CN110056379B

CN110056379B - Anchoring method and anchoring device

Info

Publication number: CN110056379B
Application number: CN201910350901.6A
Authority: CN
Inventors: 周艳君
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2021-03-23
Anticipated expiration: 2039-04-28
Also published as: CN110056379A; CN112963182B; CN112963182A

Abstract

The invention relates to an anchoring method, which can be used for the construction of tensile anchoring members of various anchor rods, anchor cable anchors, uplift piles and the like, wherein an anchoring head is placed on a position to be anchored through an anchor hole (pile hole), an anchoring accessory and a grouting pipe are connected, a driving device is started, a plurality of drill bits are drilled into the direction vertical to a rock-soil body, a part of the drill bits are drilled into the surrounding rock-soil body, and the resources of the compression resistance and the shear resistance of the rock-soil body around the anchor hole (pile hole) are fully utilized through the pin effect of the drill bits. Compared with the traditional anchoring method, the anchoring head used as the anchoring part can obtain larger tension more quickly, save a large amount of anchoring part cost, effectively avoid the problems of slippage, failure and the like between the anchoring part and the surrounding rock-soil body caused by the traditional anchoring method, improve the efficiency of the construction work of the anchoring part, improve the reliability and the applicability of the anchoring part and reduce the risk of engineering caused by the failure of the anchoring part. Compared with chemical anchoring methods, the method does not cause pollution to geological environment and underground water environment.

Description

Anchoring method and anchoring device

Technical Field

The invention relates to the technical field of tensile members in geotechnical engineering, in particular to an anchoring method and an anchoring device.

Background

In the era of urban high-speed development at present, tensile members (anchor rods, anchor cables, uplift piles and the like) are used in great quantity in engineering construction such as geotechnical engineering construction, geological disaster treatment, emergency rescue and the like, and the traditional mechanical tensile member is placed in the rock and soil and achieves the aim of anchoring through the friction force between the tensile member and the rock and soil body by utilizing a pressurizing, grouting or chemical cement method.

The above prior art solutions have the following drawbacks: in current geotechnical engineering construction, geological disaster management, emergency rescue and environmental protection work, the traditional anchoring method of the tensile member has the defects that the anchoring effect is invalid due to factors such as inaccuracy of geotechnical parameters, design calculation, construction, change of geotechnical bodies and the like, the time for the tensile member to obtain effective tension is long, and chemical substances enter the ground and then cause harm to the environment, so that improvement is needed.

Disclosure of Invention

In view of the disadvantages of the prior art, a first object of the present invention is to provide an anchoring device having advantages of rapidly obtaining a tensile force and improving a tensile capability of a tensile member.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an anchoring device, includes the anchor head, be provided with a plurality of drill bit in the anchor head, the overhead confession that is provided with of anchor the through-hole that the drill bit stretches out, the overhead drive arrangement who drives a plurality of drill bit synchronous rotation and bore into the ground body of installing of anchor, the overhead restriction that is provided with of anchor the drill bit stretches out the restriction of through-hole, works as the drive arrangement drive the drill bit rotates and bores when the ground body, the drill bit stretches out the through-hole.

Through adopting above-mentioned technical scheme, internal through drive arrangement drive drill bit drilling ground, the drill bit part is stayed in the ground body, and the drill bit forms the effect of pin between anchor head and ground body to increase the joint strength between anchor body and the ground layer, strengthened the intensity that bears the tension of ground body, make the difficult appearance of placing department of anchor head not hard up. When the drill bit is not in operation, place the drill bit in anchor head through the restriction piece, reduced the volume that the drill bit took anchor head periphery, made things convenient for the transport of anchor head, small anchor head is when putting into the anchor hole, is difficult for colliding with the pore wall in anchor hole, is favorable to putting into appointed position with the anchor head.

The invention is further configured to: including the elastic component that driver bit stretches out the through-hole and driver bit pivoted drive assembly, the restriction spare is including setting up the relief valve on the through-hole pore wall, the relief valve with the front end butt of drill bit.

Through adopting above-mentioned technical scheme, when rotating and stretching out the through-hole through at the drill bit, the drill bit bores to the relief valve, and the elastic component exerts jacking force to the drill bit, and drive assembly exerts the rotatory power around drill bit center pin rotation to the drill bit, and the drill bit that has certain acceleration creeps into the ground body after opening the relief valve top for when the drill bit is not used, relief valve restriction drill bit stretches out outside the through-hole, makes things convenient for the installation and the transport of anchor head.

The invention is further configured to: the driving assembly comprises a driving piece and a movable sleeve, the movable sleeve is rotatably connected with the driving piece, the drill bit is placed in the movable sleeve and is slidably connected with the movable sleeve, the elastic piece is placed between the tail end of the drill bit and the movable sleeve, and when the front end of the drill bit is abutted to the safety valve, the tail end of the drill bit is abutted to the elastic piece.

Through adopting above-mentioned technical scheme, through placing the drill bit in the movable sleeve, the movable sleeve drives the drill bit under the driving piece drive and realizes coaxial rotation, the movable sleeve provides for the drill bit around drill bit axial pivoted power, cooperation elastic component exerts the jacking force to the drill bit when the drill bit rotates, the drill bit drills open the relief valve when rotating, further outside motion creeps into the ground body, the effect of formation bolt between cooperation anchor head and the ground body, utilize resistance to compression, the resistance to shear resource of the ground body from this, the stretching resistance of anchor rod has been improved.

The invention is further configured to: the driving piece comprises driving bevel gears, driven bevel gears matched with the number of the drill bits and a driving motor used for driving the driving bevel gears to rotate, wherein the rotating shaft of the driving motor is coaxial with the driving bevel gears, each driven bevel gear is meshed with the driving bevel gears, each movable sleeve corresponds to one driven bevel gear fixedly connected with the driving bevel gears, and the movable sleeve is coaxial with the driven bevel gears.

Through adopting above-mentioned technical scheme, through the interlock of initiative helical gear and driven helical gear, driving motor drive initiative helical gear rotates and indirectly drives the movable sleeve and rotates, can control the length that the drill bit stretches into the ground body through accuse driving motor's the number of turns of rotation and be in suitable length for the drill bit reaches better value with the cooperation of anchor head, and the drill bit is difficult for taking place the rupture when the atress. Teeth on the driving helical gear and the driven helical gear are inclined by 45 degrees, so that the driving helical gear shaft is perpendicular to the axis of the drill bit in a non-coplanar manner, a plurality of driven helical gears can be installed on the same cross section of the driving helical gear, a plurality of drill bits can be synchronously extended out and drilled into a rock-soil body through the rotation of the driving helical gear, the drill bits are drilled into the rock-soil body from a position parallel to the cross section diameter of the anchoring head at a certain distance, so that the actual shearing-resistant area of the drill bits is larger than the cross section area of the drill bits, the connection strength between the whole body of the plurality of drill bits and the rock-soil.

The invention is further configured to: and a sand-proof cover for opening and closing the through hole is arranged on the anchoring head.

Through adopting above-mentioned technical scheme, do not work at the drill bit through the sand prevention lid, the sand prevention lid shelters from on the through-hole, when installation anchor head, hard particulate matter such as earth and quartz sand is difficult for entering into the inside of anchor head from the through-hole, the difficult card of particulate matter is in the inslot between two adjacent teeth on driven helical gear and the drive helical gear, when driving motor drive helical gear and driven helical gear sting, cause the unable meshing of drive helical gear and driven helical gear, the tooth of drive helical gear and driven helical gear is worn and torn, further cause driving motor's damage, the drill bit can't stretch out the through-hole, influence the anchor effect of anchor head.

The invention is further configured to: one side of the sand-proof cover is movably connected with the anchoring head.

Through adopting above-mentioned technical scheme, through sand prevention lid and anchor head swing joint, the drill bit drills the sand prevention lid under the effect of the top thrust of elastic component, and then stretches out the through-hole. One end of the sand-proof cover is movably connected with the anchoring head, so that the sand-proof cover is not easy to lose when the anchoring head is manufactured, and the manufacturing cost is reduced.

The invention is further configured to: and the driven bevel gears are uniformly arranged around the circumference of the driving bevel gear.

Through adopting above-mentioned technical scheme, be circumference evenly distributed's drill bit through the setting for anchor all has the drill bit around to creep into the ground body, has increased the compressive area between drill bit and the ground body, thereby has improved the compressive capacity between drill bit and the ground body, has strengthened the tensile pulling force that the anchor head bore.

The invention is further configured to: the driving motor is detachably connected with the anchoring head.

Through adopting above-mentioned technical scheme, through can dismantling driving motor and anchor head to be connected, after with anchor head anchor on the geotechnical body, can retrieve driving motor and recycle, reduce driving motor's waste, practiced thrift engineering cost.

The invention is further configured to: the anchor head is provided with at least two clamping plates, the driving motor is provided with a clamping block, the clamping plates are provided with clamping grooves, when the driving motor rotates, the clamping blocks slide in the clamping grooves, the clamping blocks are clamped with the clamping grooves, a convex block or a groove is arranged on a rotating shaft of the driving motor in a protruding mode, an elastic pressing plate for limiting the rotation of the convex block or the groove is arranged on the anchor head towards the convex block or the groove, the pressing plate is abutted to the convex block or the groove, when the driving motor rotates forwards, the clamping blocks are clamped with the clamping grooves, and when the driving motor rotates backwards, the pressing plate is abutted to the convex block or the groove.

Through adopting above-mentioned technical scheme, the last pivot reversal of driving motor, because of the drill bit has already anchored with the ground body this moment for the initiative helical gear card is motionless, driving motor rotation this moment, and epaxial lug or recess of changeing appear the reversal along with the pivot, until lug or recess and clamp plate butt, the fixture block breaks away from the draw-in groove this moment, then alright take out driving motor from the anchor downthehole, carry out utilization once more, reduced construction engineering's cost.

A second object of the present invention is to provide an anchoring method having the advantage of improving the tensile strength of the anchoring head.

s1 drilling an anchoring hole;

s2 anchoring, specifically as follows:

placing the anchoring device into the anchoring hole, and driving a plurality of drill bits to drill the rock-soil body;

and S3 grouting.

By adopting the technical scheme, the method has the advantages that,

excavation anchor hole at the assigned position, put into the anchor hole with the anchor head, then open driving motor, the drill bit is under the effect of elastic component, the movable sleeve is pushed out to the front end of drill bit, the rotation of movable sleeve makes the drill bit obtain pivoted acceleration, the cooperation of movable sleeve and elastic component, make the drill bit bore relief valve and sand-proof lid, stretch out outside the anchor head from through-hole department, it is internal to bore into the ground, anchor with the ground body, after the anchor head is fixed with the ground body, the counter-rotation driving motor, then take out driving motor through the electric wire that pulls driving motor, then slip casting on the anchor hole, until the thick liquid floods whole anchor head. The drill bit capable of extending out laterally is arranged on the anchoring head, the drill bit drills into the rock-soil layer, the tensile strength of the anchoring head is improved, the connection strength between the anchoring head and the rock-soil body is increased by utilizing the pin effect of the drill bit, and the tensile strength of the anchoring body is enhanced.

In conclusion, the beneficial technical effects of the invention are as follows:

1. in driving device drive drill bit bored the ground body, the drill bit part was stayed in the ground body, and the drill bit forms the effect of pin between anchor head and ground body to increase the joint strength between anchor head and the ground layer, utilized the resistance to compression, the ability of shearing of ground body, make the department of placing of anchor head can not appear becoming flexible, sliding, increased tensile member's tensile ability. When the drill bit is not in operation, the drill bit is placed in the anchoring head through the limiting part, so that the volume of the drill bit occupying the periphery of the anchoring head is reduced, the carrying of the anchoring head is facilitated, the anchoring head with the reduced volume is not easy to contact with the hole wall of the anchoring hole when being placed in the anchoring hole, and the anchoring head is favorably placed in an appointed position;

2. when the drill bit does not work, the sand-proof cover is shielded on the through hole, when the anchoring head is installed, particulate matters such as soil and quartz sand are not easy to enter the anchoring head from the through hole, the particulate matters are not easy to be clamped in a groove between two adjacent teeth on the driven helical gear and the driving helical gear, when the driving helical gear and the driven helical gear are meshed by the driving motor, the driving helical gear and the driven helical gear cannot be meshed, the teeth of the driving helical gear and the driven helical gear are worn, the driving motor is further damaged, the drill bit cannot extend out of the through hole, and the anchoring effect of the anchoring head is influenced;

3. through can dismantling driving motor and anchor head to be connected, after with anchor head anchor on the ground body, can dismantle the motor and get off to recycle, reduce driving motor's waste, practiced thrift engineering cost.

Drawings

FIG. 1 is a schematic view of the relationship of a driving helical gear and a driven helical gear;

FIG. 2 is an enlarged schematic view of A of FIG. 1;

FIG. 3 is a schematic structural view of the present embodiment;

FIG. 4 is an enlarged schematic view of A in FIG. 3;

fig. 5 is a schematic view of the drill and the movable sleeve in this embodiment.

In the figure, 1, an anchoring head; 11. a through hole; 12. a safety valve; 13. a drill bit; 2. a drive device; 21. a drive assembly; 211. a drive member; 2111. a driving bevel gear; 2112. a driven helical gear; 2113. a drive motor; 212. a movable sleeve; 213. a limiting block; 22. an elastic member; 3. an anchor joint; 4. a sand-proof cover; 41. buckling blocks; 42. buckling the groove; 5. clamping a plate; 51. a card slot; 52. a fixing plate; 6. a clamping block; 7. a bump; 71. a first side surface; 72. a second side surface; 8. pressing a plate; 9. a tension spring; 10. and (4) grouting holes.

Detailed Description

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

Example 1:

referring to fig. 1, the anchoring device disclosed by the invention comprises an anchoring head 1, wherein a plurality of drill bits 13 are arranged in the anchoring head 1, through holes 11 for the drill bits 13 to extend out are formed in the anchoring head 1, a driving device 2 for driving the drill bits 13 to synchronously rotate and drill into rock and soil bodies is arranged on the anchoring head 1, and a limiting piece for limiting the drill bits 13 to extend out of the through holes 11 when the drill bits 13 are not in operation is arranged on the anchoring head 1.

The anchoring head 1 is circular hollow and is provided with an opening at the top end, an anchoring joint port 3 is formed on the side wall of the anchoring head 1 from the top end of the anchoring head 1 through the bottom end and is used for fixing an anchor rod or an anchor cable, and a grouting hole 10 is formed on the anchoring head 1 through the bottom end of the anchoring head 1. The through hole 11 is provided with an arc-shaped sand-proof cover 4 for closing the through hole 11, one side of the sand-proof cover 4 is hinged to the anchoring head 1, a buckling block 41 is formed on the sand-proof cover 4 in a protruding mode at one end, opposite to the hinged end of the anchoring head, of the sand-proof cover 4, and a buckling groove 42 which is matched with the buckling block 41 in an inserting mode is formed in the concave position of the outer wall of the sand-proof cover 4.

The driving device 2 comprises an elastic part 22 for driving the drill bit 13 to extend out of the through hole 11 and a driving assembly 21 for driving the drill bit 13 to rotate, the driving assembly 21 comprises a driving part 211 and a hollow cylindrical movable sleeve 212, the driving part 211 comprises a driving bevel gear 2111, a driven bevel gear 2112 and a driving motor 2113 for driving the driving bevel gear 2111 to rotate, the rotating shaft of the driving motor 2113 extends into the central shaft of the driving bevel gear 2111, and the rotating shaft of the driving motor 2113 is coaxial with the driving bevel gear 2111. The number of the driven helical gears 2112 corresponds to the number of the drills 13, and each driven helical gear 2112 meshes with the driving helical gear 2111. The driven bevel gears 2112 are uniformly distributed around the driving bevel gear 2111 in a circumferential manner. In this embodiment, there are four driven helical gears 2112, and the central axis of each driven helical gear 2112 and the central axis of the driving helical gear 2111 are distributed at 90 ° on the vertical plane. In other embodiments, the plurality of driven helical gears 2112 and the plurality of driving helical gears 2111 may be distributed in an axial linear manner. Each driven helical gear 2112 is fixedly connected with one movable sleeve 212 correspondingly.

Referring to fig. 1 and 2, the driving motor 2113 is detachably connected to the anchoring head 1, a protruding block 7 or a groove is fixed to a rotating shaft of the driving motor 2113, in this embodiment, the protruding block 7 is fixed to the rotating shaft, a pressing plate 8 facing the protruding block 7 is fixed to the inner side wall of the anchoring head 1, a telescopic spring 9 is fixedly connected between the pressing plate 8 and the inner side wall of the anchoring head 1, and the pressing plate 8 abuts against the protruding block 7. When the pressing plate 8 abuts against the bump 7, the rotation shaft of the driving motor 2113 stops rotating. The bump 7 has a triangular cross section, and the thickness of the bump 7 gradually increases from one of the vertices to the side opposite to the vertex. The bump 7 comprises a first side face 71 and a second side face 72, when the driving motor 2113 rotates forwards, the pressing plate 8 abuts against the first side face 71 of the bump 7, and when the driving motor 2113 rotates backwards, the pressing plate 8 abuts against the second side face 72 of the bump 7.

Referring to fig. 3 and 4, the internal fixation has two piece at least cardboard 5 on the inner wall of anchor head 1, driving motor 2113's side protrusion is formed with columniform fixture block 6, cardboard 5 sets up towards fixture block 6, cardboard 5 is fixed with rectangle and one side near fixture block 6's one end and is curved fixed plate 52, fixed plate 52 is curved one side and the laminating of driving motor 2113, the sunken curved draw-in groove 51 that has in one side of fixed plate 52 laminating motor, the one end of draw-in groove 51 sets up the entry that supplies fixture block 6 to get into, fixture block 6 is pegged graft with draw-in groove 51. When the driving motor 2113 rotates, the latch 6 slides in the latch groove 51. In this embodiment, there are two card boards 5, and the openings of the card slots 51 of the two card boards 5 are opposite.

When the driving motor 2113 rotates forward, the protrusion 7 abuts against the slot 51, and when the driving motor 2113 rotates backward, the pressing plate 8 abuts against the protrusion 7.

Referring to fig. 5, the movable sleeve 212 and the driven bevel gear 2112 are coaxial, one end of the movable sleeve 212 is open, the central angle subtended by the chord on the cross section of the drill bit 13 is 90 °, the section of the open end of the movable sleeve 212 is consistent with the cross section of the drill bit 13, the drill bit 13 is inserted in the movable sleeve 212, and the front end of the drill bit 13 is on the same side as the open end of the movable sleeve 212. The drill 13 is slidably connected to the movable sleeve 212, a circular cake-shaped restricting block 213 is fixed to the front end of the drill 13, and the restricting block 213 abuts against the opening end of the movable sleeve 212.

The elastic piece 22 is placed in the movable sleeve 212, the elastic piece 22 is fixedly connected between the bottom wall of the movable sleeve 212 and the tail end of the drill bit 13, and when the limiting piece limits the extension of the drill bit 13, the tail end of the drill bit 13 abuts against the elastic piece 22. In this embodiment, the elastic member 22 is a spring. The restricting member is a rectangular safety valve 12 fixed to the inner wall of the through hole 11, and the safety valve 12 abuts against the restricting block 213.

The working conditions and principles of the embodiment 1 are as follows:

the driving motor 2113 is started, the driving motor 2113 drives the driving bevel gear 2111 to rotate, the driving bevel gear 2111 drives the driven bevel gear 2112 to rotate so as to enable the movable sleeve 212 to rotate, the drill bit 13 and the movable sleeve 212 rotate coaxially, the safety valve 12 is ejected by the drill bit 13, the elastic piece 22 pushes the drill bit 13 outwards, and the drill bit 13 drills into the rock-soil body under the ejecting force of the elastic piece 22 and the rotation of the movable sleeve 212.

The driving motor 2113 is arranged to drive the drill bits 13 to synchronously drill into the rock-soil body, the drill bits 13 play a role of pins between the anchoring head 1 and the rock-soil body, so that the anchoring head 1 is fixed with the rock-soil body, the drill bits 13 extending out from the anchoring head 1 in the lateral direction enhance the connection strength of the anchoring head 1 and the rock-soil body, and the strength of bearing tension of the rock-soil body is increased.

When the drill bit 13 does not work, the safety valve 12 is abutted against the front end of the drill bit 13, so that the drill bit 13 is retracted in the movable sleeve 212, and when the anchoring head 1 is installed in the anchoring hole, the drill bit 13 is not easy to extend out of the through hole 11 and can cut workers. The drill bit 13 placed in the movable sleeve 212 reduces the space occupied by the anchoring head 1 outside the anchoring head 1, the size of the anchoring head 1 is small, the carrying of the anchoring head 1 is facilitated, the anchoring head 1 with small size is not prone to touching the side wall of the anchoring hole, and the anchoring head 1 is convenient to place in a specified position.

By arranging the sand-proof cover 4, sand in the anchoring hole is not easy to enter the anchoring head 1 from the through hole 11 in the installation process of the anchoring head 1 and is clamped in the grooves of the driving helical gear 2111 and the driven helical gear 2112, so that the meshing of the driving helical gear 2111 and the driven helical gear 2112 is affected, teeth on the driving helical gear 2111 and the driven helical gear 2112 are damaged, further, the connection part of the driving motor 2113 and the driving helical gear 2111 is blocked for a long time, and the driving motor 2113 is damaged.

Through the cooperation that sets up movable sleeve 212 and elastic component 22, drive drill bit 13 coaxial rotation through the movable sleeve 212 fixed with driven helical gear 2112, elastic component 22 exerts the thrust that pushes away from movable sleeve 212 to drill bit 13, the cooperation of elastic component 22 and movable sleeve 212 for drill bit 13 is at the pivoted in-process, under the effect of the thrust of elastic component 22, after boring relief valve 12, sand prevention lid 4, in boring into the ground body, because of there is great frictional force between drill bit 13 and the ground body, drill bit 13 is fixed in the ground body. The rotation of the drill bit 13 reduces the contact area and local pressure of the drill bit 13 with the rock-soil mass, and facilitates the extension of the drill bit 13 into the rock-soil mass.

Through being circumference evenly distributed with drill bit 13 for the atress of anchor head 1 is roughly evenly distributed, and the compressive area between drill bit 13 and the ground body is great, has strengthened the joint strength between anchor head 1 and the ground body, has strengthened the intensity that bears the tension of ground body.

Through can dismantle driving motor 2113 and anchor head 1 and be connected for after anchor head 1 anchors, the pivot reversal on the driving motor 2113, because of drill bit 13 has already anchored with the ground body this moment, make initiative helical gear 2111 block, driving motor 2113 rotation this moment, epaxial lug 7 of commentaries on classics appears along with the pivot reversal, until lug 7 and clamp plate 8 butt, fixture block 6 breaks away from draw-in groove 51 this moment, then alright take out driving motor 2113 from the anchor downthehole, carry out reuse, construction engineering's cost has been reduced.

Through the occlusion of the driving bevel gear 2111 and the driven bevel gear 2112, the driving bevel gear 2111 is driven to rotate by the driving motor 2113 to indirectly drive the movable sleeve 212 to rotate, the length of the drill bit 13 extending into the rock-soil body is controlled to be in a proper length through controlling the number of rotation turns of the driving motor 2113, and the drill bit 13 is not easy to break when stressed. When the drill bit 13 fixed with the rock-soil body takes out the driving motor 2113, the drill bit 13 limits the reverse rotation of the driving bevel gear 2111, so that the rotating shaft of the driving motor 2113 can be conveniently taken out of the driving bevel gear 2111.

Teeth on the driving bevel gear 2111 and the driven bevel gear 2112 are inclined at 45 degrees, so that the shaft of the driving bevel gear 2111 is not coplanar and vertical to the axis of the drill bit 13, a plurality of driven bevel gears 2112 can be installed on the same cross section of the driving bevel gear 2111, a plurality of drill bits 13 can be synchronously extended out and drilled into a rock-soil body through the rotation of the driving bevel gear 2111, and the drill bits 13 are drilled into the rock-soil body from a position parallel to the diameter of the cross section of the anchoring head 1 at a certain distance, so that the actual shearing-resistant area of the drill bits 13 is larger than the cross section area of the drill bits, the connection strength between the whole of the drill bits 13 and the rock-soil body is. The anchoring head 1 can be used as an environment-friendly construction part for protecting geological environment and underground water environment.

Example 2:

an anchoring method comprising the steps of:

s1 drilling an anchoring hole;

s2 anchoring, specifically as follows:

the grouting pipe is firstly inserted into the grouting hole 10, the anchor rod is fixed on the anchoring joint port 3, in other embodiments, the anchor rope can be fixed on the anchoring joint port 3, then the anchoring head 1 is placed into the anchoring hole, when the driving motor 2113 rotates, the fixture block 6 is clamped into the clamping groove 51, the driving motor 2113 drives the driving bevel gear 2111 to rotate, the driven bevel gear 2112 which is rotationally engaged with the driving bevel gear 2111 drives the movable sleeve 212 to rotate, and the drill bit 13 drills the safety valve 14 and drills the sand-proof cover out of the through hole 11 under the cooperation of the movable sleeve 212 and the elastic element 22, and further drills into the rock-soil body. Through setting up the side at anchor head 1 and stretching out drill bit 13, have frictional force between drill bit 13 and the ground body, strengthened the joint strength between anchor head 1 and the rock mass layer, and then strengthened the intensity that bears the tension of ground body.

And S3 grouting. High-pressure grouting is carried out in the grouting pipe, grout enters the head of the anchoring head 1 through the grouting hole 10, the grout submerges the anchoring head 1 from the head of the anchoring head 1 to the tail end of the anchoring head 1 gradually, in the process of grouting while the grouting pipe continuously withdraws from the anchoring hole 1 until the anchoring hole is completely filled with the grout, grouting is stopped, and the whole anchoring hole is filled with the grout, so that the whole anchoring work is finished.

Through in pouring into the first 1 of anchor with thick liquid from slip casting mouth 10 department, thick liquid from the head of the first 1 of anchor toward terminal filling for be full of the thick liquid between the head of the first 1 of anchor and the ground body, after the thick liquid solidifies, be connected firmly between the first 1 of anchor and the ground body, anchor head 1 is difficult for taking place not hard up.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. An anchoring device comprising an anchoring head (1), characterized in that: be provided with a plurality of drill bit (13) in anchor head (1), be provided with the confession on anchor head (1) through-hole (11) that drill bit (13) stretched out, install drive arrangement (2) that drive a plurality of drill bit (13) rotate in step and bore into the ground body on anchor head (1), be provided with the restriction on anchor head (1) drill bit (13) do not work the time stretching out the restriction piece of through-hole (11), work as drive arrangement (2) drive when drill bit (13) rotate and bore into the ground body, drill bit (13) stretch out through-hole (11), including drive drill bit (13) elastic component (22) and drive drill bit (13) pivoted drive assembly (21) that stretch out through-hole (11), drive assembly (21) include driving piece (211) and movable sleeve (212), movable sleeve (212) with driving piece (211) rotate and are connected, the drill bit (13) is placed in the movable sleeve (212), the drill bit (13) is connected with the movable sleeve (212) in a sliding mode, the elastic piece (22) is placed between the tail end of the drill bit (13) and the movable sleeve (212), the limiting piece comprises a safety valve (12) arranged on the wall of a through hole (11), when the front end of the drill bit (13) is abutted to the safety valve (12), the tail end of the drill bit (13) abuts against the elastic piece (22), and a grouting hole (10) is formed in the anchoring head (1) through the bottom end of the anchoring head (1).

2. An anchoring device according to claim 1, wherein: the safety valve (12) abuts against the front end of the drill bit (13).

3. An anchoring device according to claim 1, wherein: the driving piece (211) comprises a driving bevel gear (2111), driven bevel gears (2112) which are matched with the drill bit (13) in number and a driving motor (2113) for driving the driving bevel gears (2111) to rotate, a rotating shaft of the driving motor (2113) is coaxial with the driving bevel gears (2111), each driven bevel gear (2112) is meshed with the driving bevel gear (2111), each movable sleeve (212) is correspondingly and fixedly connected with one driven bevel gear (2112), and the movable sleeve (212) is coaxial with the driven bevel gears (2112).

4. An anchoring device according to claim 1 or 3, wherein: and the anchoring head (1) is provided with a sand-proof cover (4) for closing and opening the through hole (11).

5. An anchoring device according to claim 4, wherein: one side of the sand-proof cover (4) is movably connected with the anchoring head (1).

6. An anchoring device according to claim 3, wherein: the driven bevel gears (2112) are uniformly arranged around the circumference of the driving bevel gear (2111).

7. An anchoring device according to claim 3, wherein: the driving motor (2113) is detachably connected with the anchoring head (1).

8. An anchoring device according to claim 7, wherein: at least two clamping plates (5) are arranged on the anchoring head (1), a clamping block (6) is arranged on the driving motor (2113), a clamping groove (51) is arranged on each clamping plate (5), when the driving motor (2113) rotates, the fixture block (6) slides in the fixture groove (51), the clamping block (6) is clamped with the clamping groove (51), a convex block (7) or a groove is convexly arranged on a rotating shaft of the driving motor (2113), an elastic pressing plate (8) for limiting the rotation of the convex block (7) or the groove is arranged on the anchoring head (1) towards the convex block (7) or the groove, the pressing plate (8) is abutted against the convex block (7) or the groove, when the driving motor (2113) rotates forwards, the clamping block (6) is clamped with the clamping groove (51), when the driving motor (2113) rotates reversely, the pressing plate (8) is abutted against the bump (7) or the groove.

9. A method of anchoring an anchoring device according to any one of claims 1 to 8, wherein: the method comprises the following steps:

s1 drilling an anchoring hole;

s2 anchoring, specifically as follows:

the anchoring device is placed into the anchoring hole, and a plurality of drill bits (13) are driven to drill the rock-soil body;

and S3 grouting.