CN102363958A - Grouting pipe - Google Patents
Grouting pipe Download PDFInfo
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- CN102363958A CN102363958A CN2011103729749A CN201110372974A CN102363958A CN 102363958 A CN102363958 A CN 102363958A CN 2011103729749 A CN2011103729749 A CN 2011103729749A CN 201110372974 A CN201110372974 A CN 201110372974A CN 102363958 A CN102363958 A CN 102363958A
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- discharge pipe
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Abstract
The invention relates to a grouting pipe applied to a bored pile post-grouting construction method. The grouting pipe comprises a temporary guide pipe connected with a grouting machine, a grouting guide pipe for delivering cement paste and a discharge pipe for discharging the cement paste, wherein the temporary guide pipe, the grouting guide pipe and the discharge pipe are sequentially movably connected through a sleeve; the grouting guide pipe comprises a thin-wall pipe body and connectors fastened and connected to the two ends of the thin-wall pipe body; and the wall thickness of the thin-wall pipe body is smaller than those of the temporary guide pipe and the discharge pipe. The material consumption and the weight of the grouting pipe are effectively reduced under the condition of satisfying the design construction and the safety standard, so that the manufacturing cost is saved, and the additional loads of transportation and construction are lightened; and a protective ring for protecting the grouting pipe body is arranged on the periphery of the end part of the grouting pipe, so that the grouting pipe is effectively prevented from being damaged by collision or extrusion and grouting can be smoothly performed.
Description
Technical field
The present invention relates to a kind of basic engineering construction annex, more specifically, relate to a kind of madjack pipe that is applied to drill-pouring post-pressure grouting construction method.
Background technology
In recent years, the bored pile post-grouting technology is used widely owing to effectively improving the pile body vertical bearing capacity, and develops into a kind of routine techniques means gradually.The bored pile post-grouting technology is meant buries discharge pipe in advance underground in bearing course at pile end behind the pore-forming of stake hole; And with the grout pipe pass to ground; Carry out the concrete pouring of bored pile then, and behind concrete initial set, consolidation liquid (being generally cement grout) is pressed in the bearing course at pile end through the grouting pipeline with mud jacking equipment (grout pump) before the final set, the seepage flow through consolidation liquid, solidify; Bearing course at pile end is carried out compacted, fixed; In stake end certain limit, form relative compacting body, thereby improve bearing capacity of pile tip, reduce pile foundation settlement.
In the prior art; The function that generally realizes introducing and discharging cement grout through madjack pipe; This madjack pipe generally is made up of temporary catheter, slurry pressuring tube and discharge pipe, and wherein temporary catheter, slurry pressuring tube and discharge pipe all adopt the metal tube of same model specification to make, and the length of temporary catheter and discharge pipe is that full-length is fixing usually; And the length of slurry pressuring tube can be selected arbitrarily according to the difference of the perfusion degree of depth; The problem that but existing madjack pipe exists in practice is that when the perfusion degree of depth of cement paste was dark, the length increase of slurry pressuring tube part caused the weight of madjack pipe and production materials significantly to increase; This has increased added burden on the one hand transportation or construction operation, and the manufacturing cost of madjack pipe is greatly increased.
Corresponding with it is on the other hand, and the tube wall thickness of madjack pipe is generally 2.0mm-3.5mm in the prior art, and the pressure that can reach based on this wall thickness is much larger than design pressure.
In addition, because the working environment of madjack pipe is comparatively abominable, it is easy to bump and make discharge pipe produce distortion with object on every side in transportation and the course of work, also can be damaged in the time of seriously, influences its grouting effect.
Summary of the invention
The object of the invention; Overcome the deficiency of prior art exactly; A kind of madjack pipe is provided, and the wall thickness of slurry pressuring tube is less than the wall thickness of temporary catheter and discharge pipe in this madjack pipe, and it effectively reduces the weight and the manufacturing cost of madjack pipe under the condition that satisfies design and construction and safety standard.
In order to achieve the above object, adopt following technical scheme:
A kind of madjack pipe; Comprise and be used for the temporary catheter that is connected with pneumatic mortar machine, the discharge pipe that is used to transmit the slurry pressuring tube of cement paste and is used for discharge water mud; Said temporary catheter, slurry pressuring tube and discharge pipe flexibly connect through sleeve in order; Said slurry pressuring tube comprises the thin-walled body and is fastenedly connected in the connector at thin-walled body two ends that the wall thickness of said thin-walled body is less than the wall thickness of temporary catheter and discharge pipe.
Further, the wall thickness of said thin-walled body is between 0.8mm-2.0mm.
Further, peripheral place is provided with protection ring to said discharge pipe in the end.
Again further, said protection ring is circular, and protection ring is welded on the discharge pipe external surface.
Also further, the end of said discharge pipe is provided with the crown cap that is used for axial shutoff discharge pipe.
As a kind of specific embodiment, said discharge pipe has the plasma discharge hole of built-in stopple on tube wall, and the periphery of said discharge pipe is wrapped up in by the rubber suitcase, and said rubber skin is by plastics strap or adhesive waterproof tape tighten.
Further, the external diameter of said thin-walled body is not more than the internal diameter of connector.
As a kind of specific embodiment, the external diameter of said thin-walled body equates with the outside dimension of connector.
Also further, connect for crimping between said connector and the thin-walled body.
As a kind of specific embodiment, between said connector and the thin-walled body for being welded to connect.
Compared with prior art, beneficial effect of the present invention is:
Adopt wall thickness less than the pipe fitting of temporary catheter and discharge pipe thin-walled body as slurry pressuring tube; Under the condition that satisfies design and construction and safety standard, effectively reduce the materials and the weight of madjack pipe; Practice thrift manufacturing cost on the one hand, alleviated the extra load of transportation and construction on the other hand; Outer periphery is equipped with protection ring the discharge pipe body is protected in the discharge pipe end, has effectively avoided discharge pipe to be damaged because of collision or extruding, thereby has guaranteed carrying out smoothly of mud jacking operation.
Description of drawings
Fig. 1 is the assembly sketch map of madjack pipe according to the invention.
Among the figure: the 1-temporary catheter; The 2-slurry pressuring tube; 21-thin-walled body; The 22-connector; The 3-discharge pipe; The 31-protection ring; The 32-stopple; 33-rubber skin; The 34-crown cap; 35-plasma discharge hole; The 4-sleeve.
The specific embodiment
According to accompanying drawing and specific embodiment, the present invention is further specified below.
Referring to Fig. 1; Madjack pipe of the present invention; Comprise and be used for the temporary catheter 1 that is connected with pneumatic mortar machine, the discharge pipe 3 that is used to transmit the slurry pressuring tube 2 of cement paste and is used for discharge water mud; Said slurry pressuring tube 2 comprises the connector that is fastenedly connected 22 and thin-walled body 21, and the connector 22 of at least one end of temporary catheter 1, at least one end of discharge pipe 3 and slurry pressuring tube 2 is provided with external screw thread, and it flexibly connects through being provided with match the mutually sleeve 4 of internal thread of above-mentioned external screw thread; The wall thickness of said thin-walled body 21 is less than the wall thickness of temporary catheter 1, connector 22 and discharge pipe 3; In the present embodiment, connector 22, temporary catheter 1 and discharge pipe 3 adopt the tubing of same sizes to make, the external diameter of thin-walled body 21 less than or/equal the internal diameter of connector 22; outside dimension of the external diameter of thin-walled body 21 and connector 22 can be same size; connector 22 is inserted at the two ends of thin-walled body 21 respectively, and the mode that can make its crimping that produces plastic strain and be integrally formed between connector 22 and the thin-walled body 21 through exerting pressure in both junctions, be threaded or weld connects, in order to make both connections tightr; can also impose welding step at connecting portion more earlier through the screw thread rotation connection.In addition, the wall thickness of thin-walled body 21 is preferably 1.0-1.5mm between 0.8-2.0mm; Also peripheral place is provided with protection ring 31 to above-mentioned discharge pipe 3 in the end; Said protection ring 31 is circular and is welded on discharge pipe 3 external surfaces, and the end of discharge pipe 3 is provided with the crown cap 34 that is used for axial shutoff discharge pipe 3, has the plasma discharge hole 35 of built-in stopple 32 on the tube wall of discharge pipe 3; The periphery of discharge pipe 3 is by rubber skin 33 parcels, and said rubber skin 33 is by plastics strap or adhesive waterproof tape tighten.
Based on said structure, the madjack pipe course of work of the present invention is following:
In filling process; Earlier discharge pipe is inserted a hole, from the cement paste of pneumatic mortar machine flow through temporary catheter 1, slurry pressuring tube 2 and get into discharge pipe 3, under the effect of the rubber skin 33 of tensioning; Stopple 32 is used for plasma discharge hole 35 stifled tight in case the solution stopping body gets into discharge pipe 3 inside from the outside; When discharge pipe 3 pressure inside were elevated to certain value, stopple 32 was outwards ejected, and cement paste 35 flowed out and permeated everywhere from the edge of rubber skin 33 from the plasma discharge hole this moment; In said process, stopple 32 is realized the function of similar one way valve under the cooperation of rubber skin 33.In the transportation of madjack pipe with insert in the hole process, because the existence of protection ring 31, the object of surrounding environment is difficult for touching discharge pipe 3 bodies, has avoided discharge pipe 3 bodies to receive directly bump and is damaged.
Should be appreciated that; The content that above specific embodiment is announced is merely part preferred version of the present invention; Every based on technical scheme of the present invention, technical spirit according to the invention, belong to those skilled in the art and need not to carry out the enforcement that creative work can obtain and all should belong to protection scope of the present invention.
Claims (10)
1. madjack pipe; Comprise and be used for the temporary catheter that is connected with pneumatic mortar machine, the discharge pipe that is used to transmit the slurry pressuring tube of cement paste and is used for discharge water mud; Said temporary catheter, slurry pressuring tube and discharge pipe flexibly connect through sleeve in order; It is characterized in that said slurry pressuring tube comprises the thin-walled body and be fastenedly connected in the connector at thin-walled body two ends that the wall thickness of said thin-walled body is less than the wall thickness of temporary catheter and discharge pipe.
2. madjack pipe as claimed in claim 1 is characterized in that the wall thickness of said thin-walled body is between 0.8mm-2.0mm.
3. madjack pipe as claimed in claim 2 is characterized in that, peripheral place is provided with protection ring to said discharge pipe in the end.
4. madjack pipe as claimed in claim 3 is characterized in that said protection ring is circular, and protection ring is welded on the discharge pipe external surface.
5. madjack pipe as claimed in claim 4 is characterized in that the end of said discharge pipe is provided with the crown cap that is used for axial shutoff discharge pipe.
6. madjack pipe as claimed in claim 5 is characterized in that, said discharge pipe has the plasma discharge hole of built-in stopple on tube wall, and the periphery of said discharge pipe is wrapped up in by the rubber suitcase, and said rubber skin is by plastics strap or adhesive waterproof tape tighten.
7. like each described madjack pipe of claim 1-6, it is characterized in that the external diameter of said thin-walled body is not more than the internal diameter of connector.
8. like each described madjack pipe of claim 1-6, it is characterized in that the external diameter of said thin-walled body equates with the outside dimension of connector.
9. like each described madjack pipe of claim 1-6, it is characterized in that, connect for crimping between said connector and the thin-walled body.
10. like each described madjack pipe of claim 1-6, it is characterized in that, between said connector and the thin-walled body for being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103729749A CN102363958B (en) | 2011-11-21 | 2011-11-21 | Grouting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103729749A CN102363958B (en) | 2011-11-21 | 2011-11-21 | Grouting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102363958A true CN102363958A (en) | 2012-02-29 |
| CN102363958B CN102363958B (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103729749A Active CN102363958B (en) | 2011-11-21 | 2011-11-21 | Grouting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102363958B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514221A (en) * | 2014-12-04 | 2015-04-15 | 中科院广州化灌工程有限公司 | Rear side grouting device for pile |
| CN105274994A (en) * | 2015-11-06 | 2016-01-27 | 中煤科工集团西安研究院有限公司 | Suck-back prevention and deposition prevention grouting process and device for deep waterlogged sand layer |
| CN109113066A (en) * | 2018-07-23 | 2019-01-01 | 西安市政设计研究院有限公司 | A kind of constant pressure switch block-proof type mud jacking valve and installation method and application method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203701Y (en) * | 1994-10-11 | 1995-07-19 | 中国建筑科学研究院地基基础研究所 | Pile end pressure mud-feeding and-jacking pipe |
| CN1107537A (en) * | 1994-10-11 | 1995-08-30 | 中国建筑科学研究院地基基础研究所 | Pile head grouting and supersonic detecting combined process for filling long pile in saturated soil |
| JPH1082044A (en) * | 1996-09-10 | 1998-03-31 | Nittoc Constr Co Ltd | Sleeve valve for grouting pipe |
| TW527459B (en) * | 2000-06-08 | 2003-04-11 | Shi-Huan Lu | Construction method for anti-corrosion grouting device of corrugated pipe |
| CN2816354Y (en) * | 2005-08-11 | 2006-09-13 | 张金明 | Mortar-intrusion pipe |
| CN201003164Y (en) * | 2007-01-12 | 2008-01-09 | 天津市博川岩土工程有限公司 | Gunite valve structure of drilling filling pile grouting pipe |
| CN202323940U (en) * | 2011-11-21 | 2012-07-11 | 许瑞琴 | Grouting pipe |
-
2011
- 2011-11-21 CN CN2011103729749A patent/CN102363958B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203701Y (en) * | 1994-10-11 | 1995-07-19 | 中国建筑科学研究院地基基础研究所 | Pile end pressure mud-feeding and-jacking pipe |
| CN1107537A (en) * | 1994-10-11 | 1995-08-30 | 中国建筑科学研究院地基基础研究所 | Pile head grouting and supersonic detecting combined process for filling long pile in saturated soil |
| JPH1082044A (en) * | 1996-09-10 | 1998-03-31 | Nittoc Constr Co Ltd | Sleeve valve for grouting pipe |
| TW527459B (en) * | 2000-06-08 | 2003-04-11 | Shi-Huan Lu | Construction method for anti-corrosion grouting device of corrugated pipe |
| CN2816354Y (en) * | 2005-08-11 | 2006-09-13 | 张金明 | Mortar-intrusion pipe |
| CN201003164Y (en) * | 2007-01-12 | 2008-01-09 | 天津市博川岩土工程有限公司 | Gunite valve structure of drilling filling pile grouting pipe |
| CN202323940U (en) * | 2011-11-21 | 2012-07-11 | 许瑞琴 | Grouting pipe |
Non-Patent Citations (1)
| Title |
|---|
| 杨金才: "后压浆技术在桥梁钻孔灌注桩基础施工中的应用", 《石家庄铁路职业技术学院学报》, vol. 6, no. 2, 30 June 2007 (2007-06-30), pages 52 - 55 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514221A (en) * | 2014-12-04 | 2015-04-15 | 中科院广州化灌工程有限公司 | Rear side grouting device for pile |
| CN105274994A (en) * | 2015-11-06 | 2016-01-27 | 中煤科工集团西安研究院有限公司 | Suck-back prevention and deposition prevention grouting process and device for deep waterlogged sand layer |
| CN105274994B (en) * | 2015-11-06 | 2017-06-09 | 中煤科工集团西安研究院有限公司 | Anti-suck sludge proof grouting process and grouting device in deep saturated sand |
| CN109113066A (en) * | 2018-07-23 | 2019-01-01 | 西安市政设计研究院有限公司 | A kind of constant pressure switch block-proof type mud jacking valve and installation method and application method |
| CN109113066B (en) * | 2018-07-23 | 2023-10-31 | 西安市政设计研究院有限公司 | Anti-blocking grouting valve of constant-pressure switch, mounting method and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102363958B (en) | 2013-11-20 |
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Effective date of registration: 20180319 Address after: The town of Nanhai District Yan Feng Industrial Zone Soil "community news agency 528000 Guangdong city of Foshan province" (yangya stainless steel company limited by self No. 2) Patentee after: Foshan Nanhai industry treasure building materials Co., Ltd. Address before: 528234 Songgang industrial city, Songgang industrial city, Foshan City, Nanhai District, Guangdong Patentee before: Xu Ruiqin |
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| TR01 | Transfer of patent right |