盾构综合管廊人员疏散可靠度计算

doi:10.3976/j.issn.1002-4026.2022.04.018

Abstract

Abstract:

In view of the limited research on current comprehensive utility tunnel shield safety operations and inconsideration of the uncertainty factors in the shield-integrated pipe gallery operations as well as their specifications, this study aims at safe human evacuation from the gallery during fire hazard for the operations research personnel using the Guangzhou Tianhe smart city comprehensive utility tunnel shield segment as the research object to calculate the probability of safe human evacuation. A 1:1 fire modeling is performed using PyroSim software to determine the available safe evacuation time 。Referring to the probability distribution of personnel's escape behavior after a tunnel disaster, the probability model of escape behavior is optimized while considering the characteristics of the operation and maintenance period of the pipe gallery, and the comparative working conditions are set using the Monte Carlo method. The random sampling simulation of the necessary evacuation time was conducted using Matlab programming, and the safety evacuation reliability was calculated. The results show that in a fire prevention zone, the evacuation reliability is 0.889 for the ordinary personnel and 0.99 for the maintenance personnel, i.e., close to 1. Daily evacuation drills, safety specification manuals, and other control measures can considerably improve the safety of the personnel. These results are expected to provide a reference for the compilation of operation and maintenance specifications of daily support structures for integrated pipe galleries.

Key words: shield tunnel, operation and maintenance research, fire simulation, personnel evacuation, evacuation reliability, reliability calculation, Monte Carlo method, probability simulation

CLC Number:

TU990.3

TAN Yi-wei, LIU Shu-zhuo, CHEN Jun-sheng. Calculation of human evacuation reliability for shield-integrated pipe gallery[J].Shandong Science, 2022, 35(4): 144-154.

Figures/Tables 16

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Table 1

Table 2

Table 3

Table 4

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Table 5

References 18

[1]	强健. 暗挖综合管廊的发展和研究方向[J]. 隧道建设(中英文), 2021, 41(5):764-771. DOI: 10.3973/j.issn.2096-4498.2021.05.009. doi: 10.3973/j.issn.2096-4498.2021.05.009
[2]	中华人民共和国住房和城乡建设部.城市综合管廊工程技术规范:GB 50838—2015[S]. 北京: 中国计划出版社, 2015.
[3]	翟越, 徐福顺, 宗燕燕, 等. 不同火源位置对地下管廊施工人员疏散影响研究[J]. 消防科学与技术, 2020, 39(9):1222-1226.DOI: 10.3969/j.issn.1009-0029.2020.09.011. doi: 10.3969/j.issn.1009-0029.2020.09.011
[4]	徐志胜, 王蓓蕾, 孔杰, 等. 城市综合管廊火灾特性和人员疏散安全性研究[J]. 消防科学与技术, 2020, 39(6):786-789.
[5]	SEIKE M, KAWABATA N, HASEGAWA M. Experiments of evacuation speed in smoke-filled tunnel[J]. Tunnelling and Underground Space Technology, 2016, 53:61-67. DOI: 10.1016/j.tust.2016.01.003. doi: 10.1016/j.tust.2016.01.003
[6]	谭妍. 城市轨道交通隧道火灾安全疏散研究[D]. 湘潭: 湖南科技大学, 2016.
[7]	王琛琛. 城市轨道交通长大隧道区间火灾安全疏散问题研究[D]. 北京: 北京交通大学, 2017.
[8]	奚学东, 胡江文, 姜学鹏. 公路隧道火灾人员逃生概率计算[J]. 消防科学与技术, 2015, 34(8):1017-1020. DOI: 10.3969/j.issn.1009-0029.2015.08.010. doi: 10.3969/j.issn.1009-0029.2015.08.010
[9]	郭雄. 城市综合管廊电缆舱室火灾特性及人员疏散研究[D]. 成都: 西南交通大学, 2019.
[10]	LEMAIRE T, KENYON Y. Large scale fire tests in the second benelux tunnel[J]. Fire Technology, 2006, 42(4) :329-350. DOI: 10.1007/s10694-006-8434-4. doi: 10.1007/s10694-006-8434-4
[11]	CARVEL R O, BEARD A N, JOWITT P W, et al. Variation of heat release rate with forced longitudinal ventilation for vehicle fires in tunnels[J]. Fire Safety Journal, 2001, 36(6) :569-596. DOI: 10.1016/S0379-7112(01)00010-8. doi: 10.1016/S0379-7112(01)00010-8
[12]	宗燕燕. 地下综合管廊施工中的火灾与疏散模拟研究[D]. 西安: 长安大学, 2019.
[13]	尚琳, 刘远, 何发龙, 等. 考虑人员安全疏散的综合管廊防火分区设计长度研究[J]. 中国给水排水, 2020, 36(24):72-78. DOI: 10.19853/j.zgjsps.1000-4602.2020.24.013. doi: 10.19853/j.zgjsps.1000-4602.2020.24.013
[14]	吕勇. 公路隧道火灾人员逃生不确定性研究[D]. 西安: 长安大学, 2013.
[15]	沈蒲生. 混凝土结构设计[M]. 4版, 北京: 高等教育出版社, 2007.
[16]	姜学鹏, 张帆, 陈欣格. 地铁隧道火灾人员疏散可靠度研究[J]. 消防科学与技术, 2020, 39(1):9-13. DOI: 10.3969/j.issn.1009-0029.2020.01.003. doi: 10.3969/j.issn.1009-0029.2020.01.003
[17]	张宇金. 消防通道火灾烟气危害分析[J]. 消防界(电子版), 2018, 4(23):61-62. DOI: 10.16859/j.cnki.cn12-9204/tu.2018.23.019. doi: 10.16859/j.cnki.cn12-9204/tu.2018.23.019
[18]	丁宏军. 电缆隧道火灾分析建模与线型感温火灾探测器研究[D]. 武汉: 武汉理工大学, 2013.

组别	疏散行为
1	人员在火灾报警前察觉火灾发生,察觉火灾时间服从Normal分布;在察觉火灾迹象后直接逃离。
2	人员在火灾报警前察觉火灾发生,察觉火灾时间服从Normal分布;在察觉火灾后确认火灾情况,人员确认火情的时间服从Normal分布,确认后逃离。
3	人员在火灾报警前察觉火灾发生,察觉火灾时间服从Gumbel分布;在察觉火灾后直接逃离。
4	人员在火灾报警前察觉火灾发生,察觉火灾时间服从Gumbel分布;在察觉火灾后确认火灾情况,人员确认火情的时间服从Normal分布,确认后逃离。
5	人员在火灾报警后察觉火灾发生,察觉火灾时间服从Gev分布;在察觉火灾后直接逃离。
6	人员在火灾报警后察觉火灾发生,察觉火灾时间服从Gev分布;在察觉火灾后确认火灾情况,人员确认火情的时间服从Gev分布,确认后逃离。

	报警前人员疏散概率分布				报警后人员疏散概率分布
	1组	2组	3组	4组	5组	6组
t_feel	Normal (41.6,17.1)	Normal (41.6,17.1)	Gumbel (28.8,155.0)	Gumbel (28.8,155.0)	Gev (-0.22,19.91,33.08)	Gev (-0.22,19.91,33.08)
t_sure	直接逃离	Normal (151,81)	直接逃离	Normal (151,81)	直接逃离	Gev (-0.44,6.13,8.42)
v_move	Gumbel (0.443 1,1.118 5)	Gumbel (0.443 1,1.118 5)	Gumbel (0.443 1,1.118 5)	Gumbel (0.443 1,1.118 5)	Gumbel (0.443 1,1.118 5)	Gumbel (0.443 1,1.118 5)

工况	察觉时间t_feel	确认时间t_sure	逃生时间t_move
1	考虑	考虑	考虑
2、3、4	考虑	忽略	考虑

工况	T_feel(1、2)	T_feel(3、4)	T_feel(5、6)
2	40	150	40
3	25	100	25
4	10	50	10

	工况1	工况2	工况3	工况4
疏散可靠度	0.889 4	0.988 3	0.994 2	0.995 3
疏散失败概率	11.06%	1.17%	0.58%	0.47%

Calculation of human evacuation reliability for shield-integrated pipe gallery

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 16

References 18

Related Articles 0

Metrics

Comments

Recommended 0