用三维激光成像技术调查高陡边坡岩体结构

论文针对“罗盘 皮尺”传统模式调查高陡边坡岩体结构中的缺点,提出了三维激光成像技术调查高陡边坡岩体结构的新方法。利用三维激光成像技术可获得完全实景的数字模型,并在该数字模型上可直接量取点、线、面和三维实体空间坐标,从而进行结构面产状、迹长与连通率、间距等岩体结构特征参数计算和地质剖面切图。最后,以营盘山陡崖边坡为例,详细阐述了三维激光成像技术调查高陡边坡岩体结构特征参数方法及过程。结果表明,利用三维激光成像技术所得的结构面产状、间距等岩体结构特征参数要优于传统的“罗盘 皮尺”量测结果。因此,三维激光成像技术的引入,必将引发岩体结构特征参数测试技术革新性的发展。

Investigation of rock mass discontinuity by 3D laser imaging technique on a large and stiff slope

To avoid the limitations of rock discontinuity investigation by the conventional method with geological compass and ribbon tape at large and stiff slope,a new method of rock discontinuity investigation by the 3D laser imaging techniqueis introduced,With an elaborating 3D digital model obtained by the 3D laser imaging technique,you only need to hit the mouse key gently to present the coordinates of geological point,line and plane,especially rock discontinuity.Then,a discontinuity dip and its angle,trace and connectivity,spacing interval and geological section cuttings are easily solved out as suggested in this paper. Taking the Yingpanshan large and stiff slope as an example,the technology of rock discontinuity investigation by the 3D laser imaging system on large and stiff slope is illuminated in detail.The research results show that the 3D laser imaging technique is more laborsaving and timesaving to investigate rock discontinuity on large and stiff slope than the conventional method with geological compass and ribbon tape.Therefore,with the development of 3D laser imaging technique and its popularization in engineering geology,updating the technique of rock discontinuity investigation is offhanded and soon.