International Journal of Modern Education and Computer Science (IJMECS)
ISSN: 2075-0161 (Print), ISSN: 2075-017X (Online)
Published By: MECS Press
IJMECS Vol.3, No.5, Aug. 2011
A New Method of Equivalent Material Model Deformation Observation
Full Text (PDF, 476KB), PP.40-46
Equivalent Material Model is a staple method that can be used to imitate the strata and the ground surface movement which caused by human’s underground activities, such as coal resources extraction. The precision of indoor imitations are mainly decided by ways of models’ deformation observation. This paper proposes a new method of measuring models after analyzing the status of deformation observation of equivalent material models. In this paper, the industrial measuring system is used to measure deformations of the model. The system includes two main parts: photographic surveying of industry instruments and structure lighting scanning devices. The first part is used to get the coordinates of the target points which are set on the model; the second one is used to scan the model surface for catching the cracks on the model surface. Due to the high accuracy of photographic surveying of industry method, it can meet the need of monitoring imperceptible movements of target points; also the structure lighting scanning has a high precision on scanning the model surface, which can get the very thick points cloud of the model surface. The system is originally used for reverse engineering, and it scarcely used for Equivalent material model until our research used, so there is no mature method on data management. This paper researches the special data procession method for the model, and results show that methods in the paper are suit for the industrial measuring system.
Cite This Paper
Lailiang CAI,Kan WU, Qisheng YU,Jinpeng FENG,"A New Method of Equivalent Material Model Deformation Observation", IJMECS, vol.3, no.5, pp.40-46, 2011.
Helnut Kratzsch. “Mining Subsidence Engineering”.Springer-Verlag Berlin Heidelberg New York. 1983.
HE Guoqin, YANG Lu, “Mining Subsidence Study,” Xuzhou: Publisher of China University of Mining&Technology, pp. 224-240, 1991. (in Chinses)
LIU Jibo, DAI Huayang, YAN Yueguan, etc, “The precision analysis of equivalent material model deformation monitoring using theodolite,” Mine Surveying, pp.77-79, Mar 2008. (in Chinses)
CAI Limei, LI Shao-hui, “Improving the automated grid methods to measure the deformation of the similar material model,” China Measurement Technology, vol.31 NO.1, pp.72-74(in Chinese)
YANG Hua-chao, DENG Ka-zhong, GUO Guang-li, “Monitoring technique for deformation measurement of similar material model with digital close-range photogrammetry ,” Journal of China Coal Society, vol.31, NO.3, pp.292-295(in Chinese)
YANG Huachao, YU Ruipeng, LIU Chao, etc, “Deformation measurenent of simulated material model based on image sequence,” Journal of Liaoning Technical University, Vol.25 Supp1, pp.40-42(in Chinese)