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1

Review of subgrade bearing capacity tests for airfield pavements

Chmielewski Ryszard, Wesołowski Mariusz, Waliszewski Damian

Roads and Bridges - Drogi i Mosty

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2022

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Vol. 21, no. 2

117--131

EN

The article presents issues pertaining to assessment of subgrade bearing capacity for airfield pavements and methods of assessment of natural (turf) airfield surfaces. The presented set of available test methods enables determination of geotechnical parameters of airfield subgrades. Current requirements for bearing capacity of natural airfield pavements and subgrades for artificial airfield pavements are given. California Bearing Ratio (CBR) tests are analyzed in greater detail. Based on the performed own research, it was observed that in the case of soils of uncertain nature (sandy/silty) the force-penetration curve differed from the curves obtained for other soils. Methodology for proper interpretation of the results of such test was proposed. The work also includes verification of the relationship between the value of external load acting on the sample and the obtained CBR value.

PL

W artykule poruszono zagadnienia dotyczące oceny nośności podłoża gruntowego pod nawierzchnie lotniskowe oraz metod oceny naturalnych nawierzchni lotniskowych. Przedstawiono zestaw dostępnych metod badawczych pozwalających na określenie parametrów geotechnicznych podłoża gruntowego pod nawierzchnie lotniskowe. Wskazano obecnie stosowane wymagania dotyczące nośności naturalnych nawierzchni lotniskowych oraz podłoża gruntowego pod sztuczne nawierzchnie lotniskowe. Szerszej analizie poddano badania Kalifornijskiego Wskaźnika Nośności (CBR). Na podstawie przeprowadzonych badań własnych stwierdzono, że w przypadku badań CBR dla gruntów wątpliwych (piaszczysto-pylastych) krzywa wykresu zależności siły od penetracji odbiega od krzywych, jakie uzyskuje się dla innych gruntów. Zaproponowano metodykę właściwej interpretacji wyników tego badania. W pracy dokonano również sprawdzenia wpływu wielkości obciążenia działającego na próbkę na uzyskiwaną wartość wskaźnika CBR.

2

The Principles and Organization of Air Traffic in Military Operations: Experiences from the Mission in Iraq

Zajkowski Rafał

Safety & Defense

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2020

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1

77--88

EN

This article analyzes the principles and organization of the operation of the military runways used by Polish and Allied aircrafts during missions in Iraq. The main goal of the article is to describe the organization and method of air traffic management by the Polish air traffic controllers (ATC). It depicts the method of planning and preparing aviation operations, the principles of air traffic organization, which were the responsibility of the Polish controllers, and the rules for the traffic above the airstrip. Among the particular problems that are discussed, there are the rules of airspace segmentation, the introduced solutions for air traffic control, and the use of airport infrastructure. The experiences discussed include valuable information regarding the process of securing air traffic that can be helpful in the organization of landing pad sand in preparation of both Polish and allied military contingent aviation personnel for future aboard operations. This paper presents the results of the research carried out with the ATC personnel performing tasks in Iraq.

3

Ocena klimatu akustycznego pod ścieżką odlotową lotniska wojskowego Poznań-Krzesiny

Tomaszewski F., Orczyk M., Misztal W.

TTS Technika Transportu Szynowego

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2014

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R. 21, nr 10

49--52

PL

Artykuł dotyczy oceny klimatu akustycznego wokół lotniska wojskowego Poznań-Krzesiny. Badania przeprowadzono w dwóch etapach. Pierwszy z nich polegał na pomiarach i analizie poziomu hałasu w wyznaczonych punktach pomiarowych pod ścieżką odlotową z progu pasa RWY30. Druga część badań skupiła się na ocenie poziomu percepcji okolicznych mieszkańców za pomocą badań kwestionariuszowych. W końcowej części artykułu sprecyzowano wnioski z pomiarów dokonanych obiema metodami badawczymi.

EN

Article concerns the assessment of the acoustic climate around the military airport Poznan-Krzesiny. The research was conducted in two stages. The first one was based on the measurement and analysis of noise levels measured at designated points under the path departing from the runway threshold RWY30. The second part of the research focused on assessing the level of perception of the local population as a result of research questionnaire. In the final part of the article prepared conclusions from the measurements.

4

Lotniskowy system zarządzania kryzysowego

Grenda B.

Zeszyty Naukowe AON

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2011

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nr 3(84)

210-228

EN

Aviation, especially air force and military aviation, shows a great and increasing technological progress achieved during the last century. This progress would not be possible without parallel activities in the aviation security and safety area. The notion of security and safety concerns both maintaining the air complex (aircraft, airport equipment and facilities along with their systems, subsystems, sets and elements), selection of personnel, organization of the management system, meteorological support, creating plans and procedures of operation etc. Security and safety include also the expectations towards air and support personnel of professional approach to perform the mission and eliminate threats. In particular, the task to neutralize threats is utterly difficult in such a complex system as a military airport. Therefore, in the time of appearing new threats, a series of extraordinary, systemic (interdisciplinary) operations are performed on the airbase level, called crisis management. In reference to a military airport, crisis management can be defined as a deliberate and systematic activity of the flying and support personnel to limit or eliminate threats affecting the security and safety of air operations and further existence of the organization (airbase). One-step delay may lead to tragic consequences. Therefore, the aim of the article is to find an answer to the question how to improve crisis management system so that it would counteract crisis situations effectively.