JP7267098B2 - Rescue facility and rescue method for pneumatic caisson method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a pneumatic caisson rescue facility used in a pneumatic caisson construction method and a rescue method using the same.

BACKGROUND ART Conventionally, a pneumatic caisson construction method is known in which a caisson frame is sunk into the ground to construct a concrete structure such as an underground facility. For example, Patent Literature 1 discloses a high-pressure indoor work method and a manlock filed by the applicant of the present application.

In Patent Document 1, a work process in which a worker 7 performs a predetermined work in a work room 6 below a caisson, a lifting process in which a portable manlock 2 is moved up and down through a material lock 43, and a portable manlock 2 are described. A high-pressure indoor work method comprising a connection step of connecting to a stay-type manlock 3 is disclosed (claim 1 of the scope of patent document 1, paragraphs [0044] to [0064] of the specification, 1 to 4, etc.).

However, the high-pressure room work method described in Patent Document 1 is a normal lifting facility, not a facility specialized in rescuing workers who have become ill in a high-pressure work room. It was necessary for the rescuer (required rescuer) himself or another worker of his colleague to hold the body of the rescuer and carry it into the chamber (portable manlock 2) of the lifting facility.

Also, rescue facilities used in the pneumatic caisson construction method are disclosed in Patent Documents 2 and 3 and the like. For example, Patent Document 2 describes a capsule outer cylinder (1) having a substantially cylindrical shape and a door (4) that can be opened and closed, and a lid (2) provided on the top of the capsule outer cylinder (1). and an expanded metal (3) provided at the bottom of the capsule outer cylinder (1) and provided with a chair (8) in which the worker (a) sits, and connected to a suspension lifting device , a worker rescue capsule for a pneumatic caisson capable of accommodating a worker (a) in a working chamber (12) of a pneumatic caisson (10) through a shaft (14) is disclosed (Patent Document 1). (See claim 1 of the utility model registration claims, paragraphs [0008] to [0015] of the specification, FIGS. 1 to 5 of the drawings, etc.).

However, the worker rescue capsule and rescue method for a pneumatic caisson described in Patent Document 2, similar to the capsule described in Patent Document 1, is a rescue capsule (elevating facility chamber) in which other workers hold a rescuer. ) had not been resolved.

Further, Patent Document 3 discloses a material shaft 6 extending upward with respect to the work chamber 3, a material lock 10 provided at a position above the work chamber 3 of the material shaft 6, and a worker M1 in the work chamber 3. and a storage device 20 that passes through the inside of the material shaft 6 and ascends and descends between the work chamber 3 and the material lock 10; The lock 10 is disclosed as a rescue facility having a treatment space 10a for treating the worker M1 (Claim 1 of the scope of patent document 3, paragraphs [0020] to [0043] of the specification, drawings 1 to 4, etc.).

The rescue equipment described in US Pat. No. 6,300,001 somewhat ameliorate the above-mentioned problem in that the chair is equipped with a deformable stretcher 25 . However, in the rescue equipment described in Patent Document 3, it was necessary for another worker to carry the rescuer to the storage device 20 on the stretcher 25 . In a work room where the ground is highly uneven during excavation due to high pressure, it is very hard work for another worker to carry a completely immobilized person who needs rescue alone, and there is concern about the health condition of the other rescue workers. There was also a problem.

JP 2015-4192 A Japanese Utility Model Laid-Open No. 7-34048 JP 2019-19593 A

SUMMARY OF THE INVENTION Accordingly, the present invention has been devised in view of the above-mentioned problems, and its object is to easily, safely and quickly transport and rescue even an unconscious person who cannot move at all. To provide a rescue facility and a rescue method for a pneumatic caisson construction method capable of

A rescue facility for pneumatic caisson construction according to claim 1 is a rescue facility for pneumatic caisson construction for rescuing a person requiring rescue in pneumatic caisson construction, wherein a hatch is formed at the bottom and connected to a lifting facility. A first pulley system having a fixed pulley and a movable pulley connected to the inner upper part of the first aid chamber, and the first pulley system. and a stretcher that can be lifted by two lifting facilities. It is characterized by:

The rescue facility for the pneumatic caisson construction method according to claim 2 is the rescue facility for the pneumatic caisson construction method according to claim 1, wherein a second pulley system having a fixed pulley and a movable pulley connected to the inner upper part of the rescue chamber and , and a saddle that can be lifted by this second pulley system.

The rescue facility for pneumatic caisson construction method according to claim 3 is the rescue facility for pneumatic caisson construction method according to claim 1 or 2, wherein the stretcher has a plurality of belts for fixing the rescuer, It is characterized by being a resin stretcher that covers more than one half of the whole body of the person.

The rescue facility for pneumatic caisson construction method according to claim 4 is the rescue facility for pneumatic caisson construction method according to any one of claims 1 to 3, wherein the rescue chamber is installed on the ground and treatment is performed while maintaining high pressure. and configured to be connectable to a hospital lock that can be used.

The pneumatic caisson rescue facility according to claim 5 is the pneumatic caisson rescue facility according to any one of claims 1 to 4 , wherein a stretcher capable of fixing a rescuer is provided on the inner surface of the rescue chamber. is detachably fixed.

A rescue facility for pneumatic caisson construction according to claim 6 is the rescue facility for pneumatic caisson construction according to any one of claims 1 to 5 , characterized by having a ramp that can hang down from the hatch.

A rescue method according to claim 7 is a rescue method for rescuing a person requiring rescue using the rescue facility for pneumatic caisson construction according to any one of claims 1 to 6 , wherein the first pulley system is used to , an in-chamber lifting step of lifting the person requiring rescue into the rescue chamber, a rescue chamber lifting step of lifting the rescue chamber to the ground while maintaining a high pressure equivalent to that of the high-pressure work chamber , and connecting the rescue chamber to the hospital lock. and a rescuer-requiring person transporting step of transporting the rescuer together with the stretcher to the hospital lock connected in the hoslock-connecting step.

A rescue method according to claim 8 is a rescue method according to claim 7 , wherein the rescue method uses the pneumatic caisson construction method rescue facility according to claim 2 to rescue a person requiring rescue, wherein the second pulley The system and the saddle are used to perform a posture changing step of lifting the thighs of the person requiring rescue and changing the posture to a sitting posture.

According to the inventions of claims 1 to 8 , rescue is performed by lifting a rescue chamber capable of maintaining a high pressure with a lifting facility. , even a person requiring rescue who has lost consciousness and cannot move at all can be transported and rescued easily, safely and quickly.

In addition, according to the inventions of claims 1 to 8 , since the pulley system is used to pull up the person requiring rescue into the rescue chamber, the person requiring rescue can be easily pulled into the rescue chamber with a force smaller than the actual force of gravity. can be done. Therefore, the physical burden on the rescuer can also be reduced.
In addition, according to the inventions of claims 1 to 8, the relief chamber can be quickly turned over and connected to the hospital lock, and in this respect also, rescue can be performed safely and quickly.

In particular, according to the inventions of claims 2 and 8, the hatch can be easily closed in a narrow rescue chamber, and a space for a rescuer to sit and wait on the hatch can be secured.

In particular, according to the third aspect of the invention, the stretcher wraps the person in need of rescue and pulls the person up into the first aid chamber. be able to. Therefore, in this respect as well, rescue can be performed safely and quickly.

In particular, according to the invention of claim 4, the person requiring rescue can receive medical treatment promptly without the risk of decompression sickness (hidden sickness), and the person requiring rescue can recover early. becomes.

In particular, according to the inventions of claims 5 and 7 , it is possible to protect a person requiring rescue when the relief chamber is overturned, and to transfer the person requiring rescue to the hospital lock quickly and in a short time. can.

In particular, according to the sixth aspect of the invention, the rescuer can get into the rescue chamber in a short period of time, and in this respect as well, the rescuer can be rescued safely and quickly.

BRIEF DESCRIPTION OF THE DRAWINGS It is a structure explanatory drawing which shows a part of main facilities used for the structure of the rescue facility for pneumatic caisson construction method and pneumatic caisson construction method which concern on embodiment of this invention. FIG. 3 is a configuration explanatory diagram showing the configuration of a rescue facility same as the above; Fig. 2 is a schematic configuration diagram schematically showing an outline of each component provided in a rescue chamber of the rescue facility; It is a photograph which shows a stretcher of a rescue facility same as the above. Fig. 10 is a photograph showing the first (second) pulley system of the same rescue facility; It is a photograph which shows the saddle of the rescue facility same as the above. (a) is a process explanatory view showing a rescue chamber insertion process of the rescue method according to the present embodiment, and (b) is a photograph showing a situation in which a person requiring rescue is put on a stretcher and fixed in the same process. . It is process explanatory drawing which shows the in-chamber raising process of the rescue method which concerns on this embodiment. It is process explanatory drawing which shows the in-chamber movement process of the rescue method same as the above. It is process explanatory drawing which shows the helium hose switching process of the rescue method same as the above. It is process explanatory drawing which shows the posture change process of the rescue method same as the above. It is process explanatory drawing which shows the rescue chamber pull-up process of the rescue method same as the above. It is process explanatory drawing which shows the rescue chamber overturning process of the rescue method same as the above, (a) has shown the state before overturning, (b) has shown the state in the middle of overturning. It is process explanatory drawing which shows the phos lock connection process of the rescue method same as the above. (a) is a process explanatory diagram showing a rescuer transfer process of the rescue method, and (b) is a diagram showing a state in which the rescue chamber is separated from the hospital lock. It is a photograph which shows the state which set the rail for a rescuer in the rescuer transfer process same as the above, and draws in a rescuer-required person with a chamber stretcher, (a) before retraction, (b) during retraction.

An embodiment of a pneumatic caisson rescue facility and a rescue method according to the present invention will now be described in detail with reference to the drawings.

<Rescue facility for pneumatic caisson method>
First, a pneumatic caisson rescue facility according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG. FIG. 1 is a configuration explanatory diagram showing the configuration of a pneumatic caisson construction method rescue facility 1 according to an embodiment of the present invention and a part of main facilities used in the pneumatic caisson construction method. Moreover, FIG. 2 is a configuration explanatory diagram showing the configuration of the rescue facility 1 for the pneumatic caisson construction method.

As shown in FIG. 1, a pneumatic caisson construction rescue facility 1 (hereinafter simply referred to as rescue facility 1) according to an embodiment of the present invention is mainly composed of a hospital lock 2, a rescue chamber 3, and the like. ing.

In FIG. 1, C1 is the caisson C1, and Ms and Mr are the material shaft Ms and the material lock Mr. Moreover, the code|symbol Df is the earth removal facility Df used for a pneumatic caisson construction method, and the code|symbol Lf is the lifting facility Lf. Further, the symbol Wr indicates a high-pressure work chamber Wr under a high-pressure environment adjusted to a high pressure corresponding to the depth at which the caisson C1 is submerged, and M1 is a worker who became ill in the high-pressure work chamber Wr. , a rescuer M1 who needs rescue. M2 indicates the rescuer M2 who is rescuing the rescuer M1.

(Hospital Rock)
The hospital lock 2 is a facility installed on the ground, and as shown in FIG. 23, an air purifier 24, an automatic pressure reducing device 25, a pressure equalization adjustment piping unit 26, and the like. This hospital lock 2 is divided into a main room 21 and an auxiliary room 22 so that entry and exit are possible even under high pressure. In addition, hospital lock 2 treats decompression sickness (latent sickness) in a high-pressure environment similar to the work inside the box, and returns to atmospheric pressure by slowly decompressing with an automatic decompression device. It is a facility for emergency care to let the patient recover from symptoms.

As shown in FIG. 2, the hospital lock 2 is connected to the sub-chamber 22 via an adapter spool 27 to the aid chamber 3, which will be described later. By installing R1, a stretcher 4, which will be described later, can be retracted.

(Relief chamber)
FIG. 3 is a schematic configuration diagram schematically showing the outline of each component provided in the rescue chamber 3. As shown in FIG. As shown in FIG. 3, the rescue chamber 3 includes a cylindrical chamber body 30, a stretcher 4 for transporting a rescuer M1, a first pulley system 5 for lifting the stretcher 4, and a A saddle 6 for setting the rescuer M1 in a seated posture, a second pulley system 7 for pulling up the saddle 6, etc. are provided.

In addition, the rescue chamber 3 has a high pressure similar to that of the high-pressure work chamber Wr due to the functions of the compressor 23, the air cleaner 24, the automatic decompression device 25, and the pressure equalization adjustment pipe unit 26 shown in FIG. configured to be maintainable.

As shown in FIG. 1, the relief chamber 3 is connected to a lifting facility Lf via a sling wire or the like, and can move up and down within the material shaft Ms. The lifting facility Lf refers to a lifting machine such as a tower clay or a crawler crane for carrying materials into and out of the high pressure work room Wr of the caisson C1 through the material shaft Ms.

The chamber main body 30 is a hollow cylindrical chamber whose longitudinal direction is the vertical direction of a diameter that allows passage of the material shaft Ms and the material lock Mr and whose upper end is closed. However, the chamber body 30 is not limited to a cylindrical shape, and may be a hollow housing that can pass through the material shaft Ms and the material lock Mr.

A suspension member 31 is provided at the upper end of the chamber body 30 and protrudes upward from the peripheral edge of the upper end. The suspension member 31 is formed with a shackle mounting portion 31a through which a shackle is inserted. The shackle mounting portion 31a is a hooking member for connecting a slinging wire so that it can be lifted by the lifting facility Lf.

On the other hand, an opening 30 a is formed at the lower end (lower portion) of the chamber body 30 , and the rescuer M 2 and the person requiring rescue M 1 can enter and exit the chamber body 30 via a hatch 32 .

In addition, the lower end of the chamber body 30 is provided with a hook 33 which is a locking member that can be pulled up by a lifting facility. As described above, since the upper end of the chamber main body 30 is provided with the shackle mounting portion 31a, the chamber main body 30 is formed with hooking members at both the upper and lower portions for lifting by the lifting facility. There will be Therefore, the rescue chamber 3 is lifted by two lifting facilities at two places, the shackle attachment part 31a and the hook 33, respectively, so that the vertically long chamber main body 30 is rotated 90 degrees and laid down to the hospital. It can be placed horizontally on the side of the lock 2 (see FIGS. 2, 13, 14, etc.).

In addition, a chamber stretcher 8 capable of fixing the rescuer M1 is provided on the inner surface of the rescue chamber 3 . The chamber stretcher 8 is detachably fixed. Further, from the opening 30a of the chamber main body 30, a reinforcing rod ramp 9 for elevating can be pulled out and suspended. However, the reinforcing rod ramp 9 may be kept in the high-pressure working room Wr instead of in the relief chamber 3 .

(stretcher)
FIG. 4 is a photograph showing the stretcher 4 according to this embodiment. The stretcher 4 according to the present embodiment employs a sked stretcher manufactured by CMC Rescue. As shown in FIG. 4, the stretcher 4 includes a stretcher body 40 made of flexible resin such as low-density polyethylene resin, and a belt 41 with a steel buckle attached to the stretcher body 40. consists of In addition, the stretcher 4 can be stored in a bag 42 shown in FIG. 4 when folded.

The stretcher 4 has the function of covering and protecting one half or more of the entire body of the rescuer by wrapping the stretcher body 40 made of flexible resin by tying it up with a belt 41 . Of course, the stretcher according to the present invention is not limited to the illustrated sked stretcher, and is not limited to resin as long as it is flexible and durable. However, the stretcher 4 is preferably made of flexible resin such as low-density polyethylene resin from the viewpoint of cost, strength and durability.

(First pulley system)
FIG. 5 is a photograph showing the first pulley system 5 according to this embodiment. As shown in FIG. 5 , the first pulley system 5 includes an aluminum pulley 50 that is a fixed pulley, an aluminum double pulley 51 that is a movable pulley, and these pulleys 50 and the double pulley 51 are wound. It is a quadruple power pulley system composed of ropes 52 and the like. That is, the first pulley system 5 is connected by a rope 52 by combining a fixed pulley and a movable pulley consisting of a double pulley, and the stretcher 4 accommodating the person requiring rescue is actually divided into quarters. It can be lifted with a force of 1.

Needless to say, the pulley 50 and the double pulley 51 are not limited to being made of metal such as aluminum, and may be made of any material as long as it has a predetermined strength. However, the pulley 50 and the double pulley 51 are preferably made of a lightweight and highly durable material such as aluminum.

The pulley 50 is a fixed pulley attached to the inner upper portion of the first aid chamber 3 via a carabiner, and is a unidirectional pulley that rotates in only one direction. Further, the pulley 50 is provided with a locking mechanism 53, and is a pulley with a locking function capable of locking the rotation of the pulley while a load is applied simply by pulling the drawstring 54.例文帳に追加

The double pulley 51 is a double pulley in which two pulleys are attached to one shaft, and a swivel (not shown) is incorporated to take up the twist of the pulley that receives a load.

(saddle)
FIG. 6 is a photograph showing the saddle 6 according to this embodiment. The saddle 6 is a tool that is attached to the backs of the thighs of the person in need of rescue to raise the thighs to a sitting posture. It should be noted that the saddle 6 is not limited to the illustrated form, and may be of a type that is individually attached to the thighs of both legs.

(Second pulley system)
As with the first pulley system 5 described above, the second pulley system 7 includes an aluminum pulley 70 that is a fixed pulley, an aluminum double pulley 71 that is a movable pulley, and these pulleys 70 and 71. A four-fold pulley system composed of wound ropes 72, etc. (see FIG. 5). However, the second pulley system 7 is a smaller pulley system than the first pulley system 5 described above.

Similarly to the pulley 50, the pulley 70 is also a fixed pulley attached to the inner upper portion of the first aid chamber 3 via a carabiner, and is a unidirectional pulley that rotates in only one direction. Further, the pulley 70 is provided with a locking mechanism 73, and is a pulley with a locking function capable of locking the rotation of the pulley while a load is applied simply by pulling the string.

<Rescue method>
Next, a rescue method according to an embodiment of the present invention will be described with reference to FIGS. 7 to 16. FIG. A case in which a rescuer M2 who is a fellow worker rescues a rescuer M1 who needs rescue in the high-pressure work room Wr using the rescue facility 1 will be described as an example.

(1) Rescue Chamber Insertion Process FIG. 7(a) is a process explanatory view showing the rescue chamber introduction process of the rescue method according to the present embodiment, and FIG. It is a photograph which shows the condition which puts on the letcher 4 and fixes. First, as shown in FIG. 7(a), in the rescue method according to the present embodiment, the rescue chamber 3 is lowered in the material shaft Ms using the lifting facility Lf (see FIG. 1) to perform high-pressure work. A first-aid chamber charging step is performed to charge up to the chamber Wr.

In this step, first, as shown in FIG. 1, the carrier Ca of the earth removal equipment Df, which is an obstacle when suspending the rescue chamber 3 in the material shaft Ms using the lifting facility Lf, is erected. Then, the hook of the lifting facility Lf and the rescue chamber 3 are connected using a sling wire, a shackle, etc., and the rescue chamber 3 is suspended in the material shaft Ms using the lifting facility Lf, and the high-pressure work room Wr put into

In this step, as shown in FIG. 7(a), the rescue chamber 3 is set at a predetermined height h1 from the excavated ground of the high-pressure work chamber Wr (a rescuer M2 opens the hatch 32 to open each of the chamber main bodies 30). Float only about 1.5m (easy to take out the equipment) and stop. Then, the hatch 32 is opened and the stretcher 4 and the rope 52 and the drawstring 54 of the first pulley system 5 are pulled down from the opening 30a. However, the stretcher 4 may be kept in the high-pressure work chamber Wr instead of being mounted in the rescue chamber 3 .

Further, in this step, the pulley hook attached to one end of the rope 52 is hooked to the harness and backpack of the rescuer M1, and then, as shown in FIG. It is placed on a stretcher 4, tied up with a belt 41 and fixed. As a result, the stretcher main body 40 made of flexible resin can cover and wrap the lower half or more of the whole body of the rescuer M1, and even if the rescuer M1 is dragged on the rubble in the next step, the rescuer is required. It is possible to eliminate the risk of injury to the person M1.

All workers working in the high-pressure work room Wr are obliged in advance to wear harnesses and backpacks for safety. For this reason, the person M1 requiring rescue is also wearing the harness/backpack in advance, and prompt rescue becomes possible.

(2) In-Chamber Lifting Process FIG. 8 is a process explanatory view showing the in-chamber lifting process of the rescue method according to the present embodiment. Next, as shown in FIG. 8, in the rescue method according to the present embodiment, the first pulley system 5 is used to move the person requiring rescue M1 along with the stretcher 4 (see FIG. 7(b)) into the rescue chamber 3. In-chamber pulling-up process is performed.

In this step, the rescuer M2 pulls one end of the rope 52 of the first pulley system 5 to lift the rescuer M1 together with the stretcher 4 into the rescue chamber 3 . At this time, as described above, since the first pulley system 5 is a quadruple force pulley system, the person requiring rescue M1 can be easily lifted into the rescue chamber 3 with one-fourth of the actual force.

In addition, since the pulley 50 of the first pulley system 5 is a one-way pulley equipped with the locking mechanism 53, the pulley can be rotated while the rescuer M1 is lifted by simply pulling the drawstring 54 by the rescuer M2. It can be locked (see FIG. 5). Therefore, the rescuer M2 can take a rest during the lifting, and in this respect, the burden on the rescuer M2 can be reduced, and the rescuer M1 can be easily lifted into the rescue chamber 3.

(3) In-Chamber Movement Step FIG. 9 is a process explanatory view showing the in-chamber movement step of the rescue method according to the present embodiment. Next, as shown in FIG. 9, in the rescue method according to the present embodiment, the rescuer M2 passes through the opening 30a (see FIGS. 7, 10, 3, etc.) and moves into the chamber main body 30. Carry out the transfer process.

In this step, the rescuer M2 installs the reinforcing bar ramp 9 that was always available in the high-pressure work room Wr in the opening 30a, climbs the reinforcing bar ramp 9, passes through the opening 30a, and enters the relief chamber 3 from the high-pressure working room Wr. Moving.

(4) Helium Hose Switching Process FIG. 10 is a process explanatory diagram showing the helium hose switching process of the rescue method according to the present embodiment. Next, as shown in FIG. 10 , in the rescue method according to the present embodiment, a helium hose switching step is performed to switch the helium hose that supplies helium gas to the high-pressure work chamber Wr so that it can be supplied to the rescue chamber 3 .

In this step, first, the rescuer M1 who was lifted up into the rescue chamber 3 in the chamber lifting process is transferred from the stretcher 4 to the chamber stretcher 8, and the rescuer M1 is fixed with the belt provided on the chamber stretcher 8. do.

In this step, a helium hose (not shown) that supplies helium gas to the high-pressure work chamber Wr is reconnected so that it can be supplied to the rescue chamber 3, and the supply destination is switched to the rescue chamber 3. This is because, when entering the relief chamber 3 and closing the hatch 32, the hose connected from the high-pressure work chamber Wr becomes an obstacle and the hatch 32 cannot be closed. This step is performed by the rescuer M2 in the rescue chamber 3. FIG. However, in FIG. 10, rescuer M1 and rescuer M2 overlap, so rescuer M2 is omitted.

(5) Attitude Change Process FIG. 11 is a process explanatory diagram showing the attitude change process of the rescue method according to the present embodiment. Next, as shown in FIG. 11, in the rescue method according to the present embodiment, a posture changing step is performed in which the thighs of the rescuer M1 are lifted to change the posture to a sitting posture.

This step is performed by the rescuer M2 using the saddle 6 and the second pulley system 7 provided in the rescue chamber 3 . Specifically, the saddle 6 is applied to the back of the thigh of the rescuer M1, and the saddle 6 is lifted by the second pulley system 7 to change the rescuer M1 to a seated posture (see FIG. 11). However, in FIG. 11 as well, the rescuer M2 is omitted because the rescuer M1 and the rescuer M2 overlap.

In this step, the rescuer M2 pulls one end of the rope 72 of the second pulley system 7 to lift the thigh of the rescuer M1 with the saddle 6 (see FIG. 5, etc.). At this time, as described above, since the second pulley system 7 is a quadruple force pulley system, the thighs of the person requiring rescue M1 can be easily lifted up with one fourth of the actual force.

The reason why the person M1 requiring rescue is in the seated posture is to enable the hatch 32 to be easily closed in the narrow relief chamber 3 .

(6) Rescue Chamber Lifting Process FIG. 12 is a process explanatory view showing the rescue chamber lifting process of the rescue method according to the present embodiment. Next, in the rescue method according to the present embodiment, the rescue chamber lifting step is performed to lift the rescue chamber 3 from the high pressure work chamber Wr to the ground while maintaining the same high pressure as that in the high pressure work chamber Wr.

In this process, the inside of the material shaft Ms is lifted using the lifting facility Lf (see FIG. 1), and the relief chamber 3 is lifted from the high-pressure work room Wr to the ground. At this time, the inside of the relief chamber 3 is maintained at a high pressure equivalent to that of the high pressure work chamber Wr, as described above. Therefore, even if the lifting facility Lf is rapidly pulled up to the ground, there is no risk of decompression sickness. In addition, as shown in FIG. 12, the rescuer M2 sits on the hatch 32 in the manner of sitting at the gym and waits.

(7) Relief Chamber Overturning Process FIG. 13 is a process explanatory view showing the relieving chamber overturning process of the rescue method according to the present embodiment. . Next, as shown in FIG. 13, in the rescue method according to the present embodiment, a rescue chamber overturning step is performed in which the rescue chamber 3 lifted up to the ground in the previous step is turned sideways by 90 degrees and overturned.

In this process, in addition to the permanent lifting facility Lf (see Fig. 1) such as a tower crane, mobile cranes (rotary auxiliary cranes) such as crawler cranes and rough terrain cranes are used, and two cranes are used in turn. Then, the rescue chamber 3 is turned sideways by 90 degrees and placed horizontally on the side of the hospital lock 2 (see FIGS. 1, 14, etc.).

At this time, the hook of the mobile crane, which is a rotary auxiliary crane, is connected to the hook 33 (see FIG. 3) provided at the bottom of the rescue chamber 3 . Also, for height adjustment, the relief chamber 3 is preferably placed on a slide frame S1 (see FIG. 14) equipped with a spreader and a jack. In this way, the relief chamber 3 is provided with hooking members at two locations, the shackle mounting portion 31a on the top and the hook 33 on the bottom. Therefore, it is easy to lift the chamber body 30 by two lifting facilities, rotate the chamber body 30 by 90 degrees, lay it on its side, and place it horizontally on the side of the hospital lock 2 in a short time.

The person M1 requiring rescue is fixed to the chamber stretcher 8 with a belt, and is safe even when the rescue chamber 3 is overturned in this step. However, the rescuer M2 must hold on to a fixed object such as a handrail in the rescue chamber 3.

(8) Phoslock Connection Step FIG. 14 is a process explanatory diagram showing the phoslock connection step of the rescue method according to the present embodiment. Next, as shown in FIG. 14, in the rescue method according to the present embodiment, a hoslock connection step is performed to connect the rescue chamber 3 horizontally placed beside the hospital lock 2 in the previous step to the hospital lock 2.

In this step, the rescue chamber 3 is slid to the hospital lock 2 side using the slide stand S1 to connect the rescue chamber 3 to the hospital lock 2 . Further, as shown in FIG. 2, a plurality of valves V1 to V15, V0-1 to V0-3 are connected to the compressor 23, the air cleaner 24, the automatic pressure reducing device 25, the pressure equalization adjustment piping unit 26, etc. A rescue facility 1 for the pneumatic caisson construction method is constructed.

(9) Rescue Person Transfer Process FIG. 15(a) is a process explanatory view showing the rescue person transfer process of the rescue method according to the present embodiment, and FIG. It is a figure which shows the state which separated. Next, as shown in FIG. 15(a), in the rescue method according to the present embodiment, a person-to-be-rescued transfer step of transferring the person-to-be-rescued M1 to the hospital lock 2 connected in the previous step is performed.

In this step, the door and hatch 32 on the side of the hospital lock 2 are opened, the stretcher rail R1 is installed from the side of the hospital lock 2, and the person requiring rescue M1 is pulled in together with the chamber stretcher 8 and transferred.

FIG. 16 is a photograph showing a state in which the stretcher rail R1 is installed and the person in need of rescue M1 is pulled in together with the chamber stretcher 8. (a) shows before the pull-in, and (b) shows the inside of the pull-in. Specifically, as shown in FIGS. 15(a) and 16(a), a new rescuer M3 inserts the stretcher rail R1 from the hospital lock 2 side into the connecting portion between the hospital lock 2 and the relief chamber 3. Install. Then, a rope is connected to the chamber stretcher 8 using a carabiner or the like, and as shown in FIG. 16(b), the rescuer M3 pulls the rope from the hospital lock 2 side, A rescuer M2 pushes out the chamber stretcher 8 from the rescue chamber 3 side. As a result, the chamber stretcher 8 is slid on the stretcher rail R1, and the person requiring rescue M1 is pulled into the hospital lock 2 together with the chamber stretcher 8.

Then, as shown in FIG. 15(b), the rescuer M1 is transported to the main room 21 of the hospital lock 2 and receives treatment by a doctor, etc., and the rescuer M2 and the rescuer M3 are transferred to the hospital lock 2. and wait until the pressure is reduced to atmospheric pressure.

After that, as shown in FIG. 15(b), the rescue chamber 3 is separated from the hospital lock 2, and the rescue method according to this embodiment is completed.

According to the rescue facility 1 for the pneumatic caisson construction method and the rescue method according to the embodiment of the present invention described above, the first pulley system 5, which is a quadruple pulley system, is used to move the rescuer M1 to the rescue chamber 3. Pull up. Therefore, the person requiring rescue M1 can be easily lifted into the rescue chamber 3 with a force that is one-fourth of the actual force.

In addition, according to the rescue facility 1 and the rescue method, the rescue chamber 3 is raised in the material shaft Ms to the ground using the lifting facility Lf (see FIG. 1) while maintaining the same high pressure as the high pressure work room Wr. can be lifted. Therefore, quick rescue can be performed without fear of decompression sickness (hidden sickness), and even the rescuer M1 who has lost consciousness and cannot move at all can be transported and rescued easily, safely and quickly. can.

In addition, according to the rescue facility 1 and the rescue method, the stretcher 4 made of flexible resin can cover and wrap the lower half or more of the whole body of the rescuer M1, and the rescuer M1 can be placed on the rubble. Even if it is dragged, it is possible to eliminate the risk of injury to the person M1 requiring rescue. Therefore, in this respect as well, rescue can be performed safely and quickly.

In addition, according to the rescue facility 1 and the rescue method, it is easy and short to lift the chamber body 30 by two lifting facilities, rotate the chamber body 30 by 90 degrees, lay it sideways, and place it horizontally on the side of the hospital lock 2. can be done in time. Therefore, in this respect as well, rescue can be performed safely and quickly.

The pneumatic caisson rescue facility 1 and the rescue method according to the embodiments of the present invention have been described in detail above. It is nothing more than an indication of Therefore, the technical scope of the present invention should not be construed to be limited by these.

1: Rescue facility (rescue facility for pneumatic caisson method)
2: Hospital Rock (Hoslock)
20: Lock body 21: Main chamber 22: Sub chamber 23: Compressor 24: Air purifier 25: Automatic decompression device 26: Pressure equalization adjustment piping unit 27: Adapter spool 3: Relief chamber 30: Chamber body 30a: Opening 31: Suspension member 31a: shackle mounting portion (hanging member)
32: Hatch 33: Hook (hanging member)
4: Stretcher 40: Stretcher body 41: Belt 42: Bag 5: First pulley system (pulley system)
50: Pulley 51: Double pulley 52: Rope 53: Locking mechanism 54: Drawstring 6: Saddle 7: Second pulley system (pulley system)
70: pulley 71: double pulley 72: rope 73: locking mechanism 74: drawstring 8: chamber stretcher (stretcher)
9: Reinforcement gangway (garbage gangway)
S1: Slide stand R1: Rail for stretcher M1: Person requiring rescue (worker)
M2, M3: rescuers (workers)
C1: Caisson Wr: High-pressure work chamber Ms: Material shaft Mr: Material lock Df: Earth discharge equipment Ca: Carrier Lf: Lifting facility V1 to V15: Valve

Claims (8)

A pneumatic caisson construction method rescue facility for rescuing a rescuer in the pneumatic caisson construction method,
A housing-shaped relief chamber with a hatch formed at the bottom, connected to a lifting facility, and having a vertical direction as a longitudinal direction that can be freely moved up and down in a material shaft;
a first pulley system having a fixed pulley and a movable pulley connected to the inner upper portion of the rescue chamber;
and a stretcher that can be lifted by the first pulley system ,
A pneumatic caisson characterized in that the first aid chamber is provided with locking members that can be lifted by lifting facilities on both the upper and lower sides, and is configured to be able to be placed horizontally by two lifting facilities. Rescue facilities for construction methods. a second pulley system having a fixed pulley and a movable pulley connected to the inner upper portion of the rescue chamber;
and a saddle that can be lifted by the second pulley system. The news machine according to claim 1 or 2, wherein the stretcher has a plurality of belts for fixing the person requiring rescue and is a stretcher made of resin that covers one half or more of the whole body of the person requiring rescue. Rescue facility for matic caisson construction method. The pneumatic caisson construction method according to any one of claims 1 to 3, wherein the rescue chamber is configured to be connectable to a hospital lock installed on the ground and capable of treatment while maintaining high pressure. rescue facility. The pneumatic caisson rescue facility according to any one of claims 1 to 4 , wherein a stretcher capable of fixing a person requiring rescue is detachably fixed to the inner surface of the rescue chamber. The rescue facility for pneumatic caisson construction according to any one of claims 1 to 5 , further comprising a gangway that can hang down from the hatch. A rescue method for rescuing a person requiring rescue using the pneumatic caisson rescue facility according to any one of claims 1 to 6 ,
an in-chamber lifting step of lifting the rescuer-requiring person into the rescue chamber using the first pulley system;
a relief chamber lifting step of lifting the relief chamber to the ground while maintaining a high pressure equivalent to that of the high pressure work chamber ;
a host lock connecting step of connecting the rescue chamber with the hospital lock;
A rescue method, comprising: performing a person-requiring transport step of transporting a person requiring rescue together with the stretcher to the hospital lock connected in the host-lock connecting step. A rescue method for rescuing a person requiring rescue using the rescue facility for the pneumatic caisson construction method according to claim 2,
8. The rescue method according to claim 7 , wherein the second pulley system and the saddle are used to perform a posture change step of lifting the thighs of the person requiring rescue and changing the posture to a sitting posture.

Images