| 卵石地层中CFG桩的设计及其施工技术 |
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| 引用本文： | 李开洋,薛倩冰,陈永前,李凤.卵石地层中CFG桩的设计及其施工技术[J].探矿工程,2014,41(7):62-64，69. |
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| 作者姓名： | 李开洋 薛倩冰 陈永前 李凤 |
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| 作者单位： | 中国地质大学〈北京〉工程技术学院,中国地质大学〈北京〉工程技术学院,中国地震局地壳应力研究所〈地壳动力学实验室〉,河北省地震局 |
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| 摘 要： | 某工程项目位于北京市门头沟区，场地内卵石、碎石地层层厚大，施工困难，选用CFG桩进行地基处理。考虑场地地层条件、施工设备、项目工期以及工程造价，按变形控制对CFG桩进行设计，同时根据场地条件及CFG桩特点制定了施工流程。对CFG桩施工中可能出现的问题，提出了相应的质量控制措施，如埋设护筒、选用合适的旋挖钻头等。
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| 关 键 词： | CFG桩 设计 变形控制 卵石地层 |
| 收稿时间： | 2014/2/26 0:00:00 |
| 修稿时间： | 2014/5/30 0:00:00 |
Design and Construction Technology of CFG Plie in Pebble Stratum |
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| LI Kai-yang,XUE Qian-bing,CHEN Yong-qian and LI Feng.Design and Construction Technology of CFG Plie in Pebble Stratum[J].Exploration Engineering(Drilling & Tunneling),2014,41(7):62-64，69. |
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| Authors: | LI Kai-yang XUE Qian-bing CHEN Yong-qian and LI Feng |
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| Institution: | School of Engineering and Technology, China University of Geosciences,School of Engineering and Technology, China University of Geosciences,Key Laboratory of Crustal Dynamics, Institute of Crustal Dynamics, China Earthquake Administration and Hebei Earthquake Administration |
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| Abstract: | The paper introduces an engineer project in Mentougou of Beijing, the construction was difficult because of the thick pebble and crushed stone layer in the site, CFG pile was selected for foundation treatment. In view of the formation conditions, construction equipments, project construction period and cost of the project, CFG pile was designed with deformation control and according to the site conditions and the characteristics of CFG pile, construction process was formulated. For the problems may arise in the CFG pile construction, the corresponding quality control measures are put forward, such as embedment of steel protective pipe and selection of appropriate rotary drilling bit. |
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| Keywords: | CFG pile design deformation control pebble stratum |
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