中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2017, Vol. 36 ›› Issue (3): 54-59.DOI: 10.3969/j.issn.1674-0696.2017.03.09

• 道路与铁道工程 • 上一篇    下一篇

湿陷性黄土区高铁路基沉降控制综合技术研究

屈耀辉,李奋,庄德华,米维军,武小鹏   

  1. (1.中铁西北科学研究院有限公司,甘肃 兰州 730000;2. 兰州交通大学,甘肃 兰州 730070)
  • 收稿日期:2015-10-21 修回日期:2016-12-15 出版日期:2017-03-20 发布日期:2017-03-24
  • 作者简介:屈耀辉(1981—),男,湖南永州人,高级工程师,硕士生导师,主要从事特殊土地区筑路技术、特殊土基本性质与测试技术及高铁状态监测与评估预警技术方面的研究。E-mail:qyh69@126.com。
  • 基金资助:
    2006年国家科研院所技术开发研究专项资金项目(NCSTE-2006-JK-ZX-215);2010年国家科研院所技术开发研究专项资金项目(2010EG123210)。

Relationship between Roadbed Compaction Degree and Drum Acceleration

MA Liying, LIANG Naixing, CAO Yuanwen, GUI Shaoxiong, FAN Wensheng, FAN Youwei   

  1. (1.Northwest Research Institute Co., Ltd., of C. R. E. C, Lanzhou 730000, Gansu, P. R. China; 2. Lanzhou Jiaotong University, Lanzhou 730070, Gansu, P. R. China)
  • Received:2015-10-21 Revised:2016-12-15 Online:2017-03-20 Published:2017-03-24

摘要: 郑州至西安高速铁路是世界上第一条大范围穿越湿陷性黄土地区的高速铁路。依托郑州至西安高速铁路建设,以路基实体试验为主要研究方法,对湿陷性黄土地区高速铁路路基沉降控制技术难题进行了系统研究,总结并提出了湿陷性黄土地区高速铁路路基沉降控制的综合技术。其主要工程措施包括以下6个方面:①客观评价黄土场地湿陷性;②黄土填料改良;③提高路基本体刚度;④采取合理地基处理方法;⑤人为加速路基沉降变形;⑥开展路基沉降观测与动态评估。

关键词: 铁道工程, 湿陷性黄土, 高速铁路, 路基, 沉降控制

Abstract: Zhengzhou-Xi’an high-speed railway is the world’s first high-speed railway which crosses the collapsible loess area in a large scale. Based on the construction of Zhengzhou-Xi’an high-speed railway, the subgrade entity experiment was taken as a major study method. A systematic research on the technical problems of subgrade settlement control of high-speed railway in the collapsible loess region was carried out, and comprehensive measures for subgrade settlement control of high speed railway subgrade in collapsible loess area were summarized and proposed. The major engineering measures include six aspects: ①objective evaluation of the collapsibility of loess site; ②loess fill improvement; ③enhancement of the subgrade stiffness; ④adoption of reasonable foundation treatment measures; ⑤artificial acceleration of the subgrade settlement deformation; ⑥conduction of observation and dynamic assessment of subgrade settlement.

Key words: railway engineering, collapsible loess, high-speed railway, subgrade, settlement control

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