The method of reconstruction of fire mineralized strips

 

(57) Abstract:

The invention relates to the field of fighting forest fires, and in particular to methods of preventing the spread of forest ground fires gasket and periodic fire charge promotion mineralized bands. The objective of the invention is to improve the reliability of the method. The method is as follows. Before the reconstruction of the mineralized strips laid in two parallel furrows with intact soil layer between them, combustible materials found on the surface of this layer, moisturize with water with addition of surfactants. Then produce the excavation of one of the furrow and laying it in the adjacent furrow, while falling asleep combustible materials on the surface of intact soil layer. Hydrated and thus protected from drying poured from above ground flammable materials are subjected to accelerated biological decomposition and cease to be agents of flameless combustion, thereby increasing the reliability of the reconstructed band.

The invention relates to the field of fighting forest fires, and in particular to methods of prevention rasprosterlas.

The known method of reconstruction (ponovleniya) mineralized bands, consisting in periodic removal of soil from the furrows with the formation of spoil material on the sides of the furrow [1].

The disadvantage of this method is the low reliability renewed with the band due to lack of backfill ground formed on the surface of the pile layer of combustible materials in the form of herbal vegetation and litter of leaves, needles, small branches. As a result, after several years of efficient (able to contain the fire) band width is reduced almost to the width of the furrow that creates the probability of fire in the adjacent forest area. In addition, repeated excavation of the same furrow leads to its deepening and, consequently, to the development of water erosion processes.

The closest in technical essence and the achieved result to the invention is a method of reconstruction of the mineralized strips laid in two parallel furrows with intact soil layer between them, consisting in periodic excavation of one of the furrow with the laying of its adjacent furrow, and with a simultaneous filling the excavated soil intact soil nadezhnosti, because on the surface covered with soil intact soil layer are organic materials in the form of herbal vegetation, leaf litter, pine needles, etc. that a long time do not decompose, are conductors of flameless combustion in phase and reduce the effective width of the reconstructed mineralized strips.

The objective of the invention is to improve the reliability of the method of reconstruction of the mineralized strips.

The technical result in the way of reconstruction of the mineralized strips laid in two parallel furrows with intact soil layer between them, consisting in periodic excavation of one of the furrow with the laying of its adjacent furrow, and with a simultaneous filling the excavated soil intact soil layer, is achieved by the fact that before falling asleep intact soil layer is subjected to hydration in an aqueous solution of surface-active substances.

The method of reconstruction of the mineralized bands is as follows:

Before the reconstruction of the mineralized strips of forest combustible materials located on the surface of intact soil between the furrows, SWL is the RF 2170124), scrip tank filled with water with the addition of a small amount (0,3-0,6%) surfactant - sultanol NP-1. Then, using the combination with a traction vehicle fire plow PLA-1,3 produce the excavation of one of the furrow and laying it in the adjacent furrow, while falling asleep excavated soil found on the surface of intact soil layer combustible materials which, when present in hydrated form, are biodegradable and in a relatively short period of time, cease to be conductors of burning. Shorten the decomposition is facilitated by the presence in water of sulfinol NP-1, through which it becomes an increased ability to wetting of surfaces and penetrates deep into the pores of combustible materials. Drying of combustible materials is prevented covered them with a layer of soil. Bringing conductors flameless combustion in negative state is equivalent to increasing the width of the reconstructed mineralized bands, and consequently increase its ability to prevent the spread of a forest fire.

Sources of information

1. Red M, forest Protection. M, Forestry, 1981, S. 68.

2. A. S., laid in two parallel furrows with soil layer between them, consisting in periodic excavation of one of the furrow with the laying of its adjacent furrow with simultaneous filling the excavated soil intact soil layer, characterized in that before falling asleep intact soil layer is subjected to hydration in an aqueous solution of surfactants.

 

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