CN106894414A - Biliquid deep hole bottom pinpoints accurate mixed construction technique and slip casting structure - Google Patents
Biliquid deep hole bottom pinpoints accurate mixed construction technique and slip casting structure Download PDFInfo
- Publication number
- CN106894414A CN106894414A CN201710141370.0A CN201710141370A CN106894414A CN 106894414 A CN106894414 A CN 106894414A CN 201710141370 A CN201710141370 A CN 201710141370A CN 106894414 A CN106894414 A CN 106894414A
- Authority
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- China
- Prior art keywords
- pipe
- grouting
- drilling
- slip casting
- biliquid
- 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.)
- Granted
Links
- 238000007569 slipcasting Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 239000002002 slurry Substances 0.000 claims abstract description 48
- 238000005553 drilling Methods 0.000 claims abstract description 34
- 230000009977 dual effect Effects 0.000 claims abstract description 25
- 239000011435 rock Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 11
- 239000004568 cement Substances 0.000 description 9
- 239000011440 grout Substances 0.000 description 8
- 239000011083 cement mortar Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010237 hybrid technique Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
-
- 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
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/0023—Slurry
Abstract
Accurate mixed construction technique and slip casting structure are pinpointed the invention discloses a kind of biliquid deep hole bottom, it solves the accurate mixed problem of two fluid grouting, setting time can be controlled 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；Pinpointing accurate two fluid grouting can reduce mixing distance and time of the biliquid in drilling, increase the range of scatter of dual slurry；It is simple to operate.Its technical scheme is：Comprise the following steps：Drilling is transferred at steel sleeve to intact rock to intact rock depth in drilling；Using dual slurry by sealing between steel bushing pipe outer wall and the wall of a borehole；Continue to drill to slip casting depth is intended, to two Grouting Pipes of decentralization in drilling；To be blocked between Grouting Pipe and the wall of a borehole, make to form closely knit confined pressure section outside Grouting Pipe.
Description
Technical field
The present invention relates to slurry injection technique field, more particularly to a kind of biliquid deep hole bottom pinpoints accurate mixed construction technique
And slip casting 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 again through high pressure pvc pipe arrival bottom hole, due to cement during biliquid is conveyed in aperture
The limitation for starching the 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, it is impossible to
Realize the fixed point precise proportions mixing of biliquid.
In sum, effective solution is still lacked for the accurate mixed problem of two fluid grouting in the prior art.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of biliquid deep hole bottom and pinpoints accurate mixed construction
Technique, is capable of achieving dual slurry in the mixing of the bottom hole predetermined area, makes two fluid grouting scope manual control.
To achieve the above object, the present invention uses following technical proposals：
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 to drill to slip casting depth is intended, to two Grouting Pipes of decentralization in drilling；
Step 4：To 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 invention is improved in conventional hybrid method, after drill hole of drilling machine to desired depth, decentralization
Biliquid is delivered to ttom of pipe and mixed in ttom of pipe, it is possible to achieve biliquid bottom hole is determined by two Grouting Pipes by Grouting Pipe respectively to bottom hole
The accurate mixing of point, can reduce mixing distance and time of the biliquid in drilling, increase the range of scatter of dual slurry.
In the step 1, with rig by surface vertical borehole, bore diameter is more than or equal to 130mm.Drill above-mentioned size
Hole, it is ensured that the normal decentralization of steel sleeve；Depending on specific bore size can be according to 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 ensures drilling to setting position；Observation spilling water situation, to there is the burst such as spilling water
During situation, can process in time.
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 are 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, wherein Grouting Pipe top is connected with the first rodding, by another Grouting Pipe top and second
Rodding is connected.
In the step 4, between Grouting Pipe ttom of pipe lateral wall and the wall of a borehole, filled out to hell by stop grouting plug top and set
Dual slurry, completes closure.To be blocked between Grouting Pipe and the wall of a borehole using dual slurry, can cause to form closely knit enclosing outside Grouting Pipe
Pressure section, increases Grouting Pipe bearing capacity.
Biliquid deep hole bottom fixed point precisely mixes slip casting structure, including steel sleeve, and two slip castings are set in the steel sleeve
Pipe, wherein Grouting Pipe top is connected with the first rodding, another Grouting Pipe top is connected 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 and sets occluding body.Using the slip casting structure,
To bottom hole, two kinds of slurries are injected two Grouting Pipes of configuration by two Grouting Pipes respectively, and 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.
The steel sleeve top is provided with sleeve pipe cap nut, and the Grouting Pipe passes through sleeve pipe cap nut.Sleeve pipe cap nut is completed
The connection of steel sleeve and Grouting Pipe, makes Grouting Pipe reliable location.
The occluding body is the envelope block formed by dual slurry.To be blocked between Grouting Pipe and the wall of a borehole by dual slurry, made
Obtain and closely knit confined pressure section is formed outside Grouting Pipe, increase Grouting Pipe bearing capacity.
The envelope block top 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.
Compared with prior art, the beneficial effects of the invention are as follows：
In the present invention, transferred using double Grouting Pipes and drilled, carry out two fluid grouting, can be fixed by double high pressure PVC Grouting Pipes
The proportioning of the regulation biliquid of amount, controls setting time.
In the present invention, transferred using double Grouting Pipes and drilled, carry out two fluid grouting, be capable of achieving dual slurry in the bottom hole predetermined area
Mixing, make two fluid grouting scope manual control.
In construction method of the invention, pinpointing accurate two fluid grouting can reduce mixing distance of the biliquid in drilling in time
Between, increase 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, increased Grouting Pipe
Bearing capacity.
Brief description of the drawings
The Figure of description for constituting 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 illustrated for explaining the application, does not constitute the improper restriction to the application.
Fig. 1 is slip casting structural representation of the present invention；
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.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.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 specific 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
Be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, there is a problem of can not precisely mixing for two fluid grouting in the prior art, in order to
Technical problem as above is solved, accurate mixed construction technique and slip casting knot are pinpointed present applicant proposes a kind of biliquid deep hole bottom
Structure.
In a kind of typical implementation method of the application, as shown in Figure 1, there is provided a kind of biliquid deep hole bottom fixed point is accurate
Mixing slip casting structure, 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, with speed at the top of another Grouting Pipe 5
Solidifying slurry conduit road 4 connects；Using the slip casting structure, to bottom hole, two kinds of slurries are respectively by two slip castings for two Grouting Pipes of configuration
Pipe is injected, and two slurries are mixed after ttom of pipe is delivered to, and realizes the accurate mixing of biliquid bottom hole fixed point, can reduce biliquid in drilling
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 in the top of 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 and 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 be in the envelope block formed by dual slurry, i.e. steel sleeve 6 mouth of pipe of Grouting Pipe 5 to the bottom of Grouting Pipe 5 by double
Slurry is blocked.To be blocked between Grouting Pipe and the wall of a borehole by dual slurry so that closely knit confined pressure section, increase note are formed outside Grouting Pipe
Slurry pipe bearing capacity.
Envelope block top and the top flush of steel sleeve 6.Make the setting of envelope block, both can be between steel sleeve and the wall of a borehole reliably
Closure, the normal work of steel sleeve is not interfered with also.
In the present invention, slip casting biliquid is cement grout 1, waterglass slurries or other rapid hardening slurries 2.Cement grout 1 is along water
Slurry liquid rodding 3 is injected into ttom of pipe exact position via Grouting Pipe 5, and rapid hardening slurries 2 are along rapid hardening slurry conduit road 4 via slip casting
Pipe 5 is injected into ttom of pipe exact position.
In the typical implementation method of another kind of the application, there is provided a kind of biliquid deep hole bottom pinpoints accurate mixed construction
Technique, construction procedure is as follows：
1 drilling：Using rig by surface vertical borehole, drilling to intact rock depth, bore diameter in 130mm or so or
More than, other situations such as close observation drilling yardstick and spilling water in boring procedure.
2 setting of casings：Steel sleeve is transferred after the completion of drilling, steel sleeve depth to intact rock section, 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 to drill 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, set on Grouting Pipe bottom outside wall and only starched
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, increases Grouting Pipe bearing capacity.
Construction technology of the invention is improved in conventional hybrid method, after drill hole of drilling machine to desired depth, decentralization
Biliquid is delivered to ttom of pipe and mixed in ttom of pipe, it is possible to achieve biliquid bottom hole is determined by two Grouting Pipes by Grouting Pipe respectively to bottom hole
The accurate mixing of point, can reduce mixing distance and time of the biliquid in drilling, increase the range of scatter of dual slurry.
In order that obtaining those skilled in the art can clearly understand the technical scheme of the application, 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.
Steel sleeve 6 is played after the completion of drilling to intact rock, to prevent borehole collapse and ensure top slip casting pressure-bearing.
Using biliquid sealing steel sleeve outer wall, continue to drill 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, so as to form closely knit confined pressure section outside PVC Grouting Pipes, increases PVC Grouting Pipe bearing capacities to ttom of pipe section in steel sleeve.
Dual slurry can be injected into after predetermined bottom hole position mixes again to target rock using two Grouting Pipes with precise proportions slip casting
Spread on layer/stratum.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, 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, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. biliquid deep hole bottom pinpoints accurate mixed construction technique, it is characterized in that, comprise 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 to drill to slip casting depth is intended, to two Grouting Pipes of decentralization in drilling；
Step 4：To be blocked between Grouting Pipe and the wall of a borehole, make to form closely knit confined pressure section outside Grouting Pipe.
2. construction technology as claimed in claim 1, it is characterized in that, in the step 1, with rig by surface vertical borehole, bore
Bore dia is more than or equal to 130mm；In the step 1, in boring procedure, drilling yardstick and spilling water situation should be observed.
3. construction technology as claimed in claim 1, it is characterized in that, in the step 3, the steel sleeve mouth of pipe sets sleeve pipe screw
Cap, sleeve pipe cap nut connection steel sleeve and Grouting Pipe.
4. construction technology as claimed in claim 1, it is characterized in that, in the step 3, drilling will be bored to after intending slip casting depth
Debris take out in hole.
5. construction technology as claimed in claim 1, it is characterized in that, in the step 3, set on Grouting Pipe bottom outside wall and stopped
Slurry plug.
6. construction technology as claimed in claim 1, it is characterized in that, in the step 3, will wherein Grouting Pipe top and first
Rodding is connected, and another Grouting Pipe top is connected with the second rodding.
7. construction technology as claimed in claim 5, it is characterized in that, in the step 4, in Grouting Pipe ttom of pipe lateral wall and drilling
Between wall, filled out by stop grouting plug top to hell and set dual slurry, complete closure.
8. biliquid deep hole bottom fixed point precisely mixes slip casting structure, it is characterized in that, including steel sleeve, two are set in the steel sleeve
Root Grouting Pipe, wherein Grouting Pipe top is connected with the first rodding, another Grouting Pipe top is connected 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 and sets occluding body.
9. slip casting structure as claimed in claim 8, it is characterized in that, the steel sleeve top is provided with sleeve pipe cap nut, the note
Starch pipe through sleeve pipe cap nut.
10. slip casting structure as claimed in claim 8, it is characterized in that, the occluding body is the envelope block formed by dual slurry；It is described
Envelope block top and steel sleeve top flush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141370.0A CN106894414B (en) | 2017-03-10 | 2017-03-10 | Double-liquid deep hole bottom fixed-point precise mixed construction process and grouting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141370.0A CN106894414B (en) | 2017-03-10 | 2017-03-10 | Double-liquid deep hole bottom fixed-point precise mixed construction process and grouting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106894414A true CN106894414A (en) | 2017-06-27 |
| CN106894414B CN106894414B (en) | 2023-11-03 |
Family
ID=59192626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710141370.0A Active CN106894414B (en) | 2017-03-10 | 2017-03-10 | Double-liquid deep hole bottom fixed-point precise mixed construction process and grouting structure |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191188A (en) * | 2017-07-25 | 2017-09-22 | 马钢(集团)控股有限公司 | The bad water-bearing layer positioning targeting slip casting Mine Shaft Lining of rock section, constructing device and method |
| CN108505512A (en) * | 2018-04-10 | 2018-09-07 | 山东交通学院 | A kind of city tunnel soft layer vault reinforcement means |
| CN111852484A (en) * | 2020-06-29 | 2020-10-30 | 中交重庆投资发展有限公司 | Double-liquid grouting construction method |
| CN114941453A (en) * | 2022-06-15 | 2022-08-26 | 中建一局华江建设有限公司 | Foundation reinforcement construction method based on ancient building repair |
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| CN206646495U (en) * | 2017-03-10 | 2017-11-17 | 山东大学 | Biliquid deep hole bottom fixed point precisely mixes slip casting structure |
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| CN1884790A (en) * | 2006-07-06 | 2006-12-27 | 宋彦波 | Grouting sealing method and apparatus for borehole and conductor pipe for water prospection of mine |
| WO2012155696A1 (en) * | 2011-05-13 | 2012-11-22 | 中国矿业大学 | High-pressure resistant drilled hole sealing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191188A (en) * | 2017-07-25 | 2017-09-22 | 马钢(集团)控股有限公司 | The bad water-bearing layer positioning targeting slip casting Mine Shaft Lining of rock section, constructing device and method |
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| CN108505512A (en) * | 2018-04-10 | 2018-09-07 | 山东交通学院 | A kind of city tunnel soft layer vault reinforcement means |
| CN111852484A (en) * | 2020-06-29 | 2020-10-30 | 中交重庆投资发展有限公司 | Double-liquid grouting construction method |
| CN114941453A (en) * | 2022-06-15 | 2022-08-26 | 中建一局华江建设有限公司 | Foundation reinforcement construction method based on ancient building repair |
| CN114941453B (en) * | 2022-06-15 | 2024-01-23 | 中建一局华江建设有限公司 | Foundation reinforcement construction method based on ancient building repair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106894414B (en) | 2023-11-03 |
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