中原工学院学报
中原工學院學報
중원공학원학보
JOURNAL OF ZHONGYUAN INSTITUTE OF TECHNOLOGY
2015年
3期
76-79
,共4页
地应力测量%Kaiser效应%围岩稳定性%数值模拟
地應力測量%Kaiser效應%圍巖穩定性%數值模擬
지응력측량%Kaiser효응%위암은정성%수치모의
in-situ stress measurement%Kaiser effect%stability of surrounding rocks%numerical simulation
为解决涡北煤矿-450水平运输大巷破坏严重的问题,采用岩石Kaiser效应法对-450水平进行地应力测量。结果表明：-450水平最大主应力为15.36 MPa,属中高应力区,水平应力过大不利于巷道维护。在地应力测试基础上,应用UDEC数值模拟对变形量进行了预测。研究表明,锚杆支护完全能够满足围岩稳定的要求,可为巷道开挖提供合理的支护方案,为矿区巷道围岩控制提供借鉴和指导。
為解決渦北煤礦-450水平運輸大巷破壞嚴重的問題,採用巖石Kaiser效應法對-450水平進行地應力測量。結果錶明：-450水平最大主應力為15.36 MPa,屬中高應力區,水平應力過大不利于巷道維護。在地應力測試基礎上,應用UDEC數值模擬對變形量進行瞭預測。研究錶明,錨桿支護完全能夠滿足圍巖穩定的要求,可為巷道開挖提供閤理的支護方案,為礦區巷道圍巖控製提供藉鑒和指導。
위해결와북매광-450수평운수대항파배엄중적문제,채용암석Kaiser효응법대-450수평진행지응력측량。결과표명：-450수평최대주응력위15.36 MPa,속중고응력구,수평응력과대불리우항도유호。재지응력측시기출상,응용UDEC수치모의대변형량진행료예측。연구표명,묘간지호완전능구만족위암은정적요구,가위항도개알제공합리적지호방안,위광구항도위암공제제공차감화지도。
To solve the problem of transportation roadway serious damage in -450m of Wobei mine, the in-situ stress has been measured by Kaiser effect of rock. The results show that the maximum principal stress at -450m is 15. 36MPa, which is in a high stress area, and the high horizontal stress is unfavorable for roadway support. Based on the a-nalysis of test, the numerical simulation UDEC method is applied to predict for the deformation amount. It is shown that bolting is able to suffice the requirements of rock stability. Supporting program is provided for roadway excavation, it is the learned and guiding significance to control the surrounding rocks.
