锚杆支护在煤巷中的试验研究

The experimental study on support system of bolt in entry

采用自行研制的倒楔式锚杆进行非规则煤层巷道断面的支护技术 ,实现了煤层巷道的安全生产。试验研究表明 ,该类岩层中巷道围岩松动圈厚度具有随围岩暴露时间的增长而显著增大的特征 ,及时支护和整体支护是该技术在该类岩层中应用的关键。

Using the self produced invert sphenoid bolt to support the irregular coal entry can ensure the safety in producing procedure. Study and tests show that this technology is practical and economical and can improve the competition power of coal enterprises.