Study on the dynamic damage evolution during coal seam pulse water infusion

Authors

  • Junqing Meng School of Resource and Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China

Keywords:

coal seam water infusion, pulse, liquid-solid coupling, dynamic damage evolution, ABAQUS

Abstract

Dynamic damage evolution during coal seam pulse water infusion is simulated through secondary development of ABAQUS software in this paper in order to obtain the rule of dynamic damage evolution of coal seam around the pulse water infusion hole. It provides a new quantitative method of determining coal seam pulse water infusion parameters and location. Therefore, the effect of different parameters of pulse water infusion on dynamic damage evolution of coal around the infusion hole was analyzed and numerical simulation results show that the quantity of coal damage is significantly increased by increasing water infusion frequency under constant water infusion pressure and time rate. Based on these research results, the rule of accurate dynamic damage field distribution around water infusion holes was obtained. It provides, thus, a theoretical basis for both optimizing technological pulse water infusion parameter design and raising water infusion effect.

Downloads

Published

2017-05-22

Issue

Engineering Review, Vol. 37, No. 2

Section

Articles

License

Engineering review uses the Creative Commons Attribution-NonCommercial-NoDerivatives (CC-BY-NC-ND) 4.0 International License, which governs the use, publishing and distribution of articles by authors, publishers and the wider general public.

The authors are allowed to post a digital file of the published article, or the link to the published article (Enginering Review web page) may be made publicly available on websites or repositories, such as the Author’s personal website, preprint servers, university networks or primary employer’s institutional websites, third party institutional or subject-based repositories, and conference websites that feature presentations by the Author(s) based on the published article, under the condition that the article is posted in its unaltered Engineering Review form, exclusively for non-commercial purposes.

The journal Engineering Review’s publishing procedure is performed in accordance with the publishing ethics statements, defined within the Publishing Ethics Resource Kit. The Ethics statement is available in the document Ethics Policies.