碎石土强夯加固效果荷载试验分析

黄达; 金华辉; 吴雄伟

doi:10.3969/j.issn.0258-2724.2013.03.007

碎石土强夯加固效果荷载试验分析

doi: 10.3969/j.issn.0258-2724.2013.03.007

黄达^1,2,
金华辉^1,3,
吴雄伟³

基金项目:

教育部创新团队发展计划资助项目(IRT1045)

中央高校基本科研业务费重点项目(CDJZR12 20 55 01)

中国博士后科学基金特别资助项目(201003315)

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出版历程
- 收稿日期: 2012-08-30
- 刊出日期: 2013-06-25

Plate Load Test Investigation of Dynamic Compaction Effect of Gravel Soil

摘要

摘要: 为探讨碎石含量及其分布对强夯地基承载力和差异沉降的影响规律,采用平板荷载试验,对3种不同碎石含量强夯地基的加固效果进行了检测.结果表明:碎石土强夯地基具有较好的承载力,平均承载力均超过250 kPa;随碎石含量增加和分布不均匀性增强,地基承载力的不均匀性增强,差异沉降增大;对于碎石含量较高且分布不均的强夯地基,当荷载接近或达到地基承载力以后,将出现更大的差异沉降;对于重庆市开县某强夯地基,不同碎石含量可导致强夯地基的差异沉降量相差3~4倍.
- 强夯地基 /
- 碎石土 /
- 不均匀性 /
- 载荷试验 /
- 差异沉降
Abstract: In order to deeply probe into influences of gravel content and distribution on bearing capacity and differential settlement, 18 plate loading tests were carried out on 3 dynamic compaction foundations with different gravel contents. The research result shows that the dynamic compaction foundation of gravel soil has a better bearing capacity with a mean of above 250 kPa. The non-uniform bearing capacity and differential settlement of foundation are more obvious with the increase of gravel content and uneven distribution. For dynamic compaction foundation with a high gravel content and uneven distribution, great differential settlement occurs when load is close to or reaches at its bearing capacity. The differential settlement can be as large as 3 to 4 times because of the difference of grave content of a dynamic compaction foundation in Kai County in Chongqing.
- dynamic compaction foundation /
- gravel soil /
- non-uniformity /
- load test /
- differential settlement

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参考文献(15)

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文章访问数: 1107
HTML全文浏览量: 71
PDF下载量: 399
被引次数: 0

碎石土强夯加固效果荷载试验分析

doi: 10.3969/j.issn.0258-2724.2013.03.007

计量

出版历程

Plate Load Test Investigation of Dynamic Compaction Effect of Gravel Soil

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出版历程

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