SU168197A1 - - Google Patents

Description

A device for trenchless piping in soils is provided. The device operates on the principle of vibro-impact of the pipe on the ground. The invention makes it possible to increase labor productivity.

Structurally, the device is made as follows.

A vibrating hammer is mounted on the frame mounted for movement along the guides; It also has an anvil and a removable adapter with a crush attached to it in the ground and at the same time a working member of the pipe. Inside the pipe, wetted with water, ends with a tip made in the form of a lead pipe concentrically attached to it with a diameter less than the diameter of the crushed pipe.

In order to remove the pipe from the well, the vibrohammer is designed to attach its striker to both sides in the direction of the axis of the vibrohammer, and the anvil can be rearranged on the frame according to the arrangement of the vibrohammer striker.

FIG. 1 schematically shows a device for the laying of pipe without a pipe; in fig. 2 is the same in the position where the device assemblies are relocated to remove the pipe.

The device consists of a four-shaft eccentric vibratory hammer /, exciting a horizontally directed disturbing force. The springs 3 are located between the back side of the vibratory hammer 1 and the frame 2, pressing the hammer 4 of the vibrating hammer / to the anvil 5. Directional impacts of the vibrating hammer / through the anvil 5 are transmitted to the frame 2 of the installation, with which the tube 6 is rigidly connected. diameter and for receiving the self-transporting soil on it interchangeable adapters 7 are used. Pressing the striker 4 of the vibro-hammer 1 on the anvil 5 is adjusted by three screws 8, thereby setting the vibro-hammer / for the required mode of operation.

The entire device moves along the guides 9, which serve to set the direction of the pipe being fed into the ground.

The vibratory hammer 1 is driven from the automobile engine 10 (ZIL-121) placed above the vibrating hammer on the frame 11 of the portal type. The drive frame rests on the common with the installation of the guides 9 and is connected to the pipe 6 tons 12 (through the soft springs 3.)

the drive frames, while the frame with the drive motor 10 will be vibration-proof.

The torque from the engine to the drive shaft of the vibration hammer 1 can be transmitted using a four-way chain transmission 13. Next, the torque transfers from the chain shaft to the vibrator. At the same time, the shaft practically does not transmit vibrations through the car gimbal to the car frame.

Since the ZIL-121 engine is equipped with a clutch and gearbox, it is possible to smoothly start the vibratory hammer / to the required speed, which is due to the possibility of successive passing through five stages of the gearbox.

At each gear, the engine can develop full power.

To remove the pipe from the ground with vibrating hammer 1, the following permutation of knots is made: the springs 3 (direct impact) are removed from the support plate and the screws 8; the anvil 5 is replaced in their place, and the hammer 4 is rearranged on the back side of the vibratory hammer /. Tam 12 and the springs 3 vibratory hammer 1 is pressed against the anvil 5. Thus, during operation, the vibratory hammer strikes in the direction of extraction pipe.

The joining of the crushed pipes is performed by the butt-welding method: brackets 14 (in the form of the Latin letter I) are welded to the free end, with which the lead pipe 15 is bolted to the interchangeable adapter 7, then the braces are removed, the pipe 6 is collapsed and the new leg is pushed up the free end is welded again with staples 14.

In case of penetration with the open end of the pipe, the soil is self-transported through the pipe in the opposite direction to penetration. To improve the self-transport of soil (in hard-to-transport soils) it is wetted at the head end of the pipe with water.

In order to build pipes with a diameter of 0.8–0.9 m (up to 1 m, a preliminary borehole is provided, the diameter of which should be 0.3–0.6 m. Next, the leading pipe 6 is welded to the leading pipe 15 by means of transition ribs 16 diameter. The installation is connected to the pipe 15 by means of an interchangeable adapter 7 with passages through which the self-transporting soil passes through the pipe.

When pushing a pipe with bitumen insulation, a crown is welded to the head end of the lead pipe, the diameter of which exceeds the diameter of the pipe by 60-80 mm.

Subject invention

Claims (2)

1. Device for trenchless laying of pipes in soils, including vibratory hammer with striker, pipe with tip, anvil and guides, characterized in that, in order to increase productivity, its the vibrohammer is mounted in a frame installed on the guides, on which an anvil and a removable adapter are installed with a crushed and attached at the same time working member pipe that is wetted inside with water and terminated in a tip concentrically attached to it with a diameter of smaller than the diameter of the crushable pipes. 2. A device according to claim 1, characterized in that, in order to allow the pipe to be removed from the well, the vibro hammer is adapted to attach its striker to both sides in the direction of the axis of action of the vibratory hammer, and the anvil has the possibility of rearranging on the frame according to the location of the striker of the vibratory hammer. /five