Risk assessment of route options for the Hanau–Würzburg/Fulda railway project

Wilfing, Lisa; Michael, Joachim; Schutz, D.F.

doi:10.1002/geot.202000036

Cited by 2 publications

(1 citation statement)

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“…Assessing the risks of construction projects has become an essential part of engineering construction in recent years [6]. To minimize the risks of construction projects in a hazardous environment, various models, methods, and simulation approaches are employed by scholars for risk evaluation and control in such areas as project investment and financing [7,8], construction [9,10], and operation management [11], thus facilitating the improvement of project risk management. Meanwhile, risk evaluation at different working stages of water conservancy projects is studied by many scholars.…”

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confidence: 99%

Risk Assessment Method and Application of Urban River Ecological Governance Project Based on Cloud Model Improvement

Xu,

Zhang

2023

Advances in Civil Engineering

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This study classifies risk factors and establishes the risk-evaluation index system for an urban river ecological management project. That system includes construction personnel risk, construction technology risk, construction management factor risk, construction duration factor risk, and other risks. A total of 23 indicators determine the level and standard of each indicator. This study proposes a risk index system that uses the cloud model evaluation method and explains that model’s process. To demonstrate the risk evaluation methodology, it was applied to the ecological management project of Jinghe River in Jinghe New City, China. The results showed that: (1) the urban river ecological management project was subject to “a medium level of personnel risk, management risk, and construction period risk and a relatively high level of technical risk and other risks.” According to the evaluation results, the overall risk level of the project was medium, which is consistent with the risk level of the Jinghe River ecological management project at the current stage. (2) The limitation of the subjective qualitative concept caused by the traditional fuzzy comprehensive evaluation was fully considered in the improved method, and the application of the cloud-model based improved method in risk evaluation of the urban river ecological management project significantly improved the reliability and visualization of the evaluation results. Finally, the urban river ecological management project in China was adopted as an example to prove that the model boasts high stability, and some corresponding countermeasures were also proposed. The research results are expected to provide valuable references and scientific criteria for implementing urban river ecological management projects.

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Section: Introductionmentioning

confidence: 99%

Risk Assessment Method and Application of Urban River Ecological Governance Project Based on Cloud Model Improvement

Xu,

Zhang

2023

Advances in Civil Engineering

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Landslide-tunnel interaction mechanism and numerical simulation during tunnel construction: a case from expressway in Northwest Yunnan Province, China

et al. 2022

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The excavation of the tunnel on the expressway in northwest Yunnan province induced landslide and a series problem such as ground surface cracks of the slope, sliding of the slope, and cracks in the tunnel lining. This research aims to reveal the interaction relationship between the tunnel and the landslide from the prospective of field monitoring and numerical simulation. Firstly, the engineering geological conditions of the slope where the tunnel was located were obtained by field investigation. The “landslide traction segment-tunnel longitudinal tensile failure” mode was put forward based on the spatial relationship between the tunnel and the landslide. Secondly, field monitoring methods were adopted to monitor the surface displacement of the slope, the deep-seated displacement of the landslide, and the propagation of cracks in the tunnel lining. Finally, three-dimensional numerical models were established to investigate the stability of the slope and the tunnel under natural conditions, tunnel excavation conditions, and rainfall conditions. The field investigation results, field monitoring results, and numerical simulation results illustrated that: (1) The tunnel traversed the traction segment of the landslide body in parallel, and tensile failure or shear dislocation failure would occur at different stages of the interaction between the tunnel and the landslide. (2) Two sliding layers were discovered in the landslide, the shallow creep sliding layer and the deep creep sliding layer, which corresponded to the tensile failure and shear dislocation failure modes proposed in the “landslide traction segment-tunnel longitudinal tensile failure” mode, respectively. (3) The slope was in an unstable state under natural conditions. The tunnel excavation disrupted the initial stress equilibrium of the slope, resulting in stress release of the surrounding rock mass. Both excavation and rainfall would exacerbate the deformation of the landslide and the tunnel. Eventually, control measures based on the control grouting technology of the steel floral tubes were suggested to counter with landslide-tunnel deformation problems.

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Risk assessment of route options for the Hanau–Würzburg/Fulda railway project

Cited by 2 publications

References 0 publications

Risk Assessment Method and Application of Urban River Ecological Governance Project Based on Cloud Model Improvement

Risk Assessment Method and Application of Urban River Ecological Governance Project Based on Cloud Model Improvement

Landslide-tunnel interaction mechanism and numerical simulation during tunnel construction: a case from expressway in Northwest Yunnan Province, China

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