CN106677121A - Movable type permeable spur structure capable of preventing coast erosion and construction method - Google Patents

Movable type permeable spur structure capable of preventing coast erosion and construction method Download PDF

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Publication number
CN106677121A
CN106677121A CN201611251030.5A CN201611251030A CN106677121A CN 106677121 A CN106677121 A CN 106677121A CN 201611251030 A CN201611251030 A CN 201611251030A CN 106677121 A CN106677121 A CN 106677121A
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CN
China
Prior art keywords
open caisson
open
erosion
permeable spur
anchorage device
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Granted
Application number
CN201611251030.5A
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Chinese (zh)
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CN106677121B (en
Inventor
梁娟
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Zhejiang Ocean University ZJOU
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Zhejiang Ocean University ZJOU
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Priority to CN201611251030.5A priority Critical patent/CN106677121B/en
Publication of CN106677121A publication Critical patent/CN106677121A/en
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Publication of CN106677121B publication Critical patent/CN106677121B/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/06Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/11Hard structures, e.g. dams, dykes or breakwaters

Abstract

The invention provides a movable type permeable spur structure capable of preventing coast erosion. The movable type permeable spur structure capable of preventing coast erosion comprises a coast, open occasions and anchorage devices. A plurality rows of open occasions are installed on one side of the coast at intervals and in a staggered mode, and the adjacent open occasions are connected through anchorage devices; the center of each open occasion is in a hollow shape, an opening is formed in the upper end of each open occasion, connecting rings are symmetrically installed on the two sides of each open occasion, a water inlet hole is formed in each open occasion, a trapezoidal bottom mat is installed at the bottom of each open occasion, and trapezoidal bottom mats are arranged on the foundation of the coast; the anchorage devices are installed on the two sides of the open occasions and connected with the open occasions through a plurality of anchor chains so as to be fixed to the foundation of the coast. According to the movable type permeable spur structure capable of preventing coast erosion and a construction method, the effect of coast erosion prevention can be achieved, and the movable type permeable spur structure can be conveniently dismounted after the protection requirement is met; the permeable structure of a spur can reduce damage of waves and tides to the spur, so that the project amount is relatively reduced, and construction efficiency is improved; and in addition, construction materials of the dismounted spur can be recycled, and waste of construction materials is avoided.

Description

Protect the movable permeable spur structure and construction method of Coastal erosion
Technical field
It is especially a kind of to protect the movable permeable spur structure of Coastal erosion and apply the present invention relates to coast protection field Work method.
Background technology
As the fast-developing and coastal zone resources of coastal economy develop increasing considerably for intensity, littoral zone is made Intensity is also increasing.Meanwhile, produced that sea level rise by global warming and the wave of ocean, tide, The destruction of the seawater movements such as ocean current and chemical action to seashore, the degree that Coastal erosion is retreated is increasingly sharpened.Invaded in seashore In the prophylactico-therapeutic measures of erosion, groynes is the protection works building for commonly using, and groynes changes flow dynamic condition, the mud of seashore The Scour and Accretion of husky motion process and seashore, good protection effect has been reached to corroding seashore.But, it is several in engineering practice All groynes are all gravity type or pile foundation type building, and the construction material such as block stone, the concrete body of casting or caisson is launched Or piling enters on seashore bottom, is fixed on seabed.Fixed groynes is once built and is finished, even if having completed eroding bank section The requirement of shelter on beach, but still leave in situ, the natural landscape of littoral zone is on the one hand destroyed, change the function category of seashore Property, on the other hand cause that the exploitation again of seashore are restricted, it is impossible to realize the sustainable utilization of marine resources.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of effect that can not only reach seashore LP blades, and The movable permeable spur structure and construction method of the protection Coastal erosion that can be easily removed after requirement of shelter is completed.
To solve above-mentioned existing technical problem, the present invention uses following scheme:It is a kind of to protect the movable of Coastal erosion Permeable spur structure, including seashore, open caisson and anchorage device, the seashore side is provided with the open caisson of some row's interleaveds, phase Adjacent open caisson is connected by anchor chain, and open caisson center is in Openworks shape, and upper end is provided with opening, and open caisson is symmetrically arranged on two with connection ring, open caisson Inlet opening is provided with, open caisson bottom is provided with trapezoidal mat, and trapezoidal mat is placed on seashore ground, open caisson both sides are provided with anchorage dress Put, anchorage device is connected and fixed on seashore ground by some anchor chains and open caisson.
Preferably, the spacing of open caisson reduces successively from dam pillow to abutment, dam pillow to the centre-to-centre spacing in dam is 2. 0-10 M, the centre-to-centre spacing in dam to abutment is 1.0-2.0m, and the spacing for often arranging open caisson is one group 2-3 times of open caisson total length, is fully stopped The impact of seawater, protects the erosion of seashore, and permeable structure can mitigate wave, impact of the trend to open caisson.
Preferably, the angle between anchor chain is 50-70 °, the angle between anchor chain and anchorage device is 50-60 °, and it is right to strengthen The support of open caisson, improves ability to bear during sea beat open caisson.
Preferably, inlet opening penetrates a diameter of 10-30cm of the inwall of open caisson and inlet opening, it is easy to seawater to enter open caisson Inside make well sinking, increase open caisson ballast, keep steady the bottom of open caisson.
Preferably, trapezoidal mat is provided with cylindrical hole, cylindrical hole upper end is provided with the gradient, permeable hole is provided with cylindrical hole, Open caisson is fixed in the cylindrical hole in trapezoidal mat, is easy to the replacing and dismounting of open caisson, recycles resource.
Preferably, open caisson, trapezoidal mat, the material of anchorage device are reinforced concrete, the steel in reinforced concrete Muscle and anchor chain are provided with erosion shield, increase the service life of groynes group, improve the quality of groynes group.
Preferably, the composition and its weight portion of erosion shield are:Epoxy acrylic resin 40-45 parts, benzoic acid two 3-6 parts of fourth fat, hydroxy-ethyl acrylate 5-8 parts, polytetrafluoroethylene (PTFE) 2-3 parts, polyvinyl alcohol 12-15 parts, p methoxy phenol 2-3 Part, take charge of 0.01-0.02 parts, 1,3-PD 0.02-0.03 parts of benzene 80.
A kind of movable permeable spur construction method of protection Coastal erosion, comprises the following steps:
1)Prefabricated reinforced concrete open caisson is transported to engineering marine site by way of transportation by lighter and lifting are combined;
2)The sea-floor relief of open caisson placement position is flattened, leveling area is driven piles more than the area of base of open caisson by spacing size The trapezoidal mat of fixation and anchorage device;
3)Open caisson is put into water, is fixed in trapezoidal mat, removes lifting appliance;
4)Open caisson lower end is connected by anchor chain with anchorage device, and open caisson upper end is connected to form groynes by anchor chain with adjacent caissons Group, groynes group one end is fixed by the sea, and some row's groynes groups form groynes group.
Preferably, groynes group's construction uses first downstream upstream again, the construction of groynes group using method is attacked and occupied, adopt by each open caisson First backshore, then foreshore are used, last interior shore advances to sea successively.
Beneficial effect:The movable permeable spur structure and construction method of this protection Coastal erosion that the present invention is provided, Can not only reach the effect of seashore LP blades, and can easily be removed after requirement of shelter is completed, meanwhile, groynes it is saturating Water is constructed, and can mitigate the impact failure of wave, trend to groynes, relative to reduce quantities, after improving efficiency of construction, and dismounting Groynes construction material also reusable edible, it is to avoid the waste of construction material.
A kind of movable permeable spur structure of protection Coastal erosion is provided present invention employs above-mentioned technical proposal and apply Work method, compensate for the deficiencies in the prior art, reasonable in design, easy to operate.
Figure of description
Fig. 1 is movable permeable spur plane figure schematic diagram of the invention;
Fig. 2 is the structural representation of open caisson connection of the present invention;
Fig. 3 is movable permeable spur horizontal section schematic diagram of the invention.
Specific embodiment
It is described in further detail below in conjunction with drawings and Examples:
Embodiment 1:
As shown in Figure 1, 2, 3, a kind of movable permeable spur structure of protection Coastal erosion, including seashore 1, open caisson 2 and anchorage Device 3, the side of seashore 1 is provided with the open caisson 2 of some row's interleaveds, and adjacent caissons 2 are connected by anchor chain 4, and the center of open caisson 2 is in engrave Empty shape, upper end is provided with opening, and open caisson 2 is symmetrically arranged on two with connection ring 5, and open caisson 2 is provided with inlet opening, and the bottom of open caisson 2 is provided with ladder Shape mat 6, trapezoidal mat 6 is placed on seashore ground 7, and the both sides of open caisson 2 are provided with anchorage device 3, and anchorage device 3 passes through some anchors Chain 4 is connected and fixed on seashore ground 7 with open caisson 2.
The spacing of open caisson 2 reduces successively from dam pillow to abutment, and dam pillow to the centre-to-centre spacing in dam is 5 m, to abutment in dam Centre-to-centre spacing is 2m, and the spacing for often arranging open caisson 2 is one group 2 times of the total length of open caisson 2, fully stops the impact of seawater, protects seashore Erosion, permeable structure can mitigate wave, impact of the trend to open caisson 2.
Angle between anchor chain 4 is 50 °, and the angle between anchor chain 4 and anchorage device 3 is 50 °, strengthens the support to open caisson 2, Improve ability to bear during sea beat open caisson 2.
Inlet opening penetrates a diameter of 20cm of the inwall of open caisson and inlet opening, is easy to seawater under making open caisson 2 in open caisson 2 It is heavy, increase the ballast of open caisson 2, keep steady the bottom of open caisson 2.
Trapezoidal mat 6 is provided with cylindrical hole, and cylindrical hole upper end is provided with the gradient, and permeable hole is provided with cylindrical hole, and open caisson 2 is installed It is fixed in the cylindrical hole in trapezoidal mat 6.
Open caisson 2, trapezoidal mat 6, the material of anchorage device 3 are reinforced concrete, reinforcing bar in reinforced concrete and Anchor chain 4 is provided with erosion shield, increases the service life of groynes group, improves the quality of groynes group.
The composition and its preferred weight of erosion shield part are:40 parts of epoxy acrylic resin, 6 parts of benzoic acid dibutylester, 5 parts of hydroxy-ethyl acrylate, 2 parts of polytetrafluoroethylene (PTFE), 12 parts of polyvinyl alcohol, 3 parts of p methoxy phenol, take charge of 80 0.01 parts of benzene, 1,3- 0.02 part of propane diols.
A kind of movable permeable spur construction method of protection Coastal erosion, comprises the following steps:
1)Prefabricated reinforced concrete open caisson 2 is transported to engineering marine site by way of transportation by lighter and lifting are combined;
2)The sea-floor relief of the placement position of open caisson 2 is flattened, leveling area is driven piles more than the area of base of open caisson by spacing size The trapezoidal mat 6 of fixation and anchorage device 3;
3)Open caisson 2 is put into water, is fixed in trapezoidal mat 6, removes lifting appliance;
4)The lower end of open caisson 2 is connected by anchor chain 4 with anchorage device 3, and the upper end of open caisson 2 is connected formation by anchor chain 4 with adjacent caissons 2 Groynes group, groynes group one end is fixed by the sea, and some row's groynes groups form groynes group.
Groynes group constructs and uses first downstream upstream again, and using method is attacked and occupied, each open caisson uses elder generation backshore to the construction of groynes group, Foreshore, last interior shore, advance to sea successively again.
Embodiment 2:
The movable permeable spur group that protection Coastal erosion is set up when seashore 1 is by by sea water intrusion, it is necessary on seashore 1, Prefabricated reinforced concrete open caisson 2 is transported to engineering marine site by way of transportation by lighter and lifting are combined, open caisson 2 is delivered The sea-floor relief leveling of position, leveling area, more than the area of base of open caisson 2, is 5m according to the spacing of open caisson 2, often arranges open caisson 2 Spacing be 2-3 times of the total length of row's open caisson 2 of the distance trapezoidal mat 6 of piling fixation and anchorage device 3, then by open caisson 2 It is put into water, open caisson 2 is provided with inlet opening, seawater is entered in open caisson 2 by inlet opening, relies on the relation of buoyancy and gravity, is sunk Well 2 sinks to through the country slowly, and inlet opening increased the ballast of open caisson 2, keeps steady the bottom of open caisson 2, and open caisson 2 will reach seabed It is to be fixed in the cylindrical hole for squeezing into trapezoidal mat 6 each open caisson 2, trapezoidal mat 6 and seashore ground contact area Greatly, the lifting surface area during seat bottom of open caisson 2 is increased, the footing for eliminating groynes easily hair empties the hidden danger for causing groynes to cave in, open caisson 2 Be connected with anchorage device 3 through the connection ring 5 on open caisson 2 by anchor chain 4 after being fixed in trapezoidal mat 6, Parallel to the flow direction with Inverse water (flow) direction is equipped with two anchor chains 4, and the angle between anchor chain 4 is 60 °, angle during tension between anchor chain 4 and anchorage device 3 It is 60 °, what can more be stablized fixes open caisson 2, improves the endurance that sea washes open caisson 2 is, the length of anchor chain 4 includes seawater The distance rocked is produced during impact open caisson 2, often the connection ring 5 between the open caisson 2 in row by anchor chain 4 through the upper end of open caisson 2 is mutual Connection, last open caisson 2 is connected by anchor chain 4 with seashore 1, improves the stability of open caisson 2, is often arranged open caisson 2 and is intersected peace Put, greatly improve the ability for stopping sea washes, often depending on width of the quantity of row's open caisson 2 according to the wave band of seashore 1, can root The groynes group of different in width is set up according to different seashores 1, groynes group construction uses first downstream upstream again, and the construction of groynes group uses Account for method, each open caisson 2 using first backshore, then foreshore, it is last in shore, advanced to sea successively, when protection is completed, can be by rising Motivation extracts open caisson 2, transports, and the open caisson 2 that will can be shipped when needing to protect seashore 1 again next time is inserted directly into what is left In trapezoidal mat 6, reusable edible resource reduces the waste of resource, will not also destroy the natural landscape of the band of seashore 1.
Specific embodiment described herein is only to explanation for example of the invention.The technical field of the invention Technical staff can be made various modifications or supplement to described specific embodiment or be substituted using similar mode, but Without departing from of the invention or surmount scope defined in appended claims.

Claims (9)

1. a kind of movable permeable spur structure of protection Coastal erosion, including seashore(1), open caisson(2)With anchorage device(3), Characterized in that, the seashore(1)Side is provided with the open caisson of some row's interleaveds(2), adjacent caissons(2)By anchor chain(4) Connection, open caisson(2)Center is in Openworks shape, and upper end is provided with opening, open caisson(2)It is symmetrically arranged on two with connection ring(5), open caisson(2)On It is provided with inlet opening, open caisson(2)Bottom is provided with trapezoidal mat(6), trapezoidal mat(6)It is placed in seashore ground(7)On, open caisson(2) Both sides are provided with anchorage device(3), anchorage device(3)By some anchor chains(4)With open caisson(2)It is connected and fixed to seashore ground (7)On.
2. it is according to claim 1 it is a kind of protect Coastal erosion movable permeable spur structure, it is characterised in that institute State open caisson(2)Spacing from dam pillow reduced successively to abutment, dam pillow to the centre-to-centre spacing in dam be 2. 0-10 m, to abutment in dam Centre-to-centre spacing be 1.0-2.0m, often arrange open caisson(2)Spacing be row's open caisson(2)2-3 times of total length.
3. it is according to claim 1 it is a kind of protect Coastal erosion movable permeable spur structure, it is characterised in that it is described Anchor chain(4)Between angle be 50-70 °, anchor chain(4)With anchorage device(3)Between angle be 50-60 °.
4. it is according to claim 1 it is a kind of protect Coastal erosion movable permeable spur structure, it is characterised in that it is described Inlet opening penetrates open caisson(2)Inwall and inlet opening a diameter of 10-30cm.
5. it is according to claim 1 it is a kind of protect Coastal erosion movable permeable spur structure, it is characterised in that it is described Trapezoidal mat(6)Cylindrical hole is provided with, cylindrical hole upper end is provided with the gradient, and permeable hole, open caisson are provided with cylindrical hole(2)Install and fix In trapezoidal mat(6)On cylindrical hole in.
6. it is according to claim 1 it is a kind of protect Coastal erosion movable permeable spur structure, it is characterised in that it is described Open caisson(2), trapezoidal mat(6), anchorage device(3)Material be reinforced concrete, reinforcing bar and anchor in reinforced concrete Chain(4)On be equipped with erosion shield.
7. it is according to claim 6 it is a kind of protect Coastal erosion movable permeable spur structure, it is characterised in that it is described The composition and its weight portion of erosion shield be:Epoxy acrylic resin 40-45 parts, 3-6 parts of benzoic acid dibutylester, acrylic acid hydroxyl Ethyl ester 5-8 parts, polytetrafluoroethylene (PTFE) 2-3 parts, polyvinyl alcohol 12-15 parts, p methoxy phenol 2-3 parts, take charge of the 0.01-0.02 of benzene 80 Part, 1,3-PD 0.02-0.03 parts.
8. it is a kind of protect Coastal erosion movable permeable spur construction method, it is characterised in that comprise the following steps:
1)By prefabricated reinforced concrete open caisson(2)Engineering marine site is transported to by way of transportation by lighter and lifting are combined;
2)By open caisson(2)The sea-floor relief leveling of placement position, leveling area is beaten more than the area of base of open caisson by spacing size The trapezoidal mat of stake fixation(6)With anchorage device(3);
3)Open caisson(2)It is put into water, is fixed on trapezoidal mat(6)On, remove lifting appliance;
4)Open caisson(2)Lower end passes through anchor chain(4)With anchorage device(3)Connection, open caisson(2)Upper end passes through anchor chain(4)It is heavy with adjacent Well(2)Connection forms groynes group, and groynes group one end is fixed by the sea, and some row's groynes groups form groynes group.
9. it is according to claim 8 it is a kind of protect Coastal erosion movable permeable spur construction method, it is characterised in that Groynes group construction using first downstream upstream again, the construction of groynes group using attacking and occupying method, each open caisson using first backshore, then before Shore, last interior shore, advances to sea successively.
CN201611251030.5A 2016-12-30 2016-12-30 Protect the movable permeable spur structure and construction method of Coastal erosion Active CN106677121B (en)

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CN106677121B CN106677121B (en) 2018-12-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108755570A (en) * 2018-06-04 2018-11-06 李国松 A kind of large-scale flowing floods rescue system of reply
WO2022016868A1 (en) * 2020-09-17 2022-01-27 中国长江三峡集团有限公司 Spur dike with movable water-permeable piles and method for operating same

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CN104480865A (en) * 2014-12-24 2015-04-01 中铁大桥局集团有限公司 Precise positioning method for large-scale steel open caisson
CN204456157U (en) * 2014-12-24 2015-07-08 中铁大桥局集团有限公司 A kind of major diameter combination cable system for open caisson foundation location

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060023036A (en) * 2004-09-08 2006-03-13 송병무 Marine structure and construction method thereof
CN1818231A (en) * 2006-03-10 2006-08-16 陈明宪 Water-ponding construction and its facilities
CN201459674U (en) * 2009-09-01 2010-05-12 黄河水利委员会黄河水利科学研究院 PHC tubular pile dam
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN108755570A (en) * 2018-06-04 2018-11-06 李国松 A kind of large-scale flowing floods rescue system of reply
WO2022016868A1 (en) * 2020-09-17 2022-01-27 中国长江三峡集团有限公司 Spur dike with movable water-permeable piles and method for operating same
GB2607195A (en) * 2020-09-17 2022-11-30 China Three Gorges Corp Spur dike with movable water-permeable piles and method for operating same

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