| 双基坑大直径双环梁支护体系监测与分析 |
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| 引用本文： | 姜忻良,孙良涛,宗金辉.双基坑大直径双环梁支护体系监测与分析[J].岩土力学,2006,27(7):1204-1208. |
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| 作者姓名： | 姜忻良 孙良涛 宗金辉 |
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| 作者单位： | 天津大学 土木工程系，天津 300072 |
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| 摘 要： | 双基坑大直径双环梁支护体系是一种新型的基坑支护结构形式。通过对天津铜锣湾广场基坑工程中的环梁支撑内力和坑周土体水平位移的现场施工监测和数据结果分析，讨论了基坑开挖过程中环梁结构受力的特点以及对周围环境的影响，得到了基坑周边土体水平位移的变化规律，为考虑施工因素的环梁结构设计提供了依据。
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| 关 键 词： | 双基坑 双环梁支护体系 监测 支撑内力 土体水平位移 |
| 文章编号： | 1000-7598-（2006）07-1204-05 |
| 收稿时间： | 2004-10-31 |
| 修稿时间： | 2004-12-31 |
Construction monitoring and analysis of double large-diameter annular arched girders support system in double foundation pit excavation |
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| JIANG Xin-liang,SUN Liang-tao,ZONG Jin-hui.Construction monitoring and analysis of double large-diameter annular arched girders support system in double foundation pit excavation[J].Rock and Soil Mechanics,2006,27(7):1204-1208. |
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| Authors: | JIANG Xin-liang SUN Liang-tao ZONG Jin-hui |
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| Institution: | Department of Civil Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | A new support system is applied to excavation of double foundation pits. In this system, double large-diameter annular arched girders structural system is used. By construction monitoring in Tianjin Cause Bay Plaza, data about internal force of supporting system and horizontal displacement of soil are obtained. This article analyzes these data and also discusses the characteristic of internal force changing in annular arched girders and influence on environment in the course of excavation. By these analyses, the law of horizontal displacement in ambient soil is drawn; and the measures considering the construction factors can be adopted for the annular arched-girder structure design. |
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| Keywords: | double foundation pit double annular arched-girder support system construction monitoring supporting structure internal force horizontal displacement of soil |
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