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) ›› 2016, Vol. 35 ›› Issue (4): 52-55.DOI: 10.3969/j.issn.1674-0696.2016.04.11

• 道路与铁道工程 • 上一篇    下一篇

坡积体路段的稳定性研究

毛雪松,刘龙旗,张海宁,王莉云,朱凤杰   

  1. (长安大学 公路学院,陕西 西安 710064)
  • 收稿日期:2015-09-28 修回日期:2015-11-03 出版日期:2016-08-20 发布日期:2016-08-20
  • 作者简介:第一作者:毛雪松(1976—),女,吉林春晖人,教授,博士,主要从事路基稳定性方面的研究。E-mail:xuesongxian@aliyun.com。
  • 基金资助:
    交通运输部科技项目(10710-2012221147)

Study on the Stability of Slope Product Section

MAO Xuesong, LIU Longqi, ZHANG Haining, WANG Liyun, ZHU Fengjie   

  1. (School of Highway, Chang’an University, Xi’an 710064, Shaanxi, P.R.China)
  • Received:2015-09-28 Revised:2015-11-03 Online:2016-08-20 Published:2016-08-20
  • Contact: 刘龙旗(1989—),男,河南新乡人,硕士研究生,主要从事公路路基及防灾减灾方面的研究。E-mail:136827953@qq.com。

摘要: 针对坡积体路段的稳定性进行分析。按照坡积体的形成方式将坡积体分为崩坡积体、残坡积体和冲坡积体,并对这3种坡积体进行了定义。通过分析崩坡积体、残坡积体和冲坡积体的物质组成、力学特性及相关特征,得出坡积体引起的常见路基病害类型。最后采用多因素正交试验与Flac3D有限元数值模拟方法,建立坡积体半填半挖路基下边坡稳定性模型。分析了边坡高度、坡度及土性参数对边坡稳定性的影响,最后得出影响坡积体半填半挖路基下边坡的因素为:填方土体黏聚力C1>路基高度H>填方土体内摩擦角Φ1>挖方土体内摩擦角Φ2>挖方土体黏聚力C2>填土宽度B。

关键词: 道路工程, 坡积体, 路基病害, 边坡稳定性, Flac3D数值模拟

Abstract: The stability of the slope product is analyzed. Slope product was divided into the colluvial slope product, the residual slope product and the alluvial slope product as per its formation, which were defined respectively. By analyzing the material composition, mechanical properties and related characteristics of the colluvial slope product, the residual slope product and the alluvial slope product, the types of the common roadbed diseases caused by them were obtained. By using the multi factor orthogonal experiment and Flac3D finite element numerical simulation method, the half filling and half digging roadbed slope stability model was established to analyze the influence of slope height, slope angle and soil parameters on the stability of the slope. Finally, the factors affecting the slope were concluded: filling viscous cohesion C1 > subgrade height H > fill soil friction angle Φ1 > excavation soil friction angle Φ2 > excavation viscous cohesion C2 >fill's width B.

Key words: highway engineering, slope product, subgrade diseases, slope stability, Flac3D numerical simulation

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