X img

官方微信

img

群号:冰川冻土交流群

QQ群:218834310

高级检索
作者投稿 专家审稿 编辑办公 编委办公 主编办公

冰川冻土 ›› 1983, Vol. 5 ›› Issue (2): 19-29.

• 研究论文 • 上一篇    下一篇

冻胀反力的试验研究

隋咸志, 左力   

  1. 黑龙江省水利科学研究所
  • 收稿日期:1980-12-20 修回日期:1982-10-20 出版日期:1984-05-25 发布日期:2012-04-26

THE EXPERIMENTAL RESEARCH OF DILATATIONAL COUNTER-FORCE

Sui Xianzhi, Zuo Li   

  1. Heilongjiang Institute of Scientific Research in Water Conservancy
  • Received:1980-12-20 Revised:1982-10-20 Online:1984-05-25 Published:2012-04-26

摘要: 桩基是各类建筑工程的主要基础型式之一,尤其是作为桥和渡槽的基础,它在水利工程和道路桥梁工程中应用很多。但是,在季节冻土地区,桩基建筑物经常由于桩柱冻拔而遭破坏。

Abstract: For getting a clear understanding of the law of pile foundation self-anchor and for the purpose of applying selfanchor measurement in engineering to protect pile foundation dilatation,the research on this subject is of great significance.In recent years,we have done some experiments in freezer with dilatational counter-force models of which the geometric proportion are 1 to 2 and 1 to 4. In Wanjia experimental site,the experiment of dilatational counter-force prototype has been done and an experimental bridge with broadenpile foundation has been built.The experimental results show that the dilatational counter-force and the dilatational force occur simultaneously,and the dilatational counter-force changes with dilatational force;the distribution of dilatational counter-force along the horizontal direction is uneven; in the case of imcomplete anchored broaden pile foundation, the dilatational counter-force is distributed like the shape of a saddle.In the case of broaben pile foundation,the dilatational counter-force distributed within the extent of broaden plate can be born by pile foundation,thus the dilatational counter-force has been overcome and the ability for resisting dilatation of the pile foundation has been increased,which is so called the self-anchored role.