Blasting drilling positioning control device

Abstract

The invention relates to the technical field of tunnel engineering, and discloses a blasting drilling positioning control device which comprises a semicircular angle dial; the main rod is arranged on the straight edge of the angle dial and extends along the 0-degree line of the angle dial. The end part of the positioning rod is hinged to the central point of the angle dial; the positioning ring is arranged on the positioning rod; the fastener is arranged at the end part of the main rod; the main rod and the positioning rod are telescopic rods, and length scale marks starting from the center point of the angle dial are arranged on the main rod and the positioning rod; an angle fixing piece is arranged between the main rod and the positioning rod, the angle fixing piece is a telescopic rod, and the two ends of the angle fixing piece are hinged to rod bodies of the main rod and the positioning rod respectively; the device can perform auxiliary positioning on the angle of the drill rod in the drilling process, ensure that the angle and depth of the drill hole meet the requirements, ensure that the blasting effect meets the design requirements, reduce the material overconsumption on site, and ensure that the project progress can be advanced as required.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and in particular to a blasting drilling positioning control device. Background Art

[0002] During the tunnel excavation process, drilling and blasting operations are one of the commonly used methods. During the blasting drilling operation, it is first necessary to drill blasting positioning holes on the tunnel face of blasting construction, and then place explosives in the blasting positioning holes. The angle between the blasting positioning holes and the tunnel face has a great impact on the subsequent blasting range and quality. In order to ensure the success and safety of the blasting operation, the position angle of the drill hole needs to be precisely controlled.

[0003] Traditional construction methods rely entirely on the driller's experience to adjust the drill rod angle due to the lack of measuring tools. The drill rod angle error is large, and the blasting effect is affected by many human factors. The operator's skill level and work attitude will directly affect the blasting effect. After blasting, serious over-excavation or large-scale under-excavation are often encountered. Traditional drilling methods cause excessive consumption of on-site materials, and the under-excavated areas require multiple blastings to meet the design requirements, resulting in slow construction progress. Summary of the Invention

[0004] The present invention proposes a blasting drilling positioning control device to address the deficiencies in the above-mentioned prior art. The blasting drilling positioning control device can assist in positioning the drill rod angle during the drilling process, ensuring that the angle and depth of the drill hole meet the requirements, ensuring that the blasting effect meets the design requirements, reducing material overconsumption on site, and ensuring that the project progress can be carried out as scheduled.

[0005] The technical solution of the present invention is: a blasting drilling positioning control device, comprising: an angle dial in the form of a semicircle; The fixing portion includes a main rod and a fastener, wherein the main rod is arranged at the straight edge of the angle scale and extends along the 0-degree line of the angle scale. The fastener is arranged at the end of the main rod and is used to fix the main rod to the arch frame. The positioning part includes a positioning rod and a positioning ring. The end of the positioning rod is hinged at the center point of the angle scale. The positioning rod is used to indicate the drilling angle of the blasting hole. The positioning ring is set on the positioning rod and is used for the drill rod to pass through.

[0006] In at least one embodiment of the present invention, the main rod and the positioning rod are both telescopic rods, and the main rod and the positioning rod both include a rod body and a movable tube that are mutually socketed, and the main rod and the positioning rod are both provided with a length scale line starting from the center point of the angle scale.

[0007] In at least one embodiment of the present invention, an angle fixing member is provided between the main rod and the positioning rod, and the angle fixing member is a telescopic rod. The two ends of the angle fixing member are respectively hinged to the rod body of the main rod and the positioning rod, and a locking part is provided on the tube body of the angle fixing member, and the locking part is used to lock the length of the angle fixing member.

[0008] In at least one embodiment of the present invention, a laser auxiliary locator is provided on the positioning rod. The laser auxiliary locator is a bidirectional positioning laser. The laser auxiliary locator can assist in correcting the drilling angle of the drill rod. A level bubble is provided on the main rod. The level bubble can be used to adjust the main rod so that the main rod always remains in a horizontal state.

[0009] In at least one embodiment of the present invention, a plurality of positioning rings are provided, and the plurality of positioning rings are respectively arranged on the rod body and the movable tube of the positioning rod.

[0010] In at least one embodiment of the present invention, the positioning ring is detachably connected to the positioning rod, and the positioning ring is configured in multiple groups, and the inner diameters of the multiple groups of positioning rings are different.

[0011] In at least one embodiment of the present invention, locking members are provided at the telescopic locations of the main rod and the positioning rod, and the locking members are used to lock the telescopic lengths of the main rod and the positioning rod.

[0012] In at least one embodiment of the present invention, the angle scale, main rod and positioning rod are all made of steel, and the main rod and positioning rod are square steel.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with an angle dial for displaying angles, a main rod for fixing the entire device, and a positioning rod with a positioning ring. When the device is in use, the device is fixed to the arch frame at the tunnel face by fasteners according to the designed angle of the blasting hole, and then the main rod is adjusted to a horizontal state. Then, according to the indication of the angle dial, the positioning rod is rotated to the designed angle to indicate the drilling angle of the blasting hole. During the actual drilling process, the drill rod is passed through the positioning ring for drilling. Compared with the existing technology, the blasting drilling positioning control device can assist in positioning the drill rod angle during the drilling process, ensure that the angle and depth of the drill hole meet the requirements, ensure that the blasting effect meets the design requirements, reduce rework caused by angle errors and repeated drilling and extra material use caused by angle deviations, and ensure that the project progress can be carried out as scheduled; reduce the instability of the tunnel structure caused by construction errors, improve construction safety, effectively avoid the phenomenon of excessive or under-excavation of the tunnel excavation contour line, and maintain the uniformity and stability of the tunnel section.

[0014] 2. The present invention sets a telescopic rod-type angle fixing part between the main rod and the positioning rod. After the positioning rod completes rotation, the length of the angle fixing part can be locked by the locking part on the angle fixing part tube body to prevent the angle indication of the positioning rod from deviating due to vibration and other reasons during the construction process, thereby ensuring the accurate angle positioning of the drilling hole; at the same time, the present invention sets a main rod and a positioning rod composed of a telescopic rod with a length scale line. In the case that the face is not in the same plane, the blasthole position can be accurately marked by the telescopic positioning rod after the angle is accurately controlled, so that the driller can accurately control the drilling position and drilling angle; the scale lines are arranged on the positioning rod, and the drilling rod length is calculated according to the corresponding scale lines after the drill rod length is marked, so that the drilling depth can be accurately controlled without the driller observing the marked point closely. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 For the present invention Figure 1 Schematic diagram of the local structure.

[0017] Description of reference numerals: 1. Angle scale; 2. Main rod; 3. Positioning rod; 4. Locking piece; 5. Positioning ring; 6. Fastener; 7. Laser auxiliary positioner; 8. Angle fixing piece; 9. Level bubble. DETAILED DESCRIPTION

[0018] The drawings in the present invention are not drawn strictly to scale, and the specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic structural diagrams.

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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 described 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.

[0020] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "up", "down", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] During tunnel excavation and drilling, the drilling angle and depth directly affect the effect of the tunnel blasting section. If the drilling angle is too large, the excavation area will be large, resulting in excessive material consumption. If the drilling angle is too small, the initial support section will be under-excavated, requiring re-blasting, which will affect the construction production progress. At present, in the process of tunnel construction, the drill rod angle is adjusted entirely by relying on the experience of on-site drillers, and accurate angle positioning cannot be performed. The drilling angles are uneven, the blasting effect is not ideal, the tunnel is seriously over-excavated, the material is over-consumed, and the economic benefits are poor. The main purpose of the blasting drilling positioning control device of the present invention is to correct the drilling angle of the drill rod through the positioning device to ensure that the drilling angle meets the requirements and thus meets the blasting requirements.

[0022] The main technical problem solved by the blasting drilling positioning control device of the present invention is to accurately assist in positioning the drill rod angle during the drilling process, ensure that the angle and depth of the drill hole meet the requirements, and ensure that the blasting effect meets the design requirements, thereby avoiding poor blasting effect caused by angle and depth deviation.

[0023] Combine Figures 1 to 2 As shown, a blasting drilling positioning control device includes: The angle scale 1 is semicircular.

[0024] The fixing part includes a main rod 2 and a fastener 6. The main rod 2 is arranged at the straight edge of the angle dial 1. The main rod 2 extends along the 0-degree line of the angle dial 1. The fastener 6 is arranged at the end of the main rod 2. The fastener 6 is used to fix the main rod 2 on the arch frame, which can save manpower and lock the positioning device to ensure that the drill rod will not shift during drilling.

[0025] The positioning part includes a positioning rod 3 and a positioning ring 5. The end of the positioning rod 3 is hinged at the center point of the angle scale 1. The positioning rod 3 is used to indicate the drilling angle of the blasting hole to ensure that the angle of the blasthole entering the rock meets the specified requirements; the positioning ring 5 is set on the positioning rod 3, and the positioning ring 5 is used for the drill rod to pass through.

[0026] As an alternative embodiment, the main rod 2 and the positioning rod 3 are both telescopic rods, and the main rod 2 and the positioning rod 3 both include a rod body and a movable tube that are socketed with each other, and the main rod 2 and the positioning rod 3 are both provided with a length scale line starting from the center point of the angle scale 1; for the situation where the face is not in the same plane, the blasthole position can be accurately marked by the telescopic positioning rod 3 after the angle is accurately controlled, so that the driller can accurately control the drilling position and drilling angle; the positioning rod 3 is arranged with scale lines, and the drilling rod length is calculated according to the corresponding scale lines after the drill rod length is marked, so that the drilling depth can be accurately controlled without the driller observing the marked point closely.

[0027] As an alternative embodiment, an angle fixing part 8 is provided between the main rod 2 and the positioning rod 3. The angle fixing part 8 is a telescopic rod. The two ends of the angle fixing part 8 are hinged to the rod bodies of the main rod 2 and the positioning rod 3 respectively. A locking part is provided on the tube body of the angle fixing part 8. The locking part is used to lock the length of the angle fixing part 8. Specifically, the locking part can be a clevis bolt threadedly connected to the tube body of the angle fixing part 8. By rotating the clevis bolt, the end of the clevis bolt can be abutted against the rod body to achieve the purpose of length locking; the angle fixing part 8 is used to lock the angle of the positioning rod 3 to prevent the occurrence of excessive deviation of the excavation angle due to vibration during construction.

[0028] As an alternative embodiment, a laser auxiliary locator 7 is provided on the positioning rod 3, and the laser auxiliary locator 7 is a bidirectional positioning laser; the front end of the positioning rod 3 can assist in controlling the direction of the drill rod excavation, and the rear end laser can be irradiated onto the angle scale 1, and a level bubble 9 is provided on the main rod 2; the level bubble 9 is used to adjust the main rod 2 to keep the main rod 2 in a horizontal state, which is more conducive to controlling the drill rod excavation angle.

[0029] As an alternative embodiment, there are multiple positioning rings 5, and the multiple positioning rings 5 are respectively arranged on the rod body and the movable tube of the positioning rod 3. The setting of multiple positioning rings 5 can ensure accurate and stable assistance to the drill rod to ensure more accurate blasting drilling positioning.

[0030] As an alternative embodiment, the positioning ring 5 can be detachably connected to the positioning rod 3, a threaded hole can be opened on the positioning rod 3, and a threaded connection column threadedly connected to the threaded hole is set on the positioning ring 5. The positioning ring 5 is configured in multiple groups, and the inner diameters of the multiple groups of positioning rings 5 are different; specifically, each group of positioning rings 5 can be adjusted according to the diameter of the drill pipe to ensure that the angle of the drill pipe entering the rock is consistent with the angle of the positioning rod 3.

[0031] As an alternative embodiment, the telescopic parts of the main rod 2 and the positioning rod 3 are both provided with locking members 4, which are used to lock the telescopic lengths of the main rod 2 and the positioning rod 3. Specifically, the locking members 4 can be clevis bolts arranged on the tube bodies of the main rod 2 and the positioning rod 3. By rotating the clevis bolts so that the ends of the clevis bolts abut against the rod bodies, the purpose of length locking can be achieved; this is to prevent the main rod 2 and the positioning rod 3 from not moving when the blast hole position can be accurately marked, thereby ensuring that the marking work can proceed smoothly.

[0032] As an alternative embodiment, the angle dial 1, the main rod 2 and the positioning rod 3 are all made of steel, and the main rod 2 and the positioning rod 3 are square steel; the selection of materials for related components makes the device light in weight and low in cost, which can meet the requirements of large-scale processing and portability, and is easy to control, which can effectively improve the accuracy and convenience of drilling angle and depth control.

[0033] The working principle and use method of the present invention: The present invention proposes a blasting drilling positioning control device. When the blasting drilling positioning control device is used, the device is fixed to the arch frame at the tunnel face by a fastener 6 according to the design angle of the blasting hole, and then the main rod 2 is adjusted to a horizontal state by a level bubble 9. Then, according to the indication of the angle dial 1, the positioning rod 3 is rotated to the design angle, and the deflection position of the positioning rod 3 is locked by an angle fixing member 8 to indicate the drilling angle of the blasting hole. During the actual drilling process, the drill rod is passed through the positioning ring 5 for drilling operation; during the drilling operation, the laser assisted positioning can be turned on Device 7, the laser auxiliary locator 7 is a bidirectional positioning laser; the laser at the front section of the positioning rod 3 can assist in controlling the direction of the drill rod's excavation, and the rear end laser can be irradiated onto the angle scale 1 to ensure the accurate positioning of the positioning rod 3. For the situation where the tunnel faces are not in the same plane, the blasthole position can be accurately marked by telescoping the positioning rod 3 after the angle is accurately controlled, so that the driller can accurately control the drilling position and drilling angle; scale lines are arranged on the positioning rod 3, and the drill rod length or the drill rod length is marked and calculated corresponding to the scale lines, so that the drilling depth can be accurately controlled without the driller observing the marked point closely.

[0034] By precisely controlling the drilling angle, repeated drilling and the use of extra materials due to angle deviations are reduced. This reduces material costs, improves construction efficiency, and minimizes unnecessary waste. Rework due to angle errors is reduced, saving time and human resources. Tunnel structural instability caused by construction errors is reduced, improving construction safety. Over-excavation or under-excavation of the tunnel contour is effectively avoided, maintaining the uniformity and stability of the tunnel cross-section.

[0035] Practical use cases of the present invention: The Luogu Tunnel on the SG5 section of the Xizhao Expressway is designed with separate left and right lanes, a herringbone longitudinal slope, and a design speed of 80 km / h. The right lane, with mileages from K73+334 to K79+995, is 6,661 meters long, while the left lane, with mileages from Z3K73+366 to Z3K79+936, is 6,570 meters long. Both are considered extra-long tunnels. The maximum burial depth for the left lane is 522 meters (mileage ZK74+700), while the maximum burial depth for the right lane is 539.34 meters (mileage K74+760). The tunnel also features a transverse tunnel, located on the left side of the line at a 90-degree angle to the minor mileage at Z3K76+700. It has a slope of -42.67‰, a length of 510 meters, and an entrance elevation of approximately 2,015.8 meters. This tunnel has effectively improved the problem of over-excavation of the excavation contour line by applying the blasting drilling positioning control device. When using traditional construction methods, drillers drill based on experience, which often causes large-scale over-excavation of the tunnel, serious over-consumption of tunnel concrete, and increased tunnel construction costs. By improving the drilling method and adding the blasting drilling positioning control device, the problem of tunnel over-excavation has been effectively improved, the over-consumption of concrete during tunnel construction has been reduced, the construction efficiency has been improved, and unnecessary waste has been reduced.

[0036] The above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions implemented by the present invention, and should all be covered by the protection scope of the present invention.

Claims

1. A blasting drilling positioning control device for positioning the drilling angle of a drill rod, characterized in that: include: Angle scale (1), semicircular; The fixing portion comprises a main rod (2) and a fastener (6), wherein the main rod (2) is arranged at a straight edge of the angle scale (1), the main rod (2) extends along the 0-degree line of the angle scale (1), and the fastener (6) is arranged at the end of the main rod (2), and the fastener (6) is used to fix the main rod (2) on the arch frame; The positioning portion comprises a positioning rod (3) and a positioning ring (5), wherein the end of the positioning rod (3) is hinged to the center point of the angle scale (1), and the positioning rod (3) is used to indicate the drilling angle of the blasting hole; the positioning ring (5) is arranged on the positioning rod (3), and the positioning ring (5) is used to allow the drill rod to pass through; The main rod (2) and the positioning rod (3) are both telescopic rods, and the main rod (2) and the positioning rod (3) both comprise a rod body and a movable tube that are sleeved together. The rod bodies and the movable tubes of the main rod (2) and the positioning rod (3) are both provided with length scale lines starting from the center point of the angle scale (1).

2. A blasting drilling positioning control device according to claim 1, characterized in that: An angle fixing member (8) is provided between the main rod (2) and the positioning rod (3). The angle fixing member (8) is a telescopic rod. Both ends of the angle fixing member (8) are hinged to the rod bodies of the main rod (2) and the positioning rod (3), respectively. A locking portion is provided on the angle fixing member (8), and the locking portion is used to lock the length of the angle fixing member (8).

3. A blasting drilling positioning control device according to claim 1, characterized in that: The positioning rod (3) is provided with a laser auxiliary positioner (7), the laser auxiliary positioner (7) is a bidirectional positioning laser, and the main rod (2) is provided with a level bubble (9).

4. The blasting drilling positioning control device according to claim 1, characterized in that: A plurality of positioning rings (5) are provided, and the plurality of positioning rings (5) are respectively arranged on the rod body and the movable tube of the positioning rod (3).

5. A blasting drilling positioning control device according to claim 4, characterized in that: The positioning ring (5) is detachably connected to the positioning rod (3), and the positioning ring (5) is configured in multiple groups, and the inner diameters of the multiple groups of positioning rings (5) are different.

6. The blasting drilling positioning control device according to claim 2, characterized in that: The telescopic portions of the main rod (2) and the positioning rod (3) are both provided with locking pieces (4), and the locking pieces (4) are used to lock the telescopic lengths of the main rod (2) and the positioning rod (3).

7. The blasting drilling positioning control device according to claim 1, characterized in that: The angle scale (1), main rod (2) and positioning rod (3) are all made of steel, and the main rod (2) and positioning rod (3) are square steel.

Images