The method of supplying the concrete mixture into the concrete blocks solid monolithic construction
The invention relates to the field of hydraulic engineering construction and can be used when pouring massive concrete structures. The technical result is to increase the intensity and efficiency of concrete work when pouring massive concrete structures. The method of supplying the concrete mixture into the concrete blocks solid monolithic construction is carried out by feeding the concrete mix through the transfer bunker with betonovoznoy pipe, and the subsequent delivery of concrete mix vnutriplitnyi the concrete trucks. Next, the concrete mixture is fed to the additional bottom reloading the hopper, provided with a shutter and maintained in a partially filled condition, to prevent stratification of flowing concrete mixture. Discharging bottom loading hopper produce in vnutriplitnyi concrete trucks dosed portions. 1 C.p. f-crystals, 1 Il. The invention relates to the field of hydraulic engineering construction and can be used when pouring massive concrete structures.Known methods of concrete mix delivery in blocks of concrete hydraulic structures on the in hydraulic engineering. -M.-L.: Energy, 1967, S. 121 - 129).The disadvantages of these methods are limited coverage, low flow rate of the concrete mix into blocks and significant segregation of the coarse aggregate, which is separated from the concrete. Therefore, these methods are not used as main and as an extra for transportation and supply of concrete mix in blocks.Closest to the proposed invention is a method of supplying concrete mixture into the concrete blocks used in the construction of concrete dams-layer blocks - when using "Toktogul" method of concreting. Accordingly, portions of the concrete mix, imported to the structure under construction from the concrete plant by dump trucks, entered into the transfer hopper shutter, which was then unloaded in vnutriplitnyi concrete trucks delivering it directly to the place of laying in the block (L. A. Tolkachev, C. B. Sudakov. Toktogul method of concreting massive structures. - M.: Energy, 1973, S. 11, 12).The disadvantage of the prototype is the need to limit the drop height of the concrete mix 4 - 6 m, due to its bundle, the degree of which is greater, the greater the grain size of the coarse aggregate in the mixture, and t is the rate of concrete work.The proposed method does not have these disadvantages and allows you to move the concrete mix according to the height at distances up to several tens of meters almost without stratification.The invention solves the problem of increasing the intensity and effectiveness of concrete work when pouring massive concrete structures layer-by-layer method - a single layer of blocks.To achieve the mentioned technical result in the proposed method, the supply of concrete mixture into the concrete blocks is carried out through the transfer bunker with betonovoznoy pipe, from which the concrete mixture is fed to the additional bottom reloading the hopper, and thence in vnutriplitnyi the concrete with subsequent delivery to the places of its installation. Bottom reloading the hopper is equipped with a shutter and is constantly maintained in a partially filled condition, to prevent stratification of flowing concrete mixture. Unloading of the hopper produce in vnutriplitnyi concrete trucks dosed portions.In addition, the claimed technical solution has optional features that characterize its special cases, namely: before applying the concrete mix, with a maximum grain size of the grains of aggregates than 40 mm, additional the supply hopper bottom sequentially move to the desired height up shortening respectively betonovoznoy pipe.The hallmark of the proposed method is that in the process of concreting, until its end, when loading each vnutribruchnogo of additional concrete bottom reloading the hopper is unloaded, but not all, metered portions, so there remains a volume of concrete mixture, is sufficient for this remaining concrete mix was toplevels coming on batanovtsi pipe to another portion of the concrete mixture and prevents its separation.The proposed method is illustrated by a drawing, which shows a diagram of a concrete mix delivery.The diagram shows the flow of the concrete mix from the dump track 1, coming into the transfer hopper 2, batanovtsi pipe 3, an additional bottom reloading the hopper 4 located on the support structure 5. Further unloading of the concrete mixture produced during vnutriplitnyi the concrete 6.The method is as follows.The supply of concrete mixture into the concrete blocks solid monolithic structure is made through the system of two bins: loading hopper 1 and additional bottom loading hopper 4, connected b the mix is unloaded dosed portions in vnutriplitnyi the concrete 6, deliver it to the location of installation.Reloading the hopper 2 has a volume of not less than the volume of the portions of the concrete mix delivered to him from the concrete plant. Additional bottom reloading the hopper 4 has a volume of not less than two of the supplied portions of the concrete mix. Unloading from it is controlled by the operator, managing shutter.Betonovoda pipe 3, through which the concrete of the loading hopper 2 is supplied in additional bottom reloading the hopper 4, must have a diameter not less than 4 times the size limit the size of grains of aggregates in the concrete mix should be directed to the center of the hopper 4.As building massive concrete structures or facilities additional bottom reloading the hopper 4 is sequentially moved to the desired height up, shortening, respectively betonovoznoy pipe 3.The proposed method of supplying concrete mixture into the concrete blocks solid monolithic construction is simple, easily implemented, allows the casting with high intensity and can be widely used in the construction of concrete dams, especially in mountainous conditions, and other concrete structures - retaining walls, massive FA1. The method of supplying the concrete mixture into the concrete blocks massive monolithic structures including concrete mix feeding through to a loading hopper having betonovoznoy pipe, to discharge on vnutriplitnyi concrete trucks with subsequent delivery, characterized in that the concrete mix batanovtsi pipe served in the supplied bolt additional lower transfer bunker, constantly supported in partially filled with concrete condition to prevent delamination of the concrete mixture with vtaplivaniem it in the concrete mix, partially filling the lower transfer bunker and unloading produce dosed portions, moreover, before applying the concrete mix with a maximum grain size of the grains of the aggregate for more than 40 mm lower transfer bunker load portion of fine-grained concrete mix.2. The method of supplying the concrete mixture into the concrete blocks massive monolithic structures under item 1, characterized in that as the building of constructions of the lower hopper sequentially move to the correct height up, thus shortening betonovoznoy pipe.
SUBSTANCE: invention is related to the sphere of construction. Device for reception and application of concrete mixture on surface of bases contains mobile facility with platform, arm with receiving section that is connected with concrete-delivery pipeline that passes through hollow support installed on platform, end section of concrete-delivery pipeline and turning mechanism. Besides, device is equipped with additional arm, which is installed under platform coaxially with arm of receiving section and connected with end section of concrete-delivery pipeline with the possibility of provision of its alternating turn to both sides from arm axis by at least 120 degrees by means of mechanism, which is made in the form of two hydraulic cylinders and star. Arm with receiving section of concrete-delivery pipeline is equipped with mechanism of circular turn that is arranged in the form of geared couple with drive from hydraulic motor that is fixed in platform. At that arm of receiving section of concrete-delivery pipeline is made as three-hinged, and arm of end section - as two-hinged.
EFFECT: increase of concrete application surface area and provision of safety of works performance.
2 cl, 4 dwg
SUBSTANCE: device consists of a control unit and an angle measurement unit with the former calculating the lifting arm position coordinates based on the angle measurement data to have been collected and exercising control over varied drive mechanisms accordingly. The device is additionally equipped with a remote control unit that broadcasts wireless remote control commands to support control over translocations. The directional control command consists of X-axis component, Y-axis component and Z-axis component referenced to a rectangular coordinate system with the rectangular coordinate system plotted within a space where its X, Y and Z axes correspond to each of the axial components of the directional control command of the remote control unit. When the remote control unit conveys a directional control command the control unit defines the lifting arm end in-plane relocation direction relying on the X-axis component, the Y-axis component and the Z-axis component of the directional control command to have been received and decomposes the total transposition into a sum of motions of specific arm sections and the rotating platform so that the lifting arm end become relocated exactly in the direction assigned by the control command.
EFFECT: rectilinear control over the lifting arm end relocation trajectory.
23 cl, 12 dwg
SUBSTANCE: invention relates to the field of transportation of thick masses by means of pipelines. Injection pipeline for transportation of thick masses, in particular liquid concrete for construction of a structure, is equipped with several pipes detachably split with each other in points of butt joints, serially arranged in longitudinal direction of pipeline. At the same time at least one of pipes is fixed in immovable support. Besides at least one subsequent pipe is pulled with the possibility of displacement along axis via guide element rigidly mounted on the structure. At the same time guide element forms floating support for basing of the according pipe. Device for fixation of injection pipeline for thick masses on the structure comprises at least one guide element fixed on the panel of floor slab or on the structure wall for alignment of one of the pipes, which is installed movably in direction of axis in guide element. At the same time guide element forms floating support for basing of the according pipe.
EFFECT: reduced tension in injection pipeline and improved possibility for replacement of separate pipes.
39 cl, 13 dwg
SUBSTANCE: invention relates to construction machinery. Proposed device comprises control board arranged on the machine or made self-contained, transducers of spatial position of boom and/or its sections, and/or machine rotary platform. It comprises also electronic control unit to receive and process signals from transducers and control board, set up and memorise system of coordinates and generate signals for operator and/or those to control machine drives, and display. Display serves to show data coming from electronic unit and/or control board. Electronic control unit decomposes instructions from control board into control signals for boom and/or its sections, and/or machine rotary platform so that control element displacement along one main direction corresponds to boom travel along one axis of set coordinate system. In compliance with 1st version, display, electronic control unit and/or control board can display coordinate system on display furnished with sensor screen, while electronic control unit and display can set up coordinate system using signals generated by sensor screen by operator actions. In compliance with 2nd version, proposed device additionally comprises gripper vertical position transducer, while electronic control unit receives and processes signals from said transducer, and generates gripper actuator control signals.
EFFECT: higher efficiency and accuracy of control.
24 cl, 1 dwg
SUBSTANCE: device is arranged so that a telescopic delivery device is made as capable of aiming at the required elevation of an erected structure by means of a hydraulic cylinder, delivery of a supply hose connected with the last link of the telescopic delivering device, to a higher elevation, by creation of an excessive volume of consistent material in it under action of an auger loader and a closed roller valve on the supply hose, delivery of a consistent material for needs of this elevation; delivery of a supply hose to a lower elevation, by squeezing of an excessive volume of consistent material from the telescopic delivering device with the closed roller valve of the supply hose under action of a hoist and a reversed auger loader; delivery of a consistent material for needs of the above elevation with the roller valve open on the supply hose and the auger loader connected for normal operation.
EFFECT: higher efficiency during its operation.
1 cl, 1 dwg
SUBSTANCE: method to pour a concrete mix under process equipment at the final stage of its assembly includes installation of a curb along the foundation contour and an accumulating tray with submersible vibrators included in it. Vibration treatment of the concrete mixture in the process gap between the equipment stand and the foundation is carried out on the entire way of its movement from the accumulating tray to the vibration shell by means of rods placed along the entire area of pouring, ends of which are fixed in a rigid vibration shell, located at the equipment side opposite to the accumulating tray.
EFFECT: higher efficiency of works due to less time spent to fill a process gap with a concrete mix, provision of even distribution of density of a concrete mixture along entire area, higher strength of poured concrete, no limitations in dimensions and configuration of equipment in plan.
2 cl, 1 dwg
SUBSTANCE: proposed machine comprises chassis 10, two front and two rear supports 20, 22. Said supports may turn from transport position to bearing position with changed datum angle (α) between support and chassis and/or they may be drawn apart to vary their length between mount end and free end. For automatic determination of bearing leg position (Xc/Yc) relative to chassis 10 three transceiving units (S1/E1, S2/E2, S3/E3) related to every support for transmission and reception of signals of travel time or distance signals. Besides, there is microprocessor-controlled processing unit responding to signals of said units and incorporating program defining support leg position in fixed coordinate system.
EFFECT: higher operating performances.
8 cl, 4 dwg
SUBSTANCE: placer mast of a truck-mounted concrete pump is designed to supply concrete to the place of its laying when performing construction works carried out preferably at height. The mast comprises folding sections that are hingedly coupled and joined to each other by means of hydraulic cylinders. The root section of the mast is hingedly installed on the stand of the rotary device. The last section of the placer mast and the end of the concrete line are arranged as telescopic. The telescopic section of the mast is mounted on the main mast as capable of rotation by an angle of 360° and with the possibility of lifting and lowering in the vertical plane by means of a hydraulic cylinder. The extreme link of the telescopic section of the concrete line of a smaller diameter is connected with the main concrete line as capable of rotation. Extreme links of telescopic sections of the mast and the concrete line are fixed to each other, besides, the section of the smaller diameter is fixed to the section of the larger diameter. Extension of the links of the telescopic section of the placer with extended links of the concrete line is carried out with the help of the hydraulic cylinder installed in the cavity of the specified mast section.
EFFECT: expanded working zone and control of concrete supply to a place of laying without displacement of a truck-mounted concrete pump.
3 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: invention relates to the mobile work device, in particular to the truck-mounted concrete pump. The work device includes the chassis, two front and two rear support cantilevers, pulled out from the transportation position to at least one work position relatively the chassis and each supported by the support leg on soil during the chassis lifting, and drive assembly to control the work devices and/or support cantilevers. At least one the support cantilevers having beam or hollow section has the cross-section aperture in form of the casing for the liquid tank or for the secondary device of the drive assembly.
EFFECT: improved design.
16 cl, 3 dwg
SUBSTANCE: method of engine speed control is designed to control output engine speed of a boom-type engineering machine during a boom action includes: detecting a load pressure of a hydraulic system and a moving speed of a boom; determining a target speed of the engine according to the load pressure and the moving speed of the boom, by a central control unit; sending, by the central control unit, the target speed of the engine to an engine control unit, and performing, by the engine control unit, a speed closed-loop adjustment according to a current speed value fed back by the engine, so that a current speed of the engine is consistent with the target speed of the engine.
EFFECT: additional aspects of the invention are a device for engine speed control and boom-type engineering machine containing device for engine speed control.
10 cl, 3 dwg