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冰川冻土  2014 

寒区高速铁路路基变形智能监测系统设计与实现

DOI: 10.7522/j.issn.1000-0240.2014.0114, PP. 944-952

Keywords: 季节冻土区,客运专线,长期监测系统,路基,冻胀

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Abstract:

新建哈尔滨至大连客运专线是我国在中-深季节冻土区第一条建设运营的高速铁路,其社会、经济意义十分突出.为了解该铁路路基变形及其与环境变量之间的关系,在哈大高铁沈哈段沿线布设了15个路基监测断面以进行地温监测和路基不同分层的变形监测,同时开发升级了哈大高铁长期监测系统软件YH-FSMS,用于控制数据的采集、存储、传输和分析工作,并通过通讯网络实现了远程传输和控制.通过对开通运营后第一个冻结-融解期的监测数据分析,哈大高铁长期监测系统运行基本正常,获得的监测数据真实可靠,能够为季节性冻土区高速铁路路基变形状况评价提供支撑.利用长期监测系统对典型路基地段进行了连续监测,分析了路基冻融变形机理及其环境影响特征,并据此提出保障路基热平衡状态、改善路基系统水热条件、减弱路基变形影响要素的工程补强措施.该系统的建立为路基冻胀变形实时监控和预警提供了科学依据,也为开展冻土区相关工程研究提供了技术示例.

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