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Projects

periodproject
05.2021 - 07.2024

Risk management of natural hazards through monitoring and risk modelling in Svaneti (Georgia)

Engineering geological mapping and sampling for laboratory investigation of rock properties in selected areas and subsequent rock classification

Definition of existing hazard processes and their intensity (rockfalls, slope movements, mudflows, incl. intensity) and survey of factors that influence mass movements (morphology, geology, precipitation, vegetation ...)

Development of a localised monitoring and early warning system and event register "mass movements" based on QGIS

Numerical calculation and forecasts for rockfalls/slides, incl. Determination of failure mechanisms and safety factors

Proposals for improved planning of rock embankments and slopes, e.g. for road cuts, in order to reduce future damage

03.2018 - 04.2021

Cross-border expert and early warning system for geohazards in the Elbe Sandstone Mountains

Establishment of a monitoring and early warning system in the Elbe valley area and cross-border expert system "Georisks" based on QGIS

Development of numerical andengineering geological prediction models with regard to rock failure at selected localities

material investigations

engineering geological classification of selected slope areas

09.2018 - 12.2020

Simulation of crack development in architectural elements and objects made of natural stone due to high thermal stress to develop calculation routines for statements on residual strength

Fire tests on cylinders and balusters made of Cotta and Posta sandstone and Lusatian granodiorite

Material science investigations before and after fire tests (microstructure, mineralogy, strength, CT, SEM)

Generation of geometric models and numerical simulation to determine the damage mechanisms

11.2017

Dissertation for the Dr.-Ing. at the Institute of Geotechnics of the TU Bergakademie Freiberg:

"(Roofing) slate - origin, deposits, properties, standards and mining"

Analysis of properties, in particular with regard to pronounced anisotropy (petrography, microstructure, strength, physical properties) and critical evaluation of existing standards

Adaptation of an existing method for an alternative determination of the flexural strength and modulus of elasticity of shale and image-analytical quantification of the microstructure

Geoscientific exploration and investigation methods

Methods of mining, geotechnical rock classification, failure mechanisms and geotechnical aspects of mining

recording and describing worldwide shale deposits and setting up a GIS (geology, storage conditions, properties, use ...)

10.2012 - 10.2014

Numerical simulation for risk assessment of consolidated monuments

Material science investigations (mineralogy, microstructure, porosities, strengths)

Rock mechanical simulation for risk assessment with regard to possible damage caused by consolidation and thermal stress

Supervision of student work on fluid mechanical simulations of the consolidation process as a basis for possible future optimisations of the process

06.2009 - 09.2012

Investigation and documentation of small monuments in the Saxon-Bohemian border region

Recording and documentation of small monuments in the field

Design of a database and input of data obtained into a GIS

Collaboration on the development of substance-preserving investigation methods regarding crack predictions in building stones

07.2005 - 02.2007

Investigation of the Cistercian monastery Osek (Czech Republic) in cooperation with the Charles University Prague

Engineering geological investigations and incorporation of all spatial data into a GIS

Investigations of underground old mining and its damage to the building

Publications

  • Wichert, J. (2023). Schiefer als Werkstein - Entstehung, Eigenschaften, Vorkommen, Abbau. Springer. 
  • Wichert, J. (2020). Slate as Dimension Stone - Origin, Standards, Properties, Mining and Deposits. Springer. 
  • Cárdenes, V., Cnudde, J.P., Wichert, J., Large, D., López-Mungira, A., Cnudde, V. (2016). Roofing slate standards: A critical review. Construction and Building Materials, 115, 93-104. 
  • Wichert, J., Siedel, H., Frühwirt, T., Konietzky, H. (2015). Innovatives Verfahren zur Festigung von schwer konservierbaren umweltgeschädigten Sandsteindenkmalen und numerische geomechanische Simulation der Risiken. Freiberg: TU Bergakademie Freiberg.