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The Research of Abandoned Stope’s Precise Detection and Stability Analysis in Tang Dan Copper Mine

Author: WangLiLei
Tutor: WangLiGuan
School: Central South University
Course: Safety Technology and Engineering
Keywords: Gob Precise Detection Three-dimensional model Stability Analysis Surface subsidence
CLC: TD325
Type: Master's thesis
Year: 2009
Downloads: 92
Quote: 0
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Abstract


In the long-term mining production process, the formation of many mines hundreds of gob. Especially civil predatory mining goaf group left, but different sizes and shapes, layer complicated. Gob caused by the accident also often occur. As we all know, gob actual three-dimensional shape and the precise spatial location of empty areas that affect the stability of the accuracy of numerical simulation results a key factor. Accurately grasp the morphology and size of the empty area is the implementation of an empty area of ??security management and disaster control is an important basic work. With the CMS system detects gob with high efficiency, good visual effect detection results highlight the advantages. Because mine geological and mining conditions of complexity, resulting in goaf stability analysis and treatment more difficult. With computers and modern detection technology, you can create three-dimensional models gob explore goaf space relative position and size of its stability. Also consider a variety of factors from the mine in goaf treatment principles and criteria to be met, the affected area after treatment, safety measures that should be taken. Aiming at the existing mine gob instability, combined with \empty region's actual three-dimensional shape and spatial location based goaf numerical simulation of stability, the technology used in the formation of Tangdan copper mine goaf dealing with aircraft safely and efficiently mining, in order to verify its correctness and reliability. The main research work is as follows: (a) an empty area with CMS to obtain Tangdan mine detection equipment gobs of basic data; (2) how to deal with an empty area of ??the probe data to make it easy to model, and can accurately describe the empty area actual three-dimensional shape; (3) application software to build Tangdan copper DIMINE gob roadway, orebody, fault, surface and stope model works, including three-dimensional space, and can calculate the empty zone volume, roof and floor area, and other parameters analysis goaf group safety situation; (4) explore the forces of rock and an empty area with FLAC3D stress analysis model to explore the stability of its empty area on the surface of the impact; (5) according to the established three-dimensional model and mechanics analysis, forecasting Tangdan mine goaf treatment approximate range of surface subsidence area, empty area as a post processing and set the basis for the security cordon.

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CLC: > Industrial Technology > Mining Engineering > Mine the pressure and support > Rock pressure and rock movement > Rock movement
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