scholarly journals An Overview of GIS-Based Assessment and Mapping of Mining-Induced Subsidence

2020 ◽  
Vol 10 (21) ◽  
pp. 7845
Author(s):  
Jangwon Suh
Keyword(s):  
Engineering Geology ◽  
Risk Mitigation ◽  
Management Strategies ◽  
Mining Subsidence ◽  
Data Uncertainty ◽  
Future Perspectives ◽  
Predictive Mapping ◽  
Mining Areas ◽  
Analytic Methods ◽  
Hazard And Risk

This article reviews numerous published studies on geographic information system (GIS)-based assessment and mapping of mining-induced subsidence. The various types of mine subsidence maps were first classified into susceptibility, hazard, and risk maps according to the various types of the engineering geology maps. Subsequently, the mapping studies were also reclassified into several groups according to the analytic methods used in the correlation derivation or elements of the risk of interest. Data uncertainty, analytic methods and techniques, and usability of the prediction map were considered in the discussion of the limitations and future perspectives of mining subsidence zonation studies. Because GIS can process geospatial data in relation to mining subsidence, the application and feasibility of exploiting GIS-assisted geospatial predictive mapping may be expanded further. GIS-based subsidence predictive maps are helpful for both engineers and for planners responsible for the design and implementation of risk mitigation and management strategies in mining areas.

Sequential risk mitigation and the role of natural recovery in contaminated sediment projects

1998 ◽  
Vol 37 (6-7) ◽  
pp. 331-336 ◽  
Author(s):  
Stephen Garbaciak ◽  
Philip Spadaro ◽  
Todd Thornburg ◽  
Richard Fox
Keyword(s):  
Lower Cost ◽  
Risk Mitigation ◽  
Management Strategies ◽  
Source Control ◽  
Contaminated Sediment ◽  
Practical Observation ◽  
Ecosystem Recovery ◽  
Natural Recovery ◽  
Natural Processes

Sequential risk mitigation approaches the remediation of contaminated sediments in three phases designed to: (1) immediately reduce the ecological and human health risks associated with high levels of contamination, using methods such as the confinement or capping of high-risk materials; (2) reduce the risks associated with moderate levels of pollution to a minimum, on a less urgent schedule and at a lower cost; and (3) address areas of limited contamination through a combination of natural recovery and enhanced natural recovery (to aid or speed those natural processes). Natural recovery, the reduction of contaminant concentrations through natural processes, is based on the practical observation that overall ecosystem recovery appears to be largely a function of time. Sediment decomposition and the mixing of new and old sediments by bottom-dwelling organisms can both contribute to reduced contaminant concentrations. Knowledge of these processes--sediment decomposition, sediment mixing by bottom-dwelling organisms, and chemical residence time is critical in the development of appropriate ecosystem recovery and waste management strategies. Evaluations to support natural recovery predictions are designed to collect and evaluate information necessary to determine whether surface sediment chemical concentrations, with adequate source control, will reach the cleanup standards within a ten-year period.

Risk Management Strategies for Project Success

2018 ◽  
pp. 250-267
Author(s):  
Vittal S. Anantatmula ◽  
Yang Fan
Keyword(s):  
Risk Management ◽  
Project Success ◽  
Risk Mitigation ◽  
Management Strategies ◽  
Management Plan ◽  
Mitigation Strategies ◽  
Risk Management Plan ◽  
Industrial Sectors ◽  
Risk Management Strategies ◽  
Risk Mitigation Strategies

As projects are associated with risks due to the presence of uncertainties and unknowns, risk management assumes importance in project success. This chapter is an attempt to examine various risk mitigation strategies that are commonly employed if different industrial sectors. The chosen risk strategy would also largely depend either on individual's or organization's propensity to take risks. The authors summarize the findings of a research study in this chapter. The research results show that effort and details of a risk management for a project are governed by risks associated with cost and time and not necessarily with the project scope. Also, many organizations prefer a contingency budget to the project plan to developing a detailed risk management plan.

scholarly journals Risk Assessment of Additional Works in Railway Construction Investments Using the Bayes Network

2019 ◽  
Vol 11 (19) ◽  
pp. 5388 ◽  
Author(s):  
Agnieszka Leśniak ◽  
Filip Janowiec
Keyword(s):  
Risk Assessment ◽  
Construction Projects ◽  
Risk Mitigation ◽  
Management Strategies ◽  
Risk Identification ◽  
Bayes Network ◽  
Risk Management Strategies ◽  
Significant Extension ◽  
Development Goals ◽  
Mitigation Methods

The implementation of railway infrastructure construction projects including sustainable development goals is a complex process characterized by a significant extension of individual investment stages. The need for additional works has a big impact on construction railway projects, representing a risk which is the result of many different factors. During the execution of works, both the design assumptions and the conditions of the project’s implementation can be changed. An attempt to eliminate potential risks is a key element of construction projects. The article proposes a proprietary management method for the risk of additional works in railway projects. A methodology for creating risk management strategies using a standard algorithm that includes risk identification, risk analysis, and risk assessment is presented. The original elements of the work include risk identification followed by analysis using Bayesian networks. Using the example of a scenario of events, it is shown that a well-programmed network can be used to implement risk mitigation methods. Using the network, it is possible to compare different ways to reduce risk, check the effect of reducing the risk factors, and determine a satisfactory level of effects, e.g., increased financial resources as a result of additional works.

scholarly journals Towards Integrated Flood Risk and Resilience Management

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1789 ◽  
Author(s):  
Guangtao Fu ◽  
Fanlin Meng ◽  
Mónica Rivas Casado ◽  
Roy S. Kalawsky
Keyword(s):  
Flood Risk ◽  
Management Strategies ◽  
Flood Management ◽  
Future Research ◽  
Risk And Resilience ◽  
Research Directions ◽  
Adverse Impacts ◽  
Hazard And Risk ◽  
Future Research Directions ◽  
Resilience Management

Flood resilience is an emerging concept for tackling extreme weathers and minimizing the associated adverse impacts. There is a significant knowledge gap in the study of resilience concepts, assessment frameworks and measures, and management strategies. This editorial introduces the latest advances in flood risk and resilience management, which are published in 11 papers in the Special Issue. A synthesis of these papers is provided in the following themes: hazard and risk analysis, flood behaviour analysis, assessment frameworks and metrics, and intervention strategies. The contributions are discussed in the broader context of the field of flood risk and resilience management and future research directions are identified for sustainable flood management.

Present Situation of Research on Coal Mining Subsidence under Highway in China

2013 ◽  
Vol 664 ◽  
pp. 954-959
Author(s):  
Wei Nan Deng ◽  
Hua Xing Zhang
Keyword(s):  
Coal Mining ◽  
Present Situation ◽  
Mining Subsidence ◽  
Future Research ◽  
Research Directions ◽  
Mining Areas ◽  
Key Points ◽  
Safety Design ◽  
Future Research Directions ◽  
Coal Mining Subsidence

Research on coal mining subsidence under highway can be divided into two fields: research on the problems caused by coal mining under highway and research on the problems caused by highway construction above mined-out area of coal mine.The issues about safety，design and engineering are the key points restricting the safety and the construction of highway in coal mining areas. The paper completely summarized and analysed the present situation of research on coal mining subsidence under highway and the special characteristics comparing with the general building and the railway. In order to ensure the safety of existing highways and highways in planning in coal mining areas, according to the deficiency of current research, this paper put forward the future research directions of coal mining subsidence under highway.

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