Early warning device and method for sudden collapse of highway roadbed and bridge

Abstract

The invention relates to the technical field of road early warning, in particular to an expressway roadbed and bridge sudden collapse early warning device and method.The early warning device comprises a beacon rod body, the head of the beacon rod body is provided with a first beacon sphere, and the tail of the beacon rod body is provided with a second beacon sphere; a plurality of beacon rod bodies are arranged in an expressway subgrade body in an easy-to-collapse area in an end-to-end adjacent manner or a bridge main body is located below a bridge floor, and extend along a vehicle driving direction to form a beacon belt for early warning of collapse. The adjacent first beacon sphere and second beacon sphere are matched and collided to form the loop signal A, the loop signal A is interrupted during collapse to perform early warning, the early warning response speed is high, the timeliness is high, and according to the specific point location of the formed signal loop B or the signal loop C, the early warning effect is good. According to the method, the specific point location of the collapse area of the expressway roadbed body or the bridge main body can be judged, so that accurate early warning of the position of the collapse area is realized, and more accurate early warning signals are provided for coming and going vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of road early warning, and in particular to a device and method for early warning of sudden collapse of a highway roadbed and a bridge. Background Art

[0002] Highway roadbeds and bridges may suffer from structural aging and fatigue, or even collapse, due to unstable soil or foundation, improper design and construction, frequent passage of overloaded or overweight vehicles, extreme weather conditions, and insufficient maintenance. The collapse of highway roadbeds and bridges may cause serious hazards, including casualties and traffic accidents, resulting in large amounts of property losses and economic impacts.

[0003] However, the existing highway and bridge systems cannot provide effective early warning for sudden collapse of highway roadbeds and bridges. Instead, they can only rely on simple warning signs to warn subsequent vehicles to stop after the collapse occurs. This warning mode still causes serious traffic accidents. Therefore, it is particularly important to develop an early warning device and method for sudden collapse of highway roadbeds and bridges. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for early warning of sudden collapse of highway roadbed and bridge to solve the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions.

[0006] A device for early warning of sudden collapse of highway roadbed and bridge comprises a beacon pole body, wherein the head of the beacon pole body has a first beacon sphere, and the tail of the beacon pole body has a second beacon sphere; a plurality of beacon pole bodies are arranged adjacent to each other in the highway roadbed body in a collapse-prone area or where the bridge body is located below the bridge deck, and extend along the vehicle travel direction to form a beacon belt for early warning of collapse; the first beacon sphere at the head of the beacon pole body and the second beacon sphere at the tail of the adjacent beacon pole body are correspondingly abutted and matched; when each adjacent first beacon sphere and second beacon sphere are equally and flushly abutted, a signal loop A connected to a traffic monitoring system is formed in the beacon belt; when collapse occurs somewhere in the beacon belt, the first beacon sphere and the second beacon sphere are misaligned, the signal loop A is interrupted, the traffic monitoring system is warned of sudden collapse of the highway roadbed body or the bridge body, and the warned collapse information is uploaded to each navigation software to assist passing vehicles in early warning of collapse.

[0007] The adjacent first beacon sphere and the second beacon sphere are matched and collided to form a loop signal A. When a collapse occurs, the loop signal A is interrupted and the traffic control system is warned. The traffic control system uploads the collapse warning information to various navigation software and platforms to remind passing vehicles to pay attention. The warning speed is fast and timely, which effectively reduces the occurrence of subsequent accidents and facilitates immediate rescue.

[0008] Preferably, an arc-shaped contact piece A is embedded in the arc top of the outer wall of the first beacon sphere away from the beacon pole body, and an arc-shaped contact piece B is embedded in the arc top of the outer wall of the second beacon sphere away from the beacon pole body; when each adjacent arc-shaped contact piece A and arc-shaped contact piece B are in contact with each other at the same height, a signal loop A connected to the traffic monitoring system is formed in the beacon band.

[0009] Preferably, guide rods are fixed at both ends of the beacon rod body; guide holes are provided on the first beacon sphere and the second beacon sphere, and cavities corresponding to the guide holes are provided in the first beacon sphere and the second beacon sphere; the first beacon sphere and the second beacon sphere are slidably mounted on the corresponding guide rods, and the guide rods extend into the cavities in the first beacon sphere or the second beacon sphere; end blocks are fixed to the ends of the guide rods located in the cavities, and horizontally extending springs are provided in the cavities of the first beacon sphere and the second beacon sphere; one end of the spring is fixed to the side of the end block facing away from the guide rod, and the other end is fixed to the end wall in the cavities; when adjacent arc-shaped contacts A and arc-shaped contacts B are in contact with each other at the same height to form a signal loop A, each spring is in a compressed and force-storing state.

[0010] Preferably, each end block is provided with a contact A on one side close to the corresponding beacon rod body, and each cavity is provided with a contact B on the inner end wall on one side close to the corresponding beacon rod body, and the contact B corresponds to the contact A in the same cavity.

[0011] Preferably, when the highway subgrade or bridge body completely collapses, causing the adjacent first beacon sphere and second beacon sphere to be completely separated, the end block in the first beacon sphere near the collapse site comes into contact with the contact B under the elastic push of the spring to form a signal loop B, and the end block in the second beacon sphere near the collapse site comes into contact with the contact B under the elastic push of the spring to form a signal loop C; based on the specific locations of the formed signal loop B or signal loop C, the locations of the collapsed areas of the highway subgrade or bridge body can be determined, thereby achieving accurate early warning of the collapsed area.

[0012] Preferably, a cover is provided on the outside of the connection between two adjacent beacon rods, and the adjacent first beacon sphere and the second beacon sphere are located in the cover; a fracture crack is provided in the middle of the cover so as to break in case of collapse.

[0013] Preferably, positioning seats are fixedly sleeved in the middle of each beacon rod body, and positioning holes are provided at the bottom of each positioning seat; positioning rods are embedded at corresponding positions in the highway subgrade body or the bridge main body, and the positioning rods are inserted into the corresponding positioning holes to achieve precise positioning and arrangement of each beacon rod body.

[0014] Preferably, through threading holes are provided on both sides of the cover body, and fastening bolts are inserted into the threading holes; fixing holes for the fastening bolts to be inserted into are provided near both ends of the beacon rod body; fastening nuts are provided on each fastening bolt.

[0015] The present invention also provides a sudden collapse warning method for highway subgrades and bridges, and the specific warning method is as follows:

[0016] Arrange the warning device in the highway subgrade body or in the bridge main body below the bridge deck to form a beacon belt;

[0017] If there is a signal loop A in the beacon belt, it means that there is no collapse in the beacon belt;

[0018] When a collapse occurs at a certain place in the beacon belt, the signal loop A is interrupted, and the traffic monitoring system uploads the collapse information warned to each platform;

[0019] A signal loop B is formed in the first beacon sphere near the collapse location, and a signal loop C is formed in the second beacon sphere near the collapse location. According to the specific positions of the formed signal loop B or signal loop C, the specific position of the collapse area is judged.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0021] The present invention uses the adjacent first beacon sphere and the second beacon sphere to match and contact to form a loop signal A. When a collapse occurs, the loop signal A is interrupted and warned by the traffic control system. The traffic control system uploads the collapse warning information to each navigation software and platform to remind passing vehicles to pay attention. The warning speed is fast and the timeliness is high, effectively reducing the occurrence of later accidents and facilitating immediate rescue.

[0022] The present invention uses the contact heads A and B arranged in the first beacon sphere and the second beacon sphere to contact and cooperate, and can respectively form a loop signal B or a loop signal C after the collapse. According to the specific positions of the formed signal loop B or signal loop C, the specific position of the collapse area of the highway subgrade body or the bridge main body can be judged, thereby realizing precise warning of the collapse area position and providing a more accurate warning signal for passing vehicles, further reducing casualties and property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the partial structure of the present invention;

[0024] Figure 2 Schematic diagram of the arrangement of the beacon rod bodies in the present invention;

[0025] Figure 3 is Figure 2 Schematic diagram of the sectional structure shown;

[0026] Figure 4 is Figure 3 Enlarged schematic diagram of the structure at position A in;

[0027] Figure 5 is Figure 1 Schematic diagram of the sectional structure shown;

[0028] Figure 6 is Figure 5 Enlarged schematic diagram of the structure at position B in;

[0029] Figure 7 is Figure 6 Enlarged schematic diagram of the structure at position C in;

[0030] Figure 8 Schematic diagram of the present warning device arranged in the highway subgrade;

[0031] Figure 9 Schematic diagram of the present warning device arranged in the bridge main body;

[0032] Figure 10 Schematic diagram of the offset contact structure between two adjacent beacon spheres;

[0033] Figure 11 Schematic diagram of forming signal circuit C in the second beacon sphere;

[0034] Figure 12 Schematic diagram of forming signal circuit B in the first beacon sphere.

[0035] In the figure: 01, guide hole; 02, hole cavity; 03, highway subgrade body; 04, bridge main body; 05, positioning seat; 051, positioning hole; 052, positioning rod; 1, beacon rod body; 101, fixing hole; 2, first beacon sphere; 21, arc-shaped contact piece A; 3, second beacon sphere; 31, arc-shaped contact piece B; 4, guide rod; 5, end block; 6, spring; 7, contact head A; 8, contact head B; 9, cover body; 901, threading hole; 902, fastening bolt; 903, fastening nut; 91, fracture seam. Specific embodiments

[0036] Please refer to Figures 1 - 12 , the present invention provides a sudden collapse warning device for highway subgrades and bridges. The embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

[0037] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct communication or an indirect communication through an intermediate medium. Among them, "fixing" means that they are connected to each other and the relative positional relationship after connection remains unchanged. The orientation terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only with reference to the direction of the attached drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the embodiments of the present invention.

[0038] In the embodiments of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0039] In the embodiments of the present invention, "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0040] The reference to "one embodiment" or "some embodiments" etc. described in this specification means that a specific feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present invention. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0041] The warning device includes a beacon rod body 1. The head of the beacon rod body 1 has a first beacon sphere 2, and the tail has a second beacon sphere 3. A number of beacon rod bodies 1 are arranged adjacent to each other at the head and tail in the highway subgrade 03 in the prone-to-collapse area or under the bridge deck of the bridge main body 04, and extend along the vehicle driving direction to form a beacon belt for warning of collapses. The first beacon sphere 2 at the head of the beacon rod body 1 is in corresponding abutting fit with the second beacon sphere 3 at the tail of the adjacent beacon rod body 1. When all the adjacent first beacon spheres 2 and second beacon spheres 3 are at the same height and in flush contact, a signal circuit A connected to the traffic monitoring system is formed within the beacon belt. Specifically, when all the adjacent first beacon spheres 2 and second beacon spheres 3 are at the same height and in flush contact, a series circuit extending along the length direction of the road or bridge is formed, and through processing, the signal circuit A is obtained. The specific processing method adopts the prior art and will not be disclosed in detail. In addition, how the signal circuit A is connected to the traffic monitoring system adopts the prior art and will not be elaborated in detail here.

[0042] When a collapse occurs at a certain location within the beacon belt, the first beacon sphere 2 and the second beacon sphere 3 are misaligned, causing the series circuit to break, resulting in the interruption of the signal circuit A. The traffic monitoring system warns of the sudden collapse of the highway subgrade 03 or the bridge main body 04 and uploads the warned collapse information to various navigation software to assist passing vehicles in warning of the collapse. In addition, the traffic monitoring system can upload the warned collapse information to other platforms so that the personnel in each vehicle can obtain the warning information in a timely manner to reduce the occurrence of accidents.

[0043] As Figure 4 shown, an arc-shaped contact piece A21 is embedded at the arc top of the outer wall of the first beacon sphere 2 facing away from the beacon rod body 1, and an arc-shaped contact piece B31 is embedded at the arc top of the outer wall of the second beacon sphere 3 facing away from the beacon rod body 1. When all the adjacent arc-shaped contact pieces A21 and arc-shaped contact pieces B31 are at the same height and in flush contact, the adjacent arc-shaped contact pieces A21 and arc-shaped contact pieces B31 are used to connect and close the series circuit, and thus a signal circuit A connected to the traffic monitoring system can be formed within the beacon belt.

[0044] As Figure 4As shown in the figure, guide rods 4 are fixed at both ends of the beacon rod body 1; guide holes 01 are provided on both the first beacon sphere 2 and the second beacon sphere 3, and cavity holes 02 corresponding to and communicating with the guide holes 01 are provided inside the first beacon sphere 2 and the second beacon sphere 3; the first beacon sphere 2 and the second beacon sphere 3 are both slidably sleeved on the corresponding guide rods 4, and the guide rods 4 extend into the cavity holes 02 inside the first beacon sphere 2 or the second beacon sphere 3; end blocks 5 are fixed at the ends of the guide rods 4 located inside the cavity holes 02, and horizontal springs 6 are provided inside the cavity holes 02 of each first beacon sphere 2 and the second beacon sphere 3; one ends of the springs 6 are respectively fixed to the sides of the end blocks 5 facing away from the guide rods 4, and the other ends are respectively fixed to the inner end walls of the cavity holes 02; when the adjacent arc-shaped contact pieces A21 and arc-shaped contact pieces B31 are all in contact with each other at the same height to form a signal circuit A, each spring 6 is in a compressed and energy-storing state.

[0045] When the adjacent first beacon sphere 2 and the second beacon sphere 3 are in contact with each other correspondingly, the springs 6 inside the cavity holes 02 of each first beacon sphere 2 and the second beacon sphere 3 are all in a compressed and energy-storing state. With the support of the elastic force of the springs 6, it can ensure that the contact between the first beacon sphere 2 and the second beacon sphere 3 is firm when there is no collapse, and avoid the situation where the first beacon sphere 2 or the second beacon sphere 3 retracts, resulting in the arc-shaped contact piece A21 and the arc-shaped contact piece B31 being unable to contact normally to form a circuit signal A.

[0046] Contact heads A7 are provided on one side of each end block 5 close to the corresponding beacon rod body 1, and contact heads B8 are provided on the inner end walls of one side of each cavity hole 02 close to the corresponding beacon rod body 1. The contact heads B8 are in contact and cooperate with the contact heads A7 inside the same cavity hole 02.

[0047] Each beacon rod body 1 extends along the length direction of the road or bridge, and the beacon rod bodies 1 with different numbers represent different positions.

[0048] When the highway subgrade body 03 or the bridge main body 04 completely collapses, the adjacent first beacon sphere 2 and the second beacon sphere 3 at the corresponding position will be completely separated. As Figure 12 shown in the figure, during the collapse, the adjacent first beacon sphere 2 and the second beacon sphere 3 at the position corresponding to the collapsed part will be completely separated. The end block 5 inside the first beacon sphere 2 that is completely separated from the second beacon sphere 3 can move relatively to the side close to the beacon rod body 1 under the elastic pushing action of the spring 6. Finally, the end block 5 is in contact and fits with the contact head B8, forming a signal circuit B for accessing the traffic monitoring system.

[0049] Similarly, as Figure 11 shown in the figure, the end block 5 inside the second beacon sphere 3 that is completely separated from the first beacon sphere 2 moves relatively to the side close to the beacon rod body 1 under the elastic pushing action of the spring 6, and finally is in contact and fits with the contact head B8, forming a signal circuit C for accessing the traffic monitoring system.

[0050] The generated signal loop B and signal loop C are mainly distributed on both sides of the collapsed area. According to the specific points of the formed signal loop B or signal loop C, the points where the collapsed area of ​​the highway roadbed 03 or the bridge body 04 occurs can be determined, thereby achieving accurate early warning of the collapsed area.

[0051] like Figure 6 As shown, a cover body 9 is provided on the outside of the connection between two adjacent beacon pole bodies 1, and the adjacent first beacon sphere 2 and second beacon sphere 3 are located in the cover body 9. After the beacon pole bodies 1 are arranged in sequence, the cover body 9 can be used to cover the adjacent first beacon sphere 2 and second beacon sphere 3, so as to protect the first beacon sphere 2 and second beacon sphere 3 when the road is paved and the bridge is cast, so as to prevent the first beacon sphere 2 and second beacon sphere 3 from being fixed to the roadbed or the bridge casting body and being unable to perform early warning work.

[0052] In addition, if Figure 6 , Figure 7 and Figure 10 As shown, a broken crack 91 is provided in the middle of the cover body 9 so that it can break when collapsing. When collapse occurs, the cover body 9 can be broken and separated into two parts due to the existence of the broken crack 91, so that the first beacon sphere 2 or the second beacon sphere 3 can move relative to each other to generate loop signal B or loop signal C.

[0053] Secondly, both sides of the cover body 9 are provided with through-through holes 901, and fastening bolts 902 are inserted in the through-holes 901; fixing holes 101 for matching and inserting the fastening bolts 902 are provided near both ends of the beacon pole body 1; each fastening bolt 902 is equipped with a fastening nut 903, and the cover body 9 is respectively mounted on the ends of the beacon pole body 1 on both sides, and then the fastening bolts 902 inserted in the through-holes 901 are inserted into the fixing holes 101 on the beacon pole body 1, and then the fastening nuts 903 are tightened on the fastening bolts 902, so that the cover body 9 and the beacon pole body 1 can be fixed.

[0054] A positioning seat 05 is fixedly mounted in the middle of each beacon pole body 1, and a positioning hole 051 is provided at the bottom of each positioning seat 05; positioning rods 052 are pre-buried at corresponding positions in the highway roadbed 03 or the bridge body 04, and the positioning rods 052 are matched and inserted into the corresponding positioning holes 051 to achieve precise positioning and arrangement of each beacon pole body 1.

[0055] By inserting the positioning rod 052 pre-buried in the highway roadbed 03 or the bridge body 04 into the positioning hole 051, each beacon pole body 1 can be positioned, and the stability of the beacon pole body 1 is guaranteed after the highway is paved or the bridge body is cast.

[0056] The present invention also provides a method for early warning of sudden collapse of highway roadbed and bridge, and the specific early warning method is as follows:

[0057] The early warning device is arranged in the highway roadbed 03 or in the bridge body 04 below the bridge deck to form a beacon belt;

[0058] When the adjacent first beacon spheres 2 and second beacon spheres 3 are in contact with each other at the same height, a signal loop A connected to the traffic monitoring system is formed in the beacon band. The existence of the signal loop A indicates that there is no collapse in the beacon band.

[0059] When a collapse occurs somewhere in the beacon band, the arc-shaped contact piece A21 and the arc-shaped contact piece B31 are dislocated and separated, the signal loop A is interrupted, and the traffic monitoring system warns of a sudden collapse of the highway roadbed 03 or the bridge body 04, and uploads the collapse information to various navigation software to assist vehicles in carrying out collapse warnings;

[0060] When a certain place in the beacon band collapses completely, causing the adjacent first beacon sphere 2 and second beacon sphere 3 to be completely separated, the end block 5 in the first beacon sphere 2 near the collapse comes into contact with the contact B8 under the elastic push of the spring 6, forming a signal loop B. The end block 5 in the second beacon sphere 3 near the collapse comes into contact with the contact B8 under the elastic push of the spring 6, forming a signal loop C. According to the specific points of the formed signal loop B or signal loop C, the specific points of the collapsed area of ​​the highway roadbed 03 or the bridge body 04 can be determined, thereby achieving accurate early warning of the location of the collapsed area.

[0061] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A sudden collapse warning device for highway roadbed and bridge, characterized by: It comprises a beacon pole body (1), wherein the beacon pole body (1) has a first beacon sphere (2) at the head and a second beacon sphere (3) at the tail; A plurality of beacon poles (1) are arranged adjacent to each other in a highway roadbed (03) in a collapse-prone area or a bridge body (04) below a bridge deck and extend along a vehicle travel direction to form a beacon belt for early warning of collapse; The first beacon sphere (2) at the head of the beacon pole body (1) and the second beacon sphere (3) at the tail of the adjacent beacon pole body (1) are in corresponding abutment with each other; When the first beacon spheres (2) and the second beacon spheres (3) adjacent to each other are in contact with each other at the same height, a signal loop A connected to the traffic monitoring system is formed in the beacon band; When a collapse occurs somewhere within the beacon band, the first beacon sphere (2) and the second beacon sphere (3) are misaligned, the signal loop A is interrupted, and the traffic monitoring system warns of a sudden collapse of the highway roadbed (03) or the bridge body (04), and uploads the warned collapse information to various navigation software to assist passing vehicles in providing collapse warnings.

2. The sudden collapse warning device for highway roadbed and bridge according to claim 1 is characterized by: A curved contact piece A (21) is embedded at the top of the arc on the outer wall of the first beacon sphere (2) away from the beacon pole (1), and a curved contact piece B (31) is embedded at the top of the arc on the outer wall of the second beacon sphere (3) away from the beacon pole (1); When the adjacent arc-shaped contact pieces A (21) and the arc-shaped contact pieces B (31) are in contact with each other at the same height, a signal loop A connected to the traffic monitoring system is formed in the beacon band.

3. The device for early warning of sudden collapse of highway roadbed and bridge according to claim 2, characterized in that: Guide rods (4) are fixed to both ends of the beacon rod body (1); The first beacon sphere (2) and the second beacon sphere (3) are both provided with guide holes (01), and the first beacon sphere (2) and the second beacon sphere (3) are both provided with cavities (02) corresponding to and communicating with the guide holes (01); The first beacon sphere (2) and the second beacon sphere (3) are both slidably mounted on the corresponding guide rod (4), and the guide rod (4) extends into the cavity (02) in the first beacon sphere (2) or the second beacon sphere (3); An end block (5) is fixed to the end of the guide rod (4) located in the hole (02), and a horizontally extending spring (6) is provided in the hole (02) of each of the first beacon sphere (2) and the second beacon sphere (3); One end of the spring (6) is fixed to a side of the end block (5) facing away from the guide rod (4), and the other end is fixed to an inner end wall of the cavity (02); When the adjacent arc-shaped contact pieces A (21) and the arc-shaped contact pieces B (31) are in flush contact with each other at the same height to form a signal loop A, each of the springs (6) is in a compressed and force-accumulating state.

4. An early warning device for sudden collapse of highway subgrade and bridge, according to claim 3, characterized in that: On one side of each of the end blocks (5) close to the corresponding signal pole body (1), a contact A (7) is provided, and on the inner end wall of each of the hole cavities (02) close to the corresponding signal pole body (1), a contact B (8) is provided, and the contact B (8) is in contact and cooperation with the contact A (7) in the same hole cavity (02).

5. An early warning device for sudden collapse of highway subgrade and bridge, according to claim 4, characterized in that: When the highway subgrade body (03) or the bridge main body (04) completely collapses, causing the adjacent first beacon sphere (2) and the second beacon sphere (3) to be completely separated, the end block (5) in the first beacon sphere (2) near the collapse location is in elastic contact with the contact B (8) under the elastic pushing action of the spring (6), forming a signal loop B, and the end block (5) in the second beacon sphere (3) near the collapse location is in elastic contact with the contact B (8) under the elastic pushing action of the spring (6), forming a signal loop C; According to the specific positions of the formed signal loop B or signal loop C, the positions of the collapse areas of the highway subgrade body (03) or the bridge main body (04) can be judged, realizing accurate early warning of the positions of the collapse areas.

6. An early warning device for sudden collapse of highway subgrade and bridge, according to claim 1, characterized in that: A cover body (9) is sleeved outside the connection part of two adjacent signal pole bodies (1), and the adjacent first beacon sphere (2) and the second beacon sphere (3) are located inside the cover body (9); A fracture seam (91) is provided in the middle of the cover body (9) for fracture during collapse.

7. An early warning device for sudden collapse of highway subgrade and bridge, according to claim 1, characterized in that: A positioning seat (05) is fixedly sleeved in the middle of each signal pole body (1), and a positioning hole (051) is provided at the bottom of each positioning seat (05); Positioning rods (052) are pre-buried at corresponding positions in the highway subgrade body (03) or the bridge main body (04), and the positioning rods (052) are inserted into the corresponding positioning holes (051) to realize the precise positioning and arrangement of each signal pole body (1).

8. An early warning device for sudden collapse of highway subgrade and bridge, according to claim 6, characterized in that: Penetrating holes (901) are provided on both sides of the cover body (9), and fastening bolts (902) are inserted into the penetrating holes (901); Fixing holes (101) for the fastening bolts (902) to be inserted are provided near both ends of the signal pole body (1); Fastening nuts (903) are provided on each of the fastening bolts (902).

9. An early warning method for sudden collapse of highway subgrade and bridge, using the early warning device for sudden collapse of highway subgrade and bridge according to any one of claims 1-8, characterized in that: The specific early warning method is as follows: Arrange the warning device inside the highway subgrade body (03) or inside the bridge main body (04) below the bridge deck to form a beacon belt; If there is a signal loop A in the beacon belt, it means that there is no collapse in the beacon belt; When a collapse occurs at a certain place in the beacon belt, the signal loop A is interrupted, and the traffic monitoring system uploads the collapsed information warned to each platform; A signal loop B is formed inside the first beacon sphere (2) near the collapse, and a signal loop C is formed inside the second beacon sphere (3) near the collapse. According to the specific positions of the formed signal loop B or signal loop C, the specific position of the collapse area is judged.

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