CN110847173B - Construction method for cutting off excess wet concrete of unset concrete pile - Google Patents
Construction method for cutting off excess wet concrete of unset concrete pile Download PDFInfo
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- CN110847173B CN110847173B CN201911053861.5A CN201911053861A CN110847173B CN 110847173 B CN110847173 B CN 110847173B CN 201911053861 A CN201911053861 A CN 201911053861A CN 110847173 B CN110847173 B CN 110847173B
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 239000002699 waste material Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 238000005507 spraying Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims 1
- 238000001764 infiltration Methods 0.000 claims 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/005—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof removing the top of placed piles of sheet piles
Abstract
The invention relates to a construction method for cutting off redundant wet concrete of an unset concrete pile, which is characterized by comprising the following steps: s1: pouring concrete, namely pouring the concrete into the concrete mould to the elevation; s2: adjusting the circular through hole, namely rotating the ring piece corresponding to the bottom surface of the multi-ring multi-hole ring body according to the position of the steel bar to adjust the circular through hole corresponding to the steel bar; s3: a placement device; s4: protecting the steel bars; s5: filling a pile head; s6: leveling the device, namely starting a micro-vibrator on a corresponding rectangular steel sheet according to specific construction conditions to level the device; s7: unfolding a fan-shaped blade; s8: waste recovery and cleaning device; the invention utilizes the combination of the fan-shaped blade and the multi-ring multi-hole annular body to integrally cut off wet concrete, the circular through hole on the annular sheet is matched with the elliptical hole on the multi-ring multi-hole annular body for use, and the invention can be suitable for concrete piles with various quantities, positions, diameters and distributions of reinforcing steel bars, and has strong flexibility and wide application range.
Description
Technical Field
The invention belongs to the technical field of building and bridge construction, and particularly relates to a construction method for cutting excess wet concrete of an uncured concrete pile.
Background
In the pouring process of the concrete cast-in-place pile, as the cement paste returns upwards and rises together with air bubbles in the concrete by vibration, laitance is formed in a certain range of the pile top, and the strength of the concrete at the pile head part is difficult to ensure; in addition, when underwater concrete is poured, slurry and mortar mixtures at the pile head part are most accumulated, so that the concrete at the pile head part is relatively loose, and the strength of the concrete cannot meet the requirement. Therefore, the actual elevation requirement of the pile head of the concrete cast-in-place pile is higher than the design elevation by 500-1000mm during construction, and the higher part is broken manually or mechanically, and is generally called as a "pile chiseling head" or a "pile breaking head".
At present, the pile head is dug manually, useless concrete above the pile mark is broken by an air pick or other cutting equipment, and then main reinforcements in a reinforcement cage are stripped. Mechanical pile cutting head uses a plurality of modules to make up together and adapts to not equidimension stake, with a plurality of modules parallelly connected carry out the simultaneous extrusion through hydraulic line to the same cross-section of stake around the stake to the realization is to the fracture of this cross-section concrete, this kind of method can be because the position of reinforcing bar owner muscle and the device that the quantity is different and need the difference, the flexibility is poor, produces a large amount of concrete pieces simultaneously, difficult clearance.
Disclosure of Invention
The invention aims to provide a construction method for cutting excessive wet concrete of an unset concrete pile, which aims to solve the problems that the existing pile cutting head has high construction strength, low efficiency, large damage to reinforcing steel bars, easy pollution to the environment and difficulty in adapting to cutting of concrete pile heads with different radiuses within a certain range.
In order to achieve the purpose, the invention provides the following technical scheme: a construction method for cutting off redundant wet concrete of an unset concrete pile is characterized by comprising the following steps:
s1: pouring concrete, namely pouring the concrete into the concrete mould to the elevation;
s2: adjusting the circular through holes 12, according to the position and distribution of the steel bars, rotating one of the three ring pieces 9 corresponding to the bottom surface of the multi-ring multi-hole ring body 3 to enable the circular through holes 12 on the ring pieces 9 to correspond to the positions of the steel bars, enabling the circular through holes 12 corresponding to the steel bars to coincide with the elliptical holes 2 for the steel bars to pass through, rotating the other ring pieces 9, enabling the non-circular through hole parts of the ring pieces 9 to coincide with the elliptical holes 2, sealing the parts, without the steel bars, on the elliptical holes 2, preventing later concrete from permeating, and controlling the diameter of the circular through holes 12 to be 20-26mm to ensure that the circular through holes 12 can be sleeved with the steel bars, so that the diameter of the steel;
s3: the placing device is used for enabling the steel bars to penetrate through the previously adjusted circular through holes 12 and then placing the device at the high position of the concrete pile head;
s4: protecting the steel bars, namely sleeving PVC sleeves on the steel bars above the elevation after the device is placed at the elevation, and sealing the upper and lower openings of the sleeves by soft elastic materials;
s5: filling the pile head, and continuously pouring concrete above the device until the concrete reaches the elevation of 50-1000 mm;
s6: leveling the device, namely starting a corresponding micro-vibrator 13 on the rectangular steel sheet 5 according to specific construction conditions to level the device;
s7: the fan-shaped blades 11 are unfolded, a motor 15 arranged at the upper end of the transmission shaft 4 is started to drive the transmission shaft 4 to rotate, the transmission shaft 4 drives the fan-shaped blades 11 at the bottom layer to be unfolded, and the other fan-shaped blades 11 are sequentially unfolded through the linkage baffle 10 at the side edge of the fan-shaped blades 11;
s8: the waste is recovered and cleaned, the crane takes away the device and the redundant concrete materials above the device through the hanging ring 7 and recovers the waste, and then the water spraying holes 6 spray water to clean the fan-shaped blade 11 and the integral device;
preferably, the cleaning device in step S8 is performed by:
the method comprises the following steps: cleaning the fan-shaped blade 11, adjusting the reverse direction of the motor 15 to enable the fan-shaped blade 11 to be retracted, and in the process, spraying water to the water spraying holes 6 uniformly distributed at the lower end of the transmission shaft 4 and the side surface and the bottom surface of the rectangular steel sheet 5 to clean the concrete residues on the upper surface and the lower surface of the fan-shaped blade 11;
step two: the integral cleaning is carried out, the concrete residues on the multi-ring porous ring body 3 and the transmission shaft are cleaned by an external water pipe, and the device is prevented from being damaged in the later period;
step three: and repeatedly cleaning, repeatedly unfolding and folding the fan-shaped blade 11 after primary cleaning, continuously spraying water through the water spraying holes 6 in the process, repeatedly cleaning the concrete residues on the surface of the fan-shaped blade 11, and repeatedly cleaning the residual concrete on the whole device.
Preferably, in the step S6, the leveling is performed by performing level determination based on the leveling bubble 8 at the upper end of the propeller shaft 4, and then the micro-vibrator 13 in the rectangular steel sheet 5 at the corresponding position is started to level the device.
Preferably, the electromagnetic spring 14 above the fan-shaped blades 11 is operated by a control power supply, and is electrically expanded when the fan-shaped blades 11 are expanded, and is pressed against the fan-shaped blades 11, and is contracted when the fan-shaped blades 11 are cleaned, so that the fan-shaped blades 11 are loosened.
Preferably, when the device is placed in step S3, the fan-shaped blade box 1 has a thickness controlled within 50mm, and the device is placed within 50mm below the concrete level.
Compared with the prior art, the invention has the following beneficial effects:
(1) the construction method utilizes the combination of the fan-shaped blade and the multi-ring porous annular body to remove wet concrete integrally. The fan-shaped blade is sequentially unfolded through the linkage baffle on the side edge to form an approximate circular plane, and is combined with a multi-ring multi-hole ring body with the width exceeding the sum of the thickness of a concrete pile protection layer and the diameter of a steel bar for use, so that the concrete at the elevation position can be simply and efficiently divided into an upper part and a lower part, the concrete above the elevation is integrally removed in the later period, the cross section is approximately flat, the construction efficiency is high, the construction period is shortened, and the cost is low.
(2) According to the construction method, according to the actual distribution condition of the reinforcing steel bars in the cement concrete pile, the corresponding ring pieces on the bottom surface of the multi-ring porous ring body are adjusted, so that the circular through holes in the ring pieces correspond to the elliptical holes in the multi-ring porous ring body, redundant gaps of the elliptical holes are blocked by other ring pieces, the construction method can adapt to the distribution of the reinforcing steel bars in various quantities and positions, the circular through holes in the ring pieces are matched with the elliptical holes in the multi-ring porous ring body for use, and the construction method can be suitable for concrete piles with various reinforcing steel bar quantities, positions, diameters and distributions, and is high in flexibility and wide.
(3) According to the construction method, the fan-shaped blade is used for cutting the concrete before the concrete is not solidified, so that dust and noise can be reduced, concrete residues are prevented from splashing, the health and safety of construction personnel are guaranteed, the remaining non-solidified concrete after cutting can be reused when necessary, the secondary cleaning of the concrete is avoided, and engineering waste is reduced.
(4) According to the construction method, when the fan-shaped blade is unfolded and folded and cleaned, the electromagnetic spring can be adjusted to stretch, the fan-shaped blade is extruded when the fan-shaped blade is unfolded, so that the fan-shaped blade is tighter, the fan-shaped blade cannot fall off during unfolding, and the fan-shaped blade is contracted during folding, so that the fan-shaped blade is loose, and concrete residues between gaps of the fan-shaped blade can be cleaned, and therefore damage to the device is reduced.
(5) The side edges of the fan-shaped blades adopted by the construction method are provided with the linkage baffle plates, so that the adjacent fan-shaped blades can be mutually driven to unfold and fold, the fan-shaped blade at the bottommost layer is driven to unfold and fold through the transmission shaft, and the other fan-shaped blades are sequentially driven to unfold and fold through the linkage baffle plates to form an approximate plane, so that the fan-shaped blades can be folded and folded, the size of the device is reduced, the space is saved, and the concrete can be effectively and integrally cut off.
(6) The PVC sleeve can protect the reinforcing steel bars, so that the reinforcing steel bars can be kept independent of concrete and are convenient to separate, the reinforcing steel bars cannot be damaged by the fan-shaped blades, and the PVC sleeve only plays a role in guiding in the lifting process.
(7) After the device is placed, the micro-vibrator in the rectangular steel sheet is started to level the device, the divided concrete surface is enabled to be approximate to a plane, the concrete under the elevation can be vibrated to be more compact, the strength of the concrete is enhanced, and the micro-vibrator is started when the device is cleaned, so that the device is cleaned more fully.
(8) After the concrete is cut off by the construction method, the water spray holes can repeatedly clean the fan-shaped blades and concrete residues on other components, so that the later damage of the device is prevented, and the device can be used normally again.
Drawings
FIG. 1 is a schematic flow chart of the construction method of the present invention;
FIG. 2 is an overall schematic view of the present invention;
FIG. 3 is a schematic view of the bottom surface of the circular through hole of the present invention;
FIG. 4 is a drawing illustrating the process of expanding and contracting the fan-shaped blade according to the present invention;
FIG. 5 is a schematic view of a fan blade of the present invention;
figure 6 is a sectional view of a fan-shaped blade cartridge of the present invention;
FIG. 7 is a view showing the effect of the fan blade linkage of the present invention;
FIG. 8 is a schematic view of a rectangular steel sheet of the present invention;
FIG. 9 is a view showing the effect of the present invention.
In the figure: 1-fan-shaped blade box, 2-elliptical hole, 3-multi-ring multi-hole ring body, 4-transmission shaft, 5-rectangular steel sheet, 6-water spray hole, 7-flying ring, 8-leveling bubble, 9-ring sheet, 10-linkage baffle, 11-fan-shaped blade, 12-circular through hole, 13-micro vibrator, 14-electromagnetic spring, 15-motor and 16-support frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides the following technical solutions: a construction method for cutting off redundant wet concrete of an unset concrete pile is characterized by comprising the following steps:
s1: pouring concrete, namely pouring the concrete into the concrete mould to the elevation;
s2: adjusting the circular through holes 12, according to the position and distribution of the steel bars, rotating one of the three ring pieces 9 corresponding to the bottom surface of the multi-ring multi-hole ring body 3 to enable the circular through holes 12 on the ring pieces 9 to correspond to the positions of the steel bars, enabling the circular through holes 12 corresponding to the steel bars to coincide with the elliptical holes 2 for the steel bars to pass through, rotating the other ring pieces 9, enabling the non-circular through hole parts of the ring pieces 9 to coincide with the elliptical holes 2, sealing the parts, without the steel bars, on the elliptical holes 2, preventing later concrete from permeating, and controlling the diameter of the circular through holes 12 to be 20-26mm to ensure that the circular through holes 12 can be sleeved with the steel bars, so that the diameter of the steel; the circular through holes 12 on the ring pieces 9 are matched with the elliptical holes 2 on the multi-ring multi-hole ring body 3 for use, and the concrete pile can be suitable for concrete piles with various numbers, positions, diameters and distributions of reinforcing steel bars;
s3: the placing device is used for enabling the steel bars to penetrate through the previously adjusted circular through holes and then placing the device at the high position of the concrete pile head;
s4: protecting the steel bars, namely sleeving PVC sleeves on the steel bars above the elevation after the device is placed at the elevation, and sealing the upper and lower openings of the sleeves by soft elastic materials;
s5: filling the pile head, and continuously pouring concrete above the device until the concrete reaches the elevation of 500-1000 mm;
s6: leveling the device, namely starting a corresponding micro-vibrator 13 on the rectangular steel sheet 5 according to specific construction conditions to level the device;
s7: the fan-shaped blades 11 are unfolded, a motor 15 arranged at the upper end of the transmission shaft 4 is started to drive the transmission shaft 4 to rotate, the transmission shaft 4 drives the fan-shaped blades 11 at the bottom layer to be unfolded, and the other fan-shaped blades 11 are sequentially unfolded through the linkage baffle 10 at the side edge of the fan-shaped blades 11;
s8: the waste is recovered and cleaned, a crane is used for taking away the device and the redundant concrete materials above the device through the hanging ring 7 and recovering the waste, and then water is sprayed through the water spraying holes to clean the fan-shaped blade 11 and the integral device; the unfolded fan-shaped blade 11 is combined with the multi-ring multi-hole ring body 3 for use, so that wet concrete can be cut off integrally.
Preferably, the cleaning device in step S8 is performed by:
the method comprises the following steps: cleaning the fan-shaped blade 11, adjusting the reverse direction of the motor 15 to enable the fan-shaped blade 11 to be retracted, and in the process, spraying water to the lower end of the transmission shaft 4 and the water spraying holes 6 on the side surface and the bottom surface of the rectangular steel sheet uniformly to clean the concrete residues on the upper surface and the lower surface of the fan-shaped blade 11;
step two: the integral cleaning is carried out, the concrete residues on the multi-ring porous ring body and the transmission shaft are cleaned by an external water pipe, and the device is prevented from being damaged in the later period;
step three: and repeatedly cleaning, repeatedly unfolding and folding the fan-shaped blade 11 after primary cleaning, continuously spraying water through the water spraying holes 6 in the process, repeatedly cleaning the concrete residues on the surface of the fan-shaped blade 11, and repeatedly cleaning the residual concrete on the whole device.
Preferably, in the step S6, the leveling is performed by performing level determination based on the leveling bubble 8 at the upper end of the propeller shaft 4, and then the micro-vibrator 13 in the rectangular steel sheet 5 at the corresponding position is started to level the device.
Preferably, the electromagnetic spring above the fan-shaped blades 11 is controlled by a control power supply, and is electrified and extended when the fan-shaped blades 11 are unfolded, so as to press the fan-shaped blades 11, and is contracted when the fan-shaped blades 11 are cleaned, so that the fan-shaped blades 11 are loosened.
Preferably, when the device is placed in step S3, the fan-shaped blade box 1 has a thickness controlled within 50mm, and the device is placed within 50mm below the concrete level.
The rectangular steel sheets 5 are arranged in a plurality of annular arrays on the outer wall of the transmission shaft 4, and a water pipe and a micro-vibrator 13 are arranged inside the rectangular steel sheets 5. The quantity position of the linkage baffle 10 of a plurality of fan-shaped blade 11 side corresponds each other, and linkage baffle 10 is located the both sides of fan-shaped blade 11, and the thickness of linkage baffle 10 is greater than the thickness of fan-shaped blade 11, and every in a plurality of fan-shaped blade 11 all can drive fan-shaped blade 11 motion of its top and below through the linkage baffle 10 of side. The motor 15 is installed on the top of transmission shaft 4, and motor 15 passes through pivot and transmission shaft 4 rotatable coupling, and the outside fixed mounting of motor 15 has support frame 16. The water service pipe is arranged inside the transmission shaft 4 and the rectangular steel sheet 5, the water spraying holes 6 are formed in the lower end of the transmission shaft 4 and the bottom surface and the side surface of the rectangular steel sheet 5, the water spraying holes 6 in the lower end of the transmission shaft 4 and the bottom surface of the rectangular steel sheet 5 incline upwards, the water spraying holes 6 in the side surface of the rectangular steel sheet 5 incline downwards, the tail end of the water service pipe extends to the water spraying holes 6, and the initial end of the water service pipe is connected with a high. An electromagnetic spring 14 is arranged between the root ring of the top layer fan-shaped blade 11 and the inner upper wall of the fan-shaped blade box 1. The width of the multi-ring porous ring body 3 exceeds the sum of the thickness of the concrete pile protective layer and the diameter of the reinforcing steel bar.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A construction method for cutting off redundant wet concrete of an unset concrete pile is characterized by comprising the following steps:
s1: pouring concrete, namely pouring the concrete into the concrete mould to the elevation;
s2: adjusting the circular through holes (12), wherein according to the position and distribution of the steel bars, one of three ring pieces (9) corresponding to the bottom surface of the multi-ring multi-hole ring body (3) is rotated, so that the circular through holes (12) on the ring pieces (9) correspond to the positions of the steel bars, the circular through holes (12) corresponding to the steel bars are superposed with the elliptical holes (2) for the steel bars to pass through, the other ring pieces (9) are rotated, the non-circular through hole parts of the ring pieces (9) are superposed with the elliptical holes (2), the parts, without the steel bars, on the elliptical holes (2) are sealed, later-stage concrete infiltration is prevented, the steel bars can be sleeved in the circular through holes (12), the diameter of the circular through holes (12) is controlled to be 20-26mm, and the diameter of the steel bars required;
s3: the placing device is used for enabling the steel bars to pass through the round through holes (12) which are adjusted in advance, and then the placing device is placed at the height of the concrete pile head;
s4: protecting the steel bars, namely sleeving PVC sleeves on the steel bars above the elevation after the device is placed at the elevation, and sealing the upper and lower openings of the sleeves by soft elastic materials;
s5: filling the pile head, and continuously pouring concrete above the device until the concrete reaches the elevation of 500-1000 mm;
s6: leveling the device, namely starting a micro vibrator (13) on the corresponding rectangular steel sheet (5) according to specific construction conditions to level the device;
s7: the fan-shaped blades (11) are unfolded, a motor (15) arranged at the upper end of a transmission shaft (4) is started to drive the transmission shaft (4) to rotate, the transmission shaft (4) drives the fan-shaped blades (11) at the bottom layer to be unfolded, and the other fan-shaped blades (11) are sequentially unfolded through a linkage baffle (10) at the side edge of each fan-shaped blade (11);
s8: the waste material is recovered and cleaned by a device, a crane is used for taking away the device and the redundant concrete materials above the device through a hanging ring (7) and recovering the concrete materials, and then a water spraying hole (6) sprays water to clean a fan-shaped blade (11) and the whole device.
2. The construction method for cutting off the excess wet concrete of the unset concrete pile according to claim 1, characterized in that: the cleaning device in the step S8 is performed by:
the method comprises the following steps: cleaning the fan-shaped blade (11), adjusting the reverse direction of the motor (15) to enable the fan-shaped blade (11) to be retracted, and in the process, spraying water through the water spraying holes (6) uniformly distributed at the lower end of the transmission shaft (4) and the side surface and the bottom surface of the rectangular steel sheet (5) to clean concrete residues on the upper surface and the lower surface of the fan-shaped blade (11);
step two: the integral cleaning is carried out, concrete residues on the multi-ring porous ring body (3) and the transmission shaft (4) are cleaned by using an external water pipe, and the device is prevented from being damaged in the later period;
step three: and repeatedly cleaning, repeatedly unfolding and folding the fan-shaped blade (11) after primary cleaning, continuously spraying water through the water spraying holes (6) in the process, repeatedly cleaning concrete residues on the surface of the fan-shaped blade (11), and repeatedly cleaning the residual concrete on the whole device.
3. The construction method for cutting off the excessive wet concrete of the unset concrete pile according to claim 1, wherein the leveling of the device in step S6 is performed by performing level determination based on the leveling bubble (8) at the upper end of the driving shaft (4), and then the micro-vibrator (13) in the rectangular steel sheet (5) at the corresponding position is activated to level the device.
4. The construction method for cutting the excess wet concrete of the unset concrete pile according to claim 1, characterized in that the electromagnetic spring above the fan-shaped blades (11) is operated by a control power supply, and when the fan-shaped blades (11) are unfolded, the electromagnetic spring is electrified to stretch, press the fan-shaped blades (11), and when the fan-shaped blades (11) are cleaned, the electromagnetic spring shrinks, so that the fan-shaped blades (11) are loosened.
5. The method of claim 1, wherein the fan-shaped blade box (1) has a thickness controlled within 50mm when the device is placed in step S3, and the device is placed within 50mm below the concrete level.
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| CN201911053861.5A CN110847173B (en) | 2019-10-31 | 2019-10-31 | Construction method for cutting off excess wet concrete of unset concrete pile |
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| CN201911053861.5A CN110847173B (en) | 2019-10-31 | 2019-10-31 | Construction method for cutting off excess wet concrete of unset concrete pile |
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| CN110847173B true CN110847173B (en) | 2021-05-28 |
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| CN113199630B (en) * | 2021-04-02 | 2023-04-07 | 保定市利安道路工程有限公司 | High titanium type blast furnace slag concrete laitance recycle preparation facilities |
| CN113250186A (en) * | 2021-04-14 | 2021-08-13 | 中冶京诚工程技术有限公司 | Cast-in-place concrete pile head separation device and pile head breaking method |
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| CN108487238A (en) * | 2018-05-24 | 2018-09-04 | 北京良乡蓝鑫水利工程设计有限公司 | A kind of filling pile head processing unit and its construction method |
| CN108560539A (en) * | 2018-05-24 | 2018-09-21 | 北京良乡蓝鑫水利工程设计有限公司 | A kind of filling pile head device for excising and its construction method |
| CN108824431A (en) * | 2018-07-17 | 2018-11-16 | 中冶建工集团有限公司 | Superfilled pile head handles construction method |
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|---|---|---|---|---|
| CN205617384U (en) * | 2016-05-16 | 2016-10-05 | 中铁十七局集团第三工程有限公司 | Pile head circular cutting appurtenance |
| CN106836222A (en) * | 2017-02-14 | 2017-06-13 | 王本勋 | A kind of high ferro cushion cap pile crown girdling machine |
| CN108487238A (en) * | 2018-05-24 | 2018-09-04 | 北京良乡蓝鑫水利工程设计有限公司 | A kind of filling pile head processing unit and its construction method |
| CN108560539A (en) * | 2018-05-24 | 2018-09-21 | 北京良乡蓝鑫水利工程设计有限公司 | A kind of filling pile head device for excising and its construction method |
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Effective date of registration: 20231213 Address after: No. 8, Floor 1-2, Changjiang Mingyuan, No. 7, Yanshan Road, Nangang Cluster, Harbin Economic Development Zone, 150,000 Heilongjiang Patentee after: Heilongjiang Dingjie Road and Bridge Engineering Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20231213 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 230601 Ziyun Road 292, Hefei Economic and Technological Development Zone, Anhui Architectural University Patentee before: ANHUI JIANZHU University |