A system for preventing the downslide of a drainage pipe in an inclined drift

Abstract

The utility model discloses a system for preventing the drainage pipe in the inclined drift from sliding along the drift, the drainage pipe is arranged in the middle part of the lateral wall of the drift due to the low height of the drift, and further, the drainage pipe is arranged in the middle part of the lateral wall of the drift; The system comprises a plurality of pipeline fixing units, each pipeline fixing unit is arranged at intervals along the inclined drift; Each pipeline fixing unit comprises: a pipeline fixing clamping plate, which is in the shape of "c", and is arranged with its opening facing the lateral wall of the drift; Its inner cavity is used for the passage of the drainage pipe, and an upper reinforcing block is made of concrete pouring and surrounds the pipeline fixing clamping plate, and is used for pouring the pipeline fixing clamping plate and the drainage pipe on the lateral wall of the drift together, thereby avoiding the sliding of the drainage pipe along the drift; The utility model realizes the double fixing mode of mechanical clamping and concrete integral pouring, solves the technical problem that the drainage pipe in the inclined drift is easy to slide along the gradient direction, and significantly improves the pipeline fixing reliability, reduces the maintenance frequency and reduces the safety hazards.

Description

Technical Field

[0001] This utility model belongs to the field of pipe fixing in mine roadway engineering, and particularly relates to a system for preventing drainage pipes in inclined roadways from sliding down the roadway. Background Technology

[0002] In underground roadways of coal mines and non-coal mines, drainage systems are a crucial component for ensuring safe production. Due to geological constraints, many roadways are laid at an angle with limited height, resulting in drainage pipes often being laid along the middle of the roadway sidewall. To ensure the safe operation of these pipes, they must be effectively secured to prevent slippage caused by their own weight, water flow impact, or vibration.

[0003] While existing technologies can achieve basic pipeline positioning, they lack an overall anti-slip design. During long-term service, issues such as loosening of pipe clamps can easily occur, leading to gradual displacement or even detachment of the pipeline. This not only affects drainage function but may also cause safety accidents. Especially in low-ceilinged alleys where maintenance space is limited, repairs are difficult and costly once slippage occurs. Utility Model Content

[0004] The purpose of this invention is to provide a system for preventing drainage pipes in inclined tunnels from sliding down the tunnel, thereby solving the problem of drainage pipes sliding down the tunnel.

[0005] The present invention adopts the following technical solution: a system for preventing drainage pipes in inclined tunnels from sliding down the tunnel, wherein the drainage pipes are arranged in the middle of the side wall of the tunnel due to the low height of the tunnel. The system includes multiple pipeline fixing units, which are spaced apart along the inclined roadway; Each pipeline fixing unit includes: The pipe fixing plate is "C" shaped with its opening facing the side wall of the tunnel. Its inner cavity is used for the drainage pipe to pass through. Its two ends extend upward and downward respectively to form ear plates. Anchoring holes are opened on both ear plates. Each anchoring hole is used for anchor rods to pass through and anchor into the side wall of the tunnel, thereby fixing the drainage pipe to the side wall of the tunnel. The upper reinforcing block is made of concrete and is cast around the pipe fixing plate. It is used to connect the pipe fixing plate and the drainage pipe and is cast together on the side wall of the tunnel to prevent the drainage pipe from sliding down the tunnel.

[0006] The beneficial effects of this utility model are: This utility model realizes a dual fixing method of mechanical clamping and integral concrete pouring, which solves the technical problem that drainage pipes in inclined tunnels are prone to sliding down the slope direction, significantly improving the reliability of pipeline fixing, reducing maintenance frequency, and reducing safety hazards; This utility model uses a C-shaped pipe fixing plate and anchor rods in conjunction with the anchoring holes on the ear plate to firmly anchor the pipe to the side wall of the roadway, thus forming a rigid connection between the drainage pipe and the roadway. At the same time, the upper reinforcing block formed by concrete pouring completely wraps the pipe fixing plate and the drainage pipe, enhancing the overall integrity and anti-slip ability of the structure. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the pipeline fixing plate of this utility model; Figure 3 This is a schematic diagram of the upper and lower reinforcing blocks of this utility model.

[0008] Among them: 10. Pipeline fixing unit; 11. Pipeline fixing plate; 12. Ear plate; 13. Upper reinforcing block; 14. Lower reinforcing block; 15. Reinforcing anchor bolt; 16. Drainage pipe; 17. Roadway. Detailed Implementation

[0009] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0010] In inclined mine roadways, due to the slope of the roadway, the drainage pipe 16 is at risk of sliding downwards along the roadway under the influence of external factors such as gravity and operational vibrations. Especially when the roadway is low, to meet the space requirements for passage and equipment placement, the drainage pipe 16 is usually positioned in the middle of the roadway sidewall, far from the floor support area. Traditional bottom fixing or bracket support methods are difficult to implement effectively, resulting in poor anti-slip stability. While some existing technologies use clamps or metal clamps for simple mechanical fixing, these structures have weak shear resistance and are prone to failure due to loosening and corrosion over long-term use, failing to fundamentally solve the pipe sliding problem. Furthermore, under complex geological conditions, without overall reinforcement measures, localized stress concentration may cause anchor point failure, further affecting the safe operation of the entire drainage system.

[0011] This utility model discloses a system for preventing drainage pipes in inclined tunnels from sliding down the tunnel, such as... Figure 1-3 As shown, the drainage pipe 16 is located in the middle of the side wall of the tunnel due to the low height of the tunnel.

[0012] The system includes multiple pipeline fixing units 10, each of which is spaced apart along an inclined tunnel.

[0013] Each of the pipeline fixing units 10 includes: a pipeline fixing plate 11 and an upper reinforcing block 13.

[0014] The pipe fixing plate 11 is "C" shaped, with its opening facing the side wall of the tunnel. The inner cavity of the pipe fixing plate 11 is for the drainage pipe 16 to pass through. The two ends of the pipe fixing plate 11 extend upward and downward respectively to form ear plates 12. Anchoring holes are provided on both ear plates 12. Each anchoring hole is used for anchor rods to pass through and anchor into the side wall of the tunnel, thereby fixing the drainage pipe 16 to the side wall of the tunnel.

[0015] The upper reinforcing block 13 is made of concrete and is cast around the pipeline fixing plate 11. The upper reinforcing block 13 is used to connect the pipeline fixing plate 11 and the drainage pipe 16 and cast together on the side wall of the tunnel, thereby preventing the drainage pipe 16 from sliding down the tunnel.

[0016] This utility model also includes: a lower reinforcing block 14, which is made of concrete. The lower reinforcing block 14 is located below the drainage pipe 16 and is integrally connected with the upper reinforcing block 13. The lower reinforcing block 14 is cast together with the side wall of the tunnel near the tunnel side wall. The upper end of the lower reinforcing block 14 abuts against the lower side of the drainage pipe 16, and the lower end of the lower reinforcing block 14 abuts against the ground of the tunnel. The lower reinforcing block 14 is used to support and reinforce the drainage pipe 16.

[0017] The present invention also includes: a reinforcing anchor rod 15, which is inclined and passes through the upper end of the lower reinforcing block 14 from top to bottom, and extends downward to anchor into the roadway ground. The upper end of the reinforcing anchor rod 15 protrudes upward from the lower reinforcing block 14.

[0018] This invention achieves reliable positioning and anti-slip protection for the drainage pipe 16 by setting up multiple pipe fixing units 10 distributed along the roadway, combined with mechanical anchoring and integral concrete casting. The drainage pipe 16 is located in the middle of the roadway sidewall due to the limited roadway clearance. While this arrangement saves space, it weakens the traditional bottom support conditions, thus requiring lateral restraint and anchoring force transmission from the sidewall. Therefore, the pipe fixing units 10 are arranged at certain intervals along the inclined roadway, forming a continuous anti-slip node network to segmentally bear and transmit the axial downward force on the pipe, preventing overall slippage.

[0019] Specifically, each pipe fixing unit 10 includes a "C"-shaped pipe fixing clamp 11. The clamp has a semi-enclosed cross-section, with its opening facing the rock mass of the roadway sidewall. This facilitates the side insertion of the already installed drainage pipe 16, making installation convenient and eliminating the need to interrupt the pipe laying process. The inner cavity size of the pipe fixing clamp 11 is adapted to the outer diameter of the drainage pipe 16, ensuring a tight fit and applying uniform pressure to the drainage pipe 16 in the radial direction, thus improving clamping stability.

[0020] The pipeline fixing plate 11 can be made of high-strength steel, such as Q345B or higher strength structural steel, with a thickness of not less than 8mm, to ensure that it does not yield when subjected to anchoring reaction force. Its two ends extend upwards and downwards respectively to form a pair of ear plates 12, which are symmetrically arranged at the top and bottom of the pipeline fixing plate 11. Each ear plate 12 has a through anchoring hole for the anchor rod to pass through. The diameter of the anchoring hole is slightly larger than the outer diameter of the anchor rod, allowing for certain assembly tolerances, and the connection stiffness can be adjusted by welding shims. The anchor rod can be a full-length bonded resin anchor rod or a mechanically anchored anchor rod, with typical specifications of Φ18~Φ22mm and a length of 600~1200mm selected according to the surrounding rock conditions. It is driven into the rock strata of the roadway sidewall through drilling, firmly anchoring the pipeline fixing plate 11 into the stable rock mass, thereby establishing a direct mechanical connection path between the pipeline and the surrounding rock.

[0021] Furthermore, to enhance the overall structure's durability and impact resistance, an upper reinforcing block 13 is installed. This upper reinforcing block 13 is constructed from cast-in-place concrete, completely enclosing the outer contour of the pipe fixing plate 11 and extending to cover part of the drainage pipe 16 surface, thus forming an integrated composite load-bearing body composed of the pipe, the fixing plate, and the concrete. The concrete can be C25 or higher strength grade, and early-strength agents or crack-resistant fibers can be added depending on the construction environment to improve early strength and crack resistance. During pouring, the contact area between the fixing plate and the pipe must be sealed to prevent grout from seeping into the joint gaps and causing stress concentration.

[0022] The upper reinforcing block 13 not only enhances the structural rigidity of the pipe fixing plate 11, preventing it from warping or breaking under long-term loads, but more importantly, it diffuses the anchoring reaction force more evenly to the surrounding rock mass through the concrete medium, reducing local compressive stress peaks and improving the reliability of the anchoring system. Furthermore, the overall concrete encapsulation also provides corrosion protection, extending the service life of the metal components.

[0023] The pipe fixing plate 11 first clamps and positions the drainage pipe 16 using a "C"-shaped structure, and then, with the help of the ear plate 12 and anchor bolts, completes a rigid connection with the roadway sidewall. Subsequently, through the pouring of the upper reinforcing block 13, the aforementioned mechanical connection structure is further integrated and consolidated into a composite anchoring system with high shear and tensile strength. This system can effectively resist the dynamic loads caused by water hammer, temperature changes, or seismic disturbances during the operation of the drainage pipe 16, significantly improving its stability under inclined conditions.

[0024] This invention achieves effective anti-slip fixing of drainage pipe 16 in low, inclined tunnels with limited space. The use of a "C"-shaped clamping plate combined with lateral anchoring allows for installation without interrupting pipeline operation, offering strong adaptability. Furthermore, the introduction of integral concrete casting transforms the originally independent clamping plate and anchor system into a stable three-dimensional load-bearing structure, significantly enhancing anti-slip capability. In practical applications, the spacing of the fixing units 10 can be adjusted according to parameters such as tunnel slope, pipeline diameter, and conveying pressure. For example, in sections with slopes greater than 15°, the spacing can be increased to one set every 5-8 meters, while in sections with normal slopes, it can be widened to 10-15 meters, flexibly adapting to different engineering needs. Example

[0025] The pump room and its supporting pipelines in a certain mining area frequently experienced pipeline slippage. Therefore, this utility model was used for reinforcement and anti-slip purposes. Calculations show that after using this utility model, approximately 800 meters of inclined tunnel pipelines in the pump room and its supporting pipelines were reinforced, resulting in monthly maintenance cost savings of approximately 3,600 yuan and annual savings of 43,200 yuan.

[0026] 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 should be included within the protection scope of the present utility model.

Claims

1. A system for preventing drainage pipes in inclined tunnels from sliding down the tunnel, characterized in that, The drainage pipe (16) is arranged in the middle of the side wall of the tunnel; The system includes multiple pipeline fixing units (10), each of which is spaced along an inclined roadway; Each of the aforementioned pipe fixing units (10) includes: The pipe fixing plate (11) is "c" shaped and its opening faces the side wall of the roadway. Its inner cavity is used for the drainage pipe (16) to pass through. Its two ends extend upward and downward respectively to form ear plates (12). Anchor holes are opened on both ear plates (12). Each anchor hole is used for the anchor rod to pass through and anchor into the side wall of the roadway, thereby fixing the drainage pipe (16) to the side wall of the roadway. The upper reinforcing block (13) is made of concrete and is cast around the pipeline fixing plate (11). It is used to connect the pipeline fixing plate (11) and the drainage pipe (16) and cast together on the side wall of the roadway to prevent the drainage pipe (16) from sliding down the roadway.

2. The system for preventing drainage pipes in inclined tunnels from sliding down the tunnel as described in claim 1, characterized in that, Also includes: The lower reinforcing block (14) is made of concrete and is located below the drainage pipe (16) and is integrally connected with the upper reinforcing block (13). It is cast together with the side wall of the roadway near the side wall of the roadway. Its upper end abuts against the lower side of the drainage pipe (16) and its lower end abuts against the ground of the roadway. It is used to support and reinforce the drainage pipe (16).

3. A system for preventing drainage pipes in inclined tunnels from sliding down the tunnel as described in claim 2, characterized in that, Also includes: The reinforcing anchor (15) is set at an angle. It passes through the upper end of the lower reinforcing block (14) from top to bottom and extends downward to anchor into the roadway ground. Its upper end protrudes upward from the lower reinforcing block (14).

Images