采区硐室U型钢支架壁后注浆机理研究及应用

doi:10.11799/ce201408014

Abstract

Abstract:

Chamber group in 42 mining district of Peigou mine was studied with the methods of numerical simulation and field test, to acquired the characteristics and control countermeasures of stability of chamber group. Geological radar and drilling peep instrument were used to test and judge the loosen zone of chamber group surrounding rock, and software UDEC was used to analyze the utilizing range of grouting and grout diffusion under different water cement ratio and injection pressure. According to the lithological characteristics of chamber group, the first support scheme of u-steel support backwall grouting was put forward. The industrial result showed that chamber group was effectively maintained after adopting rational support scheme.

Key words: chamber group, loosen zone of surrounding rock, backwall grouting, numerical simulation

CLC Number:

TD 353

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URL: http://www.coale.com.cn/EN/10.11799/ce201408014

http://www.coale.com.cn/EN/Y2014/V46/I8/41

References

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Study on Mechanism and Application of U-steel Support Backwall Grouting of Chamber Group

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