SU1604969A1 - Method of errecting water conduit of large diameter from solid ferroconcrete - Google Patents

Abstract

The invention relates to hydraulic construction and can be used in the construction of large-diameter conduits from monolithic reinforced concrete. The aim of the invention is to simplify the technology and reduce labor and material costs. Concreting of the conduit pipe 23 is carried out in sections 1-4 of formwork supported on a submerged base using sliding supports 14. As the concrete hardens with form-shifter 6, formwork sections are rearranged, and the foundation tray 24 is concrete under the freed section of pipe.

Description

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The invention relates to hydraulic construction and is intended for the erection of large-diameter conduits from monolithic reinforced concrete.

The aim of the invention is to simplify the technology and reduce labor and material costs.

Fig. 1 schematically shows a device for erecting a conduit, side view; FIG. 2 is a section A-A in FIG. on fig.Z - section bb in fig. one.

The conduit erection device consists of separate inventory hinged and folding sections 1–4 of the external formwork, internal sliding formwork 5 and a transfer device 6 of the sections of external formwork installed along the inventory rail track 7.

Each section 1-4 of the external formwork along the perimeter consists of two side bendings 8, connected in the upper part by hinges 9, and in the lower part, the shields 8 have a stripping connector 10. When stripping and moving, the shuttering shields 8 can unfold on the connector 10 relative to the hinges 9. The connection of the shields 8 in the place of the connector 10 when assembling the formwork is carried out using a quick-disconnect screw connection 11. On the side surface of the shields 8 in the lower part are glasses 12, into which the telescopic rods 13 are inserted. by the shoes 14 held in the desired position, for example, by means of wedge locks 15. The assembled elements 12-15 are retractable (telescopic) supports, with the help of which the external sectional formwork 1-4 is exposed to the design position in space with a description on a subgrade 16.

The external formwork transfer unit 6 comprises a bulk portal frame mounted on the undercarriages 17 on rail tracks 7. To open the shields 8 of the external formwork sections, the transfer unit 6 is equipped with two cargo devices consisting of hydraulic cylinders 18, rollers 19, ropes 20 and hooks 21. lifting the sections of the external formwork when it is rearranged on the portal of the form-shifter 6 of the formwork, hydraulic cylinders 22 are installed.

The method for erecting a conduit is as follows.

On the waterway construction route, an external sectional formwork 1-4 and an internal sliding formwork 5 are installed on the previously prepared subgrade base.

External sectional formwork 1-4 of the poured is poured in space with the help of sliding (telescopic) supports by extending 12 rods 13 s from glasses

shoes 14, which are installed on a subgrade and fixed in the required design position by means of wedges 15. Between the external sectional formwork 1-4 and the internal sliding formwork 5 in the direction of arrow K, the concrete mix is laid and the conduit 23 is concreted. As it is concreted, after the concrete has set up the pipeline of the water line 23

5 strength it raspalublyvuyut. At the same time, sections 1 and 2 of the formwork are disconnected, the lock wedge 15 is knocked out, the rods 13 are pushed into the formwork glasses 12 with the simultaneous lifting of the support shoes 14 and with the help of wedge locks 15 the sliding supports are fixed in the raised position. Next, screw connections 11 are disconnected using the form-shifter 6 and the hydraulic cylinders mounted on it

5 18, the rollers 19, the ropes 20 and the hooks 21 relative to the hinges 9, by means of the connector 10, side shields 8 and the formwork section 1 are pushed apart using jacks 22 in a position sufficient to bring the disassembled section 1 of the formwork above sections 2-4 formwork With the help of the transponder 6 along rail tracks 7, section 1 of the formwork is transferred in the direction of the arrow KB to the new initial position for concrete section 4. Section freed from section 1 of the formwork (shown in fig. 1 in dotted line) the conduit 23 remains in this section on the one hand, on the previously banned tray 24, and on the other side - on the section 2 installed on the sliding supports. Further, concreting of the front foundation tray 24 is performed at this site under the finished pipe of the conduit 23.

5 As the water main pipe is concreted, after the concrete has set the stripping strength S of section 2, it will be disassembled in the same order; similar to decomposition of section 1. After section 2 is decoupled, it is transferred over sections 3.4 and 1 to a new initial position ahead of section 1, and the cycle repeats.

Claims (1)

The invention of the method of construction of large water conduits 5 diameters of monolithic reinforced concrete, including concreting of water and horizontal sections and concreting of foundation trays, characterized in that, in order to simplify the technology and reduce labor and material costs, sections of the conduit pipe are concreted into the formwork, supported by sliding ground supports. the base as well the fundamental tray was erected after the removal of the finished pipe section by placing the concrete directly under it. 7 ////) / Х // 7/7 / / //// // ///// /// // 7 / ///// U (/// UU7 / FIG. 2 Fi.Z 23