CN209741944U - Improved self-balancing pile measuring equipment - Google Patents
Improved self-balancing pile measuring equipment Download PDFInfo
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- CN209741944U CN209741944U CN201920397747.3U CN201920397747U CN209741944U CN 209741944 U CN209741944 U CN 209741944U CN 201920397747 U CN201920397747 U CN 201920397747U CN 209741944 U CN209741944 U CN 209741944U
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Abstract
The utility model relates to an engineering design technical field, and an improved generation self-balancing survey stake equipment is disclosed, including the pile body, bury self-balancing case and the static load pressure device of pile body underground in advance, the self-balancing case divide into upper segment stake and hypomere stake with the pile body, the self-balancing incasement is equipped with the jack, the jack passes through the fixed intercommunication of oil pipe and outside oil pump, the static load pressure device includes two fixed plates, two dead levers of the upper end symmetry fixedly connected with of fixed plate, the same backup pad of upper end fixedly connected with of four dead levers, the pole wall fixedly connected with layer board that the dead lever is close to the upper end, the upper end of layer board is rotated through ball bearing and is connected with the screw rod, the upper end and the fixedly connected. The utility model provides an original self-balancing method be in the problem that the calculation balance point is difficult to the accuracy, the effectual experimental stake of having solved just by ejecting the problem that leads to experimental failure or can not survey limit load before not reaching limit load.
Description
Technical Field
The utility model relates to an engineering design technical field especially relates to an improved generation self-balancing survey stake equipment.
Background
In engineering design, related parameters of a single pile need to be tested, a static load test method, a dynamic nondestructive testing method and a self-balancing method are mostly adopted for testing at present, and the three test methods have certain defects. Although the test results obtained by the conventional static load test can be directly used for engineering design, the instrument is very complicated. Anchor piles are often installed on site to manufacture reaction beams and ballast platforms, so that labor and time are wasted, and the test cost is high; 2. the dynamic nondestructive testing method is characterized in that dynamic load is loaded by a binding loading instrument to cause vibration of a pile top, obvious acceleration can be generated during dynamic nondestructive testing, and the property of a pile body is analyzed by measuring physical data of pile motion, so that the bearing capacity of the pile is determined. However, the dynamic load acting on the pile by the low-strain method is smaller than the using load of the pile, the limit load of the pile cannot be measured, and the high-strain method is based on the stress propagation principle, and the collected data are in motion, so the accuracy of the test result is not high; the self-balancing method utilizes the principle of self counter-force balance of a test pile, and through a self-balancing box with a pre-buried pile body, during testing, an oil pump placed on the ground applies load to upper and lower piles through a jack of the self-balancing box, so that the upper pile generates upward displacement, the side frictional resistance of the pile slowly reaches a limit state, and meanwhile, downward pressure is applied to the lower pile to enable the lower pile to generate downward movement, so that the lower pile reaches the limit state, and the limit frictional resistance and end resistance are generated. The self-balancing method is characterized by comprising the following steps of economy (the test device is simple, the time is short, the reusable is capable of saving labor and test cost), convenience (load and displacement curves obtained by a counter-force test by utilizing the self-balancing principle are obtained, the limit bearing capacity is obtained through simple conversion) safety (the pile top is not provided with a pile load and a counter-force frame, and an engineer only needs to control an instrument to apply the load), but the existing method for calculating the balance point is difficult to accurately calculate the position of the balance point, so that the upper pile is jacked in advance during the test, the test failure is caused, and the limit vertical bearing capacity of the pile is difficult to measure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the incomplete problem of the test device method of single pile test among the prior art, and the improved generation self-balancing pile measuring equipment who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
An improved self-balancing pile measuring device comprises a pile body, a self-balancing box and a static load pressurizing device, wherein the pile body is pre-embedded in the self-balancing box, the self-balancing box divides the pile body into an upper section pile and a lower section pile, a jack is arranged in the self-balancing box, the jack is fixedly communicated with an external oil pump through an oil pipe, the static load pressurizing device comprises two fixing plates, two fixing rods are symmetrically and fixedly connected to the upper ends of the fixing plates, the upper ends of the four fixing rods are fixedly connected with a same supporting plate, a supporting plate is fixedly connected to the rod wall of the fixing rod close to the upper end, a screw rod is rotatably connected to the upper end of the supporting plate through a ball bearing, a driven gear penetrates through the upper end of the supporting plate and is fixedly connected to the upper end of the screw rod, a motor is fixedly connected to the lower, the four screw rods are in threaded connection with the same lifting plate, a pressing rod is fixedly connected to the center of the lower end of the lifting plate, and a pressing plate is fixedly connected to the lower end of the pressing rod.
Preferably, the side wall of the fixing plate is fixedly connected with an L-shaped positioning plate, a screw hole is formed in the surface of the L-shaped positioning plate, and a positioning bolt is connected to the screw hole in an internal thread mode.
preferably, the lower end of the fixing plate is symmetrically and fixedly connected with two universal wheels.
Preferably, the upper end of the screw penetrates through the surface of the supporting plate through a through hole formed in the surface of the supporting plate, and the through hole is rotatably sleeved outside the screw through a ball bearing.
Preferably, the lateral wall symmetry fixedly connected with four spacing sliders of backup pad, the pole wall of dead lever is seted up with spacing slider phase-match and along the spacing spout that vertical direction set up.
Compared with the prior art, the utility model provides an improved generation self-balancing survey stake equipment possesses following beneficial effect:
The improved self-balancing pile measuring equipment comprises a static load pressurizing device, a self-balancing box, a bearing, the static force applied to the pile top is smaller than the static force applied to the original static load test, so that manpower and material resources consumed by applying huge static force to the original static load test are reduced, after the static force is applied to the pile top, the problem that the limit vertical bearing capacity of the pile is difficult to measure due to the fact that the upper-section pile is jacked in advance during testing and the test failure is difficult to measure is avoided, the problem that the balance point is difficult to calculate accurately by the original self-balancing method is solved, the problem that the test failure is caused or the limit load cannot be measured due to the fact that the test pile is jacked out before the limit load is not reached is effectively solved, the test success rate is greatly improved, a more complete Q-S (settlement-displacement) curve can be obtained, and the method also has the advantages of economy, convenience and safety of the self-balancing method.
And the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model provides an original self-balancing method be difficult to accurate problem at the calculation balance point, the effectual experimental stake of having solved just is ejecting before not reaching the limit load and leads to experimental failure or can not survey the problem of limit load.
Drawings
fig. 1 is a schematic structural view of an improved self-balancing pile measuring device provided by the present invention;
Fig. 2 is the utility model provides an improved generation self-balancing survey stake equipment's pile body atress sketch map.
In the figure: 1 pile body, 2 self-balancing boxes, 3 upper-section piles, 4 lower-section piles, 5 jacks, 6 oil pumps, 7 fixing plates, 8 fixing rods, 9 supporting plates, 10 supporting plates, 11 screw rods, 12 driven gears, 13 motors, 14 driving gears, 15 lifting plates, 16 pressing rods, 17 pressing plates, 18L-shaped positioning plates and 19 universal wheels.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
referring to fig. 1-2, an improved self-balancing pile measuring device comprises a pile body 1, a self-balancing box 2 in which the pile body is embedded in advance, and a static load pressurizing device, wherein the self-balancing box 2 divides the pile body 1 into an upper pile 3 and a lower pile 4, a jack 5 is arranged in the self-balancing box 2, the jack 5 is fixedly communicated with an external oil pump 6 through an oil pipe, the static load pressurizing device comprises two fixing plates 7, the upper ends of the fixing plates 7 are symmetrically and fixedly connected with two fixing rods 8, the upper ends of the four fixing rods 8 are fixedly connected with a same supporting plate 9, the rod wall of the fixing rod 8 close to the upper end is fixedly connected with a supporting plate 10, the upper end of the supporting plate 10 is rotatably connected with a screw rod 11 through a ball bearing, the upper end of the screw rod 11 penetrates through the upper end of the supporting plate 9 and is fixedly connected with driven gears 12, the lower end of the supporting plate, the four screw rods 11 are in threaded connection with the same lifting plate 15, the center of the lower end of the lifting plate 15 is fixedly connected with a pressing rod 16, and the lower end of the pressing rod 16 is fixedly connected with a pressing plate 17.
The side wall of the fixing plate 7 is fixedly connected with an L-shaped positioning plate 18, the surface of the L-shaped positioning plate 18 is provided with a screw hole, and a positioning bolt is connected in the screw hole in a threaded manner.
Two universal wheels 19 are symmetrically and fixedly connected to the lower end of the fixed plate 7.
The upper end of the screw rod 11 penetrates through the surface of the supporting plate 9 through a through hole formed in the surface of the supporting plate 9, and the through hole is rotatably sleeved outside the screw rod 11 through a ball bearing.
The lateral wall symmetry fixedly connected with four spacing sliders of backup pad 9, the pole wall of dead lever 8 set up with spacing slider phase-match and along the spacing spout that vertical direction set up.
In the utility model, when in use and in test, the static load pressurizing device is moved to the upper part of the pile body 1 through the universal wheel 19, the static load pressurizing device is firmly fixed through the L-shaped positioning plate 18 by using the limit bolt, the upper pile and the lower pile are loaded by the oil pump 6 placed on the ground to the jack 5 of the self-balancing box 2, the upper pile 3 generates upward displacement, the side friction resistance of the pile slowly reaches the limit state, meanwhile, the lower pile 4 generates downward movement by applying downward pressure to the lower pile 4, the lower pile 4 reaches the limit state, the limit friction resistance and the end resistance are generated, the motor 13 is started, the motor 13 drives the driving gear 14 to rotate, the four screw rods 11 to rotate by utilizing the meshing action of the driving gear 14 and the driven gear 12, the lifting plate 15 pushes the pressure rod 16 to move downwards by utilizing the threaded connection action of the screw rods 11 and the lifting plate 15, furthermore, a stable static force is applied to the upper end of the pile body 1 through the pressing plate 17, the testing mode integrates a static load test and a self-balancing method for testing the pile, the static force applied to the pile top is smaller than the static force applied by the original static load test, so that the manpower and material resources consumed by the huge static force applied by the original static load test are reduced, after the static force is applied to the pile top, the problem that the upper-section pile 3 is jacked in advance during testing to cause the test failure and to be difficult to measure the ultimate vertical bearing capacity of the pile is avoided, the problem that the original self-balancing method is difficult to calculate the balance point accurately is solved, the problem that the test pile is jacked out before the ultimate load is not reached is effectively solved, the test success rate is greatly improved, a more complete Q-S (sedimentation-displacement) curve can be obtained, the self-balancing method also has the economy and convenience, the safety is high.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. An improved self-balancing pile measuring device comprises a pile body (1), a self-balancing box (2) with the pile body embedded in advance and a static load pressurizing device, and is characterized in that the self-balancing box (2) divides the pile body (1) into an upper section pile (3) and a lower section pile (4), a jack (5) is arranged in the self-balancing box (2), the jack (5) is fixedly communicated with an external oil pump (6) through an oil pipe, the static load pressurizing device comprises two fixing plates (7), the upper end of each fixing plate (7) is symmetrically and fixedly connected with two fixing rods (8), the upper ends of the four fixing rods (8) are fixedly connected with a same supporting plate (9), a supporting plate (10) is fixedly connected to the rod wall of the fixing rod (8) close to the upper end, a screw rod (11) is rotatably connected to the upper end of the supporting plate (10) through a ball bearing, the upper end of the screw rod (11) penetrates through the upper end of the supporting, the lower extreme fixedly connected with motor (13) of backup pad (9), the output shaft of motor (13) upper end runs through surface and fixedly connected with driving gear (14) with four driven gear (12) meshing of backup pad (9), four screw rod (11) threaded connection has same lifter plate (15), fixedly connected with depression bar (16) are located at the lower extreme center of lifter plate (15), the lower extreme fixedly connected with clamp plate (17) of depression bar (16).
2. The improved self-balancing pile measuring device according to claim 1, wherein an L-shaped positioning plate (18) is fixedly connected to a side wall of the fixing plate (7), a screw hole is formed in the surface of the L-shaped positioning plate (18), and a positioning bolt is connected to the screw hole in a threaded manner.
3. The improved self-balancing pile measuring device according to claim 1, wherein two universal wheels (19) are symmetrically and fixedly connected to the lower end of the fixing plate (7).
4. The improved self-balancing pile measuring device according to claim 1, wherein the upper end of the screw (11) penetrates through the surface of the support plate (9) through a through hole formed in the surface of the support plate (9), and the through hole is rotatably sleeved outside the screw (11) through a ball bearing.
5. The improved self-balancing pile measuring device as claimed in claim 1, wherein four limiting slide blocks are symmetrically and fixedly connected to the side wall of the supporting plate (9), and a limiting sliding groove matched with the limiting slide blocks and arranged in the vertical direction is formed in the rod wall of the fixing rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920397747.3U CN209741944U (en) | 2019-03-27 | 2019-03-27 | Improved self-balancing pile measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920397747.3U CN209741944U (en) | 2019-03-27 | 2019-03-27 | Improved self-balancing pile measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209741944U true CN209741944U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920397747.3U Expired - Fee Related CN209741944U (en) | 2019-03-27 | 2019-03-27 | Improved self-balancing pile measuring equipment |
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| CN (1) | CN209741944U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605467A (en) * | 2021-08-02 | 2021-11-05 | 湖北工业大学 | Pile foundation self-balancing test device with balance point compensation function and test method |
| CN114086610A (en) * | 2021-10-29 | 2022-02-25 | 浙江科技学院 | Device and method for preventing upper-section pile from being ejected out in pile self-balancing test |
| CN115492172A (en) * | 2022-07-26 | 2022-12-20 | 长沙理工大学 | Device and method for testing influence of traffic load on pile net composite foundation power |
-
2019
- 2019-03-27 CN CN201920397747.3U patent/CN209741944U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605467A (en) * | 2021-08-02 | 2021-11-05 | 湖北工业大学 | Pile foundation self-balancing test device with balance point compensation function and test method |
| CN113605467B (en) * | 2021-08-02 | 2022-08-16 | 湖北工业大学 | Pile foundation self-balancing test device with balance point compensation function and test method |
| CN114086610A (en) * | 2021-10-29 | 2022-02-25 | 浙江科技学院 | Device and method for preventing upper-section pile from being ejected out in pile self-balancing test |
| CN114086610B (en) * | 2021-10-29 | 2023-06-23 | 浙江科技学院 | Device and method for preventing ejection of upper section pile in pile self-balancing test |
| CN115492172A (en) * | 2022-07-26 | 2022-12-20 | 长沙理工大学 | Device and method for testing influence of traffic load on pile net composite foundation power |
| CN115492172B (en) * | 2022-07-26 | 2024-04-09 | 长沙理工大学 | Device and method for testing influence of traffic load on pile-net composite foundation power |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 |