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Browsing by Subject "grout quality"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    System monitoringu stanu zabezpieczenia wyrobiska w aspekcie oceny jakości wklejenia żerdzi kotwiowych oraz kotwi linowych
    (Wydawnictwa AGH, 2009) Staniek, Andrzej
    The rock bolt support system plays a great role as an element of safe maintenance of roof sections in coal mines almost all over the world. With the aim to develop an efficient monitoring system of quality of grouted rock bolts an apparatus of new generation was invented. The monitoring system is based on the method for non-destructive identification of continuity of resin layer of grouted rock bolts [10], worked out in Central Mining Institute. The apparatus has implemented new registration methods, wireless data transfer and robust enclosure capable to resist heavy environmental conditions (IP65). A new way of exporting collected data is proposed as well as launching of analytical and diagnose center for assessment of quality of rock bolt installation in Central Mining Institute is recommended. In the article the outline of the method, technical description of the invented apparatus, wireless data export to a workstation after measurements and validation of the measurement chain are also presented.