低路堤下长江漫滩相结构性软土的固结特性  

Consolidation Characteristics of Yangtze River Backswamp Structural Soft Soil under Low Embankment

作　　者：丁红慧[1] 

机构地区：[1]东南大学交通学院,江苏南京210096

出　　处：《山东交通科技》2008年第1期28-31,34,共5页

摘　　要：针对沿江漫滩相结构性软土,依托江北沿江高等级公路(南京段)试验段II,通过一系列室内物理、力学试验和CPTU原位测试,探讨了该区域土层的基本特性,试验结果表明,长江漫滩相天然沉积软土具有较强的结构性。同时揭示了在低路堤结构下,试验场区软土层平均固结系数与平均渗透系数较大,排水固结速度较快,地基处理可以采用浅层处置方案。Based on the test road section II of the highway along the north bank of Yangtze River in Nanjing,basic characteristics of soil in this area were discussed through a series of laboratory physico-mechanical tests and piezocone penetration in-situ test,the above results indicated that the Yangtze River backswamp soils had strong resistance of soil structure.Another conclusion could be drawn that large permeability and coefficient of consolidation increased the consolidation speed in this test road section,shallow treatment method can be applied to the improvement of highway soft ground.

关 键 词：固结特性 低路堤 土的结构性 孔压静力触探 

分 类 号：U416.101[交通运输工程—道路与铁道工程]