CN215057429U - Double-liquid grouting device and tunneling equipment - Google Patents
Double-liquid grouting device and tunneling equipment Download PDFInfo
- Publication number
- CN215057429U CN215057429U CN202120568542.4U CN202120568542U CN215057429U CN 215057429 U CN215057429 U CN 215057429U CN 202120568542 U CN202120568542 U CN 202120568542U CN 215057429 U CN215057429 U CN 215057429U
- Authority
- CN
- China
- Prior art keywords
- channel
- accelerator
- cement slurry
- grouting
- block
- 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.)
- Active
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a biliquid slip casting device and tunnelling equipment. Biliquid slip casting device includes: a grouting block extending in the front-rear direction; the cement slurry channel is arranged on the grouting block, extends along the front-back direction, and is provided with a cement slurry outlet at the rear part; the accelerator channel is arranged on the grouting block, the accelerator channel extends along the front-back direction, and the rear part of the accelerator channel is provided with an accelerator outlet; the mixing channel is arranged at the rear part of the grouting block and is communicated with the cement slurry outlet and the accelerator outlet, and cement slurry and the accelerator flow out of the grouting block after being mixed together in the mixing channel; the cross section of the mixing channel in the width direction of the grouting block is of a horn mouth structure with a small front part and a large rear part. The mixing channel is designed into a horn mouth structure, so that the size of a bonding surface between solidified double-liquid slurry in the mixing channel and the rear end of the grouting block is minimum, namely the bonding surface is easy to break, and the bonding force of the solidified double-liquid slurry to the tail shield can be eliminated under the action of small thrust.
Description
Technical Field
The utility model relates to a biliquid slip casting device and tunnelling equipment.
Background
The shield construction method is widely applied to the field of underground space development. When the shield is used for tunneling, a certain gap exists between the outer wall of the duct piece and the excavation outline due to the existence of the over-excavation amount. The annular gap needs to be filled with grout to achieve the purpose of controlling ground settlement. The backfilled slurry is divided into single-fluid slurry (A fluid, namely cement slurry) and double-fluid slurry (A fluid, namely cement slurry; B fluid, namely accelerator); the single-liquid grouting system is simpler, but the single-liquid grouting has longer setting time and is not beneficial to surface settlement. The double-liquid slurry is prepared by adding liquid B with the function of accelerating solidification into liquid A to shorten the solidification time of the slurry, so that the surface sedimentation is accurately controlled.
The application publication number of the Chinese invention patent application CN110130940A discloses a novel double-liquid grouting system, which realizes double-liquid synchronous grouting, shortens the slurry solidification time and improves the tunneling efficiency. However, a part of the liquid pipe B in the grouting system is positioned in the liquid channel A, and the liquid pipe B is continuously abraded during the liquid injection of the liquid A, so that the service life of the liquid pipe B is influenced, and further the service life of the double-liquid grouting system is influenced; in addition, the size of the mixed area of the liquid A and the liquid B in the grouting system is consistent in the grouting direction, and when the grouting system is stopped for a long time and then the tunneling is recovered, the double-liquid slurry in the stratum and the residual double-liquid slurry in the mixed area are solidified together, so that the instantaneous thrust of the tunneling recovery is large, and the construction risk is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-liquid grouting device, which solves the technical problems that the size of the mixing area of the liquid A and the liquid B of the grouting system in the grouting direction is consistent, and the thrust is larger at the moment of recovering the tunneling when the grouting system is stopped for a long time and recovers the tunneling; an object of the utility model is also to provide a heading equipment to the A liquid and the B liquid mixed area of slip casting system are unanimous at slip casting ascending size among the solution prior art, shut down for a long time and resume when digging, cause to resume the great and increase the technical problem of construction risk of thrust in the twinkling of an eye of tunnelling.
In order to achieve the above object, the utility model discloses biliquid slip casting device's technical scheme is:
biliquid slip casting device includes:
a grouting block extending in the front-rear direction;
the cement slurry channel is arranged on the grouting block and extends along the front-back direction, a cement slurry inlet is formed in the front part of the cement slurry channel, and a cement slurry outlet is formed in the rear part of the cement slurry channel;
the quick-setting agent channel is arranged on the grouting block, the quick-setting agent channel extends along the front-back direction, the front part of the quick-setting agent channel is provided with a quick-setting agent inlet, and the rear part of the quick-setting agent channel is provided with a quick-setting agent outlet;
the mixing channel is arranged at the rear part of the grouting block and is communicated with the cement slurry outlet and the accelerator outlet, and cement slurry and the accelerator flow out of the grouting block after being mixed together in the mixing channel;
the cross section of the mixing channel in the width direction of the grouting block is of a horn mouth structure with a small front part and a large rear part.
The beneficial effects are that: the mixing channel at the rear end of the grouting block is designed into a horn mouth structure, so that the size of a bonding surface between solidified double-liquid slurry in the mixing channel and the rear end of the grouting block is minimum, when the double-liquid slurry is pushed again, a solidification area of the mixing channel is under the action of tensile force, and the bonding surface is easy to break, so that the bonding force of the solidified double-liquid slurry on the whole tail shield can be eliminated under the action of small thrust, and the construction risk is reduced.
Furthermore, two opposite wall surfaces of the mixing channel in the width direction of the grouting block are straight inclined planes.
The beneficial effects are that: the design is convenient for processing the mixing channel.
Further, the cement slurry channel and the accelerator channel are arranged in parallel along the width direction of the grouting block.
The beneficial effects are that: design like this avoids grout passageway and accelerator passageway mutual interference, compares with among the prior art bushing type structure, has avoided the wearing and tearing of accelerator hose.
Furthermore, a cement slurry groove and an accelerator groove are formed in the grouting block, the cement slurry groove and the accelerator groove extend in the front-back direction, a cement slurry cover plate is arranged at the cement slurry groove, and the cement slurry groove and the cement slurry cover plate jointly enclose the cement slurry channel; the accelerator groove and the accelerator cover plate jointly enclose the accelerator channel.
The beneficial effects are that: the design is favorable for processing cement slurry channels and accelerating agent channels.
Furthermore, grout passageway and accelerator passageway all set up the inboard at the injected block, be equipped with the observation window on the grout apron.
The beneficial effects are that: when the cement slurry channel is blocked, the observation window can be opened to dredge, so that smooth operation is ensured.
Furthermore, a mixing groove is formed in the grouting block, a mixing cover plate is arranged at the mixing groove, and the mixing groove and the mixing cover plate jointly enclose to form the mixing channel.
The beneficial effects are that: the design is beneficial to the processing of the mixing channel.
Furthermore, a one-way valve is arranged at the outlet of the accelerating agent.
The beneficial effects are that: the check valve can prevent the accelerator from flowing backwards.
Further, the grouting block comprises at least two block units, and the block units are welded together in the front-rear direction.
The beneficial effects are that: by the design, the processing of the grouting block is facilitated.
Further, the cement paste outlet and the accelerator outlet are flush.
The beneficial effects are that: this facilitates the mixing of the cement slurry and the accelerator.
In order to achieve the above object, the utility model discloses heading equipment's technical scheme is:
tunnelling equipment, including the shield body, the shield body has biliquid slip casting device, and this biliquid slip casting device includes:
a grouting block extending in the front-rear direction;
the cement slurry channel is arranged on the grouting block and extends along the front-back direction, a cement slurry inlet is formed in the front part of the cement slurry channel, and a cement slurry outlet is formed in the rear part of the cement slurry channel;
the quick-setting agent channel is arranged on the grouting block, the quick-setting agent channel extends along the front-back direction, the front part of the quick-setting agent channel is provided with a quick-setting agent inlet, and the rear part of the quick-setting agent channel is provided with a quick-setting agent outlet;
the mixing channel is arranged at the rear part of the grouting block and is communicated with the cement slurry outlet and the accelerator outlet, and cement slurry and the accelerator flow out of the grouting block after being mixed together in the mixing channel;
the cross section of the mixing channel in the width direction of the grouting block is of a horn mouth structure with a small front part and a large rear part.
The beneficial effects are that: the mixing channel at the rear end of the grouting block is designed into a horn mouth structure, so that the size of a bonding surface between solidified double-liquid slurry in the mixing channel and the rear end of the grouting block is minimum, when the double-liquid slurry is pushed again, a solidification area of the mixing channel is under the action of tensile force, and the bonding surface is easy to break, so that the bonding force of the solidified double-liquid slurry on the whole tail shield can be eliminated under the action of small thrust, and the construction risk is reduced.
Furthermore, two opposite wall surfaces of the mixing channel in the width direction of the grouting block are straight inclined planes.
The beneficial effects are that: the design is convenient for processing the mixing channel.
Further, the cement slurry channel and the accelerator channel are arranged in parallel along the width direction of the grouting block.
The beneficial effects are that: design like this avoids grout passageway and accelerator passageway mutual interference, compares with among the prior art bushing type structure, has avoided the wearing and tearing of accelerator hose.
Furthermore, a cement slurry groove and an accelerator groove are formed in the grouting block, the cement slurry groove and the accelerator groove extend in the front-back direction, a cement slurry cover plate is arranged at the cement slurry groove, and the cement slurry groove and the cement slurry cover plate jointly enclose the cement slurry channel; the accelerator groove and the accelerator cover plate jointly enclose the accelerator channel.
The beneficial effects are that: the design is favorable for processing cement slurry channels and accelerating agent channels.
Furthermore, grout passageway and accelerator passageway all set up the inboard at the injected block, be equipped with the observation window on the grout apron.
The beneficial effects are that: when the cement slurry channel is blocked, the observation window can be opened to dredge, so that smooth operation is ensured.
Furthermore, a mixing groove is formed in the grouting block, a mixing cover plate is arranged at the mixing groove, and the mixing groove and the mixing cover plate jointly enclose to form the mixing channel.
The beneficial effects are that: the design is beneficial to the processing of the mixing channel.
Furthermore, a one-way valve is arranged at the outlet of the accelerating agent.
The beneficial effects are that: the check valve can prevent the accelerator from flowing backwards.
Further, the grouting block comprises at least two block units, and the block units are welded together in the front-rear direction.
The beneficial effects are that: by the design, the processing of the grouting block is facilitated.
Further, the cement paste outlet and the accelerator outlet are flush.
The beneficial effects are that: this facilitates the mixing of the cement slurry and the accelerator.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of a dual-fluid grouting device of the present invention;
FIG. 2 is a cross-sectional view of the cement paste channel of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1 at the location of the coagulant passage;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is a schematic structural diagram of the tail part of the dual-fluid grouting device in FIG. 1 after a long-time shutdown;
FIG. 6 is a schematic structural diagram of the tail of the double-fluid grouting device in FIG. 5 when the shield tunneling machine performs thrust reversal;
in the figure: 11-grouting blocks; 110-front paddle unit; 111-rear paddle unit; 12-accelerator joint; 13-grout joint; 14-accelerator channel; 15-observation window; 16-a cement slurry channel; 17-bonding surface; 18-a one-way valve; 19-a mixing channel; 20-front cement paste cover plate; 21-rear cement paste cover plate; 22-a hybrid cover plate; 23-cement slurry inlet; 24-a cement slurry outlet; 25-accelerator outlet; 26-an accelerator inlet; 27-front accelerator cover plate; 28-rear accelerator cover plate; 29-a mixing channel solidification zone; 30-annular setting zone.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings and are only for convenience of description of the present invention, and do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses biliquid slip casting device's embodiment 1:
as shown in fig. 1 to 3, the double-liquid grouting device comprises a grouting block 11, wherein the grouting block 11 is welded with a tail shield of a shield tunneling machine in an embedded mode; the grouting block 11 extends along the front-back direction, the inner side of the grouting block 11 is provided with an accelerator passage 14 and a cement slurry passage 16, the accelerator passage 14 and the cement slurry passage 16 both extend along the front-back direction, and the accelerator passage 14 and the cement slurry passage 16 are arranged in parallel in the width direction of the grouting block 11.
As shown in fig. 2 and 3, the accelerator passage 14 has an accelerator inlet 26 at the front thereof and an accelerator outlet 25 at the rear thereof; the grout channel 16 has a grout inlet 23 at the front and a grout outlet 24 at the rear of the grout channel 16.
In this embodiment, grout outlet 24 and accelerator export 25 parallel and level, the rear portion of slip casting piece 11 still is equipped with mixed passageway 19, and is specific, mixed passageway 19 is in grout outlet 24 and accelerator export 25's rear portion, and mixed passageway 19 intercommunication grout outlet 24 and accelerator export 25, and grout and accelerator flow out from slip casting piece 11 after mixed together at mixed passageway 19.
As shown in fig. 1 and 4, the cross section of the mixing channel 19 in the width direction of the grouting block 11 is a trumpet-shaped structure with a small front part and a large rear part, so that the adhesive force of the solidified double-fluid slurry to the whole tail shield can be eliminated under the action of small thrust. Specifically, two opposite wall surfaces of the mixing channel 19 in the width direction of the grouting block 11 are straight inclined surfaces, and two opposite wall surfaces of the mixing channel 19 in the thickness direction of the grouting block 11 are straight surfaces, so that the processing of the mixing channel 19 is facilitated.
As shown in fig. 2 and 3, a cement slurry joint 13 is connected to the cement slurry inlet 23, and cement slurry is injected into the cement slurry channel 16 through the cement slurry joint 13; the accelerator inlet 26 is connected with an accelerator joint 12, and the accelerator is injected into the accelerator channel 14 through the accelerator joint 12.
In this embodiment, a cement slurry groove, an accelerator groove and a mixing groove are formed in the inner side of the grouting block 11, the cement slurry groove and the accelerator groove extend in the front-rear direction, a cement slurry cover plate is welded to the cement slurry groove, and the cement slurry groove and the cement slurry cover plate jointly enclose the cement slurry channel 16; the accelerator cover plate is welded at the accelerator groove, and the accelerator groove and the accelerator cover plate jointly enclose the accelerator channel 14; the mixing groove is welded with a mixing cover plate 22, and the mixing groove and the mixing cover plate 22 jointly enclose the mixing channel 19.
In this embodiment, the grouting block 11 comprises a front grouting block unit 110 and a rear grouting block unit 111, which are welded together, thus facilitating the processing of the grouting block 11. As shown in fig. 2, the cement slurry groove is divided into a front cement slurry groove and a rear cement slurry groove, the front cement slurry groove is arranged on the front grout block unit 110, the front cement slurry groove is welded with a front cement slurry cover plate 20, the rear cement slurry groove is arranged on the rear grout block unit 111, and the rear cement slurry groove is welded with a rear cement slurry cover plate 21; as shown in FIG. 3, the accelerator grooves are divided into front accelerator grooves and rear accelerator grooves, the front accelerator grooves are arranged on the front grout block unit 110, the front accelerator cover plates 27 are welded at the positions of the front accelerator grooves, the rear accelerator grooves are arranged on the rear grout block unit 111, and the rear accelerator cover plates 28 are welded at the positions of the rear accelerator grooves. In other embodiments, the grouting block may include one or more than three grouting units.
Wherein, the front cement paste cover plate 20 and the front accelerator cover plate 27 are both long cover plates, and the rear cement paste cover plate 21 and the rear accelerator cover plate 28 are both short cover plates and have the same length.
As shown in fig. 2, two observation windows 15 are provided on the front grout cover 20, and when the grout passage 16 is blocked, the observation windows 15 can be opened to dredge, thereby ensuring smooth operation. In other embodiments, the number of the observation windows on the front cement paste cover plate can be set according to needs, and if needed, the observation windows can also be set on the rear cement paste cover plate.
As shown in FIG. 3, a check valve 18 is provided at the accelerator outlet 25 to prevent backflow of the accelerator.
The accelerator selected in the embodiment is water glass, and the water glass is an existing mature product.
Performing double-liquid grouting operation in the tunneling process, wherein the cement slurry is injected through a cement slurry joint 13 and is grouted to the tail part of the tail shield through a cement slurry channel 16; also, the accelerator is injected through the accelerator joint 12 and through the accelerator passage 14 to the tail of the tail shield. The cement slurry and the accelerator are mixed in a 'bell mouth' mixing channel 19 of the grouting block 11, and as shown in fig. 5 and 6, the mixed double fluid is injected into an annular space (the pipe piece is enclosed with the excavation outline), so that the double fluid grouting operation is completed.
After a long stop, as shown in fig. 5 and 6, the double liquid in the mixing channel 19 is solidified to form a mixing channel solidification area 29, and the double liquid in the annular space is solidified to form an annular solidification area 30 (the annular solidification area is integrated with the inner wall of the excavation outline and is collectively called as a stratum), wherein the solidified double liquid is adhered with the rear end of the grouting block to form an adhesion surface 17; because the size of the solidified double-liquid slurry in the mixing channel 19 is the minimum with the bonding surface 17 at the rear end of the grouting block, when the composite thrust is carried out, the solidification region 29 of the mixing channel is pulled to be easy to break at the bonding surface 17, so that the bonding force of the solidified double-liquid slurry to the whole tail shield can be eliminated under the action of small thrust, and the construction risk is reduced.
The double-liquid grouting device of the utility model has the advantages that the two independent cement slurry channels and the accelerator channel are designed on the grouting block, and the mixing channel is arranged at the tail ends of the two channels, so that the structure of the double-liquid grouting device is simplified, the accelerator hose is prevented from being designed, and the service life of the double-liquid grouting device is greatly prolonged; in addition, through designing into "horn mouth" type with the terminal mixing channel of slip casting piece, can easily destroy the biliquid that solidifies in the mixing channel when the shield constructs the quick-witted thrust reverser again, reduced the construction risk.
The utility model discloses biliquid slip casting device's embodiment 2:
the present embodiment is different from embodiment 1 in that, in embodiment 1, two wall surfaces of the mixing channel 19 opposed in the width direction of the slip casting block 11 are straight inclined surfaces. In this embodiment, two opposite wall surfaces of the mixing channel in the width direction of the grouting block are arc-shaped inclined surfaces.
The utility model discloses biliquid slip casting device's embodiment 3:
the present embodiment is different from embodiment 1 in that in embodiment 1, the grout passage 16 and the accelerator passage 14 are arranged in parallel in the width direction of the grout block 11. In this embodiment, a part of the accelerator passage is located in the cement slurry passage, and the construction is disclosed in application publication No. CN 110130940A.
The utility model discloses biliquid slip casting device's embodiment 4:
the difference between the present embodiment and embodiment 1 is that in embodiment 1, the cement slurry channel 16, the accelerator channel 14 and the mixing channel are respectively enclosed by a groove and a cover plate; in this embodiment, the grout passage, the accelerator passage and the mixing passage are respectively formed by pipes welded to the inner side of the grouting block.
The utility model discloses biliquid slip casting device's embodiment 5:
the present embodiment is different from embodiment 1 in that in embodiment 1, the grout passage 16 and the accelerator passage 14 are both provided inside the grout block 11. In this embodiment, the grout channel and the accelerator channel are both arranged outside the grouting block.
The utility model discloses heading equipment's embodiment, heading equipment include the shield body, and the shield body has two liquid slip casting devices, and this two liquid slip casting devices and above-mentioned two liquid slip casting devices's embodiment 1 to 5 in arbitrary the structure the same, no longer describe here. Wherein, the two liquid slip casting devices have a plurality ofly along the circumference interval arrangement of the shield body.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Biliquid slip casting device includes:
a grouting block extending in the front-rear direction;
the cement slurry channel is arranged on the grouting block and extends along the front-back direction, a cement slurry inlet is formed in the front part of the cement slurry channel, and a cement slurry outlet is formed in the rear part of the cement slurry channel;
the quick-setting agent channel is arranged on the grouting block, the quick-setting agent channel extends along the front-back direction, the front part of the quick-setting agent channel is provided with a quick-setting agent inlet, and the rear part of the quick-setting agent channel is provided with a quick-setting agent outlet;
the mixing channel is arranged at the rear part of the grouting block and is communicated with the cement slurry outlet and the accelerator outlet, and cement slurry and the accelerator flow out of the grouting block after being mixed together in the mixing channel;
the grouting device is characterized in that the cross section of the mixing channel in the width direction of the grouting block is of a horn mouth structure with a small front part and a large rear part.
2. The dual fluid injection apparatus of claim 1, wherein two opposite walls of the mixing channel in the width direction of the block are straight inclined surfaces.
3. The dual fluid grouting device of claim 1 or 2, wherein the grout channel and the accelerator channel are arranged in parallel in the width direction of the grout block.
4. The dual-fluid grouting device of claim 3, wherein the grouting block is provided with a cement slurry groove and an accelerator groove, the cement slurry groove and the accelerator groove both extend in the front-rear direction, a cement slurry cover plate is arranged at the cement slurry groove, and the cement slurry groove and the cement slurry cover plate jointly enclose the cement slurry channel; the accelerator groove and the accelerator cover plate jointly enclose the accelerator channel.
5. The dual-fluid grouting device of claim 4, wherein the cement slurry channel and the accelerator channel are both arranged on the inner side of the grouting block, and an observation window is arranged on the cement slurry cover plate.
6. The dual-fluid grouting device of claim 1 or 2, wherein a mixing groove is formed in the grouting block, a mixing cover plate is arranged at the mixing groove, and the mixing groove and the mixing cover plate jointly enclose the mixing channel.
7. The dual-liquid grouting device according to claim 1 or 2, wherein a one-way valve is arranged at the accelerator outlet.
8. The dual fluid injection apparatus as claimed in claim 1 or 2, wherein the injection block comprises at least two block units, each block unit being welded together in the front-rear direction.
9. The dual fluid grouting device of claim 1 or 2, wherein the grout outlet and accelerator outlet are flush.
10. Tunnelling apparatus comprising a shield body having a bi-liquid grouting device, characterised in that the bi-liquid grouting device is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120568542.4U CN215057429U (en) | 2021-03-19 | 2021-03-19 | Double-liquid grouting device and tunneling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120568542.4U CN215057429U (en) | 2021-03-19 | 2021-03-19 | Double-liquid grouting device and tunneling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215057429U true CN215057429U (en) | 2021-12-07 |
Family
ID=79153561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120568542.4U Active CN215057429U (en) | 2021-03-19 | 2021-03-19 | Double-liquid grouting device and tunneling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215057429U (en) |
-
2021
- 2021-03-19 CN CN202120568542.4U patent/CN215057429U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106285699B (en) | Earth pressure balanced shield, EPBS mud cake based on synchronous jet stream prevents system | |
| CN106996295B (en) | Slurry balance shield mud circulation system and slurry balance shield | |
| CN107120121B (en) | A kind of shield-tunneling construction supplements slip casting anti-settling control method in real time | |
| CN202001023U (en) | Improved shield machine grouting pipeline system | |
| CN104948196A (en) | First tunnel then station continuous construction shield station entering method | |
| CN211974980U (en) | Shield slurry injection system for inhibiting upward floating of duct piece | |
| CN109026066A (en) | A kind of novel shield machine dual-fluid synchronous slip casting system | |
| CN210217732U (en) | Slurry-soil pressure double-mode shield machine | |
| CN215057429U (en) | Double-liquid grouting device and tunneling equipment | |
| CN109441469A (en) | A kind of the self-propelled shield machine complete set of equipments and method for tunnel construction of the free section of fitting | |
| CN108708742A (en) | Combined retaining structure for concrete pipe sheet anchor pole deviation | |
| CN211777468U (en) | Shield constructs quick-witted synchronous slip casting system | |
| CN208918541U (en) | A kind of device for abolishing cutterhead mud cake | |
| CN209163817U (en) | A kind of self-propelled shield machine complete set of equipments of the free section of fitting | |
| CN115875041A (en) | Shield tail water stopping method for shield tunneling machine | |
| CN206144564U (en) | System is prevented and treated to earth pressure balance shield mud cake based on synchronous efflux | |
| CN115949084A (en) | Fiber cloth bag grouting plugging method applied to mud burst and water burst in karst area | |
| CN212454464U (en) | A leaking stoppage processing structure for coal mining tunnel trickle | |
| CN214616532U (en) | Tunnel construction pilot tunnel constructional device | |
| CN210122913U (en) | Novel double-liquid grouting system | |
| CN208718678U (en) | A kind of novel shield machine dual-fluid synchronous slip casting system | |
| CN107542475A (en) | A kind of forward and inverse cycle driving system for configuring disintegrating machine and case of quarrying | |
| CN114517683A (en) | Shield tail double-liquid synchronous grouting mixer | |
| CN211285527U (en) | Combined water blocking structure of embedded pressure steel pipe | |
| CN213807677U (en) | Improved shield tunneling machine structure for tunnel face reinforcement construction in shield tunneling machine cabin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |