[1]罗禄森,王田天,杨伟超,等.400 km/h+高速铁路隧道内气动效应及净空断面积分析[J].高速铁路技术,2021,12(02):96-101.[doi:10.12098/j.issn.1674-8247.2021.02.017]
　LUO Lusen,WANG Tiantian,YANG Weichao,et al.Analysis of Aerodynamic Effect and Clearance Sectional Area in Tunnels of 400 km/h+ High-speed Railway[J].HIGH SPEED RAILWAY TECHNOLOGY,2021,12(02):96-101.[doi:10.12098/j.issn.1674-8247.2021.02.017]
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400 km/h+高速铁路隧道内气动效应及净空断面积分析()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
12卷
期数:
2021年02期
页码:
96-101
栏目:
出版日期:
2021-04-28

文章信息/Info

Title:
Analysis of Aerodynamic Effect and Clearance Sectional Area in Tunnels of 400 km/h+ High-speed Railway
文章编号:
1674—8247(2021)01—0096-06
作者:
罗禄森;  王田天;  杨伟超;  刘金松;  何洪
1. 中铁二院工程集团有限责任公司, 成都 610031;
2. 中南大学, 长沙 410083
Author(s):
LUO Lusen;  WANG Tiantian;  YANG Weichao;  LIU jinsong;  HE Hong
1. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China;
2. Central South University, Changsha 410083, China
关键词:
400 km/h+高速铁路|隧道气动效应|乘坐舒适性|气密性指标|隧道断面积
Keywords:
400 km/h+ high-speed railway|tunnel aerodynamic effect|ride comfort|air tightness index|sectional area of tunnel
分类号:
0
DOI:
10.12098/j.issn.1674-8247.2021.02.017
文献标志码:
A
摘要:
隧道气动效应一直是影响高速铁路发展的关键问题之一，近年来国内外对于速度400 km/h及其以上的高速铁路隧道气动效应研究较少。本文在总结既有高速铁路隧道大量气动效应研究的基础上，重点结合拟建的成渝中线高速铁路，分析速度400 km/h+条件下隧道内压力和车体压力的变化特征，得到隧道内衬砌和附属设施的静压验算控制标准参考值，同时，基于我国既有高速铁路列车的长期动态气密性指标，结合我国现行的高速列车车厢内压力舒适度控制标准，探讨了不同速度条件下隧道内净空断面积。研究结果表明：（1）当列车分别以速度400 km/h、450 km/h和500 km/h在内净空断面积100 m2双线隧道内运行时，作用于隧道衬砌及附属设施静压变化幅度的验算标准分别不应小于17.5 kPa、23.2 kPa和29.7 kPa；（2）车厢内压力变化率主要是受车体压力变化幅度和车体表面负压控制，前后方司机室和1号、8号车厢内的气压舒适性相对更差；（3）在车速一定的条件下，隧道断面面积与车辆的密封性能存在负相关性，减小隧道断面需要提高车辆的气密性；（4）对于长期动态气密性指标满足12 s的8节标准编组高速列车，当列车速度为400 km/h时，采用100 m2的隧道断面面积是可行的；（5）当列车速度为450 km/h+时，隧道的断面面积需大于120 m2。
Abstract:
The aerodynamic effect of tunnels has always been one of the key issues affecting the development of high-speed railway. In recent years, few studies have focused on the aerodynamics of high-speed (400 km/h or higher) tunnels at home and abroad. Based on massive studies on the aerodynamics of existing high-speed railway tunnels in China, we analyzed the characteristics of intra-tunnel pressure and vehicle-body pressure changes at 400 km/h+ speed by studying the Second Chengdu-Chongqing High-speed Railway under construction, and obtained the reference values of static pressure checking control standard for lining and ancillary facilities in the tunnel. Moreover, based on the long-term dynamic air tightness index of existing high-speed trains in China, and in view of the prevailing pressure comfort control standard in cars of high-speed trains in China, we discussed the clearance sectional area in tunnels at different speeds. The study results indicate that:(1) When a train runs in a double-track tunnel with a clearance sectional area of 100 m2 at 400 km/h, 450 km/h, and 500 km/h, the checking standard for the static pressure variation acting on the tunnel lining and ancillary facilities shall not be less than 17.5 kPa, 23.2 kPa, and 29.7 kPa respectively. (2) The pressure change rate in a car mainly depends on the pressure variation of the car body and the negative pressure on the car-body surface, and the pressure comfort in the front and rear cabs, as well as in No.1 and No.8 cars, is worse. (3) Given a constant speed, the tunnel’s sectional area is negatively correlated with the vehicle’s sealing performance, and the air tightness of the vehicle needs to be improved if the tunnel’s sectional area is reduced. (4) It is feasible to adopt the 100 m2 sectional area for the 8-car standard marshaled high-speed trains with its long-term dynamic air tightness reaching 12 s at 400 km/h. (5)When a train reaches 450 km/h+,the tunnel’s sectional area must be larger than 120 m2.

备注/Memo

备注/Memo:
作者简介:罗禄森(1982-),男,高级工程师。基金项目:中铁二院工程集团有限责任公司科技发展计划项目（KSNQ202061）引文格式:罗禄森, 王田天, 杨伟超, 等. 400 km/h+高速铁路隧道内气动效应及净空断面积分析[J]. 高速铁路技术,2021,12(2):96-101.LUO Lusen, WANG Tiantian, YANG Weichao, et al. Analysis of Aerodynamic Effect and Clearance Sectional Area in Tunnels of 400 km/h+ High-speed Railway[J]. High Speed Railway Technology, 2021, 12(2):96-101.
更新日期/Last Update: 2021-04-28