The way to create an ice load-carrying platform

 

(57) Abstract:

The invention relates to the field of hladotehnika and can be used to create ice platforms increased load-carrying ability. The method consists in the formation of the ice cover of the ribs through the formation of the ice cover in the grooves in the longitudinal and transverse directions by a depth less than the thickness of the ice and subsequent drilling formed in the cells of the ice cover through holes, at least more than one, through which under the lower edge of the ice pumped gas, the hole is closed, after which the ice cover is exposed to low temperature t<0With within the time required to equalize the temperature on the upper and lower edges of ice cover. What's new is that in the beginning under the lower edge of the ice pumped the gas, and then formed under the ice of the gas cavity fill supercooled t<0C, lighter than water, fine with good adhesion to ice and heat insulation material, after which the hole in the ice open. The technical result of the invention is to increase the carrying capacity of the ice platform. 1 iform increased load-carrying ability.

The prior art of the claimed invention known way to create a load-carrying platform high load-carrying capacity due to the formation of ice cover in the ribs by forming in the ice cover of the grooves in the longitudinal and transverse directions by a depth less than the thickness of the ice with subsequent drilling formed in the cells of the ice cover through holes, through which under the lower edge of the ice pumped gas, the hole is closed, after which the ice cover is exposed to atmospheric low temperature (t<0C) within the time required to equalize the temperature on the upper and lower edges of the ice cover (RU 2161673 C2, 19.10.98).

The disadvantage of this method is a slight increase in load-carrying capacity of the ice platform.

The essence of the invention is to create an ice platform, ensuring safe transport and storage of goods.

The technical result obtained by carrying out the invention, is to increase the carrying capacity of the ice platform.

The essential features characterizing the invention.

Ogran what redstem the formation of the ice cover in the grooves in the longitudinal and transverse directions by a depth less than the thickness of the ice and subsequent drilling formed in the cells of the ice cover through holes, at least more than one, through which under the lower edge of the ice pumped gas, the hole is closed, after which the ice cover is exposed to low temperature (t<0C) within the time required to equalize the temperature on the upper and lower edges of ice cover.

Distinctive: first, under the lower edge of the ice pumped the gas, and then formed under the ice of the gas cavity fill supercooled (t<0C), light (lighter than water), fine, with good adhesion to ice and heat insulation material, after which the hole in the ice open.

It Is Known (Centuries Bogorodsky, V. P. Gavrilo. Ice. The physical properties. Modern methods of glaciology. - L.: Gidrometeoizdat, 1980. - 383 C.) that the thickness of the ice cover, the ice temperature is changed from t=0oWith (lower surface) to the ambient temperature. In accordance with this pattern changed and physico-mechanical properties of ice. So at t=0oC modulus of elasticity and tensile strength of ice on the curve is equal to zero. With decreasing temperature is the increase in strength properties of ice [2]. Such anisotropy of physical-mechanical properties of ice PVA compared with samples of ice, in which the thickness of the temperature is constant and equal to the ambient temperature.

To increase the strength of the ice by placing insulating layer under the bottom surface of the ice cover. This will reduce the temperature gradient across the thickness and to decrease the average temperature of the ice, which, in turn, will increase the tensile strength of ice and bending strength of the platform. It is obvious that the carrying capacity of the platform can be increased also by increasing ice thickness and placement under the ice light material, creating a positive buoyancy force.

The method is as follows.

In ice drill holes, through which under the bottom surface of the ice pumped gas, e.g. air. To prevent flow of air under the ice in advance via nimorazole works on ice increase ribs in both longitudinal and transverse directions. Then through the same holes in the ice, under the ice through which pumped the air trapped under the ice of the air (gas) cavity fill supercooled, light, fine, possessing insulating properties of a material, such as wood OPI is atmospheric air. After filling the cavity material, the compressor is turned off. The water mixes with the material fills the cavity and freeze. Fine structure of the material, its good adhesion to ice will build up under the ice durable composite layer of ice that, in General, to increase the thickness of the ice cover and its insulating properties will reduce the temperature gradient across the thickness of the ice. In addition, positive buoyancy nevrogennogo layer will lead to the appearance of additional forces to maintain operating on the platform. As a result of its load-carrying capacity will increase.

The invention is illustrated graphically, where the drawing shows the circuit implementation.

In ice cover 1 using laboratroy machine at an equal distance from each other choose the grooves in the longitudinal 2 and 3 in the transverse directions. The depth of the grooves h1must be less than the ice thickness h2. Due to reduced ice thickness in places of sampling and, consequently, increase thermal conductivity of ice under the ice cover due to low ambient temperature start to numerate ribs 4. Thus, under the ice formed a closed perimeter region 5. Then in ice drill response material 8, possessing the above properties. Then disconnect the feed compressor 9. Water 10 will be received in the cavity 7 and will freeze, which will lead to the achievement of the claimed technical result.

A method of creating ice bearing platform, which consists in the formation of the ice cover of the ribs through the formation of the ice cover in the grooves in the longitudinal and transverse directions by a depth less than the thickness of the ice and subsequent drilling formed in the cells of the ice cover through holes, at least more than one, through which under the lower edge of the ice pumped gas, the hole is closed, after which the ice cover is exposed to low temperature t<0C for the time required to equalize the temperature on the upper and lower edges of the ice cover, wherein the first under the lower edge of the ice pumped the gas, and then formed under the ice of the gas cavity fill supercooled t<0C, lighter than water, fine with good adhesion to ice and heat insulation material, after which the hole in the ice open.

 

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FIELD: watercraft.

SUBSTANCE: invention can be used in designing ramp and propulsion and steering gear and their hydraulic systems. Novelty in proposed water craft is that it is furnished with streamlined carrying frame for fastening devices of propulsion and steering complex installed in hull aft part and formed by two pairs of rigid longitudinal beams hinge secured by inner ends of aft sheet of hull in zone located under loading side coupled by flexible cross beams in each pair and support bar between pairs. Hydraulic heads of propulsors are hinge-mounted on outer ends of each pair of longitudinal beams, being secured on said beams to form additional cross tie between beams. Carrying frame is furnished with power hydraulic cylinders connected with hydraulic system and installed to control position of heads and loading side by turning carrying frame in aft sheet hinge joints. Body of each is provided with upper roller support, being rolling support for each hinged loading side at its opening, and lower platform being rigid base interacting with ground at resting of hinged loading side on head body in loading position of loading side. Novelty in hydraulic system of watercraft is that it is furnished, in additional to propulsor control hydraulic cylinders, with hydraulic cylinders for setting ramps, changing thrust vector, fixing loading side and locking carrying frame. Each hydraulic cylinder, including propulsor position control hydraulic cylinders, are supplied through parallel hydraulic lines connected with main line, with electric control in each line. Invention contains description of design peculiarities of each line providing required modes of operation of watercraft.

EFFECT: improved performance of watercraft and creating of hydraulic system providing required mode of operation of watercraft.

9 cl, 11 dwg

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