煤炭工程 ›› 2017, Vol. 49 ›› Issue (3): 36-39.doi: 10.11799/ce201703011

• 施工技术 • 上一篇    下一篇

高应力作用下锚杆-混凝土反拱结构底鼓控制技术研究

郑文翔1,胡耀青2   

  1. 1. 内蒙古科技大学矿业与煤炭学院
    2. 山西省太原市太原理工大学
  • 收稿日期:2016-04-29 修回日期:2016-06-23 出版日期:2017-03-09 发布日期:2017-03-21
  • 通讯作者: 郑文翔 E-mail:shxizwxwxh@126.com

Research of Control Technique of Floor Heave by Bolt-concrete Antiarch Composite Structure in High Geostress

  • Received:2016-04-29 Revised:2016-06-23 Online:2017-03-09 Published:2017-03-21

摘要: 根据常村矿地质资料及S6采区1#上山的底鼓特征,提出了围岩控制与底鼓治理的支护设计方案。运用力学知识对混凝土反拱组合结构和底板围岩的稳定性进行了分析与混凝土结构设计参数的验证,认为凝土反拱组合结构稳定且参数设计合理|通过对设计的支护方案进行理论分析、数值模拟分析和现场工程试验,得知实际底鼓量为135~194mm,远小于原支护近500mm,且底鼓支护结构稳定,未超过极限载荷,从而证实了采用锚杆-混凝土反拱组合结构控制底鼓方案的可行性。

关键词: 高地应力, 锚杆-混凝土反拱组合结构, 底鼓, 支护方案, 围岩控制

Abstract: Based on the changcun mine geological data and characteristic of floor heave of 1#roadway in S6 mining area, suppot scheme in rock and floor heave control is proposed.Mechanics theory is used to analyze the stability of concrete antiarch composite structure and floor surrounding rock, and the design parameters of concrete structure are tested, it shows that the concrete antiarch composite structure is stable and the design parameters of concrete antiarch composite structure are resonable; Through the numerical simulation analysis of the support scheme and situ engineering tests, actual amount of floor heave is 135~194m, far less than 500m that using the original support scheme, and the floor heave support structure is stable, not exceeding the limit load, which proves the feasibility of the scheme of controlling the floor heave by bolt-concrete antiarch structure.

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