| 海南东环铁路美兰机场明挖隧道试验段施工监测与分析 |
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| 引用本文： | 葛立新. 海南东环铁路美兰机场明挖隧道试验段施工监测与分析[J]. 铁道建筑技术, 2009, 0(5): 133-137 |
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| 作者姓名： | 葛立新 |
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| 作者单位： | 中铁十七局集团有限公司,太原,030006 |
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| 摘 要： | 根据海南东环铁路美兰机场明挖隧道施工要求，拟定了监测方案，通过监测获得了围护结构变形与内力变化的一些规律，主要包括桩身最大变形及位置、锚索拉力突变、钢支撑轴力变化等，对基坑围护结构设计及施工参数选择有指导作用。
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| 关 键 词： | 明挖隧道 锚索拉力 围护桩变形 钢支撑轴力 施工监测 |
Analysis by Field Measurement on a Cut and Cover Railway Tunnel Excavation, near Meilan Airfield in Haimm |
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| Ge Lixin. Analysis by Field Measurement on a Cut and Cover Railway Tunnel Excavation, near Meilan Airfield in Haimm[J]. Railway Construction Technology, 2009, 0(5): 133-137 |
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| Authors: | Ge Lixin |
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| Affiliation: | Ge Lixin (China Railway 17^th Bureau Group Co. Ltd, , Taiyuan 030006, China) |
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| Abstract: | Based on the construction control requirements of the cut and cover railway tunnel excavation near Meilan Airfield in Hainan, a field measurement scheme is studied out. Varied laws on deflections and internal forces of excavation reraining and protecting, including maximum deflection of piles and its location, anchor tension saltation, steel tube bracing axial pressure varieties, and etc, are obtained. These laws will play a guidance role in the design and the selection of construction parameters of excavation retaining and protecting. |
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| Keywords: | cut and cover railway tunnel anchor tension deflection of piles steel tube bracing axial pressure construction field measurement |
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