Experimental thawing of permafrost soils in bases of reconstructed main building of the Chita-I Thermoelectric Power Plant

Conclusions 1. Compaction of thawed soils takes place directly during the thawing process or in the first 10–35 days after it. The thawed soils do not require subsequent compaction and, as regards the load-carrying properties, they are comparable to similar rocks in a naturally thawed state.2. The specific electric energy consumption for thawing 1 m³ of permafrost soils in bases is 25.2 kWh, and it is a fundamental characteristic in the design of industrial thawing of soil bases for determining the spacing between the heaters their capacity, and the thawing period.3. In test thawing, the number of ground mark vertical lines and the number of marks in each vertical line should be determined from the degree of heterogeneity of the frozen soils as regards the collapsibility in plan and section. For permafrost soil conditions similar to those of the construction site of the Chita-I plant, the optimal solution is to lay one vertical line per 100–120 m² of thawing area, and to use in each vertical line not less than one mark per 5 m of section of thawed permafrost soils."Atomteploelektroproekt" Institute, Novosibirsk. Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 5, pp. 9–10, September–October, 1986.     

Hardware for new methods of radiation control

Designs of the prototypes of two dosimetry systems that are widely used in the modern international practice of the dosimetry of ionizing radiation, in one of which the ability for real-time measurements of radiation field parameters exists, are presented. The nature of optically stimulated luminescence (OSL) and radioluminescence (RL), on which the operation of the systems is based, is described. The results of tests of prototypes of OSL and RL dosimetry systems are given. Key specifications and advantages over traditional thermoluminescent systems are identified for the Korund-101-OSL OSL system prototype.     

The Korund-201-TL dosimetry system for radiation monitoring

This paper presents a brief overview of existing personal dosimetric systems that are based on thermally stimulated luminescence. The new Korund-201-TL automated thermoluminescence system is described.     

Metrological analysis of type MTs-3 cesium frequency reference

Measurement Techniques -     

Plasticity of Additionally Hardened Materials under Cyclic Loading

Strength of Materials - Mathematical simulation of elastoplastic deformation of additionally isotropically hardened materials under proportional and nonproportional cyclic loadings is examined. A...     

Polytetrafluorethylene in High-Dose EPR Dosimetry for Monitoring Radiation Technologies

Russian Journal of Nondestructive Testing - A brief list of the main directions in radiation processes using ionizing radiation in a wide range of doses and energies is given. The necessity of...