考虑蠕变效应的巷道塑性区范围

Plastic zone range of a roadway considering the creep effect.

作者信息

Chen Haidong, Chen Xiangjun, Wang Zhaofeng, Li Zhiqiang, An Fenghua

机构信息

School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China.

Henan Key Laboratory of Coal Green Conversion, Henan Polytechnic University, Jiaozuo, 454000, Henan, China.

出版信息

Sci Rep. 2020 Nov 23;10(1):20341. doi: 10.1038/s41598-020-77384-5.

DOI:10.1038/s41598-020-77384-5

PMID:33230145

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7683727/

Abstract

The plastic zone range is an important parameter in the analysis of damage characteristics and the degree of damage to the rock surrounding a roadway. Based on the establishment of a plastic zone calculation model considering the creep effect, this paper obtains the characteristics of the change in the plastic zone damage range with time by solving the model. Additionally, the validity of the model is verified by field experiments. The research results can provide guidance for gas pressure measurement and gas drainage in coal mines.

摘要

塑性区范围是分析巷道围岩损伤特征及损伤程度的一个重要参数。基于建立考虑蠕变效应的塑性区计算模型，本文通过求解该模型得到了塑性区损伤范围随时间的变化特征。此外，通过现场试验验证了该模型的有效性。研究结果可为煤矿瓦斯压力测定及瓦斯抽采提供指导。