CN107447796A - Static load test pile counter force system - Google Patents
Static load test pile counter force system Download PDFInfo
- Publication number
- CN107447796A CN107447796A CN201710686160.XA CN201710686160A CN107447796A CN 107447796 A CN107447796 A CN 107447796A CN 201710686160 A CN201710686160 A CN 201710686160A CN 107447796 A CN107447796 A CN 107447796A
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- CN
- China
- Prior art keywords
- counter
- force
- cap
- test pile
- force cap
- Prior art date
- 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.)
- Pending
Links
- 230000003068 static Effects 0.000 title claims abstract description 16
- 239000002689 soil Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
The invention discloses a kind of static load test pile counter force system, including：Counter-force cap body, it is fixed on the stake top of test pile, and it is cylindrical cavity body；Multiple counter-force cap brackets, it is uniformly arranged on the outer wall of the counter-force cap body；Counter-force cap supporting leg, it is at right angles symmetrically welded at the bottom of the counter-force cap bracket；Prestress wire anchor block, it is arranged between described two counter-force cap brackets separately；Prestress wire, its one end pass through the through hole on the prestress wire anchor block；Prestress wire of the invention by using varying number, to realize the static load test pile requirement of different bearer power.
Description
Technical field
The present invention relates to a kind of static load test pile counter force system.
Background technology
In field of civil engineering, foundation pile static load compression test is that the design bearing capacity of pile foundation, construction quality are verified
Basic demand and method.Because the soil property character of various regions differs, construction quality is different, therefore in order to ensure the reliability of engineering,
Foundation pile testing experiment must be carried out, to test pile bearing capacity and the various design calculating parameters relevant with bearing capacity.Entering
When the works such as row skyscraper and bridge is built, it will usually using support of various forms of pile foundations as superstructure.
In order to examine whether the vertical bearing capacity of pile foundation meets the requirement of design, usually require that a number of pile foundation carries out static load examination
Test.Dead load test on pile foundation is typically loaded using preloading, anchoring pile etc. at present, time-consuming bothersome.
The content of the invention
The problem of for being previously mentioned, the invention provides a kind of static load test pile counter force system, including：
Counter-force cap body, it is fixed on the stake top of test pile, and it is cylindrical cavity body；
Multiple counter-force cap brackets, it is uniformly arranged on the outer wall of the counter-force cap body, the top of the counter-force cap bracket
Portion flushes with the counter-force cap bodies top；
Counter-force cap supporting leg, it is at right angles symmetrically welded at the bottom of the counter-force cap bracket；
Prestress wire anchor block, its be arranged between described two counter-force cap brackets separately and bottom with it is described anti-
The top of power cap bodies top and two counter-force cap brackets separately connects, and is uniformly set on the prestress wire anchor block
Put multiple through holes；
Prestress wire, its one end is through the through hole on the prestress wire anchor block and is fixed on the prestressing force
On steel strand wires anchor block, on the movable/fixed soil body around the test pile of the other end.
Preferred scheme is：The counter-force cap body is shelved on the stake top of test pile by the NOL ring on jack.
Preferred scheme is：The counter-force cap bracket is vertically welded on the outer wall of the counter-force cap.
Preferred scheme is：According to the size of static load test pile bearing capacity, the radical of the prestress wire is determined and in soil
The embedment length of layer, its top is anchored at the periphery of the counter-force cap by intermediate plate.
The present invention is by the counter-force cap body of setting, and it is fixed on the stake top of test pile, and it is cylindrical cavity body；It is multiple
Counter-force cap bracket, it is uniformly arranged on the outer wall of the counter-force cap body, top and the counter-force of the counter-force cap bracket
Cap bodies top flushes；Counter-force cap supporting leg, it is at right angles symmetrically welded at the bottom of the counter-force cap bracket；Prestress wire
Anchor block, it is arranged between described two counter-force cap brackets separately and bottom and the counter-force cap bodies top and two
The top of counter-force cap bracket separately is connected, and multiple through holes are uniformly arranged on the prestress wire anchor block.By using
The prestress wire of varying number, to realize the static load test pile requirement of different bearer power.
Brief description of the drawings
Fig. 1 is the operating diagram of the present invention；
Fig. 2 is the profile of counter-force cap body；
Fig. 3 is the top view of counter-force cap body.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of individual other elements or its combination.
The invention provides a kind of static load test pile counter force system, including：Counter-force cap body 1, it is fixed on the stake of test pile 6
Top, it is cylindrical cavity body, and the counter-force cap body 1 is shelved on the stake top of test pile 6 by the NOL ring 8 on jack 7；
Multiple counter-force cap brackets 2, it is uniform and is vertically welded on the outer wall of the counter-force cap body 1, the top of the counter-force cap bracket 2
Portion flushes with the top of counter-force cap body 1；Counter-force cap supporting leg 3, it is at right angles symmetrically welded at the bottom of the counter-force cap bracket 2
Portion；Prestress wire anchor block 4, it is arranged between described two counter-force cap brackets 2 separately and bottom and the counter-force
The top of cap body 1 and the top of two counter-force cap brackets 2 separately connect, on the prestress wire anchor block 4 uniformly
Multiple through holes are set；Prestress wire 5, its one end is through the through hole on the prestress wire anchor block 4 and is fixed on institute
State on prestress wire anchor block 4, on the movable/fixed soil body around the test pile 6 of the other end.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details and shown here as the legend with description.
Claims (4)
- A kind of 1. static load test pile counter force system, it is characterised in that including：Counter-force cap body, it is fixed on the stake top of test pile, and it is cylindrical cavity body；Multiple counter-force cap brackets, it is uniformly arranged on the outer wall of the counter-force cap body, the top of the counter-force cap bracket with The counter-force cap bodies top flushes；Counter-force cap supporting leg, it is at right angles symmetrically welded at the bottom of the counter-force cap bracket；Prestress wire anchor block, it is arranged between two counter-force cap brackets separately and bottom and the counter-force cap body Top and the top of two counter-force cap brackets separately connect, and are uniformly arranged on the prestress wire anchor block multiple logical Hole；Prestress wire, its one end is through the through hole on the prestress wire anchor block and is fixed on the prestress steel twist On line anchor block, on the movable/fixed soil body around the test pile of the other end.
- 2. static load test pile counter force system according to claim 1, it is characterised in that the counter-force cap body passes through jack On NOL ring be shelved on the stake top of test pile.
- 3. static load test pile counter force system according to claim 1, it is characterised in that the counter-force cap bracket is vertically welded on On the outer wall of the counter-force cap.
- 4. static load test pile counter force system according to claim 1, it is characterised in that according to the big of static load test pile bearing capacity It is small, the radical of the prestress wire and the embedment length in soil layer are determined, its top is anchored at the counter-force by intermediate plate The periphery of cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710686160.XA CN107447796A (en) | 2017-08-11 | 2017-08-11 | Static load test pile counter force system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710686160.XA CN107447796A (en) | 2017-08-11 | 2017-08-11 | Static load test pile counter force system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107447796A true CN107447796A (en) | 2017-12-08 |
Family
ID=60492023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710686160.XA Pending CN107447796A (en) | 2017-08-11 | 2017-08-11 | Static load test pile counter force system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107447796A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930267A (en) * | 2018-08-02 | 2018-12-04 | 陕西建工机械施工集团有限公司 | A kind of anchor pile structure and single pile bearing capacity device |
| CN109930634A (en) * | 2019-03-28 | 2019-06-25 | 中交路桥建设有限公司 | A method of pile foundation soil layer utmost tip resistance is tested using steel pile casting self-reaction force |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2905910Y (en) * | 2005-09-01 | 2007-05-30 | 赵海生 | Counterforce device for use in pile foundation static loading test |
| KR20100031167A (en) * | 2008-09-12 | 2010-03-22 | 김형남 | Apparatus for pile load test |
| CN203569597U (en) * | 2013-11-14 | 2014-04-30 | 河南省交院工程检测加固有限公司 | Counterforce traction device for single-pile static load test |
| CN206143824U (en) * | 2016-11-02 | 2017-05-03 | 山西省交通科学研究院 | Pile foundation static test loading system |
-
2017
- 2017-08-11 CN CN201710686160.XA patent/CN107447796A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2905910Y (en) * | 2005-09-01 | 2007-05-30 | 赵海生 | Counterforce device for use in pile foundation static loading test |
| KR20100031167A (en) * | 2008-09-12 | 2010-03-22 | 김형남 | Apparatus for pile load test |
| CN203569597U (en) * | 2013-11-14 | 2014-04-30 | 河南省交院工程检测加固有限公司 | Counterforce traction device for single-pile static load test |
| CN206143824U (en) * | 2016-11-02 | 2017-05-03 | 山西省交通科学研究院 | Pile foundation static test loading system |
Non-Patent Citations (1)
| Title |
|---|
| 中铁二十三局集团有限公司: "《工程建设工法汇编》", 31 January 2014, 西南交通大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930267A (en) * | 2018-08-02 | 2018-12-04 | 陕西建工机械施工集团有限公司 | A kind of anchor pile structure and single pile bearing capacity device |
| CN109930634A (en) * | 2019-03-28 | 2019-06-25 | 中交路桥建设有限公司 | A method of pile foundation soil layer utmost tip resistance is tested using steel pile casting self-reaction force |
| CN109930634B (en) * | 2019-03-28 | 2021-03-02 | 中交路桥建设有限公司 | Method for testing ultimate lateral friction resistance of pile foundation soil layer by using self-reaction force of steel casing |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |
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| RJ01 | Rejection of invention patent application after publication |