摘要
本文利用渗水力ｎｇ土工模型试验方法，对饱和土地基在不同埋深的圆形基础荷重下，进行了地基载荷性状试验研究。模型试验成果及初步分析表明，基础具有埋深，将对地基载荷性状产生两种效果。一则可以减少地基变形，并提出地基变形比界限值概念；再者可以提高地基强度；通过分析试验所获的地基比例界限强度增长规律，提出地基设计强度中附加压力与自重压力应分开修正的深度修正模式。
A brief introduction to the new equipment of geotechnical model test in ng field produced byseepage body force, and description of the results of model test results of saturated foundation soilunder cireular plate loading, the plate was embedded at different depth below the surface of soil, Werepresented. Model tests in ng field illustrated that increased embedded depth of footing Will lead to thedistinct effects on the semement and strength of the foundation soil, the former tends to decrease andthe latter tends to increase. Based on these results, a new conception of the limited minimum settlementand its ratio, and the correction formnula of strength at different embedded depth are also given.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1994年第1期8-20,共13页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金
关键词
土工模型试验
渗水力模型
土地基
geotechnical model test,hydraulic gradient similarity model test, Centrifugal model test,foundation of saturated soil, seepage force, foundation embedment.
