CN211503859U

CN211503859U - Tunnel granite rock stratum smooth blasting construction equipment

Info

Publication number: CN211503859U
Application number: CN201922360311.XU
Authority: CN
Inventors: 王震雄; 孙吕红; 王若飞; 郑焘; 郭振华; 吴发庆; 张凯强; 杨光
Original assignee: Northwest Engineering Co Ltd Of Cccc First Highway Engineering Co ltd; CCCC Tunnel Engineering Co Ltd
Current assignee: Northwest Engineering Co Ltd Of Cccc First Highway Engineering Co ltd; CCCC Tunnel Engineering Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-15
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to a tunnel granite rock stratum smooth blasting construction equipment in tunnel blasting equipment field aims at solving the problem of boring the big gun hole, and it includes the vertical reference frame with tunnel excavation section butt, be equipped with the through-hole that corresponds and supply the drill bit of drilling equipment to pass with the big gun hole position on the reference frame, be equipped with on the reference frame with through-hole intercommunication and perpendicular to reference frame place planar standard pipe, the internal diameter of standard pipe is greater than the external diameter of drill bit, standard pipe and through-hole axial length equal to drill bit length subtract the standard depth of big gun hole. The utility model discloses assurance gun eye ground that can be convenient can also improve the efficiency of drilling on a plane.

Description

Tunnel granite rock stratum smooth blasting construction equipment

Technical Field

The utility model belongs to the technical field of the technique of tunnel blasting equipment and specifically relates to a tunnel granite rock stratum smooth blasting construction equipment is related to.

Background

The tunnel is the key and key project for the construction of roads, railways and the like. With the development of railway construction and the progress of science and technology, the tunnel excavation method is rapidly developed. The common excavation methods include a drilling and blasting method, a shield method and a digging machine method. The drilling and blasting method is still the tunnel excavation method commonly used at home and abroad at present because the drilling and blasting method has strong adaptability to geological conditions and low excavation cost, and is particularly suitable for the construction of hard rock tunnels, broken rock tunnels and a large number of short tunnels.

Before blasting, the position of a blast hole is determined, before drilling the blast hole, a measurer must use red paint to draw a tunnel center and an excavation contour line on an excavation section of a tunnel by using a measuring instrument to mark the position of the blast hole, the error of the position of the blast hole is not more than +/-5 cm, peripheral holes are arranged on a designed contour line in principle and can be adjusted from the depth of the blast hole, and the eyeground is enabled to fall at a position of about 100mm outside the contour line. And drilling holes at the positions of the blastholes by using drilling equipment, ensuring that the blasthole bottoms are on the same plane by a driller, and finally charging and detonating.

The above prior art solutions have the following drawbacks: because the gun eye ground is ensured to be on the same plane. The method has the advantages that the drilling crew needs to be fixed, drilling workers are stabilized, so that the drilling technology is familiar, the rule is mastered, the drilling efficiency and accuracy are improved, the method has high requirements for stability of personnel, the tunnel excavation section is not on the same plane due to the fact that concave protrusions exist in the tunnel excavation section, and the gun eye ground is difficult to guarantee on the same plane due to the difference among different drillers.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a tunnel granite rock stratum smooth blasting construction equipment, it has the effect that conveniently lets the gun eye ground keep on same plane.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a tunnel granite stratum smooth blasting construction equipment, includes the vertical reference frame with tunnel excavation section butt, be equipped with the through-hole that corresponds with the big gun hole position and supply drilling equipment's drill bit to pass on the reference frame, be equipped with on the reference frame with through-hole intercommunication and perpendicular to reference frame place planar standard pipe, the internal diameter of standard pipe is greater than the external diameter of drill bit, the standard pipe equals drill bit length with the axial length of through-hole and subtracts the standard degree of depth of big gun hole.

By adopting the technical scheme, after the reference frame is abutted to the tunnel excavation section, the drill bit of the drilling equipment penetrates through the standard pipe and the through hole, the drill bit is abutted to the tunnel excavation section, the drilling equipment is started to drill, until the installation seat for installing the drill bit on the drilling equipment is abutted to the standard pipe, the drilling equipment is stopped at the moment, and as the axial length of the standard pipe and the axial length of the through hole are equal to the length of the drill bit minus the standard depth of the blasthole, after the drill bit completely enters the standard pipe, the distance between the end of the drill bit and the plane where the reference frame is located is equal to the depth of the blasthole, the distances between the formed blasthole ground and the reference frame are equal, and the reference frame is arranged on the same plane, so the eyeground blasthole is also arranged on. Therefore, the gun eye ground can be conveniently ensured to be on the same plane, and the drilling efficiency can be improved.

The utility model discloses further set up to: the lower part of the reference frame is provided with a supporting seat which is abutted to the ground, and one side of the supporting seat, which deviates from the reference frame, is provided with a roller.

Through adopting above-mentioned technical scheme, the setting of supporting seat becomes the stability of benchmark frame bottom, makes the benchmark frame can be more stable with tunnel excavation end face butt. Meanwhile, the arrangement of the roller wheels can facilitate the movement of the supporting seat and the reference frame.

The utility model discloses further set up to: one side that the benchmark frame was kept away from to the supporting seat is equipped with and passes the supporting seat and get into the underground spud pile, be equipped with the trompil that supplies the spud pile to pass on the supporting seat, the one end that the spud pile deviates from ground is equipped with the stopper that is greater than the trompil.

Through adopting above-mentioned technical scheme, remove the supporting seat and make behind benchmark frame and the tunnel excavation terminal surface butt, squeeze into the underground until stopper and supporting seat butt with the spud pile, the spud pile passes the supporting seat and is connected with ground, the stable position of having fixed the supporting seat, the stopper also forms decurrent pressure to one side that the supporting seat deviates from the benchmark frame simultaneously, the gravity that is used for balancing the benchmark frame reduces the benchmark frame and drives the condition that the supporting seat takes place to turn on one side of the benchmark frame, further stabilizes the position of benchmark frame. The operation of a driller is facilitated, and the drilling depth is stabilized.

The utility model discloses further set up to: and the supporting seat is provided with an inclined supporting rod connected with one side of the reference frame, which deviates from the tunnel excavation section.

Through adopting above-mentioned technical scheme, the angle of reference frame and supporting seat is stabilized in the setting up of diagonal brace, reduces the slope deformation of reference frame, makes the reference frame keep vertical can be stable with tunnel excavation section butt, reduces the error of the degree of depth between the different drilling.

The utility model discloses further set up to: the inclined support rod is provided with a T-shaped sliding rod which is perpendicular to the plane of the reference frame and connected with the reference frame, the supporting seat is provided with a T-shaped sliding groove for the T-shaped sliding rod to slide along the axial direction, and the T-shaped sliding rod is in threaded connection with a first bolt which penetrates through the T-shaped sliding rod and is abutted to the bottom wall of the T-shaped sliding groove.

By adopting the technical scheme, the T-shaped sliding rod slides along the T-shaped sliding groove, the T-shaped sliding rod drives the reference frame to move to the middle of the supporting seat, then the first bolt is rotated to enable the first bolt to be abutted against the bottom wall of the T-shaped sliding groove, the positions of the T-shaped sliding rod and the reference frame are fixed, the reference frame is stabilized at the center of the supporting seat, and the situation that the side turning occurs due to unstable center in the process of moving the supporting seat is reduced.

The utility model discloses further set up to: the benchmark frame includes two montants that are parallel to each other and a plurality of horizontal poles that are parallel to each other between two montants, the horizontal pole is towards tunnel excavation sectional one side protrusion montant, be equipped with a plurality of fixed blocks that slide along horizontal pole axial direction on the horizontal pole, the through-hole sets up on the fixed block, be equipped with locking fixed block position retaining member on the fixed block.

Through adopting above-mentioned technical scheme, the fixed block can slide along horizontal pole axial direction, and the slip of fixed block just also can drive through-hole and standard pipe and remove, when drilling the big gun hole on the same height, can make the through-hole align with the big gun hole position that needs drill through removing the fixed block, can alleviate the weight of benchmark frame, practices thrift manufacturing cost.

The utility model discloses further set up to: the sliding sleeves are arranged at the two ends of the cross rod and sleeved on the periphery of the vertical rod and slide along the axial direction of the vertical rod, and second bolts penetrating through the sliding sleeves and tightly abutting against the vertical rod are connected to the sliding sleeves in a threaded mode.

Through adopting above-mentioned technical scheme, the big gun hole position on the tunnel excavation section of difference is different, and the setting up of sliding sleeve makes the horizontal pole can follow the montant and slide on vertical direction, can adjust the height of through-hole, can drill the big gun hole of different positions, enlarges the application scope of benchmark frame. Meanwhile, the number of the cross rods can be reduced, the weight of the reference frame is reduced, and the manufacturing cost is saved.

The utility model discloses further set up to: and one end of the standard pipe, which faces the through hole, is provided with a lug, and the lug is provided with a third bolt connected with the reference frame.

Through adopting above-mentioned technical scheme, the standard pipe passes through the lug and is connected with the benchmark frame, realizes the removable of standard pipe, is suitable for the blasthole drilling of the different degree of depth, enlarges the application scope of benchmark frame.

To sum up, the utility model discloses a beneficial technological effect does:

1. the reference frame reduces the requirements on driller technology, and can more simply ensure that the cannon eye ground is on one plane;

2. the support base improves the stability of the reference frame;

3. the fixed block that can slide on the horizontal pole, horizontal pole can slide along the montant, detachable standard pipe, have enlarged the application scope of benchmark frame.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure of the through hole of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

Reference numerals: 1. a reference frame; 11. a cross bar; 12. a vertical rod; 13. a sliding sleeve; 14. a second bolt; 2. a fixed block; 21. a through hole; 22. a T-shaped slider; 23. a T-shaped groove; 24. a fourth bolt; 25. a locking member; 3. a standard pipe; 31. a lug; 32. a third bolt; 4. a supporting seat; 41. a roller; 42. fixing the pile; 43. a limiting block; 44. opening a hole; 5. a diagonal brace; 51. a U-shaped frame; 52. a T-shaped slide bar; 53. a T-shaped chute; 54. a first bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, for the utility model discloses a tunnel granite rock stratum smooth blasting construction equipment, include with the vertical reference frame 1 of tunnel excavation section butt, be equipped with the through-hole 21 that corresponds and supply drilling equipment's drill bit to pass with the big gun hole position on the reference frame 1, be equipped with on the reference frame 1 with through-hole 21 intercommunication and perpendicular to reference frame 1 place planar standard pipe 3, the internal diameter of standard pipe 3 is greater than the external diameter of drill bit, standard pipe 3 and the axial length of through-hole 21 equals drill bit length and subtracts the standard depth of big gun hole. The distance between the formed gun eye ground and the reference frame 1 is the same, and the reference frame 1 is on the same plane, so the gun eye ground is also on the same plane, and the dependence on the driller technology is reduced.

As shown in fig. 1 and 2, in order to stabilize the position of the reference frame 1 during drilling, a support base 4 abutting against the ground is provided at the lower portion of the reference frame 1, and a roller 41 is provided at a side of the support base 4 away from the reference frame 1. The rollers 41 are arranged to facilitate movement of the support base 4. One side that reference frame 1 was kept away from to supporting seat 4 is equipped with and passes supporting seat 4 and get into underground spud pile 42, is equipped with the trompil 44 that supplies spud pile 42 to pass on the supporting seat 4, and the one end that spud pile 42 deviates from ground is equipped with the stopper 43 that is greater than trompil 44, guarantees that stopper 43 can not pass trompil 44, can support tightly with supporting seat 4. The spud pile 42 is driven into the ground until the limiting block 43 abuts against the supporting seat 4, and the spud pile 42 penetrates through the supporting seat 4 to be connected with the ground, so that the position of the supporting seat 4 is stably fixed. And the supporting seat 4 is provided with an inclined stay bar 5 connected with one side of the reference frame 1 departing from the tunnel excavation section.

As shown in fig. 1, in order to further reduce the occurrence of side turning during the process of moving the support seat 4, a T-shaped slide bar 52 perpendicular to the plane of the reference frame 1 and connected to the reference frame 1 is disposed on the diagonal brace 5, a T-shaped slide slot 53 for the T-shaped slide bar 52 to slide along the axial direction is disposed on the support seat 4, and a first bolt 54 passing through the T-shaped slide bar 52 and abutting against the bottom wall of the T-shaped slide slot 53 is threadedly connected to the T-shaped slide bar 52. In this embodiment, the diagonal brace 5 is welded to the reference frame 1 and the T-shaped slide bar 52.

As shown in fig. 1 and 3, in order to lighten the weight of the reference frame 1, the reference frame 1 comprises two vertical rods 12 parallel to each other and a plurality of cross rods 11 parallel to each other between the two vertical rods 12, the cross rods 11 protrude the vertical rods 12 towards one side of the tunnel excavation section, a plurality of fixed blocks 2 sliding along the axial direction of the cross rods 11 are arranged on the cross rods 11, the through holes 21 are arranged on the fixed blocks 2, and locking fixed block 2 position locking pieces 25 are arranged on the fixed blocks 2. In the embodiment, a U-shaped frame 51 welded with an inclined strut 5 is welded on a vertical rod 12, the vertical rod 12 is welded with a T-shaped sliding rod 52, a locking part 25 comprises a T-shaped sliding block 22 on a fixed block 2, a T-shaped groove 23 for the T-shaped sliding block 22 to slide is arranged on a cross rod 11, and a fourth bolt 24 tightly abutted against the bottom of the T-shaped groove 23 is connected to the T-shaped sliding block 22 in a threaded manner; fixed block 2 flushes towards tunnel excavation sectional one side and horizontal pole 11 towards tunnel excavation sectional one side, makes fixed block 2 also can with normal section surface butt, guarantees that the length of the drill bit that passes through-hole 21 corresponds with the length of horizontal pole 11 side apart from the gun eye ground.

As shown in fig. 1 and 3, two ends of the cross bar 11 are provided with sliding sleeves 13 which are sleeved on the periphery of the vertical bars 12 and slide along the axial direction of the vertical bars 12, in this embodiment, the sliding sleeves 13 are welded at two ends of the cross bar 11. The sliding sleeve 13 is screwed with a second bolt 14 which passes through the sliding sleeve 13 and is tightly abutted against the vertical rod 12. The blasthole position on the tunnel excavation section of difference is different, and the setting up of sliding sleeve 13 makes horizontal pole 11 can follow montant 12 and slide in vertical direction, can adjust the height of through-hole 21, can drill the blasthole of different positions, enlarges the application scope of benchmark frame 1. One end of the standard pipe 3 facing the through hole 21 is provided with a lug 31, in the embodiment, the lug 31 and the standard pipe 3 are integrally arranged, and the lug 31 is provided with a third bolt 32 connected with the reference frame 1. The standard pipe 3 can be replaced, and the method is suitable for drilling holes in blast holes with different depths.

The implementation principle of the embodiment is as follows: gripping the reference frame 1 to slide along the T-shaped sliding groove 53, sliding the reference frame 1 to the middle of the supporting seat 4, rotating the first bolt 54 to fix the position of the reference frame 1, enabling the supporting seat 4 to move towards the tunnel excavation section, abutting the supporting seat 4 with the tunnel excavation section, smashing the fixing pile 42 underground until the limiting block 43 abuts against the supporting seat 4, and fixing the position of the supporting seat 4; rotating a first bolt 54 to loosen a T-shaped sliding rod 52, moving the reference frame 1 along a T-shaped sliding groove 53 to enable the reference frame 1 to be abutted against the tunnel excavation section, moving the fixed block 2 to the position of a blasthole to enable the through hole 21 to be aligned with the blasthole, locking the fixed block 2, enabling a drill bit of drilling equipment to penetrate through the standard pipe 3 and the through hole 21 to enable the drill bit to be abutted against the tunnel excavation section, starting the drilling equipment to start drilling until a mounting seat for mounting the drill bit on the drilling equipment is abutted against the standard pipe 3, stopping the drilling equipment at the moment, wherein after the drill bit completely enters the standard pipe 3, the distance between the end of the drill bit and the plane of the reference frame 1 is equal to the depth of the blasthole due to the fact that the axial length of the standard pipe 3 and the axial length of the through hole 21 are equal to the subtraction of the standard depth of the blasthole, the distance between the formed blasthole bottom and, the dependence on the driller technology is reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a tunnel granite rock stratum smooth blasting construction equipment which characterized in that: include vertical benchmark frame (1) with tunnel excavation section butt, be equipped with on benchmark frame (1) and correspond and supply through-hole (21) that drilling equipment's drill bit passed with the porthole position, be equipped with on benchmark frame (1) and communicate and the planar standard pipe (3) in perpendicular to benchmark frame (1) place with through-hole (21), the internal diameter of standard pipe (3) is greater than the external diameter of drill bit, the standard pipe (3) and through-hole (21) axial length equals drill bit length and subtracts the standard degree of depth of porthole.

2. The smooth blasting construction device for the tunnel granite rock stratum of claim 1, which is characterized in that: the lower part of the reference frame (1) is provided with a supporting seat (4) abutted to the ground, and one side, deviating from the reference frame (1), of the supporting seat (4) is provided with a roller (41).

3. The smooth blasting construction device for the tunnel granite rock stratum of claim 2, wherein: one side that benchmark frame (1) was kept away from in supporting seat (4) is equipped with and passes supporting seat (4) and get into underground spud pile (42), be equipped with trompil (44) that supply spud pile (42) to pass on supporting seat (4), the one end that spud pile (42) deviates from ground is equipped with stopper (43) that are greater than trompil (44).

4. The smooth blasting construction device for tunnel granite strata according to claim 2 or 3, characterized in that: and the supporting seat (4) is provided with an inclined stay bar (5) which is connected with one side of the reference frame (1) departing from the tunnel excavation section.

5. The smooth blasting construction device for tunnel granite terranes according to claim 4, characterized in that: the inclined strut (5) is provided with a T-shaped sliding rod (52) which is perpendicular to the plane of the reference frame (1) and connected with the reference frame (1), the supporting seat (4) is provided with a T-shaped sliding groove (53) for the T-shaped sliding rod (52) to slide along the axial direction, and the T-shaped sliding rod (52) is in threaded connection with a first bolt (54) which penetrates through the T-shaped sliding rod (52) and is abutted to the bottom wall of the T-shaped sliding groove (53).

6. The smooth blasting construction device for the tunnel granite rock stratum of claim 1, which is characterized in that: benchmark frame (1) includes a plurality of horizontal poles (11) that are parallel to each other between two montants (12) that are parallel to each other and two montants (12), horizontal pole (11) are towards tunnel excavation sectional one side protrusion montant (12), be equipped with a plurality of fixed blocks (2) that slide along horizontal pole (11) axial direction on horizontal pole (11), through-hole (21) set up on fixed block (2), be equipped with locking fixed block (2) position retaining member (25) on fixed block (2).

7. The smooth blasting construction device for tunnel granite terranes according to claim 6, characterized in that: the two ends of the cross rod (11) are provided with sliding sleeves (13) which are sleeved on the periphery of the vertical rod (12) and slide along the axial direction of the vertical rod (12), and the sliding sleeves (13) are in threaded connection with second bolts (14) which penetrate through the sliding sleeves (13) and are tightly abutted to the vertical rod (12).

8. The smooth blasting construction device for the tunnel granite rock stratum of claim 1, which is characterized in that: one end, facing the through hole (21), of the standard pipe (3) is provided with a lug (31), and a third bolt (32) connected with the reference frame (1) is arranged on the lug (31).