High-integration telescopic drilling and blasting platform for tunnel drilling and blasting construction
By designing a highly integrated, retractable tunnel drilling and blasting platform, the problems of simple platform structure and easy slippage of drill rods were solved, enabling efficient turnover and safe construction of multi-section tunnels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-03-10
AI Technical Summary
Existing tunnel drilling and blasting platforms have a simple structure, making them unsuitable for multi-section tunnels. They also have low recycling rates, and drill rods are prone to slippage, posing high safety risks.
Design a highly integrated, retractable tunnel drilling and blasting platform. It adopts a retractable drilling and blasting platform assembly and a drill rod extension and retraction cylinder, integrates water and air supply pipelines, and sets up drill rod extension and retraction hooks to ensure drill rod stability and standardized pipeline layout.
It enables the efficient reuse of multi-section caverns, reduces construction costs, improves safety and construction efficiency, and ensures a safe and civilized construction environment.
Smart Images
Figure CN223984473U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of construction technology of water conservancy and hydropower engineering and highway tunnel engineering, and relates to a tunnel drilling and blasting construction drilling and blasting platform, especially a highly integrated telescopic tunnel drilling and blasting construction drilling and blasting platform. Background Technology
[0002] Drill-and-blast construction offers significant advantages, including high cost, efficiency, and adaptability to various geological conditions and tunnel diameters. Therefore, it is the most important and commonly used technique for tunnel excavation in water conservancy, hydropower, and highway engineering projects. In recent years, the requirements for equipment turnover and safe and civilized construction management have become increasingly stringent during engineering projects.
[0003] However, existing tunnel drilling and blasting platforms have the following disadvantages:
[0004] 1. During construction, the drilling and blasting platform has a fixed and simple structure, which cannot be used for multiple structural sections of underground cavern groups. The recycling rate is low, the modification cost is high, and the construction efficiency is low.
[0005] 2. The water supply, air supply and power supply pipelines at the tunnel drilling and blasting platform are numerous and intertwined, which makes construction inconvenient and results in a poor appearance of safe and civilized construction.
[0006] 3. During the construction and relocation of the drilling and blasting trolley, the drill rods cannot be placed in an orderly manner. They are placed on the side of the trolley and tied with steel wire. When the trolley is moved, the front is higher than the back, and the drill rods are not placed stably, which poses a risk of falling and injuring people.
[0007] Therefore, in order to solve these problems, this utility model proposes a highly integrated, scalable tunnel drilling and blasting platform. Summary of the Invention
[0008] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a highly integrated, retractable tunnel drilling and blasting platform to solve the technical problems of existing drilling and blasting platforms having a single structure, being unsuitable for use in multi-section tunnels, and having high safety risks due to easy slippage of drill rods.
[0009] To achieve the above and other related objectives, this utility model provides a highly integrated telescopic tunnel drilling and blasting platform, including a drilling and blasting gantry frame. Several telescopic drilling and blasting platform components are fixedly connected to both sides of the drilling and blasting gantry frame along its height direction. A telescopic drilling and blasting platform component is also provided on the top of the drilling and blasting gantry frame. An inclined drill rod retraction cylinder is fixedly connected to both side walls of the drilling and blasting gantry frame. A drill rod retraction hook is provided on the extension line of the drill rod retraction cylinder, and the drill rod retraction hook is fixedly connected to the drilling and blasting gantry frame.
[0010] In any of the above embodiments, it is preferred that the upper ends of the front and rear sides of the drilling and blasting rig gantry are fixedly connected with crossbars, and the crossbars are fixedly connected with the inner wall of the drilling and blasting rig gantry by reinforcing diagonal braces.
[0011] Preferably, in any of the above embodiments, a connecting block is fixed on the crossbar, and the connecting block has a trolley relocation operation hole.
[0012] Preferably, in any of the above embodiments, the angle between the drill rod take-up and take-down cylinder and the horizontal plane is 8 to 12°.
[0013] Preferably, in any of the above embodiments, the drill-and-blast platform assembly includes a drill-and-blast platform, which is welded to the top and side wall of the drill-and-blast platform gantry, respectively, and the side wall of the drill-and-blast platform is welded with telescopic side wings.
[0014] In any of the above embodiments, the preferred embodiment is that the telescopic side wing includes several parallel first steel pipes, one end of which is welded to the side wall of the drilling and blasting platform, the other end of which is suspended, and at least two telescopic second steel pipes are sleeved inside the suspended end of the first steel pipe.
[0015] Preferably, in any of the above embodiments, the drilling and blasting platform and the telescopic side wings are both covered with steel mesh.
[0016] Preferably, in any of the above embodiments, the drilling and blasting platform is provided with detachable protective railings on both the front and rear sides.
[0017] Preferably, in any of the above embodiments, the drilling and blasting platform is equipped with a detachable ladder.
[0018] In any of the above embodiments, it is preferred that the drilling and blasting rig gantry is provided with an integrated water supply pipeline and an integrated air supply pipeline along the circumference of the gantry, and the outlet ends of the integrated water supply pipeline and the integrated air supply pipeline are respectively connected to a working branch pipe through a working branch gate valve.
[0019] As described above, the highly integrated, retractable tunnel drilling and blasting platform of this utility model has the following beneficial effects:
[0020] 1. In this utility model, the drilling and blasting platform adopts an integrated combination structure, which integrates the systems required for tunnel drilling and blasting support onto the trolley in a highly integrated manner, ensuring that it meets the requirements for multi-section tunnel construction.
[0021] 2. In this utility model, the setting of multiple drilling and blasting platforms and telescopic side wings solves the problem of the turnover of multi-structure cross-section caverns. It can be used for multiple structure cross-section cavern sections of underground cavern groups, with high recycling rate, low construction cost and high construction efficiency.
[0022] 3. In this utility model, the integrated pipeline setup ensures a standardized, safe, and clearly defined construction layout, effectively avoiding the cross-layout of water supply and air supply pipelines, and improving construction convenience and the appearance of safe and civilized construction.
[0023] 4. In this utility model, the drill rod retraction cylinder and drill rod retraction hook can effectively avoid the risk of the drill rod falling during the trolley relocation process, improve safety, reduce the labor intensity of workers, and thus improve the overall construction efficiency. Attached Figure Description
[0024] Figure 1 The diagram shown is a structural schematic of this utility model.
[0025] Figure 2 The image shown is a side view of this utility model.
[0026] Figure 3 The image shown is a top view of this utility model.
[0027] Figure 4 The diagram shows the connection between the integrated water supply pipeline and the working branch pipeline.
[0028] Component designation explanation
[0029] 1- Drilling and blasting trolley gantry; 2- Base; 3- Drilling and blasting platform; 4- Telescopic side wing; 5- Ladder; 6- Guardrail; 7- Steel mesh; 8- Trolley relocation operation hole; 9- Reinforcing diagonal brace; 10- Integrated water supply pipeline; 11- Integrated air supply pipeline; 12- Working branch gate valve; 13- Working branch pipe; 14- Drill rod retraction cylinder; 15- Drill rod retraction hook; 16- Drill rod; 17- Crossbar; 18- First steel pipe; 19- Second steel pipe. Detailed Implementation
[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0031] Please see Figures 1 to 4It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0032] Please see Figure 1-4 This utility model provides a highly integrated telescopic tunnel drilling and blasting construction drilling and blasting platform, including a drilling and blasting gantry frame 1. Several sets of telescopic drilling and blasting platform components are fixedly connected to both sides of the drilling and blasting gantry frame 1 along its height direction. The top of the drilling and blasting gantry frame 1 is also provided with telescopic drilling and blasting platform components. The side walls of the drilling and blasting gantry frame 1 are respectively fixedly connected to inclined drill rod retraction cylinders 14. Drill rod retraction hooks 15 are provided on the extension line of the drill rod retraction cylinders 14, and the drill rod retraction hooks 15 are fixedly connected to the drilling and blasting gantry frame 1.
[0033] In this embodiment, to address the technical problems of existing drilling and blasting operation platforms having fixed and singular structures, unable to accommodate multiple structural cross-sections of underground cavern groups, resulting in low recycling rates, high modification costs, and low construction efficiency, this embodiment proposes a highly integrated, retractable tunnel drilling and blasting operation platform. This platform includes a drilling and blasting gantry 1, with several sets of retractable drilling and blasting platform components installed on its top and side walls along its height. When the width of the drilling and blasting platform components is insufficient, the width can be extended or shortened. This simplifies operation and solves the problem of reusability for multiple structural cross-sections of caverns, allowing for use in multiple structural cross-sections of underground cavern groups, resulting in high recycling rates, low construction costs, and high construction efficiency.
[0034] In this embodiment, the drilling and blasting trolley gantry 1 forms the overall stability support structure of the working platform, and is formed by welding or rigidly hinged I16 I-beams. The bottom base 2 of the drilling and blasting trolley gantry 1 is made of double I16 I-beams, and the two ends of the bottom longitudinal beam are cut into inverted triangles to ensure stable movement and structural support during trolley transportation.
[0035] To further increase the stability of the drilling and blasting gantry frame 1, in this embodiment, a crossbar 17 is provided on the drilling and blasting gantry frame 1. Two reinforcing diagonal braces 9 are respectively provided at the upper and lower ends of the crossbar to form a triangular support with the inner wall of the drilling and blasting gantry frame 1, thereby forming a stable structural force system.
[0036] In this embodiment, the structural dimensions of the drilling and blasting platform are selected based on the overall cross-section of the tunnel structure to ensure that the bottom dimensions are suitable for the simultaneous movement of equipment such as loaders and dump trucks, and to consider the cyclical use of each cross-section tunnel.
[0037] To address the technical problems in existing drilling and blasting trolleys where drill rods cannot be placed in an orderly manner during construction and relocation, requiring them to be tied to the sides of the trolley with steel wire, and resulting in an unstable placement of the drill rods (higher at the front and lower at the back) and a risk of them falling and injuring people, this embodiment incorporates a drill rod storage assembly on the drilling and blasting trolley gantry 1. This assembly includes a drill rod storage cylinder 14 and a drill rod storage hook 15 aligned with the centerline of the cylinder 14. Both the cylinder 14 and the hook 15 are welded to the side wall of the gantry 1. After completing one cycle of operation, one end of the drill rod 16 is placed inside the cylinder 14, and the other end is hooked onto the hook 15. To further ensure the stability of the drill rod 16, it can be securely bound with wire after being placed in the cylinder 14 and hook 15.
[0038] Meanwhile, to further prevent the drill rod 16 from slipping during relocation, in this embodiment, the drill rod take-up and drop cylinder 14 is tilted upwards at an angle of 10°. During the trolley relocation process, the drill rod 16 maintains an upward posture and will not slip, facilitating construction while improving safety. Of course, the tilt angle of the drill rod take-up and drop cylinder 14 is not limited to 10°; other tilt angles that prevent the drill rod 16 from slipping are also possible, such as an upward tilt of 8–12°.
[0039] As a further description of the above embodiment, a connecting block is fixed on the crossbar 17, and a trolley relocation operation hole 8 is provided on the connecting block.
[0040] In this embodiment, the trolley relocation operation hole 8 is located at the rear end of the trolley. During the drilling, blasting, and support operations, the trolley is relocated using a loader. The specific relocation method is prior art, and those skilled in the art can understand it based on existing technology; therefore, it will not be described further in this embodiment.
[0041] As a further description of the above embodiment, the drill-and-blast platform assembly includes a drill-and-blast platform 3, which is welded to the top and side wall of the drill-and-blast platform gantry 1. A telescopic side wing 4 is welded to the side wall of the drill-and-blast platform 3. The telescopic side wing 4 includes several parallel first steel pipes 18. One end of each first steel pipe 18 is welded to the side wall of the drill-and-blast platform 3, and the other end of each first steel pipe 18 is suspended in the air. At least two telescopic second steel pipes 19 are fitted inside the suspended end of each first steel pipe 18.
[0042] In this embodiment, when the width of the drilling and blasting platform 3 cannot meet the usage requirements, it is necessary to adjust the distance between the drilling and blasting platform 3 and the inner wall of the cave to ensure that the width of the drilling and blasting platform 3 meets the drilling and blasting support construction of each cross-section of the cave. This can be achieved by extending or shortening the second steel pipe 19 inside the telescopic sidewall.
[0043] In this embodiment, the first steel pipe 18 is a φ80 steel pipe, welded to the suspended end of the drilling and blasting platform 3 or welded to the lower surface of the drilling and blasting platform 3. A φ50 steel pipe and a φ48 steel pipe are sequentially nested inside the first steel pipe 18. The size and length of the first steel pipe 18 and the second steel pipe 19 can be adjusted according to construction requirements.
[0044] Of course, the telescopic side wing 4 is not limited to using the sleeved first steel pipe 18 and second steel pipe 19 to extend or shorten. Other structures that can achieve the telescopic function are also acceptable, such as electric telescopic rods, pneumatic telescopic rods, etc.
[0045] To ensure the stability of the drilling and blasting platform 3, a triangular support structure can be formed by welding diagonal supports to the drilling and blasting trolley gantry 1 bracket on the lower surface of the drilling and blasting platform 3.
[0046] To ensure construction safety, in this embodiment, steel mesh 7 is laid on both the drilling and blasting platform 3 and the telescopic side wings 4. The outer main reinforcement of the steel mesh 7 is made of C22mm steel bars, and the inner reinforcement is made of C12mm steel bars. The size of the steel mesh 7 is 10×10cm.
[0047] To prevent workers from accidentally falling during operation and to further ensure safety during construction, this embodiment includes detachable guardrails 6 on both the front and rear sides of the drilling and blasting platform 3. Specifically, insertion holes are provided on both the front and rear sides of the drilling and blasting platform 3, and the guardrails 6 are of an insertable structure. The guardrails 6 are detachably connected to the drilling and blasting platform 3 through the insertion holes, facilitating their movement and adjustment to meet different usage needs.
[0048] To facilitate workers' access to drilling and blasting platforms 3 at different heights, this embodiment includes a detachable ladder 5 on the drilling and blasting platform 3. Specifically, the ladder 5 is welded from 50*50mm angle steel, and its outer side features a 50*6mm flat iron welded into an arc-shaped protective structure. The top of the ladder 5 is welded with hooks that match the insertion holes on the drilling and blasting platform 3, allowing for easy connection and use of the ladder 5 with different drilling and blasting platforms 3.
[0049] As a further description of the above embodiment, the drilling and blasting trolley gantry 1 is provided with an integrated water supply pipeline 10 and an integrated air supply pipeline 11 along the circumference of the gantry. The outlet ends of the integrated water supply pipeline 10 and the integrated air supply pipeline 11 are respectively connected to a working branch pipe 13 through a working branch gate valve 12.
[0050] This embodiment addresses the technical problem of numerous and intertwined water and air supply pipelines at the tunnel drilling and blasting platform, which leads to inconvenience during construction and a poor appearance of safe and civilized construction. Specifically, an integrated pipeline system is proposed. The integrated water supply pipeline 10 and integrated air supply pipeline 11 are arranged circumferentially along the gantry of the drilling and blasting rig gantry 1, serving as the main system pipelines. A working branch gate valve 12 is installed on the drilling and blasting support platform for supply and demand control. A working branch pipe 13 is installed at the rear end of the working branch gate valve 12 for drilling and blasting operations at the working face. Utilizing the air manifold control principle, multiple working branch pipes 13 can be installed on the main system pipelines. This effectively avoids the need for complex pipeline layouts and improves the appearance of safe and civilized construction.
[0051] In summary, this utility model's drilling and blasting platform adopts an integrated modular structure, highly integrating the systems required for tunnel drilling and blasting support onto the trolley, ensuring compatibility with multi-section tunnel construction; and effectively preventing drill rods from falling, thus improving construction safety. Therefore, this utility model effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.
[0052] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A high-integration scalable tunnel drilling and blasting construction drilling and blasting platform, comprising a drilling and blasting platform trolley gantry (1), characterized in that: The drill and blast platform truck portal (1) is fixedly connected with several groups of telescopic drill and blast platform assemblies along the height direction on both sides thereof, the top of the drill and blast platform truck portal (1) is also provided with a telescopic drill and blast platform assembly, the side walls of the drill and blast platform truck portal (1) are fixedly connected with the obliquely arranged drill rod winding and unwinding drums (14), the drill rod winding and unwinding hooks (15) are arranged on the extension lines of the drill rod winding and unwinding drums (14), and the drill rod winding and unwinding hooks (15) are fixedly connected to the drill and blast platform truck portal (1).
2. The highly integrated scalable tunnel drilling and blasting construction drilling and blasting platform according to claim 1, characterized in that: The drill and blast platform truck portal (1) is fixedly connected with the cross bars (17) at the upper ends of the front and rear surfaces thereof, and the cross bars (17) are fixedly connected with the reinforcing inclined braces (9) between the cross bars (17) and the inner walls of the drill and blast platform truck portal (1).
3. The highly integrated scalable tunnel drilling and blasting construction drilling and blasting platform according to claim 2, characterized in that: The cross bars (17) are fixedly connected with the connecting blocks, and the connecting blocks are provided with the truck moving and setting operation holes (8).
4. The highly integrated scalable tunnel drilling and blasting construction drilling and blasting platform according to claim 1, characterized in that: The included angle between the drill rod winding and unwinding drums (14) and the horizontal plane is 8-12°.
5. The highly integrated scalable tunnel drilling and blasting platform according to claim 1, characterized in that: The drill and blast platform assembly comprises the drill and blast platform (3), the drill and blast platform (3) is welded to the top and the side walls of the drill and blast platform truck portal (1), and the side walls of the drill and blast platform (3) are welded with the telescopic side wings (4).
6. The highly integrated scalable tunnel drilling and blasting construction drilling and blasting platform according to claim 5, characterized in that: The telescopic side wings (4) comprise several first steel pipes (18) arranged in parallel, one end of the first steel pipe (18) is welded to the side wall of the drill and blast platform (3), the other end of the first steel pipe (18) is suspended, and at least two second steel pipes (19) are sleeved in the suspended end of the first steel pipe (18).
7. The highly integrated scalable tunnel drilling and blasting platform according to claim 5, characterized in that: The drill and blast platform (3) and the telescopic side wings (4) are both paved with the steel mesh (7).
8. The highly integrated scalable tunnel drilling and blasting construction drilling and blasting platform according to claim 5, characterized in that: The drill and blast platform (3) is provided with the detachable guardrails (6) on the front and rear sides thereof.
9. The highly integrated scalable tunnel drilling and blasting platform according to claim 5, characterized in that: The drill and blast platform (3) is provided with the detachable ladders (5).
10. The highly integrated scalable tunnel drilling and blasting platform according to claim 1, characterized in that: The integrated water supply pipeline (10) and the integrated air supply pipeline (11) are arranged on the drill and blast platform truck portal (1) along the circumference of the portal, and the outlet ends of the integrated water supply pipeline (10) and the integrated air supply pipeline (11) are connected with the working branch pipes (13) through the working branch valve (12).