Abstract：Research purposes: The safety of passenger － dedicated line becomes a focus of all society． China is a country where earthquakes occur frequently because of the widespread distribution of seismic fault zones throughout the country． There is the potential safety problems when the passenger dedicated line passing through the fault zone，so the appropriate engineering measures should be taken and the appropriate monitoring methods should be used to ensure the security of the line operation． Taking the Tianjin － Qinhuangdao Passenger Dedicated Line as an example，this paper studies the relevant issues on passenger dedicated line crossing fault zone．
Research conclusions: Based on the analyses of the horizontal and longitudinal sections of the track crossing the Lulong fault zone，the bridge engineering and the track type of the Tianjin － Qinhuangdao Passenger Dedicated Line， the original design can not meet the requirements that the service life of the main structure of the bridge should be up to 100 years and the service life of the ballastless track should be up to 60 years in light of the seismic safety assessment report stipulating that the displacement of non － earthquake creep sliding is no more than 1mm． It is suggested the new － type bridge supports with large lifting height and horizontal and vertical adjustment and the adaptable and non － longitudinal connected ballastless track should be used． Meanwhile，the horizontal and vertical monitoring network should be established to conduct a dynamic monitoring． The principle of passenger dedicated line crossing fault zone is offered．
The Third Railway Survey and Design Institute Group Corporation． Special Report on Relevant Issues of Lulong Fault Zone along the Tianjin －Qinhuangdao Passenger Dedicated Rail Line［R］．Tianjin: The Third Railway Survey and Design Institute Group Corporation，2010．
The Third Railway Survey and Design Institute Group Corporation． Report on the Variation from Ballast Track to Ballastless Track of the Four Segments of the Tianjin － Qinhuangdao Rail Line ［R］． Tianjin: The Third Railway Survey and Design Institute Group Corporation，2009．
China Earthquake Disaster Prevention Center． The Seismic Safety Assessment Report of the Engineering Site of the Tianjin － Qinhuangdao Passenger Dedicated Rail Line［R］． Beijing: China Earthquake Disaster Prevention Center，2009．
［4］ GB 50111—2006，铁路工程抗震设计规范( 2009 年版)［S］．
GB 50111—2006，Code for Design of Railway Engineering ( 2009 edition) ［S］．
［5］ TB 10621—2009，高速铁路设计规范( 试行) ［S］．
TB 10621—2009，Code for Design of High － speed Railway ( Trial) ［S］．
［6］ GB 12897—2006，国家一、二等水准测量规范［S］．
GB 12897—2006，Specifications for the First and Second Leveling ［S］．
［7］ DZ/T 0154—95，地面沉降水准测量规范［S］．
DZ/T 0154—95，Specifications for Standard Survey of the Land Subsidence ［S］．
［8］ JGJ 8—2007，建筑变形测量规程［S］．
JGJ 8—2007，Code for Deformation Measurement of Building and Structure ［S］．
［9］ GBT/18314—2009，全球定位系统( GPS) 测量规范［S］．
GBT/18314—2009， Specifications for Global Positioning System ( GPS) Surveys ［S］．
［10］ TG/04—2009，铁路客运专线技术管理办法( 试行) ( 300 ～350 km/h 部分) ［S］．
TG/04—2009，The Ministry of Railways of the People’ s Republic of China． The Technical Management Criteria of the Passenger Dedicated Railway Line ( Trial) ( The 300 － 350km/h Part)［M］． Beijing: China Railway Publishing House，2010．
［11］ 铁建设［2006］189 号，客运专线无碴轨道铁路工程测量暂行规定［S］．
Railway Construction［2006］ No． 189，Provisional Regulations on the Railway Engineering Survey for Ballastless Tracks of Passenger Dedicated Rail Line［S］．
2011, Vol. 28 
版权所有 © 2014 《铁道工程学报》编辑部