水环境影响下花岗岩巷道岩爆红外辐射特性试验研究

发布时间：2018-05-16 14:25

  本文选题：水环境 + 岩爆　； 参考：《矿产保护与利用》2017年02期

【摘要】：以红外热像仪为观测手段,在室内进行了自然和饱水状态下花岗岩试样的巷道岩爆模拟试验,对水环境效应下花岗岩巷道岩爆的红外辐射特性进行了研究。研究发现饱水试样岩爆发生剧烈程度有所减弱,能量释放速率更为缓慢。水环境影响下,岩石试样的红外三种辐射温度(平均、最高、最低红外辐射温度)具有不同的变化规律:岩爆过程中,饱水花岗岩AIRT与载荷的关系更为密切,增温幅度大于自然试样。在岩爆发生时,饱水花岗岩MAIRT升温幅度小,MIIRT的下降幅度大于自然状态下试样。该研究为地下工程中岩爆红外辐射预警技术提供理论基础。
[Abstract]:Using infrared thermal imager as observation means, the rock burst simulation tests of granite samples in natural and saturated state were carried out indoors. The infrared radiation characteristics of granite roadway rockburst in water environment were studied. It is found that the intensity of rockburst in saturated samples is weakened and the rate of energy release is slower. Under the influence of water environment, the three infrared radiation temperatures (average, highest and lowest) of rock samples have different variation rules: during the rock burst, the AIRT of saturated granite is more closely related to the load. The range of temperature increase is larger than that of natural sample. At the time of rock burst, the decrease of MAIRT temperature in saturated granite is larger than that in natural state. The research provides a theoretical basis for early warning technology of rock burst infrared radiation in underground engineering.
【作者单位】： 华北理工大学矿业工程学院;华北理工大学以升创新教育基地;河北省矿业开发与安全技术重点实验室;
【基金】：河北省高等学校科学研究项目(QN2016124、QN2016125) 国家级大学生创新创业训练计划项目(201410081006)
【分类号】：TD315
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本文编号：1897219