CN204283445U - A kind of secondary grouting system for shield-tunneling construction - Google Patents
A kind of secondary grouting system for shield-tunneling construction Download PDFInfo
- Publication number
- CN204283445U CN204283445U CN201420728511.0U CN201420728511U CN204283445U CN 204283445 U CN204283445 U CN 204283445U CN 201420728511 U CN201420728511 U CN 201420728511U CN 204283445 U CN204283445 U CN 204283445U
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- Prior art keywords
- grouting
- shield
- blender
- tunneling construction
- joint
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- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 title claims abstract description 36
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 23
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000005266 casting Methods 0.000 claims abstract description 20
- 239000004568 cement Substances 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 4
- 238000007569 slipcasting Methods 0.000 abstract description 10
- 239000007921 spray Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 7
- 238000004062 sedimentation Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000001987 Pyrus communis Species 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a kind of secondary grouting system for shield-tunneling construction, comprise hydraulic grouting pump, mixer, grouting pipeline and secondary two-liquid grouting device, secondary two-liquid grouting device comprises: casting head and blender, mixer is connected with hydraulic grouting pump, hydraulic grouting pump is connected with blender by grouting pipeline, blender is connected with casting head, casting head is connected with needing the space of carrying out slip casting operation, cement paste is stirred by mixer, water glass configures complete as requested, two-way solution is sent to blender through respective grouting pipeline by hydraulic grouting pump, and mix at casting head place, spray finally by casting head, fill needing the space of slip casting operation, use native system, not only grouting amount, grouting pressure can meet construction requirement, and volume is little, easy to use, can be placed on shield gantry car, can quickly through risk location and period do not shut down, ensure the quality of shield-tunneling construction safety and shield tunnel.
Description
Technical field
The utility model relates to Shield Construction Technique field, particularly relates to a kind of secondary grouting system for shield-tunneling construction.
Background technology
In shield-tunneling construction, synchronous grouting is for filling the structure void between digging diameter and section of jurisdiction external diameter, due to the structure design characteristic of grouting pipeline, the reasons such as mortar solidification shrinkage, can in the formation gap, top in excavation space after the mortar of synchronous grouting solidifies, in addition, during shield driving, stratum is disturbed, at shield structure by front, by in, by the meeting sedimentation of rear stratum, especially particularly serious in rich water sandy pear variety, surface settlement is crossed conference and is seriously injured surface line, the safety of important building, in order to effectively control surface settlement, ensure shield-tunneling construction safety, often on shield gantry car, secondary grouting equipment is installed.
The secondary grouting equipment used in prior art, usual volume is comparatively large, is put on the dolly of section of jurisdiction, uses inconvenience during use.In the shield-tunneling construction of water-rich sand layer, shut down slip casting once sedimentation larger needs, existing secondary grouting equipment not only can have influence on normal driving, the risk of also there is face sedimentation, subsiding.
Therefore; how a kind of grouting amount is provided, grouting pressure all meets construction requirement; volume is relatively little simultaneously; can be placed on shield gantry car; can quickly through risk location and period do not shut down; ensure the secondary grouting system of the quality of shield-tunneling construction safety and shield tunnel, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
For solving the problems of the technologies described above; the utility model embodiment provides a kind of secondary grouting system for shield-tunneling construction; not only grouting amount, grouting pressure can meet construction requirement; and volume little, easy to use, can be placed on shield gantry car; can quickly through risk location and period do not shut down; ensure the quality of shield-tunneling construction safety and shield tunnel, technical scheme is as follows:
The utility model provides a kind of secondary grouting system for shield-tunneling construction, comprising: hydraulic grouting pump, mixer, grouting pipeline and secondary two-liquid grouting device, and wherein, secondary two-liquid grouting device comprises: casting head and blender, wherein,
Described mixer is connected with described hydraulic grouting pump;
Described hydraulic grouting pump is connected with described blender by described grouting pipeline;
Described blender is connected with described casting head.
Preferably, described casting head comprises: valve and silk seat, wherein,
The input of described valve is connected with described blender, and output and described silk seat are threaded connection.
Preferably, described valve is ball valve.
Preferably, described blender comprises: pressure meter, four-way connection, cement paste joint and water glass joint, and described pressure meter, cement paste joint are connected by screw thread with the interface of described four-way connection respectively with water glass joint.
Preferably, described pressure meter is membrane pressure gage.
Preferably, described water glass joint comprises hose coupling, bushing joint and short tube, and one end of described hose coupling is connected with water glass solution delivery hose, and the other end is connected with described short tube by described bushing joint.
Preferably, the secondary two-liquid grouting device of the secondary grouting system for shield-tunneling construction that the utility model provides also comprises plug.
The technical scheme provided from the utility model embodiment, the secondary grouting system for shield-tunneling construction that the utility model embodiment provides, comprise hydraulic grouting pump, mixer, grouting pipeline and secondary two-liquid grouting device, wherein, secondary two-liquid grouting device comprises: casting head and blender, mixer is connected with hydraulic grouting pump, hydraulic grouting pump is connected with blender by grouting pipeline, blender is connected with casting head, casting head is then connected with needing the space of carrying out slip casting operation, through filtering stored in slurry tank after cement paste is stirred according to construction technical requirement by mixer, water glass configures complete as requested, two pipelines one of hydraulic grouting pump go deep into cement paste, another gos deep into water glass solution, two-way solution arrives blender through respective grouting pipeline, and mixing through casting head place, spray finally by casting head, fill needing the space of slip casting operation, use the secondary grouting system that the utility model provides, not only grouting amount, grouting pressure can meet construction requirement, and volume is little, easy to use, can be placed on shield gantry car, can quickly through risk location and period do not shut down, ensure the quality of shield-tunneling construction safety and shield tunnel.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of secondary grouting system principle diagram for shield-tunneling construction of the utility model embodiment;
Fig. 2 is the structural representation of the secondary two-liquid grouting device of a kind of secondary grouting system for shield-tunneling construction of the utility model embodiment.
Detailed description of the invention
Technical scheme in the utility model is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Composition graphs 1 and Fig. 2, the secondary grouting system for shield-tunneling construction that the utility model embodiment provides, comprise mixer 1, hydraulic grouting pump 2, grouting pipeline (not shown) and secondary two-liquid grouting device 3, wherein, secondary two-liquid grouting device 3 comprises casting head 31 and blender 32, and casting head 31 comprises valve 311 and silk seat 312, and blender 32 comprises pressure meter 321, four-way connection 322, cement paste joint 323 and water glass joint 324, wherein
The input of the valve 311 of casting head 31 is connected with a delivery outlet of the four-way connection 322 in blender 32, and the delivery outlet of valve 311 is connected with silk seat 312 by screw thread, and valve 311 selects convenient operation, the ball valve that start-stop performance is good;
Meter pressure table 321 in blender 32, cement paste joint 323 and water glass joint 324 respectively three interfaces remaining with four-way connection 322 are connected by screw thread.
Water glass joint 324 comprises hose coupling 3241, bushing joint 3242 and short tube 3243, and one end of hose coupling 3241 is connected with water glass delivered solution flexible pipe, and the other end is connected with short tube 3243 by bushing joint 3242.
The course of work of native system is as follows:
Mixer 1 to mix cement slurry according to construction technical requirement, after filtration stored in slurry tank after stirring, water glass solution configures complete on request, two pipelines one of hydraulic grouting pump 2 stretch into cement paste, another stretches into water glass solution, two-way solution arrives blender 32 place through respective grouting pipeline, water glass arrives bushing joint 3242 through the hose coupling 3241 of water glass joint 324, and the short tube 3243 through extending into valve 311 place sprays, then enter stratum through valve 311, silk seat 312; Cement paste enters four-way connection 322 by cement paste joint 323, and through flowing through valve 311 again outside short tube 3243 with after the annular space of four-way connection 322, silk seat 312 enters stratum.
Because the viscosity of water glass solution is little, spray in advance in the centre of blender 32, form jet, certain vacuum is formed to its back space, make cement paste be easier to admission passage and arrive stratum, two kinds of slurries are mixing after valve 311, and combined slurry flow is short through distance, effectively evade mixed serum flow process long and the easy plugging problem that causes, improve efficiency and the reliability of slip casting.
Membrane pressure gage is selected because this device is provided with pressure meter 321, can Real-Time Monitoring grouting pressure, pressure meter is near section of jurisdiction, pressure is true, effectively can prevent to answer grouting pressure too high and damage section of jurisdiction sealing and pressure break section of jurisdiction, avoid the section of jurisdiction infiltration accident caused therefrom, effectively can improve the waterproof ability of section of jurisdiction and control the sedimentation on stratum, membrane pressure gage effectively evaded ordinarily manometer use after not easy cleaning and general disposable drawback, after each slip casting, can continue to use after pressure meter diaphragm cleaning removal cement paste, both use cost was reduced, have and effectively control grouting pressure.Good effect is served to the sealing joint strip reducing mortar depositing construction cost and protection section of jurisdiction.
Silk seat 312 can do 6 ~ 10 according to the every shield structure mechanism of condition of construction, and generally can meet instructions for use, after the slip casting of casting head 31 part, general valve-off 311, need remove after slurries solidify completely; Blender 32 part can be removed and be moved on to next slip casting point continuation slip casting after valve 311 is closed.
When single liquid slurry noted as required by water glass joint 324, can by water glass joint 324 and the plug (not shown) shutoff of four-way connection 322 junction, also the short tube 3243 of water glass joint 324 can be taken off, cement injection from here, use the former cement paste entrance of plug shutoff simultaneously, or two places simultaneously cement injection to improve injection speed.
Use the secondary grouting system that the utility model provides; not only grouting amount, grouting pressure can meet construction requirement; and volume little, easy to use, can be placed on shield gantry car, can quickly through risk location and period do not shut down, ensure the quality of shield-tunneling construction safety and shield tunnel.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for parts and another component region to separate, and not necessarily requires or imply the ordinal relation that there is any this reality between these parts.
The above is only detailed description of the invention of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. for a secondary grouting system for shield-tunneling construction, it is characterized in that, comprising: hydraulic grouting pump, mixer, grouting pipeline and secondary two-liquid grouting device, wherein, secondary two-liquid grouting device comprises: casting head and blender, wherein,
Described mixer is connected with described hydraulic grouting pump;
Described hydraulic grouting pump is connected with described blender by described grouting pipeline;
Described blender is connected with described casting head.
2. the secondary grouting system for shield-tunneling construction according to claim 1, it is characterized in that, described casting head comprises: valve and silk seat, wherein,
The input of described valve is connected with described blender, and output and described silk seat are threaded connection.
3. the secondary grouting system for shield-tunneling construction according to claim 2, is characterized in that, described valve is ball valve.
4. the secondary grouting system for shield-tunneling construction according to claim 1, it is characterized in that, described blender comprises: pressure meter, four-way connection, cement paste joint and water glass joint, and described pressure meter, cement paste joint are connected by screw thread with the interface of described four-way connection respectively with water glass joint.
5. the secondary grouting system for shield-tunneling construction according to claim 4, is characterized in that, described pressure meter is membrane pressure gage.
6. the secondary grouting system for shield-tunneling construction according to claim 4, it is characterized in that, described water glass joint comprises hose coupling, bushing joint and short tube, one end of described hose coupling is connected with water glass solution delivery hose, and the other end is connected with described short tube by described bushing joint.
7. the secondary grouting system for shield-tunneling construction according to claim 4, is characterized in that, also comprise plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728511.0U CN204283445U (en) | 2014-11-28 | 2014-11-28 | A kind of secondary grouting system for shield-tunneling construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728511.0U CN204283445U (en) | 2014-11-28 | 2014-11-28 | A kind of secondary grouting system for shield-tunneling construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283445U true CN204283445U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420728511.0U Expired - Fee Related CN204283445U (en) | 2014-11-28 | 2014-11-28 | A kind of secondary grouting system for shield-tunneling construction |
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| Country | Link |
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| CN (1) | CN204283445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761834A (en) * | 2017-01-10 | 2017-05-31 | 济南中铁重工轨道装备有限公司 | A kind of split type secondary grouting system of shield machine |
| CN111608695A (en) * | 2020-06-05 | 2020-09-01 | 中铁二十局集团有限公司 | Shield constructs synchronous slip casting of construction and mends thick liquid system |
-
2014
- 2014-11-28 CN CN201420728511.0U patent/CN204283445U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761834A (en) * | 2017-01-10 | 2017-05-31 | 济南中铁重工轨道装备有限公司 | A kind of split type secondary grouting system of shield machine |
| CN111608695A (en) * | 2020-06-05 | 2020-09-01 | 中铁二十局集团有限公司 | Shield constructs synchronous slip casting of construction and mends thick liquid system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: THE EIGHTEENTH BUREAU OF CHINA'S RAILROAD GROUP CO Effective date: 20150518 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150518 Address after: 072750 Hebei city of Baoding province Zhuozhou City Guanyun Road, China Railway eighteen Bureau Group Third Engineering Co Ltd Patentee after: CHINA RAILWAY 18TH ENGINEERING GROUP THIRD ENGINEERING Co.,Ltd. Patentee after: CHINA RAILWAY 18 BUREAU GROUP Co.,Ltd. Address before: 072750 Hebei city of Baoding province Zhuozhou City Guanyun Road, China Railway eighteen Bureau Group Third Engineering Co Ltd Patentee before: CHINA RAILWAY 18TH ENGINEERING GROUP THIRD ENGINEERING Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |