Presentation of RISK-UE Project     

Pierre Mouroux  Benoît Le Brun 《Bulletin of Earthquake Engineering》2006,4(4):323-339

This paper is a presentation of an European project called RISK-UE, entitled: “An advanced approach to earthquake risk scenarios with applications to different European towns”. It gives the origin, the objectives and the organisation of the project, together with the content of the different workpackages comprising methodological aspects: different features of European town, seismic hazard, urban system exposure, vulnerability of current, historical and monumental buildings, vulnerability of lifelines and essential facilities, seismic risk scenario, with an application to the seven following cities: Barcelona, Bitola, Bucharest, Catania, Nice, Sofia and Thessaloniki. These studies were realized in close relation with the decisionmakers of these cities, in order that they implement Risk Management Plans and Plans of Action to effectively reduce seismic risk.  相似文献   

Evaluation of drill cuttings in prediction of penetration rate by using coarseness index and mean particle size in percussive drilling   总被引：1，自引：0，他引：1  

Raşİt Altindag 《Geotechnical and Geological Engineering》2004,22(3):417-425

Penetration rate of rocks is influenced by geological parameters, machine parameters and operating parameters. This paper presents a study on the coarseness index (CI) and mean particle size (d) to evaluate the penetration rate (PR) in percussive drilling in a limestone and in a marl quarry. The coarseness index was determined from sieve analysis. The mean particle size (d) and specific surface area (SSA) were determined by using Rossin-Rammler-Sperling (RRS) graph for each hole samples. The relationships between PR and CI, d, SSA were investigated by regression analysis. The best lines were selected in these graphs. Reliable relations were found between penetration rate and coarseness index and mean particle size. Finally, it was seen that the coarseness index and mean particle size could be used in evaluating the penetration rate in percussive drilling operations. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

Trace-element geochemistry of individual glass shards of the Old Crow tephra and the age of the Delta glaciation, central Alaska     

James E Begét  Mary J Keskinen 《Quaternary Research》2003,60(1):63-69

Two widespread tephra deposits constrain the age of the Delta Glaciation in central Alaska. The Old Crow tephra (ca. 140,000 ± 10,000 yr), identified by electron microprobe and ion microprobe analyses of individual glass shards, overlies an outwash terrace coeval with the Delta glaciation. The Sheep Creek tephra (ca. 190,000 yr) is reworked in alluvium of Delta age. The upper and lower limiting tephra dates indicate that the Delta glaciation occurred during marine oxygen isotope stage 6. We hypothesize that glaciers in the Delta River Valley reached their maximum Pleistocene extent during this cold interval because of significant mid-Pleistocene tectonic uplift of the east-central Alaska Range.  相似文献   

Spectral analysis of geomagneticPc3 pulsations recorded at Budkov and Niemegk     

Jaroslav Střeštík  Reviewer M. Hvoždara 《Studia Geophysica et Geodaetica》1979,23(3):235-241

Summary The dependence of the individual parameters of geomagnetic Pc3 pulsations, of their frequencies, amplitudes, phases, flattening of their polarization ellipses, the orientation of their major axis and the sense of rotation of the disturbance vector, are determined from the records made at the Budkov and Niemegk Observatories. Also their diurnal variations at both stations and the correlation of the numerical values between both stations are given.  相似文献   

The third asymptotic distribution of largest magnitudes in the Balkan earthquake provinces     

Zdeňka Schenková  Vít Kárník 《Pure and Applied Geophysics》1978,116(6):1314-1325

Summary The third asymptotic distribution of the theory of largest values is applied to sixteen earthquake provinces in the Balkan area. The model which assumes an upper magnitude limit fits the observations better than the first distribution. Graphs and tables provide estimates of return periods of largest magnitudes.Communication presented at the XV General Assembly of the European Seismological Commission in Krakow, 22–28 September, 1976.  相似文献   

A high sensitivity spinner magnetometer     

Vít Jelínek 《Studia Geophysica et Geodaetica》1966,10(1):58-78

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Catalogue of earthquakes and atlas of isoseismals for the Bohemian massif,the Carpathians and the Rhodope Mts     

Dana Procházková  Zdeňka Schenková  Vít Kárník  Reviewer K. Pěč 《Studia Geophysica et Geodaetica》1977,21(1):102-105

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Magnitude-intensity relations for European and mediterranean seismic regions     

Vít Kárníe 《Studia Geophysica et Geodaetica》1965,9(3):236-249

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Intensity—Distance relation for European earthquakes and its application     

Vít Kárník 《Studia Geophysica et Geodaetica》1965,9(4):341-349

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Preliminary studies on the geochemistry of the Cauvery river basin     

V Subramanian  L van t’ Dack  R van Grieken 《Journal of Earth System Science》1985,94(2):99-110

Samples of water and sediments were collected over a three year period from the entire region of Cauvery river basin excluding the estuary. On the basis of our observations, we have calculated the average composition of the Cauvery river at several locations from the catchment to the river mouth, the downstream profile of sediment load, annual erosion rates, solute and sediment fluxes and have predicted on long term changes. The sediment chemistry was determined by x-ray fluorescence (xrf) technique, and calculated mean compositions of the Cauvery and its tributary bed and the suspended sediment were compared to those of world average river sediments. Downstream profiles of some of the elements appear to be controlled by size and mineralogical characteristics besides local factors specific to the location of the samples. Interelemental relationships indicated good correlation among the transition elements indicating their co-genetic behaviour within the drainage basin.  相似文献