CN107447796A - Static load test pile counter force system - Google Patents

Static load test pile counter force system Download PDF

Info

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
Authority
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
Application number
CN201710686160.XA
Other languages
Chinese (zh)
Inventor
何俊彪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Harbour Engineering Co Ltd
Original Assignee
China Harbour Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Harbour Engineering Co Ltd filed Critical China Harbour Engineering Co Ltd
Priority to CN201710686160.XA priority Critical patent/CN107447796A/en
Publication of CN107447796A publication Critical patent/CN107447796A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D33/00Testing 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

Static load test pile counter force system
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)

  1. 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. 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. 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. 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.
CN201710686160.XA 2017-08-11 2017-08-11 Static load test pile counter force system Pending CN107447796A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
EP2248951B1 (en) Method and device for determining the axial force progression in a pressure-grouted anchor
CN107447796A (en) Static load test pile counter force system
US8931236B2 (en) System for anchoring a load
DE102006006242A1 (en) Execution method for static load test at stakes or columns, involves displacing measuring point, opposite reference measuring point independent of counter bearings, connected with stake head or column head
Ghomi et al. Seismic performance of GFRP-RC exterior beam–column joints with lateral beams
CN103791795B (en) Bridge static loading experiment displacement monitor
KR101166139B1 (en) Apparatus and method for horizontal load test of strip foundation
Borello et al. Experimental and analytical investigation of bridge timber piles under eccentric loads
CN105002914B (en) Deformation-controllable prestressed concrete cantilever supporting structure and design and construction method thereof
US9783948B2 (en) Root key type pressure bearing mechanism in anchor hole, root key type anchor cable and anchor hole grouting method
Grgić et al. Stirrups effect on the behavior of concrete columns during an earthquake: Auswirkung der Haltebügel auf das Verhalten von Betonsäulen bei Erdbeben
CN205805019U (en) Column underpinning device
Aziz et al. Shear strength properties of Hilti plain and indented strand cable bolts
CN106320392B (en) A kind of pile foundation test loading device of large-tonnage
CN104790421A (en) Variable rigidity energy consumption type joint for connecting tubular pile head with bearing platform
US20080008539A1 (en) Void form for constructing post-tensioned foundation piles
Mashal et al. High-damage and low-damage seismic design technologies for accelerated bridge construction
CN207739130U (en) A kind of concrete-filled double skin steel tube bridge pier
JP2002256571A (en) Reconstructing method for building, using method for existing pile and building
CN206941604U (en) The double shaped steel supporting construction of soft soil foundation pit side wall
CN102561212A (en) Method for strengthening vertical crack of single-pillar concrete pier
CN108104146A (en) Prevent the pre-stressed steel pipe concrete tension binder and construction method that cushion cap shifts
KR100954501B1 (en) Load testing apparatus for pile
Larkin et al. Unbonded prestressed columns for earthquake resistance
JP6352167B2 (en) Exposed type column base structure

Legal Events

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

RJ01 Rejection of invention patent application after publication