A durable lifting mechanism for tunnel single-layer folding plate construction

Abstract

The invention relates to the technical field of building construction structures, and in particular to a durability lifting mechanism for the construction of a single-layer folded plate in a tunnel. It includes: an assembly, the assembly is arranged in a gap with the tunnel waterproofing part, and a filling layer is cast inside, and a reinforcement connection part is provided between two adjacent groups of the assembly, and a waterproof layer is arranged inside the assembly; a bottom mounting part, a plurality of the bottom mounting parts are installed with the reinforcement connection part, and are used to support the installation of the assembled lining; a durability lifting mechanism for the construction of a single-layer folded plate in a tunnel is provided, which relies on the assembled assembly and is equipped with a cast inner layer to achieve support for the tunnel structure, which can effectively improve the overall waterproof effect and support strength, and at the same time, the lining formed by combined splicing is matched with the bottom mounting part to avoid damage to the main structure, and at the same time, it is easy to repair, and plays a role in buffering and absorbing energy, and can also provide protection for the driver.

Description

Technical Field

[0001] The invention relates to the technical field of building construction structures, and in particular to a durability lifting mechanism used for tunnel single-layer folding plate construction. Background Art

[0002] In tunnel construction, the main construction of the tunnel is mainly completed by open excavation or concealed excavation. In order to prevent water seepage in the rock mass, waterproof facilities are usually laid after the main body is completed, and then the tunnel lining is poured to form the support of the arched folded plate structure. However, a steel mesh needs to be set up during the pouring construction, which is easy to damage the waterproof surface layer, thereby reducing the overall waterproof effect, service life and construction efficiency. After long-term use, there is water seepage, and in the form of overall pouring, the lining is easily detached after being soaked in water, causing accidents, and subsequent maintenance is also very inconvenient. In addition, due to the problem of light between the tunnel and the external space, traffic accidents are prone to occur, and the tunnel lining is damaged. Vehicles hit the main structure, causing local structural damage and reducing the overall durability. Even after repair, there is still a situation of partial detachment, and the rigid collision is particularly harmful to the driver. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a durable lifting mechanism for the construction of a single-layer folded plate in a tunnel in response to the above-mentioned technical deficiencies. The mechanism relies on assembled components and a cast inner layer to support the tunnel structure, which can effectively improve the overall waterproof effect and support strength. At the same time, the lining formed by combined splicing is combined with the bottom mountings to avoid damage to the main structure, facilitate repair, and play a role in buffering and absorbing energy, and can also provide protection for the driver.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention includes:

[0005] An assembly, wherein the assembly is arranged with a gap between the assembly and the waterproof part of the tunnel, and a filling layer is cast inside, and a reinforced connection part is provided between two adjacent groups of the assembly, and a waterproof layer is arranged inside the assembly;

[0006] Bottom mounting parts, a plurality of said bottom mounting parts are mounted with the reinforcement connection part and used for supporting the installation of the assembled lining;

[0007] The adjustable bracket is connected to the assembly and is used for temporary fixation when the assembly is assembled.

[0008] Preferably, the assembly comprises a top panel and side panels arranged on the left and right; the top panel is connected to the side panels via an adjustable bracket.

[0009] Preferably, the waterproof layer includes a waterproof membrane and a drainage pipe arranged in sequence from bottom to top, and an intermediate hose; the intermediate hose is used to connect the drainage pipe between the top plate and the side plate.

[0010] Preferably, both ends of the intermediate hose are truncated cone-shaped and are provided with a plurality of sealing rings, and an annular groove is provided on the intermediate hose between two adjacent sealing rings, and an inclined branch hole is provided on the intermediate hose.

[0011] Preferably, three notches arranged at an angle are provided at the contact point between the drainage pipe and the filling layer, and arc-shaped dissolving plates are provided in the notches, and the dissolving plates are bent outwards.

[0012] Preferably, the reinforced connection portion includes a circular folding plate and a first fixing rod; the circular folding plates are provided in two groups and are respectively arranged at both ends of the assembly; the first fixing rod is evenly installed on the circular folding plates, and the end faces of the circular folding plates are provided with staggered second fixing rods.

[0013] Preferably, a sealing piece is provided between two adjacent circular folding plates; the sealing piece includes an extrusion piece, a pressure block slidably connected to the extrusion piece, and a waterstop located at the connecting gap between two adjacent assemblies; a mounting hole with a trapezoidal cross-section is provided in the middle of the extrusion piece, and the shape of the pressure block is adapted to the mounting hole.

[0014] Preferably, both the first fixing rod and the second fixing rod are provided with an "X"-shaped elastic stabilizing member.

[0015] Preferably, the bottom mounting comprises a transverse plate and an elastic module; both ends of the transverse plate are connected to the reinforcement connection parts, and the elastic module is threadedly connected to the transverse plate; the elastic module is connected to the assembled lining through anchor rods.

[0016] Preferably, the elastic module includes a sleeve connected to the cross plate, and a column portion slidably connected to the sleeve; a plurality of trapezoidal elastic blocks are provided along the inner wall of the sleeve, and sliding grooves are arranged in a staggered manner; the column portion is respectively provided with a trigger portion contacting the elastic block, and a positioning plate connected to the sliding groove, and a first spring and a second spring are respectively provided above and below the column portion.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The main structure is assembled by means of the combination parts and the adjustable brackets, and then the pouring operation is carried out. The operation can be carried out in sections and continuously, which effectively improves the construction efficiency compared with the pouring operation. In addition, the combination parts do not directly contact the waterproof structure laid on the main body of the tunnel, thus avoiding the damage of the waterproof part.

[0019] 2. The waterproof layer structure of the assembly itself provides secondary protection, effectively avoiding the occurrence of water leakage and seepage, ensuring the durability of the main structure and extending the overall life cycle;

[0020] 3. Relying on the combined connection of bottom mounting parts and assembled lining, compared with the traditional installation method, there is no need to destroy the main structure, which ensures the stability of the overall structure. In addition, the buffering energy absorption structure of the bottom mounting parts can avoid direct rigid collision of the car in the event of an accident, thus playing a role of safety protection;

[0021] 4. The lining and bottom parts are assembled and connected, so they can be replaced in time after damage, which is convenient for subsequent maintenance and avoids direct collision between objects and the main structure of the tunnel support part, effectively ensuring the stability and durability of the main structure;

[0022] 5. The reinforced connection part forms a reinforced support for the assembly after installation, further improving the overall force strength. At the same time, multiple assemblies can be spliced ​​into one by relying on adjacent reinforced connection parts to ensure that the overall connection is tight and reliable, and provide an installation position for the bottom mounting parts. The structure is compact and can be staggered for construction, thereby improving the overall construction efficiency;

[0023] 6. Through the overall structural design, the damage to the waterproof parts and the low construction efficiency problems existing in the traditional casting support are avoided. At the same time, the assembly, casting layer and lining divide the whole into a multi-layer structure, which effectively ensures the stability and waterproofness of the main body and facilitates maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A tunnel overall structure demonstration diagram of a durability lifting mechanism used in tunnel single-layer folding plate construction;

[0025] Figure 2 It is a schematic diagram of assembling components of a durable lifting mechanism used in tunnel single-layer folding plate construction;

[0026] Figure 3 It is a schematic diagram of the assembly structure of a durable lifting mechanism used in the construction of a single-layer folded plate in a tunnel;

[0027] Figure 4 A schematic diagram of the installation of an adjustable bracket for a durable lifting mechanism used in the construction of a single-layer folded plate in a tunnel;

[0028] Figure 5 It is a cross-sectional view of the top plate of a durable lifting mechanism used in the construction of a single-layer folded plate in a tunnel;

[0029] Figure 6 It is a cross-sectional view of an intermediate hose of a durable lifting mechanism used in tunnel single-layer folding plate construction;

[0030] Figure 7 A cross-sectional view of a drainage pipe of a durable lifting mechanism used in single-layer folded plate construction of a tunnel;

[0031] Figure 8 It is a structural schematic diagram of a reinforced connection part of a durability lifting mechanism used in tunnel single-layer folding plate construction;

[0032] Fig. 9 It is a schematic diagram of the overall structure of a reinforced connection part of a durability lifting mechanism used in single-layer folded plate construction of a tunnel;

[0033] Fig.10 It is a cross-sectional view of a plugging member of a durability lifting mechanism used in single-layer folding plate construction of a tunnel;

[0034] Fig.11 It is a schematic diagram of the installation of the bottom mounting parts of a durable lifting mechanism used in the construction of a single-layer folded plate in a tunnel;

[0035] Fig.12 It is a schematic diagram of the bottom mounting structure of a durable lifting mechanism used in the construction of a single-layer folded plate in a tunnel;

[0036] Fig.13 It is a schematic diagram of the elastic module structure of a durability lifting mechanism used in the construction of a single-layer folded plate in a tunnel;

[0037] Fig.14 It is a schematic diagram of an explosion of an elastic module of a durability lifting mechanism used in the construction of a single-layer folded plate in a tunnel;

[0038] Fig.15 It is a sleeve parts diagram of a durable lifting mechanism used in tunnel single-layer folding plate construction;

[0039] Fig.16 It is a steel bar connector for a durable lifting mechanism used in single-layer folding plate construction of a tunnel;

[0040] Fig.17 A diagram of an adjustable bracket component of a durable lifting mechanism used in tunnel single-layer folding plate construction.

[0041] In the figure: 1. assembly; 2. reinforcement connection; 3. waterproof layer; 4. bottom mounting; 5. adjustable bracket; 6. blocking member; 7. first spring; 8. second spring; 101. filling layer; 102. top plate; 103. side plate; 201. round folding plate; 202. first fixing rod; 203. second fixing rod; 204. elastic stabilizing member; 301. waterproof membrane; 302. drainage pipe; 303. intermediate hose; 304. sealing ring; 305. annular groove; 306. branch hole; 307. notch; 308. dissolving plate; 401. horizontal plate; 402. elastic module; 403. sleeve; 404. column; 405. elastic block; 406. slide groove; 407. triggering part; 408. positioning plate; 601. extrusion member; 602. pressing block; 603. water stop; 604. mounting hole. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0043] Specific implementation method 1: Combination Figure 1-17 As shown, a durability lifting mechanism for single-layer folded plate construction in a tunnel is characterized in that it comprises: an assembly 1, wherein the assembly 1 is arranged with a gap between the waterproof part of the tunnel, and a filling layer 101 is cast inside the gap, and a reinforcement connection part 2 is provided between two adjacent groups of assemblies 1, and a waterproof layer 3 is arranged inside the assembly 1; a bottom mounting part 4, wherein a plurality of bottom mounting parts 4 are installed with the reinforcement connection part 2 and are used for supporting the installation of the assembled lining; an adjustable bracket 5, wherein the adjustable bracket 5 is connected with the assembly 1 and is used for temporary fixation when the assembly 1 is assembled; the prefabricated assemblies 1 are sequentially spliced ​​and the filling layer 101 is cast in contact with the tunnel to form an overall support, which effectively improves the construction efficiency, and by directly assembling the assembly 1 The installation eliminates the problem of low efficiency caused by tying steel bars and then pouring in the traditional construction process, as well as the problem of damaging the tunnel waterproofing during tying. At the same time, the reinforced connection part 2 supports the two ends of the assembly 1 again, which effectively improves the support strength. In conjunction with the installed bottom mounting 4, the lining and the main structure are separated. On the one hand, it is convenient for maintenance and repair, and the equipment cables can be laid between the two. On the other hand, it can play a protective role, avoid rigid collision of vehicles, and have the effect of buffering and absorbing energy. After the collision, it will not affect the main supporting structure. Moreover, the connection between the lining and the bottom mounting 4 avoids the risk of falling off. During installation, there is no need to destroy the main structure, thereby improving the overall durability of the tunnel.

[0044] Combination Figure 2 and Figure 3 As shown, the assembly 1 includes a top plate 102 and side plates 103 arranged on the left and right; the top plate 102 is connected to the side plates 103 through an adjustable bracket 5; the top plate 102 and the side plates 103 on both sides together form a main support frame, and cement is poured at the contact position between the two to form a whole. By adopting the combination of the top plate 102 and the two side plates 103, it has good support strength after splicing and a small construction error after splicing. The adjustable bracket 5 is respectively in contact with the connection between the two to support, so as to achieve rapid positioning and installation, which is convenient for the subsequent pouring of the filling layer 101 and the gap between the two.

[0045] The top plate 102 has a plurality of through holes at the top for injecting cement during top pouring.

[0046] Among them, the top plate 102 and the side plate 103 are assembled in blocks, which is convenient for transportation and handling in the tunnel. They can be spliced ​​section by section to improve construction efficiency, and there will be no interference between multiple sections of construction. The top plate 102 and the side plate 103 can be further divided into blocks to facilitate transportation and handling, but there is an increase in construction difficulty and higher process requirements.

[0047] Combination Figure 3-7 As shown, the waterproof layer 3 includes a waterproof membrane 301 and a drainage pipe 302, and an intermediate hose 303, which are arranged from bottom to top; the intermediate hose 303 is used to connect the drainage pipe 302 between the top plate 102 and the side plate 103; during the prefabrication process of the assembly 1 in the factory, a waterproof layer is added to the surface, and the waterproof membrane 301 is used to further ensure the overall waterproofness, and cooperate with the waterproof part of the tunnel surface and the filling layer 101 between the tunnel and the assembly 1 to form a three-layer waterproof arrangement, which effectively improves the stability of the overall structure; wherein the waterproof membrane 301 is preferably a waterproof breathable membrane;

[0048] Furthermore, the design of the drainage pipe 302 can drain the water flow after water seepage, thereby avoiding corrosion damage caused by accumulation near the waterproof membrane 301 and reducing the waterproof pressure of the waterproof membrane 301; during the initial maintenance of the filling layer 101, water can be injected into the interior through the drainage pipe 302 for moist maintenance, thereby improving the pouring quality of the filling layer 101;

[0049] In a preferred embodiment, both ends of the intermediate hose 303 are truncated cone-shaped and are provided with a plurality of sealing rings 304, and an annular groove 305 is provided on the intermediate hose 303 between two adjacent sealing rings 304, and an inclined branch hole 306 is provided on the intermediate hose 303; the truncated cone-shaped structures at both ends of the intermediate hose 303 facilitate the insertion of the ends into the drainage pipe 302, and the sealing ring 304 contacts the inner wall of the drainage pipe 302 to improve the sealing performance, and at the same time, a sealant is applied in the annular groove 305 to further ensure the sealing performance after the overall connection, and the design of the branch hole 306 can prevent water accumulation at the truncated cone end of the intermediate hose 303;

[0050] A preferred embodiment, in combination with Figure 7 As shown, three notches 307 arranged at an angle are provided at the contact point between the drainage pipe 302 and the filling layer 101, and arc-shaped dissolving plates 308 are provided in the notches 307, and the dissolving plates 308 are bent outward; the notches 307 on the drainage pipe 302 are supported by the dissolving plates 308, and the seepage water enters the drainage pipe 302 through the notches 307 in the later stage to achieve drainage and discharge. When the filling layer 101 is poured, the dissolving plates 308 play a supporting role to prevent cement from flowing into the drainage pipe 302 and causing blockage, and at the same time, the arc shape convex to the outside is adopted. , providing good support when the dissolving plate 308 is thin; wherein, the dissolving plate 308 is made of plastic material, such as polystyrene, and after the filling layer 101 is cast and initially solidified, an acetone solution is injected into the drainage pipe 302 to melt the dissolving plate 308, so that the filling layer 101 is connected with the gap 307, thereby realizing the function of drainage operation and maintenance of the filling layer 101, and in later use, air flow can be introduced into one end of the drainage pipe 302, and the humidity content in the air can be detected at the other end to determine whether there is water seepage inside.

[0051] Combination Figure 8-11 As shown, the reinforcement connection part 2 includes a circular folding plate 201 and a first fixing rod 202; the circular folding plate 201 adopts two groups and is respectively arranged at the two ends of the assembly 1; the first fixing rod 202 is evenly installed on the circular folding plate 201, and the end surface of the circular folding plate 201 is provided with a staggered second fixing rod 203; the circular folding plates 201 arranged at both ends of the assembly 1 improve the force strength and structural stability of the assembly 1 after assembly, and rely on the second fixing rod 203 to dock with the next group of reinforcement connection parts 2 to achieve tightening and fixing between the two assemblies 1 to form an overall support, and the first fixing rod 202 completes the positioning connection between the two circular folding plates 201. After assembly, it cooperates with the second fixing rod 203 to tighten and constrain each other to improve the stability after installation, and the first fixing rod 202 and the second fixing rod 203 also provide an installation position for the bottom mounting part 4;

[0052] In a preferred embodiment, a plugging member 6 is provided between two adjacent circular folding plates 201; the plugging member 6 comprises an extrusion member 601, a pressure block 602 slidably connected to the extrusion member 601 and a water stop strip 603 located at the connection gap between two adjacent assemblies 1; a mounting hole 604 with a trapezoidal cross section is provided in the middle of the extrusion member 601, and the shape of the pressure block 602 is adapted to the mounting hole 604; in order to further improve the sealing performance at the connection gap between the two groups of assemblies 1, to prevent liquid leakage during or at a later stage of pouring, and corrosion of the internal structure by external air, a plugging member 6 is placed at the connection between the two circular folding plates 201, and the two circular folding plates 201 are gradually tightly connected under the pull of a fixed rod, compressing and deforming the extrusion member 601, thereby pushing the pressure block 602 in the middle to move outward (i.e., the gap position of the assembly 1), and the pressure block 602 pushes the water stop strip 603 to be in close contact with the inner surface of the assembly 1 during displacement, thereby achieving sealing at the gap;

[0053] The pressing block 602 is arranged in multiple sections in the mounting holes 604 of the extrusion piece 601. The cross section of the mounting hole 604 is a trapezoidal shape, which fits the corresponding pressing block 602. The extrusion displacement of the pressing block 602 is completed during the extrusion deformation. In order to facilitate the sliding of the two, a metal surface layer can be processed on both sides of the mounting hole 604 and the pressing block 602 to reduce the friction resistance and facilitate the displacement of the pressing block 602 under the extrusion. The extrusion piece 601 can be made of rubber material, and after close contact, it also has a good sealing effect.

[0054] In a preferred embodiment, an "X"-shaped elastic stabilizing member 204 is provided on both the first fixing rod 202 and the second fixing rod 203; the two ends of the elastic stabilizing member 204 are in contact with the assembly 1 and the lining respectively, and the middle part is fixed on the first fixing rod 202 or the second fixing rod 203, which supports the rod body and the lining at the same time, and deforms itself after being subjected to impact force, and has a certain buffering and energy-absorbing effect. Together with the bottom mounting member 4, it can effectively protect the main structure of the assembly 1 and the safety of the driver.

[0055] Combination Figure 12-15 As shown, the bottom mounting part 4 includes a transverse plate 401 and an elastic module 402; both ends of the transverse plate 401 are connected to the reinforcement connection part 2, and the elastic module 402 is threadedly connected to the transverse plate 401; the elastic module 402 is connected to the assembled lining through anchor rods; both ends of the transverse plate 401 are respectively installed with the first fixing rod 202 or the second fixing rod 203 to provide installation support for the elastic module 402, and the lining is connected to the elastic module 402 through the anchor rod, which is convenient for installation and disassembly, improves the overall laying efficiency, and avoids damage to the main structure during installation;

[0056] After the vehicle collides with the lining, the elastic module 402 deforms to buffer and absorb energy, thereby reducing the rigid impact on the vehicle, thereby reducing the damage to the driver, and the impact will not directly act on the structure of the assembly 1, ensuring the stability and durability of the overall support structure. The lining damaged by the collision only needs to be removed and replaced in the corresponding area, which is convenient for maintenance and avoids the risk of falling off caused by traditional pouring repairs;

[0057] Under the support of the bottom mounting 4, the lining forms a storage space with the assembly 1, so that the equipment cables can be arranged at the top position, keeping the tunnel clean and tidy, facilitating the laying of cables, and further improving the construction efficiency;

[0058] In a preferred embodiment, the elastic module 402 includes a sleeve 403 connected to the cross plate 401, and a column part 404 slidably connected to the sleeve 403; a plurality of trapezoidal elastic blocks 405 are arranged along the inner wall of the sleeve 403, and a staggered arrangement of slide grooves 406 is provided; the column part 404 is respectively provided with a trigger part 407 in contact with the elastic block 405, and a positioning plate 408 connected to the slide groove 406, and a first spring 7 and a second spring 8 are respectively provided above and below the column part 404; after being hit, the lining transmits the impact force to the column part 404 through the anchor rod, and the trigger part 407 squeezes the elastic block 405 to deform, which plays a primary buffering and energy absorption role. The first spring 7 avoids collision with the end cover when the column part 404 is reset, and maintains the stability of the overall structure. The sliding groove 406 and the positioning plate 408 cooperate with each other to realize the positioning and guiding of the column part 404 itself, and ensure that the trigger part 407 is in accurate contact with the elastic block 405. When the impact force exceeds the elastic protective force of the second spring 8 and the elastic block 405, the bottom surface of the column part 404 contacts the bottom of the sleeve 403 to realize positioning support, thereby avoiding damage to the elastic block 405.

[0059] Combination Figure 4 and Fig.16 As shown, in order to ensure the integrity of the steel bars at the connection between the top plate 102 and the side plate 103, a steel bar connector is installed. The steel bar connector includes an intermediate screw and a pair of ferrules. The ferrules are threadedly connected to the intermediate screw. The positions of the two ferrules at both ends of the intermediate screw can be adjusted according to the distance. After the adjustment, the ferrules can be welded to the steel bars to achieve the integrity of the connected steel bars. After pouring cement, an integral structure is formed with the top plate 102 and the side plate 103.

[0060] Combination Figure 4 and Fig.17As shown, when the top plate 102 and the side plate 103 are spliced, the adjustable bracket 5 is used for preliminary support, and the width between the two is adjusted according to the situation, which is convenient for positioning during installation and improves work efficiency. The adjustable bracket 5 includes a fixed plate and an adjustment part arranged at the top and bottom; the fixed plate is connected to the top plate 102 or the side plate 103 respectively, and the adjustment part plays a supporting role. When the gap width needs to be adjusted, the adjustment part is rotated to push the top plate 102 to move upward; the adjustment part is composed of two support rods and a threaded sleeve; the threaded sleeve is threadedly connected to the support rod, and the support rod is pushed to move and adjust by rotating the threaded sleeve, which is easy to use.

[0061] Combination Figure 1-17 As shown, a specific construction method of a durability lifting mechanism for tunnel single-layer folding plate construction is as follows:

[0062] S1, according to the size requirements, the tunnel construction begins, and the factory starts prefabrication of the top plate 102 and the side plate 103;

[0063] S2, after the overall construction of the tunnel is completed and waterproofing is laid, the assembly 1 is spliced ​​section by section. When splicing, the side plate 103 is first installed, followed by the top plate 102, and then the adjustable bracket 5 and the steel bar connector are installed, and a certain gap is formed between the whole and the tunnel, completing the preliminary installation and positioning;

[0064] S3, installing the reinforcement connection part 2, arranging the round folded plates 201 at the two ends of the assembly 1 respectively, and assembling the first fixing rod 202 to complete the main body support;

[0065] S4, repeat S2 and S3 to splice the next group of assemblies 1, and pour cement at the side plate 103 position in the first section of the assembly 1, and vibrate it. After preliminary solidification, lay a template on the reinforced connection part 2, and inject cement from the through hole of the top plate 102 to complete the pouring of the top filling layer 101 and the connection between the two;

[0066] S5. Repeat step S4. After the overall supporting structure is completed, install the bottom mounting 4 and complete the construction of the lining assembly.

[0067] According to the above-mentioned working steps, compared with traditional construction, the prefabrication of the assembly 1 can be completed during the tunnel excavation process, and simultaneous construction can be achieved to improve construction efficiency. After the first section of the assembly is spliced, the assembly of the next section of the assembly can be started without affecting the pouring of the filling layer 101 in the front assembly 1, thereby realizing the operation mode of assembling and pouring at the same time, effectively improving the overall construction efficiency, and reducing the construction cost by shortening the construction time.

[0068] Combination Figure 1-17 As shown, the implementation of this technical solution also provides a method for repairing local leakage of a durability lifting mechanism for single-layer folding plate construction in a tunnel:

[0069] In actual use, when the local supporting strength is reduced or the waterproofing is damaged due to geology, environment, etc., check which section of the assembly the damaged position is located in. After determining, remove the lining - bottom mounting 4 - fixing rod - circular folding plate 201 in sequence, and then determine the casting position of the top plate 102 and the side plate 103 for cutting and crushing. At the drainage pipe 302, use a hydraulic cylinder and a conical lifting head to insert into the drainage pipe 302, lift and break it, then grind it flat, put in a new assembly 1 for casting to complete the repair.

[0070] In summary, the prefabricated assembly 1 speeds up the construction efficiency and avoids damaging the waterproof construction of the tunnel. At the same time, the waterproof, filling layer 101 and waterproof layer 3 of the tunnel form three layers of protection, which effectively avoids leakage and seepage, thereby improving the durability of the main structure. The assembly 1 adopts the form of splicing and casting, which improves the construction efficiency and ensures the supporting strength, changes the traditional construction method, and cooperates with the reinforced connection part 2 to further enhance the support of the main structure. Combined with the bottom mounting part 4 installed on the reinforced connection part 2, the combined installation of the internal lining is achieved by using anchor rods. In the later maintenance, it can be repaired and replaced according to the area. At the same time, the fixed structure of the anchor rod does not have the risk of water seepage and falling off, and the overall installation will not damage the main structure of the assembly 1, protecting the integrity of the structure, thereby also improving the overall stability and use. The durability is enhanced by the three-layer waterproof effect, which ensures that the assembly 1 is in a relatively dry working environment, further improving its own durability. After the combined lining and the bottom mounting 4 are installed, there is a certain volume space in the middle, which can be used for cable laying operations, avoiding the traditional situation of directly suspending cables or equipment on the top of the tunnel, improving the aesthetics and the convenience of laying operations. At the same time, with the elastic support of the bottom mounting 4 itself, after the vehicle collides with the side plate 103 area in the tunnel, it can achieve buffering and energy absorption, reducing the impact damage to the driver, and after the bottom lining is damaged by collision, it only needs to be replaced, which is easy to maintain, and there is no risk of secondary falling, reducing the construction difficulty. The support of the bottom mounting 4 on the lining avoids the impact force directly acting on the main body of the assembly 1, indirectly protecting the stability of the main structure, thereby extending the service life of the main structure.

[0071] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A durability lifting mechanism for single-layer folding plate construction in tunnels, characterized in that: include: An assembly (1), wherein the assembly (1) is arranged with a gap between it and the waterproof part of the tunnel, and a filling layer (101) is cast inside it, and a reinforced connection part (2) is provided between two adjacent groups of the assembly (1), and a waterproof layer (3) is arranged inside the assembly (1); Bottom mounting parts (4), a plurality of the bottom mounting parts (4) are mounted on the reinforced connection part (2) and are used to support the installation of the assembled lining; An adjustable bracket (5), the adjustable bracket (5) being connected to the assembly (1) and used for temporarily fixing the assembly (1) during assembly; The assembly (1) comprises a top plate (102) and side plates (103) arranged on the left and right; the top plate (102) is connected to the side plates (103) via an adjustable bracket (5); The waterproof layer (3) comprises a water-proof membrane (301) and a drainage pipe (302) arranged in sequence from bottom to top, and an intermediate hose (303); the intermediate hose (303) is used to connect the drainage pipe (302) between the top plate (102) and the side plate (103); The two ends of the intermediate hose (303) are truncated cone-shaped and are provided with a plurality of sealing rings (304), and an annular groove (305) is provided on the intermediate hose (303) between two adjacent sealing rings (304), and an inclined connecting branch hole (306) is provided on the intermediate hose (303); Three notches (307) arranged at an angle are provided at the contact point between the drainage pipe (302) and the filling layer (101), and arc-shaped dissolving plates (308) are provided in the notches (307), and the dissolving plates (308) are bent outwards; The bottom mounting member (4) comprises a transverse plate (401) and an elastic module (402); both ends of the transverse plate (401) are connected to the reinforcement connection part (2), and the elastic module (402) and the transverse plate (401) are threadedly connected; the elastic module (402) is connected to the assembled lining via an anchor rod.

2. A durability lifting mechanism for tunnel single-layer folding plate construction according to claim 1, characterized in that: The reinforcing connection portion (2) comprises a circular folding plate (201) and a first fixing rod (202); the circular folding plates (201) are provided in two groups and are respectively arranged at two ends of the assembly (1); the first fixing rod (202) is evenly mounted on the circular folding plates (201), and the end surfaces of the circular folding plates (201) are provided with staggered second fixing rods (203).

3. The durability lifting mechanism for tunnel single-layer folding plate construction according to claim 2 is characterized by: A blocking piece (6) is provided between two adjacent circular folding plates (201); the blocking piece (6) comprises an extrusion piece (601), a pressure block (602) slidably connected to the extrusion piece (601), and a water stop strip (603) located at the connection gap between two adjacent assemblies (1); a mounting hole (604) with a trapezoidal cross section is provided in the middle of the extrusion piece (601), and the shape of the pressure block (602) is adapted to the mounting hole (604).

4. The durability lifting mechanism for tunnel single-layer folding plate construction according to claim 2 is characterized by: The first fixing rod (202) and the second fixing rod (203) are both provided with an "X"-shaped elastic stabilizing member (204).

5. The durability lifting mechanism for tunnel single-layer folding plate construction according to claim 1 is characterized by: The elastic module (402) comprises a sleeve (403) connected to the transverse plate (401), and a column portion (404) slidably connected to the sleeve (403); a plurality of trapezoidal elastic blocks (405) are arranged along the inner wall of the sleeve (403), and slide grooves (406) are arranged in a staggered manner; the column portion (404) is respectively provided with a trigger portion (407) in contact with the elastic block (405), and a positioning plate (408) connected to the slide groove (406); a first spring (7) and a second spring (8) are respectively provided above and below the column portion (404).

Images