CN214940486U - Foundation engineering multisection prestressing force tubular pile body internal force measuring device - Google Patents
Foundation engineering multisection prestressing force tubular pile body internal force measuring device Download PDFInfo
- Publication number
- CN214940486U CN214940486U CN202121116203.9U CN202121116203U CN214940486U CN 214940486 U CN214940486 U CN 214940486U CN 202121116203 U CN202121116203 U CN 202121116203U CN 214940486 U CN214940486 U CN 214940486U
- Authority
- CN
- China
- Prior art keywords
- strain
- tubular pile
- pipe pile
- internal force
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a foundation engineering multisection prestressed pipe pile body internal force measuring device in the technical field of prestressed pipe pile body internal force measuring devices, a hydraulic telescopic cylinder is fixedly arranged in the middle of the bottom of a top plate, strain induction rings are uniformly and fixedly fitted on the outer side wall of a pipe pile, a strain induction sheet fixedly fitted on the outer side wall of the pipe pile is arranged between two adjacent groups of strain induction rings, a linear micrometer is slidably fitted in a central through hole, a fiber grating data demodulator is fixed on the side wall of a stand column on the left side, the fiber grating data demodulator is electrically connected with the linear micrometer through an armored optical cable, can directly measure the stress strain on the outer side wall of the pipe pile, realizes the measurement of the strain of each pipe pile, can obtain the true strain value of the pipe pile, and further can visually measure the strain and the deformation on the pipe pile, the internal force measurement accuracy is high.
Description
Technical Field
The utility model relates to a prestressing force tubular pile body internal force measuring device technical field specifically is a foundation engineering multisection prestressing force tubular pile body internal force measuring device.
Background
The prestressed pipe pile has high bearing capacity, convenient industrial production and transportation, no noise and no pollution in site construction, and is widely introduced in the field of foundation engineering construction, at present, the pile sinking mode of the prestressed pipe pile mainly comprises a hammering method, a vibration method and a static pile pressing method, wherein the static pile pressing method has no noise and no vibration in the construction process, the application in urban areas with higher environmental protection requirements is wide, the stress characteristic and the stress transmission mechanism of the pile in the injection process of the prestressed pipe pile are not completely clear, the distribution condition of the side friction resistance and the end resistance of the pile cannot be accurately determined, so that the internal force distributed along the pile body under the load action is accurately obtained, the separation of the pile sinking resistance in the injection process of the prestressed pipe pile is facilitated, the deformation and the stress change rule of the pile body of the prestressed pipe pile cannot be timely obtained in the pile sinking process, and the internal force of the pile body cannot be accurately obtained, meanwhile, the stress distribution condition of the pile body cannot be obtained, and therefore, a device for measuring the internal force of the pile body of the multi-section prestressed pipe pile in foundation engineering is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a foundation engineering multisection prestressing force tubular pile body internal force measuring device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a foundation engineering multisection prestressed pipe pile body internal force measuring device comprises a bottom plate, wherein stand columns are fixedly arranged at four corners of the top of the bottom plate, a top plate is fixedly assembled at the top ends of four groups of stand columns, a rigid bearing plate is fixedly arranged in the middle of the top of the bottom plate, a pipe pile is arranged at the top of the rigid bearing plate, a hydraulic telescopic cylinder is fixedly arranged in the middle of the bottom of the top plate, an installation frame is fixedly assembled at the output end of the hydraulic telescopic cylinder, a bearing plate is fixedly assembled at the bottom end of the installation frame, strain induction rings are uniformly and fixedly assembled on the outer side wall of the pipe pile in a laminating manner, strain induction sheets fixedly assembled on the outer side wall of the pipe pile are arranged between two adjacent groups of strain induction rings, a central through hole is formed in the pipe pile, a linear micrometer is slidably assembled in the central through hole, and a filling water liquid layer is filled in the central through hole, the bearing plate is provided with a guide hole corresponding to the central through hole, the side wall of the upright column on the left side is fixedly provided with a fiber grating data demodulator, and the fiber grating data demodulator is electrically connected with the linear micrometer through an armored optical cable.
Preferably, the fixed assembly that cup joints of response ring meets an emergency is on the lateral wall of tubular pile, just the response piece that meets an emergency evenly sets up along the direction of height of tubular pile.
Preferably, the strain induction sheet is an oval induction sheet, and the strain induction sheet is arranged around the outer side wall of the tubular pile.
Preferably, the guide hole is communicated with the central through hole, and the armored optical cable penetrates through the guide hole and extends to the inner cavity of the central through hole to be fixedly connected with the linear micrometer.
Preferably, the top of the rigid supporting plate is fixedly provided with a limiting seat matched with the tubular pile, a limiting groove matched with the tubular pile is formed in the limiting seat, and the limiting seat corresponds to the bearing plate.
Preferably, the mounting frame is fixed in the middle of the top of the bearing plate, and an open through groove matched with the armored optical cable is formed in the mounting frame.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable design, hydraulic telescoping cylinder can drive the bearing plate and carry out load loading to the tubular pile, it has linear micrometer to slide in the central through-hole in the tubular pile, avoid other installations that rely on the pipe fitting, simple structure, it can be convenient for linear micrometer to slide in the central through-hole to be provided with the packing water liquid layer simultaneously in the central through-hole, deformation in the tubular pile is measured through the slide micrometer, the tubular pile can be fine directly transmits the pile body deformation to the linear micrometer that slides in the central through-hole, thereby realize the purpose of pile body strain test, and evenly cup joint on the lateral wall of tubular pile and be equipped with strain induction ring, and paste the strain induction piece between two adjacent sets of strain induction ring, therefore can directly measure the stress strain on the tubular pile lateral wall, realize the measurement of the strain of each tubular pile, can acquire the true value of strain of tubular pile, and then can carry out the visual measurement to strain and deformation on the tubular pile to monitoring data can show on fiber grating data demodulator in real time, and internal force measurement accuracy is high, is convenient for provide the basis for the selection of tubular pile strain measurement means under the different loads like this.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is the overall sectional structure diagram of the present invention.
In the figure: 1. a base plate; 2. a column; 3. a top plate; 4. a rigid support plate; 5. a tubular pile; 6. a hydraulic telescopic rod cylinder; 7. a mounting frame; 8. a pressure bearing plate; 9. a strain sensing gauge; 10. a central through hole; 11. a linear micrometer; 12. filling a water liquid layer; 13. a guide hole; 14. a fiber grating data demodulator; 15. an armored optical cable; 16. a strain sensitive loop.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a foundation engineering multisection prestressed pipe pile body internal force measuring device comprises a bottom plate 1, stand columns 2 are fixedly arranged at four corners of the top of the bottom plate 1, a top plate 3 is fixedly assembled at the top ends of four sets of stand columns 2, a rigid bearing plate 4 is fixedly arranged in the middle of the top of the bottom plate 1, a pipe pile 5 is arranged at the top of the rigid bearing plate 4, a hydraulic telescopic cylinder 6 is fixedly arranged in the middle of the bottom of the top plate 3, an installation frame 7 is fixedly assembled at the output end of the hydraulic telescopic cylinder 6, a bearing plate 8 is fixedly assembled at the bottom end of the installation frame 7, strain induction rings 16 are uniformly and fixedly assembled on the outer side wall of the pipe pile 5 in a laminating and assembling manner, a strain induction sheet 9 fixedly assembled on the outer side wall of the pipe pile 5 is arranged between two adjacent sets of strain induction rings 16, a central through hole 10 is formed in the pipe pile 5, a linear micrometer 11 is slidably assembled in the central through hole 10, and a filling water liquid layer 12 is filled in the central through hole 10, the bearing plate 8 is provided with a guide hole 13 corresponding to the central through hole 10, the side wall of the left upright post 2 is fixed with a fiber grating data demodulator 14, and the fiber grating data demodulator 14 is electrically connected with the linear micrometer 11 through an armored optical cable 15.
Referring to fig. 1, the strain sensing ring 16 is fixedly sleeved on the outer side wall of the tubular pile 5, and the strain sensing pieces 9 are uniformly arranged along the height direction of the tubular pile 5, so that the stress strain on the outer side wall of the tubular pile 5 can be directly measured, the strain measurement of each pile body section can be realized, and the true strain value of the tubular pile 5 can be obtained;
referring to fig. 1, the strain sensing sheet 9 is an oval sensing sheet, and the strain sensing sheet 9 is disposed around the outer sidewall of the tubular pile 5, so as to improve the measurement accuracy of the tubular pile 5;
referring to fig. 2, the guide hole 13 is communicated with the central through hole 10, and the armored optical cable 15 passes through the guide hole 13 and extends to the inner cavity of the central through hole 10 to be fixedly connected with the linear micrometer 11;
the top of the rigid bearing plate 4 is fixedly provided with a limiting seat matched with the tubular pile 5, the limiting seat is provided with a limiting groove matched with the tubular pile 5, and the limiting seat corresponds to the bearing plate 8;
the mounting bracket 7 is fixed in the middle of the top of the bearing plate 8, and an opening through groove matched with the armored optical cable 15 is formed in the mounting bracket 7.
The working principle is as follows: the hydraulic telescopic cylinder 6 can drive the bearing plate 8 to load the tubular pile 5, the linear micrometer 11 is arranged in the central through hole 10 in the tubular pile 5 in a sliding mode, installation of other supported pipe fittings is avoided, the structure is simple, meanwhile, a water filling liquid layer 12 is arranged in the central through hole 10, the linear micrometer 11 can conveniently slide in the central through hole 10, deformation in the tubular pile 5 is measured through the sliding micrometer 11, the tubular pile can well directly transmit deformation of a pile body to the linear micrometer 11 sliding in the central through hole 10, the purpose of testing the strain of the pile body is achieved, strain induction rings 16 are evenly sleeved on the outer side wall of the tubular pile 5, and strain induction sheets 9 are attached between every two adjacent sets of strain induction rings 16, so that the stress on the outer side wall of the tubular pile 5 can be directly measured, and the measurement of the strain of each pile body section is achieved, the true value of the strain of the tubular pile 5 can be obtained, so that the strain and the deformation on the tubular pile 5 can be visually measured, the monitoring data can be displayed on the fiber grating data demodulator 14 in real time, the internal force measurement accuracy is high, and the basis is provided for selecting the strain measurement means of the tubular pile 5 under different loads.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a foundation engineering multisection prestressing force tubular pile body internal force measuring device which characterized in that: comprises a bottom plate (1), columns (2) are fixedly arranged at four corners of the top of the bottom plate (1), four groups of columns (2) are fixedly provided with a top plate (3) at the top, a rigid bearing plate (4) is fixedly arranged in the middle of the top of the bottom plate (1), a tubular pile (5) is arranged at the top of the rigid bearing plate (4), a hydraulic telescopic cylinder (6) is fixedly arranged in the middle of the bottom of the top plate (3), a mounting frame (7) is fixedly assembled at the output end of the hydraulic telescopic cylinder (6), a bearing plate (8) is fixedly assembled at the bottom end of the mounting frame (7), strain induction rings (16) are uniformly and fixedly assembled on the outer side wall of the tubular pile (5), strain induction sheets (9) fixedly assembled on the outer side wall of the tubular pile (5) are arranged between two adjacent groups of the strain induction rings (16), and a central through hole (10) is formed in the tubular pile (5), the linear micrometer (11) is assembled in the central through hole (10) in a sliding mode, a filling water liquid layer (12) is filled in the central through hole (10), a guide hole (13) corresponding to the central through hole (10) is formed in the bearing plate (8), a fiber grating data demodulator (14) is fixed on the side wall of the stand column (2), and the fiber grating data demodulator (14) is electrically connected with the linear micrometer (11) through an armored optical cable (15).
2. The foundation engineering multisection prestressed pipe pile shaft internal force measuring device of claim 1, characterized in that: strain response ring (16) are fixed to be cup jointed and are assembled on the lateral wall of tubular pile (5), just strain response piece (9) evenly set up along the direction of height of tubular pile (5).
3. The foundation engineering multisection prestressed pipe pile shaft internal force measuring device of claim 2, characterized in that: strain response piece (9) are oval response piece, just strain response piece (9) set up around the lateral wall of tubular pile (5).
4. The foundation engineering multisection prestressed pipe pile shaft internal force measuring device of claim 1, characterized in that: the guide hole (13) is communicated with the central through hole (10), and the armored optical cable (15) penetrates through the guide hole (13) and extends to the inner cavity of the central through hole (10) to be fixedly connected with the linear micrometer (11).
5. The foundation engineering multisection prestressed pipe pile shaft internal force measuring device of claim 1, characterized in that: the top of rigidity bearing board (4) is fixed and is provided with the spacing seat with tubular pile (5) looks adaptation, and sets up the spacing groove with tubular pile (5) looks adaptation on the spacing seat, and spacing seat and bearing plate (8) are corresponding.
6. The foundation engineering multisection prestressed pipe pile shaft internal force measuring device of claim 1, characterized in that: the mounting frame (7) is fixed in the middle of the top of the bearing plate (8), and an opening through groove matched with the armored optical cable (15) is formed in the mounting frame (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121116203.9U CN214940486U (en) | 2021-05-24 | 2021-05-24 | Foundation engineering multisection prestressing force tubular pile body internal force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121116203.9U CN214940486U (en) | 2021-05-24 | 2021-05-24 | Foundation engineering multisection prestressing force tubular pile body internal force measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214940486U true CN214940486U (en) | 2021-11-30 |
Family
ID=79059272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121116203.9U Active CN214940486U (en) | 2021-05-24 | 2021-05-24 | Foundation engineering multisection prestressing force tubular pile body internal force measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214940486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233751A (en) * | 2022-08-25 | 2022-10-25 | 浙江广利工程咨询有限公司 | Method and device for testing internal force of prestressed pipe pile load |
-
2021
- 2021-05-24 CN CN202121116203.9U patent/CN214940486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233751A (en) * | 2022-08-25 | 2022-10-25 | 浙江广利工程咨询有限公司 | Method and device for testing internal force of prestressed pipe pile load |
| CN115233751B (en) * | 2022-08-25 | 2023-10-13 | 浙江广利工程咨询有限公司 | Method and device for testing load internal force of prestressed pipe pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214940486U (en) | Foundation engineering multisection prestressing force tubular pile body internal force measuring device | |
| CN104792615B (en) | A kind of soil pressure testing device and earth pressure test modified computing method | |
| CN105004454A (en) | Heavy-load single-component sensor and measuring method | |
| CN106769523A (en) | Measurement apparatus for measuring soil mechanics characteristic | |
| CN102103065A (en) | Device for calibrating extraction instrument | |
| CN209798849U (en) | layered pile foundation testing device adopting double-pneumatic-membrane vertical loading | |
| CN109469124B (en) | Layered pile foundation test device and test method adopting double air pressure films for vertical loading | |
| CN101806688B (en) | Unidirectional tension test device of super-large diameter round bar machine | |
| CN108867652B (en) | Foundation pit excavation rapid monitoring instrument | |
| CN214832948U (en) | Small-size test device of wind-powered electricity generation grout material grout connectivity | |
| CN1851417A (en) | Weighing apparatus | |
| CN102313589B (en) | Attached steel rail wheel weight sensor | |
| CN204924517U (en) | Portable electronic dynamometer | |
| CN104458105A (en) | Method for detecting pressure in oil well and optical grating sensor used in same | |
| CN114993162A (en) | Device and method for measuring circumferential strain and axial stress of grouting material | |
| CN204903051U (en) | Heavy load singly divides level sensor | |
| CN209979055U (en) | Portable spin-pressurization rapid calibrating device for underground weighbridge | |
| CN206891625U (en) | A kind of simple earth pressure gauge | |
| CN211453168U (en) | Anchor rod uplift bearing capacity detection equipment | |
| CN203824688U (en) | Grating pressure transducer for detecting oil well pressure | |
| CN206128585U (en) | A instrument for measuring bowl is detained a formula steel pipe support and is stabilized bearing capacity | |
| CN214460712U (en) | Optical fiber expansion device for pile foundation self-balancing static load test | |
| CN104567655A (en) | Dynamic angular displacement measuring device and method | |
| CN215165424U (en) | Loading device for deep layer load test in open caisson construction period | |
| CN219777299U (en) | High-order static loading device based on multi-pile self-balancing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |