CN110195446A - A kind of unit for single-pile vertical anti-pulling static test equipment - Google Patents
A kind of unit for single-pile vertical anti-pulling static test equipment Download PDFInfo
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- CN110195446A CN110195446A CN201910558164.9A CN201910558164A CN110195446A CN 110195446 A CN110195446 A CN 110195446A CN 201910558164 A CN201910558164 A CN 201910558164A CN 110195446 A CN110195446 A CN 110195446A
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- pile
- test equipment
- unit
- static test
- vertical anti
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 230000003068 static effect Effects 0.000 title claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 67
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- 239000002689 soil Substances 0.000 claims description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 230000007935 neutral effect Effects 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of unit for single-pile vertical anti-pulling static test equipment, belong to construction test apparatus field.Including counter force wall, it is arranged in by the jack between pile and counter force wall and is arranged in by the measuring device on pile, the output end direction of jack is vertically arranged by pile and with the axis for the treatment of peg；Measuring device includes the Monitoring on Earth Pressure element that displacement monitoring instrument, the displacement monitoring element being arranged on tested pile cages and the strain monitoring element of tested stake top is arranged in and is arranged on the outside of tested stake body, the present invention passes through the cooperation between different meter device, improve measurement accuracy and measurement efficiency, the present invention does not need transport large scale equipment during the test simultaneously, a large amount of manpower and material resources are saved, it can satisfy in the measurement of any landform, adaptability is wider.
Description
Technical field
The present invention relates to construction test apparatus fields, and in particular to a kind of unit for single-pile vertical anti-pulling static test equipment.
Background technique
In municipal works and architectural engineering, traditional load on pile foundation test method has accumulation load method, anchored pile-testing method.Accumulation load method is adopted
Stake top is withstood on oil jack to be further applied load, and the counter-force of jack is balanced therewith by the heap weight on reaction frame, general heap weight
Sandbag, concrete weight coating, steel ingot etc. may be selected.Anchored pile-testing method is also to withstand on stake top using oil jack to be further applied load, jack
Counter-force is transmitted to anchoring pile by reaction frame.Its existing main problem is: the former must solve the load of the even upper kiloton of several hundred tons
Source, stacking and transportation problem, the latter must be provided with more anchoring piles and counter-force crossbeam, and not only required cost is expensive, and the time is longer,
And the limitation vulnerable to tonnage and site condition, so that many large-tonnage stakes and the stake in special place (such as mountainous region, bridge pier) are held
Carrying power often cannot get accurate data, and the potentiality of foundation pile cannot be played rationally, this is a great problem of pile foundation field face.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of unit for single-pile vertical anti-pulling static test equipment, particular techniques
Scheme is as follows:
A kind of unit for single-pile vertical anti-pulling static test equipment including counter force wall, is arranged in by thousand between pile and counter force wall
Jin top and it is arranged in by the measuring device on pile, the output end of jack is towards by pile and vertical with the axis for the treatment of peg
Setting；Measuring device includes the displacement monitoring instrument that tested stake top is arranged in, the displacement being arranged on tested pile cages prison
Survey element and strain monitoring element and the Monitoring on Earth Pressure element being arranged on the outside of tested stake body.
When the output end of jack is to pressure is applied by pile in the present invention, the displacement monitor of tested stake top is set
Device carries out data observation to the displacement that the stake top by pile occurs in a compressed state, and the displacement on tested pile cages is arranged in
Monitoring element carries out data observation to the displacement that the pile body by pile occurs in a compressed state, is arranged on tested pile cages
The displacement that the pile body by pile is occurred in a compressed state of strain monitoring element carry out data observation, be arranged by pile stake
Monitoring on Earth Pressure element on the outside of body carries out pressure data observation to the soil body on the outside of tested stake body.
Preferably, displacement monitoring instrument include reference frame, the multiple groups being arranged in reference frame the first digital display displacement meter with
And the second digital display displacement meter in reference frame and being located above the first digital display displacement meter is set.
Preferably, the first digital display displacement meter and the coplanar setting of jack.
The present invention installs three largely in the two sides for being located at the horizontal force action plane of jack by pile and intermediate position
Number of passes shows displacement meter, and by one wide range digital display displacement meter of installation above pile horizontal force action plane, it is ensured that by pile
The influence of displacement measurement not being put to the test with other factors.
Preferably, the first digital display displacement meter and by between pile be equipped with connecting rod, the second digital display displacement meter with by pile
Between also be equipped with connecting rod.
The present invention will be transmitted to the first digital display displacement meter and the second digital display displacement meter by the displacement of pile by connecting rod
Place carries out data observation convenient for the first digital display displacement meter and the second digital display displacement meter.
Preferably, displacement monitoring element is made of the inclinometer pipe being symmetricly set on tested pile cages, inclinometer pipe with
The coplanar setting of neutral surface is bent by pile.
Inclinometer pipe is symmetricly set on the two sides of tested pile cages by the present invention, and by the way that inclinometer pipe to be bent with by pile
The coplanar setting of neutral surface improves the measurement accuracy and accuracy of inclinometer pipe.
Preferably, strain monitoring element is by being symmetricly set on far from by the multiple groups reinforcing rib meter in the main reinforcement of pile neutral axis
Composition.
Reinforcing rib meter is symmetricly set on of the invention to by pile far from improving in the main reinforcement by pile neutral axis by the present invention
Strain the accuracy of discharge observation.
Preferably, the embedded spacing of reinforcing rib meter is gradually decreased along the embedded direction by pile.
The present invention by by the embedded spacing of reinforcing rib meter along being gradually decreased by the embedded direction of pile, tested stake body most
Big moment of flexure depth areas increases the pre-buried quantity of reinforcing rib meter, to encrypt test section and to improve data accuracy.
Preferably, Monitoring on Earth Pressure element includes being symmetricly set on by the first soil pressure cell of pile two sides and setting
By the second soil pressure cell on front side of pile.
The present invention passes through second for being symmetricly set on the first soil pressure cell by pile two sides and being arranged on front side of by pile
Soil pressure cell cooperation, carries out comprehensive measurement to the soil by pile periphery convenient for the present invention.
Preferably, the embedded spacing of the first soil pressure cell is gradually decreased along the embedded direction by pile.
Preferably, the embedded direction of the second soil pressure cell is parallel with the embedded ground by pile.
The present invention enables experimenter by using different method for embedding to the first soil pressure cell and the second soil pressure cell
It accesses and improves measuring accuracy of the invention about the detailed data by pile ground pressure.
The invention has the following advantages:
When the output end of jack is to pressure is applied by pile in the present invention, the displacement monitor of tested stake top is set
Device carries out data observation to the displacement that the stake top by pile occurs in a compressed state, and the displacement on tested pile cages is arranged in
Monitoring element carries out data observation to the displacement that the pile body by pile occurs in a compressed state, is arranged on tested pile cages
The displacement that the pile body by pile is occurred in a compressed state of strain monitoring element carry out data observation, be arranged by pile stake
Monitoring on Earth Pressure element on the outside of body carries out pressure data observation to the soil body on the outside of tested stake body.The present invention passes through different surveys
Cooperation between measuring appratus improves measurement accuracy and measurement efficiency, while the present invention does not need to transport during the test
Large scale equipment has saved a large amount of manpower and material resources, can satisfy in the measurement of any landform, adaptability is wider.
Detailed description of the invention
Fig. 1 is the structural schematic diagram under use state of the present invention；
Fig. 2 is top view of the invention；
Fig. 3 is the partial enlarged view in Fig. 1 at A.
In figure: 1- counter force wall；2- jack；3- measuring device；4- displacement monitoring instrument；5- displacement monitoring element；6- is answered
Become monitoring element；7- Monitoring on Earth Pressure element；41- reference frame；42- the first digital display displacement meter；43- the second digital display displacement meter；8-
Connecting rod；51- inclinometer pipe；61- reinforcing rib meter；The first soil pressure cell of 71-；The second soil pressure cell of 72-.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Embodiment
Referring to Fig. 1 to Fig. 3, the present invention includes being arranged in by the counter force wall 1 of pile side and setting by pile and instead
Jack 2 between power wall 1 is embedded in ground by the pile body of pile and is pierced by ground by the stake top of pile.Counter force wall 1 is used
It is provided a supporting role in jack 2, enough pressure can be provided to by pile during the work time convenient for jack 2.Thousand
The pedestal on jin top 2 is fixedly connected towards counter force wall 1 and with counter force wall 1, and the output end of jack 2 is towards by pile and and treating peg
Axis be vertically arranged.
With further reference to Fig. 2 and Fig. 3, the invention also includes being arranged in by the measuring device 3 on pile, measuring device 3 is wrapped
Include the displacement monitoring instrument 4 that tested stake top is set, the displacement monitoring element 5 being arranged on tested pile cages and strain prison
The Monitoring on Earth Pressure element 7 surveying element 6 and being arranged on the outside of tested stake body.In the present invention output end of jack 2 to by
When pile applies pressure, the stake top by pile occurs in a compressed state for the displacement monitoring instrument 4 that tested stake top is arranged in
Displacement carry out data observation, the displacement monitoring element 5 on tested pile cages is set to the pile body by pile in compression shape
The displacement occurred under state carries out data observation, and the strain monitoring element 6 on tested pile cages is arranged in the pile body by pile
The displacement occurred in a compressed state carry out data observation, the Monitoring on Earth Pressure element 7 that is arranged on the outside of tested stake body to by
The soil body on the outside of pile pile body carries out pressure data observation.By the cooperation between different meter device improve measurement accuracy with
And measurement efficiency, while the present invention does not need transport large scale equipment during the test, has saved a large amount of manpower and material resources, Neng Gouman
It is enough to the measurement of any landform, adaptability is wider.
Displacement monitoring instrument 4 include reference frame 41, the first digital display displacement of multiple groups meter 42 for being arranged in reference frame 41 and
It is arranged in reference frame 41 and is located at the second digital display displacement meter 43 of 42 top of the first digital display displacement meter, the first digital display displacement meter 42
With the coplanar setting of jack 2.The present invention is at the two sides for being located at the horizontal force action plane of jack 2 by pile and intermediate position
Three wide range digital display displacement meters are installed, and by one wide range digital display displacement of installation above pile horizontal force action plane
Meter, it is ensured that influenced by not being put to the test for pile displacement measurement with other factors.First digital display displacement meter 42 and by between pile
Equipped with connecting rod 8, the second digital display displacement meter 43 and by between pile also be equipped with connecting rod 8.The present invention will be tested by connecting rod 8
The displacement of stake is transmitted at the first digital display displacement meter 42 and the second digital display displacement meter 43, convenient for the first digital display displacement meter 42 and the
Two digital display displacement meters 43 carry out data observation.
Displacement monitoring element 5 is made of the inclinometer pipe 51 being symmetricly set on tested pile cages, inclinometer pipe 51 with it is tested
The stake bending coplanar setting of neutral surface, inclinometer pipe 51 is symmetricly set on the two sides of tested pile cages by the present invention, and pass through by
Inclinometer pipe 51 is bent the coplanar setting of neutral surface with by pile, improves the measurement accuracy and accuracy of inclinometer pipe 51.Strain prison
Element 6 is surveyed by being symmetricly set on far from being formed by the multiple groups reinforcing rib meter 61 in the main reinforcement of pile neutral axis, by by reinforcing rib meter 61
It is symmetricly set on of the invention to the accuracy observed by pile dependent variable far from improving in the main reinforcement by pile neutral axis.Steel
The embedded spacing of muscle meter 61 is gradually decreased along the embedded direction by pile.The embedded spacing edge of reinforcing rib meter 61 is buried by pile
Set direction gradually decreases, and the pre-buried quantity of reinforcing rib meter 61 is increased in tested stake body maximal bending moment depth areas, to encrypt
Test section simultaneously improves data accuracy.
Monitoring on Earth Pressure element 7 includes being symmetricly set on the first soil pressure cell 71 by pile two sides and being arranged tested
Second soil pressure cell 72 of stake front side, by being symmetricly set on the first soil pressure cell 71 by pile two sides and being arranged by pile
Second soil pressure cell 72 of front side cooperates, and carries out comprehensive measurement to the soil by pile periphery convenient for the present invention.First soil
The embedded spacing of pressure cell 71 is gradually decreased along the embedded direction by pile, the embedded direction of the second soil pressure cell 72 with it is tested
The embedded ground of stake is parallel.The present invention uses different method for embedding to the first soil pressure cell 71 and the second soil pressure cell 72, makes
Experimenter can obtain improving measuring accuracy of the invention about the detailed data by pile ground pressure.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of unit for single-pile vertical anti-pulling static test equipment, which is characterized in that including counter force wall (1), setting by pile and instead
Jack (2) between power wall (1) and it is arranged in by the measuring device (3) on pile, the output end court of the jack (2)
It is vertically arranged to by pile and with the axis by pile；
The measuring device (3) includes the displacement monitoring instrument (4) that tested stake top is arranged in, is arranged on tested pile cages
Displacement monitoring element (5) and strain monitoring element (6) and the Monitoring on Earth Pressure element being arranged on the outside of tested stake body
(7)。
2. unit for single-pile vertical anti-pulling static test equipment according to claim 1, which is characterized in that the displacement monitoring instrument
It (4) include reference frame (41), multiple groups the first digital display displacement meter (42) being arranged on reference frame (41) and setting in reference frame
(41) the second digital display displacement meter (43) on and above the first digital display displacement meter (42).
3. unit for single-pile vertical anti-pulling static test equipment according to claim 2, which is characterized in that first digital display displacement
Count (42) and jack (2) coplanar setting.
4. unit for single-pile vertical anti-pulling static test equipment according to claim 3, which is characterized in that first digital display displacement
Count (42) with by between pile be equipped with connecting rod (8), the second digital display displacement meter (43) with by between pile also equipped with described in
Connecting rod (8).
5. unit for single-pile vertical anti-pulling static test equipment according to claim 1, which is characterized in that the displacement monitoring element
(5) it is made of the inclinometer pipe (51) being symmetricly set on tested pile cages, the inclinometer pipe (51) is bent neutrality with by pile
The coplanar setting in face.
6. unit for single-pile vertical anti-pulling static test equipment according to claim 1, which is characterized in that the strain monitoring element
(6) by being symmetricly set on far from being formed by the multiple groups reinforcing rib meter (61) in the main reinforcement of pile neutral axis.
7. unit for single-pile vertical anti-pulling static test equipment according to claim 6, which is characterized in that the reinforcing rib meter (61)
Embedded spacing is gradually decreased along the embedded direction by pile.
8. unit for single-pile vertical anti-pulling static test equipment according to claim 1, which is characterized in that the Monitoring on Earth Pressure member
Part (7) includes the second soil pressure for being symmetricly set on the first soil pressure cell (71) by pile two sides and being arranged on front side of by pile
Power box (72).
9. unit for single-pile vertical anti-pulling static test equipment according to claim 8, which is characterized in that first soil pressure cell
(71) embedded spacing is gradually decreased along the embedded direction by pile.
10. unit for single-pile vertical anti-pulling static test equipment according to claim 8, which is characterized in that second soil pressure
The embedded direction of box (72) is parallel with the embedded ground by pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558164.9A CN110195446A (en) | 2019-06-26 | 2019-06-26 | A kind of unit for single-pile vertical anti-pulling static test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558164.9A CN110195446A (en) | 2019-06-26 | 2019-06-26 | A kind of unit for single-pile vertical anti-pulling static test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110195446A true CN110195446A (en) | 2019-09-03 |
Family
ID=67755186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910558164.9A Pending CN110195446A (en) | 2019-06-26 | 2019-06-26 | A kind of unit for single-pile vertical anti-pulling static test equipment |
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| CN (1) | CN110195446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897938A (en) * | 2021-11-24 | 2022-01-07 | 内蒙古大学 | Pile system capable of dynamically monitoring interaction distribution force of pile and soil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836322A (en) * | 2017-03-31 | 2017-06-13 | 同济大学 | A kind of test device and its operating method of the experiment of screw anchor vertically pulling-resistant |
| CN107653917A (en) * | 2017-08-07 | 2018-02-02 | 同济大学 | A kind of test device and its operating method of the experiment of screw anchor horizontal force |
| CN210946909U (en) * | 2019-06-26 | 2020-07-07 | 四川冶金建筑工程质量检测有限公司 | Vertical resistance to plucking static test equipment of single pile |
-
2019
- 2019-06-26 CN CN201910558164.9A patent/CN110195446A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836322A (en) * | 2017-03-31 | 2017-06-13 | 同济大学 | A kind of test device and its operating method of the experiment of screw anchor vertically pulling-resistant |
| CN107653917A (en) * | 2017-08-07 | 2018-02-02 | 同济大学 | A kind of test device and its operating method of the experiment of screw anchor horizontal force |
| CN210946909U (en) * | 2019-06-26 | 2020-07-07 | 四川冶金建筑工程质量检测有限公司 | Vertical resistance to plucking static test equipment of single pile |
Non-Patent Citations (1)
| Title |
|---|
| 喻豪俊: "斜坡碎石土地基单桩水平承载特性研究", 中国优秀硕士学位论文全文数据库：工程科技Ⅱ辑, no. 3, pages 038 - 3210 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897938A (en) * | 2021-11-24 | 2022-01-07 | 内蒙古大学 | Pile system capable of dynamically monitoring interaction distribution force of pile and soil |
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