Preface
At present, the development of railway construction in China is rapid. The number of construction projects related to the existing line is increasing year by year. The construction of the existing line has the characteristics of great interference between construction and transportation, great difficulty in construction organization, complex technical scheme, high risk of safety and construction period.
First, the demand for overall planning of transportation and construction is getting higher and higher. Hub transformation and large-scale station transformation often lead to the whole body, and even need to adjust the transportation organization in a wide range to cooperate with the construction. Therefore, the construction scheme should be closely combined with the transportation organization, considered as a whole, and provided conditions for each other, otherwise it is difficult to implement.
Second, the construction is more and more difficult and the construction period is tight. First, with the large-scale operation of high-speed railway, strict control is required for settlement and deformation, and the requirements for track accuracy are higher and higher; second, the construction environment is more and more complex, with the gradual improvement of the road network, the effective construction space of the new line into the existing hub is smaller and smaller, and the construction is more and more difficult; the third is that the research period of the early scheme is often long, the coordination work in the later implementation process is many, the procedure is complex, and the construction period is generally tight.
Third, the construction safety pressure of the existing line is large. The safety of railway operation is an eternal theme, and the pressure of construction safety is great.
In view of this, the author has compiled the construction of the existing line, hoping to provide help and reference for the builders engaged in the construction of the existing line. This book can be used by management and technical personnel engaged in railway construction, operation safety management, construction, design, supervision and so on. It can also be used by teachers and students in colleges and universities for construction organization design or construction course teaching case analysis.
Due to the limited level of editors and the short time of writing, there are inevitably defects in the book. Readers are welcome to give advice and correct it.
前 言
目前，我国铁路建设高速发展。涉及既有线施工项目逐年增加，既有线施工具有建设与运输互相干扰大、施工组织难度大、技术方案复杂、安全及工期风险高的特点。
第一，运输和建设的统筹性要求越来越高。枢纽改造、大型站改往往牵一发而动全身,甚至需大范围调整运输组织以配合施工,因此施工方案要和运输组织紧密结合，统筹考虑,互相提供条件,否则难以实施。
第二，施工难度越来越大，工期偏紧。一是随着高铁大规模的投入运营，对沉降和变形要求严格控制,对线路轨道精度的要求越来越高;二是施工环境越来越复杂， 随着路网逐渐完善,新线引入既有枢纽有效施工空间越来越小,施工难度越来越大;三是涉及既有线施工往往前期方案研究周期长， 后期实施过程中协调工作多,程序复杂,施工周期普遍偏紧。
第三，既有线施工安全压力大。铁路运营安全是永恒的主题,施工安全压力大。
鉴于此，编者对既有线施工进行了编写,希望对从事既有线施工的建设者提供帮助和借鉴。本书可供从事铁路建设、运营安全管理和施工、设计、监理等相关管理和技术人员使用;也可供高等院校师生施工组织设计或建设课程教学案例分析使用。
由于编者水平有限，加之编写时间仓促，书中难免存在瑕疵，敬请广大读者不吝赐教，以利改正!
Yong Lu, male, the Han nationality, master’s degree, senior engineer, born in Yongnian County, Hebei Province in May 1970. He graduated from Southwest Jiaotong University. He is now the director of materials and equipment department (station building office) of Zhengzhou Wanzhou Railway Passenger Dedicated Line Henan Co., Ltd. He has successively participated in the construction and management of Zhengzhou-Xi’an Passenger Dedicated Railway, Zhengzhou-Xu’an Passenger Dedicated Railway, Zhengzhou-Fu High-Speed Railway, etc. Kaifeng North Station of Zheng Xu High Speed Railway was awarded the nomination award of “the Most Beautiful Building in Henan Since the Founding of New China” by Henan Province Department of Housing and Urban Rural Construction. He participated in a number of subjects such as “Research on Complete Set Construction Technology of CRTs III Pre Tensioned Slab Ballastless Track” which were awarded as Scientific Research Achievements by China Railway Group. He won the China Railway Science and Technology Award.
路勇，男，汉族， 1970 年 5 月生，河北永年人，毕业于西南交通大学，硕士研究生，高级工程师，现任郑万铁路客运专线河南有限责任公司物资设备部（站房办）部长。先后参与了郑西客专、郑徐客专、郑阜高铁等建设管理。郑徐高铁开封北站被河南省住建厅授予“新中国成立以来河南最美建筑”提名奖；个人参与的《CRTSIII 型先张板式无砟轨道成套施工技术研究》等多项课题被国铁集团评为科研成果，曾获中国铁道科技奖。
Qi Lu, male, the Han nationality, bachelor’s degree, born in Gongzhuling City, Jilin Province in August 1974. He once participated in the construction and management of station buildings and production and living houses of Zhengzhou Xi’an Passenger Dedicated Line, Zhengzhou Xuzhou Passenger Dedicated Line, Shangqiu Hefei Hangzhou Railway, Zhengzhou Wanzhou Railway, Zhengzhou Zhoukou Fuyang Railway. Kaifeng North Station of Zheng Xu High Speed Railway was awarded the nomination award of “the Most Beautiful Building in Henan Since the Founding of New China” by Henan Province Department of Housing and Urban Rural Construction. Zhengzhou Wanzhou Railway Fangcheng Station, Nanyang East Station and Dengzhou East Station won the gold medal of Beijing Great Wall Structure Cup Project.
鲁琪，男，汉族， 1974 年 8 月生，吉林省公主岭市人，大学本科学历。曾经主要参与了郑州至西安客运专线、郑州至徐州客运专线、商丘至合肥至杭州铁路、郑州至万州铁路、郑州至周口至阜阳铁路的站房及生产生活房屋的建设管理工作。郑徐铁路开封北站被河南省住房和城乡建设厅授予“新中国成立以来河南最美建筑”提名奖；郑州至万州铁路方城站、南阳东站、邓州东站获得北京市结构长城杯工程金质奖。
Mu-Tang Wu, male, the Han nationality, bachelor’s degree, born in Puyang City, Henan Province in October 1977. He is the assistant manager of Material and Equipment Department (station building office) of Zhengzhou Wanzhou Railway Passenger Dedicated Line Henan Co., Ltd. He has successively participated in the construction and material management of Jin Yu Lu Railway Corridor, Shanghe Hangzhou High Speed Railway, Zheng Wan High Speed Railway and Zheng Fu High Speed Railway. Among them, Zhengzhou Wanzhou Railway Fangcheng Station, Nanyang East Station and Dengzhou East Station won the gold medal of Beijing Great Wall Structure Cup Project.
武模堂，男，汉族， 1977 年 10 月生，河南濮阳人，大学本科学历，郑万铁路客运专线河南有限责任公司物资设备部（站房办）协理，先后参与晋豫鲁铁路通道、商合杭高铁、郑万高铁、郑阜高铁建设及物资管理，其中郑州至万州铁路方城站、南阳东站、邓州东站获得北京市结构长城杯工程金质奖。
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