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Study on unstable rockmass conjectural method of stope roof at Sanshandao Golden Mine
Zhao, Xing-Dong (1); Liu, Hong-Lei (1); Guo, Jia-Teng (1); Yang, Su-Jun (1)
2011, 32 (7):
1028-1031.
DOI: -
A 3D rockmass non-contact surveying system was employed to identify the space geometry parameters of stope roof. Based on this, a new 3D joint modeling and analyzing system was developed, and applied to set up 3D spacing model of stope roof, including the joint structure. According to space geometry parameters of structural plane of stope roof, structural plane, such as joint, fault and constitution, were stretched, which will intersect in spacing position and form the wedge structure. The spacing position, shape, and capacity of the wedge structure can be recognized, and its stability of the wedge structure can be analyzed. By applying these studying results, the spacing structure of stope roof has been surveyed and established the 3D modeling in 40055# stope of Sanshandao Golden Mine. The spacing position of unstable rockmass has been determined on site, which can provide the real and reliable data helpful to the analysis of the stope stability and evaluation of risk.
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