Identify and Analyze the Risks Involved in Tunnel Projects

Gafari, Mohammad; Aminzadeh, Rahim

doi:10.12944/cwe.10.special-issue1.129

Cited by 6 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Underground space projects are characterized by a wide range of uncertainties related to geotechnical and environmental conditions and constraints. Structure and properties of geological formations, groundwater conditions, geological processes and events related to earthquakes, erosion, karst and geothermal heat can all increase the scope of the project and even mandate adopting other construction methods (Gafari and Aminzadeh, 2015). These projects are also more vulnerable to natural hazards suggesting that project participants should allocate necessary resources to extract and interpret information from the environment, for properly mitigating and timely responding to external risks (Shen et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Identification of critical paths leading to cost claims for underground metro projects: a system dynamics approach

Wang

Harsono

Shieh

et al. 2022

View full text Add to dashboard Cite

PurposeInfrastructure projects play a vital role in the development of countries' economies. However, these projects, notably underground ones, are encountering growing claims as they are subject to many unknowns. Without having a clear insight into the causes of claims and their influence on one another, it is not possible to mitigate their adverse impacts on these projects' goals. To this aim, the main purpose of this study is to identify the critical paths leading to cost claims for underground metro projects.Design/methodology/approachFirst, causes of claims were identified through a literature review and then refined to 22 main causes according to the opinions of 148 Iranian experts. A qualitative system dynamics (SD) model was then provided to visualize how various causes interact with each other. The model was developed and validated by drawing on the expertise of industry-related experts, and the critical paths were finally recognized based on their frequency and severity indexes.FindingsThe findings revealed that each cause should be evaluated based on their connections with others as there are complex relations among the causes. It was also shown that the major claim paths among others were initiated due to ambiguous contract clauses, unforeseen physical conditions and land handover problems.Originality/valueThe findings of this study provide a better insight into how various causes of claims for underground metro projects are related to each other and can eventually assist project managers of different parties, even in other countries, to select proportional strategies to mitigate their adverse impacts.

show abstract

Section: Resultsmentioning

confidence: 99%

Identification of critical paths leading to cost claims for underground metro projects: a system dynamics approach

Wang

Harsono

Shieh

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In 2004, the total costs of the construction of the Channel Tunnel and all equipment needed added up to 4650 million GBP. Public information is available [38][39][40][41][42].…”

Section: Project Benchmarkingmentioning

confidence: 99%

Hydrogen Infrastructure Project Risks in The Netherlands

2021

View full text Add to dashboard Cite

This study aims to assess the potential risks of setting up a hydrogen infrastructure in the Netherlands. An integrated risk assessment framework, capable of analyzing projects, identifying risks and comparing projects, is used to identify and analyze the main risks in the upcoming Dutch hydrogen infrastructure project. A time multiplier is added to the framework to develop parameters. The impact of the different risk categories provided by the integrated framework is calculated using the discounted cash flow (DCF) model. Despite resource risks having the highest impact, scope risks are shown to be the most prominent in the hydrogen infrastructure project. To present the DCF model results, a risk assessment matrix is constructed. Compared to the conventional Risk Assessment Matrix (RAM) used to present project risks, this matrix presents additional information in terms of the internal rate of return and risk specifics.

show abstract

“…Political risk According to Gafari and Aminzadeh (2015), the risks that occurring in tunnelling projects can be defined as unusual problems that cause inaccessibility of geotechnical studies that required in order to predict the factors of many types of accidents that possibly happen at underground areas or spaces. They can be consisted of uncoordinated and geological processes, causes that linked to hydrological conditions of underground, properties and characteristics of geoformations.…”

Section: General Risks For Tunnelling Projectsmentioning

confidence: 99%

Drainage-Related Risks for Operation and Maintenance of Tunnelling Projects: an Overview

Lee¹,

Ghazali²

2018

IJET

View full text Add to dashboard Cite

The importance of drainage-related risks associated with tunnelling projects requires special attention from tunnel operators to analyse and manage the risks. The optimal management of drainage-related risks in tunnelling projects involves multiple objectives such as flood management, maximisation of design capacity of drainage contamination and optimisation of overall drainage system. This paper focuses on identifying the key drainage-related risks that have great potential of occurring in highway tunnelling projects. The outcomes of this research are developed based on findings obtained from extensive literature review and case studies that have been conducted by a few researchers. The identified drainage-related risks will be reviewed in this paper. All these risks can be included as key information when drafting a new risk management plan or to be added into the existing risk management plan in order to enhance the operation and maintenance of tunnelling projects.

show abstract

Identify and Analyze the Risks Involved in Tunnel Projects

Cited by 6 publications

References 0 publications

Identification of critical paths leading to cost claims for underground metro projects: a system dynamics approach

Identification of critical paths leading to cost claims for underground metro projects: a system dynamics approach

Hydrogen Infrastructure Project Risks in The Netherlands

Drainage-Related Risks for Operation and Maintenance of Tunnelling Projects: an Overview

Contact Info

Product

Resources

About