新吹填淤泥地基浅层处理试验研究  

Experimental study on surface-layer improvement of soft foundation filled by newly dreged silt

作　　者：应舒 高长胜[2] 黄家青[2] 

机构地区：[1]浙江省温州经济技术开发区基础设施投资有限公司,浙江温州325025 [2]南京水利科学研究院,江苏南京210029

出　　处：《岩土工程学报》2010年第12期1956-1960,共5页Chinese Journal of Geotechnical Engineering

基　　金：江苏省自然科学基金项目(BK2009052);中央级公益性科研院所基本科研业务费专项资金重点项目(Y300901)

摘　　要：新吹填淤泥具有超软、超含水率等不利的工程特性,使得其对后期的地基处理提出了很高的要求,结合某新吹填淤泥工程,对取消排水垫层后的浅层地基处理进行了现场试验研究。研究结果表明,在取消排水垫层后,采用浅层处理方法对新吹填淤泥进行处理,可使处理深度范围内的吹填淤泥强度得到明显增长,使新吹填淤泥表层在较短时间内形成了一个很好的硬壳层。The newly dredged silt has disadvantageous engineering properties of ultra-soft character and excess water content.It results in highrequrirements for post soft-ground treatment.Based on a soft foundation filled by newly dredged silt,field tests on surface-layer improvement technology without drainage cushion are performed.The test results show that the favorable effect is gained in a certain range when the newly dreged silt is treated by means of the surface-layer improvement technology without drainage cushion.The water content decreases substantially and the bearing capacity increases.A satisfactory overlying crust will be formed in short time on the surface of the newly dredged silt.

关 键 词：吹填淤泥 软基处理 浅层加固 真空预压 

分 类 号：TU753.8[建筑科学—建筑技术科学]