文档介绍：Y彳77003
新建铁路跨区间无逢线路的设计与研究
摘要
/+跨区间无缝线路是一种新型的轨道结构,特别是在高速、重载运输条件
下,该轨道结构显示出其技术和经济的优越性;世界发达国家应用这种技术基本达到成熟阶段,我国虽在既有线上也铺设了跨越几个闭塞分区的超长轨节的无缝线路,但新建铁路一次铺设跨区间无缝线路在我国仅在正在建设的秦沈客运专线上刚刚开始尝试,在设计、施工等方面尚无成熟的经验可资借鉴,因此,研究分析其设计理论,更科学、合理地进行跨区间无缝线路设计
对于发展我国跨区间无缝线路技术有着重要的意义。
据此勰研究跨区间无缝线路的设计理论以及关键技术及其发展状况
和存在问题,重点研究道岔无缝化后对基本轨附加力的计算理论及方法,研究分析如何考虑各种附加力(无缝道岔、桥上无缝线路)的作用进行跨区间无缝线路强度和稳定性计算的计算方法,同时研究分析有碴道床和无碴道床的强度和稳定性计算方法;结合工程实践进行跨区间无缝线路关键技术的设计实践与分析:通过对道岔无缝化后的附加力计算与分析,对道岔的构造设计提出参考与建议。
关键词:新建铁路。跨区间无缝线路
Design and Research of Seamless Line for New Railway seamless 1ine iS a new type of track structure It
displays technical and economic superiority especially for high-speed and heavy—Ioad transportation Its application has basically reached mature period in developed countries worldwide Though there were seamless lines of super-length track spanning several occlusion division laid on existing lines in China It is iUSt now the first time Of trylng to lay span—routine seamless line for the passenger transport special railway line from Qinghuangdao tO Shenyang which is in
construction.、ve can’t reference mature experience in the aspect of
its design,construction etc So researching&analyzing the design theory will lead to designing span—routine seamless line more scientifically and reasonably It iS meaningful of great importance to develop Span-routine seamless lines technology in our country.
So,analyzing and researching the design theory and key technology and its developing condition as well as existing problems
for span—routine seamless line especially putation theory and
method for basic track after seamlessing switch;Analyzing and researching putation method for intension and Stability of
span-routine seamless lines On how tO consider all kinds of add—force
(such as seamless switch,seamless Iines on bridge);Analyzing and researching putation theory and method for intension and stability ofgravelly sleeper and n01]一gravelly sleeper;Designing and analyzing the key techno