| 曲线段桥梁使用主动托换法洞内截桩技术 |
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| 引用本文： | 李春剑,杨勇,李锋,代小勇.曲线段桥梁使用主动托换法洞内截桩技术[J].隧道建设,2008,28(4):489-493. |
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| 作者姓名： | 李春剑 杨勇 李锋 代小勇 |
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| 作者单位： | 1.中铁隧道集团有限公司科学技术研究所2.中铁隧道集团北京分公司 |
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| 摘 要： | 介绍广州地铁二、八号线桩基主动托换洞内截桩的施工方案。主动托换洞内截桩是桩基托换的一种新做法，吸收了被动桩基托换的部分施工方法，解决了运营中曲线桥梁托换时水平力很难平衡的难题；阐述在动荷载作用下进行桩基托换的施工方法和托换过程中桥梁结构的监控量测；为在复杂结构和地质条件下进行桩基托换积累经验。
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| 关 键 词： | 桩基托换曲线段桥梁隧道监控量测 |
| 收稿时间： | 2008-05-04 |
| 修稿时间： | 2008-07-15 |
Technology for Cutting Piles inside Tunnel in Active Underpinning of Pile Foundations of Curvilinear Bridge |
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| LI Chunjian,YANG Yong,LI Feng,DAI Xiaoyong.Technology for Cutting Piles inside Tunnel in Active Underpinning of Pile Foundations of Curvilinear Bridge[J].Tunnel Construction,2008,28(4):489-493. |
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| Authors: | LI Chunjian YANG Yong LI Feng DAI Xiaoyong |
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| Institution: | 1.Scientific Research Institute under China Railway Tunnel Croup Co., Ltd.2. Beijing Branch of China Railway Tunnel Croup Co., Ltd. |
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| Abstract: | The construction scheme for the cutting of the piles inside tunnel in the active pile foundation underpinning on Line 2 and Line 8 of Guangzhou Metro is presented.Cutting the piles inside the tunnel in active underpinning is a new approach of pile foundation underpinning,which absorbs some part of the construction methods of the passive pile foundation underpinning.Due to the new underpinning approach,the problem that it is very difficult to balance the horizontal forces during the underpinning of the opera... |
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| Keywords: | pile foundation underpinning curvilinear bridge tunnel site monitoring |
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