DE19822290C2 - Process and device for compacting vibratory pressure and vibrating plugging of binding and non-binding compaction material - Google Patents

Description

The invention relates to a method and a device for vibrating pressure and Vibratory plug compaction of binding and non-binding compaction material, especially of Loose rock with the features specified in the preamble of claim 1 and 8 respectively.

Such methods and devices are described, for example, in the published patent application DE 196 28 769 A1 and in the company publication: Bauer, Schrobenhausen "Foundation and Soil compaction with deep vibrators ". A process-controlled vibrator, as described for example in DE 196 28 769 A1, in the compaction material, under Addition of media (gas, liquid) retracted. The provision of energy for the Vibrator drive (electrical, hydraulic) and for the supplied media is carried out separately. It also describes how to optimize the operation of the vibrator Use of energy for the vibrating process to the desired degree of compaction compressing material to be compacted. Via a built-in Frequency converter, the vibrating frequency is changed so that this with a natural frequency of the continuum is brought into line. The volume flow that Composition (gas, liquid) and the pressure of the supplied media are during of the vibrating process regulated.

Disadvantages of the vibrators and vibrating methods described above are that Energy supply for the vibrator drive and for the volume flows towards the compressing material to be compressed (media, gas, liquid), from different Sources are done. This is the optimization of the shaking process with one process-controlled vibrators considerably more difficult. The regulation of the vibrating frequency and the Regulation of the volume flows of the supplied media as well as the coordination to the compressing material to be compressed takes place in different energy flows.

The task is therefore to specify a method or a device with which the above-mentioned disadvantages are eliminated and the vibrating process is optimized.

The object is achieved with a method according to claim 1 or a device Claim 8 solved.

Further refinements according to the invention are specified in the subclaims. By optimizing the way the vibrator works, the energy input for the Shaking process to the desired degree of compression of the binding and to be compressed matched non-cohesive compaction material. Optimizing the way the vibrator works is achieved in that the volume flow of the supplied media (gas, liquid) both used to drive the vibrator and metered onto the compaction material. As Machines that operate according to the static principle, such as screw motors, are driven by vibrators or work on the dynamic principle like turbines and with liquid and / or gas operated, used.

The volume flows of the supplied media are from above ground, e.g. B. by a Flushing pump unit, liquid and / or gas, e.g. B. generated by an air compressor and fed to the vibrator suspension. The volume flows of the liquid and / or the gas can be regulated, shared and / or merged with appropriate facilities become.  

The frequency of the vibrator is varied at the same time by regulating the volume flows. This makes it possible to set the vibration frequency to the natural frequency of the compaction material vote. The mechanical waves in the compaction material are caused by Vibration sensor, these being geophones, detected and the process control of the Vibrator fed. By tracking the frequency of the vibrator to the respective Natural frequency of the compaction material can constantly in the vibratory system Resonance.

Partial flows of the media (liquid, gas) are on the vibrating plate and / or in the Annular space directed between the nozzle tube and the wall of the vibrating hole. This will make the Willingness of the material to be compacted is generally considerably influenced. The Regulation of the vibrating frequency and supply of partial flows of the media (liquid, gas) The volume flows on the compaction material are now those from above ground fed media directly dependent. This optimizes the shaking process significantly qualified.

The dosing of fluids, the merging of gaseous and liquid media too a volume flow are possible and take place depending on the type of Compaction material and the vibrator drive used.

The invention largely contributes to the automation of the vibrating process.

The invention will be explained below using an example. In the associated The drawings show:

Fig. 1 principle of a process-controlled vibrator;

Fig. 2 equipment for operating the process-controlled vibrator;

Fig. 3 Schematic representation of the peripheral devices for a frequency-controlled operation of the process-controlled vibrator.

The implementation of the method for the vibrating pressure and vibrating plug compression of binding and non-binding compaction material ( 29 ) is realized with the use of the equipment shown in FIGS. 1, 2, 3.

The unbalance ( 11 ) of the vibrator ( 31 ) is driven by a hydrostatic drive such as a screw motor ( 6 ) or by a hydrodynamic drive such as a turbine. When using a screw motor, a cardan shaft ( 8 ) is required. The adaptation of the possible engine speeds to the required speeds of the unbalance ( 11 ) is carried out, for example, by a planetary gear ( 9 ) which, for. B. is connected via a clutch ( 10 ) to the unbalance ( 11 ). The vibrator housing is equipped on the outside with stabilizers ( 12 ) and stabilizing ribs ( 7 ). Via the media outlets ( 13 and 4 ), given by way of example in FIG. 1, they exit to the material to be compacted and / or into the annular space ( 30 ). An elastic connecting member ( 5 ) connects the vibrator ( 31 ) to the vibrator suspension ( 26 ). To operate the motor, a pressure line ( 2 ) and a return line ( 1 ) must be connected to the vibrator. Furthermore, the media liquid and / or gas are supplied via appropriate media lines ( 3 ). All feed and return lines are guided in coordination with the carrier device for the vibrator ( 35 ) as flexible lines ( 18 , 19 , 20 , 22 , 23 ) for the vibrator suspension, which also contains a device for connection to the carrier device ( 25 ).

A piston pump ( 16 ) is used to drive the motor ( 6 ) (e.g. screw motor) and draws the medium out of the suction tank ( 14 ) via the suction line ( 15 ). From the pressure line of the pump ( 16 ), a volume flow can be branched off via the pressure line ( 20 ) via a control valve ( 17 ) in order to change the willingness to compress the material to be compressed ( 29 ). A further pump can be added using a separate pump ( 21 ) and an air compressor ( 24 ). The data recorded by the vibration sensors ( 34 ) during operation of the vibrator are registered and evaluated by the electronic data processing and control system ( 27 ).

The necessary addition of the rolled material ( 33 ) takes place from the surface of the compacted material ( 28 ) z. B. over the annulus.

LIST OF REFERENCE NUMBERS

1

Return line from the engine

2

Pressure line to the engine

3

media lines

4

media outlets

5

Elastic connecting link

6

Drive of the vibrator (e.g. screw motor)

7

stabilizing ribs

8th

PTO shaft when using a screw motor

9

planetary gear

10

clutch

11

unbalance

12

stabilizer

13

media outlets

14

suction tank

15

suction

16

piston pump

17

control valve

18

Flexible return line

19

Flexible pressure line

20

Flexible pressure line for adding liquid

21

Pump for adding liquid

22

Flexible pressure line

23

Compressed air hose

24

air compressor

25

Connection to the carrier device

26

Rüttleraufhängung

27

Electronic data processing and control system

28

Surface of the compaction material

29

Verdichtungsgut

30

annulus

31

Jogger

32

Rüttellochsohle

33

Rolly material

34

Vibration Sensors

35

Carrying device

Claims (12)

1. Process for vibrating pressure and vibrating plug compression of cohesive and non-cohesive compaction material, in particular loose rock, with the addition of media, with a process-controlled vibrator, characterized in that the media supplied are used both to drive the vibrator and to change the compaction readiness of the material to be compacted become. 2. The method according to claim 1, characterized in that the media supplied Are liquid and / or gas. 3. The method according to any one of claims 1 and 2, characterized in that the degree of compaction achieved during the Compression process permanently determined and transferred to the process control becomes. 4. The method according to any one of claims 2 or 3, characterized in that the Volume flows and / or the pressure of the supplied media liquid and / or gas be matched to the vibrating process. 5. The method according to any one of claims 1 to 4, characterized in that the Mechanical energy supplied to the required compaction material Degree of compaction is currently coordinated. 6. The method according to any one of claims 2 to 5, characterized in that the Mechanical energy supplied via the volume flows and / or the pressure of the media liquid and / or gas is regulated. 7. The method according to any one of claims 1 to 6, characterized in that on the Volume flows and / or the pressure of the supplied media, the vibrating frequency is regulated. 8. Device for performing the method according to one of claims 2 to 7 with a process-controlled vibrator, characterized in that for driving the Rüttlers machines are used that like the static principle Screw motors or work according to the dynamic principle like turbines and with Liquid and / or gas can be operated. 9. Device according to claim 8, characterized in that the volume flows of supplied media liquid and / or gas can be regulated. 10. The device according to claim 8, characterized in that the pressures of the fed media are regulated. 11. Device according to one of claims 8 to 10, characterized in that the Device contains measuring devices that the during the compression process Permanently determine the degree of compaction of the material to be compacted. 12. Device according to one of claims 8 to 11, characterized in that the Data of the temporary degree of compaction during the vibration process in the Process control are transferred.