BrainMap

Mr. Cristian Neagoe

Dr

- INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA

Researcher

Curriculum Vitae (09/10/2019)

Expertise & keywords

Advanced research on ambient seismic noise field in Romania Call name: Projects for Young Research Teams - RUTE -2014 call
PN-II-RU-TE-2014-4-0701 2015 - 2017

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA (RO)

Project website: http://reason.infp.ro

Abstract:

The project focuses on improving the knowledge of the nature and origin of the ambient seismic noise wavefield recorded on the Romanian territory and on the use of ambient seismic noise to monitor slight changes of properties in the solid Earth. To reach this goals, several important aspects are considered and answered within this project: i) characterization of the ambient seismic noise in urban environment and investigation of the influence of the noise variations on the H/V ratios; ii) characterization of the ambient seismic noise at two arrays that are part of the Romanian seismic network and investigation of the influence of noise level variations on the detection capabilities of the two arrays; iii) identifying the sources responsible for generation of the noise in the high frequency range as well as in the microseismic frequency band; iv) investigation of the influence of the nature of the noise field on noise cross correlations and their dispersion curves; v) noise based monitoring of the areas where recent crustal earthquakes occurred in Romania. The results of the project can be used for microzonation studies, to reduce the noise in the data of the array networks used for monitoring the nuclear explosions or for seismic early warnings, to develop new approaches to forecast earthquakes based on noise based monitoring of the potentially destructive structures, like active faults.

DAMS SAFETY DURING LARGE DESTRUCTIVE EARTHQUAKES: EVALUATION, IMPROVEMENT, MONITORING, WARNING AND EMERGENCY ACTION PLANS Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1909 2014 - 2017

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA (RO); GEOTEC CONSULTING S.R.L. (RO); TERRASIGNA SRL (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA (RO)

Project website: http://daring.infp.ro/

Abstract:

DARING will develop a scientific based practical instrument in preventing and mitigating the devastating effects of large dams breakage caused by destructive earthquakes. Taking advantages of the consortium experience accumulated in hazard and risk assessment, monitoring and warning accordingly to novel geophysical and seismological theories, observations and models, the project involves the technological means in creating a powerful operational tool which will be used to increase the safety level of the downstream territories, improving life's quality and diminishing possibly huge losses.

The project gathers high level scientific knowledge on probabilistic hazard, vulnerability and seismic risk assessment, using seismic, geophysical, and InSAR approaches, and practical activities of real time monitoring to construct an effective warning and informing application, with both theoretical and material benefits. From this point of view, the project constitutes a turntable which combines the theoretical models and practical observations to produce an output of augmented scientific and practical results.

Three major directions will be developed in this project, to reach its final objective, to provide the emergency services with warnings of a potential dam failure and ensuing flood, allowing further public notification and evacuation:

1. Research area

Probabilistic seismic hazard (PSH), vulnerability and risk in 6 counties from Moldova region including Izvorul Muntelui Dam, down on Bistrita and following on Siret River and theirs affluent. A number of more than 30 dams will be studied and two of the most vulnerable will be chosen for monitoring and warning, as pilot sites, following an extension to the scale of the entire country. Flooding maps will be drawn to find the most exposed downstream localities both for risk assessment studies and warnings.

2. Monitoring dams, lakes, slopes and downstream

Ground and space-based technologies will allow to record and characterize the behavior of the structure, terrain and slopes' stability of studied sites and to corroborate this information with the water quantity currently retained in these hydrological accumulations, and with the meteorological data.

We propose a model of seismic vibration monitoring, one water-level meter in the upstream, 3 floating triggered switches at different elevations for rapid water level changes detection in the downstream and one meteorological station, while satellite interferometric radar observations will provide data regarding millimeters displacements of slopes over long periods.

3. Information and warning system

This is the immediate practical output of the project, which will be performed in 2 steps: local warnings, triggered by strong motion accelerometers system, at large vibrations of different typologies affecting the dam site and/or quickly rising water levels in the downstream triggered by the water level meters and the float switches and early regional warning in the case of a large Vrancea earthquake, triggered by the system already installed in the epicentral zone.

The last product of the project will be a dedicated web portal which will present the seismicity, the seismic hazard and risk values, the geophysical map revealing floodable areas, potential risk and affected localities.

The Romanian Educational Seismic Network Call name: Joint Applied Research Projects - PCCA-2011 call, Type 2
PN-II-PT-PCCA-2011-3.2-1138 2012 - 2016

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE IN CONSTRUCTII, URBANISM SI DEZVOLTARE TERITORIALA DURABILA "URBAN-INCERC" (RO); UNIVERSITATEA BABES BOLYAI (RO); BETA SOFTWARE MANAGEMENT S.A. (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA (RO)

Project website: http://www.roeduseis.ro

Abstract:

Increasing our knowledge about the earthquake phenomena and their effects at the earth surface is an important step toward the education of population in high seismic risk regions and can contribute to raise the awareness about the earthquake risk and possible mitigation actions. A pilot program called The Romanian Educational Seismic Network (RoEduSeis-Net) will be implemented to all levels of preuniversity education throughout Romania. In this direction two viable paths will be experimented in seismic risk educational efforts. The first one has an immediate impact, and it is strongly based on traditional communication supports as booklets, brochures, web sites, public seminars, teacher training and conferences. This is mainly dedicated to nursery, primary and secondary school cycle. The alternative approach is instead grounded on advanced technologies and use of web-oriented accessible tools. The project goal is to create a community for education in seismology where teachers and students run simple and inexpensive seismometer systems for detect earthquakes. This approach is willing to make high-school students the main actors of the scientific experience about earthquakes, by leading them along the laboratory research trail, made of seismogram observation, measurement, analysis and interpretation. In addition, three interactive exhibits will be developed by the project partners aiming to increase the student and public awareness on seismic risk using advanced scientific equipment and real laboratory experiences aided and maintained by specialized technical staff. Driven by the high-tech development of earthquake observation systems, the educational seismology in schools can represent a suitable, integrated environment which makes students, active users of modern technologies rather than passive consumers and the selected vehicle for such training is the seismological observation.

Bridging the gap between seismology and earthquake engineering: from the seismicity of Romania towards a refined implementation of Seismic Action EN1998-1 in earthquake resistant design of buildings Call name: Joint Applied Research Projects - PCCA-2011 call, Type 2
PN-II-PT-PCCA-2011-3.2-0788 2012 - 2016

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA (RO); UNIVERSITATEA TEHNICA DE CONSTRUCTII BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE IN CONSTRUCTII, URBANISM SI DEZVOLTARE TERITORIALA DURABILA "URBAN-INCERC" (RO); AEDIFICIA CARPATI S.A. (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA PAMANTULUI - INCDFP RA (RO)

Project website: http://bigsees.infp.ro

Abstract:

Earthquakes are a serious threat for Romania. Seismic codes are important means for strengthening the resilience of our society against the negative consequences of major earthquakes and, therefore, should become central nodes of disaster mitigation.

The concept of BIGSEES project is „Innovation through standardization”, as a recommendation for closing the gap between R&D activities and standardization work. In the EU strategy, standardization is as a key instrument for improvement in order to foster innovation (Brussels, COM(2008)133 final-Towards an increased contribution from standardization to innovation to Europe). There are some chapters in European Code (EC-8) which are not applicable at all to deep Vrancea earthquake (like effective design values for acceleration, velocities and displacements). Standardization has a dimension of public interest, in particular whenever issues of safety to crustal, strong and deep Vrancea earthquakes.

According to the provisions of EN 1998-1 Eurocode 8 (EC 8), the National Standard implementing EC 8 will comprise the full text of the Eurocode (including any annexes), as published by CEN, which may be preceded by a National title page and National foreword, and may be followed by a National Annex. The National Annex may only contain information on those parameters which are left open in the Eurocode 8 for national choice, known as Nationally Determined Parameters, to be used for the design of buildings and civil engineering works to be constructed in the country concerned. Now, civil engineers and seismologists are joining their efforts to better calibrate the Nationally Determined Parameters.

Romania, as a full EU member, has to calibrate the Nationally Determined Parameters to be included in the National Annex. A first attempt to develop a National Annex was performed in 2008 by smoothing the differences between the philosophy and provisions of EN 1998-1 and the seismic design practice and provisions of P100-1 Romanian Code for Seismic Design of Buildings. Nevertheless, the National Annex is not fully in line with the philosophy of EC 8. The seismic action, as it is defined in EC 8, requires more refined information on local ground conditions of the construction site. The proposed Project envisages to better calibrate the Nationally Determined Parameters for a refined definition of seismic action in line with the provisions of EC 8. The results of the Project will enable the full and reliable definition, in the Romanian National Annex, of the seismic action in line with the requirements of EN 1998-1.

Another major achievement of the BIGSEES Project will be to transform the results of this methodological research on earthquake risk reduction into effective application, that is „New Romanian Seismic Action”, as part of the European Code EC-8 for a refined implementation, in Romanian design practice.

The expected results of the BIGSEES project can play an important role in reducing the negative impact of catastrophic events on densely populated areas and, particularly, in mitigating the damage to strategic structures and lifelines.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects