Along with other advanced geotechnical technologies for the exploration of underground space, electro-discharge technology (EDT technology) is one fundamental in field construction auger-injection microcircuits, as well transformation properties foundation soils weak physical and mechanical characteristics. At same time, having significant differences compared to methods subsurface development ...

Worm gear drives possess several advantages in comparison to other types of transmissions. Some the most important are: high ratio, compact design and vibration damping. Therefore, author’s team focused within framework research presented on creating opportunities improve another very characteristic feature worm gears: load capacity. During process investigation, optimization procedures have be...

The main factors affecting the load-bearing capacity of new and damaged stone structures are given. One most common types damage to buildings is their cracking. According statistics, frequent reasons for formation cracks in are: uneven settlement foundations, load on structures, temperature deformations, moisture deformations. walls depends compressive strength bricks mortar, but it difficult m...

field capacity, fuel consumption and drive wheel slippage in massey ferguson (mf399) tractor with standard and liquid ballasted (630 kg) axle load and at 4wd mode was evaluated and compared. the tests were conducted at the experimental station, college of agriculture, shiraz university, in a field with clay loam soil at average moisture content of 18% d.b. the experiment was of a randomized com...

assessing the behavior of composite structures which are subjected to impact loads is one of the important subjects in the field of mechanical sciences. using thin-walled tubes which collapsed and absorbed the impact energy is a well-known method to prevent damages to the other parts of the structures. in this paper, deformations, crushing length, peak load, mean force and energy absorption cap...