JPH01131722A - Pile driver capable of being dived and positioning device for said device - Google Patents

Abstract

PURPOSE: To move a pile driving device to a side toward a target by attaching a propeller or an injection nozzle to the pile driving device suspended from a working platform boat. CONSTITUTION: A support frame 33 is suspended from a rope 2 reeled out from a crane mounted on a platform boat, and a hammer housing 13 is attached to two columns 33 which protrude downward from the support frame 33 and are expanded and shrunk in a telescopic manner. A propeller 16 driven by a drive motor is provided on each column 33. Consequently, it is possible to move the hammer housing 13 easily and put it down on a head of a pile 8 because this pile driving device can move to a side when both propellers are rotated and driven in the same direction and can rotate around a vertical axis when they are rotated in the reverse directions.

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Application The invention relates to a striking body guided for axial movement in a hammer housing, a drive for this striking body, and The present invention relates to a submersible piling device with a device for suspending and fixing the piling device on a suspended flexible support element and to a positioning device for this device.

PRIOR ART A submersible pile-driving device of this type is disclosed in the Federal Republic of Germany, published application No. 2451488, 2454521.
No. 3,047,375 and has shown excellent results in underwater piling operations and in particular in operations for anchoring structures to the seabed.

Problems that the invention seeks to solve Since such underwater piling operations are carried out offshore and in increasingly deeper water, it is difficult to drive piles onto piles that have already been prepared for driving and are held in underwater structures. It becomes increasingly difficult to position the piling device, which has been loaded or lowered with the pile, so that the pile can reach the desired location, often the guide of an underwater structure. In both of these cases, the piling rig is suspended from very long lobes on the crane jib of the workboat, so that the piling rig follows the ship's movements only very slowly. For this reason, maneuvers of the work vessel and/or crane to bring the piling rig close to the target location on the seabed cannot be carried out quickly enough to make corrections. The intended movements of the crane jib and piling rig are combined with unintentional movements due to wind, waves and water currents that are often highly variable at different depths, making it extremely difficult to keep the piling rig on top of the pile for a very long time. This operation is completely impossible in adverse weather conditions. This wastes valuable working time for expensive work vessels and the significant amount of energy required to constantly move the vessels. be done.

The object of the invention is to make it possible by simple means to move a piling device suspended by a long rope laterally towards a target, independently of the movements of a working vessel and/or crane. The object of the present invention is to provide a submersible piling device and a positioning device for this device.

Means for Solving the Problems In order to solve the above-mentioned problems, a submersible pile driving device based on the great invention comprises a striking body guided so as to be axially movable in a hammer housing, and a striking body of the striking body. a) a submersible piling device comprising a drive device for driving the piling device and a device for suspending and securing the piling device on a flexible support element suspended in a substantially vertical direction, comprising: a) a piling device; A driving unit connected to the piling device for submersing together with the piling device, and/or a drive unit coupled to the piling device, which is suspended on a support element, has a lateral movement and/or a rotational movement. at least one positioning device is arranged for imparting a propeller, and each positioning device has at least one propeller rotatable about an axis of rotation perpendicular to the longitudinal axis of the hammer housing. c) each propeller is connected to an electric or hydraulic drive motor, and each injection nozzle is connected to an electric or hydraulic drive motor; - d) above the water surface for supplying electricity or pressure oil to the drive motor or for supplying pressurized gas to the combustion chamber or injection nozzle; The configuration includes a control device that can be operated from the ground.

Also, the first positioning device based on the great invention I Komoto.

a] Install the hammer housing (7) MI at the location.
at least one propeller capable of rotating around an axis of rotation in a direction perpendicular to M; b) an electric or hydraulic drive motor for the propeller; and C) a control device for the drive motor operable from above the water surface. It is structured as follows.

Furthermore, a second positioning device according to the invention comprises: a) at least one injection nozzle is provided at the mounting point in a direction substantially perpendicular to the longitudinal axis Iζ of the piling device; c) the combustion chamber is provided with an ignition device for the fuel mixture that can be actuated from above the water; d) the hammer housing or its support frame; or A drive unit (1) connectable to the pile driving device for submerging together with the pile driving device is provided with a device for removably fixing the positioning device.

Operation A piling device configured in this way is suspended by a support element, such as a rope, and lowered directly above the target point, after which it can be moved laterally much more quickly and easily by its positioning device. Therefore, its lower (13) introduction part is located exactly above the pile head. Therefore, by further lowering the pile driving device, it is possible to securely place the pile on the Cζ pile. In this case, the flow that can be created using a propeller or an injection nozzle in the positioning device Klζ is
The piling device, with or without suspended piles, must be sufficiently strong to be able to be moved laterally against submerged currents and/or rotated about its vertical axis. Since the piling device attached to a long rope can move in any direction like a pendulum, the radius of action of this piling device is determined by the driving capacity of the positioning device. In other words, with or without hanging piles, a pile driving device weighing more than 100 tons can be resisted even in the presence of water flow, with a slight increase in total weight equivalent to the swing of a pendulum. The radius of action is determined by the ability to move sideways.

Further advantageous embodiments of the pile driving device are specified in claims 2 to 17.

Based on the great invention (, Claim 18 or @
A positioning device for a piling device having the characteristics described in item 19 positions the piling device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the invention will now be described with reference to the accompanying drawings.

In Figures 1 and 2, the pile driving device! ! l hangs down from the jib of the crane 3 of the work vessel 4 by a long lobe 2 and is energized by a cable 5 that is paid out from a winch 6 above the work vessel 4 through a guide roll 7 suspended on the crane 3. . The cable 5 also contains all the control pipes necessary for the operation of the pile driver and the positioning device, and also the pipes for supplying compressed air to the hollow part of the pile driver in order to adapt to the surrounding water pressure.

These drawings show that a pile driving device 111 is suspended from a crane 3 of a work boat 4 by a lobe 2 with a length of up to about 1000 meters, and an introduction guide 17 attached to the lower end of the pile driving device 1 is attached to the head of a pile 8. This reveals the difficulty of lowering the head of the pile 8 guided by the guide part of the underwater structure 9 so as to overlay it. The pile driving device 1iix is suspended in deep water like a pendulum by a long lobe 2.
Due to the large length of the rope and the presence of water friction, the movements of the working vessel 4 and/or the crane 3 are only followed with a very large delay.Moreover, the resulting pendulum movement is , depending on the direction and the change in its length, the pile driving device 1 can easily come off and pass the pile head.

In the embodiment shown in Figures 3 and 4, the piling device 1 is suspended from a separate submersible drive unit 10, which unit 1G is suspended from a rope 11 of a winch 12 of a working boat. In this embodiment, Iζ also suffers from the same difficulties as described above. In both cases, work boat 4 against pile 8#ζ
The problem is further amplified by the fact that the relative positions of the crane jib are constantly changing due to wind, waves and currents, and that the heeling of the workboat 4 due to waves is amplified and transmitted to the rope 2 through the lever arm of the crane jib.

The pile driving device 1 shown in FIG. 5 includes an elongated, substantially cylindrical hammer housing 13, on the top of which an underwater drive unit IO is mounted in a manner that protects it from damage. There is. The hammer housing 13 has, in its central part, a through conduit 19. which has a circular cross section approximately corresponding to the cross section of the housing. It is equipped with A positioning device 14 having a propeller 16 that can be driven by a drive motor 19 is arranged in this through pipe 19a. A support protrusion 15a that protrudes radially outward is attached to the upper end of the hammer housing 13, and this support protrusion 15a is connected to another positioning device ff114a.
supports a guide tube 15 perpendicular to the longitudinal axis of the hammer housing 13. A propeller 16 that can be driven by a drive motor 19 is also mounted inside the guide tube 15 . @5
In the embodiment shown in the figures and in FIG. 6, the drive motors 19 each have a hydraulically driven rotor, which is not shown. This rotor is supplied with pressure oil through conduits 22, 23 and a control valve 21 by a hydraulic pump 20, which is used for the movement of the striking body 39; Reflux into the tank. The supply of pressurized oil to the drive motor 19 of the further positioning device 14a can take place by means of a hydraulic pump 20 of the drive unit 1O via corresponding lines (not shown) and control valves (also not shown). . Alternatively, it is also possible to drive the drive motor 19 electrically. However, a hydraulic drive is advantageous.

This is because the drive unit 10 operates the striking body 39 only after the pile driving device l is placed on the pile 8. However, since the positioning device is no longer needed at that time, the drive unit 10(7)' hydraulic drive tube is used to drive the propeller 16 of the positioning device 14, 14a when the pile driving device 1 is first placed on the pile 8. This creates a hole that can be used to drive the striking body 39 during later piling work.

When the pile driving device 1 is placed on the pile 8 by means of the introduction guide 17, the drive unit 10 can be stopped. However, at the same time another control valve 27 is switched,
If oil can be circulated without pressure into the pressure oil tank 26, the hydraulic pump 2o can continue to operate even after the control valve 21 is switched.

This is because otherwise the striking body would start moving unintentionally.

Instead of supplying pressure oil to the drive motor 19 of the positioning device 14, 14a to the hydraulic pump 2o of the submersible drive unit 1 (13), for example if the submersible drive unit 10 is not present, pressure oil is
It can also be supplied from a pressure medium source on the working vessel 4 using a corresponding long conduit.

However, this is generally uneconomical and is rarely practicable in relatively large water depths.

As long as the drive motor 19 is configured as an electric motor, the necessary electrical energy is obtained through the wires in the cable 5, in which case the switching device can be located on the working vessel tζ.

In the position shown in FIG. 7, the pile driving device 1 and its introduction guide 17 are located immediately above the upper edge of the tubular pile 8, but in this position, eccentricity has occurred. , it cannot be lowered and placed on the pile 8. According to the pile driving device l according to the present invention, first, the propeller 16 of the upper positioning device 14a is used to rotate the water device 1 around its longitudinal axis, and the rotation axis of the propeller 16 of the other positioning device 14 is set to the pile driving device 1. Orient it to the vertical axis of 8. The pile driving device 1 is then moved in any direction by the drive of the propeller 16 of the positioning device 14, so that the lower edge of the introduction guide 17 completely surrounds the extension of the cylindrical tube wall of the pile 8. By lowering the rope 2 at this position, the pile driving device 1 is lowered, and at this time, the conical inner wall of the introduction guide 17 drives the pile 8 as shown in FIG.
ζ Lead to the indicated position. Here hammer housing 1
Since the lower side of the impact transmission device 18, which can move limitedly in the axial direction within the impact body 3, rests on the upper edge of the pile 8, the impact transmission device 18
Due to the movement of 9, the pile driving force applied to the percussion transmission device 18 is transmitted from this device 18 to the pile 8. This loading process is appropriately monitored by remotely controlled underwater cameras and/or sensors that react when the element fζ approaches a marking element applied to or attached to the upper edge of the pile. can do.

The piling device shown in Figures 9 and 1Ofζ is similar to that in Figure 5, but with a hammer 1
No introduction guide 17 is disposed at the lower end of the impact transmission bag @2B, and the elongated piling device 1 is provided with an introduction taper 29 at the lower end of the impact transmission bag @2B. Internal tζ device of the tubular pile 3 (13) using this introduction taper 29! il can be introduced, and the percussion transmission device 28 rests on the internal shoulder 31 of the pile 3 (13) to which the percussion force of piling driving is to be transmitted, as shown in FIG. A compensator 32 is disposed at the upper end of the pile driving device 1, and includes a piston 32a that can move in a sealed manner in a cylinder. 53 is connected to the rope 2 through a shackle 53a. The cable 5 is introduced into the hammer housing 13 by means of a hollow piston rod 53. Compensation bag @ 32 is supported by stretching rope 2 1 work boat 4 or crane 3
Based on changes in the sea level (in order to compensate for the movement), the pile driving device [1 is always more reliable than the impact transmission device 28 and the pile 3o
It rests on the internal shoulder 31 of the.

In the case of the embodiment according to FIG. 5, the relatively large dimensions of the introduction guide 17 made it easier to place the device l on the stake 8, whereas in the case of the embodiment according to FIGS. 9 and 10,
Since the introduction taper 29 of the percussion transmission device 28 can only be formed to very small dimensions, it is necessary to carry the water device 1 a considerable distance above the pile 8 if ζ. This type of piling equipment is
Without a positioning device fζ Only by maneuvering on a work boat,
In fact, it cannot be introduced into the pile 8. Even when weather and wave conditions are favorable, the probability of success is very uncertain and a potentially extremely time-consuming and cumbersome mounting attempt is required. On the contrary, the pile driving device according to the invention is equipped with a first position 'a determining device, so that it can be moved laterally much more quickly and accurately, so that the introduction taper 29 can move the pile driving device 1. Then, when it is lowered, it smoothly enters the inside fζ of the tubular pile 3 (13).

In the embodiment shown in FIG.
is guided so that it can move within the support frame 33 in a limited manner. The support frame 33 has two thick rods 34 projecting downward on both sides of the housing 13 and a horizontal head 35 suspended from the lobe 2. Each of these rods 34 is a hollow column. It is guided so that it can move telescopically within 33a. The column 33a is connected to the horizontal pieces 33b''', !-, and the horizontal pieces 33b (
7) A hammer housing 13 is supported on top.

A guide tube 15 of a positioning device 114a is attached to the container 33a by a support plate projecting outward, and inside the guide tube 15 can be driven by a drive motor 19 similar to that shown in FIG. A propeller 16 is provided. Since the drive motor 19 can reverse its rotation direction, the pile driving device 1 can move laterally in parallel to the rotation axis of the propellers 16 by driving both propellers 16 to rotate in the same direction. Alternatively, by rotating both propellers 16 in opposite directions, the pile driving device 1 can be rotated around the vertical axis. Therefore, by combining both of these types, it is possible to move the piling device laterally in any desired direction. The drive motors 19 of the two positioning devices 14g can be configured as electric motors and can be supplied with electrical energy from the working vessel 4 via separate conductors 41 and 42 and a conductor integrated into the cable 5.

In the embodiment shown in FIG. 11, the piling device I is equipped with a transition striking body 36, which rests on the upper edge of the pile 8 by means of a ring shoulder 37.

In this embodiment as well, the introduction taper 3B can have extremely small dimensions for reasons of strength and for the requirements of piling technology. Therefore, without the configuration of the pile driving device equipped with the positioning device 14a according to the present invention fζ, there is little hope of success in trying to introduce the transition impacting body 36 into the pile 8 solely by maneuvering the ship. .

Pile driving device i! shown in Figure 12! 1 has almost the same configuration as that shown in FIG. 11, but an underwater drive unit having an electric motor 10a for driving a hydraulic pump 10t is attached to the top 5ζ of the upper girder 43 of the support frame 33. . Here, hydraulic oil is supplied from the oil tank 26 through the connecting pipe 45 to a not-illustrated hydraulic cylinder arranged in the hammer housing and for driving the striking body 39. After the work is completed, the hydraulic oil is transferred to the pressure oil tank 26 without pressure through the connecting pipe 46.
is refluxed to. Electric motor 10a is supplied with power via cable 5. The hydraulic drive motor 19 of the positioning device 14a is supplied with pressure oil 8 through connecting pipes 14, 49, 50 by a hydraulic pump 48 driven by an electric motor 47, and this oil is supplied to the drive motor of the pressure oil determining device 14a through a connecting pipe 51. 19 may have a structure in which both of them receive pressure oil from the same hydraulic pump 48. Alternatively, each drive motor 19 has its own transpressure pump 48 driven by an electric motor 47.
can be provided. Moreover, this hydraulic pump can be advantageously arranged in mirror-symmetrical positions on both sides of the support frame. In both cases, the connecting pipe is provided with suitable control valves (not shown) for switching forward and reverse or high and low speed individually.

The pile driving device w11 shown in FIGS. 13 and 14 has a configuration similar to that shown in FIG. 11. However, in this case, instead of the positioning device 14a equipped with the propeller 16, three positioning devices 14b are provided in the capacity 33a of the support frame 33, which are arranged above and below lζ at intervals. The container bags [x4b each include an injection nozzle 63 connected to the combustion chamber 56. In this embodiment, the combustion chambers 56 are each supplied with a solid fuel mixture, and the injection nozzles 63 are pressure-tightly sealed by means of conical closures (not shown) that fit tightly into the outward ring stages. Each combustion chamber '56 is equipped with an electric ignition device (not shown), which is connected via an electric wire 57 and cable 5 to an electric ignition bag b59.

The pile driving device al suspended by the rope 2 is attached to the pillar 33a.
In the case of movement in a lateral direction perpendicular to the plane passing through, the combustion chambers 56 of the two positioning devices 14b arranged on different columns 33a are ignited simultaneously. At this time, first, the gas jet causes the closing part to resist the external water pressure and open the injection nozzle 63.
The hot gas flow which is forced out of the injector nozzle 63 and then exits at high pressure and high speed from the injection nozzle 63 moves the entire pile driving device 1 in the desired direction at a relatively low speed. If it is first necessary to rotate the piling device gtl around its vertical longitudinal axis, the combustion chambers 63 may be ignited only in the positioning device 14b, which is fed with a small amount of solid fuel mixture. Ru.

In the embodiment shown in FIG. 15, the positioning device 14b moves the bearing ring 57a tζ at the position of the column 33a from this column 33a.
It is supported so as to be able to turn around a, and is provided with a hydraulic cylinder 58 for changing the turning position. The hydraulic cylinder 58 is connected to a hydraulic drive device for the striking body through a connecting pipe (not shown) and a switching valve corresponding to the connecting pipe, and the combustion chamber 56 is controlled in accordance with a control signal transmitted through the cable 5. together with the injection nozzle 63 toward the desired position.

However, the positioning device flt14b equipped with the injection nozzle 63
can also be connected to a ring-shaped pressure gas chamber 55 disposed within the column 33a via a check valve 54, as shown in FIG. Pressure gas chamber 55 contains pressure gas precompressed above the static pressure at the expected diving depth. In this embodiment, the intensity and duration of the gas jet exiting the injection nozzle can be controlled via the cable 5Eζ integrated control line by the purposeful actuation of a solenoid-controlled check valve 54. can. This allows the piling device bx to be rotated and/or moved laterally by a desired amount.

For example, a pile driving device weighing 100 tons, with a 40 ton lobe type and a 22 m” side flow bridge with a face, has a lobe length of 1000 m. In order to move the pile sideways by about 8 m, this requires a thrust of about 10 kN. This thrust is equivalent to a propeller drive output of about 90 kW, taking into account effective losses. It can be obtained immediately from the drive unit of the striking device, and the positioning device is never driven at the same time as the striking body.

The above-mentioned piling device described using a preferred embodiment includes:
Depending on the purpose of use, and also due to the number, arrangement and efficiency of the positioning devices, as well as other configurations regarding their drive method and connection with the existing drive system (dimensions 9 weight 8 center of gravity position, flow receiver area, etc.) Depending on the purpose, the piling device, suspended in the water by long lobes, can be configured in a variety of ways, insofar as it can be rotated and/or moved laterally toward the target 3ζ. Positioning devices used for rotation may be used to avoid or eliminate wrapping of cables and/or auxiliary lobes or conductors around the lobes, if necessary, caused by undesired rotation of the long lobes. I can be thoughtful.

Effects of the Invention As described above, the pile driving device of the present invention prevents work vessels and cranes from being shaken by wind or waves, and the pile driving device suspended from support elements such as lobes being displaced by water currents. The positioning device allows the pile driving device to be moved above the pile even when
It becomes possible to easily and reliably place it on the pile. Further, according to the positioning device for a pile driving device of the present invention, the above-mentioned pile driving device can be easily moved.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a piling device suspended by long lobes from a crane on a work boat according to the present invention, and FIG. Fig. 3 is a schematic diagram of the drive unit suspended by long lobes and separated from the piling device, and a schematic diagram of the piling device suspended from the drive unit; Fig. 4 Figure 5 is a diagram showing the pile driving device based on Figure 3 on the pile and the drive unit suspended on the side, and Figure 5 shows the pile driving device and the fixed underwater drive unit of the pile driving device lζ. Figure 6 is a schematic cross-sectional view of the positioning device attached to the upper end of the pile driving device according to Figure 5, and Figure 7 is a partial longitudinal cross-sectional view of the pile in Figure 5 before it is placed on the pile. A side view of the lower end of the driving device partially shown in cross section, Figure 8 is a view of the lower end of the pile driving device in Figure 7 at the position where it is placed on top of the pile, and Figure 9 is the pile head partially shown in longitudinal section. Figure 10 is a vertical cross-sectional view of the pile driving device shown in Figure 9 after it has been introduced into the pile head, and Figure 11 is a schematic side view of the lower end of the pile driving device with the song introduced into the pile head. A side view with a part of the pile driving device in cross section, Part 1
Figure 2 is a side view of the pile driving device shown in Figure 11 in the position placed on the pile, Figure 13 is a partially sectional side view of the pile driving device having a structure similar to that of Figure 11, Figure 14 is the first
A schematic cross-sectional view of the pile driving device in Figure 3, and Figure 15 is a schematic cross-sectional view of the pile driving device in Figure 1.
FIG. 16 is a schematic enlarged cross-sectional view of a modified example of the pile driving device in FIG. 3, and FIG. 16 is a schematic vertical cross-sectional view of the support frame column of the pile driving device in FIG. l... Pile driving device, 2... Rope (support element), 1
0... Drive unit, 11... Lobe (support element)
%13...Hammer housing, 14, 141,
141) -°・Positioning device, 16...Propeller,
19... Drive motor, 21... Control valve (control device)
, 39... Impacting body, 54... Check valve (control bag gl
), 55... Pressure gas chamber, 56... Combustion chamber, 6
3... Injection nozzle.

Claims (1)

[Claims] 1. A striking body guided so as to be axially movable in the hammer housing, a drive for this striking body, and a peg on a flexible support element suspended in an approximately vertical direction. A submersible piling device, comprising: a) a piling device (1) and a device for suspending and fixing the piling device; A piling device (1) suspended by support elements (2, 11) on at least one of the drive units (10) connected to the device (1)
at least one positioning device (14, 14) for imparting at least one of lateral movement and rotational movement to the
a, 14b) are arranged, and b) each positioning device (14, 14a, 14b) has at least one propeller (16) rotatable about an axis of rotation perpendicular to the longitudinal axis of the hammer housing (13). ) and mainly hammer housings (
c) each propeller (16) has an electric or hydraulic drive motor (19); Each injection nozzle (63) is connected to a pressure gas chamber (55) or a combustion chamber (56) for producing pressure gas for injection, and d
) Supply electricity or pressure oil to the drive motor (19), or
Or a submersible piling device, characterized in that it is equipped with a control device (21, 54) that can be operated from above the water surface for supplying pressurized gas to the combustion chamber (56) or the injection nozzle (63). 2. It has a support frame (33) that movably guides the hammer housing (13), and this support frame (33)
Submersible piling device according to claim 1, characterized in that at least one positioning device (14a, 14b) is arranged in the submersible piling device. 3. Hammer housing (13) or support frame (33)
Alternatively, at least one positioning device (1
4a, 14b) are arranged offset outwardly and are configured such that the flow created upon actuation of the positioning device (14a, 14b) causes the pile driving device (1) to rotate about its longitudinal axis. A submersible pile driving device according to claim 1, characterized in that: 4. Claims 1 to 3 characterized in that a movable flow guide surface is arranged in the flow region that can be created by at least one positioning device (14, 14a). A submersible piling device as described in one of the above. 5. Claims 1 to 4, characterized in that at least one propeller (16) is connected to a hydraulically drivable rotor of a drive motor (19) so as to rotate together with the rotor. A submersible piling device as described in one of the above. 6. at least one propeller in a guide tube (15) concentrically surrounding the propeller (16) or in a through channel (19a) that crosses the hammer casing (13) or the drive unit (10) at right angles; (16) A submersible pile driving device according to one of claims 1 to 5, characterized in that: (16) is arranged. 7. The drive motor (19) of the propeller (16) is configured to be driven by the hydraulic drive device (20) of the striking body (30) via the connecting pipes (22 to 25) and the reversing device (21). Submersible piling device according to one of claims 1 to 6, characterized in that: 8. The drive motor (19) of the propeller (16) is configured to be driven by a pressure medium source placed on the water via a pressure medium pipe. A submersible piling device according to one of paragraphs 1 to 7. 9. Claims 1 to 8, characterized in that the rotation axis of the propeller (16) is supported so as to be able to rotate within a plane substantially perpendicular to the longitudinal axis of the hammer housing (13). A submersible piling device as described in one of the preceding paragraphs. 10. Diving according to one of claims 1 to 9, characterized in that the drive motor (19) of the propeller (16) is configured such that its direction of rotation can be reversed. Possible piling equipment. 11. The injection nozzle (63) is connected via a check valve (54) with a pressure gas chamber (55) for precompressed pressure gas above the static pressure at the planned working diving depth. Submersible piling device according to one of claims 1 to 10, characterized in that: 12. One of claims 1 to 11, characterized in that the injection nozzle (63) is configured as an outlet opening of a combustion chamber (56) used for combustion of the fuel mixture. A submersible piling device as described in . 13. Submersible piling device according to claim 12, characterized in that the combustion chamber (56) is configured to receive a supply of a solid fuel mixture. 14. The combustion chamber (56) is equipped with an electric ignition device for the fuel mixture, which can be operated from above the water surface.
Submersible piling equipment as described in paragraph. 15. According to one of claims 12 to 14, characterized in that at least one injection nozzle (63) is configured to be able to rotate separately from other injection nozzles. submersible piling equipment. 16. Claims characterized in that the injection nozzle (63) is connected to the combustion chamber (56) via a closure device that can be actuated from above the water surface to throttle or interrupt the gas jet produced. Submersible piling device according to one of paragraphs 12 to 15. 17, injection nozzle (63) and this injection nozzle (63)
Claim 12, characterized in that the combustion chamber (56) connected to is constructed as a replaceably fixed unit in the pile driving device (1) or in the drive unit (10). A submersible piling device according to one of clauses 1 to 16. 18. A positioning device for a submersible piling device which is suspended and mounted on a flexible support element, comprising: a) rotation about an axis of rotation perpendicular to the longitudinal axis of the hammer housing (13) at the point of attachment; b) an electric or hydraulic drive motor (19) for the propeller (16); c) a control device (21) for the drive motor (19) operable from above the water surface; A positioning device for a submersible pile driving device, comprising: 19. A positioning device for a submersible piling device which is mounted suspended on a flexible support element, comprising: a) at the point of attachment at least one injection nozzle ( 63) are provided, b) each injection nozzle (63) is connected to a combustion chamber (56) for accommodating a fuel mixture which creates a pressure gas flow when combusted; c) the combustion chamber (56) is opened from above the water surface; d) the hammer housing (13) or its support frame (
33) or a drive unit (1) connectable to the piling device (1) for submersing together with this
A positioning device for a submersible piling device, characterized in that the device (14) is provided with a device for removably fixing the positioning device (14). 20. Positioning device for a submersible piling device according to claim 18, characterized in that it has at least one flow guiding surface movably mounted in the flow area to be created. 21. Positioning device for a submersible piling device according to claim 19, characterized in that it has at least one flow guiding surface movably mounted in the flow area to be created.