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    Goaf survey and design and control technology PPT tutorial
    Author:boyof  Source:本站  Post time:2013-3-6 16:08:11  Click:1333

    The goaf survey and design control technology

    The goaf is left underground mineral mined voids District,


            Mineral mining, can be divided into

            Old gob, goaf now and the next goaf.


            Orebody is mined, up from the roof strata form three zones "- breaking down with water flowing fractured zone and bending with surface subsidence, resulting in continuous or non-continuous deformation resulting series of environmental geotechnical problems , such as the plains stagnant water, road cracks, houses collapsed, the reduction of arable land, farmland cut, mine construction projects left hidden.

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