Tunnel lining structure drilling device and construction method

Abstract

The application provides a tunnel lining structure drilling device and a construction method. The tunnel lining structure drilling device comprises a drill, a support rod, a first telescopic mechanism, a second telescopic mechanism, a protractor and an adjustable moving base. The first telescopic mechanism and the second telescopic mechanism are connected with the moving base. The protractor is connected with the first telescopic mechanism. The first telescopic mechanism is rotatably connected with the support rod, and the connection point corresponds to the center of the scale of the protractor. The second telescopic mechanism is slidably connected with the support rod and rotatably connected with the support rod. The end of the support rod away from the first telescopic mechanism is connected with the drill. The application provides a construction method of the tunnel lining structure drilling device. The moving base is leveled. The telescopic amount of the first telescopic mechanism and the second telescopic mechanism is adjusted to quickly and accurately open multiple hole positions of the same section. The application has the advantages of simple structure, improved drilling efficiency and quality.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a drilling device and construction method for tunnel lining structures. Background Technology

[0002] In existing technologies, the narrow space of small-section tunnels makes it difficult to deploy traditional large-scale drilling equipment. The drilling quality of the tunnel lining structure directly affects the structural stability. Traditional methods mainly rely on manual measurement (such as using measuring tapes and plumb lines) or simple rulers for positioning, which is subject to significant human error and cannot meet the accuracy requirements. Moreover, manual operation is inefficient and cannot meet the needs of batch drilling in long-distance tunnel construction. Drilling within the confined space of the tunnel lining structure typically involves manual measurement and positioning, resulting in large errors and low efficiency. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a drilling device and construction method for tunnel lining structures, which is particularly suitable for batch drilling construction of small cross-section tunnel lining structures.

[0004] The technical solution adopted in this invention is: a drilling device for tunnel lining structure, comprising a drill, a support rod, a first telescopic mechanism, a second telescopic mechanism, an angle plate, and an adjustable movable base. The first telescopic mechanism and the second telescopic mechanism are both connected to the movable base. The angle plate is connected to the first telescopic mechanism. The first telescopic mechanism is rotatably connected to the support rod, and the connection point corresponds to the center of the scale of the angle plate. The second telescopic mechanism is slidably connected to the support rod, and the second telescopic mechanism is rotatably connected to the support rod. The end of the support rod away from the first telescopic mechanism is connected to the drill.

[0005] Furthermore, the movable base is equipped with a level detector to detect its horizontal status.

[0006] Furthermore, the movable base includes a first base, a second base, and a third telescopic mechanism. The first base is located above the second base and is rotatably connected to it. The first base is equipped with a level detector. The second base is equipped with the third telescopic mechanism, and the third telescopic mechanism is movably connected to the first base to adjust the level of the first base.

[0007] Furthermore, the third telescopic mechanism includes a third hydraulic cylinder, a third telescopic rod, and a third connecting member. The second base is connected to the third hydraulic cylinder, the third telescopic rod is connected to the third hydraulic cylinder, and the third telescopic rod is rotatably connected to the support rod through the third connecting member, while the third connecting member is slidably connected to the support rod.

[0008] Furthermore, the angle dial has semi-circular scale markings with a scale range of 180 degrees, and the flat edges of the scale markings are vertically set.

[0009] Furthermore, the first telescopic mechanism includes a first hydraulic cylinder and a first telescopic rod. The first hydraulic cylinder is connected to the movable base, the first telescopic rod is connected to the first hydraulic cylinder, the top of the first telescopic rod is connected to an angle plate, and the first telescopic rod is rotatably connected to a support rod.

[0010] Furthermore, the second telescopic mechanism includes a second hydraulic cylinder, a second telescopic rod, and a second connecting member. The second hydraulic cylinder is connected to the movable base, the second telescopic rod is connected to the second hydraulic cylinder, the second telescopic rod is rotatably connected to the second connecting member, and the second connecting member is slidably connected to the support rod.

[0011] On the other hand, the present invention also provides a construction method for a drilling device for tunnel lining structures, which includes the following steps using the above-mentioned device:

[0012] S1. Place the movable base at the predetermined drilling position and level it;

[0013] S2. Based on the positioning and drilling angle of the first hole, adjust the extension and retraction of the first and second telescopic mechanisms until the drill bit axis of the drill bit corresponds to the first hole position, and complete the first hole through the drill bit.

[0014] S3. Based on the design angle of the next borehole in the same cross section, adjust the extension and retraction of the first and second telescopic mechanisms and refer to the angle plate to adjust the tilt angle of the support rod until the tilt angle of the support rod meets the design requirements, and then drill the hole using a drill bit.

[0015] S4. Repeat step S3 until the drilling work required for the current section is completed.

[0016] The advantages and positive effects of this invention are: by adopting the above technical solution, batch drilling can be carried out quickly and accurately in the limited space inside the tunnel; it has the advantages of simple structure, low processing cost, and improved construction efficiency and quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the borehole locations in the tunnel lining structure;

[0019] Figure 3 This is a schematic diagram of the working scenario when the movable base is being adjusted according to an embodiment of the present invention;

[0020] In the picture:

[0021] 1. Movable base; 2. First hydraulic cylinder; 3. First telescopic rod; 4. Second hydraulic cylinder; 5. Second telescopic rod; 6. Angle plate; 7. Support rod; 8. Drilling tool; 9. Second connecting piece; 10. First base; 11. Second base; 12. Third hydraulic cylinder; 13. Third telescopic rod; 14. Third connecting piece; 15. Moving wheel; 16. Handle; 17. Level detector; 18. Controller; 19. Tunnel lining structure; 20. Hole position. Detailed Implementation

[0022] The embodiments of the present invention will now be described with reference to the accompanying drawings. The described embodiments are only some embodiments of the invention, and not all embodiments.

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout.

[0024] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that terms such as "installation," "connection," and "fixing" should be interpreted broadly, and can refer to direct connection, installation, or fixing, or indirect connection, installation, or fixing. The present invention does not impose any limitations in this regard.

[0025] like Figures 1 to 3 The diagram shows an embodiment of a drilling device for tunnel lining structure according to the present invention, and an end face diagram of the required drilling location in the tunnel.

[0026] The drilling device for tunnel lining structures includes a drill bit 8, a support rod 7, a first telescopic mechanism, a second telescopic mechanism, an angle disc 6, and an adjustable movable base 1. Both the first and second telescopic mechanisms are connected to the movable base 1. The angle disc 6 is connected to the first telescopic mechanism. The first telescopic mechanism is rotatably connected to the support rod 7, and the connection point corresponds coaxially with the center of the scale on the angle disc 6. The second telescopic mechanism is slidably connected to the support rod 7 and rotatably connected to it. The end of the support rod 7 furthest from the first telescopic mechanism is connected to the drill bit 8. Through the coordinated action of the adjustable movable base 1, the double telescopic mechanisms, the angle disc 6, and the support rod 7, rapid and precise adjustment of the drilling angle is achieved, significantly reducing positioning time and manual measurement errors during batch drilling, and improving drilling efficiency and quality. It is particularly suitable for complex locations such as the arch and sidewalls of small-section tunnels.

[0027] In this embodiment, the movable base is equipped with a level detector 17 (such as a bubble level) to detect its levelness. The level detector 17 ensures that the movable base 1 is level, reducing drilling angle deviation caused by uneven ground.

[0028] In this embodiment, the movable base includes a first base 10, a second base 11, and a third telescopic mechanism. The first base 10 is located above the second base 11 and is rotatably connected to it. The first base 10 is provided with a level detector 17. The second base 11 is provided with a third telescopic mechanism, and the third telescopic mechanism is movably connected to the first base 10 to adjust the level of the first base 10.

[0029] In this embodiment, the third telescopic mechanism includes a third hydraulic cylinder 12, a third telescopic rod 13, and a third connecting member 14. The second base 11 is connected to the third hydraulic cylinder 12, the third telescopic rod 13 is connected to the third hydraulic cylinder 12, and the third telescopic rod 13 is rotatably connected to the support rod 7 through the third connecting member 14, and the third connecting member 14 is slidably connected to the support rod 7.

[0030] Preferably, the top of the third telescopic rod 13 is connected to the guide rail at the bottom of the first base 10 via a hinged slider, forming a sliding and rotating connection, so that the first base 10 can be leveled by controlling the extension and retraction of the third telescopic mechanism.

[0031] In this embodiment, the angle dial 6 has semi-circular scale markings with a scale range of 180 degrees, and the flat edges of the scale markings are vertically positioned. The scale design of the angle dial 6 facilitates reading and fine-tuning of the drilling angle, improving drilling accuracy.

[0032] In this embodiment, the first telescopic mechanism includes a first hydraulic cylinder 2 and a first telescopic rod 3. The first hydraulic cylinder 2 is connected to the first base 10 of the movable base, and the first telescopic rod 3 is connected to the first hydraulic cylinder 2. The top of the first telescopic rod 3 is connected to an angle disc 6, and the first telescopic rod 3 is rotatably connected to a support rod 7. The first telescopic mechanism, using the structure of the first hydraulic cylinder 2 and the first telescopic rod 3, provides stable telescopic power, reduces adjustment difficulty, and improves adjustment accuracy. Specifically, the top end of the first telescopic rod 3 is fixedly mounted with an angle disc 6, and this end is hinged to the support rod 7 via a pin, with the hinge point precisely aligned with the center of the angle disc.

[0033] In this embodiment, the second telescopic mechanism includes a second hydraulic cylinder 4, a second telescopic rod 5, and a second connecting member 9. The second hydraulic cylinder 4 is connected to the first base 10 of the movable base, and the second telescopic rod 5 is connected to the second hydraulic cylinder 4. The second telescopic rod 5 is rotatably connected to the second connecting member 9 via a rotating shaft, and the second connecting member 9 is slidably connected to the support rod 7. The second telescopic mechanism uses the structure of the second hydraulic cylinder 4 and the second telescopic rod 5 connected to the support rod 7 to enhance support stability. The second connecting member 9 is slidably connected to the support rod 7 to achieve smooth movement, reduce friction loss, and improve service life. Preferably, the support rod 7 is provided with a sliding groove, a sliding rod is provided in the sliding groove, and the second connecting member 9 is sleeved on the sliding rod; or in another embodiment, a slider is sleeved on the sliding rod, and the slider is fixedly connected to the second connecting member 9.

[0034] Preferably, the bottom of the second base 11 is provided with multiple movable wheels 15, and the movable wheels 15 have a braking structure for easy movement and fixation. The first base 10 or the second base 11 is provided with a handle 16. The tunnel lining structure drilling device also includes a controller 18, which can integrate and control the first hydraulic cylinder 2, the second hydraulic cylinder 4, and the third hydraulic cylinder 12; or in this embodiment, three controllers are provided respectively, which are electrically connected to the first hydraulic cylinder 2, the second hydraulic cylinder 4, and the third hydraulic cylinder 12 to control the telescopic operation. The introduction of the controller 18 enables centralized or independent electrical control of multiple hydraulic cylinders, reducing the labor intensity of operators and further improving adjustment efficiency and accuracy. The specific structure and control method of the controller 18 are existing technologies and will not be described in detail in this invention.

[0035] On the other hand, the present invention also provides a construction method for a drilling device for tunnel lining structures, comprising the following steps:

[0036] S1. Place the movable base 1 at the predetermined drilling position, observe the horizontal state of the movable base 1 through the horizontal detector 17, and when the movable base 1 is not horizontal, adjust the extension amount of the third telescopic mechanism to adjust the horizontal state of the first base 10.

[0037] S2. Based on the positioning and drilling angle of the first hole, adjust the extension and retraction of the first telescopic mechanism and the second telescopic mechanism until the drill bit axis of the driller 8 corresponds to the first hole position 20, and complete the first hole through the driller 8;

[0038] S3. After the first hole is completed, adjust the extension and retraction of the first and second telescopic mechanisms according to the design angle of the next hole on the same cross section, and adjust the tilt angle of the support rod 7 with reference to the scale markings on the angle plate 6 until the tilt angle of the support rod 7 meets the design requirements, and then drill the hole through the drill bit 8.

[0039] S4. Repeat step S3, and so on, until the drilling of the required hole positions 20 for the current section of the tunnel lining structure 19 is completed.

[0040] This invention utilizes an adjustable movable base 1 to reduce drilling angle deviations caused by uneven ground. A level detector 17 and a leveling mechanism ensure the movable base 1 is level, improving drilling accuracy. The cooperation of the first and second telescopic mechanisms allows for flexible adjustment of the support rod 7's tilt angle, reducing manual adjustment difficulty and improving efficiency. The angle disc 6 allows for precise angle control, reducing drilling errors. All components are made of lightweight materials, facilitating transportation and assembly, and adapting to small cross-sectional spaces. Hydraulic drive replaces manual adjustment, improving positioning speed and accuracy. The construction method is simple, highly operable, reduces repetitive positioning time, and lowers construction costs.

[0041] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A drilling device for tunnel lining structures, characterized in that, include: The device includes a drill, a support rod, a first telescopic mechanism, a second telescopic mechanism, an angle plate, and a levelable movable base. The first and second telescopic mechanisms are both connected to the movable base. The angle plate is connected to the first telescopic mechanism. The first telescopic mechanism is rotatably connected to the support rod, and the connection point corresponds to the center of the scale on the angle plate. The second telescopic mechanism is slidably connected to the support rod and is rotatably connected to the support rod. The end of the support rod away from the first telescopic mechanism is connected to the drill.

2. The drilling device for tunnel lining structure according to claim 1, characterized in that: The movable base is equipped with a level detector to detect its horizontal status.

3. The drilling device for tunnel lining structures according to claim 2, characterized in that: The movable base includes a first base, a second base, and a third telescopic mechanism. The first base is located above and rotatably connected to the second base. The first base is equipped with the level detector. The second base is equipped with the third telescopic mechanism, and the third telescopic mechanism is movably connected to the first base to adjust the level of the first base.

4. The drilling device for tunnel lining structures according to claim 3, characterized in that: The third telescopic mechanism includes a third hydraulic cylinder, a third telescopic rod, and a third connecting member. The second base is connected to the third hydraulic cylinder, the third telescopic rod is connected to the third hydraulic cylinder, and the third telescopic rod is rotatably connected to the support rod through the third connecting member, while the third connecting member is slidably connected to the support rod.

5. The drilling device for tunnel lining structure according to claim 1, characterized in that: The angle dial has semi-circular scale markings with a scale range of 180 degrees, and the flat edges of the scale markings are vertically arranged.

6. The drilling device for tunnel lining structures according to any one of claims 1-5, characterized in that: The first telescopic mechanism includes a first hydraulic cylinder and a first telescopic rod. The first hydraulic cylinder is connected to the movable base, and the first telescopic rod is connected to the first hydraulic cylinder. The top of the first telescopic rod is connected to the angle plate, and the first telescopic rod is rotatably connected to the support rod.

7. The drilling device for tunnel lining structures according to any one of claims 1-5, characterized in that: The second telescopic mechanism includes a second hydraulic cylinder, a second telescopic rod, and a second connecting member. The second hydraulic cylinder is connected to the movable base, the second telescopic rod is connected to the second hydraulic cylinder, the second telescopic rod is rotatably connected to the second connecting member, and the second connecting member is slidably connected to the support rod.

8. A construction method for a tunnel lining structure drilling device, utilizing the tunnel lining structure drilling device according to any one of claims 1-7, characterized in that, The construction steps include the following: S1. Place the movable base at the predetermined drilling position and level it; S2. Based on the positioning and drilling angle of the first hole, adjust the extension and retraction of the first telescopic mechanism and the second telescopic mechanism until the drill bit axis of the drill bit corresponds to the first hole position, and complete the first hole through the drill bit; S3. Based on the design angle of the next borehole in the same cross section, adjust the extension and retraction of the first telescopic mechanism and the second telescopic mechanism and refer to the angle plate to adjust the tilt angle of the support rod until the tilt angle of the support rod meets the design requirements, and then drill through the drill bit. S4. Repeat step S3 until the drilling work required for the current section is completed.

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