CN108442352B - Ship lock wall protection device and method thereof - Google Patents
Ship lock wall protection device and method thereof Download PDFInfo
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- CN108442352B CN108442352B CN201810365438.8A CN201810365438A CN108442352B CN 108442352 B CN108442352 B CN 108442352B CN 201810365438 A CN201810365438 A CN 201810365438A CN 108442352 B CN108442352 B CN 108442352B
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- flitch
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C1/00—Locks or dry-docks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Revetment (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a lock wall protection device and a lock wall protection method, wherein the device comprises a lock wall rectangular protection steel plate, U-shaped dowel bars, crescent-shaped flitch plates, bolts and a polyvinyl chloride elastic waterproof coating filling body; the rectangular protective steel plate of the gate wall comprises N transverse rows and M longitudinal rows; each rectangular protection steel plate of the brake wall is transversely arranged; a 10mm transverse seam is arranged between two adjacent rectangular protective steel plates of the transverse gate walls; a longitudinal seam of 20mm is arranged between two adjacent longitudinal rows of rectangular protection steel plates of the gate wall; the crescent flitch is connected with the gate wall concrete through bolts; and the space between the rectangular protective steel plate of the lock wall and the lock wall concrete and the space between the longitudinal and transverse joints are filled with polyvinyl chloride elastic waterproof paint. The invention has the characteristics of simple structure, easy construction, low cost, strong anti-collision capability, small friction force and good durability.
Description
Technical Field
The invention relates to the field of surface protection of newly-built or modified ship locks, bridges, wharfs and other wading buildings impacted by traveling ships, in particular to a lock wall protection device and a lock wall protection method.
Background
With the development of logistics industry, the domestic freight traffic is greatly improved, so that ships are forced to develop to large scale, and further, the channel grade is required to be further improved. The ship lock is used as the throat of the channel, the size of the ship lock is smaller than that of the channel, and the concrete of the lock wall is seriously damaged under the more frequent impact of a large ship, especially at the two side wall parts of the lock head. For this reason, many ship locks choose to use steel plates at the lock wall, especially at the lock head, for lock wall protection, and welded joints are used between the longitudinal and transverse seams of the steel plates. However, due to the factors of fatigue damage caused by the temperature of the welding materials, different shrinkage rates of the steel plates and the concrete, large friction between the ship fender and the steel plates and the like, the seam of the steel plates is torn and warped, gaps rapidly develop from small to large, the ship passing through the lock is damaged, and the effective width of the ship lock is reduced. When the above problems occur, it is currently common practice to directly cut out the warped portion of the steel plate, but this results in the concrete being directly exposed, the loss of the lock wall is more serious, and the problem is more serious due to the cut-out under the impact of the ship.
The inherent defect of the steel plate protection is deeply paid attention to by a ship lock management unit, and the problem needs to be solved whether the old ship lock is maintained and modified or a new ship lock is built. The prior protection method mainly considers two aspects, namely, the connection method of the steel plate and the concrete is changed, the anchoring force of the steel plate is enhanced, such as the anchoring of reinforcing steel bars is encrypted, or the steel bar is used for anchoring, and the like; the other is to use a novel anti-collision facility, such as Xu Xudong, and the like, and an energy-absorbing anti-collision steel guard consisting of a steel plate, an anchor rod, an embedded sleeve, an energy-absorbing spring and a rubber plate is invented. Zhao Xiaoling A self-floating ship lock crash barrier consisting of a plurality of vertical balance pipes and two horizontal buffer pipes is disclosed. Jiang Gongquan an anti-collision breast wall for ship locks. In addition, no other protection methods have been described. Therefore, the domestic research on the lock wall protection problem of the ship lock is not enough, and the problem needs to be solved from more angles.
Disclosure of Invention
The invention aims to solve the technical problem of providing a lock wall protection device for a ship lock, which has the characteristics of simple structure, easy construction, low cost, strong anti-collision capability, small friction and good durability, is suitable for protecting and maintaining the steel plate of the old ship lock and the lock wall of a newly-built ship lock, and meets the requirement of preventing the concrete lock wall of the ship lock from being damaged under the frequent collision of the ship.
In order to solve the technical problems, the invention adopts the following technical scheme: a lock wall protecting device of a ship lock comprises a lock wall rectangular protecting steel plate, U-shaped dowel bars, crescent-shaped flitch plates, bolts and a polyvinyl chloride elastic waterproof coating filling body; the rectangular protection steel plate for the gate wall comprises N transverse rows and M longitudinal rows, wherein N is more than 1, and M is more than 1; each lock wall rectangular protection steel plate is transversely arranged; a 10mm transverse seam is arranged between two adjacent rectangular protective steel plates of the transverse gate walls; a longitudinal seam of 20mm is arranged between two adjacent longitudinal rows of rectangular protection steel plates of the gate wall; the longitudinal joints are connected with the steel plate and the gate wall by crescent flitch;
the back of the rectangular protection steel plate of the gate wall is welded with U-shaped dowel bars and is in concrete connection with the gate wall;
the crescent flitch is connected with the gate wall concrete through bolts, and the gate wall rectangular protection steel plate is arranged between the crescent flitch and the gate wall concrete; the surface of the crescent flitch is provided with a circular groove; the bottom of the groove is provided with a bolt hole penetrating through the crescent flitch; the studs of the bolts penetrate through the grooves and the bolt holes and are in threaded connection with the concrete of the lock wall at the longitudinal joints of the protective steel plates, and the nuts of the bolts are propped into the circular grooves;
polyvinyl chloride elastic waterproof paint filling bodies are arranged between the contact surfaces of the rectangular protective steel plates of the gate wall and the concrete in the transverse joint and the longitudinal joint.
Further, the crescent flitch is a vertical strip with a crescent cross section, and the height of the crescent flitch is consistent with the height of the rectangular protective steel plate of the brake wall; the crescent flitch is ridden on two adjacent rectangular protective steel plates of the brake wall in a centering way; the bolts sequentially pass through the round grooves of the crescent flitch, the bolt holes and the longitudinal joints between the adjacent steel plates to be connected with the gate wall concrete.
Further, the arc radius of the crescent flitch is 100mm, and the chord height is 50mm.
Further, the crescent flitch is an ultra-high molecular weight polyethylene board.
Further, the center hole distance of the bolt is 20cm.
Further, the bolts are 12.9 grade M20 inner hexagonal chemical bolts made of SUS304 stainless steel.
Further, the nut surface of the bolt is recessed at least 5mm into the circular recess of the crescent-shaped flitch.
Further, a round groove top opening of the crescent flitch is provided with a 2mm chamfer.
Further, a gap of 2mm is reserved between the bolt and the inner wall of the circular groove of the crescent flitch.
The invention also provides a method for protecting the lock wall of the ship lock, which comprises the following steps:
1) Firstly, welding U-shaped dowel bars on the back of a rectangular protective steel plate of a lock wall, and calculating and determining the number and the length of the dowel bars according to the impact force of a ship designed by the lock;
2) Smearing polyvinyl chloride elastic waterproof paint on the back of the rectangular protective steel plate of the lock wall and the U-shaped dowel bars;
3) Transversely arranging the rectangular gate wall protection steel plates, and arranging the rectangular gate wall protection steel plates in N transverse rows and M longitudinal rows, wherein N is more than 1, and M is more than 1; a 10mm transverse seam is arranged between two adjacent rectangular protective steel plates of the transverse gate walls; a longitudinal seam of 20mm is arranged between two adjacent longitudinal rows of rectangular protection steel plates of the gate wall; the transverse seam and the longitudinal seam are not welded;
4) Pouring gate wall concrete;
5) The transverse joint and the longitudinal joint of the rectangular protective steel plate of the lock wall are filled with polyvinyl chloride elastic waterproof paint;
6) Covering a rectangular protective steel plate of the gate wall with a crescent flitch, drawing a positioning hole on the gate wall according to the hole position of the crescent flitch, then taking down the crescent flitch, drilling a hole on the concrete gate wall, cleaning the hole, and finally plugging in a chemical agent of a chemical bolt;
7) And installing a crescent flitch, and screwing the bolt to enable the nut of the bolt to sink into the circular groove.
The invention has the beneficial effects that:
(1) The transverse joint of the protective steel plate is 10mm wide, the longitudinal joint is 20mm wide, and the transverse joint and the longitudinal joint are not welded, so that the expansion deformation of the steel plate caused by various reasons can be fully expanded, the additional stress of the steel plate and concrete is reduced, the steel plate is not easy to separate from the concrete of the lock wall, the acting force of a ship on the steel plate is mainly in the horizontal direction, the vertical acting force is small, the vertical warping of the steel plate is not easy to be caused, the joint which is easy to cause the horizontal warping of the steel plate is covered by the crescent flitch, and the horizontal warping of the vertical joint of the steel plate is thoroughly stopped.
(2) The arc radius of the crescent flitch adopted by the invention is 100mm, and the chord height is 50mm. Because the top surface of the crescent flitch is 50mm higher than the plane of the protective steel plate, the impact force of the ship board is not easy to act on the joint of the crescent flitch and the steel plate, and the possibility of joint damage is reduced; meanwhile, the stress characteristic of the arc is that the ship impact force acting on the crescent flitch can be decomposed into radial component force pointing to the center of the arc, tangential component force perpendicular to the radial component force and vertical component force, the center of the arc is in the interior of the brake wall concrete, the radial component force is borne by the concrete, and the characteristics of strong arc bearing capacity and strong concrete compressive strength are utilized. The round groove top of crescent flitch sets up 2mm chamfer to reduce the damage of frictional force and self closed angle when boats and ships strike.
(3) The crescent flitch adopted by the invention is made of ultra-high molecular weight polyethylene material. The ultra-high molecular weight polyethylene material has the characteristics of small friction coefficient, light weight, strong impact resistance, abrasion resistance, corrosion resistance, ultraviolet resistance, aging resistance, convenient installation and maintenance and the like. The friction coefficient is small, so that horizontal tangential component force and vertical component force of the ship impact force on the arc of the crescent flitch are reduced, further damage of the ship and the gate wall is reduced, and adaptability of the ship to rolling and pitching caused by the ship impacting the gate wall is enhanced; the weight is light, the number of anchor bolts of the arc-shaped flitch is reduced, and the bearing capacity weakening of the crescent-shaped flitch caused by the bolt holes is also reduced; the impact resistance is strong, so that the strength of the crescent flitch under the action of the radial component of the ship impact force is ensured; wear resistance, corrosion resistance, ultraviolet resistance, aging resistance and the like, reduces the replacement frequency of the crescent-shaped flitch for long-term use, and ensures that the crescent-shaped flitch is more economical.
(4) The polyvinyl chloride elastic waterproof coating filling bodies are arranged between the rectangular protective steel plates of the lock wall and the contact surface of the concrete in the transverse joint and the longitudinal joint of the protective steel plates. The polyvinyl chloride elastic waterproof coating is solidified to form a seamless waterproof and anticorrosive layer without joints, can form a continuous closed system, can be firmly bonded with various dry base surfaces, has strong shape adaptability and high elasticity, can prevent the back of a protective steel plate from being corroded due to water inflow, absorbs impact energy of ships, and has the functions of sealing and preventing water and buffering.
(5) The crescent flitch and lock wall concrete adopted by the invention are connected by adopting 12.9-grade M20 inner hexagonal chemical bolts made of SUS304 stainless steel, the strength is high, rust is not easy to generate, the connection effect is good, the replacement is convenient, and the lock wall concrete can be used for the lock wall protection reconstruction of the old lock and the protection setting of the newly-built lock, and the lock wall concrete is simple and convenient to construct and economical in manufacturing cost. The surface of the screw cap at the circular groove of the crescent flitch falls into the surface of the crescent flitch by at least 5mm so as to ensure that the screw cap is not exposed under the condition that the crescent flitch is worn out to a certain extent, and the screw cap can be effectively prevented from being damaged due to the fact that the screw cap is higher than the ship. A gap of 2mm is reserved between the bolt and the inner wall of the circular groove of the crescent flitch so as to facilitate rotation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of the water side of the structure of the present invention;
FIG. 2 is a schematic diagram of the present invention;
FIG. 3 is a cross-sectional I-I view of FIG. 2;
fig. 4 is a section view of fig. 2 in section II-II.
FIG. 5 is a cross-sectional view of the crescent shaped flitch hole.
Detailed Description
The technical scheme of the present invention will be clearly and completely described in the following detailed description.
As shown in fig. 1, 2 and 3, the lock wall protection device of the invention comprises a lock wall rectangular protection steel plate 1, a U-shaped dowel bar 11, a crescent-shaped flitch 4, a bolt 6 and a polyvinyl chloride elastic waterproof paint filling body 10; the rectangular protection steel plate 1 for the gate wall comprises N transverse rows and M longitudinal rows, wherein N is more than 1, and M is more than 1; each lock wall rectangular protection steel plate 1 is transversely arranged; a transverse joint 2 of 10mm is arranged between two adjacent rectangular protection steel plates of the transverse gate walls; a longitudinal seam 3 of 20mm is arranged between two adjacent longitudinal rows of rectangular protection steel plates of the gate wall; the crescent flitch 4 rides on two adjacent rectangular protection steel plates 1 of the brake wall in a centering way; the crescent flitch 4 is connected with the gate wall concrete 5 through bolts 6, and the gate wall rectangular protection steel plate 1 is arranged between the crescent flitch 4 and the gate wall concrete 5;
as shown in fig. 3 and 5, the crescent-shaped flitch surface is provided with a circular groove 8; the bottom of the groove is provided with a bolt hole 9 penetrating through the crescent flitch; the inner wall of the bolt hole 9 is provided with threads matched with the bolt. The stud of the bolt passes through the bolt hole 9 below the circular groove 8 and is in threaded connection with the lock wall concrete 5, and the nut of the bolt falls into the groove. The bolts are 12.9 grade M20 inner hexagonal chemical bolts made of SUS304 stainless steel.
The crescent flitch 4 is a strip with a crescent cross section, and the height of the crescent flitch is consistent with that of the rectangular protective steel plate 1 of the brake wall; the crescent flitch 4 rides on two adjacent rectangular protection steel plates 1 of the brake wall; the bolts 6 are connected with the lock wall concrete 5 through the circular grooves 8 of the crescent-shaped flitch plates 4 and the longitudinal joints 3 in sequence.
As shown in fig. 3 and 4, the arc radius of the crescent flitch 4 is 100mm, the chord height is 50mm, the characteristic of strong bearing capacity of the arch structure is utilized, and meanwhile, the ship side of the passing ship is prevented from touching the joint of the crescent flitch 4 and the rectangular lock wall protection steel plate 1. The crescent flitch 4 is made of ultra-high molecular weight polyethylene material, and meets the characteristics of strong bearing capacity and small friction force required by the flitch. The crescent flitch 4 is provided with a circular groove 8 and is connected with the lock wall concrete 5 by a bolt 6. The center hole distance of the bolt 6 is 200mm. After the bolts 6 are fixed, the surface of the bolts is sunk into the outer surface of the crescent flitch 4 by at least 5mm so as to prevent the ship from encountering the bolts to form stress concentration.
And polyvinyl chloride elastic waterproof paint filling bodies 10 are arranged in the transverse joint 2 and the longitudinal joint 3 and between the contact surfaces of the rectangular protective steel plate 1 of the lock wall and the concrete 5 of the lock wall, so that the back of the steel plate is not rusted, and a buffer effect is achieved.
As shown in FIG. 3, a 2mm chamfer 7 is arranged at the circular groove 8 of the crescent-shaped flitch 4, and a 2mm gap is reserved between the bolt 6 and the inner wall of the circular groove on the crescent-shaped flitch 4.
The invention relates to a method for preventing a lock wall protective steel plate of a ship lock from warping, which comprises the following steps:
1) Firstly, U-shaped dowel bars are welded on the back of a rectangular protective steel plate of a lock wall, and the number and the length of the dowel bars are calculated and determined according to the impact force of a ship designed by the lock.
2) And smearing polyvinyl chloride elastic waterproof paint on the back of the rectangular protective steel plate of the lock wall and the U-shaped dowel bars.
3) Transversely arranging the rectangular gate wall protection steel plates, and arranging the rectangular gate wall protection steel plates in N transverse rows and M longitudinal rows, wherein N is more than 1, and M is more than 1; a 10mm transverse seam is arranged between two adjacent rectangular protective steel plates of the transverse gate walls; a longitudinal seam of 20mm is arranged between two adjacent longitudinal rows of rectangular protection steel plates of the gate wall; neither the transverse nor the longitudinal seams are welded.
4) And pouring gate wall concrete.
5) The transverse joint and the longitudinal joint of the rectangular protective steel plate of the lock wall are filled with polyvinyl chloride elastic waterproof paint.
6) The crescent flitch is covered on a rectangular protective steel plate of the lock wall, a positioning hole is drawn on the lock wall according to the hole position of the crescent flitch, then the crescent flitch is taken down, a hole is drilled on the concrete lock wall, the hole is cleared, and finally the chemical agent of the chemical bolt is plugged.
7) And installing a crescent flitch, and screwing the bolt to enable the nut of the bolt to sink into the circular groove.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and the present invention is not limited to the above embodiments, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention should fall within the protection scope of the present invention, and the claimed technical content of the present invention is fully described in the claims.
Claims (9)
1. The protection method of the lock wall protection device of the ship lock is characterized by comprising the following steps of: comprises a rectangular protective steel plate for the lock wall, U-shaped dowel bars, crescent-shaped flitch plates, bolts and polyvinyl chloride elastic waterproof paint filling bodies; the rectangular protection steel plate for the gate wall comprises N transverse rows and M longitudinal rows, wherein N is more than 1, and M is more than 1; each lock wall rectangular protection steel plate is transversely arranged; a 10mm transverse seam is arranged between two adjacent rectangular protective steel plates of the transverse gate walls; a longitudinal seam of 20mm is arranged between two adjacent longitudinal rows of rectangular protection steel plates of the gate wall; the longitudinal joints are connected with the steel plate and the gate wall by crescent flitch; the back of the rectangular protection steel plate of the gate wall is welded with U-shaped dowel bars which are connected with the gate wall in a concrete manner; the crescent flitch is connected with the gate wall concrete through bolts, and the gate wall rectangular protection steel plate is arranged between the crescent flitch and the gate wall concrete; the surface of the crescent flitch is provided with a circular groove; the bottom of the groove is provided with a bolt hole penetrating through the crescent flitch; the studs of the bolts penetrate through the grooves and the bolt holes and are in threaded connection with the concrete of the lock wall at the longitudinal joints of the protective steel plates, and the nuts of the bolts are propped into the circular grooves; polyvinyl chloride elastic waterproof paint filling bodies are arranged between the contact surfaces of the rectangular protective steel plates of the gate wall and the concrete in the transverse joint and the longitudinal joint;
the protection method of the lock wall protection device of the ship lock further comprises the following steps:
(1) Firstly, welding U-shaped dowel bars on the back of a rectangular protective steel plate of a lock wall, and calculating and determining the number and the length of the dowel bars according to the impact force of a ship designed by the lock;
(2) Smearing polyvinyl chloride elastic waterproof paint on the back of the rectangular protective steel plate of the lock wall and the U-shaped dowel bars;
(3) Transversely arranging the rectangular gate wall protection steel plates, and arranging the rectangular gate wall protection steel plates in N transverse rows and M longitudinal rows, wherein N is more than 1, and M is more than 1; a 10mm transverse seam is arranged between two adjacent rectangular protective steel plates of the transverse gate walls; a longitudinal seam of 20mm is arranged between two adjacent longitudinal rows of rectangular protection steel plates of the gate wall; the transverse seam and the longitudinal seam are not welded;
(4) Pouring gate wall concrete;
(5) The transverse joint and the longitudinal joint of the rectangular protective steel plate of the lock wall are filled with polyvinyl chloride elastic waterproof paint;
(6) Covering a rectangular protective steel plate of the gate wall with a crescent flitch, drawing a positioning hole on the gate wall according to the hole position of the crescent flitch, then taking down the crescent flitch, drilling a hole on the concrete gate wall, cleaning the hole, and finally plugging in a chemical agent of a chemical bolt;
(7) And installing a crescent flitch, and screwing the bolt to enable the nut of the bolt to sink into the circular groove.
2. The method of claim 1, wherein: the crescent flitch is a vertical strip with a crescent cross section, and the height of the crescent flitch is consistent with the height of the rectangular protective steel plate of the brake wall; the crescent flitch is ridden on two adjacent rectangular protective steel plates of the brake wall in a centering way; the bolts sequentially pass through the round grooves of the crescent flitch, the bolt holes and the longitudinal joints between the adjacent steel plates to be connected with the gate wall concrete.
3. A method of protecting a lock wall guard according to claim 1 or 2, wherein: the arc radius of the crescent flitch is 100mm, and the chord height is 50mm.
4. A method of protecting a lock wall guard according to claim 1 or 3, wherein: the crescent flitch is an ultra-high molecular weight polyethylene board.
5. The method of claim 1, wherein: the center hole distance of the bolt is 20cm.
6. A method of protecting a lock wall guard according to claim 1, 2 or 5, wherein: the bolts are 12.9-grade M20 inner hexagonal chemical bolts made of SUS304 stainless steel.
7. A method of protecting a lock wall guard according to claim 1 or 2, wherein: the nut surface of the bolt is sunk into the circular groove of the crescent flitch by at least 5mm.
8. A method of protecting a lock wall guard according to claim 1 or 2, wherein: the round groove top of crescent flitch sets up 2mm chamfer.
9. The method of claim 1, wherein: a gap of 2mm is reserved between the bolt and the inner wall of the circular groove of the crescent flitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365438.8A CN108442352B (en) | 2018-04-23 | 2018-04-23 | Ship lock wall protection device and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365438.8A CN108442352B (en) | 2018-04-23 | 2018-04-23 | Ship lock wall protection device and method thereof |
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| CN108442352A CN108442352A (en) | 2018-08-24 |
| CN108442352B true CN108442352B (en) | 2023-05-26 |
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| CN201810365438.8A Active CN108442352B (en) | 2018-04-23 | 2018-04-23 | Ship lock wall protection device and method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109555097B (en) * | 2019-01-15 | 2024-05-03 | 安徽理工大学 | Quick water delivery and anti-collision system of ship lock |
| CN110258491A (en) * | 2019-06-25 | 2019-09-20 | 深圳市乾行达科技有限公司 | Ship lock safeguard structure |
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