This research includes a geodetic study for the rehabilitation of damaged bridge
cranes axes, its reconstruction and calibration in order to invest in the production process.
The beginning was devoted to studying the types of bridge cranes used in
large factories,
geodetic methods used in their construction, and the conditions that must be achieved by
axes. Based on the previous conditions, we have proposed a geodetic method to
rehabilitate cranes. Also, a computer program has been prepared to implement the
proposed mechanism by (mat lab). Testing the proposed method I has been done with the
program on actual examples. The program was tested in two main cases:
-First: When installing bridge cranes axes,
-Second: In the periodic monitoring (systematic control) for bridge cranes.
The research has proved the possibility of using the proposed method in
rehabilitation, installation, periodic monitoring. It also has showed the efficiency of the
proposed computer program.
This research concerns the future role of Latakia and Tartous seaports as bases of multimodal transport system in the Arab orient, the importance of the project is stemmed from the genuine strategic geographical location of Syria, assuming that this
location could serve the future role of the Latakia and Tartous seaports as multimodal transport base in the Arab orient , as it is linked the Syrian hinterland through the land transport and rail road transport networks , which are extended to Iraq , from Iraq it extends to Iran to the east , Kuwait and Arabian Gulf to the south , the research problem concerns the absence of such multimodal system and the country regions do not make benefit from its economies , the research illustrated some of the relevant international conventions on multimodal transport concerning the transit of cargo and containers across countries , it also described the land transport and railroad transport across Iraq as it is the main hinterland state for Latakia and Tartous , the research concluded that the legislative and organizational framework could be applied to the proposed hypothesized project for Latakia and Tartous, it also concluded that the transport infrastructure could positively participate to the project despite the current deterioration in its technical and operational conditions due to the political events in the region , among the most important recommendations , for the mentioned countries to join the relevant international conventions or hold bilateral or multilateral conventions on multimodal transport , moreover , working on the improvement and development of land and railroad transport in the region for achieving multimodal transport high performance.
This study includes a work to improve the performance of brake shoe which is used in rail, where it depends on heat treatment to brake shoe which is made of gray cast iron, which makes the occurrence of the largest dissolve of the carbon in austeni
te. It allows obtaining a new crystalline structure of cast iron which has high toughness and high wear resistance. It increases the life service of brake shoe, and increases safety factor on rail way.
The test results were compared to the heat treated samples with samples that were not subjected to heat treatment, and treatment processes gave good results that allow to apply these operations on bits currently used on the railway network in Syria.
In this paper, the effects on the wave shape will be studied according to the track permanent
components such as rail, sleepers or ballast.
The results show there is a step change in stress on the ballast layer. It is important to prevent
the step
change in the track characteristic module over 20%. It is also useful to provide a
transition zone to allow the gradate changing in track characteristic module.
