Use of a Line of Piles to Prevent Damages Induced by Tunnel Excavation

Bilotta, Emilio; Russo, Gianpiero

doi:10.1061/(asce)gt.1943-5606.0000426

Cited by 55 publications

(27 citation statements)

References 13 publications

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“…Furthermore, it was found that additional reinforcement measures are required before construction. For example, 29-m-length ⌀800@1000 mm isolation piles between the building and the metro tunnel need to be installed to form an isolation curtain to limit deformation of the soil mass behind the piles [47]. During construction, the monitoring of surface subsidence and building displacement should be strengthened.…”

Section: Implementation Effectsmentioning

confidence: 99%

Safety risk assessment of heritage buildings in metro construction based on SPA theory: a case study in Zhengzhou, China

Wang

Chang-ming²,

Tian

et al. 2020

Preprint

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While the urban rail transit systems have been developed rapidly, the nearby heritage buildings and historic sites are facing possible threats of unexpected damages. In particular, a rail project has a potential impact on numerous heritage buildings and sites in an old city. Thus, to better protect these heritage buildings and sites, it is crucial for decision-makers to be able to rapidly and accurately evaluate these threats. Based on Set Pair Analysis (SPA) theory, this study developed a risk assessment model to assess the safety of heritage buildings adjacent to metro construction. In this model, the risk levels of adjacent heritage buildings are ranked. Moreover, this study establishes an assessment index system comprising 16 individual indexes among four categories related to heritage building, metro, soil, and management. The index system determines the interval values for each evaluation factor. To improve the reliability of the index weight, a linear weighting method was adopted. In this study, both subjective weights calculated via the Analytic Hierarchy Process (AHP) and objective weights calculated by the Clustering Weight Method (CWM) are analyzed comprehensively. Moreover, a case study was conducted by applying the proposed assessment model into assessing the structural safety risk of a heritage building adjacent to the Zhengzhou Metro Line Three. It was found the results of the proposed model were consistent with the Matter-Element (ME) method. The proposed model can be used to provide decision-making support for controlling risk on similar projects.

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Section: Implementation Effectsmentioning

confidence: 99%

Safety risk assessment of heritage buildings in metro construction based on SPA theory: a case study in Zhengzhou, China

Wang

Chang-ming²,

Tian

et al. 2020

Preprint

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“…If the distance between pile foundation and shield is too close, tunneling may cause uneven settlement, structural deformation, and cracks in buildings [32][33][34][35][36][37]. To ensure the smooth advance of shield and the safety of adjacent pile foundations, it is necessary to take some protective measures [38][39][40][41][42][43][44][45][46][47][48][49][50]. Bilotta and Russo [42] adopted a simple row of piles to prevent buildings from being damaged by tunneling.…”

Section: Introductionmentioning

confidence: 99%

“…To ensure the smooth advance of shield and the safety of adjacent pile foundations, it is necessary to take some protective measures [38][39][40][41][42][43][44][45][46][47][48][49][50]. Bilotta and Russo [42] adopted a simple row of piles to prevent buildings from being damaged by tunneling.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Protective Schemes for Shield Tunneling Adjacent to Pile Groups

Lai

et al. 2020

Advances in Civil Engineering

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Shield tunneling adjacent to pile groups is always an unavoidable problem in urban metro construction. A case was found in the project of Tianjin Metro Line 7, where a shield tunnel would be constructed near the existing pile groups of Shiyou Bridge. The whole shield tunnel is close to pile groups, and the minimum distance is only 0.8 m. Therefore, four kinds of protective schemes are proposed in this paper. It is vital to select an appropriate protective scheme to guarantee the safety during the tunnel construction. In this study, the main mechanical characteristic and physical parameters of site soil were obtained through laboratory tests. Besides, the three-dimensional finite element method was carried out to compare and analyze the effectiveness of the protective schemes in mitigating the effects of tunneling on adjacent pile groups. The results show that the deep-hole grouting scheme has better control effect on the lateral deformation and bending moment of piles, while the pile foundation underpinning scheme has better effectiveness on reducing the settlement of bridge structure and ground deformation. Finally, the deep-hole grouting reinforcement scheme will be adopted to ensure the shield passing through the pile groups smoothly.

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“…A major concern induced by tunnelling excavation is the potential damage to surrounding buildings and subsurface structures (Bilotta & Russo, 2010). Tunnel-building interaction is a highly complicated process, and risk assessment of adjacent buildings in tunneling environments (RAABTE) has attracted broad attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

A Novel Model for Risk Assessment of Adjacent Buildings in Tunnelling Environments

Zhang¹,

Wu²,

Skibniewski³

et al. 2013

Proceedings of the 30th International Symposium on Automation and Robotics in Construction and Mining (ISARC 2013): Building Th

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This paper presents a novel model to assess the risk of adjacent buildings in tunnelling environments based on Extended Cloud Model (ECM). ECM is an organic integration of Extension Theory (ET) and Cloud Model (CM), where ET is appropriately employed to flexibly expand the variable range from [0, 1] to (-∞, +∞), and CM is used to overcome the randomness and fuzziness during the gradation of evaluation factors. The risk level of a specific adjacent building is assessed by the correlation with the cloud models. A confidence indicator θ is proposed to illustrate the rationality and reliability of evaluating results. Ten buildings adjacent to Wuhan Metro Line Two (WMLT) are randomly chosen among hundreds of adjacent buildings for a case study. Results have proved to be consistent with the actual situation. Compared with other traditional evaluation methods, ECM has been verified to be a more competitive solution with high calculation accuracy, wide adaptability, as well as simplified computer programming. There are no stringent requirements on the quantity of training data during the modelling process, and the original data can be directly entered into ECM without a normalization procedure, avoiding the potential information loss. ECM can be offered as a decision support tool for the risk assessment in urban tunnelling construction and worth popularizing in other similar complicated projects.

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Use of a Line of Piles to Prevent Damages Induced by Tunnel Excavation

Cited by 55 publications

References 13 publications

Safety risk assessment of heritage buildings in metro construction based on SPA theory: a case study in Zhengzhou, China

Safety risk assessment of heritage buildings in metro construction based on SPA theory: a case study in Zhengzhou, China

A Comparative Study of Protective Schemes for Shield Tunneling Adjacent to Pile Groups

A Novel Model for Risk Assessment of Adjacent Buildings in Tunnelling Environments

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