School of Mining Engineering,North China University of Science and Technology Hebei Provncial Key Lab of Mine Development and Safety Technology

为了获取软岩巷道掘进工作面突水过程的红外时空演化特征,为实际工程巷道开挖过程中突水事故以及隧道渗漏水的时空预测与遥感监测提供理论基础,研究了粉砂岩双轴加载突水过程的红外辐射特征,从时、空要素综合预测识别突水信息。试验结果表明:1根据突水量的大小,将粉砂岩突水演化过程划分为"渗水→滴水→淋水→涌水"4个阶段;2粉砂岩突水不同阶段红外辐射温度曲线特征各不相同,其中升温速率加快可作为突水量增大的前兆,最低辐射温度出现骤升骤降预示突水的发生;3加载过程中,高温异常区即为渗水的发生位置,也是最终突水位置。渗水前10 s左右,对应渗水部位会出现高温异常,渗水发生后,高温异常转低温异常,且随着水量增大,降温幅度越大。利用红外热像仪,从时空综合预测角度研究突水的识别和监测预报,在一定程度上可以减少实际工程中突水事故带来的损失。

Aostact : n order to get theinfrared tine-space evolution features of the waterinrush process of soft rock roadway heading face and to provide certain theoreticalbase to the time-space predicton and remote sensing monitoring and measuring on water inrush acident during the excavatio procss of the mine actial ngineeringroadway and the water leakage of the tunel.the paper had a studyon the inirared radiaton features ofth silistone during the water inrush prcess of the biaial fading and the water inrush information were comprehensively predicted and identfied from the time-space factors The testresutis showed that 1 based on the size of thewater inrush.the water inrush evolution proc.ss ofthe siltistone was divided in to seepage → drioing water → water soray -= water inush fou steps 2 the infrared radation temperature curve features of th silistone water inrush was indidually dfferent at each diferent stage.,the temperatre rising raidly wauld be a precusorof thewater inrush voume increased and a suden rising or a sudden dropping of a min radiaton temperature would be a predicted warer inush ocured; 3 during the loading process a igh temperature abnomal zone would be the location ofthe seepage occured and wouid be the fimal warer inorsh location.Before abut 10 s f the seepage occurred,the related seepage location would have an abnormal high temperature. After the seage oc.urred,the abnormal nigh temperature would be changed toan abnormal low temperature and with the water volume increased,the temperature reduction would be highly reduced An infrared thermal imager was applied to study the water nrush identfcation and the mornitoring and measuring prediction from a view of the tinme-space comprehensive predction.On a ceran dege.thelos by thewater inrush accident could be reduced in the actual engineering project.

国家自然科学基金资助项目(51374088,51174071,51574102)；河北省自然科学基金资助项目(E2012209047)；