Road subgrade anti-settlement reinforcing structure

Abstract

The application discloses a kind of road subgrade anti-settling reinforcement structures, it is related to road construction technical field, including: base group, drainage device and early warning device, wherein, drainage device is set in the bottom of base group, early warning device is set below drainage device, and its early warning end is upwards and extends to base group in drainage device and is penetrated.This embodiment of the application is a kind of road subgrade anti-settling reinforcement structures, by setting drainage layer and protection pipe, the overflow water that cannot be drained is guided to protection pipe, using soluble bolt, when subgrade collapses, automatically trigger mechanical warning, and the process does not need any electronic components to participate, reliability is extremely high, effectively solve the security risks that traditional subgrade cannot be warned in extreme weather, suddenly collapse.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and in particular to a roadbed anti-settlement reinforcement structure. Background Technology

[0002] With the rapid development of the social economy, highways have developed greatly in China, gradually forming a crisscrossing highway network that radiates across the country. Roadbed settlement is a common phenomenon that endangers driving safety during highway use. Due to the long-term high load, the roadbed sinks as a whole, causing the road surface to be uneven. When vehicles drive on such road surfaces, there are high safety problems.

[0003] In the prior art, the highway subgrade anti-settlement facility disclosed in CN209039892U involves sequentially setting a sand and gravel layer, a soil and cloth layer, and a concrete layer below the surface base layer. A support plate with a water collection cavity and a drainage pipe are then installed below the concrete layer to drain rainwater that has seeped into the base layer, reducing direct erosion of the subgrade soil by water flow. This solution addresses drainage problems under conventional conditions to a certain extent.

[0004] However, the aforementioned technologies still have limitations. For example, their drainage capacity is limited by the volume of the collection chamber. In the event of continuous heavy rainfall, the amount of rainwater infiltrating will exceed its drainage capacity. At this point, the excess water cannot be drained in time and will remain in the concrete layer and the underlying base layers for an extended period, causing the base materials to soften and their strength to drop sharply, ultimately leading to sudden roadbed collapse. Crucially, this existing technology lacks a failure warning mechanism for roadbed collapse; collapses occur without warning, easily causing serious traffic accidents.

[0005] Therefore, in order to overcome the shortcomings of traditional technologies, a roadbed anti-settlement reinforcement structure is needed. Summary of the Invention

[0006] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0007] To achieve the above objectives, the first aspect of this invention proposes a roadbed anti-settlement reinforcement structure, comprising: a base layer, a drainage device, and an early warning device, wherein the drainage device is disposed at the bottom of the base layer; the early warning device is disposed below the drainage device, and its early warning end extends upward through the drainage device and into the base layer; the early warning device comprises: a diversion layer, a protective pipe, an early warning rod, a soluble pin, a spring, and a sealing plug, wherein the diversion layer is laid at the bottom of the drainage device; the protective pipe is vertically disposed within the diversion layer, and its top end sequentially penetrates the drainage device and the base layer, and the side wall of the protective pipe has a plurality of openings corresponding to the drainage device and the base layer. The system includes a drainage layer with a connected inlet hole; a warning rod that slides inside the protective tube and has a baffle at its bottom, with its top extending to the top opening of the protective tube; a soluble pin fitted onto the warning rod and abutting against the top of the baffle; two ends of a spring connected to the inner bottom of the protective tube and the baffle; and a detachable sealing plug located at the top opening of the protective tube. When water seeps through the drainage layer into the protective tube and soaks the soluble pin, the soluble pin dissolves and loses its strength. The spring releases its elastic force, pushing the baffle and the warning rod upwards, opening the sealing plug and extending above the base layer assembly to form a visual warning.

[0008] In addition, the roadbed anti-settlement reinforcement structure proposed above according to the present invention may also have the following additional technical features:

[0009] Furthermore, the drainage device includes: a support plate, a drainage pipe, and roadbed piles, wherein the support plate is disposed at the bottom of the base layer assembly and has a water collection cavity inside it, and a plurality of first drainage holes are disposed at the top of it, all of which are connected to the water collection cavity, and the drainage layer is located at the bottom of the support plate; the drainage pipe is disposed at the bottom of the support plate and is connected to the water collection cavity; and a plurality of roadbed piles are respectively disposed at the four corners of the bottom of the support plate.

[0010] Furthermore, a slot is provided on one side of the support plate, and an insert plate is provided on the opposite side of the slot.

[0011] Furthermore, the base layer assembly includes: a surface base layer, a sand and gravel layer, a geotextile layer, and a concrete layer, wherein the surface base layer, the sand and gravel layer, the geotextile layer, and the concrete layer are laid sequentially from top to bottom on the support plate; the concrete layer has multiple second drainage holes corresponding to the first drainage holes.

[0012] Furthermore, an annular groove is provided on the inner wall of the opening at the top of the protective tube, and an annular protrusion is provided on the outer wall of the sealing plug to cooperate with the annular groove.

[0013] According to a roadbed anti-settlement reinforcement structure of the present invention, by setting up a diversion layer and a protective pipe, overflow water that cannot be discharged in time by the drainage device is actively guided into the inside of the protective pipe. Utilizing the water-soluble properties of the soluble pin, a mechanical warning is automatically triggered when the roadbed collapses. Moreover, this process does not require the participation of any electronic components, has extremely high reliability, and effectively solves the safety hazard of sudden collapse of traditional roadbeds under extreme weather conditions without warning. Attached Figure Description

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0015] Figure 1 This is a three-dimensional structural diagram of a roadbed anti-settlement reinforcement structure according to an embodiment of the present invention;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of another roadbed anti-settlement reinforcement structure according to an embodiment of the present invention;

[0017] Figure 3 This is a three-dimensional exploded view of a roadbed anti-settlement reinforcement structure according to an embodiment of the present invention;

[0018] Figure 4 This is a three-dimensional cross-sectional view of a roadbed anti-settlement reinforcement structure according to an embodiment of the present invention;

[0019] Figure 5 This is a three-dimensional structural cross-sectional schematic diagram of an early warning device for a roadbed anti-settlement reinforcement structure according to an embodiment of the present invention;

[0020] Figure 6 This is a roadbed anti-settlement reinforcement structure according to an embodiment of the present invention. Figure 5 A magnified structural diagram of part A;

[0021] As shown in the figure:

[0022] 1. Base layer; 11. Surface base layer; 12. Sand and gravel layer; 13. Soil and cloth layer; 14. Concrete layer; 141. Second drainage hole; 2. Drainage device; 21. Support plate; 211. Water collection chamber; 212. First drainage hole; 213. Slot; 214. Insert plate; 22. Drainage pipe; 23. Roadbed pile; 3. Early warning device; 31. Drainage layer; 32. Protective pipe; 321. Water inlet; 322. Annular groove; 33. Early warning rod; 331. Baffle; 34. Soluble pin; 35. Spring; 36. Sealing plug; 361. Annular protrusion. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, with examples of the embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] The following description, in conjunction with the accompanying drawings, describes a roadbed anti-settlement reinforcement structure according to an embodiment of the present invention.

[0025] like Figures 1 to 6 As shown, a roadbed anti-settlement reinforcement structure according to an embodiment of the present invention may include a base layer group 1, a drainage device 2, and an early warning device 3.

[0026] The drainage device 2 is located at the bottom of the base layer group 1, and the early warning device 3 is located below the drainage device 2, with its early warning end extending upward through the drainage device 2 and into the base layer group 1.

[0027] The base layer 1 includes: surface base layer 11, sand and gravel layer 12, geotextile layer 13, and concrete layer 14.

[0028] Among them, the surface base layer 11, the sand and gravel layer 12, the geotextile layer 13 and the concrete layer 14 are laid on the support plate 21 from top to bottom. The concrete layer 14 has a plurality of second drainage holes 141 corresponding to the first drainage hole 212.

[0029] Preferably, multiple reinforcing bars (not shown in the figure) are provided in the concrete layer 14, which can not only enhance the structural strength of the concrete layer 14, but also effectively prevent concrete cracking.

[0030] The drainage device 2 includes: a support plate 21, a drainage pipe 22, and a roadbed pile 23.

[0031] The support plate 21 is located at the bottom of the base layer 1 and has a water collection cavity 211 inside it. Multiple first drainage holes 212 are located on its top and are all connected to the water collection cavity 211. The drainage layer 31 is located at the bottom of the support plate 21. The drainage pipe 22 is located at the bottom of the support plate 21 and is connected to the water collection cavity 211. Multiple roadbed piles 23 are respectively located at the four corners of the bottom of the support plate 21.

[0032] It should be noted that a slot 213 is provided on one side of the support plate 21, and an insert plate 214 is provided on the opposite side of the slot 213, which can splice multiple inventions together.

[0033] It should be noted that the drain pipe 22 is L-shaped, with one horizontal end of the drain pipe 22 extending to both sides of the surface base layer 11 in the width direction.

[0034] It should be noted that there are multiple drainage pipes 22, and the horizontal ends of the drainage pipes 22 are connected by connecting pipes. Multiple sets of drainage pipes 22 in this invention can be connected by threaded pipes, which can ensure that the water in each drainage pipe 22 eventually flows out to both sides of the roadbed.

[0035] In another possible embodiment of the present invention, the roadbed pile 23 is a precast concrete pipe pile with a heating module (not shown in the figure) pre-embedded inside. A humidity sensor (not shown in the figure) is installed in the opening on the bottom side wall of the pile, and a waterproof controller (not shown in the figure) is installed on the top of the pile. The two are electrically connected in sequence and powered by an external solar panel. Under normal working conditions, the controller is in a dormant state. When the humidity sensor detects that the moisture content of the soil at the bottom of the pile exceeds a preset threshold, the controller starts the heating module to dry the soil until the moisture content drops to a safe range and then automatically shuts off.

[0036] The warning device 3 includes: a drainage layer 31, a protective tube 32, a warning rod 33, a soluble pin 34, a spring 35, and a sealing plug 36.

[0037] The drainage layer 31 is laid at the bottom of the drainage device 2. The protective pipe 32 is vertically installed inside the drainage layer 31, and its top end passes through the drainage device 2 and the base layer 1 in sequence. Several water inlet holes 311 connected to the drainage layer 31 are opened on the side wall of the protective pipe 32. The warning rod 33 slides inside the protective pipe 32, and its bottom is provided with a baffle 331. Its top end extends to the top opening of the protective pipe 32. The soluble pin 34 is sleeved on the warning rod 33 and abuts against the top of the baffle 331. The two ends of the spring 35 are connected to the inner bottom of the protective pipe 32 and the baffle 331. The sealing plug 36 is detachably installed at the top opening of the protective pipe 32.

[0038] It should be noted that an annular groove 321 is provided on the inner wall of the top opening of the protective tube 32, and an annular protrusion 361 that cooperates with the annular groove 321 is provided on the outer wall of the sealing plug 36, which facilitates the installation and ejection of the sealing plug 36.

[0039] Specifically, the soluble pin 34 is made of a water-degradable material, preferably a pressed gypsum column, a polyvinyl alcohol biodegradable plastic, or a water-soluble pressed pharmaceutical column.

[0040] Specifically, firstly, the drainage device 2 and the early warning device 3 are driven into the soil through the roadbed piles 23 and the protective pipes 32. Secondly, a concrete layer 14 is laid on top of the support plate 21, with the second drainage hole 141 on the concrete layer 14 aligned with the first drainage hole 212 on the support plate 21. Then, a soil cloth layer 13 is laid on top of the concrete layer 14, and a sand and gravel layer 12 is laid on top of the soil cloth layer 13. After the sand and gravel layer 12 is compacted, the surface base layer 11 is finally laid.

[0041] Under normal rainfall conditions, rainwater that seeps into the base layer 1 enters the water collection chamber 211 through the second drainage hole 141 of the concrete layer 14 and the first drainage hole 212 of the support plate 21, and is discharged to the outside of the roadbed area in a timely manner through the drainage pipe 22.

[0042] When encountering continuous heavy rainfall, exceeding the discharge capacity of the drain pipe 22, the water level in the collection chamber 211 rises continuously. Excess rainwater, unable to be discharged through the drain pipe 22 in time, overflows from both sides of the support plate 21, seeping downwards into the drainage layer 31 at the bottom of the support plate 21, and then is guided to the inlet hole 311 of the protective pipe 32. Rainwater enters the interior of the protective pipe 32 through the inlet hole 311, gradually soaking the soluble pin 34. The soluble pin 34 gradually dissolves under the continuous soaking of rainwater. At this time, due to the elastic potential energy of the spring 35, the baffle 331 and the warning rod 33 move upwards. The upward-moving warning rod 33 pushes against the sealing plug 36, causing the sealing plug 36 to be ejected and detached. The top of the warning rod 33 extends above the surface base layer 11, forming a clearly raised warning sign.

[0043] At this time, maintenance personnel or drivers of passing vehicles can directly observe the raised warning pole 33 with the naked eye, thereby determining that there has been serious water accumulation inside the roadbed at this location, posing a risk of collapse, and requiring timely emergency repairs and maintenance.

[0044] In summary, the roadbed anti-settlement reinforcement structure according to an embodiment of the present invention, by setting up a diversion layer 31 and a protective pipe 32, actively guides the overflow water that cannot be discharged in time by the drainage device 2 into the interior of the protective pipe 32. Utilizing the water-soluble properties of the soluble pin 34, a mechanical warning is automatically triggered when the roadbed collapses. Moreover, this process does not require the participation of any electronic components, has extremely high reliability, and effectively solves the safety hazard of sudden collapse of traditional roadbeds under extreme weather conditions without warning.

[0045] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A roadbed settlement prevention and reinforcement structure, characterized in that, include: The basic unit (1), drainage device (2), and early warning device (3) are, among which, The drainage device (2) is located at the bottom of the base layer assembly (1); The warning device (3) is located below the drainage device (2), and its warning end extends upward through the drainage device (2) and into the base layer group (1); The warning device (3) includes: a drainage layer (31), a protective tube (32), a warning rod (33), a soluble pin (34), a spring (35), and a sealing plug (36), wherein, The drainage layer (31) is laid at the bottom of the drainage device (2); The protective pipe (32) is vertically installed inside the drainage layer (31), and its top end passes through the drainage device (2) and the base layer group (1) in sequence. Several water inlet holes (321) connected to the drainage layer (31) are opened on the side wall of the protective pipe (32). The warning rod (33) slides inside the protective tube (32), and its bottom is provided with a baffle (331), and its top extends to the top opening of the protective tube (32); The soluble pin (34) is sleeved on the warning rod (33) and abuts against the top of the baffle (331); The two ends of the spring (35) are connected to the inner bottom of the protective tube (32) and the baffle (331); The sealing plug (36) is detachably disposed at the top opening of the protective tube (32); When water seeps into the protective pipe (32) through the drainage layer (31) and soaks the soluble pin (34), the soluble pin (34) dissolves and loses its strength. The spring (35) releases its elastic force to push the baffle (331) and the warning rod (33) upward, opening the sealing plug (36) and extending above the base group (1) to form a visual warning.

2. The roadbed anti-settlement reinforcement structure according to claim 1, characterized in that, The drainage device (2) includes: a support plate (21), a drainage pipe (22), and roadbed piles (23), wherein, The support plate (21) is located at the bottom of the base layer group (1), and a water collection cavity (211) is provided inside it. Multiple first drainage holes (212) are provided on its top, and all of them are connected to the water collection cavity (211). The drainage layer (31) is located at the bottom of the support plate (21). The drain pipe (22) is located at the bottom of the support plate (21) and is connected to the water collection chamber (211). Multiple roadbed piles (23) are respectively set at the four corners of the bottom of the support plate (21).

3. The roadbed anti-settlement reinforcement structure according to claim 2, characterized in that, A slot (213) is provided on one side of the support plate (21), and an insert plate (214) is provided on the opposite side of the slot (213).

4. The roadbed anti-settlement reinforcement structure according to claim 2, characterized in that, The base layer group (1) includes: a surface base layer (11), a sand and gravel layer (12), a geotextile layer (13), and a concrete layer (14), wherein, The surface base layer (11), the sand and gravel layer (12), the geotextile layer (13) and the concrete layer (14) are laid sequentially from top to bottom on the support plate (21); The concrete layer (14) has multiple second drainage holes (141) corresponding to the first drainage hole (212).

5. A roadbed anti-settlement reinforcement structure according to claim 1, characterized in that, The inner wall of the top opening of the protective tube (32) is provided with an annular groove (322), and the outer wall of the sealing plug (36) is provided with an annular protrusion (361) that cooperates with the annular groove (322).

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