CN118223784B - A pre-drilling device for building construction with anti-drift function - Google Patents
A pre-drilling device for building construction with anti-drift function Download PDFInfo
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- CN118223784B CN118223784B CN202410524980.9A CN202410524980A CN118223784B CN 118223784 B CN118223784 B CN 118223784B CN 202410524980 A CN202410524980 A CN 202410524980A CN 118223784 B CN118223784 B CN 118223784B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
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Abstract
本发明涉及建筑施工技术领域，尤其涉及一种具有防偏移功能的建筑施工预钻孔装置。现有技术中，钻孔的孔壁强度没有得到实质性的提升，可能会导致钻孔塌陷的问题。本发明的技术方案为：一种具有防偏移功能的建筑施工预钻孔装置，包括有钻杆、钻头、壳体和盖板；钻杆固接且连通有钻头；钻头固接有壳体；壳体转动连接有盖板。本发明通过钻头和壳体不断的转动，因此，位于螺旋槽和容纳部中且粘稠的泥浆状的土壤，能够被壳体和容纳部挤压于钻孔的周壁内，相较于现有技术，将松散的土壤挤压于钻孔的周壁内，不仅能够实现钻孔附近土壤的挤密强化的效果，还进一步提高了钻孔的孔壁强度。
The present invention relates to the field of building construction technology, and in particular to a building construction pre-drilling device with an anti-drift function. In the prior art, the wall strength of the borehole has not been substantially improved, which may lead to the problem of borehole collapse. The technical solution of the present invention is: a building construction pre-drilling device with an anti-drift function, including a drill rod, a drill bit, a housing and a cover plate; the drill rod is fixedly connected and connected to the drill bit; the drill bit is fixedly connected to the housing; the housing is rotatably connected to the cover plate. The present invention continuously rotates the drill bit and the housing, so that the viscous muddy soil located in the spiral groove and the accommodating portion can be squeezed into the peripheral wall of the borehole by the housing and the accommodating portion. Compared with the prior art, squeezing the loose soil into the peripheral wall of the borehole can not only achieve the effect of compacting and strengthening the soil near the borehole, but also further improve the wall strength of the borehole.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a pre-drilling device with an anti-deviation function for building construction.
Background
At present, in the process of building construction, a pile driver is required to be used for drilling the ground, then a reinforcement cage is placed in the drilled hole, and finally concrete is poured into the drilled hole. However, in the process of drilling, the power head of the pile driver drives the drill rod to move downwards and simultaneously drives the drill rod to rotate, so that the drill bit arranged at the lower end of the drill rod rotates, and the drill bit gradually drills into soil in the vertical direction, so that the position of the soil acted by the drill bit and the drill rod forms a drilling hole.
During the drilling process of the drill bit, soil acted by the drill bit can turn upwards and outwards along the drill hole. The upturned soil can affect the structural strength of the upper portion of the borehole.
The prior Chinese patent refers to an external turning-down prevention auxiliary device of a pile machine and a control method thereof (CN 114293920B), wherein loose soil drilled by a drill bit can be extruded into the peripheral wall of a drill hole by a method of limiting soil turning-down, so that the wall strength of the drill hole is improved, but after the drill hole is finished, the loose soil is extruded into the peripheral wall of the drill hole, but the soil hardness is far lower than the original soil hardness, so that the soil is loose, the wall strength of the drill hole is not substantially improved, and the problem of collapse of the drill hole can be caused.
Disclosure of Invention
In order to overcome the defect that the hole wall strength of a drilled hole is not substantially improved and the collapse of the drilled hole is possibly caused in the prior art, the invention provides a pre-drilling device with an anti-deviation function for building construction.
The technical scheme is that the building construction pre-drilling device with the anti-deviation function comprises a drill rod, a drill bit, a shell and a cover plate, wherein the drill rod is fixedly connected and communicated with the drill bit, the drill bit is fixedly connected with the shell, the shell is rotatably connected with the cover plate, the drill bit is provided with a plurality of spiral grooves, each spiral groove is provided with a plurality of water outlets, the shell is provided with a plurality of containing parts, the number of the containing parts is matched with that of the spiral grooves, each spiral groove is communicated with the corresponding containing part, and water delivery equipment is externally connected with the drill rod.
More preferably, the housing is provided with a plurality of inclined grooves, and each inclined groove is communicated with two adjacent containing parts.
The ground and the shell are connected with the reinforcing mechanism together, the reinforcing mechanism is used for reinforcing the peripheral wall of a drilled hole, the reinforcing mechanism comprises a hollow stirring ring, a bearing ring, tapered conveying pipes and augers, the hollow stirring ring is arranged on the ground, the bearing ring is rotatably connected inside the hollow stirring ring and is in sliding connection with the shell, the bearing ring is provided with a plurality of soil outlets distributed in an annular array and communicated with the accommodating part, the hollow stirring ring is provided with an accommodating cavity and communicated with the soil outlets, the hollow stirring ring is provided with a plurality of water filling ports, the shell is provided with a plurality of guide grooves distributed in an annular array and located above the inclined grooves, the bearing ring is provided with at least three tapered conveying pipes distributed in an annular array and communicated with the guide grooves on the corresponding side, and each tapered conveying pipe is provided with one auger.
The hollow stirring ring is fixedly connected with a plurality of L-shaped mounting plates distributed in an annular array, each L-shaped mounting plate is fixedly connected with one arc-shaped sliding rail, all arc-shaped sliding rails are connected with one round sliding block in a sliding mode, a plurality of telescopic rods are arranged at the lower part of the round sliding block, all telescopic rods are fixedly connected with one rotating ring in a rotating mode, the rotating ring is connected with the telescopic parts of all telescopic rods in a rotating mode, the fixed part and the telescopic parts of each telescopic rod are provided with one roller, the rollers of all telescopic rod fixed parts are in contact with the upper part of a drill rod, the rollers of all telescopic rod telescopic parts are in contact with the lower part of the drill rod, all rollers in contact with the upper part of the drill rod are in spiral arrangement, all rollers in contact with the lower part are in spiral arrangement, and the hollow stirring ring and the telescopic rod fixed parts are connected with the rotating unit in a rotating mode, and the rotating unit is used for driving the telescopic rods to rotate.
More preferably, all the rollers are arranged obliquely.
More preferably, the rollers are provided with grooves that are staggered.
More preferably, the roller and the telescopic rod are connected through a hydraulic rod, the round sliding block is of a hollow structure, the fixing part and the telescopic part of the telescopic rod are of hollow structures and are communicated with each other, the round sliding block is communicated with the fixing part of the telescopic rod, the upper part of the round sliding block is provided with a liquid feeding port, the hydraulic rod connected to the fixing part of the telescopic rod is communicated with the fixing part of the telescopic rod, and the hydraulic rod connected to the telescopic part of the telescopic rod is communicated with the telescopic part of the telescopic rod.
The quick-freezing mechanism is characterized by further comprising a quick-freezing mechanism, wherein the shell is connected with the quick-freezing mechanism and used for freezing soil, the quick-freezing mechanism comprises C-shaped plates, storage boxes and liquid spraying heads, each storage box is respectively provided with a plurality of through holes distributed in a vertical array, a plurality of C-shaped plate groups distributed in an annular array are arranged in the shell, each C-shaped plate group is composed of a plurality of C-shaped plates distributed in a vertical array, the positions of the C-shaped plates correspond to the positions of the through holes, the C-shaped plates are made of rubber materials and have deformability, the C-shaped plates are matched with the fixing parts of the telescopic rods, each C-shaped plate is respectively provided with one storage box, a spring is connected between each storage box and each storage box, each storage box is respectively communicated with one liquid spraying head, each liquid spraying head is connected with the corresponding through hole on one side, each storage box is made of rubber materials and has a certain deformability, and each liquid spraying head is provided with a plurality of liquid spraying holes.
More preferably, each through hole is provided with a plurality of scrapers which are made of rubber, and the scrapers are used for scraping soil covering the liquid spraying holes to prevent the liquid spraying holes from being blocked.
More preferably, the sand-gravel stirring device further comprises arc-shaped plates, each containing part is movably connected with two symmetrically-distributed arc-shaped plates, the two arc-shaped plates are movably connected with the liquid spraying heads on the corresponding sides, and the arc-shaped plates are used for forming better extrusion force on sand and gravel.
The drill bit has the beneficial effects that the drill bit and the shell continuously rotate, so that thick slurry-like soil in the spiral groove and the containing part can be extruded in the peripheral wall of the drill hole by the shell and the containing part, compared with the prior art, loose soil is extruded in the peripheral wall of the drill hole, the compaction strengthening effect of soil near the drill hole can be realized, the hole wall strength of the drill hole is further improved, and the problems that in the prior art, although the loose soil is extruded in the peripheral wall of the drill hole, the soil hardness is far lower than the original soil hardness, the soil is loose, the hole wall strength of the drill hole is not improved substantially, and the collapse of the drill hole can be caused are solved.
The soft soil and the sand in the accommodating cavity are moistened through the water filling port arranged on the hollow stirring ring, so that the soft soil and the sand are mixed together in a sticky state like concrete, the adhesiveness of the sand to the peripheral wall of the drilled hole is enhanced, then the concrete in the accommodating cavity is sent into the diversion trench through the auger from the conical conveying pipe, and when the drill rod, the drill bit and the shell rotate, the concrete in the diversion trench is continuously extruded on the peripheral wall of the drilled hole, so that the sand is filled on the peripheral wall of the drilled hole on the basis of extruding the soil, the strength of the peripheral wall of the drilled hole is further improved, and the collapse phenomenon of the drilled hole is avoided.
The invention can continuously apply a spiral downward external force to the drill rod when the roller rotates, increases the drilling torque force of the drill rod and the drill bit, and further plays a role in assisting the drill rod to drill, and can drive the roller below to follow along with the drilling of the drill bit due to the telescopic structure of the telescopic rod, so that the spiral downward external force is constantly applied to the lower part of the drill rod and the drill bit, and the problem that in the prior art, when the drilling depth is larger, the longer the drill rod, the smaller the drilling torque force is applied to the drill rod by the drilling auxiliary mechanism arranged on the upper part of the drill rod, and at the moment, the effect of increasing the drilling force of the drill rod and the drill bit cannot be achieved is solved.
According to the invention, hydraulic oil is conveyed into the hydraulic rods below the telescopic parts of the telescopic rods, so that all the telescopic parts of the hydraulic rods drive the rollers to push out, and the rollers press the drill rod to limit the drill rod, so that the drill rod is prevented from being deviated.
According to the invention, the liquid nitrogen is sprayed into the soil through the storage box, the liquid spraying head and the liquid spraying hole after a short reaction time, so that the soil filled with the liquid nitrogen is quickly frozen, and as the drill rod, the drill bit and the shell drill downwards, the soil extruded on the surrounding wall of the drill hole and the sand stone embedded in the soil are sequentially frozen from top to bottom, so that not only can the moisture in the soil be locked, the moisture is prevented from flowing downwards, but also the extruded soil is solidified, the compaction strengthening effect of the soil near the drill hole is further improved, and the hole wall strength of the drill hole is improved.
Drawings
FIG. 1 is a schematic view of a first construction of a pre-drilling device for construction with anti-migration function according to the present invention;
FIG. 2 is a schematic diagram of a second construction of the disclosure of the pre-drilling apparatus for construction with anti-migration function of the present invention;
FIG. 3 is an exploded view of the receiving ring and hollow stirring ring of the construction pre-drilling device with anti-migration function of the present invention;
FIG. 4 is a schematic view of the structure of the receiving ring and the housing of the pre-drilling device with anti-offset function for construction according to the present invention;
FIG. 5 is a schematic view of the structure of a casing of the construction pre-drilling device with anti-migration function of the present invention;
Fig. 6 is a schematic structural diagram of a quick-freezing mechanism disclosed by the pre-drilling device with an anti-deviation function for building construction;
fig. 7 is a schematic diagram of a part of a quick-freezing mechanism disclosed by the construction pre-drilling device with an anti-deviation function;
FIG. 8 is a schematic view of the telescopic rod and C-shaped plate disclosed by the pre-drilling device with the anti-offset function for building construction;
FIG. 9 is a schematic structural view of a fracture prevention mechanism disclosed by the pre-drilling device with an anti-offset function for building construction;
Fig. 10 is a schematic view of a part of the fracture preventing mechanism disclosed by the pre-drilling device with the anti-deviation function for building construction.
The device is characterized by comprising a 1-drill rod, a 2-drill bit, a 3-shell, a 4-cover plate, a 101-C template, a 102-storage box, a 103-liquid spraying head, a 104-scraper, a 111-arc template, a 112-bearing ring, a 113-conical conveying pipe, a 114-auger, a 201-hollow stirring ring, a 202-L-shaped mounting plate, a 203-arc sliding rail, a 204-round sliding block, a 205-telescopic rod, a 206-swivel, a 211-motor, a 212-gear, a 213-toothed ring, a 301-hydraulic rod, a 302-roller, a2 a-spiral groove, a2 b-water outlet, a 3 a-containing part, a 3 b-through hole, a 3C-chute, a 3 d-guide groove, a 103 a-liquid spraying hole, a 112 a-soil outlet, a 201 a-containing cavity, a 204 a-liquid feeding hole and a 001-ground.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
Example 1
1-10, The building construction pre-drilling device with the anti-offset function comprises a drill rod 1, a drill bit 2, a shell 3 and a cover plate 4, wherein the drill rod 1 is fixedly connected with the drill bit 2, the drill bit 2 is fixedly connected with the shell 3, the shell 3 is rotatably connected with the cover plate 4, the drill bit 2 is provided with at least three spiral grooves 2a, each spiral groove 2a is provided with a plurality of water outlets 2b, the shell 3 is provided with at least three containing parts 3a, the number of the containing parts 3a is matched with that of the spiral grooves 2a, each spiral groove 2a is communicated with the corresponding containing part 3a, soil drilled by the drill bit 2 is contained through the spiral groove 2a and the containing part 3a, water delivery equipment is externally connected with the drill rod 1, and is controlled to spray water flow to the soil contained in the spiral groove 2a and the containing part 3a sequentially through the drill rod 1, the drill bit 2 and the water outlets 2b, so that the soil is wet.
The casing 3 is provided with a plurality of inclined grooves 3c, each inclined groove 3c is communicated with two adjacent containing parts 3a, and when the drill bit 2 and the casing 3 rotate to squeeze soil, the arrangement of the inclined grooves 3c can enable the soil to move between the adjacent containing parts 3a, so that the soil of each containing part 3a is uniform, and the soil can be uniformly distributed on the peripheral wall of a drilled hole.
The work of the invention for reinforcing the drilling strength is as follows:
when drilling, the power head of the pile driver drives the drill rod 1 to move downwards, and simultaneously drives the drill rod 1 to rotate, so that the drill bit 2 on the drill rod 1 rotates, and the drill bit 2 gradually drills into the ground 001 along the vertical direction, so that the ground 001 is drilled by the position acted by the drill bit 2 and the drill rod 1.
During the above-mentioned drilling, the soil acted on by the drill bit 2 is turned up and out along the spiral groove 2a and the receiving portion 3a, and the turned up soil affects the structural strength of the upper portion of the drilling.
In the drilling process, the water supply equipment connected with the drill rod 1 is controlled to spray water flow to the soil accommodated in the spiral groove 2a and the accommodating part 3a sequentially through the drill rod 1, the drill bit 2 and the water outlet 2b, so that the soil is wetted, the loose particles are converted into thick slurry, and the drill bit 2 and the shell 3 continuously rotate, so that the thick slurry soil in the spiral groove 2a and the accommodating part 3a can be extruded into the peripheral wall of the drilling hole by the shell 3 and the accommodating part 3 a.
Example 2
On the basis of the embodiment 1, as shown in fig. 3-5, the drilling machine further comprises a reinforcing mechanism, wherein the ground 001 and the shell 3 are connected with the reinforcing mechanism together, and the reinforcing mechanism is used for reinforcing the peripheral wall of the drilling hole; the reinforcing mechanism comprises a hollow stirring ring 201, a receiving ring 112, a conical conveying pipe 113 and a packing auger 114, wherein the hollow stirring ring 201 is arranged on the ground 001, the receiving ring 112 is connected inside the hollow stirring ring 201 in a rotating mode and is in sliding connection with the shell 3, the receiving ring 112 is provided with at least three annular array-distributed soil outlet 112a, the soil outlet 112a is communicated with the containing part 3a, the hollow stirring ring 201 is provided with a containing cavity 201a, the containing cavity 201a is communicated with the soil outlet 112a, the hollow stirring ring 201 is provided with a plurality of water filling ports, soil and sand in the containing part 3a are turned up at the soil outlet 112a and enter the containing cavity 201a along the soil outlet 112a, the soil and sand are wetted through the water filling ports arranged on the hollow stirring ring 201, the shell 3 is provided with at least three annular array-distributed guide grooves 3d, the annular array-distributed soil outlet 112a is communicated with the containing part 3a, the hollow stirring ring 201 is provided with at least three annular array-distributed conical conveying pipes 113, the conical conveying pipes 113 are communicated with the corresponding side of the conical conveying pipes 113, and each conical conveying pipe 113 is communicated with the corresponding one hollow stirring ring 3d, and each conical conveying pipe is provided with the corresponding hollow conveying pipe 114 a, and each conical conveying pipe is provided with a hollow conveying pipe 114.
The drilling and reinforcing work of the invention is as follows:
The structure of the soil is changed along with the drilling of the drill rod 1 and the drill bit 2, and the soil structure is changed from the original soft soil with small sand and stone content to the hard soil with large sand and stone content, so that when the drill bit 2 drills to the hard soil with large sand and stone content, even if water is injected into sand and stone, sand and stone such as soft soil can not be endowed with stronger adhesiveness, and at the moment, if sand and stone such as soil are extruded on the peripheral wall of a drilled hole, the drilled hole is liable to collapse due to poor adhesiveness of the sand and stone;
Therefore, when the drill bit 2 drills into soft soil with small sand and stone content, the upturned soft soil sequentially enters the accommodating cavity 201a along the spiral groove 2a, the accommodating part 3a and the soil outlet 112a to be stored, when the drill bit 2 drills into hard soil with large sand and stone content, the upturned sand and stone sequentially enters the accommodating cavity 201a along the spiral groove 2a, the accommodating part 3a and the soil outlet 112a, the soft soil and sand in the accommodating cavity 201a are wetted through the water filling port arranged on the hollow stirring ring 201, the soft soil and sand are mixed together in a viscous state like concrete, so that the adhesiveness of sand and stone to the surrounding wall of a drilled hole is enhanced, and then the concrete in the accommodating cavity 201a is fed into the guide groove 3d through the auger 114 from the conical conveying pipe 113, and when the drill bit 1, the drill bit 2 and the casing 3 rotate, the concrete in the guide groove 3 is continuously extruded on the surrounding wall of the drilled hole, so that the soft soil and sand in the surrounding wall of the drilled hole are extruded, and the phenomenon of the surrounding wall of the drilled hole is further prevented from collapsing is avoided.
Example 3
On the basis of embodiment 2, as shown in fig. 8-10, the device further comprises an anti-fracture mechanism, wherein the hollow stirring ring 201 and the drill bit 2 are connected with the anti-fracture mechanism jointly, the anti-fracture mechanism is used for preventing drill rods 1 and the drill bit 2 from being broken, the anti-fracture mechanism comprises an L-shaped mounting plate 202, arc-shaped sliding rails 203, round sliding blocks 204, telescopic rods 205, rollers 302 and rotating units, the hollow stirring ring 201 is connected with at least three L-shaped mounting plates 202 distributed in an annular array through bolts, each L-shaped mounting plate 202 is connected with one arc-shaped sliding rail 203 through bolts, all the arc-shaped sliding rails 203 are connected with one round sliding block 204 in a sliding mode, at least three telescopic rods 205 are arranged at the lower portion of the round sliding blocks 204, one rotating ring 206 is fixedly connected with the telescopic parts of all the telescopic rods 205 jointly, one roller 302 is arranged on the fixed portion of each telescopic rod 205 and the telescopic parts of the telescopic rods, the roller 302 of all the telescopic rods 205 are in contact with the upper portion of the drill rods 1, all the rollers 302 of the telescopic rods 205 are in contact with the lower portion of the whole spiral rods 1, and all the telescopic rods 302 of the telescopic rods 205 are connected with the whole spiral rods 201 in a contact mode, and all the whole hollow stirring rods are connected with the whole hollow stirring rods are arranged.
All the rollers 302 are obliquely arranged, and on the basis that all the rollers 302 are distributed in a spiral shape, the rollers 302 are inclined, so that the external force applied to the drill rod 1 is increased.
The rollers 302 are provided with staggered grooves by which friction between the rollers 302 and the drill rod 1 is increased.
The rotating unit comprises a motor 211, a gear 212 and a toothed ring 213, wherein the hollow stirring ring 201 is connected with the motor 211 through bolts, the gear 212 is fixedly connected with an output shaft of the motor 211, one toothed ring 213 is fixedly connected with a fixing part of all the telescopic rods 205, and the toothed ring 213 is meshed with the gear 212.
The roller 302 is connected with the telescopic rod 205 through a hydraulic rod 301, the round sliding block 204 is of a hollow structure, the fixed part and the telescopic part of the telescopic rod 205 are of hollow structures and are communicated with each other, the round sliding block 204 is communicated with the fixed part of the telescopic rod 205, the upper part of the round sliding block 204 is provided with a liquid feeding port 204a, a hydraulic rod 301 connected with the fixed part of the telescopic rod 205 is communicated with the fixed part of the telescopic rod 205, the hydraulic rod 301 connected with the telescopic part of the telescopic rod 205 is communicated with the telescopic part of the telescopic rod 205, the roller 302 is driven to push out through the telescopic part of the hydraulic rod 301, the roller 302 presses the drill rod 1, and the drill rod 1 and the drill bit 2 are prevented from being deviated.
The anti-fracture work of the invention is as follows:
In the drilling operation, the drill rod 1 is in a relatively complex operating state. As the drilling depth is larger, the drilling resistance of the drill rod 1 and the drill bit 2 is larger, and when the drilling resistance is larger than the maximum bearing capacity of the drill bit 2, the drill bit 2 is broken;
In the prior art, a drilling auxiliary mechanism is arranged at the upper part of a drilling hole, a spiral downward external force is applied to the upper part of the drilling rod 1 to enlarge the drilling torque force of the drilling rod 1 and the drill bit 2, however, when the drilling depth is larger, the longer the drilling rod 1 is, the smaller the drilling torque force applied to the drilling rod 1 by the drilling auxiliary mechanism arranged at the upper part of the drilling hole is, and at the moment, the effect of enlarging the drilling force of the drilling rod 1 and the drill bit 2 cannot be achieved;
Therefore, in the drilling process, the output shaft of the motor 211 is controlled to drive the gear 212 to rotate, so that the gear 212 drives the toothed ring 213 and the telescopic rod 205 to rotate, and the telescopic rod 205 drives the hydraulic rod 301 and the roller 302 to rotate, and because the roller 302 is obliquely arranged and all the rollers 302 are integrally spiral, when the roller 302 rotates, a spiral downward external force is continuously applied to the drill rod 1, the drilling torque force of the drill rod 1 and the drill bit 2 is increased, and the drilling effect of the auxiliary drill rod 1 is further played, and because of the telescopic structure of the telescopic rod 205, the telescopic part of the telescopic rod 205 can drive the roller 302 below to follow along with the drilling of the drill bit 2, the problem that the spiral downward external force is applied to the lower part of the drill rod 1 and the drill bit 2 at any time is kept, and the drilling torque force applied to the drill rod 1 by the drilling auxiliary mechanism arranged on the upper part of the drill rod 1 is smaller when the drilling depth is larger is solved.
When the drill rod 1 and the drill bit 2 are easy to deviate when encountering hard soil layers, at the moment, external hydraulic oil conveying equipment is controlled to sequentially convey hydraulic oil to the hydraulic rod 301 above through the liquid conveying port 204a, the round sliding block 204, the telescopic rod 205 and the fixing part of the telescopic rod 205, and convey hydraulic oil to the hydraulic rod 301 below through the telescopic part of the telescopic rod 205, so that the telescopic parts of all the hydraulic rods 301 drive the rollers 302 to push out, the drill rod 1 is pressed by the rollers 302 to limit the drill rod, and deviation is prevented.
Example 4
On the basis of embodiment 3, as shown in fig. 5-9, the soil freezing device further comprises a quick freezing mechanism, wherein the shell 3 is connected with the quick freezing mechanism and used for freezing soil, the quick freezing mechanism comprises C-shaped plates 101, storage boxes 102 and liquid spraying heads 103, each storage box 3a is provided with at least three through holes 3b distributed in a vertical array, at least three C-shaped plate groups distributed in an annular array are arranged in the shell 3, each C-shaped plate group consists of at least three C-shaped plates 101 distributed in a vertical array, the positions of the C-shaped plates 101 correspond to the positions of the through holes 3b, the C-shaped plates 101 are made of rubber materials, the C-shaped plates 101 have deformation capacity, the C-shaped plates 101 are matched with fixing parts of telescopic rods 205, each C-shaped plate 101 is provided with a storage box 102, a spring is connected between each storage box 102 and each storage box 3a, each storage box 102 is communicated with one liquid spraying head 103, each storage box 103 is connected with the corresponding through hole 3b in a sliding mode, each storage box 3a is made of rubber material, each storage box 103 is provided with a certain deformation capacity, each storage box is provided with the corresponding side through hole 3b, each storage box is made of a corresponding to each storage box is made of a rubber material, each C-shaped plate group is provided with at the C-shaped plate 101 is distributed in a vertical array, the position is corresponding to the vertical array, each storage box is provided with the C-shaped plate 101 is provided with the vertical, is provided with each through a vertical, is respectively, and is provided with a vertical, and is.
Each through hole 3b is provided with a plurality of scrapers 104, and the scrapers 104 are made of rubber, and when the liquid spraying heads 103 are exposed out of the through holes 3b or shrink inwards, the liquid spraying heads can be scratched by the scrapers 104, so that the soil covered in the liquid spraying holes 103a is scraped.
And each containing part 3a is hinged with two arc-shaped plates 111 which are symmetrically distributed, and the two arc-shaped plates 111 are hinged with the liquid spraying heads 103 on the corresponding sides.
The soil freezing work of the invention is as follows:
in the above-described drilling process, the soil is moistened, and when the soil is pressed against the peripheral wall of the drill hole by the casing 3, moisture in the soil is squeezed out and flows into the drill hole, affecting the drilling of the drill bit 2.
Therefore, when the telescopic rod 205 rotates, the fixing portion of the telescopic rod 205 contacts with the C-shaped plate 101 and forces the C-shaped plate 101, the storage box 102 and the liquid spraying head 103 to move towards the through hole 3b, so that the liquid spraying head 103 is exposed from the through hole 3b and is inserted into the soil of the surrounding wall of the drill hole, liquid nitrogen is sprayed into the soil sequentially through the storage box 102, the liquid spraying head 103 and the liquid spraying hole 103a, after a short reaction time, the liquid nitrogen is filled into the soil, so that the soil filled with the liquid nitrogen is quickly frozen, and as the drill rod 1, the drill bit 2 and the casing 3 downwards drill, the soil extruded on the surrounding wall of the drill hole and the sand stone embedded in the soil are sequentially frozen from top to bottom, so that not only the moisture in the soil can be locked, the downward flow of the moisture is prevented, but also the soil after being extruded is solidified, the compaction strengthening effect of the soil near the drill hole is further improved, and the wall strength of the drill hole is improved.
And when the liquid spraying head 103 is exposed from the through hole 3b, the liquid spraying head 103 can drive the containing part 3a which is made of rubber and has certain deformability to move towards the peripheral wall of the drilled hole, so that the outer surface of the containing part 3a is attached to the soil extruded on the peripheral wall of the drilled hole, the outer surface of the shell 3 is in a complete circular arc shape, and better extrusion and trowelling effects on the soil are achieved.
In the prior art, a method of pouring cold water into a drill hole is generally adopted to solve the problem of overheating and scrapping of the drill bit 2, however, pouring a large amount of cold water into the drill hole can increase the water content of the soil near the drill hole, and the soil is easy to be rammed into bentonite, so that the bearing capacity of the drill hole is unstable;
Therefore, when liquid nitrogen is sprayed out of the liquid spraying hole 103a, not only can the soil be frozen, but also the temperature in the drilling hole can be reduced, so that the drill bit 2 and the shell 3 positioned in the drilling hole are cooled, and the problems that in the prior art, a large amount of cold water is poured into the drilling hole, the water content of the soil near the drilling hole is increased, the soil is easy to tamper into rubber soil, and the bearing capacity of the drilling hole is unstable are solved.
In order to raise the extrusion force of the housing 3 to the soil and sand, when the uppermost liquid spraying head 103 is exposed from the through hole 3b, the liquid spraying head 103 also forces the two arc plates 111 on the corresponding sides to rotate outwards to form an arc surface together with the housing 3, and the soil and sand in the accommodating part 3a are rapidly extruded on the peripheral wall of the drilled hole through the arc plates 111 rotating outwards, so that when the housing 3 rotates, the arc surface can form better extrusion force to the soil and sand, and the extrusion effect is enhanced;
It should be noted that in this process, all uppermost liquid ejecting heads 103 are controlled to stop ejecting liquid nitrogen, so that the soil entering between housing portion 3a and arc plate 111 is prevented from being frozen by liquid nitrogen ejected from uppermost liquid ejecting heads 103 and from being caught between housing portion 3a, arc plate 111 and the peripheral wall of the borehole after arc plate 111 is rotated outwardly, thereby affecting the downward penetration of drill bit 2 and housing 3.
As the drilling is deeper, the more soil is turned up, if the soil is continuously extruded to the peripheral wall of the drilling hole, the soil at the same part is extruded more and more, so that the soil layer is tighter and more, the rotation resistance of the drill rod 1 and the drill bit 2 is increased, and the drilling can be continued by more drilling force;
Therefore, the accommodating portion 3a is not only communicated with the accommodating cavity 201a through the soil outlet 112a, but also communicated with the outside through the soil outlet 112a, when more and more soil is extruded by the peripheral wall of the drill hole, and the extrusion cannot be continued, excessive soil can be turned out to the upper part of the drill hole along the accommodating portion 3a and the soil outlet 112a, and the turned-out soil is subjected to wetting and freezing treatment, so that the turned-up soil is in a regular block shape as a whole, the dust amount is small, and the cleaning is convenient.
The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. All equivalents and alternatives falling within the spirit of the invention are intended to be included within the scope of the invention. What is not elaborated on the invention belongs to the prior art which is known to the person skilled in the art.
Claims (8)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104533284A (en) * | 2014-04-22 | 2015-04-22 | 威海市水利岩土工程有限公司 | Long screw pile machine |
| CN114293920A (en) * | 2022-03-08 | 2022-04-08 | 河北邱硕机械有限公司 | Pile machine eversion and drilling-down prevention auxiliary device and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT411383B (en) * | 2001-11-30 | 2003-12-29 | Techmo Entw & Vertriebs Gmbh | METHOD AND DEVICE FOR DRILLING HOLES |
| CN101566046A (en) * | 2009-06-11 | 2009-10-28 | 石家庄中煤装备制造有限公司 | Anti-collapse hole drill tool |
| CN105089509B (en) * | 2014-05-12 | 2018-01-09 | 中山市雅西环保科技有限公司 | The graft clay auger stem of groove of band desilts machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533284A (en) * | 2014-04-22 | 2015-04-22 | 威海市水利岩土工程有限公司 | Long screw pile machine |
| CN114293920A (en) * | 2022-03-08 | 2022-04-08 | 河北邱硕机械有限公司 | Pile machine eversion and drilling-down prevention auxiliary device and control method thereof |
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