邓友生;王一雄;苏家琳;孙雅妮;蔡梦真;

• 1:西安科技大学建筑与土木工程学院

摘要(Abstract)：

桩网结构是近些年来出现加固软弱地基加固的路基,利用桩、路基、填土和土工材料之间相互协同作用,共同承担路基的上部荷载,提高结构承载力,具有土体侧向位移小、工后沉降易控制、地基处理厚度深、相邻建筑影响小等优点,故研究桩承结构路基在列车动荷载作用下的沉降变形特性和动力响应是十分必要的,桩承结构路基动力学已成为铁道工程、结构力学等众多领域的共同研究热点。首先简述了桩承结构的加固路基的机理;其次,分别从湿陷性黄土路基桩承结构的沉降计算、土拱效应和动力响应特性等方面进行理论研究与试验分析;并列举了采取桩承结构处理路基的工程实例,证明了其应用的可行性;最后指出其有待深入研究的问题,并展望高速铁路桩承结构发展的前景。

关键词(KeyWords)： 桩网结构;沉降变形;土拱效应;动力响应

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51878554,41672308,51378182);; 陕西省自然科学基础研究计划重点项目(2018JZ5012)

作者(Author): 邓友生;王一雄;苏家琳;孙雅妮;蔡梦真;

Email:

DOI: 10.13800/j.cnki.xakjdxxb.2020.0301

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