任瑞峰, 梁鹏, 孙林,等.不同含水条件下巷道掘进面破裂红外辐射特征试验研究[J].河南理工大学学报（自然科学版）,2021,40(3):18-25.

REN R F, LIANG P, SUN L,et al.Experimental study on infrared radiation characteristics of roadway heading facefracture under different water cut conditions[J].Journal of Henan Polytechnic University(Natural Science) ,2021,40(3):18-25.

不同含水条件下巷道掘进面破裂红外辐射特征试验研究

任瑞峰1,2, 梁鹏1,2, 孙林1,2, 田宝柱1,2, 姚旭龙1,2, 刘祥鑫1,2

1.华北理工大学 矿业工程学院，河北 唐山 063009;2.华北理工大学 河北省矿业开发与安全技术重点实验室，河北 唐山 063009

摘要:针对巷道掘进面前方含水构造（干燥无水、无压水、承压水）难以判别的问题，通过开展不同含水条件下粉砂岩双轴加载试验，利用红外热像仪对岩石破裂过程进行监测，分析巷道受压过程破裂演化规律及温度场时空演化特征。结果表明：不同含水条件下的岩石破裂过程大致分为4个阶段，且加载过程岩石表面平均红外温度均随着载荷呈线性增加；若岩石破裂前兆为突然增温型，则表明破裂面前方无水；若岩石破裂前兆为突降转升型，则表明破裂面前方存在水体，且水压越大，温度曲线由升转降的时间越早，低温现象越明显。研究结果可为实际工程巷道开挖过程中突水事故的遥感监测及预防提供参考依据。

关键词:含水条件;巷道掘进面;红外辐射;温度场;时空演化特征;破裂前兆

doi:10.16186/j.cnki.1673-9787.2019110051

基金项目:国家自然科学基金资助项目（51574102）；河北省自然科学基金资助项目（E2017209241）；河北省高校百名优秀创新人才支持计划项 目（SLRC2017050）

收稿日期:2019/11/13

修回日期:2020/01/03

出版日期:2021/05/15

Experimental study on infrared radiation characteristics of roadway heading facefracture under different water cut conditions

REN Ruifeng1,2, LIANG Peng1,2, SUN Lin1,2, TIAN Baozhu1,2, YAO Xulong1,2, LIU Xiangxin1,2

1.College of Mining Engineering， North China University of Science and Technology， Tangshan  063009 ，Hebei， China;2.Hebei Province Key Laboratory of Mining Development and Safety Technology， North China University of Science and Technology， Tangshan  063009 ， Hebei， China

Abstract:In order to distinguish the water condition （ dry， unconfined water and confined water） in front of the roadway heading face， the experiments of different conditions of siltstone by biaxial loading were conducted. Thermal infrared was used to monitor the steady failure process. The evolution rules of the roadway and the spatiotemporal evolution characteristics were analyzed. The results showed that：The rock failure with different water cut could be divided four stages， and all of the average infrared temperatures of rock surface increased linearly with loading in the process； If the precursor of rock fracture was suddenly up， then it was dry in front of fracture plane； If the precursor of rock fracture was suddenly down and then turned to rise， then there was water in front of fracture plane， and the greater pressure could make the decreasing of the temperature curve go down prior， and the low temperature of infrared image would be more obviously. The results could provide a reference for remote sensing monitoring and prevention of water inrush accidents in the excavation of roadway.

Key words:water cut condition;roadway heading face;infrared radiation;temperature field;spatiotemporal evolution characteristic;fracture precursor

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