浅析高地温隧道通风及综合降温技术
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- 英文论文题名：Analysis on the Technology of Ventilation and Comprehensive Cooling for the Tunnel of High Geothermal
- 论文作者：孙其清 ; 郑宗溪 ; 喻渝
- 英文论文作者：Sun Qiqing ; Zheng Zongxi ; Yu Yu ; China Railway Eryuan Engineering Group Co.Ltd
- 年：2016
- 作者机构：中铁二院工程集团有限责任公司;
- 论文关键词：高地温 ; 隧道 ; 通风 ; 综合降温
- 英文论文关键词：high geothermal ; hunnel ; ventilation ; comprehensive cooling technology
- 会议召开时间：2016-10-14
- 会议录名称：“川藏铁路建设的挑战与对策”2016学术交流会论文集
- 语种：中文
- 分类号：U453.5
- 学会代码：ZGTD
- 会议名称：“川藏铁路建设的挑战与对策”2016学术交流会
- 会议地点：中国四川成都
- 主办单位：中国铁道学会、中国铁道学会工程分会、中国中铁股份有限公司、中铁二院工程集团有限责任公司
- 学会名称：中国铁道学会
- 页数：6
- 文件大小：344k
- 原文格式：O
- 会议级别：全国
摘要
川藏铁路沿线多处地热异常,形成多座高岩温、高温热水隧道,而通风及综合降温技术在高地温隧道施工中尤为重要和关键,故本文基于牛顿冷却定律,考虑了围岩温度随距开挖面距离变化和开挖面散热等因素,推导了高地温隧道施工通风量计算公式,并结合川藏铁路实际,计算了围岩初始温度80℃时,高地温隧道不同通风时间下的通风量,最后统计分析了国内外高地温隧道的综合降温技术。结果表明:通风时间与通风量为负相关关系,当围岩初始温度为80℃时,为将洞内空气温度降至28℃,仅仅采用通风降温是不可行,需综合其他措施降温。喷雾洒水降温措施应用最为广泛,其次是低温冷水降温、合理的施工组织和人员个体防护。对于高温热水隧道,首先也是最重要的是采取热水处理措施。
Multiple abnormal geothermal distribution in Sichuan Tibet railway,and the formation of a number of high temperature rock and hot water tunnel,the technology of comprehensive ventilation and cooling technology is particularly important in the construction of high temperature tunnel,this paper based on Newton's law of cooling,consider changes on the rock temperature with the distance from the excavation surface and cooling of the excavation and so on,derive the calculating formula of ventilation in the construction of the tunnel of high geothermal,combine with the actual situation of the Sichuan Tibet Railway,calculate the ventilation quantity under different ventilation time in the tunnel of high geothermal,when the initial temperature of the surrounding rock is 80℃,finally,count and analyze the technology of comprehensive cooling applied to the tunnel of high geothermal at home and abroad.The results showed that:Ventilation time and ventilation quantity is negative correlation,When the initial temperature is 80 ℃ for surrounding rock,in order to drop the temperature of tunnel to 28 ℃,only adopting the ventilation is not feasible,so it is necessary to take other measures to cool.First spray sprinkler cooling measures are widely used,followed by cooling with low temperature cold water,the reasonable construction organization and personal protection.For the tunnel of high temperature hot water,the first and most important is to take measures to deal with hot water.
Multiple abnormal geothermal distribution in Sichuan Tibet railway,and the formation of a number of high temperature rock and hot water tunnel,the technology of comprehensive ventilation and cooling technology is particularly important in the construction of high temperature tunnel,this paper based on Newton's law of cooling,consider changes on the rock temperature with the distance from the excavation surface and cooling of the excavation and so on,derive the calculating formula of ventilation in the construction of the tunnel of high geothermal,combine with the actual situation of the Sichuan Tibet Railway,calculate the ventilation quantity under different ventilation time in the tunnel of high geothermal,when the initial temperature of the surrounding rock is 80℃,finally,count and analyze the technology of comprehensive cooling applied to the tunnel of high geothermal at home and abroad.The results showed that:Ventilation time and ventilation quantity is negative correlation,When the initial temperature is 80 ℃ for surrounding rock,in order to drop the temperature of tunnel to 28 ℃,only adopting the ventilation is not feasible,so it is necessary to take other measures to cool.First spray sprinkler cooling measures are widely used,followed by cooling with low temperature cold water,the reasonable construction organization and personal protection.For the tunnel of high temperature hot water,the first and most important is to take measures to deal with hot water.
引文
[1]中华人民共和国行业标准.TZ 204—2008铁路隧道工程施工技术指南[S].北京:中国铁道出版社,2008.The People's Republic of China industry standard.TZ 204—2008,Technical Guide for Construction of Railway Tunnel Engineering[J].Beijing:China Railway Publishing House,2008.
[2]邵珠山,乔汝佳,王新宇.高地温隧道温度与热应力场的弹性理论解[J].岩土力学,2013,34(SI):1-8.Shao Zhushan,Qiao Rujia,Wang Xinyu.Elasticity solution for temperature and stress fields of tunnels with high geothermal temperature[J].Rock and Soil Mechanics,2013,34(S1):1-8.
[3]刘乃飞,李宁,余春海,等.布仑口水电站高温引水发电隧洞受力特性研究[J].水利水运工程学报,2014(4):14-21Liu Naifei,Li Ning,Yu Chunhai,et al.Analysis of mechanical characteristics for high-temperature diversion tunnel of Bulunkou hydropower station[J].Hydro-science and Engineering,2014(4):14-21.
[4]白国权,仇文革,张俊儒.高地温隧道隔热技术研究[J].铁道标准设计,2013(2):77-80.Bai Guoquan,QiuWenge,Zhang Junru.Study on the trermal insulation technology of tunnel in high geo-temperature region[J].Railway Standard Design,2013(2):77-80.
[5]俞佐平.传热学[M].2版.北京:高等教育出版社,1985.Yu Zuping.Heat trasfer[M].2nd Edition.Beijing:Higher Education Press,1985.
[6]中华人民共和国行业标准.TB 10003—2005铁路隧道设计规范[S].北京:中国铁道出版社,2005.The People's Republic of China industry standard.TB 10003—2005 Code for design on tunnel of railway[S].Beijing:China Railway Publishing House,2005.
[7]谷柏森.隧道高地温应对措施及通风设计——高黎贡山铁路特长隧道可行性研究[J].现代隧道技术,2007,02:66-71.Gu Baisen.Countermeasures against high temperatures in a tunnel and the corresponding ventilation design—Feasibility study for the super-long Gaoligonshan tunnel[J].Modern Tunnelling Technology,2007(2):66-71.
[8]尹士清.向莆铁路长大隧道群地温预测和测试分析[J].铁道工程学报,2015,04:91-95.Yin Shiqing.Analysis and Prediction of Geothermal Test for Long Tunnel Group on Xiangtang-Putian Railway[J].Journal of Railway Engineering Society,2015(4):91-95.
[2]邵珠山,乔汝佳,王新宇.高地温隧道温度与热应力场的弹性理论解[J].岩土力学,2013,34(SI):1-8.Shao Zhushan,Qiao Rujia,Wang Xinyu.Elasticity solution for temperature and stress fields of tunnels with high geothermal temperature[J].Rock and Soil Mechanics,2013,34(S1):1-8.
[3]刘乃飞,李宁,余春海,等.布仑口水电站高温引水发电隧洞受力特性研究[J].水利水运工程学报,2014(4):14-21Liu Naifei,Li Ning,Yu Chunhai,et al.Analysis of mechanical characteristics for high-temperature diversion tunnel of Bulunkou hydropower station[J].Hydro-science and Engineering,2014(4):14-21.
[4]白国权,仇文革,张俊儒.高地温隧道隔热技术研究[J].铁道标准设计,2013(2):77-80.Bai Guoquan,QiuWenge,Zhang Junru.Study on the trermal insulation technology of tunnel in high geo-temperature region[J].Railway Standard Design,2013(2):77-80.
[5]俞佐平.传热学[M].2版.北京:高等教育出版社,1985.Yu Zuping.Heat trasfer[M].2nd Edition.Beijing:Higher Education Press,1985.
[6]中华人民共和国行业标准.TB 10003—2005铁路隧道设计规范[S].北京:中国铁道出版社,2005.The People's Republic of China industry standard.TB 10003—2005 Code for design on tunnel of railway[S].Beijing:China Railway Publishing House,2005.
[7]谷柏森.隧道高地温应对措施及通风设计——高黎贡山铁路特长隧道可行性研究[J].现代隧道技术,2007,02:66-71.Gu Baisen.Countermeasures against high temperatures in a tunnel and the corresponding ventilation design—Feasibility study for the super-long Gaoligonshan tunnel[J].Modern Tunnelling Technology,2007(2):66-71.
[8]尹士清.向莆铁路长大隧道群地温预测和测试分析[J].铁道工程学报,2015,04:91-95.Yin Shiqing.Analysis and Prediction of Geothermal Test for Long Tunnel Group on Xiangtang-Putian Railway[J].Journal of Railway Engineering Society,2015(4):91-95.