|
|||||
|
|
| 排水砂井在某高等级公路软基处理中的应用效果分析 | |
| 引用本文： | 崔伯华,吴然. 排水砂井在某高等级公路软基处理中的应用效果分析[J]. 工程勘察, 2005, 0(3): 38-41,7 |
| 作者姓名： | 崔伯华 吴然 |
| 作者单位： | 南京水利科学研究院,南京,210024;南京市招商局物业管理有限公司,南京,210005 |
| 摘 要： | 本文全面介绍了华南地区某高等级公路采用排水砂井堆载预压法加固软基的实际效果,现场应力应变测试资料分析表明:施工期至预压期地基平均固结度达80 %强;土体抗剪强度由天然地基的12 2kPa提高到加固后的2 4 0kPa ,加固后的土体强度增长近一倍;预估经加固处理后的路基工后沉降在30cm内,能满足一般高等级公路工后沉降量的要求。本文的监测成果对类似工程具有借鉴意义。 |
| 关 键 词： | 排水砂井 软基 沉降 位移 固结度 抗剪强度 |
Analysis on the Effect of Soft Soil Treatment by Using Sand Drains for a High-grade Highway |
|
| Cui Bohua et al.. Analysis on the Effect of Soft Soil Treatment by Using Sand Drains for a High-grade Highway[J]. Geotechnical Investigation & Surveying, 2005, 0(3): 38-41,7 | |
| Authors: | Cui Bohua et al. |
| Affiliation: | Cui Bohua et al. |
| Abstract: | The results from the treatment of soft soil by using the sand drains and heap preloading for a high grade highway in South East China are fully introduced.Through the analysis on the stress strain testing data for the soil,it is shown that the average consolidation degree of the soil reaches 80% in the construction stage and preloading stage,that the shear strength of the treated soil changes from the original value 12 2kPa to 24 0kPa.It is predicted that the settlement in the post construction stage is less than 30cm,which can meet the requirement for the common high grade highway.The said testing results can be used as a reference for the similar project. |
| Keywords: | sand drain soft soil settlement displacement consolidation degree shear strength |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |