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| 水泥土搅拌桩复合地基的试验和数值模拟分析 | |
| 引用本文： | 张伟丽,蔡健,林奕禧,黄良机. 水泥土搅拌桩复合地基的试验和数值模拟分析[J]. 地质科技情报, 2009, 28(6) |
| 作者姓名： | 张伟丽 蔡健 林奕禧 黄良机 |
| 作者单位： | 1. 中国地质大学岩土钻掘与防护教育部工程研究中心,武汉,430074;华南理工大学,广州,510641 2. 华南理工大学,广州,510641 3. 珠海市建设工程质量监督检测站,广东,珠海,519015 |
| 基金项目： | 珠海市科技基金(PA200310064);;国家自然科学基金项目(50878087) |
| 摘 要： | 水泥土搅拌桩处理软土地基可以提高地基承载力并减小沉降量。针对珠海地区的淤泥质土,进行了4种垫层厚度的水泥土搅拌桩复合地基现场静载荷试验,并在现场试验的基础上采用FLAC3D对水泥土搅拌桩复合地基进行了数值模拟分析。将数值模拟得到的4种垫层厚度复合地基的沉降曲线与现场试验的沉降曲线进行了比较,两者基本吻合。采用此模型计算了不同桩径和桩距复合地基的承载力和沉降量,研究了桩径、桩距的改变对复合地基承载力和沉降量的影响,并对改变桩径和桩距两种方案进行了比较,为水泥土搅拌桩复合地基的设计提供了参考。 |
| 关 键 词： | 水泥土搅拌桩 复合地基 FLAC3D 垫层 桩径 桩距 |
Experimental and Numerical Simulation Study on Cement-Soil Pile Composite Foundation |
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| ZHANG Wei-li,CAI Jian,LIN Yi-xi,HUANG Liang-ji. Experimental and Numerical Simulation Study on Cement-Soil Pile Composite Foundation[J]. Geological Science and Technology Information, 2009, 28(6) | |
| Authors: | ZHANG Wei-li CAI Jian LIN Yi-xi HUANG Liang-ji |
| Affiliation: | 1.Engineering Research Center of Rock-Soil Drilling & Excavation and Protection of Ministry of Education;China University of Geosciences;Wuhan 430074;China;2.South China University ofTechnology;Guangzhou 510641;3.Zhuhai Municipal Construction Engineering QualitySupervision & Test Station;Zhuhai Guangdong 519015;China |
| Abstract: | Cement-soil piles composite foundation has been extensively used to enhance the bearing capacity and induce the settlement of the silty soil.With the silty soil collected in Zhuhai,four kinds of static load tests on cushion height of cement-soil piles composite foundation were carried out and discussed in this article.Numerical simulation analysis was performed on the composite foundation with FLAC3D based on the tests results.Then the simulation settlement curves of composite foundation with four kinds of ... |
| Keywords: | cement-soil pile composite foundation FLAC3D cushion pile diameter pile spacing |
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