CN104831732A - Pile tip grouting valve tube and manufacturing method thereof - Google Patents
Pile tip grouting valve tube and manufacturing method thereof Download PDFInfo
- Publication number
- CN104831732A CN104831732A CN201510159687.8A CN201510159687A CN104831732A CN 104831732 A CN104831732 A CN 104831732A CN 201510159687 A CN201510159687 A CN 201510159687A CN 104831732 A CN104831732 A CN 104831732A
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- CN
- China
- Prior art keywords
- grouting valve
- valve pipe
- screw thread
- rubber sleave
- grouting
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
Abstract
The invention discloses a pile tip grouting valve tube and a manufacturing method thereof. The pile tip grouting valve tube comprises a grouting valve tube body, and a screw and a thread are arranged at each of the two ends of the grouting valve tube body. The grouting valve tube body is provided with a plurality of grouting holes which are arrayed horizontally and vertically and are arranged in an evenly-spaced mode and a non-return rubber bush which is arranged on the outer portion of the grouting valve tube body. Meanwhile, waterproof tape is arranged on the edge of the non-return rubber bush. Moreover, a hoop is connected to the thread in a fastening mode and is connected with a screwed plug. The pile tip grouting valve tube and the manufacturing method thereof have the advantages that the method is simple and easy to implement, and the pile tip grouting valve tube manufactured according to the method is economical and practical, so that the defects of an existing pile tip grouting valve tube are effectively overcome; meanwhile, mounting and carrying are facilitated, a pile tip grouting technology can be effectively implemented and spread, and therefore an existing ground foundation engineering technology can be developed.
Description
Technical field
The present invention relates to building foundation field of engineering technology, specifically, relate to a kind of pile end grouting valve pipe and preparation method thereof.
Background technology
Pile-end post-grouting technology is the pile foundation improving technology of development in recent years.At the bottom of this technology to be made by mud jacking, the intensity of the soft soil body is effectively strengthened, thus substantially increases grout pile end resistance, and then effectively reaches the object increasing pouring pile bearing capacity.
Its mechanism of action is for after pile body is formed, pre-buried grouting valve pipe is held to be pressed into cement paste by stake again, the inherent shortcoming that the modes such as expansion, compacted and splitting densification eliminate mud skin and pile bottom sediment is oozed by slurries, define the higher concrete of intensity after two-phase mixtures is combined, and then improve stake Soil Interface; Slurries rely on grouting pressure to become veiny to stitch originally seamless stake substratum splitting simultaneously, improve the physical and mechanical property of pile-end soil and reach expansion end effect, thus stake end surrounding soil intensity is increased, increase pile side friction and bottom bearing, and then improve ultimate bearing capacity of single pile significantly and reduce settling amount.
But existing grouting valve pipe price high can not accept by Construction unit, simultaneously also there is making problem easy not in existing grouting valve pipe.
For problem existing in above-mentioned correlation technique, at present effective solution is not yet proposed.
Summary of the invention
For problem above-mentioned in correlation technique, the present invention proposes a kind of pile end grouting valve pipe and preparation method thereof, effectively can solve existing grouting valve pipe price high and make the problem of inconvenience, thus make it have more economy and practicality.
For realizing above-mentioned technical purpose, technical scheme of the present invention is achieved in that
A kind of pile end grouting valve pipe, comprise grouting valve pipe body, the two ends of described grouting valve pipe body are provided with screw thread and screw thread, on described grouting valve pipe body anyhow arrangement and interval be evenly provided with some injected holes and be arranged on the check rubber sleave of its body outside, simultaneously, the edge of described check rubber sleave is provided with adhesive waterproof tape, and described screw thread place is fastenedly connected with cuff and described cuff is connected with plug.
Further, the two ends of described grouting valve pipe body are provided with specification is G3/4 ", length is the screw thread of 25cm.
Further, described injected hole adopts pore size distribution mode anyhow to arrange, and the spacing between two described injected holes is 100mm, and aperture is 8mm.
Further, described check rubber sleave comprises DN25 elastic caoutchouc leather sheath and non-return plug.
Further, adhesive waterproof tape is provided with between described screw thread and cuff and between described cuff and described plug.
A preparation method for pile end grouting valve pipe, comprises the steps:
1) processing of screw thread and screw thread: first carry out screw thread processing at the two ends of grouting valve pipe body, then screw thread process is carried out to the two ends of grouting valve pipe body, wherein, screw thread keeps totally intact, the specification of screw thread adopts G3/4 ", length adopts 25cm, meanwhile, notes avoiding in construction because collision causes the damage of screw thread; and if grouting valve pipe end bends serious time should be cut, forbid in this process to adopt electrogas welding blanking;
2) processing of injected hole: utilize Electric portable drill to carry out the perforation process of injected hole on the body of grouting valve pipe, wherein, described injected hole adopts hole anyhow to arrange, spacing is 100mm, and boring scope is 400mm, and aperture is 8mm, simultaneously, the injected hole of its least significant end should be not less than 50mm apart from the screw thread distance of described grouting valve pipe body bottom, has bored a hole to carry out grinding process to described injected hole afterwards, and after completing grinding process, clear up brick slag and drilling cuttings;
3) check rubber sleave is installed: utilize check rubber sleave to form the check component of grouting valve pipe, wherein, described check rubber sleave comprises DN25 elastic caoutchouc leather sheath and non-return plug, its processing length is 600mm, entangle described injected hole position comprehensively, 100mm is reserved in every side, first rubber sleave adopts adhesive waterproof tape to strengthen being wound around rubber sleave edge after completing suit, coiling length is no less than 100mm, wherein rubber sleave and grouting valve pipe are respectively wound around 50mm, the number of turns be wound around during winding is no less than 2 circles, then protectiveness winding is carried out to whole rubber sleave, be wound around the number of turns and be no less than 3 circles, whole winding process answers uniformly continous, arbitrarily must not cut off adhesive waterproof tape, and
4) overlap pipe collar and plug to install: cover pipe collar and plug consistent with the specification of grouting valve pipe body and screw thread; before cuff; first be wound around hot-water heating unsintered tape at least 4 to enclose at the screw thread place of grouting valve pipe body to ensure its water proofing property; then torque spanner is adopted to carry out cuff work; wherein; cover pipe collar is connected with plug also will be wound around hot-water heating unsintered tape, forbids to destroy the protection adhesive waterproof tape be wound around simultaneously.
Beneficial effect of the present invention: this method is simple and easy to do, and it is economical and practical according to pile end grouting valve pipe out made by it, thus the drawback efficiently solved existing for existing pile end grouting valve pipe, it is also convenient to install and carrying simultaneously, make pile end grouting technology effectively be implemented and propagate, and then existing ground foundation engineering technology is developed.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, 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 the pile end grouting valve pipe exemplary plot 1 according to the embodiment of the present invention;
Fig. 2 is the pile end grouting valve pipe exemplary plot 2 according to the embodiment of the present invention;
Fig. 3 is the pile end grouting valve pipe exemplary plot 3 according to the embodiment of the present invention;
Fig. 4 is the pile end grouting valve pipe exemplary plot 4 according to the embodiment of the present invention;
Fig. 5 is the pile end grouting valve pipe exemplary plot 5 according to the embodiment of the present invention.
In figure:
1, grouting valve pipe body; 2, non-return plug; 3, screw thread; 4, injected hole; 5, check rubber sleave; 6, adhesive waterproof tape; 7, cuff; 8, plug.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.
As Figure 1-5, according to an aspect of the present invention, describe a kind of pile end grouting valve pipe, comprise grouting valve pipe body 1, the two ends of described grouting valve pipe body 1 are provided with screw thread and screw thread 3, on described grouting valve pipe body 1 anyhow arrangement and interval be evenly provided with some injected holes 4 and be arranged on the check rubber sleave 5 of its body outside, simultaneously, the edge of described check rubber sleave 5 is provided with adhesive waterproof tape 6, further, described screw thread 3 place is fastenedly connected with cuff 7 and described cuff 7 is connected with plug 8.
In addition, in a specific embodiment, the two ends of described grouting valve pipe body 1 are provided with specification is G3/4 ", length is the screw thread of 25cm.
In addition, in a specific embodiment, described injected hole 4 adopts pore size distribution mode anyhow to arrange, and the spacing between two described injected holes 4 is 100mm, and aperture is 8mm.
In addition, in a specific embodiment, described check rubber sleave 5 comprises DN25 elastic caoutchouc leather sheath and non-return plug 2.
In addition, in a specific embodiment, adhesive waterproof tape is provided with between described screw thread 3 and cuff 7 and between described cuff 7 and described plug 8.
As Figure 1-5, according to a further aspect in the invention, describe a kind of preparation method of pile end grouting valve pipe, comprise the steps:
1) processing of screw thread and screw thread: first carry out screw thread processing at the two ends of grouting valve pipe body, then screw thread process is carried out to the two ends of grouting valve pipe body, wherein, screw thread keeps totally intact, the specification of screw thread adopts G3/4 ", length adopts 25cm, meanwhile, notes avoiding in construction because collision causes the damage of screw thread; and if grouting valve pipe end bends serious time should be cut, forbid in this process to adopt electrogas welding blanking;
2) processing of injected hole: utilize Electric portable drill to carry out the perforation process of injected hole on the body of grouting valve pipe, wherein, described injected hole adopts hole anyhow to arrange, spacing is 100mm, and boring scope is 400mm, and aperture is 8mm, simultaneously, the injected hole of its least significant end should be not less than 50mm apart from the screw thread distance of described grouting valve pipe body bottom, has bored a hole to carry out grinding process to described injected hole afterwards, and after completing grinding process, clear up brick slag and drilling cuttings;
3) check rubber sleave is installed: utilize check rubber sleave to form the check component of grouting valve pipe, wherein, described check rubber sleave comprises DN25 elastic caoutchouc leather sheath and non-return plug, its processing length is 600mm, entangle described injected hole position comprehensively, 100mm is reserved in every side, first rubber sleave adopts adhesive waterproof tape to strengthen being wound around rubber sleave edge after completing suit, coiling length is no less than 100mm, wherein rubber sleave and grouting valve pipe are respectively wound around 50mm, the number of turns be wound around during winding is no less than 2 circles, then protectiveness winding is carried out to whole rubber sleave, be wound around the number of turns and be no less than 3 circles, whole winding process answers uniformly continous, arbitrarily must not cut off adhesive waterproof tape, and
4) overlap pipe collar and plug to install: cover pipe collar and plug consistent with the specification of grouting valve pipe body and screw thread; before cuff; first be wound around hot-water heating unsintered tape at least 4 to enclose at the screw thread place of grouting valve pipe body to ensure its water proofing property; then torque spanner is adopted to carry out cuff work; wherein; cover pipe collar is connected with plug also will be wound around hot-water heating unsintered tape, forbids to destroy the protection adhesive waterproof tape be wound around simultaneously.
Conveniently understand technique scheme of the present invention, below by way of in concrete mode of occupation, technique scheme of the present invention is described in detail.
When specifically using, described rubber sleave has certain thickness and elasticity, under the protection of mackintosh impact resistant, scrape and hit, rub, open when slip casting reaches design pressure, closed when grouting pressure declines, jointly form return-stopping function with non-return plug.
When specifically using, described non-return plug comprises the sheet metal of guide, circular or squarely can form inverse-stopping functions under rubber sleave encloses hoop effect.
In sum, this method is simple and easy to do, and it is economical and practical according to pile end grouting valve pipe out made by it, thus the drawback efficiently solved existing for existing pile end grouting valve pipe, it is also convenient to install and carrying simultaneously, make pile end grouting technology effectively be implemented and propagate, and then existing ground foundation engineering technology is developed.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a pile end grouting valve pipe, comprise grouting valve pipe body (1), it is characterized in that, the two ends of described grouting valve pipe body (1) are provided with screw thread and screw thread (3), on described grouting valve pipe body (1) anyhow arrangement and interval be evenly provided with some injected holes (4) and be arranged on the check rubber sleave (5) of its body outside, simultaneously, the edge of described check rubber sleave (5) is provided with adhesive waterproof tape (6), further, described screw thread (3) place is fastenedly connected with cuff (7) and described cuff (7) is connected with plug (8).
2. pile end grouting valve pipe according to claim 1, is characterized in that, it is G3/4 that the two ends of described grouting valve pipe body (1) are provided with specification ", length is the screw thread of 25cm.
3. pile end grouting valve pipe according to claim 1, is characterized in that, described injected hole (4) adopts pore size distribution mode anyhow to arrange, and the spacing between two described injected holes (4) is 100mm, and aperture is 8mm.
4. pile end grouting valve pipe according to claim 1, is characterized in that, described check rubber sleave (5) comprises DN25 elastic caoutchouc leather sheath and non-return plug (2).
5. pile end grouting valve pipe according to claim 1, is characterized in that, is provided with adhesive waterproof tape between described screw thread (3) and cuff (7) and between described cuff (7) and described plug (8).
6. a preparation method for pile end grouting valve pipe, is characterized in that, comprises the steps:
The processing of screw thread and screw thread: first carry out screw thread processing at the two ends of grouting valve pipe body, then carry out screw thread process to the two ends of grouting valve pipe body, wherein, screw thread keeps totally intact, and the specification of screw thread adopts G3/4 ", length adopts 25cm;
The processing of injected hole: utilize Electric portable drill to carry out the perforation process of injected hole on the body of grouting valve pipe, wherein, described injected hole adopts hole anyhow to arrange, spacing is 100mm, boring scope is 400mm, and aperture is 8mm, simultaneously, the injected hole of its least significant end should be not less than 50mm apart from the screw thread distance of described grouting valve pipe body bottom, has bored a hole to carry out grinding process to described injected hole afterwards;
Check rubber sleave is installed: utilize check rubber sleave to form the check component of grouting valve pipe, wherein, described check rubber sleave comprises DN25 elastic caoutchouc leather sheath and non-return plug, its processing length is 600mm, entangle described injected hole position comprehensively, 100mm is reserved in every side, first rubber sleave adopts adhesive waterproof tape to strengthen being wound around rubber sleave edge after completing suit, coiling length is no less than 100mm, wherein rubber sleave and grouting valve pipe are respectively wound around 50mm, the number of turns be wound around during winding is no less than 2 circles, then protectiveness winding is carried out to whole rubber sleave, be wound around the number of turns and be no less than 3 circles, whole winding process answers uniformly continous, and
Cover pipe collar and plug install: cover pipe collar and plug consistent with the specification of grouting valve pipe body and screw thread, before cuff, first be wound around hot-water heating unsintered tape at least 4 to enclose at the screw thread place of grouting valve pipe body to ensure its water proofing property, then adopt torque spanner to carry out cuff work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159687.8A CN104831732A (en) | 2015-04-07 | 2015-04-07 | Pile tip grouting valve tube and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159687.8A CN104831732A (en) | 2015-04-07 | 2015-04-07 | Pile tip grouting valve tube and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN104831732A true CN104831732A (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510159687.8A Pending CN104831732A (en) | 2015-04-07 | 2015-04-07 | Pile tip grouting valve tube and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321739A (en) * | 2020-03-27 | 2020-06-23 | 云南建投第一勘察设计有限公司 | Pile bottom grouting device and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321739A (en) * | 2020-03-27 | 2020-06-23 | 云南建投第一勘察设计有限公司 | Pile bottom grouting device and application method thereof |
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Application publication date: 20150812 |
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