SU1307035A1 - Method and apparatus for concrete-lining of a trench - Google Patents

Abstract

The invention relates to the field of construction, in particular to a trenching method and device for carrying it out. The purpose of the invention is to increase productivity. The method of concreting a trench involves transporting the Oton mixture and laying it by means of a vertically stirred, ayush.o concrete pipe while simultaneously displacing the filling of the yush, its trench with a thixotropic solution. In this case, transportation of the concrete mix is carried out with vibration by generating oscillations in the direction transverse relative to the axis of the trench, and laying is carried out with vibration by generating oscillations in the longitudinal direction. The device comprises a concrete-pipe 2 provided with a receiving funnel 1 consisting of two parts. The parts of the concrete pipe are interconnected by a flexible link 3. A circular vibrator 4 is attached to the upper part of the concrete pipe by means of a hinge 6 and a vibrator 4 is provided with a rigid rod 7. A clamp 8 connected to the rod 7 is fixed to the lower part of the concrete pipe. 1 il. i (L o o o o co

Description

The invention relates to the construction and mainly concerns the issue of laying inactive concrete mixes under a layer of water or mud at the construction of underground structures, possible in a trap wall using a wall in the ground.

The purpose of the invention is to increase productivity.

The drawing shows a diagram of a device that concretes trenches.

The device for concreting the tranpeil includes a concrete pipe 2 provided with a receiving funnel 1, consisting of two parts interconnected by a flexible connection 3 made, for example, of a rubber sleeve or rubber flanges, a vibrator 4 of circular oscillations. In this case, the vibrations KpyroBSjix vibrator is attached to the upper part of the concrete pipe 2 by means of Kronschtein 5 and Harpier 6, whose axis is oriented perpendicular to the axis of the pipe, and is equipped with a rigid dpga 7. Moreover, on the lower part of the concrete pipe 2 there is a clamp 8 connected to the flange 7 movably by means of the joint 9 and the sleeve 10.

The trenching process is carried out as follows.

The device is lowered to the bottom of the concreted pit, which is filled, for example, with water or mud. At the mouth of the non-topolitic pipe 2, the lost sliding stopper is illuminated and the funnel is loaded with concrete. Under the action of the pressure of concrete, the lost plug moves into the air, displacing the air and liquid that passes through the concrete pipe. The output of the sliding plug of the concrete tube is attached to the bottom of the pipe. When the vibrator 4 is turned on, the process of transporting the concrete mix is intensified. The betopolite pipe is raised above the bottom of the trench. At the same time, the concrete mix begins to fill the concreted space. The circular oscillations generated by the vibrator 4 are divided into two mutually perpendicular directional axes: along and across the trench axis. The cross section of the oscillation through the arm is transmitted to the upper part of the pipe and intensifies the process of transporting the sedentary concrete mix.

It is longitudinal, along the tragpei axis, constituting oscillations through a rigid rod 7

Compiled by O. Voronova

Editor K. Voloshchuk 1 e.chred I. VeresKorrektor I. Muska

Order 1397/28 Circulation 607 Subscription

VNIIPI State Committee SSH R but inventions n discoveries

1 13035, Moscow, F-Zo, Raun1ska nab., 5/5 Production and noligraphic nredi tne, Uzhgorod, ul. Project, 4

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and the collar 8 is transferred to the lower part of the concrete-pipe, ensuring the laying and compaction of an inactive concrete mix in a trench. At the same time, the bond 3 is not flexible.

It prevents movement of the upper and lower parts of the pipe in different planes.

Since the lower part of the concrete pipe is subject to angular oscillations of a relatively flexible connection 3, the linear displacements of its end along the axis of the trench are much larger than the magnitude of the amplitude of the vibrator vibrations. The ratio between the amplitudes. Depends on the ratio of the shoulders between the center of the hinge, the center of the disturbance and the distance to the end of the lower part of the pipe. An increase in the amplitude of the vibration oscillations contributes to an increase in the zone of distribution of the concrete mix.

When the concrete mix reaches 5-10. M above the lower end of the concrete pipe, the device is lifted so that its lower end remains recessed into the laid mix by 0.5-1.0 m, and after that, the concreting continues with the proposed method until it is completely filled. trances

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Claims (2)

1. A method for the casting of a trench, including the transportation of the mix with a betoppa and its laying with vibrating by means of a vertically variable concrete tube with a single turn of OM, displacing the filling solution of the tpxotropy solution, which is designed to increase the productivity of the concrete mix with vibrating, whereby the concrete is transported to the concrete, the oscillation is carried out in the transverse direction relative to the smallpox, and the installation is carried out in the longitudinal direction. 0 2. A device for transferring concrete, including a concrete tube supplied with a multi funnel, consisting of two parts interconnected by a flexible connection, and a vibrator of circular oscillations, characterized in that, in order to increase productivity, the vibrator is attached to the upper a part of the concrete pipe with a hinge means, the axis of which is oriented perpendicular to the pipe axis, and provided with a rigid spindle, and a collar associated with the sligopo iggga is fixed on the lower part of the concrete pipe. 0 five