变化的地质条件对泰晤士河潮汐隧道掘进机性能的影响

IF 2 4区工程技术 Q3 ENGINEERING, GEOLOGICAL

Proceedings of the Institution of Civil Engineers-Geotechnical Engineering Pub Date : 2022-06-20 DOI:10.1680/jgeen.22.00060

T. Newman, Oscar Hueso Cuberos, Mikel Martinez Goirigolzarri

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引用次数: 1

摘要

一台直径8.8米的土压平衡隧道掘进机已被用于建造一段7.6公里的泰晤士河潮汐隧道，该隧道穿过英国伦敦市中心，位于巴特西和伯蒙德之间。兰贝斯背斜和伦敦桥断裂带两大地质构造使隧道工作面地质发生了重大变化。连续监测隧道掘进机的工作参数，如刀盘扭矩、推力和废石调理添加剂的注入。这导致了构造的识别，以及在Lambeth群上部地层中砂道的高频率。监测结果验证了施工前的地质模型，并在预定的干预期间对隧道工作面进行了检查，并对几个拦截井进行了地质测井，为隧道施工前的预测地面提供了宝贵的保证。

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Effects of changing geology on the performance of a Thames Tideway tunnel boring machine

An 8.8 m diameter earth pressure balance tunnel boring machine has been used to construct a 7.6 km section of the Thames Tideway Tunnel through central London, UK, between Battersea and Bermondsey. Two major geological structures: the Lambeth Anticline and the London Bridge Fault Zone have imposed significant changes in the tunnel face geology. The tunnel boring machine was continually monitored for operating parameters, such as cutterhead torque, thrust and injection of spoil conditioning additives. This led to the recognition of the structures, in addition to a high frequency of sand channels within the upper Lambeth Group strata. The monitoring led to validation of the preconstruction geological model and in conjunction with inspection of the tunnel face during scheduled interventions and geological logging of several interception shafts, has provided valuable assurances for the predicted ground ahead of tunnelling operations.

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来源期刊

Proceedings of the Institution of Civil Engineers-Geotechnical Engineering 工程技术-地球科学综合

CiteScore

4.40

自引率

4.50%

发文量

审稿时长

3 months

期刊介绍： Geotechnical Engineering provides a forum for the publication of high quality, topical and relevant technical papers covering all aspects of geotechnical research, design, construction and performance. The journal aims to be of interest to those civil, structural or geotechnical engineering practitioners wishing to develop a greater understanding of the influence of geotechnics on the built environment.