CN214423427U - Overwater steel pipe pile bearing capacity detection device - Google Patents
Overwater steel pipe pile bearing capacity detection device Download PDFInfo
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- CN214423427U CN214423427U CN202022416862.6U CN202022416862U CN214423427U CN 214423427 U CN214423427 U CN 214423427U CN 202022416862 U CN202022416862 U CN 202022416862U CN 214423427 U CN214423427 U CN 214423427U
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- bearing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 74
- 239000010959 steel Substances 0.000 title claims abstract description 74
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model belongs to the technical field of civil engineering construction, concretely relates to steel pipe pile bearing capacity detection device on water, including at least three buoyancy gasbag evenly established around the steel pipe pile, be equipped with load-bearing platform on the buoyancy gasbag, load-bearing platform is higher than steel pipe pile top, is equipped with the biography force structure between steel pipe pile top and the load-bearing platform, and biography force structure top is equipped with the dynamometer, and detection device still includes displacement sensor, calculates out actual bearing capacity through the numerical value that the dynamometer surveys and compares with theoretical limit bearing capacity standard value that calculates, judges whether the steel pipe pile can be under construction safely; the detection device has a simple structure, can visually detect the side friction resistance, is simple and convenient to construct and operate, and effectively detects the actual limit side friction resistance.
Description
Technical Field
The utility model belongs to the technical field of civil engineering construction, concretely relates to steel pipe pile bearing capacity detection device on water.
Background
The pile side frictional resistance is used for the core problem of pile foundation design, the bearing capacity of the pile side frictional resistance is mainly born by the pile side frictional resistance, in the existing design, the pile side frictional resistance is calculated, however, in the practical application, due to the influence of the environment, the influence of the pile side frictional resistance is obvious, particularly the side frictional resistance of the offshore steel pipe pile is difficult to obtain from the theory. If the calculation is only carried out, the bearing stress of the steel pipe pile is seriously influenced, so that the construction safety is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steel pipe pile bearing capacity detection device on water to the steel pipe pile who mentions among the solution prior art receives the influence of place environment, and especially marine steel pipe pile's bearing capacity is difficult to acquire from the theory, the poor scheduling problem of construction security.
The technical scheme adopted by the utility model is a bearing capacity detection device for an overwater steel pipe pile, which comprises at least three buoyancy air bags uniformly arranged around the steel pipe pile, wherein a bearing platform is arranged on each buoyancy air bag, a force transmission structure is arranged between the top of the steel pipe pile and the bearing platform, and a dynamometer is arranged at the top of the force transmission structure; the detection device further comprises a displacement sensor.
By uniformly installing the buoyancy air bags on the bearing platform, the bearing platform can stably support piled objects, and the overturning of the bearing platform is effectively avoided; evenly place the heap thing above load-bearing platform, the steel-pipe pile is given with power to the rethread force transfer device, realizes sinking of steel-pipe pile, observes through displacement sensor and reaches the displacement that sinks of limit, observes the dynamometry count value again, compares through the vertical limit bearing capacity standard value of the single pile of dynamometer survey numerical value and theoretical calculation, judges whether the steel-pipe pile can be under construction safely.
Preferably, a guide structure is further arranged between the steel pipe pile and the buoyancy airbag and used for fixing the steel pipe pile and the buoyancy airbag in position relatively.
The steel pipe pile is positioned at the center of the bearing platform due to the arrangement of the guide structure, so that the bearing platform can stably support the piled objects and avoid overturning.
Preferably, the guide structure comprises a guide ring arranged in the center of the bottom of the bearing platform, and the guide ring is sleeved on the top of the steel pipe pile.
The guide ring is one of the structural style of guide structure, and the setting up of guide ring makes the steel-pipe pile be in load-bearing platform's central point and puts, makes load-bearing platform can the stable support heap year thing, avoids toppling.
Preferably, the guide structure comprises a guide frame fixedly connected with the steel pipe pile, the position and the number of the guide frame correspond to those of the buoyancy air bags, and the guide frame is used for fixing the positions of the buoyancy air bags.
The guide frame is another kind of structural style of guide structure, and the setting up of guide frame makes the steel-pipe pile be in load-bearing platform's central point and puts, makes load-bearing platform can the stable support pile and carries the thing, avoids toppling.
Preferably, the force transfer structure is a jack.
The bearing capacity of the force transfer structure is large, the structure precision requirement is high, the force transfer structure is set to be a plurality of jacks which are evenly distributed, the requirement of detection can be met, the dynamometer is connected to the top of each jack, and the dynamometer can read out the value of the vertical bearing capacity of the steel pipe pile visually.
Preferably, the steel-pipe pile top is equipped with the loading board, evenly sets up a plurality of jacks around steel-pipe pile center on the loading board.
The arrangement of the bearing plate can ensure that the jacks are distributed more uniformly and are stressed stably.
Preferably, the load-bearing platform comprises a plurality of steel beams arranged uniformly.
The bearing capacity of the steel beams is large, the structure is stable, and therefore the bearing platform is composed of the steel beams which are uniformly arranged.
The utility model has the advantages that:
by uniformly installing the buoyancy air bags on the bearing platform, the bearing platform can stably support piled objects, and the overturning of the bearing platform is effectively avoided; uniformly placing piled objects above the bearing platform, transmitting force to the steel pipe pile through the force transmission structure to realize sinking of the steel pipe pile, observing the sinking displacement reaching the limit through a displacement sensor, observing a force measurement counting value, comparing a numerical value measured by a dynamometer with a standard value of the vertical limit bearing capacity of the single pile calculated in theory, and judging whether the steel pipe pile can be safely constructed; the detection device has a simple structure, can visually detect the actual bearing capacity of the steel pipe pile, is simple and convenient to construct and operate, and can effectively detect the actual bearing capacity of the steel pipe pile.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a schematic structural view of the guiding structure of the present invention being a guiding ring;
fig. 4 is a schematic structural view of the guiding structure of the present invention being a guiding frame.
Description of reference numerals: 1-steel pipe pile; 2-buoyancy air bags; 3-a load-bearing platform; 4-force transmission structure; 5-a force gauge; 6-a displacement sensor; 7-a guide structure; 8-a guide ring; 9-a guide frame; 10-carrying plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, and it is to be understood that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central, lateral, longitudinal, up, down, front, back, left, right, vertical, horizontal, top, bottom, inner, outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1 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.
The technical scheme of the utility model is a steel pipe pile bearing capacity detection device on water, its main structure sketch map of looking down is shown in fig. 1, its structural sketch map of looking down is shown in fig. 2, including evenly establishing at least three buoyancy gasbag 2 around steel-pipe pile 1, be equipped with load-bearing platform 3 on the buoyancy gasbag 2, load-bearing platform 3 is higher than steel-pipe pile 1 top, is equipped with between 1 top of steel-pipe pile and load-bearing platform 3 and passes force structure 4, passes force structure 4 top and is equipped with dynamometer 5; the detection means further comprise a displacement sensor 6.
The installation position of the displacement sensor 6 is not fixed, and the displacement sensor can be arranged on the steel pipe pile 1 or on the bearing platform 3 or the force transmission structure 4.
The buoyancy air bags 2 are uniformly arranged on the bearing platform 3, so that the bearing platform 3 can stably support piled objects, and the overturning of the bearing platform 3 is effectively avoided; evenly place the heap thing above load-bearing platform 3, steel-pipe pile 1 is transfered with power to rethread biography power structure 4, realizes sinking of steel-pipe pile 1, observes through displacement sensor 6 and reaches the limit and sinks after the displacement, observes dynamometry 5 count value again, compares with the vertical extreme bearing capacity standard value of single pile of theoretical calculation through the numerical value that dynamometer 5 surveyed, judges whether the steel-pipe pile can be under construction safely.
The judgment process is as follows: finding out a limit side friction resistance standard value of the pile according to a geological survey report, namely a Q value, wherein L is the thickness of a soil layer around the pile, d is the pile diameter, and a vertical limit bearing capacity standard value of a single pile, namely a Q value, is obtained according to a formula Q which is pi qdL; when the displacement value of the displacement sensor 6 meets the requirement, the value measured by the dynamometer 5 is Q ', and then Q' and Q 'are compared, and when Q' is more than Q, the construction can be safely carried out.
Another way of judging may be to observe the value of the dynamometer 5 during the process of continuously loading the piled load, check whether the displacement value of the displacement sensor 6 reaches the required value when the value reaches the Q value, and perform safe construction when the actual displacement value is smaller than the limit bearing capacity displacement value.
The displacement value of the displacement sensor 6 is specified according to the specification manual, and when the sinking deformation exceeds 100mm, the loading of the stacked object can be stopped.
The detection device is large in structural size and stress, the requirement on the structural bearing capacity of each part of the corresponding device is high, and the structure needs to be stable and firm.
Because bearing platform 3 is placed at 1 top of steel-pipe pile, in order to make bearing platform 3 can the stable support pile thing, avoid toppling, can still be equipped with guide structure 7 between steel-pipe pile 1 and bearing platform 3 for make steel-pipe pile 1 and bearing platform 3 position relatively fixed. One structure of the guide structure 7 is that a guide ring 8 is arranged at the center of the bottom of the bearing platform 3, the guide ring 8 is sleeved on the top of the steel pipe pile 1, and a schematic structural diagram when the guide structure 7 is the guide ring 8 is shown in fig. 3. The steel pipe pile 1 is positioned at the center of the bearing platform 3 due to the arrangement of the guide ring 8, so that the bearing platform 3 can stably support the piled objects.
Another structure of the guide structure 7 is a guide frame 9 fixed around the steel pipe pile 1, the guide frame 9 is used for fixing the position of the buoyancy airbag 2, the position and number of the guide frame 9 correspond to the buoyancy airbag 2, and a schematic structural view when the guide structure 7 is the guide frame 9 is shown in fig. 4. The steel pipe pile 1 is positioned at the center of the bearing platform 3 due to the arrangement of the guide frame 9, so that the bearing platform 3 can stably support the piled material and avoid overturning.
The bearing capacity of the force transmission structure 4 is large, the structure precision requirement is high, the force transmission structure 4 is set to be a plurality of jacks which are evenly distributed, the requirement of detection can be met, the jack is connected with the dynamometer 5, and the dynamometer 5 can read out the value of the vertical bearing capacity of the steel pipe pile visually.
In order to enable the jacks to be uniformly distributed on the steel pipe pile 1 and to be stably stressed, a bearing plate 10 is arranged at the top of the steel pipe pile 1, and a plurality of jacks are uniformly arranged on the bearing plate 10 around the center of the steel pipe pile 1.
Finding out a limit side friction resistance standard value of the pile according to a geological survey report, namely a Q value, wherein L is the thickness of a soil layer around the pile, d is the pile diameter, and a vertical limit bearing capacity standard value of a single pile, namely a Q value, is obtained according to a formula Q which is pi qdL; first, a parameter model of the dynamometer 6 is selected based on a theoretically calculated Q value. And selecting the parameter models of the jacks according to the Q value and the number of the jacks. And then the displacement sensor 7 is selected according to the displacement value required by the specification.
The utility model relates to a steel pipe pile bearing capacity detection device on water specifically implements according to following step:
step 1, installing a debugging detection device; firstly theoretically pre-calculating a standard value of the vertical ultimate bearing capacity of a single pile, determining the size of a buoyancy air bag 2 according to the weight of a piled load, wherein the bearing capacity of a detection platform is larger than the theoretically pre-estimated standard value of the vertical ultimate bearing capacity of the single pile, installing the buoyancy air bag 2 on a bearing platform 3, installing a force transmission structure 4 and a dynamometer 5 on the top of the steel pipe pile 1, moving the bearing platform 3 to the central position of the upper part of the steel pipe pile 1, and installing a displacement sensor 6; in order to enable the installed bearing platform 3 to be smoothly installed with the steel pipe pile 1, the height of the bearing platform 3 after the buoyancy air bag 2 is installed is larger than the height of the steel pipe pile 1 above water.
Step 2, carrying out a stacking experiment; first, the load is uniformly placed on the load-bearing platform 3, and the displacement sensor 6 is observed.
And 3, stopping loading the piled cargo when the displacement value of the displacement sensor 6 reaches a required value, and observing the value of the dynamometer 5.
Step 4, comparing the value of the dynamometer 5 with the theoretical bearing capacity value; finding out a limit side friction resistance standard value of the pile according to a geological survey report, namely a Q value, wherein L is the thickness of a soil layer around the pile, d is the pile diameter, and a vertical limit bearing capacity standard value of a single pile, namely a Q value, is obtained according to a formula Q which is pi qdL;
when the displacement value of the displacement sensor 6 meets the requirement, the value measured by the dynamometer 5 is Q', namely the bearing capacity value of the actual steel pipe pile 1;
and then comparing Q ' with Q ', and when Q ' is more than Q, the construction can be safely carried out.
Step 5, disassembling the detection device; at first, the piled objects are evenly unloaded, the bearing platform 3 is moved out of the steel pipe pile 1, the bearing platform 3 is floated to be stored and placed, then the buoyancy airbag 2 is deflated, and the steel pipe pile is stored after being disassembled.
In conclusion, the problems that the steel pipe pile in the prior art is affected by the environment, particularly the bearing capacity of the offshore steel pipe pile is difficult to obtain from the theory, the construction safety is poor and the like are solved. The buoyancy air bags 2 are uniformly arranged on the bearing platform 3, so that the bearing platform 3 can stably support piled objects, and the overturning of the bearing platform 3 is effectively avoided; uniformly placing a stacking object above a bearing platform 3, transmitting force to a steel pipe pile 1 through a force transmission structure 4 to realize sinking of the steel pipe pile 1, observing the steel pipe pile 1 to reach ultimate sinking displacement through a displacement sensor 6, observing a force measurement 5 counting value, and judging whether the steel pipe pile can be safely constructed or not by comparing a value measured by a dynamometer 5 with a theoretically-calculated standard value of the vertical ultimate bearing capacity of a single pile; the detection device has a simple structure, can visually detect the actual bearing capacity of the steel pipe pile, is simple and convenient to construct and operate, and can effectively detect the actual bearing capacity of the steel pipe pile.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The device for detecting the bearing capacity of the overwater steel pipe pile is characterized by comprising at least three buoyancy air bags (2) uniformly arranged around the steel pipe pile (1), wherein a bearing platform (3) is arranged on each buoyancy air bag (2), a force transmission structure (4) is arranged between the top of the steel pipe pile (1) and the bearing platform (3), and a dynamometer (5) is arranged at the top of the force transmission structure (4);
the detection device further comprises a displacement sensor (6).
2. The device for detecting the bearing capacity of the overwater steel pipe pile as claimed in claim 1, wherein a guide structure (7) is further arranged between the steel pipe pile (1) and the buoyancy airbag (2) and used for fixing the positions of the steel pipe pile (1) and the buoyancy airbag (2) relatively.
3. The device for detecting the bearing capacity of the overwater steel pipe pile as claimed in claim 2, wherein the guide structure (7) comprises a guide ring (8) arranged at the center of the bottom of the bearing platform (3), and the guide ring (8) is sleeved on the top of the steel pipe pile (1).
4. The device for detecting the bearing capacity of the overwater steel pipe pile as claimed in claim 2, wherein the guide structure (7) comprises guide frames (9) fixedly connected with the steel pipe pile (1), the positions and the number of the guide frames (9) correspond to those of the buoyancy airbags (2), and the guide frames (9) are used for fixing the positions of the buoyancy airbags (2).
5. The device for detecting the bearing capacity of the overwater steel pipe pile as claimed in claim 1, wherein the force transmission structure (4) is a jack.
6. The waterborne steel pipe pile bearing capacity detection device according to claim 5, wherein a bearing plate (10) is arranged on the top of the steel pipe pile (1), and a plurality of jacks are uniformly arranged on the bearing plate (10) around the center of the steel pipe pile (1).
7. The device for detecting the bearing capacity of the overwater steel pipe pile as claimed in claim 1, wherein the bearing platform (3) comprises a plurality of steel beams which are uniformly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022416862.6U CN214423427U (en) | 2020-10-27 | 2020-10-27 | Overwater steel pipe pile bearing capacity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022416862.6U CN214423427U (en) | 2020-10-27 | 2020-10-27 | Overwater steel pipe pile bearing capacity detection device |
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| Publication Number | Publication Date |
|---|---|
| CN214423427U true CN214423427U (en) | 2021-10-19 |
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| CN202022416862.6U Active CN214423427U (en) | 2020-10-27 | 2020-10-27 | Overwater steel pipe pile bearing capacity detection device |
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| CN (1) | CN214423427U (en) |
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Effective date of registration: 20211224 Address after: 710065 262 zhangeight East Road, Yanta District, Xi'an, Shaanxi Patentee after: CCCC SECOND HIGHWAY ENGINEERING Co.,Ltd. Patentee after: CCCC Second Highway Engineering Co., Ltd Address before: 430014 rooms 1-9, 22 / F, building B, science and technology complex building, 145 Hong Kong Road, Jiang'an District, Wuhan City, Hubei Province Patentee before: CCCC-SHB FIRST ENGINEERING Co.,Ltd. |