. There follows a chapter on the varied trials carried out by the author with the instrument. Finally the thesis concludes with a summary of the developments to date, conclusions and a recommendation for further research. Finally it should be noted here that the project was funded directly by the author who is self employed and, as such, some delays were caused by the inability to immediately fund repairs following damage to the instrument or the design changes and modifications required. A number of other obstacles had to be overcome that used valuable resources and time, primary amongst these was defending a patent infringement case in the American and Canadian courts.
Description: A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.
Version: Closed access
URI: https://dspace.lboro.ac.uk/2134/11018
Appears in Collections:Closed Access PhD Theses (Civil and Building Engineering)

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