Structure and method for soil filling and land reclamation in marsh mud flat area

Abstract

The invention relates to a marsh mud flat area soil filling and land making structure and method. The structure comprises a plurality of supporting assemblies. The supporting assembly is inserted into the mud flat structure, the mud flat structure comprises a sludge layer, and the supporting assembly penetrates through the sludge layer and is inserted into a pebble bed located below the sludge layer; the multiple supporting assemblies are arranged at intervals. The supporting assembly comprises a plurality of first bamboo supporting columns, second bamboo supporting columns matched with the first bamboo supporting columns and a first filter screen. Every two adjacent first bamboo supporting columns are connected through a second bamboo supporting column. The first filter screen is arranged on one side of the first bamboo supporting column and one side of the second bamboo supporting column and connected with the first bamboo supporting column and the second bamboo supporting column. A plurality of drainage channels penetrating in the arrangement direction of the first bamboo supporting columns are formed in the first bamboo supporting columns, and the drainage channels are arranged at intervals in the height direction of the first bamboo supporting columns; the method is used for constructing the structure. Through the arrangement of the supporting assembly, the device is more environment-friendly, and the problem of agricultural and forestry waste is solved.

Description

Technical Field

[0001] The present disclosure relates to, in particular to, a land reclamation structure and method for filling land in a swampy tidal flat area. Background Art

[0002] With the rapid development of my country's economy, the number of port projects, waterway projects, water conservancy projects and other construction projects has increased rapidly. In the dredging process of various waterways and the construction and expansion of ports, a large amount of silt is usually generated. Special treatment of silt is a high-cost task, which will increase the cost of the project. In areas with lakes, rivers and other water sources, there are mostly agricultural, forestry, grass and other resources nearby, which will generate a large amount of agricultural and forestry waste. How to properly deal with these agricultural and forestry wastes is also an urgent problem to be solved.

[0003] At the same time, my country has a large population base, high population density and tight land resources. There is an urgent need to open up new space for development and construction based on the original land.

[0004] Chinese patent CN205875112U discloses a shallow sea beach transfer measurement platform, comprising: a support column inserted in the beach, the support column passes through the mud layer of the beach and is inserted into the pebble bearing layer below the mud layer; and a platform plate fixedly connected to the top of the support column. The support column is driven into the pebble bearing layer to provide a stable support, and then the platform plate is laid using the support column to provide a transfer measurement platform, which realizes the transfer of the guide point into the construction area, covers the entire measurement area, reduces the distance between the measurement construction area and the guide point, and thus improves the accuracy of the measurement results.

[0005] The above patent still has the following defects:

[0006] The above patent does not use agricultural and forestry wastes, and its supporting columns still use prestressed concrete pipe piles, and it fails to solve the problem of agricultural and forestry wastes; at the same time, because its supporting columns still use prestressed concrete pipe piles, there are still potential problems such as environmental pollution;

[0007] At the same time, because the existing technology is not able to effectively drain the water in the silt, the silt solidifies slowly, which in turn affects the construction speed of land reclamation and the strength of the silt layer.

[0008] In addition, the above-mentioned construction method is relatively cumbersome and cannot be constructed quickly, which is also one of the reasons that affect the construction speed of land reclamation. Summary of the invention

[0009] In order to solve the problems existing in the above-mentioned prior art, the purpose of the present disclosure is to provide a land reclamation structure and method for swampy tidal flat areas, so as to solve the problems that the prior art does not utilize agricultural and forestry wastes, the silt solidification time is slow, and the construction speed is slow.

[0010] The present disclosure discloses a land reclamation structure and method for filling soil in a swampy tidal flat area, comprising a plurality of support components;

[0011] The support assembly is inserted into the tidal flat structure, the tidal flat structure includes a silt layer, the support assembly passes through the silt layer and is inserted into the pebble layer below the silt layer; a plurality of the support assemblies are arranged at intervals;

[0012] The support assembly includes a plurality of first bamboo and wood support columns, matching second bamboo and wood support columns and a first filter screen;

[0013] Two adjacent first bamboo and wood support columns are connected via the second bamboo and wood support column; the first filter is arranged on one side of the first bamboo and wood support column and the second bamboo and wood support column, connected to the first bamboo and wood support column and connected to the second bamboo and wood support column;

[0014] The first bamboo support column is formed with a plurality of drainage channels penetrating along the arrangement direction of the first bamboo support columns, and the plurality of drainage channels are arranged at intervals along the height direction of the first bamboo support column.

[0015] Preferably, the tidal flat structure further comprises an agricultural and forestry waste layer, the agricultural and forestry waste layer is filled on the tidal flat layer, and the agricultural and forestry waste layer comprises straw and rice straw.

[0016] Preferably, the swamp tidal flat area land reclamation structure further comprises a drainage ditch, the drainage ditch is arranged at the bottom of the pebble layer, and a drainage pipe is arranged inside the drainage ditch.

[0017] Preferably, the tidal flat area land filling structure further comprises a second filter screen, and the second filter screen is arranged between the pebble layer and the drainage ditch and is connected to the drainage ditch.

[0018] Preferably, the tidal flat area land filling structure further comprises a plurality of tree branches, which are inserted at both sides of the support assembly, pass through the silt layer and are inserted into the pebble layer below the silt layer.

[0019] The present disclosure also provides a method for constructing a marshland area by filling soil and constructing land, which is used to construct the marshland area by filling soil and constructing land as described above, and comprises the following steps:

[0020] S1. Make support components;

[0021] S2, excavating the swampy tidal flat area to be constructed to form an excavation pit, and setting a drainage ditch and a second filter screen at the bottom of the excavation pit;

[0022] S3, laying a pebble layer at the bottom of the excavated pit, wherein the pebble layer covers the drainage ditch and the second filter screen;

[0023] S4, laying a silt layer on the pebble layer;

[0024] S5. Insert the support assembly in a vertical direction, wherein the support assembly passes through the silt layer and is inserted into the pebble layer below the silt layer.

[0025] Preferably, the method for creating land by filling soil in a swampy tidal flat area further comprises the following steps:

[0026] S6. Laying a layer of agricultural and forestry waste on the sludge layer.

[0027] Preferably, the method for creating land by filling soil in a swampy tidal flat area further comprises the following steps:

[0028] S7. Insert branches on both sides of the support assembly.

[0029] Preferably, the step S1 comprises:

[0030] S101, cross the two second bamboo and wood support columns in an "X" shape, and glue them together at the intersection to form a connecting piece;

[0031] S102, connecting two ends of the connecting piece to two adjacent first bamboo and wood supporting columns;

[0032] S103, disposing a first filter net on one side along the extending direction of the two first bamboo support columns, and connecting the first filter net to the two first bamboo support columns.

[0033] Preferably, the step S2 comprises:

[0034] S201, excavating the marsh tidal flat area to be constructed according to a preset depth to form an excavation pit, and setting a drainage ditch and a second filter screen at the bottom of the excavation pit;

[0035] S202, installing a drainage pipe in the drainage ditch;

[0036] S203. An inclined slope toward the drainage ditch is formed at the bottom of the excavated pit along the direction of the drainage ditch, and the inclined slope is used to guide water to flow in the direction of the drainage ditch.

[0037] The advantages of the land reclamation structure and method for filling land in swampy tidal flats disclosed in the present invention are:

[0038] The present invention discloses a support assembly, which includes a first bamboo support column, a second bamboo support column and a first filter screen. The first bamboo support column and the second bamboo support column are both made of agricultural and forestry waste, which is more environmentally friendly than prestressed concrete pipe piles and solves the problem of agricultural and forestry waste.

[0039] At the same time, the pebble layer and the first filter screen are set to accelerate the discharge of water in the silt layer, promote the solidification of the silt layer, and thus speed up the construction speed of land filling and ensure the strength of the silt layer;

[0040] Furthermore, the method for land reclamation in swampy tidal flat areas disclosed in the present invention promotes the discharge of silt moisture, accelerates the solidification speed of the silt layer, thereby ensuring the strength of the silt layer and accelerating the construction speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of a land reclamation structure for a swampy tidal flat area described in the present disclosure;

[0042] Figure 2 is a schematic structural diagram of the support assembly described in the present disclosure;

[0043] Figure 3 It is a flow chart of the method for creating land by filling soil in a swampy tidal flat area disclosed in the present invention.

[0044] Explanation of the accompanying drawings: 1-support assembly, 11-first bamboo and wooden support column, 111-drainage channel, 12-second bamboo and wooden support column, 13-first filter net, 2-silt layer, 3-pebble layer, 4-agricultural and forestry waste layer, 5-drainage ditch, 6-branches, 7-second filter net. DETAILED DESCRIPTION

[0045] like Figure 1-2 As shown, a land reclamation structure for a swampy tidal flat area disclosed in the present invention comprises a plurality of support components 1;

[0046] The support assembly 1 is inserted into the tidal flat structure, and the tidal flat structure includes a silt layer 2. The support assembly 1 passes through the silt layer 2 and is inserted into the pebble layer 3 located below the silt layer 2. A plurality of support assemblies 1 are arranged at intervals.

[0047] The support assembly 1 includes a plurality of first bamboo and wood support columns 11, matching second bamboo and wood support columns 12 and a first filter screen 13;

[0048] Two adjacent first bamboo support columns 11 are connected via a second bamboo support column 12; a first filter 13 is disposed on one side of the first bamboo support column 11 and the second bamboo support column 12, and is connected to the first bamboo support column 11 and the second bamboo support column 12;

[0049] The first bamboo support column 11 is formed with a plurality of drainage channels 111 penetrating along the arrangement direction of the first bamboo support columns 11 . The plurality of drainage channels 111 are arranged at intervals along the height direction of the first bamboo support columns 11 .

[0050] In one embodiment of the present disclosure, Figure 2As shown, two second bamboo support columns 12 are arranged between two adjacent first bamboo support columns 11, and the two second bamboo support columns 12 are arranged crosswise in an "X" shape, and are respectively connected to the two adjacent first bamboo support columns 11. The arrangement of the second bamboo support columns 12 makes the support assembly 1 stronger, and the strength of the support assembly 1 is ensured. The first bamboo support column 11 and the second bamboo support column 12 can be made of agricultural and forestry waste;

[0051] In order to increase the speed of water drainage, the first bamboo support column 11 is formed with a plurality of drainage channels 111 penetrating along the arrangement direction of the first bamboo support columns 11 , and the plurality of drainage channels 111 are arranged at intervals along the height direction of the first bamboo support columns 11 .

[0052] Specifically, if Figure 1 As shown, the drainage channel 111 penetrates along the arrangement direction of the plurality of first bamboo and wooden support columns 11, and the plurality of drainage channels 111 are spaced apart along the height direction of the first bamboo and wooden support columns 11 to enhance the drainage capacity of the first bamboo and wooden support columns 11. Since the first bamboo and wooden support columns 11 are inserted into the tidal flat structure, part of them are located inside the tidal flat structure, that is, part of the drainage channel 111 is located in the silt layer 2, the pebble layer 3 and the agricultural and forestry waste layer 4 inside the tidal flat structure, and each drainage channel 111 can eventually drain excess water to the pebble layer 3 for discharge.

[0053] Since the first filter screen 13 is arranged on one side of the first bamboo and wooden support column 11 and the second bamboo and wooden support column 12, and is connected to the first bamboo and wooden support column 11 and the second bamboo and wooden support column 12, that is, the first filter screen 13 is also inserted into the tidal flat structure, so that the moisture in the silt layer 2 can be retained while allowing the moisture to be discharged through the first filter screen 13, thereby promoting the solidification of the silt, thereby ensuring the strength of the silt layer 2.

[0054] Figure 1 What is shown is a side view of three groups of support components 1 inserted into the tidal flat structure. The support components 1 are inserted into the tidal flat structure. The tidal flat structure includes a silt layer 2 and a pebble layer 3. The pebble layer 3 is located below the silt layer 2. The support components 1 pass through the silt layer 2 and are inserted into the pebble layer 3 below the silt layer 2. The pebble layer 3 helps to allow excess water in the silt to flow out of the pebble layer 3, promotes the solidification of the silt, and thereby ensures the strength of the silt layer 2.

[0055] Through the arrangement of the first bamboo support column 11 and the second bamboo support column 12, since the first bamboo support column 11 and the second bamboo support column 12 are both made of agricultural and forestry waste, they are more environmentally friendly than prestressed concrete pipe piles and solve the problem of agricultural and forestry waste.

[0056] Furthermore, in order to make better use of agricultural and forestry waste, the swamp tidal flat area filling and land reclamation structure described in the present invention also includes an agricultural and forestry waste layer 4, which is filled on the tidal flat layer. The agricultural and forestry waste layer 4 includes straw and rice straw; the straw and rice straw are laid on the silt layer 2, and the straw and rice straw can absorb moisture in the silt layer 2. Since the agricultural and forestry waste layer 4 is laid on the silt layer 2, the moisture absorbed by the agricultural and forestry waste layer 4 from the silt layer 2 can be evaporated by sunlight, and can also be discharged along the first filter net 13, which promotes the solidification of the silt layer 2, thereby ensuring the strength of the silt layer 2.

[0057] Furthermore, since water will be discharged through the pebble layer 3, in order to improve the drainage capacity of the pebble layer 3 and to utilize this part of water resources, the swamp tidal flat area filling and land reclamation structure described in the present invention also includes a drainage ditch 5, which is arranged at the bottom of the pebble layer 3.

[0058] Furthermore, in order to better guide the water flow, a drain pipe is set in the drain ditch 5, and the outlet of the drain pipe can be connected to the underground sewage pipe to drain the water inside the sludge to the underground sewage pipe, and finally enter the sewage treatment plant for treatment, so as to realize the recycling of sewage.

[0059] By setting the drainage ditch 5, the drainage capacity of the pebble layer 3 is improved, the discharge of water is accelerated, and the solidification of the silt layer 2 is promoted, the strength of the silt is ensured and the construction speed of land filling is accelerated.

[0060] Furthermore, in order to avoid clogging of the drainage ditch 5 , the land reclamation structure for the swampy tidal flat area disclosed in the present invention further includes a second filter screen 7 , which is disposed between the pebble layer 3 and the drainage ditch 5 and is connected to the drainage ditch 5 .

[0061] Furthermore, the swamp tidal flat area filling land reclamation structure described in the present disclosure also includes a plurality of branches 6, which are inserted on both sides of the support component 1, pass through the silt layer 2 and are inserted into the pebble layer 3 located below the silt layer 2.

[0062] The branch 6 is inserted into the pebble layer 3 through the silt layer 2 , and water can enter the pebble layer 3 through the drainage of the branch 6 , and finally the water is discharged through the pebble layer 3 .

[0063] In summary, the excess water in the sludge can be discharged from the marshland land reclamation structure disclosed in the present invention by the following methods:

[0064] 1. Drainage through the pebble layer 3 in direct contact;

[0065] 2. The waste is discharged through the agricultural and forestry waste layer 4 to the first filter screen;

[0066] 3. Drain to the pebble layer 3 through the drainage channel 111 of the first bamboo support column 11;

[0067] 4. Drain water directly through the second filter screen 7 in contact;

[0068] 5. Drain water to the pebble layer 3 through branches 6.

[0069] The moisture in the pebble layer 3 can be discharged from the swampy beach area filling and land reclamation structure described in the present disclosure through the drainage ditch 5 and the second filter screen 7 , and can also be discharged from the swampy beach area filling and land reclamation structure described in the present disclosure through the first filter screen 13 .

[0070] By setting up the first filter screen 13, the agricultural and forestry waste layer 4, the drainage channel 111 and the drainage ditch 5, the discharge of water in the silt layer 2 is accelerated, the solidification of the silt layer 2 is promoted, and the construction speed of land filling is accelerated and the strength of the silt layer 2 is ensured.

[0071] Further, such as Figure 3 As shown, a method for filling land in a swampy tidal flat area disclosed in the present invention comprises the following steps:

[0072] S1, making a support component 1;

[0073] S2, excavating the swampy tidal flat area to be constructed to form an excavation pit, and setting a drainage ditch 5 and a second filter screen 7 at the bottom of the excavation pit;

[0074] S3, laying a pebble layer 3 at the bottom of the excavated pit, wherein the pebble layer 3 covers the drainage ditch 5 and the second filter screen 7;

[0075] S4, laying a silt layer 2 on the pebble layer 3;

[0076] S5. Insert the support assembly 11 along the vertical direction, wherein the support assembly 11 passes through the silt layer 2 and is inserted into the pebble layer 3 below the silt layer 2 .

[0077] Furthermore, the method for land reclamation in a swampy tidal flat area disclosed in the present invention further comprises the following steps:

[0078] S6. Laying an agricultural and forestry waste layer 4 on the sludge layer 2.

[0079] Furthermore, the method for land reclamation in a swampy tidal flat area disclosed in the present invention further comprises the following steps:

[0080] S7, inserting branches 6 on both sides of the support assembly 1.

[0081] Further, step S1 includes:

[0082] S101, cross the two second bamboo support columns 12 in an "X" shape, and glue them together at the intersection to form a connecting piece;

[0083] S102, connecting two ends of the connecting piece to two adjacent first bamboo and wood supporting columns 11;

[0084] S103 , disposing a first filter net 13 along one side of the extending direction of the two first bamboo support columns 11 , and connecting the first filter net 13 to the two first bamboo support columns 11 .

[0085] Further, step S2 includes:

[0086] S201, excavating the swampy tidal flat area to be constructed according to a preset depth to form an excavation pit, and setting a drainage ditch 5 and a second filter screen 7 at the bottom of the excavation pit;

[0087] S202, installing a drainage pipe in the drainage ditch 5;

[0088] S203 . An inclined slope toward the drainage ditch 5 is formed at the bottom of the excavated pit along the direction of the drainage ditch 5 . The inclined slope is used to guide water to flow toward the drainage ditch 5 .

[0089] By setting an inclined slope at the bottom of the excavation pit, it is convenient for water to flow toward the drainage ditch, which speeds up the drainage and solidification of the silt, thereby ensuring the strength of the silt layer.

[0090] The method for land reclamation in swampy tidal flat areas disclosed in the present invention promotes the discharge of silt moisture, accelerates the solidification speed of the silt layer, thereby ensuring the strength of the silt layer and accelerating the construction speed.

[0091] In the description of the present disclosure, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0092] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present disclosure.

Claims

1. A land reclamation structure for a swampy tidal flat area, characterized in that: It comprises a plurality of supporting components (1); The support assembly (1) is inserted into a tidal flat structure, the tidal flat structure comprises a silt layer (2), the support assembly (1) passes through the silt layer (2) and is inserted into a pebble layer (3) located below the silt layer (2); a plurality of the support assemblies (1) are arranged at intervals; The support assembly (1) comprises a plurality of first bamboo and wood support columns (11), matching second bamboo and wood support columns (12) and a first filter screen (13); Two adjacent first bamboo support columns (11) are connected via the second bamboo support column (12); the first filter net (13) is arranged on one side of the first bamboo support column (11) and the second bamboo support column (12), and is connected to the first bamboo support column (11) and the second bamboo support column (12); The first bamboo support column (11) is formed with a plurality of drainage channels (111) penetrating along the arrangement direction of the first bamboo support columns (11), and the plurality of drainage channels (111) are arranged at intervals along the height direction of the first bamboo support columns (11).

2. The land reclamation structure for swampy tidal flats according to claim 1 is characterized in that: The beach structure further comprises an agricultural and forestry waste layer (4), the agricultural and forestry waste layer (4) is filled on the beach coating layer, and the agricultural and forestry waste layer (4) comprises straw and rice straw.

3. The land reclamation structure for swampy tidal flats according to claim 1 is characterized in that: It also comprises a drainage ditch (5), wherein the drainage ditch (5) is arranged at the bottom of the pebble layer (3), and a drainage pipe is arranged inside the drainage ditch (5).

4. The land reclamation structure for swampy tidal flats according to claim 3 is characterized in that: It also comprises a second filter screen (7), wherein the second filter screen (7) is arranged between the pebble layer (3) and the drainage ditch (5) and is connected to the drainage ditch (5).

5. The land reclamation structure for swampy tidal flats according to claim 1 is characterized in that: It also comprises a plurality of branches (6), which are inserted on both sides of the support assembly (1), pass through the silt layer (2) and are inserted into the pebble layer (3) located below the silt layer (2).

6. A method for constructing land by filling soil in a swampy tidal flat area, used for constructing a swampy tidal flat area land by filling soil in a swampy tidal flat area as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1, making a support assembly (1); S2, excavating the swampy tidal flat area to be constructed to form an excavation pit, and setting a drainage ditch (5) and a second filter screen (7) at the bottom of the excavation pit; S3, laying a pebble layer (3) at the bottom of the excavated pit, wherein the pebble layer (3) covers the drainage ditch (5) and the second filter screen (7); S4, laying a silt layer (2) on the pebble layer (3); S5. Insert the support assembly (11) in a vertical direction, wherein the support assembly (11) passes through the silt layer (2) and is inserted into the pebble layer (3) located below the silt layer (2).

7. The method for creating land by filling soil in a swampy tidal flat area according to claim 6, characterized in that: The following steps are also included: S6. Laying a layer of agricultural and forestry waste (4) on the sludge layer (2).

8. The method for creating land by filling soil in a swampy tidal flat area according to claim 7, characterized in that: The following steps are also included: S7, inserting tree branches (6) on both sides of the support assembly (1).

9. The method for creating land by filling soil in a swampy tidal flat area according to claim 1, characterized in that: The step S1 comprises: S101, cross the two second bamboo support columns (12) in an "X" shape, and glue them together at the intersection to form a connecting piece; S102, connecting two ends of the connecting piece to two adjacent first bamboo and wood supporting columns (11); S103, arranging a first filter net (13) along one side of the extension direction of the two first bamboo support columns (11), and connecting the first filter net (13) to the two first bamboo support columns (11).

10. The method for creating land by filling soil in a swampy tidal flat area according to claim 1, characterized in that: The step S2 comprises: S201, excavating the swampy tidal flat area to be constructed according to a preset depth to form an excavation pit, and setting a drainage ditch (5) and a second filter screen (7) at the bottom of the excavation pit; S202, installing a drainage pipe in the drainage ditch (5); S203. An inclined slope is formed at the bottom of the excavated pit along the direction of the drainage ditch (5) toward the drainage ditch (5), and the inclined slope is used to guide water to flow in the direction of the drainage ditch (5).

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