摘要
针对目前软土地基排水固结加固处理后地基土抗剪强度指标增长变化复杂的问题,基于抗剪强度摩尔包络线理论,推求了超固结淤泥质地基土任意固结度下地基土总应力抗剪强度指标解析计算式,并通过与现有计算理论对比分析,表明任意固结度下地基土抗剪强度指标随固结度的增加而增加,更符合浙江沿海地区淤泥质地基土实际工程经验理论;最后通过实际工程案例现场试验检测对比分析,认为新推求公式计算值更接近于实际土工试验值。
In view of the complex changes in the shear strength index of foundation soil after drainage and consolidation of soft soil foundations,based on the theoretical analysis of the shear strength of soil mechanics with the envelope of the soil,an analytical formula for the shear strength of foundation soils under any degree of consolidation is deduced. The shear strength index of foundation soil under any degree of consolidation is an increasing function of the degree of consolidation. Finally,the actual engineering case test is used to verify the comparative analysis. It is concluded that the new formula is more similar to the existing formula. In practice,it has certain reference values for the practical application of the project.
作者
黄朝煊
HUANG Chao-xuan(Zhejiang Design Institute of Water Conservancy and Hydroelectric Power,Hangzhou 310002,Zhejiang Province,China)
出处
《中国农村水利水电》
北大核心
2019年第1期127-131,136,共6页
China Rural Water and Hydropower
基金
浙江省基础公益研究计划项目(LGF18E090004)
浙江省水利厅科技计划项目(RC1701)
浙江省水利水电勘测设计院科标业项目资助(B1609)
关键词
软土地基处理
排水固结法
孔隙水压力
抗剪强度
沉降.
soft ground treatment
drainage consolidation method
pore water pressure
shear strength
settlement
