CN112096326B - Device and method for removing mud in cast-in-situ bored pile hole - Google Patents
Device and method for removing mud in cast-in-situ bored pile hole Download PDFInfo
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- CN112096326B CN112096326B CN202010990568.8A CN202010990568A CN112096326B CN 112096326 B CN112096326 B CN 112096326B CN 202010990568 A CN202010990568 A CN 202010990568A CN 112096326 B CN112096326 B CN 112096326B
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- pile
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Abstract
The application relates to a device and a method for removing mud in a bored pile hole, which comprises a plugging device arranged at one end of a pile casing inserted into the pile hole and a mud suction pump arranged at the other end of the pile casing, wherein the mud suction pump is connected with a mud suction pipe extending into the bottom end of the pile casing, the plugging device comprises a sleeve ring and a fixed part arranged in the sleeve ring, the movable part, the lantern ring cup joints the one end at protecting a section of thick bamboo, it is provided with the communicating pipe that sets up along protecting a section of thick bamboo axial direction to protect a section of thick bamboo outside, communicating pipe begins to extend the setting to the other end from the one end that is provided with the dredge pump, threaded connection has the bolt spare in communicating pipe, bolt spare and lantern ring spiro union, there is a intercommunication mouth between the fixed part lantern ring inner wall, the movable part rotates with the fixed part to be connected, be connected with the driving piece that drives movable part switching intercommunication mouth in the movable part, it has the shutoff frame to peg graft in the intercommunication mouth, the shutoff frame is connected with the action bars, the one end of action bars stretches out to protect a section of thick bamboo and is provided with the one end of dredge pump. The method has the advantages of effectively removing slurry in the soft soil foundation pile hole and improving pile forming quality.
Description
Technical Field
The application relates to the technical field of cast-in-situ bored pile construction, in particular to a device and a method for removing mud in a hole of a cast-in-situ bored pile.
Background
The cast-in-situ bored pile is used as one of pile foundations, and the application range of the cast-in-situ bored pile is very wide.
Generally, the construction process of the cast-in-situ bored pile includes the following steps:
the method comprises the following steps: drilling to form pile holes;
step two: inserting the pile casing into the pile hole;
step three: removing mud in the hole;
step four: pouring concrete;
step five: and (5) pulling out the sleeve.
In view of the above-mentioned related technologies, the inventor believes that during construction on a soft soil foundation, in the process of cleaning the slurry in the casing, the slurry can continuously enter the casing from the soft soil at the lower end of the casing, so that the slurry in the casing is difficult to clean, and when concrete is injected into the casing, the quality of a formed pile is reduced due to mixing of the concrete and impurities in the slurry.
Disclosure of Invention
In order to more effectively remove the slurry in the pile hole of the foundation pile in the soft soil and improve the pile forming quality, the application provides a device and a method for removing the slurry in the pile hole of the cast-in-situ bored pile.
On the one hand, this application clears away device of downthehole mud of bored concrete pile adopts following technical scheme: comprises a plugging device sleeved at one end of a pile hole inserted into a pile casing and a dredge pump arranged at the other end of the pile casing, the mud suction pump is connected with a mud suction pipe extending into the bottom end of the protective cylinder, the plugging device comprises a lantern ring, a fixed part and a movable part which are arranged in the lantern ring, the lantern ring is sleeved at one end of the protective cylinder, a communicating pipe arranged along the axial direction of the protective cylinder is arranged at the outer side of the protective cylinder, the communicating pipe extends from one end provided with the dredge pump to the other end, a bolt piece is screwed in the communicating pipe, the bolt is in threaded connection with the lantern ring, a communication port is arranged between the inner walls of the lantern rings of the fixed part, the movable part is rotationally connected with the fixed part, the movable part is connected with a driving piece for driving the movable part to open and close the communication port, a plugging frame is inserted in the communication port, the plugging frame is connected with an operating rod, and one end of the operating rod extends out of one end of the protective cylinder, which is provided with a mud pump.
By adopting the technical scheme, the following construction steps are carried out after the pile hole is formed by drilling:
the method comprises the following steps: pushing the movable part into the accommodating cavity, and inserting the plugging frame into the communication port;
step two: inserting one end of the pile casing connected with the plugging device into the pile hole;
step three: when the plugging device contacts the bottom end of the pile hole, the operating rod is pulled out of the pile casing;
step four: sucking out the muddy water in the pile casing by using a dredge pump;
step five: pouring concrete into the pile casing;
step six: rotating the bolt piece to separate the plugging device from the pile casing;
step seven: and pulling the pile casing out of the pile hole.
When the plugging frame is positioned in the communication port, slurry in the pile hole can enter the pile casing through the plugging frame in the process that the pile casing enters the pile hole. In the third step, the operating rod is pulled out of the protective cylinder, the plugging frame can also withdraw from the communication port, and at the moment, the movable part rotates under the action of the driving part to shield the communication port, so that the slurry outside the protective cylinder is reduced from entering the protective cylinder. And further, the mud pump can be used for more thoroughly removing the mud in the casing in the fourth step.
In the fifth step, because the mud in the casing is cleaned, the concrete can be less mixed with the mud when the concrete is poured into the casing. In the sixth step, the plugging device is separated from the pile casing, so that in the seventh step, the plugging device is subjected to the pressure of the concrete in the pile casing and is continuously remained in the pile hole, the plugging device is separated from the pile casing, and only the pile casing is pulled out of the pile hole.
Optionally: the connecting pipe is only provided with a section of internal thread at one end close to the plugging device, one end of the bolt piece penetrates out of the connecting pipe to be in threaded connection with the lantern ring, and the other end of the bolt piece is positioned outside the connecting pipe.
Through adopting above-mentioned technical scheme, only set up the internal thread in the one end that is close to the plugging device of communicating pipe to reduce bolt spare and communicating pipe spiro union area, thereby made the bolt spare rotate in communicating pipe more easily.
Optionally: the fixed part is for being greater than half plectane, the global butt of fixed part in the inner wall of the lantern ring, with the fixed part in the coplanar surplus lower part be the intercommunication mouth, the pars pleiotidis is for being less than half plectane, be formed with one in the fixed part and be used for holding the chamber that holds of pars pleiotidis, the thickness of fixed part is greater than the thickness of pars pleiotidis, the opening that holds the chamber is located the fixed part is in the one of them face of intercommunication mouth, the coaxial swing joint of fixed part and pars pleiotidis, the driving piece is for setting up it holds the elastic component of intracavity wall and pars pleiotidis and activity to hold the connection of intracavity.
Through adopting above-mentioned technical scheme, the movable part can rotate and be accomodate in holding the chamber to master's father's movable part is difficult to impaired. After the plugging frame exits from the communicating opening, the movable part can rotate under the action of the elastic piece and plug the communicating opening.
Optionally: and a filter screen is arranged on the inner side of the plugging frame.
Through adopting above-mentioned technical scheme, because the existence of filter screen, in the in-process of inserting the pile casing into the stake hole, reduce the impurity in the mud and get into in the pile casing. Therefore, when the suction dredge works, the blockage is not easy to happen.
Optionally: the plugging frame is provided with an outward flange which is abutted against the surface of the fixing part facing the inner side of the protection cylinder.
Through adopting above-mentioned technical scheme, turn-ups and fixed part butt to make the shutoff frame can be more stable be in the intercommunication mouth.
Optionally: the surface of the movable part is provided with a rubber layer.
Through adopting above-mentioned technical scheme, the setting up of rubber layer makes can inseparabler when the movable part contacts with the inner wall of intercommunication mouth, and when the movable part shielded the intercommunication mouth, further mud that the suppression protected the outside section of thick bamboo enters into in protecting the section of thick bamboo.
Optionally: the inner wall of the protective cylinder is provided with a buckle, and the operating rod is clamped in the buckle.
Through adopting above-mentioned technical scheme, the action bars joint is in the buckle to make the action bars be difficult to rock, and then make that the shutoff frame can be more stable be in the intercommunication mouth.
On the other hand, the method for removing the mud in the cast-in-situ bored pile hole adopts the following technical scheme, and comprises the following steps after the pile hole is formed by drilling:
the method comprises the following steps: pushing the movable part into the accommodating cavity, and inserting the plugging frame into the communication port;
step two: inserting one end of the pile casing connected with the plugging device into the pile hole;
step three: when the plugging device contacts the bottom end of the pile hole, the operating rod is pulled out of the pile casing;
step four: sucking out the muddy water in the pile casing by using a dredge pump;
step five: pouring concrete into the pile casing;
step six: rotating the bolt piece to separate the plugging device from the pile casing;
step seven: and pulling the pile casing out of the pile hole.
Through adopting above-mentioned technical scheme, when the shutoff frame was located the intercommunication mouth, at the in-process that the pile casing entered into the stake hole, the downthehole mud of stake can enter into to protect in the section of thick bamboo through the shutoff frame. In the third step, the operating rod is pulled out of the protective cylinder, the plugging frame can also withdraw from the communication port, and at the moment, the movable part rotates under the action of the driving part to shield the communication port, so that the slurry outside the protective cylinder is reduced from entering the protective cylinder. And further, the mud pump can be used for more thoroughly removing the mud in the casing in the fourth step.
In summary, the present application has the following beneficial effects:
1. when the plugging frame is positioned in the communication port, slurry in the pile hole can enter the pile casing in the process that the pile casing enters the pile hole. Because the operating rod is pulled out of the protective cylinder, the plugging frame can also withdraw from the communication port, and at the moment, the movable part rotates under the action of the driving part to shield the communication port, so that the slurry outside the protective cylinder is reduced from entering the protective cylinder. Thereby enabling the mud in the pile casing to be more thoroughly removed by using a mud pump;
2. the internal thread is arranged at one end, close to the plugging device, of the communicating pipe, so that the screwing area of the bolt and the communicating pipe is reduced, and the bolt can rotate in the communicating pipe more easily;
3. activity portion can rotate and be accomodate in holding the chamber to master's activity portion is difficult to impairedly. After the plugging frame exits from the communicating opening, the movable part can rotate under the action of the elastic piece and plug the communicating opening.
Drawings
FIG. 1 is a schematic overall structure of the present application;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
figure 3 is a schematic view of an explosive structure of the occluder, occluding assembly and locking assembly;
fig. 4 is a schematic sectional view of the fixed part and the movable part.
Reference numerals: 1. protecting the cylinder; 2. an occluder; 21. a collar; 22. a fixed part; 221. a communication port; 222. an accommodating chamber; 23. a movable portion; 24. a drive member; 3. a dredge pump; 31. a mud suction pipe; 4. a plugging component; 41. plugging the frame; 411. corner edges; 412. an arc-shaped edge; 413. flanging; 42. an operating lever; 43. buckling; 44. a filter screen; 5. a locking assembly; 51. a communicating pipe; 52. a bolt member.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
As shown in fig. 1, the device for removing mud in a borehole of a bored pile disclosed in the present application includes a plugging device 2 sleeved on one end of a casing 1, and a mud pump 3 disposed at the other end of the casing 1. The end of the pile casing 1 provided with the plugging device 2 is inserted into the pile hole, the end of the pile casing 1 provided with the dredge pump 3 is arranged outside the pile hole, and the dredge pump 3 is connected with a dredge pipe 31 extending into the bottom of the pile casing 1.
As shown in fig. 2 and 3, the occluder 2 includes a collar 21, and a fixed portion 22 and a movable portion 23 provided in the collar 21. The lantern ring 21 is sleeved at one end of the casing 1 and is detachably connected with the casing 1 through the locking assembly 5. The fixing portion 22 is a circular plate two-thirds large, the circumferential surface of the fixing portion 22 is fixed in contact with the inner wall of the collar 21, and the remaining portion between the fixing portion 22 and the inner wall of the casing 1 is a communication port 221. The movable portion 23 is a one-third large circular plate, and the fixed portion 22 is connected to the movable portion 23 coaxially and rotatably. A receiving cavity 222 is formed in the fixed part 22, and the thickness of the fixed part 22 is greater than that of the movable part 23. The opening of the accommodating chamber 222 is located on one of the faces of the fixed portion 22 facing the communication port 221, and the movable portion 23 can exit or enter the accommodating chamber 222 by way of rotation. Within the accommodation chamber 222 is disposed a driving member 24 connecting the inner wall of the accommodation chamber 222 and the movable portion 23, the driving member 24 being an elastic member such as a spring, an elastic metal sheet, in this example shown as a spring. Under the action of the elastic member, the movable portion 23 has a tendency to retreat from the accommodation chamber 222 and to close the communication port 221. The movable part 23 enters the plugging opening for plugging the plugging opening, and a rubber layer is further arranged on the surface of the movable part 23 for submitting a plugging effect.
The blocking assembly 4 is arranged in the communication port 221, the blocking assembly 4 comprises a blocking frame 41 and an operating rod 42, the blocking frame 41 comprises two corner edges 411 and an arc edge 412, and the overall shape of the blocking frame 41 is adapted to the communication port 221. The filter screen 44 is provided inside the sealing frame 41, the flanges 413 are formed on the two corner edges 411 of the sealing frame 41, and when the sealing frame 41 is positioned in the communication port 221, the flanges 413 abut against the surface of the fixing portion 22 facing the inside of the casing 1. The operating rod 42 is fixedly connected with the arc-shaped edge 412 of the plugging frame 41, and the operating rod 42 is arranged along the length direction of the pile casing 1.
A buckle 43 is fixed on one end of the inner wall of the protective cylinder 1 close to the suction pump 3, the buckle 43 is an elastic ring three-thirds large, and the operating rod 42 is clamped in the elastic ring. The operating rod 42 is clamped in the buckle 43, so that the operating rod 42 is not easy to shake, and the blocking frame 41 can be located in the communication opening 221 more stably.
As shown in fig. 2 and 3, the locking assembly 5 includes a communication pipe 51 and a bolt member 52 located inside the communication pipe 51. Communication pipe 51 is fixed to the outer side of casing 1, and communication pipe 51 is provided along the axial direction of casing 1, and communication pipe 51 is provided one at each of the radial both ends of casing 1. The communication pipe 51 extends from the end of the casing 1 where the dredge pump 3 is provided to the other end, and an internal thread is provided only in the end of the communication pipe 51 near the stopper 2. The bolt member 52 is screwed into the communication pipe 51, and one end of the bolt member 52 penetrates the communication pipe 51 to be screwed with the collar 21, and the other end of the bolt member 52 is located outside the communication pipe 51.
As shown in fig. 3 and 4, the method for removing mud from the inner wall of the cast-in-situ bored pile casing 1 disclosed in the present application includes the following steps after a pile hole is formed by drilling:
the method comprises the following steps: pushing the movable portion 23 into the accommodation chamber 222, and inserting the plugging frame 41 into the communication port 221;
step two: the end of the pile casing 1 connected with the plugging device 2 is inserted into the pile hole, at this time, when the pile casing 1 enters the pile hole because the plugging frame 41 is located in the communication port 221, slurry in the pile hole enters the pile casing 1 through the plugging frame 41, and the pile casing 1 can be smoothly inserted into the pile hole. However, the slurry entering the casing 1 is filtered by the filter screen 44, so that the foreign matters entering the casing 1 are reduced;
step three: when the plugging device 2 contacts the bottom end of the pile hole, the operating rod 42 is pulled out of the pile casing 1, and the plugging frame 41 also exits from the communication port 221 as the operating rod 42 is pulled out of the pile casing 1, at the moment, the movable part 23 rotates under the action of the elastic piece to shield the communication port 221, so that mud outside the pile casing 1 is prevented from entering the pile casing 1;
step four: the mud pump 3 and the mud pipe 31 are used for sucking out mud water in the pile casing 1, and the communication port 221 is blocked, so that mud outside the pile casing 1 is inhibited from entering the pile casing 1 in the mud removing process of the mud pump 3, and the mud in the pile casing 1 can be completely removed;
step five: the concrete is poured into the pile casing 1, and because the mud in the pile casing 1 is cleaned up, the concrete can be less mixed with the mud when the concrete is poured into the pile casing 1;
step six: rotating the bolt piece 52 to separate the bolt piece 52 from the collar 21, and further to separate the stopper 2 from the casing 1;
step seven: the pile casing 1 is pulled out from the pile hole, the plugging device 2 can be continuously remained in the pile hole under the pressure of concrete in the pile casing 1, so that the plugging device 2 is separated from the pile casing 1, only the pile casing 1 is pulled out from the pile hole, and the concrete forms a pile body in the pile hole.
In conclusion, the plugging device 2 detachably connected to the pile casing 1 is arranged, and slurry is thoroughly removed before concrete is injected into the pile casing 1, so that the mixing of the concrete and the slurry is reduced, and the pile forming quality in a pile hole is improved.
The embodiments of the present invention are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. Clear away device of downthehole mud of drilling bored concrete pile, characterized by: the device comprises a plugging device (2) sleeved on one end of a pile hole inserted into a pile casing (1) and a mud sucking pump (3) arranged at the other end of the pile casing (1), wherein the mud sucking pump (3) is connected with a mud sucking pipe (31) extending into the bottom end of the pile casing (1), the plugging device (2) comprises a lantern ring (21), a fixed part (22) and a movable part (23) which are arranged in the lantern ring (21), the lantern ring (21) is sleeved at one end of the pile casing (1), a communicating pipe (51) arranged along the axial direction of the pile casing (1) is arranged on the outer side of the pile casing (1), the communicating pipe (51) extends from one end provided with the mud sucking pump (3) to the other end, a bolt piece (52) is screwed in the communicating pipe (51), the bolt piece (52) is screwed with the lantern ring (21), and a communicating port (221) is arranged between the fixed part (22) and the inner wall of the lantern ring (21), the movable part (23) is rotatably connected with the fixed part (22), a driving part (24) for driving the movable part (23) to open and close the communication port (221) is connected to the movable part (23), a plugging frame (41) is inserted into the communication port (221), the plugging frame (41) is connected with an operating rod (42), and one end of the operating rod (42) extends out of one end of the pile casing (1) where the mud suction pump (3) is arranged; the connecting pipe (51) is only provided with a section of internal thread at one end close to the plugging device (2), one end of the bolt piece (52) penetrates through the connecting pipe (51) to be in threaded connection with the lantern ring (21), and the other end of the bolt piece (52) is positioned outside the connecting pipe (51); fixed part (22) are for being greater than half plectane, the global butt in the inner wall of lantern ring (21) of fixed part (22), with fixed part (22) with the plane in remaining lower part be intercommunication mouth (221), movable part (23) are for being less than half plectane, be formed with one in fixed part (22) and be used for holding chamber (222) of movable part (23), the thickness of fixed part (22) is greater than the thickness of movable part (23), the opening that holds chamber (222) is located fixed part (22) is facing one of them face of intercommunication mouth (221), fixed part (22) and the coaxial swing joint of movable part (23), driving piece (24) are for setting up hold chamber (222) in-connection and hold the elastic component of chamber (222) inner wall and movable part (23).
2. The apparatus for removing mud from a bore of a bored pile according to claim 1, wherein: and a filter screen (44) is arranged on the inner side of the plugging frame (41).
3. The apparatus for removing mud from a bore of a bored pile according to claim 2, wherein: an outward flanging (413) is arranged on the plugging frame (41), and the flanging (413) is abutted to the surface, facing the inner side of the protective sleeve (1), of the fixing part (22).
4. The apparatus for removing mud from a bore of a bored pile according to claim 1, wherein: the surface of the movable part (23) is provided with a rubber layer.
5. The apparatus for removing mud from a bore of a bored pile according to claim 1, wherein: a buckle (43) is arranged on the inner wall of the protective cylinder (1), and the operating rod (42) is clamped in the buckle (43).
6. A method of removing mud from a bore of a cast-in-situ bored pile using the apparatus for removing mud from a bore of a cast-in-situ bored pile according to any one of claims 1 to 5, wherein:
the method comprises the following steps after pile holes are drilled:
the method comprises the following steps: pushing the movable portion (23) into the accommodation cavity (222), and inserting the blocking frame (41) into the communication opening (221);
step two: inserting one end of the pile casing (1) connected with the plugging device (2) into the pile hole;
step three: when the plugging device (2) contacts the bottom end of the pile hole, the operating rod (42) is pulled out of the pile casing (1);
step four: the mud pump (3) is used for sucking out mud water in the protective cylinder (1);
step five: pouring concrete into the pile casing (1);
step six: rotating the bolt piece (52) to separate the plugging device (2) from the protective cylinder (1);
step seven: and pulling the pile casing (1) out of the pile hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990568.8A CN112096326B (en) | 2020-09-19 | 2020-09-19 | Device and method for removing mud in cast-in-situ bored pile hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990568.8A CN112096326B (en) | 2020-09-19 | 2020-09-19 | Device and method for removing mud in cast-in-situ bored pile hole |
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| Publication Number | Publication Date |
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| CN112096326A CN112096326A (en) | 2020-12-18 |
| CN112096326B true CN112096326B (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010990568.8A Active CN112096326B (en) | 2020-09-19 | 2020-09-19 | Device and method for removing mud in cast-in-situ bored pile hole |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057082A (en) * | 1990-06-04 | 1991-12-18 | 俞晓 | The dry type steel basket soil basketing method and the device thereof of castinplace pile |
| CN102383421A (en) * | 2011-08-30 | 2012-03-21 | 李征 | Earth discharging pile-forming device arranged at bottom end of synchronous earth-taking pouring pile body vibration sinking pipe and method |
| CN105442532A (en) * | 2015-11-19 | 2016-03-30 | 杭州江润科技有限公司 | Construction method for pile-head-expanded bored pile |
| CN110761280A (en) * | 2019-11-11 | 2020-02-07 | 向怀轶 | Reduce thick liquid outflow high pressure jet grouting stake slip casting pipe block structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10487587B2 (en) * | 2017-06-26 | 2019-11-26 | Schlumberger Technology Corporation | Methods for drilling and producing a surface wellbore |
-
2020
- 2020-09-19 CN CN202010990568.8A patent/CN112096326B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057082A (en) * | 1990-06-04 | 1991-12-18 | 俞晓 | The dry type steel basket soil basketing method and the device thereof of castinplace pile |
| CN102383421A (en) * | 2011-08-30 | 2012-03-21 | 李征 | Earth discharging pile-forming device arranged at bottom end of synchronous earth-taking pouring pile body vibration sinking pipe and method |
| CN105442532A (en) * | 2015-11-19 | 2016-03-30 | 杭州江润科技有限公司 | Construction method for pile-head-expanded bored pile |
| CN110761280A (en) * | 2019-11-11 | 2020-02-07 | 向怀轶 | Reduce thick liquid outflow high pressure jet grouting stake slip casting pipe block structure |
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| CN112096326A (en) | 2020-12-18 |
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