自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 15    No. 2    April 2008

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3D cavity detection technique and its application based on cavity auto scanning laser system
LIU Xi-ling(刘希灵)1, LI Xi-bing(李夕兵) 1, LI Fa-ben(李发本)2,ZHAO Guo-yan(赵国彦)1, QIN Yu-hui(秦豫辉)2

1. School of Resources and Safety Engineering, Central South University, Changsha 410083, China;2. Luoyang Luanchuan Molybdenum Group Incorporated Company, Luoyang 471500, China

Abstract:Ground constructions and mines are severely threatened by underground cavities especially those unsafe or inaccessible ones. Safe and precise cavity detection is vital for reasonable cavity evaluation and disposal. The conventional cavity detection methods and their limitation were analyzed. Those methods cannot form 3D model of underground cavity which is used for instructing the cavity disposal; and their precisions in detection are always greatly affected by the geological circumstance. The importance of 3D cavity detection in metal mine for safe exploitation was pointed out; and the 3D cavity laser detection method and its principle were introduced. A cavity auto scanning laser system was recommended to actualize the cavity 3D detection after comparing with the other laser detection systems. Four boreholes were chosen to verify the validity of the cavity auto scanning laser system. The results show that the cavity auto scanning laser system is very suitable for underground 3D cavity detection, especially for those inaccessible ones.

 

Key words: cavity detection; 3D laser detection; cavity auto scanning laser system

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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