CN203927061U - A kind of push pipe surrounding type grouting device - Google Patents
A kind of push pipe surrounding type grouting device Download PDFInfo
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- CN203927061U CN203927061U CN201420309009.6U CN201420309009U CN203927061U CN 203927061 U CN203927061 U CN 203927061U CN 201420309009 U CN201420309009 U CN 201420309009U CN 203927061 U CN203927061 U CN 203927061U
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- grouting device
- steel
- positioning plate
- push pipe
- pipe
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Abstract
The utility model discloses a kind of push pipe surrounding type grouting device, the outer end of connecting bolt and steel vertical connection of block, the inner end of connecting bolt is through the annulus hole of positioning plate, on bolt, be screwed with inner nut and outer nut, the medial and lateral of being close to respectively positioning plate, screw is through steel sleeve outer wall, is screwed in the internal thread of cross wing bar end of positioning plate, steel sleeve pipe is arranged in grouting device mounting hole, and adopts structure glue to be fixed on push pipe wall.Simple in structure, easy to use, by block is set in grouting device mounting hole end, change the injection direction of mud, make mud become single-point and directly spray into the uniform plane injection along tube wall, overcome vertical injection slurry flows vector greatly and the very difficult disadvantage that forms the sealing mud collar.
Description
Technical field
The utility model relates to construction engineering technical field, more specifically relates to a kind of push pipe surrounding type grouting device, is applicable to drag reduction slip casting in long-distance pipe-jacking construction.
Background technique
Pipe jacking construction technique is the in the situation that of excavating earth surface not, take hydraulic pressure as power by push-bench and tube coupling to be laid in underground jacking section by section, until the non-excavating underground pipe line cable laying operation technique of push pipe received well.Along with Urbanization in China is accelerated, pipe-jacking technology is widely used in the underground pipe network construction such as urban water supply and sewerage, coal gas, electric power, communication.In the design and construction of pipe jacking method, the suffered frictional resistance of push pipe and the impact of jacking construction on Ground Settlement, need to inject slurries (abbreviation slip casting) with certain pressure to the tube circumference soil body when reducing jacking.For long-distance pipe-jacking construction, the application of anti-drag mud is the important measures that reduce jacking resistance.Mud lubrication anti-friction agent claims again thixotropic slurry, is formulated by a certain percentage by bentonite clay, CMC (powder chemistry paste), soda ash and water.Different soil properties should adopt different formulas, to meet different needs.The quality of thixotropic slurry drag-reduction effect, except the slurry material with selected is relevant with proportioning, also relevant with layout, grouting pump type, grouting pressure and the grouting amount of injected hole.
In steel pipe top pipe construction, the layout of injected hole, opening and shutoff are very important, and it directly has influence on the effect of slip casting drag reduction and the quality of moulding pipeline.Because caliber is large, thickness of pipe wall, make the manufacture difficulty of injected hole larger, this just requires to open less injected hole, reach again desirable drag-reduction effect, for this reason, be necessary the structure of injected hole and preparation process to improve, develop a kind of novel surrounding type grouting device.
The discovery of retrieval prior art document, patent-a kind of top pipe injection device (application number CN200920214134) discloses a kind of top pipe injection device of construction engineering technical field.This device comprises slurry injection pipe, it is characterized in that top pipe slurry injection hole is provided with internal thread, and slurry injection pipe is provided with outside thread, and slurry injection pipe end is provided with butterfly stator.Butterfly stator is welded on an end face of slurry injection pipe, and the angle of stator and slurry injection pipe axis is 50～60 °.But in the push pipe of, thickness of pipe wall large at caliber, this device slip casting effect is poor, and needs open injected hole more.
Summary of the invention
The purpose of this utility model is to be to provide a kind of push pipe surrounding type grouting device, simple in structure, easy to use, by being set in grouting device mounting hole end, block changes the injection direction of mud, make mud become single-point and directly spray into the uniform plane injection along tube wall, overcome vertical injection slurry flows vector greatly and the very difficult disadvantage that forms the sealing mud collar.
In order to realize above-mentioned object, the utility model adopts following technical measures:
A surrounding type grouting device, it is blocked a shot by steel, connecting bolt, outer nut, inner nut, positioning plate, steel sleeve pipe, screw, water blocking head forms.Its annexation is: the outer end of connecting bolt and steel vertical connection of block, and Placement is welding; The inner end of connecting bolt, through the annulus hole of positioning plate, is screwed with inner nut and outer nut on bolt, be close to respectively the medial and lateral of positioning plate; Screw is through steel sleeve outer wall, is screwed in the internal thread of cross wing bar end of positioning plate; Steel sleeve pipe is arranged in grouting device mounting hole, and adopts structure glue to be fixed on push pipe wall.
Described steel block is the circular steel disc of thick about 9-10mm, diameter 110-130mm.
Described connecting bolt is diameter 9-10mm, with externally threaded steel pole, length is consistent with push pipe wall thickness, about 90-110mm.
Described inner nut and outer nut are the specifications and models nut that internal thread and connecting bolt match.
Described positioning plate is a cross steel disc, the about 9-10mm of thickness, it is the annulus that the about 10-12mm of internal diameter, external diameter are 19-21mm in the middle of being shaped as, outside is criss-cross wing bar, wing bar is about 29-31mm, wide 9-11mm, it is 3-5mm, dark 9-11mm circular hole that a diameter is bored in wing bar end, in circular hole, car has internal thread.
Described steel sleeve pipe is external diameter than the little 2 ~ 3mm of grouting device mounting hole, steel pipe that length is consistent with push pipe wall thickness, and on steel casing shoe inwall, within the scope of 4-6cm, car becomes internal thread.
Described structure glue is YJS-501 construction structure glue.
Described screw is the threaded fastener with round structure shaped head, and screw specification model and positioning plate wing bar end circular port match, and screw is screwed in the circular port of positioning plate wing bar end through steel casing wall.
Described water blocking head is standard cast iron water blocking, and water blocking headband has outside thread, to be connected with the internal thread of steel inner end.
Described a kind of surrounding type grouting device installation method and mode of operation are: every joint push pipe can longitudinally be chosen 2-3 section along push pipe and lay grouting device, and each section is along the uniform 2-4 of a hoop grouting device, and grouting device is along the pipeline laying that longitudinally misplaces.During laying, first at pipeline predeterminated position, bore grouting device mounting hole, then will be arranged in grouting device mounting hole with the steel sleeve pipe that steel is blocked a shot, positioning plate connects, use structure glue that steel sleeve outer wall is firmly pasted on push pipe wall.During slip casting, slurry injection pipe and steel sleeve pipe are connected, high-pressure slurry by steel sleeve pipe the indentation, there from blocking a shot along the straight injection of tube wall, inject in the gap of backbreaking, can, by regulating the relative position of connecting bolt and positioning plate to change the gap between steel block and push pipe wall, adjust injection speed.After slip casting, pull out slurry injection pipe, water plug is tightened in steel casing shoe.
The utility model is a kind of surrounding type grouting device, has the following advantages and effect:
This installs simple structure, simple operation.This device is by arranging the injection direction that steel sleeve pipe and steel block a shot to change mud in grouting device mounting hole end, change mud single-point and directly spray for the uniform plane injection along tube wall, overcome vertical injection slurry flows vector greatly and the very difficult disadvantage that forms the sealing mud collar.Injection speed can be adjusted by the gap that regulates the relative position of connecting screw rod and positioning plate to change between steel block and push pipe wall.When slip casting is complete, connect water blocking head in steel sleeve pipe lower end, while having avoided stopping slip casting, outside silt particle blows back in pipeline.
Applicant has been applied in this surrounding type grouting device in Practical Project, discovery is in this project jacking construction, do not consider that slip casting drag reduction top power calculated value is much larger than the top power calculated value of considering grouting process, adopt the top power measured value of this surrounding type grouting device grouting process to be less than consideration slip casting drag reduction top power calculated value, and the theoretical consumption that calculates of mud amount ratio is more or less the same.This explanation, it is few that this surrounding type grouting device is effective, slurries run off, and the drag-reduction effect of mud is fairly obvious, for jacking construction, has created smoothly favourable condition.
Accompanying drawing explanation
Fig. 1 is a kind of surrounding type grouting device schematic diagram.
Fig. 2 is positioning plate in a kind of surrounding type grouting device, screw and steel sleeve pipe connection diagram.
Fig. 3 is steel sleeve pipe and grouting device mounting hole connection diagram in a kind of surrounding type grouting device.
Fig. 4 is wing bar and screw connection diagram in a kind of surrounding type grouting device.
Fig. 5 is actual top power and theoretical top power comparison diagram in a kind of test result.
Fig. 6 is actual grouting amount and theoretical grouting amount comparison diagram in a kind of test result.
Wherein: 1. steel block, 2. connecting bolt, 3. inner nut, 4. outer nut, 5. positioning plate, 6. steel sleeve pipe, 7. screw, 8. water blocking head, 9. push pipe wall, 10. grouting device mounting hole, 11. wing bars, 12. structure glue.
Embodiment
With reference to the accompanying drawings the utility model is described in further detail below:
Known according to Fig. 1, Fig. 2, a kind of push pipe surrounding type grouting device, consists of steel block 1, connecting bolt 2, outer nut 3, inner nut 4, positioning plate 5, steel sleeve pipe 6, screw 7, water blocking head 8 etc.
It is characterized in that: the outer end of connecting bolt 2 and steel 1 vertical connection of block, Placement is welding; The inner end of connecting bolt 2, through the annulus hole 11 of positioning plate 5, is screwed with inner nut 3 and outer nut 4 on bolt 2, be close to respectively the medial and lateral of positioning plate 5; Screw 7, through steel sleeve pipe 6 outer walls, is screwed in the female circular port of cross wing bar 11 end band of positioning plate 5; Steel sleeve pipe 6 is arranged in grouting device mounting hole, adopts structure glue 12 to paste on push pipe wall 9.
Described structure glue 12 is YJS-501 construction structure glue.
Described steel block 1 is thick approximately 9 or 10 or 11mm, diameter 110 or 120 or the circular steel disc of 130mm.
Described connecting bolt 2 be diameter 9 10 or 11mm, with externally threaded steel pole, length is consistent with push pipe wall thickness, approximately 90 or 100 or 110mm.
Described outer nut 3 and inner nut 4 are plain nuts that specifications and models and connecting bolt match.
Described positioning plate 5 is a cross steel disc, thickness approximately 9 or 10 or 11mm, its be shaped as in the middle of for internal diameter approximately 10 11 or 12mm, external diameter be 19 or 20 or the annulus of 21mm, outside is criss-cross wing bar 11, wing bar 11 is about 29 or 30 or 31mm, wide 9 or 10 or 11mm, it is 3 or 4 or 5mm, dark 9 or 10 or 11mm circular port that wing bar 11 ends make diameters, and in circular port, car has internal thread.
Described steel sleeve pipe 6 be external diameter than the steel pipe of the little 2 ~ 3mm of grouting device mounting hole, length and push pipe wall 9 consistency of thickness, steel sleeve pipe 6 bottoms 4 or 5 or 6cm scope Nell wall car become internal thread.
Described screw 7 is the threaded fasteners with round structure shaped head, and screw specification model and positioning plate wing bar end circular port internal thread match, and screw is screwed in positioning plate wing bar 11 end circular ports through steel sleeve pipe 6 walls.
Described water blocking head 8 is standard cast iron water blockings, and water blocking head 8 is with outside thread, and water blocking head 8 matches with the internal thread of outside thread and steel sleeve pipe 6 bottom inwalls, to be connected with steel sleeve pipe 6 bottoms.
Described a kind of surrounding type grouting device installation method and mode of operation are: every joint push pipe can longitudinally be chosen 2-3 section along push pipe and lay grouting device, and each section is along uniform 3 grouting devices of hoop, and grouting device is along the pipeline laying that longitudinally misplaces.During laying, first at pipeline predeterminated position, bore grouting device mounting hole, then the steel sleeve pipe 6 connecting with steel block 1, positioning plate 5 is put into grouting device mounting hole 10, use structure glue 12 that steel sleeve pipe 6 is firmly pasted on push pipe wall 9.During slip casting, slurry injection pipe and steel sleeve pipe 6 bottoms are connected, high-pressure slurry is through the space between positioning plate 5 and steel sleeve pipe 6, indentation, there from blocking a shot is injected in the gap of backbreaking along the straight injection of tube wall, and injection speed can be adjusted by the gap that regulates the relative position of connecting bolt 2 and positioning plate 5 to change between steel block 1 and push pipe wall 9.After slip casting, pull out slurry injection pipe, water plug 8 is tightened in steel casing shoe.
device Applicable scope:
The utility model provides surrounding type grouting device, is applicable in the construction of heavy caliber pipe-jacking slip casting drag reduction.
Claims (5)
1. a push pipe surrounding type grouting device, it comprises steel block (1), connecting bolt (2), outer nut (4), positioning plate (5), steel sleeve pipe (6), water blocking head (8), it is characterized in that: the outer end of connecting bolt (2) is connected with steel block (1), the inner end of connecting bolt (2) is through the annulus hole of positioning plate (5), on bolt (2), be screwed with inner nut (3) and outer nut (4), be close to respectively positioning plate (5) in, outside, screw (7) is through steel sleeve pipe (6) outer wall, be screwed in cross wing bar (12) the end circular port (13) of positioning plate (5), steel sleeve pipe (6) is arranged on grouting device and installs in (10) hole, adopt structure glue (12) to paste on push pipe wall (9).
2. a kind of push pipe surrounding type grouting device according to claim 1, it is characterized in that: described positioning plate (5) is a cross steel disc, thickness 9-11mm, it is the annulus that internal diameter 10-12mm, external diameter are 19-21mm in the middle of being shaped as, outside is criss-cross wing bar, the long 29-31mm of wing bar, wide 9-11mm, it is 3-5mm, dark 9-11mm circular port that wing bar end makes diameter, and in circular port, car has internal thread.
3. a kind of push pipe surrounding type grouting device according to claim 1, it is characterized in that: described steel sleeve pipe (6) is external diameter than the little 2 ~ 3mm of grouting device mounting hole (10), steel pipe that length is consistent with push pipe wall thickness, and 4-6cm scope Nell wall car in steel sleeve pipe (6) bottom becomes internal thread.
4. a kind of push pipe surrounding type grouting device according to claim 1, is characterized in that: described steel block (1) is the circular steel disc of thick 9-11mm, diameter 110-130mm.
5. a kind of push pipe surrounding type grouting device according to claim 1, is characterized in that: described connecting bolt (2) is for diameter 9-11mm, with externally threaded steel pole, and length is consistent with push pipe wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309009.6U CN203927061U (en) | 2014-06-11 | 2014-06-11 | A kind of push pipe surrounding type grouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309009.6U CN203927061U (en) | 2014-06-11 | 2014-06-11 | A kind of push pipe surrounding type grouting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203927061U true CN203927061U (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309009.6U Withdrawn - After Issue CN203927061U (en) | 2014-06-11 | 2014-06-11 | A kind of push pipe surrounding type grouting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203927061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994278A (en) * | 2014-06-11 | 2014-08-20 | 湖北省电力勘测设计院 | Top pipe surrounding type grouting device |
-
2014
- 2014-06-11 CN CN201420309009.6U patent/CN203927061U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994278A (en) * | 2014-06-11 | 2014-08-20 | 湖北省电力勘测设计院 | Top pipe surrounding type grouting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20160720 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20160720 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |