Numerical Simulation of Ventilation Resistance Coefficient of Utility Tunnel Cable Cabin with Rectangular Crosssection

doi:10.3973/j.issn.2096-4498.2019.06.008

Tunnel Construction ›› 2019, Vol. 39 ›› Issue (6): 953-959.DOI: 10.3973/j.issn.2096-4498.2019.06.008

Previous Articles Next Articles

Numerical Simulation of Ventilation Resistance Coefficient of Utility Tunnel Cable Cabin with Rectangular Crosssection

CHEN Xiaofeng^{1, 2}, GUO Chun^{1, 2, *}, ZHENG Xin^{1, 2}, ZHANG Zhenhua^{1, 2}

(1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)

Received:2019-01-18 Revised:2019-05-27 Online:2019-06-20 Published:2019-07-02

Abstract

Abstract:

In this paper, based on the relevant studies about the ventilation system design of utility tunnel and ventilation resistance of transportation tunnel, the calculation formula for the unit length ventilation resistance coefficient of the utility tunnel cable cabin is obtained. And then a 3D numerical model of the utility tunnel cable cabin is established, and the influence of the brackets, cables and thermal effect on the ventilation of the utility tunnel cable cabin with ventilation obstruction ratio of 15% is simulated by adopting the standard double equation model and software ANSYS FLUENT. The analysis shows that: (1) The brackets and cables have some significant influence on ventilation resistance of utility tunnel. (2) With the increase of the ventilation speed, the ventilation resistance increases while the resistance coefficient decreases to be stable. (3) The thermal effect of inlet air temperature, cable heating and cabin temperature have some effect on the ventilation resistance coefficient, and with the increase of inlet air temperature, the ventilation resistance and resistance coefficient decrease.

Key words: utility tunnel, rectangular crosssection, cable cabin, ventilation resistance coefficient, obstruction ratio, numerical simulation

CLC Number:

U 45

CHEN Xiaofeng, GUO Chun, ZHENG Xin, ZHANG Zhenhua. Numerical Simulation of Ventilation Resistance Coefficient of Utility Tunnel Cable Cabin with Rectangular Crosssection[J]. Tunnel Construction, 2019, 39(6): 953-959.

[1]	HUANG Zhangjun, YANG Yanling, TANG Dongsang, ZHANG Weizhong. Numerical Simulation and Monitoring of Reaction Wall of Launching Shaft for Large Rectangular Pipe Jacking [J]. Tunnel Construction, 2020, 40(7): 972-980.
[2]	ZHANG Yazhou. Numerical Simulation on Waterproof Capacity of Shield Tunnel Joints Considering Working State of Sealing Gasket Surface [J]. Tunnel Construction, 2020, 40(6): 813-820.
[3]	ZHANG Zhenhua, BAI Yonghou, GUO Chun, CHENG Jianghao. Noise Propagation Characteristics of Tunnel Construction by Drilling and Blasting Method [J]. Tunnel Construction, 2020, 40(6): 821-826.
[4]	油新华, 曲连峰, 罗朝洪. 我国城市综合管廊的建设经验、问题与建议 [J]. Tunnel Construction, 2020, 40(5): 621-628.
[5]	LUO Wenjing, ZOU Chenglu. Key Technologies and Numerical Analysis of Metro Station by Cut-and-cover and Mining Method at Semi-diagenetic Stratum in Nanning [J]. Tunnel Construction, 2020, 40(5): 727-734.
[6]	DENG Yulian, WANG Junling, ZHANG Zhixian, WEI Sheng. Outlet Node Selection of Utility Tunnel Based on DHGF Algorithm [J]. Tunnel Construction, 2020, 40(4): 512-519.
[7]	JIN Yuelang, DING Wenqi, XIAO Mingqing, SUN Wenhao, WU Weifeng, YE Meixi, TU Xinbin. Experimental Research on Sealing Behavior of Segmental Joints of Sutong GIL Utility Tunnel under Ultra-high Water Pressure [J]. Tunnel Construction, 2020, 40(4): 538-544.
[8]	QIN Jiajia. Study on Parameters Control of Shield Tunneling in Composite Strata in Hefei Area [J]. Tunnel Construction, 2020, 40(3): 435-443.
[9]	WEI Haimin, HE Guangxue. Literature Characteristics and Research Hotspots of International Urban Underground Utility Tunnel Research： Visualized Quantitative Research Based on CiteSpace [J]. Tunnel Construction, 2020, 40(2): 179-188.
[10]	JIN wei, TIAN Yuan, YAN Zihai, WANG Mingnian. Study on Safety of Underground Combined Structures under Different Fire Scales [J]. Tunnel Construction, 2020, 40(2): 215-222.
[11]	ZHANG Wenjun, DING Chao, ZHANG Gaole, WANG Yi, SHANGGUAN Dandan, JIANG Kun. Type Selection and Design of Composite Sealing Gasket for Segment Joints of Shield Tunnel [J]. Tunnel Construction, 2020, 40(2): 246-255.
[12]	XIN Zhenggang. Experimental Study on AttitudeInterlock Control Technology of Pipecurtain Group with Inner Interlock Joints [J]. Tunnel Construction, 2020, 40(1): 43-49.
[13]	ZHANG Zhipei， HE Yangyang， LIANG Jiangang， REN Jianjun， ZHAO Jun， FU Gangfei. Mechanical Property Analysis of Constructing Tunnel Underlying Inclined Coal Minedout Area [J]. Tunnel Construction, 2019, 39(S2): 8-16.
[14]	WANG Jianbo,WANG Zhengquan,ZHANG Na,HUANG Wenjing,QIN Na. Risk Sharing of Urban Underground Utility Tunnel PPP Project Based on Grey Correlation and D-S Evidence Theory [J]. Tunnel Construction, 2019, 39(S2): 28-35.
[15]	SONG Yuan, HUANG Mingli. Orthogonal Numerical Simulation Experiment on Structural Parameter Sensitivity of New Type of Primary Support of Metro Tunnel [J]. Tunnel Construction, 2019, 39(S2): 163-168.

Numerical Simulation of Ventilation Resistance Coefficient of Utility Tunnel Cable Cabin with Rectangular Crosssection

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments