Since 2014, work regarding the revision of the Standard EN 12642 “Securing of cargo on road vehicles - Body structure of commercial vehicles - Minimum requirements” has been done, which is known for users of CODE XL certified swap bodies. Based on the negotiations on the above-mentioned standard, requirements for the revision of other standards for the cargo securing emerged. Currently, Expert group CEN TC 119 WG 7 is working on these standards. This paper discusses about the standards revision regarding the cargo securing.

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Draft for Revision of the Standards EN 12640 and EN 12641 Regarding the Securing of Cargo on Road Means of Transport

Расчёт тепло - и влагообмена МКЭ в земляном полотне железных и автомобильных дорог

. The purpose of this work is to study a mathematical model for predicting freight traffic during the construction of a new railway line Uzbekistan - Kyrgyzstan - China, taking into account the considered economic factors. The proposed algorithm for constructing a predictive mathematical model of freight traffic during the construction of a new Uzbekistan-Kyrgyzstan-China railway line will make it possible to choose technical solutions that determine the operation of the Uzbekistan railway in the future, as well as the best options for strengthening its capacity in the future.

Mathematical model for prediction of cargo flow during the construction of the railway line Uzbekistan - Kyrgyzstan – China

The subjects of the study are practical measures for the design of a system of railroad protection from sand. The article addresses the issues of reducing the negative impact and proposes practical measures for the design of the system to protect the railroads from sand. The absence of a logically interconnected protection system was revealed. There is an urgent need to develop theoretical and practical foundations, the practical application of which is the methodology for its design, based on constructive solutions and their organizational and technological schemes for protecting railroads from drifting sand.The research methods are the axiomatic rules for designing measures to protect railroads from quick sands. Graph-analytical models of constructive solutions and the organizational and technological schemes of protection against sand drifts by barriers are developed in the article. The identification of the constituent elements of barriers with known geometric shapes and the introduction of a transition coefficient made it possible to simplify as much as possible the design of the railroadsprotectionby barriersfrom sand drifts. 

Specific methodological aspects of designing railroads protection

. The article presents the results of field surveys of the condition of reinforced concrete sleepers of the BF70 type with different periods of their operation and different missed tonnage on the main tracks of JSC "Uzbekistan Temir yullari". The main types of defects and the causes of the destruction of the sleepers have been identified. They were distributed according to classification numbers. In order to increase the life cycle of the under-rail foundation and the overhaul period, ways to prevent and eliminate defects are recommended.

Investigations of damage to the under-rail base on the main routes JSC "Uzbekistan Temir Yullari"

Summary. This article is based on the theoretical foundations of secure mobile sand being considered for reducing the negative impact...

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Prospects Fixation Drift Sands Physicochemical Method

Summary. The paper focuses on the reduction of negative effects on the railway exogenous processes (sand bars, landslides, etc.). Proposed to introduce a system of design, construction and operation of natural and technical objects set of organizational and technical measures, consisting of techniques: the choice of method, to map the distribution of exogenous events, the development of a program of measures for the protection and the optimization of the work program, assess the quality and effectiveness. Methodological elements are developed by the author of the complex method of risk assessment exogenous expression and scale of priorities of road elements of the defense.

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Makhamadjan Mirakhmedov

Papers

Prospects Fixation Drift Sands Physicochemical Method

Organization activities for protection of the railway from exogenous processes