Use of Property of Floating Bridge NZHM-56 Considering Today's Military Challenges

Abstract

Purpose. The purpose of this work is to analyze the use of the property of the floating railway bridge NZM-56 for the technical cover of important transport facilities and the rapid restoration of road traffic through water obstacles in the territories of Ukraine affected by the hostilities, taking into account the challenges of the military today. Methodology. Studying the experience of guiding and operating automobile pontoon crossings from the property of the floating railway bridge (NZM-56) by units of the State Special Service of Transport across the Desna River in the Chernihiv region. Findings. The result of this work is collected data on the advantages and problematic issues that arose during the construction and operation of floating bridges, development of directions for further research to improve technical and operational characteristics. The use of available material resources, namely the property of the floating railway bridge (NZM- 56), for the construction of bridge crossings with floating bridges on the short bypass of the bridges destroyed as a result of the hostilities made it possible to quickly restore the movement of road transport on the roads of state importance. The identified weaknesses in the operation of floating bridges are the wooden bridge deck, which cannot withstand the intense wheel load and the small distance between the floating supports (pontoons) along the facade, which requires continuous maintenance of the crossing. Development of directions for further research to improve technical and operational characteristics. It is proposed to consider the possibility of using steel-reinforced-concrete span structures with a high percentage of factory production to cover the spans of floating bridges. Originality. The scientific interest lies in the fact that for the quick and high-quality restoration of traffic through wide and deep water obstacles, the available material resource (NZM-56) was used to guide road crossings, which significantly improved the transport logistics of the regions of Ukraine affected by the hostilities. Practical value. Based on the learned experience of floating (pontoon) bridges, it is possible to conclude that floating bridges are an effective way of providing transport logistics, have low advantages, therefore the use of these structures can ensure effective restoration of traffic.