CN104775455B - A kind of test connecting device and its construction method for resistance to plucking prefabricated pile - Google Patents
A kind of test connecting device and its construction method for resistance to plucking prefabricated pile Download PDFInfo
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- CN104775455B CN104775455B CN201510081760.4A CN201510081760A CN104775455B CN 104775455 B CN104775455 B CN 104775455B CN 201510081760 A CN201510081760 A CN 201510081760A CN 104775455 B CN104775455 B CN 104775455B
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- pile
- prefabricated
- feeder
- steel bushing
- steel
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Abstract
The present invention relates to a kind of attachment means for the experiment of resistance to plucking prefabricated pile, Pile feeder bottom is provided with Pile feeder steel bushing, it is characterised in that：, be fixed for Pile feeder steel bushing and joint of precast piles by shearing bolt by cuff of the welding with prepared screw-bolt hole at prefabricated pile pile cover.The jointing is applied to the connection between the final section prefabricated pile of pullout tests stake and Pile feeder, after making pullout tests stake by the Pile feeder absolute altitude specified of feeding and carrying out corresponding pullout tests, the pile body of additional length need not be blocked, and directly unloads Pile feeder recycling.The attachment means need to amputate the operation of additional length stake after avoiding pullout tests stake experiment, and it is repeatable carry out pullout tests using Pile feeder, with economic, easy, resistance to superiority of waiting so long, with good use value and promotional value.
Description
Technical field
The present invention relates to a kind of test connecting device for resistance to plucking prefabricated pile, be particularly well-suited to PHC pile tubes, PC pile tubes,
Supporting end plate when precast square pile makees pullout tests is used.
Background technology
The resistance to plucking load bearing capacity of test prefabricated pile, often sets terrace mark using Pile feeder by prefabricated pile at present
Height, after the CAPO test using resistance to plucking loading test device to test prefabricated pile, treats that place is excavated to foundation elevation, amputation
The prefabricated pile of foundation elevation above section.Due to needing the prefabricated pile crown of amputation redundance, the conventional method is caused not enough to pass through
Ji, and increased quantities.
The content of the invention
It is an object of the invention to provide a kind of test connecting device for resistance to plucking prefabricated pile, be adapted to pile for prestressed pipe,
Prestress square pile is made pullout tests stake jointing and is used, and the pile crown without amputating prefabricated pile just can complete the resistance to plucking examination of prefabricated pile
Test.
To achieve the above object, the technical scheme is that：A kind of test connecting device for resistance to plucking prefabricated pile, send
Stake device bottom is provided with Pile feeder steel bushing, it is characterised in that：Cuff of the welding with prepared screw-bolt hole at prefabricated pile pile cover,
Pile feeder steel bushing and joint of precast piles are fixed by shearing bolt.Pile crown steel hoop is welded on outside prefabricated pile pile cover
Circle, the pile crown steel hoop reserves some bolts hole, and some bolts hole, steel hoop are reserved in relevant position in Pile feeder steel bushing
Prepared screw-bolt hole position is corresponding with pile follower steel bushing bolt hole position.
It is a further object of the present invention to provide a kind of construction method of the test connecting device for resistance to plucking prefabricated pile, adapt to
Make pullout tests stake jointing in pile for prestressed pipe, prestress square pile to use, the pile crown without amputating prefabricated pile just can be completed
The pullout tests of prefabricated pile.
To achieve these goals, the technical scheme is that：A kind of test connecting device for resistance to plucking prefabricated pile
Construction method, it is characterised in that in prefabricated pile pullout tests, before setting the prefabricated test pile of final section, in prefabricated pile pile cover
Outer ring connects steel hoop by full weld, and the steel hoop reserves some bolts hole simultaneously, reserved in Pile feeder steel bushing relevant position
Some bolts hole, and steel hoop is connected with Pile feeder steel bushing using shearing bolt, after the device carries out pullout tests,
Place be excavated to basic top mark it is high when, twist remove shearing bolt, dismantle Pile feeder and steel bushing.
When pullout tests are carried out, Pile feeder steel bushing and pile crown steel hoop are connected using shearing bolt, pullout tests
After end, the separation that bolt realizes Pile feeder steel bushing and pile crown steel hoop is directly unloaded, so as to realize the engineering of the prefabricated pile
Stake utilization is recycled with Pile feeder steel bushing.
The invention discloses certain thickness steel hoop is welded at prefabricated pile pile cover, while in the steel hoop and Pile feeder
Shearing bolt hole is reserved in steel bushing relevant position, and shearing bolt has the work of connection pile body and Pile feeder sleeve in pullout tests
With after pullout tests terminate, shearing bolt can be unloaded so as to realize recycling for Pile feeder sleeve.In steel hoop and pile follower
Connected by shearing bolt between device steel bushing, shearing resistance can be provided for prefabricated pile pullout tests, the device can not only be avoided
The operation of the unnecessary prefabricated pile crown of amputation, and it is repeatable carry out pullout tests using Pile feeder, while having economical, easy, resistance to
Wait so long advantage, with good use value and promotional value.
Brief description of the drawings
Fig. 1 is the connection drawing of this attachment means steel hoop and pile cover.
Fig. 2 is the top view of attachment means steel hoop.
Fig. 3 shows top view for Pile feeder steel bushing.
Fig. 4 is the assembling detail drawing of this attachment means.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
The present invention is connected by full weld in the outer ring of the pile cover 1 at the top of prefabricated pile body 6 with prefabricated steel hoop 2, steel hoop 2
Height should be highly identical with pile cover 1, and is welded by two ends, and the diameter of cuff is preferably 5 ~ 8cm, and specific thickness is big according to stake footpath
Small taking is determined；The top view of steel hoop 2 is as shown in Fig. 2 in the pre- residual piece shearing bolt hole 3 of steel hoop 2.In the steel of Pile feeder 7
The reserved shearing bolt hole 3 with cuff same diameter in the relevant position of sleeve 4.Stomata 8 is additionally provided with steel bushing 4.
In prefabricated pile pullout tests, before setting the prefabricated test pile of final section, full weld is passed through in the outer ring of prefabricated pile pile cover 1
Connection steel hoop 2, the steel hoop reserves some bolts hole simultaneously.If reserving bolt stem in Pile feeder steel bushing relevant position simultaneously
Hole, and with Pile feeder steel bushing are connected steel hoop by some shearing bolts 5.After the device carries out pullout tests, place
Be excavated to basic top mark it is high when, can twist except shearing bolt 3, dismantle Pile feeder and steel bushing.
The attachment means realize that the purpose of prefabricated pile resistance to plucking test is realized cutting simultaneously by dismountable pile feeding device
Stake, with economic, easy, resistance to superiority of waiting so long, with good use value and promotional value.
Claims (2)
1. a kind of test connecting device for resistance to plucking prefabricated pile, Pile feeder bottom is provided with Pile feeder steel bushing, and its feature exists
In：Cuff of the welding with prepared screw-bolt hole at prefabricated pile pile cover, by shearing bolt by Pile feeder steel bushing and prefabricated pile
Joint is fixed, and pile crown steel hoop is welded on prefabricated pile pile cover outer ring, and the pile crown steel hoop is reserved some bolts hole, sent
Some bolts hole, steel hoop prepared screw-bolt hole position and pile follower steel bushing bolt hole position are reserved in relevant position in stake device steel bushing
It is corresponding.
2. the construction method of a kind of test connecting device for resistance to plucking prefabricated pile, it is characterised in that in prefabricated pile pullout tests
In, before setting the prefabricated test pile of final section, steel hoop being connected by full weld in prefabricated pile pile cover outer ring, the steel hoop is simultaneously pre-
Stay some bolts hole, some bolts hole reserved in Pile feeder steel bushing relevant position, and using shearing bolt by steel hoop with give
Stake device steel bushing be connected, after the device carries out pullout tests, place be excavated to basic top mark it is high when, twist remove shearing bolt,
Dismounting Pile feeder and steel bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081760.4A CN104775455B (en) | 2015-02-15 | 2015-02-15 | A kind of test connecting device and its construction method for resistance to plucking prefabricated pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081760.4A CN104775455B (en) | 2015-02-15 | 2015-02-15 | A kind of test connecting device and its construction method for resistance to plucking prefabricated pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104775455A CN104775455A (en) | 2015-07-15 |
| CN104775455B true CN104775455B (en) | 2017-06-27 |
Family
ID=53617194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510081760.4A Active CN104775455B (en) | 2015-02-15 | 2015-02-15 | A kind of test connecting device and its construction method for resistance to plucking prefabricated pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775455B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214843B (en) * | 2017-07-06 | 2019-02-12 | 中建八局第三建设有限公司 | One kind is exempted to cut pile crown type precast square pile constructing device and its construction method |
| CN112982380A (en) * | 2021-02-25 | 2021-06-18 | 中建八局第四建设有限公司 | Pile splicing method for prestressed pipe piles |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1181304A (en) * | 1997-09-02 | 1999-03-26 | Hokkaido Electric Power Co Inc:The | Connection structure of steel pipe |
| CN101509251B (en) * | 2009-03-27 | 2010-12-08 | 天津市建城地基基础工程有限公司 | Pile block structure of precast pile under ground, manufacturing method and special pile feeder thereof |
| CN201459724U (en) * | 2009-06-30 | 2010-05-12 | 中冶成工上海五冶建设有限公司 | Ultra-deep pile follower of precast concrete piles |
| CN202482901U (en) * | 2012-02-28 | 2012-10-10 | 王振东 | Pull-out test steel hoop for prestressed concrete pipe pile |
| CN203113389U (en) * | 2013-03-25 | 2013-08-07 | 中国能源建设集团安徽省电力设计院 | Pre-stressed pipe pile vertical-static test device |
| CN204098020U (en) * | 2014-10-14 | 2015-01-14 | 大连力宏建筑材料有限公司 | High-strength concrete pile cover |
-
2015
- 2015-02-15 CN CN201510081760.4A patent/CN104775455B/en active Active
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| Publication number | Publication date |
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| CN104775455A (en) | 2015-07-15 |
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