| 飞机荷载引起的层状地基附加应力及对下穿#br#
隧道的影响范围研究 |
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| 引用本文： | 王志新,王波,李昊,付艳斌,温俊昇.飞机荷载引起的层状地基附加应力及对下穿#br#
隧道的影响范围研究[J].土木工程学报,2020,53(Z1):258. |
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| 作者姓名： | 王志新 王波 李昊 付艳斌 温俊昇 |
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| 作者单位： | 1. 中铁十六局集团北京轨道交通工程建设有限公司，北京 101100；2. 深圳大学土木与交通工程学院，深圳 518060；
3. 深圳大学滨海城市韧性基础设施教育部重点实验室，深圳 518060 |
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| 摘 要： | 目前，国内外下穿机场飞行区的隧道工程案例较少，对于机场飞行区下穿隧道工程的相关设计理论比较欠缺。鉴于此依托穗莞深城际铁路SHZ-9标盾构隧道下穿越深圳宝安国际机场工程，利用布辛奈斯克解和弹性层状理论，推导了飞机荷载作用下土体任意深度处的附加应力公式；基于推导的公式利用Matlab分析了空客A380、波音B-747、B-777三种飞机荷载产生的附加应力值规律，确定了三种大飞机最大竖向应力作用点位置；通过分析三种类型大飞机在附加应力最大值点沿不同方向的变化规律，得到了三种大飞机荷载在不同覆土深度下对飞行区盾构隧道影响范围的计算公式，具有重要的工程指导意义。
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| 关 键 词： | 飞机荷载 附加应力 弹性层状理论 盾构隧道 |
The additional stress of layered foundation caused by aircraft load and its #br#
influence scope on the underpass tunnel |
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| Wang Zhixin Wang Bo Li Hao Fu Yanbin Wen Junsheng.The additional stress of layered foundation caused by aircraft load and its #br#
influence scope on the underpass tunnel[J].China Civil Engineering Journal,2020,53(Z1):258. |
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| Authors: | Wang Zhixin Wang Bo Li Hao Fu Yanbin Wen Junsheng |
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| Affiliation: | 1. China Railway 16th Bureau Group Beijing Metro Engineering Construction Co. ，Ltd. , Beijing 101100，China；
2. College of civil and Transportation Engineering, Shenzhen University，Shenzhen 518060，China；
3. Key Laboratory of Coastal Urban Resilient Infrastructures (MOE)，Shenzhen University，Shenzhen 518060，China |
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| Abstract: | At present, there are few cases of Underpass tunnel engineering at home and abroad, and there is a lack of relevant design theory for undercrossing airport airfield. In view of this, based on the project of Shenzhen Bao′an International Airport under which is the shield tunnel of SHZ-9 bid of Guangzhou-Shenzhen inter-city railway, based on the Boussinesq solution and elastic layered theory, the additional stress formula of soil at any depth under aircraft load is derived; based on the derived formula, the law of additional stress value generated by three aircraft loads, Airbus A380, Boeing B-747 and B-777, is analyzed by Matlab, and the position of the maximum vertical stress acting point of three large aircraft is determined; by analyzing the change law at the maximum additional stress point of the three types of large aircrafts in different directions, it is obtained the calculation formulas of the influence range of three large aircraft loads on the shield tunnel in the flight zone at different depth, which has important engineering guiding significance. |
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| Keywords: | aircraft load additional stress elastic layered theory shield tunnel |
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