摘要
分析了岩石在撞击过程中的能量转化及其升温机理,推导出了理论升温公式。同时,采用TVS–2000MKII高精密度红外热成像系统,测量了大理岩和砂岩在撞击过程中的升温值,并给出了其升温值与岩石质量和撞击角度的关系曲线。最后,得出了岩石撞击过程中的升温的主要因素为:岩石破坏时释放热量、撞击时摩擦生热和岩石受压缩而升温等三个方面,同时通过实验进行了验证。
The energy transformation and heating-up mechanism in the course of the rock ram are analyzed, and the theoretical heating-up formula is acquired. At the same time, the heating-up of marble and sandstone in the course of rock ram are measured by the TVS-2000 MKII thermal-image formation system, and then the relation curves of heating-up and quality of rock and those of heating-up and contacting angle are acquired. It is concluded that there are three major factors, that is fracturing of rock, friction and compression of rock, during the rock ram.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第9期1535-1538,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
国家杰出青年科学基金项目(50225414)
国家自然科学基金重大项目(50490270)
博士点基金项目(20010290003)
关键词
岩石力学
岩石撞击
升温
机理
Analysis
Fracture
Friction
Marble
Rock mechanics
Sandstone
