Three-dimensional reinforced bank protection structure suitable for coral sand field

Abstract

The utility model discloses a three-dimensional reinforced bank protection structure suitable for a coral sand site, belongs to the technical field of constructional engineering, and aims to solve the technical problems that a traditional bank protection structure in the prior art is high in construction difficulty and easily affects marine ecology. The fixing device comprises a plurality of fixing units which are overlapped and arranged in a staggered mode. Each fixing unit comprises a gabion box and a geogrid, and the gabion box is filled with coral reefs; geotechnical cloth is arranged between the gabion gabion net and the geogrid, and the gabion gabion net and the geogrid are connected through a plurality of ribbons I; the non-porous geotechnical cloth is arranged on the inner side of the geogrid, and the non-porous geotechnical cloth is filled with coral sand. The three-dimensional reinforced bank protection structure suitable for the coral sand site is small in material consumption, easy and convenient to construct, flexible in modeling and layout, high in stability and high in utilization value.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a three-dimensional reinforced bank protection structure suitable for coral sand sites. Background Art

[0002] The development and utilization of marine resources is one of the important directions of development today, and the scale of marine engineering construction is increasing day by day. As the South China Sea is located in the tropics and subtropics, the warm and humid ocean currents and climate have nurtured a large number of corals, shellfish and other organisms. After a long period of evolution, the remains of these organisms have been deposited in the sea to form coral reefs and coral sand.

[0003] In recent years, the construction of related marine islands, reefs and coastal projects has been gradually promoted. However, since some islands and reefs are far away from the mainland, construction materials and site resources are very scarce. These reefs and sand have become an important source of materials for island and reef construction. Under the erosion of waves, the usable area of ​​​​the island and reef sites has been affected or even destroyed. The current challenges facing construction are to adopt appropriate revetment structures to resist the invasion of waves and increase the safe and usable area of ​​nearshore sites.

[0004] There are various forms of revetment structures, the most common type is the breakwater. Traditional breakwaters are generally used at docks where ships need to dock. Breakwaters usually use huge angular stones sunk into the sea to form a near-shore barrier. However, for ocean islands and reefs far away from the mainland, large-scale construction of such facilities is both time-consuming and labor-intensive, and cement binders will affect the fragile marine ecology. On the contrary, the use of green and low-carbon reinforced soil technology can save costs and protect the marine environment.

[0005] Reinforcement technology constructs a series of related geotechnical structures through specific geotechnical materials, and improves the bearing capacity and stability of reinforced soil structures by giving full play to the tensile properties of reinforcement materials. At present, the construction of island and reef projects is in its early stages, and the relevant infrastructure and supporting facilities are still not mature enough. The cost of island and reef sites is very high, and the available area is limited under the invasion of waves and tides. Using the abundant coral reef sand resources near the islands and reefs to design bank reinforcement structures can significantly reduce the invasion of waves on island and reef sites, while increasing the usable area of ​​island and reef sites.

[0006] Reinforcement technology has significant advantages such as low cost, low energy consumption, high efficiency, green and low carbon. In addition, reinforcement technology is relatively flexible and can be combined with different reinforcements to form a reinforced structure with specific functions.

[0007] Therefore, developing reinforced revetment structures suitable for coral sand sites on ocean islands and reefs is an important way to improve the current level of island and reef infrastructure construction, site safety and utilization. Utility Model Content

[0008] The purpose of the utility model is to provide a three-dimensional reinforced revetment structure suitable for coral sand sites, so as to solve the technical problems in the prior art that the traditional revetment structure is difficult to construct and is easy to affect the marine ecology.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] The utility model provides a three-dimensional reinforced revetment structure suitable for coral sand sites, comprising a plurality of mutually superimposed and staggered fixed units;

[0011] The fixing unit includes a gabion gabion mesh and a geogrid, wherein the gabion gabion mesh is filled with coral reef stones; a geotextile is arranged between the gabion gabion mesh and the geogrid, and the geotextile is connected by a plurality of tie ties;

[0012] A non-porous geotextile is arranged inside the geogrid, and coral sand is filled in the non-porous geotextile.

[0013] Optionally or preferably, the gabion cage comprises a coarse rib frame and a fine rib frame;

[0014] The coarse rib frame and the fine rib frame are both made of high-strength and corrosion-resistant steel, so that they can resist the erosion of seawater; the geotextile is made of high-strength and water-permeable materials, so that it can withstand a certain tension and prevent the loss of coral sand particles; the cable tie is made of high-strength plastic for easy bundling; the gabion cage is filled with coral reefs with large mass and volume, so that it can maintain structural stability under its own weight and resist the impact of waves; and the coral reefs and coral sand can be obtained locally, reducing transportation costs and damage to the marine environment.

[0015] The geotextile is provided with a plurality of preset holes, and the tie band passes through the preset holes and connects the coarse rib frame and the geogrid.

[0016] Optionally or preferably, the plurality of fixing units are connected with each other via a plurality of cable ties.

[0017] Cable tie 2 is the same as cable tie 1, both are made of high-strength plastic, which is easy to bundle; by connecting multiple fixing units through cable tie 2, the overall stability and wave impact resistance of the structure can be enhanced.

[0018] Optionally or preferably, the geogrid comprises ribs and a plurality of nodes arranged on the ribs; the nodes are used to improve the friction performance and interlocking ability between the geogrid and the coral sand.

[0019] The ribs and nodes are made of high-strength steel plastic material with high roughness and corrosion resistance, which enables the geogrid to form good interlocking and friction with the coral sand.

[0020] Optionally or preferably, one end of the cable tie is connected to the thick rib frame, and the other end is connected to a node or a rib.

[0021] Based on the above technical solution, the utility model can at least produce the following technical effects:

[0022] The utility model provides a three-dimensional reinforced revetment structure suitable for coral sand sites, which can be designed and constructed by using local materials, saving the construction cost of island and reef projects. The revetment structure is constructed using green and low-carbon geotechnical materials, which has little pollution to the ocean and island and reef environment, and has the advantages of good effect, simple construction, and flexible use;

[0023] In addition, the structure has multiple uses. It can be used as a revetment structure to resist the erosion of the coral sand site by wind and waves, and can also be used as a reinforced structure to increase the use area and bearing capacity of the nearshore site. By constructing revetment structures of different scales, it can meet the construction needs of different coastal coral sand sites, which is of great significance to promoting the construction of marine island and reef projects in my country and the resilience and safety of coral sand sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the planar structure of the three-dimensional reinforced bank protection structure suitable for coral sand sites of the utility model;

[0025] Figure 2 yes Figure 1 Middle AA section;

[0026] Figure 3 This is a construction schematic diagram of a three-dimensional reinforced bank protection structure suitable for coral sand sites according to the utility model;

[0027] Figure 4 The utility model is a schematic diagram of the effect of a three-dimensional reinforced bank protection structure suitable for coral sand sites.

[0028] In the figure: 1. Gabion cage mesh; 101. Coarse rib frame; 102. Fine rib frame; 2. Geogrid; 201. Node; 202. Rib; 3. Geotextile; 301. Preset hole; 4. Tie one; 5. Coral reef; 6. Coral sand; 7. Non-porous geotextile; 8. Tie two. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work belong to the scope of protection of the utility model.

[0030] Embodiment 1

[0031] See also Figure 1 to Figure 2 , a three-dimensional reinforced bank protection structure suitable for coral sand sites, which includes a plurality of fixing units superimposed and staggered.

[0032] In this embodiment, the above-mentioned fixing unit includes a gabion gabion mesh 1 and a geogrid 2 connected to the gabion gabion mesh 1; the gabion gabion mesh 1 is filled with coral reef stones 5 with a large mass and volume, so that it can maintain structural stability under the action of its own weight and resist the impact of waves.

[0033] Furthermore, a geotextile 3 is arranged between the gabion gabion mesh 1 and the geogrid 2, and a plurality of preset holes 301 are arranged on the geotextile 3. The gabion gabion mesh 1 and the geogrid 2 are connected by passing a cable tie 4 through the preset holes 301.

[0034] In this embodiment, the gabion cage 1 includes a coarse rib frame 101 and a fine rib frame 102, and the coarse rib frame 101 and the fine rib frame 102 are both made of high-strength corrosion-resistant steel, and one end of the tie 4 is connected to the above-mentioned gabion cage 1 and the geogrid 2 through the coarse rib frame 101.

[0035] In this embodiment, the geogrid 2 includes ribs 202 and multiple nodes 201 arranged on the ribs 202; the multiple nodes 201 are used to improve the friction performance and interlocking ability between the geogrid 2 and the coral sand 6; wherein the ribs 202 and the nodes 201 are both made of high-strength steel plastic material with high roughness and corrosion resistance.

[0036] A non-porous geotextile 7 is arranged on the inner side of the geogrid 2, and coral sand 6 is filled in the non-porous geotextile 7. In this embodiment, the geotextile 3 and the non-porous geotextile 7 are both made of high-strength and water-permeable materials, so that they can withstand a certain tension and prevent the loss of coral sand particles.

[0037] In this embodiment, the plurality of fixing units are fixed and connected by a cable tie 2 8; both the cable tie 1 4 and the cable tie 2 8 are made of high-strength plastic, which facilitates the bundling operation.

[0038] Embodiment 2

[0039] This embodiment provides a construction method of a three-dimensional reinforced revetment structure suitable for coral sand sites on the basis of the first embodiment, comprising the following steps:

[0040] S1. Clear a flat area for placing the gabion cage 1 in a low wind and wave environment;

[0041] S2, sink the gabion cage 1 filled with coral reef stones 5 into the predetermined position in sequence to ensure that the gabion cage 1 is placed stably;

[0042] S3, clean out the coral sand on the side of the gabion cage 1 close to the site, lay the geotextile 3 and the geogrid 2 evenly, and select a suitable position to punch holes on the side of the geotextile 3 close to the gabion cage 1 to form a preset hole 301;

[0043] S4, use a tie 4 of suitable size to tightly bind the coarse rib frame 101 of the gabion cage 1 with the geogrid 2 and the geotextile 3 through the preset holes 301 to form a stable connection;

[0044] S5, lay the non-porous geotextile 7 on the far right, and backfill the coral sand 6 to the height close to the gabion cage 1 by layered compaction, and reverse the non-porous geotextile 302 and geogrid 2 of the reserved length, and the construction of the first layer of reinforced bank protection structure (N=1) is completed;

[0045] S6. According to the designed slope of the bank protection structure, a layer of gabion gabion mesh 1 is staggered at a certain position, and the upper and lower layers of gabion gabion mesh 1 are tied together by tie ties 4;

[0046] S7, repeat the process from S3 to S6 until the N-1th layer and the Nth layer of reinforced revetment structures are completed and the designed revetment height and slope are reached;

[0047] S8. The geogrid 2 and the non-porous geotextile 7 used for backfilling on the top of the Nth layer are buried in the coral sand at a certain angle and anchored. The construction of the entire three-dimensional reinforced bank protection structure suitable for the coral sand site is completed.

[0048] The present embodiment provides a construction method for a three-dimensional reinforced revetment structure suitable for coral sand sites, which plays an important role in improving the safety and resilience of marine island and reef infrastructure and increasing the utilization area of ​​island and reef coral sand sites.

[0049] The three-dimensional reinforced revetment structure uses local materials and fully utilizes the value of coral reefs 5 and coral sand 6. By using multiple types of reinforcing materials such as gabion cages 1, geogrids 2, and geotextiles 3, it can increase the use area and bearing capacity of the site while resisting wind and waves. In addition, the structure requires small amounts of consumables, is easy to construct, has flexible shapes and layouts, and is highly stable, and has a high utilization value.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional reinforced bank protection structure suitable for coral sand sites, characterized in that: It comprises a plurality of fixing units which are overlapped and staggered; The fixing unit comprises a gabion gabion mesh (1) and a geogrid (2), wherein the gabion gabion mesh (1) is filled with coral reef stones (5); a geotextile (3) is arranged between the gabion gabion mesh (1) and the geogrid (2), and the geotextiles (3) are connected by a plurality of tie bands (4); A non-porous geotextile (7) is arranged inside the geogrid (2), and coral sand (6) is filled inside the non-porous geotextile (7).

2. The three-dimensional reinforced revetment structure suitable for coral sand sites according to claim 1 is characterized in that: The gabion cage (1) comprises a coarse rib frame (101) and a fine rib frame (102); The geotextile (3) is provided with a plurality of preset holes (301), and the tie band (4) passes through the preset holes (301) and connects the coarse rib frame (101) and the geogrid (2).

3. The three-dimensional reinforced revetment structure suitable for coral sand sites according to claim 1, characterized in that: The plurality of fixing units are connected via a plurality of cable ties (8).

4. The three-dimensional reinforced revetment structure suitable for coral sand sites according to claim 2, characterized in that: The geogrid (2) comprises ribs (202) and a plurality of nodes (201) arranged on the ribs (202); the nodes (201) are used to improve the friction performance and interlocking ability between the geogrid (2) and the coral sand (6).

5. The three-dimensional reinforced revetment structure suitable for coral sand sites according to claim 4, characterized in that: One end of the cable tie (4) is connected to the thick rib frame (101), and the other end is connected to a node (201) or a rib (202).

Images