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力学与实践 ›› 2000, Vol. 22 ›› Issue (3): 0-0.doi: 10.6052/1000-0879-f2000-069

• 论文 •    

测量土体内部位移场的一种新方法

孔宪宾 何卫忠   

  1. 江苏淮阳工学院建工系 223001 Tel: 0517-3640490(H)4931511(O)
  • 收稿日期:2008-01-15 修回日期:1900-01-01 出版日期:2000-06-10 发布日期:2000-06-10

A NEW METHOD IN MEASURING THE SOIL DISPLACEMENT FIELD

  • Received:2008-01-15 Revised:1900-01-01 Online:2000-06-10 Published:2000-06-10

摘要: 采用数字图像相关分析方法,对砂土受均布荷载作用的全场位移进行了测试分析,并与传统的布辛奈斯克解计算结果相比较,得到了满意的效果.该法在连续体的位移场测量方面已有广泛应用,而用于主体的位移测量却少见,测得位移场后,再根据土的本构关系即可求得相应的应力场.这为主体模型试验中星测变形开拓了新的途径,也为岩土和地基工程的深入研究提供了一种更有效的方法.

Abstract: The displacement field of sand underuniformly distributed load is measured by meansof digital image relative analysis, and the measuredresults axe compared with the Boussinesq's calcu-lationed ones. The result indicates that the test issatisfactory. This method is fiIst successfully ap-plied to the test of the displacement field of soil andis a new method in measuring deformation in soilmodel test, and is also a more effective means forthe study of geotechnical engineering and founda-tion engineering.