CN113089566B - Erosion-preventing self-repairing structure and method for sandy coast - Google Patents
Erosion-preventing self-repairing structure and method for sandy coast Download PDFInfo
- Publication number
- CN113089566B CN113089566B CN202110533262.4A CN202110533262A CN113089566B CN 113089566 B CN113089566 B CN 113089566B CN 202110533262 A CN202110533262 A CN 202110533262A CN 113089566 B CN113089566 B CN 113089566B
- Authority
- CN
- China
- Prior art keywords
- sand
- main body
- blocking main
- sand blocking
- conveying groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a sandy coast erosion prevention self-repairing structure which comprises a strip-shaped sand blocking main body, wherein a sand conveying groove is formed in the sand blocking main body, the sand conveying groove is obliquely, penetratingly and extends from one side to the other side of the sand blocking main body, a large opening is formed in one end of the sand conveying groove on one side of the sand blocking main body, a small opening smaller than the large opening is formed in the other side of the sand blocking main body of the sand conveying groove, and the bottom of the large opening is lower than the small opening in height. The invention also discloses a sandy coast erosion prevention and self-repair method. The invention can not only prevent the silt from losing from the high position to the low position of the coast, but also can deposit the silt from the low position to the high position, thereby realizing the erosion prevention and self repair of the sandy coast.
Description
Technical Field
The invention relates to an anti-erosion technology of a sandy coast, in particular to an anti-erosion self-repairing structure and a self-repairing method of the sandy coast.
Background
The coastal erosion phenomenon exists in about 70% of sandy coastlines in China, and the loss of coastal silt is greater than the deposition process under the action of natural force (including wind waves and current tides). The reason is that the elevation of the coast from the sea area to the land area is gradually increased, and under the action of natural forces such as wind waves and the like, silt is easy to run off from a high position to a low position by water flow carrying the sand, and is difficult to deposit from the low position to the high position.
Coastal erosion has great adverse effect on coastal ecological environment and people property, and in order to reduce damage of coastal erosion, traditional protective measures comprise modes of building seawalls, spur dams, submerged dams or artificial sand supplement and the like. In recent years, regarding coastal erosion prevention, the coastal erosion prevention method also has the prior art such as a Chinese invention patent application number of 201921906682.7, a loss sand collecting device for preventing coastal erosion, a movable water permeable spur dike structure with an application number of 201611251030.5 and a construction method, and the prior art is similar to the traditional submerged dike, the loss of silt from a high place to a low place is slowed down through the structure interception function, and the problem of preventing coastal further erosion is solved.
However, the two structures only have the function of intercepting silt at a high place, and the silt is still difficult to deposit from a low place to the high place, so that the eroded coasts need to be repaired in a manual sand supplementing manner, and the cost of repairing the coasts is increased. Therefore, it is of great significance to develop a technology for preventing the sandy coast from further erosion and promoting the self-repair of the sandy coast.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a sandy coast erosion prevention self-repairing structure and a sandy coast erosion prevention self-repairing method, which can not only prevent silt from losing from a high place to a low place of a coast, but also enable the silt to deposit from the low place to the high place, and realize erosion prevention and self repair of the sandy coast.
The purpose of the invention is realized by the following technical scheme:
the sand coast erosion prevention self-repairing structure comprises a strip-shaped sand blocking main body, wherein a sand conveying groove is formed in the sand blocking main body, the sand conveying groove is obliquely communicated and extends from one side to the other side of the sand blocking main body, a large opening is formed in one side of the sand blocking main body by one end of the sand conveying groove, a small opening smaller than the large opening is formed in the other side of the sand blocking main body by the sand conveying groove, and the bottom of the large opening is lower than the small opening.
Preferably, the groove body of the sand conveying groove is provided with an arc-shaped section and a flat straight section, the large opening is connected with the small opening through the arc-shaped section and the flat straight section in sequence, and the groove bottom of the arc-shaped section is inwards concave towards the bottom of the sand blocking main body.
Preferably, the arc segment is a circular arc segment, and the central angle of the circular arc segment is 60 degrees.
Preferably, the horizontal cross section of the sand conveying trough is trapezoidal.
Preferably, the top of the sand transporting groove penetrates through the sand blocking body and forms an opening at the top of the sand blocking body.
Preferably, the thickness of the bottom of the sand conveying trough is thicker from the large opening to the small opening.
Preferably, the sand blocking main body is provided with an anchoring hole penetrating through the sand blocking main body, and the axial direction of the anchoring hole is vertical.
Preferably, vertically extending anchor piles are fitted in the anchor holes.
Preferably, the number of the sand conveying grooves is more than two, and the sand conveying grooves are distributed in the sand blocking main body at intervals along the extending direction of the sand blocking main body; the anchoring holes are positioned on the sand blocking main body between two adjacent sand conveying grooves.
The sand coast erosion prevention self-repairing method adopts the sand coast erosion prevention self-repairing structure, the sand blocking main body is firstly arranged on a sand coast, and the arrangement direction of the sand blocking main body meets the following requirements:
the sand blocking main body extends along the coastline direction of the sandy coast, a large opening of the sand conveying groove faces one side of the sea area of the sandy coast, and a small opening of the sand conveying groove faces one side of the land area of the sandy coast;
and then fixing the sand blocking main body.
Compared with the prior art, the invention has the following beneficial effects:
(1) After the structure is laid on a beach, when water flows to a land area from a sea area (namely, when wind waves blow to the land area), the sand conveying groove is obliquely configured, so that the water flow can be guided conveniently, and by utilizing the form that the notch at one end of the sand conveying groove is large and the notch at the other end of the sand conveying groove is small, the side with the larger section size of a sand conveying channel faces the sea area, the side with the smaller section size faces the land area, and when the water flows through the channel with the gradually narrowed section size, the flow speed can be gradually increased (namely, the beam action), so that the sand-carrying capacity of the water flow is enhanced; on the contrary, when the water flows from the land area to the sea area (i.e. when the sea is moving back), the side of the structure close to the land area is higher than the sand beach and forms a vertical ridge, so that the sand blocking effect is achieved, and the sand is not easy to run off from the land area side to the sea area side.
Because of the circular arc curve that the bottom profile of defeated sand groove and beach junction passes through for being favorable to rivers, silt is carried forward under the rivers effect and is got into defeated sand groove. Through the repeated action of the processes, the problems that under the action of natural forces such as wind waves and the like, silt is easy to run off from a high position to a low position by water flow carrying sand, and is difficult to deposit from the low position to the high position are solved; on the contrary, the silt is easy to deposit from the lower part to the higher part and is difficult to run off from the higher part to the lower part, thereby realizing the purposes of preventing the sandy coast from erosion under the action of natural forces such as wind waves and the like and promoting the self-repairing of the sandy coast with erosion phenomenon.
(2) The arc-shaped section and the flat section which are configured in the invention can ensure that the bed load entering the sand conveying groove is gradually lifted forwards along the arc-shaped curve of the arc-shaped section at the bottom of the sand conveying groove under the action of water flow which gradually enhances the sand-carrying capacity, so that the configuration is more favorable for the sediment to enter the sand conveying groove and then enter the flat section of the sand conveying groove, further pass through the sand conveying groove and be deposited on one side of the structure, which is close to a land area;
(3) The invention has the advantages of simple integral structure, convenient manufacture, simple and convenient construction and installation, high fusion degree with the beach, low manufacturing cost and good application prospect.
Drawings
FIG. 1 is a plan view of a sandy coast erosion prevention self-repairing structure of the present invention;
FIG. 2 is a cross-sectional view of a sandy coast erosion prevention self-repairing structure of the present invention;
FIG. 3 is a schematic cross-sectional view of a sand coast erosion prevention self-repairing construction for multi-level paving applications of the present invention;
fig. 4 is a perspective view of a sand coast erosion prevention self-repairing construction multi-level paving application of the present invention.
In the figure: 1. a sand trap body; 2. a sand conveying trough; 21. a large opening; 22. a small opening; 23. opening the opening; 24. an arc-shaped section; 25. a straight section; 3. an anchoring hole; 4. and (5) anchoring piles.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The erosion prevention self-repairing structure for the sandy coast as shown in fig. 1-4 comprises a strip-shaped sand blocking main body, wherein a sand conveying groove is formed in the sand blocking main body, the sand conveying groove is obliquely and continuously extended from one side of the sand blocking main body to the other side, a large opening is formed at one end of the sand conveying groove on one side of the sand blocking main body, a small opening smaller than the large opening is formed in the other side of the sand blocking main body by the sand conveying groove, and the bottom of the large opening is lower than the small opening.
Through the configuration of the sand conveying groove which is obliquely configured and the large opening and the small opening, the water flow is accelerated due to entering the small opening, so that the sand-carrying capacity of the water flow is enhanced, and the silt at the lower part is easier to enter the large opening, so that the silt at the lower part is easy to convey from the high part, and the silt at the high part is difficult to lose to the lower part, thereby preventing the erosion of a sandy coast; meanwhile, the silt at the lower part is gradually deposited at the higher part, and the self-repair of the beach is realized.
As a preferable mode, the tank body of the sand transporting tank of the embodiment has an arc-shaped section and a flat-straight section, the large opening is connected with the small opening sequentially through the arc-shaped section and the flat-straight section, and the tank bottom of the arc-shaped section is inwards concave towards the bottom of the sand blocking main body. The arc-shaped configuration of the arc-shaped section is more beneficial to the sediment at the lower part to enter the sand conveying groove after entering the large opening, so that the sediment is not blocked by the sand blocking main body; the straight section is positioned at a high position, so that sediment can be deposited more conveniently, a vertical ridge is formed at the high position together with the sand blocking main body, and the sediment at the high position is prevented from running off to a lower position. Specifically, the arc segment of the present example is an arc segment, and the central angle of the arc segment is 60 °. The horizontal cross section of the sand conveying groove is trapezoidal.
Furthermore, in order to make the water flow more easily flow into the sand transporting tank, the top of the sand transporting tank of the embodiment penetrates through the sand blocking body and forms an opening at the top of the sand blocking body, so that the water flow and the silt flow more easily in the sand transporting tank.
In order to form a channel which is gradually lifted in the sand blocking body, the thickness of the bottom of the sand conveying groove of the embodiment is increased from thin to thick along the direction from a large opening to a small opening.
In order to fix the sand blocking main body on the sandy coast more conveniently and simply, the sand blocking main body is provided with an anchoring hole penetrating through the sand blocking main body, and the axial direction of the anchoring hole is vertical. And the anchoring holes are internally provided with anchoring piles which extend vertically. And (4) driving anchoring piles into the anchoring holes to fix the sand blocking main body on the sandy coast.
The sand conveying grooves are more than two and are distributed on the sand blocking main body at intervals along the extending direction of the sand blocking main body; the anchoring hole is positioned on the sand blocking main body between two adjacent sand conveying grooves. So, can the position of high position long-pending sand will be distributed by the dispersion, connect into an organic whole at last. When silt at a high place gradually deposits to the top of the structure, the structure temporarily loses the function, so that the phenomenon that the silt is deposited to the high place without limitation can be avoided, and natural balance is realized.
The sand coast erosion prevention self-repairing method adopts the sand coast erosion prevention self-repairing structure, the sand blocking main body is firstly arranged on a sand coast, and the arrangement direction of the sand coast erosion prevention self-repairing structure meets the following requirements:
the sand blocking main body extends along the coastline direction of the sandy coast, the large opening of the sand conveying groove faces one side of the sea area of the sandy coast, and the small opening of the sand conveying groove faces one side of the land area of the sandy coast;
and then fixing the sand blocking main body. Preferably, anchor piles may be used to secure the sand barrier body.
As shown in figures 3-4, according to the beach condition, the sand coast can be prevented from erosion and self-repaired by adopting a multi-level laying mode.
The embodiments of the present invention are not limited thereto, and according to the above-described embodiments of the present invention, other embodiments obtained by modifying, replacing or combining the above-described preferred embodiments in other various forms without departing from the basic technical idea of the present invention and without conflict between the conventional technical knowledge and conventional means in the art are within the scope of the present invention.
Claims (2)
1. The erosion-proof self-repairing structure for the sandy coast is characterized by comprising a strip-shaped sand blocking main body, wherein a sand conveying groove is formed in the sand blocking main body, the sand conveying groove is obliquely communicated and extends from one side of the sand blocking main body to the other side, a large opening is formed at one end of the sand conveying groove on one side of the sand blocking main body, a small opening smaller than the large opening is formed at the other side of the sand blocking main body by the sand conveying groove, and the bottom of the large opening is lower than the small opening in height; the groove body of the sand conveying groove is provided with an arc-shaped section and a flat section, the large opening is connected with the small opening through the arc-shaped section and the flat section in sequence, and the groove bottom of the arc-shaped section is inwards concave towards the bottom of the sand blocking main body;
the arc section is a circular arc section, and the central angle of the circular arc section is 60 degrees;
the horizontal cross section of the sand conveying groove is trapezoidal;
the top of the sand conveying groove penetrates through the sand blocking main body, and an opening is formed in the top of the sand blocking main body;
the thickness of the bottom of the sand conveying trough is increased from thin to thick along the direction from the large opening to the small opening;
the sand blocking main body is provided with an anchoring hole which penetrates through the sand blocking main body, and the axial direction of the anchoring hole is vertical;
the anchoring holes are internally provided with vertically extending anchoring piles;
the sand conveying grooves are more than two and are distributed in the sand blocking main body at intervals along the extending direction of the sand blocking main body; the anchoring hole is positioned on the sand blocking main body between two adjacent sand conveying grooves.
2. The sandy coast erosion prevention and self-repair method is characterized in that the sandy coast erosion prevention and self-repair structure as claimed in claim 1 is adopted, the sand blocking main body is firstly placed on a sandy coast, and the arrangement direction of the sand blocking main body meets the following requirements:
the sand blocking main body extends along the coastline direction of the sandy coast, a large opening of the sand conveying groove faces one side of the sea area of the sandy coast, and a small opening of the sand conveying groove faces one side of the land area of the sandy coast;
and then fixing the sand blocking main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110533262.4A CN113089566B (en) | 2021-05-17 | 2021-05-17 | Erosion-preventing self-repairing structure and method for sandy coast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110533262.4A CN113089566B (en) | 2021-05-17 | 2021-05-17 | Erosion-preventing self-repairing structure and method for sandy coast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113089566A CN113089566A (en) | 2021-07-09 |
| CN113089566B true CN113089566B (en) | 2022-11-11 |
Family
ID=76665746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110533262.4A Active CN113089566B (en) | 2021-05-17 | 2021-05-17 | Erosion-preventing self-repairing structure and method for sandy coast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113089566B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708521A (en) * | 1987-01-28 | 1987-11-24 | Kocourek Peter C | Beach building block |
| US7029200B1 (en) * | 2004-11-24 | 2006-04-18 | Granger Plastics Company | Shoreline erosion barrier |
| WO2010141849A2 (en) * | 2009-06-05 | 2010-12-09 | James Kohlenberg | System and method for rebuilding a sand beach |
| CN112523161B (en) * | 2020-12-09 | 2022-12-23 | 长沙理工大学 | Device for beach maintenance, wave dissipation and floater collection |
-
2021
- 2021-05-17 CN CN202110533262.4A patent/CN113089566B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113089566A (en) | 2021-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103993587A (en) | Bridge type river and tide water-power and wind-power combined power generation corridor | |
| CN109778798B (en) | Multistage hole pipe weir flow dividing and silt discharging method | |
| CN102733351A (en) | Method for treating river entrance | |
| CN201040840Y (en) | Hydrophilic wave-eliminating breakwater with grid-type structure | |
| CN103397614A (en) | Stone cage check dam used for mountainous area erosion gully control | |
| US8979427B2 (en) | Coastal recovery utilizing repositionable shoal module | |
| CN113089566B (en) | Erosion-preventing self-repairing structure and method for sandy coast | |
| CN112267419A (en) | Automatic dredging, intercepting, sewage discharging and water transporting port on coastal region | |
| CN108221849B (en) | Stepped stress-dividing seawall | |
| CN105464046B (en) | A kind of three-dimensional interlocking ecological revetment brick and its application | |
| CN112081065A (en) | Net cage filling type floating breakwater | |
| JP3197382U (en) | Floating structure | |
| CN203821306U (en) | Flexible anti-scour protection pad | |
| CN104912028A (en) | Circular floating breakwater | |
| CN1380469A (en) | Combined plate-inserting dam and its construction process | |
| CN106939580A (en) | A kind of pipe laying type permeable spur that interlocks | |
| JP2008267103A (en) | Erosion prevention method of seashore and shore embankment block used for same | |
| CN221029894U (en) | Prefabricated breakwater structure suitable for harbour | |
| CN218712588U (en) | A permeable type sheet pile spur dike for sand beach erosion protection | |
| CN216615680U (en) | Excavation type harbor basin, breakwater and T-shaped spur dike structure of seaport engineering | |
| CN114351568B (en) | Ecological diversion pier structure for long-span wading bridge | |
| CN217536844U (en) | Sheet pile gravity combined breakwater | |
| CN218712592U (en) | Floating triangular wave-reducing spur dike | |
| CN116084338B (en) | Method for treating main flow of large-fall large-included-angle canal tributary | |
| CN216664082U (en) | Interlocking combined sheet pile structure for channel shore protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |