Tunnel pipe shed drilling positioning and guiding auxiliary device and using method

Abstract

The tunnel pipe shed drilling, positioning and guiding auxiliary device comprises a cover arch used for supporting a pipe shed, the cover arch adopts three steel arch frames as a framework, the second steel arch frame located in the middle is connected with a clamp in a sleeved mode, the two ends of the clamp are connected with sleeves A respectively, telescopic rods A are inserted into the sleeves A, and the telescopic rods A are inserted into the telescopic rods A; the other ends of the front telescopic rod A and the rear telescopic rod A are respectively connected with a guide pipe A and a guide pipe B; wherein the clamp is composed of a clamping groove C, a clamping groove D, rubber, an abutting plate, a threaded sleeve, a screw rod, a connecting support, a first bevel gear, a second bevel gear, a connecting sleeve, a handle and a steel plate, when the drilling device is used, the drilling angle is adjusted through a telescopic rod B, a drill rod penetrates through a guide pipe A and a guide pipe B to conduct drilling, and then a hole with the angle meeting the design requirement can be drilled; the whole device is high in applicability, universality, accuracy and safety and capable of meeting the requirement for arch sleeving of steel arches with different intervals.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel pipe-roof construction, and in particular to a tunnel pipe-roof drilling positioning and guiding auxiliary device and a use method thereof. Background Art

[0002] In tunnel construction, pre-support measures are often used for surrounding rocks with poor self-stabilization ability to achieve the purpose of strengthening the surrounding rocks and stabilizing the working surface. Advanced pipe-roof pre-support is a frequently used pre-support measure. Pipe-roof generally refers to a shed protection structure formed by circumferentially arranging at a certain interval along part or all of the underground engineering section. Its purpose is to provide a temporary support method to enhance the bearing capacity of the stratum in advance for safe excavation under special geological conditions. It is mainly used in weak, gravel strata and soft rocks, rock piles, and broken belts. At present, in the process of pipe-roof construction, because the construction height of the pipe-roof is high, an excavator is generally used to apply pressure on the end of the pipe segment, but due to the long use time of the excavator, the utilization rate is low. In addition, because the length of the pipe-roof inserted into the borehole is long and there is an upward elevation angle, when the excavator applies force at the end, not only is it difficult for the pressure action line to coincide with the axis of the channel, but it is also difficult to control the degree of deflection of the pipe-roof top, which can easily cause the pipe segment to bend and deform.

[0003] At present, in the field of tunnel pipe-roof drilling positioning and guidance construction, the positioning and guidance of the pipe-roof drilling is generally carried out by installing guide pipes on the steel arch frame of the casing arch. This method requires a large number of steel pipes and manual control of the guide pipe angle, which can easily cause errors and cause the pipe-roof installation angle to deviate from the design, failing to achieve the design effect and the effect of advanced support. Summary of the invention

[0004] The purpose of the present invention is to provide a tunnel pipe-roof drilling positioning guide auxiliary device and a method of use, which is not only applicable to the sleeve arches of steel arch frames with different spacings; it is also applicable to the sleeve arches with different types of steel arch frames as skeletons. At the same time, the erection angle can be adjusted at any time to solve the shortcomings of the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A tunnel pipe shed drilling positioning and guiding auxiliary device comprises a sleeve arch for supporting the pipe shed, wherein the sleeve arch adopts three steel arch frames as a skeleton, a clamp is sleeved on the second steel arch frame in the middle, sleeves A are connected at both ends of the clamp, telescopic rods A are inserted into the sleeves A, and L-shaped quick-tightening wrench bolts are adopted for relative fixation, and the other ends of the front and rear telescopic rods A are respectively connected to the conduit A and the conduit B; the clamp consists of a slot C, a slot D, rubber, a butt plate, a threaded sleeve, a screw, a connecting support, a first bevel gear, a second bevel gear, a connecting sleeve, a handle and a steel plate, the connecting supports are installed above and below the steel plate, screws are installed on both sides of the connecting support, a threaded sleeve, a butt plate and rubber are installed on one end of the screw, a first bevel gear is installed on the other end of the screw, a second bevel gear is installed between the upper and lower first bevel gears, a connecting sleeve and a handle are installed on the second bevel gear, and the upper and lower connecting supports are respectively connected to the slot C and the slot D.

[0007] Furthermore, a bearing is provided on the connecting support, and the screw is fixedly connected to the inner ring of the bearing, so that the screw can rotate while being fixed.

[0008] Furthermore, the guiding function of the conduit A is achieved by the telescopic rod B, the sleeve B, the slot A and the L-shaped quick-tightening wrench bolt, wherein the sleeve B and the telescopic rod B with a scale are fixed with an L-shaped quick-tightening wrench bolt, and the guiding angle is adjusted by adjusting the length of the telescopic rod B to meet the requirements of different installation angles. At the same time, by adjusting the length of the telescopic rod A, the slot A is stuck on the outer flange plate of the third steel arch frame and fixed with an L-shaped quick-tightening wrench bolt.

[0009] Furthermore, the conduit B is clamped in the slot B on the inner flange plate of the first steel arch frame by adjusting the length of the telescopic rod A, and is fixed by an L-shaped quick-tightening wrench bolt.

[0010] The present invention provides another technical solution: a method for using a tunnel pipe-roof drilling positioning and guiding auxiliary device, comprising the following steps:

[0011] S1: Before drilling the pipe shed, put the clamp on the second steel arch frame, clamp the upper flange plate of the third steel arch frame with the clamping groove C, and clamp the lower outer flange plate of the third steel arch frame with the clamping groove D;

[0012] S2: Turn the handle to lift the abutment plate and rubber up and down until the clamp is firmly fixed on the steel arch frame;

[0013] S3: Adjust the length of the telescopic rod A so that the clamping slot A of the conduit A and the clamping slot B of the conduit B clamp the upper outer flange plate of the third steel arch frame and the upper inner flange plate of the first steel arch frame respectively, and fix them with L-shaped quick-tightening spanner bolts;

[0014] S4: Adjust the setting angle by telescopic rod B;

[0015] S5: The drill rod is passed through the guide tube A and the guide tube B to drill a hole to form a hole with an angle that meets the design requirements;

[0016] S6: After drilling, pull out the drill rod, loosen the handle, and loosen the L-shaped quick-tightening wrench bolts at slot A, slot B and casing A to remove the entire device from the steel arch frame and drill the next hole.

[0017] Furthermore, the scale value of the telescopic rod B is L*tanα, wherein L is the distance between two steel arch frames, and α is the angle required by the design.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The tunnel pipe-roof drilling positioning and guiding auxiliary device and the use method of the present invention have strong applicability and versatility, high accuracy and safety, and can meet the needs of arches with steel arch frames of different spacings; they are also suitable for arches with steel arch frames of different models as skeletons, and the setting angle can be adjusted at any time to meet different design requirements; the use of a segmented guide pipe effectively reduces the friction between the guide pipe and the drill rod, which is conducive to speeding up the construction progress; in summary, the versatility, adaptability, and qualified rate of pipe-roof drilling are improved, which is conducive to the support of the cave entrance section, avoiding the risk of collapse of the shallow buried section of the cave entrance, and at the same time providing construction accuracy and efficiency, avoiding rework, saving labor costs, and green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the tunnel pipe shed drilling positioning and guiding auxiliary device of the present invention;

[0021] Figure 2 It is a front view of the clamp of the present invention;

[0022] Figure 3 is a side view of the clamp of the present invention;

[0023] Figure 4 It is a front view of the catheter A of the present invention;

[0024] Figure 5 It is a side view of the catheter A of the present invention;

[0025] Figure 6 It is a front view of the catheter B of the present invention;

[0026] Figure 7 It is a side view of the catheter B of the present invention.

[0027] In the figure: 1. clamp; 2. sleeve A; 3. telescopic rod A; 4. L-shaped quick-tightening spanner bolt; 5. guide tube A; 6. guide tube B; 7. slot C; 8. slot D; 9. rubber; 10. abutment plate; 11. threaded sleeve; 12. screw; 13. connecting support; 14. first bevel gear; 15. second bevel gear; 16. connecting sleeve; 17. handle; 18. steel plate; 19. telescopic rod B; 20. sleeve B; 21. slot A; 22. slot B. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-7 In an embodiment of the present invention, a tunnel pipe shed drilling positioning and guiding auxiliary device is provided, and a clamp 1, a sleeve A2, a telescopic rod A3, an L-shaped quick tightening wrench bolt 4, a guide tube A5, a guide tube B6, a slot C7, a slot D8, a rubber 9, a stop plate 10, a threaded sleeve 11, a screw 12, a connecting support 13, a first bevel gear 14, a second bevel gear 15, a connecting sleeve 16, a handle 17 and a steel plate 18 are selected as main materials. The whole device includes a sleeve arch for supporting the pipe shed. The sleeve arch uses three steel arch frames as a skeleton. The second steel arch frame in the middle is sleeved with a clamp 1. The two ends of the clamp 1 are connected to a sleeve A2. The sleeve A2 is inserted into a telescopic rod A3 and is relatively fixed with an L-shaped quick-tightening wrench bolt 4. The other ends of the front and rear telescopic rods A3 are respectively connected to a conduit A5 and a conduit B6; the clamp 1 is composed of a slot C7, a slot D8, a rubber 9, a plate 10, a threaded sleeve 11, a screw 12, a connecting support 13, a first bevel gear 14, a second bevel gear 15, a connecting sleeve 16, a handle 17 and a steel plate 18, the steel plate 18 is installed with a connecting support 13 at the top and bottom, a bearing is provided on the connecting support 13, the screw 12 is fixedly connected to the inner ring of the bearing, so that the screw 12 can rotate while being fixed, the screws 12 are installed on both sides of the connecting support 13, a threaded sleeve 11, abutment plate 10 and rubber 9 are installed at one end of the screw 12, a first bevel gear 14 is installed at the other end of the screw 12, a second bevel gear 15 is installed between the upper and lower first bevel gears 14, a connecting sleeve 16 and a handle 17 are installed on the second bevel gear 15, and the upper and lower connecting supports 13 are respectively connected to the slot C7 and the slot D8.

[0030] In the above embodiment, the guiding function of the conduit A5 is realized by the telescopic rod B19, the sleeve B20, the slot A21 and the L-shaped quick-tightening wrench bolt 4, wherein the sleeve B20 and the telescopic rod B19 with a scale are fixed with the L-shaped quick-tightening wrench bolt 4, and the guiding angle is adjusted by adjusting the length of the telescopic rod B19 to meet the requirements of different installation angles. At the same time, by adjusting the length of the telescopic rod A3, the slot A21 is stuck on the outer flange plate of the third steel arch frame and fixed by the L-shaped quick-tightening wrench bolt 4.

[0031] Among them, the conduit B6 is clamped in the slot B22 on the inner flange plate of the first steel arch frame by adjusting the length of the telescopic rod A3, and is fixed by an L-shaped quick-tightening wrench bolt 4.

[0032] In order to further better explain the above embodiment, the present invention also provides a method for using a tunnel pipe-roof drilling positioning and guiding auxiliary device, comprising the following steps:

[0033] S1: Before drilling the pipe shed, put the clamp 1 on the second steel arch frame, clamp the upper flange plate of the third steel arch frame with the clamping groove C7, and clamp the lower outer flange plate of the third steel arch frame with the clamping groove D8;

[0034] S2: Turn the handle 17 to lift the support plate 10 and the rubber 9 up and down until the clamp 1 is firmly fixed on the steel arch frame;

[0035] S3: Adjust the length of the telescopic rod A3 so that the clamping groove A21 of the conduit A5 and the clamping groove B22 of the conduit B6 clamp the upper outer flange plate of the third steel arch frame and the upper inner flange plate of the first steel arch frame respectively, and fix them by L-shaped quick-tightening spanner bolts 4;

[0036] S4: Adjust the installation angle by using the telescopic rod B19. The scale value of the telescopic rod B19 is L*tanα, where L is the distance between the two steel arch frames and α is the installation angle required by the design;

[0037] S5: The drill rod is passed through the guide tube A5 and the guide tube B6 to drill a hole to form a hole with an angle that meets the design requirements;

[0038] S6: After the drilling is completed, the drill rod is pulled out, the handle 17 is loosened, and the L-shaped quick-tightening wrench bolts 4 at the slots A21, B22 and the casing A2 are loosened at the same time to remove the entire device from the steel arch frame and drill the next hole.

[0039] The present invention is applied in actual construction. It is proved that the tunnel pipe-roof drilling positioning and guiding auxiliary device of the present invention has strong applicability and versatility, high accuracy and safety in the positioning and guiding construction when drilling holes in the tunnel pipe-roof. It can meet the needs of arches with different spacings of steel arch frames; it is also suitable for arches with different types of steel arch frames as skeletons, and the setting angle can be adjusted at any time to meet different design requirements; the segmented guide pipe is adopted to effectively reduce the frictional resistance between the guide pipe and the drill rod, which is conducive to speeding up the construction progress; in summary, the versatility, adaptability and qualified rate of pipe-roof drilling are improved, which is conducive to the support of the cave entrance section and avoids the risk of collapse of the shallow buried section of the cave entrance. At the same time, it provides construction accuracy and efficiency, avoids rework, saves labor costs, and realizes green construction.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tunnel pipe shed drilling positioning and guiding auxiliary device, comprising a sleeve arch for supporting the pipe shed, the sleeve arch adopts three steel arch frames as the skeleton, characterized in that: A clamp (1) is sleeved on the second steel arch frame located in the middle, and sleeves A (2) are connected to both ends of the clamp (1). A telescopic rod A (3) is inserted into the sleeve A (2) and relatively fixed by an L-shaped quick-tightening wrench bolt (4). The other ends of the front and rear telescopic rods A (3) are respectively connected to a conduit A (5) and a conduit B (6). The clamp (1) is composed of a slot C (7), a slot D (8), a rubber (9), a stop plate (10), a threaded sleeve (11), a screw (12), a connecting support (13), a first bevel gear (14), a second bevel gear (15), and a connecting sleeve (16). , a handle (17) and a steel plate (18), wherein the steel plate (18) is provided with a connecting support (13) at the top and bottom, a screw (12) is provided on both sides of the connecting support (13), a threaded sleeve (11), a stop plate (10) and a rubber (9) are provided at one end of the screw (12), a first bevel gear (14) is provided at the other end of the screw (12), a second bevel gear (15) is provided between the upper and lower first bevel gears (14), a connecting sleeve (16) and a handle (17) are provided on the second bevel gear (15), and the upper and lower connecting supports (13) are respectively connected to a card slot C (7) and a card slot D (8).

2. A tunnel pipe-roof drilling positioning and guiding auxiliary device as claimed in claim 1, characterized in that: A bearing is provided on the connecting support (13), and the screw rod (12) is fixedly connected to the inner ring of the bearing, so that the screw rod (12) can rotate while being fixed.

3. A tunnel pipe-roof drilling positioning and guiding auxiliary device as claimed in claim 1, characterized in that: The guiding function of the conduit A (5) is achieved by the telescopic rod B (19), the sleeve B (20), the slot A (21) and the L-shaped quick-tightening spanner bolt (4), wherein the sleeve B (20) and the telescopic rod B (19) with a scale are fixed by the L-shaped quick-tightening spanner bolt (4), and the guiding angle is adjusted by adjusting the length of the telescopic rod B (19) to meet the requirements of different installation angles. At the same time, by adjusting the length of the telescopic rod A (3), the slot A (21) is clamped on the outer flange plate of the third steel arch frame and fixed by the L-shaped quick-tightening spanner bolt (4).

4. A tunnel pipe-roof drilling positioning and guiding auxiliary device as claimed in claim 1, characterized in that: The guide tube B (6) is clamped in the inner flange plate of the first steel arch frame by adjusting the length of the telescopic rod A (3), and is fixed by an L-shaped quick-tightening spanner bolt (4).

5. A method for using the tunnel pipe-roof drilling positioning and guiding auxiliary device according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1: Before drilling the pipe rack, put the clamp (1) on the second steel arch frame, clamp the upper flange plate of the third steel arch frame with the clamping groove C (7), and clamp the lower outer flange plate of the third steel arch frame with the clamping groove D (8); S2: Turn the handle (17) to lift the support plate (10) and the rubber (9) up and down until the clamp (1) is firmly fixed on the steel arch frame; S3: Adjust the length of the telescopic rod A (3) so that the clamping groove A (21) of the conduit A (5) and the clamping groove B (22) of the conduit B (6) respectively clamp the upper outer flange plate of the third steel arch frame and the upper inner flange plate of the first steel arch frame, and fix them by using the L-shaped quick-tightening spanner bolt (4); S4: adjusting the setting angle by using the telescopic rod B (19); S5: The drill rod is passed through the guide tube A (5) and the guide tube B (6) to drill a hole to form a hole with an angle that meets the design requirements; S6: After the drilling is completed, the drill rod is pulled out, the handle (17) is loosened, and the L-shaped quick-tightening wrench bolts (4) at the slot A (21), the slot B (22) and the casing A (2) are loosened at the same time, and the entire device can be removed from the steel arch frame to drill the next hole.

6. The method for using the tunnel pipe-roof drilling positioning and guiding auxiliary device according to claim 5, characterized in that: The scale value of the telescopic rod B (19) is L*tanα, where L is the distance between the two steel arch frames and α is the angle required by the design.

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