Embankment grouting lifting device

Abstract

The utility model provides an embankment grouting lifting device, and relates to the technical field of road repair. The embankment grouting lifting device comprises a plurality of lifting assemblies which are configured to be pre-buried in an embankment and are arranged in parallel at intervals in the depth direction of the embankment, and each lifting assembly comprises two lifting plates which are arranged in parallel to the pavement of the embankment at intervals; the lifting cover is arranged on the peripheries of the two lifting plates in a sleeving mode, and a through hole is formed in the position, away from the center of the embankment, of the lifting cover; the pipe body penetrates through the through hole and extends between the two lifting plates; and the grouting assembly is suitable for injecting slurry into the lifting assembly through the pipe body. The settlement embankment is effectively lifted and reinforced through an accurate grouting technology, along with solidification of slurry in the lifting assembly, the bearing capacity and stability of the embankment can be improved, and the embankment can be prevented from settling again.

Description

Technical Field

[0001] The utility model relates to the technical field of highway repair, in particular to a grouting and lifting device for an embankment. Background Art

[0002] In highway projects, the roadbed will be macroscopically manifested as the settlement of the entire highway after long-term load action. Among them, the maximum settlement value of the highway mainly occurs in the central lower part of the embankment, and the differential settlement of the embankment will cause stress concentration. When the differential settlement develops to a certain extent, the road performance of the highway will inevitably be affected. The most typical phenomenon is cracking, and the location of pavement cracking is not fixed, but changes with the change of additional stress borne by the embankment at different stages during the service life. When differential settlement occurs, the cracking is the weak link of the embankment, affecting the integrity of the highway and determining the form and development degree of embankment and pavement diseases. Excessive differential settlement can easily cause stress concentration on the embankment and lead to longitudinal cracks along the pavement.

[0003] Differential settlement of highways is difficult to avoid, and how to take reasonable measures to control differential settlement of roads is a key issue in design and construction. The most common way to deal with road settlement is to use grouting technology, which can be applied to sections where the compaction of embankments or roadbeds is insufficient, local stability does not meet the requirements, or there are problems such as bridge head jumping. The existing grouting technology has the problem of unclear lifting effect, and the grouting slurry is difficult to control. In summary, the existing technology still lacks a grouting repair method that is both economical and high-performance to deal with differential settlement of highways. Utility Model Content

[0004] In view of this, the utility model provides a grouting lifting device for an embankment, which can effectively lift and reinforce the settled embankment, improve the bearing capacity and stability of the embankment, and prevent the embankment from settling again.

[0005] The utility model discloses a grouting and lifting device for embankment, which is used for lifting a subsidence embankment. The grouting and lifting device for embankment comprises: a plurality of lifting components, which are configured to be pre-buried in the embankment and arranged in parallel and spaced apart along the depth direction of the embankment, and each of the lifting components comprises: two lifting plates, which are arranged in parallel and spaced apart along the road surface of the embankment; a lifting cover, which is sleeved on the periphery of the two lifting plates, and the lifting cover is provided with a through hole at a position away from the center of the embankment; and a pipe body, which passes through the through hole and extends between the two lifting plates; and a grouting component, which is suitable for injecting slurry into the lifting component through the pipe body.

[0006] According to an embodiment of the present disclosure, the above-mentioned grouting assembly includes: a grouting outer pipe configured to be embedded in the shoulder of the above-mentioned embankment, and a plurality of first openings are formed along the depth direction of the above-mentioned embankment. The pipe body is fixedly connected to the above-mentioned grouting outer pipe, and the feed ports of the pipe bodies of the plurality of above-mentioned lifting assemblies are arranged in one-to-one correspondence with the plurality of above-mentioned first openings; and a grouting inner pipe, the above-mentioned grouting inner pipe is removably inserted into the above-mentioned grouting outer pipe and is used to inject the above-mentioned slurry into one of the plurality of above-mentioned pipe bodies.

[0007] According to an embodiment of the present disclosure, each of the above-mentioned grouting inner pipes is provided with a second opening, the above-mentioned second opening is configured to be arranged in alignment with one of the plurality of above-mentioned first openings and is in fluid communication with the feed port of the above-mentioned one pipe body, so that the above-mentioned slurry enters the above-mentioned pipe body through the above-mentioned grouting inner pipe.

[0008] According to an embodiment of the present disclosure, the above-mentioned grouting outer pipe includes a horizontal pipe and a vertical pipe arranged at an angle, and the above-mentioned horizontal pipe is installed at one end of the above-mentioned vertical pipe.

[0009] According to an embodiment of the present disclosure, the plurality of above-mentioned lifting assemblies are evenly spaced along the depth direction of the above-mentioned embankment.

[0010] According to an embodiment of the present disclosure, the above-mentioned lifting cover is provided with a plurality of the above-mentioned through holes along the length direction of the above-mentioned embankment, the plurality of above-mentioned grouting assemblies are evenly spaced along the length direction of the above-mentioned embankment, and the plurality of above-mentioned through holes of the above-mentioned lifting cover are arranged in one-to-one correspondence with the plurality of above-mentioned grouting assemblies.

[0011] According to an embodiment of the present disclosure, the depth of the above-mentioned embankment is H, and n of the above-mentioned lifting assemblies are arranged at intervals along the depth direction of the above-mentioned embankment, where H / 3 ≤ n ≤ H.

[0012] According to an embodiment of the present disclosure, the above-mentioned embankment has a settlement cross slope ratio, and the cross slope ratio determines the number of the above-mentioned lifting assemblies arranged along the depth direction of the above-mentioned embankment.

[0013] According to an embodiment of the present disclosure, the above-mentioned lifting cover is made of an elastic material.

[0014] According to an embodiment of the present disclosure, the above-mentioned pipe body is made of a flexible material.

[0015] According to an embodiment of the present disclosure, by pre-burying a plurality of lifting components inside the embankment, when the embankment has a settlement problem, the grouting component injects grout into the lifting component through the pipe body. As the grout is injected, both the upper lifting plate and the lower lifting plate are squeezed, and the upper lifting plate moves upward under the action of the upward pressure. It can not only push the embankment structure above to lift, but also apply pressure to the embankment in the depth direction and the lateral direction of the embankment, compact the particles of the embankment, and then effectively lift and reinforce the settlement embankment through precise grouting technology. As the grout cures in the lifting component, it can improve the bearing capacity and stability of the embankment and prevent the embankment from settling again. Description of the Drawings

[0016] Through the following description of the embodiments of the present invention with reference to the drawings, the above and other objects, features, and advantages of the present invention will become clearer. In the drawings:

[0017] Figure 1 Schematically shows a cross-sectional view of the embankment grouting and lifting device according to an embodiment of the present disclosure disposed in the embankment;

[0018] Figure 2 Schematically shows a first side view of the lifting component of the embankment grouting and lifting device according to an embodiment of the present disclosure;

[0019] Figure 3 Schematically shows a second side view of the lifting component of the embankment grouting and lifting device according to an embodiment of the present disclosure; and

[0020] Figure 4 Schematically shows a side view of a partial structure of an embodiment of the grouting inner pipe of the embankment grouting and lifting device according to an embodiment of the present disclosure.

[0021] Description of the Reference Numerals:

[0022] 1. Lifting component;

[0023] 11. Lifting plate;

[0024] 12. Lifting cover;

[0025] 121. Through hole;

[0026] 13. Pipe body;

[0027] 2. Grouting component;

[0028] 21. Grouting outer pipe;

[0029] 22. Grouting inner pipe;

[0030] 221. Solid part;

[0031] 222. Hollow part;

[0032] 223. Second opening

[0033] 3. Embankment

[0034] 31. Road shoulder Detailed implementation manner

[0035] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further elaborates on the present utility model in detail with reference to specific embodiments and the accompanying drawings.

[0036] The terms used herein are only for describing specific embodiments and are not intended to limit the present utility model. The terms "including", "comprising", etc. used herein indicate the presence of the described features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

[0037] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0038] In the case of using expressions such as "at least one of A, B, and C, etc.", generally, it should be interpreted according to the meaning commonly understood by those skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, a system having only A, only B, only C, having A and B, having A and C, having B and C, and / or having A, B, and C, etc. In the case of using expressions such as "at least one of A, B, or C, etc.", generally, it should be interpreted according to the meaning commonly understood by those skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, a system having only A, only B, only C, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.

[0039] It should also be noted that the directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only for reference to the directions in the drawings and are not used to limit the protection scope of the present utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. When it may cause confusion in the understanding of the present utility model, the conventional structures or configurations will be omitted.

[0040] In highway engineering, after long-term load action on the subgrade, the overall settlement of the highway will occur macroscopically. Among them, the maximum settlement value of the highway mainly occurs at the lower part of the center of the embankment, and due to the differential settlement of the embankment, stress concentration will occur. When the differential settlement develops to a certain extent, the road performance of the highway will inevitably be affected. The most typical phenomenon is cracking, and the position where the pavement cracks is not fixed, but changes with the change of the additional stress borne by the embankment at different stages during the service period. When the differential settlement occurs, the cracked part is the weak link of the embankment, affecting the integrity of the highway and determining the form and development degree of the embankment pavement diseases. Excessive differential settlement is likely to cause stress concentration in the embankment and then lead to longitudinal cracks along the pavement.

[0041] The differential settlement of highways is inevitable. How to take reasonable measures to control the differential settlement of roads is a key issue in design and construction. The most common treatment method for road settlement is to use grouting technology. Grouting technology can be applied to sections with problems such as insufficient compaction degree of the embankment or roadbed, unsatisfied local stability requirements, or vehicle bumping at bridgeheads. At present, there are problems with the existing grouting technology that the lifting effect is not obvious, and at the same time, the grout for grouting is difficult to control. To sum up, the existing technology still lacks a grouting repair method that combines economy and performance to deal with the differential settlement of highways.

[0042] Figure 1 A cross-sectional view showing the embankment grouting and lifting device according to an embodiment of the present disclosure disposed in the embankment is schematically shown. Figure 2 A first side view of the lifting assembly of the embankment grouting and lifting device according to an embodiment of the present disclosure is schematically shown. Figure 3 A second side view of the lifting assembly of the embankment grouting and lifting device according to an embodiment of the present disclosure is schematically shown.

[0043] See Figure 1 、 Figure 2 and Figure 3 Referring to

[0044] According to the embodiment of the present disclosure, the lifting plate 11 is arranged perpendicular to the depth direction of the embankment 3 as a support surface for grouting and lifting. After the slurry is injected, the lifting plate 11 can be pushed upward, thereby driving the entire embankment 3 structure to lift, and at the same time making the pressure applied by the slurry to the lifting plate 11 more uniform, improving the tilt correction and lifting effect of the embankment grouting lifting device on the embankment 3, and preventing the grouting process from having a negative impact on the embankment 3; when the grouting is not done, the two lifting plates 11 are in a fitted state and will not affect the normal filling work of the embankment 3. The thickness of the lifting plate 11 can be 0.1m~0.3m, and the length of the lifting plate 11 is set according to the width of the embankment 3, which will not be repeated here.

[0045] According to an embodiment of the present disclosure, the lifting cover 12 is made of elastic material.

[0046] According to the embodiment of the present disclosure, the elastic material of the lifting cover 12 can be made of high-strength, corrosion-resistant flexible material, which can be rubber or synthetic fiber, and can effectively withstand the pressure applied by slurry injection. The lifting cover 12 can restrain the excessive lateral deformation caused by the slurry, so that the lifting component 1 mainly has an upward lifting effect, reducing the impact of grouting on the stability of the embankment 3.

[0047] According to the embodiment of the present disclosure, the lifting cover 12 has ductility. When slurry is injected into the lifting assembly 1 through the grouting assembly 2, the lifting plate 11 is pushed to move upward, and the lifting cover 12 will automatically expand as the slurry enters.

[0048] According to the embodiment of the present disclosure, the provision of the lifting cover 12 enables the lifting assembly 1 to form a whole, thereby effectively reducing the leakage of slurry.

[0049] According to an embodiment of the present disclosure, the tube body 13 is made of a flexible material.

[0050] According to the embodiment of the present disclosure, when the lifting assembly 1 is pre-buried in the embankment 3, since the pipe body 13 is made of a flexible material, it is possible to prevent the pipe body 13 from being squeezed and damaged by the embankment 3, thereby improving the service life of the lifting assembly 1. For example, the pipe body 13 can be made of a rubber material.

[0051] According to the embodiment of the present disclosure, the settlement of the embankment 3 gradually decreases from the center of the embankment 3 to the outside, and the pipe body 13 extends into the position of the lifting assembly 1 close to the center of the embankment 3, and can accurately transport the slurry to the position that needs to be lifted, that is, the settlement position of the embankment 3. When the slurry is injected into the pipe body 13 through the grouting assembly 2, the slurry flows and diffuses from the lifting assembly 1 close to the center of the embankment 3 to the center away from the embankment 3. The lifting assembly 1 will present a state of one side high and one side low, which can not only effectively repair the large settlement at the center of the embankment 3, but also prevent the outer side of the embankment 3 from excessive lifting. Among them, the outer diameter of the pipe body 13 can be 0.1~0.2m.

[0052] According to an embodiment of the present disclosure, the multiple lifting components 1 embedded in the embankment 3 can also function as geogrids. The lifting components 1 have a certain stiffness and strength, can limit the lateral displacement of particles in the embankment 3, increase the shear strength of the embankment 3, thereby reducing the deformation and settlement of the embankment 3, and enhancing the stability of the embankment 3; by improving the stiffness and uniformity of the embankment 3, the bearing capacity of the embankment 3 can also be significantly improved, and the settlement amount of the embankment 3 can be reduced; according to the settlement situation of the embankment 3 during its service period, the appropriate number and positions of the embedded lifting components 1 are enabled to ensure that excessive settlement does not occur during the entire life cycle of the embankment 3, maintain the overall stability of the embankment 3, and prevent structural failure.

[0053] According to an embodiment of the present disclosure, a plurality of lifting components 1 are pre-embedded inside the embankment 3. When the embankment 3 has a settlement problem, the grouting component 2 injects grout into the lifting components 1 through the pipe body 13. As the grout is injected, both the upper lifting plate and the lower lifting plate are squeezed, and the upper lifting plate moves upward under the action of the upward pressure. It can not only push the upper embankment 3 structure to lift, but also apply pressure to the embankment 3 in the depth direction and the lateral direction of the embankment 3, compact the particles of the embankment 3, and thereby effectively lift and reinforce the settlement embankment 3 through precise grouting technology. As the grout cures inside the lifting components 1, the bearing capacity and stability of the embankment 3 can be improved, and the embankment 3 can also be prevented from settling again.

[0054] According to an embodiment of the present disclosure, the grouting component 2 includes: a grouting outer pipe 21, which is configured to be embedded in the shoulder 31 of the embankment 3, and is provided with a plurality of first openings along the depth direction of the embankment 3. The pipe body 13 is fixedly connected to the grouting outer pipe 21, and the feed ports of the pipe bodies 13 of the plurality of lifting components 1 are aligned with the plurality of first openings in a one-to-one correspondence; and a grouting inner pipe 22, which is removably inserted into the grouting outer pipe 21 and is used to inject grout into one of the plurality of pipe bodies 13.

[0055] According to an embodiment of the present disclosure, the grouting outer pipe 21 is vertically arranged with respect to the surface of the embankment 3. One end of the pipe body 13 can be fixedly connected to the first opening of the grouting outer pipe 21 by means such as gluing, which can not only ensure the stable connection between the feed port of the pipe body 13 and the first opening, but also ensure that the grout does not leak from the connection between the pipe body 13 and the grouting outer pipe 21 during the grouting process; the alignment of the feed port of the pipe body 13 with the first opening can ensure that the grout can accurately enter the lifting component 1 during the grouting process.

[0056] According to an embodiment of the present disclosure, the grouting outer pipe 21 can be a rigid hollow pipe, the outer diameter can be 0.3 - 0.5 m, and the wall thickness can be 0.05 m.

[0057] According to an embodiment of the present disclosure, the grouting inner pipe 22 extends into the grouting outer pipe 21 in a removable manner, and can input the grout from the outside into the interior of the grouting outer pipe 21, and inject it into the designated lifting assembly 1 through the first opening and the feed port; the removability of the grouting inner pipe 22 facilitates the operator to replace and clean the grouting inner pipe 22.

[0058] According to an embodiment of the present disclosure, the outer diameter of the grouting inner pipe 22 can be 0.3 - 0.5 m, and the thickness of the pipe wall can be 0.03 m.

[0059] According to an embodiment of the present disclosure, as a connecting bridge between the grouting inner pipe 22 and the multiple lifting assemblies 1, the grouting outer pipe 21 can ensure that the grout can accurately enter the designated lifting assembly 1 from the grouting inner pipe 22 during grouting, so as to realize the lifting of the embankment 3.

[0060] According to an embodiment of the present disclosure, each grouting inner pipe 22 is provided with a second opening 223, and the second opening 223 is configured to be aligned with one of the multiple first openings and is in fluid communication with the feed port of a pipe body 13, so that the grout enters the pipe body 13 through the grouting inner pipe 22.

[0061] According to an embodiment of the present disclosure, according to the different depths of the lifting assemblies 1 to be activated, a grouting inner pipe 22 with an appropriate depth of the second opening 223 is selected, so as to ensure that the second opening 223 can be aligned with the feed port of the pipe body 13 of the lifting assembly 1 to be activated, and further establish a channel for the flow of the grout.

[0062] According to an embodiment of the present disclosure, the grouting inner pipe 22 can be a hollow pipe, and one end is closed. After the matching grouting inner pipe 22 is inserted into the grouting outer pipe 21, the second opening 223 and the first opening are aligned. At this time, when the grout is injected into the grouting inner pipe 22, the grout first fills the hollow position from the second opening 223 of the grouting inner pipe 22 to the closed end, and then the grout will enter the pipe body 13 through the second opening 223 to complete the grouting of the lifting assembly 1.

[0063] Figure 4 A side view schematically showing a partial structure of an embodiment of the grouting inner pipe 22 of the embankment 3 grouting and lifting device according to an embodiment of the present disclosure is shown.

[0064] According to an embodiment of the present disclosure, the grouting inner tube 22 may include a solid part 221 and a hollow part 222. A second opening 223 is provided at the connection between the solid part 221 and the hollow part 222. The second opening 223 is disposed opposite to the first opening. The grout enters the pipe body 13 through the hollow part 222, the second opening 223, and the first opening of the grouting outer tube 21. Wherein, along the depth direction of the embankment 3, the length of the solid part 221 is the distance from the lifting assembly 1 to the bottom of the embankment 3, and the length of the hollow part 222 is the distance from the lifting assembly 1 to the inlet of the grouting outer tube 21.

[0065] According to an embodiment of the present disclosure, during the construction of the embankment 3, the filling of the embankment 3 and the pre-embedding of the lifting assembly 1 and the grouting assembly 2 are carried out, and it is ensured that the grouting outer tube 21 is fixedly connected to the pipe body 13 of the plurality of lifting assemblies 1 and corresponds one by one. According to the settlement condition of the embankment 3, the number and position of the lifting assemblies 1 to be activated are determined. The grouting inner tube 22 with the depth of the second opening 223 matching the depth of the lifting assembly 1 is inserted into the grouting outer tube 21, and the second opening 223 of the grouting inner tube 22 is aligned with the first opening of the grouting outer tube 21. The grout is injected into the grouting inner tube 22 through an external grouting device. The grout enters the grouting assembly 2 through the grouting inner tube 22, the second opening 223, the first opening, the feed port of the pipe body 13, and the pipe body 13. As the grout is continuously injected, the grout exerts pressure on the lifting plate 11 of the lifting assembly 1, so that the lifting plate on the lifting assembly 1 gradually moves upward, thereby driving the structure of the embankment 3 above the lifting assembly 1 to lift; after the grouting is completed, the grouting inner tube 22 is removed.

[0066] According to an embodiment of the present disclosure, the grouting outer tube 21 includes a horizontal tube and a vertical tube arranged at an angle. The horizontal tube is installed at one end of the vertical tube.

[0067] According to an embodiment of the present disclosure, the grouting outer tube 21 may be composed of a vertical tube.

[0068] According to an embodiment of the present disclosure, the horizontal tube of the grouting outer tube 21 may be removably installed at one end of the vertical tube.

[0069] According to an embodiment of the present disclosure, the horizontal tube and the vertical tube of the grouting outer tube 21 may be integrally formed.

[0070] According to an embodiment of the present disclosure, through the combined design of the horizontal tube and the vertical tube, not only can it avoid external impurities from entering the grouting outer tube 21 through the feed port of the grouting outer tube 21, but also it can achieve effective grouting of the external grouting device.

[0071] According to an embodiment of the present disclosure, the plurality of lifting assemblies 1 are evenly spaced along the depth direction of the embankment 3.

[0072] According to an embodiment of the present disclosure, the lifting components 1 are evenly spaced in the depth direction of the embankment 3, which can effectively disperse the stress and deformation inside the embankment 3, improve the overall stability of the embankment 3, bear part of the load of the embankment 3, and reduce the settlement and deformation of the embankment 3; when the embankment 3 deforms, grouting is carried out to the multiple lifting components 1 arranged at uniform intervals, which can effectively improve the lifting effect of the embankment 3.

[0073] According to an embodiment of the present disclosure, the lifting cover 12 is provided with a plurality of through holes 121 along the length direction of the embankment 3, the multiple grouting components 2 are evenly spaced along the length direction of the embankment 3, and the plurality of through holes 121 of the lifting cover 12 are arranged in one-to-one correspondence and alignment with the multiple grouting components 2.

[0074] According to an embodiment of the present disclosure, by providing a plurality of through holes 121 and a plurality of grouting components 2, the grouting efficiency of the lifting component 1 can be improved, and thus the lifting efficiency of the embankment 3 can be improved.

[0075] According to an embodiment of the present disclosure, the depth of the embankment 3 is H, and n lifting components 1 are arranged at intervals along the depth direction of the embankment 3, where H / 3 ≤ n ≤ H.

[0076] According to an embodiment of the present disclosure, along the depth direction of the embankment 3, one lifting component 1 can be provided every 1 - 3 m, which limits the quantity range of the lifting components 1 in the depth direction of the embankment 3, and can further ensure that the embankment 3 is evenly reinforced in the depth direction and avoid waste of resources.

[0077] According to an embodiment of the present disclosure, the embankment 3 has a settlement cross slope ratio, and the cross slope ratio determines the number of lifting components 1 enabled along the depth direction of the embankment 3.

[0078] According to an embodiment of the present disclosure, the cross slope ratio is the height difference per unit length in the horizontal direction after settlement occurs on the surface of the embankment 3, denoted as i. According to the cross slope ratio of the embankment 3, the number of enabled lifting components 1 is determined. When 0% ≤ i ≤ 0.25%, the number of enabled lifting components 1 is 1 - 2; when 0.25% ≤ i ≤ 0.5%, the number of enabled lifting components 1 is 2 - 3; when i ≥ 0.5%, the number of enabled lifting components 1 is 3 or more.

[0079] According to an embodiment of the present disclosure, according to the uneven settlement condition of the embankment 3, selecting the appropriate number and position of the lifting components 1 for grouting can not only reduce the usage amount and usage cost of the grout, but also accurately repair the settlement condition of the embankment 3. When the embankment 3 subsides again, grouting is carried out to the non-enabled lifting components 1 to ensure that the embankment 3 will not have excessive settlement diseases during its service life.

[0080] According to an embodiment of the present disclosure, the present disclosure further includes a pre-embedding method for an embankment grouting and lifting device, comprising: (1) removing sundries such as vegetation, sundries, and topsoil in the construction area to ensure the cleanliness and flatness of the foundation, and performing necessary treatments in advance according to the nature of the foundation, such as drainage, compaction, or reinforcement, to improve the bearing capacity and stability of the foundation; (2) pre-embedding the grouting outer pipe 21 at the shoulder 31 position, and setting the number of grouting outer pipes 21 and the spacing between multiple grouting outer pipes 21 along the length direction of the embankment 3 according to the width of the lifting assembly 1; (3) placing the lifting assembly 1 at the bottom of the embankment 3, and connecting the pipe body 13 with the grouting outer pipe 21; (4) determining the thickness of each layer of filling according to the design requirements and the type of compaction machinery, usually 15-30 cm, laying the filler evenly at the designated position to ensure the uniformity and consistency of the thickness of the filler. After laying each layer of filler, immediately use compaction machinery such as a roller and a rammer to compact it to reach the design density, usually performing multiple round-trip compactions until the required degree of compaction is achieved; (5) after laying to the pre-embedding height of the next lifting assembly 1, repeat step (3) to pre-embed the lifting assembly 1, and then alternate the filling and the pre-embedding of the lifting assembly 1 until the elevation of the embankment 3 is reached; (6) during the filling process, shape the slope of the embankment 3 at any time to ensure the slope and stability of the slope.

[0081] The embodiments of the present invention have been described above. However, these embodiments are only for illustrative purposes and not for limiting the scope of the present invention. Although the embodiments have been described separately above, this does not mean that the measures in each embodiment cannot be used advantageously in combination. The scope of the present invention is defined by the appended claims and their equivalents. Without departing from the scope of the present invention, those skilled in the art can make various substitutions and modifications, and these substitutions and modifications should all fall within the scope of the present invention.

Claims

1. An embankment grouting and lifting device for lifting a settlement embankment (3), characterized in that, The embankment grouting and lifting device includes: A plurality of lifting components (1), configured to be embedded in the embankment (3) and arranged in parallel at intervals along the depth direction of the embankment (3). Each of the lifting components (1) includes: Two lifting plates (11), arranged in parallel at intervals with respect to the road surface of the embankment (3); A lifting cover (12), sleeved on the periphery of the two lifting plates (11). A through hole (121) is provided at a position of the lifting cover (12) away from the center of the embankment (3); and A pipe body (13), passing through the through hole (121) and extending between the two lifting plates (11); and A grouting component (2), adapted to inject grout into the lifting component (1) through the pipe body (13).

2. The embankment grouting and lifting device according to claim 1, characterized in that The grouting component (2) includes: A grouting outer pipe (21), configured to be embedded in the road shoulder (31) of the embankment (3), and provided with a plurality of first openings along the depth direction of the embankment (3). The pipe body (13) is fixedly connected to the grouting outer pipe (21), and the feed ports of the pipe bodies (13) of the plurality of lifting components (1) are aligned with the plurality of first openings one by one; and A grouting inner pipe (22), removably extending into the grouting outer pipe (21) and used for injecting the grout into one of the plurality of pipe bodies (13).

3. The embankment grouting and lifting device according to claim 2, wherein Each grouting inner pipe (22) is provided with a second opening (223), which is configured to be aligned with one of the plurality of first openings and is in fluid communication with the feed port of the one pipe body (13), so that the grout enters the pipe body (13) through the grouting inner pipe (22).

4. The embankment grouting and lifting device according to claim 2, characterized in that The grouting outer pipe (21) includes a horizontal pipe and a vertical pipe arranged at an angle, and the horizontal pipe is installed at one end of the vertical pipe.

5. The embankment grouting and lifting device according to claim 1, wherein The plurality of lifting components (1) are evenly spaced along the depth direction of the embankment (3).

6. The embankment grouting and lifting device according to claim 1, characterized in that, The lifting cover (12) is provided with a plurality of the through holes (121) along the length direction of the embankment (3). The plurality of grouting components (2) are evenly spaced along the length direction of the embankment (3). The plurality of through holes (121) of the lifting cover (12) are aligned with the plurality of grouting components (2) one by one.

7. The embankment grouting and lifting device according to any one of claims 1-6, characterized in that The depth of the embankment (3) is H, and n lifting components (1) are arranged at intervals along the depth direction of the embankment (3), where H / 3 ≤ n ≤ H.

8. The embankment grouting and lifting device according to any one of claims 1-6, characterized in that, The embankment (3) has a settlement cross slope ratio, and the cross slope ratio determines the number of the lifting components (1) arranged along the depth direction of the embankment (3).

9. The embankment grouting and lifting device according to any one of claims 1-6, characterized in that, The lifting cover (12) is made of an elastic material.

10. The embankment grouting and lifting device according to any one of claims 1-6, characterized in that, The pipe body (13) is made of a flexible material.

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