煤炭工程 ›› 2023, Vol. 55 ›› Issue (7): 39-44.doi: 10.11799/ce202307007

• 施工技术 • 上一篇    下一篇

大断面硬岩巷道炮掘快速施工技术研究

周庆宏,肖殿才   

  1. 1. 安徽理工大学 机械工程学院, 安徽 淮南 232000
    2. 淮南矿业(集团)有限责任公司 深部煤炭开采与环境保护国家重点实验室, 安徽 淮南 232001

  • 收稿日期:2023-02-02 修回日期:2023-04-23 出版日期:2023-07-20 发布日期:2025-04-07
  • 通讯作者: 周庆宏 E-mail:HNzhouqinghong@126.com

Rapid construction technology of large section and hard rock roadway blasting#br#

  • Received:2023-02-02 Revised:2023-04-23 Online:2023-07-20 Published:2025-04-07

摘要:

为了解决采区系统巷道掘进效率低、准备进度慢的难题, 分别从支护设计、爆破参数、设备配备、排矸效率、施工质量以及组织管理等方面分析了影响掘进效率的原因, 提出了大断面硬岩巷道“差异化支护设计—设备配备与改进—线性聚能爆破—柔性连续排矸系统—施工及劳动组织保障” 的岩巷炮掘快速施工技术, 并在潘三矿西三下部采区轨道大巷进行了工程实践, 形成了“液压钻车打眼—线性聚能爆破—安全高效支护—柔性连续排矸” 的岩巷炮掘快速施工作业线。实践表明: 大断面硬岩条件下的岩巷炮掘快速施工技术能够实现“快速打眼、高效进尺、连续排矸、有效支护” 的安全高效掘进, 进尺效率提高了126%, 月进尺达到86m, 人工工效提高至2.04m/ (人·月), 显著提高了岩巷炮掘的进尺效率。

关键词: 大断面, 硬岩巷道, 炮掘, 快速掘进

Abstract:

In order to solve the problems of low roadway tunneling efficiency and slow mining area preparation, the reasons affecting the excavation efficiency were analyzed from the aspects of support design, blasting parameters,corollary equipment,efficiency of gangue transportation, construction quality and organization management.”Five-in-one” rapid construction technology of rock roadway blasting under complex and multi-factor conditions was put forward,which inclued differential support design,mechanized equipment and improvement,Linear Energy Accumulation Smooth Blasting,flexible continuous gangue discharging system,Construction technology and labor organization guarantee.Engineering practice has been carried out in the track roadway of xi’san lower panel, Rapid construction line of rock tunnel blasting was comprised by “hydraulic drilling-Linear Energy Accumulation Smooth Blasting- Safty and efficient support scheme-flexible continuous gangue discharge". Practice shows that Rapid tunneling under complex and multi-factor conditions was realized by adopting "five-in-one" rapid construction technology of rock roadway blasting,The efficient driving system of fast drilling, efficient tunneling,continuous drainage of gangue and effective support is realized.The tunneling footage was increased by 126%,which is 86 meter per month,the artificial efficiency was increased to 2.04 meters per month and each employee,Footage efficiency of rock roadway blasting was significantly improved.

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