CS209180B1 - Equipment for laying concrete pipes under water - Google Patents

Abstract

The concrete pipe laying device consists of two parts: 1. The extended suspension rods welded to flat prefabricated pads are placed on the bottom of the trench so that the suspension rods protrude above the water. 2. The pipe is lifted from the dump using a special beam in the shape of a horizontal U, placed on the bent beam supports and, after being guided by a protruding mandrel, inserted underwater into the neck of the previously laid pipe, while being pressed with ropes, even with neck sealant.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a device for laying concrete pipes in a construction groove, which is also flooded with water, even though it is a non-sparking. The device allows the use of mechanization with minimal use; manual work, exclusively over water.

Prefabricated concrete pipes, which are intended to create a pipeline as a rule to be laid in a dewatered trench or at a lower surface of groundwater. When the subsoil has been reliably detected and the water level is not economical, the pipes are also stored in water.

In this way, the pipes can only be placed in the depth of the water in which the workers are still able to move, or until the upper part of the pipes is still out of the water. There is no known technology for storing tubes in deeper water. |

The aforementioned drawbacks are eliminated by the underwater concrete pipe laying device according to the invention, the principle of which is in the suspension rods of the pipe liners which protrude above the water and in a separate suspension beam for the transfer and laying of concrete pipes. The inverted V-shaped suspension rods are welded to the standard catch tabs of the prefabricated shims. These are then used to transfer these flat prefabricated pads under water so that their tips protrude above the water. The length of the hinges is therefore determined according to the expected water level during installation.

The special tube laying beam under water according to the invention is broken in the form of a horizontal U, thus allowing the tube to be attached and transferred in the center of gravity. However, a particular feature of this beam is that its support part still protrudes out of the transfer tube. Furthermore, there are two special rounded supports on the supporting part, on which the oven is carried. In addition, there is a further bent mandrel on the protruding portion of the beam, which extends into the opening of the previously installed pipe and which supports the support J against the inner top of the upper portion of the pipe when the pipe is underwater. By lifting the suspension beam i, the oven is then pushed into the correct position to the previously fitted pipe. !

When carrying the pipe and, in particular, installing the pipe with a separate suspension beam, the correct position of the beam with respect to the prescribed laying is guided by ropes controlled from the edge of the pipe or pit, which also pushes the pipe into the neck of the previously stored pipe.

When pipe seals are needed, the pipe sockets must still be sealed with a sealant, the quality of which must be suitable for underwater installation.

Fitting the pipes without the frills, we still need to attach the additional frets to the pipes in the landfill.

The dimensions of the retaining rods of the prefabricated washers and the special oven carrier are determined by the conditions for transferring prefabricates. j

Two-piece equipment for laying concrete pipes enables the installation of pipelines in the floor | the grooves that are located above the upper orbital pipes, or in the grooves that are not accessible to other causes. A particular advantage is that, when using the apparatus according to the invention, a reduction in the groundwater level is not required and the pipe can also be sealed if needed underwater.

In the accompanying drawing, a two-part device according to the invention is shown in the cross-section in FIG. 1 and in the axonometric view in FIG.

In the depicted embodiment, the rods are | 1, supporting prefabricated washers and a special beam 2 for transferring concrete pipes with rounded pipe supports 3 and bent mandrel 4 suspended from the hinge 5 and directed by the ropes 6. The suspension rods 1 are welded to the catching eyes; prefabricated fridges and are displayed in a deposition on a leveled trench foundation. An oscillating retaining beam 2 in the form of a horizontal letter U from the steel beams, by means of a hinge 5, fixes the oven in the landfill, thereby sits on the rounds of support 3, from which it slips when placed in an oblique position when the bent mandrel 4 on the extended part of the beam rests o the inside j top of the top of the previously stored oven. The ropes 6 are then pushed into the neck of a previously installed pipe.

Prefabricated bed suspension bars can also be used to store other prefabricated underwater elements. The suspension beam is also advantageous for storing other hollow prefabricates or other materials.

If it is desired to deposit concrete or other tubes in a precision leveling, rectification stands are first placed on the prefabricated washers by positioning the tubes; whose operation must be adapted to the operator above water.

Claims (2)

SUBSTITUTE A device for storing concrete pipes under water, characterized in that it consists of suspension rods (1) carrying! surface washers of pipes and protruding from the water, and of an oscillating suspension beam (2) for laying and laying the horizontal U-shaped pipes provided with rounded pipe supports (3) and a bent mandrel (4) on its protruding portion facing into the former stored oven. 2 drawings Fig- 2-