水力发电2024，Vol.50Issue(4)：95-101,107,8.
砂浆胶-水泥改良膨胀土试验研究
Experimental Study on Expansive Soil Improved By Polymer Mortar Glue-Cement
胡豹 1王保田 2周锐 1黄振清 1王东英 3张海霞1
作者信息
- 1. 河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210024
- 2. 河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210024||河海大学疏浚技术教育部工程研究中心,江苏 常州 213022||西藏农牧学院水利土木工程学院,西藏 林芝 860000
- 3. 宿迁市港航事业发展中心,江苏 宿迁 223800
- 折叠
摘要
Abstract
In order to improve the expansive soil of the channel from Suqian to Lianyungang,the medium expansive soil of 0.5-2 m below the surface is selected,and different proportions of polymer mortar glue and cement mixture are added to the soil.The physical and mechanical properties of the improved expansive soil are studied by direct shear test,expansion rate test,dry-wet cycle test and crack analysis.The tests show that,with the increase of mortar glue and cement incorporation and curing days,the cohesion and internal friction angle of expansive soil increase significantly,and the expansion rate decreases.The cracks of the improved expansive soil are obviously reduced,and will not increase with the increase of the number of dry and wet cycles.Therefore,the strength of the improved expansive soil is obviously improved and the expansion and contraction are obviously reduced.The effect of mortar glue and cement to improve expansive soil is remarkable,and the cost is low.It is superior to other improvement methods and can meet the engineering needs.关键词
中等膨胀土/砂浆胶/水泥/击实试验/直剪试验/干湿循环试验/裂隙分析Key words
medium expansive soil/mortar glue/cement/compaction test/direct shear test/dry-wet cycle test/crack analysis分类
通用工业技术引用本文复制引用
胡豹,王保田,周锐,黄振清,王东英,张海霞..砂浆胶-水泥改良膨胀土试验研究[J].水力发电,2024,50(4):95-101,107,8.
