CN214090014U - Vertical resistance to compression bearing capacity testing arrangement of single pile - Google Patents
Vertical resistance to compression bearing capacity testing arrangement of single pile Download PDFInfo
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- CN214090014U CN214090014U CN202022162757.4U CN202022162757U CN214090014U CN 214090014 U CN214090014 U CN 214090014U CN 202022162757 U CN202022162757 U CN 202022162757U CN 214090014 U CN214090014 U CN 214090014U
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Abstract
The utility model discloses a vertical resistance to compression bearing capacity testing arrangement of single pile, including the pile head, the top of pile head is equipped with a plurality of jacks, and horizontally bearing platform has been placed at the top of jack, bears a plurality of balancing weights on the bearing platform, is equipped with between pile head and the jack and bears the base, bears the base and includes horizontally last backup pad and bottom suspension fagging, goes up and is connected with vertical support column between backup pad and the bottom suspension fagging, and the outer fringe of bottom suspension fagging is equipped with a plurality of hinged-supports, it is connected with the telescopic link that can be at vertical in-plane internal rotation to rotate on the hinged-support, and the front end of telescopic link articulates has the grip block with. The edge of the bearing base is provided with the stretching rod and the clamping plate, so that the bearing base can be firmly fixed on the pile head in the test process, and the stability is improved; 4 jacks are arranged on the testing device, and the 4 jacks are synchronously linked to work, so that the safety and the balance degree in the testing process can be improved.
Description
Technical Field
The utility model belongs to the technical field of building engineering detects, concretely relates to vertical resistance to compression bearing capacity testing arrangement of single pile.
Background
The foundation base refers to an enlarged part of a house based on a foundation, in which walls or columns are buried in the ground. The design and inspection of foundation foundations is an important ring of work for construction engineers. The foundation detection comprises foundation type, material, size and embedding depth; the degree of cracking, corrosion or damage to the foundation; strength grade of the base material; inclination, bending, twisting, etc. of the foundation; the penetration depth of the pile foundation, the condition of the bearing stratum, the quality of the pile body and the like. The static load test of the pile foundation is a technology for detecting the bearing capacity of the pile foundation in engineering. In the aspect of determining the ultimate bearing capacity of a single pile, the method is the most accurate and reliable test method at present, and is used for judging whether a certain dynamic load test method is mature or not, and the comparison error of static load test results is taken as the basis. Therefore, the single pile static load test is listed as the first place in each foundation design and treatment specification. The loading method for carrying out the static load test of the pile foundation comprises a pile loading method, an anchor pile method and a self-balancing method.
Wherein, pile-loading method adopts to pile usually and carries counter-force beam device, uses the girder steel to set up a bearing platform at the pile top, stacks a plurality of balancing weight on it, makes the balancing weight can provide hundreds of tons of pressure to the bearing platform, then has placed the jack between pile head and bearing platform, through the jack with bearing platform jack-up to pile head department is applyed to the power with the balancing weight, pressurizes the pile head. The bearing platform is set to be square or rectangular according to needs, and meanwhile, a proper number of jacks are selected to be matched with the bearing platform to perform tests according to the diameter size of the pile head. The existing stacking method test has the problems that a plurality of jacks are inconvenient to place and the linkage of the plurality of jacks is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vertical resistance to compression bearing capacity testing arrangement of single pile, aim at solve the above-mentioned problem that exists in the aspect of the vertical resistance to compression bearing capacity test of current single pile.
Therefore, the utility model adopts the following technical scheme:
the utility model provides a vertical resistance to compression bearing capacity testing arrangement of single pile, includes the pile head, and the top of pile head is equipped with a plurality of jacks, and bearing platform has been placed at the top of jack, bears a plurality of balancing weights on the bearing platform, be equipped with between pile head and the jack and bear the base, bear the base and include that horizontally go up backup pad and bottom suspension fagging are connected with vertical support column between last backup pad and the bottom suspension fagging, the outer fringe of bottom suspension fagging is equipped with a plurality of hinged-supports, it is connected with the telescopic link that can be at vertical in-plane internal rotation to rotate on the hinged-support, the front end of telescopic link articulate have with telescopic link vertically grip block, a plurality of jack synchronous linkage.
Furthermore, the jacks comprise four jacks, an oil tank, a hydraulic pump, a synchronous shunt motor and an electromagnetic directional valve are connected to the jacks, a main high-pressure oil pipe is connected between an oil outlet of the oil tank and an oil inlet of the hydraulic pump, a power input end of the hydraulic pump is in transmission connection with a power output end of the synchronous shunt motor, and the hydraulic pump is respectively connected with the four jacks through four first branch high-pressure oil pipes; the main high-pressure oil pipe is provided with an electromagnetic directional valve and a one-way throttle valve along the flowing direction of the hydraulic oil, and the first branch high-pressure oil pipe is provided with a speed-limiting valve and a hydraulic control one-way valve along the flowing direction of the hydraulic oil; the hydraulic control one-way valve is connected with the oil tank through a hydraulic control oil return oil way, the four speed limiting valves are respectively connected with an oil return port of the electromagnetic directional valve through second branch high-pressure oil pipes, and the four second branch high-pressure oil pipes are provided with liquid supplementing one-way valves.
Furthermore, the telescopic rod is connected with a locking bolt.
Furthermore, a plurality of rib plates are arranged between the upper supporting plate and the lower supporting plate.
And furthermore, the four jacks are respectively provided with a pressure sensor, and the pile body is provided with a dial indicator for measuring the settlement of the pile body.
The beneficial effects of the utility model reside in that: the edge of the bearing base is provided with the stretching rod and the clamping plate, so that the bearing base can be firmly fixed on the pile head in the test process, and the stability is improved; 4 jacks are arranged on the testing device, and the 4 jacks are synchronously linked to work, so that the safety and the balance degree in the testing process can be improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the load-bearing base of the present invention;
in the figure: 1-pile head, 2-jack, 3-bearing platform, 4-auxiliary support, 5-pressure sensor, 6-dial indicator, 7-bearing base, 71-upper support plate, 72-lower support plate, 73-support column, 74-ribbed plate, 75-hinged support, 76-telescopic rod, 77-locking bolt and 78-clamping plate.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in figures 1 and 2, the single-pile vertical compression-resistant bearing capacity testing device comprises a bearing platform 3, an auxiliary support 4, a balancing weight, a bearing base 7 and a jack 2. Bear base 7 and place on pile head 1, bear base 7 and include that bracing plate 71 and bottom suspension fagging 72 are gone up to the horizontally, go up and be connected with vertical support column 73 between bracing plate 71 and the bottom suspension fagging 72, the outside of support column 73 is equipped with a plurality of ribbed slabs 74 that are used for strengthening and bear base 7 intensity. The outer edge of the lower support plate 72 is provided with a plurality of hinge supports 75, and the hinge supports 75 are uniformly arranged along the circumferential direction at intervals. The hinged support 75 is rotatably connected with a telescopic rod 76 which extends outwards and can rotate in a vertical plane, the front end of the telescopic rod 76 is hinged with a clamping plate 78 which is perpendicular to the telescopic rod 76, and the telescopic rod 76 is further connected with a locking bolt 77.
The top of the bearing base 7 is provided with 4 jacks 2 which are annularly arranged, the testing device also comprises an oil tank, a hydraulic pump, a synchronous shunt motor and an electromagnetic directional valve, a total high-pressure oil pipe is connected between an oil outlet of the oil tank and an oil inlet of the hydraulic pump, a power input end of the hydraulic pump is in transmission connection with a power output end of the synchronous shunt motor, and the hydraulic pump is respectively connected with the four jacks 2 through four first branch high-pressure oil pipes; the main high-pressure oil pipe is provided with an electromagnetic directional valve and a one-way throttle valve along the flowing direction of the hydraulic oil, and the first branch high-pressure oil pipe is provided with a speed-limiting valve and a hydraulic control one-way valve along the flowing direction of the hydraulic oil; the hydraulic control one-way valve is connected with the oil tank through a hydraulic control oil return oil way, the four speed limiting valves are respectively connected with an oil return port of the electromagnetic directional valve through a second branch high-pressure oil pipe, and the four second branch high-pressure oil pipes are respectively provided with a liquid supplementing one-way valve. Four all be equipped with pressure sensor 5 on jack 2, be equipped with the percentage table 6 that is used for measuring pile body settlement volume on the pile body.
It should be noted that the above are only some embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a vertical resistance to compression bearing capacity testing arrangement of single pile, includes pile head (1), and the top of pile head (1) is equipped with a plurality of jacks (2), and bearing platform (3) have been placed at the top of jack (2), bear a plurality of balancing weights on bearing platform (3), its characterized in that: be equipped with between pile head (1) and jack (2) and bear base (7), bear base (7) including horizontally last backup pad (71) and bottom suspension fagging (72), go up and be connected with vertical support column (73) between backup pad (71) and bottom suspension fagging (72), the outer fringe of bottom suspension fagging (72) is equipped with a plurality of hinged-supports (75), it is connected with telescopic link (76) that can be at vertical in-plane rotation to rotate on hinged-support (75), the front end of telescopic link (76) articulate have with telescopic link (76) vertically grip block (78), a plurality of jacks (2) synchronous link.
2. The single-pile vertical compression-resistant bearing capacity testing device as claimed in claim 1, wherein the number of the jacks (2) is four, an oil tank, a hydraulic pump, a synchronous shunt motor and an electromagnetic reversing valve are connected to the jacks (2), a main high-pressure oil pipe is connected between an oil outlet of the oil tank and an oil inlet of the hydraulic pump, a power input end of the hydraulic pump is in transmission connection with a power output end of the synchronous shunt motor, and the hydraulic pump is respectively connected with the four jacks (2) through four first branch high-pressure oil pipes; the main high-pressure oil pipe is provided with an electromagnetic directional valve and a one-way throttle valve along the flowing direction of the hydraulic oil, and the first branch high-pressure oil pipe is provided with a speed-limiting valve and a hydraulic control one-way valve along the flowing direction of the hydraulic oil; the hydraulic control one-way valve is connected with the oil tank through a hydraulic control oil return oil way, the four speed limiting valves are respectively connected with an oil return port of the electromagnetic directional valve through second branch high-pressure oil pipes, and the four second branch high-pressure oil pipes are provided with liquid supplementing one-way valves.
3. The single-pile vertical compression-resistant bearing capacity testing device as claimed in claim 1, wherein a locking bolt (77) is connected to the telescopic rod (76).
4. The single-pile vertical compression-resistant bearing capacity testing device as recited in claim 1, wherein a plurality of ribbed plates (74) are arranged between the upper supporting plate (71) and the lower supporting plate (72).
5. The single-pile vertical compression-resistant bearing capacity testing device as claimed in claim 1, wherein pressure sensors (5) are arranged on four jacks (2), and a dial indicator (6) for measuring the settlement of the pile body is arranged on the pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022162757.4U CN214090014U (en) | 2020-09-28 | 2020-09-28 | Vertical resistance to compression bearing capacity testing arrangement of single pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022162757.4U CN214090014U (en) | 2020-09-28 | 2020-09-28 | Vertical resistance to compression bearing capacity testing arrangement of single pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214090014U true CN214090014U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022162757.4U Active CN214090014U (en) | 2020-09-28 | 2020-09-28 | Vertical resistance to compression bearing capacity testing arrangement of single pile |
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| Country | Link |
|---|---|
| CN (1) | CN214090014U (en) |
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2020
- 2020-09-28 CN CN202022162757.4U patent/CN214090014U/en active Active
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