Volume 44 Issue 2
Oct.  2021
Turn off MathJax
Article Contents
LIU Xinmin. Influence of mining in retained gateway along goaf on the disturbance and destruction depth of floor[J]. COAL GEOLOGY & EXPLORATION, 2016, 44(2): 79-84. DOI: 10.3969/j.issn.1001-1986.2016.02.015
Citation: LIU Xinmin. Influence of mining in retained gateway along goaf on the disturbance and destruction depth of floor[J]. COAL GEOLOGY & EXPLORATION, 2016, 44(2): 79-84. DOI: 10.3969/j.issn.1001-1986.2016.02.015

Influence of mining in retained gateway along goaf on the disturbance and destruction depth of floor

More Information
  • Received Date: April 14, 2015
  • Available Online: October 22, 2021
  • Based on the conditions of working face 3105 in Sangshuping coal mine, by using sonic wave test and numerical simulation, a study for the floor failure law of mining coal in retained gateway along goaf was done. Sonic wave test results indicated that the damage depth of the coal seam floor was about 13.2~14.6 m, and numerical simulation showed that the damage depth was 13.0~14.5 m, the results obtained by both methods were in good agreement. Comparison of the damage depth of the coal seam floor and the normal conditions indicated the technique of retained gateway along goaf will not result in significant influence on the damage depth of seam floor. The results provides the foundation for determination of the law of disturbance and damage of seam floor during mining in working face under pressure by using teh mining technique of retained gateway along goaf in China.
  • Cited by

    Periodical cited type(2)

    1. 王凯,郝少伟,陈瑞杰,王瑞. 五里堠井田煤层气井单相水流阶段合理降幅的确定. 中国矿业. 2024(03): 212-218 .
    2. 胡秋嘉,张聪,贾慧敏,张建国,张文胜,乔茂坡,吴定泉,刘春春,王青川. 沁水盆地南部郑庄区块中北部煤层气直井增产新技术研究与应用. 煤炭学报. 2024(03): 1518-1529 .

    Other cited types(1)

Catalog

    Article Metrics

    Article views (38) PDF downloads (6) Cited by(3)
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return