工程地质学报2011，Vol.19Issue(1)：116-121,6.
改良黄土强度特性与工程处置试验研究
EXPERIMENTAL RESEARCH ON STRENGTH CHARACTERISTICS AND ENGINEERING TREATMENT OF IMPROVED LEOSS SOIL
摘要
Abstract
According to the typical loess in Shuozhou in Shanxi province, tests on its compaction characteristics,shear strength characteristics and disintegration are carried out. The original loess and three improved loess soils are used in the tests. The three loess soils are improved with lime and fly-ash,lime and cement,cement and fly-ash,respectively. The best improved soil plan is brought out. The improve soil is used in the filling engineering of elevator shaft in a pit. The result of numerical simulation indicates that it is feasible to use the improved loess of lime and fly-ash in the engineering project. The test results indicate that the compact hybrid structure is formed by fly ash and loess. The compact hybrid structure is formed by fly ash and loess. The activity of fly ash is activated as a result of the lime mixing. A series of hydration reaction of silicates prompt the intensity of loess and the physical and mechanical properties of improved loess are improved noticeably.关键词
黄土改良/击实特性/抗剪强度Key words
Loess/Improvement/Compaction characteristics/Shearing strength分类
建筑与水利引用本文复制引用
李志清,余文龙,范林峰,付乐,胡瑞林,林杜军,王艳萍..改良黄土强度特性与工程处置试验研究[J].工程地质学报,2011,19(1):116-121,6.基金项目
河海大学岩土力学与堤坝工程教育部重点实验室开放基金项目 (GH200802)、同济大学岩土及地下工程教育部重点实验室开放基金项目(KLE-TJGE-B0903)、中国科学院工程地质力学重点实验室开放基金项目(2008).国家科技支撑计划项目(2008BAK50B04-3 )、中国科学院知识创新工程青年人才领域前沿项目(2009). （GH200802）
