Bagged sand artificial island drainage system and drainage method

Abstract

The invention discloses a bagged sand artificial island drainage system and a drainage method. Comprising a bagged sand protection slope evenly laid on the periphery of a sand beach of the artificial island, a drilling platform oil and gas facility is arranged in the center of the artificial island, and a plurality of water collecting wells, a second seepage isolation wall and a first seepage isolation wall are evenly arranged on the artificial island and located on the periphery of the oil and gas facility. A circle of wave wall is vertically arranged on the artificial island between the first seepage isolation wall body and the bagged sand protection slope in an end-to-end connection mode, and seepage water guide strips are connected to the two ends of the water collecting well, so that water in the artificial island can be effectively blocked through the arrangement, seepage of the water in the horizontal direction is avoided, and the service life of the artificial island is prolonged. The water collecting well is arranged in the artificial island to serve as a temporary water storage facility, when the height of the water level in the water collecting well exceeds the laying height of the permeable water guide strips, water can flow to the wave wall along the permeable water guide strips to be discharged, soil seepage is effectively avoided, and the soil structure stability of the artificial island is improved.

Description

Technical Field

[0001] The invention relates to the technical field of artificial island drainage, and in particular to a bagged sand artificial island drainage system and a drainage method. Background Art

[0002] Currently, when oil is extracted at sea, artificial islands can be built in coastal areas close to the land or in shallow waters in the ocean, and some oil extraction facilities can be transferred from the offshore drilling platform to the artificial island for operation. By building artificial islands, not only the high cost of building offshore platforms can be saved, but also a lot of time for personnel to go on and off the platform by boat can be saved, which effectively reduces the cost of oil extraction and the risk of offshore operations, and has great economic and strategic value.

[0003] At present, artificial islands use blown fill sand as the foundation during their construction. The embankment structure of the artificial island and the filling area are mainly made of fine sand. After construction, the surface water of the artificial island usually overflows on the surface of the artificial island through surface runoff. However, some problems are still exposed in the actual drainage process through the above-mentioned runoff drainage method.

[0004] Since the main filling material of the artificial island is blown fill sand, it has poor grading, large permeability coefficient and uneven density. The characteristics of the blown fill material are prone to seepage damage, which will cause soil loss on the island and damage the structure. Water will cut down the island surface under the seepage, which will also affect the flatness of the island surface. The lost soil is prone to cause the island to move under the action of wind and ocean currents. In view of the problems encountered in the current drainage process of artificial islands, it is necessary to improve and optimize the drainage system of bagged sand artificial islands. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a drainage system and drainage method for an artificial island with bagged sand, which has the characteristics of effectively avoiding seepage damage to the blown sand foundation and improving the stability of the artificial island foundation.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a drainage system for an artificial island of bagged sand, comprising a bagged sand protection slope evenly laid on the periphery of the artificial island beach, a drilling platform oil and gas facility arranged in the center of the artificial island, a plurality of water collection wells evenly arranged on the periphery of the oil and gas facility, a side of the water collection well close to the oil and gas facility is located under the ground of the artificial island and is vertically arranged end to end with a circle of second seepage-proof walls, a side of the water collection well away from the oil and gas facility is located under the ground of the artificial island and is vertically arranged end to end with a circle of first seepage-proof walls, a circle of wave-breaking walls is vertically arranged end to end on the artificial island between the first seepage-proof wall and the bagged sand protection slope, both ends of the water collection well are connected with infiltration water guide strips, the infiltration water guide strips respectively penetrate the second seepage-proof wall, the infiltration water guide strips and the side of the wave-breaking wall for infiltration and transportation of water, the outer wall of the infiltration water guide strip is provided with a protective pipe, a lifting assembly is provided on one side of the protective pipe, and the lifting assembly is used to lift the height of the protective pipe and the infiltration water guide strip to facilitate water transportation.

[0007] As a preferred technical solution of the drainage system of a bagged sand artificial island of the present invention, a plurality of second auxiliary water guide strips are evenly laid under the ground of the artificial island on the side of the second seepage-proof wall facing the oil and gas facilities. The height of the second auxiliary water guide strip at one end close to the oil and gas facilities is higher than that at the other end, and a lifting beam is arranged below the second auxiliary water guide strip.

[0008] As a preferred technical solution of the bagged sand artificial island drainage system of the present invention, a plurality of reinforcing ribs are evenly arranged on both sides of the first seepage-proof wall, and the reinforcing ribs are vertically arranged inside the soil.

[0009] As a preferred technical solution of the drainage system of an artificial island with bagged sand of the present invention, a plurality of first auxiliary water guide strips are evenly arranged in a circle on a horizontal plane on the outside of the water collection well and located inside the soil. One end of the first auxiliary water guide strip extends to the water collection well and is used to transport water in the soil to the water collection well.

[0010] As a preferred technical solution of the drainage system of a bagged sand artificial island of the present invention, the water collection well adopts a three-section hollow component, the bottom and top of the water collection well adopt a water-isolating concrete structure, and the middle of the water collection well adopts a water-conducting porous structure.

[0011] As a preferred technical solution of the drainage system of a bagged sand artificial island of the present invention, the infiltration water guide strips and the second auxiliary water guide strips can be laid in several layers in the vertical direction of the artificial island.

[0012] As a preferred technical solution of the drainage system of an artificial island of bagged sand of the present invention, a plurality of water grooves are evenly opened on the side surface of the protective pipe, and a masking tongue is arranged on the outside of the water groove. The masking tongue is an arc-shaped sheet component connected to the protective pipe at one end. The protective pipe is two connectable shells, and locking teeth and locking tongues are fixedly arranged inside the two shells respectively. The protective pipe is spliced ​​and locked by the meshing of the locking teeth and the locking tongue to form a cylindrical component and protect the infiltration water guide strip. The outside of the first auxiliary water guide strip and the second auxiliary water guide strip may also be covered with a protective pipe.

[0013] As a preferred technical solution of the drainage system of an artificial island with bagged sand in the present invention, the lifting assembly includes a lifting frame whose bottom end is vertically inserted into the soil and fixed, and the outer wall of the lifting frame is provided with a lifting cylinder which can be rotated and moved up and down by spiral rotation through a threaded connection, and a connecting cylinder is embedded in the outer wall of the lifting cylinder, and a limiting frame is integrally formed at one end of the connecting cylinder, and a filling cushion layer is also provided on the inner wall of the limiting frame, and the limiting frame is embedded in the outer wall of the protective pipe to limit and fix the protective pipe.

[0014] As a preferred technical solution of the drainage system of a bagged sand artificial island of the present invention, a temperature and humidity detection probe is also arranged on the inner side of the infiltration water guide strip, and the temperature and humidity detection probe is connected to the power supply equipment and the data acquisition platform on the artificial island through a cable.

[0015] As a preferred technical solution of a drainage method of a bagged sand artificial island drainage system of the present invention, the following steps are included: Step 1: First lay a bagged sand protection slope on the beach outside the artificial island, erect a wave-breaking wall in the soil outside the artificial island, arrange several water collection wells at appropriate locations on the artificial island, and lay the infiltration water guide horizontally so that one end of the infiltration water guide passes through the side of the wave-breaking wall for drainage.

[0016] Step 2: Build a second seepage-proof wall in a ring shape around the oil and gas facilities on the artificial island, so that one end of the seepage water guide strip is connected to the second seepage-proof wall to drain water into the water collection well; lay building stones on the first seepage-proof wall, the seepage water guide strip, and the second seepage-proof wall to establish a continuous and fixed filter layer.

[0017] Step 3: evenly lay a number of supporting beams and second auxiliary water guides on the inner side of the second seepage-proof wall, and set a number of first auxiliary water guides along the circumferential direction on the outer side of the water collection well; Step 4: Adjust the horizontality of the infiltration water guide strip. Adjust the height of the connecting tube by rotating the lifting tube, and then adjust the height of the limit frame, the protective tube and the infiltration water guide strip, so that the infiltration water guide strip remains horizontal for drainage.

[0018] Step 5: When it rains on the surface of the artificial island, the water on the inner side of the second seepage-proof wall is transported to the inside of the water collection well through the infiltration water guide strip and the second auxiliary water guide strip. At this time, part of the fresh water on the inner side of the first seepage-proof wall is also transported to the inside of the water collection well through the infiltration water guide strip. However, when the water level inside the water collection well is too high, the water inside the water collection well is transported to the outside of the wave-breaking wall through the infiltration water guide strip to drain the artificial island.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0020] In the present technical solution, a first seepage-proof wall and a second seepage-proof wall are provided to effectively block the water inside the artificial island and prevent water from seeping in the horizontal direction. A water collection well is provided inside the artificial island as a temporary water storage facility. When the water level inside the water collection well exceeds the laying height of the infiltration water guide strip, the water can flow along the infiltration water guide strip to the wave-breaking wall for discharge. The present technical solution effectively avoids soil seepage and improves the stability of the soil structure of the artificial island.

[0021] By arranging a circle of second auxiliary water guide strips on the inner side of the second seepage-proof wall, the heights of the two ends of the second auxiliary water guide strips are inconsistent, which makes it easier to drain water from the electrical equipment area. By laying multiple layers of the first seepage-proof wall, the second seepage-proof wall and the second auxiliary water guide strips inside the artificial island, excess water in the soil can be quickly drained, effectively reducing the water content of the surface area of ​​the artificial island and improving the stability of the soil structure.

[0022] In this technical solution, a protective tube is set on the side of the infiltration water guide strip. The protective tube can protect the infiltration water guide strip while preventing excessive gravity pressure of the soil from causing unsmooth transportation. The structure of the water trough and the shielding tongue piece is convenient for effectively isolating the mud and sand when guiding the water in the soil to the infiltration water guide strip, thereby increasing the effective service life of the infiltration water guide strip.

[0023] By setting up a lifting frame, the infiltration water guide strip has the characteristics of changing its own height and maintaining its own level. The staff can adjust the height of the connecting tube synchronously by rotating the lifting tube, and then adjust the settlement amplitude of the infiltration water guide strip, which makes it easier for the staff to drain the newly filled artificial island and effectively improves the drainage efficiency.

[0024] In this technical solution, a temperature and humidity detection probe is added. The temperature and humidity detection probe can be laid inside the soil to detect soil moisture, which is convenient for staff to understand the moisture content of the soil in various areas of the artificial island and is more convenient for targeted drainage of the artificial island. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the drainage structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of a partial cross-sectional structure of; Figure 3 It is a schematic diagram of the enhanced drainage structure in the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of a partial cross-sectional structure of; Figure 5 It is a schematic diagram of the cross-sectional structure of the lifting frame in the present invention; In the figure: 1. Bag sand protection slope; 2. Wave-breaking wall; 3. First seepage-proof wall; 4. Collection well; 5. Infiltration water guide strip; 6. Second seepage-proof wall; 7. Reinforcement ribs; 8. First auxiliary water guide strip; 9. Second auxiliary water guide strip; 10. Lifting beam; 11. Protection pipe; 12. Lifting frame; 13. Water trough; 14. Masking tongue; 15. Limiting frame; 16. Filling cushion; 17. Locking teeth; 18. Locking tongue; 19. Temperature and humidity detection probe; 20. Lifting cylinder; 21. Connecting cylinder. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example like Figure 1-5 As shown, a bagged sand artificial island drainage system disclosed in the present invention comprises a bagged sand protection slope 1 evenly laid on the periphery of the artificial island beach. The bagged sand protection slope 1 in the technical solution has a slope surface inclination angle set at 15°-45°, and a top width designed to be 5M-15M. The actual adaptive adjustment is made according to the on-site wave conditions and the impact of ocean wind on the island. The drilling platform oil and gas facilities are arranged in the center of the artificial island. A plurality of water collection wells 4 are evenly arranged on the artificial island at the periphery of the oil and gas facilities. In the technical solution, the water collection well 4 can be designed to collect fresh water during rain, or not to collect fresh water during rain. If fresh water is not collected, the height of the infiltration water guide strip 5 can be gradually reduced when it extends toward the wave-breaking wall 2, so that the infiltration water guide strip 5 is more convenient for drainage to the outside. The side of the water collection well 4 close to the oil and gas facilities is located under the ground of the artificial island and is vertically arranged end to end with a circle of second seepage-proof walls 6, which can be made of high-density and void-free polyurethane polymer material, which itself has good corrosion resistance and stability, and has good water-proof ability. The side of the water collection well 4 away from the oil and gas facilities is located under the ground of the artificial island and is vertically arranged end to end with a circle of first seepage-proof walls 3, which can also be made of high-density and void-free polyurethane polymer material; A circle of wave-breaking walls 2 are arranged vertically between the first seepage-proof wall 3 and the bagged sand protection slope 1 on the artificial island. The wave-breaking wall 2 is made of concrete structure to resist external waves and sea breeze. The height of the wave-breaking wall 2 is designed to be above 2m. If the sea breeze in this area is small, the height can be appropriately lowered. Both ends of the water collection well 4 are connected with infiltration water guide strips 5. The infiltration water guide strips 5 are made of porous polyurethane polymer material. When the infiltration water guide strips 5 are designed to be porous inside, water can flow in the pores to facilitate water transportation. The infiltration water guide strips 5 respectively penetrate the second seepage-proof wall 6, the infiltration water guide strips 5 and the side of the wave-breaking wall 2 for infiltration and transportation of water. The outer wall of the infiltration water guide strip 5 is provided with a protective pipe 11. The protective pipe 11 is used to play a role in structural reinforcement to prevent the infiltration water guide strip 5 from being squeezed under soil pressure and the water transportation efficiency is too low. A lifting component is provided on one side of the protective pipe 11. The lifting component is used to lift the height of the protective pipe 11 and the infiltration water guide strip 5 to facilitate water transportation.

[0029] Specifically, a plurality of second auxiliary water guide strips 9 are evenly laid on the ground of the artificial island on the side of the second seepage-proof wall 6 facing the oil and gas facilities. The height of one end of the second auxiliary water guide strip 9 close to the oil and gas facilities is higher than that of the other end. A lifting beam 10 is also arranged below the second auxiliary water guide strip 9. In this embodiment, the second auxiliary water guide strip 9 can be made of a porous polyurethane polymer material. The function of the lifting beam 10 is to ensure that both ends of the second auxiliary water guide strip 9 remain inclined toward the water collection well 4 after natural settlement.

[0030] Specifically, a plurality of reinforcing ribs 7 are evenly arranged on both sides of the first seepage-proof wall 3 , and the reinforcing ribs 7 are vertically arranged inside the soil. In this embodiment, the function of the reinforcing ribs 7 is to maintain the structural stability of the vertically designed first seepage-proof wall 3 .

[0031] Specifically, the outer side of the water collection well 4 is located inside the soil and is evenly arranged in a circle on a horizontal plane with a number of first auxiliary water guide strips 8. One end of the first auxiliary water guide strip 8 extends to the water collection well 4 and is used to transport water in the soil to the water collection well 4. In this embodiment, the first auxiliary water guide strip 8 is made of a porous polyurethane polymer material and is used to be laid in the soil to guide water. The first seepage barrier wall 3 further improves the efficiency of water transfer.

[0032] Specifically, the water collection well 4 adopts a three-section hollow component. The bottom and top of the water collection well 4 adopt a water-isolating concrete structure, and the middle part of the water collection well 4 adopts a water-conducting porous structure. In this embodiment, the water collection well 4 is 5m long, 4m wide, 3m deep, and the bottom plate is 20cm thick. The upper 0.5m wall adopts a concrete structure, the middle 1.0m wall adopts a 20cm thick marine engineering polyurethane structure, and the lower 3.5m adopts a concrete structure with a wall thickness of 50cm.

[0033] Specifically, the infiltration water guide strips 5 and the second auxiliary water guide strips 9 may be laid in several layers in the vertical direction of the artificial island. The multi-layer structure in this embodiment may further improve the water transfer efficiency of the artificial island.

[0034] Specifically, a plurality of water grooves 13 are evenly formed on the side surface of the protection tube 11, and a shielding tongue piece 14 is arranged on the outside of the water groove 13. The shielding tongue piece 14 is an arc-shaped sheet-like component connected to the protection tube 11 at one end. The protection tube 11 is two shells that can be spliced ​​together, and locking teeth 17 and locking tongue pieces 18 are fixedly arranged inside the two shells. The protection tube 11 is spliced ​​and locked by the meshing of the locking teeth 17 and the locking tongue pieces 18 to form a cylindrical component and protect the infiltration water guide strip 5. The outside of the first auxiliary water guide strip 8 and the second auxiliary water guide strip 9 A protective pipe 11 may also be provided. In this embodiment, since there are many oil and gas facilities on the artificial island, the staff on the island need to move back and forth in various areas to operate on the island. When the staff are moving on the island, they will inevitably step on the gravel layer above the infiltration water guide strip 5. When the gravel layer is stepped on repeatedly, it will cause excessive pressure in the area and soil compaction, which will cause the gaps in the infiltration water guide strip 5 to be filled with soil and unable to guide water. The staff can install a protective pipe 11 on the water guide strips in each area according to actual needs, and then lay a gravel layer on the ground or cast the road surface.

[0035] Specifically, the lifting assembly includes a lifting frame 12 whose bottom end is vertically inserted into the soil and fixed. The outer wall of the lifting frame 12 is provided with a lifting cylinder 20 that can be rotated and moved up and down by spiral rotation through a threaded connection. The outer wall of the lifting cylinder 20 is provided with a connecting cylinder 21, and one end of the connecting cylinder 21 is integrally formed with a limiting frame 15. The limiting frame 15 in the present technical solution adopts a C-type structure, which is more convenient for the installation and separation of the protective pipe 11. A filling cushion layer 16 is also provided on the inner wall of the limiting frame 15. The limiting frame 15 is fitted on the outer wall of the protective pipe 11 to limit and fix the protective pipe 11. In this embodiment, the artificial island needs to undergo a relatively long period of natural settlement after filling. When the settlement of various areas of the artificial island is inconsistent, staff are required to adjust the height of the infiltration water guide strip 5 to facilitate drainage of the artificial island.

[0036] Specifically, a temperature and humidity detection probe 19 is also provided on the inner side of the infiltration water guide strip 5. The temperature and humidity detection probe 19 is connected to the power supply equipment and the data acquisition platform on the artificial island through cables. In this embodiment, the data is synchronized to the background, which can make it easier for the staff to study the water flow trend of the artificial island.

[0037] Specifically, the method includes the following steps: Step 1: first lay a bagged sand protection slope 1 on the beach outside the artificial island, erect a wave-breaking wall 2 in the soil outside the artificial island, arrange a number of water collection wells 4 at appropriate positions on the artificial island, and lay an infiltration water guide strip 5 horizontally so that one end of the infiltration water guide strip 5 passes through the side of the wave-breaking wall 2 for drainage.

[0038] Step 2: Build a second seepage-proof wall 6 in a ring shape around the oil and gas facilities in the artificial island, so that one end of the seepage water guide strip 5 is connected to the second seepage-proof wall 6 to drain water into the water collection well 4; lay building stones on the first seepage-proof wall 3, the seepage water guide strip 5, and the second seepage-proof wall 6 to establish a continuous and fixed filter layer.

[0039] Step 3: evenly lay a plurality of supporting beams 10 and second auxiliary water guides 9 on the inner side of the second seepage-proof wall 6, and arrange a plurality of first auxiliary water guides 8 along the circumferential direction on the outer side of the water collection well 4; Step 4: Adjust the horizontality of the infiltration water guide bar 5 by rotating the lifting cylinder 20 to adjust the height of the connecting cylinder 21, and then adjust the height of the limit frame 15 and the protective pipe 11 and the infiltration water guide bar 5, so that the infiltration water guide bar 5 remains horizontal for drainage.

[0040] Step 5: When it rains on the surface of the artificial island, the water inside the second seepage-proof wall 6 is transported to the inside of the water collection well 4 through the infiltration water guide strip 5 and the second auxiliary water guide strip 9. At this time, part of the fresh water inside the first seepage-proof wall 3 is also transported to the inside of the water collection well 4 through the infiltration water guide strip 5. However, when the water level inside the water collection well 4 is too high, the water inside the water collection well 4 is transported to the outside of the wave-breaking wall 2 through the infiltration water guide strip 5 to drain the artificial island.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to be a further limitation of the present invention. All equivalent changes made using the contents of the present specification and drawings are within the protection scope of the present invention.

Claims

1. A bagged sand artificial island drainage system, characterized in that: The invention comprises a bagged sand protection slope (1) evenly laid on the periphery of the artificial island beach, a drilling platform oil and gas facility is arranged at the center of the artificial island, and a plurality of water collection wells (4) are evenly arranged on the periphery of the oil and gas facility on the artificial island, the water collection wells (4) are located on the side close to the oil and gas facility and are located under the ground of the artificial island and are vertically arranged end to end and are connected to each other with a circle of second seepage-proof walls (6), the water collection wells (4) are located on the side away from the oil and gas facility and are located under the ground of the artificial island and are vertically arranged end to end and are connected to each other with a circle of first seepage-proof walls (3), and the first seepage-proof walls (3) and the bagged sand protection slope are located on the side close to the oil and gas facility and are vertically arranged end to end and are connected to each other with a circle of first seepage-proof walls (3). A circle of wave-breaking walls (2) are arranged vertically and connected end to end on the artificial island between the slopes (1); both ends of the water collection well (4) are connected to seepage water guide strips (5); the seepage water guide strips (5) respectively penetrate the second seepage-proof wall (6), the seepage water guide strips (5) and the side of the wave-breaking wall (2) for infiltration and transportation of water; the outer wall of the seepage water guide strip (5) is provided with a protective pipe (11); a lifting assembly is provided on one side of the protective pipe (11); the lifting assembly is used to raise the height of the protective pipe (11) and the seepage water guide strip (5) to facilitate water transportation.

2. The bagged sand artificial island drainage system according to claim 1 is characterized by: A plurality of second auxiliary water guide strips (9) are evenly laid on the side of the second seepage-proof wall (6) facing the oil and gas facility and located under the ground of the artificial island. The height of one end of the second auxiliary water guide strip (9) close to the oil and gas facility is higher than that of the other end. A lifting beam frame (10) is also arranged below the second auxiliary water guide strip (9).

3. The drainage system of bagged sand artificial island according to claim 1 is characterized by: A plurality of reinforcing ribs (7) are evenly arranged on both sides of the first seepage-proof wall (3), and the reinforcing ribs (7) are vertically arranged inside the soil.

4. The bagged sand artificial island drainage system according to claim 1 is characterized by: A plurality of first auxiliary water guide strips (8) are evenly arranged in a circular shape on a horizontal plane outside the water collection well (4) and located inside the soil. One end of the first auxiliary water guide strip (8) extends to the water collection well (4) and is used to transport water in the soil to the water collection well (4).

5. The bagged sand artificial island drainage system according to claim 4 is characterized by: The water collection well (4) is a three-section hollow component; the bottom and top of the water collection well (4) are water-isolating concrete structures; and the middle of the water collection well (4) is a water-conducting porous structure.

6. The bagged sand artificial island drainage system according to claim 2 is characterized by: The infiltration water guide strips (5) and the second auxiliary water guide strips (9) may be laid in several layers in the vertical direction of the artificial island.

7. The bagged sand artificial island drainage system according to claim 4 is characterized by: The side surface of the protection tube (11) is evenly provided with a plurality of water-passing grooves (13). A shielding tongue piece (14) is arranged outside the water-passing groove (13). The shielding tongue piece (14) is an arc-shaped sheet-like component connected to the protection tube (11) at one end. The protection tube (11) is two shells that can be spliced ​​together. Locking teeth (17) and locking tongue pieces (18) are fixedly arranged inside the two shells respectively. The protection tube (11) is spliced ​​and locked by the meshing of the locking teeth (17) and the locking tongue pieces (18) to form a cylindrical component and protect the infiltration water guide strip (5). The first auxiliary water guide strip (8) and the second auxiliary water guide strip (9) can also be sleeved with the protection tube (11) outside.

8. The bagged sand artificial island drainage system according to claim 1 is characterized by: The lifting assembly comprises a lifting frame (12) whose bottom end is vertically inserted into the soil for fixing, the outer wall of the lifting frame (12) is provided with a lifting cylinder (20) which can be rotated and moved up and down by means of a screw thread, a connecting cylinder (21) is provided on the outer wall of the lifting cylinder (20), a limiting frame (15) is integrally formed at one end of the connecting cylinder (21), and a filling cushion layer (16) is also provided on the inner wall of the limiting frame (15), the limiting frame (15) is provided on the outer wall of the protective tube (11) for limiting and fixing the protective tube (11).

9. The bagged sand artificial island drainage system according to claim 1, characterized in that: A temperature and humidity detection probe (19) is also provided on the inner side of the infiltration water guide strip (5), and the temperature and humidity detection probe (19) is connected to power supply equipment and a data collection platform on the artificial island via cables.

10. A drainage method for a bagged sand artificial island drainage system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: First, a bagged sand protection slope (1) is laid on the beach outside the artificial island, a wave-breaking wall (2) is erected in the soil outside the artificial island, a number of water collection wells (4) are arranged at appropriate locations on the artificial island, and an infiltration water guide strip (5) is laid horizontally so that one end of the infiltration water guide strip (5) passes through the side of the wave-breaking wall (2) for drainage; Step 2: A second seepage-proof wall (6) is built around the oil and gas facilities in the artificial island, and one end of the seepage guide strip (5) is connected to the second seepage-proof wall (6) to discharge water into the water collection well (4); building stones are laid on the first seepage-proof wall (3), the seepage guide strip (5), and the second seepage-proof wall (6) to establish a continuous and fixed anti-filtration layer; Step 3: evenly laying a plurality of supporting beams (10) and second auxiliary water guides (9) on the inner side of the second seepage-proof wall (6), and arranging a plurality of first auxiliary water guides (8) along the circumferential direction on the outer side of the water collection well (4); Step 4: Adjust the horizontality of the infiltration water guide strip (5), adjust the height of the connecting tube (21) by rotating the lifting tube (20), and then adjust the height of the limit frame (15) and the protective tube (11) and the infiltration water guide strip (5), so that the infiltration water guide strip (5) remains horizontal for easy drainage; Step 5: When it rains on the surface of the artificial island, the water inside the second seepage-proof wall (6) is transported to the inside of the water collection well (4) through the permeable water guide strip (5) and the second auxiliary water guide strip (9). At this time, part of the fresh water inside the first seepage-proof wall (3) is also transported to the inside of the water collection well (4) through the permeable water guide strip (5). However, when the water level inside the water collection well (4) is too high, the water inside the water collection well (4) is transported to the outside of the wave-breaking wall (2) through the permeable water guide strip (5) to drain the artificial island.

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