摘要
针对位移效应刚性挡土墙墙后被动土压力的分布特点及规律,引入了内外摩擦角与位移之间的关系公式,得出了最危险滑动面倾角的计算公式。分析了能量法在计算挡土墙土压力中的应用,并对能量法提出的土压力计算公式进行了改进。把改进后的计算值和未改进过的计算值分别与实际值比较,结果表明,改进后的计算公式得出的计算值更符合实际情况。
Based on the characteristics of passive earth pressure changing with the displacement of retaining wall,The relationship between the outer friction angles and the wall movement was quoted.,The formula for angle of the most unfavourable was established.Use of energy method for calculating the earth pressure against rigid retaining wall has been studied and discussed,and the formula based on energy method was improved.Comparison of the calculated results with the measured results from example show that the improved formula can provide a good prediction of the passive earth pressure behind rigid retaining wall under translation mode.
出处
《安徽建筑工业学院学报（自然科学版）》
2008年第1期20-23,共4页
Journal of Anhui Institute of Architecture(Natural Science)
关键词
刚性挡土墙
被动土压力
能量法
平动位移
外摩擦角
rigid retaining wall
passive earth pressure
energy method
translation mode
the outer friction
