黑龙江科技大学学报2026，Vol.36Issue(3)：361-369,9.DOI:10.3969/j.issn.2095-7262.2026.03.005
厚煤层遗煤复采巷道合理位置的确定
Determination of reasonable position of coal residue re-mining roadways in thick coal seams
张雪峰 1鲁婷 2李豫波 1李子波 1张智豪3
作者信息
- 1. 黑龙江科技大学 安全工程学院,哈尔滨 150022
- 2. 黑龙江科技大学 安全工程学院,哈尔滨 150022||黑龙江省能源地质测试研究院,哈尔滨 150046
- 3. 黑龙江科技大学 矿业工程学院,哈尔滨 150022
- 折叠
摘要
Abstract
This paper aims to determine the reasonable position of the remaining roadway in old area of the thick coal seam.By taking 11#coal seam of the old area in a mine in Hegang,Heilongjiang prov-ince as the research background,the study includes analyzing mechanical state of the remaining coal by triaxial creep test,establishing the constitutive model of the coal seam and remaining coal pillar in the old area,using numerical simulation method to explore the stress distribution and failure characteristics of the remaining coal pillar,and analyze the displacement field of different remining roadway positions,so as to determine the reasonable position of the remaining roadway,and then apply it to engineering.The results show that under the confining pressure of 2 MPa,the low hardness coal sample has the whole process of"attenuation creep-stable creep-accelerated creep".Under the confining pressure of 4 MPa and 6 MPa,the high hardness coal samples have the plastic failure directly,without accelerated creep process.The creep of the remaining coal pillar is 10 a,with the plastic failure depth up to the maximum value of 9 m.The re-mining roadway is 15 m away from the remaining coal pillar,and the deformation of the surround-ing rock of the roadway is reduced by 59.52%,determining the more reasonable position.The field engi-neering application shows that the deformation of surrounding rock of re-mining roadway is smaller,meet-ing the needs of re-mining production.关键词
遗留煤炭/遗留煤柱/复采巷道/煤体蠕变Key words
leftover coal/remaining coal pillars/re-mining roadway/creep of coal分类
矿业与冶金引用本文复制引用
张雪峰,鲁婷,李豫波,李子波,张智豪..厚煤层遗煤复采巷道合理位置的确定[J].黑龙江科技大学学报,2026,36(3):361-369,9.
