CN102363958B - Grouting pipe - Google Patents
Grouting pipe Download PDFInfo
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- CN102363958B CN102363958B CN2011103729749A CN201110372974A CN102363958B CN 102363958 B CN102363958 B CN 102363958B CN 2011103729749 A CN2011103729749 A CN 2011103729749A CN 201110372974 A CN201110372974 A CN 201110372974A CN 102363958 B CN102363958 B CN 102363958B
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- China
- Prior art keywords
- pipe
- discharge pipe
- thin
- grouting
- walled body
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- 239000004568 cement Substances 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims description 17
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000011440 grout Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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 the bored pile post grouting construction method.
Background technology
In recent years, Post Casting Techniques in Bored Piles is used widely owing to effectively improving the pile body vertical bearing capacity, and develops into gradually a kind of routine techniques means.Post Casting Techniques in Bored Piles refers to after the pore-forming of stake hole pre-plugged discharge pipe in bearing course at pile end, and with the grout pipe pass to ground, then carry out the pouring concrete of bored pile, and consolidation liquid (being generally cement grout) is pressed in bearing course at pile end by the grouting pipeline with mud jacking equipment (grout pump) before final set after concrete initial set, seepage flow by consolidation liquid, solidify, bearing course at pile end is carried out compacted, fixed, form relative compacting body in stake end certain limit, thereby the raising bearing capacity of pile tip, reduce pile foundation settlement.
in the prior art, the function that generally by madjack pipe, realizes introducing and discharging cement grout, this madjack pipe is generally by temporary catheter, slurry pressuring tube and discharge pipe form, temporary catheter wherein, slurry pressuring tube and discharge pipe all adopt the metal tube of same model specification to make, the length of temporary catheter and discharge pipe is that full-length is usually fixing, and the length of slurry pressuring tube can be selected arbitrarily according to the difference of the perfusion degree of depth, but a problem existing in practice of existing madjack pipe is, when the perfusion degree of depth of cement paste is darker, the length increase of slurry pressuring tube part causes the weight of madjack pipe and produces materials significantly increasing, this has increased added burden on the one hand transportation or construction operation, the manufacturing cost of madjack pipe is greatly increased.
Correspondingly with it is on the other hand, in prior art, the tube wall thickness of madjack pipe is generally 2.0mm-3.5mm, 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 with object on every side and make discharge pipe produce distortion in transportation and the course of work, also can be damaged in the time of seriously, affects its grouting effect.
The utility model content
Purpose of the present invention, overcome exactly the deficiencies in the prior art, a kind of madjack pipe is provided, and in this madjack pipe, the wall thickness of slurry pressuring tube is less than the wall thickness of temporary catheter and discharge pipe, and it effectively reduces weight and the manufacturing cost of madjack pipe under the condition that meets design and construction and safety standard.
In order to achieve the above object, adopt following technical scheme:
A kind of madjack pipe, the discharge pipe that comprises for the temporary catheter that is connected with pneumatic mortar machine, is used for transmitting the slurry pressuring tube of cement paste and is used for discharging cement paste, described temporary catheter, slurry pressuring tube and discharge pipe are flexibly connected in turn by sleeve, described slurry pressuring tube comprises thin-walled body and being fastenedly connected in the connector at thin-walled body two ends, and the wall thickness of described thin-walled body is less than the wall thickness of temporary catheter and discharge pipe.
Further, the wall thickness of described thin-walled body is between 0.8mm-2.0mm.
Further, peripheral place is provided with protection ring to described discharge pipe in end.
Again further, described protection ring is circular, and protection ring is welded on the discharge pipe external surface.
Also further, the end of described discharge pipe is provided with the crown cap for axial shutoff discharge pipe.
As a kind of specific embodiment, described discharge pipe has the plasma discharge hole of built-in stopple on tube wall, and the periphery of described discharge pipe is wrapped up by rubber peel, and described rubber peel is by plastics strap or adhesive waterproof tape tighten.
Further, the external diameter of described thin-walled body is not more than the internal diameter of connector.
As a kind of specific embodiment, the external diameter of described thin-walled body equates with the outside dimension of connector.
Also further, connect for crimping between described connector and thin-walled body.
As a kind of specific embodiment, between described connector and 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 the discharge pipe thin-walled body as slurry pressuring tube, effectively reduce materials and the weight of madjack pipe under the condition that meets design and construction and safety standard, save manufacturing cost on the one hand, alleviated on the other hand the extra load of transportation and construction; Be provided with protection ring in periphery, discharge pipe end the discharge pipe body is protected, effectively avoided discharge pipe because of collision or pushed being damaged, thereby guaranteed carrying out smoothly of mud jacking operation.
Description of drawings
Fig. 1 is the assembly schematic diagram of madjack pipe of the present invention.
In 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; The 33-rubber peel; The 34-crown cap; 35-plasma discharge hole; The 4-sleeve.
The specific embodiment
Below with reference to the accompanying drawings and specific embodiment, the present invention will be further described.
referring to Fig. 1, madjack pipe of the present invention, comprise for the temporary catheter 1 that is connected with pneumatic mortar machine, the discharge pipe 3 that is used for transmitting the slurry pressuring tube 2 of cement paste and is used for discharging cement paste, described slurry pressuring tube 2 comprises connector 22 and the thin-walled body 21 that is fastenedly connected, at least one end of temporary catheter 1, at least one end of discharge pipe 3 and the connector 22 of slurry pressuring tube 2 are provided with external screw thread, it is flexibly connected by being provided with match the mutually sleeve 4 of internal thread of above-mentioned external screw thread, the wall thickness of described thin-walled body 21 is less than temporary catheter 1, the wall thickness of connector 22 and discharge pipe 3, in the present embodiment, connector 22, temporary catheter 1 and discharge pipe 3 adopt the tubing of same size to make, the external diameter of thin-walled body 21 less than or/equal the internal diameter of connector 22, the outside dimension of the external diameter of thin-walled body 21 and connector 22 can be same size, connector 22 is inserted respectively at the two ends of thin-walled body 21, can exert pressure and make it produce plastic strain and the crimping of shape all-in-one-piece by the junction at both between connector 22 and thin-walled body 21, the mode that is threaded or welds connects, in order to make both connections tightr, can also first by screw thread rotation, connect, impose welding step at connecting portion again.In addition; the wall thickness of thin-walled body 21 is between 0.8-2.0mm; be preferably 1.0-1.5mm; also peripheral place is provided with protection ring 31 to above-mentioned discharge pipe 3 in end; described 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 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; periphery of discharge pipe 3 is by rubber peel 33 parcels, and described rubber peel 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 as follows:
In filling process, first discharge pipe is inserted a hole, from the cement paste of pneumatic mortar machine flow through temporary catheter 1, slurry pressuring tube 2 and enter discharge pipe 3, under the effect of the rubber peel 33 of tensioning, stopple 32 is used for plasma discharge hole 35 stifled sternly to prevent that liquid from entering discharge pipe 3 inside from outside, when the pressure of discharge pipe 3 inside is elevated to certain value, stopple 32 is outwards ejected, cement paste 35 flowed out and from the edge of rubber peel 33, permeated everywhere 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 peel 33.In the transportation of madjack pipe and inserting a hole process, due to 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 be subjected to directly clash into and be damaged.
Should be appreciated that; the content that above specific embodiment is announced only is part preferred version of the present invention; every based on technical scheme of the present invention, technical spirit according to the invention, belonging to those skilled in the art, to need not to carry out creative work be that available enforcement all should belong to protection scope of the present invention.
Claims (10)
1. madjack pipe, the discharge pipe that comprises for the temporary catheter that is connected with pneumatic mortar machine, is used for transmitting the slurry pressuring tube of cement paste and is used for discharging cement paste, described temporary catheter, slurry pressuring tube and discharge pipe are flexibly connected in turn by sleeve, it is characterized in that, described slurry pressuring tube comprises thin-walled body and being fastenedly connected in the connector at thin-walled body two ends, and the wall thickness of described 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 described 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 described discharge pipe in end.
4. madjack pipe as claimed in claim 3, is characterized in that, described 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 described discharge pipe is provided with the crown cap for axial shutoff discharge pipe.
6. madjack pipe as claimed in claim 5, is characterized in that, described discharge pipe has the plasma discharge hole of built-in stopple on tube wall, and the periphery of described discharge pipe is wrapped up by rubber peel, and described rubber peel is by plastics strap or adhesive waterproof tape tighten.
7., as the described madjack pipe of claim 1-6 any one, it is characterized in that, the external diameter of described thin-walled body is not more than the internal diameter of connector.
8., as the described madjack pipe of claim 1-6 any one, it is characterized in that, the external diameter of described thin-walled body equates with the outside dimension of connector.
9., as the described madjack pipe of claim 1-6 any one, it is characterized in that, connect for crimping between described connector and thin-walled body.
10., as the described madjack pipe of claim 1-6 any one, it is characterized in that, between described connector and 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 CN102363958A (en) | 2012-02-29 |
| CN102363958B true CN102363958B (en) | 2013-11-20 |
Family
ID=45690551
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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514221B (en) * | 2014-12-04 | 2016-06-01 | 中科院广州化灌工程有限公司 | A kind of stake rear flank grouting device |
| 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 |
| 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 |
Family Cites Families (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 |
| CN1051349C (en) * | 1994-10-11 | 2000-04-12 | 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 |
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2011
- 2011-11-21 CN CN2011103729749A patent/CN102363958B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102363958A (en) | 2012-02-29 |
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| SE01 | Entry into force of request for substantive examination | ||
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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 |