节理体积的计算方法
来源期刊：中南大学学报(自然科学版)2012年第11期
论文作者：范祥 曹平 张春阳
文章页码：4420 - 4425
关键词：节理表面形貌；节理体积；剪切试验
Key words：topography of joint surface; joint volume; shearing test
摘 要：定义节理体积的概念，提出计算节理体积的积分公式和离散公式，采用三维非接触式高精度激光形貌仪(Talysurf CLI 2000)扫描剪切前后的节理表面，列举节理体积计算的实例。研究结果表明：不同法向应力剪切作用导致相同高度上节理体积磨损不相等；当节理上下盘耦合良好时，节理表面上较高凸起体更加容易受到磨损，受到磨损凸起体的高度主要集中在中间高度范围内。
Abstract: The joint volume was defined. The integral and discrete formulas for computing joint volume were put forward. Joint surfaces were scanned with the 3D non-contact scanner (Talysurf CLI 2000) both prior to and after each shearing test. An example of computing joint volume was given. The results show that shearing tests under different normal stresses can lead to unequal volume losses at the same height, and the higher islands on the surfaces of matched rock joints are easilier worn away and the heights of the damaged island are concentrated in the mid-height range.
范祥，曹平，张春阳
(中南大学 资源与安全工程学院，湖南 长沙，410083)
摘 要：定义节理体积的概念，提出计算节理体积的积分公式和离散公式，采用三维非接触式高精度激光形貌仪(Talysurf CLI 2000)扫描剪切前后的节理表面，列举节理体积计算的实例。研究结果表明：不同法向应力剪切作用导致相同高度上节理体积磨损不相等；当节理上下盘耦合良好时，节理表面上较高凸起体更加容易受到磨损，受到磨损凸起体的高度主要集中在中间高度范围内。
关键词：节理表面形貌；节理体积；剪切试验
FAN Xiang, CAO Ping, ZHANG Chun-yang
(School of Resources and Safety Engineering, Central South University, Changsha 410083, China)
Abstract:The joint volume was defined. The integral and discrete formulas for computing joint volume were put forward. Joint surfaces were scanned with the 3D non-contact scanner (Talysurf CLI 2000) both prior to and after each shearing test. An example of computing joint volume was given. The results show that shearing tests under different normal stresses can lead to unequal volume losses at the same height, and the higher islands on the surfaces of matched rock joints are easilier worn away and the heights of the damaged island are concentrated in the mid-height range.
Key words:topography of joint surface; joint volume; shearing test
