|
|
|
| Research on the Crack Repairing Materials of CA Mortar of CRTS I Ballastless Track |
| ZHANG Jian-hua,YANG Yan,LIU Shang-chun, SUN Kun |
| Cheng-Mian-Le Passenger Dedicated Railway Company Limited, Chengdu, Sichuan 610072, China;China Southwest Research Institute of China Railway Engineering Company Limited,Chengdu, Sichuan 610072, China |
|
|
|
Abstract Research purposes:This paper analysed the causes of crack of CA mortar of the high-speed railway of CRTS I slab ballastless track. The basic technical requirements of the crack repairing was proposed, the performances of the epoxy resins and the high performance modified resins were compared and studied, such as the construction feasibility, the fill adaptability and the durability. Through the contradistinctive experimental research, the new material of crack repairing of CA mortar was got, which had more construction feasibility, fill adaptability and durability.
Research conclusions:(1)Through the comparative analysis, it shows the construction and filling adaptability, RX-SI is suitable for the actual CRTS I CA mortar from the joint construction process. The construction process is simple and feasible.(2)The durability research results show that the elastic modulus, elastic modulus and CA mortar RX-SI perfectly matched, RX-SI can ensure the ballastless track plate repair processing structure safety and durability. (3) The results of the research are specially designed for CRTS I ballastless track CA mortar joints, which can be well widely used in the CRTS I ballastless track CA mortar gap repair.
|
|
Received: 23 January 2014
|
|
|
|
|
|
[1] TG/GW115—2012,高速铁路无砟轨道线路维修规则(试行)[S].
TG/GW115—2012,Ballastless Track of High-speed Railway Line Repair Rules (Trial Implementation)[S].
[2] 科技基[2008]74号,客运专线铁路CRTS I型板式无砟轨道水泥乳化沥青砂浆暂行技术条件[S].
Technology [2008]-74,Passenger Dedicated Railway CRTS I Type Ballastless Track Interim Technical Conditions of Cement Emulsified Asphalt Mortar[S].
[3] 陈平. 环氧树脂[M],北京:化学工业出版社,2002.
Chen Ping. Epoxy Resin [M]. Beijing: Chemical Industry Press, 2002.
[4] 王平,徐浩,谢铠泽,等. CRTS I型CA砂浆动态压缩试验及本构关系研究[J]. 铁道工程学报,2014(5):35-40.
Wang Ping,Xu Hao,Xie Kaize,etc. Research on the Dynamic Compressive Test of China Railway Track System (CRTS)I Type CA Mortar and Its Constitutive Relationship[J]. Journal of Railway Engineering Society, 2014(5):35-40.
[5] 吴绍利,王鑫,吴志强,等. 无砟轨道套管快速维修技术研究[J]. 铁道建筑,2011(10):107-109.
Wu Shaoli, Wang Xin, Wu Zhiqiang, etc. Ballastless Track Casing Fast Repair Technology[J]. Railway Construction, 2011(10):107-109.
[6] 曾真. 高速铁路板式无砟轨道破损分析及工务修程修制研究[D]. 成都:西南交通大学,2009.
Zeng Zhen. The High-speed Railway Ballastless Track Damage Analysis and the Railway Maintenance System Research[D]. Chengdu: Southwest Jiaotong University, 2009.
[7] 赵丽珍. 高速铁路综合维修“天窗”开设形式与行车组织协调问题的研究[J]. 中国铁道科学,2002(2):127-131.
Zhao Lizhen. Research on High Speed Railway Comprehensive Repair "Skylight" Open Coordination Problems and Traffic Organization[J]. China Railway Science, 2002(2):127-131. |
|
|
|
2014, Vol. 31 
