摘要
膨胀土因其特殊的工程特性,对工程危害大,对膨胀土地基进行换填是主要处理措施之一。南水北调中线工程总干渠涉及膨胀土的渠段较长,达400 km。为确保渠道边坡稳定,在总干渠南阳膨胀土渠段进行水泥改性土现场换填试验。从土料破碎、拌和加水量控制、拌和方法比较、碾压施工等环节研究了水泥改性土换填施工工艺与特性,得到的控制参数可供施工参考。
The expansive soil is harmful to construction due to its special engineering characters,and replacing the expansive soil is a major measure for foundation treatment.The expansive-soli canal section of Middle Route Project of S-N Water Diversion involved is about 400 km long.In order to guarantee the stability of canal slope,field test for expansive soil replaced by modified cement-soil was conducted at Nanyang section of the main canal.The cement-soil replacement construction technology was studied in the aspects of soil breaking,water supplement control for mixing,mixing method comparison,rolling compacted construction and so on,and construction control parameters were obtained.
出处
《人民长江》
北大核心
2010年第16期81-83,共3页
Yangtze River
关键词
碎土
拌和
均方差
碾压
南水北调中线一期工程
soil breaking
mixing
mean square deviation
rolling compacted
Phase I Works of Middle Route Project of S-N Water Diversion
