城市轨道交通活动断层区域用宽枕板试制及试验研究
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摘要
乌鲁木齐城市轨道交通1号线穿越活动断层区域采用的宽枕板是一种新型轨道结构,为验证宽枕板的制造、吊运及其力学特性满足工程需求,对宽枕板进行试制及试验研究。按照先张法预应力结构设计宽枕板,并制定宽枕板试制工艺及型式尺寸检验要求,基于有限元分析方法确定静载试验的检验荷载并进行宽枕板静载抗裂试验。结果表明:按照设计生产工艺制造的宽枕板,其制造误差可以控制在设计允许的范围内,吊运方便且稳定,可以满足工程需求,其静载抗裂特性可以满足工程需求。
The broad sleeper slab employed by Urban Rail Transit Line 1 of Urumqi in active fault zone is a new track structure. In order to verify the manufacture,hoisting,transportation as well as mechanical properties of the broad sleeper slab,trial manufacture and experimental research of the broad sleeper slab are carried out. The broad sleeper slab is designed on the basis of pre-tensioning structure,its trail manufacture method and dimension inspection requirements are established. The check load of static test is determined based on FE analysis method,and the static load test of broad sleeper slab is carried out.The results show that based on the production process of the broad sleeper slab,manufacturing error can be controlled within the allowance of design and the slab can be hoisted and transported easily and stably,which meet the requirement of engineering and the characteristics of crack resistance under static load also meet the requirement of engineering.
The broad sleeper slab employed by Urban Rail Transit Line 1 of Urumqi in active fault zone is a new track structure. In order to verify the manufacture,hoisting,transportation as well as mechanical properties of the broad sleeper slab,trial manufacture and experimental research of the broad sleeper slab are carried out. The broad sleeper slab is designed on the basis of pre-tensioning structure,its trail manufacture method and dimension inspection requirements are established. The check load of static test is determined based on FE analysis method,and the static load test of broad sleeper slab is carried out.The results show that based on the production process of the broad sleeper slab,manufacturing error can be controlled within the allowance of design and the slab can be hoisted and transported easily and stably,which meet the requirement of engineering and the characteristics of crack resistance under static load also meet the requirement of engineering.
引文
[1]新疆防御自然灾害研究所.乌鲁木齐轨道交通1号线活动断裂带的几何学特征与运动学特征研究初步结果[R].乌鲁木齐:新疆防御自然灾害研究所,2014.
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[2]赵坪锐.客运专线无砟轨道设计理论与方法研究[D].成都:西南交通大学,2008.
[3]杜银龙.无砟轨道与有砟轨道优劣分析[J].硅谷,2008(20):101.
[4]赵健.沪昆高铁北盘江特大桥聚氨酯固化道床施工质量控制技术[J].铁道建筑,2017(2):120-123.
[5]王红.铁路有砟道床聚氨酯固化技术的发展及应用[J].铁道建筑,2015(4):135-139.
[6]王其昌,韩启孟,译.板式轨道设计与施工[M].成都:西南交通大学出版社,2002.
[7]任静.板式轨道研究与设计初探[J].铁道标准设计,1996(1):25-28.
[8]卢祖文.我国铁路混凝土轨枕现状和发展[J].中国铁路,2006(6):8-11.
[9]欧阳炎.一种双向先张法预应力混凝土轨道板:中国,CN2934324[P].2006-05-05.
[10]肖杰灵,刘学毅,杨荣山.无砟轨道系统功能设计的概念和内涵[J].铁道工程学报,2008(3):20-23.
[11]Esveld C.Recent Developments in Slab Track[J].European Railway Review,2003,9(2):81-85.
[12]Rossberg R R.Early Slab Track Design on Revived High Speed Line[J].Railway Gazette International,2004,160(9):571-572.
[13]江成,范佳,王继军.高速铁路无砟轨道设计关键技术[J].中国铁道科学,2004(4):42-47.
[14]石苑苑.无砟轨道板力学性能实验分析及双层双向先张板优化设计[D].北京:清华大学,2013.
[15]田其义,王军文,石岩,张向东.CRTSⅡ型板式无砟轨道板力学性能试验研究[J].石家庄铁道大学学报(自然科学版),2010,23(4):36-40.
[16]范佳.S-2轨枕静载抗裂度的试验统计与分析讨论[J].混凝土与水泥制品,1991(6):25-27.
[17]包陈,王呼佳.ANSYS工程分析进阶实例[M].北京:中国水利水电出版社,2009.