【摘要】 应用红外热像技术,对锚杆与围岩加载变化破坏过程中的红外辐射现象进行了实验研究.结果表明:无锚杆试块红外辐射温度随着荷载增加,呈现整体均匀升温变化;试块布置锚杆后其承载能力增加,红外辐射温度也明显升高,应力峰值后,在锚杆周围形成一个由不同等温线组成的区域,由内向外温度逐步降低,锚杆周围红外温度场与应力场,在形状和空间分布上有很好的相似性,红外热像高温区和低温区分别对应高应力区和低应力区.更多还原

【Abstract】 The infrared radiation experiments on bolt and rock in the process of loading were carried out.It is found that the infrared radiation temperatures of non-bolted block rise as a whole and uniformly before the stress peak,with the increase of loading,the sustaining ability of block is increased after fixing the bolt.The infrared radiation temperature also rises significantly.The bolted rock sees a local dissimilation in the thermal image after the stress peak.The multi-layer round infrared radiation isothermal lines are formed around bolt. The closer from the bolt centre,the higher will be the temperature,the farther away from the bolt centre,the lower temperature will be.The temperature is gradually reduced from inside to outside.The change of infrared radiation temperature fields responds to the stress fields around bolt.更多还原