Management of vertical hydro physical barrier when
In the article the idea is developing that the essence of land reclamation is control of soil processes. It is shown that this idea has a decisive significance not only for reclamation of agricultural lands but also when creating artificial soil structures for which it is important to determine a laminated structure and properties of layers in advance. Laminated soil structures are used for development of park lawn economy, when establishing «green parking» for automobiles, for establishing «green roofs» on buildings and constructions when planting trees and bushes for urban infrastructure, in greenhouses, when growing plants in the protected ground etc. There are given results of modeling a hydro physical barrier and analysis of their functioning. The proposed approach makes it possible to create artificial soil structures with the assigned characteristics. The idea of control of water regime and barrier characteristics of the artificial soil structure allows providing its effective functioning during the whole operational period of such objects. For the variant «Green roof» the following structure is proposed: upper layer - soil substrate on the basis of quartz washed river sand (20% of the volume) with adding peat litter (40% of the volume) and fine-grained (15 mm) pearlite (40% of the volume). Irrigation mats, for example, ECO-MAT16 (Hunter). Separate leveling sand layer 15...20 mm. Anti-root layer of geotextile. Drainage layer, Floradrain, system of heating. Such a decision is considered optimal according to its technological and operational qualities and it also helps to create and maintain water-air and feeding regimes necessary for plants. This approach to creation of multi-layer artificial structures and management of the work of total hydro physical barriers are realized by us) together with I.V. Korneev and A.N. Daniljchenko) in the project «GREEN ROOF» worked out in 2011 for the esplanade of the tower «ISETJ» in Yekaterinburg.