水对玄武岩破裂过程声发射及红外影响试验研究

为研究水对硬脆性岩石破裂的影响,采用玄武岩进行饱水、自然、干燥处理,开展单轴破坏试验。以美国Flir Therma CAM SC3000红外热像仪以及美国物理声学PCI-2型声发射监测系统为研究监测手段,开展水对玄武岩破坏过程的声发射以及红外影响试验的影响研究。结果表明:水对玄武岩破裂声发射及红外造成了一定的影响。含水率的提高,减少了玄武岩破裂过程中声发射平静期所占的相对时间,其中干燥、自然、饱水状态分别为9.44%、4.04%、3.76%。水的存在可以促进岩石破裂过程中的红外辐射现象。研究成果对于了解玄武岩在不同含水状态下受力灾变的声发射、红外特征具有重要理论意义,也为进行岩石灾变的预测预报奠定了实验基础,进而能为矿山灾害和岩石工程监测、预警提供理论指导与技术基础。

Experimental Study on Acoustic Emission and Infrared Characteristics of Basalt in Process of Destruction under Different Hydrous State

In order to study water on the impact of brittle rock failure , a study on AE features and Infrared of basalt with different hydrous degrees of dry , natural and full of water during uniaxial compressive failure processbased on Flir Therma CAM SC 3000 thermal infrared imager and PCI -2 acoustic emission detection analysis system .The results show that different hydrous caused some im-pacts for the AE and infrared of the basalt failure .Improve moisture content , which reduced the rel-ative time for AE quiet period of basalt failure process ( hydrous degrees of dry , natural and full of water were 9.44%, 4.04%, 3.76%).The presence of water can promote the rock failure process infrared radiation phenomena .Research results have important theoretical significance for the under-standing of acoustic emission and infrared characteristics for the basalt different hydrous , and lays an experimental foundation for the prediction of rock disaster , and also can provide theoretical guid-ance and technical basis for mine disaster and rock engineering monitoring , early warning .