淤泥质土一维固结试验研究  

Study on One-dimensional Consolidation Test of Mucky Soil

作　　者：陈伟 Chen Wei(Guangdong Zaitian Detection Technology Service Co.Ltd.,Guangzhou,Guangdong 510535)

机构地区：[1]广东在田检测技术服务有限公司,广东广州510535

出　　处：《江西建材》2024年第8期38-40,共3页

摘　　要：为明确淤泥质土一维固结规律,文中采用试验土力学的研究方式,对某工程中的原状淤泥质土的一维变形固结规律进行深入研究。研究结果表明,本工程中的时间-应变曲线可根据应变量变化率分为突变阶段、过渡阶段和稳定阶段,同时发现主固结量占总固结量的比例随着原状土样深度的增加而增加;根据e-p曲线可知,埋藏较深的先期沉积土体排水条件较差,固结速度较慢,后期沉积土体在压力作用下,排水速度明显增加。文中研究内容进一步明确了淤泥质土一维固结规律,对提高工程地基处理质量具有一定现实意义。In order to clarify the one-dimensional consolidation properties of mucky soil,this paper uses the research method of experimental soil mechanics to study the one-dimensional deformation and consolidation law of undisturbed mucky soil samples in a project.The results show that the time-strain curve in this project can be divided into three stages:mutation stage,transition stage and stable stage according to the change rate of strain,and it is found that the proportion of the main consolidation amount to the total consolidation amount increases with the increase of the depth of the undisturbed soil sample.At the same time,according to the e-p curve,it can be seen that the drainage conditions of the early sedimentary soil with deep burial are poor,and the consolidation speed is slow.Under the action of pressure,the drainage speed of the later sedimentary soil increases significantly.The research content of this paper further clarifies the one-dimensional consolidation law of muddy soil and has certain practical significance for improving the quality of engineering foundation treatment.

关 键 词：淤泥质土 一维 压缩固结 试验研究 

分 类 号：TU447[建筑科学—岩土工程]