CN213926418U

CN213926418U - Measuring device for displacement and internal force of pile foundation

Info

Publication number: CN213926418U
Application number: CN202023019858.2U
Authority: CN
Inventors: 李道源; 严静; 刘慧�
Original assignee: Yancheng Taikang Engineering Testing Co Ltd
Current assignee: Yancheng Taikang Engineering Testing Co Ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-10
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a measuring device of pile foundation displacement and internal force, including the loading board, the inside fixed mounting of loading board has the loading hydraulic press, loading board side fixed mounting has the fixed plate, loading board bottom four corners fixed mounting has the auxiliary stay pneumatic cylinder, auxiliary stay pneumatic cylinder bottom fixed mounting has the supporting baseplate, the piston rod bottom fixed mounting of loading hydraulic press has main strutting arrangement, main strutting arrangement includes the roof, roof bottom fixed mounting has the main stay pneumatic cylinder, main strutting pneumatic cylinder bottom fixed mounting has PMKD, PMKD both sides fixed mounting has displacement detection device, displacement detection device includes the bracing piece, bracing piece top fixed mounting has the crossbeam, crossbeam top fixed mounting has the displacement detector. This kind of measuring device of pile foundation displacement and internal force, simple structure is reasonable, and convenient to use has effectively solved the inconvenient and difficult problem of adjusting of loading direction of the measuring device loading of present most pile foundation displacement and internal force, has higher practical value.

Description

Measuring device for displacement and internal force of pile foundation

Technical Field

The utility model relates to a pile foundation detects technical field, specifically is a measuring device of pile foundation displacement and internal force.

Background

Deep foundations (see the figure) consisting of piles and pile caps (referred to as caps for short) connecting pile tops or single-pile foundations, referred to as pile foundations for short, connecting piles with piles. If the pile body is completely buried in the soil and the bottom surface of the bearing platform is contacted with the soil body, the pile body is called a low bearing platform pile foundation; when the upper part of the pile body is exposed out of the ground and the bottom of the pile cap is positioned above the ground, the pile body is called a high pile cap pile foundation. Building pile foundations are typically low cap pile foundations. In high-rise buildings, pile foundations are widely applied. The method comprises the following main classification: firstly, the foundation can be roughly divided into friction piles and bearing piles according to the stress principle of the foundation. 1. The friction piles utilize the friction force between the ground and the foundation piles to support the structure and can be divided into pressure piles and tension piles, which are generally used for the ground without a hard bearing layer or with a deeper bearing layer. 2. End-bearing piles are those in which foundation piles are seated on bearing layers (bedrock) to bear structures. And secondly, the construction method can be divided into a precast pile and a cast-in-place pile. 1. Pile prefabrication: and (4) driving the prefabricated reinforced concrete pile into the ground through a pile driver. The advantages are saving material, high strength, suitable for building with high requirement, high construction difficulty and long construction time limited by the number of machines. 2. Pile grouting: firstly, drilling holes on a construction site, and placing reinforcing steel bars into poured concrete after the required depth is reached. The construction method has the advantages that the construction difficulty is low, particularly, manual hole digging piles can be free from the limitation of the number of machines, all pile foundations are constructed simultaneously, the time is greatly saved, and the defects of low bearing capacity and material cost are overcome.

The pile foundation is the basis of building, and its quality has strict requirement, needs to carry out multinomial detection to it, and displacement and internal force detect wherein two important projects, and the measuring device of the displacement of most pile foundations and internal force still has following shortcoming: 1. the load is loaded through sandbags or bricks and needs to be hoisted to a bearing beam, so that the installation is inconvenient, and time and labor are wasted; 2. the loading device can not carry out loading according to the axis of the pile foundation, the inclination angle of the pile foundation is not easy to measure, and the loading platform is easy to collapse during loading; therefore, the pile foundation displacement and internal force measuring device is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a measuring device for pile foundation displacement and internal force, which comprises a bearing plate, wherein a loading hydraulic machine is fixedly arranged in the bearing plate, the side surface of the bearing plate is fixedly provided with a fixed plate, four corners of the bottom of the bearing plate are fixedly provided with auxiliary supporting hydraulic cylinders, the bottom of the auxiliary supporting hydraulic cylinder is fixedly provided with a supporting bottom plate, the bottom of a piston rod of the loading hydraulic machine is fixedly provided with a main supporting device, the main supporting device comprises a top plate, a main supporting hydraulic cylinder is fixedly arranged at the bottom of the top plate, a fixed bottom plate is fixedly arranged at the bottom of the main supporting hydraulic cylinder, displacement detection devices are fixedly arranged on two sides of the fixed bottom plate and comprise supporting rods, the support rod top fixed mounting has the crossbeam, crossbeam top fixed mounting has the displacement detector, the displacement detector has the controller through the pipe connection.

As a preferred technical scheme of the utility model, the loading board middle part is seted up flutedly, loading hydraulic press fixed mounting is in the recess, loading hydraulic press fixed mounting has the spliced pole all around, the loading hydraulic press passes through spliced pole fixed mounting in the recess.

As an optimized technical scheme of the utility model, fixed plate fixed mounting is in four sides of loading board, a plurality of through-holes have been seted up to the fixed plate.

As a preferred technical scheme of the utility model, the displacement detector includes the connecting seat, connecting seat one side fixed connection pipe, connecting pipe bottom fixed mounting has the displacement probe.

As a preferred technical scheme of the utility model, connecting seat fixed mounting is at the top of crossbeam, displacement probe bottom supports the top at PMKD.

As a preferred technical scheme of the utility model, the controller includes the casing, casing top fixed mounting has the display screen, the display screen is the touch-control display screen, casing one side fixed mounting has a plurality of connectors, the connector has interior force transducer through the pipe connection, the connector passes through pipeline and displacement detector interconnect.

As a preferred technical scheme of the utility model, casing one side fixed mounting has the handle, handle outside cover is equipped with the lag, the lag outside sets up anti-skidding texture.

The utility model has the advantages that:

1. according to the device for measuring the displacement and the internal force of the pile foundation, the groove is formed in the middle of the bearing plate, the loading hydraulic machine is fixedly installed in the groove, the auxiliary supporting hydraulic cylinders are fixedly installed at four corners of the bottom of the bearing plate, the fixing plates are fixedly installed on the side faces of the bearing plate and fixedly installed on four sides of the bearing plate, and the bearing plate is convenient to lift and lower due to the fact that the fixing plates are provided with the through holes, so that a heavy object can be conveniently loaded;

2. according to the device for measuring the displacement and the internal force of the pile foundation, the connecting columns are fixedly installed on the periphery of the loading hydraulic machine, the loading hydraulic machine is fixedly installed in the groove through the connecting columns and is connected with the loading hydraulic machine through the connecting columns, so that the loading hydraulic machine can automatically adjust the loading direction according to the axial direction of the pile foundation, the inclination angle of the pile foundation can be obtained according to the inclination angle of the loading hydraulic machine, and the calculation result is more accurate;

this kind of measuring device of pile foundation displacement and internal force, simple structure is reasonable, and convenient to use has effectively solved the inconvenient and difficult problem of adjusting of loading direction of the measuring device loading of present most pile foundation displacement and internal force, has higher practical value.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of a device for measuring displacement and internal force of a pile foundation according to the present invention;

fig. 2 is a schematic structural view of a main supporting device and a displacement detecting device of a device for measuring pile foundation displacement and internal force according to the present invention;

fig. 3 is a schematic structural view of a displacement detector of the device for measuring pile foundation displacement and internal force according to the present invention;

fig. 4 is a schematic structural diagram of a controller of the device for measuring displacement and internal force of a pile foundation according to the present invention.

In the figure: 1. a carrier plate; 2. loading a hydraulic machine; 3. a fixing plate; 4. an auxiliary support hydraulic cylinder; 5. a support base plate; 6. a main support device; 7. a displacement detection device; 8. fixing the bottom plate; 9. a main support hydraulic cylinder; 10. a top plate; 11. a cross beam; 12. a support bar; 13. a displacement detector; 14. a connecting seat; 15. a connecting pipe; 16. a displacement probe; 17. a controller; 18. a housing; 19. a display screen; 20. a connecting port; 21. a handle.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-4, the utility model relates to a measuring device of pile foundation displacement and internal force, including loading board 1, the inside fixed mounting of loading board 1 has loading hydraulic press 2, loading board 1 side fixed mounting has fixed plate 3, 1 bottom four corners fixed mounting of loading board has auxiliary stay pneumatic cylinder 4, 4 bottom fixed mounting of auxiliary stay pneumatic cylinder have supporting baseplate 5, the piston rod bottom fixed mounting of loading hydraulic press 2 has main strutting arrangement 6, main strutting arrangement 6 includes

roof

10, 10 bottom fixed mounting of roof has main stay pneumatic cylinder 9, 9 bottom fixed mounting of main stay pneumatic cylinder has PMKD 8, 8 both sides fixed mounting of PMKD has displacement detection device 7, displacement detection device 7 includes bracing

piece

12, 12 top fixed mounting of bracing piece has

crossbeam

11, 11 top fixed mounting of crossbeam has displacement detector 13, displacement detector 13 has controller 17 through the pipe connection.

The middle of the bearing plate 1 is provided with a groove, the loading hydraulic machine 2 is fixedly arranged in the groove, connecting columns are fixedly arranged on the periphery of the loading hydraulic machine 2, and the loading hydraulic machine 2 is fixedly arranged in the groove through the connecting columns.

Wherein, fixed plate 3 fixed mounting has a plurality of through-holes in the four sides of loading board 1, fixed plate 3.

Wherein, the displacement detector 13 comprises a connecting seat 14, a connecting pipe 15 is fixed on one side of the connecting seat 14, and a displacement probe 16 is fixedly arranged at the bottom of the connecting pipe 15.

Wherein, connecting seat 14 is fixedly installed on the top of cross beam 11, and the bottom of displacement probe 16 is abutted against the top of fixed bottom plate 8.

Wherein, controller 17 includes casing 18, and casing 18 top fixed mounting has display screen 19, and display screen 19 is the touch-control display screen, and casing 18 one side fixed mounting has a plurality of connectors 20, and connector 20 has interior force transducer through the pipe connection, and connector 20 passes through pipeline and displacement detector 13 interconnect.

Wherein, casing 18 one side fixed mounting has handle 21, and the cover is equipped with the lag outside handle 21, and the lag outside sets up anti-skidding texture.

The working principle is as follows: this kind of pile foundation displacement and internal force measuring device during operation, with the top of main tributary strutting arrangement 6 fixed pile foundation, again with loading board 1 fixed strutting arrangement's top, after that with displacement detection device 7 fixed main tributary strutting arrangement 6 both sides, with pre-buried internal force sensor and the displacement detector 13 in the pile foundation be connected with controller 17, pile up the heavy object of suitable weight again to loading board 1 top, can acquire the displacement and the internal force data that correspond the pile foundation at controller 17. According to the device for measuring the displacement and the internal force of the pile foundation, the groove is formed in the middle of the bearing plate 1, the loading hydraulic machine 2 is fixedly installed in the groove, the auxiliary supporting hydraulic cylinders 4 are fixedly installed at four corners of the bottom of the bearing plate 1, the fixing plates 3 are fixedly installed on the side faces of the bearing plate 1, the fixing plates 3 are fixedly installed on four sides of the bearing plate 1, the bearing plate 1 is convenient to lift, and therefore a heavy object can be loaded conveniently, in addition, the pile foundation with smaller load can be loaded directly through the loading hydraulic machine 2, the use is convenient and rapid, time and labor are saved, and the cost is saved; connecting columns are fixedly installed on the periphery of the loading hydraulic machine 2, the loading hydraulic machine 2 is fixedly installed in the groove through the connecting columns, and the loading hydraulic machine 2 is connected through the connecting columns, so that the loading hydraulic machine 2 can automatically adjust the loading direction according to the axial direction of the pile foundation, the inclination angle of the pile foundation can be obtained according to the inclination angle of the loading hydraulic machine 2, and the calculation result is more accurate; this kind of measuring device of pile foundation displacement and internal force, simple structure is reasonable, and convenient to use has effectively solved the inconvenient and difficult problem of adjusting of loading direction of the measuring device loading of present most pile foundation displacement and internal force, has higher practical value.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A measuring device for pile foundation displacement and internal force comprises a bearing plate (1) and is characterized in that a loading hydraulic machine (2) is fixedly mounted inside the bearing plate (1), a fixing plate (3) is fixedly mounted on the side face of the bearing plate (1), auxiliary supporting hydraulic cylinders (4) are fixedly mounted at four corners of the bottom of the bearing plate (1), supporting bottom plates (5) are fixedly mounted at the bottoms of the auxiliary supporting hydraulic cylinders (4), a main supporting device (6) is fixedly mounted at the bottom of a piston rod of the loading hydraulic machine (2), the main supporting device (6) comprises a top plate (10), a main supporting hydraulic cylinder (9) is fixedly mounted at the bottom of the top plate (10), a fixing bottom plate (8) is fixedly mounted at the bottom of the main supporting hydraulic cylinder (9), and displacement detection devices (7) are fixedly mounted on two sides of the fixing bottom plate (8), the displacement detection device (7) comprises a support rod (12), a cross beam (11) is fixedly mounted at the top of the support rod (12), a displacement detector (13) is fixedly mounted at the top of the cross beam (11), and the displacement detector (13) is connected with a controller (17) through a pipeline.

2. The device for measuring the displacement and the internal force of the pile foundation according to claim 1, wherein a groove is formed in the middle of the bearing plate (1), the loading hydraulic machine (2) is fixedly installed in the groove, connecting columns are fixedly installed on the periphery of the loading hydraulic machine (2), and the loading hydraulic machine (2) is fixedly installed in the groove through the connecting columns.

3. The device for measuring the displacement and the internal force of the pile foundation according to claim 1, wherein the fixing plates (3) are fixedly arranged on four sides of the bearing plate (1), and the fixing plates (3) are provided with a plurality of through holes.

4. The device for measuring the displacement and the internal force of the pile foundation according to the claim 1, wherein the displacement detector (13) comprises a connecting seat (14), a connecting pipe (15) is fixed on one side of the connecting seat (14), and a displacement probe (16) is fixedly arranged at the bottom of the connecting pipe (15).

5. A pile foundation displacement and internal force measuring device according to claim 4, wherein the connecting base (14) is fixedly mounted on the top of the cross beam (11), and the bottom of the displacement probe (16) abuts against the top of the fixed bottom plate (8).

6. The device for measuring pile foundation displacement and internal force according to claim 1, wherein the controller (17) comprises a casing (18), a display screen (19) is fixedly mounted at the top of the casing (18), the display screen (19) is a touch display screen, a plurality of connectors (20) are fixedly mounted on one side of the casing (18), the connectors (20) are connected with the internal force sensor through pipelines, and the connectors (20) are connected with the displacement detector (13) through pipelines.

7. The device for measuring the displacement and the internal force of the pile foundation according to the claim 6, wherein a handle (21) is fixedly installed on one side of the casing (18), a protective sleeve is sleeved outside the handle (21), and anti-skid textures are arranged outside the protective sleeve.