CN104775457A - Base pile pulling-resistant test device - Google Patents
Base pile pulling-resistant test device Download PDFInfo
- Publication number
- CN104775457A CN104775457A CN201510202120.4A CN201510202120A CN104775457A CN 104775457 A CN104775457 A CN 104775457A CN 201510202120 A CN201510202120 A CN 201510202120A CN 104775457 A CN104775457 A CN 104775457A
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- Prior art keywords
- gripper shoe
- screw rod
- fixed
- jack
- anchor ear
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Abstract
The invention provides a base pile pulling-resistant test device, which comprises a pulling-resistant pile, a cross beam and a jack, and also comprises a holding hoop and a support frame, wherein the holding hoop is arranged on the outer surface of a pulling-resistant pile and is fixedly connected with the pulling-resistant pile; the support frame comprises a first support plate and a connecting rod; the upper end of the connecting rod is fixedly arranged on the first support plate; the lower end of the connecting rod is fixedly arranged on the outer surface of the holding hoop; a cylinder body of the jack is fixedly arranged on the cross beam; the free end of the jack is upwards jacked on the lower surface of the first support plate. The base pile pulling-resistant test device has the advantages that the first support plate is jacked out in the ascending process of the free end of the jack, and the pulling-resistant pile can then be pulled out, so the whole pulling-resistant test is completed; the use of concrete and steel bars is avoided in the whole process, the test process is simplified, and the cost is reduced; in addition, the first support plate is adopted for bearing the force exerted by the jack, the pulling-resistant bearing force of the whole device is increased, in addition, the structure is simple, and the operation is fast and convenient.
Description
Technical field
The present invention relates to Foundation Design technical field, be specifically related to foundation pile pulling resistance testing device.
Background technology
Carrying out in Building Construction, the structure being positioned under ground portion can be subject to buoyancy upwards under the effect of water, for eliminate the impact on monolithic architecture framework of this buoyancy and the stake of beating uplift pile, as anchoring pile, anti-floating pile etc.Commercially now all insert several reinforcing bars in the hollow part of uplift pile for the pullout tests of uplift pile, then tamp with concrete, and reserve the reinforcing bar of certain length, after its consolidation, the reinforcement welding exposed is completed pullout tests at foundation pile pulling resistance testing device.But this foundation pile pulling resistance testing device needs fill concrete, troublesome poeration and cost is high; The reinforcing bar adopted in addition also also exists the shortcoming that structure is insecure, bearing capacity is inadequate, easily occurs situation about pulling, affects the carrying out of pullout tests.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide foundation pile pulling resistance testing device, syndeton is simple, swift to operate, improves whole device anti-pulling capacity, test can be completed on request.
For achieving the above object, the present invention adopts following technical scheme:
Foundation pile pulling resistance testing device, comprises uplift pile, crossbeam and jack, and this foundation pile pulling resistance testing device also comprises anchor ear and bracing frame, and anchor ear is set in the external surface of uplift pile and is fixedly connected with uplift pile; Bracing frame comprises the first gripper shoe and connecting rod, and the upper end of connecting rod is fixed in the first gripper shoe, and the lower end of connecting rod is fixed on the external surface of anchor ear; The cylinder body of jack is fixed on crossbeam, and the free end of jack is upwards resisted against the soffit of the first gripper shoe.
Preferably, bracing frame also comprises and is arranged at the second gripper shoe below the first gripper shoe and parallel with the first gripper shoe; Connecting rod comprises the first screw rod and the second screw rod, and the upper end of the first screw rod is fixed in the first gripper shoe, and the lower end of the first screw rod is fixed in the second gripper shoe; The upper end of the second screw rod is fixed in the second gripper shoe, and the lower end of the second screw rod is fixed on the external surface of anchor ear.
Preferably, the upper end cross-under of the first screw rod in the first gripper shoe in and be locked in the first gripper shoe by one first nut assembly, the lower end cross-under of the first screw rod is in the second gripper shoe and be locked in the second gripper shoe by one second nut assembly.
Preferably, the upper end of the second screw rod to be connected in the second gripper shoe and to be locked in the second gripper shoe by one the 3rd nut assembly.
Preferably, the lower end of the second screw rod is welded in the external surface of anchor ear.
Preferably, anchor ear is docked by the left hoop plate all in semi-annular shape and right hoop plate and is formed.
Preferably, left hoop plate offers multiple first screwed holes along the arrangement of oneself height direction, right hoop plate offers multiple second screwed hole corresponding with the first screwed hole, in the first screwed hole, cross-under has the bolt be bolted in the second screwed hole.
Beneficial effect of the present invention is:
Compared to prior art, foundation pile pulling resistance testing device of the present invention, directly anchor ear is set at the external surface of uplift pile, be connected with the first gripper shoe on bracing frame by connecting rod fixing on anchor ear, so, uplift pile only need just can pull up by the free end of jack by the first gripper shoe jack-up in the process risen, complete whole pullout tests, whole process avoids the use of concrete and rebar, simplifies process of the test, cost-saving; In addition, the first gripper shoe of employing carries the power of jack applying, strengthens the anti-pulling capacity of whole device, and structure is simple, swift to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is hooping structure schematic diagram of the present invention.
Wherein, 100, uplift pile; 200, crossbeam; 300, jack; 410, the first gripper shoe; 420, the first screw rod; 421, the first nut assembly; 422, the second nut assembly; 430, the second gripper shoe; 500, anchor ear; 510, the second screw rod; 511, the 3rd nut assembly; 520, left hoop plate; 521, the first screwed hole; 530, right hoop plate; 531, the second screwed hole.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the present invention is described further:
Foundation pile pulling resistance testing device as shown in Figure 1, 2, comprise uplift pile 100, crossbeam 200, jack 300, anchor ear 500 and bracing frame, anchor ear 500 is sleeved on the external surface of uplift pile 100, and is fixedly connected with uplift pile 100; In addition, this bracing frame comprises the first gripper shoe 410 and connecting rod, and make the upper end of this connecting rod be fixed in the first gripper shoe 410, the lower end of connecting rod is fixed on anchor ear 500; Meanwhile, the cylinder body of above-mentioned jack 300 is fixed on crossbeam 200, the free end of jack 300 is made can upwards to support in the lower surface of the first gripper shoe 410, so, when carrying out pullout tests, start jack 300, by the first gripper shoe 410 jack-up, just the anchor ear 500 be connected with the first gripper shoe 410 by connecting rod can be taken up, and be fixed together due to anchor ear 500 and uplift pile 100, this uplift pile 100 also can be pulled up along with anchor ear 500 together.
Concrete, in the present embodiment, above-mentioned bracing frame also can comprise the second gripper shoe 430, and this second gripper shoe 430 is positioned at the below of the first gripper shoe 410 and be arranged in parallel with the first gripper shoe 410, in addition, above-mentioned connecting rod specifically comprises the first screw rod 420 and the second screw rod 510, the upper end of this first screw rod 420 is fixed in the first gripper shoe 410, and the lower end of the first screw rod 420 is fixed in the second gripper shoe 430, in addition, the upper end of this second screw rod 510 is made to be fixed in the second gripper shoe 430, the lower end of the second screw rod 510 is fixed on the external surface of anchor ear 500, jack 300 by the first gripper shoe 410 upwards jack-up time, the second gripper shoe 430 connected by the first screw rod 420 can be driven upwards movable, under the effect of the second gripper shoe 430, the anchor ear 500 connected by the second screw rod 510 can along with being upwards pulled up together, the support frame structure consisted of two screw rods and two gripper shoes can be more stable, in addition, second gripper shoe 430 can make the stressed more even of whole device, improve the anti-pulling capacity of whole device.
Further, the upper end cross-under of the first screw rod 420 in the first gripper shoe 410, and arranges one first nut assembly 421 in the upper end of the first screw rod 420, in order to by the upper end locking of the first screw rod 420 in the first gripper shoe 410.Same, the lower end cross-under of the first screw rod 420, in the second gripper shoe 430, arranges one second nut assembly 422 in the lower end of the first screw rod 420 accordingly, in order to be locked in the second gripper shoe 430 lower end of the first screw rod 420.Pass through said structure, two gripper shoes and two screw rods are fixed in the mode be spirally connected, facilitates the installation and removal of whole device on the one hand, on the other hand, being fixed by the mode be spirally connected to make total more stable, not easily occurs situation about getting loose when carrying out pullout tests.
More excellent, the upper end of above-mentioned second screw rod 510 also cross-under in the second gripper shoe 430, and one the 3rd nut assembly 511 is set in the upper end of the second screw rod 510, by the upper end locking of the second screw rod 510 in the second gripper shoe 430, further can reinforce the syndeton of whole device like this.Further, the lower end of the second screw rod 510 is welded on the external surface of anchor ear 500, the lower end of the second screw rod 510 is fixed on anchor ear 500.
Certainly, above-mentioned connecting rod is directly replaced with a screw rod and also can be reached the effect above-mentioned anchor ear 500 and the first gripper shoe 410 coupled together; In addition, the fixed form of above-mentioned first screw rod 420 and the first gripper shoe 410 and the fixed form of the second screw rod 510 and the second gripper shoe 430 all can adopt and be welded and fixed.
Preferably, above-mentioned anchor ear 500 can be docked by the left hoop plate 520 all in semi-annular shape and right hoop plate 530 and be formed, and when being fixed in uplift pile 100 by anchor ear 500, can rotate according to the size of resistance to plucking plate, convenient installation.Further, left hoop plate 520 offers multiple first screwed hole 521, multiple second screwed hole 531 corresponding with the first screwed hole 521 is offered accordingly on right hoop plate 530, the short transverse of these screwed holes all along hoop plate is evenly distributed, so in the first screwed hole 521, cross-under has the bolt be bolted in the second screwed hole 531, just left hoop plate 520 can be fixedly connected with right hoop plate 530, left and right hoop plate 530 be fixed in the mode be spirally connected, easy disassembly.Certainly, hoop plate 530 in left and right also can adopt welding to be fixed.
Foundation pile pulling resistance testing device in the present embodiment, whole device adopts the mode be spirally connected to be fixed, easy disassembly on the one hand, and can reinforce the connection structure on the other hand, prevents the phenomenon that gets loose.In addition, whole pullout tests process, by the free end of jack 300 by the first gripper shoe 410 upwards jack-up, thus drive the anchor ear 500 being fixed on connecting rod lower end upwards movable, and then the uplift pile 100 be fixed together with anchor ear 500 is pulled up, whole process operation is simple, without the need to fill concrete and reinforcing bar, cost-saving.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (7)
1. foundation pile pulling resistance testing device, comprises uplift pile, crossbeam and jack, it is characterized in that, this foundation pile pulling resistance testing device also comprises anchor ear and bracing frame, and anchor ear is set in the external surface of uplift pile and is fixedly connected with uplift pile; Bracing frame comprises the first gripper shoe and connecting rod, and the upper end of connecting rod is fixed in the first gripper shoe, and the lower end of connecting rod is fixed on the external surface of anchor ear; The cylinder body of jack is fixed on crossbeam, and the free end of jack is upwards resisted against the soffit of the first gripper shoe.
2. foundation pile pulling resistance testing device as claimed in claim 1, is characterized in that, bracing frame also comprises and is arranged at the second gripper shoe below the first gripper shoe and parallel with the first gripper shoe; Connecting rod comprises the first screw rod and the second screw rod, and the upper end of the first screw rod is fixed in the first gripper shoe, and the lower end of the first screw rod is fixed in the second gripper shoe; The upper end of the second screw rod is fixed in the second gripper shoe, and the lower end of the second screw rod is fixed on the external surface of anchor ear.
3. foundation pile pulling resistance testing device as claimed in claim 2, it is characterized in that, the upper end cross-under of the first screw rod in the first gripper shoe in and be locked in the first gripper shoe by one first nut assembly, the lower end cross-under of the first screw rod is in the second gripper shoe and be locked in the second gripper shoe by one second nut assembly.
4. foundation pile pulling resistance testing device as claimed in claim 2, is characterized in that, the upper end of the second screw rod to be connected in the second gripper shoe and to be locked in the second gripper shoe by one the 3rd nut assembly.
5. foundation pile pulling resistance testing device as claimed in claim 2, it is characterized in that, the lower end of the second screw rod is welded in the external surface of anchor ear.
6. foundation pile pulling resistance testing device as claimed in claim 1, is characterized in that, anchor ear is docked by the left hoop plate all in semi-annular shape and right hoop plate and formed.
7. foundation pile pulling resistance testing device as claimed in claim 6, it is characterized in that, left hoop plate offers multiple first screwed holes along the arrangement of oneself height direction, right hoop plate offers multiple second screwed hole corresponding with the first screwed hole, in the first screwed hole, cross-under has the bolt be bolted in the second screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202120.4A CN104775457A (en) | 2015-04-24 | 2015-04-24 | Base pile pulling-resistant test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202120.4A CN104775457A (en) | 2015-04-24 | 2015-04-24 | Base pile pulling-resistant test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104775457A true CN104775457A (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510202120.4A Pending CN104775457A (en) | 2015-04-24 | 2015-04-24 | Base pile pulling-resistant test device |
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| CN (1) | CN104775457A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256846A (en) * | 2015-10-14 | 2016-01-20 | 常州华厦建设工程质量检测有限公司 | Connecting device special for single-pile vertical pulling test |
| CN105971038A (en) * | 2016-07-21 | 2016-09-28 | 淮安市建筑科学研究院有限公司 | Pile-anchor-combing-type foundation-basis compression-resistance static-load test system |
| WO2017107959A1 (en) * | 2015-12-22 | 2017-06-29 | 广东中科华大工程技术检测有限公司 | Simple connection device for use in vertical uplift resistance static load test of foundation pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0961267A (en) * | 1995-08-29 | 1997-03-07 | Geotop Corp | Post-treatment method of ground load test in foundation pile and jack device used for the purpose |
| CN101831925A (en) * | 2010-06-01 | 2010-09-15 | 张百全 | Detection method for static load of pile foundation |
| CN103031860A (en) * | 2012-12-14 | 2013-04-10 | 广东省建筑科学研究院 | Pipe pile vertical static load testing connection device, and testing system and method using same |
| CN204112377U (en) * | 2014-08-21 | 2015-01-21 | 马鞍山十七冶工程科技有限责任公司 | The draw-off gear of pile for prestressed pipe vertically pulling-resistant static loading test |
| CN204530801U (en) * | 2015-04-24 | 2015-08-05 | 广东天信电力工程检测有限公司 | Foundation pile pulling resistance testing device |
-
2015
- 2015-04-24 CN CN201510202120.4A patent/CN104775457A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0961267A (en) * | 1995-08-29 | 1997-03-07 | Geotop Corp | Post-treatment method of ground load test in foundation pile and jack device used for the purpose |
| CN101831925A (en) * | 2010-06-01 | 2010-09-15 | 张百全 | Detection method for static load of pile foundation |
| CN103031860A (en) * | 2012-12-14 | 2013-04-10 | 广东省建筑科学研究院 | Pipe pile vertical static load testing connection device, and testing system and method using same |
| CN204112377U (en) * | 2014-08-21 | 2015-01-21 | 马鞍山十七冶工程科技有限责任公司 | The draw-off gear of pile for prestressed pipe vertically pulling-resistant static loading test |
| CN204530801U (en) * | 2015-04-24 | 2015-08-05 | 广东天信电力工程检测有限公司 | Foundation pile pulling resistance testing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256846A (en) * | 2015-10-14 | 2016-01-20 | 常州华厦建设工程质量检测有限公司 | Connecting device special for single-pile vertical pulling test |
| WO2017107959A1 (en) * | 2015-12-22 | 2017-06-29 | 广东中科华大工程技术检测有限公司 | Simple connection device for use in vertical uplift resistance static load test of foundation pile |
| CN105971038A (en) * | 2016-07-21 | 2016-09-28 | 淮安市建筑科学研究院有限公司 | Pile-anchor-combing-type foundation-basis compression-resistance static-load test system |
| CN105971038B (en) * | 2016-07-21 | 2017-11-24 | 淮安市建筑科学研究院有限公司 | Heap anchor convolution foundation compressive static load test system |
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Application publication date: 20150715 |