CN112093664A - Cabin entering method and cabin exiting method for ship block minimally invasive equipment - Google Patents
Cabin entering method and cabin exiting method for ship block minimally invasive equipment Download PDFInfo
- Publication number
- CN112093664A CN112093664A CN202010699458.6A CN202010699458A CN112093664A CN 112093664 A CN112093664 A CN 112093664A CN 202010699458 A CN202010699458 A CN 202010699458A CN 112093664 A CN112093664 A CN 112093664A
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- sling
- hoisted
- hoisting
- cabin
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 235000015278 beef Nutrition 0.000 claims description 2
- 239000003760 tallow Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/10—Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a ship block minimally invasive device entry method and an exit method, wherein the exit method comprises the following steps: step one, arranging hoisting round holes from a first hoisting round hole to an Nth hoisting round hole at a specified position on a deck surface; step two, installing semi-circle steel on the edge of the hoisting circular hole; step three, connecting a lifting hook of the first crane with a first sling, and hoisting the equipment to be hoisted to one side of the cabin by the first sling; step four, a lifting hook of the second crane is connected with a second sling, and the second sling enters the cabin through the first hoisting circular hole and is connected with equipment to be hoisted; and step five, alternately working by the first crane and the second crane to move the equipment to be hoisted, and repeating the step six until the equipment to be hoisted moves to the position right above the Nth hoisting round hole, so as to hoist the equipment to be hoisted in place. The equipment cabin entering and exiting method meets the requirement that the equipment enters and exits the cabin from the side surface of the cabin, and the equipment is hoisted in place in a relay advancing mode, so that the workload of entering and exiting the equipment is obviously reduced.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a ship block minimally invasive device entry method and a ship block exit method.
Background
At present, China becomes a world shipbuilding big country, and various ships can select an advanced production mode of block construction to improve the construction speed. However, during the construction process, the equipment is required to be taken out of the cabin for repair due to various reasons, such as that the equipment is required to be taken in the cabin due to late arrival. When equipment enters and exits the cabin, if the equipment is hoisted in and out in the vertical direction of the large opening of the conventional structure, the structure of a ship body can be greatly damaged, the workload of assembly and welding is huge, the arrangement of deck machinery can be influenced sometimes, and the hoisting in and out in the vertical direction of the large opening of the structure is often difficult to carry out.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a ship block minimally invasive equipment entry method, which can reduce the size of an opening on a deck, reduce the damage to a hull structure and simultaneously reduce the workload of equipment entry and exit. In addition, the invention also provides a ship block minimally invasive type equipment cabin outlet method.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect of the invention, a ship block minimally invasive device entry method comprises the following steps:
step one, arranging a plurality of hoisting round holes at specified positions on a deck surface, wherein circle center connecting lines of the plurality of hoisting round holes are superposed with a central line of a travelling track of equipment to be hoisted, and defining hoisting round holes from one side to the other side of a cabin as a first hoisting round hole to an Nth hoisting round hole, wherein the Nth hoisting round hole is positioned right above the installation position of the equipment to be hoisted;
secondly, installing semi-circular steel at the edge of the hoisting round hole, wherein the arc surface of the semi-circular steel faces to the circle center of the hoisting round hole, and the semi-circular steel and the edge of the hoisting round hole are fixed in a spot welding manner;
step three, a lifting hook of the first crane is connected with a first sling, the first sling is arranged outside the cabin and used for lifting equipment to be lifted to one side of the cabin, and two ends of the bottom of the equipment to be lifted are connected with pull ropes;
step four, a lifting hook of the second crane is connected with a second sling, and the second sling enters the cabin through the first hoisting circular hole and is connected with equipment to be hoisted;
commanding a first crane to control a first sling to move downwards, commanding a second crane to control a second sling to move upwards, pulling a pull rope to finely adjust the direction until equipment to be hoisted moves to the position under a first hoisting round hole, removing the connection between the first sling and the equipment to be hoisted, commanding the first crane to move, extending the first sling out of a cabin from the second hoisting round hole and connecting the first sling with the equipment to be hoisted, commanding the second crane to control the second sling to move downwards, commanding the first crane to control the first sling to move upwards, pulling the pull rope to finely adjust the direction until the equipment to be hoisted moves to the position under the second hoisting round hole, removing the connection between the second sling and the equipment to be hoisted, commanding the second crane to move, and extending the second sling out of the cabin from a third hoisting round hole and connecting the equipment to be hoisted;
and step six, repeating the step five until the equipment to be hoisted moves right above the Nth hoisting round hole, dismantling the sling and the pull rope which are not stressed right above, commanding the crane to descend the sling, and hoisting the equipment to be hoisted in place.
As a preferable technical scheme, in the first step, the diameter of each hoisting circular hole is 300mm, and the distance between the centers of every two adjacent hoisting circular holes is 2-2.5 m.
In the second step, the surface of the semicircular steel is coated with beef tallow.
As a preferred technical scheme, in the third step, the sling comprises a large steel wire rope, a small steel wire rope and a shackle, one end of the large steel wire rope is connected with the lifting hook, the other end of the large steel wire rope is connected with four small steel wire ropes, the end of each small steel wire rope is connected with a shackle, and the shackle is connected with a lifting lug on equipment to be lifted.
The invention provides a ship block minimally invasive device cabin-exiting method in a second aspect, which comprises the following steps:
step one, arranging a plurality of hoisting round holes at specified positions on a deck surface, wherein circle center connecting lines of the plurality of hoisting round holes are superposed with a central line of a travelling track of equipment to be hoisted, and defining hoisting round holes from one side to the other side of a cabin as a first hoisting round hole to an Nth hoisting round hole, wherein the Nth hoisting round hole is positioned right above the installation position of the equipment to be hoisted;
secondly, installing semi-circular steel at the edge of the hoisting round hole, wherein the arc surface of the semi-circular steel faces to the circle center of the hoisting round hole, and the semi-circular steel and the edge of the hoisting round hole are fixed in a spot welding manner;
step three, a lifting hook of the first crane is connected with a first sling, the first sling enters the cabin from the Nth hoisting round hole to hoist the equipment to be hoisted, and two ends of the bottom of the equipment to be hoisted are connected with pull ropes;
step four, a lifting hook of the second crane is connected with a second sling, and the second sling enters the cabin through an N-1 hoisting round hole and is connected with equipment to be hoisted;
commanding a first crane to control a first sling to move downwards, commanding a second crane to control a second sling to move upwards, pulling a stay rope to finely adjust the direction until equipment to be hoisted moves to the position right below an N-1 hoisting round hole, removing the connection between the first sling and the equipment to be hoisted, commanding the first crane to move, extending the first sling out of a cabin from an N-2 hoisting round hole and connecting the first sling to the equipment to be hoisted, commanding the second crane to control the second sling to move downwards, controlling the first sling to move upwards by the first crane, pulling the stay rope to finely adjust the direction until the equipment to be hoisted moves to the position right below an N-2 hoisting round hole, removing the connection between the second sling and the equipment to be hoisted, commanding the second crane to move, and extending the second sling out of the cabin from an N-3 hoisting round hole and connecting the equipment to be hoisted;
and step six, repeating the step five until the equipment to be hoisted moves to the outside of the cabin, dismantling the sling and the pull rope which are not stressed right above, moving the crane, and transporting the hoisting equipment to a specified position.
Compared with the prior art, the invention has the beneficial effects that: the equipment cabin entering and exiting method can meet the requirement that equipment enters and exits the cabin from the side face of the cabin during the construction of the ship block, the sling of a large crane enters the interior of a ship body by arranging a plurality of small round holes on the deck surface, and the equipment is hoisted in place by a relay advancing mode in cooperation with the lifting lugs on the equipment, so that the operation mode is simple and reliable, and the workload of the equipment entering and exiting the cabin is obviously reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of an installation structure of the semicircular steel according to the present invention.
FIG. 2 is an initial state diagram of the vessel block minimally invasive device entering the cabin.
Fig. 3 is a first state diagram of the vessel block minimally invasive device entering the cabin.
Fig. 4 is a second state diagram of the vessel block minimally invasive device entering the cabin.
FIG. 5 is a third state diagram of the vessel block minimally invasive device entering the cabin.
FIG. 6 is a final state diagram of the vessel block minimally invasive device entering the cabin.
Wherein the reference numerals are specified as follows: the lifting device comprises a sling 1, semicircular steel 2, a lifting hook 3, a large steel wire rope 4, a small steel wire rope 5, a shackle 6, equipment to be lifted 7, a pull rope 8 and a lifting round hole 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in fig. 1 to 6, the present embodiment provides a vessel block minimally invasive device entry method, including the following steps:
step one, a plurality of hoisting round holes 9 are formed in the appointed position on the deck surface, circle center connecting lines of the plurality of hoisting round holes 9 coincide with the center line of the advancing track of the equipment 7 to be hoisted, the hoisting round holes 9 from one side to the other side of the cabin are defined as a first hoisting round hole to an Nth hoisting round hole, and the Nth hoisting round hole is positioned right above the installation position of the equipment 7 to be hoisted. The diameter of each hoisting round hole 9 is 300mm, and the distance between the centers of every two adjacent hoisting round holes 9 is 2-2.5 m.
And step two, installing the semicircular steel 2 at the edge of the hoisting round hole 9, wherein the arc surface of the semicircular steel 2 faces the circle center of the hoisting round hole 9, fixing the semicircular steel 2 and the edge of the hoisting round hole 9 by spot welding, and coating butter on the surface of the semicircular steel 2 so as to reduce the friction between the steel wire rope and the deck.
And step three, the lifting hook 3 of the first crane is connected with a first sling, the first sling lifts the equipment to be hoisted 7 to one side of the cabin outside the cabin, and two ends of the bottom of the equipment to be hoisted 7 are connected with pull ropes 8. Hoist cable 1 includes big wire rope 4, little wire rope 5 and shackle 6, and lifting hook 3 is connected to the one end of big wire rope 4, and four little wire rope 5 are connected to the other end of big wire rope 4, and every little wire rope 5's tip all is connected with shackle 6, and shackle 6 connects the lug on treating lifting device 7.
And step four, the lifting hook 3 of the second crane is connected with a second sling, and the second sling enters the cabin through the first hoisting round hole and is connected with equipment to be hoisted 7.
And fifthly, commanding the first crane to control the first sling to move downwards, commanding the second crane to control the second sling to move upwards, pulling the pull rope 8 to finely adjust the direction until the equipment 7 to be hoisted moves to the position under the first hoisting round hole, removing the connection between the first sling and the equipment 7 to be hoisted, commanding the first crane to move, extending the first sling out of the cabin from the second hoisting round hole 9 and connecting the first sling to the equipment 7 to be hoisted, commanding the second crane to control the second sling to move downwards, controlling the first sling to move upwards by the first crane, pulling the pull rope 8 to finely adjust the direction until the equipment 7 to be hoisted moves to the position under the second hoisting round hole, removing the connection between the second sling and the equipment 7 to be hoisted, commanding the second crane to move, and extending the second sling out of the cabin from the third hoisting round hole 9 and connecting the equipment 7 to be hoist.
And step six, repeating the step five until the equipment 7 to be hoisted moves right above the Nth hoisting round hole, dismantling the sling 1 and the pull rope 8 which are not stressed right above, commanding the crane to descend the sling 1, and hoisting the equipment 7 to be hoisted in place.
The number of hoisting round holes 9 is determined according to actual conditions, when the mounting position of the equipment to be hoisted 7 is close to the opening at the side part of the cabin, the hoisting round holes 9 can be only two, and when the distance is far, any number of hoisting round holes can be set as required.
Example 2
The embodiment provides a ship block minimally invasive device cabin-exiting method, which is contrary to the hoisting process of the embodiment 1, and comprises the following steps:
step one, a plurality of hoisting round holes 9 are formed in the appointed position on the deck surface, circle center connecting lines of the plurality of hoisting round holes 9 coincide with the center line of the advancing track of the equipment 7 to be hoisted, the hoisting round holes 9 from one side to the other side of the cabin are defined as a first hoisting round hole to an Nth hoisting round hole, and the Nth hoisting round hole is positioned right above the installation position of the equipment 7 to be hoisted.
Step two, installing the semicircular steel 2 at the edge of the hoisting round hole 9, enabling the arc surface of the semicircular steel 2 to face the circle center of the hoisting round hole 9, and fixing the semicircular steel 2 and the edge of the hoisting round hole 9 through spot welding.
Step three, the lifting hook 3 of the first crane is connected with a first sling, the first sling enters the cabin from the Nth hoisting round hole and hoists the equipment to be hoisted 7, and the two ends of the bottom of the equipment to be hoisted 7 are connected with pull ropes 8.
And step four, connecting a lifting hook 3 of the second crane with a second sling, and enabling the second sling to enter the cabin through the N-1 hoisting round hole and be connected with equipment to be hoisted 7.
And fifthly, commanding the first crane to control the first sling to move downwards, commanding the second crane to control the second sling to move upwards, pulling the pull rope 8 to finely adjust the direction until the equipment 7 to be hoisted moves to the position under the N-1 hoisting round hole, removing the connection between the first sling and the equipment 7 to be hoisted, commanding the first crane to move, extending the first sling out of the cabin from the N-2 hoisting round hole and connecting the first sling to the equipment 7 to be hoisted, commanding the second crane to control the second sling to move downwards, commanding the first crane to control the first sling to move upwards, pulling the pull rope 8 to finely adjust the direction until the equipment 7 to be hoisted moves to the position under the N-2 hoisting round hole, removing the connection between the second sling and the equipment 7 to be hoisted, commanding the second crane to move, and extending the second sling out of the cabin from the N-3 hoisting round hole and connecting the equipment 7 to be.
And step six, repeating the step five until the equipment to be hoisted 7 moves to the outside of the cabin, dismantling the sling 1 and the pull rope 8 which are not stressed right above, moving the crane, and transporting the hoisting equipment to a specified position.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (5)
1. A ship block minimally invasive device cabin entering method is characterized by comprising the following steps:
step one, arranging a plurality of hoisting round holes at specified positions on a deck surface, wherein circle center connecting lines of the plurality of hoisting round holes are superposed with a central line of a travelling track of equipment to be hoisted, and defining hoisting round holes from one side to the other side of a cabin as a first hoisting round hole to an Nth hoisting round hole, wherein the Nth hoisting round hole is positioned right above the installation position of the equipment to be hoisted;
secondly, installing semi-circular steel at the edge of the hoisting round hole, wherein the arc surface of the semi-circular steel faces to the circle center of the hoisting round hole, and the semi-circular steel and the edge of the hoisting round hole are fixed in a spot welding manner;
step three, a lifting hook of the first crane is connected with a first sling, the first sling is arranged outside the cabin and used for lifting equipment to be lifted to one side of the cabin, and two ends of the bottom of the equipment to be lifted are connected with pull ropes;
step four, a lifting hook of the second crane is connected with a second sling, and the second sling enters the cabin through the first hoisting circular hole and is connected with equipment to be hoisted;
commanding a first crane to control a first sling to move downwards, commanding a second crane to control a second sling to move upwards, pulling a pull rope to finely adjust the direction until equipment to be hoisted moves to the position under a first hoisting round hole, removing the connection between the first sling and the equipment to be hoisted, commanding the first crane to move, extending the first sling out of a cabin from the second hoisting round hole and connecting the first sling with the equipment to be hoisted, commanding the second crane to control the second sling to move downwards, commanding the first crane to control the first sling to move upwards, pulling the pull rope to finely adjust the direction until the equipment to be hoisted moves to the position under the second hoisting round hole, removing the connection between the second sling and the equipment to be hoisted, commanding the second crane to move, and extending the second sling out of the cabin from a third hoisting round hole and connecting the equipment to be hoisted;
and step six, repeating the step five until the equipment to be hoisted moves right above the Nth hoisting round hole, dismantling the sling and the pull rope which are not stressed right above, commanding the crane to descend the sling, and hoisting the equipment to be hoisted in place.
2. The vessel block minimally invasive device entry method according to claim 1, wherein in the first step, the diameter of each hoisting circular hole is 300mm, and the distance between centers of every two adjacent hoisting circular holes is 2-2.5 m.
3. The method for entering the cabin of the minimally invasive equipment in the ship block as claimed in claim 1, wherein in the second step, the surface of the semicircular steel is coated with beef tallow.
4. The vessel block minimally invasive device entry method according to claim 1, wherein in the third step, the sling comprises a large steel wire rope, a small steel wire rope and a shackle, one end of the large steel wire rope is connected with the lifting hook, the other end of the large steel wire rope is connected with four small steel wire ropes, the end of each small steel wire rope is connected with the shackle, and the shackle is connected with a lifting lug on the device to be lifted.
5. A ship block minimally invasive device cabin-out method is characterized by comprising the following steps:
step one, arranging a plurality of hoisting round holes at specified positions on a deck surface, wherein circle center connecting lines of the plurality of hoisting round holes are superposed with a central line of a travelling track of equipment to be hoisted, and defining hoisting round holes from one side to the other side of a cabin as a first hoisting round hole to an Nth hoisting round hole, wherein the Nth hoisting round hole is positioned right above the installation position of the equipment to be hoisted;
secondly, installing semi-circular steel at the edge of the hoisting round hole, wherein the arc surface of the semi-circular steel faces to the circle center of the hoisting round hole, and the semi-circular steel and the edge of the hoisting round hole are fixed in a spot welding manner;
step three, a lifting hook of the first crane is connected with a first sling, the first sling enters the cabin from the Nth hoisting round hole to hoist the equipment to be hoisted, and two ends of the bottom of the equipment to be hoisted are connected with pull ropes;
step four, a lifting hook of the second crane is connected with a second sling, and the second sling enters the cabin through an N-1 hoisting round hole and is connected with equipment to be hoisted;
commanding a first crane to control a first sling to move downwards, commanding a second crane to control a second sling to move upwards, pulling a stay rope to finely adjust the direction until equipment to be hoisted moves to the position right below an N-1 hoisting round hole, removing the connection between the first sling and the equipment to be hoisted, commanding the first crane to move, extending the first sling out of a cabin from an N-2 hoisting round hole and connecting the first sling to the equipment to be hoisted, commanding the second crane to control the second sling to move downwards, controlling the first sling to move upwards by the first crane, pulling the stay rope to finely adjust the direction until the equipment to be hoisted moves to the position right below an N-2 hoisting round hole, removing the connection between the second sling and the equipment to be hoisted, commanding the second crane to move, and extending the second sling out of the cabin from an N-3 hoisting round hole and connecting the equipment to be hoisted;
and step six, repeating the step five until the equipment to be hoisted moves to the outside of the cabin, dismantling the sling and the pull rope which are not stressed right above, moving the crane, and transporting the hoisting equipment to a specified position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699458.6A CN112093664A (en) | 2020-07-20 | 2020-07-20 | Cabin entering method and cabin exiting method for ship block minimally invasive equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699458.6A CN112093664A (en) | 2020-07-20 | 2020-07-20 | Cabin entering method and cabin exiting method for ship block minimally invasive equipment |
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| CN112093664A true CN112093664A (en) | 2020-12-18 |
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| CN202010699458.6A Pending CN112093664A (en) | 2020-07-20 | 2020-07-20 | Cabin entering method and cabin exiting method for ship block minimally invasive equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460851B1 (en) * | 1990-06-05 | 1996-02-07 | Metro Machine Corporation | Vessel hull and construction method |
| US20150291267A1 (en) * | 2007-12-17 | 2015-10-15 | Jon Khachaturian | Marine Lifting Apparatus |
| CN108163138A (en) * | 2017-12-25 | 2018-06-15 | 沪东中华造船(集团)有限公司 | It is a kind of to go out cabin method for naval vessel major engine overhaul |
| CN108909938A (en) * | 2018-06-28 | 2018-11-30 | 广船国际有限公司 | A kind of sectional construction method |
| CN110963396A (en) * | 2019-11-15 | 2020-04-07 | 上海江南长兴造船有限责任公司 | Hoisting method of curve type total section |
| CN111332940A (en) * | 2020-03-06 | 2020-06-26 | 招商局邮轮制造有限公司 | Carrying and hoisting process for building block on cruise ship |
-
2020
- 2020-07-20 CN CN202010699458.6A patent/CN112093664A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460851B1 (en) * | 1990-06-05 | 1996-02-07 | Metro Machine Corporation | Vessel hull and construction method |
| US20150291267A1 (en) * | 2007-12-17 | 2015-10-15 | Jon Khachaturian | Marine Lifting Apparatus |
| CN108163138A (en) * | 2017-12-25 | 2018-06-15 | 沪东中华造船(集团)有限公司 | It is a kind of to go out cabin method for naval vessel major engine overhaul |
| CN108909938A (en) * | 2018-06-28 | 2018-11-30 | 广船国际有限公司 | A kind of sectional construction method |
| CN110963396A (en) * | 2019-11-15 | 2020-04-07 | 上海江南长兴造船有限责任公司 | Hoisting method of curve type total section |
| CN111332940A (en) * | 2020-03-06 | 2020-06-26 | 招商局邮轮制造有限公司 | Carrying and hoisting process for building block on cruise ship |
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Application publication date: 20201218 |
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