黄金科学技术 ›› 2023, Vol. 31 ›› Issue (2): 313-322.doi: 10.11872/j.issn.1005-2518.2023.02.158
张浩1,2(),卿黎1(),邱士利2,寇永渊3,郭赟林3,夏胜衍3
Hao ZHANG1,2(),Li QING1(),Shili QIU2,Yongyuan KOU3,Yunlin GUO3,Shengyan XIA3
摘要:
针对接触式测量方法无法满足深部高陡岩体结构信息采集的要求,以金川二矿+650 m水平卸载站硐室掌子面为研究对象,采用三维激光扫描仪获取其表面点云数据集,并对点云数据进行处理提取岩体结构信息参数,并利用校核算法与地质测量结果验证数据的可靠性。结果表明:(1)通过对高精度获取的扫描数据进行快速处理,在控制点已知和未知的情况下,均可获取结构面的产状信息,降低了人员获取结构面信息的危险性;(2)利用最小二乘法计算产状、近似平行结构面组间距算法计算间距,以及将实测结构面产状与提取出来的结构面信息做差比较,可知倾向和倾角误差均在±6°范围以内,间距误差在±0.03 m以内,验证了提取数据的可靠性;(3)在金川二矿+650 m卸载站硐室掌子面结构面产状等信息的提取中应用了本文方法,有效识别了结构面产状信息。该项研究工作不仅避免了危险性,而且提高了精度与效率。
中图分类号:
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