CN210712987U - Simple recyclable static load test pile steel pile cap - Google Patents
Simple recyclable static load test pile steel pile cap Download PDFInfo
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- CN210712987U CN210712987U CN201921616644.8U CN201921616644U CN210712987U CN 210712987 U CN210712987 U CN 210712987U CN 201921616644 U CN201921616644 U CN 201921616644U CN 210712987 U CN210712987 U CN 210712987U
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- static load
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 72
- 239000010959 steel Substances 0.000 title claims abstract description 72
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 230000003068 static effect Effects 0.000 title claims abstract description 22
- 239000004576 sand Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000004567 concrete Substances 0.000 abstract description 9
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a simple and easy experimental stake steel pile cap of static load of circulated use, characterized by: the steel pile cap is formed by a pair of semicircular steel cylinders which are encircled and tightly hooped at the upper end of the foundation pile to form a foundation pile upper end steel hoop, the top edge of the foundation pile upper end steel hoop is not lower than the height of the top plane of the foundation pile, an end steel plate is placed on the foundation pile upper end steel hoop, and the load test equipment is installed on the end steel plate. The utility model discloses can effectively protect the pile head, reuse after its steel pile cap can be dismantled reduces the wasting of resources, and its preparation is simple and convenient, high-efficient for the installation, is particularly useful for multiple pile shapes such as drilling bored concrete pile, CFG stake and prestressed pipe pile as static load test's pile bolck enhancement processing apparatus.
Description
Technical Field
The utility model relates to a static load test stake steel pile cap, the more specifically multiple pile types such as specially adapted drilling bored concrete pile, CFG stake and prestressed pipe pile when as static load test stake top enhancement processing with static load test stake steel pile cap that says so.
Background
Pile testing is carried out before pile foundation engineering construction, and after the construction of the engineering piles is finished, 1% of engineering piles are extracted according to standard requirements and are not less than 3 engineering piles to be subjected to static load test detection. Before static load tests are carried out on all test piles such as cast-in-situ bored piles, CFG piles, prestressed pipe piles and the like, in order to ensure that pile heads are not crushed, the pile heads are required to be reinforced. The traditional method is to add reinforcing steel bars, stirrups and reinforcing steel bar meshes in the range of 0.5-1 m of a pile head, and then pour concrete with the strength 1 grade higher than that of a pile body to form a reinforced concrete pouring pile cap, and the following defects exist: firstly, the processes of formwork support, steel bar mesh manufacturing, concrete pouring and the like are complex, and the efficacy is low; the concrete strength maintenance period is long, and the construction period is delayed; thirdly, the fertilizer cannot be repeatedly applied; fourthly, the waste of steel and concrete is more; fifthly, chiseling is needed after detection is finished, which is labor-consuming and time-consuming.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a for avoiding above-mentioned prior art not enough, provide a simple and easy experimental stake steel pile cap of static load of circulated use to be applicable to multiple pile forms such as drilling bored concrete pile, CFG stake and prestressed pipe pile and strengthen processing apparatus as the pile bolck of static load test.
The utility model discloses a solve the problem and adopt following technical scheme:
the utility model discloses simple and easy cyclic use's static load test stake steel pile cap's characteristics are: the steel pile cap is characterized in that a pair of semicircular steel cylinders embraces and tightly hoops the upper end of the foundation pile to form a steel hoop at the upper end of the foundation pile, the top edge of the steel hoop at the upper end of the foundation pile is not lower than the height of the top plane of the foundation pile, an end steel plate is placed on the steel hoop at the upper end of the foundation pile, and load test equipment is installed on the end steel plate.
The utility model discloses simple and easy cyclic use's static load test stake steel pile cap's characteristics also lie in: and setting the top edge of the steel hoop at the upper end of the foundation pile to be 2-3mm higher than the top plane of the foundation pile, and densely filling yellow sand between the end steel plate and the top plane of the foundation pile.
The utility model discloses simple and easy cyclic use's static load test stake steel pile cap's characteristics also lie in: wing plates are fixedly connected to two sides of the semicircular steel cylinder respectively, through holes are formed in the wing plates, and reinforcing rib plates are arranged between the wing plates and the semicircular steel cylinder; and the pair of the surrounding semicircular steel cylinders are tightly connected in the through hole by utilizing a high-strength bolt and a high-strength nut.
Compared with the prior art, the utility model discloses beneficial effect embodies:
1. the semi-circular steel cylinder in the utility model is processed and welded with the wing plate, and the like, and is formed in one step in a production workshop according to the pile diameter requirement, the manufacture is simple, the process is simple and convenient, the speed is high, and the safety and the high efficiency are realized, especially for the installation of a test pile head;
2. in the concrete application of the utility model, the test pile can be disassembled and recovered after the test pile load is applied and unloaded, and can be repeatedly used, thereby avoiding resource waste;
3. compared with the existing reinforced concrete cast-in-place pile cap, the utility model greatly shortens the construction period, reduces the use of steel, concrete and manpower, saves resources and is green and environment-friendly;
4. the utility model discloses in set up the topside of foundation pile upper end steel staple bolt and exceed the top plane of foundation pile to closely knit packing yellow sand between them, make pile tip atress even, effectively avoid the stress concentration that pile tip top arouses because of the unevenness, and then cause the pile tip to be crushed, stable in structure is reliable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation structure of the steel anchor ear at the upper end of the foundation pile of the utility model;
reference numbers in the figures: 1 steel staple bolt in the foundation pile, 2 pterygoid lamina, 3 reinforced rib plate, 4 high-strength bolt, 5 high-strength nut, 6 end board, 7 foundation piles, 8 yellow sand.
Detailed Description
The simple recyclable static load test pile steel pile cap in the embodiment has the following structural form: the steel pile cap is formed by a pair of semicircular steel cylinders which are encircled and tightly hooped at the upper end of a foundation pile 7, a steel hoop 1 at the upper end of the foundation pile is formed, the top edge of the steel hoop 1 at the upper end of the foundation pile is not lower than the height of the top plane of the foundation pile 7, an end steel plate 6 is placed on the steel hoop 1 at the upper end of the foundation pile, and load test equipment is installed on the end steel plate 6.
In this embodiment, the top edge of the steel hoop 1 at the upper end of the foundation pile is 2-3mm higher than the top plane of the foundation pile 7, the yellow sand 8 is densely filled between the end steel plate 6 and the top plane of the foundation pile 7, and the yellow sand 8 is uniformly compacted at the initial stage of the static pressure test, so that the stress of the pile end is uniform, and therefore, the stress concentration caused by unevenness at the top of the pile end is effectively avoided, and the pile end is crushed.
In the embodiment, in order to facilitate disassembly and assembly, wing plates 2 are respectively and fixedly connected to two sides of the semicircular steel cylinder, through holes are formed in the wing plates 2, and reinforcing rib plates 3 are arranged between the wing plates 2 and the semicircular steel cylinder; a pair of semicircular steel cylinders which are embraced are tightly connected in the through hole by a high-strength bolt 4 and a high-strength nut 5.
In specific implementation, the semicircular steel cylinder is cut into a pair of semicircular cylinders after a steel plate is rolled into a cylinder in a factory, and three through holes are vertically formed in the wing plate and used for installing shear bolts; the types of the semicircular steel cylinder, the wing plate, the end steel plate, the high-strength bolt, the high-strength nut and the like are set according to the size of the pile diameter and the bearing capacity.
In the foundation pile static load test, before the last section of foundation pile test, the steel pile cap of the utility model is arranged at the pile top of the precast pile, when the static load test is carried out, the steel pile cap is utilized to restrain the top of the foundation pile, the damage of larger load to the top of the foundation pile is effectively avoided, after the static load test is finished, the earth around the test pile is excavated to the elevation of the lower opening of the steel pile cap, and the high-strength bolt and the high-strength nut are removed, so that the steel pile cap can be detached; and the subsequent second detection pile can be repeatedly used, so that the resource waste is avoided.
Claims (3)
1. The utility model provides a simple and easy experimental stake steel pile cap of static load of circulated use which characterized by: the steel pile cap is characterized in that a pair of semicircular steel cylinders embraces and tightly hoops the upper end of a foundation pile (7) to form a foundation pile upper end steel hoop (1), the top edge of the foundation pile upper end steel hoop (1) is not lower than the height of the top plane of the foundation pile (7), an end steel plate (6) is placed on the foundation pile upper end steel hoop (1), and load test equipment is installed on the end steel plate (6).
2. The simple recyclable static load test pile steel pile cap as claimed in claim 1, which is characterized in that: and the top edge of the steel anchor ear (1) at the upper end of the foundation pile is arranged to be 2-3mm higher than the top plane of the foundation pile (7), and yellow sand (8) is densely filled between the end steel plate (6) and the top plane of the foundation pile (7).
3. The simple recyclable static load test pile steel pile cap as claimed in claim 1 or 2, which is characterized in that: wing plates (2) are fixedly connected to two sides of the semicircular steel cylinder respectively, through holes are formed in the wing plates (2), and reinforcing rib plates (3) are arranged between the wing plates (2) and the semicircular steel cylinder; and a pair of embracing semicircular steel cylinders are tightly connected in the through holes by high-strength bolts (4) and high-strength nuts (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921616644.8U CN210712987U (en) | 2019-09-26 | 2019-09-26 | Simple recyclable static load test pile steel pile cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921616644.8U CN210712987U (en) | 2019-09-26 | 2019-09-26 | Simple recyclable static load test pile steel pile cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210712987U true CN210712987U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921616644.8U Active CN210712987U (en) | 2019-09-26 | 2019-09-26 | Simple recyclable static load test pile steel pile cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210712987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529816A (en) * | 2021-07-07 | 2021-10-22 | 中国科学院武汉岩土力学研究所 | In-situ test method for pile-soil load sharing ratio of CFG pile composite foundation |
-
2019
- 2019-09-26 CN CN201921616644.8U patent/CN210712987U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529816A (en) * | 2021-07-07 | 2021-10-22 | 中国科学院武汉岩土力学研究所 | In-situ test method for pile-soil load sharing ratio of CFG pile composite foundation |
| CN113529816B (en) * | 2021-07-07 | 2022-05-03 | 中国科学院武汉岩土力学研究所 | In-situ test method for pile-soil load sharing ratio of CFG pile composite foundation |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Simple and Reusable Steel Pile Cap for Static Load Test Piles Effective date of registration: 20231221 Granted publication date: 20200609 Pledgee: Huishang Bank Co.,Ltd. Hefei Xiyou road sub branch Pledgor: Anhui Yonghao Construction Engineering Co.,Ltd. Registration number: Y2023980073389 |