CN119195638B

CN119195638B - A bored pile drilling device and construction process for pump station

Info

Publication number: CN119195638B
Application number: CN202411283745.3A
Authority: CN
Inventors: 施国土; 付显阳; 冯宗义; 俞元洪; 黄文涛; 相恒宇; 叶浩; 黄超杰
Original assignee: Zhejiang Reclaim Construction Group Co ltd
Current assignee: Zhejiang Reclaim Construction Group Co ltd
Priority date: 2024-09-13
Filing date: 2024-09-13
Publication date: 2025-06-17
Anticipated expiration: 2044-09-13
Also published as: CN119195638A

Abstract

The invention relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile drilling device for a pump station and a construction process. According to the invention, the unidirectional rotating plate I is driven to descend together when the sliding plate descends, clay between the sliding plate and the earth-discharging shell can be scraped and pushed to the lower part of the drilling barrel by the unidirectional rotating plate I, and the outside air can be discharged into the space between the drill bit and the hole bottom together when the clay is discharged to the hole bottom, so that the negative pressure strength can be reduced, the hole wall diameter reduction is avoided, the sliding plate can continuously press the clay layer by layer through the compacting plate, the clay can be blocked by the unidirectional rotating plate II when the sliding plate ascends, so that the clay can be prevented from being backfilled into the earth-discharging shell, the collapsed hole wall can be backfilled and tamped at the first time, the collapse area is prevented from being increased, the emergency treatment can be performed when the collapse hole wall and the hole wall diameter reduction occur by the pressure filling mechanism, and the subsequent drilling construction can be restored as soon as possible.

Description

Bored pile drilling device for pump station and construction process

Technical Field

The invention relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile drilling device for a pump station and a construction process.

Background

Cast-in-place piles are piles made by casting concrete or reinforced concrete into holes in place. In construction of high-rise buildings, substations, bridges, etc., it is often necessary to use cast-in-place piles. In the construction of the filling pile, the construction of the slurry wall protection impact hole-forming filling pile is a filling pile construction process which is commonly adopted at present. Slurry wall-protecting impact hole-forming filling pile the construction process depends on the dead weight of the heavy hammer the generated impact kinetic energy impacts the soil layer or breaks the rock stratum to form pile holes, and then the slag removing cylinder is used for discharging the drill slag and rock scraps. And the structure of the cast-in-place pile can directly influence the bearing capacity and shock resistance of the concrete mechanism.

If the downward flow rate of water in a borehole is too fast or the borehole speed is too fast, air in the borehole can be rapidly discharged, negative pressure can be formed, the effective stress of a borehole wall soil body can be increased by the negative pressure, so that borehole wall collapse or borehole wall diameter reduction can be caused, when the borehole wall diameter reduction or collapse occurs, the borehole is generally required to be stopped immediately, clay, rubble and the like are backfilled in the borehole, layer-by-layer tamping is performed during backfilling to prevent further collapse, however, a drilling barrel is required to be extracted from the borehole before backfilling, clay backfilling is difficult to be performed at the first time, and the negative pressure can be increased when the drilling barrel is extracted from the borehole, so that the borehole wall collapse or the borehole wall diameter reduction range is further enlarged, and the conventional bored pile drilling device lacks the function of performing emergency treatment on the borehole wall collapse caused by the negative pressure.

Disclosure of Invention

The invention aims to provide a bored pile drilling device for a pump station and a construction process, which are used for solving the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

A bored pile drilling apparatus for a pump station, comprising:

The drilling mechanism comprises a rotating cylinder, the bottom of the rotating cylinder is fixedly connected with a drilling cylinder, and the bottom of the drilling cylinder is fixedly connected with a drill bit;

the mud recycling mechanism is arranged at one side of the drilling mechanism;

the supporting mechanism is rotationally arranged outside the rotating cylinder;

The pressing mechanism is fixedly arranged inside the drilling cylinder, the pressing mechanism comprises a driving cylinder, the bottom of the driving cylinder is fixedly connected with a rotating ring, two helical teeth are symmetrically arranged on the outer wall of the rotating ring, a rotating cylinder is sleeved outside the rotating ring, a plurality of latches meshed and clamped with the helical teeth are fixedly connected to the inner wall of the rotating cylinder at equal intervals, a positioning ring is sleeved outside the rotating cylinder in a rotating mode, the positioning ring is fixedly connected with the inside of the drilling cylinder, a reciprocating spiral groove is formed in the outer wall of the rotating cylinder, a lifting ring connected with the reciprocating spiral groove in a sliding embedded mode is sleeved outside the rotating cylinder in a sliding mode, one ends of five connecting arms are fixedly connected to the top of the lifting ring at equal intervals, sliding plates are fixedly connected to the other ends of the connecting arms, and one unidirectional rotating plate is arranged on the inner wall of the sliding plate.

Further characterized in that the drilling mechanism comprises:

the first driving motor is arranged at the top end of the rotating cylinder;

the straight gear I is fixedly connected to the output end of the driving motor I;

The first toothed ring is fixedly sleeved outside the rotating cylinder and is meshed with the first spur gear;

the first auger is rotatably sleeved in the drill cylinder;

The bevel gear set is fixedly connected to the top end of a central shaft of the auger;

and the output end of the driving motor II is fixedly connected with the bevel gear set.

Further characterized in that the drilling mechanism comprises:

the fixed cylinder is fixedly connected to the central position inside the drill cylinder and is in rotary sleeve joint with the rotary ring;

the second auger is rotatably sleeved in the fixed cylinder;

The connecting shaft is fixedly connected to the central position inside the driving cylinder, the bottom end of the connecting shaft is fixedly connected with the second central shaft of the auger, and the top end of the connecting shaft is fixedly connected with the first central shaft of the auger.

Further, the slurry recovery mechanism includes:

the second toothed ring is fixedly sleeved outside the rotating cylinder;

the spur gear II is connected with the toothed ring II in a meshed manner;

the reciprocating screw rod is fixedly sleeved at the center position of the spur gear;

the cavity ring is sleeved outside the reciprocating screw rod in a screwing way, and the cavity ring is sleeved outside the rotating cylinder in a sliding way;

the spray heads are provided with five, the annular rings are fixedly connected to the outer part of the cavity ring at equal intervals, and the spray heads are communicated with the inner part of the cavity ring;

the driving block is fixedly connected to the inner wall of the cavity ring and is in sliding embedded connection with the reciprocating screw rod.

Further, the slurry recovery mechanism includes:

the clay shell is rotationally sleeved at the top end of the rotating cylinder;

one end of the first hose is fixedly connected with the side wall of the soil shell, and the first hose is communicated with the interior of the soil shell;

one end of the sand pump is fixedly connected with the other end of the hose, and the other end of the sand pump is fixedly connected with an elbow;

the filter tank is fixedly connected to the bottom of the sand pump;

the baffle is fixedly connected to the inner wall of the filter tank;

The filter blocks are provided with eight filter blocks and are fixedly connected to the partition plates at equal intervals.

Further, the slurry recovery mechanism includes:

The feeding pipe is fixedly connected to the side wall of the filter tank and is communicated with the interior of the filter tank;

the pressurizing pump is fixedly connected to the side wall of the filtering tank;

One end of the second hose is fixedly connected with the output end of the booster pump, the other end is fixedly connected with the top of the cavity ring.

Further characterized in that the support mechanism comprises:

the support frame is used for keeping the drilling mechanism and the ground vertical;

one end of the hydraulic cylinder is fixedly connected with the top of the support frame;

the telescopic column is fixedly connected to the top of the hydraulic cylinder, and the second driving motor is fixedly connected with the side wall of the telescopic column;

the lifting plate is fixedly connected to the bottom end of the telescopic column and is in rotary sleeve joint with the rotary cylinder;

the sleeve joint seat is fixedly connected to the bottom end of the hydraulic cylinder and is rotationally sleeved with the rotating cylinder.

Further, a torsion spring I is fixedly connected to the joint of the two ends of the helical tooth columns and the rotating ring.

Further, the pressure filling mechanism includes:

The positioning seat is fixedly connected to the inner wall of the sliding plate and is rotationally connected with the unidirectional rotating plate, and a torsion spring II is fixedly connected to the joint of the unidirectional rotating plate I and the positioning seat;

the barrier strip is fixedly connected to the inner wall of the sliding plate and is abutted against the top of the unidirectional rotating plate;

the soil discharging shells are provided with five, annular equidistant fixed connection is arranged in the drill cylinder, and the sliding plate is in sliding connection with the soil discharging shells;

the second unidirectional rotating plate is rotationally connected to the inner wall of the soil discharging shell, a torsion spring III is fixedly arranged at the joint of the second unidirectional rotating plate and the soil discharging shell, and a barrier strip II which is in contact with the second unidirectional rotating plate is arranged at the top of the second unidirectional rotating plate;

the compaction board is provided with five, all fixed connection in the slip board bottom.

The construction process of the bored pile drilling device for the pump station specifically comprises the following steps:

Measuring lofting, calibrating a drilling position, then burying a protective cylinder, moving the drilling device to a construction position and reinforcing the position, and extending a hydraulic cylinder to drive a sleeve seat and a rotating cylinder to descend so that a drill bit continuously drills into deeper soil;

Step two, firstly lifting stone slag and slurry generated in the drilling process into a fixed cylinder by using a screw blade, then conveying the stone slag and slurry into a rotating cylinder through a driving cylinder, and then gradually lifting the stone slag and slurry into an earth shell through a screw first, so that a drilling mechanism can timely discharge the stone slag and slurry from the bottom of a hole to the outside in the drilling process, and drill slag cleaning is completed;

Step three, a sand pump and a hose I can pump out the mud and the stone slag in the soil shell, then the mud and the stone slag are discharged into a filter tank through an elbow pipe, and the mixture of the excavated stone slag and the mud can be filtered by utilizing a filter block on a partition board in the filter tank;

step four, the rotating cylinder drives the toothed ring II and the spur gear to rotate in a meshed manner, so that the cavity ring can be driven to slide in the vertical direction along the reciprocating direction of the rotating cylinder, and in the sliding process, mud is sprayed on the hole wall through a plurality of spray heads on the outer wall of the cavity ring, so that a layer of cement is formed on the surface of the hole wall;

step five, the second driving motor, the bevel gear set and the first auger rotate anticlockwise, so that clay and rubble in the soil shell are conveniently conveyed to the bottom end of the rotating cylinder, and then the clay is respectively conveyed into the five soil discharging shells;

Step six, the lifting ring can lift reciprocally along the rotary drum, clay can flow to the unidirectional rotating plate after being extruded into the soil discharging shell, the unidirectional rotating plate is driven to descend together when the sliding plate descends, the unidirectional rotating plate can be utilized to scrape and push the clay between the sliding plate and the soil discharging shell to the position below the drilling drum, and the sliding plate can continuously press the clay downwards to be compacted layer by layer through the compacting plate.

Compared with the prior art, the invention has the beneficial effects that:

1. In the process of drilling, the drill bit utilizes auger II to advance the stone sediment and the mud that produce in the drilling process to the fixed section of thick bamboo that utilizes helical blade, then in the rotary drum is carried to through the actuating cylinder, afterwards in the earth shell is promoted gradually through auger one, thereby drilling mechanism can in time discharge stone sediment and mud to the external world from the hole bottom in the drilling process, thereby avoid the drill bit to appear blockking up, influence the construction progress, can ensure the cleanness at the hole bottom, improve the piling quality of bored concrete pile, can carry out once only and carry out drilling construction through drilling mechanism, need not regularly use and draw the stone sediment of sediment section of thick bamboo at the hole bottom and draw the discharge to the external world, the efficiency of construction of drilling has been improved.

2. The sand and stone pump and the hose I in the mud recycling mechanism can pump mud and stone slag in the mud shell out, then mud and stone slag are discharged into the filtering tank through the bent pipe, the filtering block on the partition board in the filtering tank can be used for filtering the excavated stone slag and mud mixture, mud generated after filtering can flow into the lower part of the partition board, constructors can add sand grains and the like in the feeding pipe according to the filtered mud, so that mud of different types can be conveniently prepared according to the difference of soil layers, then high-quality mud is pressurized and conveyed into the cavity ring through the booster pump and the hose II, the rotating cylinder can drive the toothed ring II and the spur gear to be meshed and rotated, so that the reciprocating screw rod is driven to rotate, the driving block on the inner wall of the cavity ring is connected with the reciprocating screw rod in a sliding embedded mode, and can drive the cavity ring to slide in the vertical direction along the rotating cylinder, and in the sliding process, mud can be sprayed out on the hole wall through a plurality of spray heads on the outer wall of the cavity ring, so that a layer of cement paste can be formed on the surface of the hole wall, the hole wall can play a role of protecting the hole wall, the hole wall can not collapse, the mud can be generated in the hole wall, the hole wall can be effectively protected, the hydrostatic pressure in the hole can be generated, the hole can be effectively collapsed, the drilling bit can be effectively cooled, the efficiency can be effectively, the underground can be saved, the underground can be recycled, the underground can be used by the drilling device can be effectively, and the cost can be effectively used, and the underground can be effectively used, and the well can be recycled, and the cost can be used.

3. The clay in the filter tank is pumped into the earth shell through the sand and stone pump, or clay or sheet stone is directly added into the earth shell, then the clay and sheet stone in the earth shell are conveniently conveyed to the bottom end of the rotating cylinder through the second driving motor, the bevel gear group and the first auger, then the clay is respectively conveyed into the five earth discharging shells, meanwhile, the driving cylinder is driven to rotate by the connecting shaft, then the driving cylinder can drive the rotating ring and the two helical tooth columns on the outer wall to simultaneously rotate anticlockwise, so that the two helical tooth columns can be clamped with clamping teeth on the inner wall of the rotating cylinder, the rotating cylinder can be driven to synchronously rotate, the lifting ring can be driven to reciprocate along the rotating cylinder, the five sliding plates can be simultaneously driven to slide downwards by the five connecting arms, the clay can flow to the unidirectional rotating plate after being extruded into the earth discharging shells, when the sliding plate descends, the first unidirectional rotating plate is driven to descend together, the first unidirectional rotating plate can be blocked from rotating upwards under the action of the barrier bars, clay between the sliding plate and the earth-discharging shell can be scraped and pushed to the lower part of the drilling cylinder by the first unidirectional rotating plate, external air can be discharged into a space between the drill bit and the hole bottom together when the clay is discharged into the hole bottom, so that the negative pressure strength can be reduced, hole wall diameter reduction is avoided, the sliding plate can be continuously pressed down to compact the clay layer by layer through the compacting plate, when the sliding plate ascends, the second unidirectional rotating plate is blocked, so that earth can be prevented from backfilling into the earth-discharging shell, the collapsed hole wall can be backfilled and compacted at the first time, the collapse area is prevented from being increased, the emergency treatment can be carried out when the hole wall collapse and the hole wall diameter reduction occur by the pressure filling mechanism, and the subsequent drilling construction can be restored as soon as possible.

Drawings

FIG. 1 is a schematic view of the overall use state structure of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the present invention;

FIG. 3 is a schematic view of a drilling mechanism according to the present invention;

FIG. 4 is a schematic view of the slurry recycling mechanism according to the present invention;

FIG. 5 is a schematic cross-sectional view of a filtration tank according to the present invention;

FIG. 6 is a schematic cross-sectional view of a cavity ring according to the present invention;

FIG. 7 is a schematic cross-sectional view of a drill pipe according to the present invention;

FIG. 8 is a schematic view of the bottom structure of the drill bit of the present invention;

FIG. 9 is a schematic diagram of a pressure filling mechanism according to the present invention;

FIG. 10 is a schematic view of a connection structure of a transfer drum according to the present invention;

FIG. 11 is a schematic view of a rotating ring connection structure in accordance with the present invention;

FIG. 12 is a schematic view of the inner wall structure of the transfer drum of the present invention;

FIG. 13 is a schematic view of a connection structure of the waste casing according to the present invention;

FIG. 14 is a schematic view of the inner wall structure of the sliding plate according to the present invention;

Fig. 15 is a schematic view showing the internal structure of the discharging casing in the present invention.

In the figure, 100 parts of drilling mechanism, 101 parts of driving motor I, 102 parts of straight gear I, 103 parts of toothed ring I, 104 parts of rotating cylinder, 105 parts of drilling cylinder, 106 parts of drill bit, 107 parts of auger I, 108 parts of bevel gear group, 109 parts of driving motor II, 110 parts of fixed cylinder, 111 parts of auger II, 112 parts of connecting shaft, 200 parts of slurry recovery mechanism, 201 parts of toothed ring II, 202 parts of straight gear II, 203 parts of reciprocating screw rod, 204 parts of cavity ring, 205 parts of nozzle, 206 parts of driving block, 207 parts of earth shell, 208 parts of hose I, 209 parts of sand pump, 210 parts of filter tank, 211 parts of baffle plate, 212 parts of filter block, 213 parts of charging tube, 214 parts of pressurizing pump, 215 parts of hose II, 300 parts of supporting mechanism, 301 parts of supporting frame, 302 parts of hydraulic cylinder, 303 parts of telescopic column, 304 parts of lifting plate, 305 parts of socket, 400 parts of filling mechanism, 401 parts of driving cylinder, 402 parts of rotating ring, 403 parts of helical gear column, 404 parts of torsion spring I, 405 parts of rotating cylinder, 407 parts of clamping ring, 408 parts of reciprocating screw rod, 408 parts of clamping ring, 409, clamping ring, 211 parts of positioning ring, 211 parts of reciprocating ring, 211 parts of baffle plate, 211 parts of spiral arm, 211, partition plate, 410, rotary plate, 411, rotary plate, and one-way.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to FIGS. 1-15, a bored pile drilling device for a pump station according to an embodiment of the present invention includes a drilling mechanism 100, wherein the drilling mechanism 100 includes a rotary drum 104, a drill drum 105 is fixedly connected to the bottom of the rotary drum 104, and a drill bit 106 is fixedly connected to the bottom of the drill drum 105; the mud recycling mechanism 200 is arranged on one side of the drilling mechanism 100, the supporting mechanism 300 is rotatably arranged on the outer side of the rotating barrel 104, the pressure filling mechanism 400 is fixedly arranged inside the drilling barrel 105, the pressure filling mechanism 400 comprises a driving barrel 401, the bottom of the driving barrel 401 is fixedly connected with a rotating ring 402, two helical teeth columns 403 are symmetrically arranged on the outer wall of the rotating ring 402, a rotating barrel 405 is sleeved on the outer side of the rotating ring 402, a plurality of clamping teeth 406 meshed and clamped with the helical teeth columns 403 are fixedly connected on the inner wall of the rotating barrel 405 in an annular equidistant manner, a positioning ring 407 is rotatably sleeved on the outer side of the rotating barrel 405, the positioning ring 407 is fixedly connected with the inner side of the drilling barrel 105, a reciprocating spiral groove 408 is formed in the outer wall of the rotating barrel 405, a lifting ring 409 which is in sliding embedded connection with the reciprocating spiral groove 408 is sleeved on the outer side of the rotating barrel 405 in a sliding manner, one ends of five connecting arms 410 are fixedly connected with the top of the annular rings, the other ends of the five connecting arms 410 are fixedly connected with sliding plates 411, and one-way rotating plates 413 are arranged on the inner wall of the sliding plates 411. The drilling mechanism 100 comprises a first driving motor 101 arranged at the top end of a rotating cylinder 104, a first spur gear 102 fixedly connected to the output end of the first driving motor 101, a first toothed ring 103 fixedly sleeved outside the rotating cylinder 104 and meshed with the first spur gear 102, a first auger 107 rotatably sleeved inside the drilling cylinder 105, a bevel gear set 108 fixedly connected to the top end of a central shaft of the first auger 107, and a second driving motor 109 fixedly connected to the bevel gear set 108. The drilling mechanism 100 comprises a fixed cylinder 110 fixedly connected to the central position inside the drilling cylinder 105, the fixed cylinder 110 is rotatably sleeved with a rotating ring 402, a second auger 111 is rotatably sleeved inside the fixed cylinder 110, a connecting shaft 112 is fixedly connected to the central position inside a driving cylinder 401, the bottom end of the connecting shaft 112 is fixedly connected with the central shaft of the second auger 111, and the top end of the connecting shaft 112 is fixedly connected with the central shaft of the first auger 107.

Specifically, the output end of the driving motor I101 in the drilling mechanism 100 drives the spur gear I102 to rotate, then the spur gear I103 and the rotating drum 104 can be driven to rotate, the rotating drum 104 drives the drilling drum 105 at the bottom and the drill bit 106 to rotate, meanwhile, the hydraulic cylinder 302 stretches to drive the sleeve seat 305 and the rotating drum 104 to descend, so that the drill bit 106 continuously drills into deeper soil, meanwhile, the output end of the driving motor II 109 drives the bevel gear group 108 to rotate, so that the central shaft of the auger I107 can be driven to rotate, and the auger I107 and the auger II 111 are fixedly connected through the connecting shaft 112, so that the auger II 111 in the fixed drum 110 can be driven to rotate clockwise together, in the drilling process of the drill bit 106, the stone slag generated in the drilling process is firstly lifted into the fixed drum 110 by using the auger II 111, then conveyed into the rotating drum 104 by the driving drum 401, and then gradually lifted into the soil shell 207 by the auger I107, so that the drilling mechanism 100 can timely discharge the stone slag and the mud from the bottom of the hole to the bottom of the pile, the pile can be prevented from being discharged, the quality of the pile can be improved, and the pile can be prevented from being discharged outside from being blocked by the pile construction, and the pile construction efficiency can be improved, and the quality can be guaranteed.

Example 1

As shown in fig. 4-6, in the present embodiment, the slurry recycling mechanism 200 includes a second toothed ring 201 fixedly sleeved on the outside of the rotating cylinder 104, a second spur gear 202 meshed with the second toothed ring 201, a reciprocating screw 203 fixedly sleeved on the center of the second spur gear 202, a cavity ring 204 rotatably sleeved on the outside of the reciprocating screw 203, the cavity ring 204 slidably sleeved on the outside of the rotating cylinder 104, five spray heads 205 disposed in five rings equidistantly fixedly connected to the outside of the cavity ring 204, the spray heads 205 communicated with the inside of the cavity ring 204, a driving block 206 fixedly connected to the inner wall of the cavity ring 204, and the driving block 206 slidably embedded with the reciprocating screw 203. The mud recycling mechanism 200 comprises an earth shell 207, a first hose 208, a sand pump 209, a filter tank 210, a baffle 211, eight filter blocks 212 and a baffle 211, wherein the earth shell 207 is rotatably sleeved on the top end of the rotary cylinder 104, one end of the first hose 208 is fixedly connected with the side wall of the earth shell 207, the first hose 208 is communicated with the interior of the earth shell 207, one end of the sand pump 209 is fixedly connected with the other end of the first hose 208, the other end of the sand pump 209 is fixedly connected with a bent pipe, the filter tank 210 is fixedly connected to the bottom of the sand pump 209, the baffle 211 is fixedly connected to the inner wall of the filter tank 210, and the eight filter blocks 212 are fixedly connected to the baffle 211 at equal intervals. The slurry recycling mechanism 200 comprises a feeding pipe 213 fixedly connected to the side wall of the filter tank 210, the feeding pipe 213 communicated with the inside of the filter tank 210, a pressurizing pump 214 fixedly connected to the side wall of the filter tank 210, and a second hose 215 with one end fixedly connected to the output end of the pressurizing pump 214 and the other end fixedly connected to the top of the cavity ring 204.

In this embodiment, the sand pump 209 and the first hose 208 in the slurry recycling mechanism 200 can pump out the slurry and the stone residue in the soil shell 207, then the slurry and the stone residue are discharged into the filtering tank 210 through the bent pipe, the mixture of the excavated stone residue and the slurry can be filtered by the filtering block 212 on the partition 211 of the filtering tank 210, the slurry generated after the filtering can flow into the lower part of the partition 211, the constructor can add sand grains and the like into the feeding pipe 213 according to the slurry after the filtering, thereby facilitating the preparation of different types of slurry according to the different soil layers, then the high-quality slurry is conveyed into the cavity ring 204 in a pressurizing manner through the pressurizing pump 214 and the second hose 215, and the rotating cylinder 104 can drive the toothed ring two 201 and the spur gear two 202 to be meshed for rotation, thus driving the reciprocating screw 203 to rotate, the driving block 206 on the inner wall of the cavity ring 204 is connected with the reciprocating screw 203 in a sliding embedded manner, so that the cavity ring 204 can be driven to slide along the rotating cylinder 104 in the vertical direction, and in the sliding process, mud is sprayed out of the hole wall through the plurality of spray heads 205 on the outer wall of the cavity ring 204, so that a layer of cement can be formed on the surface of the hole wall, the hole wall is protected from collapsing, the mud can generate larger hydrostatic pressure in the hole, the hole wall collapse can be effectively prevented, the sprayed mud can cool the drill bit 106 and the drilling cylinder 105, the service life of the drilling tool is prolonged, the underground mud can be recovered and utilized through the mud recovery mechanism 200, the utilization efficiency of natural resources is improved, and the material cost is saved.

The invention also provides a construction process of the bored pile drilling device for the pump station, which specifically comprises the following steps:

Measuring and lofting, calibrating a drilling position, burying a protective cylinder, moving the drilling device to a construction position and reinforcing the position, and extending a hydraulic cylinder 302 to drive a sleeve seat 305 and a rotating cylinder 104 to descend so that a drill bit 106 continuously drills into deeper soil;

step two, firstly, using a screw auger II 111 to lift stone slag and slurry generated in the drilling process into a fixed cylinder 110 by using a screw blade, then conveying the stone slag and slurry into a rotating cylinder 104 through a driving cylinder 401, and then gradually lifting the stone slag and slurry into an earth shell 207 through a screw auger I107, so that the stone slag and slurry can be discharged to the outside from the bottom of a hole in time in the drilling process of the drilling mechanism 100, and drill slag cleaning is completed;

Step three, a sand pump 209 and a first hose 208 can pump out the slurry and the stone slag in the soil shell 207, then the slurry and the stone slag are discharged into a filter tank 210 through an elbow pipe, and the mixture of the excavated stone slag and the slurry can be filtered by a filter block 212 on a partition 211 of the filter tank 210;

step four, the rotating cylinder 104 drives the toothed ring II 201 and the spur gear II 202 to mesh and rotate, so that the cavity ring 204 can be driven to slide along the rotating cylinder 104 in the vertical direction in a reciprocating manner, and in the sliding process, mud is sprayed on the hole wall through a plurality of spray heads 205 on the outer wall of the cavity ring 204, so that a layer of cement is formed on the surface of the hole wall;

Step five, the second motor 109, the bevel gear set 108 and the first auger 107 are driven to rotate anticlockwise, so that clay and rubble in the clay shell 207 are conveniently conveyed to the bottom end of the rotating cylinder 104, and then the clay is respectively conveyed into the five soil discharging shells 415;

Step six, the lifting ring 409 can lift reciprocally along the drum 405, the clay will flow under the unidirectional rotating plate 413 after being extruded into the dumping shell 415, when the sliding plate 411 descends, the unidirectional rotating plate 413 is driven to descend together, the unidirectional rotating plate 413 can scrape and push the clay between the sliding plate 411 and the dumping shell 415 under the drill cylinder 105, and the sliding plate 411 can continuously press the clay layer by layer through the compacting plate 417.

Example two

In the embodiment, as shown in fig. 7-15, the supporting mechanism 300 comprises a supporting frame 301 for keeping the drilling mechanism 100 and the ground vertical, a hydraulic cylinder 302 with one end fixedly connected with the top of the supporting frame 301, a telescopic column 303 fixedly connected with the top of the hydraulic cylinder 302, a driving motor II 109 fixedly connected with the side wall of the telescopic column 303, a lifting plate 304 fixedly connected with the bottom end of the telescopic column 303, the lifting plate 304 rotatably sleeved with the rotating cylinder 104, and a sleeved seat 305 fixedly connected with the bottom end of the hydraulic cylinder 302, wherein the sleeved seat 305 rotatably sleeved with the rotating cylinder 104. A torsion spring I404 is fixedly connected to the connection part between the two ends of the two helical teeth columns 403 and the rotating ring 402. The pressure filling mechanism 400 comprises a positioning seat 412 fixedly connected to the inner wall of a sliding plate 411 and rotationally connected with a first unidirectional rotating plate 413, a second torsion spring fixedly connected to the joint of the first unidirectional rotating plate 413 and the positioning seat 412, barrier strips 414 fixedly connected to the inner wall of the sliding plate 411 and abutting against the top of the first unidirectional rotating plate 413, five earth discharging shells 415 fixedly connected to the inside of a drill cylinder 105 at equal intervals in a ring shape, the sliding plate 411 and the earth discharging shells 415 in a sliding manner, a second unidirectional rotating plate 416 rotationally connected to the inner wall of the earth discharging shells 415, a third torsion spring fixedly arranged at the joint of the second unidirectional rotating plate 416 and the earth discharging shells 415, barrier strips II abutting against the second unidirectional rotating plate 416, and five compacting plates 417 fixedly connected to the bottom end of the sliding plate 411.

In specific implementation, when negative pressure is generated during drilling a soft soil layer and then hole wall collapse or hole wall diameter shrinkage is caused, firstly, the drilling operation is stopped, then clay in a filter tank 210 is pumped into a soil shell 207 through a sand pump 209, or clay or a sheet stone is directly added into the soil shell 207, then a driving motor II 109, a bevel gear group 108 and a first auger 107 are driven to rotate anticlockwise, so that the clay and the sheet stone in the soil shell 207 are conveniently conveyed to the bottom end of a rotating cylinder 104, then the clay is respectively conveyed into five soil discharging shells 415, meanwhile, a driving cylinder 401 is driven to rotate by a connecting shaft 112, then the driving cylinder 401 can drive a rotating ring 402 and two helical tooth columns 403 on the outer wall to simultaneously rotate anticlockwise, so that the two helical tooth columns 403 can keep clamped with clamping teeth 406 on the inner wall of a rotating cylinder 405, and the rotating cylinder 405 can be driven to rotate synchronously, in this way, the lifting ring 409 can be driven to lift reciprocally along the drum 405, five connecting arms 410 can simultaneously drive five sliding plates 411 to slide downwards, clay can flow to the first unidirectional rotating plate 413 after being extruded into the soil discharging shell 415, the first unidirectional rotating plate 413 is driven to descend together when the sliding plates 411 descend, the first unidirectional rotating plate 413 can be blocked to rotate upwards under the action of the barrier strips 414, clay between the sliding plates 411 and the soil discharging shell 415 can be scraped and pushed to the lower part of the drill drum 105 by the first unidirectional rotating plate 413, external air can be discharged to the space between the drill bit 106 and the hole bottom together when the clay is discharged to the hole bottom, thus the negative pressure intensity can be reduced, the hole wall diameter reduction is avoided, the sliding plates 411 can be continuously pressed down to compact the clay layer by layer through the compaction plates 417, the second unidirectional rotating plate 416 is blocked when the sliding plates 411 ascend, the clay can be prevented from backfilling into the soil discharging shell 415, therefore, clay backfilling and tamping can be performed on the collapsed hole wall at the first time, the collapse area is prevented from being increased, emergency treatment can be performed when hole wall collapse and hole wall diameter shrinkage occur by using the pressure filling mechanism 400, and the subsequent drilling construction is guaranteed to be restored as soon as possible.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. Bored concrete pile drilling equipment for pump station, its characterized in that includes:

The drilling mechanism (100), the drilling mechanism (100) comprises a rotating cylinder (104), the bottom of the rotating cylinder (104) is fixedly connected with a drilling cylinder (105), and the bottom of the drilling cylinder (105) is fixedly connected with a drill bit (106);

a slurry recovery mechanism (200) provided on one side of the drilling mechanism (100);

a supporting mechanism (300) rotatably arranged outside the rotary cylinder (104);

The pressure filling mechanism (400) is fixedly arranged inside the drilling barrel (105), the pressure filling mechanism (400) comprises a driving barrel (401), the bottom of the driving barrel (401) is fixedly connected with a rotating ring (402), two helical teeth columns (403) are symmetrically arranged on the outer wall of the rotating ring (402), a rotating barrel (405) is sleeved outside the rotating ring (402), a plurality of clamping teeth (406) meshed and clamped with the helical teeth columns (403) are fixedly connected to the inner wall of the rotating barrel (405) in an annular equidistant mode, a positioning ring (407) is sleeved outside the rotating barrel (405), the positioning ring (407) is fixedly connected with the inside of the drilling barrel (105), a reciprocating spiral groove (408) is formed in the outer wall of the rotating barrel (405), lifting rings (409) connected with the reciprocating spiral groove (408) in a sliding embedded mode are sleeved outside the rotating mode, one ends of five connecting arms (410) are fixedly connected to the top of the lifting rings at equal distances, one ends of the five connecting arms (410) are fixedly connected with sliding plates (411), and one-way rotating plates (413) are arranged on the inner wall of the sliding plates (411);

The drilling mechanism (100) comprises:

the fixed cylinder (110) is fixedly connected to the central position inside the drill cylinder (105), and the fixed cylinder (110) is rotationally sleeved with the rotating ring (402);

the second auger (111) is rotatably sleeved in the fixed cylinder (110);

the connecting shaft (112) is fixedly connected to the central position inside the driving cylinder (401), and the bottom end of the connecting shaft (112) is fixedly connected with the central shaft of the second auger (111);

The slurry recovery mechanism (200) comprises:

the second toothed ring (201) is fixedly sleeved outside the rotating cylinder (104);

The spur gear II (202) is in meshed connection with the toothed ring II (201);

the reciprocating screw rod (203) is fixedly sleeved at the center of the second spur gear (202);

the cavity ring (204) is sleeved outside the reciprocating screw rod (203) in a screwing way, and the cavity ring (204) is sleeved outside the rotating cylinder (104) in a sliding way;

The spray heads (205) are provided with five, the annular rings are fixedly connected to the outer part of the cavity ring (204) at equal intervals, and the spray heads (205) are communicated with the inner part of the cavity ring (204);

The driving block (206) is fixedly connected to the inner wall of the cavity ring (204), and the driving block (206) is in sliding embedded connection with the reciprocating screw rod (203);

The slurry recovery mechanism (200) comprises:

the soil shell (207) is rotationally sleeved at the top end of the rotating cylinder (104);

One end of the first hose (208) is fixedly connected with the side wall of the soil shell (207), and the first hose (208) is communicated with the interior of the soil shell (207);

one end of the sand pump (209) is fixedly connected with the other end of the first hose (208), and the other end of the sand pump (209) is fixedly connected with an elbow;

The filter tank (210) is fixedly connected to the bottom of the sand pump (209);

The baffle plate (211) is fixedly connected to the inner wall of the filter tank (210);

The filter blocks (212) are provided with eight, and are fixedly connected to the partition plate (211) at equal intervals;

The slurry recovery mechanism (200) comprises:

the feeding pipe (213) is fixedly connected to the side wall of the filter tank (210), and the feeding pipe (213) is communicated with the inside of the filter tank (210);

A booster pump (214) fixedly connected to the side wall of the filter tank (210);

and one end of the second hose (215) is fixedly connected with the output end of the pressurizing pump (214), and the other end of the second hose is fixedly connected with the top of the cavity ring (204).

2. A bored pile drilling apparatus for a pump station according to claim 1, wherein the drilling mechanism (100) comprises:

The first driving motor (101) is arranged at the top end of the rotating cylinder (104);

The straight gear I (102) is fixedly connected to the output end of the driving motor I (101);

the first toothed ring (103) is fixedly sleeved outside the rotating cylinder (104) and is meshed with the first spur gear (102);

The first auger (107) is rotationally sleeved in the drill cylinder (105);

the bevel gear set (108) is fixedly connected to the top end of the central shaft of the first auger (107);

and the output end of the driving motor II (109) is fixedly connected with the bevel gear set (108).

3. A bored pile drilling apparatus for a pump station according to claim 1, wherein the supporting mechanism (300) comprises:

a support (301) for holding the drilling mechanism (100) and the ground vertically;

one end of the hydraulic cylinder (302) is fixedly connected with the top of the supporting frame (301);

the telescopic column (303) is fixedly connected to the top of the hydraulic cylinder (302), and the driving motor II (109) is fixedly connected with the side wall of the telescopic column (303);

the lifting plate (304) is fixedly connected to the bottom end of the telescopic column (303), and the lifting plate (304) is rotatably sleeved with the rotating cylinder (104);

the sleeving seat (305) is fixedly connected to the bottom end of the hydraulic cylinder (302), and the sleeving seat (305) is rotatably sleeved with the rotating cylinder (104).

4. A bored pile drilling apparatus for a pump station according to claim 3, wherein a torsion spring one (404) is fixedly connected to the connection between the two ends of the two helical columns (403) and the rotary ring (402).

5. A bored pile drilling apparatus for a pump station according to claim 3, wherein the pressure filling mechanism (400) comprises:

The positioning seat (412) is fixedly connected to the inner wall of the sliding plate (411) and is rotationally connected with the unidirectional rotating plate I (413), and a torsion spring II is fixedly connected at the joint of the unidirectional rotating plate I (413) and the positioning seat (412);

the baffle strip (414) is fixedly connected to the inner wall of the sliding plate (411) and is abutted against the top of the unidirectional rotating plate I (413);

The soil discharging shells (415) are provided with five annular equidistant fixed connection inside the drill cylinder (105), and the sliding plate (411) is in sliding connection with the soil discharging shells (415);

the second unidirectional rotating plate (416) is rotationally connected to the inner wall of the soil discharging shell (415), a torsion spring III is fixedly arranged at the joint of the second unidirectional rotating plate and the soil discharging shell (415), and a barrier strip II which is in contact with the second unidirectional rotating plate is arranged at the top of the second unidirectional rotating plate (416);

The compaction plates (417) are provided with five compaction plates which are fixedly connected to the bottom ends of the sliding plates (411).

6. The construction process of a bored pile drilling device for a pump station according to claim 5, which is characterized by comprising the following steps:

Measuring lofting, calibrating a drilling position, burying a protective cylinder, moving the drilling device to a construction position and reinforcing the position, and extending a hydraulic cylinder (302) to drive a sleeve seat (305) and a rotating cylinder (104) to descend so that a drill bit (106) continuously drills into deeper soil;

Step two, firstly, stone slag and slurry generated in the drilling process are lifted into a fixed cylinder (110) by using a screw blade by using a screw auger II (111), then are conveyed into a rotating cylinder (104) by a driving cylinder (401), and then are gradually lifted into an earth shell (207) by a screw auger I (107), so that the stone slag and slurry can be discharged to the outside from the bottom of a hole in time by using a drilling mechanism (100) in the drilling process, and drill slag cleaning is completed;

pumping out the mud and the stone slag in the soil shell (207) by a sand pump (209) and a first hose (208), then discharging the mud and the stone slag into a filter tank (210) through a bent pipe, and filtering the excavated stone slag and mud mixture by using a filter block (212) on a partition plate (211) of the filter tank (210);

Step four, the rotating cylinder (104) drives the toothed ring II (201) and the spur gear II (202) to be meshed and rotated, the driving cavity ring (204) slides in the vertical direction along the rotating cylinder (104) in a reciprocating manner, and in the sliding process, mud is sprayed onto the hole wall through a plurality of spray heads (205) on the outer wall of the cavity ring (204), so that a layer of cement is formed on the surface of the hole wall;

Step five, the second motor (109), the bevel gear set (108) and the first auger (107) are driven to rotate anticlockwise, so that clay and rubble in the clay shell (207) are conveniently conveyed to the bottom end of the rotating cylinder (104), and then the clay is respectively conveyed into the five soil discharging shells (415);

Step six, the lifting ring (409) can lift reciprocally along the rotary drum (405), clay can flow under the unidirectional rotating plate I (413) after being extruded into the soil discharging shell (415), when the sliding plate (411) descends, the unidirectional rotating plate I (413) is driven to descend together, the unidirectional rotating plate I (413) is utilized to scrape and push the clay between the sliding plate (411) and the soil discharging shell (415) to the lower part of the drilling cylinder (105), and the sliding plate (411) can continuously press the clay layer by layer through the compacting plate (417).