CN107914841B - Dock gate underwater positioning and mounting device and method - Google Patents
Dock gate underwater positioning and mounting device and method Download PDFInfo
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- CN107914841B CN107914841B CN201711098170.8A CN201711098170A CN107914841B CN 107914841 B CN107914841 B CN 107914841B CN 201711098170 A CN201711098170 A CN 201711098170A CN 107914841 B CN107914841 B CN 107914841B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C1/00—Dry-docking of vessels or flying-boats
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Abstract
The invention relates to a dock gate underwater positioning and mounting device, which is characterized in that: the hydraulic pushing device comprises a dock gate (1), a dock gate guide groove (2), a hydraulic pushing device (3), a dock sill (4) and a dock sill guide groove (5). The dock gate (1) can be a hanging dock gate or a movable dock gate. The dock gate guide groove (2) is arranged on the dock gate (1), and the hydraulic pushing device (3) is arranged in the dock gate guide groove (2). The dock gate guide groove (2) and the dock sill guide groove (5) are both U-shaped structures, and the dock sill guide groove (5) is slightly larger than the dock gate guide groove (2). The hydraulic pushing device (3) is arranged in the dock gate guide groove (2) and can guide and push. The underwater positioning and installing device for the dock gate, which meets the requirements, has the advantages of simple device and simple and convenient operation method, plays a good guarantee role in sealing three sections of dock gates, and meets the requirements for underwater installation of the dock gate.
Description
Technical Field
The invention belongs to the technical field of ships, and particularly relates to a dock gate underwater positioning and mounting device and a dock gate underwater positioning and mounting method.
Background
The dock gate of the Yangjiang ship group Xinfu shipyard is different from the dock gates of other shipyards, and is a novel three-section combined dock gate, and each section can be directly lifted and installed by a large gantry crane above a dock.
Because the dock gate is divided into three sections, the three sections of dock gate can meet the watertight requirement after being combined, and the installation accuracy between the three sections of dock gate is high, otherwise water can leak. When the ship is arranged after being undocked, the dock gate structure and all the sealing and positioning devices are arranged under water, and cannot be seen by eyes and instruments.
The three-section combined dock gate can achieve good watertight effect, not only is a good watertight device needed, but also the requirement of the installation precision of the underwater dock gate is met under the condition that the dock gate cannot be seen and cannot be touched.
Disclosure of Invention
The invention aims to provide a dock gate underwater positioning and installing device which meets the requirements, and the device is simple in device and operation method, has a good sealing effect on sealing of three sections of dock gates, and meets the requirements of underwater dock gate installation.
The second purpose of the invention is to provide a dock gate underwater positioning and installing method.
The invention solves the problems by adopting the following technical scheme: the underwater positioning and mounting device for the dock gate comprises the dock gate, a dock gate guide groove, a hydraulic pushing device, a dock sill guide groove and a positioning mark.
The dock gate comprises a hanging dock gate and a movable dock gate.
The dock gate guide groove is arranged on the dock gate, and the hydraulic pushing device is arranged in the dock gate guide groove.
The dock gate guide groove and the dock sill guide groove are both U-shaped structures, and the dock sill guide groove is slightly larger than the dock gate guide groove.
The hydraulic pushing device is arranged in the dock gate guide groove, and can guide and push.
And after the construction of the dock head and the dock sill embedded part is finished, the construction of the three-section dock gate main body steel structure is finished, and the dock gate guide groove and the dock sill guide groove are put into the embedded guide groove embedded part in advance.
The underwater positioning and installing method of the dock gate is characterized in that in the dock construction stage, the construction of the dock head and the dock sill embedded part is finished, the construction of the three-section dock gate main body steel structure is finished, the dock gate guide groove and the dock sill guide groove are pre-embedded, before the water blocking dykes and dams of cofferdam construction are not disassembled, the movable dock gate and the hanging-off dock gate are hung to the accurate installing positions by using a gantry crane and a special rigging, the guide grooves on the three-section dock gate are pre-installed, the installation and welding are firm after the hanging-off, and the installation is carried out in a trial hanging manner;
after the positioning is accurate, marking the ground on the two sides of the dock, the three sections of dock gates, the stop positions of the upper and lower crane trolleys of the gantry crane and the stop positions of the gantry crane trolleys; then lifting a dock gate, welding a guide groove on the dock gate, and then performing a simulated underwater lifting test;
the method comprises the steps of setting down a movable dock gate in the middle and a hanging-off dock gate on two sides according to marked positions in sequence by means of marking, and performing primary positioning by using a dock gate guiding groove and a dock gate guiding groove on each dock gate, wherein a dock gate guiding groove device is clamped in the dock gate guiding groove; then, starting a hydraulic pushing device in the movable dock gate, pushing the middle movable dock gate to the installation position for accurate positioning; the hanging dock gates on two sides are also positioned by adopting the same method; after all of them are in place, each marker is checked again.
After the dock gate enters a normal use state, a general ship is undocked, and any one of the two sides is lifted off the dock gate, so that the dock gate can be initially positioned by only referring to the marks on the ground of the dock gate and the movable dock gate during installation, and then the dock gate is accurately installed in place by means of the underwater positioning and installation device.
If the undocking ship is too large, the three sections of dock gates are all opened and shifted to prevent collision with the middle movable dock gate;
after the ship is undocked, only the gantry crane and the upper and lower hoisting trolleys on the gantry crane are hoisted to a dock gate, the gantry crane is operated to a marking position, the middle movable dock gate or the hoisting dock gates on two sides are slowly put down, after the ship reaches the vicinity of the predicted installation position, the dock gate is checked and checked by a total station, after the ship meets the requirement of the accuracy of the installation position, the dock gate is put down, and falls into an installation positioning groove by virtue of the self weight and a guiding positioning device, so that preliminary reset is completed; the movable dock gate is tightly propped and completely reset by means of a hydraulic pushing device arranged in the dock gate, and the suspended dock gates on two sides can be automatically tightly stuck and completely reset by means of water pressure after water pressure difference is formed inside and outside the dock gate when water in the dock is pumped out due to small gap between the suspended dock gate and the movable dock gate in the middle.
Compared with the prior art, the invention has the advantages that:
the device is simple, the operation method is simple and convenient, the underwater accurate positioning of the three-section dock gate is ensured, the sealing is good, and the requirements of underwater installation and sealing of the combined dock gate are met.
Drawings
Fig. 1 is a schematic view of a dock gate underwater positioning and installing device according to the present invention;
fig. 2 is a schematic view of a dock sill guide slot arrangement;
fig. 3 is a schematic view of a dock gate guide slot and hydraulic thrustor arrangement;
fig. 4 is an enlarged view of a portion a of fig. 3;
fig. 5 is an enlarged view of a portion B of fig. 3.
Wherein: the system comprises a 1-dock gate, a 2-dock gate guide slot, a 3-hydraulic pushing device, a 4-dock gate, a 5-dock gate guide slot, a 6-movable dock gate and a 7-suspended dock gate.
Description of the embodiments
The invention is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1-5, a dock gate underwater positioning and installing device comprises a dock gate 1, a dock gate guide slot 2, a hydraulic pushing device 3, a dock sill 4 and a dock sill guide slot 5; the dock gate guide groove 2 is arranged on the dock gate 1, and the hydraulic pushing device 3 is arranged in the dock sill guide groove 5. The dock gate guide groove 2 and the dock gate guide groove 5 are both U-shaped structures, and the dock gate guide groove 5 is slightly larger than the dock gate guide groove 2.
The dock gate 1 comprises a hanging-off dock gate and a movable dock gate.
In the dock construction stage, the dock head and the dock sill embedded part are constructed, the three-section dock gate 1 main body steel structure is constructed, the dock gate guide groove 2 and the dock sill guide groove 5 are embedded, and the position of the guide groove is shown in fig. 2 and 3 by taking a Xinfu dock as an example. Before a water blocking dam for cofferdam construction is not disassembled, a gantry crane and a special rigging are used for hoisting the movable dock gate and the hoisting-off dock gate to accurate installation positions, guide grooves on three sections of dock gates are preassembled, the hoisting-off is performed, the installation and welding are firm, and the test hoisting is performed, so that a commander can observe the positioning condition.
After the positioning is accurate, marking is carried out on the ground on two sides of the dock head, three sections of dock gates, the stop positions of the upper and lower lifting trolleys of the gantry crane and the stop positions of the large trolleys of the gantry crane according to the requirements of a drawing. And then lifting the dock gate, welding a guide groove on the dock gate, and then performing a simulated underwater lifting test.
The lifting commander sequentially commands and puts down the movable dock gate in the middle and the hanging dock gates at the two sides according to marked positions by means of marks, and performs initial positioning by means of initial positioning devices (dock gate guide grooves 5, dock gate guide grooves 2 and reasonable gaps between the dock gate guide grooves) on each dock gate and by means of self weight, and the dock gate guide grooves 2 can be automatically clamped into the dock gate guide grooves 5. Then, starting a hydraulic pushing device 3 in the dock gate block, pushing the middle movable dock gate to the installation position for accurate positioning; the hanging dock gates on two sides are also positioned by the same method. After all of them are in place, each marker is checked again.
After the dock gate enters a normal use state, a general ship is undocked, and any one of the two sides is lifted off the dock gate, so that the reference position is simple and clear, and the dock gate can be accurately installed in place by only referring to the ground of the dock gate and the marks on the movable dock gate during installation.
If the undocking ship is too large, the three sections of dock gates can be completely opened and shifted to prevent collision with the middle movable dock gate. In order to ensure accurate positioning, prevent the inaccurate marking position caused by possible deformation when the gantry crane is used for a long time, and use a total station to perform the current position positioning marking and recording of the dock gate before the dock gate is opened.
After the ship is undocked, only the gantry crane cart and the upper and lower hoisting trolleys on the gantry crane are hoisted to a dock gate, the gantry crane cart and the upper and lower hoisting trolleys are operated to the original fixed marking position, the middle movable dock gate or the hoisting dock gates on two sides are slowly lowered, after the movable dock gate or the hoisting dock gate on two sides reach the vicinity of the expected installation position, the dock gate is checked and calibrated by a total station, and after the movable dock gate meets the requirement of the installation position precision, the dock gate is lowered, and falls into the installation positioning groove by virtue of the self weight and the guiding positioning device, so that preliminary resetting is completed; the movable dock gate can be propped up and reset by means of the hydraulic pushing device 3 arranged in the dock gate, and the hanging dock gates on two sides can be automatically propped up by means of water pressure after water pressure difference is formed inside and outside the dock gate when water is pumped out of the dock because the gap between the hanging dock gate and the movable dock gate in the middle is small. Therefore, the three-section dock gate can accurately position and reset underwater under the condition that the underwater cannot be seen under the assistance of the prefabricated mark and the positioning of the total station, so that the sealing use requirement is met.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.
Claims (2)
1. The underwater positioning and installing method for the dock gate is characterized by comprising the following steps of: in the construction stage of a dock, the construction of a dock head and a dock sill embedded part is finished, the construction of a main steel structure of a three-section dock gate (1) is finished, a dock gate guide groove and a dock sill guide groove are pre-embedded, before a water blocking dam for cofferdam construction is not disassembled, a movable dock gate and a hanging-off dock gate are hung to an accurate installation position by using a gantry crane and a special rigging, the guide grooves on the three-section dock gate are pre-installed, the installation and welding are firm after the hanging-off, and the installation is carried out in a trial hanging manner;
after the positioning is accurate, marking the stop positions of the upper and lower crane trolleys and the stop positions of the gantry crane trolleys on the dock entrance ground, on the three-section dock gate and on the gantry crane; then lifting a dock gate, welding a guide groove on the dock gate, and then performing a simulated underwater lifting test;
the method comprises the steps of setting down a movable dock gate in the middle and a hanging-off dock gate on two sides according to marked positions in sequence by means of marking, and performing primary positioning by using a dock gate guiding groove and a dock gate guiding groove on each dock gate, wherein a dock gate guiding groove device is clamped in the dock gate guiding groove; then, starting a hydraulic pushing device in the dock gate block, pushing the middle movable dock gate to the installation position for accurate positioning; the hanging dock gates on two sides are also positioned by adopting the same method; after all of them are in place, each marker is checked again.
2. The underwater positioning and installing method for a dock gate as claimed in claim 1, wherein: after the dock gate enters a normal use state, a general ship is undocked, and only any one of the two sides of the dock gate is lifted off, so that the dock gate can be accurately installed in place by referring to marks on the ground of the dock gate and the dock gate during installation;
if the undocking ship is oversized, all the three sections of dock gates are opened and shifted;
after the ship is undocked, only the upper and lower lifting trolleys of the gantry crane are used for lifting the dock gate, the gantry crane trolley and the lifting trolleys respectively run to the ground and the marked positions on the main beam of the gantry crane, the middle movable dock gate pier or the lifting dock gate on two sides is slowly put down, after the ship reaches the vicinity of the expected installation position, the dock gate is checked and calibrated by a total station, and after the ship meets the precision requirement of the installation position, the dock gate is put down, and falls into the installation positioning groove by virtue of the self weight and the guiding positioning device, so that the preliminary positioning is completed; the middle movable dock gate is propped up and reset by means of a hydraulic pushing device arranged in the dock gate, and the lifted-off dock gates on two sides can be automatically propped up by means of water pressure after water pressure difference is formed inside and outside the dock gate when water is pumped out of the dock because a gap between the lifted-off dock gate and the middle movable dock gate block is small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098170.8A CN107914841B (en) | 2017-11-09 | 2017-11-09 | Dock gate underwater positioning and mounting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098170.8A CN107914841B (en) | 2017-11-09 | 2017-11-09 | Dock gate underwater positioning and mounting device and method |
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| Publication Number | Publication Date |
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| CN107914841A CN107914841A (en) | 2018-04-17 |
| CN107914841B true CN107914841B (en) | 2023-05-09 |
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| CN201711098170.8A Active CN107914841B (en) | 2017-11-09 | 2017-11-09 | Dock gate underwater positioning and mounting device and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501801A (en) * | 2020-05-27 | 2020-08-07 | 中交第四航务工程勘察设计院有限公司 | Steel-concrete combined wedge-shaped water stop structure |
| CN113002727B (en) * | 2021-03-05 | 2022-09-16 | 中交第四航务工程局有限公司 | Large dry dock gate system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1150478A (en) * | 1966-12-15 | 1969-04-30 | Head Wrightson & Co Ltd | Improvements in or relating to Dock Gates |
| CN100354179C (en) * | 2004-10-15 | 2007-12-12 | 上海外高桥造船有限公司 | Transverse haif island type shipbuilding practices |
| CN101670882B (en) * | 2009-09-02 | 2012-11-14 | 惠生（南通）重工有限公司 | Method for positioning water floating fall pier of super-huge type segmental dock |
| CN102383403B (en) * | 2011-08-24 | 2013-11-06 | 江苏科技大学 | Combined gate-type dry dock door |
| CN102963496A (en) * | 2012-11-06 | 2013-03-13 | 大连船舶重工船业有限公司 | Underwater positioning and installation method of flap gate |
| CN104260851A (en) * | 2014-09-12 | 2015-01-07 | 江苏扬子鑫福造船有限公司 | Hanging-from type combined dock gate |
| CN207450192U (en) * | 2017-11-09 | 2018-06-05 | 江苏新扬子造船有限公司 | A kind of dock gate Underwater Navigation erecting device |
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