Wire-line coring drilling tool for underground tunnel earth surface and construction method

Abstract

The invention discloses a rope coring drilling tool for underground tunnel earth surface and a construction method.The drilling tool is composed of an outer pipe unit and an inner pipe unit, in the outer pipe unit, a drill bit, a reamer and other components are sequentially connected in a threaded mode, in the inner pipe unit, a clamp spring seat, an inner pipe and the like are also sequentially connected in a threaded mode, and meanwhile an outer pipe lengthening pipe and an inner pipe lengthening pipe are arranged; the lengths of the two connecting rods are consistent; the construction method comprises the steps of lengthening the outer pipe unit and lengthening the inner pipe unit, when the outer pipe unit is lengthened, the outer pipe, the reamer and the like are firstly connected and put down, then the centralizer and the outer pipe lengthening pipe are sequentially connected to the needed length, and finally the elastic clamping chamber and the drill rod are connected and put down to the proper position; when the inner pipe unit is lengthened, the inner pipe unit is sequentially connected with the inner pipe and the inner pipe lengthening pipe to the required length by means of a lowering assembly and an inner pipe clamp and is gradually lowered to the limited position. The problems that a traditional inner pipe is short in size, and a rock core needs to be frequently taken and placed are solved, the auxiliary time is shortened, the drilling efficiency is improved, and wide application prospects are achieved.

Description

Technical Field

[0001] The present invention relates to the field of drilling technology, and more particularly to a rope coring drill tool for tunnel surface and a construction method. Background Art

[0002] In the drilling industry, wireline coring tools, as key coring tools, have gained widespread application due to their unique advantages. The traditional wireline coring drilling process typically involves dropping an inner tube to the bottom, adding drill pipe, circulating slurry to the drill bit, drilling back, salvaging the inner tube to retrieve the core, and then dropping the inner tube, repeating the drilling cycle.

[0003] However, the traditional rope coring process has exposed many shortcomings in actual application that need to be addressed: Limited inner tube size: The inner tube size of traditional coring devices is generally short, usually only about three meters. In tunnel drilling construction, most inner tubes are less than 1.5 meters long. This limitation means that once the core sample fills the inner tube during the drilling operation, drilling operations cannot continue, and the operation must be interrupted to carry out subsequent steps such as core extraction, which greatly affects the continuity and efficiency of drilling. The auxiliary time is too long: The auxiliary time consumed in the process of salvaging the inner tube and placing the inner tube is too long, taking up a lot of valuable construction time. In drilling operations, time is efficiency. Long auxiliary operations seriously affect the overall footage efficiency and increase construction costs and time cycles.

[0004] In order to effectively overcome the defects of the above-mentioned traditional rope coring process, the present invention proposes a rope coring drill tool for tunnel surface and a construction method. Summary of the Invention

[0005] The present invention provides a rope coring drill tool for tunnel surface and a construction method. By threading an outer tube extension tube between a centralizer and a spring-loaded chamber, and threading an inner tube extension tube between an inner tube and the inner tube assembly, synchronous lengthening of the outer tube unit and the inner tube unit is achieved, thereby achieving continuous drilling without the need to salvage the inner tube, thereby solving the problems existing in the above-mentioned background technology.

[0006] In order to achieve the above object, the technical solution of the present invention is: A rope coring drill tool for tunnel surface, comprising an outer tube unit and an inner tube unit, the outer tube unit comprising a drill bit, a reamer, a straightening ring, an outer tube, a straightening ring, a seat ring, a spring chamber, and a drill rod, the straightening ring being installed in the reamer, the drill bit, reamer, outer tube, straightening ring, spring chamber, and drill rod being threadedly connected in sequence to form the outer tube unit, the inner tube unit comprising a retaining spring seat, a retaining spring, a retaining spring retaining ring, an inner tube, and an inner tube assembly, the retaining spring seat, inner tube, and inner tube assembly being threadedly connected in sequence to form the inner tube unit, an outer tube extension tube being threadedly connected between the straightening ring and the spring chamber, an inner tube extension tube being threadedly connected between the inner tube and the inner tube assembly, the outer tube extension tube and the inner tube extension tube being provided as at least one, and the outer tube extension tube and the inner tube extension tube being of the same length.

[0007] Furthermore, a seat ring is installed at the bottom of the ejection chamber.

[0008] Furthermore, the clamping spring is installed in the clamping spring seat, and the clamping spring retaining ring is installed in the clamping spring seat and is located on the top of the clamping spring.

[0009] Furthermore, a spring-loaded caliper is provided on the inner tube assembly, and a slot adapted to the spring-loaded caliper is provided in the spring-loaded chamber.

[0010] Furthermore, it also includes an inner pipe clamp, which includes a pair of locking blades, the pair of locking blades are hinged, the bottom size of the inner pipe clamp is consistent with the top size of the drill pipe, and the inner side of the inner pipe clamp is symmetrically threaded with a pair of holding bushes for fixing the inner pipe and the inner pipe extension pipe.

[0011] Furthermore, a pair of locking blades are symmetrically provided with a locking female head and a locking male head respectively, and the locking male head and the locking female head are snap-fitted.

[0012] Furthermore, a locking hole is provided on the female end of the lock buckle, a positioning hole is provided on the male end of the lock buckle, a locking screw is threadedly connected to the locking hole, and the locking screw is also threadedly matched with the positioning hole to limit and fix.

[0013] Furthermore, a pair of hanging ears are symmetrically fixed on the outer sides of a pair of locking blades, and anti-slip strips are symmetrically provided on the inner sides of a pair of holding shoes. The anti-slip strips are arranged at intervals, and the inner sides of the holding shoes are wide at the top and narrow at the bottom.

[0014] Furthermore, it also includes a lowering component, which includes a bearing, and the bearing is rollingly connected to a connecting rod, and a pair of hanging rings are symmetrically fixed on both sides of the bottom of the connecting rod.

[0015] The present invention also discloses a continuous coring construction method, which is carried out using the drilling tool of the present invention and specifically comprises the following steps: S1: Lengthening of outer tube unit: First, connect the reamer, drill bit, and built-in centralizing ring of the reamer with the outer tube in sequence, use the power head or winch to lower the outer tube to a position more than 30 cm exposed from the hole, hold and tighten the outer tube, and use one end of the centralizer to thread the exposed end of the outer tube. After the connection is completed, use the power head or winch to lower the outer tube into the hole to a position more than 30 cm exposed from the hole, hold and tighten the outer tube, and use one end of the first outer tube extension tube to thread the other end of the centralizer. After the connection is completed, use the power head or winch to lower the first outer tube extension tube into the hole to a position more than 30 cm exposed from the hole, hold and tighten the first The outer tube extension tube is connected with the exposed end of the first outer tube extension tube by threading with one end of the second outer tube extension tube. After the connection is completed, the power head or winch is used to lower the second outer tube extension tube into the hole until it is exposed more than 30 cm from the hole mouth. The second outer tube extension tube is tightened and tightened. The outer tube extension tubes are added repeatedly until the required number of outer tube extension tubes is reached. The other end of the last outer tube extension tube is threadedly connected with one end of the card chamber. The card chamber has a built-in seat ring. The other end of the card chamber is threadedly connected to the drill pipe. After the connection is completed, the power head or winch is used to lower the outer tube unit into the hole until the drill bit is more than 1 meter away from the bottom of the hole. S2: Lengthening the inner tube unit: Fix the first inner tube clamp at the end position of the drill pipe of the outer tube unit connected in S1, install the circlip in the circlip seat and install the circlip retaining ring on the top of the circlip, and use one end of the inner tube to thread the circlip seat. After the connection is completed, use a salvage device and cooperate with the lowering assembly to lower it into the outer tube until the thread at the other end of the inner tube is exposed to the inner tube clamp by 20-30 cm. Tighten the locking screw to fix the inner tube through the inner tube clamp, and fix the second inner tube clamp at a position 20-30 cm away from the thread at one end of the first inner tube extension tube. Use the other end of the first inner tube extension tube to thread the other end of the inner tube. After the connection is completed, remove the first inner tube clamp and lower the first inner tube extension tube through the salvage device and cooperate with the lowering assembly to lower it Put and fix the second inner pipe clamp on the end of the drill pipe. After the fixation is completed, fix the removed first inner pipe clamp 20-30 cm away from one end of the thread of the second inner pipe extension pipe, and use the other end of the second inner pipe extension pipe to threadably connect with the end of the first inner pipe extension pipe installed with the second inner pipe clamp. After the connection is completed, remove the second inner pipe clamp and use the overshot and lowering assembly to lower the second inner pipe and fix the first inner pipe clamp on the end of the drill pipe. Repeat this process to increase the number of inner pipe extension pipes until the required number of inner pipe extension pipes is reached. Remove the lowering assembly, use the last inner pipe extension pipe to thread the inner pipe assembly, and connect the inner pipe assembly to the overshot. After the connection is completed, remove the first inner pipe clamp and the second inner pipe clamp, and use the overshot to lower the inner pipe assembly to a limited position; The step of lowering the inner tube in S2 is as follows: fix the bearing at the end of the lowering assembly with a salvage tool, fix the inner tube clamp to one end of the inner tube, use a wire rope to respectively connect the hanging ring at the bottom of the connecting rod and the hanging ear of the locking blade, lower the salvage tool, and when the other end of the inner tube approaches the thread of the centralizer, rotate the inner tube to thread it with the thread of the centralizer, and disconnect the connection between the hanging ring and the hanging ear after the connection is completed. The lowering process of the inner tube extension tube is the same as the lowering process of the inner tube; The number of the outer tube extension tubes added in S1 is the same as the number of the inner tube extension tubes added in S2.

[0016] The present invention has the following beneficial effects: (1) The present invention increases the length of the outer tube unit and the inner tube unit by providing an outer tube extension tube and an inner tube extension tube, thereby solving the problem of the short size of the traditional inner tube, reducing the number of times the inner tube is frequently used to take and put the core, and significantly improving the drilling efficiency. At the same time, it also facilitates construction operations and shortens auxiliary time.

[0017] (2) The inner pipe clamp fixes the inner pipe through a pair of hinged locking blades and inner holding shoes. From the snap fit between the locking female head and the male head to the threaded fit between the locking screw and the locking hole and the positioning hole, multiple guarantees are provided for the locking of the inner pipe clamp, ensuring that the locking blades are firmly connected and preventing the inner pipe from falling off due to loosening of the inner pipe clamp. In addition, the setting of the outer hanging ears of the locking blades facilitates the movement of the inner pipe clamp, and the anti-slip strip on the inner side of the holding shoe and the wide-up and narrow-down design increase the anti-slip effect, thereby improving the convenience and safety of construction.

[0018] (3) By setting up a lowering assembly, when lowering the inner tube or the inner tube extension tube, due to the setting of the bearing and the connecting rod, the inner tube or the inner tube extension tube can be rotated to facilitate the threaded connection, thereby improving work efficiency and saving work time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the outer tube unit of the present invention; Figure 3 It is a schematic diagram of the structure of the inner tube unit of the present invention; Figure 4 It is a schematic diagram of the card slot structure of the present invention; Figure 5 It is a schematic structural diagram of the inner pipe clamp of the present invention; Figure 6 It is a schematic diagram of the hinged structure of the locking blade of the present invention; Figure 7 This is a schematic diagram of the tile holding structure of the present invention; Figure 8 This is a schematic diagram of the extended structure of the outer tube unit of the present invention; Figure 9 This is a schematic diagram of the inner tube unit lengthened structure of the present invention; Figure 10 It is a schematic diagram of the structure of the lowering component of the present invention; In the figure, 1-drill bit, 2-reamer, 3-centering ring, 4-outer tube, 5-centering device, 6-spring-loaded chamber, 7-drill pipe, 8-circlip seat, 9-inner tube, 10-inner tube assembly, 11-outer tube extension tube, 12-inner tube extension tube, 13-seat ring, 14-circlip, 15-circlip retaining ring, 16-spring-loaded caliper, 17-slot, 18-inner tube clamp, 19-locking blade, 20-locking shoe, 21-locking female head, 22-locking male head, 23-locking hole, 24-locking screw, 25-locating hole, 26-hanging ear, 27-anti-slip strip, 28-fishing device, 29-connecting rod. 30-bearing, 31-hanging ring. DETAILED DESCRIPTION

[0020] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0021] Example 1

[0022] This embodiment discloses a tunnel surface rope coring drill, as shown in the attached Figure 1-7 and attached Figure 10As shown, it includes an outer tube unit and an inner tube unit, the outer tube unit includes a drill bit 1, a reamer 2, a straightening ring 3, an outer tube 4, a straightening device 5, a seat ring 13, a card chamber 6, and a drill rod 7. The drill bit 1, the reamer 2, the outer tube 4, the straightening device 5, the card chamber 6, and the drill rod 7 are sequentially connected by threads to form the outer tube unit. The straightening ring 3 is installed in the reamer 2 to ensure the stability of the reamer 2 during operation, so that the drilling operation is more accurate and stable, and the drilling quality is further improved. 6 is provided with a seat ring 13 at the bottom; the setting of the seat ring 13 can provide stable support and positioning for the card chamber 6, enhance the structural strength of the card chamber 6, and ensure its normal operation during the drilling process; in this embodiment, the drill rod 7 is used to replace the original card stop head, and the seat ring 13 is installed at the bottom of the card chamber 6; and a centralizer 5 is threadedly connected between the outer tube 4 and the card stop head to compensate for the center deviation of the drill tool during the drilling process; the inner tube unit includes a retaining spring seat 8, a retaining spring 14, a retaining spring stop The retaining ring 15, the inner tube 9, the inner tube assembly 10, the retaining ring seat 8, the inner tube 9, the inner tube assembly 10 are sequentially threadedly connected to form an inner tube unit, the retaining ring 14 is installed in the retaining ring seat 8, and the retaining ring 15 is installed in the retaining ring seat 8 and is located on the top of the retaining ring 14; this installation method can effectively fix the retaining ring 14, prevent the retaining ring 14 from being displaced during the drilling process, ensure that the retaining ring 14 reliably grasps the core, and improves the success rate of coring; there is an external threaded connection between the centralizer 5 and the ejection chamber 6 The outer tube extension tube 11 and the inner tube extension tube 12 are threadedly connected between the inner tube 9 and the inner tube assembly 10. The outer tube extension tube 11 and the inner tube extension tube 12 are provided as at least one piece and are of the same length. By providing the outer tube extension tube 11 and the inner tube extension tube 12, the length of the outer tube unit and the inner tube unit are effectively increased, solving the problem of the short size of the traditional inner tube 9, reducing the frequent removal and placement of cores from the inner tube 9, and improving drilling efficiency. At the same time, the reasonable structural design also facilitates construction operations and helps shorten auxiliary time.

[0023] Specifically, the inner tube assembly 10 is provided with a spring caliper 16, and the spring card chamber 6 is provided with a slot 17 adapted to the spring caliper 16; the coordinated design of the spring caliper 16 and the slot 17 enables precise connection and positioning between the inner tube assembly 10 and the spring card chamber 6, thereby ensuring the stability of the inner tube 9 during the drilling process, preventing the inner tube 9 from shaking or falling off, and thus ensuring the smooth progress of the coring operation.

[0024] Specifically, it also includes an inner pipe clamp 18, which includes a pair of locking blades 19. The pair of locking blades 19 are hinged, and the bottom size of the inner pipe clamp 18 is consistent with the top size of the drill rod 7. The inner side of the inner pipe clamp 18 is symmetrically threaded with a pair of holding bushes 20 for fixing the inner pipe 9 and the inner pipe extension pipe 12.

[0025] Specifically, it also includes a lowering component, which includes a bearing 30. The bearing 30 is rollingly connected to a connecting rod 29. A pair of hanging rings 31 are symmetrically fixed on both sides of the bottom of the connecting rod 29.

[0026] Example 2

[0027] In order to strengthen the locking effect of the inner tube 9, the difference from the above embodiment is that, as shown in the attached Figure 5 As shown, a pair of locking blades 19 are symmetrically provided with a locking female head 21 and a locking male head 22 on both sides, and the locking male head 22 and the locking female head 21 are snap-fitted together; the snap-fitting design of the locking male head 22 and the locking female head 21 enables a pair of locking blades 19 to be quickly and firmly connected together, further enhancing the fixing effect of the inner pipe clamp 18 on the inner pipe 9, and also facilitating the opening and closing operations of the inner pipe clamp 18.

[0028] Example 3

[0029] In order to further improve the locking and fixing effect of the inner pipe clamp 18, as shown in the attached Figure 5 As shown, the difference from the above embodiment is that a locking hole 23 is provided on the locking female head 21, and a positioning hole 25 is provided on the locking male head 22. The locking hole 23 is threadedly connected to a locking screw 24, and the locking screw 24 is also threadedly matched with the positioning hole 25 for limiting fixation; the threaded matching of the locking screw 24 with the locking hole 23 and the positioning hole 25 provides a double guarantee for the locking of the inner pipe clamp 18, ensuring the firmness and stability of the connection of the locking blade 19, and preventing the inner pipe clamp 18 from loosening during construction, causing the inner pipe 9 to fall off, delaying the progress of construction.

[0030] Example 4

[0031] In order to facilitate the movement of the inner pipe clamp 18, as shown in the attached Figure 5-6 As shown, the difference from the above embodiment is that a pair of hanging ears 26 are symmetrically fixed on the outer side of a pair of locking blades 19; in order to further increase the anti-slip effect, a pair of anti-slip strips 27 are symmetrically provided on the inner side of the holding shoe 20, and the anti-slip strips 27 are arranged at intervals. The inner side of the holding shoe 20 is wide at the top and narrow at the bottom.

[0032] Example 5

[0033] This embodiment discloses a continuous coring construction method, as shown in the attached Figure 8-9 As shown, the construction method is carried out using the drilling tool of the present invention, and the method specifically includes the following steps: In this embodiment, the lengthening of two outer tubes 4 and the lengthening of two inner tubes 12 are used as examples for explanation: S1: Lengthening the outer tube unit: First, use the outer tube 4 to connect the reamer 2, the drill bit 1, and the built-in centralizing ring 3 of the reamer 2 in sequence, use a power head or a winch (the power head and the winch are commercially available equipment, not shown in the figure, the same as the rest) to lower the outer tube 4 to a position more than 30 cm exposed from the hole opening, hold and tighten the outer tube 4, and use one end of the centralizer 5 to thread the exposed end of the outer tube 4. After the connection is completed, use the power head or the winch to lower the outer tube 4 into the hole to a position more than 30 cm exposed from the hole opening, hold and tighten the outer tube 4 (in this embodiment, a pipe clamp tool or external equipment can be used to clamp and tighten the outer tube, and this process will not be repeated here), use one end of the first outer tube extension tube 11 to thread the other end of the centralizer 5, and use the power head after the connection is completed. Or the winch lowers the first outer tube extension tube 11 into the hole until it is exposed more than 30 cm from the hole opening, and the first outer tube extension tube 11 is tightened and supported, and one end of the second outer tube extension tube 11 is threadedly connected to the exposed end of the first outer tube extension tube 11. After the connection is completed, a power head or a winch is used to lower the second outer tube extension tube 11 into the hole until it is exposed more than 30 cm from the hole opening, and the second outer tube extension tube 11 is tightened and supported, and the other end of the second outer tube extension tube 11 is threadedly connected to one end of the card chamber 6. The card chamber 6 has a built-in seat ring 13, and the other end of the card chamber 6 is threadedly connected to the drill rod 7. After the connection is completed, a power head or a winch is used to lower the outer tube unit into the hole until the drill bit 1 is more than 1 meter away from the bottom of the hole; S2: Lengthening the inner tube unit: Fix the first inner tube clamp 18 at the end position of the drill pipe 7 of the outer tube unit connected in S1, install the circlip 14 in the circlip seat 8 and install the circlip retaining ring 15 on the top of the circlip 14, and use one end of the inner tube 9 to thread the circlip seat 8. After the connection is completed, use the salvage device 28 and cooperate with the lowering assembly to lower it into the outer tube 4 until the thread at the other end of the inner tube 9 is exposed to the inner tube clamp 18 20-30 cm position, lock the locking screw 24 to fix the inner tube 9 through the inner tube clamp 18, and fix the second inner tube clamp 18 at one end of the first inner tube extension tube 12 at a position 20-30 cm away from the thread, and use the other end of the first inner tube extension tube 12 to thread the other end of the inner tube 9. After the connection is completed, remove the first inner tube clamp 18 and pass the first inner tube extension tube 12 through the salvage device. 28 and cooperate with the lowering assembly to lower it and fix the second inner pipe clamp 18 to the end of the drill pipe 7. After the fixation is completed, the first inner pipe clamp 18 that was removed is fixed at a distance of 20-30 cm from one end of the thread of the second inner pipe extension tube 12, and the other end of the second inner pipe extension tube 12 is threadedly connected to the end of the first inner pipe extension tube 12 equipped with the second inner pipe clamp 18. After the connection is completed, the second inner pipe clamp 18 is removed and the second inner pipe 9 is lowered through the salvage device 28 and cooperated with the lowering assembly to fix the first inner pipe clamp 18 to the end of the drill pipe 7. The lowering assembly is removed, and the inner pipe assembly 10 is threadedly connected with the second inner pipe extension tube 12, and the inner pipe assembly 10 is connected to the salvage device 28. After the connection is completed, the first inner pipe clamp 18 and the second inner pipe clamp 18 are removed, and the inner pipe assembly 10 is lowered to a limited position with the salvage device 28; The step of lowering the inner tube in S2 is as follows: fix the bearing 30 at the end of the lowering assembly with a fishing tackle 28, fix the inner tube clamp to one end of the inner tube 9, use a wire rope to respectively connect the hanging ring 31 at the bottom of the connecting rod 29 and the hanging ear 26 of the locking blade 19, lower the fishing tackle 28, and when the other end of the inner tube 9 approaches the thread of the centralizer 5, rotate the inner tube 9 to thread it with the thread of the centralizer 5, and after the connection is completed, disconnect the connection between the hanging ring 31 and the hanging ear 26. The lowering process of the inner tube extension tube 12 is the same as the lowering process of the inner tube 9, and will not be repeated here. It should be noted that the number of the outer tube extension tubes 11 added in S1 is the same as the number of the inner tube extension tubes 12 added in S2.

Claims

1. A rope coring drill for tunnel surface, characterized in that: The invention comprises an outer tube unit and an inner tube unit, wherein the outer tube unit comprises a drill bit (1), a reamer (2), a centering ring (3), an outer tube (4), a centering ring (5), a seat ring (13), a spring-loaded chamber (6), and a drill rod (7), wherein the centering ring (3) is installed in the reamer (2), and the drill bit (1), the reamer (2), the outer tube (4), the centering ring (5), the spring-loaded chamber (6), and the drill rod (7) are sequentially connected by threads to form the outer tube unit, and the inner tube unit comprises a retaining spring seat (8), a retaining spring (14), a retaining spring retaining ring (15), An inner tube (9), an inner tube assembly (10), the retaining spring seat (8), the inner tube (9), and the inner tube assembly (10) are sequentially threadedly connected to form an inner tube unit, an outer tube extension tube (11) is threadedly connected between the centralizer (5) and the spring-clamping chamber (6), an inner tube extension tube (12) is threadedly connected between the inner tube (9) and the inner tube assembly (10), the outer tube extension tube (11) and the inner tube extension tube (12) are at least one and the outer tube extension tube (11) and the inner tube extension tube (12) are of the same length.

2. The surface tunnel rope coring drill according to claim 1, characterized in that: A seat ring (13) is installed at the bottom of the ejection chamber (6).

3. The surface tunnel rope coring drill according to claim 1, characterized in that: The retaining spring (14) is installed in the retaining spring seat (8), and the retaining spring ring (15) is installed in the retaining spring seat (8) and is located on the top of the retaining spring (14).

4. The surface tunnel rope coring drill according to claim 1, characterized in that: The inner tube assembly (10) is provided with a spring-loaded caliper (16), and a slot (17) adapted to the spring-loaded caliper (16) is provided in the spring-loaded chamber (6).

5. The surface tunnel rope coring drill according to claim 1, characterized in that: The inner pipe clamp (18) further comprises a pair of locking blades (19) which are hinged. The bottom size of the inner pipe clamp (18) is consistent with the top size of the drill rod (7). The inner side of the inner pipe clamp (18) is symmetrically threaded with a pair of holding bushes (20) for fixing the inner pipe (9) and the inner pipe extension pipe (12).

6. The tunnel surface wireline coring drill according to claim 5, characterized in that: A locking female head (21) and a locking male head (22) are respectively provided on symmetrical sides of a pair of locking blades (19), and the locking male head (22) and the locking female head (21) are snap-fitted.

7. The surface tunnel rope coring drill according to claim 6, characterized in that: The locking female head (21) is provided with a locking hole (23), the locking male head (22) is provided with a positioning hole (25), the locking hole (23) is threadedly connected to a locking screw (24), and the locking screw (24) is also threadedly matched with the positioning hole (25) to limit and fix.

8. The tunnel surface wireline coring drill according to claim 5, characterized in that: A pair of hanging ears (26) are symmetrically fixed on the outer sides of a pair of locking blades (19), and anti-slip strips (27) are symmetrically provided on the inner sides of a pair of holding tiles (20). The anti-slip strips (27) are arranged at intervals, and the inner sides of the holding tiles (20) are wide at the top and narrow at the bottom.

9. The surface tunnel rope coring drill according to claim 1, characterized in that: It also includes a lowering assembly, which includes a bearing (30). The bearing (30) is rollingly connected to a connecting rod (29). A pair of hanging rings (31) are symmetrically fixed on both sides of the bottom of the connecting rod (29).

10. A construction method using the coring drill tool according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Lengthening of outer tube unit: First, connect the reamer (2), the drill bit (1), and the inner centering ring (3) of the reamer (2) with the outer tube (4) in sequence, use the power head or the winch to lower the outer tube (4) to a position more than 30 cm above the hole opening, hold and tighten the outer tube (4), and use the one end of the centering device (5) to connect the exposed end of the outer tube (4) with a thread, and after the connection is completed, use the power head or the winch to lower the outer tube (4) into the hole to a position more than 30 cm above the hole opening, hold and tighten the outer tube (4), and use the first outer tube extension tube (11) to connect one end with the other end of the centering device (5) with a thread, and after the connection is completed, use the power head or the winch to lower the first outer tube extension tube (11) into the hole to a position more than 30 cm above the hole opening, hold and tighten the first outer tube extension tube Long tube (11), one end of the second outer tube extension tube (11) is threadedly connected to the exposed end portion of the first outer tube extension tube (11), after the connection is completed, the second outer tube extension tube (11) is lowered into the hole to a position more than 30 cm above the hole mouth, the second outer tube extension tube (11) is tightened, and the outer tube extension tube (11) is increased repeatedly until the required number of outer tube extension tubes (11) is reached, and the other end of the last outer tube extension tube (11) is threadedly connected to one end of the card chamber (6), the card chamber (6) has a built-in seat ring (13), and the other end of the card chamber (6) is threadedly connected to the drill rod (7), and after the connection is completed, the outer tube unit is lowered into the hole using a power head or a winch until the drill bit (1) is more than 1 meter away from the bottom of the hole; S2: Lengthening the inner tube unit: Fix the first inner tube clamp (18) at the end position of the drill pipe (7) of the outer tube unit connected in S1, install the circlip (14) in the circlip seat (8) and install the circlip retaining ring (15) on the top of the circlip (14), and use one end of the inner tube (9) to connect with the circlip seat (8) by thread. After the connection is completed, use the fishing device (28) and the lowering assembly to lower it into the outer tube (4) until the thread at the other end of the inner tube (9) is exposed to the inner tube clamp (18) 20- At the 30 cm position, tighten the locking screw (24) through the inner tube clamp (18) to fix the inner tube (9), fix the second inner tube clamp (18) at the position 20-30 cm away from the thread at one end of the first inner tube extension tube (12), and use the other end of the first inner tube extension tube (12) to connect the other end of the inner tube (9) with the thread. After the connection is completed, remove the first inner tube clamp (18) and lower the first inner tube extension tube (12) through the salvage device (28) and cooperate with the lowering assembly to lower it and Fix the second inner pipe clamp (18) to the end of the drill pipe (7). After the fixing is completed, fix the first inner pipe clamp (18) removed to 20-30 cm away from the threaded end of the second inner pipe extension tube (12). Use the other end of the second inner pipe extension tube (12) to connect the threaded end of the first inner pipe extension tube (12) with the second inner pipe clamp (18). After the connection is completed, remove the second inner pipe clamp (18) and lower the second inner pipe (9) through the salvage device (28) and the lowering assembly. Place and fix the first inner pipe clamp (18) on the end of the drill pipe (7), and repeatedly increase the inner pipe extension tube (12) until the required number of inner pipe extension tubes (12) is reached, remove the lowering assembly, use the last inner pipe extension tube (12) to thread the inner pipe assembly (10), and connect the inner pipe assembly (10) to the salvage device (28). After the connection is completed, remove the first inner pipe clamp (18) and the second inner pipe clamp (18), and use the salvage device (28) to lower the inner pipe assembly (10) to a limited position; The step of lowering the inner tube in S2 is as follows: fix the bearing (30) at the end of the lowering assembly with a salvage device (28), fix the inner tube clamp to one end of the inner tube (9), use a wire rope to respectively connect the bottom hanging ring (31) of the connecting rod (29) and the hanging ear (26) of the locking blade (19), lower the salvage device (28) and rotate the inner tube (9) to connect it with the thread of the centralizer (5) when the other end of the inner tube (9) is close to the thread of the centralizer (5), disconnect the connection between the hanging ring (31) and the hanging ear (26), and the lowering process of the inner tube extension tube (12) is the same as the lowering process of the inner tube (9); The number of the outer tube extension tubes (11) added in S1 is the same as the number of the inner tube extension tubes (12) added in S2.

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