Simulation and Analysis of Forced Caving Blasting Scheme for Overburden Steep Inclined Strata in Coal Mining

Authors

Tiejun Cui, 1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China; ;2. Tunnel & Underground Structure Engineering Center of Liaoning, Dalian Jiaotong University, Dalian 116028, China; ;
Yundong Ma, 2. Tunnel & Underground Structure Engineering Center of Liaoning, Dalian Jiaotong University, Dalian 116028, China; ;
Laigui Wang, 3. School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000;

Abstract

Abstract: According to the actual situation of overburden steep inclined strata with horizontal fracture, the reasonable goaf forced caving blasting schemes are studied. Considering overburden characteristic and representative, two schemes are put forward with the attachment perpendicular to their break point locations. By setting different places of blasting points, the different directions of blasting and blasting area are determined, and the overlying strata movement and development characteristics of blasting fracture are analyzed. The overlying strata movement range is larger and can develop to the surface after blasting; The conclusion is that the influence range of the fracture is wide in the level blasting scheme, while relatively narrow in the vertical blasting scheme; the ground subsidence of the level blasting scheme is 20% larger than that of the vertical blasting scheme.

Recommended Citation

Cui, Tiejun; Ma, Yundong; and Wang, Laigui (2019) "Simulation and Analysis of Forced Caving Blasting Scheme for Overburden Steep Inclined Strata in Coal Mining," Journal of System Simulation: Vol. 30: Iss. 4, Article 21.
DOI: 10.16182/j.issn1004731x.joss.201804021
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss4/21

First Page

1384

Revised Date

2016-06-24

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201804021

Last Page

1389

CLC

X936

Recommended Citation

Cui Tiejun, Ma Yundong, Wang Laigui. Simulation and Analysis of Forced Caving Blasting Scheme for Overburden Steep Inclined Strata in Coal Mining[J]. Journal of System Simulation, 2018, 30(4): 1384-1389.

DOI

10.16182/j.issn1004731x.joss.201804021