煤炭工程 ›› 2016, Vol. 48 ›› Issue (2): 43-46.doi: 10.11799/ce201602014

• 施工技术 • 上一篇    下一篇

深埋大断面软岩巷道底鼓机理及其控制技术研究

邓博团1,陶雄兵2   

  1. 1. 西安科技大学建筑与土木工程学院
    2. 山东科技大学矿业与安全工程学院
  • 收稿日期:2015-08-11 修回日期:2015-09-26 出版日期:2016-02-10 发布日期:2016-03-07
  • 通讯作者: 陶雄兵 E-mail:380510932@qq.com

Study on the Mechanics and Control Technology of the large section Roadway Floor Heave in Deep Mine

  • Received:2015-08-11 Revised:2015-09-26 Online:2016-02-10 Published:2016-03-07

摘要: 采用理论分析和室内实验方法,对文家坡煤矿运输大巷底鼓的发生机理进行了分析,确定了大巷底鼓类型为遇水膨胀性底鼓。提出了有针对性的底鼓支护方案,并给出了底鼓支护参数,运用FLAC3D数值计算方法对底鼓支护方案的合理性进行了验证。现场实测结果表明,巷道底鼓量为22.4mm,相比治理前明显减小,底板变形得到了有效地控制,能够满足盘区运输大巷变形要求。

关键词: 深埋, 大断面, 软岩巷道, 底鼓机理, 控制技术

Abstract: Depended on the belt conveyer lane in Wen Jiapo coal, the floor heave mechanics of large section soft rock roadway was researched by the method of theoretical analysis and lab experiment. Besides, the type of floor heave was determined as hydro-expansiveness.The floor heave support program was put forward and the supporting parameters were given in the article. With the FLAC numerical simulation, the feasibility of floor heave support program which put forward in the paper was verified. The result of industrial test indicated that the floor heave value was 22.4 mm, which was less than the value before floor heave treatment. The floor deformation was so controlled effectively that it met the deformation require of mine block. More importantly, the research results had important reference value to the similar projects.

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