National Repository of Grey Literature 12 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Geotechnical investigation of the Dam near Potštát
Müller, Karel ; Staš, Lubomír ; Plšek, B.
Quality of the dam was investigated by geophysical methods, by borehole sounding and by video-inspection of drain tubes. This complex geotechnical investigation has enable to review of dam demage in sourrounding of drain tubes.
Results of synthetic data compression using wavelet transform
Kaláb, Zdeněk ; Knejzlík, Jaromír
To have information about distortion of seismic signals using wavelet transform, synthetic data were used for processing. The results show that very small number of wavelet ceofficients must be used for reconstruction of input signals without significant changes in shape of waveforms, values of maximum amplitudes and prevailing frequncies in signals.
Seismic recording apparatus PCM3-EPC
Knejzlík, Jaromír
Digital seismic signal recorder was designed for application on surface three-component seismic stations established in OK Coal Basin for research of influence of mining induced seismic events on surface objects. Block diagram and main obtained parameters are described.
Evaluation of seismic effects of mining induced seismic events on surface structures - Review
Kaláb, Zdeněk ; Knejzlík, Jaromír
Contribution is brief review of procedures for evaluation of seismic effects of mining induced seismic events on surface structures that used in CR and Poland. It is documented that effects of underground mining of hard coal in the Upper Silesian Coal Basin if very comprehensive and that geological setting have significant influence on induced surface wave field.
11 Years of the underground seismic network in the OKR
Kalenda, P. ; Holub, Karel
In 1988 the underground digital seismological network in the OKR was put in trial operation and since 1989 it has been in a routine operation. In the paper all changes in data interpretation approaches applied during its 11 years existence and futher possibilities in operation improvement of this monitoring system are discussed.
Present knowledge based on the seismic station Ostrava - Krásné Pole (OKC) operation
Holub, Karel ; Knejzlík, Jaromír ; Rušajová, Jana ; Růžek, B.
In the present contribution, description of software package for seismic data transmission and processing in OS Linux are given. Some examples of type analysis for several focal zones of mining induced seismic events and preliminary velocity characteristics are also presented.
Using of longperiod levelling measurement on surface of the exploited uranium deposit of Rožná for mathematical modelling of surface ground subsidence
Hortvík, Karel
Negative impact on surface ground with all its implications that result in case of build-up area above deposit worked represents a concomitant effect of almost every mining activity. Therefore, prediction of development of surface ground subsidence caused in this way is very important task when moderating mining damages of undermined landscape.
Beginnings of geophysics at VŠB
Müller, Karel
Development of geophysics at VŠB in Příbram and Ostrava was connected with the names of prof. F.Čechura and ass.prof. R.Běhounek. The first magnetic measurement for geological purposes was carried out in 1928. The lectures on applied geophysics became a part of teaching of mining engineers and, afterwards, geologists as well.
Historical instruments for geomagnetics measurements in the Collections of VŠB - Technical university of Ostrava
Kaláb, Zdeněk ; Müller, Karel
Collections of VŠB-TU of Ostrava contain historical instruments for geomagnetic measurements. In this contribution, we submitted catalog of the oldest and of the most interesting instruments. The catalog is support by colour or black and white pictures.
Digital sources of geological data in Czech Republic for evaluation of Geohazards
Čápová, D. ; Javůrková, M. ; Kaláb, Zdeněk
Geoinformation System of the Geofond of the Czech Republic contains information concerning geological observations and phenomena that are stored in GIS databases. The system incorporates information for all areas of the CR concerning different type of basic and derived events.

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