Embankment construction method, embankment and embankment construction system

The embankment construction method using layered pouring and intelligent monitoring and control has solved the durability problem of alkali-activated lightweight soil embankments under wet-dry and freeze-thaw cycles, enhanced the crack resistance and electrical conductivity of the embankments, and extended their service life.

CN120867154APending Publication Date: 2025-10-31杭州市交通工程集团有限公司
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Patent Information

Application Number
CN202510994898.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

Alkali-activated lightweight soil embankments are easily damaged under wet-dry and freeze-thaw cycles, and have insufficient durability.

Method used

A layered pouring method is adopted, combining the use of PVA fiber and steel fiber, along with EPS foam particles. Humidity and temperature detection components are set up, and vacuum pumps, carbonization equipment, and heating devices are used for real-time monitoring and control to establish a double-layer geomembrane protection.

Benefits of technology

It improves the embankment's crack resistance and electrical conductivity for de-icing, extends the embankment's service life, and prevents damage from wet-dry and freeze-thaw cycles.

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Abstract

The invention relates to the technical field of road construction, and discloses an embankment construction method, an embankment and an embankment construction system.The embankment construction method comprises the steps that a grid-shaped pipe set structure is erected, external pipelines are reserved at the top and the bottom of the pipe set structure correspondingly, first pouring is conducted in a construction area till the top end of the pipe set structure is covered, and then the external pipelines are formed; and pouring for the second time until the second geomembrane is flush with the surface of the existing embankment, then laying a second geomembrane, establishing the widening embankment, and detecting the sealing performance. And detecting the humidity in the widened embankment, and performing carbonization enhancement treatment. The humidity and temperature in the widened embankment are detected in real time, and maintenance treatment is conducted. And paving a road surface, detecting the humidity and the temperature in the widened embankment in real time during operation, and adjusting the temperature and the humidity in the widened embankment according to the obtained humidity and temperature information. The problem of deterioration of the alkali-activated material under the dry-wet / freeze-thaw cycle is solved.
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Description

Technical Field

[0001] This application relates to the field of road construction technology, specifically to an embankment construction method, an embankment, and an embankment construction system. 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. Summary of the Invention

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

[0004] In a first aspect, this application provides a method for constructing an embankment, comprising the following steps:

[0005] S1. Excavate the ground on one side of the existing embankment and set up mixing piles. Set up formwork on the periphery of the mixing piles away from the existing embankment to establish the construction area.

[0006] S2. Lay a layer of crushed stone in the construction area, and then lay geotextile and the first geomembrane on top of the crushed stone layer in sequence.

[0007] S3. A grid-like pipe assembly structure is erected above the first geomembrane, and external pipes are reserved at the top and bottom of the pipe assembly structure respectively.

[0008] S4. The first pouring is carried out in the construction area, and after the top of the covering pipe structure is reached, the second pouring is carried out until it is flush with the surface of the existing embankment. Then the second geomembrane is laid to build the widened embankment and the sealing is tested.

[0009] S5. Detect the humidity inside the widened embankment and perform carbonization reinforcement treatment;

[0010] S6. Real-time monitoring of humidity and temperature within the widened embankment, and implementation of maintenance measures;

[0011] S7. Remove the formwork, lay a clay layer on the side of the widened embankment away from the existing embankment, and place the second geomembrane in the clay layer, and test the sealing performance again.

[0012] S8. Lay the road surface and monitor the humidity and temperature inside the embankment in real time during operation. Adjust the temperature and humidity inside the embankment based on the obtained humidity and temperature information.

[0013] Beneficial effects: The construction process, which includes humidity testing, carbonization enhancement, temperature and humidity curing, and seal re-inspection, solves the deterioration problem of alkali-activated materials under dry-wet / freeze-thaw cycles. Layered casting specifically improves the crack resistance and electrical conductivity for de-icing in different embankment areas. Continuous monitoring and control during operation extend the embankment's lifespan.

[0014] In one optional implementation, in step S1, the excavation face and formwork of the existing embankment are both set as stepped structures.

[0015] Beneficial effects: The stepped connection increases the contact area, prevents misalignment and settlement between the widened embankment and the existing embankment / clay edging, and enhances the interface strength between the new and old embankments.

[0016] In one optional implementation, in step S2, water sealing trenches are excavated on the ground on both sides of the construction area, waterproof concrete is applied to the water sealing trenches, water is injected after air drying, and the first geomembrane is extended into the water sealing trenches.

[0017] Beneficial effects: The geomembrane extends to the sealed water tank, isolating external moisture infiltration and climate erosion, blocking the effects of wet and dry cycles from the source, and establishing a physical barrier.

[0018] In an optional embodiment, in step S4, during the first pour, a mixture of slag, water, steel slag, water glass, EPS (Expanded Polystyrene) foam particles, PVA (Polyvinyl Alcohol Fiber) fibers, and flame retardant is poured into the construction area; during the second pour, the mixture of slag, water, steel slag, water glass, EPS foam particles, steel fibers, and flame retardant is poured.

[0019] Beneficial effects: The PVA fibers in the first pour enhance crack resistance and compensate for insufficient particle bonding caused by the lack of AFt (Aluminate Ferrite Tri-sulfate) in the alkali-activated system. The steel fibers in the second pour enhance conductivity, providing a foundation for subsequent electrothermal de-icing and resisting vehicle impact loads. EPS foam particles replace traditional foaming agents, avoiding reaction with alkali activators and ensuring the long-term stability and thermal insulation of the lightweight soil.

[0020] In one alternative implementation, in step S4, a humidity detection component is laid during the first pouring process, a temperature detection component is laid during the second pouring process, and the second geomembrane is extended into the sealing trench.

[0021] Beneficial effects: The humidity sensor is embedded in the first pouring layer and the temperature sensor is placed in the second pouring layer, which can accurately control the environment in key areas and realize intelligent maintenance.

[0022] Secondly, this application also provides an embankment, comprising:

[0023] The existing embankment and the widened embankment are connected;

[0024] The widened embankment includes:

[0025] Mixing pile layer;

[0026] The crushed stone layer is placed on top of the mixing pile layer;

[0027] The first pouring layer is set on the crushed stone layer. A humidity monitoring component and a pipe assembly structure are set in the first pouring layer. The pipe assembly structure includes a first connecting end and a second connecting end, and both the first connecting end and the second connecting end are connected to the pipe assembly structure. The first connecting end and the second connecting end are adapted to be connected to external equipment.

[0028] The second pouring layer is disposed on the first pouring layer, and a temperature monitoring component is disposed within the second pouring layer.

[0029] Beneficial effects: The pipe assembly structure can integrate carbonation reinforcement, humidity control, and grouting repair functions, making it a multi-purpose pipe. Double geomembrane wrapping can also serve as a waterproof layer during operation, reducing the intrusion of external moisture.

[0030] In one alternative embodiment, a clay layer is provided on the side of the first and second pouring layers away from the existing embankment.

[0031] In one alternative embodiment, geotextile is provided to cover the periphery of the first and second pouring layers.

[0032] In one optional embodiment, a first geomembrane is provided between the periphery of the first and second pouring layers and the geotextile, and a second geomembrane is provided around the periphery of the second pouring layer, the existing embankment, and the clay layer.

[0033] Thirdly, this application also provides an embankment construction system, comprising:

[0034] Embankment;

[0035] The equipment includes a vacuum testing device, a carbonization device, a humidification device, a dehumidification device, and a heating device. The vacuum testing device, carbonization device, humidification device, and dehumidification device are all connected to the pipe assembly structure of the embankment, and the heating device is installed in the first pouring layer of the embankment.

[0036] Beneficial effects: By linking the vacuum pump (sealing detection), carbonization equipment (strength improvement), humidification / dehumidification equipment (humidity balance), and heating device (temperature control), it can be powered on to heat and defrost during freeze-thaw cycles and automatically adjust humidity during dry and wet seasons. Attached Figure Description

[0037] 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.

[0038] Figure 1 This is a schematic diagram of the structure of an embankment according to an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the pipe assembly structure in an embodiment of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 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

[0042] 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.

[0043] The following is combined Figures 1 to 2 This describes an embodiment of the present application.

[0044] According to an embodiment of this application, in one aspect, a method for constructing an embankment is provided, comprising the following steps:

[0045] S1. Excavate the ground on one side of the existing embankment 21 and install mixing piles 19 to strengthen the soft soil foundation. Set up formwork around the mixing piles 19 away from the existing embankment 21 to establish the construction area.

[0046] S2. Lay a crushed stone layer 18 in the construction area, and lay geotextile 5 and the first geomembrane on top of the crushed stone layer 18 in sequence.

[0047] S3. A grid-like pipe assembly structure 3 is erected above the first geomembrane, with external pipe lines reserved at the top and bottom of the pipe assembly structure 3. 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 inside the embankment. The top and near the bottom are connected by horizontal PVC pipes and multi-port joints to form the pipe assembly structure 3. The bottom horizontal PVC pipes are connected to the spiral grouting pump 15, high-pressure micro-mist humidifier 16, and condenser dehumidifier 17 via air pipes (i.e., the reserved external pipe lines). The top horizontal PVC pipes are connected to the carbon dioxide tank 22, negative pressure container 13, and vacuum pump 14 via air pipes (i.e., the reserved external pipe lines). Each component is equipped with an independent valve, which is initially in the closed state. 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.

[0048] S4. First, pour the first layer of geomembrane into the construction area, up to the top of the covering pipe structure 3. Then, pour a second layer until it is flush with the surface of the existing embankment 21. Next, lay the second geomembrane 4 to establish the widened embankment and test its sealing. Specifically, embed the temperature sensor 7 and humidity sensor 6 within the embankment, connecting them to the data collector 9 via wires. Embed the metal plate 10 at both ends of the top of the embankment, connecting it to the power supply 8 via wires. Screen the excavated soil, mix it evenly with water, steel slag, water glass, EPS foam particles, PVA fiber, and flame retardant, and pour the mixture into the widened embankment up to the top of the PVC pipe, completing the first pour. Replace the PVA fiber with steel fiber and mix it evenly with the other materials, continuing pouring until the embankment surface, completing the second pour. Then, cover the top of the widened embankment with another layer of second geomembrane 4, extending it to the sealing water tank 12 on both sides. Seal the connection between the geomembrane and the air pipe. Finally, turn on vacuum pump 14 to test the geomembrane sealing performance and record the vacuum level at this time.

[0049] S5. Detect the humidity within the widened embankment and perform carbonization enhancement treatment. Specifically, after waiting for the alkali activator to fully react with the steel slag to generate sufficient cementitious material, the humidity sensor 6 detects that the humidity has dropped to 65%, and then the carbon dioxide gas cylinder 22 is turned on to perform carbonization enhancement treatment.

[0050] S6. Real-time monitoring of humidity and temperature within the widened embankment, and implementation of maintenance measures. Specifically, after carbonization is complete, the carbon dioxide tank 22 is shut off, the high-pressure micro-mist humidifier 16 is run, and the power supply 8 is turned on to provide the embankment with optimal maintenance temperature and humidity.

[0051] S7. Remove the formwork and lay a clay layer 20 on the side of the widened embankment away from the existing embankment 21. Place the second geomembrane 4 within the clay layer 20 and check the sealing performance again. Specifically, after curing, stop the high-pressure micro-mist humidifier 16 and turn off the power supply 8. Remove the carbon dioxide cylinder 22 and the outer formwork of the widened embankment, and wrap the edges with clay. At this time, press the second geomembrane 4 into the clay wrapping, drain the water from the sealing water tank 12, and re-pour concrete. Lay the pavement structure sequentially on the geomembrane of the widened embankment. The geomembrane is not removed and serves as a waterproofing layer. Run the vacuum pump 14 again and compare the vacuum level with that in S4 to confirm whether the seal is good.

[0052] S8. Lay the road surface and monitor the humidity and temperature inside the embankment in real time during operation. Adjust the temperature and humidity inside the embankment based on the obtained humidity and temperature information.

[0053] Step S8 includes the following steps: When the outside temperature begins to drop and the road surface freezes, the temperature sensor 7 inside the embankment indicates that the temperature has reached 0°C. Power is then turned on (power 8) to de-ice the road surface, preventing further temperature drops inside the embankment 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 humidity sensor 6 inside the embankment indicates that the humidity variation exceeds 50%. If the humidity is high, a condenser dehumidifier (17) is run; if the humidity is low, a high-pressure micro-mist humidifier (16) is run. When the geomembrane is completely aged and damaged, and the wet-dry cycle and freeze-thaw cycle systems have all failed, a vacuum pump (14) is run. After reaching a certain negative pressure, high-strength cement grout is prepared, and a spiral grouting pump (15) is run until cement grout appears in the negative pressure container (13), at which point grouting stops.

[0054] In this embodiment, the deterioration problem of alkali-activated materials under dry-wet / freeze-thaw cycles was solved through a construction process involving humidity detection, carbonization enhancement, temperature and humidity curing, and sealing re-inspection. Layered casting (PVA fiber layer and steel fiber layer) specifically improves the performance (crack resistance and electrical conductivity for de-icing) of different embankment areas. Continuous monitoring and control during the operation period extends the embankment's lifespan.

[0055] In one embodiment, in step S1, the excavation face and formwork of the existing embankment 21 are both set as stepped structures 11.

[0056] In this embodiment, the stepped connection increases the contact area, prevents misalignment and settlement between the widened embankment and the existing embankment 21 / clay edging, and enhances the interface strength between the new and old embankments.

[0057] In one embodiment, in step S2, water sealing trenches are excavated on the ground on both sides of the construction area, waterproof concrete is applied to the water sealing trenches, water is injected after drying, and the first geomembrane is extended into the water sealing trenches.

[0058] In this embodiment, the geomembrane extends to the sealed water tank 12, isolating external moisture infiltration and climate erosion, blocking the influence of wet and dry cycles from the source, and establishing a physical isolation barrier.

[0059] In one embodiment, in step S4, during the first pour, a mixture of slag, water, steel slag, water glass, EPS foam particles, PVA fiber, and flame retardant is poured into the construction area; during the second pour, the mixture of slag, water, steel slag, water glass, EPS foam particles, steel fiber, and flame retardant is poured.

[0060] Understandably, the steel slag in the second pouring process has a certain degree of conductivity. Adding a small amount of steel fiber can not only improve the embankment strength and effectively resist vehicle impact loads, but also further improve the conductivity of alkali-activated lightweight soil. After being energized, it can release heat to clear snow and ice from the road surface, ensuring smooth traffic flow and preventing the internal alkali-activated lightweight soil from being significantly reduced in strength due to freeze-thaw cycles. This allows the application of alkali-activated lightweight soil embankments to be extended to cold northern regions. It can also control the optimal curing temperature during embankment maintenance, accelerating the formation of embankment strength.

[0061] 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.

[0062] By adding PVA fibers to alkali-activated lightweight soil, the problem of insufficient AFt in the alkali-activated steel slag system, resulting in a large number of relatively smooth particles not covered by gel and poor adhesion, is solved, which easily leads to cracks. This improves the strength and durability of alkali-activated lightweight soil to a certain extent.

[0063] In this embodiment, the PVA fibers in the first pour enhance crack resistance and compensate for insufficient particle bonding caused by the lack of AFt in the alkali-activated system. The steel fibers in the second pour enhance conductivity, providing a foundation for subsequent electrothermal de-icing, while also resisting vehicle impact loads. EPS foam particles replace traditional foaming agents, avoiding reaction with the alkali activator and ensuring the long-term stability and thermal insulation of the lightweight soil.

[0064] In one embodiment, in step S4, a humidity detection component is laid during the first pouring process, a temperature detection component is laid during the second pouring process, and the second geomembrane 4 is extended into the sealing trench.

[0065] In this embodiment, the humidity monitoring component is set as a humidity sensor 6, which is embedded in the first pouring layer 1, and the temperature detection component is set as a temperature sensor 7, which is set in the second pouring layer 2. This can accurately control the environment of key areas and realize intelligent maintenance.

[0066] According to an embodiment of this application, another aspect provides an embankment, comprising:

[0067] The existing embankment 21 and the widened embankment are connected.

[0068] The widened embankment comprises 19 layers of mixing piles, 18 layers of crushed stone, a first pouring layer 1, and a second pouring layer 2. The crushed stone layer 18 is situated on top of the 19 layers of mixing piles. The first pouring layer 1 is situated on top of the crushed stone layer 18 and contains a humidity monitoring component and a pipe assembly structure 3. The pipe assembly structure 3 includes a first connecting end and a second connecting end, both of which are connected to the pipe assembly structure 3 and are suitable for connection to external equipment. The second pouring layer 2 is situated on top of the first pouring layer 1 and contains a temperature monitoring component.

[0069] It should be noted that by arranging PVC pipes inside the embankment, not only can carbonization be used to strengthen the alkali-activated lightweight soil, but it can also ensure the stability of the embankment. During maintenance, the humidity is kept constant by connecting the PVC pipes to the high-pressure micro-mist humidifier 16. During operation, the condenser dehumidifier 17 and the high-pressure micro-mist humidifier 16 are connected to the PVC pipes to ensure that the embankment is not affected by the dry-wet cycle, which would cause a significant reduction in strength. If the embankment is damaged by extreme environmental factors, high-strength cement grout can be injected into the PVC pipes to form a reinforced embankment and provide support for the embankment.

[0070] Optionally, the thickness of the second pouring layer 2 is 0.3m to 0.5m.

[0071] In this embodiment, the PVC pipe assembly structure 3 integrates carbonization reinforcement, humidity control, and grouting repair functions, making it a multi-purpose pipe. The double geomembrane wrapping can also serve as a waterproof layer during operation, reducing the intrusion of external moisture.

[0072] In one embodiment, a clay layer 20 is provided on the side of the first pouring layer 1 and the second pouring layer 2 away from the existing embankment 21.

[0073] In one embodiment, geotextile 5 is provided to cover the outer periphery of the first pouring layer 1 and the second pouring layer 2.

[0074] In one embodiment, a first geomembrane is provided between the periphery of the first pouring layer 1 and the second pouring layer 2 and the geotextile 5, and a second geomembrane 4 is provided around the periphery of the second pouring layer 2, the existing embankment 21 and the clay layer 20.

[0075] According to an embodiment of this application, another aspect provides an embankment construction system, including: an embankment, a vacuum testing device, a carbonization device, a humidification device, a dehumidification device, and a heating device. The vacuum testing device, the carbonization device, the humidification device, and the dehumidification device are all connected to the pipe assembly structure 3 of the embankment, and the heating device is disposed in the first pouring layer 1 of the embankment.

[0076] In this embodiment, by linking the vacuum pump 14 (sealing detection), carbonization equipment (strength enhancement), humidification / dehumidification equipment (humidity balance), and heating device (temperature control), it is possible to heat and defrost during the freeze-thaw period and automatically adjust humidity during dry and wet seasons.

[0077] 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 method for constructing an embankment, characterized in that, Includes the following steps: S1. Excavate the ground on one side of the existing embankment (21) and set up mixing piles (19). Set up formwork around the mixing piles (19) away from the existing embankment (21) to establish the construction area. S2. Lay a crushed stone layer (18) in the construction area, and lay geotextile (5) and the first geomembrane on top of the crushed stone layer (18). S3. A grid-shaped pipe assembly structure (3) is erected above the first geomembrane, and external pipes are reserved at the top and bottom of the pipe assembly structure (3). S4. The first pouring is carried out in the construction area until the top of the covering pipe structure (3) is reached. Then the second pouring is carried out until it is flush with the surface of the existing embankment (21). Then the second geomembrane (4) is laid to build the widened embankment and test the sealing performance. S5. Detect the humidity inside the widened embankment and perform carbonization reinforcement treatment; S6. Real-time monitoring of humidity and temperature within the widened embankment, and implementation of maintenance measures; S7. Remove the formwork, lay a clay layer (20) on the side of the widened embankment away from the existing embankment (21), and place the second geomembrane (4) in the clay layer (20) and test the sealing performance again. S8. Lay the road surface and monitor the humidity and temperature inside the embankment in real time during operation. Adjust the temperature and humidity inside the embankment based on the obtained humidity and temperature information.

2. The embankment construction method according to claim 1, characterized in that, In step S1, the excavation face and formwork of the existing embankment (21) are both set as stepped structures (11).

3. The embankment construction method according to claim 1, characterized in that, In step S2, water sealing trenches are excavated on both sides of the construction area, waterproof concrete is applied to the water sealing trenches, water is injected after it dries, and the first geomembrane is extended into the water sealing trenches.

4. The embankment construction method according to claim 1, characterized in that, In step S4, during the first pour, a mixture of slag, water, steel slag, water glass, EPS foam particles, PVA fiber, and flame retardant is poured into the construction area. During the second pour, the mixture of slag, water, steel slag, water glass, EPS foam particles, steel fiber, and flame retardant is poured.

5. The embankment construction method according to claim 1, characterized in that, In step S4, a humidity detection component is laid during the first pouring process, and a temperature detection component is laid during the second pouring process. The second geomembrane (4) is then extended into the sealing trench.

6. An embankment, characterized in that, include: The existing embankment (21) and the widened embankment are connected; The widened embankment includes: Mixing pile (19) layers; The crushed stone layer (18) is set on the mixing pile (19) layer; The first pouring layer (1) is set on the crushed stone layer (18). The first pouring layer (1) is provided with a humidity monitoring component and a pipe assembly structure (3). The pipe assembly structure (3) includes a first connecting end and a second connecting end, and both the first connecting end and the second connecting end are connected to the pipe assembly structure (3). The first connecting end and the second connecting end are suitable for connecting to external equipment. The second pouring layer (2) is disposed on the first pouring layer (1), and a temperature monitoring component is disposed in the second pouring layer (2).

7. The embankment according to claim 6, characterized in that, A clay layer (20) is provided on the side of the first pouring layer (1) and the second pouring layer (2) away from the existing embankment (21).

8. The embankment according to claim 7, characterized in that, Geotextile (5) is provided to cover the outer periphery of the first pouring layer (1) and the second pouring layer (2).

9. The embankment according to claim 8, characterized in that, A first geomembrane is provided between the periphery of the first pouring layer (1) and the second pouring layer (2) and the geotextile (5), and a second geomembrane (4) is provided around the periphery of the second pouring layer (2), the existing embankment (21) and the clay layer (20).

10. An embankment construction system, characterized in that, include: The embankment according to any one of claims 6 to 9; Vacuum testing equipment, carbonization equipment, humidification equipment, dehumidification equipment and heating device, wherein the vacuum testing equipment, carbonization equipment, humidification equipment and dehumidification equipment are all connected to the pipe assembly structure (3) of the embankment, and the heating device is set in the first pouring layer (1) of the embankment.