CN106013162B - A kind of construction technology of drape process pouring underwater concrete - Google Patents
A kind of construction technology of drape process pouring underwater concrete Download PDFInfo
- Publication number
- CN106013162B CN106013162B CN201610397028.2A CN201610397028A CN106013162B CN 106013162 B CN106013162 B CN 106013162B CN 201610397028 A CN201610397028 A CN 201610397028A CN 106013162 B CN106013162 B CN 106013162B
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- China
- Prior art keywords
- concrete
- delivery pump
- pump pipe
- pile hole
- tube connector
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Classifications
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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
- E02D15/06—Placing concrete under water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
- E02D2250/0084—Production methods for working underwater using pneumatical means
Abstract
The present invention discloses a kind of construction technology of drape process pouring underwater concrete, comprises the following steps：S1, the more concrete delivery pump pipes being sequentially connected in series are set in drilled pile hole body；Concrete delivery pump pipe is fixed on the casting platform on the upside of drilled pile hole body；S2, by pump tube connector concrete delivery pump pipe is connected with force feed connecting tube, the other end of force feed connecting tube is connected with concrete transport device；Pump tube connector is provided with stomata and device for pressure measurement, and the embolism for being used for closing or open stomata is provided with stomata；During concrete perfusion, the stomata on pump tube connector is closed by embolism, concrete press-casting is entered to the bottom hole of drilled pile hole body using concrete transport device, force feed connecting tube and concrete delivery pump pipe.The present invention directly by concrete pump by concrete press-casting to position is poured, reduce construction link, concrete energy continuous pouring, do not produce segregation phenomenon so that filling concrete is smoothed out, ensure construction quality.
Description
Technical field
The invention belongs to architectural engineering construction technique field, and in particular to a kind of construction of drape process pouring underwater concrete
Technique.
Background technology
In architectural engineering, foundation engineering is extensively using deep foundation shapes such as open caisson, caisson, diaphram wall and cast-in-situ bored piles
Formula；Back cover of open caisson and caisson etc. often needs to carry out concrete placed under water, and diaphram wall and cast-in-situ bored pile are then in mud
Casting concrete in slurry；At present, architectural engineering underwater concrete construction typically uses catheterized reperfusion.Catheterized reperfusion mixes under water
Solidifying soil is in China using for many years, and during which in addition to the utensils such as conduit improve to some extent, its technical principle and construction technology do not have always
Obtain basic improvement.During using catheterized reperfusion concrete, concrete need to can typically enter by following path pours portion
Position：Concrete mixture enters storage bin hopper by conveying equipments such as transport vehicle, concrete pumps；Then from storage bin hopper with freely falling body
Mode enters conduit；Entered again by the vertical transport of conduit from conduit bottom and pour position.In above process, in gravity and
In the presence of external force (such as shaking force), concrete mixture, which often has, to be separated from each other and causes uneven tendency, produces isolation
And causing " card pipe ", its reason is mainly that concrete mixture can not enter directly and continuously and pour position；It is simultaneously because mixed
Solidifying soil is to pour position by deadweight jacking pouring concrete arrival, often because gravity pressure deficiency is difficult to irrigate.
In engineering practice, the reason such as Chang Yin " card pipe ", insufficient pressure causes to pour discontinuous, construction unsuccessfully etc., right
Architectural engineering causes heavy losses.Therefore, those skilled in the art, which need badly, provides a kind of construction of continuous pouring underwater concrete
Technique.
The content of the invention
For above-mentioned deficiency, the invention provides a kind of construction technology of continuous pouring underwater concrete.It is of the invention direct
By concrete pump by concrete press-casting to position is poured, reduce construction link, concrete energy continuous pouring, do not produce
Segregation phenomenon so that filling concrete is smoothed out, and ensures construction quality.
To achieve the above object, present invention employs following technical scheme：
A kind of construction technology of drape process pouring underwater concrete, comprises the following steps：
S1, the more concrete delivery pump pipes being sequentially connected in series, the concrete delivery pump pipe are set in drilled pile hole body
Axis it is parallel with the axis of drilled pile hole body；The concrete delivery pump pipe be fixed on the upside of drilled pile hole body pour it is flat
On platform；
S2, by pump tube connector the concrete delivery pump pipe is connected with force feed connecting tube, the force feed connecting tube
The other end be connected with concrete transport device；The pump tube connector is provided with stomata and device for pressure measurement, at stomata
Provided with the embolism for closing or opening stomata；During concrete perfusion, the stomata on pump tube connector is closed by embolism, utilized
Concrete transport device, force feed connecting tube and concrete delivery pump pipe enter concrete press-casting the bottom hole of drilled pile hole body.
Preferably, the joint of the concrete delivery pump pipe is provided with protective cover.
Preferably, support frame is provided with the upside of the casting platform, support frame is provided with for fixing the concrete
The chuck of delivery pump pipe.
Preferably, the concrete transport device is concrete mixer.
Preferably, the pressure of the device for pressure measurement measurement pump tube connector inner concrete, when device for pressure measurement is surveyed
When the pressure obtained is equal to or higher than setting warning value, device for pressure measurement sends alarm signal to concrete transport device, described
Concrete transport device is stopped.
Preferably, when the concrete that the concrete gravity insufficient pressure in concrete delivery pump pipe has been irrigated with jacking,
Increase discharge pressure using the concrete transport device.
Preferably, when the concrete delivery pump pipe buried depth in drilled pile hole body is excessive needs to remove pump line, pump line is opened
Embolism at connector stomata, the vacuum state of the following concrete delivery pump pipe of pump tube connector is released, so as to concrete conveyance
Concrete in pump line declines under Gravitative Loads, finally empties the concrete of pump tube connector lower end, now removes in height
The concrete delivery pump pipe of position, and the concrete delivery pump pipe of low level is lifted up；
Then the concrete delivery pump pipe in reconnection pump tube connector and the drilled pile hole body do not removed, connect in pump line
Connect under device stomata opening, the slow delivering concrete of concrete transport device fills the mixed of the emptying in drilled pile hole body
Native delivery pump pipe is coagulated, and the air in concrete delivery pump pipe is discharged by the stomata on pump tube connector, is finally sealed with embolism
Close the stomata of pump tube connector and continue Pumping concrete.
Preferably, before being step S2 before filling concrete, by the concrete delivery pump pipe in drilled pile hole body
Termination refutes slush pump and carries out secondary pile hole cleaning.
Preferably, when drilled pile hole body is relatively large in diameter, multiply concrete arranged side by side is laid in same drilled pile hole body
Delivery pump pipe.
Preferably, in filling process, it should remain that the concrete delivery pump pipe lower end in drilled pile hole body is embedded to
Below the top of concrete of perfusion at 2~6 meters.
The beneficial effects of the present invention are：
1) underwater concrete can be directly transported to and pour position by the present invention by concrete delivery pump pipe, be reduced mixed
Solidifying soil transhipment link, phenomena such as effectively avoiding concrete disintegration, card pipe；The continuity of work progress is ensure that, reduces and applies
Work difficulty, improves efficiency of construction.
2) present invention does not need the relevant devices such as special storage bin hopper, conduit, and constructing operation is easier, has very strong
Applicability.
3) present invention is more suitable for multiple spot continuous pouring, it is only necessary to the force feed connecting tube being connected with concrete transport device
The concrete delivery pump pipe being connected in new drilled pile hole body can carry out continuous pouring work, and efficiency of construction significantly improves.
4) when drilled pile hole body, which is relatively large in diameter, needs to irrigate substantial amounts of concrete, can be laid in same drilled pile hole body
More concrete delivery pump pipes and form multiply vertical transport passage, so as to greatly accelerate speed of application.
5) present invention can be solved effectively because of gravity pressure using the concrete transport devices such as concrete pump increase pressure
Deficiency can not smooth concrete perfusion difficulty, it is ensured that the continuity of filling process.
6) present invention by concrete delivery pump pipe directly by concrete conveyance to position is poured, greatly reduce concrete
Waste, simultaneously effective saved material and protected environment.
7) present invention is provided with device for pressure measurement on pump tube connector, to measure the pressure of pump tube connector inner concrete
Power, so as to by the concrete pressure control in pump tube connector below setting warning value, to avoid because pipe laying is too deep or
Plugging and may caused by it is dangerous.
Brief description of the drawings
Fig. 1 is the structure schematic diagram of the present invention.
The implication of label symbol is as follows in figure：
1- drilled pile hole body 11- slurry body 2- concrete delivery pump pipe 20- protective covers
3- support frame 4- chuck 5- pump tube connectors
50- stomata 51- embolism 52- device for pressure measurement 53- recanalization devices
6- concrete mixer 60- force feed connecting tubes
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present invention is clearly and completely retouched
State.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
By taking bored piles concrete as an example, as shown in Figure 1.
The present invention substitutes conduit by the use of concrete delivery pump pipe 2 and is used as the vertical transport concrete in drilled pile hole body 1
Passage, concrete delivery pump pipe 2 joint set protective cover 20, with avoid the junction contacts of concrete delivery pump pipe 2 or
Collide steel reinforcement cage and the problem of poorly sealed occur；Using support frame 3 and chuck 4 by the concrete conveyance in drilled pile hole body 1
Pump line 2 is fixed on casting platform, concrete delivery pump pipe 2 up and down or must not be moved horizontally in casting process；Using special
Concrete delivery pump pipe 2 in drilled pile hole body 1 is connected by pump tube connector 5 with force feed connecting tube 60, force feed connection
The input of pipe 60 is connected with concrete pump or the grade concrete transport device of concrete mixer 6, directly utilizes concrete
Pump truck 6 and whole concrete delivery pump pipe system enter concrete press-casting the bottom hole of drilled pile hole body 1；When concrete gravity pressure
When being not enough to the concrete that jacking has irrigated, increase pressure using concrete mixer 6.
When needing to remove portions when the buried depth of concrete delivery pump pipe 2 in drilled pile hole body 1 is excessive, pump line is opened
Embolism 51 at the stomata 50 of connector 5, the vacuum state of pump tube connector concrete delivery pump pipe 2 below 5 is released, makes coagulation
Concrete in native delivery pump pipe 2 declines under Gravitative Loads, the upper end of concrete delivery pump pipe 2 in emptying drilled pile hole body
Concrete, so as to remove the concrete delivery pump pipe 2 i.e. in a high position of upper end, lifting is mixed in low level then up
Native delivery pump pipe 2 is coagulated, until meeting that perfusion requires；Remaining coagulation in reconnection pump tube connector 5 and drilled pile hole body again
Native delivery pump pipe 2, under the opening of stomata 5 of pump tube connector 5, the full drilling of 6 slow delivering concrete of concrete mixer
Emptying section concrete delivery pump pipe 2 in stake holes body 9, and concrete pump is discharged by the stomata 50 on pump tube connector 5
Air in pipe 2, to avoid the formation of high pressure gas bag, then close the stomata 50 on pump tube connector 5 with embolism 51 and continue to press
Note concrete.
Above flow is repeated, until completing filling concrete.
Device for pressure measurement 52 is provided with the pump tube connector 5, device for pressure measurement 52 is measured in pump tube connector 5
The pressure of concrete, when the pressure that device for pressure measurement 52 measures is equal to or higher than setting warning value, device for pressure measurement 52
Alarm signal is sent to concrete mixer 6, the concrete mixer 6 is stopped.
It should be noted that：Before filling concrete, i.e., by concrete delivery pump pipe 2 by pump tube connector 5 with
Before force feed connecting tube 60 connects as one, can plug into the upper end of concrete delivery pump pipe 2 in drilled pile hole body 1 slush pump
Carry out secondary pile hole cleaning；In filling process, remain that the embedment of the lower end of concrete delivery pump pipe 2 in drilled pile hole body 1 has filled
2~6 meters below the top of concrete of note.
Claims (9)
1. a kind of construction technology of drape process pouring underwater concrete, it is characterised in that comprise the following steps：
S1, the more concrete delivery pump pipes (2) being sequentially connected in series, the concrete pump are set in drilled pile hole body (1)
The axis for managing (2) is parallel with the axis of drilled pile hole body (1)；The concrete delivery pump pipe (2) is fixed on drilled pile hole body
(1) on the casting platform on the upside of；
S2, by pump tube connector (5) concrete delivery pump pipe (2) is connected with force feed connecting tube (61), the force feed
The other end of connecting tube (61) is connected with concrete transport device；The pump tube connector (5) is provided with stomata (50) and pressure
Force measuring device (52), stomata (50) place are provided with the embolism (51) for being used for closing or open stomata；During concrete perfusion, pass through bolt
The stomata (50) on (51) closing pump tube connector (5) is filled in, utilizes concrete transport device, force feed connecting tube (61) and concrete
Delivery pump pipe (2) enters concrete press-casting the bottom hole of drilled pile hole body (1)；
When concrete delivery pump pipe (2) buried depth in drilled pile hole body (1) is excessive needs to remove pump line, pump tube connector is opened
(5) embolism at stomata (51), the vacuum state of pump tube connector (5) following concrete delivery pump pipe (2) is released, so as to coagulation
Concrete in native delivery pump pipe (2) declines under Gravitative Loads, finally empties the concrete of pump tube connector (5) lower end, this
When remove in high-order concrete delivery pump pipe (2), and the concrete delivery pump pipe (2) of low level is lifted up；
Then the concrete delivery pump pipe (2) in reconnection pump tube connector (5) and the drilled pile hole body (1) do not removed,
Under pump tube connector (5) stomata opening, the slow delivering concrete of concrete transport device is filled in drilled pile hole body
Emptying section concrete delivery pump pipe (2), and discharged by stomata on pump tube connector (5) in concrete delivery pump pipe (2)
Air, finally with embolism (51) close pump tube connector (5) stomata (50) and continue Pumping concrete.
A kind of 2. construction technology of drape process pouring underwater concrete according to claim 1, it is characterised in that：It is described mixed
The joint for coagulating native delivery pump pipe (2) is provided with protective cover (20).
A kind of 3. construction technology of drape process pouring underwater concrete according to claim 1, it is characterised in that：It is described to pour
Build and support frame (3) is provided with the upside of platform, support frame (3) is provided with the card for fixing the concrete delivery pump pipe (2)
Disk (4).
A kind of 4. construction technology of drape process pouring underwater concrete according to claim 1, it is characterised in that：It is described mixed
It is concrete mixer (6) that solidifying soil pressure, which send device,.
A kind of 5. construction technology of drape process pouring underwater concrete according to claim 1, it is characterised in that：The pressure
Force measuring device (52) measures the pressure of pump tube connector (5) inner concrete, when pressure that device for pressure measurement (52) measures etc.
When setting warning value, device for pressure measurement (52) sends alarm signal, the concrete to concrete transport device
Force feed device is stopped.
A kind of 6. construction technology of drape process pouring underwater concrete according to claim 1, it is characterised in that：Work as coagulation
During the concrete that the concrete gravity insufficient pressure in native delivery pump pipe (2) has irrigated to jack, the concrete transport is utilized
Device increases discharge pressure.
A kind of 7. construction technology of drape process pouring underwater concrete according to claim 1, it is characterised in that：In coagulation
Before soil perfusion i.e. before step S2, the slush pump of plugging into of concrete delivery pump pipe (2) upper end in drilled pile hole body (1) is carried out
Secondary pile hole cleaning.
A kind of 8. construction technology of drape process pouring underwater concrete according to claim 1, it is characterised in that：Work as drilling
When stake holes body (1) is relatively large in diameter, multiply concrete delivery pump pipe (2) arranged side by side is laid in same drilled pile hole body.
A kind of 9. construction technology of drape process pouring underwater concrete according to claim 1, it is characterised in that：Irrigating
During, the top of concrete that the embedment of concrete delivery pump pipe (2) lower end in drilled pile hole body (1) has irrigated should be remained
Below at 2~6 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397028.2A CN106013162B (en) | 2016-06-01 | 2016-06-01 | A kind of construction technology of drape process pouring underwater concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397028.2A CN106013162B (en) | 2016-06-01 | 2016-06-01 | A kind of construction technology of drape process pouring underwater concrete |
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| CN106013162A CN106013162A (en) | 2016-10-12 |
| CN106013162B true CN106013162B (en) | 2018-01-12 |
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| CN201610397028.2A Active CN106013162B (en) | 2016-06-01 | 2016-06-01 | A kind of construction technology of drape process pouring underwater concrete |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106759363B (en) * | 2017-03-02 | 2019-05-28 | 中铁大桥局集团有限公司 | A kind of steel-pipe pile stake base concrete pouring construction device and method |
| CN107515176B (en) * | 2017-08-30 | 2019-07-16 | 中交武汉港湾工程设计研究院有限公司 | Dispersion resistance energy test method under a kind of cement base slurry water |
| CN108560556A (en) * | 2018-05-22 | 2018-09-21 | 北京六建集团有限责任公司 | A kind of deep foundation ditch concrete pumping system and its construction method |
| CN114856199B (en) * | 2022-05-24 | 2023-09-12 | 中海建筑有限公司 | Column core pouring process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129325A (en) * | 1983-12-16 | 1985-07-10 | Yoshikawa Kaiji Kogyo Kk | Method of puring concrete in underwater form |
| CN103940490A (en) * | 2014-04-29 | 2014-07-23 | 江苏城市职业学院 | Device and method for flat membrane pressure transmitter to monitor liquid level of underwater concrete |
| CN104032742B (en) * | 2014-05-16 | 2016-04-06 | 陕西建工机械施工集团有限公司 | A kind of Placement of Underwater Concrete for Casting technique based on DLC four hopper |
| CN104652440B (en) * | 2015-02-16 | 2017-01-25 | 中交一航局第一工程有限公司 | Pressure grouting structure and pressure grouting method |
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Inventor after: Dai Liangjun Inventor after: Cui Linzhao Inventor after: Yang Zonglin Inventor after: Dai Jie Inventor after: Cheng Tao Inventor after: Tao Shuanglong Inventor after: Qin Lin Inventor after: Wang Lei Inventor before: Dai Liangjun Inventor before: Cui Linzhao |
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