CN113802547A - Construction method of bored pile based on inclined pile in wind power weathered soil layer - Google Patents
Construction method of bored pile based on inclined pile in wind power weathered soil layer Download PDFInfo
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- CN113802547A CN113802547A CN202111273523.XA CN202111273523A CN113802547A CN 113802547 A CN113802547 A CN 113802547A CN 202111273523 A CN202111273523 A CN 202111273523A CN 113802547 A CN113802547 A CN 113802547A
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000002689 soil Substances 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000005553 drilling Methods 0.000 claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000008093 supporting effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 238000007569 slipcasting Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Paleontology (AREA)
- Civil Engineering (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a construction method of an inclined pile bored pile based on a wind power weathered soil layer, and belongs to the technical field of inclined bored pile engineering. Be provided with sleeve and clamping device, the sleeve includes inner tube and urceolus, and urceolus and inner tube clearance are provided with annular positioning steel sheet, and annular positioning steel sheet is provided with a plurality of through-holes and slip casting mouth alternately to peg graft the reinforcing bar in the through-hole, the slip casting mouth can insert the pipe, is provided with the drilling rod of coaxial line in order to carry out the pouring of concrete, the drilling rod stretches into inner tube one end circumferencial direction and is provided with a plurality of guide blocks, the inner tube be provided with guide block complex spout, realized when carrying out the batter pile bored concrete pile operation of great degree of depth, avoid outside shaping long sleeve, and turn into the telescopic in succession of multisection and impress for the construction degree of difficulty of engineering reduces.
Description
Technical Field
The invention relates to the technical field of inclined pile support bored pile engineering, in particular to a construction method of an inclined pile bored pile based on a wind power weathering soil layer.
Background
The cast-in-situ bored pile construction technology is a concrete technology with low construction cost, simple construction operation, no vibration, no noise and no soil squeezing effect. Cast-in-situ bored pile construction technology has been widely used in the field of construction engineering. A large number of practice cases show that the cast-in-situ bored pile has higher safety and higher stability, namely concrete slurry permeates to the deep part of a soil layer, so that the soil layer and a cast-in-situ pile body can be tightly combined, the foundation is firmer and more reliable, and meanwhile, the cast-in-situ bored pile can effectively control the settlement of the foundation, so that the compaction effect is generated on the soil layer; the cast-in-situ bored pile plays good functions of penetration, compaction and splitting on a soil layer, and the soil layer is more stable due to interaction among the cast-in-situ bored pile, the compaction and the splitting. The construction environment of the cast-in-situ bored pile is extremely severe, so the application process is influenced by various factors. Therefore, the reinforcement has practical significance for application research of the cast-in-situ bored pile construction technology.
The weathered soil is formed by the long-term action of rocks with air, water, carbon dioxide and other substances, the rocks on the ground surface or close to the ground surface are disintegrated and broken to form a plurality of rock fragments or sand grains with different sizes, relatively speaking, the inclined pile is better in stress characteristic than a conventional vertical pile, the inclined pile can provide horizontal acting force and has better supporting effect, the supporting effect is better than that of the conventional vertical cantilever pile and vertical double-row pile, when a cast-in-place pile has a certain depth, a longer protective cylinder needs to be manufactured, great difficulty is brought to construction, or a plurality of protective cylinders need to be matched, deviation can be generated among the protective cylinders at the moment, a larger gap is caused, and a steel reinforcement cage needs to be integrally formed outside and then to be placed into a drill hole, the difficulty is great, and the quality of a final pile is poor.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to solve the technical problem of reducing the difficulty caused by that a sleeve is too long and is not easy to sink into a drill hole according to specific requirements in the construction process of the bored pile based on the inclined pile in the wind power weathered soil layer and ensuring the uniformity in pouring.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a bored pile based on an inclined pile in a wind power weathering soil layer, which comprises a sleeve and a clamping device, wherein the sleeve is fixed by the clamping device so as to send a sleeve structure into a drilled borehole; the annular positioning steel plates are alternately provided with a plurality of through holes and grouting ports so as to insert the steel bars into the through holes, and the grouting ports can be inserted into a guide pipe so as to pour concrete; the drilling machine is characterized in that a coaxial drill rod is arranged in the inner barrel, a plurality of guide blocks are arranged in the circumferential direction of one end, extending into the inner barrel, of the drill rod, a sliding groove matched with the guide blocks is formed in the inner barrel, and a drilling machine is arranged at one end of the drill rod in the drilling direction.
The invention preferably adopts the technical scheme that the clamping device comprises a supporting seat and a driving mechanism, wherein the supporting seat is rotationally connected with the driving mechanism, and the inclination and the direction of the drilled hole are adjusted by rotating the driving mechanism.
The driving mechanism is provided with a first driving layer and a second driving layer, the first driving layer is provided with a first arc-shaped clamping portion, the second driving layer is provided with a second arc-shaped clamping portion, the second arc-shaped clamping portion and the first arc-shaped clamping portion are coaxially arranged, the first arc-shaped clamping portion can provide downward pressure for the outer cylinder, and the second arc-shaped clamping portion can provide downward pressure for the drill rod.
The invention has the preferable technical scheme that a plurality of layers of annular positioning steel plates are arranged so as to better position the positions of the steel bar insertion and the outer cylinder.
The drilling machine comprises a rotating device and a plurality of drill blocks, one end of each drill block is rotatably connected with the rotating device, the other end of each drill block can be opened and closed, the maximum opening and closing diameter of each drill block is the same as that of the outer cylinder, and the minimum opening and closing diameter of each drill block is smaller than that of the inner cylinder.
The invention has the preferable technical scheme that one end of the drill block, which is dug, is provided with drill teeth.
The invention preferably adopts the technical scheme that the drilling machine further comprises a motor for providing rotary power for the drilling machine.
A construction method based on an inclined pile bored pile in a wind power weathered soil layer comprises the following steps: step S00: arranging the field, fixing a clamping device, and digging a drilling position before drilling at a measuring position in advance; step S10: matching a guide block of the drill rod with a sliding groove of the inner cylinder, and then inserting the guide block into the outer cylinder to be matched with the outer cylinder; step S20: the annular positioning steel plate is provided with a through hole capable of being inserted with a steel bar and a grouting opening capable of being inserted with a guide pipe, then the annular positioning steel plate slides to a gap between the outer cylinder and the inner cylinder, and a positioning pin is inserted into a positioning hole in the inner cylinder, so that the positions of the outer cylinder and the inner cylinder are positioned, the annular positioning steel plate and the positioning pin are inserted layer by layer, and the sleeve is combined; step S30: determining the angle of a pile, pressing a drill rod downwards by a second driving layer, wherein an excavating drilling machine is arranged at the excavating end of the drill rod, the excavating end of a drill block of the excavating drilling machine can move along the radial direction of the drill rod, and the drill block can be opened and closed to the maximum radius of the outer cylinder during drilling; step S40: pressing the sleeve into the drilled hole by using a pressing mechanism; step S50: sequentially inserting the steel bars into the through holes of the annular positioning steel plates; step S60: repeating the steps S20-S50 to realize the combination of the multi-section sleeve, and repeating the steps; step S70: after the sleeve is placed, inserting the guide pipe into the grouting opening until the sleeve at the bottommost layer is filled with concrete water from the bottommost layer, so that the concrete water is poured layer by layer, and the positioning pins are taken out layer by layer; step S80: after the pouring is finished, forming a pile, and then taking out the sleeve layer by layer.
The invention preferably adopts the technical scheme that in the step S50, when the two sleeves are connected, the drill rod guide block is matched with the sliding grooves of the two sleeves, so that the axes of the two sleeves are on the same straight line.
The invention has the beneficial effects that:
(1) the construction method of the bored pile based on the inclined pile in the wind power weathered soil layer fully considers that when a cast-in-place pile with larger depth is needed, construction is not needed after independent forming outside, the sleeve is divided into a plurality of sections which are combined outside, and then each section is separated to form a pile in a segmented mode, so that the construction difficulty is reduced;
(2) when the multi-section sleeves are pressed into the drilled holes, the annular positioning steel plate accurately limits the interval between the inner cylinder and the outer cylinder, the through holes on the annular positioning steel plate can enable the reinforcing steel bars to be uniformly distributed in the circumferential direction of the cast-in-place pile, and the guide pipes can be inserted into the sleeve at the bottommost layer through the grouting holes on the annular positioning steel plate to start to inject concrete water into the sleeve at the bottommost layer, so that the cast-in-place pile is uniformly cast in layers;
(3) the guide block on the drill rod is matched with the sliding groove on the inner barrel to connect the front sleeve and the rear sleeve, so that the multi-section sleeves can be accurately pressed in along the axial direction of the sleeves when being formed into a pile, and the gap between the sleeves can be reduced to a greater extent.
Drawings
Fig. 1 is a schematic overall view of a cast-in-place pile for a deviated pile according to an embodiment of the present invention;
FIG. 2 is a schematic view of a slant-bored pile sleeve and drill rod combination provided in an embodiment of the present invention;
fig. 3 is a schematic structural view of an end of a sleeve and a drill rod assembly of a slant-bored pile according to an embodiment of the present invention;
FIG. 4 is a top view of a sleeve provided in an embodiment of the present invention;
FIG. 5 is a schematic diagram of the mating of two sleeves during a hold down process provided in an embodiment of the present invention.
In the figure:
1. a sleeve; 2. a clamping device; 11. an outer cylinder; 12. an inner barrel; 13. annularly positioning the steel plate; 121. positioning holes; 1211. positioning pins; 131. a through hole; 132. a grouting port; 14. a drill stem; 141. a guide block; 122. a chute; 15. digging a drilling machine; 21. a support base; 22. a drive mechanism; 221. a first drive layer; 222. a second drive layer; 2211. a first arc-shaped clamping part; 2221. a second arc-shaped clamping part; 153. a rotating device; 152. drilling teeth; 151. drilling a block; 3. an electric motor.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1-4, the bored pile based on the batter pile in the wind power weathering soil layer comprises a sleeve 1 and a clamping device 2, wherein the sleeve 1 is fixed by the clamping device 2 so as to send the structure of the sleeve 1 into a drilled borehole, the sleeve 1 comprises an outer cylinder 11 and an inner cylinder 12, a slidable annular positioning steel plate 13 is arranged between the outer cylinder 11 and the inner cylinder 12, the inner cylinder 12 is uniformly provided with a plurality of positioning holes 121 in the axial direction, and positioning pins 1211 are inserted into the positioning holes 121 so as to fix the positions of the annular positioning steel plate 13; the annular positioning steel plate 13 is alternately provided with a plurality of through holes 131 and grouting ports 132 so as to insert the steel bars into the through holes 131, and the grouting ports 132 can be inserted into a guide pipe so as to pour concrete; the inner cylinder 12 is internally provided with a coaxial drill rod 14, a plurality of guide blocks 141 are arranged in the circumferential direction of one end of the drill rod 14 extending into the inner cylinder 12, the inner cylinder 12 is provided with a sliding groove 122 matched with the guide blocks 141, and an excavating and drilling machine 15 is arranged at one end of the drill rod 14 in the drilling direction. Because the long barrel of the cast-in-place pile is inconvenient during construction, the relatively short sleeve 1 is assembled in advance, the relative position of the outer barrel 11 and the inner barrel 12 is limited through the annular positioning steel plate 13, the direction of the drill hole is determined through the drill rod 14, the drill rod 14 and the sleeve 1 are pressed down by the clamping device 2, the assembled sleeve 1 is sunk into the drill hole in sections, the limiting and guiding effects are provided for the whole sleeve 1 through the guide block 141 on the drill rod 14, the steel bars are inserted into the through hole 131 section by section, the guide pipe can be inserted into the sleeve 1 at the bottommost layer through the grouting port 132, continuous layer-by-layer pouring is carried out, the pouring is more uniform, and gaps are reduced.
Preferably, the clamping device 2 comprises a supporting seat 21 and a driving mechanism 22, the supporting seat 21 and the driving mechanism 22 are rotatably connected, and the driving mechanism 22 is rotated to adjust the inclination and the direction of the drilling hole. The driving mechanism 22 is provided with a first driving layer 221 and a second driving layer 222, the first driving layer 221 is provided with a first arc-shaped clamping portion 2211, the second driving layer 222 is provided with a second arc-shaped clamping portion 2221, the second arc-shaped clamping portion 2221 and the first arc-shaped clamping portion 2211 are coaxially arranged, the first arc-shaped clamping portion 2211 can provide downward pressure for the outer barrel 11, and the second arc-shaped clamping portion 2221 can provide downward pressure for the drill rod 14. The first driving layer 221 and the second driving layer 222 enable the first arc-shaped clamping portion 2211 and the second arc-shaped clamping portion 2221 to provide pressing-down force for the sleeve 1 and the drill rod 14 through built-in hydraulic cylinders. In operation, the drill rod 14 is clamped in the second arc-shaped clamping portion 2221 in advance, and then the sleeve 1 is clamped in the first arc-shaped clamping portion 2211, and the guide block 141 and the sliding groove 122 are matched in clamping and pressed into the drill hole together.
Preferably, the annular positioning steel plate 13 is provided with a plurality of layers so as to better position the position where the steel bar is inserted into and the outer cylinder 11. Through inserting the reinforcing bar in the through-hole, consolidated the inside structure of back of pouring, make each layer slip casting mouth 132 correspond simultaneously, make things convenient for follow-up pipe of inserting to carry out the slip casting.
Preferably, the digging and drilling machine 15 comprises a rotating device 153 and a plurality of drill blocks 151, one end of each drill block 151 is rotatably connected with the rotating device 2, the other end of each drill block 151 can be opened and closed, the maximum opening and closing diameter of each drill block 151 is the same as that of the outer cylinder 11, and the minimum opening and closing diameter of each drill block 151 is smaller than that of the inner cylinder 12. The digging end of the drill block 151 is provided with drill teeth 152. The sleeve can be smoothly sunk into the drilled hole by opening and closing the digging end of the drill block 151. The drilling machine further comprises a motor 3 for providing rotary power for the drilling machine 15, a rotating device 153 of the drilling machine 15 is connected with an external motor, and the motor 3 provides power for drilling.
A construction method based on an inclined pile bored pile in a wind power weathered soil layer comprises the following steps: step S00: arranging the field, fixing the clamping device 2, and digging a drilling position before drilling at a measuring position in advance; step S10: the guide block 141 of the drill rod 14 is engaged with the slide groove 122 of the inner cylinder 12 and then inserted into the outer cylinder 11 to be engaged with the outer cylinder 11; step S20: the annular positioning steel plate 13 is provided with a through hole 131 capable of inserting a steel bar and a grouting opening 132 capable of inserting a conduit, then the annular positioning steel plate 13 slides into a gap between the outer cylinder 11 and the inner cylinder 12, a positioning pin 1211 is inserted into a positioning hole 121 in the inner cylinder 12, so that the positions of positioning the outer cylinder 11 and the inner cylinder 12 are achieved, the annular positioning steel plate 13 and the positioning pin 1211 are inserted layer by layer, and the sleeve 1 is assembled; step S30: determining the angle of a pile, pressing the drill rod 14 downwards by the second driving layer 222, arranging an excavating and drilling machine 15 at the excavating end of the drill rod 14, enabling the excavating end of a drill block 151 of the excavating and drilling machine 15 to move along the radial direction of the drill rod 14, and opening and closing to the maximum radius of the outer cylinder 11 at the maximum during drilling; step S40: pressing the sleeve 1 into the drilled hole by using a pressing mechanism; step S50: sequentially inserting the steel bars into the through holes 131 of the annular positioning steel plate 13; step S60: repeating the steps S20-S50 to realize the combination of the multi-section sleeve 1, and repeating the steps; step S70: after the sleeve 1 is placed, the guide pipe is inserted into the grouting port 132 until the sleeve 1 at the bottommost layer, and concrete water is poured from the bottommost layer, so that the sleeve 1 is poured layer by layer, and the positioning pins 1211 are taken out layer by layer; step S80: after the pouring is finished, a pile is formed, and then the sleeve 1 is taken out layer by layer.
As shown in fig. 5, preferably, in step S50, when the two sleeves 1 are connected, the guide block 141 is engaged with the slide groove 122 of the two sleeves 1 through the drill rod 14, so that the axes of the two sleeves 1 are on the same straight line. Under the action of the guide blocks 141, the sleeves 1 are advanced one by one into the borehole.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (9)
1. Based on batter pile drilling bored concrete pile in wind-powered electricity generation morals and manners soil layer, including sleeve (1) and clamping device (2), sleeve (1) is fixed by clamping device (2) to send sleeve (1) structure into in boring good, its characterized in that:
the sleeve (1) comprises an outer cylinder (11) and an inner cylinder (12), a slidable annular positioning steel plate (13) is arranged between the outer cylinder (11) and the inner cylinder (12), a plurality of positioning holes (121) are uniformly formed in the inner cylinder (12) in the axis direction, and positioning pins (1211) are inserted into the positioning holes (121) to fix the position of the annular positioning steel plate (13);
the annular positioning steel plates (13) are alternately provided with a plurality of through holes (131) and grouting ports (132) so as to insert the steel bars into the through holes (131), and the grouting ports (132) can be inserted into a guide pipe so as to pour concrete;
a coaxial drill rod (14) is arranged in the inner barrel (12), a plurality of guide blocks (141) are arranged in the circumferential direction of one end, extending into the inner barrel (12), of the drill rod (14), a sliding groove (122) matched with each guide block (141) is formed in the inner barrel (12), and a drilling machine (15) is arranged at one end of the drill rod (14) in the drilling direction.
2. The batter pile bored pile according to claim 1, wherein:
the clamping device (2) comprises a supporting seat (21) and a driving mechanism (22), wherein the supporting seat (21) is rotatably connected with the driving mechanism (22), and the inclination and the direction of the drilled hole can be adjusted by rotating the driving mechanism (22).
3. The batter pile bored pile according to claim 2, wherein:
the driving mechanism (22) is provided with a first driving layer (221) and a second driving layer (222), the first driving layer (221) is provided with a first arc-shaped clamping part (2211), the second driving layer (222) is provided with a second arc-shaped clamping part (2221), the second arc-shaped clamping part (2221) and the first arc-shaped clamping part (2211) are arranged coaxially,
the first arc-shaped clamping part (2211) can provide downward pressure for the outer cylinder (11), and the second arc-shaped clamping part (2221) can provide downward pressure for the drill rod (14).
4. The batter pile bored pile according to claim 1, wherein;
the annular positioning steel plates (13) are arranged in a plurality of layers so as to better position the positions of the steel bars inserted into the outer cylinder (11).
5. The batter pile bored pile according to claim 1, wherein:
the digging and drilling machine (15) comprises a rotating device (153) and a plurality of drill blocks (151), one end of each drill block (151) is rotatably connected with the rotating device (2), the other end of each drill block (151) can be opened and closed, the maximum opening and closing diameter of each drill block (151) is the same as that of the outer cylinder (11), and the minimum opening and closing diameter of each drill block (151) is smaller than that of the inner cylinder (12).
6. The batter pile bored pile according to claim 5, wherein;
drilling teeth (152) are arranged at the digging end of the drilling block (151).
7. The batter pile bored pile according to claim 1, wherein:
the drilling machine also comprises a motor (3) for providing rotary power for the drilling machine (15).
8. A construction method based on an inclined pile bored pile in a wind power weathered soil layer is characterized by comprising the following steps:
the method comprises the following steps: step S00: arranging the field, fixing a clamping device (2), and digging a drilling position before drilling at a measuring position in advance;
step S10: a guide block (141) of the drill rod (14) is matched with a sliding groove (122) of the inner cylinder (12), and then the guide block is inserted into the outer cylinder (11) to be matched with the outer cylinder (11);
step S20: arranging a through hole (131) capable of inserting a steel bar and a grouting opening (132) capable of inserting a guide pipe on an annular positioning steel plate (13), then sliding the annular positioning steel plate (13) to a gap between an outer cylinder (11) and an inner cylinder (12), inserting a positioning pin (1211) into a positioning hole (121) in the inner cylinder (12), so that the positions for positioning the outer cylinder (11) and the inner cylinder (12) are reached, inserting the annular positioning steel plate (13) and the positioning pin (1211) layer by layer, and thus completing the combination of the sleeve (1);
step S30: determining the angle of a pile, pressing a drill rod (14) downwards by a second driving layer (222), arranging an excavating and drilling machine (15) at the excavating end of the drill rod (14), enabling the excavating end of a drill block (151) of the excavating and drilling machine (15) to move along the radial direction of the drill rod (14), and opening and closing the excavating end to the maximum radius of the outer cylinder (11) at the maximum during drilling;
step S40: pressing the sleeve (1) into the drilled hole by using a pressing mechanism;
step S50: sequentially inserting the steel bars into the through holes (131) of the annular positioning steel plates (13);
step S60: repeating the steps S20-S50 to realize the combination of the multi-section sleeve (1), and repeating the steps;
step S70: after the sleeve (1) is placed, inserting a guide pipe into the grouting opening (132) until the sleeve (1) at the bottommost layer is filled with concrete water from the bottommost layer, so that the concrete water is poured layer by layer, and taking out the positioning pins (1211) layer by layer;
step S80: after the pouring is finished, a pile is formed, and then the sleeve (1) is taken out layer by layer.
9. The construction method based on the inclined pile bored pile in the wind power weathered soil layer according to claim 8, characterized in that:
in step S50, when the two sleeves (1) are connected, the guide block (141) is matched with the sliding groove (122) of the two sleeves (1) through the drill rod (14) so that the axes of the two sleeves (1) are on the same straight line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111273523.XA CN113802547B (en) | 2021-10-29 | 2021-10-29 | Construction method of bored pile based on inclined pile in wind power weathered soil layer |
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| CN202111273523.XA CN113802547B (en) | 2021-10-29 | 2021-10-29 | Construction method of bored pile based on inclined pile in wind power weathered soil layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432328A (en) * | 2023-12-13 | 2024-01-23 | 江苏扬州富达液压机械集团有限公司 | Drilling equipment for deep soil construction of dam |
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|---|---|---|---|---|
| JPS61221413A (en) * | 1985-03-25 | 1986-10-01 | Kajima Corp | Skew pile driving work |
| CN109208587A (en) * | 2017-06-30 | 2019-01-15 | 毕建东 | The construction method and device of caisson and application |
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2021
- 2021-10-29 CN CN202111273523.XA patent/CN113802547B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61221413A (en) * | 1985-03-25 | 1986-10-01 | Kajima Corp | Skew pile driving work |
| CN109208587A (en) * | 2017-06-30 | 2019-01-15 | 毕建东 | The construction method and device of caisson and application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432328A (en) * | 2023-12-13 | 2024-01-23 | 江苏扬州富达液压机械集团有限公司 | Drilling equipment for deep soil construction of dam |
| CN117432328B (en) * | 2023-12-13 | 2024-04-02 | 江苏扬州富达液压机械集团有限公司 | Drilling equipment for deep soil construction of dam |
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