斑竹林隧道射流通风反算与研究  

Backcalculation and Research on Jet Flow Ventilation in Banzhulin Tunnel

作　　者：蒋志超 贺兆鹏 Jiang Zhichao;He Zhaopeng(SCEGC No.15 Constuction Engineering Co.,Ltd.,Weinan 715400,China)

机构地区：[1]陕西建工集团第十五建设有限公司,渭南市715400

出　　处：《北方交通》2023年第6期62-66,共5页Northern Communications

基　　金：中铁十七局重点科研项目-西南地区穿越煤层高瓦斯岩溶强烈发育地区隧道综合施工技术项目(2017-32)。

摘　　要：以Ⅰ级高风险隧道高瓦斯页岩气斑竹林隧道通风为背景,工程隧道多次穿越多层具有开采价值的煤线、下伏岩溶暗河,存在大量矿物质溶蚀裂隙存储的页岩气,呈透镜体状无规律分布赋存。采用现场应用对比、数据收集、趋势分析和ANSYS ICEM分析等手段,通过监控系统提供的数据进行分析与再分析,将现场实时检测的瓦斯浓度监测数据与通风风速监测数据变化趋势作为措施应用效果的分析指标,确保隧道施工通风监控数据处于合理的范畴。Takingthe ventilation of Banzhulin tunnel,a Class I high-risk tunnel with high shale gas,as the background,the engineering tunnel has repeatedly passed through multiple coal lines with mining value,underlying karst underground rivers,and a large amount of mineral solution fissure storage shale gas,which is distributed irregularly in lenticular form.The data provided by the monitoring system is analyzed and reanalyzed by using methods such as on-site application comparison,data collection and trend analysis as well as ANSYS ICEM analysis.The variation trends in gas concentration monitoring data and ventilation wind speed monitoring data detected in real-time on site are used as analysis indicators for the application effects of the measures,so as to ensure that the tunnel construction ventilation monitoring data is within a reasonable range.

关 键 词：高瓦斯隧道 页岩气 通风系统 安全距离 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]