CN114808993B - Underwater undispersed concrete curing construction method - Google Patents
Underwater undispersed concrete curing construction method Download PDFInfo
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- CN114808993B CN114808993B CN202210554801.7A CN202210554801A CN114808993B CN 114808993 B CN114808993 B CN 114808993B CN 202210554801 A CN202210554801 A CN 202210554801A CN 114808993 B CN114808993 B CN 114808993B
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- 239000004567 concrete Substances 0.000 title claims abstract description 67
- 238000010276 construction Methods 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 229910001339 C alloy Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 238000007569 slipcasting Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E02D15/06—Placing concrete under water
-
- 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
Abstract
The invention discloses an underwater undispersed concrete curing construction method, which comprises seven steps, wherein in the grouting process, a high-pressure air pump is started to drive a rotating pipe to rotate by a driving mechanism, the grouting pipe is slowly pulled upwards by a hoisting device, underwater undispersed concrete flows into a pile hole from a storage hopper along the grouting pipe through the bottom of the rotating pipe, and the driving mechanism drives the rotating pipe to rotate so as to avoid pipe burying. According to the underwater non-dispersed concrete curing construction method provided by the invention, the rotating pipe driven to rotate by the high-pressure air pump matched with the driving mechanism is arranged at the lower end of the grouting pipe, so that the pipe burying phenomenon is avoided, the flow of the underwater non-dispersed concrete can be accelerated, the grouting efficiency is improved, and the spiral blades I are arranged in the rotating pipe and the grouting pipe, so that the underwater non-dispersed concrete in the grouting pipe can be pushed downwards, and the air blocking phenomenon is further effectively avoided.
Description
Technical Field
The invention relates to the field of building construction, in particular to an underwater undispersed concrete curing construction method.
Background
The underwater undispersed concrete has good dispersion resistance and fluidity, and can effectively reduce the entry of corrosive medium in the concrete pouring process of the cast-in-place pile and furthest reduce the adverse effect of the corrosive medium on the quality of the concrete and the long-term durability of the cast-in-place pile by matching with the corresponding underwater pouring construction technology.
At present, common underwater concrete pouring methods comprise a conduit method, a bagging method, a hanging tank method, a slurry lifting method and the like. The conduit method is an underwater pouring construction method which is widely applied, and has the advantages of good pouring continuity, high pouring speed, difficult aggregate separation, capability of meeting construction and design requirements to the greatest extent, simple and easy operation of construction equipment and low pouring cost.
However, the existing construction mode has the problems that the conduit is fixed in the concrete and is difficult to pull out because the conduit is buried in the concrete or the internal and external concretes of the conduit are initially set in the pouring process, so that the pipe burying phenomenon occurs in the device, and in addition, the air blocking of the blanking funnel is sometimes caused because the pile body is overlong and the concrete pouring speed is too high, and the like, a large amount of concrete is accumulated in the blanking funnel, and the concrete can be continuously poured after the manual dredging is needed, so that the pouring quality and the construction efficiency of pile foundation concrete are seriously influenced.
Therefore, a solidification construction method of underwater non-dispersed concrete is provided.
Disclosure of Invention
Aiming at the problems in the background art, the invention aims to provide an underwater non-dispersed concrete curing construction method for solving the problems in the background art.
The technical aim of the invention is realized by the following technical scheme:
the underwater non-dispersed concrete curing construction method comprises the following steps:
s1, vertically placing a reinforcement cage into a pile hole by using hoisting equipment;
s2, connecting a grouting pipe with a connecting flange fixed at the bottom and a rotating pipe with a bearing flange connected with the top in a rotating way through bolts, wherein the rotating pipe is positioned at the bottom of the grouting pipe and is communicated with the grouting pipe, an air outlet of a high-pressure air pump is communicated with a connecting nozzle in a driving mechanism through a connecting pipe, the driving mechanism is sleeved at the upper end of the rotating pipe and is used for driving the rotating pipe to rotate, and the high-pressure air pump is fixed on the ground;
s3, vertically placing the grouting pipe connected with the rotating pipe into the pile hole through hoisting equipment, and controlling the distance between the bottom of the rotating pipe and the bottom of the pile hole to be 0.3-0.5 m;
s4, filling underwater undispersed concrete into a storage hopper arranged at the top of the grouting pipe;
s5, starting the high-pressure air pump, enabling the driving mechanism to drive the rotating pipe to rotate, pulling out the plug arranged at the bottom of the storage hopper, and slowly pulling the grouting pipe upwards through the lifting equipment;
s6, enabling the underwater undispersed concrete to flow into the pile hole from the storage hopper along the grouting pipe through the bottom of the rotating pipe, and enabling the driving mechanism to drive the rotating pipe to rotate so as to avoid pipe burying;
and S7, after grouting is finished, closing the high-pressure air pump, and cleaning the grouting pipe and the rotating pipe.
According to the underwater non-dispersed concrete curing construction method adopting the technical scheme, the rotating pipe driven to rotate by the high-pressure air pump in cooperation with the driving mechanism is arranged at the lower end of the grouting pipe, so that the phenomenon of pipe burying is avoided.
The underwater non-dispersed concrete curing construction method comprises the following steps: the driving mechanism comprises an annular block, the upper end of the rotating pipe is fixedly sleeved with the annular block, the inside of the annular block is hollow, an air inlet is formed in the side face of the annular block, the upper end of the annular block is rotationally connected with the annular sleeve through sealing bearings, the sealing bearings are arranged in two, the air inlet is located between the sealing bearings, the lower end of the connecting nozzle is communicated with the inside of the annular sleeve, and a plurality of air nozzles are communicated with the lower end of the annular block at equal angles.
Through adopting above-mentioned technical scheme's actuating mechanism by annular piece, annular cover a plurality of jet nozzles and two sealed bearings constitute, through the inside back of pressing into hollow annular piece that sets up with high-pressure gas by jet nozzle blowout, under the promotion of reverse effort for the pivoted tube rotates, and overall structure design is inseparable moreover, does not occupy stake hole inner space, consequently also is suitable for on the stake hole that the diameter is less.
The underwater non-dispersed concrete curing construction method comprises the following steps: the inner wall of the rotary pipe and the inner wall of the grouting pipe are fixedly connected with first helical blades.
Through adopting above-mentioned technical scheme, through set up helical blade one in the rotation intraductal and slip casting intraductal, can not disperse concrete downwards promote under water in the slip casting intraductal, and then effectively avoid the emergence of air blocking phenomenon.
The underwater non-dispersed concrete curing construction method comprises the following steps: the air jet nozzle is provided with a high-pressure spray head.
By adopting the technical scheme, enough reaction force can be provided for driving the rotating tube, so that the rotating tube can smoothly rotate.
The underwater non-dispersed concrete curing construction method comprises the following steps: the upper end of the air jet nozzle is arranged obliquely upwards.
By adopting the technical scheme, the blown high-pressure gas is upwardly diffused, so that the underwater undispersed concrete is prevented from being scattered by the high-pressure gas.
The underwater non-dispersed concrete curing construction method comprises the following steps: the pile hole is characterized in that guide assemblies are arranged on the ground, the two groups of guide assemblies are arranged, the two groups of guide assemblies are symmetrically arranged at the center of the pile hole, each guide assembly comprises a fixing plate and a screw rod, the fixing plates are fixed on the ground through bolts, threaded holes are formed in the side faces of the fixing plates, one end thread of each screw rod penetrates through the threaded holes in a threaded mode, and one end of each screw rod, which is close to the pile hole, is connected with an arc-shaped plate in a rotating mode.
Through adopting above-mentioned technical scheme, can restrict the slip casting pipe between two arc through rotating the lead screw, effectively avoid the slip casting pipe to appear rocking the phenomenon at the promotion in-process.
The underwater non-dispersed concrete curing construction method comprises the following steps: the inner side of the arc-shaped plate is rotationally connected with a plurality of rollers.
Through adopting above-mentioned technical scheme, through setting up the gyro wheel, can effectively reduce the friction of arc and slip casting pipe outer wall.
The underwater non-dispersed concrete curing construction method comprises the following steps: the screw rod is far away from one end fixedly connected with hand wheel of arc, the antiskid line has been seted up on the hand wheel.
By adopting the technical scheme, the screw rod is convenient for constructors to rotate.
The underwater non-dispersed concrete curing construction method comprises the following steps: the rotating speed of the rotating pipe is 40r/min-60r/min.
By adopting the technical scheme, under the condition of ensuring normal operation, the rotating pipe is kept at a lower rotating speed, and the stability of equipment operation is improved.
The underwater non-dispersed concrete curing construction method comprises the following steps: the first helical blade is made of low-carbon alloy steel.
By adopting the technical scheme, the low-carbon alloy steel has excellent wear resistance and strength, the service life of the first helical blade is prolonged, and the first helical blade is not easy to deform during operation.
In summary, the invention has the following advantages:
according to the underwater non-dispersed concrete curing construction method provided by the invention, the pipe burying phenomenon is avoided by arranging the rotating pipe which is driven to rotate by the high-pressure air pump in cooperation with the driving mechanism at the lower end of the grouting pipe, the flow of the underwater non-dispersed concrete can be accelerated, and the grouting efficiency is improved.
By arranging the first helical blades in the rotating pipe and the grouting pipe, the underwater undispersed concrete in the grouting pipe can be pushed downwards, and the occurrence of air blocking is effectively avoided;
through the guide assembly who sets up, can restrict the slip casting pipe between two arc, effectively avoid the slip casting pipe to appear rocking the phenomenon at promotion in-process, guarantee slip casting quality and safety.
Drawings
FIG. 1 is one of the schematic diagrams of an embodiment of the present invention;
FIG. 2 is a second schematic diagram of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a connection structure between a grouting pipe and a rotating pipe according to an embodiment of the present invention;
FIG. 4 is a schematic view of a partial explosion configuration of an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of an annular block according to an embodiment of the present invention;
FIG. 6 is a schematic view of an exploded construction of a drive mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic view of a connection structure between a screw and an arcuate plate according to an embodiment of the present invention;
fig. 8 is a schematic view showing a connection structure of a rotary tube and a first helical blade according to an embodiment of the present invention.
Reference numerals:
1. ground surface; 2. pile holes; 3. underwater non-dispersed concrete; 5. a storage hopper; 6. a high pressure air pump; 7. a connecting pipe; 8. a rotary tube; 9. a fixing plate; 10. an arc-shaped plate; 11. a screw rod; 12. a hand wheel; 13. a roller; 14. a connecting flange; 15. a bearing flange; 16. an annular sleeve; 17. a connecting nozzle; 18. sealing the bearing; 19. an annular block; 20. an air jet nozzle; 21. an air inlet; 22. a first helical blade; 23. and a second helical blade.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the embodiment provides an underwater non-dispersed concrete curing construction method, which specifically comprises the following steps:
s1, vertically placing a reinforcement cage into a pile hole 2 by using hoisting equipment;
s2, connecting a grouting pipe 4 with a connecting flange 14 fixed at the bottom and a rotating pipe 8 with a bearing flange 15 rotatably connected to the top through bolts, wherein the rotating pipe 8 is positioned at the bottom of the grouting pipe 4 and is communicated with the grouting pipe 4, a gas outlet of a high-pressure gas pump 6 is communicated with a connecting nozzle 17 in a driving mechanism through a connecting pipe 7, the driving mechanism is sleeved at the upper end of the rotating pipe 8 and is used for driving the rotating pipe 8 to rotate, and the high-pressure gas pump 6 is fixed on the ground 1;
s3, vertically placing the grouting pipe 4 connected with the rotary pipe 8 into the pile hole 2 through hoisting equipment, and controlling the distance between the bottom of the rotary pipe 8 and the bottom of the pile hole 2 to be 0.3-0.5 m;
s4, filling underwater undispersed concrete 3 into a storage hopper 5 arranged at the top of the grouting pipe 4;
s5, starting the high-pressure air pump 6, enabling the driving mechanism to drive the rotary pipe 8 to rotate, pulling out the plug arranged at the bottom of the storage hopper 5, and slowly pulling the grouting pipe 4 upwards through the hoisting equipment;
s6, enabling the underwater undispersed concrete 3 to flow into the pile hole 2 from the storage hopper 5 along the grouting pipe 4 through the bottom of the rotary pipe 8, and enabling the driving mechanism to drive the rotary pipe 8 to rotate so as to avoid pipe burying;
and S7, after grouting is finished, the high-pressure air pump 6 is closed, and the grouting pipe 4 and the rotary pipe 8 are cleaned.
Specifically, as shown in fig. 3 to 6, in the present embodiment: the driving mechanism comprises annular blocks 19, the annular blocks 19 are fixedly sleeved at the upper ends of the rotating pipes 8, the interiors of the annular blocks 19 are hollow, air inlets 21 are formed in the side faces of the annular blocks 19, the upper ends of the annular blocks 19 are rotatably connected with annular sleeves 16 through sealing bearings 18, two sealing bearings 18 are arranged, the air inlets 21 are arranged between the two sealing bearings 18, the lower ends of connecting nozzles 17 are communicated with the interiors of the annular sleeves 16, a plurality of air nozzles 20 are communicated with the lower ends of the annular blocks 19 at equal angles, when the driving mechanism is used, the high-pressure air pump 6 is started to press high-pressure air into the interiors of the annular blocks 19 which are hollow and then is sprayed out by the air nozzles 20, the rotating pipes 8 are enabled to rotate under the pushing of reverse acting force, the whole structure design is compact, the space inside the pile hole 2 is not occupied, and the driving mechanism is also applicable to the pile hole 2 with smaller diameter.
Specifically, as shown in fig. 8, in the present embodiment: the inner wall of the rotating pipe 8 and the inner wall of the grouting pipe 4 are fixedly connected with the first helical blades 22, and the underwater undispersed concrete 3 in the grouting pipe 4 can be pushed downwards by arranging the first helical blades 22 in the rotating pipe 8 and the grouting pipe 4, so that the occurrence of the air blocking phenomenon is effectively avoided.
Specifically, in the present embodiment: the high-pressure spray nozzle 20 is provided with a high-pressure spray nozzle, and the high-pressure spray nozzle can provide enough reaction force for driving the rotary pipe 8, so that the rotary pipe 8 can smoothly rotate, and the upper end of the air spray nozzle 20 is obliquely arranged upwards in order to prevent the underwater undispersed concrete 3 from being dispersed by high-pressure gas.
Specifically, as shown in fig. 1 and 8, in the present embodiment: the utility model provides a be provided with guiding component on ground 1, guiding component is provided with two sets of, two sets of guiding component set up with the centrosymmetric of stake hole 2, guiding component includes fixed plate 9 and lead screw 11, fixed plate 9 passes through the bolt fastening on ground 1, threaded hole has been seted up to the side of fixed plate 9, the one end screw thread rotation of lead screw 11 runs through the threaded hole, the one end rotation that lead screw 11 is close to stake hole 2 is connected with arc 10, can restrict grouting pipe 4 between two arcs 10 through rotating lead screw 11, effectively avoid grouting pipe 4 to appear rocking the phenomenon in the promotion in-process, in order to reduce the friction of arc 10 and grouting pipe 4 outer wall, the inboard rotation of arc 10 is connected with a plurality of gyro wheels 13, in order to make things convenient for constructor to rotate lead screw 11, the one end fixedly connected with hand wheel 12 of arc 10 is kept away from to lead screw 11, the antiskid line has been seted up on the hand wheel 12.
Specifically, in the present embodiment: the rotating speed of the rotating pipe 8 is 40r/min-60r/min, so that the rotating pipe 8 can keep a lower rotating speed under the condition of ensuring normal operation, and the running stability of equipment is improved.
Specifically, in the present embodiment: the first helical blade 22 is made of low-carbon alloy steel, which has excellent wear resistance and strength, improves the service life of the first helical blade 22, and is not easy to deform during operation.
As shown in fig. 2 and 3, the outer wall of the rotating tube 8 is welded with the second helical blade 23, the rotating tube 8 is matched with the second helical blade 23 arranged on the outer wall of the rotating tube 8, so that the underwater non-dispersed concrete 3 flowing into the pile hole 2 can be continuously rotated, the underwater non-dispersed concrete 3 flowing into the pile hole 2 is pushed downwards, the pipe burying phenomenon can be avoided, meanwhile, the non-dispersed concrete 3 positioned in the pile hole 2 can be further compacted, the compactness of the non-dispersed concrete 3 is improved, the strength after solidification is ensured, the flow of the underwater non-dispersed concrete 3 can be accelerated, and the grouting efficiency is improved.
To sum up: according to the underwater non-dispersed concrete curing construction method provided by the invention, the rotating pipe 8 driven to rotate by the high-pressure air pump 6 in cooperation with the driving mechanism is arranged at the lower end of the grouting pipe 4, and the spiral blade II 23 arranged on the outer wall of the rotating pipe 8 is matched, so that the underwater non-dispersed concrete 3 flowing into the pile hole 2 can be continuously rotary-cut, the underwater non-dispersed concrete 3 flowing into the pile hole 2 is pushed downwards, the pipe burying phenomenon is avoided, the flow of the underwater non-dispersed concrete 3 can be accelerated, and the grouting efficiency is improved;
by arranging the first helical blades 22 in the rotating pipe 8 and the grouting pipe 4, the underwater undispersed concrete 3 in the grouting pipe 4 can be pushed downwards, and the occurrence of the air blocking phenomenon can be effectively avoided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The underwater non-dispersed concrete curing construction method is characterized by comprising the following steps of:
s1, vertically placing a reinforcement cage into a pile hole (2) by using hoisting equipment;
s2, connecting a grouting pipe (4) with a connecting flange (14) fixed at the bottom and a rotating pipe (8) with a bearing flange (15) connected at the top in a rotating way through bolts, wherein the rotating pipe (8) is positioned at the bottom of the grouting pipe (4) and is communicated with the grouting pipe (4), a gas outlet of a high-pressure gas pump (6) is communicated with a connecting nozzle (17) in a driving mechanism through a connecting pipe (7), and the driving mechanism is sleeved at the upper end of the rotating pipe (8) and is used for driving the rotating pipe (8) to rotate;
s3, vertically placing the grouting pipe (4) connected with the rotating pipe (8) into the pile hole (2) through hoisting equipment, and controlling the distance between the bottom of the rotating pipe (8) and the bottom of the pile hole (2) to be 0.3-0.5 m;
s4, filling underwater undispersed concrete (3) into a storage hopper (5) arranged at the top of the grouting pipe (4);
s5, starting the high-pressure air pump (6) to enable the driving mechanism to drive the rotary pipe (8) to rotate, pulling out the plug arranged at the bottom of the storage hopper (5), and slowly pulling the grouting pipe (4) upwards through the lifting equipment;
s6, enabling the underwater undispersed concrete (3) to flow into the pile hole (2) from the storage hopper (5) along the grouting pipe (4) through the bottom of the rotary pipe (8), and enabling the rotary pipe (8) to rotate by the driving mechanism so as to avoid pipe burying;
and S7, after grouting is finished, the high-pressure air pump (6) is closed, and the grouting pipe (4) and the rotating pipe (8) are cleaned.
2. The underwater non-dispersive concrete curing construction method according to claim 1, wherein: the driving mechanism comprises an annular block (19), the upper end of the rotating pipe (8) is fixedly sleeved with the annular block (19), the inside of the annular block (19) is hollow, an air inlet (21) is formed in the side face of the annular block (19), the upper end of the annular block (19) is rotationally connected with an annular sleeve (16) through a sealing bearing (18), the sealing bearing (18) is provided with two air inlets (21) located between the two sealing bearings (18), the lower end of the connecting nozzle (17) is communicated with the inside of the annular sleeve (16), and a plurality of air nozzles (20) are communicated with the lower end of the annular block (19) at equal angles.
3. The underwater non-dispersive concrete curing construction method according to claim 2, wherein: the inner wall of the rotating pipe (8) and the inner wall of the grouting pipe (4) are fixedly connected with a first helical blade (22).
4. The underwater non-dispersive concrete curing construction method according to claim 2, wherein: the air jet nozzle (20) is provided with a high-pressure spray head.
5. The underwater non-dispersive concrete curing construction method according to claim 4, wherein: the upper end of the air jet nozzle (20) is arranged obliquely upwards.
6. The underwater non-dispersive concrete curing construction method according to claim 1, wherein: the novel pile is characterized in that guide assemblies are arranged on the ground (1), the two groups of guide assemblies are arranged in the mode of being symmetrical to the center of the pile hole (2), the guide assemblies comprise fixing plates (9) and screw rods (11), the fixing plates (9) are fixed on the ground (1) through bolts, threaded holes are formed in the side faces of the fixing plates (9), one end thread of each screw rod (11) rotates to penetrate through the threaded holes, and one end of each screw rod (11) close to the pile hole (2) rotates to be connected with an arc-shaped plate (10).
7. The underwater non-dispersive concrete curing construction method according to claim 6, wherein: the inner side of the arc-shaped plate (10) is rotatably connected with a plurality of rollers (13).
8. The underwater non-dispersive concrete curing construction method according to claim 7, wherein: one end of the screw rod (11) far away from the arc-shaped plate (10) is fixedly connected with a hand wheel (12), and anti-skidding lines are formed in the hand wheel (12).
9. The underwater non-dispersive concrete curing construction method according to claim 1, wherein: the rotating speed of the rotating pipe (8) is 40r/min-60r/min.
10. The underwater non-dispersive concrete curing construction method according to claim 3, wherein: the first helical blade (22) is made of low-carbon alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210554801.7A CN114808993B (en) | 2022-05-19 | 2022-05-19 | Underwater undispersed concrete curing construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210554801.7A CN114808993B (en) | 2022-05-19 | 2022-05-19 | Underwater undispersed concrete curing construction method |
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| CN114808993A CN114808993A (en) | 2022-07-29 |
| CN114808993B true CN114808993B (en) | 2024-02-09 |
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| JP2007255107A (en) * | 2006-03-24 | 2007-10-04 | Shimizu Corp | Construction method for cast-in-place concrete pile |
| CN201459736U (en) * | 2008-09-19 | 2010-05-12 | 冯志源 | Device for fast cleaning bottom of pile |
| CN110438985A (en) * | 2019-07-26 | 2019-11-12 | 湖南化工地质工程勘察院有限责任公司 | Cast-in-situ bored pile pile foundation supporting course reinforcing construction method |
| CN212582660U (en) * | 2020-06-13 | 2021-02-23 | 北京综建科技有限公司 | Long spiral drill rod for combined curtain cast-in-place pile |
| CN113250200A (en) * | 2021-05-20 | 2021-08-13 | 中电建路桥集团有限公司 | Novel environmental protection fibre cement layering slip casting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827274B (en) * | 2020-07-22 | 2021-08-24 | 浙江大学 | High-strength grouting method for marine wind power weakly-weathered bedrock single-pile socketed foundation |
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2022
- 2022-05-19 CN CN202210554801.7A patent/CN114808993B/en active Active
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| JP2007255107A (en) * | 2006-03-24 | 2007-10-04 | Shimizu Corp | Construction method for cast-in-place concrete pile |
| CN201459736U (en) * | 2008-09-19 | 2010-05-12 | 冯志源 | Device for fast cleaning bottom of pile |
| CN110438985A (en) * | 2019-07-26 | 2019-11-12 | 湖南化工地质工程勘察院有限责任公司 | Cast-in-situ bored pile pile foundation supporting course reinforcing construction method |
| CN212582660U (en) * | 2020-06-13 | 2021-02-23 | 北京综建科技有限公司 | Long spiral drill rod for combined curtain cast-in-place pile |
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| Title |
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| 钻孔灌注桩施工中相关问题的处理方法;张岩;;低温建筑技术(第04期);第116-118页 * |
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