| 新建城区大面积填土地基基础方案分析 |
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| 引用本文： | 吴旭君,范黎明,殷其雷.新建城区大面积填土地基基础方案分析[J].吉林大学学报(地球科学版),2008,38(2):290-292. |
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| 作者姓名： | 吴旭君 范黎明 殷其雷 |
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| 作者单位： | 吉林大学,建设工程学院,长春,130026;中国京冶工程技术有限公司,北京,100088;吉林大学,建设工程学院,长春,130026 |
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| 摘 要： | 某新建城区拟修建于大面积填土上,针对该新建城区的复杂工程地质条件,对天然地基、复合地基等地基基础方案的经济、技术、工期等综合分析和比较,最终采用CFG桩复合地基方案对该区独立基础和条形基础进行计算并设计布桩。CFG桩复合地基是CFG桩、桩间土、碎石垫层联合构成的复合地基,其桩身质量好,承载力可达350 kPa以上。当最大柱荷载小于或等于4000 kN或土层中有强透水砂卵石层时,均宜采用独立柱基下CFG桩复合地基。
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| 关 键 词： | 填土 复合地基 CFG桩 |
| 文章编号： | 1671-5888(2008)02-0290-03 |
| 修稿时间： | 2007年11月29 |
Analysis of Foundation Scheme on Large-Scale Backfill Soil in the Proposed Urban Area |
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| WU Xu-jun,FAN Li-ming,YIN Qi-lei.Analysis of Foundation Scheme on Large-Scale Backfill Soil in the Proposed Urban Area[J].Journal of Jilin Unviersity:Earth Science Edition,2008,38(2):290-292. |
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| Authors: | WU Xu-jun FAN Li-ming YIN Qi-lei |
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| Abstract: | A new city zone will be built on a large area of backfill,and according to the complex engineering geology conditions,the CFG pile composite foundation scheme was finally selected.The isolated foundation and strip foundation were calculated and piles were designed after comprehensive analysis and comparison on economy,technique and construction period of various approaches like natural foundation and compound foundation etc.The CFG pile composite foundation is a kind of composite foundation that consists of CFG pile,soil among the piles and broken stone underlay.The CFG pile body is of good quality,short construction period,fast construction speed and big bearing capacity which can be more than 350 kPa.The CFG pile composite foundation should be adopted,if the maximum load of a pile is not more than 4 000 kN or there is a sand and gravel bed which is of high hydraulic permeability in the soil stratum. |
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| Keywords: | backfill composite foundation CFG pile |
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