| 加筋带布置对地基承载力的影响 |
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| 引用本文： | 黄仙枝,白晓红.加筋带布置对地基承载力的影响[J].岩土力学,2004,25(9):1475-1479. |
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| 作者姓名： | 黄仙枝 白晓红 |
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| 作者单位： | 1. 太原理工大学,建筑与环境工程学院,山西,太原,030024;山西大学,工程学院,山西,太原,030013
2. 太原理工大学,建筑与环境工程学院,山西,太原,030024 |
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| 基金项目： | 山西省归国留学生资助项目(编号:2002-18)，山西省自然科学基金委资助项目(编号:20041061) |
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| 摘 要： | 现场原位载荷试验表明：素碎石薄垫层(Z/B=0.2)地基经土工带加筋后，能提高地基承载力。通过承载力比BCR分析加筋层数Ⅳ、加筋首层间距U、加筋带间距H、加筋线密度LDR对地基承载力的影响，并对极限稳定时筋带的设计拉力进行了讨论，提出用筋带的设计强度预估加筋地基极限承载力。
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| 关 键 词： | 现场试验 土工带加筋碎石垫层 筋材布置 承载力比 筋带设计拉力 |
| 文章编号： | 1000-7598-(2004)09-1475-05 |
| 修稿时间： | 2003年6月12日 |
Influence of geobelt arranges on bearing capacity of foundation |
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| HUANG Xian-Zhi ,BAI Xiao-Hong.Influence of geobelt arranges on bearing capacity of foundation[J].Rock and Soil Mechanics,2004,25(9):1475-1479. |
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| Authors: | HUANG Xian-Zhi BAI Xiao-Hong |
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| Institution: | HUANG Xian-Zhi 1,2,BAI Xiao-Hong1 |
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| Abstract: | Load tests in site have been carried out for foundation reinforced with geobelt. It shows that compared with the unreinforced foundation the bearing capacity of reinforced foundation is increased by geobelt reinforced gravel layers (Z/B=0.2)supported on soft soil. Through analyzing the bearing capacity ratio (BCR), the bearing capacity of geosynthetic reinforced foundation is influenced by following factors: numbers (N) of geosynthetic layers, distance from footing bottom to top reinforcement layer (U), distance of geosynthetics (H), the linear density of reinforcement (LDR). The design stress of geosynthetic is discussed for the ultimate state of foundation. The ultimate bearing-capacity of geobelt reinforced crushed gravel foundation is predicted by geobelt design strength. |
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| Keywords: | tests in site geobelt reinforced gravel layer geosynthetic arranges bearing capacity ratio geobelt design stress |
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