基于活动控制的岩体结构面几何信息快速获取

doi:10.13278/j.cnki.jjuese.20170293

Abstract

Abstract: In the application of digital close-range photogrammetry, a certain number of control points should be set up to quickly obtain the geometric information of rock mass discontinuities;however the rock structure surface in a special area (tunnel, chamber, and quarry) is relatively fragmented, the characteristic points are extremely insignificant. Under the influence of construction schedule, the control points cannot be placed. To solve this problem, a self-designed portable controller framework was used, on which 28 control points were placed, and the rock mass discontinuities were photographed and interpreted by using VZ workstation to determine the spatial coordinates of the feature points. After this the information of structural planes was obtained according to the given formula. Taking the rock slope of Jingyue No.2 Quarry as the research object, the portable controller frame was installed and inspected, the collection of the external data and the processing of the internal data were carried out. Through point accuracy evaluation based on error theory, the control point coordinates of interpretation and the orientation of rock mass discontinuity were compared with the measured and the accuracy was analyzed. The results show that this method is feasible,and it opens up a new way to rapidly obtain the geometric information of rock mass discontinuities in special areas where it is inconvenient to place control points.

Key words: portable controller frame, digital close range photogrammetry, rock mass discontinuity, control surveying, orientation measurement

CLC Number:

P234.1

Liu Zixia, Chen Jianping, Wang Fengyan, Han Dongliang. Rapid Acquisition of Geometrical Information of Rock Mass Discontinuities Based on Portable Controller Frame[J].Journal of Jilin University(Earth Science Edition), 2019, 49(4): 1192-1199.

References

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Rapid Acquisition of Geometrical Information of Rock Mass Discontinuities Based on Portable Controller Frame

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