A construction system for a carbonated alkali-activated based light soil embankment

Abstract

The application relates to the technical field of road construction, and discloses a construction system of a carbonized alkali-activated base light soil embankment, which comprises an embankment body, a vacuum pump, a carbon dioxide gas tank and a high-pressure micro-mist humidifier. The embankment body comprises a first pouring layer and a second pouring layer, the first pouring layer is provided with a humidity sensor and a pipe group structure, the top of the pipe group structure is provided with a first communication end, the bottom of the pipe group structure is provided with a second communication end, the second pouring layer is arranged on the first pouring layer, and the second pouring layer is provided with a temperature sensor. The vacuum pump and the carbon dioxide gas tank are in communication with the first communication end. The high-pressure micro-mist humidifier is in communication with the second communication end. The application solves the problem of deterioration of alkali-activated materials under dry-wet / frozen-thaw cycles.

Description

Technical Field

[0001] This application relates to the field of road construction technology, specifically to a construction system for a carbonized alkali-activated lightweight soil embankment. Background Technology

[0002] Alkali-activated steel slag cementitious materials have advantages such as low energy consumption, high strength, and high economy. They can be mixed with mud, slag, or foam to form alkali-activated lightweight soil. Furthermore, the synergistic effect of alkali activation and carbonation has been proven to improve the mechanical properties of the substrate. Therefore, this technology has certain application potential in soft soil foundations, roadbeds, and embankments. Existing technologies include methods for filling roadbeds using carbonized and solidified industrial waste slag, which have determined specific methods for the proportioning, filling, carbonization, and curing of alkali-activated industrial waste slag, demonstrating that the synergistic effect of alkali activation and carbonation can greatly improve the strength of the roadbed. However, the above technologies have significant drawbacks in terms of durability. In external environmental climates, the roadbed structure will be subjected to wet-dry and freeze-thaw cycles, but alkali-activated steel slag materials have fewer hydration products and lower particle cementation, making them more susceptible to damage under wet-dry and freeze-thaw cycles than cement. Utility Model Content

[0003] This application provides a construction system for alkali-activated lightweight soil embankments to solve the problem that alkali-activated lightweight soil embankments are easily damaged under wet-dry and freeze-thaw cycles.

[0004] This application provides a construction system for carbonyl alkali-activated lightweight soil embankments, comprising:

[0005] The embankment body includes a first pouring layer and a second pouring layer. A humidity sensor and a pipe assembly structure are installed in the first pouring layer. A first connecting end is provided at the top of the pipe assembly structure, and a second connecting end is provided at the bottom of the pipe assembly structure. The second pouring layer is installed on the first pouring layer, and a temperature sensor is installed in the second pouring layer.

[0006] A vacuum pump and a carbon dioxide tank are both connected to the first connecting end;

[0007] The high-pressure micro-mist humidifier is connected to the second connecting end.

[0008] Beneficial effects: The pipe system simultaneously connects a carbon dioxide tank and a high-pressure micro-mist humidifier. Carbon dioxide is injected from the top to enhance the carbonization of the alkali-activated material, while water mist is introduced from the bottom to maintain optimal curing humidity. A vacuum pump connected to the top pipe allows for verification of the geomembrane's sealing performance during both construction and operation phases (by comparing changes in vacuum levels), preventing external moisture erosion. Humidity sensors are placed in the first pouring layer, and temperature sensors in the second pouring layer, accurately locating environmental risk points.

[0009] In one alternative implementation, it further includes:

[0010] A pair of metal plates are respectively disposed on two opposite sides of the second casting layer, and steel fibers are disposed in the first casting layer;

[0011] The power source includes a positive terminal and a negative terminal, the positive terminal being electrically connected to one of the metal plates and the negative terminal being electrically connected to the other metal plate.

[0012] Beneficial effects: By incorporating steel fibers into the first pouring layer and pre-embedding a metal plate in the second pouring layer, a conductive circuit can be formed. When electricity is applied, Joule heating is generated, enabling automatic de-icing of the road surface in winter and accelerating strength formation during the curing period. Directly utilizing the embankment's own conductivity for heating is more energy-efficient than external heat sources, while also ensuring uniform temperature distribution and preventing localized overheating that could damage the structure.

[0013] In one alternative implementation, it further includes:

[0014] The condensing dehumidifier and the spiral grouting pump are both connected to the second connecting end.

[0015] Beneficial effects: Condensing dehumidifiers can handle dehumidification in high humidity conditions, while high-pressure micro-mist humidifiers can handle humidification in dry conditions. After geomembrane failure, high-strength cement grout can be injected using a spiral grouting pump to form a reinforced skeleton, repair cracks, and improve load-bearing capacity.

[0016] In one alternative implementation, it further includes:

[0017] The data collector is electrically connected to the temperature sensor and the humidity sensor, respectively;

[0018] The controller is electrically connected to the vacuum pump, the high-pressure micro-mist humidifier, the condenser dehumidifier, the power supply, and the spiral grouting pump, respectively. The controller is adapted to control the switching on and off of the vacuum pump, the high-pressure micro-mist humidifier, the condenser dehumidifier, the power supply, and the spiral grouting pump based on the temperature and humidity information obtained by the data collector.

[0019] Beneficial effects: It can achieve automatic power-on de-icing, reducing the risk of freeze-thaw cycles; it can automatically start and stop dehumidification / humidification equipment; and it can also achieve automatic grouting reinforcement, preventing structural deterioration.

[0020] In one optional implementation, the embankment body further includes:

[0021] Mixing piles;

[0022] A crushed stone layer is placed on the mixing pile, and the first pouring layer is placed on the crushed stone layer.

[0023] Beneficial effects: By reinforcing soft soil foundations with mixing piles and draining and preventing siltation with gravel layers, the bearing capacity of the foundation can be improved, and uneven settlement and groundwater erosion can be effectively prevented when widening embankments.

[0024] In one alternative embodiment, both opposite sides of the first and second pouring layers are provided with a stepped structure.

[0025] Beneficial effects: The stepped interface design increases the contact area between the new and old embankments, suppressing shear displacement and longitudinal cracks; the stepped structure extending to the clay edging enhances lateral restraint and ensures long-term coordinated deformation.

[0026] In one optional embodiment, the pipe assembly structure includes:

[0027] Multiple first, second, and third pipes are provided, and the first, second, and third pipes intersect each other and are interconnected.

[0028] Beneficial effects: The first, second and third pipes can form a three-dimensional grid, ensuring that carbon dioxide, water mist and slurry are evenly diffused to the entire cross section of the embankment, while the pipe network itself improves the overall shear strength.

[0029] In one alternative embodiment, a clay layer is provided on at least one side of the first casting layer and the second casting layer.

[0030] In one optional embodiment, geotextile is provided to cover the periphery of the first and second pouring layers, and a first geomembrane is provided between the geotextile and the periphery of the first and second pouring layers.

[0031] In one alternative embodiment, a second geomembrane is provided on the top surface of the second pouring layer, and between the clay layer and the first and second pouring layers.

[0032] Beneficial effects: The clay layer can be constructed as a clay edging, thereby providing an ecological barrier and mechanical protection, while the geotextile provides puncture-proof buffer; the first geomembrane is waterproof and extends to the sealed water trough to form a water seal, and the second geomembrane also serves as a waterproof layer for the road surface. The three work together to block external water vapor erosion and extend the structural life. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the construction system of a carbonized alkali-activated lightweight soil embankment according to an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the pipe assembly structure in an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. First pouring layer; 2. Second pouring layer; 3. Pipe assembly structure; 4. Second geomembrane; 5. Geotextile; 6. Humidity sensor; 7. Temperature sensor; 8. Power supply; 9. Data collector; 10. Metal plate; 11. Step structure; 12. Sealed water tank; 13. Negative pressure container; 14. Vacuum pump; 15. Spiral grouting pump; 16. High-pressure micro-mist humidifier; 17. Condensation dehumidifier; 18. Crushed stone layer; 19. Mixing pile; 20. Clay layer; 21. Existing embankment; 22. Carbon dioxide gas cylinder. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] The following is combined Figures 1 to 2 This describes an embodiment of the present application.

[0040] According to an embodiment of this application, a construction system for a carbonized alkali-activated lightweight soil embankment is provided, including an embankment body, a vacuum pump 14, a carbon dioxide tank 22, and a high-pressure micro-mist humidifier 16. The embankment body includes a first pouring layer 1 and a second pouring layer 2. A humidity sensor 6 and a pipe assembly structure 3 are installed within the first pouring layer 1. A first connecting end is provided at the top of the pipe assembly structure 3, and a second connecting end is provided at the bottom of the pipe assembly structure 3. The second pouring layer 2 is disposed on the first pouring layer 1, and a temperature sensor 7 is installed within the second pouring layer 2. The vacuum pump 14 and the carbon dioxide tank 22 are both connected to the first connecting end. The high-pressure micro-mist humidifier 16 is connected to the second connecting end.

[0041] It should be noted that the embankment body can be set on one side of the existing embankment 21 to form a widened embankment, and the connection between the widened embankment and the existing embankment 21 can be set as a stepped structure 11. Alternatively, a completely new embankment body can be built directly.

[0042] Optionally, the thickness of the second pouring layer 2 is 0.3m to 0.5m.

[0043] In this embodiment, a carbon dioxide tank 22 and a high-pressure micro-mist humidifier 16 are simultaneously connected via a pipe assembly structure 3. Carbon dioxide is injected from the top to complete the alkali-activated carbonization enhancement of the material, while water mist is input from the bottom to maintain optimal curing humidity. A vacuum pump 14 is connected to the top pipe, allowing for verification of the geomembrane's sealing performance (by comparing changes in vacuum level) during both construction and operation phases, preventing external moisture erosion. A humidity sensor 6 is placed in the first pouring layer 1, and a temperature sensor 7 is placed in the second pouring layer 2 to accurately locate environmental risk points.

[0044] In one embodiment, the system further includes a pair of metal plates 10 and a power source 8. The pair of metal plates 10 are respectively disposed on two opposite sides of the second casting layer 2, and steel fibers are disposed within the first casting layer 1. The power source 8 includes a positive electrode and a negative electrode, the positive electrode being electrically connected to one of the metal plates 10 and the negative electrode being electrically connected to the other metal plate 10.

[0045] It should be noted that the metal plate 10 is connected to the power supply 8 by a wire, and the material of the first pouring layer 1 is slag and water, steel slag, water glass, EPS (Expanded Polystyrene) foam particles, PVA (Polyvinyl Alcohol Fiber) fiber, and flame retardant. The material of the second pouring layer 2 is slag, water, steel slag, water glass, EPS foam particles, steel fiber, and flame retardant. The steel slag in the second pouring layer 2 has a certain degree of conductivity. By adding a small amount of steel fiber, the embankment strength can be improved, effectively resisting vehicle impact loads, and the conductivity of alkali-activated lightweight soil can be further improved. After being energized, it can release heat to remove snow and ice from the road surface, ensuring smooth traffic and preventing the internal alkali-activated lightweight soil from being affected by freeze-thaw cycles, which would cause a significant reduction in strength. This allows the application of alkali-activated lightweight soil embankments to cold northern regions, and it can also control the optimal maintenance temperature during embankment maintenance, accelerating the formation of embankment strength.

[0046] EPS foam particles are structurally stable, acid- and alkali-resistant, and lightweight. Using EPS foam particles instead of foaming agents can avoid reactions between alkali activators and certain foaming agents, which could lead to unstable foam structures and affect the quality of alkali-activated lightweight soil. Furthermore, EPS foam particles have good thermal insulation properties, which can mitigate the effects of external freeze-thaw cycles to some extent. Adding PVA fibers to the alkali-activated lightweight soil solves the problem of insufficient AFt (Aluminate Ferrite Tri-sulfate) in the alkali-activated steel slag system, resulting in a large number of smooth particles not covered by gel, leading to poor adhesion and cracking. This improves the strength and durability of the alkali-activated lightweight soil.

[0047] In this embodiment, by incorporating steel fibers into the first casting layer 1 and pre-embedding the second casting layer 2 with the metal plate 10, a conductive circuit can be formed. When energized, Joule heating is generated, enabling automatic de-icing of the road surface in winter and accelerating strength formation during the curing period. Directly utilizing the embankment's own conductivity for heating is more energy-efficient than external heat sources, while also ensuring uniform temperature distribution and preventing localized overheating that could damage the structure.

[0048] In one embodiment, the system also includes a condenser dehumidifier 17 and a spiral grouting pump 15, both of which are connected to the second communication end.

[0049] In this embodiment, the condenser dehumidifier 17 can handle dehumidification under high humidity conditions, while the high-pressure micro-mist humidifier 16 can handle humidification under dry conditions. After the geomembrane fails, high-strength cement grout can be injected through the spiral grouting pump 15 to form a reinforced skeleton, repair cracks, and improve load-bearing capacity.

[0050] In one embodiment, a data collector 9 and a controller are also included. The data collector 9 is electrically connected to a temperature sensor 7 and a humidity sensor 6, respectively. The controller is electrically connected to a vacuum pump 14, a high-pressure micro-mist humidifier 16, a condenser dehumidifier 17, a power supply 8, and a spiral grouting pump 15, respectively. The controller is adapted to control the switching on and off of the vacuum pump 14, the high-pressure micro-mist humidifier 16, the condenser dehumidifier 17, the power supply 8, and the spiral grouting pump 15 based on the temperature and humidity information acquired by the data collector 9.

[0051] It should be noted that the temperature sensor 7 and humidity sensor 6 are pre-embedded in the embankment and connected to the data collector 9 via wires.

[0052] In this embodiment, automatic power-on de-icing can be achieved, reducing the risk of freeze-thaw cycles; automatic start-up and shutdown of dehumidification / humidification equipment can be achieved; and automatic grouting reinforcement can be achieved, preventing structural deterioration.

[0053] In one embodiment, the embankment body further includes mixing piles 19 and a crushed stone layer 18. The crushed stone layer 18 is disposed on the mixing piles 19, and the first pouring layer 1 is disposed on the crushed stone layer 18.

[0054] In this embodiment, by reinforcing the soft soil foundation with mixing piles 19 and draining and preventing siltation with crushed stone layer 18, the bearing capacity of the foundation can be improved, and the uneven settlement of the widened embankment and groundwater erosion can be effectively prevented.

[0055] In one embodiment, both opposite sides of the first casting layer 1 and the second casting layer 2 are provided with stepped structures 11.

[0056] In this embodiment, a stepped interface design is adopted, which can increase the contact area between the new and old embankments and suppress shear misalignment and longitudinal cracks; the stepped structure 11 extending to the clay edging enhances lateral restraint and ensures long-term coordinated deformation.

[0057] In one embodiment, the pipe assembly structure 3 includes a first pipe, a second pipe, and a third pipe, each of which is provided in multiples. The first pipe, the second pipe, and the third pipe intersect each other and are interconnected.

[0058] It should be noted that a grid-like pipe assembly structure 3 is erected above the first geomembrane. Specifically, PVC (Polyvinyl Chloride) pipes with small holes of 3cm to 5cm in diameter and covered with filter cloth are arranged vertically in a quincunx pattern within the embankment. The top and near the bottom are connected by horizontal PVC pipes and multi-connector joints to form the pipe assembly structure 3. The bottom horizontal PVC pipes are connected to the spiral grouting pump 15, the high-pressure micro-mist humidifier 16, and the condenser dehumidifier 17 via air pipes (i.e., the second connecting end). The top horizontal PVC pipes are connected to the carbon dioxide cylinder 22, the negative pressure container 13, and the vacuum pump 14 via air pipes (i.e., the first connecting end). Each component is equipped with an independent valve, which is initially closed. The PVC pipes are the first pipe, the second pipe, and the third pipe. The vertical PVC pipes are spaced 0.5m to 1.5m apart, with the bottom flush with the lower surface of the embankment and the top 0.5m to 1m apart from the upper surface of the embankment. The horizontal PVC pipes are 0.5m to 1m away from the upper and lower surfaces of the embankment.

[0059] In this embodiment, the first, second, and third pipes can form a three-dimensional grid to ensure that carbon dioxide, water mist, and slurry are evenly diffused across the entire cross-section of the embankment, while the pipe network itself enhances the overall shear strength.

[0060] In one embodiment, a clay layer 20 is provided on at least one side of the first casting layer 1 and the second casting layer 2.

[0061] In one embodiment, geotextile 5 is provided to cover the periphery of the first pouring layer 1 and the second pouring layer 2, and a first geomembrane is provided between the geotextile 5 and the periphery of the first pouring layer 1 and the second pouring layer 2.

[0062] Understandably, the laid geotextile 5 and the first geomembrane are located above the gravel layer 18.

[0063] In one embodiment, a second geomembrane 4 is provided on the top surface of the second pouring layer 2, and between the clay layer 20 and the first pouring layer 1 and the second pouring layer 2.

[0064] Optionally, water-sealing trenches are excavated on both sides of the construction area, waterproof concrete is applied to the trenches, and water is injected after it dries. The first geomembrane is then extended into the water-sealing trench. The geomembrane extends into the water-sealing trench, isolating external moisture infiltration and climate erosion, blocking the effects of wet-dry cycles at the source, and establishing a physical barrier.

[0065] In this embodiment, the clay layer 20 can be constructed with a clay edging to provide an ecological barrier and mechanical protection, and the geotextile 5 provides puncture-proof buffer; the first geomembrane is waterproof and extends to the sealed water tank 12 to form a water seal, and the second geomembrane 4 also serves as a road waterproofing layer and is located inside the clay layer 20. The three work together to block external water vapor erosion and extend the structural life.

[0066] In one embodiment, a construction area is established by reinforcing the soft soil foundation with mixing piles 19 and formwork erected around the mixing piles 19 away from the existing embankment 21. A crushed stone layer 18 is laid within the construction area, and geotextile 5 and a first geomembrane are laid sequentially on top of the crushed stone layer 18. A grid-like pipe assembly structure 3 is erected above the first geomembrane, and a first pour is made into the construction area to construct the first pouring layer 1. After covering the top of the pipe assembly structure 3, a second pour is made to construct the second pouring layer 2 until it is flush with the surface of the existing embankment 21. Then, a second geomembrane 4 is laid to establish and widen the embankment, and its sealing is tested. Specifically, temperature sensors 7 and humidity sensors 6 are pre-embedded in the embankment and connected to a data collector 9 via wires. Metal plates 10 are pre-embedded at both ends of the top of the embankment, and the metal plates 10 are connected to a power supply 8 via wires. The excavated slag is screened and mixed evenly with water, steel slag, water glass, EPS foam particles, PVA fiber, and flame retardant. This mixture is then poured into the widened embankment up to the top of the PVC pipe, completing the first pour. The PVA fiber is then replaced with steel fiber, mixed evenly with the other materials, and pouring continues until the embankment surface is reached, completing the second pour. A second geomembrane 4 is then placed on top of the widened embankment, extending to the sealed water tank 12 on both sides. The connection between the geomembrane and the air pipe is sealed. Finally, the vacuum pump 14 is turned on to test the geomembrane's sealing performance, and the vacuum level is recorded. The humidity inside the widened embankment is monitored, and carbonization enhancement treatment is performed. Specifically, after the alkali activator and steel slag have fully reacted to generate sufficient cementitious material, the humidity sensor 6 detects a decrease in humidity to 65%, and the carbon dioxide cylinder 22 is activated for carbonization enhancement treatment. The humidity and temperature inside the widened embankment are monitored in real time, and curing treatment is carried out accordingly. Specifically, after carbonization, the carbon dioxide cylinder 22 is shut off, the high-pressure micro-mist humidifier 16 is run, and the power supply 8 is turned on to provide the optimal curing temperature and humidity for the embankment. The formwork is removed, and a clay layer 20 is laid on the side of the widened embankment away from the existing embankment 21. The second geomembrane 4 is then placed within the clay layer 20, and the sealing performance is checked again. Specifically, after curing, the high-pressure micro-mist humidifier 16 is stopped, and the power supply 8 is turned off. The carbon dioxide cylinder 22 and the outer formwork of the widened embankment are removed, and clay edging is applied. At this time, the second geomembrane 4 is pressed into the clay edging, and the water in the sealing water tank 12 is drained before re-pouring concrete. The pavement structure is then laid sequentially on the geomembrane of the widened embankment. The geomembrane is not removed and serves as a waterproofing layer. The vacuum pump 14 is run again, and the vacuum level is compared with that in S4 to confirm the sealing performance. The road surface is laid, and the humidity and temperature inside the embankment are monitored in real time during operation. Based on the obtained humidity and temperature information, the temperature and humidity inside the embankment are adjusted.

[0067] During road operation, when the outside temperature begins to drop and the road surface freezes, the embankment internal temperature sensor 7 indicates that the temperature has reached 0°C. Power is then turned on 8 to de-ice the road surface, preventing further temperature drops and the freezing of the alkali-activated lightweight soil. When the geomembrane is partially damaged, and the outside temperature is high or during the rainy season, the embankment internal humidity sensor 6 indicates that the humidity variation exceeds 50%. If the humidity is high, a condenser dehumidifier 17 is activated; if the humidity is low, a high-pressure micro-mist humidifier 16 is activated. When the geomembrane is completely aged and damaged, and the wet-dry cycle and freeze-thaw cycle systems fail, a vacuum pump 14 is activated. After reaching a certain negative pressure, high-strength cement grout is prepared, and a spiral grouting pump 15 is activated until cement grout appears in the negative pressure container 13, at which point grouting stops.

[0068] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A system for constructing a carbonated alkali-activated based light soil embankment, characterized in that, include: The embankment body includes a first pouring layer (1) and a second pouring layer (2). A humidity sensor (6) and a pipe assembly structure (3) are installed in the first pouring layer (1). A first connecting end is provided at the top of the pipe assembly structure (3), and a second connecting end is provided at the bottom of the pipe assembly structure (3). The second pouring layer (2) is installed on the first pouring layer (1), and a temperature sensor (7) is installed in the second pouring layer (2). A vacuum pump (14) and a carbon dioxide tank (22) are both connected to the first communication end; The high-pressure micro-mist humidifier (16) is connected to the second communication terminal.

2. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 1, characterized in that, Also includes: A pair of metal plates (10) are respectively disposed on two opposite sides of the second casting layer (2), and steel fibers are disposed in the first casting layer (1); The power supply (8) includes a positive terminal and a negative terminal, the positive terminal being electrically connected to one of the metal plates (10) and the negative terminal being electrically connected to the other metal plate (10).

3. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 2, characterized in that, Also includes: The condenser dehumidifier (17) and the spiral grouting pump (15) are both connected to the second connecting end.

4. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 3, characterized in that, Also includes: The data collector (9) is electrically connected to the temperature sensor (7) and the humidity sensor (6), respectively; The controller is electrically connected to the vacuum pump (14), the high-pressure micro-mist humidifier (16), the condenser dehumidifier (17), the power supply (8), and the spiral grouting pump (15), respectively. The controller is adapted to control the switching of the vacuum pump (14), the high-pressure micro-mist humidifier (16), the condenser dehumidifier (17), the power supply (8), and the spiral grouting pump (15) based on the temperature and humidity information obtained by the data collector (9).

5. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 1, characterized in that, The embankment body also includes: Mixing piles (19); A crushed stone layer (18) is set on the mixing pile (19), and the first pouring layer (1) is set on the crushed stone layer (18).

6. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 1, characterized in that, Both sides of the first pouring layer (1) and the second pouring layer (2) are provided with stepped structures (11).

7. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 1, characterized in that, The pipe assembly structure (3) includes: Multiple first, second, and third pipes are provided, and the first, second, and third pipes intersect each other and are interconnected.

8. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 1, characterized in that, At least one side of the first pouring layer (1) and the second pouring layer (2) is provided with a clay layer (20).

9. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 8, characterized in that, The first pouring layer (1) and the second pouring layer (2) are covered with geotextile (5), and a first geomembrane is provided between the geotextile (5) and the periphery of the first pouring layer (1) and the second pouring layer (2).

10. The construction system for carbonized alkali-activated lightweight soil embankments according to claim 9, characterized in that, A second geomembrane (4) is provided on the top surface of the second pouring layer (2) and between the clay layer (20) and the first pouring layer (1) and the second pouring layer (2).

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