Influence and the Control of Shield Tunneling on Ancient Tower Vibration

IF 1.5 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Advances in Civil Engineering Pub Date : 2024-02-05 DOI:10.1155/2024/9922218

Xu Liang, Jian Xu, Yapeng Zhang, Xinquan Gao, Xuetao Zhou, Zonghao Yuan, Min Zhang, Jian Wu, Long Liu

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引用次数: 0

Abstract

In recent years, to effectively mitigate the issue of urban traffic congestion, tunnels have become widely used new type of road. However, when the soil layer is excavated and disturbed, the resulting vibration affects the safety of the buildings above it, especially for ancient buildings that are very sensitive to vibrations. Taking the White Tower in Hangzhou as an example, in this paper, the vibration response propagation of large-diameter shield tunnel excavation to adjacent ancient towers is studied through field measurements. The vibration response of the unexcavated south line tunnel is predicted by using 3D numerical analysis software, and the optimal construction parameters are obtained. The study found that the frequency domain component of the White Tower bedrock vibration caused by shield tunneling is mainly 5–20 Hz, and the vibration response attenuates significantly beyond 40 m. Further, reducing the propulsive force can reduce the vibration response of the White Tower; therefore, controlling the propulsion and reducing the tunneling velocity can reduce the vibration response.

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盾构掘进对古塔振动的影响与控制

近年来，为有效缓解城市交通拥堵问题，隧道已成为广泛应用的新型道路。然而，当土层被开挖和扰动时，所产生的振动会影响上部建筑物的安全，尤其是对振动非常敏感的古建筑。本文以杭州白塔为例，通过实地测量研究了大直径盾构隧道开挖对相邻古塔的振动响应传播。利用三维数值分析软件预测了未开挖南线隧道的振动响应，并得出了最优施工参数。研究发现，盾构掘进引起的白塔基岩振动的频域分量主要为 5-20 Hz，超过 40 米后振动响应明显衰减。此外，降低推进力可减轻白塔的振动响应；因此，控制推进力和降低掘进速度可减轻振动响应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Civil Engineering Engineering-Civil and Structural Engineering

CiteScore

4.00

自引率

5.60%

发文量

612

审稿时长

15 weeks

期刊介绍： Advances in Civil Engineering publishes papers in all areas of civil engineering. The journal welcomes submissions across a range of disciplines, and publishes both theoretical and practical studies. Contributions from academia and from industry are equally encouraged. Subject areas include (but are by no means limited to): -Structural mechanics and engineering- Structural design and construction management- Structural analysis and computational mechanics- Construction technology and implementation- Construction materials design and engineering- Highway and transport engineering- Bridge and tunnel engineering- Municipal and urban engineering- Coastal, harbour and offshore engineering-- Geotechnical and earthquake engineering Engineering for water, waste, energy, and environmental applications- Hydraulic engineering and fluid mechanics- Surveying, monitoring, and control systems in construction- Health and safety in a civil engineering setting. Advances in Civil Engineering also publishes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.