Tunnel base reinforcing device

Abstract

The utility model relates to the technical field of tunnel base reinforcing, and discloses a tunnel base reinforcing device which comprises an inverted arch, the front side and the rear side of the inverted arch are fixedly connected with first baffles, a reinforcing mechanism is arranged in the inverted arch and used for increasing the supporting force of a road, and adjusting mechanisms are arranged in the two first baffles and used for adjusting the supporting force of the road. The adjusting mechanism is used for adjusting the height of the first baffles, the tops of the two first baffles are fixedly connected with a road surface, the reinforcing mechanism comprises a plurality of supporting columns, and the bottoms of the multiple supporting columns are arranged at the bottom of the inner side of the inverted arch. The X-shaped frames are connected with the first baffles to form a triangular frame, the supporting rods enhance stability, the bolts penetrate through the soil layer to be connected with the scattered weight assembly, loads are evenly transmitted through a multi-stage pressure scattering system, the concrete layer is in rigid connection with the internal structure of the inverted arch, local stress concentration is avoided, and the bearing capacity of the base is improved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel foundation reinforcement technology, and in particular to a tunnel foundation reinforcement device. Background Technology

[0002] Tunnel foundation reinforcement devices are engineering structures or equipment used to enhance the bearing capacity, stability, and durability of tunnel foundations. They are used to address structural safety hazards caused by poor geological conditions, settlement, and weak soil in tunnel foundations. They can enhance the support force of the foundation on the tunnel foundation and prevent structural cracking and deformation caused by insufficient foundation bearing capacity.

[0003] The tunnel foundation, constructed with concrete piles and steel pipe piles, transfers loads to deep, stable strata, forming a reliable load-bearing system. This plays a crucial role in both new and existing tunnel repair. However, during long-term operation, pile foundation reinforcement devices face the risk of decreased stability. Currently, most pile foundation reinforcement devices utilize bored piles or precast piles, connected to the tunnel foundation via pile caps. In practice, the piles are subjected to complex dynamic and static loads, groundwater erosion, and soil creep, leading to a gradual decrease in friction. The internal steel reinforcement is prone to corrosion due to chemical erosion from groundwater, reducing the structural strength of the piles. Poor construction techniques at the connection between the pile cap and the pile can cause stress concentration, leading to cracking at the connection under repeated loading. Consequently, the load-bearing capacity and overall stability of the pile foundation reinforcement device decline significantly after prolonged use. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a tunnel foundation reinforcement device, which aims to improve the problem that the pile body is subjected to complex dynamic and static loads, groundwater erosion and soil creep for a long time in the existing technology, which causes the pile foundation reinforcement device to have a significant decline in bearing capacity and overall stability after long-term use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tunnel foundation reinforcement device, including an invert arch, with baffles fixedly connected to the front and rear sides of the invert arch, a reinforcement mechanism provided inside the invert arch, the reinforcement mechanism being used to increase the road support force, an adjustment mechanism being provided inside the two baffles, the adjustment mechanism being used to adjust the height of the baffles, and a road surface being fixedly connected to the top of the two baffles.

[0006] The reinforcement mechanism includes multiple support columns, the bottoms of which are all located at the inner bottom of the invert arch. Multiple concave grooves are formed at the inner bottom of the invert arch, and the bottoms of the support columns are slidably connected to the inner bottom of the concave grooves. X-shaped frames are fixedly connected to the left and right sides of the support columns. The opposite sides of the X-shaped frames are fixedly connected between two adjacent baffles. Support rods are fixedly connected to the front and rear sides of the X-shaped frames. The bottoms of the support rods are fixedly connected to the inner bottom of the invert arch. Multiple pins are fixedly connected to the bottom of the invert arch. A concrete layer is provided on the inner side of the invert arch, and a weight-dispersing component is provided at the bottom of each pin.

[0007] As a further description of the above technical solution:

[0008] The adjustment mechanism includes two baffles, the outer walls of which are slidably connected to the interior of a baffle. A sliding groove is provided at the top of each of the two baffles. A slot is provided at the bottom right side of each of the two baffles. Multiple slots are provided on the right side of each of the two baffles. A locking plate is slidably connected inside each of the two slots. Engaging components are provided on the top left and right sides of each of the two locking plates.

[0009] As a further description of the above technical solution:

[0010] Stabilizing rods are fixedly connected to the left and right sides of the multiple supporting columns, and the bottom of the multiple stabilizing rods is fixedly connected to the bottom of the inner side of the invert arch.

[0011] As a further description of the above technical solution:

[0012] The weight-dispersing assembly includes multiple circular plates, the tops of which are fixedly connected to the bottom of a pin, and multiple barbs are fixedly connected to the tops of which are also fixedly connected.

[0013] As a further description of the above technical solution:

[0014] The locking assembly includes multiple locking blocks, the outer walls of which are slidably connected to the top left and right sides of two locking plates. Insertion slots are provided on the top left and right sides of the two locking plates, and the outer walls of the multiple locking blocks are slidably connected to the inside of the insertion slots.

[0015] As a further description of the above technical solution:

[0016] The locking assembly also includes multiple connecting plates, the bottoms of which are fixedly connected to the tops of multiple locking blocks, and pull rings are fixedly connected to the tops of each of the multiple connecting plates.

[0017] As a further description of the above technical solution:

[0018] The locking assembly also includes multiple sealing tubes, which are fixedly connected to the front and rear sides of the two locking plates respectively. The interior of the multiple locking slots 2 and 1 is provided with a semi-circular groove.

[0019] As a further description of the above technical solution:

[0020] Two positioning pins are fixedly connected to the inner bottom of each of the multiple concave grooves, and two positioning holes are opened at the bottom of each of the multiple support columns.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, a triangular frame is formed by connecting the baffle with an X-shaped frame, the support rod enhances stability, the pin penetrates the soil layer to connect the weight-dispersing component, the load is transferred to the X-shaped frame through the baffle, distributed to the support column and support rod, and transmitted to the deep foundation through the pin and weight-dispersing component. The load is evenly transmitted through the multi-level pressure dispersion system, and the concrete layer and the internal structure of the invert arch form a rigid connection, avoiding local stress concentration and improving the bearing capacity of the foundation.

[0023] 2. In this utility model, the second baffle is slidably connected to the first baffle. The guide is provided by the slide groove, the slot engages with the plate, and the engaging component is locked. During adjustment, the second baffle is pushed up and down along the slide groove. After reaching the target height, the second baffle is aligned with the slot and inserted into the plate. The engaging component is locked. Multiple slots can achieve multi-level adjustment, which realizes the effect of precisely adjusting the height of the first baffle. It can flexibly adapt to different base flatness, so that the road surface elevation meets the design requirements, improves the applicability and construction convenience of the device, and ensures the safety of the tunnel structure. Attached Figure Description

[0024] Figure 1 This is a perspective view of a tunnel foundation reinforcement device proposed in this utility model;

[0025] Figure 2 This is a split view of the concrete layer in a tunnel foundation reinforcement device proposed in this utility model;

[0026] Figure 3 This is a split view of the support column in a tunnel foundation reinforcement device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the positioning hole in a tunnel foundation reinforcement device proposed in this utility model;

[0028] Figure 5 This is a split view of the clamping plate in a tunnel foundation reinforcement device proposed in this utility model;

[0029] Figure 6This is a split view of the locking block in a tunnel foundation reinforcement device proposed in this utility model.

[0030] Legend:

[0031] 1. Inverted arch; 2. Baffle 1; 3. Reinforcing mechanism; 301. Concave groove; 302. Support column; 303. X-shaped frame; 304. Support rod; 305. Pin; 306. Concrete layer; 307. Loose weight assembly; 3071. Circular plate; 3072. Hook; 4. Adjustment mechanism; 401. Baffle 2; 402. Slide groove; 403. Slot 1; 404. Slot 2; 405. Card plate; 406. Engaging assembly; 4061. Card block; 4062. Insertion groove; 4063. Connecting plate; 4064. Pull ring; 4065. Sealing pipe; 4066. Semicircular groove; 5. Road surface; 6. Positioning pin; 7. Positioning hole; 8. Stabilizer bar. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 2 , Figure 3 and Figure 4 An embodiment of this utility model provides a tunnel foundation reinforcement device, including an invert arch 1, with baffles 2 fixedly connected to the front and rear sides of the invert arch 1, a reinforcement mechanism 3 provided inside the invert arch 1, the reinforcement mechanism 3 being used to increase the road support force, an adjustment mechanism 4 being provided inside the two baffles 2, the adjustment mechanism 4 being used to adjust the height of the baffles 2, and a road surface 5 being fixedly connected to the top of the two baffles 2.

[0034] The reinforcement mechanism 3 includes multiple support columns 302, the bottom of which is located on the inner bottom of the invert arch 1. The inner bottom of the invert arch 1 has multiple concave grooves 301. The bottom of the multiple support columns 302 is slidably connected to the inner bottom of the concave grooves 301. X-shaped frames 303 are fixedly connected to the left and right sides of the multiple support columns 302. The opposite sides of the multiple X-shaped frames 303 are fixedly connected between two adjacent baffles 2. Support rods 304 are fixedly connected to the front and rear sides of the multiple X-shaped frames 303. The bottom of the multiple support rods 304 is fixedly connected to the inner bottom of the invert arch 1. Multiple pins 305 are fixedly connected to the bottom of the invert arch 1. A concrete layer 306 is provided on the inner side of the invert arch 1. A weight-dispersing component 307 is provided at the bottom of the multiple pins 305.

[0035] Specifically, the bottoms of multiple support columns 302 slide into the concave grooves 301 on the inner bottom of the invert arch 1, forming a basic support structure. X-shaped frames 303 fixed to the left and right sides of the support columns 302 connect to two baffles 2, forming a stable triangular support frame. The bottom ends of the support rods 304 fixed to the front and rear sides of the X-shaped frames 303 are connected to the inner bottom of the invert arch 1, further enhancing the overall structural stability. The pins 305 at the bottom of the invert arch 1 penetrate the soil layer. The interior of the invert arch 1 is filled with a concrete layer 306. The bottom of the pins 305 is connected to a weight-distributing component 307. When the tunnel foundation is under pressure, the load transmitted from the road surface 5 acts on the X-shaped frames 303 via the baffles 2. The X-shaped frames 303 distribute the load to the support columns 302 and support rods 304. Through changes in the contact area between themselves and the concave grooves 301, they evenly distribute the vertical pressure. The X-shaped frames 303 and support rods 304 work together to transmit the horizontal force to the invert arch 1. To avoid localized stress concentration, the pin 305 penetrates the soil and works in conjunction with the weight-dispersing component 307 to further disperse the pressure at the bottom of the invert arch 1 to deeper foundation layers. The weight-dispersing component 307 expands the pressure transmission area, reducing the pressure borne by the foundation per unit area. The concrete layer 306 fills the interior of the invert arch 1, forming a rigid connection with its interior. Throughout the stress process, the support column 302, X-frame 303, support rod 304, pin 305, and weight-dispersing component 307 work together to form a multi-level pressure dispersion system. The connection between the X-frame 303 and the support rod 304 enhances the stability of the structure. The pin 305 and weight-dispersing component 307 transmit pressure to deeper foundation layers, achieving the function of increasing the support force of the tunnel foundation through the reinforcement mechanism 3. This effectively improves the bearing capacity of the tunnel foundation, avoids tunnel damage caused by foundation settlement or structural deformation, and ensures the safe operation and service life of the tunnel.

[0036] Reference Figure 1 , Figure 5 and Figure 6The adjustment mechanism 4 includes two baffles 401. The outer walls of the two baffles 401 are slidably connected to the inside of the baffle 2. The top of the two baffles 2 is provided with a sliding groove 402. The outer walls of the two baffles 401 are slidably connected to the inside of the baffle 2. The bottom right side of the two baffles 401 is provided with a slot 403. The right side of the two baffles 2 is provided with multiple slots 404. The inside of the two slots 403 is slidably connected with a locking plate 405. The top left and right sides of the two locking plates 405 are provided with locking components 406.

[0037] Specifically, the outer walls of the two baffles 401 are slidably connected to the interior of the baffle 2, forming a liftable basic structure. The sliding groove 402 at the top of the baffle 2 provides a guide path for the lifting of the baffle 401. The slot 403 at the bottom right side of the baffle 401 corresponds to multiple slots 404 on the right side of the baffle 2. The locking plate 405 is slidably connected in the slots 403 and 404. The locking components 406 on the top left and right sides are used to lock the position of the locking plate 405. When it is necessary to adjust the height of the top surface 5 of the baffle 2, push the baffle 2 401 up or down to make it slide along the inside of the baffle 2. The baffle 2 401 maintains a vertical lifting trajectory through the slide groove 402. When the baffle 2 401 moves to the target height, the slot 1 403 aligns with the corresponding slot 2 404. Insert the locking plate 405 into the connecting area between the slot 1 403 and the slot 2 404, so that the baffle 2 401 and the baffle 2 form a rigid connection, and the locking assembly 40... 6. Locking plate 405 is used to prevent it from loosening and falling off. The insertion depth of plate 405 must ensure that slot 1 403 and slot 2 404 are fully engaged to withstand the load transmitted by road surface 5. During the adjustment process, the sliding groove 402 limits the baffle 2 401 to prevent it from tilting and ensure the lifting accuracy. By setting multiple slots 2 404, the height of baffle 2 401 can be adjusted in multiple levels to adapt to the needs of different tunnel foundation flatness or design elevation. The sliding cooperation between baffle 2 401 and baffle 1 2 achieves the flexibility of height adjustment. The engaging structure of slot 1 403, slot 2 404 and plate 405 ensures the position is locked after adjustment. The guide limit of sliding groove 402 ensures the stability of the lifting process. The function of adjusting the height of baffle 1 2 can be achieved by adjusting mechanism 4, so that the elevation of road surface 5 matches the tunnel design requirements, improves the applicability and construction convenience of the foundation reinforcement device, and ensures the overall stability and safety of the tunnel structure.

[0038] Reference Figure 1 , Figure 2 and Figure 6The left and right sides of the multiple support columns 302 are fixedly connected to the stabilizing rods 8, and the bottom of the multiple stabilizing rods 8 is fixedly connected to the inner bottom of the invert arch 1. The weight-dispersing component 307 includes multiple circular plates 3071, the top of the multiple circular plates 3071 is fixedly connected to the bottom of the pin 305, and the top of the multiple circular plates 3071 is fixedly connected to multiple barbs 3072. The locking component 406 includes multiple locking blocks 4061, the outer walls of the multiple locking blocks 4061 are slidably connected to the top left and right sides of the two locking plates 405, the top left and right sides of the two locking plates 405 are provided with insertion slots 4062, and the outer walls of the multiple locking blocks 4061 are slidably connected to the inside of the insertion slots 4062.

[0039] Specifically, the bottom ends of the stabilizing rods 8 fixed to the left and right sides of multiple support columns 302 are connected to the bottom inner side of the invert arch 1, forming a triangular support structure. When the support column 302 bears a vertical load, the stabilizing rods 8 restrict the lateral displacement of the support column 302 through their own rigidity, enhancing the overturning resistance of the support column 302. The stabilizing rods 8, the support columns 302, and the invert arch 1 together constitute a stable mechanical frame, reducing structural deformation caused by uneven local stress. In the weight distribution component 307, the circular plate 3071 fixed at the bottom by the pin 305 is expanded... With a larger load transfer area, when the bottom of the invert arch 1 is under pressure, the pressure is transferred to the circular plate 3071 through the pin 305. The circular plate 3071 converts the concentrated force into a distributed force acting on the foundation. The barb 3072 at the top of the circular plate 3071 is embedded in the foundation soil layer, preventing the circular plate 3071 from slipping through mechanical interlocking, while increasing the friction with the foundation, ensuring that the load is effectively transferred to the deep soil and reducing the risk of foundation settlement. In the locking assembly 406, the insertion slots 4062 on the left and right sides of the top of the locking plate 405 and the locking block 406 1. Sliding engagement: When the locking plate 405 is inserted into the first locking slot 403 and the second locking slot 404, the locking block 4061 is pushed to slide downward along the insertion groove 4062 to form a locked state. The sliding displacement of the locking block 4061 must ensure that it is tightly engaged with the insertion groove 4062 to prevent the locking plate 405 from loosening. During disassembly, the locking block 4061 is pulled upward to disengage it from the insertion groove 4062, and the locking plate 405 can be removed, realizing the readjustment of the height of the second baffle 401. This is achieved through the rigidity of the stabilizer bar 8, the support column 302, and the invert arch 1. The connection enhances the lateral displacement resistance of the supporting structure; the enlarged area of ​​the circular plate 3071 and the mechanical engagement of the hook 3072 achieve efficient load distribution and transmission; the sliding engagement of the locking block 4061 and the insertion slot 4062 ensures the reliability of the locking of the locking plate 405, thereby enhancing the stability of the tunnel foundation structure, optimizing the load transmission path, and ensuring the locking accuracy of the adjustment mechanism 4. This effectively improves the overall performance of the tunnel foundation reinforcement device and meets the requirements of tunnel engineering for foundation bearing capacity and construction accuracy.

[0040] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 The engaging assembly 406 further includes multiple connecting plates 4063, the bottoms of which are fixedly connected to the tops of multiple locking blocks 4061. Each of the multiple connecting plates 4063 has a pull ring 4064 fixedly connected to its top. The engaging assembly 406 also includes multiple sealing tubes 4065, which are fixedly connected to the front and rear sides of two locking plates 405. Each of the multiple locking slots 404 and the locking slot 403 has a semi-circular groove 4066 inside. Each of the multiple concave grooves 301 has two positioning pins 6 fixedly connected to its inner bottom. Each of the multiple support columns 302 has two positioning holes 7 at its bottom.

[0041] Specifically, the connecting plate 4063 fixed to the top of the locking block 4061 and the pull ring 4064 form an operating structure. When it is necessary to lock the locking plate 405, press down on the pull ring 4064 to drive the connecting plate 4063 and the locking block 4061 to slide along the insertion groove 4062. The sealing tube 4065 is fixed to the front and rear sides of the two locking plates 405 to form a sealing structure at the connection between the first locking groove 403 and the second locking groove 404. After the locking plate 405 is inserted into the locking groove, the sealing tube 4065 is inserted into the interior of the semi-circular groove 4066 to prevent impurities such as mud and water from entering. Entering the slot, to prevent impurities from affecting the sliding or locking performance of the card plate 405, the positioning pin 6 in the concave groove 301 at the bottom of the inner side of the invert arch 1 cooperates with the positioning hole 7 at the bottom of the support column 302 to form a positioning structure. When installing the support column 302, align the positioning hole 7 with the positioning pin 6 and insert it to ensure that the support column 302 is accurately installed in the preset position of the concave groove 301. The cooperation between the positioning pin 6 and the positioning hole 7 restricts the horizontal displacement of the support column 302, and at the same time provides guidance for the sliding of the support column 302 in the concave groove 301, avoiding... To avoid uneven force due to installation deviation, when adjusting the height of baffle 2 401, pull the pull ring 4064 upwards. This will cause the connecting plate 4063 to drive the locking block 4061 into the slot 4062, releasing the locking state of the locking plate 405. At this time, baffle 2 401 can be pushed to slide along the inside of baffle 1 2. The slide groove 402 and the positioning pin 6 together ensure the verticality of the lifting trajectory. After adjusting to the target height, press the pull ring 4064 again to make the locking block 4061 re-embed into the slot 4062, completing the locking. The linkage with the connecting plate 4063 enables convenient operation of the locking block 4061; the cooperation between the sealing tube 4065 and the semi-circular groove 4066 improves the sealing performance and locking reliability of the slot connection; the guiding positioning of the positioning pin 6 and the positioning hole 7 ensures the installation accuracy of the support column 302, achieving the functions of convenient operation of the locking component 406, stable connection and accurate positioning of the support column 302, ensuring the reliability of the adjustment mechanism 4 and the stress stability of the reinforcement mechanism 3, and improving the construction efficiency and structural safety of the tunnel foundation reinforcement device.

[0042] Working principle: First, the invert arch 1 is placed at the designed position on the tunnel foundation. The baffles 2 on the front and rear sides of the invert arch 1 are positioned simultaneously. Through the cooperation of the positioning pin 6 in the concave groove 301 at the bottom of the inner side of the invert arch 1 and the positioning hole 7 at the bottom of the support column 302, the support column 302 is accurately installed into the concave groove 301. The positioning pin 6 restricts the horizontal displacement of the support column 302 and provides sliding guidance. Then, the X-shaped frame 303 is fixed to the left and right sides of the support column 302. The side of the X-shaped frame 303 away from the support column 302 is fixedly connected to the baffle 2 to form a triangular support frame. At the same time, the support rod 304 is fixed to the front and rear sides of the X-shaped frame 303. It connects to the bottom of the inner side of the invert arch 1 to enhance the overall structural rigidity. The pin 305 at the bottom of the invert arch 1 is inserted into the base soil layer. The weight-dispersing component 307 at the bottom of the pin 305 is simultaneously buried in the foundation. The circular plate 3071 expands the load transmission area. The barb 3072 strengthens the connection with the soil through mechanical interlocking. Finally, the concrete layer 306 is filled inside the invert arch 1 to make the components form a rigid whole. When the road surface 5 bears the load of vehicles or soil, the load is transferred to the X-shaped frame 303 through the baffle 2. The X-shaped frame 303 distributes the vertical load to the support column 302 and the support rod 304. The support column 302 evenly distributes the vertical pressure.Support rod 304 transmits horizontal force to invert arch 1, avoiding local stress concentration. The load borne by invert arch 1 is transmitted to weight distribution component 307 through pin 305. Circular plate 3071 converts concentrated force into distributed force acting on the deep foundation, reducing pressure per unit area. Hook 3072 prevents circular plate 3071 from slipping, ensuring effective load transmission. Concrete layer 306 and invert arch 1 work together to enhance the compressive strength and durability of the device, forming a multi-level pressure dispersion system. When it is necessary to adjust the elevation of the road surface 5 at the top of baffle 2, operate adjustment mechanism 4 and pull ring 4064 upwards. The connecting plate 4063 drives the locking block 4061 to disengage from the insertion slot 4062, releasing the locking state of the locking plate 405. Then, the second baffle 401 is pushed to slide along the inside of the first baffle 2. The second baffle 401 maintains a vertical lifting trajectory through the sliding groove 402 at the top of the first baffle 2. The limiting function of the sliding groove 402 prevents it from tilting. When the second baffle 401 moves to the target height, the first slot 403 aligns with the corresponding second slot 404. The locking plate 405 is inserted, allowing it to pass through both the first slot 403 and the second slot 404 simultaneously, forming a rigid connection. At this point, pressing down on the pull ring 4064 inserts the locking block 4061. The slot 4062 achieves a tight lock through the cooperation of the locking block 4061 and the insertion slot 4062. The sealing tubes 4065 on the front and rear sides of the locking plate 405 are inserted into the semi-circular slot 4066. During the insertion process, they are squeezed and deformed to fill the gap at the connection of the slots, preventing impurities such as mud and water from entering and affecting the locking performance. By setting multiple slots 404, the height of the baffle 401 can be adjusted in multiple stages to adapt to different base flatness requirements. In the structural stability and strengthening stage: the stabilizing rods 8 on the left and right sides of the support column 302 and the bottom of the inner side of the invert arch 1 form a triangular support structure. When the support column 302 bears a vertical load, the stability is enhanced. The fixed rod 8, through rigid connection, restricts the lateral displacement of the support column 302, enhancing its anti-overturning capacity and reducing structural deformation caused by uneven local stress. The pull ring 4064 of the locking assembly 406 and the connecting plate 4063 provide a convenient operating interface, ensuring the quick locking and unlocking of the locking block 4061. The cooperation between the sealing pipe 4065 and the semi-circular groove 4066 improves the connection sealing performance, ensuring the long-term reliability of the adjustment mechanism 4. This achieves the tunnel foundation reinforcement device's adaptability to different geological conditions, efficient load-bearing capacity, and convenient operation for construction and maintenance, effectively improving the safety and service life of the tunnel foundation.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tunnel foundation reinforcement device, comprising an invert (1), characterized in that: The front and rear sides of the inverted arch (1) are fixedly connected with baffles (2). The interior of the inverted arch (1) is provided with a reinforcement mechanism (3). The reinforcement mechanism (3) is used to increase the road support force. The interior of the two baffles (2) is provided with an adjustment mechanism (4). The adjustment mechanism (4) is used to adjust the height of the baffles (2). The top of the two baffles (2) is fixedly connected with a road surface (5). The reinforcement mechanism (3) includes multiple support columns (302), the bottoms of which are all located at the bottom inner side of the inverted arch (1). Multiple concave grooves (301) are provided at the bottom inner side of the inverted arch (1). The bottoms of the multiple support columns (302) are slidably connected to the bottom inner side of the concave grooves (301). X-shaped frames (303) are fixedly connected to the left and right sides of each of the multiple support columns (302), with the X-shaped frames (303) positioned far apart. One side is fixedly connected between two adjacent baffles (2), and the front and rear sides of the multiple X-shaped frames (303) are fixedly connected with support rods (304). The bottom of the multiple support rods (304) is fixedly connected to the bottom of the inner side of the invert (1). The bottom of the invert (1) is fixedly connected with multiple pins (305). The inner side of the invert (1) is provided with a concrete layer (306), and the bottom of the multiple pins (305) is provided with a weight-reducing component (307).

2. The tunnel foundation reinforcement device according to claim 1, characterized in that: The adjustment mechanism (4) includes two baffles (401). The outer walls of the two baffles (401) are slidably connected to the inside of the baffle (2). The top of the two baffles (2) is provided with a sliding groove (402). The outer walls of the two baffles (401) are slidably connected to the inside of the baffles (401). The bottom right side of the two baffles (401) is provided with a slot (403). The right side of the two baffles (2) is provided with multiple slots (404). The inside of the two slots (403) is slidably connected with a plate (405). The top left and right sides of the two plates (405) are provided with locking components (406).

3. The tunnel foundation reinforcement device according to claim 1, characterized in that: Stabilizing rods (8) are fixedly connected to the left and right sides of the multiple supporting columns (302), and the bottom of the multiple stabilizing rods (8) is fixedly connected to the bottom of the inner side of the inverted arch (1).

4. The tunnel foundation reinforcement device according to claim 1, characterized in that: The weight-dispersing assembly (307) includes multiple circular plates (3071), the tops of which are fixedly connected to the bottom of the pin (305), and multiple barbs (3072) are fixedly connected to the tops of which are respectively.

5. A tunnel foundation reinforcement device according to claim 2, characterized in that: The locking assembly (406) includes multiple locking blocks (4061), the outer walls of which are slidably connected to the top left and right sides of two locking plates (405). Insertion slots (4062) are provided on the top left and right sides of the two locking plates (405), and the outer walls of the multiple locking blocks (4061) are slidably connected to the inside of the insertion slots (4062).

6. A tunnel foundation reinforcement device according to claim 2, characterized in that: The locking assembly (406) also includes a plurality of connecting plates (4063), the bottoms of which are fixedly connected to the tops of a plurality of locking blocks (4061), and pull rings (4064) are fixedly connected to the tops of the plurality of connecting plates (4063).

7. A tunnel foundation reinforcement device according to claim 2, characterized in that: The locking assembly (406) also includes a plurality of sealing tubes (4065), which are fixedly connected to the front and rear sides of the two locking plates (405) respectively. The interior of the plurality of locking slots (404) and locking slots (403) is provided with semi-circular grooves (4066).

8. The tunnel foundation reinforcement device according to claim 1, characterized in that: Two positioning pins (6) are fixedly connected to the bottom of the inner side of each of the multiple concave grooves (301), and two positioning holes (7) are opened at the bottom of each of the multiple support columns (302).

Images