Central deeply-buried water pipe connector structure of plateau high and cold tunnel

Abstract

The utility model provides a plateau high and cold tunnel center deep-buried water pipe connector structure which comprises an upper building block and a lower building block, and arc-shaped grooves corresponding to a water pipe are formed in the middle of the upper building block and the middle of the lower building block so that the upper building block and the lower building block can correspondingly embrace the upper side and the lower side of a water pipe connector. A pouring groove which corresponds to the water pipe and extends along the arc-shaped groove is formed in the middle of the arc-shaped groove, and a pouring hole is formed in the top of the upper building block and extends to the pouring groove. The water pipe connector is supported in a building block splicing mode, cement pouring is conducted through the pouring holes, the water pipe and the building blocks are fixedly connected into a whole, and therefore the stability of the water pipe is guaranteed, and the possibility that the water pipe inclines due to sedimentation is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel construction, specifically relating to a structure for a deep-buried water pipe joint in the center of a high-altitude and cold-climate tunnel. Background Technology

[0002] In cold and frigid regions, tunnel waterproofing and drainage should be combined with insulation measures, emphasizing both blocking and drainage, as well as frost prevention and insulation, to ensure smooth drainage. Given the complexity of groundwater variations in the surrounding rock and considering the impact of groundwater trends on the tunnel, the principle of prevention is paramount in waterproofing and drainage in cold and frigid regions. Generally, a central drainage pipe is installed at the bottom of the tunnel invert. The traditional construction method is to pre-connect the two water pipe joints deeply buried in the center, then erect an arc-shaped formwork and pour concrete. This results in low construction efficiency. The deeply buried water pipe is prone to disturbance and deformation due to the influence of construction machinery and blasting inside the tunnel, affecting the linear smoothness of the central buried water pipe and leading to poor drainage.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides a structure for a deep-buried water pipe joint in the center of a high-altitude and cold-climate tunnel.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A deep-buried water pipe joint structure in the center of a high-altitude and cold-climate tunnel includes an upper block and a lower block. The upper block and the lower block are provided with arc-shaped grooves corresponding to the water pipe in the middle, so as to hug the upper and lower sides of the water pipe interface.

[0007] A pouring groove corresponding to a water pipe is provided in the middle of the arc-shaped groove, extending along the arc-shaped groove. A pouring hole is provided on the top of the upper block, and the pouring hole extends to the pouring groove.

[0008] Preferably, a rubber plate is provided between the upper block and the lower block, and sealing strips for water pipes are provided on both sides of the arc-shaped groove corresponding to the casting groove.

[0009] Preferably, the side walls of the upper block and the lower block are inclined surfaces, so that the upper block and the lower block form a stepped structure after they embrace the water pipe.

[0010] Preferably, the cross-section of the excavation trench for the water pipe in the center of the tunnel is an inverted trapezoid corresponding to the upper block and the lower block.

[0011] Preferably, a threaded sleeve is pre-embedded in the casting hole, and a threaded plug is fitted into the threaded sleeve.

[0012] Preferably, the arc-shaped groove has mounting grooves on both sides corresponding to the sealing strip.

[0013] Preferably, the upper block and the lower block are precast concrete components.

[0014] Beneficial effects: The water pipe joints are supported by a block splicing method, and cement is poured through the pouring hole to solidify the water pipe and the blocks into one, thereby ensuring the stability of the water pipe and avoiding the possibility of the water pipe tilting due to settlement. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0016] Figure 1 This is a simplified assembly diagram of the connector structure in a specific embodiment of this utility model;

[0017] Figure 2 This is a simplified cross-sectional view of the connector structure in a specific embodiment provided by this utility model;

[0018] Figure 3 This is an exploded view of the joint structure in a specific embodiment of this utility model.

[0019] In the diagram: 1. Tunnel; 2. Lower block; 3. Upper block; 4. Installation hole; 5. Water pipe; 6. Rubber sheet; 7. Pouring hole; 8. Screw sleeve; 9. Pouring trough; 10. Sealing strip. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0021] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0023] like Figure 1-3 As shown, a deep-buried water pipe joint structure in the center of a high-altitude and cold-climate tunnel is provided. A water pipe 5 excavation trench is provided at the bottom of the tunnel 1 for laying the water pipe 5 to assist drainage. The joint structure includes an upper block 3 and a lower block 2. An arc-shaped groove corresponding to the water pipe 5 is provided in the middle of the side of the upper block 3 and the lower block 2 that are close to each other. The diameter of the arc-shaped groove is adapted to the diameter of the water pipe 5. Specifically, it is prefabricated according to the end face of the water pipe 5 to be constructed. The upper block 3 and the lower block 2 respectively hug each other from the upper and lower sides of the water pipe 5 interface, thereby assisting the connection at the water pipe 5 interface. The support ensures the stability of the water pipe 5 and avoids reducing the possibility of the water pipe 5 tilting due to settlement. A pouring groove corresponding to the water pipe 5 is provided in the middle of the arc-shaped groove, extending along the arc-shaped groove. The pouring grooves of the upper block 3 and the lower block 2 are interconnected to form an annular pouring space at the interface of the corresponding water pipe 5. A pouring hole 7 is provided at the top of the upper block 3, and the pouring hole 7 extends to the pouring groove. After the water pipe 5 is connected, the two water pipes 5 are solidified into one by cement pouring to ensure the sealing performance of the water pipe 5 connection.

[0024] In one optional embodiment, the upper block 3 and the lower block 2 are precast concrete components, thus having a large mass. Under the action of gravity, the upper block 3 and the lower block 2 are sealed by compression, preventing grout leakage during the grouting process. Furthermore, a rubber plate 6 is provided between the upper block 3 and the lower block 2. There are two rubber plates 6, located on both sides of the water pipe 5, and the shape of the rubber plates 6 is adapted to the contact surface of the upper block 3 and the lower block 2. Under the action of gravity, compression ensures a seal. The arc-shaped groove is provided on both sides of the casting groove 9, corresponding to the sealing strips 10 of the water pipe 5. The sealing strips 10 of the upper block 3 and the lower block 2 are connected to each other to form two annular sealing structures corresponding to the water pipe 5. The inner diameter of the sealing strip 10 is smaller than the outer diameter of the water pipe 5, so that it can be deformed by compression to improve the sealing ability.

[0025] In an optional embodiment, both the upper block 3 and the lower block 2 are trapezoidal platform structures. The side walls of the upper block 3 and the lower block 2 are located on the same inclined plane so that the upper block 3 and the lower block 2 can form a trapezoidal platform structure after hugging the water pipe 5, thereby adapting to the excavation trench of the water pipe 5. In this embodiment, the cross section of the water pipe 5 excavation trench in the center of the tunnel 1 is an inverted trapezoid corresponding to the upper block 3 and the lower block 2. The water pipe 5 excavation trench is compacted at the position of the corresponding lower block 2, and the trapezoidal structure is used to connect the water pipe 5 excavation trench to reduce the possibility of settlement.

[0026] In an optional embodiment, a threaded sleeve 8 is pre-embedded in the casting hole 7. The threaded sleeve 8 is a metal tube with internal threads inside. A plug is fitted into the internal threads of the threaded sleeve 8, and the plug is used to seal the hole after casting.

[0027] Assembly slots for corresponding sealing strips 10 are provided on both sides of the arc-shaped groove. The assembly slots of the upper block 3 and the lower block 2 are connected to each other to form a ring structure for the corresponding sealing strips 10.

[0028] In one optional embodiment, a plurality of downwardly extending steel rods are provided at the bottom of the lower block 2, which are inserted into the excavated groove of the water pipe 5 to ensure stability during the connection process of the water pipe 5. Furthermore, lifting rings are provided on both sides of the upper block 3 and the lower block 2 corresponding to the axial direction of the water pipe 5, so as to facilitate hoisting and installation.

[0029] In an optional embodiment, in order to ensure the stability of the docking, the contact surfaces of the upper block 3 and the lower block 2 are respectively provided with longitudinally extending mounting holes 4. A connecting post is provided in the mounting hole 4. The connecting post passes through the rubber plate 6, with one end extending into the mounting hole 4 of the lower block 2 and the other end extending into the mounting hole 4 of the upper block 3, thereby ensuring the docking accuracy of the upper block 3 and the lower block 2.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A structure for a deeply buried water pipe joint in the center of a high-altitude, cold-climate tunnel, characterized in that, It includes an upper block and a lower block, and the upper block and the lower block are provided with arc-shaped grooves in the middle of the corresponding water pipes, so as to hug the upper and lower sides of the water pipe interface. A pouring groove corresponding to a water pipe is provided in the middle of the arc-shaped groove, extending along the arc-shaped groove. A pouring hole is provided on the top of the upper block, and the pouring hole extends to the pouring groove.

2. The deep-buried water pipe joint structure in the center of a high-altitude, cold-climate tunnel according to claim 1, characterized in that, A rubber plate is provided between the upper block and the lower block, and sealing strips for water pipes are provided on both sides of the arc-shaped groove corresponding to the casting groove.

3. The deep-buried water pipe joint structure in the center of a high-altitude, cold-climate tunnel according to claim 1, characterized in that, The side walls of the upper block and the lower block are inclined surfaces so that the upper block and the lower block can form a stepped structure after they hug the water pipe.

4. The deep-buried water pipe joint structure in the center of a high-altitude, cold-climate tunnel according to claim 3, characterized in that, The cross-section of the excavation trench for the water pipe in the center of the tunnel is an inverted trapezoid corresponding to the upper and lower masonry blocks.

5. The deep-buried water pipe joint structure in the center of a high-altitude, cold-climate tunnel according to claim 1, characterized in that, A threaded sleeve is pre-embedded in the casting hole, and a threaded plug is fitted into the threaded sleeve.

6. The deep-buried water pipe joint structure in the center of a high-altitude, cold-climate tunnel according to claim 2, characterized in that, The arc-shaped groove has mounting grooves on both sides corresponding to the sealing strip.

7. The deep-buried water pipe joint structure in the center of a high-altitude, cold-climate tunnel according to claim 1, characterized in that, The upper block and the lower block are precast concrete components.

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