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) ›› 2011, Vol. 30 ›› Issue (4): 782-785.DOI: 10.3969/j.issn.1674-0696.2011.04.018

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陡斜坡路堤失稳破坏现场实测及数值分析: 以广东梅河高速公路K28段为例

向冲1,费维水1,张玉芳2,魏少伟2   

  1. 1. 昆明理工大学建筑工程学院,云南昆明650500; 2. 中国铁道科学研究院铁道建筑研究所,北京100081
  • 收稿日期:2011-03-08 修回日期:2011-04-17 出版日期:2011-08-15 发布日期:2015-01-22
  • 作者简介:向冲(1986—),男,湖南岳阳人,硕士研究生,主要研究方向是道路路基路面工程。E-mail:hancock1986@hotmail.com。

Actual Measurement and Numerical Analysis of Instability Destruction of Fill Embankments on Slope Foundations in K28 Section in Meihe Highway

XIANG Chong 1,FEI Wei-shui 1,ZHANG Yu-fang 2,WEI Shao-wei2   

  1. 1. Institute of Civil Engineering,Kunming University of Science & Technology,Kunming 650500,Yunnan,China; 2. Institute of Railway Construction,China Academy of Railway Sciences,Beijing 100081,China
  • Received:2011-03-08 Revised:2011-04-17 Online:2011-08-15 Published:2015-01-22

摘要: 以广东梅河高速公路K28 + 360 ~ + 860 区段的陡坡路堤为研究对象,采用实测与数值分析相结合的方法,对 陡坡路堤的破坏过程及模式进行了分析。研究结果表明: K28 + 360 ~ + 860 区段陡坡路堤滑坡的破坏模式为填土 与原坡体交界面的软化造成斜坡路堤滑动; 修建公路时填土堵塞了地下水的排泄通道,地下水位在丰水季节向上 抬升,浸泡和软化填土与原地面交界面,使其强度降低是造成坡体滑动的主要原因。

关键词: 陡斜坡路堤, 破坏模式, 实测分析, 数值分析, 强度折减法

Abstract: Numerical analysis and actual measurement were performed to study the failure mode and process of the fill embankments on slope foundations taken K28 + 360 ~ + 860 section in Guandong Meihe highway as the study object. Based on the analysis,the following conclusions were obtained: the destroy pattern of the sliding surface of fill embankments on slope foundations of K28 + 360 ~ + 860 section was the slop embankment sliding caused by the interface soften of the original surface of the slope and fill embankment. The constructions of the highway blocked the groundwater discharge and reduced the strength of the original surface of the slope,which was the main reason of the slide of the fill embankments on slope foundations.

Key words: fill embankments on slope foundations, failure mode, field measurement analysis, numerical analysis, strength reduction FEM

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