CN104653199B - A kind of multifunctional information grouting device and relevant grouting method thereof - Google Patents
A kind of multifunctional information grouting device and relevant grouting method thereof Download PDFInfo
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- CN104653199B CN104653199B CN201510016948.0A CN201510016948A CN104653199B CN 104653199 B CN104653199 B CN 104653199B CN 201510016948 A CN201510016948 A CN 201510016948A CN 104653199 B CN104653199 B CN 104653199B
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- grouting
- pipe
- aggregate
- slip casting
- charging basket
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Abstract
The invention discloses a kind of multifunctional information grouting device and relevant grouting method thereof, multifunctional information grouting device includes at least two Grouting Pipe and a feed pipe in parallel with Grouting Pipe, after each Grouting Pipe is connected by many siphunculus, it is connected with a static mixer, the output of described static mixer and a charging basket are connected, described charging basket is connected with described feed pipe, it is connected with sealing sleeve pipe after the coupling flange, output end ball valve of described charging basket, by controlling each Grouting Pipe and the break-make of feed pipe and the feed material of feed pipe, realize single fluid grouting, two fluid grouting, pressure injection aggregate, single liquid aggregate mixing slip casting or biliquid aggregate mixing slip casting.
Description
Technical field
The present invention relates to a kind of multifunctional information grouting device and relevant grouting method thereof.
Background technology
In underground engineering construction, water damage always perplexs a difficult problem for engineering construction, the biggest flow, prominent (the gushing) of high hydraulic pressure
Water, serious threat project progress, personal security and ecological environment.The primary abatement means of water damage have sewer drainage, dredge bridging
Close and grouting for water blocking, when underground water is carried out white-out, often destroy the original supply of underground water and circulating path, bring water
The problem of protection of resources, the most also can cause a series of engineering geological problems such as surface subsidence.Therefore, slip casting is as water hazard prediction
Main method be widely adopted, and achieve good regulation effect.
Chinese patent CN 103953365 A discloses the single, double slurry in a kind of tunnel and replaces grouting and reinforcing technology and device thereof, slip casting
Reinforcement process includes with slurry, and component A is formulated as cement grout, and B component uses water glass solution, and A, B component are by pipeline even
Connect after grouting pump enters back in blender mixing and form cement-sodium silicate double liquid；During slip casting, close water glass solution valve, beat
Boiling water mud valve, first injects single liquid cement mortar, then opens water glass solution valve and carry out mixing and inject, and single, double slurry is injected
Interval time controlled within 1-3 minute.The comprehensive single, double slurry in a kind of tunnel of analyzing replaces grouting and reinforcing technology and device thereof,
It has the following disadvantages:
1. this device is only capable of carrying out single fluid grouting and two fluid grouting, it is impossible to carry out pressure injection aggregate, single liquid-aggregate mixing slip casting and biliquid
The mixing slip casting of-aggregate, therefore its applicability is narrower.
2. it is not provided with grouting parameter monitoring device, it is impossible to slip casting process is carried out science control, have impact on slip casting to a certain extent and control
The effect of reason.
3. when water burst is dashed forward in the big crack of experience, being only difficult to closure crack with two fluid grouting, slurries can break up loss in a large number, cause
Material and the waste of fund.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that switching letter between a kind of grouting process variation, technique
Just and the multifunctional information grouting device of grouting parameter can be monitored in real time, dissimilar prominent gush is met with during Study of The Underground engineering construction
The safe efficient construction of the relevant grouting process of water, beneficially Grouting engineering and the protection of ecological environment.
For achieving the above object, the present invention uses following technical proposals:
A kind of multifunctional information grouting device, including at least two Grouting Pipe and a feed pipe in parallel with each Grouting Pipe, respectively
Grouting Pipe is connected with a static mixer after being connected by many siphunculus, the output of described static mixer and a charging basket
Being connected, described charging basket is connected with described feed pipe, with water-baffling sleeve after the coupling flange, output end ball valve of described charging basket
Pipe is connected, the feed material of break-make and feed pipe by controlling each Grouting Pipe and feed pipe, it is achieved single fluid grouting, biliquid are noted
Slurry, pressure injection aggregate, single liquid-aggregate mixing slip casting or biliquid-aggregate mixing slip casting.
Described Grouting Pipe is two, and two Grouting Pipe are all connected with two interfaces of same four-way pipe, described four-way pipe
Another two interface, an interface connects relief tube, one end of another interface joint steel pipe I, the steel pipe I other end and static mixing
Device is connected, and static mixer one end with steel pipe II again is connected, and the steel pipe II other end is connected with charging basket, described steel pipe I and steel
All it is welded with on pipe II on ball check valve, and described steel pipe II and Pressure gauge and ultrasonic flowmeter are set simultaneously.
It is equipped with ball check valve on the pipeline that described Grouting Pipe, relief tube are connected with four-way pipe.
Described feed pipe also is provided with ball check valve on the connecting line of charging basket.
Being connected with flanged ball valve after described charging basket welding flange, last flanged ball valve connects sealing sleeve pipe.
Described SK type static mixer is connected by ring flange.
Described charging basket one end solder ball stop valve, one end welding flange, feed pipe and charging ball valve are set simultaneously；Charging basket
For external diameter Φ 108mm, the seamless steel pipe of wall thickness 5mm.
Described feed pipe is external diameter Φ 50mm, the seamless steel pipe of wall thickness 2.5mm；Aggregate is added by feed pipe and charging ball valve
In charging basket.
The single fluid grouting method of described multifunctional information grouting device is as follows:
When carrying out filling and injecting slurry, use two single fluid grouting pumps, by Grouting Pipe and ball check valve between grouting pump and four-way pipe
Connect, and without aggregate in charging basket；
When carrying out osmotic grouting, wherein a Grouting Pipe will tear open and remove, its corresponding ball check valve as standby relief valve, this
Time charging basket in without aggregate, and moment record grouting pressure and unit grouting amount during slip casting, in conjunction with GIN slip casting method evaluation
Standard judges slip casting effect；
The two fluid grouting method of multifunctional information grouting device is as follows:
When water yield is less than 125L/min 10m more than 15L/min 10m, list slurry is easily broken up, or needs to control slurries
Range of scatter and when using two fluid grouting technique, use a Double-liquid mud-injection pump or two single fluid grouting pumps, two migration difference slurries
The Grouting Pipe of liquid is connected on four-way pipe by ball check valve, and without aggregate in charging basket, moment record note during slip casting
Slurry pressure and unit grouting amount, judge slip casting effect in conjunction with GIN slip casting method evaluation criterion.
The pressure injection aggregate method of described multifunctional information grouting device is as follows:
When fracture opening is less than 20mm more than 5mm, in order to improve the diffusion length of aggregate, use grouting pump setting-out
Aggregate is injected in crack by mode, adds fine aggregate or coarse aggregate, two notes now by feed pipe and charging ball valve in charging basket
Slurry pipe connects a grouting pump respectively, or tear open remove a Grouting Pipe and its corresponding ball check valve as standby relief valve, inject
During moment record grouting pressure and unit water injection rate.
Single liquid of described multifunctional information grouting device-aggregate mixing grouting method, as follows:
When fracture opening is more than 20mm, simple aggregate is difficult to block crack, uses the slip casting that single liquid and aggregate are mutually combined
Technique, adds fine aggregate or coarse aggregate now by feed pipe and charging ball valve in charging basket, and two Grouting Pipe connect one respectively
Grouting pump, or tear open remove a Grouting Pipe and its corresponding ball check valve as standby relief valve, moment record note during slip casting
Slurry pressure and unit grouting amount, judge slip casting effect in conjunction with GIN slip casting method evaluation criterion.
The biliquid of described multifunctional information grouting device-aggregate mixing grouting method, as follows:
When water yield more than 125L/min 10m or pressure head H more than 100m, when needing to block aquaporin in time, adopt
The grouting process being mutually combined with biliquid and aggregate, adds fine aggregate or thick bone now by feed pipe and charging ball valve in charging basket
Material, grouting pump selects a biliquid pump or two single liquid pumps, the Grouting Pipe of two different slurries of migration to be connected by ball check valve
On four-way pipe, during slip casting, moment record grouting pressure and unit grouting amount, judge note in conjunction with GIN slip casting method evaluation criterion
Slurry effect.
GIN slip casting method evaluation criterion
| GIN intensity (MPa L/m) | Pmax(MPa) | Vmax(L/m) |
| ＞ 250 is the highest | 5 | 300 |
| 200, high | 4 | 250 |
| 150, medium | 3 | 200 |
| 100, low | 2.25 | 150 |
| ＜ 50 is the lowest | 1.5 | 100 |
Note: PmaxFor final grouting pressure；VmaxFor maximum unit grouting amount.
The present invention gives multifunctional information grouting device and the implementation thereof administering prominent discharge disaster in engineering construction, solve
Grouting process is single, mortar depositing construction empirical and regulation effect poor.Multifunctional information grouting device is applied to note
In slurry construction, compared with forefathers' research, this device is possible not only to carry out single fluid grouting, two fluid grouting, but also can carry out pressure injection
Between aggregate, single liquid-aggregate mixing slip casting and biliquid-aggregate mixing slip casting, and different grouting process, switching is easy, safety coefficient is high；
Pressure gauge and ultrasonic flowmeter that this device is arranged can provide grouting parameter in real time, are suitable for GIN slip casting method, eliminate slip casting
The empirical of construction；Additionally, this device applicability is strong, comprehensive grouting is respond well, reduce construction costs to a certain extent.
The present invention solves that grouting process is single, mortar depositing construction empirical and regulation effect poor, has the advantage that
1. this device is provided with four-way pipe and charging basket, is possible not only to carry out single fluid grouting, two fluid grouting, and can carry out pressure injection
Aggregate, single liquid-aggregate mixing slip casting and biliquid-aggregate mixing slip casting；
2. this device is provided with Pressure gauge and ultrasonic flowmeter, can monitor the pressure during slip casting and unit slip casting in real time
Amount, carries out scientific control in conjunction with GIN slip casting method evaluation criterion to slip casting process；
3. can add aggregate in charging basket, without disassembling charging basket and flange ball by the feed pipe on charging basket and charging ball valve
Valve, adds the i.e. convenient safety again of aggregate with this；
4. this device can select different grouting process according to the prominent water burst situation of engineering site, and kinds of processes can cooperate
To improve grouting treatment effect；
5. the assembling of device is very simple, and safety coefficient is high；Between different process, switching is quickly, it is to avoid the waste of material, saves
In man-hour, reduce construction costs.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Wherein 1. relief tube；2. ball check valve；3. Grouting Pipe；4. Grouting Pipe；5. four-way pipe；6. steel pipe I；7. ring flange, 8.SK
Type static mixer；9. Pressure gauge；10. steel pipe II；11. ultrasonic flowmeters；12. ball check valves；13. charging baskets；14. chargings
Ball valve；15. feed pipes；16. ring flanges；17. flanged ball valves；18. sealing sleeve pipes.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
The present invention gives multifunctional information grouting device and the implementation thereof administering prominent discharge disaster in engineering construction, solve
Grouting process is single, mortar depositing construction empirical and regulation effect poor.Multifunctional information grouting device is applied to note
In slurry construction, compared with forefathers' research, this device is possible not only to carry out single fluid grouting, two fluid grouting, but also can carry out pressure injection
Between aggregate, single liquid-aggregate mixing slip casting and biliquid-aggregate mixing slip casting, and different grouting process, switching is easy, safety coefficient is high；
Pressure gauge and ultrasonic flowmeter that this device is arranged can provide grouting parameter in real time, are suitable for GIN slip casting method, eliminate slip casting
The empirical of construction；Additionally, this device applicability is strong, comprehensive grouting is respond well, reduce construction costs to a certain extent,
Concrete device is as follows:
As it is shown in figure 1, multifunctional information grouting device, mainly by relief tube 1, ball check valve 2 and 12, Grouting Pipe 3
With 4, four-way pipe 5, steel pipe I6 and steel pipe II 10, SK type static mixer 8, Pressure gauge 9, ultrasonic flowmeter 11, enter
The compositions such as material pipe 15, charging ball valve 14, flanged ball valve 17 and sealing sleeve pipe 18.Described four-way pipe 5 is by ball check valve 2
Connecting a relief tube 1 and two Grouting Pipe 3,4, last interface of four-way pipe 5 connects the spherical cut-off being welded with steel pipe I6
Valve 2, and being connected with SK type static mixer 8 after steel pipe I6 other end welding flange 7, SK type static mixer 8 again with
The steel pipe II10 being welded with ring flange 7 connects, and this steel pipe II10 arranges Pressure gauge 9 and ultrasonic flowmeter 11, steel pipe II10 simultaneously
The other end is connected with charging basket 13 by solder ball stop valve 12, and charging basket 13 arranges charging ball valve 14 and feed pipe 15, material
Being connected with flanged ball valve 17 after bucket 13 other end welding flanges 16, last flanged ball valve 17 connects sealing sleeve pipe 18.
Ball check valve 2,12 model is DN25.
Grouting Pipe 3,4 is Φ 25mm high-pressure slip-casting pipe, and pressure voltage is 20MPa.
The adapter bore of four-way pipe 5 is 25mm, and pressure voltage is 32MPa.
SK type static mixer 8 is connected by ring flange 7.
Charging basket 13 one end solder ball stop valve 12, one end welding flange 16, feed pipe 15 and charging ball valve are set simultaneously
14；Charging basket 13 is external diameter Φ 108mm, the seamless steel pipe of wall thickness 5mm.
Feed pipe 15 is external diameter Φ 50mm, the seamless steel pipe of wall thickness 2.5mm；Aggregate is by feed pipe 15 and charging ball valve 14
Add in charging basket 13.
Charging ball valve 14 model is DN50.
Flanged ball valve 17 model is DN100.
The concrete implementation of said apparatus is as follows:
A. single fluid grouting:
When carrying out filling and injecting slurry, two single fluid grouting pumps can be used, by Grouting Pipe 3,4 and ball between grouting pump and four-way pipe 5
Shape stop valve 2 connects, now without aggregate in charging basket 13；
When carrying out osmotic grouting, a Grouting Pipe 3 or 4 can be torn open and remove, its corresponding ball check valve 2 is as standby pressure release
Valve, can improve slip casting safety coefficient, now without aggregate in charging basket 13, and moment record grouting pressure and unit during slip casting
Grouting amount, judges slip casting effect in conjunction with GIN slip casting method evaluation criterion.
B. two fluid grouting:
When water yield is less than 125L/min 10m more than 15L/min 10m, list slurry is easily broken up, or needs to control slurries
Range of scatter and when using two fluid grouting technique, a Double-liquid mud-injection pump or two single fluid grouting pumps can be applied, two migration differences
The Grouting Pipe 3,4 of slurries is connected on four-way pipe 5 by ball check valve 2, and without aggregate, slip casting in charging basket 13
In journey, moment record grouting pressure and unit grouting amount, judge slip casting effect in conjunction with GIN slip casting method evaluation criterion.
C. pressure injection aggregate:
When fracture opening is less than 20mm more than 5mm, in order to improve the diffusion length of aggregate, grouting pump setting-out can be used
Mode aggregate is injected in crack, in charging basket 13, adds fine aggregate or slightly bone now by feed pipe 15 and charging ball valve 14
Material, two Grouting Pipe 3,4 can connect a grouting pump respectively, or tear open and remove a Grouting Pipe 3,4 and its corresponding spherical cut-off
Valve 2 is as standby relief valve, and during slip casting, the moment records grouting pressure and unit water injection rate.
D. single liquid-aggregate mixing slip casting:
When fracture opening is more than 20mm, simple aggregate is difficult to block crack, can use the note that single liquid and aggregate are mutually combined
Sizing process, adds fine aggregate or coarse aggregate now by feed pipe 15 and charging ball valve 14 in charging basket 13, two Grouting Pipe 3,
4 can connect a grouting pump respectively, or tear open and remove a Grouting Pipe 3,4 and its corresponding ball check valve 2 is as standby relief valve,
During slip casting, moment record grouting pressure and unit grouting amount, judge slip casting effect in conjunction with GIN slip casting method evaluation criterion.
E. biliquid-aggregate mixing slip casting:
When water yield more than 125L/min 10m or pressure head H more than 100m, when needing to block aquaporin in time, can
Use the grouting process that biliquid and aggregate are mutually combined, add in charging basket 13 carefully now by feed pipe 15 and charging ball valve 14
Aggregate or coarse aggregate, grouting pump can be selected for a biliquid pump or two single liquid pumps, and the Grouting Pipe 3,4 of two different slurries of migration is led to
Crossing ball check valve 2 to be connected on four-way pipe 5, moment record grouting pressure and unit grouting amount during slip casting, in conjunction with GIN
Slip casting method evaluation criterion judges slip casting effect.
GIN slip casting method evaluation criterion
| GIN intensity (MPa L/m) | Pmax(MPa) | Vmax(L/m) |
| ＞ 250 is the highest | 5 | 300 |
| 200, high | 4 | 250 |
| 150, medium | 3 | 200 |
| 100, low | 2.25 | 150 |
| ＜ 50 is the lowest | 1.5 | 100 |
Note: PmaxFor final grouting pressure；VmaxFor maximum unit grouting amount.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not limit to scope
System, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art need not pay
Go out various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (9)
1. a multifunctional information grouting device, it is characterized in that: include at least two Grouting Pipe and a feed pipe in parallel with each Grouting Pipe, each Grouting Pipe is connected with a static mixer after being connected by many siphunculus, the output of described static mixer and a charging basket are connected, described charging basket is connected with described feed pipe, it is connected with sealing sleeve pipe after the coupling flange, output end ball valve of described charging basket, the feed material of break-make and feed pipe by controlling each Grouting Pipe and feed pipe, realize the single fluid grouting of grouting device, two fluid grouting, pressure injection aggregate, single liquid-aggregate mixing slip casting or biliquid-aggregate mixing slip casting；
Described Grouting Pipe is two, and two Grouting Pipe are all connected with two interfaces of same four-way pipe, the another two interface of described four-way pipe, one interface connects relief tube, one end of another interface joint steel pipe I, and the steel pipe I other end is connected with static mixer, static mixer one end with steel pipe II again is connected, the steel pipe II other end is connected with charging basket, described steel pipe I and steel pipe II is all welded with on ball check valve, and described steel pipe II and arranges Pressure gauge and ultrasonic flowmeter simultaneously.
2. multifunctional information grouting device as claimed in claim 1, it is characterised in that: it is equipped with ball check valve on the pipeline that described Grouting Pipe, relief tube are connected with four-way pipe.
3. multifunctional information grouting device as claimed in claim 1, it is characterised in that: described feed pipe is additionally provided with ball check valve on the connecting line of charging basket.
4. multifunctional information grouting device as claimed in claim 1, it is characterised in that: being connected with flanged ball valve after described charging basket welding flange, flanged ball valve connects sealing sleeve pipe.
5. the single fluid grouting method of the multifunctional information grouting device described in claim 1, it is characterised in that as follows:
When carrying out filling and injecting slurry, use two single fluid grouting pumps, connected by Grouting Pipe and ball check valve between grouting pump and four-way pipe, and without aggregate in charging basket；
When carrying out osmotic grouting, a wherein Grouting Pipe being torn open and remove, its corresponding ball check valve is as standby relief valve, now without aggregate in charging basket, and moment record grouting pressure and unit grouting amount during slip casting, judge slip casting effect in conjunction with GIN slip casting method evaluation criterion.
6. the two fluid grouting method of the multifunctional information grouting device described in claim 1, it is characterised in that as follows:
When water yield is less than 125L/min 10m more than 15 L/min 10m, list slurry is easily broken up, or when needing to control grout mixing and use two fluid grouting technique, use a Double-liquid mud-injection pump or two single fluid grouting pumps, article two, the Grouting Pipe of the different slurries of migration is connected on four-way pipe by ball check valve, and without aggregate in charging basket, during slip casting, moment record grouting pressure and unit grouting amount, judge slip casting effect in conjunction with GIN slip casting method evaluation criterion.
7. the pressure injection aggregate method of the multifunctional information grouting device described in claim 1, it is characterised in that as follows:
When fracture opening is less than 20mm more than 5mm, in order to improve the diffusion length of aggregate, aggregate is injected in crack by the mode using grouting pump setting-out, in charging basket, fine aggregate or coarse aggregate is added now by feed pipe and charging ball valve, article two, Grouting Pipe connects a grouting pump respectively, or tear open remove a Grouting Pipe and its corresponding ball check valve as standby relief valve, moment record grouting pressure and unit water injection rate in injection process.
8. single liquid of the multifunctional information grouting device described in claim 1-aggregate mixing grouting method, it is characterised in that as follows:
When fracture opening is more than 20mm, simple aggregate is difficult to block crack, use the grouting process that single liquid and aggregate are mutually combined, in charging basket, fine aggregate or coarse aggregate is added now by feed pipe and charging ball valve, article two, Grouting Pipe connects a grouting pump respectively, or tear open remove a Grouting Pipe and its corresponding ball check valve as standby relief valve, moment record grouting pressure and unit grouting amount during slip casting, judge slip casting effect in conjunction with GIN slip casting method evaluation criterion.
9. the biliquid of the multifunctional information grouting device described in claim 1-aggregate mixing grouting method, it is characterised in that as follows:
When water yield more than 125L/min 10m or pressure head H more than 100m, when needing to block aquaporin in time, use the grouting process that biliquid and aggregate are mutually combined, in charging basket, fine aggregate or coarse aggregate is added now by feed pipe and charging ball valve, grouting pump selects a biliquid pump or two single liquid pumps, article two, the Grouting Pipe of the different slurries of migration is connected on four-way pipe by ball check valve, during slip casting, moment record grouting pressure and unit grouting amount, judge slip casting effect in conjunction with GIN slip casting method evaluation criterion.
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| CN201510016948.0A CN104653199B (en) | 2015-01-13 | 2015-01-13 | A kind of multifunctional information grouting device and relevant grouting method thereof |
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| CN201510016948.0A CN104653199B (en) | 2015-01-13 | 2015-01-13 | A kind of multifunctional information grouting device and relevant grouting method thereof |
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| CN104653199B true CN104653199B (en) | 2016-08-31 |
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| CN106979020A (en) * | 2017-05-03 | 2017-07-25 | 山东大学 | It is a kind of to realize porous while applying group hole slip casting sleeve pipe, device and its construction method of note |
| CN108518233A (en) * | 2018-06-15 | 2018-09-11 | 焦作市恒利水文地质工程有限责任公司 | A kind of underground grouting aggregate device |
| CN111472347B (en) * | 2020-04-17 | 2022-01-11 | 中铁六局集团有限公司 | Leaking stoppage device for underground continuous wall water leakage position |
| CN112112670B (en) * | 2020-09-18 | 2022-05-10 | 冀中能源股份有限公司 | Underground pressurized grouting water plugging soft and hard aggregate intermittent controllable filling device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2810929B2 (en) * | 1990-10-22 | 1998-10-15 | 清水建設株式会社 | Lining method of shield tunnel |
| CN2190697Y (en) * | 1993-11-13 | 1995-03-01 | 北京科技大学 | Double pump double liquid multifunction mixer |
| CN201801805U (en) * | 2010-08-05 | 2011-04-20 | 杭州金泰建设工程有限公司 | Combined double-liquid mixing and grouting device |
| CN201763349U (en) * | 2010-09-17 | 2011-03-16 | 中铁十九局集团轨道交通工程有限公司 | Two-liquid grouting device |
| CN202789368U (en) * | 2012-09-28 | 2013-03-13 | 刘斌 | Pneumatic three-fluid grouting pump |
| CN204492746U (en) * | 2015-01-13 | 2015-07-22 | 山东大学 | A kind of multifunctional information grouting device |
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