Risk analysis of a subway tunnel shield based on a fuzzy synthetic approach

2011 ◽  
Author(s):  
Wang Jie ◽  
Guo Liang-jie ◽  
Yan-qing Li
Keyword(s):  
Risk Analysis ◽  
Synthetic Approach ◽  
Subway Tunnel ◽  
Tunnel Shield

scholarly journals Study on Deformation Law of Subway Construction under Passing Existing Line in Short Distance

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Cong-Shuang Luo ◽  
Yi-Hong Cheng ◽  
Zhe Bai ◽  
Tong Shen ◽  
Xu-Yang Wu ◽  
...  
Keyword(s):  
Large Scale ◽  
Subway Tunnel ◽  
Deformation Law ◽  
Space Projects ◽  
Development And Utilization ◽  
Grouting Reinforcement ◽  
Track Surface ◽  
Shield Machine ◽  
Safety And Stability ◽  
Tunnel Shield

With the large-scale development and utilization of underground space projects, the subway-led Rail Transit Project is developing vigorously, and the safety and stability of subway under passing existing projects have become a key issue for the future. In this paper, the deformation law of subway tunnel under the existing track is studied by using the method of ROCSCIENCE software and field measurement, which is based on the construction of a new double-tunnel shield-driven subway tunnel under the existing city of pile rapid track project. In the crossing area, the distance between the top of the tunnel and the pile foundation is 6.2 m and the distance between the tunnel and the existing track surface is 19.6 m. It is required that the settlement of track caused by the new tunnel construction should not exceed 2 mm. The results show that the settlement of the existing track is greatly influenced by the new tunnel without reinforcement and grouting, and the maximum settlement is more than 9.92 mm. The settlement of the existing track can be controlled to 1.93 mm by adjusting the construction parameters of the shield machine and grouting reinforcement at different stages during construction.

Risk identification of subway tunnel shield construction based on WBS-RBS method

2023 ◽  
Vol 19 (4) ◽  
pp. 1
Author(s):  
Zhiwei Zhang ◽  
Haitao Wang ◽  
Qiang You ◽  
Mingyang Xu
Keyword(s):  
Risk Identification ◽  
Subway Tunnel ◽  
Tunnel Shield

The Monitoring and Analysis of Surface Subsidence of Soft Soil Rock Large Section of Subway Tunnel Shield Construction

2013 ◽  
Vol 848 ◽  
pp. 78-82
Author(s):  
Jin Kui Li ◽  
Bing Wei Yan ◽  
Yong Jian Shi
Keyword(s):  
Surface Deformation ◽  
Soft Soil ◽  
Reference Value ◽  
Lateral Position ◽  
Surface Subsidence ◽  
Subway Tunnel ◽  
Tunnel Excavation ◽  
Working Face ◽  
Shield Machine ◽  
Tunnel Shield

In this paper use the shield construction of Dalian subway 202 bid section as an example, carried out the monitoring measurement of surface subsidence and crown surface subsidence during the shield construction, detailed analysis the monitoring data, explored the characteristics and distribution of surrounding rock and surface deformation of large cross section shield construction. Construction transverse deformation has a relationship with lateral position and the tunnel excavation length. The closer from shield machine working face, the closer to the center line of the tunnel, the greater impact is. The research results have reference value for the future similar engineering design and construction.

Risk analysis of sternal wound infection after coronary bypass grafting

2010 ◽  
Vol 58 (S 01) ◽  
Author(s):  
J Schönebeck ◽  
B Reiter ◽  
O Haye ◽  
D Böhm ◽  
M Ismail ◽  
...  
Keyword(s):  
Risk Analysis ◽  
Wound Infection ◽  
Coronary Bypass ◽  
Bypass Grafting ◽  
Sternal Wound Infection ◽  
Coronary Bypass Grafting

Design Thinking as a Tool for the Analysis of Project Risks

2019 ◽  
Vol 16 (6) ◽  
pp. 60-77
Author(s):  
E. V. Vasilieva ◽  
T. V. Gaibova
Keyword(s):  
Risk Management ◽  
Risk Analysis ◽  
Design Thinking ◽  
Management Tools ◽  
Project Risk ◽  
Team Members ◽  
Investment Projects ◽  
Risk Management Process ◽  
Project Objectives ◽  
Project Risk Analysis

This paper describes the method of project risk analysis based on design thinking and explores the possibility of its application for industrial investment projects. Traditional and suggested approaches to project risk management have been compared. Several risk analysis artifacts have been added to the standard list of artifacts. An iterative procedure for the formation of risk analysis artifacts has been developed, with the purpose of integrating the risk management process into strategic and prompt decision-making during project management. A list of tools at each stage of design thinking for risk management within the framework of real investment projects has been proposed. The suggested technology helps to determine project objectives and content and adapt them in regards to possible; as well as to implement measures aimed at reducing these risks, to increase productivity of the existing risk assessment and risk management tools, to organize effective cooperation between project team members, and to promote accumulation of knowledge about the project during its development and implementation.The authors declare no conflict of interest.

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