JP3405537B2 - Pneumatic caisson - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic caisson, and particularly to repair work when an excavator breaks down,
Further, the present invention relates to a pneumatic caisson suitable for dismantling and recovering an excavator after ground excavation for sinking a caisson.

[0002]

2. Description of the Related Art Conventionally, pneumatic caissons have been excavating with excavators. With the technical development of the remote control of the excavator, it is not necessary for the worker to enter the work chamber during excavation work by the excavator.

By the way, as a conventional technique for performing required work, a worker is placed in a work room at the time of repairing when an excavator breaks down, or when disassembling / recovering the excavator after ground excavation for sinking a caisson. There are a technique of entering and repairing or recovering the excavator, and a technique of once taking the excavator into the recovery lock and repairing or recovering it.

Among the above-mentioned conventional techniques, in the technique in which the worker enters the work chamber to repair or recover the excavator, the worker enters the work chamber under high pressure to perform the repair or dismantling / recovery work of the excavator. I am trying to do it.

Among the above-mentioned conventional techniques, in the technique of once taking in the excavator in the recovery lock for repair or recovery, the excavator is once recovered in the recovery lock. When repairing the excavator, the operation of the slide boom of the excavator is checked and the traveling operation is checked in the recovery lock to repair the faulty part. Also, when dismantling and recovering the excavator after ground excavation to sink the caisson, the work lock is filled with bottom-filled concrete, then the material lock, shaft, etc. are dismantled, and the excavator is recovered in the recovery lock. Is being pulled out of the recovery lock.

[0006]

Of the above-mentioned conventional techniques,
In the technique in which the worker enters the work chamber to repair or recover the excavator, the worker must enter the work chamber under high atmospheric pressure, which is not preferable in terms of health management of the worker.

On the other hand, in the technique of once taking the excavator into the recovery lock for repair or recovery, since the recovery lock is narrow, it is difficult to check the operation of the slide boom of the excavator and the traveling operation within the recovery lock. Since it has to be carried out in, there is a problem that not only the work efficiency is not improved but also there is a danger.

The present invention has been made to solve the above-mentioned problems, and its purpose is to perform repairs when an excavator breaks down or after excavation of the ground for sinking caisson. An object of the present invention is to provide a pneumatic caisson capable of efficiently and safely performing required work without a worker entering the work room under high pressure when dismantling and recovering an excavator.

Further, another object of the present invention is to further improve the workability in repairing the excavator when it breaks down or in disassembling / recovering the excavator after ground excavation for sinking the caisson. To provide a pneumatic caisson to get.

[0010]

In order to achieve the above object, according to the present invention, a lower slab B ₁ and an upper slab B ₂ are constructed on a caisson skeleton A at a predetermined interval in the vertical direction, and the lower slab is constructed. forming a working chamber C to the lower B _1, to partition the space between the lower slab B ₁ and the upper slab B ₂ in the gas閘室E and excavator maintenance chamber F, the gas閘室E in the lower slab B ₁ An opening 3 that connects the work room C and the air lock room E and is provided with a hatch 4 is provided at the location of the excavator maintenance room F at the location of the excavator maintenance room F of the lower slab B ₁ . Conclusion and F and an opening 7 having a hatch 8, the position of the gas閘室E in the upper slab B _2, erected equipment 15 in and out for workers, drilling in the same upper slab B ₂ An excavator storage part 2 capable of accommodating a part of the excavator 51 at a location of the machine maintenance room F. The provided, the top of the excavator housing portion 23 via a profiled shaft 25, material lock 43
The bucket shaft 42 provided with is erected.

In order to achieve the above object, the present invention
Is caisson frame A, lower slab B ₁Build under this
Division Slab B₁A working chamber C is formed below the
B B ₁On top of the lower slab B₁And upper slab B_TwoEvery second
Wall D₁A space surrounded by and is formed, and this space is the lock room E
And the excavator maintenance room F.₁To
Connect the work room C and the lock room E to the location of the lock room E
The lower slab B is provided with an opening 3 provided with one hatch 4₁
At the excavator maintenance room F in
An opening 7 that connects the storage room F and has a hatch 8 is provided.
The upper slab B_TwoWorker in the lock room E in
The slab B for the upper part of the building is equipped with a loading / unloading facility 15._TwoPart of
In addition, a part of the excavator 51 can be stored and the storage cap 2
The excavator housing 23 closed by 6 is provided,
B B₁And a bucket shear equipped with a material lock 43
The foot 42 is erected.

Further, in order to achieve the above object, in the present invention, a space surrounded by the lower slab B ₁ , the upper slab B ₂ , the partition wall D ₁ and the side wall of the caisson skeleton A is provided above the lower slab B _1. This space is divided into a lock room E and an excavator maintenance room F.

Further, in order to achieve the above object, in the present invention, a traverse rail 21 and a traveling rail 22 for moving the excavator 51 are attached to the ceiling of the excavator maintenance room F.

In order to achieve the above-mentioned object, in the present invention, the opening 7 connecting the working chamber C and the excavator maintenance room F.
The hoisting and supporting equipment for the excavator 51 is provided across the excavator maintenance room F and the excavator storage section 23.

Further, in the above, the partition wall D or the partition wall D ₂ provided between the lower slab B ₁ and the slab B ₂ is provided with an opening 12, and the hatch 13 provided in this opening 12 is provided.
To allow you to come and go freely.

[0016]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings.

1 to 6 show a first embodiment of the present invention, in which FIG. 1 is a vertical front view, and FIGS. 2 to 6 show a process of feeding an excavator from a working room to an excavator maintenance room. FIG.

In the first embodiment, as shown in FIG.
A lower slab B ₁ and an upper slab B ₂ are constructed on the caisson skeleton A with a required space in the vertical direction.

A working chamber C is formed below the lower slab B ₁ as shown in FIG.

As shown in FIG. 1, the space between the lower slab B ₁ and the upper slab B ₂ is divided by a partition D into an air lock chamber E and an excavator maintenance room F.

As shown in FIG. 1, a man lower hatch anchor 1 is attached to a location of the air lock chamber E in the lower slab B ₁ , and a man lower hatch 2 is attached to an upper part of the man lower hatch anchor 1. It is connected. And
An opening 3 is provided which connects the working chamber C and the lock chamber E via the man lower hatch anchor 1 and the man lower hatch 2. The opening 3 is provided with a hatch 4.

Excavator maintenance room F in the lower slab B ₁
As shown in FIGS. 1 to 6, a lower recovery hatch anchor 5 is attached to this position, and a lower recovery hatch 6 is connected to the upper part of the lower recovery hatch anchor 5. An opening 7 is provided which connects the working chamber C and the excavator maintenance room F via the lower recovery hatch anchor 5 and the lower recovery hatch 6. This opening 7 has a hatch 8
Is equipped with. Further, in the opening 7 near the lower part,
As shown in FIGS. 1 to 6, a plurality of recovery block lower pedestals 9 forming a set are fixed. These recovery block lower pedestals 9 constitute lifting support equipment for the excavator 51, which will be described later.

Lower slab B ₁ which is the ceiling of the working room C
As shown in FIGS. 1 to 6, a traverse rail 10 and a traveling rail 11 of the excavator 51 are attached to the lower surface of the excavator 51.

As shown in FIG. 1, the partition wall D is provided with an opening 12 connecting the air lock chamber E and the excavator maintenance room F. The opening 12 has a hatch 13.

As shown in FIG. 1, an opening 14 is provided at the location of the air lock chamber E in the upper slab B _2, through which an operator access facility 15 is provided.
Is erected. The access facility 15 for this worker is
A bottom shaft 16 inserted into the air lock chamber E, an elevator shaft 17 connected to the upper portion of the air lock chamber E, a stage shaft 18 attached to the upper portion of the bottom shaft 16, an elevator 19, and an entrance / exit of the bottom shaft 16. And a hatch 20 provided in the. Note that these entry / exit facilities may be at the stage of the spiral or the like.

_On the lower surface of the upper slab B ₂ which is the ceiling of the excavator maintenance room F, as shown in FIGS.
One traverse rail 21 and a traveling rail 22 are attached.

At the location of the excavator maintenance room F in the upper slab B ₂ , as shown in FIGS.
The excavator storage portion 23 is provided on substantially the same axis as the opening 7 that connects the excavator maintenance room F to the excavator maintenance room F. The excavator storage unit 23 is configured to have an upper storage unit anchor 24 attached to the upper slab B ₂ and a deformed shaft 25 connected to the upper portion thereof. Then, the excavator storage portion 23 is formed so as to be able to store an upper portion as a part of the excavator 51.

A hoisting and supporting facility for the excavator 51 is provided across the opening 7 connecting the working chamber C and the excavator maintenance room F, the excavator maintenance room F, and the excavator storage 23. The hoisting and supporting equipment includes a plurality of sets of the lower recovery block pedestals 9, a plurality of the upper recovery block pedestals 28, and a plurality of the plurality of pulley block mounting members. Cradle 31, pulley block 33, recovery block 35, winch 38,
It comprises a row of pulleys 39 and wires 40. The arrangement of the wires 40, the winch 38, etc. may be changed for convenience. As described above, each recovery block lower pedestal 9 is fixed to the lower part inside the opening 7 connecting the working chamber C and the excavator maintenance room F. Each recovery block upper pedestal 28 is pin-coupled to the bracket 27 fixed to the lower part of the upper storage part anchor 24, as shown in FIG.
5 is attached so that it can be set in a vertical posture and a horizontal posture shown in FIG. Of the plurality of recovery block upper pedestals 28, a horizontal rail member 29 is provided on the recovery block upper pedestal 28 on the side of the horizontal rail 21 attached to the ceiling of the excavator maintenance room F. As shown in FIG. 5, the traverse rail member 29 is connected to the traverse rail 21 of the excavator maintenance room F when the recovery block upper pedestal 28 receives the recovery block 35 supporting the excavator 51. Has become. Each pulley block mounting member pedestal 31 is fixed to the upper side inside the deformed shaft 25, and supports the pulley block mounting member 32. The pulley block 33 is suspended and supported under the pulley block mounting member 32. The recovery block 35 is suspended and supported by a lower pulley of the pulley block 33 via a suspension wire 34. A traverse rail member 36, a traveling rail member 37, and a lock mechanism (not shown) are provided below the recovery block 35. The traverse rail member 36 and the traveling rail member 37 receive the excavator 51 from the traverse rail 10 and the traveling rail 11 mounted on the ceiling of the work chamber C, and the excavator 51 is provided on the recovery block upper pedestal 28. It is provided so that it can be delivered to the traverse rail 21 and the traveling rail 22 attached to the ceiling of the excavator maintenance room F via the traverse rail member 29.
In the lock mechanism, after the recovery block 35 receives the excavator 51 in the working chamber C, the excavator 51 is transferred to the excavator maintenance room F via the traverse rail member 29 of the recovery block upper pedestal 28. The excavator 51 is locked so as not to fall off from the recovery block 35. The winch 38 is fixed on the lower slab B ₁ . The winch 38 has a wire 40 that is pulled out from the pulley block 33 and hung on the row of pulleys 39.
Is wound, and the pulley block 33 can be lowered or raised by paying out or winding up the wire 40. Here, wire 4
Although the case of pulling up at 0 is described, a chain, a cylinder or the like may be used as other cases.

Deformed shaft 25 of the excavator housing 23
At the top of the bucket shaft 42, as shown in FIG.
And the material lock 43 are connected in series. Then, through the material lock 43, the bucket shaft 42, the excavator storage portion 23, the excavator maintenance room F, the opening 7 connecting the working chamber C and the excavator maintenance room F, the wire 4 is provided between the working chambers C.
5, the earth and sand bucket 44 suspended and supported by 5 can be passed.

As shown in FIGS. 1 to 6, the excavator 51 has a traveling body 5 having traverse wheels 52 and traveling wheels 53.
4, a swing body 55, a slide boom 56, a derrick cylinder 57, an arm 58, an excavation bucket 59, and the like.

Next, a method of using the first embodiment having the above structure will be described.

First, the ground G at the bottom of the working room C is excavated,
When sinking the caisson, after keeping the working chamber C at high pressure, as shown in FIG. 1, the excavator 51 is operated by remote control along the traveling rail 11 attached to the ceiling of the work C, The ground G is excavated by the excavation bucket 59 of the excavator 51. Next, the earth and sand bucket 44 is passed through the material lock 43, the bucket shaft 42, the excavator storage section 23, the excavator maintenance room F and the opening 7, and is fixed on the ground G at the bottom of the working room C. The excavated earth and sand is loaded in the earth and sand bucket 44, the earth and sand bucket 44 is pulled to the ground, and the earth is discharged.

The above-mentioned work is repeated to excavate the ground G in the working chamber C and sink the caisson.

By the way, when the excavator 51 breaks down and is repaired, or when the excavator 51 is recovered after the ground excavation for sinking the caisson, it is performed as follows.

First, the hatch 4 of the opening 3 connecting the working chamber C and the lock chamber E and the hatch 8 of the opening 7 connecting the working chamber C and the excavator maintenance room F are closed to close the lock chamber E. And excavator maintenance room F
Is reduced to almost atmospheric pressure.

Then, through the material lock 43 and the bucket shaft 42, the pulley block mounting member 32, the pulley block 33, the suspension wire 34, the recovery block 35, and the wire constituting the lifting support equipment of the excavator 51 are inserted into the excavator housing section 23. Bring in 40 etc.

Then, the worker enters the air lock chamber E through the access facility 46 or the access facility 15 and then enters the excavator maintenance room F through the hatch 13 of the opening 12 provided in the partition D, and the excavator. A pulley block attachment member 32 is installed on the pulley block attachment member pedestal 31 of the lifting support equipment 51, a pulley block 35 is attached to the pulley block attachment member 32, and a recovery block is attached to the pulley block 33 via a hanging wire 34. 35 is suspended and supported. On the other hand, the wire 40 is pulled out from the pulley block 33, the wire 40 is hung around the row of pulleys 39 and the winch 38, and the hoisting support equipment of the excavator 51 is assembled to be usable.

Next, as can be seen from FIG. 2, the excavator 5
After setting the respective recovery block upper pedestals 28 in the lifting support equipment of No. 1 in the vertical direction, the air lock chamber E and the excavator maintenance room F are again made to have the same pressure as the working chamber C, and the working chamber C and the excavator maintenance room F are separated from each other. The hatch 8 provided in the connecting opening 7 is opened, the wire 40 is paid out by the winch 38 of the lifting support equipment of the excavator 51, the recovery block 35 is lowered, and the lower part of the recovery block fixed to the lower part of the opening 7 is fixed. The recovery block 35 is installed on the cradle 9. In this state, the traverse rail 1 attached to the ceiling of the working room C
The traverse rail member 36 provided at the lower part of the recovery block 35 is connected to 0.

Then, the excavator 51 in the working room C is moved to the position of the opening 7 along the traverse rail 10 as shown by an arrow a in FIG. 2, and as shown in FIG. The traverse wheel 52 of the excavator 51 is mounted on the traverse rail member 36 of 35, the traveling wheel 53 of the excavator 51 is mounted on the traveling rail member 37 provided on the recovery block 35, and the excavator 51 is transferred to the recovery block 35. . Then, the lock mechanism (not shown) provided in the recovery block 35 is activated to lock the excavator 51 from the recovery block 35 so as not to drop out.

Next, as shown in FIG. 3, the wire 40 is wound up by the winch 38 of the hoisting and supporting equipment of the excavator 51, and the recovery block 35 and the excavator 51 are connected to each other through the pulley block 33 and the suspension wire 34. At the same time as it is pulled up as indicated by arrow b, the derrick cylinder 57 provided in the excavator 51 gradually controls the attitude of the slide boom 56 and the arm 58 in the vertical direction as indicated by arrow c in FIG. Then, the wire 40 is wound up by the winch 38, the excavator 51 is taken into the excavator maintenance room F, and the hatch 8 provided in the opening 7 is closed. Then, the air lock chamber E and the excavator maintenance room F are adjusted to almost atmospheric pressure.

Next, as shown in FIG. 4, each recovery block upper pedestal 28 provided in the excavator storage portion 23 is set in a horizontal state. In this state, the traverse rail member 29 provided on one of the recovery block upper pedestals 28 is connected to the traverse rail 21 attached to the ceiling of the excavator maintenance room F.

Then, the wire 40 is paid out from the winch 38 of the hoisting and supporting equipment of the excavator 51, and the arrow d is shown in FIG.
As shown in FIG.
At the same time when the recovery block 35 and the excavator 51 are pulled down via the, the derrick cylinder 57 of the excavator 51 gradually controls the slide boom 56 and the arm 58 in the horizontal direction as indicated by the arrow e in FIG. To do. And FIG.
As shown in FIG. 3, the recovery block 35 is installed on the recovery block upper pedestal 28 which is set horizontally. In this state, the traverse rail member 36 provided on the collection block 35 is connected to the traverse rail member 29 provided on one of the collection block upper pedestals 28. Then, the excavator 51 by the lock mechanism provided in the recovery block 35
Unlock.

From this state, the traverse rail member 36 and the traveling rail member 37 provided on the recovery block 35, and the traverse rail member 29 provided on the recovery block upper pedestal 28 are used to move the excavator 51 to the arrow f in FIG. Then, it is sent to the excavator maintenance room F as shown by. Subsequently, as shown in FIG. 6, the excavator 51 is moved to a position suitable for work in the excavator maintenance room F along the traverse rail 21 and the traveling rail 22 attached to the ceiling of the excavator maintenance room F. .

Then, the hatch 13 of the opening 12 connecting the lock chamber E and the excavator maintenance room F is opened, and the worker enters the excavator maintenance chamber F from the lock chamber E.

When repairing the failure of the excavator 51, the operation of the slide boom 56 of the excavator 51 and the traveling operation are checked in the excavator maintenance room F to find out the location of the failure and repair it. To do.

After repairing the excavator 51, the excavator maintenance room F
From the work room C to the working room C, the traverse rail 21 and the traveling rail 22 attached to the ceiling of the excavator maintenance room F, and the traverse provided on one of the recovery block upper pedestals 28 of the lifting support equipment of the excavator 51. A traverse rail member 36 provided on the recovery block 35 via the rail member 29.
The excavator 51 is transferred to the traveling rail member 37, the excavator 51 is handed over to the recovery block 35 waiting on the recovery block upper pedestal 28, and the lock mechanism provided in the recovery block 35 is engaged to recover the recovery block 35. The excavator 51 is locked so as not to drop from the 35. Then, excavator 5
At the same time as 1 is lifted together with the recovery block 35 into the excavator storage unit 23 by the hoisting and supporting equipment, the slide boom 56 and the arm 58 are gradually controlled in the vertical direction by the derrick cylinder 57 of the excavator 51. Then, the hatch 8 provided in the opening 7 connecting the working room C and the excavator maintenance room F is opened, and the excavator 51 is introduced into the working room C through the opening 7. Then, the excavator 51
The recovery block 35 is placed on the recovery block lower pedestal 9 of the lifting support equipment, the lock mechanism is released, and the ceiling of the working chamber C is moved from the traverse rail member 36 and the traveling rail member 37 provided in the recovery block 35. The excavator 51 is sent to the traverse rail 10 and the traveling rail 11 attached to the.
Thereafter, the recovery block 35 is lifted to the excavator maintenance room F, and in the excavator maintenance room F and the excavator storage section 23,
Of the hoisting and supporting equipment of the excavator 51, the equipment on the path of passage of the earth and sand bucket 44, that is, the pulley block mounting member 32, the pulley block 33, the suspension wire 34, the recovery block 35, the wire 40, etc. are removed, and the excavator maintenance room is removed. F
It is stored inside or is carried out from the excavator storage 23 through the bucket shaft 42 and the material lock 43 to the ground and stored. Further, each recovery block upper pedestal 28 provided in the excavator storage unit 23 is set in the vertical direction.

When the excavator 51 is dismantled and recovered after the ground excavation for sinking the caisson, the worker dismantles the excavator 51 in the excavator maintenance room F and removes the dismantled equipment. It is carried to the ground through the bucket shaft 42 and the material lock 43 attached to the upper part of the excavator storage 23 and collected.

According to the first embodiment, the caisson frame A is used.
An air lock chamber E and a vast excavator maintenance room F can be formed between the lower slab B ₁ and the upper slab B ₂ constructed in the above, and the air lock chamber E and the excavator maintenance room F can be operated together. Since it can be adjusted to the atmospheric pressure separately from the chamber C, the excavator 51 is excavated at the time of repair when the excavator 51 fails, or at the time of disassembling / recovering the excavator 51 after ground excavation for sinking the caisson. Since it is possible to collect the work in the maintenance room F and perform the required work, it is not necessary for the worker to enter the work chamber C under high atmospheric pressure, so that the problem of health management of the worker can be solved and the required work can be widened. Since it can be performed in the excavator maintenance room F, the excavator 51
It is possible to efficiently and safely carry out the confirmation / repair work and the disassembly / recovery work of the faulty part. It is also possible to store a plurality of excavators in the excavator maintenance room F.

Further, according to the first embodiment, the traverse rail 21 and the traveling rail 22 are attached to the ceiling of the excavator maintenance room F, and further the opening 7 connecting the working room C and the excavator maintenance room F. Since the hoisting and supporting equipment for the excavator 51 is provided across the excavator maintenance room F and the excavator storage section 23, excavation after ground excavation for repairing when the excavator 51 fails or for sinking the caisson. During dismantling and recovery of the excavator 51, work to send the excavator 51 from the working room C to the excavator maintenance room F, and work to send the excavator 51 from the excavator maintenance room F to the working room C after repairing the excavator 51. Can be performed more efficiently and safely.

Further, according to the first embodiment, the excavator storage section 23 is provided on substantially the same axis as the opening 7 connecting the working room C and the excavator maintenance room F in the excavator maintenance room F to excavate the excavator. Dismantling the excavator 51 at the time of repair when the machine 51 breaks down or after ground excavation for sinking the caisson
When the excavator 51 is sent from the working room C to the excavator maintenance room F at the time of recovery, the excavator 51 is hoisted by the hoisting and supporting equipment of the excavator 51, and at the same time, the slide boom 56 and the arm 58 of the excavator 51 are gradually increased. The attitude is controlled in the vertical direction, and in this state, the upper part of the excavator 51 is pulled up into the excavator housing section 23, and the excavator 51 is moved from the working room C to the excavator maintenance room F.
After lifting the excavator 51 into the excavator housing section 23, the excavator 51 is pulled down by the lifting support equipment of the excavator 51, and at the same time, the slide boom 56 and the arm 58 of the excavator 51 are gradually controlled in the horizontal direction. In the state, the excavator 51 can be sent from the lifting support equipment to the excavator maintenance room F, and when the excavator 51 is sent from the excavator maintenance room F to the working room C after repairing the excavator 51, The slide boom 56 of 51 and the arm 58 are horizontal, and the excavator 5
1 and the upper part of the excavator 51 is once pulled up into the excavator housing section 23 by the lifting support facility, and at the same time, the slide boom 56 and the arm 58 are gradually controlled in the vertical direction. Since the excavator 51 can be sent from the excavator maintenance room F through the opening 7 to the working room C, the height of the excavator maintenance room F and the excavator storage portion 23 can be kept low.

Next, FIG. 7 shows a second embodiment of the present invention and is a vertical sectional front view of a part thereof.

In the second embodiment shown in FIG. 7, the working chamber C
Two sets of traveling rails 11 are attached to the ceiling of the.
These two sets of traveling rails 11 are connected by the traverse rail 10.

Two sets of traveling rails 22 are also attached to the ceiling of the excavator maintenance room F. These two sets of traveling rails 22 are also connected by the traverse rail 21.

Therefore, in the second embodiment, the ground G at the bottom of the working chamber C can be excavated simultaneously by the two excavators 51.

Further, in the second embodiment, when repairing when the excavator 51 fails, or when disassembling / recovering the excavator 51 after ground excavation for sinking the caisson,
The two excavators 51 can be successively sent to the excavator maintenance room F to perform required work.

Therefore, the second embodiment is particularly effective when applied to a large pneumatic caisson.

FIG. 8 is a vertical sectional front view showing the third embodiment of the present invention.

In the third embodiment shown in FIG. 8, the upper slab B ₂ is constructed above the lower slab B ₁ with a required space. Then, on the lower slab B _1, the space surrounded by the portion of the side wall of the lower slab B ₁ and the upper slab B ₂ and the partition D ₁ and caisson skeleton A is formed.

Below the lower slab B ₁ , there is a working chamber C.
Are formed. On the ceiling of the work chamber C, a plurality of sets of four traveling rails 11 are attached. These four sets of traveling rails 11 are connected by a traverse rail 10.

The space surrounded by the lower slab B ₁ , the upper slab B ₂ , the partition D ₁ and a part of the side wall of the caisson skeleton A is divided by the partition D ₂ into a lock room E and an excavator maintenance room F. It is divided into

At the location of the lock chamber E in the lower slab B _1, an opening 3 connecting the working chamber C and the lock chamber E via the lower manch hatch 1 and the lower mantle 2 of the man.
Is provided. The opening 3 is provided with a hatch 4.

At the location of the excavator maintenance room F in the lower slab B _1, there is provided an opening 7 connecting the working chamber C and the excavator maintenance room F via the lower recovery hatch anchor 5 and the lower recovery hatch 6. Has been. A hatch 8 is provided in the upper part of the opening 7, and a plurality of recovery block lower pedestals 9 are fixed near the lower part.

An opening 12 is provided in a partition D ₂ which divides the air lock chamber E and the excavator maintenance room F. The opening 12 has a hatch 13.

On the ceiling of the excavator maintenance room F, the excavator 5
One traverse rail 21 and a traveling rail 22 are attached.

At the location of the excavator maintenance room F in the upper slab B ₂ , an excavator storage section 23 is provided on substantially the same axis as the opening 7 connecting the working chamber C and the excavator maintenance room F. ing. In the third embodiment, the excavator storage unit 23 is of a hermetically sealed type, and includes an upper storage unit anchor 24 and a storage cap 26 detachably attached to the upper portion thereof.

A lifting support facility for the excavator 51 is provided across the opening 7 connecting the working room C and the excavator maintenance room F, the excavator maintenance room F, and the excavator storage 23. The hoisting and supporting equipment is fixed to the lower part of the opening 7 connecting the working chamber C and the excavator maintenance room F, and a plurality of recovery block lower pedestals 9 which form one set, and the excavator storage part 23. Upper part of the recovery block pedestal 28, which is pivotally supported by a bracket 27 fixed to the lower part of the
And a pulley block 33 suspended and supported on the ceiling of the storage cap 26 of the excavator storage portion 23 via a pulley block suspension metal fitting 30, and a suspension wire 3 attached to the pulley block 33.
4, a recovery block 35 having a traverse rail member 36 and a traveling rail member 37 at the bottom, a winch 38 fixed to the excavator maintenance room F, a row of pulleys 39 properly arranged, and the pulley. Pulled out from the block 33 and hung on the row of pulleys 39, and the winch 3
8 and a wire 40 wound around it.
In the hoisting and supporting equipment of the excavator 51 in the third embodiment, the pulley block 33 is attached to the pulley block mounting member 32 in the first embodiment, and the pulley block mounting member 32 is a modified shape of the excavator housing portion 23. The pulley block 33 is mounted on and supported by a plurality of pulley block mounting member pedestals 31 which are fixed to the shaft 25.
Pulley block hanging bracket 30 on the ceiling of the storage cap 26
The other configurations are the same except that they are directly suspended and supported.

A lower bucket hatch 41, a bucket shaft 42, and a material lock 43 are erected in series in a position separated from the air lock chamber E and the excavator maintenance room F in the lower slab B ₁ . Inside the series of lower bucket hatch 41, bucket shaft 42 and material lock 43, a sand and sand bucket 44 suspended and supported by a wire 45 can freely pass.

At the location of the air lock chamber E in the upper slab B _2, an access facility 46 for workers is erected.
This access facility 46 includes a man upper hatch anchor 47,
The man upper hatch 48, a man shaft 49, and a hatch 50 provided below the man shaft 49 in the man upper hatch 48 are provided.

In the third embodiment, a plurality of excavators 51 are used.
The ground G at the bottom of the working chamber C is excavated by. Then, the excavated earth and sand is passed through the lower bucket hatch 41, the bucket shaft 42 and the material lock 43 to the working room C.
It is put into the earth and sand bucket 44 introduced in the above, and the earth and sand bucket 44 is pulled up to the ground and discharged.

In the third embodiment, when the excavator 51 breaks down or is repaired, or when the ground excavation for sinking the caisson skeleton A is completed and dismantled or recovered, the excavator 51 in the working chamber C is lifted. At the same time as transferring to the collection block 35 of the support equipment, by this lifting support equipment, the hoisting equipment is hoisted into the excavator maintenance room F and the excavator storage portion 23 through the opening 7 connecting the working chamber C and the excavator maintenance room F. ,
The attitude of the slide boom 56 and the arm 58 of the excavator 51 is gradually controlled in the vertical direction. From this state, the excavator 51 is pulled down and at the same time, the slide boom 56 of the excavator 51 is lowered.
The posture of the arm 58 is gradually controlled in the horizontal direction, and in this state, the arm 58 is sent from the recovery block 35 of the lifting support facility to the excavator maintenance room F.

After repairing the failure of the excavator 51,
The excavator 51 is transferred from the excavator maintenance room F to the recovery block 35 of the hoisting and supporting equipment on standby, and the hoisting and supporting equipment temporarily pulls up the excavator 51 into the excavator housing section 23 and, at the same time, slides the boom of the excavator 51. 56 and the arm 58 are gradually attitude-controlled in the vertical direction, and in this state, the excavator 51 is introduced into the working room C through the excavator maintenance room F, the opening 7 connecting the working room C and the excavator maintenance room F, It is sent to the working chamber C from the recovery block 35 of the lifting support equipment.

When the excavator 51 is dismantled and then recovered, the hoisting support equipment of the excavator 51 is used to carry the dismantled equipment to a position suitable for carrying out in the excavator maintenance room F. . Then, the storage cap 26 is removed from the upper storage portion anchor 24 of the excavator storage portion 23, and the storage cap 26 and the equipment supported by the storage cap 26 side in the lifting support equipment of the excavator 51 are pulled up to the ground to perform excavation. The machine compartment 23 is released. Then, the disassembled excavator equipment is lifted from the excavator maintenance room F to the ground through the excavator storage section 23.

When recovering the equipment of the excavator after dismantling, it may be carried out to the ground through another route.

The other operation of the third embodiment is almost the same as that of the first embodiment.

Also in the third embodiment, a plurality of excavators 51 may be fed into the excavator maintenance room F.

According to this third embodiment, the lower slab B ₁
A space surrounded by the lower slab B ₁ , the upper slab B ₂ , the partition wall D ₁ and a part of the side wall of the caisson skeleton A is formed at the upper part of the space, and this space is excavated with the air lock chamber E by the partition wall D _2. Since it is divided into the machine maintenance room F, it can be easily applied to a ready-made caisson.

In the third embodiment, a space surrounded by the lower slab B ₁ , the upper slab B ₂ and the partition D ₁ is formed, and the space is defined by the partition D ₂ to maintain the lock room E and the excavator. It may be partitioned into a room F.

[0078]

As described above, according to the present invention, the caisson building frame A according to the present invention, to construct the lower slab B ₁ and the upper slab B ₂ vertically at a predetermined interval, of the lower slab B ₁ forming a working chamber C downwards, to partition the space between the lower slab B ₁ and the upper slab B ₂ in the gas閘室E and excavator maintenance chamber F, the position of the gas閘室E in the lower slab B ₁ ,
The excavator maintenance room F in the lower slab B ₁ is provided with an opening 3 that connects the work room C and the air lock room E and has a hatch 4.
An opening 7 that connects the work room C and the excavator maintenance room F and is provided with a hatch 8 is provided at the location of the above, and a worker access facility 15 is provided at the location of the lock room E of the upper slab B ₂ . provided upright, the position of the excavator maintenance chamber F in the upper slab B _2, the excavator housing portion 23 capable of housing a part of the excavator 51 is provided, profiled shaft at the top of the excavator housing section 23 Two
Since the bucket shaft 42 provided with the material lock 43 is erected via 5, the disassembling of the excavator 51 at the time of repair when the excavator 51 breaks down or after ground excavation for sinking the caisson. At the time of recovery, there is an effect that the worker can efficiently and safely perform the repair work, the dismantling work, and the recovery work of the excavator 51 without entering the work chamber C under the high pressure.

Further, according to the present invention, the caisson body A is
It constructs a lower slab B _1, the lower slab B ₁ of forming a working chamber C downwards, on top of the lower slab B _1, surrounded by the bottom slab B ₁ and the upper slab B ₂ and the partition D ₁ A space is formed, and the space is divided into a lock room E and an excavator maintenance room F. The work room C and the lock room E are connected and hatched at the location of the lock room E in the lower slab B ₁ . The opening 3 provided with 4 is provided, and at the location of the excavator maintenance room F in the lower slab B _1, there is provided an opening 7 that connects the working room C and the excavator maintenance room F and has a hatch 8. Upper slab B ₂
In and out facility 15 for workers at air lock room E in
And an excavator storage portion 23 capable of storing a part of the excavator 51 and closed by a storage cap 26 is provided at the upper slab B ₂ and the material lock 43 is provided on the lower slab B _1. Since the bucket shaft 42 provided is erected, the worker is under high pressure when repairing when the excavator 51 breaks down or when disassembling / recovering the excavator 51 after ground excavation for sinking the caisson. There is an effect that repair work, dismantling and recovery work of the excavator 51 can be performed efficiently and safely without entering the working room C, and also an effect that can be applied to a ready-made caisson.

Further, according to the present invention, the lower slab B ₁
On top of the lower slab B ₁ , upper slab B ₂ and partition D ₁
And a side wall of the caisson skeleton A are formed, and this space is divided into the lock room E and the excavator maintenance room F, so that the effect can be more easily applied to a ready-made caisson. There is.

Further, according to the present invention, since the traverse rail 21 and the traveling rail 22 for moving the excavator 51 are attached to the ceiling of the excavator maintenance room F, excavation into the excavator maintenance room F is performed. There is an effect that the excavator 51 can be sent in more efficiently and safely from the excavator maintenance room F to the other parts.

According to the present invention, the opening 7 connecting the working room C and the excavator maintenance room F, the excavator maintenance room F, and
Since the hoisting and supporting equipment for the excavator 51 is provided across the excavator storage section 23, the excavator 51 is sent to the excavator maintenance room F, and the excavator from the excavator maintenance room F to another part. There is an effect that the 51 can be sent out more efficiently and safely.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing a first embodiment of the present invention.

FIG. 2 is a diagram showing a state in which an excavator in a work chamber is transferred to a recovery block of a lifting support facility in the first embodiment.

FIG. 3 is a diagram illustrating a state in which, following FIG. 2, the excavator transferred to the recovery block is hoisted to the excavator maintenance room and the excavator storage unit by the hoisting and supporting equipment.

FIG. 4 is a diagram illustrating a process following FIG. 3 in which the excavator that has been temporarily suspended by the suspension support facility is pulled down to be sent to the excavator maintenance room.

FIG. 5 is a view showing a state in which, following FIG. 4, the excavator is pulled down to a position where it is sent to the excavator maintenance room by its lifting support equipment.

FIG. 6 is a view showing a state in which, following FIG. 5, the excavator has been sent into the excavator maintenance room from the recovery block of the lifting support facility.

FIG. 7 is a partial vertical sectional front view showing a second embodiment of the present invention.

FIG. 8 is a vertical sectional front view showing a third embodiment of the present invention.

[Explanation of symbols]

A caisson skeleton B ₁ lower slab B ₂ upper slab C working room D, D ₁ , D ₂ partition E air lock room F excavator maintenance room G ground 3 opening connecting the work room and air lock room 4 hatch 7 work room 8 hatch 10 for connecting the excavator maintenance room with the excavator maintenance room traverse rail 11 mounted on the ceiling of the working chamber 12 traveling rail 12 mounted on the ceiling of the work chamber 13 hatch 13 for connecting the lock chamber with the excavator maintenance room 15 Entry / Exit Facility for Workers 21 Traverse Rail Mounted on Ceiling of Excavator Maintenance Room 22 Traveling Rail Mounted on Ceiling of Excavator Maintenance Room 23 Excavator Storage 25 Deformed Shaft 26 Storage Cap 9, 27-40 Members constituting lifting support equipment for excavator 41 Lower bucket hatch 42 Bucket shaft 43 Material lock 44 Sediment bucket 46 Entry / exit facility for workers 51 Excavator 54 Traveling Body 55 Revolving Body 56 Slide Boom 57 Derrick Cylinder 58 Arm 59 Excavation Bucket

─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hiroshi Hosaka 1-24-4 Shinkawa, Chuo-ku, Tokyo Daitoyo Construction Co., Ltd. (72) Inventor Masanori Matsumoto 1-24-4 Shinkawa, Chuo-ku, Tokyo Daitoyo Construction (72) Inventor Naoaki Kouzuki 1-24-4 Shinkawa, Chuo-ku, Tokyo Daitoyo Construction Co., Ltd. (72) Inventor Ken Oshimi 1-24-4 Shinkawa, Chuo-ku, Tokyo Daitoyo Construction Co., Ltd. (72) Inventor Katsunori Takamura 1-24-4 Shinkawa, Chuo-ku, Tokyo Within Daitoyo Construction Co., Ltd. (56) References JP-A-9-228382 (JP, A) JP-A-9-125404 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) E02D 23/04 E02D 23/06

Claims (6)

(57) [Claims] 1. A caisson frame (A) is provided with a lower slab (B).
₁₎ and the upper slab (B ₂₎ and a vertical direction at a predetermined interval to build, working chamber (C) is formed below the lower slab (B _1), and a lower slab (B ₁₎ upper A space between the slabs (B ₂ ) is divided into an air lock chamber (E) and an excavator maintenance room (F), and a work chamber (C) is provided at a position of the air lock chamber (E) in the lower slab (B ₁ ). ) And the air lock chamber (E) and an opening (3) having a hatch (4) is provided, and the lower slab (B) is provided.
_The work room (C) and the excavator maintenance room (F) are connected to the location of the excavator maintenance room (F) in ₁ ) and the hatch (8).
An opening (7) provided with the above-mentioned upper slab (B ₂ ) is installed at the location of the air lock chamber (E) in the upper slab (B _2). ) In the excavator maintenance room (F), the excavator storage part (23) capable of storing a part of the excavator (51).
And a bucket shaft (42) equipped with a material lock (43) is erected on the upper part of the excavator storage (23) through a deformed shaft (25). . 2. The caisson frame (A) is provided with a lower slab (B).
₁₎ to construct the, the lower slab _{(B 1)} the working chamber (C) is formed under the, above the lower slab _{(B 1),} the lower slabs _(B 1)
A space surrounded by the upper slab (B ₂ ) and the partition wall (D ₁ ), the space is divided into a lock room (E) and an excavator maintenance room (F), and the lower slab (B) ₁ ), the opening (3) provided with the hatch (4) that connects the working chamber (C) and the lock chamber (E) is provided at the position of the lock chamber (E), and the lower slab (B ₁ ) In the excavator maintenance room (F), an opening (7) connecting the working chamber (C) and the excavator maintenance room (F) and having a hatch (8) is provided, and the upper slab (B) _In the air lock chamber (E) in ₂ ), a worker's access facility (15) can be installed upright, and a part of the excavator (51) can be stored in the upper slab (B ₂ ). And the excavator storage section (23) closed by the storage cap (26) is provided, and the material lock (43) is attached to the lower slab (B ₁ ).
A pneumatic caisson characterized in that a bucket shaft (42) provided with is erected. 3. A space surrounded by a lower slab (B ₁ ), an upper slab (B ₂ ), a partition wall (D ₁ ), and a side wall of the caisson skeleton (A) is provided above the lower slab (B ₁ ). Formed,
The pneumatic caisson according to claim 2, wherein this space is divided into an air lock chamber (E) and an excavator maintenance room (F). 4. The traverse rail (21) and a traveling rail (22) for moving the excavator (51) are attached to a ceiling of the excavator maintenance room (F). , 2 or 3 pneumatic caisson. 5. The working room (C) and excavator maintenance room (F)
The hoisting and supporting equipment for the excavator (51) is provided across the opening (7) connecting the, the excavator maintenance room (F), and the excavator storage (23). Two
Or the pneumatic caisson described in 3. 6. An opening (12) is provided in a partition wall (D or D ₂ ) provided between the lower slab (B ₁ ) and the slab (B ₂ ) and a hatch (12) provided in the opening (12). The pneumatic caisson according to claim 1, 2 or 3, wherein the pneumatic caisson can be freely moved in and out according to 13).