摘要
为了寻求更加合理的土压力计算理论,对杭州、宁波及奉化软土进行了大量的SEM图像扫描,从土体的微观结构出发,通过图像分析软件统计了软土孔隙率与接触面积率的关系,结合土体侧向应力传递的原理,得到了考虑接触面积的土压力计算理论,并通过案例,分析了土压力理论计算与实际监测存在差异的可能原因。
To fine a more reasonable earth pressure calculation theory, many SEM images for soft clay in Hangzhou, Ningbo and Fenghua had been scanned. The relationship between porosity and contact area of soft clay was got by statistics. Thinking the soil lateral stress transfer principle, a calculation theory of earth pressure considering soil contact area has got. The possible reason of the differences between earth pressure and the actual monitoring earth pressure was analysis by a case.
作者
徐日庆
邓祎文
黄永民
李建平
Xu Riqing;Deng Yiwen;Huang Yongmin;Li Jianping(Research Center of Coastal and Urban Geotechnical Engineering,Zhejiang University,Hangzhou 310058,China;Guangdong Construction Vocational Technology Institute,Department of Civil Engineering,Guangzhou Guangdong 510440,China;Zhejiang Nanxing Construction Engineering Test Ltd.,Hangzhou 310051,China)
出处
《科技通报》
北大核心
2017年第2期156-162,213,共8页
Bulletin of Science and Technology
关键词
土压力
微观结构
接触面积
孔隙率
earth pressure
microstructure
contact area
porosity
