(57) Abstract:Usage: in providing ferry-bridge crossing techniques through water obstacles. Essence: ferry-bridge machine includes carrying case deck type with longitudinal beams, the roadway butt beams and side pontoons. Butt beams are connected with the bearing housing by means of elastic steel shovnyh plates. The body itself has silovanie nacrelli and side sigouney lining. The machine is equipped with a pedestal in the form of U-shaped beams, supported on the top of the power belt of the spar and the longitudinal beam. The width of the pedestal is equal to the width of the lower power belt power beams. Connecting steel shawanna plate on one side communicates with the lower power belt butt beams, and the other is placed on the sidewall of the pedestal. Interaction sigouney plate with butt beam with pedestal through corners. 1 C.p. f-crystals. 2 Il. The invention relates to the field of providing ferry-bridge crossing equipment over water obstacles and can be used in the development of bearing housings deck type ferry-bridge machines.The purpose of the invention increase nogo machine tools, in Fig.2 fastening elastic ties to butt the beam and pedestal housing.Ferry-bridge machine contains a tracked vehicle 1 (Fig. 1), includes bearing carrier housing, a frame 2 which is equipped with longitudinal beams 3, power top belt 4 which is supported by vertical posts 5. Bearing carrier housing includes an abutment beam 6, the lower power zone 7 through which the elastic connection 8 is connected to the pedestal 9, based on the power of the upper beam 4 longitudinal spars 3 and the longitudinal connection box 10, rigidly trailing silovanie nacrelli 11 and side trim panel 12. Inside the bearing housing, the ends of the elastic ties 8 are rigidly locked in the corners, spring-loaded elastic link 13, is rigidly connected with a power top belt 4. Elastic connection 8 is connected with the lower power belt 7 butt beams 6 advanced through the corners 14 (Fig.2). Similarly, the corners 15 of the elastic link 8 connected with the pedestal 9 whose width approximates the width of the lower power belt 7 butt beams 6.Installing elastic ties 8 is as follows. They overlap the side walls of the pedestal 9 and serves to lock in the lower power belt 7 butt beams 6, with the cat is tikovoi beams 6, the pedestal 9 and the elastic ties 8. The last set and rigidly fixed by welding elastic connection 13. Welded it to power the upper chord 4 and the ends of the elastic ties 8.The invention provides the possibility to improve the reliability of connection butt beams through an elastic Foundation with the frame. This simplifies the design of the elastic ties and how they are fixing in the bearing housing. 1. Ferry-bridge machine, comprising a bearing housing deck type having longitudinal side members, a built-in roadway butt beams and pivotally connected to the housing and the joint beams and the side pontoons, with the butt of a beam connected with the bearing housing by means of elastic connections in the form of a steel shovnyh plates and bearing housing has silovanie nacrelli and side sigouney casing, characterized in that, in order to increase reliability, it has made in the form of U-shaped beams pedestal width equal to the width of the lower power belt power beams, this U-shaped beam pedestal supported on the top of the power belt of the spar bearing housing and the longitudinal beam and the elastic shawanna plate on one side communicates trichomania fact, it is fitted with corners, through which silovanie plate connected to the lower power belt butt beams and with the upper zone of the pedestal.
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
FIELD: building, particularly to construct temporary roads across lakes and other water obstacles.
SUBSTANCE: ice bridge includes cooling plant, pipelines connected to cooling plant. Pipelines are submersed in water and suspended by wire ropes. Cooling plant has reducers for pressure reduction, 10 MPa gaseous nitrogen cylinders and liquid nitrogen cylinders adapted to fill pipelines with liquid and gaseous nitrogen mixture. The pipelines include several coiled sections or formed as straight and finned pipes. The pipelines are arranged in several rows and extend in vertical or horizontal directions. The pipelines are submersed for 0.1-5 m depth and are connected by wire ropes to balloons floating at water surface or to finned pipes driven in ground of river bottom and connected one to another by diaphragms. The cooling plant provides water freezing within 3-5 km range and obtains ice having thickness of 3 m or more.
EFFECT: increased water freezing rate.
FIELD: movable or portable bridges, floating bridges adapted to convey loads over ice cover.
SUBSTANCE: method to transport vehicle having weight exceeding load-carrying ability of ice cover over ice involves moving vehicle having weight not exceeding load-carrying ability of ice cover at resonance speed; moving vehicle having weight exceeding load-carrying capacity to ice cover line when above vehicle having lesser weight has moved away from ice cover line for distance equal to 2/3 of resonance bending-gravity wave length; initiating above vehicle having larger weight movement with above resonance speed. Resonance bending-gravity wave length is determined from where D is cylindrical stiffness of ice plate, ρ and h - ice density and thickness, g - gravity, H - water body depth.
EFFECT: increased load-bearing capacity of ice cover.
FIELD: floating bridges, for instance temporary bridges for load transportation over ice.
SUBSTANCE: structure includes ice blanket in which vertical holes are drilled for the full bridge structure length so that the holes are located from both bridge sides. Reinforced concrete blocks connected to ropes are inserted through the holes so that the blocks are located under the ice blanket. Discs having diameters exceeding hole diameters are connected to upper block ends. Rope lengths are selected to prevent ice blanket movement in upward direction with respect to initial ice position if flexural-gravity waves are generated in ice blanket.
EFFECT: increased load-bearing capacity.
FIELD: bridge crossing equipment; ferries and floating bridges.
SUBSTANCE: proposed motor unit includes displacement hull with joints in sides, engine mounted inside hull and water-jet propeller, two hinged pontoons which are articulated with hull and mechanism for opening and folding the pontoons. Each hinged pontoon is provided with torsion-loaded swivel hydrostatic shield on external side which is articulated with hinged pontoon in area of its bottom; hinged pontoons are also provided with mechanism for turning the shield; this mechanism is made in form of hydraulic cylinder with rod secured in hull of hinged pontoon. Thrust roller secured on end of rod is received by guide of hydrostatic shield.
EFFECT: reduced resistance of shuttle ferry due to improved streamlining of projecting lower part of motor unit.
FIELD: bridge construction, particularly floating bridges, for example, pontoon bridges.
SUBSTANCE: method involves unloading land-based and river-based pontoon sections on ice, expanding the pontoon sections in temporary bridge location area; sealing pontoons of each pontoon section by means of top and bottom jointing means; moving each pontoon section to temporary bridge construction site over ice; serially jointing pontoon sections with each other along temporary bridge length and breaking ice by blasting charges spaced from bridge axis. Longitudinal grooves are created in ice from each bridge side with the use of ice-cutters so that ice thickness in groove bottom area is not more than 10 cm. After that elongated charges including several detonating fuse strings are laid in the grooves. The grooves are filled with wet snow or water and elongated charges are blasted to break ice in each groove. After that ice under bridge sections is broken by vehicle movement over the bridge.
EFFECT: decreased time and increased safety of temporary bridge construction.
FIELD: construction industry; bridges.
SUBSTANCE: method of pontoon bridge equipping at high flow speed is performed using set of railway pontoon ribbon bridge and differs in the fat that bridge stiffness on water obstacle is provided by anchors which are installed on bridge top and bottom sides and are attached to bottom of outer pontoons with the help of ropes which pass through lugs fixed on rings welded to deck and bottom of outer pontoons.
EFFECT: increasing vertical component of hydrodynamic forces, reducing the different of member to top or bottom sides, and improving pontoon bridge reliability.
FIELD: construction industry.
SUBSTANCE: ice crossing construction method refers to ice-technology industry, and can be used when designing ice crossing meant for load transportation. Snow shall be removed from ice surface, and the latter shall be covered with air-tight film. Space between ice surface and film is ventilated with fan cold ambient air. Cold air flow intensifies heat exchange on ice surface and provides its fast cooling, and thickness increase.
EFFECT: fast putting into operation of ice crossing.
FIELD: construction, road construction.
SUBSTANCE: invention is related to the field of bridge engineering and is intended for erection of pontoon bridges over water obstacles on a tight schedule and with the least material and labour expenses. It is achieved by the fact that pontoon bridge comprises pontoons open at the bottom, on which bridge supports are mounted to carry spans and road way, and spacers that connect peripheral parts of pontoon to fixed anchors on soil, and every pontoon is arranged in the form of packet of vertically oriented adjacent tanks that are inverted upwards with their bottoms and are connected to system of air supply and its pressure control in every of them, at that spacers are located on the opposite sides of pontoon to form triangular figures with every of them, which are oriented in crossing planes, and have dampers and/or control mechanisms, preferably with remote control, their stretching in process of bridge erection and/or its operation. At that vertically oriented tanks form rows of cells in section with horizontal plane, which are evenly located on at least part of section area.
EFFECT: higher reliability of pontoon bridge operation at different dynamic effect at it, also from wave and wind loads due to provision of stability in pontoons that carry spans and provision of their controlled submersion at specified depth.
4 cl, 2 dwg
FIELD: transport, construction.
SUBSTANCE: method of producing ice ferry consists in cleaning ice surface of snow, placing a layer of heat-isolation material through the cut, along the ice ferry routed, and pressing aforesaid layer to the ice layer lower surface. A continuous layer of ice floats is placed between the ice surface lower surface and the said heat-isolation material.
EFFECT: higher load-carrying capacity of ice ferry.