胶州湾第二海底隧道车行横通道合理宽度研究  

Study on Reasonable Width of Vehicle Cross Passages of Jiaozhou Bay Second Subsea Tunnel

作　　者：孙文昊[1,2] 王加庆 陈立保 SUN Wen-hao;WANG Jia-qing;CHEN Li-bao(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan Hubei 430063;National-Local Joint Engineering Research Center of Underwater Tunnelling Technology,Wuhan Hubei 430063;Qingdao Urban Architecture Design Co.,Ltd.,Qingdao Shandong 266061)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063 [2]水下隧道技术国家地方联合工程研究中心,湖北武汉430063 [3]青岛城市建筑设计院有限公司,山东青岛266061

出　　处：《公路交通科技》2023年第3期158-165,共8页Journal of Highway and Transportation Research and Development

基　　金：国家重点研发计划项目(2021YFB2600800)。

摘　　要：分离式双洞道路隧道之间的横通道对应急救援起着重要作用,目前国内大型海底隧道工程横通道宽度设计研究尚属空白。采用资料调研、理论分析和对比论证的方法,对胶州湾第二海底隧道车行横通道合理宽度设计进行了研究,包括海底隧道内消防车主要行车参数研究、内部救援车辆最小转弯半径调研分析、救援车从横通道进出主线隧道所需净宽对比论证、救援车从横通道进出服务隧道所需宽度对比分析、不同宽度横通道工程费用研究等。结果表明:车辆直角转弯时,主线隧道3条车道宽度组成为(3.75+3.5+3.5)m,满足转弯前最小宽度要求;当车行横通道路面宽4.0 m时,主线隧道转入车行横通道的边缘位置,从左、中、右侧车道转入横通道均需对其进行局部加宽;当车行横通道路面宽度6.0 m时,消防车可从主线隧道一次性转入车行横通道,从横通道可一次性转至主线隧道任意一条车道,为隧道救援提供有利条件;当横通道路面宽度增大至8.0 m时,可实现横通道与主线隧道任意一条车道之间的转入或转出,相对6.0 m宽路面,仅增加了从左侧车道一次性转入横通道的功能。综合考虑使用功能、工程建设难度和经济性,建议车行横通道路面宽度取6.0 m。研究成果可应用于工程设计,为后续的海底隧道工程设计、施工提供参考借鉴。The cross passage for the separated double-hole road tunnels plays an important role in emergency rescue.At present,the design research on the width of the cross passage in large-scale subsea tunnel projects in China is still blank.Using the research methods of data investigation,theoretical analysis and comparative demonstration,the reasonable width of the vehicle cross passages in the design process of the Jiaozhou Bay Second Subsea Tunnel is studied.The research content includes research of main driving parameters of fire trucks in the subsea tunnel,investigation and analysis of the minimum turning radius of rescue vehicles inside the tunnel,comparison and demonstration of the clear width required for rescue vehicles to enter and exit the main line tunnel from the cross passage,comparative analysis of the width required for rescue vehicles to enter and exit the service tunnel from the cross passage and research on the project cost of different width cross passages,etc.The result shows that(1)when a vehicle turns at right angles,the 3 lane widths of the main line tunnel are(3.75+3.5+3.5)m,which meets the requirement of minimum width before turning;(2)when the width of the vehicle cross passage is 4.0 m,it needs to be widened locally if fire trucks turn into the cross passage at the edge of the cross passage from the left,middle and right of the main line;(3)when the width of the vehicle cross passage is 6.0 m,the fire trucks can transfer from the main line tunnel to the vehicle cross passage at one time,and from the vehicle cross passage to any lane of the main line tunnel at one time,which can provide favorable conditions for tunnel rescue;(4)when the pavement width of the cross passage increases to 8.0 m,it can turn in or out between the cross passage and any lane of the main line tunnel,and it only adds the function of turning into the vehicle cross passage from the left lane at one time compared with the 6.0 m wide pavement.Comprehensively considering the use function,the difficulty of project construction

关 键 词：隧道工程 合理宽度 设计研究 车行横通道 转弯半径 

分 类 号：U452.26[建筑科学—桥梁与隧道工程]