Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.aej.2012.05.002 |
| Geotechnical properties of Egyptian collapsible soils | |
| Gaaver, Khaled E. | |
| 通讯作者 | Gaaver, KE |
| 来源期刊 | ALEXANDRIA ENGINEERING JOURNAL
 |
| ISSN | 1110-0168 |
| EISSN | 2090-2670 |
| 出版年 | 2012 |
| 卷号 | 51期号:3页码:205-210 |
| 英文摘要 | The risk of constructing structures on collapsible soils presents significant challenges to geotechnical engineers due to sudden reduction in volume upon wetting. Identifying collapsible soils when encountered in the field and taking the needed precautions should substantially reduce the risk of such problems usually reported in buildings and highways. Collapsible soils are those unsaturated soils that can withstand relatively high pressure without showing significant change in volume, however upon wetting; they are susceptible to a large and sudden reduction in volume. Collapsible soils cover significant areas around the world. In Egypt, collapsible soils were observed within the northern portion of the western desert including Borg El-Arab region, and around the city of Cairo in Sixof- October plateau, and Tenth-of-Ramadan city. Settlements associated with development on untreated collapsible soils usually lead to expensive repairs. One method for treating collapsible soils is to densify their structure by compaction. The ongoing study presents the effect of compaction on the geotechnical properties of the collapsible soils. Undisturbed block samples were recovered from test pits at four sites in Borg El-Arab district, located at about 20 km west of the city of Alexandria, Egypt. The samples were tested in both unsoaked and soaked conditions. Influence of water inundation on the geotechnical properties of collapsible soils was demonstrated. A comparative study between natural undisturbed and compacted samples of collapsible soils was performed. An attempt was made to relate the collapse potential to the initial moisture content. An empirical correlation between California Bearing Ratio of the compacted collapsible soils and liquid limit was adopted. The presented simple relationships should enable the geotechnical engineers to estimate the complex parameters of collapsible soils using simple laboratory tests with a reasonable accuracy. (C) 2012 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V. All rights reserved. |
| 英文关键词 | Collapsible soils Compaction Water Collapsible potential |
| 类型 | Article |
| 语种 | 英语 |
| 开放获取类型 | DOAJ Gold |
| 收录类别 | ESCI |
| WOS记录号 | WOS:000216751700005 |
| WOS类目 | Engineering, Multidisciplinary |
| WOS研究方向 | Engineering |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/330023 |
| 作者单位 | [Gaaver, Khaled E.] Univ Alexandria, Fac Engn, Struct Engn Dept, Alexandria, Egypt |
| 推荐引用方式 GB/T 7714 | Gaaver, Khaled E.. Geotechnical properties of Egyptian collapsible soils[J],2012,51(3):205-210. |
| APA | Gaaver, Khaled E..(2012).Geotechnical properties of Egyptian collapsible soils.ALEXANDRIA ENGINEERING JOURNAL,51(3),205-210. |
| MLA | Gaaver, Khaled E.."Geotechnical properties of Egyptian collapsible soils".ALEXANDRIA ENGINEERING JOURNAL 51.3(2012):205-210. |
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