红外线热影像分析探讨矿场爆破岩体损伤检测-中国鑛冶工程学会互动.PDFVIP

紅外線熱影像分析探討礦場爆破岩體損傷 檢測—以花蓮和平地區露天礦場為例* Use infrared thermal graph technology to analysis the rock mass degree * of damage after blasting in open pit mine 1 2 1 2 B.C. Wu Y.C. Ding Infrared thermography is an efficient tool for surface temperature measurement. In principle, heat transfer in any material is affected by the change in material thermal properties. Localized temperature differences on the surface, which may be caused by the subsurface defects, can be found based on the 0.75 ~ images produced by an infrared camera. 10 m . Drilling and blasting is the most widely u sed method in the excavation of open pit mine. Drilling and blasting using high explosive that produce shock wave and high pressure and temperature gas to break and heave the rock. Even under precise design delay 3 to reduce the vibration, the shock wave will damage ~ 5 m() 812 m() the surround rock. The damaged rock masswill result in uncertainty of following operation and support . Therefore, the non– destructive examination of the rock mass and evaluate its degree of damage become a very important issue. The purpose of this research is to explore the use of infrared thermography technology to evaluate the degree of damage of the surrounding rock mass aft