Wyniki wyszukiwania - BazTech

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Termomonitoring przecieków oraz procesów erozyjnych w analizie konstrukcji wykopów i budowli piętrzących

Radzicki K., Popielski P., Dornstädter J.

Przegląd Geologiczny

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2017

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Vol. 65, nr 4

234--242

EN

Increased seepage processes, including leaks and resulting internal erosion processes, are among the main threats to the safety of dams and levees and to the safety of deep excavations and nearby buildings. These processes can significantly affect the cost of exploitation of damming structures and the costs of construction of underground parts of buildings. One of the basic methods currently used indetecting and analysing these processes is the thermal monitoring method. This method has been used successfully for several decades, particularly in Western Europe and has evolved substantially in the last decade. Currently it is being implemented in pilot applications in Poland. The paper describes the risks and consequences of leaks and internal erosion processes for a damming structure and deep excavation. The authors present the basic issues concerning the method of thermal monitoring based on their professional experience in numerous applications of thermal monitoring methods in both hydraulic engineering and geotechnics. The paper shows examples of thermal monitoring application in the analysis of dams and deep excavations.

2

EnviMIX building products based on industrial wastes and their potential use also beyond the area of water engineering

Bibora P., Svoboda M., Ledererova J., Leber P.

Czasopismo Techniczne. Chemia

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2011

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R. 108, z. 1-Ch

13-16

EN

This contribution is focusing on a project which is offering new possibilities of water engineering constructions, mainly dams and ramparts from new EnviMIX products, with the use of selected coal combustion products during their production. The project assumption is elimination of negative influences of flowing water which are occurring in stabilizing components as well as of other undesirable riverscape impacts. One of soil surface stabilizing elements is vegetation cover and its root system, which is contributing to an increase in soil retention ability and also to its stabilization. The project comprises research activities of two research institutes; the building materials sphere is presented by Research Institute of Building Materials in Brno, and the pedology and vegetative cover sphere is presented by Research Institute of Fodder Plants in Troubsko.

PL

W artykule przedstawiono projekt proponujący nowe możliwości konstrukcji w budownictwie wodnym, a także obwałowań powstałych na bazie produktu EnviMIX z wykorzystaniem wyselekcjonowanych produktów spalania węgla. Celem projektu jest stabilizacja brzegów rzek oraz ochrona walorów krajobrazowych. Jednym z elementów stabilizujących nadbrzeże jest pokrywa roślinna, która podnosi właściwości retencyjne gruntów. W projekcie porównano wyniki badań dwóch placówek naukowych: Instytutu Materiałów Budowlanych w Brnie (w zakresie materiałów budowlanych) oraz Instytut Hodowli Roślin Paszowych w Troubsku.

3

Ecological impact of a dam on benthic macroinvertebrates in montane rivers of lower Silesia

Rybak J., Sadłek W.

Environment Protection Engineering

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2010

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Vol. 36, nr 2

143-151

EN

The ecological impact of dams on benthic macroinvertebrates found in three small montane rivers in south-western Poland was assessed. The macroinvertebrates lived in upstream and downstream zones as well as in the river free of any anthropogenic impact. We sampled 14 543 macroinvertebrate individuals in order to show how they respond to an impounding reservoir. We employed biotic indices (BMWP-PL, ASPT) to prove their usefulness as the indicators of anthropogenic perturbation. The diversity of macroinvertebrate species above dams and in the "natural" river was significantly higher than below dams. The chironomids and dipterans dominated downstream. However, the density of Ephemeroptera, Trichoptera and Crustacea was significantly reduced downstream. The analysis of Simpson's diversity index also proved the above results.