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淤泥质土-砂混合软土的固结压缩试验研究
引用本文:邱模清,艾志伟,罗嗣海,邓通发. 淤泥质土-砂混合软土的固结压缩试验研究[J]. 南方冶金学院学报, 2014, 0(3): 23-28
作者姓名:邱模清  艾志伟  罗嗣海  邓通发
作者单位:[1]江西理工大学建筑与测绘工程学院,江西赣州341000 [2]广州大学土木工程学院,广州510006
基金项目:江西省交通厅科技项目(2012C0003,2012C0004)
摘    要:结合井睦高速公路工程中的山涧淤泥质土-砂混合软土,通过控制含砂量与含水率对该混合土做一系列固结压缩试验,目的是研究含砂量与含水率对该混合软土压缩性的影响.试验研究表明:淤泥质土-砂混合土的压缩模量与含砂量成正相关关系,与含水率成负相关关系;在界限含砂量区间(50%~70%)内,抗压缩性明显提高,压缩模量增大,压缩系数减小;增加含砂量,压缩系数随之减小,增加含水率,压缩系数逐渐增大.

关 键 词:淤泥质土-砂混合软土  固结压缩试验  压缩模量  压缩系数

Study of the consolidation compression tests on the silt-sand mixed soft soil
QIU Mo-qing,AI Zhi-wei,LUO Si-hai,DENG Tong-fa. Study of the consolidation compression tests on the silt-sand mixed soft soil[J]. Journal of Southern Institute of Metallurgy, 2014, 0(3): 23-28
Authors:QIU Mo-qing  AI Zhi-wei  LUO Si-hai  DENG Tong-fa
Affiliation:1.Sehool of Architectural and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China; 2. School of Civil Engineering, Guangzhou University, Guangzhou 510006, China )
Abstract:A lot of tests of consolidation compression by controlling the sand content and the moisture content have been done for the silt-sand mixed soft soil from the mountain where Jing-mu expressway project is building, with the purpose of studying the effects of these two factors on the soil compressibility. The test results show that the compression modulus of it has a positive correlation to the sand content and a negative correlation to the moisture content; anti-compression has improved significantly in the sand content range (50 % ~70 %), the compression modulus increased, and the compression coefficient decreased; the compression coefficient is decreasing with the sand content increasing yet increasing with the moisture content increasing.
Keywords:sih-sand mixed soft soil  consolidation compression test  compression modulus  compressioncoefficient
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