Diversion tunnel excavation lining structure

Abstract

The utility model discloses an excavation lining structure of a diversion tunnel. The excavation lining structure of the diversion tunnel comprises a tunnel body, a first lining, a second lining and a bundling punching piece. An inner groove is formed in the second lining, and the bundle punching piece is arranged on the inner groove and provided with a contraction station stored in the inner groove and a bundle punching station rotating to the outside of the inner groove; when the bundling and punching piece is located at the contraction station, the outer wall surface of the bundling and punching piece is flush with the inner wall surface of the secondary lining and forms a flow guide surface; and when the bundle punching piece is located at the bundle punching station, the bundle punching piece moves towards the axis direction of the hole body and forms a bundle punching surface with the inner diameter smaller than that of the flow guide surface. The diversion tunnel excavation lining structure takes water bundling and sand flushing as the guiding idea, the flow velocity of water flow in the diversion tunnel is increased by forming the bundling and flushing surface through the bundling and flushing pieces, various impurities mixed in water are difficult to attach to the tunnel body, the material accumulation probability is reduced, the impact force of the water flow is also increased, materials attached to the tunnel body are flushed, and the construction efficiency is improved. And attachments are eliminated, and the flow conductivity of the hole body is recovered.

Description

Technical Field

[0001] This utility model relates to the field of diversion tunnel technology, specifically to a diversion tunnel excavation lining structure. Background Technology

[0002] A diversion tunnel is a tunnel used for diverting water during construction. One of its characteristics is that the construction period is often very tight. If it cannot be completed on schedule, it will cause the entire project to be delayed.

[0003] In actual engineering, the flow rate of the diversion tunnel is relatively small, so the diameter of the diversion tunnel is also relatively small. However, for rivers with high sediment content and many impurities, material accumulation is prone to occur in the diversion tunnel, further reducing the actual flow velocity and flow rate, which is not conducive to the diversion tunnel's function. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to avoid material accumulation in the diversion tunnel. The purpose is to provide a diversion tunnel excavation lining structure to solve the above-mentioned problem.

[0005] This utility model is achieved through the following technical solution:

[0006] A diversion tunnel excavation lining structure includes a tunnel body, a primary lining, a secondary lining, and a retaining member;

[0007] The tunnel has a basic shape and length; the first lining and the second lining are sequentially installed on the inner wall of the tunnel.

[0008] The secondary lining is provided with an inner groove, and the punching component is set on the inner groove. The punching component has a shrinking position that is housed in the inner groove and a punching position that rotates to the outside of the inner groove.

[0009] Correspondingly, when the punch is in the shrinkage position, the outer wall surface of the punch is flush with the inner wall surface of the secondary lining and forms a flow guide surface; when the punch is in the punching position, the punch moves towards the tunnel axis and forms a punching surface with an inner diameter smaller than the flow guide surface.

[0010] In one possible design, the secondary liner is provided with at least one set of punches, each set of punches including two opposing inner grooves, and correspondingly, each inner groove is provided with a punch.

[0011] In one possible design, the punching component includes a punching plate, a driver, and a limiter;

[0012] The punch plate has an upstream end and a downstream end, the upstream end of which is connected to the inner groove; and the punch plate has an inner side and an outer side, the inner side facing the inner groove and the outer side facing outward and used to form a guide surface or punch surface.

[0013] The driver is fixed in the inner groove, and the output end of the driver is connected to the inner side of the punching plate. Accordingly, the driver is used to drive the punching plate to rotate along its upstream end and switch between the shrink station and the punching station.

[0014] The limiter is fixed on the inner side of the punching plate. When the punching plate is in the punching position, the working end of the limiter extends outward and is inserted into the secondary lining to fix the position of the punching plate. Correspondingly, the secondary lining is provided with a fixing hole that is adapted to the limiter.

[0015] In one possible design, the punch plate has a three-proof layer on at least the outer side.

[0016] In one possible design, the actuator includes several first telescopic rods connected in parallel, and the limiter includes several second telescopic rods connected in parallel, with the first and second telescopic rods staggered accordingly.

[0017] In one possible design, a humidity sensor and a dryer are housed within the recessed area, with the humidity sensor electrically connected to the dryer.

[0018] In one possible design, the inner wall of the groove is constructed as an inclined surface sloping towards the downstream end of the punch plate to form a water guiding surface.

[0019] In one possible design, there are several fixing holes forming a fixing group, and the fixing group has at least one fixing group. Correspondingly, when there are multiple fixing groups, the punching plate has multiple punching stations to form multiple punching surfaces with different inner diameters.

[0020] In one possible design, the fixing hole is provided with an elastic element and a sealing plate. The elastic element has two opposite ends. One end of the elastic element is fixed to the bottom of the fixing hole, and the other end of the elastic element extends along the fixing hole and connects to the sealing plate. The sealing plate is slidably disposed on the fixing hole through a dynamic sealing element.

[0021] In one possible design, a number of first anchor bolts are provided on the primary lining, and a number of second anchor bolts are selectively provided on the secondary lining.

[0022] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0023] The diversion tunnel excavation and lining structure is guided by the concept of water-bearing and sand-flushing. By forming a bearing surface through bearing components, the flow velocity of water in the diversion tunnel is increased. Various impurities mixed in the water are difficult to adhere to the tunnel body, reducing the probability of material accumulation. It also increases the impact force of the water flow, flushing away the material already attached to the tunnel body, removing the attachments and restoring the tunnel's diversion capacity. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0025] Figure 1 This is a schematic diagram of a diversion tunnel excavation lining structure.

[0026] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure.

[0027] Figure 3 This is a schematic diagram of the structure of the punched part in the shrinkage position.

[0028] Figure 4 This is a schematic diagram of the structure of the punched part located at the punching station.

[0029] Figure 5 This is a schematic diagram of the punch plate structure.

[0030] The attached diagram shows the markings and corresponding component names:

[0031] 100. Tunnel body; 200. First lining; 201. First anchor bolt; 300. Second lining; 301. Inner groove; 302. Fixing hole; 400. Bundling punch; 401. Bundling punch plate; 402. Driver; 403. Limiter; 500. Dryer. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0033] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0034] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0036] Example:

[0037] like Figures 1-5 As shown, a diversion tunnel excavation lining structure includes a tunnel body 100, a primary lining 200, a secondary lining 300, and a retaining member 400.

[0038] The cavity 100 has a basic shape and length; the first lining 200 and the second lining 300 are sequentially arranged on the inner wall surface of the cavity 100;

[0039] The secondary lining 300 is provided with an inner groove 301, and the punching member 400 is provided on the inner groove 301. The punching member 400 has a shrinking position that is housed in the inner groove 301 and a punching position that rotates to the outside of the inner groove 301.

[0040] Correspondingly, when the punching component 400 is in the shrinking position, the outer wall surface of the punching component 400 is flush with the inner wall surface of the secondary lining 300 and forms a flow guiding surface; when the punching component 400 is in the punching position, the punching component 400 moves towards the axis of the tunnel 100 and forms a punching surface with an inner diameter smaller than the flow guiding surface.

[0041] In the aforementioned diversion tunnel excavation and lining structure, the tunnel body 100 can be constructed into any suitable shape. The primary lining 200 and the secondary lining 300 work together to ensure that the structural strength of the tunnel body 100 meets design requirements. Potential material accumulation risks are addressed by the clamping component 400. Specifically, the clamping component 400 has a contraction station and a clamping station. When the clamping component 400 is in the contraction station, it is recessed within the inner groove 301 and forms a guiding surface. In this case, the tunnel body 100 acts as a diversion tunnel, guiding the flow. Conversely, when the clamping component 400 is in the clamping station, it rotates inwards towards the tunnel body 100 and forms a clamping surface. The width of the clamping surface is smaller than the guiding surface, increasing the flow velocity of the liquid as it flows over it. This increases the flow velocity, reducing the probability of material accumulation and also flushing the downstream area, making downstream flow smoother.

[0042] Based on this, the diversion tunnel excavation lining structure is guided by the idea of ​​water jet flushing. The jetting component 400 forms a jetting surface to increase the flow velocity of water in the diversion tunnel. Various impurities mixed in the water are difficult to adhere to the tunnel body 100, reducing the probability of material accumulation and increasing the impact force of the water flow. This flushes the material that has already adhered to the tunnel body 100, removes the attachments, and restores the diversion capacity of the tunnel body 100.

[0043] In one possible implementation, the secondary lining 300 is provided with at least one punching group, each punching group including two opposing inner grooves 301, and correspondingly, each inner groove 301 is provided with a punching element 400. Based on the above design scheme, generally, one punching group, i.e., two punching elements 400, is sufficient; if necessary, such as if the length of the cavity 100 is large, the number of punching groups can be appropriately increased as needed to ensure the punching effect of the punching elements 400.

[0044] In one possible implementation, the punch 400 includes a punch plate 401, a driver 402, and a limiter 403;

[0045] The punch plate 401 has an upstream end and a downstream end, the upstream end of the punch plate 401 is connected to the inner groove 301; and the punch plate 401 has an inner side and an outer side, the inner side faces the inner groove 301, the outer side faces outward and is used to form a guide surface or punch surface.

[0046] The driver 402 is fixed in the inner groove 301. The output end of the driver 402 is connected to the inner side of the punching plate 401. Accordingly, the driver 402 is used to drive the punching plate 401 to rotate along its upstream end and switch between the shrinking station and the punching station.

[0047] The limiter 403 is fixed on the inner side of the punching plate 401. When the punching plate 401 is in the punching position, the working end of the limiter 403 extends outward and is inserted into the secondary lining 300 to fix the position of the punching plate 401. Correspondingly, the secondary lining 300 is provided with a fixing hole 302 adapted to the limiter 403.

[0048] Based on the above design, the actuator 402 drives the punching plate 401 to rotate, thereby causing the punching plate 401 to rotate along its upstream end and switch between the contraction position and the punching position. When the punching plate 401 is in the punching position, it is fixed by the limiter 403 to ensure that the punching plate 401 remains stable in the punching position for a long time; the limiter 403 also cooperates with the actuator 402 to distribute the impact of the water flow on the punching plate 401, thereby improving the service life of both. Conversely, when the punching plate 401 is in the contraction position, the punching plate 401 abuts against the inner groove 301, and there is no need for the limiter 403 to limit it.

[0049] During operation, the flushing plate 401 is initially located at the shrinking station. If water flushing is required, the driver 402 starts and pushes the flushing plate 401 to rotate, moving the flushing plate 401 from the shrinking station to the flushing station; then the limiter 403 is activated, and the working end of the limiter 403 is inserted into the fixing hole 302 to fix the flushing plate 401. After the water flushing is completed, the limiter 403 and the driver 402 reset sequentially, and the flushing plate 401 also resets from the flushing station to the shrinking station.

[0050] In one possible implementation, the punch plate 401 has a three-proof coating on at least its outer surface. Based on the above design, the three-proof coating improves the performance of the punch plate 401, reduces or even prevents corrosion, ensures the mechanical properties of the punch plate 401, and extends its service life. It is readily understood that the three-proof coating can be made by applying any suitable existing material.

[0051] In one possible implementation, the actuator 402 includes several first telescopic rods connected in parallel, and the limiter 403 includes several second telescopic rods connected in parallel. Accordingly, the first and second telescopic rods are staggered. Based on this design, the first and second telescopic rods can each be selected from any suitable existing models, offering a wide range of choices and good practicality. Furthermore, it is preferable that the first and second telescopic rods be of the same model to reduce economic costs. In addition, by staggering them, mutual obstruction is avoided, ensuring that both can function normally.

[0052] In one possible implementation, a humidity sensor and a dryer 500 are installed within the inner groove 301, with the humidity sensor electrically connected to the dryer 500. Based on this design, the humidity within the inner groove 301 is relatively high, especially when the punching plate 401 is in the punching position. Since the inner groove 301 is connected to the cavity 100, liquid flowing through the cavity 100 will enter the inner groove 301, significantly increasing its humidity. In the punching component 400, the punching plate 401 can improve its protective capabilities through a three-proof layer. The actuator 402 and the limiter 403 are dried by the dryer 500, reducing the humidity within the inner groove 301 and thus protecting the actuator 402 and the limiter 403.

[0053] Furthermore, humidity is monitored by a humidity sensor to enable the dryer 500 to operate automatically, thereby reducing the workload of staff.

[0054] In one possible design, the inner wall of the groove 301 is constructed as an inclined surface sloping towards the downstream end of the punching plate 401 to form a water guiding surface. Based on the above design, the water guiding surface is designed to minimize liquid retention in the groove 301, especially when the punching plate 401 is in the punching position. Liquid flowing through the cavity 100 will enter the groove 301, thereby reducing the working time of the dryer 500 and reducing energy consumption.

[0055] In one possible implementation, several fixing holes 302 are provided to form a fixing group, and the fixing group has at least one fixing group. Correspondingly, when there are multiple fixing groups, the punching plate 401 has multiple punching stations to form multiple punching surfaces with different inner diameters. Based on the above design scheme, multiple punching surfaces with different inner diameters are formed by setting multiple fixing groups, and the punching effect of each punching surface is different, so as to facilitate the selection by the operator and improve practicality.

[0056] In one possible implementation, the fixing hole 302 is provided with an elastic element and a sealing plate. The elastic element has two opposing ends. One end of the elastic element is fixed to the bottom of the fixing hole 302, and the other end of the elastic element extends along the fixing hole 302 and connects to the sealing plate. The sealing plate is slidably disposed on the fixing hole 302 through a dynamic sealing element. Based on the above design, the sealing plate is lifted by the elastic element, thereby sealing the fixing hole 302 and preventing the accumulation of various impurities in the fixing hole 302 and causing blockage. This ensures that the limiter 403 can be effectively inserted into the fixing hole 302, guaranteeing the limiting effect of the limiter 403.

[0057] Optionally, the elastic element may include, but is not limited to, a spring, and the dynamic seal may be any suitable existing model.

[0058] In one possible implementation, the primary lining 200 is provided with several first anchor bolts 201, and the secondary lining 300 is selectively provided with several second anchor bolts. Based on the above design scheme, the primary lining 200 ensures structural strength and construction quality through the first anchor bolts 201. If the construction quality of the secondary lining 300 meets the design requirements, second anchor bolts may not be required to reduce construction procedures and costs. However, if the construction quality does not meet the design requirements, second anchor bolts must be provided on the secondary lining 300 to ensure structural strength and safety.

[0059] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A diversion tunnel excavation lining structure, characterized in that, It includes the tunnel body (100), the primary lining (200), the secondary lining (300), and the punching components (400); The cavity (100) has a basic shape and length; the first lining (200) and the second lining (300) are sequentially arranged on the inner wall surface of the cavity (100); The secondary lining (300) is provided with an inner groove (301), and a punching member (400) is provided on the inner groove (301). The punching member (400) has a shrinking position that is housed in the inner groove (301) and a punching position that rotates to the outside of the inner groove (301). Correspondingly, when the punch (400) is in the shrinkage position, the outer wall surface of the punch (400) is flush with the inner wall surface of the secondary lining (300) and forms a flow guide surface; when the punch (400) is in the punching position, the punch (400) moves towards the axis of the tunnel body (100) and forms a punching surface with an inner diameter smaller than the flow guide surface.

2. The diversion tunnel excavation lining structure according to claim 1, characterized in that, The secondary lining (300) is provided with at least one punch group, each punch group including two opposing inner grooves (301), and correspondingly, each inner groove (301) is provided with a punch element (400).

3. The diversion tunnel excavation lining structure according to claim 2, characterized in that, The punching component (400) includes a punching plate (401), a driver (402), and a limiter (403); The punch plate (401) has an upstream end and a downstream end, the upstream end of the punch plate (401) is connected to the inner groove (301); and the punch plate (401) has an inner side and an outer side, the inner side facing the inner groove (301), the outer side facing outward and used to form a guide surface or punch surface. The driver (402) is fixed in the inner groove (301). The output end of the driver (402) is connected to the inner side of the punching plate (401). Accordingly, the driver (402) is used to drive the punching plate (401) to rotate along its upstream end and switch between the shrinking station and the punching station. The limiter (403) is fixed on the inner side of the punching plate (401). When the punching plate (401) is in the punching position, the working end of the limiter (403) extends outward and is inserted into the secondary lining (300) to fix the position of the punching plate (401). Correspondingly, the secondary lining (300) is provided with a fixing hole (302) adapted to the limiter (403).

4. The diversion tunnel excavation lining structure according to claim 3, characterized in that, The punch plate (401) has a three-proof layer on at least the outer side.

5. The diversion tunnel excavation lining structure according to claim 3, characterized in that, The driver (402) includes a plurality of first telescopic rods connected in parallel, and the limiter (403) includes a plurality of second telescopic rods connected in parallel, with the first and second telescopic rods being staggered.

6. The diversion tunnel excavation lining structure according to any one of claims 3-5, characterized in that, A humidity sensor and a dryer (500) are provided in the inner groove (301), and the humidity sensor is electrically connected to the dryer (500).

7. The diversion tunnel excavation lining structure according to claim 6, characterized in that, The inner wall of the groove (301) is constructed as an inclined surface that slopes towards the downstream end of the punch plate (401) to form a water guiding surface.

8. The diversion tunnel excavation lining structure according to claim 7, characterized in that, The fixing holes (302) are provided in a plurality of form a fixing group. The fixing group is provided at least one. Correspondingly, when the fixing group is provided in a plurality of forms, the punching plate (401) has a plurality of punching stations to form a plurality of punching surfaces with different inner diameters.

9. The diversion tunnel excavation lining structure according to claim 8, characterized in that, An elastic element and a sealing plate are provided on the fixing hole (302). The elastic element has two opposite ends. One end of the elastic element is fixed to the bottom of the fixing hole (302), and the other end of the elastic element extends along the fixing hole (302) and connects to the sealing plate. The sealing plate is slidably disposed on the fixing hole (302) through a dynamic sealing element.

10. The diversion tunnel excavation lining structure according to claim 8 or 9, characterized in that, A number of first anchor bolts (201) are provided on the first lining (200), and a number of second anchor bolts are selectively provided on the second lining (300).

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