CN206646495U - Biliquid deep hole bottom fixed point precisely mixes slip casting structure - Google Patents
Biliquid deep hole bottom fixed point precisely mixes slip casting structure Download PDFInfo
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- CN206646495U CN206646495U CN201720235654.1U CN201720235654U CN206646495U CN 206646495 U CN206646495 U CN 206646495U CN 201720235654 U CN201720235654 U CN 201720235654U CN 206646495 U CN206646495 U CN 206646495U
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- grouting
- pipe
- biliquid
- steel sleeve
- slip casting
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Abstract
The utility model discloses a kind of biliquid deep hole bottom to pinpoint precisely mixing slip casting structure, and it solves the accurate mixed problem of two fluid grouting, can control setting time by the proportioning of the quantitative regulation biliquid of double high pressure PVC Grouting Pipes；Mixing of the dual slurry in the bottom hole predetermined area is realized, makes two fluid grouting scope manual control；Mixing distance and time of the biliquid in drilling can be reduced by pinpointing accurate two fluid grouting, increase the range of scatter of dual slurry；It is simple to operate.Its technical scheme is：Including steel sleeve, two Grouting Pipes are set in the steel sleeve, wherein being connected at the top of a Grouting Pipe with the first rodding, are connected at the top of another Grouting Pipe with the second rodding；Grouting Pipe bottom outside cornice has stop grouting plug, and the stop grouting plug top is filled out between Grouting Pipe and steel sleeve sets occluding body.
Description
Technical field
Slurry injection technique field is the utility model is related to, precisely mixing slip casting is pinpointed more particularly to a kind of biliquid deep hole bottom
Structure.
Background technology
Bi-slurry grouting method can make cement grout rapid condensation, reach sealing leak stopping or improve the effect of stratum bearing capacity,
The method has become the indispensable construction method of stopping up water work and has been widely utilized.
At present, traditional two fluid grouting method has aperture biliquid mixing and bottom hole biliquid to mix two kinds of construction technologies.For hole
Mouth biliquid hybrid technique, dual slurry mixes in aperture and reaches bottom hole through high pressure pvc pipe again, due to cement during biliquid is conveyed
The limitation in slurry presetting period easily solidifies in high pressure PVC Grouting Pipes, hinders slip casting process, limits its sphere of action and drop
Low water plugging effect.For bottom hole biliquid hybrid technique, cement mortar is injected by aperture, waterglass liquid is injected by ttom of pipe, can not
Realize the fixed point precise proportions mixing of biliquid.
In summary, effective solution is still lacked for the accurate mixed problem of two fluid grouting in the prior art.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of biliquid deep hole bottom fixed point precisely mixing
Slip casting structure, dual slurry can be achieved in the mixing of the bottom hole predetermined area, make two fluid grouting scope manual control.
To achieve the above object, the utility model uses following technical proposals：
Biliquid deep hole bottom fixed point precisely mixing slip casting structure, including steel sleeve, the steel sleeve is interior to set two slip castings
Pipe, wherein being connected at the top of a Grouting Pipe with the first rodding, it is connected at the top of another Grouting Pipe with the second rodding；Slip casting bottom of the tube
Lateral wall carries stop grouting plug, and the stop grouting plug top is filled out between Grouting Pipe and steel sleeve sets occluding body.Using the slip casting structure,
Configure two Grouting Pipes to bottom hole, two kinds of slurries to be injected by two Grouting Pipes respectively, two slurries are mixed after ttom of pipe is delivered to
Close, realize the accurate mixing of biliquid bottom hole fixed point, mixing distance and time of the biliquid in drilling can be reduced, increase the expansion of dual slurry
Dissipate scope.
Sleeve pipe cap nut is provided with the top of the steel sleeve, the Grouting Pipe passes through sleeve pipe cap nut.Sleeve pipe cap nut is completed
The connection of steel sleeve and Grouting Pipe, make Grouting Pipe reliable location.
The occluding body is the envelope block formed by dual slurry.It will be blocked, made between Grouting Pipe and the wall of a borehole by dual slurry
Obtain and closely knit confined pressure section is formed outside Grouting Pipe, increase Grouting Pipe bearing capacity.
At the top of the envelope block and steel sleeve top flush.Make the setting of envelope block, both can be by between steel sleeve and the wall of a borehole
Reliable closure, the normal work of steel sleeve is not interfered with also.
Biliquid deep hole bottom pinpoints accurate mixed construction technique, comprises the following steps：
Step 1：Drilling is transferred at steel sleeve to intact rock to intact rock depth in drilling；
Step 2：Use dual slurry by sealing between steel bushing pipe outer wall and the wall of a borehole with stationary steel bushing pipe；
Step 3：Continue drilling to slip casting depth is intended, two Grouting Pipes are transferred into drilling；
Step 4：It will be blocked between Grouting Pipe and the wall of a borehole, make to form closely knit confined pressure section outside Grouting Pipe.
Construction technology of the present utility model is improved in conventional hybrid method, after drill hole of drilling machine to desired depth,
Two Grouting Pipes are transferred to bottom hole, biliquid is delivered to ttom of pipe by Grouting Pipe respectively and mixed in ttom of pipe, it is possible to achieve biliquid hole
The accurate mixing of bottom fixed point, mixing distance and time of the biliquid in drilling can be reduced, increase the range of scatter of dual slurry.
In the step 1,130mm is more than or equal to by surface vertical borehole, bore diameter with rig.Drill above-mentioned size
Hole, ensure the normal decentralization of steel sleeve；Specific bore size can be depending on the size of steel sleeve.
Further, in the step 1, in boring procedure, drilling yardstick and spilling water situation should be observed.Observation drilling chi
Degree, to avoid the run-off the straight that drills, and ensure drilling to setting position；Spilling water situation is observed, to there is the burst such as spilling water
, can be with timely processing during situation.
In the step 3, the steel sleeve mouth of pipe sets sleeve pipe cap nut, sleeve pipe cap nut connection steel sleeve and Grouting Pipe.If
Put sleeve pipe cap nut, it is ensured that steel sleeve and Grouting Pipe are reliably connected.
In the step 3, drilling takes out debris in drilling to after intending slip casting depth.Debris is avoided to slip casting result
Influence.
Further, in the step 3, stop grouting plug is set on Grouting Pipe bottom outside wall.
In the step 3, it will be connected at the top of a wherein Grouting Pipe with the first rodding, by another Grouting Pipe top and second
Rodding connects.
In the step 4, between Grouting Pipe ttom of pipe lateral wall and the wall of a borehole, filled out and set to hell by stop grouting plug top
Dual slurry, complete closure.It will be blocked using dual slurry between Grouting Pipe and the wall of a borehole, can to form closely knit enclose outside Grouting Pipe
Section is pressed, increases Grouting Pipe bearing capacity.
Compared with prior art, the beneficial effects of the utility model are：
In the utility model, transferred and drilled using double Grouting Pipes, carried out two fluid grouting, double high pressure PVC slip castings can be passed through
The proportioning of quantitative regulation biliquid is managed, controls setting time.
In the utility model, transferred and drilled using double Grouting Pipes, carry out two fluid grouting, dual slurry can be achieved and make a reservation in bottom hole
The mixing in place, make two fluid grouting scope manual control.
In the utility model, mixing distance and time of the biliquid in drilling, increase can be reduced by pinpointing accurate two fluid grouting
The range of scatter of dual slurry；And operation is simple.
Blocked between Grouting Pipe and the wall of a borehole, can make to form closely knit confined pressure section outside Grouting Pipe, increase Grouting Pipe
Bearing capacity.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is the utility model slip casting structural representation；
In figure, 1 cement grout, 2 rapid hardening slurries, 3 cement grout roddings, 4 rapid hardening slurry conduit roads, 5 Grouting Pipes, 6 steel
Sleeve pipe, 7 sleeve pipe cap nuts, 8 stop grouting plugs, 9 occluding bodies, 10 basement rock.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the problem of can not precisely mixing of two fluid grouting in the prior art be present, in order to
Solves technical problem as above, present applicant proposes a kind of biliquid deep hole bottom to pinpoint accurate mixed construction technique and slip casting knot
Structure.
In a kind of typical embodiment of the application, as shown in Figure 1, there is provided a kind of biliquid deep hole bottom fixed point is accurate
Slip casting structure is mixed, slip casting structure includes cement grout rodding 3 (i.e. the first rodding), rapid hardening slurry conduit road 4 (i.e. second
Rodding), Grouting Pipe 5, steel sleeve 6, sleeve pipe cap nut 7, stop grouting plug 8, Grouting Pipe 5 use high pressure PVC Grouting Pipes, steel sleeve 6
Two Grouting Pipes 5 of interior setting, wherein the top of a Grouting Pipe 5 is connected with cement grout rodding 3, another top of Grouting Pipe 5 and speed
Solidifying slurry conduit road 4 connects；Using the slip casting structure, two Grouting Pipes of configuration are to bottom hole, and two kinds of slurries are respectively by two slip castings
Pipe is injected, and two slurries are mixed after ttom of pipe is delivered to, and is realized the accurate mixing of biliquid bottom hole fixed point, can be reduced biliquid and drill
Interior mixing distance and time, increase the range of scatter of dual slurry.
The top of steel sleeve 6 is provided with sleeve pipe cap nut 7, and Grouting Pipe 5 passes through sleeve pipe cap nut 7.Steel sleeve 6 invests the wall of a borehole simultaneously
By the solid sleeve outer wall of biliquid slurry seal and hole wall gap, sleeve pipe cap nut 7 is above steel sleeve 6.Sleeve pipe cap nut completes steel sleeve
With the connection of Grouting Pipe, make Grouting Pipe reliable location.
The bottom outside cornice of Grouting Pipe 5 has stop grouting plug 8, and the top of stop grouting plug 8 is filled out between Grouting Pipe 5 and steel sleeve 6 sets envelope
Stifled body 9.Stop grouting plug 8 is in plane；It is reliable only to starch, prevent slurries from fleeing hither and thither.
Occluding body 9 is the envelope block that is formed by dual slurry, i.e., in steel sleeve 6 mouth of pipe of Grouting Pipe 5 to the bottom of Grouting Pipe 5 by double
Slurry blocks.It will be blocked by dual slurry between Grouting Pipe and the wall of a borehole so that closely knit confined pressure section, increase note are formed outside Grouting Pipe
Starch pipe bearing capacity.
Seal block top and the top flush of steel sleeve 6.Make the setting of envelope block, both can will be reliable between steel sleeve and the wall of a borehole
Closure, the normal work of steel sleeve is not interfered with also.
In the utility model, slip casting biliquid is cement grout 1, waterglass slurries or other rapid hardening slurries 2.Cement grout 1
Be injected into ttom of pipe exact position via Grouting Pipe 5 along cement grout rodding 3, rapid hardening slurries 2 along rapid hardening slurry conduit road 4 via
Grouting Pipe 5 is injected into ttom of pipe exact position.
In the typical embodiment of another kind of the application, there is provided a kind of biliquid deep hole bottom pinpoints accurate mixed construction
Technique, construction procedure are as follows：
1 drilling：Using rig by surface vertical borehole, drill to intact rock depth, bore diameter in 130mm or so or
More than, other situations of close observation drilling yardstick and spilling water etc. in boring procedure.
2 setting of casings：Steel sleeve, steel sleeve depth to intact rock section are transferred after the completion of drilling, the steel sleeve mouth of pipe sets set
Pipe cap nut, sleeve pipe cap nut connection steel sleeve and Grouting Pipe.
3 big envelope pipes：Using dual slurry sealing steel bushing pipe outer wall with stationary steel bushing pipe.
4 continue to creep into：Continue drilling to plan slip casting depth, and ensure the interior no-sundries that drill.
5 times Grouting Pipes：After drilling to desired depth, two Grouting Pipes are transferred, sets on Grouting Pipe bottom outside wall and only starches
Plug.One Grouting Pipe top is connected with cement mortar rodding 3, and another Grouting Pipe top is connected with rapid hardening slurry conduit road 4.
6 filling boreholes：With the slip casting mouth of pipe in dual slurry closure drilling to ttom of pipe section, so as to form closely knit confined pressure outside Grouting Pipe
Section, increase Grouting Pipe bearing capacity.
Construction technology of the present utility model is improved in conventional hybrid method, after drill hole of drilling machine to desired depth,
Two Grouting Pipes are transferred to bottom hole, biliquid is delivered to ttom of pipe by Grouting Pipe respectively and mixed in ttom of pipe, it is possible to achieve biliquid hole
The accurate mixing of bottom fixed point, mixing distance and time of the biliquid in drilling can be reduced, increase the range of scatter of dual slurry.
In order that the technical scheme of the application can clearly be understood by obtaining those skilled in the art, below with reference to tool
The embodiment of body describes the technical scheme of the application in detail.
Specifically work progress is：
Using rig from surface vertical borehole, drill to the depth of steel sleeve 6, bore diameter is in 130mm or so or more.
Lower steel sleeve 6 is to intact rock after the completion of drilling, to prevent borehole collapse and ensure top slip casting pressure-bearing.
Using biliquid sealing steel sleeve outer wall, continue drilling to plan slip casting depth.
After drilling to desired depth, it is ensured that in drilling after no-sundries, lower two Grouting Pipes 5, Grouting Pipe band stop grouting plug 8, only
Slurry plug 8 is in plane.
Top is respectively connecting to two Grouting Pipes 5 by cement grout pipeline 3 and rapid hardening slurry pipe line 4, is blocked with dual slurry 9
The slip casting mouth of pipe is to ttom of pipe section in steel sleeve, so as to form closely knit confined pressure section outside PVC Grouting Pipes, increases PVC Grouting Pipe bearing capacities.
It can utilize two Grouting Pipes that dual slurry is injected into after predetermined bottom hole position mixes again to target rock with precise proportions slip casting
Spread on layer/stratum.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (5)
1. biliquid deep hole bottom fixed point precisely mixes slip casting structure, it is characterized in that, including steel sleeve, the steel sleeve is interior to set two
Root Grouting Pipe, wherein being connected at the top of a Grouting Pipe with the first rodding, it is connected at the top of another Grouting Pipe with the second rodding；Slip casting
Bottom of the tube lateral wall carries stop grouting plug, and the stop grouting plug top is filled out between Grouting Pipe and steel sleeve sets occluding body.
2. slip casting structure as claimed in claim 1, it is characterized in that, it is provided with sleeve pipe cap nut at the top of the steel sleeve.
3. slip casting structure as claimed in claim 2, it is characterized in that, the Grouting Pipe passes through sleeve pipe cap nut, sleeve pipe cap nut
Connect steel sleeve and Grouting Pipe.
4. slip casting structure as claimed in claim 1, it is characterized in that, the occluding body is the envelope block formed by dual slurry.
5. slip casting structure as claimed in claim 4, it is characterized in that, at the top of the envelope block and steel sleeve top flush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720235654.1U CN206646495U (en) | 2017-03-10 | 2017-03-10 | Biliquid deep hole bottom fixed point precisely mixes slip casting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720235654.1U CN206646495U (en) | 2017-03-10 | 2017-03-10 | Biliquid deep hole bottom fixed point precisely mixes slip casting structure |
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| Publication Number | Publication Date |
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| CN206646495U true CN206646495U (en) | 2017-11-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894414A (en) * | 2017-03-10 | 2017-06-27 | 山东大学 | Biliquid deep hole bottom pinpoints accurate mixed construction technique and slip casting structure |
| CN109457703A (en) * | 2018-12-12 | 2019-03-12 | 宁波市轨道交通集团有限公司 | A kind of mini-valve tube and grouting method of the design of two fluid grouting core pipe |
-
2017
- 2017-03-10 CN CN201720235654.1U patent/CN206646495U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894414A (en) * | 2017-03-10 | 2017-06-27 | 山东大学 | Biliquid deep hole bottom pinpoints accurate mixed construction technique and slip casting structure |
| CN106894414B (en) * | 2017-03-10 | 2023-11-03 | 山东大学 | Double-liquid deep hole bottom fixed-point precise mixed construction process and grouting structure |
| CN109457703A (en) * | 2018-12-12 | 2019-03-12 | 宁波市轨道交通集团有限公司 | A kind of mini-valve tube and grouting method of the design of two fluid grouting core pipe |
| CN109457703B (en) * | 2018-12-12 | 2023-09-19 | 宁波市轨道交通集团有限公司 | Sleeve valve pipe with double-liquid grouting core pipe design and grouting method |
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