摘要
对广东珠海某大桥地基软土进行一系列一维次固结试验,通过分析土体在不同含水率及加卸载条件下次固结系数的变化规律,研究了珠海地基软土的次固结特性。结果表明:软土在次固结过程中,随着固结围压的增大,次固结系数逐渐增大;软土次固结过程受土体含水率的影响;卸载再加载后土体次固结系数呈减小趋势。试验及分析结果对工程实际具有一定的指导意义。
The one dimensional secondary consolidation properties of the soft soil underneath a bridge site in Zhuhai,Guangdong Province are laboratory investigated.The coefficient of the secondary consolidation were tested under various moisture contents and loading conditions.The results indicate that the secondary consolidation coefficient increases with the increase of the confining pressure.The secondary consolidation process is affected by the moisture content of the soft soils.The secondary consolidation decreases in the reloading process after the unloading.
出处
《土工基础》
2016年第1期102-105,共4页
Soil Engineering and Foundation
关键词
软土
次固结系数
含水率
卸载再加载
Soft Soil
Coefficient of Secondary Consolidation
Moisture Contents
Unloading and Reloadings
