CN107476324A - A kind of injecting grout through steel perforated pipe top formula plugging device and its method of work - Google Patents
A kind of injecting grout through steel perforated pipe top formula plugging device and its method of work Download PDFInfo
- Publication number
- CN107476324A CN107476324A CN201710563830.9A CN201710563830A CN107476324A CN 107476324 A CN107476324 A CN 107476324A CN 201710563830 A CN201710563830 A CN 201710563830A CN 107476324 A CN107476324 A CN 107476324A
- Authority
- CN
- China
- Prior art keywords
- power transmission
- transmission shaft
- plugging device
- hole
- perforated pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Abstract
The present invention relates to a kind of injecting grout through steel perforated pipe top formula plugging device, including power transmission shaft, several positioning supporting frames and several closure units, the positioning supporting frame edge and closure unit are along the axial arranged of power transmission shaft.The closure unit includes n unit pedestal being uniformly installed on the same radial circumference face of power transmission shaft, each unit pedestal is pivotally connected a chain bar, the fixed plug-hole bead in top of the chain bar, connected between all chain bars by tensioning apparatus, the unit pedestal has at vertical spacing and oblique spacing place, and the chain bar can only rotate between two spacing places of pivot of unit pedestal.Method of work the invention further relates to above-mentioned injecting grout through steel perforated pipe with top formula plugging device.The structure and method of the present invention realizes the folding mechanism of injected hole, so as to avoid Grouting Pipe jam of grouting pipe caused by returning slurry, return mud etc. after the completion of once grouting, realizes single tube in situ and repeats slip casting stage by stage, improve slip casting operating efficiency.
Description
Technical field
The present invention relates to a kind of injecting grout through steel perforated pipe top formula plugging device and its method of work, belong to building slip casting mending-leakage skill
Art field.
Background technology
It is general that high-pressure slip-casting is carried out using conventional steel floral tube during to ground underground engineering grouting and reinforcing.
After the completion of once grouting, it is often difficult to avoid slurries or stratum media from returning in Grouting Pipe by injected hole, ultimately results in slip casting
Blockage, can only discarded use, follow-up reciprocal slip casting can not be realized.
According to sleeve valve barrel grouting, it can avoid returning slurry using outpacking rubber set, return the appearance of mud.Depthkeeping can be carried out, determined
Amount, fixed degree, determine section, interval and repeat slip casting, at present in the engineerings such as soft soil foundation, tunnel, roadbed and dyke seepage control reinforcing
Have a wide range of applications.
But sleeve valve barrel grouting is used, is considered as whether possessing pore-forming condition first, at present for surface grouting application more
Extensively, it is difficult to apply in the case of plant is difficult to the in the case of of deploying and earth-boring easy collapse hole；Secondly mini-valve tube
Slip casting uses segmenting slip casting, therefore the slip casting of mortar depositing construction is long in time limit, and for efficiency of construction than relatively low, being often difficult to satisfaction construction will
Ask；And sealed not with mini-valve tube side wall in view of during sleeve valve barrel grouting, often there is the rubber gasket in slip casting core pipe
Sternly, slurries are caused to be flowed out by gap.Insoluble contradiction in use always be present：Slurry pressure is too small to be difficult to wash slip casting open
Rubber sleeve outside hole, slurry pressure is excessive, running pulp, card pipe, washing pipe phenomenon is caused, if cleaning slurries are carried out not in time, after hardening
Slip casting core pipe then can not be inserted and cause the discarded of the mini-valve tube, slip casting process and slip casting effect will be had a strong impact on.
In summary, the execution conditions of common sleeve valve barrel grouting require high, do not possess the ability of any angle slip casting, though closely
Someone did some improvement based on this over year, but effect lacks case verification and application is limited.
The content of the invention
The technical problems to be solved by the invention are that providing a kind of injecting grout through steel perforated pipe top opens formula plugging device, being capable of basis
Slip casting needs to control the folding condition of injected hole in steel floral tube, realizes single tube in situ reciprocal slip casting stage by stage.
In order to solve the above problems, the technical solution adopted by the present invention is as follows：
A kind of injecting grout through steel perforated pipe top formula plugging device, it is single that it includes power transmission shaft, several positioning supporting frames and several closure
Member,
The positioning supporting frame is axial arranged along the power transmission shaft, for ensuring power transmission shaft in spray of molten steel in-pipe not
Off-axis,
The closure unit is equidistantly positioned along the axial direction of power transmission shaft, and it includes uniformly being installed in the same radial direction circle of power transmission shaft
N unit pedestal on side face, each unit pedestal are pivotally connected a chain bar, and the fixed plug-hole bead in top of the chain bar is described stifled
The position of hole bead is corresponding with injected hole, is connected between all chain bars by tensioning apparatus, and the unit pedestal has vertical
Spacing place and oblique spacing place, the chain bar can only rotate around the pivot of unit pedestal between two spacing places, when chain bar connects
When touching oblique spacing place, all chain bars are in minimum of contraction state；When at chain bar contact vertical spacing, all chain bars are in most
Big expansion state, under maximum extension state, the plug-hole bead is located in injected hole.
In said structure, each radially side face arranges n chain bar, the top peace of chain bar to closure unit on power transmission shaft
Plug-hole bead is filled, the position of plug-hole bead is corresponding with injected hole.When said mechanism is placed in steel floral tube, when once grouting terminates
Afterwards, during ejection power transmission shaft, plug-hole bead moves ahead along tube wall, then blocked by the fixed locating fastener of inside pipe wall it is spacing, further
Promote power transmission shaft, chain bar turns to vertical position and contacts at vertical spacing, now, plug-hole bead enter in injected hole and by its
Closure；Before secondary grouting, during pumpback power transmission shaft, plug-hole bead departs from injected hole, and under the constraint of tensioning apparatus, chain bar rotates
To oblique and when contacting oblique spacing place, chain bar into contraction state, realizes the opening of injected hole relative to power transmission shaft.That is,
Said structure has the locomotory mechanism of " top, block, open, be stifled ", and " top " refers to the ejection of power transmission shaft, and " card " refers to plug-hole bead in inside pipe wall
Buckle screens is positioned, " opening " refers to the expansion or contraction of all chain bars, and " stifled " refers to that plug-hole bead blocks injected hole.Positioning branch
Support can ensure that power transmission shaft overlaps all the time in spray of molten steel in-pipe with Grouting Pipe axis.
As a further improvement, the unit pedestal is shaped as L-shaped, by base level portion and pedestal vertical portion group
Into, the chain bar bottom has a groove, and the groove is articulated in the base level portion, between groove top surface and pivot away from
From less than the fore-and-aft distance at the top of pedestal vertical portion between pivot, again smaller than pivot and the horizontal range of base level portion side.
Due to the structure of unit pedestal, chain bar is set further to be rotated by limitation in vertical and oblique two places.
Further, the tensioning apparatus is rubber strip, and the upper end of the chain bar offers the through hole parallel to pivot axial direction,
The rubber strip connects as one all chain bars through the through hole.Under rubber strip effect, chain bar is intended to power transmission shaft side
To contraction.
As preferable scheme, the positioning supporting frame is by being connected to four support bar groups of power transmission shaft into four support
Angle between bar is 90 °.
Further, the positioning supporting frame and the interspersed interval setting of closure unit.
Preferably, the positioning supporting frame is 30cm with blocking the distance between unit.
According to the quantity of injected hole, the quantity of unit pedestal is 4 on the same radial circumference face of power transmission shaft.
Further, in order to close with injected hole fitting in plug-hole, the occurrence of reducing spillage, the plug-hole bead by
Steel ball and the rubber being wrapped in outside steel ball are made.
Method of work the invention further relates to above-mentioned injecting grout through steel perforated pipe with top formula plugging device, comprises the following steps：
S1, injecting grout through steel perforated pipe is opened into formula plugging device in Grouting Pipe with top and debugged；
S2, before preparing slip casting, pull power transmission shaft, allow plug-hole bead to depart from injected hole, realize the open mode of injected hole；
S3, after Grouting Pipe slip casting terminates, pushing tow power transmission shaft, allow plug-hole bead along tube wall move ahead enter injected hole in and will
It is blocked；
S4, reciprocal slip casting is such as needed, then circulation step S2 and S3, realize reciprocal slip casting work.
Compared with prior art, the beneficial effects of the present invention are：
1st, injecting grout through steel perforated pipe of the invention realizes the folding mechanism of injected hole with top formula plugging device, so as to avoid routine
Grouting Pipe jam of grouting pipe caused by returning slurry, return mud etc. after the completion of once grouting.
2nd, the purpose that single tube in situ repeats slip casting stage by stage is realized.
3rd, injecting grout through steel perforated pipe of the invention is ingenious in design with top formula plugging device, and sealing characteristics is good；Its method of work operates
Convenient, operating efficiency is improved significantly.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the present invention.Chain bar is in maximum extension state in figure.
Fig. 2 is that chain bar is in the schematic diagram of minimum of contraction state in one embodiment of the present invention.
Fig. 3 is the position relationship schematic diagram of chain bar, plug-hole bead and tensioning apparatus in one embodiment of the present invention.
Fig. 4 is in one embodiment of the present invention, and positioning supporting frame, chain bar, the position of plug-hole bead and tensioning apparatus are closed
It is schematic diagram.
Fig. 5 is schematic diagram when at chain bar osculating element pedestal vertical spacing in one embodiment of the present invention.
Fig. 6 is Fig. 5 side schematic view.
Fig. 7 is in one embodiment of the present invention, schematic diagram during the oblique spacing place of chain bar osculating element pedestal.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.According to following explanation, sheet
The purpose, technical scheme and advantage of invention will be apparent from.It should be noted that described embodiment is the preferred of the present invention
Embodiment, rather than whole embodiments.
With reference to shown in Fig. 1 and Fig. 2, a kind of injecting grout through steel perforated pipe top formula plugging device, it includes power transmission shaft 1, several positioning
Support frame 2 and several closure units 3, the positioning supporting frame are with the interspersed interval setting of closure unit, preferable spacing distance
30cm。
The positioning supporting frame is axial arranged along the power transmission shaft, for ensuring power transmission shaft in spray of molten steel in-pipe not
Off-axis.With reference to Fig. 4, preferably, the positioning supporting frame is made up of four support bar 2a for being connected to power transmission shaft, four
Angle between support bar is 90 °.
The closure unit is equidistantly positioned along the axial direction of power transmission shaft, and it includes uniformly being installed in the same radial direction circle of power transmission shaft
N unit pedestal 3a on side face, the quantity of unit pedestal is according to the number of the injected hole in Grouting Pipe on same radial circumference face
Amount is consistent.Preferably, according to conventional Grouting Pipe, the quantity of unit pedestal is 4 on the same radial circumference face of power transmission shaft
It is individual.Each unit pedestal is pivotally connected a chain bar 3b, the fixed plug-hole bead 3c in top of the chain bar, the position of the plug-hole bead with
Injected hole is corresponding.The plug-hole bead is preferably made up of steel ball and the rubber being wrapped in outside steel ball.In fig. 1 and 2, it is adjacent
The chain bar of two groups of closure units mutually staggers certain angle, such as, what 4 beads at the top of the chain bar of one group of closure unit were formed
Square as shown in figure 3, adjacent another group of closure unit 4 beads form square just as shown in figure 4, two groups of closure lists
The bead of member staggers 45 °, and this is that the angle to stagger is because of steel in order to meet the requirement corresponding with the position of injected hole of plug-hole bead
Depending on the angle to stagger in floral tube between two adjacent groups injected hole.
From figs. 3 and 4 it can be seen that connected between all chain bars by tensioning apparatus 3d.The unit pedestal has such as
A and oblique spacing place B as shown in Figure 7, the chain bar can only exist around the pivot 3e of unit pedestal at vertical spacing shown in Fig. 5
Rotated at vertical spacing between oblique spacing place.When chain bar contacts oblique spacing place, all chain bars are in minimum of contraction shape
State；When at chain bar contact vertical spacing, all chain bars are in maximum extension state, under maximum extension state, the plug-hole
Bead is located in injected hole.
Preferably, the L-shaped being shaped as shown in Fig. 5 of the unit pedestal, vertical by base level portion 3a-1 and pedestal
Portion 3a-2 is formed, as shown in fig. 6, the chain bar bottom has a groove 3b-1, the groove is articulated in the base level portion
On, the distance between groove top surface and pivot is less than the fore-and-aft distance at the top of pedestal vertical portion between pivot, again smaller than pivot and base
The horizontal range of seat horizontal part side.
The tensioning apparatus is preferably rubber strip, as shown in figure 5, the upper end of the chain bar is offered parallel to pivot axial direction
Through hole 3b-2, the rubber strip connects as one all chain bars through the through hole.
Injecting grout through steel perforated pipe of the present invention top formula plugging device, each blocks unit radially side face on power transmission shaft
N chain bar is arranged, plug-hole bead is installed at the top of chain bar, and the position of plug-hole bead is corresponding with injected hole.Work as said mechanism
It is placed in steel floral tube, after once grouting terminates, during ejection power transmission shaft, plug-hole bead moves ahead along tube wall, is then consolidated by inside pipe wall
If locating fastener block spacing, further promote power transmission shaft, chain bar turns to vertical position and contacted at vertical spacing, this
When, plug-hole bead enters in injected hole and blocked；Before secondary grouting, during pumpback power transmission shaft, plug-hole bead departs from slip casting
Hole, under the constraint of tensioning apparatus, chain bar turns to oblique and when contacting oblique spacing place, and chain bar is relative to power transmission shaft into contraction-like
State, realize the opening of injected hole.That is, said structure has the locomotory mechanism of " top, block, open, be stifled ", " top " refers to power transmission shaft
Ejection, " card " refers to plug-hole bead and is positioned buckle screens in inside pipe wall, and " opening " refers to the expansion or contraction of all chain bars, and " stifled " is
Refer to plug-hole bead to block injected hole.Positioning supporting frame can ensure that power transmission shaft in spray of molten steel in-pipe with Grouting Pipe axis all the time
Overlap.
The above-mentioned injecting grout through steel perforated pipe method of work of top formula plugging device, comprises the following steps：
S1, injecting grout through steel perforated pipe is opened into formula plugging device in Grouting Pipe with top and debugged；
S2, before preparing slip casting, pull power transmission shaft, allow plug-hole bead to depart from injected hole, realize the open mode of injected hole；
S3, after Grouting Pipe slip casting terminates, pushing tow power transmission shaft, allow plug-hole bead along tube wall move ahead enter injected hole in and will
It is blocked；
S4, reciprocal slip casting is such as needed, then circulation step S2 and S3, realize reciprocal slip casting work
It is described above, only it is the description explanation of the preferred embodiment of the present invention, not limiting the scope of the present invention, shows
So, any those skilled in the art are based on above-described embodiment, can readily occur in replacement or change to obtain other implementations
Example, these all should be included within the scope of the present invention.
Claims (9)
- A kind of 1. injecting grout through steel perforated pipe top formula plugging device, it is characterised in that：It includes power transmission shaft (1), several positioning supporting frames (2) and it is several closure unit (3),The positioning supporting frame is axial arranged along the power transmission shaft, for ensure power transmission shaft in spray of molten steel in-pipe without departing from Axis,The closure unit is equidistantly positioned along the axial direction of power transmission shaft, and it includes uniformly being installed in the same radial circumference face of power transmission shaft On n unit pedestal (3a), each unit pedestal is pivotally connected a chain bar (3b), the fixed plug-hole bead in top of the chain bar (3c), the position of the plug-hole bead is corresponding with injected hole, is connected between all chain bars by tensioning apparatus (3d), the list First pedestal has at vertical spacing (A) and oblique spacing place (B), the chain bar can only around unit pedestal pivot (3e) at two Rotated between spacing place, when chain bar contacts oblique spacing place, all chain bars are in minimum of contraction state；When chain bar contact is vertical During spacing place, all chain bars are in maximum extension state, and under maximum extension state, the plug-hole bead is located in injected hole.
- 2. injecting grout through steel perforated pipe according to claim 1 top formula plugging device, it is characterised in that：The unit pedestal is shaped as L-shaped, is made up of base level portion (3a-1) and pedestal vertical portion (3a-2), the chain bar Bottom has a groove (3b-1), and the groove is articulated in the base level portion, and the distance between groove top surface and pivot is small Fore-and-aft distance at the top of pedestal vertical portion between pivot, again smaller than pivot and the horizontal range of base level portion side.
- 3. injecting grout through steel perforated pipe according to claim 1 top formula plugging device, it is characterised in that：The tensioning apparatus is rubber strip, and the upper end of the chain bar offers the through hole (3b-2) parallel to pivot axial direction, described Rubber strip connects as one all chain bars through the through hole.
- 4. injecting grout through steel perforated pipe according to claim 1 top formula plugging device, it is characterised in that：The positioning supporting frame is made up of four support bars (2a) for being connected to power transmission shaft, and the angle between four support bars is 90 °.
- 5. injecting grout through steel perforated pipe according to claim 1 top formula plugging device, it is characterised in that：The positioning supporting frame and the interspersed interval setting of closure unit.
- 6. injecting grout through steel perforated pipe according to claim 5 top formula plugging device, it is characterised in that：The positioning supporting frame is 30cm with blocking the distance between unit.
- 7. injecting grout through steel perforated pipe according to claim 1 top formula plugging device, it is characterised in that：The quantity of unit pedestal is 4 on the same radial circumference face of power transmission shaft.
- 8. injecting grout through steel perforated pipe according to claim 1 top formula plugging device, it is characterised in that：The plug-hole bead is made up of steel ball and the rubber being wrapped in outside steel ball.
- 9. the method for work of the injecting grout through steel perforated pipe top formula plugging device as described in claim 1 to 8 any claim, it is special Sign is, comprises the following steps：S1, injecting grout through steel perforated pipe is opened into formula plugging device in Grouting Pipe with top and debugged；S2, before preparing slip casting, pull power transmission shaft, allow plug-hole bead to depart from injected hole, realize the open mode of injected hole；S3, after Grouting Pipe slip casting terminates, pushing tow power transmission shaft, allow plug-hole bead to be moved ahead along tube wall and enter in injected hole and by its envelope It is stifled；S4, reciprocal slip casting is such as needed, then circulation step S2 and S3, realize reciprocal slip casting work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563830.9A CN107476324A (en) | 2017-07-12 | 2017-07-12 | A kind of injecting grout through steel perforated pipe top formula plugging device and its method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563830.9A CN107476324A (en) | 2017-07-12 | 2017-07-12 | A kind of injecting grout through steel perforated pipe top formula plugging device and its method of work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107476324A true CN107476324A (en) | 2017-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710563830.9A Pending CN107476324A (en) | 2017-07-12 | 2017-07-12 | A kind of injecting grout through steel perforated pipe top formula plugging device and its method of work |
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| CN (1) | CN107476324A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001040980A (en) * | 1999-07-23 | 2001-02-13 | Dae Won Soil Co Ltd | Multistage grouting device and method therefor |
| CN105002904A (en) * | 2015-05-28 | 2015-10-28 | 浙江中林勘察研究股份有限公司 | Installation and construction method for anti-floating anchor rod of end expanding type |
| CN106703038A (en) * | 2016-11-30 | 2017-05-24 | 上海建工集团股份有限公司 | Mechanical check horizontal reciprocating grouting pipe and construction method thereof |
-
2017
- 2017-07-12 CN CN201710563830.9A patent/CN107476324A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001040980A (en) * | 1999-07-23 | 2001-02-13 | Dae Won Soil Co Ltd | Multistage grouting device and method therefor |
| CN105002904A (en) * | 2015-05-28 | 2015-10-28 | 浙江中林勘察研究股份有限公司 | Installation and construction method for anti-floating anchor rod of end expanding type |
| CN106703038A (en) * | 2016-11-30 | 2017-05-24 | 上海建工集团股份有限公司 | Mechanical check horizontal reciprocating grouting pipe and construction method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171215 |
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