| 排桩冻结法深基坑施工监测与反馈分析 |
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| 引用本文： | 袁宝远,赵燕容,朱旭芬,陈艳国,李爱国.排桩冻结法深基坑施工监测与反馈分析[J].工程地质学报(英文版),2005,13(4):533-537. |
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| 作者姓名： | 袁宝远 赵燕容 朱旭芬 陈艳国 李爱国 |
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| 作者单位： | 河海大学地质及岩土工程系,南京,210098;河海大学地质及岩土工程系,南京,210098;河海大学地质及岩土工程系,南京,210098;河海大学地质及岩土工程系,南京,210098;河海大学地质及岩土工程系,南京,210098 |
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| 摘 要： | 对于润扬大桥南锚碇排桩冻结法深大基坑,冻结作用使基坑的受力过程变得更为复杂,根据排桩冻结法基坑结构和场地工程地质条件,建立了大型安全监测系统。本文介绍了润扬大桥南锚碇场地工程地质条件、排桩冻结法基坑的结构和南锚碇基坑监测方案、分析了南锚排桩冻结法深基坑各项监测数据的变化规律,包括侧向土压力、内支撑轴力、排桩钢筋应力和排桩水平位移随时间变化规律,并基于施工监测进行了反馈分析,保障了南锚碇排桩冻结法深基坑的安全与稳定。监测结果分析表明,排桩冻结法是基坑工程的一种可行的施工工法,润扬大桥南锚碇排桩冻结法深大基坑的成功实践为今后类似工程的建设积累了宝贵经验。
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| 关 键 词： | 排桩冻结法 基坑 监测 反馈 冻胀力 |
| 收稿时间： | 2005-08-15 |
| 修稿时间： | 2005-11-07 |
CONSTRUCTION MONITORING AND FEEDBACK ANALYSIS OF A DEEP FOUNDATION PIT WITH FROZEN GROUND AND PILE-SUPPORT |
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| YUAN Baoyuan,ZHAO Yanrong,ZHU Xufen,CHENG Yanguo,LI Aiguo.CONSTRUCTION MONITORING AND FEEDBACK ANALYSIS OF A DEEP FOUNDATION PIT WITH FROZEN GROUND AND PILE-SUPPORT[J].Journal of Engineering Geology,2005,13(4):533-537. |
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| Authors: | YUAN Baoyuan ZHAO Yanrong ZHU Xufen CHENG Yanguo LI Aiguo |
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| Institution: | Department of Geological and Geotechnical Engineering,Hohai University,Nanjing 210098 |
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| Abstract: | Frozen ground made a complex mechanical state of the pile - supported foundation pit of the Runyang Bridge. To assure its stability, a large safety monitoring system was established based on structure characteristics of frozen ground and pile -support deep foundation pit, and the engineering geological condition of site. This paper presents monitoring data including lateral earth pressure, inner support forces, stresses and displacements, and their analysis. A feedback analysis was made based on the monitoring data.. The monitor result indicated the ground freezing and pile - support method is viable for deep foundation pit, and the experience was backlog for construction of similar engineering aftertime. |
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| Keywords: | Frozen ground and pile- support Deep foundation pit Monitoring Feedback Force of frozen expansion |
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