CN112030972A - Secondary hole cleaning device and method for cast-in-place pile - Google Patents
Secondary hole cleaning device and method for cast-in-place pile Download PDFInfo
- Publication number
- CN112030972A CN112030972A CN202010752262.9A CN202010752262A CN112030972A CN 112030972 A CN112030972 A CN 112030972A CN 202010752262 A CN202010752262 A CN 202010752262A CN 112030972 A CN112030972 A CN 112030972A
- Authority
- CN
- China
- Prior art keywords
- compressed air
- cast
- hole
- guide pipe
- place pile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/08—Removing obstacles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a secondary hole cleaning device and a secondary hole cleaning method for a cast-in-place pile, which comprise the following steps: the device comprises a mobile operating platform, a compressed air generating device and a compressed air conveying pipe; the movable operation platform is provided with a mounting hole so as to lower the concrete pouring guide pipe into the hole of the pouring pile; the output end of the compressed air generating device is communicated with one end of a compressed air conveying pipe reserved at the top of the guide pipe and used for conveying compressed air into the guide pipe, so that sediments at the bottom of the drill hole and garbage in mud liquid are discharged out of the drill hole through the concrete pouring guide pipe. According to the secondary hole cleaning device for the cast-in-place pile, the platform for installing the guide pipe is provided for operating personnel through the movable operating platform, and the compressed air is conveyed into the guide pipe through the compressed air generating device, so that sediments at the bottom of the drill hole and garbage in mud liquid are discharged out of the drill hole through the concrete cast-in-place guide pipe, the secondary hole cleaning efficiency is greatly improved, and the pile forming quality at the bottom of the drill hole is favorably ensured.
Description
Technical Field
The invention relates to the technical field of construction of cast-in-place concrete piles, in particular to a secondary hole cleaning device and method for cast-in-place piles.
Background
The secondary hole cleaning is used as a key process in the construction process of the cast-in-place pile, and whether the hole cleaning is clean or not directly influences the pile forming quality of the cast-in-place pile. The traditional secondary hole cleaning method comprises a positive circulation mode, a pumping reverse circulation mode and the like, and a secondary hole cleaning system comprises a mud pool, a sedimentation pool, a mud circulation groove, a mud pump and the like. The mud sedimentation tank, the mud circulation tank and the mud sedimentation tank are generally 1.5-2.0 times of the volume of the drilled hole. The secondary hole cleaning generally adopts an 18 KW-25 KW mud pump, sediments in holes are discharged through slurry replacement, general silt and stone residues can be discharged from the holes in time, the pile holes penetrate through a household garbage stratum, household garbage is contained in the holes, the 18 KW-25 KW mud pump cannot discharge the garbage in the holes in time, and the construction period is delayed due to the fact that the garbage blocks a guide pipe in the working process of the mud pump, or even the holes are collapsed to cause scrapping of drilling.
Disclosure of Invention
In view of this, the invention provides a secondary hole cleaning device and method for a cast-in-place pile, and aims to solve the problems of low secondary hole cleaning efficiency and poor quality of hole bottom pile forming in the prior art.
The invention provides a secondary hole cleaning device for a cast-in-place pile, which comprises: the device comprises a mobile operating platform, a compressed air generating device and a compressed air conveying pipe; the movable operation platform is provided with a mounting hole for placing the concrete pouring guide pipe into the drill hole; one end of the compressed air conveying pipe is inserted into the concrete pouring guide pipe, and the output end of the compressed air generating device is communicated with the other end of the compressed air conveying pipe and used for conveying compressed air into the guide pipe, so that sediments at the bottom of the drill hole and garbage in slurry are discharged out of the drill hole through the concrete pouring guide pipe.
Further, in the above cast-in-place pile secondary hole cleaning device, the compressed air generating device includes: an electric generator and an air compressor; the generator is electrically connected with the air compressor and used for providing electric energy for the air compressor.
Further, in the above-mentioned bored concrete pile secondary clear hole device, the mobile operation platform includes: two main beams, a plurality of secondary beams and a conduit fixing component; the two main beams are arranged in parallel, and the secondary beams are arranged between the two main beams at intervals and used for providing a standing platform for constructors; each secondary beam is divided into two groups along the length direction of the main beam, and an installation part is arranged between the two groups of secondary beams; the guide pipe fixing component is arranged in the mounting part in a reversible manner, and an openable mounting hole is formed in the guide pipe fixing component and used for fixing the concrete pouring guide pipe.
Further, in the above cast-in-place pile secondary hole cleaning device, the guide pipe fixing member includes: a first connecting plate and a second connecting plate; the first connecting plate and the second connecting plate are arranged oppositely, and the first connecting plate and the second connecting plate are connected to the main beam in a turnover mode; the first connecting plate is provided with a first notch, the second connecting plate is provided with a second notch, and the first notch and the second opening are in butt joint to form a concrete pouring conduit mounting hole.
Further, in the above cast-in-place pile secondary hole cleaning device, pull rings are respectively arranged on the first connecting plate and the second connecting plate so as to turn over the first connecting plate and the second connecting plate.
Further, in the above cast-in-place pile secondary hole cleaning device, the first connecting plate and the second connecting plate are connected to the main beam in a reversible manner through a sleeve assembly.
Further, in the above-mentioned bored concrete pile secondary hole cleaning device, the sleeve assembly includes: the two sleeves and the two rotating shafts are correspondingly arranged; the rotating shaft is arranged on the main beam, the sleeves are arranged at two ends, close to one side of the secondary beam, of the first connecting plate or the second connecting plate, and the sleeves are rotatably sleeved on the rotating shaft.
The invention also provides a secondary hole cleaning method for the cast-in-place pile, which comprises the following steps: step 1, after hole cleaning is carried out for one time, placing a reinforcement cage in a drilled hole, and then placing an operation platform on a protective cylinder in the drilled hole; step 2, placing the cast-in-place pile guide pipe in an installation hole on the operation platform, installing the vertical section of the cast-in-place pile guide pipe in sections, and keeping the length of the vertical section consistent with the depth of a drilled hole; step 3, after the vertical section of the cast-in-place pile guide pipe is placed, placing a compressed air conveying pipe inside the vertical section of the cast-in-place pile guide pipe, keeping a preset distance between the compressed air conveying pipe and the bottom of the drilled hole, and after the compressed air conveying pipe is installed, installing the horizontal section of the cast-in-place pile guide pipe; and 4, turning on the compressed air generating device for a preset time, then turning off the compressed air generating device, measuring the sediment and garbage conditions at the bottom of the drilled hole, if the hole cleaning effect is not obvious, continuing turning on the compressed air generating device until the pile bottom is clean and free of garbage, and then detaching the horizontal section of the cast-in-place pile guide pipe and the compressed air conveying pipe.
Further, in the above secondary hole cleaning method for the cast-in-place pile, in step 3, the distance between the compressed air delivery pipe and the bottom of the drilled hole is kept at 3-6 m.
Further, in the above secondary hole cleaning device for cast-in-place piles, after step 4, the secondary hole cleaning device further includes: and controlling the distance between the vertical section of the cast-in-place pile guide pipe and the bottom of the drilled hole to be 30 cm-50 cm, and installing a blanking groove at the top of the vertical section of the cast-in-place pile guide pipe so as to pour concrete into the pile hole.
In the invention, the operating platform is moved to provide a platform for installing the guide pipe for operators, and the compressed air is conveyed into the guide pipe through the compressed air generating device, so that sediments at the bottom of the drill hole and garbage in mud liquid are discharged out of the drill hole through the concrete pouring guide pipe, the secondary hole cleaning efficiency is greatly improved, and the pile forming quality at the bottom of the drill hole is favorably ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a secondary hole cleaning device for a cast-in-place pile according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an operation platform in the cast-in-place pile secondary hole cleaning device provided in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of an operation platform in the secondary hole cleaning device for cast-in-place piles according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of an operation platform in the secondary hole cleaning device for a cast-in-place pile according to the embodiment of the present invention;
fig. 5 is a schematic flow chart of a secondary hole cleaning method for a cast-in-place pile according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the secondary hole cleaning device for the cast-in-place pile according to the embodiment of the present invention includes: the device comprises a mobile operating platform 1, a compressed air generating device 2 and a compressed air conveying pipe 3; the mobile operation platform 1 is provided with a mounting hole a for placing the concrete pouring guide pipe into a drill hole; one end of the compressed air conveying pipe is inserted into the concrete pouring guide pipe, and the output end of the compressed air generating device 2 is communicated with the other end of the compressed air conveying pipe and used for conveying compressed air into the guide pipe, so that sediments at the bottom of the drill hole and garbage 8 in mud liquid are discharged out of the drill hole through the concrete pouring guide pipe.
Specifically, the compressed air generating apparatus 2 includes: a generator 21 and an air compressor 22; the generator 21 is electrically connected with the air compressor 22 to provide electric energy for the air compressor 22, so that compressed air is injected into the concrete pouring conduit 4 through the compressed air delivery pipe 3 by the air compressor 22, and sediments at the bottom of the drill hole and garbage in mud liquid are discharged out of a sedimentation tank outside the drill hole through the conduit 4 by the compressed air.
The air compressor 22 is communicated with the compressed air delivery pipe 3 through a rubber inner rib steel pipe 5. The compressed air delivery pipe 3 may be inserted inside the cast-in-place pile guide 4 through a joint welded to the top of the cast-in-place pile guide 4.
The bottom of the compressed air conveying pipe 3 is a preset distance away from the bottom of the drill hole. For example, a distance of about 5 m.
The movable operating platform 1 is provided with a mounting hole for mounting a concrete pouring conduit 4. After the drilling operation is finished, the mobile operation platform 1 is hoisted to the next drilling hole for drilling operation.
The aforesaid obviously can derive, the clear hole device of bored concrete pile secondary that provides in this embodiment provides the platform of installation pipe through removing operation platform for the operation personnel, produces the device through the compressed air and carries compressed air in to the pipe to outside discharging the drilling through the concrete pouring pipe with the sediment of drilling bottom and the rubbish in the mud liquid, improved the clear hole efficiency of secondary greatly, and be favorable to guaranteeing the pile-forming quality of drilling bottom.
Referring to fig. 2, the mobile operation platform 1 includes: two main beams 11, a plurality of secondary beams 12 and a conduit fixing member 13; the two main beams 11 are arranged in parallel, and the secondary beams 12 are arranged between the two main beams 11 at intervals and used for providing a standing platform for constructors; each secondary beam 12 is divided into two groups along the length direction of the main beam 11, and an installation part is arranged between the two groups of secondary beams 12; the conduit fixing member 13 is arranged in the mounting part in a reversible manner, and the conduit fixing member 13 is provided with an openable and closable mounting hole for fixing the concrete pouring conduit.
Specifically, the main beam 11 is made of channel steel, for example, the main beam 11 may be made of 20 a-type channel steel; the secondary beams 12 are made of steel bars, the secondary beams 12 can be arranged in a staggered mode to form a grid structure, the primary beams are divided into two parts by the secondary beams 12, and the two parts of the secondary beams 12 are spaced at preset intervals to provide installation parts for the guide pipe fixing components 13. The conduit fixing member 13 is provided with an openable mounting hole for inserting a concrete pouring conduit. In this embodiment, the pipe fixing member 13 may be provided in the middle of the girder 11 to ensure stability of the entire platform. The conduit fixing member 13 can be turned 180 degrees along the plane of the secondary beam 12, i.e. the mounting hole is convenient to open and close, which is convenient for fixing the concrete pouring conduit.
Referring to fig. 2 and 3, the catheter fixing member 13 includes: a first connecting plate 131 and a second connecting plate 132; wherein the first connecting plate 131 and the second connecting plate 132 are oppositely arranged, and the first connecting plate 131 and the second connecting plate 132 are connected to the main beam 11 in a reversible manner; the first connecting plate 131 is provided with a first notch 1311, the second connecting plate 132 is provided with a second notch 1321, and the first notch 1311 and the second notch 1321 are butted to form a concrete pouring conduit mounting hole.
Specifically, the first and second connection plates 131 and 132 may be identical in structure. The first and second connection plates 131 and 132 may be rectangular, square, trapezoidal, or the like. The first recess 1311 and the second recess 1321 may be symmetrically disposed.
Preferably, the first recess 1311 is semi-circular arc shaped and the second recess 1321 is semi-circular arc shaped. When the first and second connection plates 131, 132 are turned along the main beam 11 to be flush with the plane of the secondary beam 12, the first and second recesses 1311, 1321 are butted, and the inserted concrete pipes can be fixed from both sides.
To facilitate the turning of the first and second connection plates 131 and 132, the first and second connection plates 131 and 132 may be provided with pull rings 6. The pull ring may be an iron chain. For example, the first connecting plate 131 and the second connecting plate 132 may be welded with connecting lugs, and an iron chain may be connected to the connecting lugs, i.e., the first connecting plate 131 or the second connecting plate 132 may be turned over by pulling the iron chain.
The first connecting plate 131 and the second connecting plate 132 are connected to the main beam 11 in a reversible manner through a sleeve assembly. The side of first connector plate 131 remote from first recess 1311 may be pivotally connected to main beam 11 by sleeve assembly 7, and likewise, the side of second connector plate 132 remote from second recess 1321 may be pivotally connected to main beam 11 by a sleeve assembly.
Referring to fig. 4, the sleeve assembly 7 includes: two sleeves 71 and two rotating shafts 72 correspondingly arranged; the rotating shaft 72 is disposed on the main beam 11, the sleeves 71 are disposed at two ends of the first connecting plate 131 or the second connecting plate 132 close to one side of the secondary beam 12, and the sleeves 71 are rotatably sleeved on the rotating shaft 72.
The rotating shaft 72 can be a steel bar and can be welded on the main beam 11; the sleeve 71 may be a steel pipe, which may be welded to the first connection plate 131 or the second connection plate 132.
The two rotating shafts 72 are respectively vertically arranged on the two main beams 11 at positions corresponding to the mounting portions. Accordingly, the two sleeves 71 are coaxially disposed with the corresponding two rotation shafts 72 to be turned along the rotation shafts 72.
Referring to fig. 5, the invention also provides a secondary hole cleaning method for the cast-in-place pile, which comprises the following steps:
and step S1, after the hole is cleaned once, placing a steel reinforcement cage in the drilled hole, and placing the operating platform on the protective cylinder in the drilled hole.
Particularly, through adopting the machine of digging soon to drill, treat that drilling depth reaches design depth and geological conditions and design drawing unanimous back, carry out clear hole once through continuing to transfer the drill bit. And after hole cleaning is finished, detecting the hole depth and the sediment condition at the hole bottom through a measuring rope, and placing a steel reinforcement cage when the hole depth meets the design requirement and the sediment thickness is less than or equal to 5 cm.
And step S2, placing the cast-in-place pile guide pipe 4 in the mounting hole on the operation platform, installing the vertical section of the cast-in-place pile guide pipe in sections, and keeping the length of the vertical section consistent with the drilling depth.
Specifically, after the steel reinforcement cage is installed, the operation platform is placed on the pile casing, the pull ring 6 is pulled open to rotate the first connecting plate 131 and the second connecting plate 132, the cast-in-place pile guide pipe 4 is placed in the installation hole, and the guide pipe is installed in sections to keep the length of the guide pipe consistent with the depth of the drilled hole. The cast-in-place pile guide pipe 4 comprises a cast-in-place pile guide pipe vertical section 41 and a cast-in-place pile guide pipe vertical section 42; the vertical section 42 of the cast-in-place pile guide pipe and the vertical section 41 of the cast-in-place pile guide pipe can be arranged at an included angle, so that the garbage 8 in the sediment and the mud liquid can be discharged into a sedimentation tank on one side of the drilled hole after being pumped out.
And step S3, after the vertical section of the cast-in-place pile guide pipe is placed, placing a compressed air conveying pipe inside the vertical section of the cast-in-place pile guide pipe, keeping a preset distance between the compressed air conveying pipe and the bottom of the drilled hole, and after the compressed air conveying pipe is installed, installing the horizontal section of the cast-in-place pile guide pipe.
In particular, the distance between the compressed air delivery pipe 3 and the bottom of the borehole is kept between 3 and 6m, preferably 5 m. And installing the horizontal section of the cast-in-place pile guide pipe to discharge slurry with garbage and sediments out of the hole in a directional manner, and tightly connecting the rubber inner rib steel pipe of the air compressor with the compressed air conveying pipe after the installation is finished.
And step S4, turning on the compressed air generating device for a preset time, then turning off the compressed air generating device, measuring the sediment and garbage conditions at the bottom of the drilled hole, if the hole cleaning effect is not obvious, continuing turning on the compressed air generating device until the pile bottom is clean and has no garbage, and then detaching the horizontal section 42 of the cast-in-place pile guide pipe and the compressed air conveying pipe 3.
Specifically, after the device is installed, the hole depth and the sediment condition at the bottom of the hole are measured. And after a switch of the generator and the air compressor is turned on, the air compressor normally operates, the mud brings the garbage and the sediments out of the hole due to the action of pressure difference, the air compressor is turned off after being turned on for 3-5 min, the sediment and garbage conditions at the bottom of the hole are measured, if the effect is not obvious, the air compressor is turned on continuously for 2-3 min until the pile bottom is clean and has no garbage, the horizontal section of the cast-in-place pile conduit is detached, and the compressed air conveying pipe is detached.
This embodiment still includes: and controlling the distance between the vertical section of the cast-in-place pile guide pipe and the bottom of the drilled hole to be 30 cm-50 cm, and installing a blanking groove at the top of the vertical section of the cast-in-place pile guide pipe so as to pour concrete into the pile hole.
It should be noted that, the relevant points in the method embodiments and the device embodiments may be referred to each other, and are not described herein again.
In conclusion, the secondary hole cleaning method provided by the invention is simple to operate, high in hole cleaning efficiency and thorough in hole cleaning, and is beneficial to ensuring the pile forming quality of the hole bottom.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a clear hole device of bored concrete pile secondary which characterized in that includes: the device comprises a mobile operating platform, a compressed air generating device and a compressed air conveying pipe; wherein the content of the first and second substances,
the movable operation platform is provided with a mounting hole for placing the concrete pouring guide pipe into the drill hole;
one end of the compressed air conveying pipe is inserted into the concrete pouring guide pipe, and the output end of the compressed air generating device is communicated with the other end of the compressed air conveying pipe and used for conveying compressed air into the guide pipe, so that sediments at the bottom of the drill hole and garbage in mud liquid are discharged out of the drill hole through the concrete pouring guide pipe.
2. The cast-in-place pile secondary hole cleaning device according to claim 1, wherein the compressed air generating device comprises: an electric generator and an air compressor; wherein the content of the first and second substances,
the generator is electrically connected with the air compressor and used for providing electric energy for the air compressor.
3. The cast-in-place pile secondary hole cleaning device according to claim 1, wherein the mobile operation platform comprises: two main beams, a plurality of secondary beams and a conduit fixing component; wherein the content of the first and second substances,
the two main beams are arranged in parallel, and the secondary beams are arranged between the two main beams at intervals and used for providing a standing platform for constructors;
each secondary beam is divided into two groups along the length direction of the main beam, and an installation part is arranged between the two groups of secondary beams;
the guide pipe fixing component is arranged in the mounting part in a reversible manner, and an openable mounting hole is formed in the guide pipe fixing component and used for fixing the concrete pouring guide pipe.
4. A cast-in-place pile secondary hole cleaning device according to claim 3, wherein the conduit fixing member comprises: a first connecting plate and a second connecting plate; wherein the content of the first and second substances,
the first connecting plate and the second connecting plate are arranged oppositely, and the first connecting plate and the second connecting plate are connected to the main beam in a turnover mode;
the first connecting plate is provided with a first notch, the second connecting plate is provided with a second notch, and the first notch and the second opening are in butt joint to form a concrete pouring conduit mounting hole.
5. A cast-in-place pile secondary hole cleaning device as claimed in claim 4, wherein pull rings are arranged on the first connecting plate and the second connecting plate so as to turn the first connecting plate and the second connecting plate.
6. The cast-in-place pile secondary hole cleaning device according to claim 4, wherein the first connecting plate and the second connecting plate are connected to the main beam in a reversible mode through a sleeve assembly.
7. A cast-in-place pile secondary hole cleaning device as claimed in claim 6, wherein the sleeve assembly comprises: the two sleeves and the two rotating shafts are correspondingly arranged; wherein the content of the first and second substances,
the rotating shaft is arranged on the main beam, the sleeves are arranged at two ends, close to one side of the secondary beam, of the first connecting plate or the second connecting plate, and the sleeves are rotatably sleeved on the rotating shaft.
8. A secondary hole cleaning method for a cast-in-place pile is characterized by comprising the following steps:
step 1, after hole cleaning is carried out for one time, placing a reinforcement cage in a drilled hole, and placing an operation platform on a protective cylinder at the upper part of the drilled hole;
step 2, placing the cast-in-place pile guide pipe in an installation hole on the operation platform, installing the vertical section of the cast-in-place pile guide pipe in sections, and keeping the length of the vertical section consistent with the depth of a drilled hole;
step 3, after the vertical section of the cast-in-place pile guide pipe is placed, installing a compressed air conveying pipe in advance, connecting a connecting port reserved at the top of the guide pipe with a compressed air pipe by using a crane, then placing the compressed air conveying pipe in the vertical section of the cast-in-place pile guide pipe, keeping a preset distance between the compressed air conveying pipe and the bottom of the drilled hole, and after the compressed air conveying pipe is installed, installing a horizontal section of the cast-in-place pile guide pipe;
and 4, turning on the compressed air generating device for a preset time, then turning off the compressed air generating device, measuring the sediment and garbage conditions at the bottom of the drilled hole, if the hole cleaning effect is not obvious, continuing turning on the compressed air generating device until the pile bottom is clean and free of garbage, and then detaching the horizontal section of the cast-in-place pile guide pipe and the compressed air conveying pipe.
9. A secondary hole cleaning method for a cast-in-place pile according to claim 7, characterized in that in the step 3, the distance between the compressed air delivery pipe and the bottom of the drilled hole is kept between 3 and 6 m.
10. The method for secondary hole cleaning of the cast-in-place pile according to claim 7, further comprising, after the step 4: and controlling the distance between the vertical section of the cast-in-place pile guide pipe and the bottom of the drilled hole to be 30 cm-50 cm, and installing a blanking groove at the top of the vertical section of the cast-in-place pile guide pipe so as to pour concrete into the pile hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010752262.9A CN112030972A (en) | 2020-07-30 | 2020-07-30 | Secondary hole cleaning device and method for cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010752262.9A CN112030972A (en) | 2020-07-30 | 2020-07-30 | Secondary hole cleaning device and method for cast-in-place pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112030972A true CN112030972A (en) | 2020-12-04 |
Family
ID=73583701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010752262.9A Pending CN112030972A (en) | 2020-07-30 | 2020-07-30 | Secondary hole cleaning device and method for cast-in-place pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112030972A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695426A (en) * | 2015-03-29 | 2015-06-10 | 安徽建工集团有限公司 | Gas lift method based secondary hole cleaning construction process for overlength pile foundations |
| CN206941595U (en) * | 2017-07-14 | 2018-01-30 | 中国建筑第五工程局有限公司 | Rotary digging stake irrigates concrete catheter connection device |
-
2020
- 2020-07-30 CN CN202010752262.9A patent/CN112030972A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695426A (en) * | 2015-03-29 | 2015-06-10 | 安徽建工集团有限公司 | Gas lift method based secondary hole cleaning construction process for overlength pile foundations |
| CN206941595U (en) * | 2017-07-14 | 2018-01-30 | 中国建筑第五工程局有限公司 | Rotary digging stake irrigates concrete catheter connection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105780763A (en) | Construction method of medium-hole vibrating casing wall protection type long spiral cast-in-situ bored pile | |
| KR100880439B1 (en) | Apparatus and method for removing slime in a cast-in place pile construstion | |
| CN104746519A (en) | Obstacle clearing construction method | |
| CN110565686A (en) | Construction method for penetrating river channel under pipe gallery | |
| CN110820723B (en) | Construction control method for underground diaphragm wall of deep and large foundation pit support structure of station | |
| CN112030972A (en) | Secondary hole cleaning device and method for cast-in-place pile | |
| CN112343045A (en) | Static pressure pipe pile sinking device with recyclable pile tip and construction method | |
| KR101139708B1 (en) | Ground excavating guied casing for concrete file construction and ground excavating method using the same | |
| CN214033711U (en) | Rotary drilling bit for removing waste pile | |
| CN213654797U (en) | Compact mud circulating system for reverse circulation drilling machine | |
| CN212294664U (en) | Cast-in-situ bored pile dredging device | |
| CN207553998U (en) | Air pressure hole cleaning device | |
| CN113026723A (en) | Special-shaped ribbed plate combined water stop structure of underground continuous wall and construction method | |
| CN219909022U (en) | Local automatic precipitation device of foundation ditch | |
| CN219033216U (en) | Bored pile dredging device | |
| CN220195803U (en) | PHC tubular pile is interior clear mud device fast | |
| CN219431796U (en) | Well flushing device suitable for deep foundation pit excavation tubular well dewatering | |
| CN104018503A (en) | Large-diameter tube rocking and hole drilling tube-subsiding and tube-drawing static pressure pile machine and construction process | |
| CN113373915B (en) | Method for reinforcing steel column pile structure | |
| CN218091006U (en) | Pile foundation quality processing equipment | |
| CN211735392U (en) | Bottom-pocket type vibration hammer section steel pile extractor | |
| CN117266134B (en) | Method and cleaner for treating continuous wall joint pipe accident | |
| CN212104097U (en) | Concrete pipe pile core clearance instrument | |
| CN211287519U (en) | Anti-inclined drill bit for rotary drilling rig | |
| CN110439048B (en) | Hydraulic punching cutter suction equipment and method for inner support foundation pit engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201204 |