高速铁路红层改良填料路堤动力特性及沉降规律研究  

DYNAMIC CHARACTERISTICS OF HIGH-SPEED RAILWAY RED LAYER IMPROVED FILLIN G EMBANKMENT AND RESEARCH ON SETTLEMENT LAW

作　　者：鲁佩林 王凯[1] LU Pei-lin;WANG Kai(China Railway First Group Municipal Environmental Protection Engineering Co.,Ltd.,730050,Lanzhou,China)

机构地区：[1]中铁一局集团市政环保工程有限公司,兰州730050

出　　处：《建筑技术》2024年第S01期142-147,共6页Architecture Technology

摘　　要：川渝地区高速铁路建设频繁跨越红层地区,为高速铁路的建设和运营带来了新的风险和隐患。为了解决红层土工程适应性差的问题,对红层土试样展开室内土工试验,并且基于改良土工程参数构建了高速铁路红层改填料路堤动力学模型,分析了高速列车荷载下路堤内动应力、动位移、加速度的变化规律并提出质量控制措施。期望研究成果为红层地区高速铁路路基设计和施工提供理论指导与实践经验。Driven by national strategic backgrounds such as the"Western Development",the construction of high-speed railways in the Sichuan Chongqing region frequently crosses the red zone,bringing new risks and hidden dangers to the construction and operation of high-speed railways.In order to solve the problem of poor adaptability of red soil engineering,indoor geotechnical tests were conducted on red soil samples;Secondly,based on the improved soil engineering parameters,a dynamic model of high-speed railway red layer filling embankment was constructed,and the changes in dynamic stress,displacement,and acceleration inside the embankment under high-speed train load were analyzed,and quality control measures were proposed.We expect the research results to provide theoretical guidance and practical experience for the design and construction of high-speed railway subgrades in red areas.

关 键 词：高速铁路 红层改良土 动力特性 路堤填筑 

分 类 号：TU74[建筑科学—建筑技术科学]