Górnictwo i Geoinżynieria
Loading...
ISSN 1732-6702
Issue Date
2007
Volume
R. 31
Number
Nr 3
Description
Journal Volume
Górnictwo i Geoinżynieria
R. 31 (2007)
Projects
Pages
Articles
Badania geofizyczne w rozpoznaniu warunków geotechnicznych budowy tuneli
(2007) Bestyński, Zbigniew; Thiel, Kazimierz
The choice of optimal route and construction of the tunnel requires a geotechnical recognition of a wider area where the tunnel might be located. The recognition is possible if we use a proper suite of geophysical methods. In case of geophysical recognition of flysch formations in southern Poland, seismic and geoelectric surveys were proven as the most efficient. The surveys make it possible to characterize basic features of flysch, as lithology and tectonic. Numerous geophysical surveys carried out on area of flysch Carpathians to geotechnical purposes have proven also that geophysical parameters characterizing flysch (seismic wave velocity, electric resistivity) are sufficient to describe its geotechnical properties as geotechnical class. The formula on geophysical index of geotechnical classification, called KFG, was determined using statistical methods in a manner ensuring the index is equivalent to RMR Bieniawski value. KFG index was successfully applied to proposing routes and technology of boring of hydrotechnical galleries. It was also applied for reconnaissance of routes of communication tunnels planed in flysch Carpathians. Seismic and resistivity methods appeared to be very effective in recognition of fluvio-glacial deposits occurring along the tunnel route planned in Gdańsk.
Budownictwo tunelowe, przejścia podziemne i parkingi w Krakowie dziś i w przyszłości
(2007) Bujakowski, Kazimierz ; Chwastek, Jerzy; Mikołajczak, Jerzy
Kraków in the last few years became the place of building great traffic undertakings, which were started to plan even in 1970s and 1980s. Structures, which did not bring the glory to the city, around Central Station in Kraków, disappeared, and in their place came into being Kraków's Communication Center with tunnels for vehicular and rail traffic. Investment policy of the City aims to radical improvement of traffic in the city, through constructing new routes, reconstructing existing communication systems including building tunnels. The elements which should improve the city road network are underground passages and car parks currently under construction. Those investments will improve the state of air as well as acoustic situation in the run of main streets of Kraków city.
Analiza stateczności zboczy drugiej kwatery nowego składowiska odpadów komunalnych w Zakopanem
(2007) Cała, Marek; Olesiak, Sebastian
This paper continues description of activities with municipal waste disposal in Zakopane. The previous paper dealt with the reasons of failure of the first chamber embankment. The propositions of stabilisation works were also presented. The process design verification for the second chamber was described here. The good example of cooperation between the designer and geo-engineering team was documented. It allowed optimisation of the design to serve the users of waste disposal and to protect the environment.
Ochrona unikatowego ekosystemu oraz ograniczenia w zagospodarowaniu Podziemi Tarnogórsko-Bytomskich
(2007) Chmura, Janusz; Kłys, Grzegorz; Wójcik, Andrzej J.
Tarnowskie Góry - Bytom underground is an extensive and complicated system of mining excavations resulting from hundreds of years of mining and ore exploitation. The total length of all galleries, chambers and pits is over 300 km - it is one of the biggest underground system in the world. This system is connected with the surface of earth by five galleries, many shafts and excavations located in the neighbouring quarries. Over the years, an unique microclimate and a multifarious dripstone cover formed there. Because of favourable conditions, bats settled in it, using this labyrinth as a place of winter hibernation and a shelter during the summer period. Among the bats, eight species have been discovered so far, in particular: Myotis myotis and Plecotus auritus.
Problemy nośności stalowej obudowy odrzwiowej wyrobisk korytarzowych użytkowanych w długim okresie
(2007) Chudek, Mirosław; Duży, Stanisław; Dyduch, Grzegorz; Bączek, Arkadiusz
Over 90 percent of headings in collieries are made with steel support. This support is often under intensive, aggressive influence of mining conditions causing a slow decrease of construction load capacity. The paper presents results of in situ research of corrosion of steel support set ŁP, on the basis of headings steel supports set, used in a long period of time, reliability maintenance geomechanical and technical problems. On the basis of the results of the research, the characteristic features of the corrosion process and their influences of the construction load capacity are presented.