RU2026456C1 - Device for coating surfaces of canals with antiseepage straps - Google Patents

Abstract

FIELD: hydraulic engineering. SUBSTANCE: device is made in form of frame with adjustable trapezoidal cross section; cloth is unwound from lateral drums and adhesive is applied by means of adhesive applying mechanism, then cloth deflecting in its plane is pressed to lateral sides of canal by bearing-travelling mechanism. Adhesive is similarly applied on cloth delivered from middle drum in rear portion of device, after which cloth is laid on this surface of canal by means of hold-down mechanism. Surfaces of canal are cleaned preliminarily by means of cleaning cylindrical brushes operated by drive mounted in front portion of device. Adhesive is kept in reservoirs installed in front and rear portion of device; in its front portion, device is provided with jet former fitted with funnel facing rear portion of the device; in its middle portion, device is provided with vertical transverse plate secured for vertical displacement and fixation, vertical sheathing boards secured to frame on sides in parallel with longitudinal axis of device; secured to upper edges of these boards by means of hinges are concrete distribution boards interconnected by means of hinges and equipped with mechanism for changing angular position of concrete distribution boards relative to one another. EFFECT: enhanced efficiency and productivity in canals filled with water. 3 cl, 14 dwg

Description

 The invention relates to hydraulic engineering and can be used for mechanization of repair work and reconstruction of water-filled canals with concrete lining of the bed.

 Known methods for repairing individual defective zones, foci of filtration, underwater surfaces of hydraulic structures by applying a polymer coating, fixing plasters, screens. These methods require the use of manual labor in underwater conditions.

 A device for laying film in the bed of the channel, including a telescopic frame with running gears, on which there are cassettes with a film, a mechanism for securing the film on the berm of the channel, a bitumen tank with a heating system, a pump and pipelines, a sand hopper with throwers. The specified device provides maintenance of channels of various sizes, the implementation of a reliable anti-filter screen around the perimeter of the channel, but its use is possible only for the construction of new channels, carried out in conditions of an unfilled channel.

 It is also known a device designed for laying concrete lining of channels, providing an increase in the quality of the lining by laying a film screen between the layers of compacted concrete. The device is also intended for new construction, carried out in an unfilled water channel.

 The purpose of the invention is to increase the efficiency and productivity of the application of the anti-filter sheet around the perimeter of the concrete lined and filled with water channel.

 The goal is achieved by simultaneously applying an effective antifiltration coating over the entire perimeter of the concrete lining of the water-filled channel, without the use of manual labor in underwater conditions. Moreover, at the same time as carrying out repair work, the device allows you to wash out the channel from loose bottom sediments and to mechanize the formwork work on the superstructure of the concrete cladding. The device is made in the form of rolling formwork, resting on the side surfaces of the channel, with reels of rolled material mounted on the frame, containers for adhesive with a mechanism for applying it to the cloth, cleaning cylindrical brushes with their own drive and jet former, a slide device and a clamping mechanism. Moreover, the carrier frame of the device is made with the possibility of adjusting the dimensions and the trapezoidal cross-section, so that its side elements, mounted obliquely, form supporting and running devices, based on the side surfaces of the channel. The sheets of coiled material, twisting from the drums, are coated in the water position with adhesive and pressed by the supporting-running devices to the side surfaces of the channel and the clamping mechanism to the bottom surface.

 Thus, the entire perimeter of the channel is covered with a sheet with an adhesive applied to it, which fills the cracks in the concrete lining of the channel and, being cured, forms, together with the sheet of rolled material, a glued antifiltration coating. When using a cloth made of a material with a porous structure (geotextile, fiberglass), a reinforced polymer antifiltration coating is formed on the surface of the concrete lining. When using a film material, a two-layer coating is formed in the form of a glued screen.

 Figure 1 shows the device, a top view along arrow A in figure 2; in FIG. 2 is a longitudinal section of the device; figure 3 - channel and cross section of the device BB in figure 2; figure 4 is a section bb In figure 2 is a view of the cleaning cylindrical brush with a drive and a jet; figure 5, 6, 7 presents, respectively, the upper and lower installation detail of the supporting-running device; on Fig and 9 - installation details of the cleaning cylindrical brushes and jet; figure 10 is a transverse section of the device, a view of the side drums of the web material and forming devices; in FIG. 11 is a top view of the installation detail of the side drums of the web material, the container for adhesive with a mechanism for applying it to the panel and forming devices; in Fig.12 is a transverse section of the device, a view of the clamping mechanism, Fig.13 and 14 are details of the clamping mechanism.

 The device comprises a spatial frame formed by rigid longitudinal crossbars 10, transverse crossbars, of variable length: upper 12, lower 13; and supporting devices mounted obliquely on the sides of the frame so that the frame is made with an adjustable trapezoidal cross-section. Supporting devices include mounted on bearings 15 cylindrical rollers with an elastic coating 1, fixed to the rigid nodes of the frame by means of a cylindrical hinge 16 at the upper point and articulated spring suspension 17 at the lower point. This design of the support-and-running devices provides an automatic change in the angle of inclination of the cylindrical rollers 1, corresponding to insignificant changes in the dimensions of the channel over an insignificant length of the technological gripper equal to the length of the device. A coarse adjustment of the dimensions of the transverse frame of the device is carried out by changing the length of the crossbars of the transverse frame, the upper crossbar of the transverse frame 12 is made telescopic, and the lower crossbar 13 is integral with a gear connection and a lever mechanism for remote adjustment 14, which makes it possible to service the device from the surface position. The device is equipped with shuttering boards 2 attached on the sides to the frame parallel to its longitudinal axis and with a concrete distributor 3, made in the form of inclined concrete distribution boards pivotally connected to each other, articulated with free edges to the upper edges of the shuttering boards. Moreover, the concrete mixture distributor 3 is equipped with a mechanism 18 for changing the angular position of the concrete distribution boards with each other, and the shuttering boards are mounted on the adjusting screws 11, which are equipped with vertical frame elements. In the middle part of the device, a vertical transverse plate 8 is fixed to the rigid elements of the frame with the possibility of vertical movement and fixation, which is used to reduce the tractive effort to move the device. In the front part of the device are sequentially placed: cleaning cylindrical brushes with drives 4, a jet former 19, containers with adhesive and mechanisms for applying adhesive to the cloth 9, side drums of roll material 5, forming devices 21.

 A cleaning mechanism designed to clean the surface of the channel lining before applying the antifiltration coating is installed in the head of the device and consists of three cylindrical brushes (two side and one bottom) equipped with drives and a jet former 19 with a funnel facing the rear of the frame. Moreover, to ensure the adjustment of the spatial position of the cylindrical cleaning brushes 4 corresponding to the channel dimensions, the axis of the brushes are mounted in bearing bearings oriented by the adjusting screws 20. The cleaning mechanism parts are fixed to rigid frame elements that cantilever protrude at the head of the device. On the cantilever frame elements symmetrically to the longitudinal axis of the device are fixed containers for adhesive with mechanisms for applying it to the panel 9, side drums of the rolled material 5 and forming devices 21. Moreover, by using an additional transverse telescopic crossbar 22, it is possible to install drums of the required length. Forming device 21, providing initial refraction of the plane of the sheet, curled from a horizontally mounted roll, is made in the form of a curved tubular structure with the ability to adjust the position in the vertical plane.

 The mechanism for applying the adhesive to the panel impregnates the roll material with a porous structure, or applies glue to the lower surface of the panel facing the surface of the channel lining. In the rear part of the device, on the cantilever elements of the frame, a middle drum 6 of roll material, a container for adhesive with a mechanism for applying adhesive 9 to the panel and a clamping mechanism 7 made in the form of a U-shaped structure with the possibility of movement in the vertical plane to adjust the position of the lower element - a cylindrical bottom roller coated with an elastic material. The width of the sheet of web material on the middle drum 8 and the length of the bottom roll ensure that the sheet covers the bottom surface of the channel lining with an inlet on the slopes.

 The device operates as follows.

 The device is installed on the channel so that its technological movement coincides with the direction of flow in the channel. In this case, the device is supported by running gears on the side surfaces of the cladding. Before starting work on the frame, side 5 and middle 6 drums with roll material are installed, containers 9 are filled with adhesive and start the engines (drives) of the cleaning mechanism. When the device is moving, the rotating cleaning brushes 4 clean the surfaces of the concrete channel lining before coating. The sheets of coiled material are twisted from the side drums 5, coated with adhesive mechanisms (impregnated) with the adhesive, refracted by the forming devices 21 and fall under the cylindrical rollers 1 of the supporting-running devices, which are pressed against the side surfaces of the channel lining. With a lag in the front of the work, equal to the length of the device, the sheet of rolled material is coated, coated (impregnated) with adhesive on the bottom surface of the lining with an overlap on the slopes. In this case, the panel is rolled by the roller of the clamping mechanism 7.

 The amount of force exerted by the roller on the panel is regulated by the screws of the clamping mechanism. When performing work on the channel with the adjustable side surfaces of the cladding, the formwork panels 2 of the device are installed with their ends on the cladding surface of the slopes in their upper part, forming the inner surfaces of the formwork. By means of adjusting screws 11 and a mechanism for changing the angular position of the concrete distribution panels, the position of the formwork panels 2 is changed among themselves, depending on the need. When the concrete mixture is fed to the upper point of the concrete distributor, the concrete mixture is simultaneously supplied to both built-in channel walls. The impact of the stream of jets created by the jet former 19, contributes to the removal of sediment from the bottom of the channel in front of the device, and the effect of the fluid flow on the vertical plate 8 reduces the amount of traction required to move the device.

Claims (3)

 1. A DEVICE FOR COVERING THE SURFACE OF CHANNELS WITH AN IMFILTRATION FILTER, including a width-adjustable frame with supporting and running devices, on which drums with panels are mounted, a clamping mechanism, a container for adhesive and mechanisms for applying adhesive to the fabric, characterized in that, for the purpose increase efficiency in work in the conditions of repair and reconstruction of concrete lined and filled with water channels and increase productivity by ensuring simultaneous coverage of The channel’s diameter, the frame is made with a trapezoidal cross-section and equipped with cleaning cylindrical brushes installed in front of it with a drive and a jet former with a funnel facing the rear of the frame, with the middle drum and pressure mechanism located at the rear of the frame, side drums at the front frames behind brushes, and supporting-running devices are made in the form of cylindrical rollers with an elastic coating mounted obliquely on the sides of the frame.  2. The device according to claim 1, characterized in that, in order to reduce traction, it is equipped with a vertical transverse plate mounted in the middle of the frame with the possibility of vertical movement and fixation.  3. The device according to claims 1 and 2, characterized in that it is equipped with vertical shuttering boards attached on the sides to the frame parallel to its axis, and a concrete spreader made in the form of concrete distribution boards articulated between themselves, attached to the upper hinged free edges edges of shuttering boards, and a mechanism for changing the angular position of concrete distribution boards with each other.

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