CN109026095B - Anchor rod hole construction process - Google Patents
Anchor rod hole construction process Download PDFInfo
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- CN109026095B CN109026095B CN201810713461.1A CN201810713461A CN109026095B CN 109026095 B CN109026095 B CN 109026095B CN 201810713461 A CN201810713461 A CN 201810713461A CN 109026095 B CN109026095 B CN 109026095B
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- sleeve
- drill bit
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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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a construction process of an anchor rod hole, belongs to the field of supporting engineering, and aims to realize the drilling of a soft foundation course; the vibrating compaction hole former comprises a Luoyang shovel, a sleeve is sleeved on the outer side of the Luoyang shovel, one end of the sleeve is fixedly connected with a vibroflot, and a drill bit is fixedly arranged at the end part of the vibroflot, which extends out of the sleeve; the anchor rod hole construction process is as follows: determining a hole position; adjusting a drilling angle; extruding and forming holes; extracting formation material; and (4) forming an anchor rod hole. The invention solves the problem of difficult hole forming of the soft foundation layer.
Description
Technical Field
The invention relates to the field of supporting engineering, in particular to a construction process of an anchor rod hole.
background
the anchor bolt support is a reinforcing support mode adopted in surface engineering such as side slopes, rock-soil deep foundation pits and the like and underground chamber construction such as tunnels, stopes and the like. The anchor rod support has good effect, simple construction and high construction speed.
When the supporting structure is constructed, a hole is often drilled to fix an anchor rod, main hole forming equipment comprises a Luoyang shovel, a common spiral drilling machine, a casing drilling machine and the like, the use environments of the equipment are limited to a certain extent, the hole forming efficiency and the quality are greatly different when the stratums are different and the drilling depths are different.
The application publication No. CN107447765A of the invention discloses a construction method for supporting a high slope construction frame anchor rod, which uses a spiral drilling machine to drill holes, the quality of the hole wall is poor when the holes are drilled, and high pressure air is used to remove impurities in the holes after the holes are drilled, so as to ensure the quality of the formed holes.
And soft foundation layers such as clay stratum, sand layer, broken pebble layer, miscellaneous filling stratum and the like are more difficult to form holes, and it is more difficult to drill high-quality anchor rod holes.
Disclosure of Invention
the invention aims to provide an anchor rod hole construction process which has the advantage of effectively realizing drilling of a soft foundation layer.
the technical purpose of the invention is realized by the following technical scheme: a construction process of an anchor rod hole comprises the steps of drilling an anchor rod hole by using a vibration compaction hole forming device;
The vibrating compaction hole former comprises a Luoyang shovel, a sleeve is sleeved on the outer side of the Luoyang shovel, one end of the sleeve is fixedly connected with a vibroflot, the vibroflot comprises a driving motor, a coupler is fixed at the output end of the driving motor, an eccentric shaft is fixed at one end, away from the driving motor, of the coupler, a vibrating shell is sleeved and connected on the outer side of the eccentric shaft, and a drill bit is fixedly arranged at one end, away from the coupler, of the vibrating shell;
The anchor rod hole construction process is as follows:
Determining the hole site: manually finishing the drilled surface of the anchor rod hole, removing stratum substances loosened on the surface, erecting an operation table on the surface, and determining the pigment spraying mark of the anchor rod hole position according to the measurement of a construction drawing;
Adjusting the drilling angle: adjusting the axis of a drill bit at the front end of the vibrating compaction hole former to enable the axis of the vibroflot to be horizontally arranged;
Compacting and forming holes: opening the vibroflot, vibrating a drill bit in front of the vibroflot, pushing the sleeve along the axis of the sleeve to drill the sleeve, and extruding the stratum materials by the drill bit to extrude the stratum materials in the drill hole to be compact to form a hole;
Extracting formation materials: part of stratum materials at the front end of the drill bit enter the casing, and a Luoyang shovel is used for extracting the stratum materials from the casing;
And (3) anchor rod hole forming: and after the hole is drilled to the specified depth, the vibrating compaction hole former is pulled out by pulling the sleeve to complete the drilling and construction of the anchor rod hole.
by adopting the technical scheme, after the driving motor is started to work, the driving motor drives the coupler to rotate, the coupler rotates to drive the eccentric shaft to rotate around the axis of the coupler and generate eccentric vibration at the same time, the eccentric shaft vibrates to drive the vibration shell connected with the eccentric shaft to vibrate, the vibration shell vibrates to drive the drill bit to vibrate, the drill bit vibrates to extrude the stratum compactly, the sleeve is pushed along the axis of the sleeve to drill the sleeve, part of stratum materials enter the sleeve when the drill bit moves forward, the stratum materials entering the sleeve are shoveled out by the Luoyang shovel, and the labor intensity of the Luoyang shovel operation is reduced;
The hole forming operation of the vibration compaction hole forming device is simple, the vibration compaction hole forming device is opened after the position and the drilling angle of the anchor rod hole are determined, the hole wall of the anchor rod hole is tightly pressed when the vibration compaction hole forming device forms the hole, the stability of the hole forming of a soft stratum is improved, the Luoyang shovel in the sleeve can extract stratum substances in the sleeve, the drilling efficiency of a drill bit is improved, the vibration compaction hole forming device is directly extracted from the anchor rod hole after the drilling is finished, the drilling of the anchor rod hole is finished, impurities which affect the placement of the anchor rod hole are basically avoided due to the compaction of the anchor rod hole, and the work of flushing the hole by using high-pressure air is omitted.
The invention is further configured to: the drill bit is provided with an injection device for injecting water;
The spraying device comprises a water storage tank arranged on the drill bit, the spraying device comprises a one-way mechanism which leads the water storage tank to flow out in a guiding way, and a water inlet pipe is communicated with the water storage tank;
The one-way mechanism is including seting up the spacing groove on the drill bit, the spacing inslot is provided with the baffle, the baffle with the notch of aqua storage tank seal and with spacing groove lateral wall between have the clearance, be connected with the gag lever post on the baffle, the gag lever post outside cover is equipped with the guide ring that is fixed in the aqua storage tank, the cover is equipped with the extension spring that is in tensile state that both ends difference baffle and guide ring fixed connection on the gag lever post.
By adopting the technical scheme, the injection device can spray high-pressure water, and the high-pressure water has the injection and lubrication effects on stratum materials, so that the resistance of the drill bit during drilling is reduced, and rapid hole forming is facilitated. When the resistance met by the drill bit is small, the jet device does not work, the water storage tank is covered by the one-way mechanism, when the jet device is started to work, water in the water inlet pipe enters the water storage tank, the water in the water storage tank pushes the baffle, the baffle drives the limiting rod to move, the limiting rod moves along the axis direction of the limiting rod under the limiting action of the guide ring, and the water in the water storage tank enters the limiting tank and is ejected out of the notch of the limiting tank at a high speed; when the injection device stops working, the tension spring pulls the baffle to move along the axis direction of the limiting rod, so that the baffle is abutted against the bottom surface of the limiting groove to seal the notch of the water storage groove, stratum substances are prevented from entering the water storage groove, and drilling is carried out by means of vibration of the drill bit and axial acting force; when the resistance that the drill bit met is great, opened injection apparatus, the intraductal water of intaking gets into the aqua storage tank and from the high-speed blowout of aqua storage tank notch, reduces the resistance that the drill bit received, is convenient for carry out drilling work.
The invention is further configured to: and a plurality of steel bars extending out of the drill bit are circumferentially fixed on the outer side of the drill bit.
by adopting the technical scheme, the drill bit can drive the reinforcing steel bar to vibrate when vibrating, the front end of the reinforcing steel bar can disturb the stratum, and the drilling work of the drill bit is facilitated.
The invention is further configured to: the limiting groove notch is fixedly provided with a closing ring, the outer side of the closing ring is abutted against the side wall of the limiting groove, and the inner diameter of the closing ring is gradually reduced along the direction away from the water storage tank.
By adopting the technical scheme, the sectional area of the outlet is smaller and the flow speed is larger when water in the limiting groove flows out from the inner side of the closing-up ring, so that the spraying effect of the spraying device is improved.
the invention is further configured to: and a limiting plate is fixedly arranged on one side of the limiting rod, which is opposite to the baffle plate, of the guide ring.
through adopting above-mentioned technical scheme, when injection apparatus started, the water in the aqua storage tank promoted the baffle and removed, contradicts until limiting plate and guide ring, and the baffle no longer removes this moment, prevents gag lever post and guide ring separation.
The invention is further configured to: the sleeve pipe outside cover is equipped with the positioning disk, be fixed with the first horizontal bubble parallel with the sleeve pipe axis on the positioning disk, be fixed with the second horizontal bubble perpendicular with the sleeve pipe axis on the positioning disk.
by adopting the technical scheme, when the angle of the drill bit is determined, the positioning disc is sleeved on the outer side of one end, close to the vibroflot, of the sleeve, when the vibrocompaction hole former is used for drilling an anchor rod hole with a horizontal axis, the position of the sleeve is adjusted, and meanwhile, the horizontal bubble in the first horizontal bubble is observed, and when the bubble in the first horizontal bubble is centered, the position of the sleeve can be determined to be accurate; when an anchor rod hole with a vertical axis is drilled, the position of the air bubble in the second horizontal bubble is observed to adjust the sleeve.
The invention is further configured to: a positioning disc is sleeved on the outer side of the sleeve, a plurality of abdicating holes which are uniformly distributed on the positioning disc in the circumferential direction are formed in the positioning disc, and the axes of the abdicating holes are parallel to the axis of the sleeve;
be provided with the mount on the positioning disk, the mount is including passing the hob in the hole of stepping down, and hob outside cover is equipped with and is used for guiding the spacing pipe that the hob removed along the sleeve axis on being fixed in the positioning disk.
By adopting the technical scheme, after the position of the anchor rod hole is determined, the fixing frame is placed in the hole opening of the anchor rod hole, the screw rod is rotated to be inserted into the stratum, the limiting pipe guides the screw rod to move along the axis direction of the screw rod, meanwhile, the limiting pipe can limit the position of the positioning disc after the screw rod is inserted into the stratum, the sleeve penetrates through the positioning disc, and the angle of the sleeve can be drilled more accurately.
the invention is further configured to: and a knob is welded and fixed at one end of the screw rod, which is far away from the vibroflot.
By adopting the technical scheme, the knob is convenient for the screw rod to rotate; and meanwhile, after the screw rod is inserted into a soil layer, the knob limits the positioning disc to move along the direction of the axis of the screw rod far away from the vibroflot.
The invention is further configured to: luoyang shovel includes the shovel body of U type structure, fixedly connected with shovel handle on the shovel body, can dismantle the connection between the shovel handle.
through adopting above-mentioned technical scheme, get into the intraductal stratum material of cover and get into the shovel body, twitch the shovel handle and drive the shovel body and shift out the sleeve pipe, the shovel body takes out the stratum material from the cover intraductal, can dismantle the connection between the shovel handle, and the luoyang shovel of being convenient for uses in the drilling of the different degree of depth.
in conclusion, the invention has the following beneficial effects:
1. the operation of hole forming by using the vibration compaction hole forming device is simple, the vibration compaction hole forming device is started after the position and the drilling angle of the anchor rod hole are determined, the hole wall of the anchor rod hole is tightly pressed when the vibration compaction hole forming device forms the hole, the stability of hole forming of a soft stratum is improved, the Luoyang shovel in the sleeve can extract stratum substances in the sleeve, the drilling efficiency of a drill bit is improved, the vibration compaction hole forming device is directly extracted from the anchor rod hole after the hole is drilled, the anchor rod hole is convenient to drill, and impurities which affect the placement of the anchor rod hole are basically not contained in the hole due to the compaction of the anchor rod hole, so that the work of flushing the hole by using high-pressure air is omitted;
2. the jetting device can jet high-pressure water, and the high-pressure water has jetting and lubricating effects on stratum materials, so that the resistance of a drill bit during drilling is reduced, and rapid hole forming is facilitated. When the resistance met by the drill bit is small, the injection device does not work, and the water storage tank is covered by the one-way mechanism at the moment, so that formation substances are prevented from entering the water storage tank, and drilling is carried out by means of vibration and axial acting force of the drill bit;
3. after the position of the anchor rod hole is determined, the fixing frame is placed in the hole opening of the anchor rod hole, the screw rod is rotated to be inserted into the stratum, the limiting pipe guides the screw rod to move along the axis direction of the screw rod, meanwhile, the limiting pipe can limit the position of the positioning disc after the screw rod is inserted into the stratum, the sleeve penetrates through the positioning disc, and the sleeve drilling angle can be more accurate.
Drawings
FIG. 1 is a schematic view showing a construction process of drilling an anchor hole according to embodiment 1;
FIG. 2 is a schematic sectional view showing a vibrating compacting hole-forming device according to example 1;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a schematic view of the structure of a positioning plate in embodiment 2;
Fig. 5 is a schematic structural view of the fixing frame in embodiment 3.
in the figure, 1, Luoyang shovel; 11. a shovel body; 12. a shovel shaft; 2. a sleeve; 21. protecting the pipe; 3. a vibroflotation device; 31. a drive motor; 311. a cable; 32. a coupling; 33. an eccentric shaft; 34. vibrating the housing; 341. a fin; 4. a drill bit; 41. a water storage tank; 42. a limiting groove; 43. a fixing plate; 44. a collar; 45. reinforcing steel bars; 5. an injection device; 51. a one-way mechanism; 511. a baffle plate; 512. a limiting rod; 513. a guide ring; 514. a tension spring; 515. a limiting plate; 52. a water inlet pipe; 6. an earth formation; 61. an anchor rod hole; 7. positioning a plate; 71. a first horizontal bubble; 72. a second horizontal bubble; 73. a hole of abdication; 8. a fixed mount; 81. a limiting pipe; 82. a screw rod; 83. a knob.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1
A construction process of an anchor rod hole is shown in figure 1, wherein an anchor rod hole 61 is drilled on a slope surface of a stratum 6 needing to be reinforced by using a vibration compaction hole forming device.
As shown in fig. 2, the vibrating compaction hole former comprises a luoyang shovel 1, wherein the luoyang shovel 1 comprises a shovel body 11 with a U-shaped structure and a shovel handle 12 with a long rod structure, and two adjacent shovel handles 12 are in threaded connection. When the drilling depth of the anchor rod hole construction process is small, the number of the shovel handles 12 is properly reduced, and the Luoyang shovel 1 is convenient to use during drilling.
As shown in fig. 2, a sleeve 2 is sleeved outside the shovel body 11, and the luoyang shovel 1 slides along the side wall of the sleeve 2.
As shown in fig. 2, a plurality of connecting rods are welded and fixed at one end of the inner side of the casing 2, and the vibroflots 3 are fixed on the connecting rods. The vibroflot 3 comprises a motor protective shell welded on the connecting rod, and a driving motor 31 is fixedly arranged on the inner side of the motor protective shell by using screws. The output end of the driving motor 31 is located outside the sleeve 2, the output end of the driving motor 31 is fixed with a coupler 32 by using a screw, one end of the coupler 32, which faces away from the driving motor 31, is fixed with an eccentric shaft 33 by using a screw, the outer side of the eccentric shaft 33 is connected with a vibration shell 34, and the vibration shell 34 is fixed with a bearing sleeved on the eccentric shaft 33 by using a screw.
as shown in fig. 2, a cable 311 is connected to the driving motor 31, when the driving motor 31 is started, the driving motor 31 drives the coupling 32 to rotate, the coupling 32 rotates to drive the eccentric shaft 33 to rotate around the axis of the coupling 32, and the eccentric shaft 33 rotates and drives the vibration housing 34 to vibrate. Fins 341 circumferentially and uniformly distributed on the side surface of the vibration shell 34 are welded to the outer side of the vibration shell 34, and the number of the fins 341 is two in the present embodiment.
as shown in fig. 2, the drill 4 is welded and fixed to the end of the vibration housing 34 away from the casing 2, and the drill 4 has a circular truncated cone structure with a bottom surface abutting against the end surface of the vibration housing 34. A plurality of fixing plates 43 are circumferentially distributed on the side surface of the vibration housing 34, and four fixing plates 43 are provided in this embodiment. During the forward process of the drill 4, the fixing plate 43 can pre-vibrate the stratum 6, so that the forward process of the drill 4 is facilitated.
As shown in fig. 2, the anchor rod hole construction process includes a spraying device 5, the spraying device 5 includes a water storage tank 41 arranged on the end surface of the drill 4 far away from the vibration shell 34, a one-way mechanism 51 is arranged on the water storage tank 41, and a water inlet pipe 52 is communicated with the water storage tank 41.
as shown in fig. 3, the one-way mechanism 51 includes a limit groove 42 opened on the drill 4, a bottom surface of the limit groove 42 is pressed against a baffle 511, the baffle 511 seals the notch of the water storage tank 41, and a gap exists between the baffle 511 and a side wall of the limit groove 42. A limiting rod 512 is fixedly welded on the baffle 511, a guide ring 513 located in the water storage tank 41 is sleeved outside the limiting rod 512, a fixing frame 8 is welded on the side face of the guide ring 513, and the fixing frame 8 is embedded in the water storage tank 41 in an interference manner. The limit rod 512 is sleeved with a tension spring 514 which is in a stretching state and two ends of which are respectively fixedly connected with the baffle 511 and the guide ring 513. A limiting plate 515 is fixedly arranged at one end of the limiting rod 512, which is positioned at the guide ring 513 and faces away from the baffle 511.
As shown in fig. 2, a sheath tube 21 accommodating the cable 311 and the inlet tube 52 is fixed to the inside of the casing 2. The protective tube 21 shields the cable 311 and the water inlet pipe 52 to reduce damage to the cable 311 and the water inlet pipe 52 when the Luoyang shovel 1 is moved.
As shown in fig. 2, a plurality of reinforcing bars 45 are welded on the outer side of the drill bit 4 in the circumferential direction, the reinforcing bars 45 extend out of the drill bit 4, and the number of the reinforcing bars 45 is four in this embodiment. When the drill bit 4 advances, the reinforcing steel bars 45 can firstly disturb the stratum 6 in front, so that the drill bit 4 can advance conveniently.
As shown in FIG. 3, a closing ring 44 is fixedly disposed at the notch of the limiting groove 42, the outer side of the closing ring 44 is embedded in the limiting groove 42 in an interference manner, and the inner diameter of the closing ring 44 is gradually reduced along the direction away from the water storage groove 41. The small cross-sectional area of the end of the closing ring 44 increases the velocity of the water flow ejected from the stopper groove 42, and improves the ejection effect of the ejection device 5.
the working process of the vibration compaction hole former comprises the following steps:
the driving motor 31 is started to work, the driving motor 31 drives the vibration shell 34 to vibrate, an axial acting force is applied to the anchor rod hole construction process, the drill bit 4 is pushed to advance towards the foundation layer, the drill bit 4 vibrates to extrude the hole wall tightly to improve the compactness of the hole wall, and therefore the hole forming stability is improved; part of the stratum 6 material in the advancing process of the drill bit 4 can enter the casing 2, the stratum 6 material entering the casing 2 enters the shovel body 11, the shovel body 11 is taken out from the casing 2 by pulling the shovel handle 12, and the stratum 6 material in the casing 2 is taken out;
When the drilling resistance is large, the injection device 5 is started, water in the water inlet pipe 52 enters the water storage tank 41, the water in the water storage tank 41 pushes the baffle 511, the baffle 511 moves along the axis direction of the limiting rod 512, so that the water in the water storage tank 41 enters the limiting groove 42, the water in the limiting groove 42 is sprayed at a high speed to reduce the resistance of the substance in the stratum 6 to the drill bit 4, and the drill bit 4 can conveniently advance; when the injection device 5 stops working, the tension spring 514 pulls the baffle 511 to abut against the bottom surface of the limit groove 42, so that the formation 6 substance is prevented from entering the water storage tank 41, and the limit plate 515 can prevent the limit rod 512 from being separated from the guide ring 513.
The anchor rod hole 61 is constructed as follows:
Determining the hole site: manually finishing the drilled surface of the anchor rod hole 61, removing the stratum 6 substances loosened on the surface, erecting an operation table on the surface, and determining the 61-position pigment spraying mark of the anchor rod hole according to the measurement of a construction drawing;
adjusting the drilling angle: adjusting the axis of a drill bit 4 at the front end of the vibrating compaction hole former to enable the axis of the vibroflot 3 to be horizontally arranged;
Compacting and forming holes: the vibroflot 3 is started, the drill bit 4 in front of the vibroflot 3 vibrates to push the sleeve 2 along the axis of the sleeve 2 so that the sleeve 2 drills, and the drill bit 4 extrudes substances in the stratum 6 so that the substances in the stratum 6 in the drilled hole are mutually extruded and compacted to form a hole;
Extracting formation materials: part of stratum 6 substances at the front end of the drill bit 4 enter the casing 2, and the stratum 6 substances are extracted from the casing 2 by using a Luoyang shovel 1;
And (3) anchor rod hole forming: when the drilling hole reaches the specified depth, the pulling sleeve 2 pulls out the vibration compaction hole former to complete the drilling of the anchor rod hole 61.
The hole forming operation of the vibration compaction hole forming device is simple, the hole wall of the anchor rod hole 61 is tightly pressed and compacted when the vibration compaction hole forming device forms a hole, the stability of the hole forming of a soft stratum 6 is improved, the Luoyang shovel 1 in the sleeve 2 can extract a stratum 6 substance in the sleeve 2, the drilling efficiency of the drill bit 4 is improved, the vibration compaction hole forming device is directly extracted from the anchor rod hole 61 after the drilling is completed, the anchor rod hole 61 is drilled and formed, and the hole is basically free of foreign matters which affect the placement of an anchor rod due to the compaction hole forming of the anchor rod hole 61, so that the work of flushing the hole by using high-pressure air is omitted.
Example 2
A construction process of an anchor rod hole is different from that of the embodiment 2 in that as shown in figure 4, a positioning disc 7 is sleeved outside a sleeve 2, a first horizontal bubble 71 parallel to the axis of the sleeve 2 is fixed on the positioning disc 7 in a gluing mode, and a second horizontal bubble 72 perpendicular to the axis of the sleeve 2 is fixed on the positioning disc 7 through screws.
when the angle of the drill bit 4 is determined, the positioning disc 7 is sleeved on the outer side of one end, close to the vibro-hammer 3, of the sleeve 2, when the vibratory compaction hole forming machine is used for drilling the horizontal anchor rod hole 61 of the axial line, the position of the sleeve 2 is adjusted, and meanwhile, the horizontal bubbles in the first horizontal bubble 71 are observed, and when the bubbles in the first horizontal bubble 71 are centered, the position of the sleeve 2 can be determined to be accurate; when the anchor rod hole 61 with the vertical axis is drilled, the position of the bubble in the second horizontal bubble 72 is observed to adjust the sleeve 2, so that the angle of the sleeve 2 is conveniently determined.
Example 3
The construction process of the anchor rod hole is different from that of the embodiment 2 in that four abdicating holes 73 are circumferentially and uniformly distributed on the positioning disc 7 and are formed in the positioning disc 7 as shown in fig. 5, and the axes of the abdicating holes 73 are parallel to the axis of the sleeve 2. Be provided with mount 8 on positioning disk 7, mount 8 is including passing the hob 82 of hole 73 of stepping down, and hob 82 outside cover is equipped with welds and is used for guiding hob 82 along the spacing pipe 81 of the removal of sleeve pipe 2 axis on positioning disk 7, and one end welded fastening that the hob 82 kept away from vibroflot 3 has the diameter to be greater than the knob 83 of hole 73 aperture of stepping down.
After the position of the anchor rod hole 61 is determined, the fixing frame 8 is placed at the hole opening of the anchor rod hole 61, the screw rod 82 is rotated to be inserted into the stratum 6, the limiting pipe 81 guides the screw rod 82 to move along the axial direction of the screw rod 82, meanwhile, after the screw rod 82 is inserted into the stratum 6, the limiting pipe 81 can limit the position of the positioning disc 7, the casing 2 penetrates through the positioning disc 7, and the drilling angle of the casing 2 can be determined. Knob 83 facilitates rotation of screw rod 82; while inserting the screw rod 82 into the soil layer, the knob 83 restricts the positioning plate 7 from moving along the axis of the screw rod 82 in a direction away from the vibroflot 3.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The anchor rod hole construction process is characterized by comprising the following steps: drilling an anchor rod hole (61) by using a vibration compaction hole forming device;
The vibrating compaction hole former comprises a Luoyang shovel (1), a sleeve (2) is sleeved on the outer side of the Luoyang shovel (1), a vibroflot (3) is fixedly connected to one end of the sleeve (2), the vibroflot (3) comprises a driving motor (31), a coupler (32) is fixed to the output end of the driving motor (31), an eccentric shaft (33) is fixed to one end, away from the driving motor (31), of the coupler (32), a vibrating shell (34) is sleeved on the outer side of the eccentric shaft (33), and a drill bit (4) is fixedly arranged at one end, away from the coupler (32), of the vibrating shell (34);
The construction process of the anchor rod hole (61) is as follows:
Determining the hole site: manually finishing the drilling surface of the anchor rod hole (61), removing stratum (6) substances with loose surfaces, erecting an operation table on the surface, and determining the position of the anchor rod hole (61) to spray pigment marks according to the measurement of a construction drawing;
Adjusting the drilling angle: adjusting the axis of a drill bit (4) at the front end of the vibrating compaction hole former to enable the axis of the vibroflot (3) to be horizontally arranged;
compacting and forming holes: starting the vibroflotation device (3), vibrating a drill bit (4) in front of the vibroflotation device (3), pushing the sleeve (2) along the axis of the sleeve (2) to enable the sleeve (2) to drill, extruding the substances of the stratum (6) by the drill bit (4), and extruding the substances of the stratum (6) in the drill hole to be compact to form a hole;
extracting formation materials: partial stratum (6) substances at the front end of the drill bit (4) enter the casing (2), and the stratum (6) substances are extracted from the casing (2) by using a Luoyang shovel (1);
And (3) anchor rod hole forming: and after the hole is drilled to a specified depth, the vibrating compaction hole former is pulled out by pulling the sleeve (2) to complete the drilling of the anchor rod hole (61).
2. the anchor rod eye construction process of claim 1, wherein: the drill bit (4) is provided with a jet device (5) for jetting water;
the spraying device (5) comprises a water storage tank (41) arranged on the drill bit (4), the spraying device (5) comprises a one-way mechanism (51) which leads the water storage tank (41) to flow out in a guiding way, and a water inlet pipe (52) is communicated with the water storage tank (41);
one-way mechanism (51) is including offering spacing groove (42) on drill bit (4), be provided with baffle (511) in spacing groove (42), baffle (511) seal the notch of aqua storage tank (41) and spacing groove (42) lateral wall between have the clearance, be connected with gag lever post (512) on baffle (511), gag lever post (512) outside cover is equipped with guide ring (513) that are fixed in aqua storage tank (41), the cover is equipped with extension spring (514) that are in tensile state that both ends respectively with baffle (511) and guide ring (513) fixed connection on gag lever post (512).
3. the anchor rod eye construction process of claim 1, wherein: and a plurality of steel bars (45) extending out of the drill bit (4) are circumferentially fixed on the outer side of the drill bit (4).
4. the anchor rod eye construction process of claim 2, wherein: the limiting groove (42) is provided with a closing ring (44) at the notch, the outer side of the closing ring (44) is abutted against the side wall of the limiting groove (42), and the inner diameter of the closing ring (44) is gradually reduced along the direction away from the water storage groove (41).
5. The anchor rod eye construction process of claim 2, wherein: and a limiting plate (515) is fixedly arranged on one side, back to the baffle (511), of the limiting rod (512) which is positioned on the guide ring (513).
6. the anchor rod eye construction process of claim 1, wherein: the outer side of the sleeve (2) is sleeved with a positioning disc (7), a first horizontal bubble (71) parallel to the axis of the sleeve (2) is fixed on the positioning disc (7), and a second horizontal bubble (72) perpendicular to the axis of the sleeve (2) is fixed on the positioning disc (7).
7. The anchor rod eye construction process of claim 1, wherein: a positioning disc (7) is sleeved on the outer side of the sleeve (2), a plurality of abdicating holes (73) which are circumferentially and uniformly distributed on the positioning disc (7) are formed in the positioning disc (7), and the axes of the abdicating holes (73) are parallel to the axis of the sleeve (2);
Be provided with mount (8) on positioning disk (7), mount (8) are equipped with spacing pipe (81) that are used for guiding hob (82) along sleeve pipe (2) axis removal on being fixed in positioning disk (7) including passing hob (82) of hole (73) of stepping down, hob (82) outside cover.
8. the anchor rod eye construction process of claim 7, wherein: and a knob (83) is welded and fixed at one end of the screw rod (82) far away from the vibroflot (3).
9. The anchor rod eye construction process of claim 1, wherein: luoyang shovel (1) is including shovel body (11) of U type structure, fixedly connected with shovel handle (12) on shovel body (11), can dismantle the connection between shovel handle (12).
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| CN109680667A (en) * | 2018-12-31 | 2019-04-26 | 相城区黄桥宜智机电技术服务部 | A kind of umbrella shape injection anchor |
| CN110306574A (en) * | 2019-07-18 | 2019-10-08 | 广东厚普建设工程有限公司 | A kind of construction prestressed cable method |
| CN113027475A (en) * | 2019-12-09 | 2021-06-25 | 中国铁建大桥工程局集团有限公司 | Jet type Luoyang shovel large pipe shed pore-forming construction method |
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