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Theoretical analysis of the secondary development of mining-induced surface cracks in the Ordos region.
- Source :
- Environmental Earth Sciences; Oct2017, Vol. 76 Issue 20, p1-9, 9p
- Publication Year :
- 2017
-
Abstract
- Prior studies have indicated that mining-induced surface dynamic cracks in eastern China only undergo one 'expanding-closure' development cycle. However, field measurements from the Bulianta mines of northwestern China demonstrated that ground dynamic cracks in the Ordos region went through two 'expanding-closure' cycle. Using in situ measurement data and theoretical analysis, we find that the strata control theory cannot reasonably explain this special phenomenon. In this paper, we propose a novel explanation from the perspective of soil mechanics. A comparison of two field examples in eastern and northwestern China demonstrates that our theoretical explanation is in agreement with in situ observations and therefore is a reasonable interpretation for the secondary development of ground dynamic cracks in the Bulianta mines. This study provides a theoretical basis for the mechanism of mining-induced ground dynamic cracks. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18666280
- Volume :
- 76
- Issue :
- 20
- Database :
- Complementary Index
- Journal :
- Environmental Earth Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 126418558
- Full Text :
- https://doi.org/10.1007/s12665-017-7050-6