|本期目录/Table of Contents|

[1]丁厚成,权萌萌,时训先,等.钻爆法施工隧道炮烟运移规律数值模拟研究[J].中国安全生产科学技术,2020,16(4):82-87.[doi:10.11731/j.issn.1673-193x.2020.04.013]
 DING Houcheng,QUAN Mengmeng,SHI Xunxian,et al.Study on numerical simulation of blasting fume migration laws in tunnel with drilling and blasting construction[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(4):82-87.[doi:10.11731/j.issn.1673-193x.2020.04.013]
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钻爆法施工隧道炮烟运移规律数值模拟研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年4期
页码:
82-87
栏目:
职业安全卫生管理与技术
出版日期:
2020-04-30

文章信息/Info

Title:
Study on numerical simulation of blasting fume migration laws in tunnel with drilling and blasting construction
文章编号:
1673-193X(2020)-04-0082-06
作者:
丁厚成权萌萌时训先徐远迪邓权龙刘凯
(1.安徽工业大学 建筑工程学院,安徽 马鞍山243002;
2.中国安全生产科学研究院,北京 100012)
Author(s):
DING Houcheng QUAN Mengmeng SHI Xunxian XU Yuandi DENG Quanlong LIU Kai
(1.School of Construction Engineering,Anhui University of Technology,Ma’anshan Anhui 243002,China;
2.China Academy of Safety Science & Technology,Beijing 100012,China)
关键词:
钻爆法施工隧道炮烟运移规律数值模拟
Keywords:
drilling and blasting construction tunnel blasting fume migration laws numerical simulation
分类号:
X962
DOI:
10.11731/j.issn.1673-193x.2020.04.013
文献标志码:
A
摘要:
为了提高钻爆法施工隧道炮烟排烟效率,改善隧道施工环境,以平顶山隧道某一段爆破施工过程为原型,基于质量守恒定律、Fick定律及Boussineg假设,运用计算流体力学软件FLUENT建立压入式通风条件下组分运输模型,分析风筒口至掌子面的距离及风筒入口风速对隧道内风流流场及炮烟浓度分布规律的影响。结果表明:风筒口至掌子面40 m,入口风速为20 m/s,通风时长为18.5 min时,隧道内风流分布稳定,且炮烟浓度均降至最高允许浓度值以下。将模拟结果与现场实测的炮烟浓度分布情况进行对比分析,数据基本吻合,验证了模拟的有效性。
Abstract:
In order to improve the extraction efficiency of blasting fume in the tunnel with the drilling and blasting construction and improve the tunnel construction environment,taking the blasting construction process of a certain section in Pingdingshan tunnel as a prototype,based on the law of mass conservation,Fick’s law and Boussineg hypothesis,a component transportation model under the condition of pressurein ventilation was established by using the computational fluid dynamics software FLUENT,and the influence of the distance from the air duct mouth to the tunnel surface and the wind speed at the air duct inlet on the airflow field and the distribution law of fume concentration in the tunnel were analyzed.The results showed that when the distance from the air duct mouth to the tunnel surface was 40 m,the inlet wind speed was 20 m/s,and the ventilation duration was 18.5 min,the distribution of air flow in the tunnel was stable,and all the fume concentration fell below the maximum allowable concentration value.The simulation results were compared with the field measured fume concentration distribution,and the data were basically consistent,which verified the effectiveness of the simulation.

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备注/Memo

备注/Memo:
收稿日期: 2020-02-03
* 基金项目: 安徽高校自然科学研究项目(KJ2019A0052);安徽省自然科学基金项目(1808085ME161);大学生创新创业训练计划项目(201910360040,S201910360236)
作者简介: 丁厚成,博士,副教授,主要研究方向为安全技术及工程方面。
更新日期/Last Update: 2020-05-11