寒区公路隧道消防管道放水保温模式优化研究

doi:10.3973/j.issn.1672-741X.2016.01.007

隧道建设（中英文） ›› 2016, Vol. 36 ›› Issue (1): 45-51.DOI: 10.3973/j.issn.1672-741X.2016.01.007

寒区公路隧道消防管道放水保温模式优化研究

张玉伟¹, 李又云¹, 赖金星^1,2

（1. 长安大学公路学院，陕西西安 710064； 2. 南洋理工大学土木与环境工程学院防护技术研究中心, 新加坡 639798）

收稿日期:2015-07-24 修回日期:2015-08-26 出版日期:2016-01-20 发布日期:2016-02-01
作者简介:张玉伟（1989—），男，山东淄博人，长安大学公路学院在读博士，主要研究方向为岩土与隧道工程。E-mail: 1032659676@qq.com。
基金资助:
四川省交通厅科技项目（2012C5-3）；西部交通建设科技项目（2011318797600）

Optimization of Thermal Insulation Mode with Water Releasing for Fire Fighting Watersupply Pipeline of Highway Tunnels in Cold Regions

ZHANG Yuwei¹, LI Youyun¹, LAI Jinxing^1,2

(1. School of Highway, Chang’an University, Xi’an 710064, Shaanxi, China; 2. Protective Technology Research Center (PTRC), School of Civil and Environmental Engineering, Nanyang Polytechnic, Singapore 639798, Singapore)

Received:2015-07-24 Revised:2015-08-26 Online:2016-01-20 Published:2016-02-01

摘要/Abstract

摘要：

寒区公路隧道消防系统保温关系着隧道运营消防安全。为了优化寒区隧道消防管道放水保温方案，建立了管道保温计算模型，根据传热学原理，采用多工况对比优化分析的方法，分别计算了消防主管和消防支管的放水时间和放水量，并确定了合适的保温层厚度；运用ANSYS软件对消防支管在无保温层和确定保温层厚度下进行了管道温度模拟分析。结果表明: 保温层越厚保温效果越好，但厚度达到一定值时，保温效果增长不明显，其厚度合适取值为0.06～0.08 m；环境温度和保温层厚度相同时，消防系统不冻，消防主管控制着放水量，消防支管控制着放水时间，应遵循“消防支管勤放水，消防主管控制放水量”的原则；数值模拟结果验证了消防支管在0.08 m保温层时，间隔8 h放水能够满足管道不冻的要求。结果可为寒区隧道消防管道保温设计提供依据。

关键词: 寒区公路隧道, 消防管道, 放水保温, 数值模拟

Abstract:

The thermal insulation of fire fighting system is very important for safe operation of highway tunnel in cold regions. In this paper, the calculation model of fire fighting watersupply pipeline insulation is established, and the volume of water released of trunk fire fighting watersupply pipeline and water releasing time of branch fire fighting watersupply pipeline are calculated by means of analysis based on heat transfer theory. Then the thermal insulation layer thickness is determined, and the temperatures of branch fire fighting watersupply pipeline without thermal insulation layer and that with a specific thickness of thermal insulation layer are numerically simulated by means of ANSYS software. The results show that: 1) The thermal insulating effect improves as the thickness of thermal insulation layer increases. The rational thermal insulation thickness is 0.06 m to 0.08 m. 2) The volume of water released is dominated by the trunk fire fighting watersupply pipeline and the water releasing time is governed by the branch fire fighting watersupply pipeline under a specific ambient temperature and a specific thermal insulation layer thickness. The principle of “water released frequently by branch fire fighting watersupply pipeline and volume of water released controlled by trunk fire fighting watersupply pipeline” has to be followed. 3) The numerical results show that the requirement of fire fighting watersupply pipeline can be met when the thermal insulation layer thickness reaches 0.08 m and interval time among water releasing reaches 8 h. The paper can provide reference for thermal insulation design of fire fighting watersupply pipeline of tunnels in cold regions.

Key words: highway tunnel in cold region, fire fighting watersupply pipeline, thermal insulationwith with water releasing, numerical simulation

中图分类号:

U 452

张玉伟, 李又云, 赖金星. 寒区公路隧道消防管道放水保温模式优化研究[J]. 隧道建设, 2016, 36(1): 45-51.

ZHANG Yuwei, LI Youyun, LAI Jinxing. Optimization of Thermal Insulation Mode with Water Releasing for Fire Fighting Watersupply Pipeline of Highway Tunnels in Cold Regions[J]. Tunnel Construction, 2016, 36(1): 45-51.

[1]	邢修举. 岩溶隧道瞬变电磁三维超前探测技术研究[J]. 隧道建设, 2019, 39(2): 287-293.
[2]	刘方宇，丁文其，巩一凡，魏于量. 沉井式预制拼装结构壳-接头模型的三维数值模拟[J]. 隧道建设, 2018, 38(S2): 190-201.
[3]	黄磊，范建国，唐协，方勇. 低瓦斯公路隧道横通道附近流场分析及优化[J]. 隧道建设, 2018, 38(S1): 97-103.
[4]	杨春山，魏立新，陈凌伟，汪传智. 高水位环境下沉管隧道模袋砂围堰破坏模式研究[J]. 隧道建设, 2018, 38(9): 1505-1512.
[5]	于丽，蔡闽金. 郑万高铁隧道大型机械化配套全断面法施工围岩-支护结构相互作用力学特性研究[J]. 隧道建设, 2018, 38(8): 1316-1323.
[6]	金生吉，陈华，舒哲，何丽娟. 明挖公路隧道基坑钢支撑轴力监测与数值模拟分析[J]. 隧道建设, 2018, 38(5): 740-746.
[7]	陈家康，刘陕南，肖晓春，吴俊，李磊，汪磊. 复合地层中超大直径泥水盾构施工开挖面泥水压力确定方法研究[J]. 隧道建设, 2018, 38(4): 619-626.
[8]	张铨婧，莫海鸿，黄臣瑞，陈俊生. 预制综合管廊橡胶密封垫受压性能研究及断面设计[J]. 隧道建设, 2018, 38(3): 399-405.
[9]	刘力英，黄雪阳. 硬质地基上干坞坞口模袋砂围堰变形空间效应及其方案优选[J]. 隧道建设, 2017, 37(S1): 20-25.
[10]	袁浩庭，陈超，李琼，王陆瑶，李亚茹. 城市地下道路分（合）流匝道通风阻力特性[J]. 隧道建设, 2017, 37(11): 1409-1416.
[11]	何志敏，李九福，刘惠康，张玉成，余小强. 沉管隧道管段浮运中的水流阻力性能及其在回旋区转体的流速流场模拟分析[J]. 隧道建设, 2016, 36(9): 1023-1029.
[12]	章勇，吕振纲，杨锐锐，禹海涛. 红谷沉管隧道GINA止水带数值模拟分析[J]. 隧道建设, 2016, 36(9): 1045-1051.
[13]	陈向红，陶连金，刘春晓，安林轩，安军海. 放坡疏浚对海陆交接段隧道稳定性的影响研究[J]. 隧道建设, 2016, 36(7): 806-811.
[14]	刘军，荀桂富，王芳，金鑫. 盾构始发与接收时顶力的数值模拟研究——以北京地铁15号线某盾构直接切削玻璃纤维筋桩工程为例[J]. 隧道建设, 2016, 36(3): 264-269.
[15]	许德根，杨天春，程辉，张启. 隧道衬砌探地雷达检测数值解析及应用[J]. 隧道建设, 2016, 36(11): 1343-1347.

寒区公路隧道消防管道放水保温模式优化研究

Optimization of Thermal Insulation Mode with Water Releasing for Fire Fighting Watersupply Pipeline of Highway Tunnels in Cold Regions

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价