土工基础

›› 2011, Vol. 25 ›› Issue (6): 1-.

• 工程实录 •    下一篇

坡顶建筑物对坡下公路安全影响研究

刘永良1， 刘永莉2, 彭小毛1， 吴建良1   

  1. (1.中国建筑第五工程局有限公司，长沙 410004; 2.兰州城市学院数学学院，兰州 730070)
  • 收稿日期:2011-02-24 出版日期:2011-12-20 发布日期:2012-01-15
  • 作者简介:刘永良,男，1971年生，高级工程师，公路工程、市政工程一级注册建造师，毕业于哈尔滨工业大学交通土建专业，主要从事工程管理工作。

The Effect of Buildings at the Slope Crest on a Roadway at the Toe

LIU  Yong  liang1, LIU  Yong  li2, PENG  Xiao  mao1, WU  Jian  liang1   

  1. (1. China Construction Fifth Engineering Division Corp. Ltd. Changsha 410004; 2. College of Mathmatics, Lanzhou City University, Lanzhou Gansu 730070, China)
  • Received:2011-02-24 Online:2011-12-20 Published:2012-01-15

摘要： 某二级公路上方需要修建廉租房小区，必须研究该拟建廉租房小区对于公路南侧边坡稳定问题的影响。在此设计了自然和饱水状态下的不同坡高的安全系数计算工况，发现坡高大于10 m，则不满足工程稳定的要求。根据设计中坡顶作用不同荷载和荷载作用点距离坡顶距离不同，发现建筑物采用浅基础方案时，荷载不能大于150 kPa,否则可能失稳；同时荷载作用点距离坡顶大于8 m时，荷载作用对坡体稳定的影响很小。

关键词: 边坡稳定, 公路建设, 建筑物荷载, 安全距离

Abstract: A proposed low\|rent housing community is at the crest of a slope with a highway at the toe. The stability of the slope is therefore very important to the buildings as well as to the roadway. The safety factors of the slope under both moist and saturated conditions are back\|calculated. It is concluded that the height of the slope could not exceed 10 meters. The effect of load magnitudes and loading locations to the edge of the slope has been thoroughly investigated. When a shallow foundation is proposed, slope instability will likely occur when the footing pressure is greater than 150 kPa. The impact of the building load on the slope is minimal when the distance is greater than 8 meter away from the edge of the slope.

Key words: slope stability, highway construction, building load, safety distances