[1]魏存厚,聂文,刘强,等.协同通风影响全断面隧道掘进机工作面岩尘分布规律研究[J].中国安全生产科学技术,2020,16(5):76-81.[doi:10.11731/j.issn.1673-193x.2020.05.012]
WEI Cunhou,NIE Wen,LIU Qiang,et al.Study on influence of collaborative ventilation on distribution laws of rock dust at working face of full face tunnel boring machine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(5):76-81.[doi:10.11731/j.issn.1673-193x.2020.05.012]
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协同通风影响全断面隧道掘进机工作面岩尘分布规律研究
WEI Cunhou,NIE Wen,LIU Qiang,et al.Study on influence of collaborative ventilation on distribution laws of rock dust at working face of full face tunnel boring machine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(5):76-81.[doi:10.11731/j.issn.1673-193x.2020.05.012]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 16
- 期数:
- 2020年5期
- 页码:
- 76-81
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2020-05-30
文章信息/Info
- Title:
- Study on influence of collaborative ventilation on distribution laws of rock dust at working face of full face tunnel boring machine
- 文章编号:
- 1673-193X(2020)-05-0076-06
- 关键词:
- 协同通风; 全断面隧道掘进机工作面; 岩尘; 运移规律
- Keywords:
- collaborative ventilation; working face of full face tunnel boring machine; rock dust; migration rule
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 针对全断面掘进机施工过程中，产生大量岩尘影响施工人员工作环境的问题，采用理论分析、数值模拟与现场测定相结合的方法，以青岛地铁2号线全断面隧道掘进机工作面为对象，对协同通风影响全断面隧道掘进机工作面风流运移与岩尘污染分布规律进行研究。结果表明：在复合式通风模式和一定条件下，在隧道中段会形成由主通风与回风主导的耦合风场；当协同通风量(Qcv)从6 m3/s增大至12 m3/s时，产生的岩尘可控制在距掌子面77.2 m的范围内；当Qcv=8 m3/s时，岩尘最小扩散距离为44.7 m，工作区周围岩尘浓度约为30.1 mg/m3。
- Abstract:
- In view of the problem that a large amount of rock dust produced in the construction process of full face tunnel boring machine affects the working environment of construction personnel,Taking the working face of full face tunnel boring machine in Line 2 of Qingdao Metro as the object,the combined methods of theoretical analysis,numerical simulation and field measurement were used to study the influence of collaborative ventilation on the air flow migration and the distribution laws of rock dust pollution at the working face of full face tunnel boring machine.The results showed that in the compound ventilation mode,the coupling wind field dominated by the main ventilation and return air would form in the middle section of tunnel under certain conditions. When the collaborative ventilation volume (QCV) increased from 6 m3/s to 12 m3/s,the generated rock dust could be controlled within the range of 77.2 m from the tunnel face.When QCV=8 m3/s,the minimum diffusion distance of rock dust was 44.7 m,and the concentration of rock dust around the working area was about 30.1 mg/m3.
参考文献/References:
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相似文献/References:
备注/Memo
- 备注/Memo:
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收稿日期： 2019-12-23
* 基金项目： 国家自然科学基金项目(51874191，51404147);山东省重点研究开发计划项目 (2017GSF2011)
作者简介： 魏存厚，硕士研究生，主要研究方向为灾害预防与控制。
通信作者： 聂文，博士，副教授，主要研究方向为矿井粉尘污染防治。
