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Nadzwyczajne zdarzenia w infrasktrukturze transportu drogowego województwa łódzkiego

100%

Ziułkiewicz M., Uniwersytet Łódzki W. N. G.

Acta Universitatis Lodziensis. Folia Geographica Physica

2008

vol. 8

Artykuł powstał w wyniku prac badawczych prowadzonych w ramach Projektu Zamawianego MNiI (K091/P04/2004/11).

The aim of this analysis is to present events, which concerned communication infrastructure in Łódź district in 1999-2004 in river valleys. Valleys' borders were taken from geomorphologic drafts of Detailed Geological Maps in scale of 1 : 50 000. The total number of events was 430, which was 14.2% of total registered events in particular district. Within long lasting period the number of events successively grew, the fastest increase was observed in the group of small events (>= 1 kg of the used sorbent), however medium events were just after small ones (>= 10 kg of the used sorbent). Large local events (>= 100 kg of the used sorbent) did not exceed 10% of the total of small events, with no definite tendency to change. As a result of increase of events number, the amount of used sorbent increased as well. Between 1999 and 2004 its fourfold increase was recorded. During the whole year its warm half year was significantly dominant. The greatest danger for the environment of Łódź district river valleys, according to EWID _99 database, is generated by road transport partially causing chemical and ecological threat. However, the scale of this phenomenon is very changeable. If the amount of used sorbent is compared, it is clear that its 6% were used in chemical and ecological rescue operations in 2000, while 43% in 2003. Between two biggest river valleys crossing Łódź district more endangered one is Warta river valley. During the period of analysis 35 local events took place (8% of total events in river valleys) and 967 of sorbents were used, of which 1% were used to remove ecological elTects. In Pilica valley the number of events was two times smaller, what resulted in usage sixfold smaller amount of sorbents than in Warta valley. Any chemical and ecological events were recorded.

Osuwiska w województwie łódzkim i ich szczególny charakter w wyrobisku KWB "Bełchatów"

86%

Czarnecki L., Goździk J., Uniwersytet Łódzki W. N. G.

Acta Universitatis Lodziensis. Folia Geographica Physica

2008

vol. 8

Artykuł powstał w wyniku prac badawczych prowadzonych w ramach Projektu Zamawianego MNiI (K091/P04/2004/11).

An increase of the intensity of landslide processes and threats, which they cause, resulted in growth of interest in rock slides. Łódź district is located in the area, where the frequency of slide processes caused by natural factors is the lowest in Poland. It is due to lack of natural long slopes of big inclinations. However, the geological structure of some areas potentially favours landslides formation, especially there, where great slopes are created by humans (Fig. 1, 2, Photos 2, 3, 4). There are many mineral resources mines in Łódź district, hence the probability of steep escarpments and hillsides formation creation increase the chance of landslides danger. However, the type of extracted ores, with a few exceptions, do not favour landslides formation. If they are formed there are of small sizes. One, but a very important exception is KWB "Bełchatów" opencast excavation and a new adjacent, similar "Szczerców" opencast. Because of particular depth of the flIst excavation and its very complicated geological structure, landslides processes are here frequent and intensive. The sizes of formed landslips are comparative with the greatest natural landslides in Poland (Tab. 1, Fig. 4, Photos 3, 4). They are a great threat for machines and workers of mining factory. The analysis of current landslide processes, establishing the reasons of their formation and their dynamics, as well as continuous monitoring of the zones endangered by these phenomena are basic for controlling landslide processes and limiting danger.

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2 Acta Universitatis Lodziensis. Folia Geographica Physica

2 2008

2 Uniwersytet Łódzki W. N. G.

1 Czarnecki L.

1 Goździk J.

1 Ziułkiewicz M.

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Nadzwyczajne zdarzenia w infrasktrukturze transportu drogowego województwa łódzkiego

Osuwiska w województwie łódzkim i ich szczególny charakter w wyrobisku KWB "Bełchatów"