The device for year-round cooling of permafrost soils is designed to ensure the construction and operation roads railroads in tundra zone. It includes pipes buried ground near roadbed, a wind turbine powering an electric current generator, absorption-type unit, exhaust fan ensuring flow atmospheric air through pipes. During long cold winter, laid provide deep freezing beneath thick layer snow. ...

Thermal energy counts for a large part of the total consumption. To reduce fossil fuel consumption heat and cold generation, different low temperature sources have been considered. Water networks considered as amount water flow through it. measure thermal potential system, this paper provides method in unsteady state to determine systems made buried pipes. The model has applied raw supply syste...

Buried infrastructure forms the backbone for economic stability, growth, competitiveness and productivity in modern society is a critical element of urban environments. The pressures on buried will only increase as population increases, which drive demand require changes. This means that maintenance existing infrastructure, well building new capacity, vital to meet demands. Currently, there lac...

The Trenchless Technology Center, in collaboration with industry associations, has developed comprehensive, yet easy to use interactive software for the evaluation of alternative construction methods that can be employed in the installation and rehabilitation of buried pipes (gravity driven and pressurized) and manhole structures utilized in municipal applications. The decision support software...

Automatic inspection of pipelines has great potential to increase the efficiency and objectivity of pipeline inspection. 3-D pipeline reconstruction can provide a valuable addition to automatic pipeline inspection. We present a system which can reconstruct the inner surface of buried pipelines from multiple fisheye images captured inside the pipes. The reconstruction output will facilitate pipe...

GPR (Ground Penetrating Radar) is one of subsurface sensing technologies, which has been used intensively since 1980s. Due to rapid development of both hardware and software, its possibilities have been considerably extended resulting in widening the area of its applications. While such applications as to detection of buried pipes and cables, archaeology and geology are established category, ne...

A buried pipeline can buckle upwards if there is not enough resistance to movement. Both the uplift resistance (the maximum force per unit length) and the mobilisaion distance (the distance the pipeline has move before the maximum force is reached) are important in design. Tests on pipes in several soils were carried out at 1 g at full scale and in a centrifuge at 10 g and 1/10 scale. A compari...