CN116163782A - Anchor rod pore-forming device and construction method thereof - Google Patents
Anchor rod pore-forming device and construction method thereof Download PDFInfo
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- CN116163782A CN116163782A CN202310103049.9A CN202310103049A CN116163782A CN 116163782 A CN116163782 A CN 116163782A CN 202310103049 A CN202310103049 A CN 202310103049A CN 116163782 A CN116163782 A CN 116163782A
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- Prior art keywords
- reamer
- rod
- sleeve
- drill bit
- diameter
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model relates to a technical field of stock construction especially relates to a stock pore-forming device and construction method thereof, and stock pore-forming device includes rig, drilling rod and drill bit, the circumference equipartition of drilling rod is provided with a plurality of reamer, and is a plurality of the reamer is all towards being close to or keeping away from the direction slip of drilling rod axis, be provided with the adjusting part that is used for adjusting reamer position on the drilling rod, the reamer is close to the drill bit setting, be provided with the sleeve pipe on the rig, the sleeve pipe cover is established on the drilling rod, the diameter of sleeve pipe is greater than the diameter of drilling rod, the diameter of drill bit is less than the diameter of sleeve pipe, works as when the reamer is kept away from the position of drilling rod axis, the outer lane diameter that the reamer formed is greater than the diameter of sleeve pipe, works as the reamer is located when being close to the position of drilling rod axis, the outer lane diameter that the reamer formed is less than the diameter of sleeve pipe. The application has the effect of reducing the influence of hole wall collapse on the construction of the anchor rod.
Description
Technical Field
The application relates to the technical field of anchor rod construction, in particular to an anchor rod pore-forming device and a construction method thereof.
Background
In the engineering construction field, the proportion of tunnels and underground engineering and slope engineering is increasingly larger. In many tunnel and slope construction projects, the mortar anchor rod is required to be used as a supporting system to realize the stabilization of surrounding rock, so that the mortar anchor rod support is a supporting system commonly applied in tunnel or slope engineering at present. When the anchor rod is implemented, the common practice is to firstly drill an anchor hole on the ground by using a drilling machine, clear away rock fragments in the anchor hole, then insert an anchor reinforcing steel bar into the anchor hole, and then pour mortar for fixing.
When the underground soil layer is a soft soil layer or a gravel layer, collapse of the hole wall is easily caused in the process of drilling and subsequent rock debris cleaning, and the collapsed rock debris blocks the anchor hole, so that subsequent insertion of anchor bars is blocked, and construction of the anchor rod is inconvenient.
Disclosure of Invention
In order to reduce the influence of hole wall collapse on anchor rod construction, the application provides an anchor rod pore-forming device and a construction method thereof.
In a first aspect, the application provides an anchor rod pore-forming device, adopts following technical scheme:
the utility model provides an anchor rod pore-forming device, includes rig, drilling rod and drill bit, the circumference equipartition of drilling rod is provided with a plurality of reamer, and is a plurality of the reamer is all slided towards the direction that is close to or keeps away from the drilling rod axis, be provided with the adjusting part that is used for adjusting reamer position on the drilling rod, the reamer is close to the drill bit setting, be provided with the sleeve pipe on the rig, the sleeve pipe cover is established on the drilling rod, the sheathed tube diameter is greater than the diameter of drilling rod, the diameter of drill bit is less than the sheathed tube diameter, works as when the reamer is kept away from the position of drilling rod axis, the outer lane diameter that the reamer formed is greater than the sheathed tube diameter, works as when the reamer is located the position that is close to the drilling rod axis, the outer lane diameter that the reamer formed is less than the sheathed tube diameter.
Through adopting above-mentioned technical scheme, install the sleeve pipe on the rig, the drill stem cover is established in the sleeve pipe, drill bit and reamer are located the sleeve pipe outsidely, shift out the struts with the reamer through adjusting part, the rig rotates the drilling rod again, the drilling rod drives the drill bit and rotates, the drill bit drills the aperture earlier, the reamer that the rethread back propped expands the aperture to required diameter, thereby form the anchor hole on ground, in the in-process that forms the anchor hole, the sleeve pipe moves down along with the drilling rod, thereby realized the sleeve pipe while drilling, after the anchor bores got required degree of depth, move back the reamer, and separate sleeve pipe and rig, put forward the drill bit into the anchor hole, stay the sleeve pipe in the anchor hole, support the lateral wall of anchor hole through the sleeve pipe, thereby avoided soft soil layer collapse to the influence of operations such as drilling and follow-up clear hole, in the anchor hole is synchronous in the anchor hole when the sleeve pipe follows the drilling simultaneously, the collapse of hole wall in the drilling process has been reduced.
Optionally, the reamer slope sets up, the reamer is close to the one end of drill bit and is less than the reamer and keeps away from the one end of drill bit to the distance of drill rod axis, adjusting part includes the slip cap and establishes the regulation round platform on the drill rod, it slides along the length direction of drill rod to adjust the round platform, the diameter that the round platform was close to drill bit one end is less than the diameter of keeping away from drill bit one end, it is located between reamer and the drill rod to adjust the round platform, the inner wall sliding connection of reamer is on the lateral wall of adjusting the round platform, be provided with on the rig and be used for driving the gliding regulating part of regulation round platform.
Through adopting above-mentioned technical scheme, the downward slip adjusts the round platform, adjusts the round platform and drives the reamer of butt on adjusting the round platform lateral wall and slide towards the direction of keeping away from the drilling rod axis, thereby make the reamer expand, and adjust the round platform and play the effect of support to the reamer, in order to the reaming of anchor eye, after drilling is accomplished, upward slip adjusts the round platform, adjust the round platform and drive the reamer of connecting on adjusting the round platform lateral wall and withdraw, thereby realized the expansion and the withdrawal of reamer, in order to shift out drill bit and reamer from the sleeve pipe.
Optionally, the first spout has been seted up on the lateral wall of adjusting the round platform, the length direction of first spout is on a parallel with the bus direction at the first spout place of adjusting the round platform, be provided with first slider on the reamer, first slider sliding connection is in first spout, the slip direction of first slider is on a parallel with the length direction of first spout, the second spout has been seted up on the drill bit, be provided with the second slider on the reamer, second slider sliding connection is in the second spout, the slip direction of second slider slides towards the axis of drilling rod.
Through adopting above-mentioned technical scheme, the reamer passes through first slider sliding connection on adjusting the round platform to make when upwards sliding adjustment round platform, can drive the reamer and withdraw, the reamer passes through second slider sliding connection at the top of drill bit, thereby avoided the reamer to follow the possibility of adjusting round platform upward movement.
Optionally, the regulating part comprises a regulating rod arranged on the drilling machine, the regulating rod is positioned between the drill rod and the sleeve, the end part of the regulating rod is connected with the regulating round table, and the drilling machine is provided with a sliding part for sliding the regulating rod.
By adopting the technical scheme, the adjusting rod is moved, and the adjusting rod drives the adjusting round table to move up and down, so that the reamer is conveniently adjusted.
Optionally, set up the power arm that is used for driving the drilling rod pivoted on the rig, be provided with the go-between on the power arm, the go-between is established on the drilling rod along the length direction slip cap of drilling rod, the spread groove has been seted up on the go-between, the tip of adjusting the pole is provided with the solid fixed ring, gu fixed ring sliding connection is in the spread groove, the slider is including setting up the pneumatic cylinder on the power arm, the piston rod and the spread ring of pneumatic cylinder are connected.
Through adopting above-mentioned technical scheme, adjust the pole and follow the drilling rod and rotate for the solid fixed ring slides in the spread groove, when removing the regulation platform, starts the pneumatic cylinder and receive and releases the telescopic link, thereby drives the go-between and reciprocates, and the go-between drives the pole and reciprocates, thereby has realized the regulation to the position of adjusting the round platform.
Optionally, a connecting cylinder is arranged on the power arm, and the top of the sleeve is detachably connected to the connecting cylinder.
Through adopting above-mentioned technical scheme, the sleeve pipe can dismantle the connection on the connecting cylinder to make the sleeve pipe can follow, the decline of power wall descends, so that the sleeve pipe is along with boring in the anchor eye of lowering down.
Optionally, the top of sheathed tube is provided with the connection outer edge, wear to be equipped with fixing bolt on the connection outer edge, fixing bolt threaded connection is on the connecting cylinder.
Through adopting above-mentioned technical scheme, fixing bolt passes and connects outer edge and connecting cylinder threaded connection to realized the detachable connection between sleeve pipe and the power arm, in order to be convenient for to the sheathed tube use.
Optionally, the cover is equipped with the protection casing on the drilling rod, the tip and the drill bit of protection casing are connected, adjust the round platform and be located the protection casing, the external diameter of protection casing is less than the internal diameter of cover pipe, set up the groove of passing through that is used for supplying the reamer roll-off on the lateral wall of protection casing.
Through adopting above-mentioned technical scheme, the protection casing has prevented that outside earth detritus from entering into the condition in the protection casing to be favorable to adjusting the removal of round platform and reamer.
In a second aspect, the present application provides a construction method for forming a hole in an anchor rod, which adopts the following technical scheme:
the construction method of the anchor rod pore-forming uses the anchor rod pore-forming device, also include;
s1: positioning the hole positions of the drill holes and marking;
s2: moving a drilling machine to a marked drilling hole position, mounting a sleeve on the drilling machine, positioning a drill bit and a reaming cutter outside the sleeve, sliding the reaming cutter to prop open the reaming cutter, starting the drilling machine to drill holes, lowering the sleeve into an anchor hole while drilling, removing the sleeve from the drilling machine after the drilling is completed, sliding the reaming cutter to retract the reaming cutter, lifting a drill rod upwards, lifting the drill rod and the drill bit to lift the anchor hole, and keeping the sleeve in the anchor hole;
s3: clearing the anchor holes;
s4: grouting the anchor holes;
s5: the anchor rod is inserted into the anchor hole immediately after grouting is completed.
Optionally, during grouting, the grouting pipe is inserted into the sleeve at a position 10-20 cm away from the bottom of the anchor hole, grouting is started, the grouting pipe is pulled out slowly at a constant speed along with cement mortar injection until the sleeve is fully filled, the grouting pipe is inserted into the top of the sleeve, the top of the sleeve is sealed, grouting in the sleeve is continued until the cement mortar between the outer side wall of the sleeve and the anchor hole is discharged out of the anchor hole.
By adopting the technical scheme, during grouting, grouting is firstly performed from the inside of the sleeve, cement mortar is extruded between the sleeve and the anchor hole, and then the anchor rod reinforcing steel bar is inserted into the sleeve, so that the influence of hole wall collapse on grouting is further reduced, and the quality of anchor rod formation is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the casing is arranged on the drilling machine, the drilling rod is sleeved in the casing, the drill bit and the reaming cutter are positioned outside the casing, the reaming cutter is moved out and spread through the adjusting component, the drilling machine is started to rotate the drilling rod, the drilling rod drives the drill bit to rotate, the drill bit drills small holes firstly, the hole diameter is enlarged to a required diameter through the reaming cutter spread at the rear, so that an anchor hole is formed on the ground, the casing moves downwards along with the drilling rod in the process of forming the anchor hole, the casing is lowered while drilling, after the anchor hole is drilled to a required depth, the reaming cutter is moved back, the casing is separated from the drilling machine, the drill bit is lifted out of the anchor hole, the casing is left in the anchor hole, the side wall of the anchor hole is supported through the casing, so that the influence of soft soil layer on drilling, follow-up hole cleaning and other operations is avoided, meanwhile, the casing is synchronously penetrated into the anchor hole when following the drilling, and collapse of the wall in the drilling process is reduced;
2. when grouting, grouting is firstly performed from the inside of the sleeve, cement mortar is extruded between the sleeve and the anchor hole, and then the anchor rod reinforcing steel bar is inserted into the sleeve, so that the influence of hole wall collapse on grouting is further reduced, and the quality of anchor rod formation is improved.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a cross-sectional view of a drill rod according to an embodiment of the present application.
Fig. 3 is an enlarged schematic view of the structure of the portion a in fig. 2.
Fig. 4 is an enlarged schematic view of the structure of the portion B in fig. 2.
Reference numerals illustrate: 1. a drilling machine; 2. a drill rod; 3. a drill bit; 4. a reaming cutter; 5. a sleeve; 6. adjusting the round table; 7. a first chute; 8. a first slider; 9. a second chute; 10. a second slider; 11. an adjusting rod; 12. a power arm; 121. a guide plate; 122. a mounting plate; 123. a guide groove; 124. a first hydraulic motor; 125. a second hydraulic motor; 126. a screw rod; 13. a connecting ring; 14. a connecting groove; 15. a fixing ring; 16. a hydraulic cylinder; 17. a connecting cylinder; 18. connecting the outer edges; 19. a fixing bolt; 20. a protective cover; 21. a helical blade; 22. a spring; 23. and a communication groove.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses an anchor rod pore-forming device. Referring to fig. 1 and 2, the anchor rod hole forming device comprises a drilling machine 1, a drill rod 2 and a drill bit 3, wherein in the embodiment of the application, the drilling machine 1 is a spiral drilling machine, and a power arm 12 for driving the drill rod 2 to rotate is fixedly connected to a hydraulic arm of the drilling machine 1. The power arm 12 comprises a guide plate 121 and a mounting plate 122, the guide plate 121 is mounted at the end part of the hydraulic arm of the drilling machine 1 along a vertical direction through bolts, a guide groove 123 is formed in the guide plate 121, the guide groove 123 is formed along the length direction of the guide plate 121, and the mounting plate 122 is slidably connected in the guide groove 123; the guide plate 121 is rotatably connected with a lead screw 126, the rotation axis of the lead screw 126 is parallel to the length direction of the guide plate 121, a first hydraulic motor 124 is fixed on the top of the guide plate 121 through bolts, an output shaft of the first hydraulic motor 124 is connected with the lead screw 126, and the lead screw 126 is threaded on the mounting plate 122. The drilling rod 2 rotates to be connected on mounting panel 122, and the length direction of drilling rod 2 is on a parallel with the length direction of deflector 121, and the last bolt fastening of mounting panel 122 has second hydraulic motor 125, and the output shaft of second hydraulic motor 125 is connected with drilling rod 2, and drill bit 3 fixed connection is kept away from the one end of mounting panel 122 at drilling rod 2, and integrated into one piece has helical blade 21 on the drilling rod 2 periphery wall.
The drilling machine 1 is moved to the calibrated position of the anchor hole, the guide plate 121 is vertically placed on the ground, the first hydraulic motor 124 and the second hydraulic motor 125 are started again, the mounting plate 122 is driven to drive the drill bit 3 to move downwards while the drill rod 2 is rotated so as to drill the anchor hole, and in the process of forming the anchor hole, the guide plate 121 has a guide effect on the movement of the drill rod 2, so that the perpendicularity of the anchor hole is maintained, and the forming quality of the anchor hole is improved.
Referring to fig. 1 and 2, a plurality of reamer blades 4 are uniformly distributed in the circumferential direction of the drill rod 2, in the embodiment of the present application, four reamer blades 4 are provided, and in other embodiments, a different number of reamer blades 4 may be provided; the side wall of the edge of the reamer 4 is embedded with a diamond sheet to enhance the cutting ability of the rock. The reamer 4 slides towards the direction close to or far away from the central axis of the drill rod 2, the reamer 4 is positioned at the end part of the drill rod 2 close to the drill bit 3, and an adjusting component for adjusting the position of the reamer 4 is arranged on the drill rod 2; the drilling machine 1 is connected with a sleeve 5, the sleeve 5 is sleeved on the drill rod 2, the diameter of the sleeve 5 is larger than that of the drill rod 2, the diameter of the drill bit 3 is smaller than that of the sleeve 5, when the reamer 4 is far away from the position of the central axis of the drill rod 2, the diameter of an outer ring formed by the reamer 4 is larger than that of the sleeve 5, and when the reamer 4 is located near the position of the central axis of the drill rod 2, the diameter of the outer ring formed by the reamer 4 is smaller than that of the sleeve 5.
The casing 5 is arranged on the drilling machine 1, the drill rod 2 is sleeved in the casing 5, the drill bit 3 and the reamer 4 are positioned outside the casing 5, the reamer 4 is moved out to be spread, the drilling machine 1 is started to rotate the drill rod 2, the drill rod 2 drives the drill bit 3 to rotate, the drill bit 3 drills small holes first, and then the hole diameter is enlarged to a required diameter through the reamer 4 spread at the rear, so that an anchor hole is formed on the ground; during the process of forming the anchor hole, the sleeve 5 moves downwards along with the drill rod 2, so that the sleeve 5 is lowered while drilling, when the anchor hole is drilled to a required depth, the reamer 4 is moved back, the sleeve 5 is separated from the drilling machine 1, the drill bit 3 is lifted out of the anchor hole, the sleeve 5 is left in the anchor hole, and the sleeve 5 supports the anchor hole wall, so that the possibility of collapse of the side wall of the anchor hole is reduced.
Referring to fig. 2 and 3, the reamer 4 is obliquely arranged, and the distance from the end of the reamer 4, which is close to the drill bit 3, to the central axis of the drill rod 2 is smaller than the distance from the end of the reamer 4, which is far away from the drill bit 3, to the central axis of the drill rod 2; the diameter of the drill rod 2 is smaller than that of the top end face of the drill bit 3, a second chute 9 is formed in the top end face of the drill bit 3, the length direction of the second chute 9 is perpendicular to the central axis of the drill rod 2, and the second chute 9 is a T-shaped groove; the bottom welding of reamer 4 is fixed with the second slider 10 with second spout 9 adaptation, and second slider 10 sliding connection is in second spout 9, and the slip direction of second slider 10 slides towards the axis of drilling rod 2. A spring 22 is arranged in the second sliding groove 9, one end of the spring 22 is abutted against the second sliding block 10, the other end of the spring 22 is abutted against the end part of the second sliding groove 9, the spring 22 is in a compressed state, and the spring 22 drives the second sliding block 10 to move towards the central axis of the drill rod 2 so as to facilitate the large reaming movement back.
Referring to fig. 2 and 3, the adjusting assembly comprises an adjusting round table 6 which is sleeved on the drill rod 2 in a sliding manner, the adjusting round table 6 slides along the length direction of the drill rod 2, the diameter of one end, close to the drill bit 3, of the adjusting round table 6 is smaller than that of one end, far away from the drill bit 3, of the adjusting round table 6, the adjusting round table 6 is located between the reamer 4 and the drill rod 2, and the inner wall of the reamer 4 is slidably connected to the side wall of the adjusting round table 6. One side of the reaming cutter 4, which is close to the drill rod 2, is cut into an inclined plane, the inclined plane is in butt joint with the side wall of the adjusting round table 6, a first chute 7 is formed in the side wall of the adjusting round table 6, the first chute 7 is a T-shaped chute, and the length direction of the first chute 7 is parallel to the direction of a bus where the first chute 7 of the adjusting round table 6 is located; the inclined surface of the reaming cutter 4 is fixedly welded with a first sliding block 8 which is matched with the first sliding groove 7, the first sliding block 8 is slidably connected in the first sliding groove 7, and the sliding direction of the first sliding block 8 is parallel to the length direction of the first sliding groove 7.
Referring to fig. 2 and 3, the drilling machine 1 is mounted with an adjusting member for driving the adjusting table 6 to slide. The adjusting piece comprises two adjusting rods 11 connected to the mounting plate 122, the two adjusting rods 11 are symmetrically arranged on two sides of the drill rod 2, the adjusting rods 11 are located between the drill rod 2 and the sleeve 5, the end portions of the adjusting rods 11 are welded and fixed with the top of the adjusting round table 6, the adjusting rods 11 are arranged on the spiral blades 21 in a penetrating mode, and the drilling machine 1 is provided with sliding pieces for sliding the adjusting rods 11.
Referring to fig. 2 and 3, a protection cover 20 is sleeved on the drill rod 2, the bottom end of the protection cover 20 is fixedly connected with the top of the drill bit 3, the adjusting circular table 6 is positioned in the protection cover 20, the height of the protection cover 20 is larger than that of the adjusting circular table 6, the outer diameter of the protection cover 20 is smaller than the inner diameter of the sleeve 5, a through groove for allowing the reamer 4 to slide out is formed in the side wall of the protection cover 20, the adjusting rod 11 penetrates through the protection cover 20 and is connected with the adjusting circular table 6, the helical blades 21 extend to the top of the protection cover 20, a gap exists between the upper side of the protection cover 20 and the protection cover 20, and part of the helical blades 21 expose the sleeve 5 so that rock fragments can be discharged through the helical blades 21.
The round platform 6 is adjusted in the downward sliding, adjust round platform 6 drive butt reamer 4 on adjusting round platform 6 lateral wall towards keeping away from the direction slip of drilling rod 2 axis, thereby make reamer 4 expansion, and adjust round platform 6 play the effect of support to reamer 4, so as to the reaming of anchor eye, after drilling is accomplished, slide upward and adjust round platform 6, adjust round platform 6 and drive reamer 4 of connecting on adjusting round platform 6 lateral wall and withdraw, simultaneously spring 22 assists promotion reamer 4 moves back, thereby the expansion and the withdrawal of reamer 4 have been realized, in order to shift out drill bit 3 and reamer 4 from sleeve pipe 5.
Referring to fig. 2 and 4, the sliding member includes two hydraulic cylinders 16 fixedly installed at the bottom of the installation plate 122, the drill rod 2 is located between the two hydraulic cylinders 16, the piston rods of the two hydraulic cylinders 16 are fixedly connected with a connecting ring 13 together, the connecting ring 13 is sleeved on the drill rod 2, a connecting groove 14 is formed in the inner side wall of the connecting ring 13, the end parts of the two adjusting rods 11 are fixedly welded with a fixing ring 15 together, the fixing ring 15 is sleeved on the drill rod 2, the fixing ring 15 is slidably connected in the connecting groove 14, and the side walls of the upper end and the lower end of the fixing ring 15 are all in butt joint with the side walls of the connecting groove 14. The hydraulic cylinder 16 is started to retract the telescopic rod, so that the connecting ring 13 is driven to move up and down, and the connecting ring 13 drives the adjusting rod 11 to slide up and down, so that the position of the adjusting circular table 6 is adjusted.
Referring to fig. 2 and 3, the bottom of the mounting plate 122 is fixedly welded with a connecting cylinder 17, the drill rod 2 is positioned in the connecting cylinder 17, the top of the sleeve 5 is detachably connected to the connecting cylinder 17, and the side wall of the connecting cylinder 17 is uniformly distributed with communication grooves 23 in the circumferential direction so as to facilitate the discharge of excessive rock debris. The top integrated into one piece of sleeve pipe 5 has a connection outer edge 18, and connection outer edge 18 and the bottom butt of connecting cylinder 17 wear to be equipped with fixing bolt 19 on the connection outer edge 18, and fixing bolt 19 threaded connection is on connecting cylinder 17 and is fixed through the nut connection.
The implementation principle of the anchor rod hole forming device in the embodiment of the application is as follows: the casing pipe 5 is arranged on the drilling machine 1, the drill rod 2 is sleeved in the casing pipe 5, the drill bit 3 and the reaming cutter 4 are positioned outside the casing pipe 5, and the hydraulic cylinder 16 is adjusted to extend out of the piston rod to move the reaming cutter 4 out for opening; starting the drilling machine 1 to rotate the drill rod 2, driving the drill bit 3 to rotate by the drill rod 2, drilling a small hole by the drill bit 3, and expanding the hole diameter to a required diameter by a reaming cutter 4 propped at the rear, so that an anchor hole is formed on the ground; during the process of forming the anchor hole, the casing 5 moves downwards along with the drill rod 2, so that the casing 5 is lowered while drilling; after the anchor hole has been drilled to the desired depth, the reamer 4 is moved back and the casing 5 is separated from the drill 1, the drill bit 3 is lifted out of the anchor hole, and the casing 5 is left in the anchor hole.
The embodiment of the application discloses a construction method for anchor rod hole forming, referring to fig. 1 and 2, the construction method for anchor rod hole forming uses an anchor rod hole forming device and further comprises the following steps of;
s1: positioning the hole positions of the drill holes and marking;
s2: moving the drilling machine 1 to a marked drilling hole position, installing the sleeve 5 on the drilling machine 1, positioning the drill bit 3 and the reamer 4 outside the sleeve 5, sliding the reamer 4 to prop open the reamer 4, starting the drilling machine 1 to drill, lowering the sleeve 5 into an anchor hole while drilling, removing the sleeve 5 from the drilling machine 1 after drilling, sliding the reamer 4 to retract the reamer 4, lifting the drill rod 2 upwards, lifting the drill rod 2 and the drill bit 3 out of the anchor hole, and keeping the sleeve 5 in the anchor hole;
s3: clearing the anchor holes;
s4: grouting the anchor holes;
s5: the anchor rod is inserted into the anchor hole immediately after grouting is completed.
When grouting, the grouting pipe is inserted into the sleeve 5 at a position 10-20 cm away from the bottom of the anchor hole, grouting is started, the grouting pipe is pulled out slowly at a constant speed along with the injection of cement mortar until the sleeve 5 is fully filled, the grouting pipe is inserted into the top of the sleeve 5, the top of the sleeve 5 is closed, grouting is continued into the sleeve 5 until the cement mortar between the outer side wall of the sleeve 5 and the anchor hole is discharged out of the anchor hole. During grouting, grouting is firstly performed from the inside of the sleeve 5, cement mortar is extruded between the sleeve 5 and the anchor hole, and then the anchor rod reinforcing steel bar is inserted into the sleeve 5, so that the influence of hole wall collapse on grouting is further reduced, and the quality of anchor rod formation is improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The utility model provides an anchor rod pore-forming device, includes rig (1), drilling rod (2) and drill bit (3), its characterized in that: the circumference equipartition of drilling rod (2) is provided with a plurality of reamer (4), and is a plurality of reamer (4) all slide towards the direction that is close to or keeps away from drilling rod (2) axis, be provided with the adjusting part that is used for adjusting reamer (4) position on drilling rod (2), reamer (4) are close to drill bit (3) setting, can dismantle on rig (1) and be connected with sleeve pipe (5), sleeve pipe (5) cover is established on drilling rod (2), the diameter of sleeve pipe (5) is greater than the diameter of drilling rod (2), the diameter of drill bit (3) is less than the diameter of sleeve pipe (5), works as when the position of drilling rod (2) axis is kept away from to reamer (4), the outer lane diameter that reamer (4) formed is greater than the diameter of sleeve pipe (5), works as when reamer (4) are located the position that is close to drilling rod (2) axis, the outer lane diameter that reamer (4) formed is less than the diameter of sleeve pipe (5).
2. A roof bolt hole forming apparatus according to claim 1, wherein: the reamer (4) slope sets up, reamer (4) are close to the one end of drill bit (3) and are less than reamer (4) and keep away from the one end of drill bit (3) to the distance of drill bit (2) axis, adjusting part includes that the slip cap is established on drill bit (2) adjusts round platform (6), adjust round platform (6) along the length direction slip of drill bit (2), adjust round platform (6) and be less than the diameter of keeping away from drill bit (3) one end near the diameter of drill bit (3) one end, adjust round platform (6) and be located between reamer (4) and drill bit (2), the inner wall sliding connection of reamer (4) is on adjusting round platform (6) lateral wall, be provided with on rig (1) and be used for driving the gliding regulating part of adjusting round platform (6).
3. A roof bolt hole forming apparatus according to claim 2, wherein: the utility model discloses a drilling machine, including boring cutter (4), first spout (7) have been seted up on the lateral wall of adjusting round platform (6), the length direction of first spout (7) is on a parallel with the busbar orientation that first spout (7) of adjusting round platform (6) are located, be provided with first slider (8) on reamer (4), first slider (8) sliding connection is in first spout (7), the length direction that the slip direction of first slider (8) is on a parallel with first spout (7), second spout (9) have been seted up on drill bit (3), be provided with second slider (10) on reamer (4), second slider (10) sliding connection is in second spout (9), the slip direction of second slider (10) is towards the axis slip of drilling rod (2).
4. A roof bolt hole forming apparatus according to claim 2, wherein: the adjusting piece comprises an adjusting rod (11) arranged on the drilling machine (1), the adjusting rod (11) is located between the drill rod (2) and the sleeve (5), the end part of the adjusting rod (11) is connected with the adjusting round table (6), and a sliding piece for sliding the adjusting rod (11) is arranged on the drilling machine (1).
5. The rock bolt hole forming apparatus according to claim 4, wherein: the drilling machine is characterized in that a power arm (12) for driving the drill rod (2) to rotate is arranged on the drilling machine (1), a connecting ring (13) is arranged on the power arm (12), the connecting ring (13) is slidably sleeved on the drill rod (2) along the length direction of the drill rod (2), a connecting groove (14) is formed in the connecting ring (13), a fixing ring (15) is arranged at the end part of the adjusting rod (11), the fixing ring (15) is slidably connected in the connecting groove (14), and the sliding piece comprises a hydraulic cylinder (16) arranged on the power arm (12), and a piston rod of the hydraulic cylinder (16) is connected with the connecting ring (13).
6. The rock bolt hole forming apparatus according to claim 5, wherein: the power arm (12) is provided with a connecting cylinder (17), and the top of the sleeve (5) is detachably connected to the connecting cylinder (17).
7. The rock bolt hole forming apparatus according to claim 6, wherein: the top of sleeve pipe (5) is provided with and connects outer edge (18), wear to be equipped with fixing bolt (19) on connecting outer edge (18), fixing bolt (19) threaded connection is on connecting cylinder (17).
8. A roof bolt hole forming apparatus according to claim 2, wherein: the drill rod (2) is sleeved with a protective cover (20), the end part of the protective cover (20) is connected with a drill bit (3), the adjusting round table (6) is located in the protective cover (20), the outer diameter of the protective cover (20) is smaller than the inner diameter of the sleeve (5), and a through groove for a reamer (4) to slide out is formed in the side wall of the protective cover (20).
9. A construction method for forming holes of an anchor rod is characterized in that: use of an anchor rod hole forming device as claimed in any one of claims 1 to 8, further comprising;
s1: positioning the hole positions of the drill holes and marking;
s2: moving the drilling machine (1) to a marked drilling hole position, installing the sleeve (5) on the drilling machine (1), arranging the drill bit (3) and the reamer (4) outside the sleeve (5), sliding the reamer (4) to prop up the reamer (4), starting the drilling machine (1) to drill, lowering the sleeve (5) into an anchor hole while drilling, after the drilling is completed, detaching the sleeve (5) from the drilling machine (1), sliding the reamer (4) to retract the reamer (4), lifting the drill rod (2) upwards, lifting the drill rod (2) and the drill bit (3) out of the anchor hole, and keeping the sleeve (5) in the anchor hole;
s3: clearing the anchor holes;
s4: grouting the anchor holes;
s5: the anchor rod is inserted into the anchor hole immediately after grouting is completed.
10. A roof bolt hole forming apparatus according to claim 9, wherein: during grouting, the grouting pipe is inserted into the sleeve (5) at a position 10-20 cm away from the bottom of the anchor hole, grouting is started, the grouting pipe is pulled out slowly at a constant speed along with the injection of cement mortar until the sleeve (5) is fully filled, the grouting pipe is inserted into the top of the sleeve (5), the top of the sleeve (5) is sealed, grouting is continued into the sleeve (5) until the cement mortar between the outer side wall of the sleeve (5) and the anchor hole is discharged out of the anchor hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310103049.9A CN116163782A (en) | 2023-02-03 | 2023-02-03 | Anchor rod pore-forming device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310103049.9A CN116163782A (en) | 2023-02-03 | 2023-02-03 | Anchor rod pore-forming device and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116163782A true CN116163782A (en) | 2023-05-26 |
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ID=86414333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310103049.9A Pending CN116163782A (en) | 2023-02-03 | 2023-02-03 | Anchor rod pore-forming device and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116163782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116733373A (en) * | 2023-08-11 | 2023-09-12 | 中昌泰(北京)建设集团有限公司 | Building anchor rod construction device |
-
2023
- 2023-02-03 CN CN202310103049.9A patent/CN116163782A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116733373A (en) * | 2023-08-11 | 2023-09-12 | 中昌泰(北京)建设集团有限公司 | Building anchor rod construction device |
| CN116733373B (en) * | 2023-08-11 | 2023-11-21 | 中昌泰(北京)建设集团有限公司 | Building anchor rod construction device |
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