Device to seal areas of adjacency of metal-concrete in barrier structures of protective facilities

FIELD: construction.

SUBSTANCE: device to seal areas of metal-concrete adjacency comprises a plate steel part of protective sealed doors, hatches or flanges of tubular inputs of engineering utilities with holes for injectors. Holes are evenly arranged along the steel part. The device comprises a source of DC current with a rheostat or an autotransformer and an electromagnet. The electromagnet is installed on the steel part, with a coil in the form of a winding from current-conducting wire with insulation and ends of this wire, closed to poles of the source of DC current. The coil of the electromagnet is arranged on a crossbeam of the U-shaped magnetic conductor. The lower part of each stand of the magnetic conductor fully complies with the shape, volume and geometric dimensions of the inner space of the hole for the injector. The height of the lower part of magnetic conductor stands is equal to thickness of the steel part. The distance between centres of cross sections of the electromagnet magnetic conductor stands is equal to double distance between centres of holes for injectors.

EFFECT: device makes it possible to increase quality of sealing, to reduce power inputs and consumption of materials.

3 dwg

 

The invention relates to the construction and can be used for repairing cracks and sealing leaky junctions of concrete to metal products of inputs (doors, hatches) and engineering services in walling protective structures of the Armed Forces and Civil defense (command posts, shelters, fallout shelters, and others), in which the operating personnel or the population sheltered from the effects of dangerous and harmful factors affecting weapons of mass destruction (nuclear, chemical, and other).

A device for sealing junctions metal-concrete walling protective structures by injection into cracks and looseness of the magnetic sealing in the form of mixtures of cement, epoxy and other solutions with ferromagnetic filler (e.g., magnetite) and retain them in the area of leaks before curing parameters of a magnetic field, comprising a steel plate detail protective hermetic products (doors, hatches or flanges of inputs in the construction of utilities heat, water, gas, electricity and ventilation) with holes for the injectors and the injectors for injection of leaks in places of an adjunction of a metal-concrete magnetic sealing compounds, lamellar oxide-barium or other magnets, set�Lenno on the surface of metal parts in between injectors [1, 2].

Closest to the proposed is a device for sealing junctions metal-concrete walling protective structures [3], comprising a steel plate detail defensively-hermetic designs of doors, hatches or flanges of engineering services, the holes in it for the injectors and the injectors that are installed in the openings for discharge through them in the event of leakage junctions metal-concrete magnetic sealing mixture, evenly spaced on the surface of steel parts with a protective hermetic structures of inputs or inputs at the same distance between each other, a constant current source with control of magnitude of current (resistor or autotransformer) and an electromagnet, mounted on the surface of steel parts with a coil in the form of a coil of conductive wire with insulation and the ends of this wire, closed pole of the DC source. In this case, the solenoid coil is located on the crossbar of the U-shape magnetic core round or rectangular racks which are mounted on the surface plate steel parts between two adjacent injectors at the same distance from each fitting.

However, the specified device for sealing junctions metal-concrete cladding� protective structures cannot create the necessary parameters of the magnetic field (0.01 to 0.02 T [2, 3]) in the area of cracks and discontinuities of metal-concrete, along with the required magnetodiode and retaining effective volume of the magnetic sealing mixture, when the thickness of the steel plate metal parts protective hermetic designs is 8-10 mm. or more as a result, the injected magnetic sealing the mixture is partially fills cracks and defective places, especially in remote locations space zone indicates that the metal-concrete, and flows from them under the influence of gravity. The increase in the discharge pressure of the magnetic sealing mixtures provokes leakage from leakages and increases the flow of sealing material. Significantly, the increase and the energy consumption of the sealing process. The required increase of the magnetic field necessary to create also known as h and holding power in the magnetic volume of the sealing mixture is impossible for two reasons. First, to create the desired characteristics of the magnetic field coils should be made with a very large number of turns, and its dimensions are, unfortunately, limited by the length of the U-shaped rack of the magnetic circuit and the distance between the injectors. Secondly, it is impossible in a steel product with a thickness of 8-10 mm to create the desired magnetic saturation in the magnetic flux of hermeti�yuusha mixture was necessary value also known as h and holding forces. To explain this statement we give a brief physical picture of the magnetic saturation of plate steel parts under the influence of a constant magnetic field [4]. In the amount of any ferromagnetic (steel is a ferromagnetic material) is formed of a large number of areas of spontaneous magnetization, which in the literature are called domains. Adjacent domains are separated by layers, called domain walls. In these layers there is a gradual transition from one direction of magnetization to another. In the absence of external source, the resulting magnetic field in the metal is zero, because equal values of the magnetic moments of adjacent domains because of their multi-directional. The appearance of external influence in related domains (from an external source, e.g., an electromagnet) the magnetic field has the same direction, causing the walls between domains gradually reduced, and the increase in the number of domains with the same direction of the magnetic field. The thickness of the magnetized layer of metal (from the system side of the electromagnet) gradually increases proportional to current in the coil of the electromagnet. In principle, when a very large amount of current in the coil to reach full magnetic saturation thickness meta�La, but practically specified magnetic containment system indicates that the metal-concrete, adopted us as a prototype, walling protective structures complete saturation of the metal with thickness of 8-10 mm can not provide due to the need of increasing the number of turns of the coil and its dimensions, as mentioned above.

The invention solves the task of providing a higher quality of work on sealing leaks in places of an adjunction of a metal-concrete walling protective structures, reduced power consumption and flow rate of sealing materials.

This technical result in the device for sealing junctions metal-concrete walling protective structures containing steel plate detail defensively-tight doors, hatches or flanges of tubular engineering services, had a hole in it for injectors and injectors, for injecting through them in the event of leakage junctions metal-concrete magnetic sealing mixture equally spaced along the steel parts with equal distance between them, a constant current source with a resistor or autotransformer and an electromagnet mounted on a steel part with a coil in the form of a coil of conductive wire with insulation and it ends� wire, closed pole of the DC source, wherein the solenoid coil is located on the crossbar of the U-shape magnetic core round or rectangular racks which are mounted on the surface plate steel parts between two adjacent injectors, is achieved in that the lower part of each frame of the magnetic circuit of the electromagnet must fully comply with the shape, volume and dimensions of the internal space of the hole for the injector and consolidate it with the existing tolerances and connections. In this case the height of the lower part of the uprights of the magnetic circuit is equal to the thickness of steel metal parts and the distance between the centers of cross sections of the poles of the magnetic circuit of the electromagnet is equal to double the distance between the centers of the holes for the injectors.

Horizontal surface of the ends of the lower parts of the uprights is a U-shaped magnetic circuit, which in principle are the poles of the electromagnet coincides with the inner surface of the metal embed steel parts along which the magnetic sealing the mixture in the process of conducting a leak-proof works is transported in leak junctions metal-concrete under the influence of the discharge pressure and also known as h-power. In this regard, any electromagnet with a coil 1800 turns of wire sew dia�a 1.2 mm ETP will provide in the space of defective places of the magnetic field with the required parameters of magnetic induction and also known as h-power, since the poles of the electromagnet, in the form of a screwed in metal mortgage detail of the uprights is a U-shaped magnetic circuit, in the process forcing the sealing mixture in contact with it, to produce a closed magnetic system with a closed magnetic flux (see act test). As a result, there is no need to create a powerful electromagnets for magnetic saturation of the metal.

To ensure the free-flow magnetic sealing the mixture into the cracks and space indicates that the metal-concrete in the process of organizing leak-proof works the lower parts of the uprights of the magnetic circuit, having equal-hole shape and size, must be equal to the thickness of steel metal parts. If the height of the lower parts of the uprights will be greater than the thickness of the metal parts, they will be inserted into the space of the defective places that will cause increased resistance to the flow of the sealing compound. If less may decrease the quality of reliability of fastening of racks of the magnetic circuit on the metal parts.

Fabrication of U-shaped magnetic circuit with racks, the distance between cross sections, which must be twice the distance between adjacent holes shall install the uprights of the U-shape magnetic core in the holes for the injectors and over�boards mount in them.

Fig.1 shows a device for sealing junctions metal-concrete walling protective structures (General view) in the form of steel metal parts 1 box of protective airtight doors with 2 holes for injectors 3, the electromagnet 4, the constant current source 5 with a rheostat or variable transformer.

Fig.2 shows a device for sealing junctions metal-concrete walling protective structures (longitudinal section) in the form of a fragment of metal parts made of steel 1 box of protective airtight doors with 2 holes for the injectors and the injector 3, the electromagnet and the coil 4, the constant current source 5 with a rheostat or variable transformer, the magnetic cores 6 with the lower parts of the uprights 7 of the U-shape magnetic core.

An example of a specific implementation of the device for sealing junctions metal-concrete walling protective structures depicted in Fig.3, includes an electromagnet 1 with a U-shaped magnetic core and the coil in the form of a coil of wire with the insulation and the ends closed on the pole of the constant current source 2 with a rheostat 3 (or autotransformer type Latr), steel plate detail 4 protective airtight doors, hatches or flanges of tubular engineering services with evenly raspolozhennymi her holes 5 to install injectors 6, through these cracks and leaks junctions metal-concrete is pumped magnetic sealing compound (for example, epoxy resin or the water-cement mixture with a fine powder of magnetite or other ferromagnetic filler), and the uprights of the U-shape magnetic core 7, in which each of the lower part 8 is fully consistent shape, size and dimensions of the internal space of the hole (for the injector) and is fixed in it based on the known classes of compounds, and the applicable tolerances. In this case, the height of the bottom of each rack of the magnetic circuit of the electromagnet is equal to the thickness of the steel plate parts, and the distance between the centers of cross sections of the poles of the magnetic circuit of the electromagnet is equal to double the distance between the centers of the holes for the injectors. The required parameters of the magnetic field (intensity and magnetic flux density) are controlled by the ammeter 9 on the magnitude of the current in the winding of the electromagnet in accordance with the data of experimental studies (see Annex - act testing device for sealing junctions metal-concrete walling protective structures and determine the parameters of the magnetic field on the surfaces of the steel plate parts with different thicknesses).

The technology of sealing of leaks at the points of contact m�Tull-concrete walling protective structures using the proposed device is organized as follows. The injection of the magnetic sealing mixture for cracks and looseness of contact metal-concrete is made in a bottom-up, starting from the very bottom of the fitting, which should be placed between the uprights of the U-shape magnetic core of the electromagnet. The injection is performed until, until the sealing compound will not appear in the hole for the injector located above the extreme stand is a U-shaped magnetic circuit of the electromagnet. Then, the discharge process is terminated prior to the setting of the magnetic sealing mixture in the discontinuities of the contact metal-concrete under the influence of a magnetic field, thereby avoiding draining from leaks and accelerates the curing process of the mixture.

After that the hole through which leakage occurred, it is cleared of sealing the mixture in it, as well as in the other hole for the injector located above the rack mounted U-shaped magnetic circuit of the electromagnet so that between them there was another hole for the injector, through which will be made next discharge cycle of the magnetic sealing mixture in the event of leakage of metal-concrete. The repetition of cycles of injection and curing of the magnetic sealing mixture leaks from the bottom-up organized process g�rotiserie leaky places of metal-concrete walling protective structures.

Then the leak-proof quality of the work is checked by testing of protective structures for leaks (usually a method to determine the pressure drop of air pumped into the building ventilation system, for regulatory time appropriate to the method of the normative document [2]).

To enter the magnetic sealing the mixture in the looseness of contact metal-concrete using conventional mortar pumps and hoses, and a special piston or screw syringes, able to create in the sealing mixtures of the discharge pressure in the range of 180-200 kPa.

Technical and economic efficiency - ensuring a higher quality of sealing of leaks at the metal-concrete, reduce the consumption of materials and energy consumption due to the increase of the magnetic field, also known as h and holding power in the magnetic volume of the sealing mixture.

Sources of information

1. Bocharnikov, A. S. Dispergouvannya composite materials based on cement binders for the protective structures: monograph / A. S. Bocharnikov. Edited by A. D. Korneev. - Lipetsk: lstu. - Pp. 202-203. - In Najah. Russian Academy of architecture and construction Sciences. Central branch.

2. Instructions for sealing technology of enclosing structures special structures (BCH16691MOCCCP). - M., 1992. P. 48-51. - In Najah. The Ministry of defence of the CIS.

3. Bocharnikov, A. S. Magnetic sealing epoxy composites with fillers from waste products: monograph / A. S. Bocharnikov, M. A. Goncharov, A. V. Glazunov. Under the editorship of S. A. Bocharnikova. - Lipetsk. Publisher lstu, 2009. - S. 119. - In Najah. Russian Academy of architecture and construction Sciences. Central branch.

4. Bocharnikov, A. S. Dispergouvannya composite materials based on cement binders for the protective structures: monograph / A. S. Bocharnikov. Edited by A. D. Korneev. - Lipetsk: lstu. - S. 205. - In Najah. Russian Academy of architecture and construction Sciences. Central branch.

Device for sealing junctions metal-concrete walling protective structures containing steel plate detail defensively-tight doors, hatches or flanges of tubular engineering services, with holes in it for injectors, evenly spaced around the steel parts with equal distance between them, a constant current source with a resistor or autotransformer and an electromagnet, the mouth�blenny on steel detail with the coil in the form of a coil of conductive wire with insulation and the ends of this wire, closed pole of the DC source, wherein the solenoid coil is located on the crossbar of the U-shape magnetic core round or rectangular racks which are mounted on the surface plate steel parts between two adjacent injectors, characterized in that the lower part of the magnetic circuit of each rack is fully consistent shape, size and dimensions of the internal space of the hole for the injector and secured therein with the existing connections and operating tolerances in this case the height of the lower part of the uprights of the magnetic circuit is equal to the thickness of steel metal parts and the distance between the centers of cross sections of the poles of the magnetic circuit of the electromagnet is equal to double the distance between the centers of the holes for the injectors.



 

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3 dwg

FIELD: construction.

SUBSTANCE: first, size and depth of a karst formation under a building foundation is determined; then, the first type of wells is formed along the building perimeter at least in one row; injectors are introduced to each of the above wells and a hardening solution is injected into well walls. Wells are formed so that at injection between adjacent wells in the row there can be formed intersecting zones of compacted soil; in the lower zone of loose soils of geomassif, which are located around a karst formation caving zone, there formed are at least two rows of wells of the second type, which are located in an arch periphery line, into which there also pumped is a hardening solution by means of injectors, so that wall-shaped structures are formed by means of the hardening solution throughout the height of the karst formation out of intersecting solid elements that are flat as to vertical direction. Then, in the lower zone of loose soils of geomassif, which are located above dome-shaped arch of the karst formation caving zone, there formed is the third type of wells located along the imagined surface of the dome-shaped arch of the karst formation and going beyond the perimeter of the zone enveloped with wells of the second type, to which there also pumped is the hardening solution by means of injectors, so that a dome-shaped massif of at least one layer of intersecting flat-parallel elements is formed above the karst formation with formation of compacted geomassif above the dome-shaped massif. After that, at least one well of the fourth type is formed with its opening to the cavity of the karst formation, which is filled with the hardening solution, with formation in the cavity of the karst formation of a volumetric elements; at availability of suffusion processes in the karst formation, to the karst formation cavity there added is at least one flexible envelope, to which the hardening solution is pumped, after hardening of which the soil is additionally compacted above layers of flat-parallel elements of the dome-shaped massif by pumping of the hardening solution in a downward or upward direction to cracks and cavities formed during formation of a dome-shaped arch out of flat-parallel elements. Cement mortar and/or raw mix containing a siliceous component, a gas-forming agent and a mixing agent is used as a hardening solution.

EFFECT: improving reliability of reinforced geomassif; reducing labour input and material consumption at its formation.

8 cl, 4 dwg

FIELD: construction.

SUBSTANCE: method includes injection of a sealing substance, providing for damage of soil structure. Soil compaction is carried out by development of bodies in it with specified dimensions, shapes and properties from non-Newtonian liquid, which does not change the ratio of its components under load and preserves shape given to it with absence of external impact, which is injected by pressing into soil with impact loads applied to its surface. Soil is compacted by its displacement by external surface of developed bodies from spaces that they occupy. The device comprises a working element and a facility to apply impact load to it, made of a guide pipe, into which a rod is inserted as capable of movement along it and contact with the working element. The working element is made in the form of a rod with a conical point at the end and is inserted into the guide pipe as capable of limited longitudinal displacement in it. The conical point of the rod protrudes from the guide pipe. On the working element there is an assembly that excludes its drop-out from the guide pipe.

EFFECT: increased density of soil by introduction of non-Newtonian fluid into it in the mode of periodical impact loads and increased efficiency of a device due to elimination of the possibility to damage a well with a rod and deviation of the working element from the specified path.

5 cl, 1 dwg

FIELD: road construction.

SUBSTANCE: device has towed device with platform, connected to moving gear, tank for reinforcing liquid, force pipes with bars with apertures in lower portion. Bars are made of conical shape with screw blades, mounted on a platform made in form of slides, and radiuses of bars effect overlap. In back portion of platform a screw is mounted. Tank for reinforcing liquid is placed in front portion of platform and by gear pump is connected to distributing comb, each force pipe, which through locking armature is connected to appropriate bar. Bars in amount no less than three are kinematically connected to each other, and to shaft for drawing power from moving gear, to screw and to gear pump for feeding reinforcing liquid.

EFFECT: higher efficiency.

4 dwg

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