Vol. 47 No. 2 (231) (2013)

Iron ore deposits of central Iran are considered in this article. Side by side with large exploited mines, numerous displays are revealed there. For the purpose of choosing perspective ones it is offered to spend their estimation using the method of analogy and models of the regression equations.

In this article the issues to define the shear strength's residual resistance parameters of swelling soils by simplified method have been considered. These parameters are established on one sample of soil by repeated tests of gradual unloading.

Based on the data obtained from the previously conducted investigations and field tests, new invetigations have been conducted with the purpose to restore the trouble-free operation of Yerevan Underground and with the aim to drawdown the level of groundwater in the vicinity of some stations. Calculations by hydrogeological methods have shown that capasity of new drainage will be 445.5 L/s that will be discharged by means of gallery. Construction of the new drainage will contribute to steep drawdown of groundwater static level (it will be 3–5 m below the railroad track), particularly in the distance of 50–70 m from the existing drainage that will provide safe and long-lasting operation of the underground.

Taking into account the role and significance of precipitation in conditions of our low water-level country, water accumulation and usage during high waterlevel season, for productive usage of water resources and planning, was the aim to study and evaluate the regime of atmospheric precipitation and spatial-temporal regularities in Syunik Marz. To solve this task the results of observations of precipitation of Syunik Marz (1913–2010) were collected, worked out and analysed, were analysed the features of spatial-temporal distribution of precipitation of the region.

The choice of territorial unit is becoming an important issue for the assessment and planning of recreational potential, in the frame of which the assessment should be done. A more convenient unit in a mountainous area can be a river basin. The upper and middle flow of the Akhuryan River were studied and estimated.

One of the most important actual problems of Serviceology is the definition of essence human needs, their classification and the creation of their satisfaction system. To solve these problems it is suggested to use systematic approach which will give the opportunity to create sustainable system of human needs satisfaction.

Tavush Marz is particularly separated from other regions with its economic problems, natural-geographical conditions, economic and political-geographical positions. On the base of analysis of statistic data the issues of formation and development of rural settlements network, its regional differences and problems of social-economic development are analyzed in article.