CN114718126B - Pile foundation bearing capacity detection device and detection method for building - Google Patents
Pile foundation bearing capacity detection device and detection method for building Download PDFInfo
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- CN114718126B CN114718126B CN202210214707.7A CN202210214707A CN114718126B CN 114718126 B CN114718126 B CN 114718126B CN 202210214707 A CN202210214707 A CN 202210214707A CN 114718126 B CN114718126 B CN 114718126B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a pile foundation bearing capacity detection device and a detection method of a building in the technical field of pile foundation bearing capacity detection, and the device comprises a base plate, wherein the top of the base plate is fixedly connected with a pressing mechanism, the pressing mechanism is used for vertically pressing a movable pile foundation downwards, the top of the base plate is provided with a pressure detector, and the pressure detector is positioned right below the pressing mechanism; according to the pile foundation detection device, when the bearing capacity of the pile foundation is detected each time, the placing mechanism, the turnover mechanism and the abutting mechanism are matched with each other, the pile foundation is inserted into the turnover mechanism only by a person, the pile foundation is automatically and accurately and quickly turned to the vertical state to be detected, a large amount of loading time and labor force are saved, the detection efficiency is improved, the risk during loading is reduced, the pile foundation is easy to topple in the vertical process, and the pile foundation detection device is convenient and quick.
Description
Technical Field
The invention relates to the technical field of pile foundation bearing capacity detection, in particular to a device and a method for detecting the pile foundation bearing capacity of a building.
Background
The pile foundation is a supporting member for transmitting the load of the upper structure to the rock-soil foundation and plays an important role in the safety of the engineering structure. In order to ensure engineering safety, a load test is usually carried out to determine whether the bearing capacity meets the design requirements or not after pile foundation construction is completed, the loading method of the load test mainly adopts a weight method, an anchor pile method and an anchor pile weight combination method, the load is applied to the top of a pile foundation by adopting the methods during the test, the load of each stage and the settlement of the pile foundation are actually measured, and the size of the bearing capacity of the pile foundation is determined by analyzing a curve of the settlement relation between the load and the pile foundation.
When detecting the bearing capacity of pile foundation among the prior art, need detect the vertical placing of longer pile foundation at detecting bench top, and longer pile foundation not only is difficult to directly promote it to vertical position, and the pile foundation itself is also comparatively heavy, the very personnel of not being convenient for are upright the pile foundation at the detection position, and the pile foundation is vertical back, its bottom is when rotating to vertical state, take place the position easily, with the vertical back of pile foundation, the skew appears easily in its bottom, lead to the pile foundation to shift out the detection position, it is very inconvenient that follow-up is moving vertical pile foundation.
Based on the above, the invention designs a device and a method for detecting the bearing capacity of the pile foundation of a building, so as to solve the above problems.
Disclosure of Invention
The invention aims to provide a device and a method for detecting bearing capacity of a pile foundation of a building, and aims to solve the problems that in the prior art, when the bearing capacity of the pile foundation is detected, a long pile foundation needs to be vertically placed at the top of a detection table for detection, the long pile foundation is difficult to directly push to a vertical position, the pile foundation is heavy, a person is very inconvenient to vertically place the pile foundation at a detection position, the position of the pile foundation is easy to occur when the bottom of the pile foundation is rotated to a vertical state after the pile foundation is vertical, the bottom of the pile foundation is easy to shift after the pile foundation is vertical, the pile foundation is moved out of the detection position, and the vertical pile foundation is inconvenient to move subsequently.
In order to achieve the purpose, the invention provides the following technical scheme: a pile foundation bearing capacity detection device of a building comprises a base plate, wherein a pressing mechanism is fixedly connected to the top of the base plate and used for vertically pressing a pile foundation downwards, a pressure detector is arranged at the top of the base plate and located right below the pressing mechanism, a placing mechanism used for horizontally placing the pile foundation is connected to the top of the base plate, a turnover mechanism used for driving the horizontally placed pile foundation to rotate to a vertical state is connected to the top of the base plate, a pressing mechanism used for pressing against the bottom of the pile foundation is connected to the bottom of the inner side of the turnover mechanism, the pressing mechanism rotates together in the process of turnover of the pile foundation and automatically opens to place the pile foundation on the top of the pressure detector after the pile foundation is turned to the vertical position;
the turnover mechanism comprises two first motors, the two first motors are fixedly connected inside the pressing mechanism, the output ends of the two first motors are fixedly connected with first rotating shafts, the top of the base plate is fixedly connected with a first supporting plate, the first rotating shafts penetrate through the first supporting plate and are rotatably connected with the first supporting plate, turnover plates are fixedly connected to the outer surfaces of the two first rotating shafts, the two turnover plates are respectively positioned at the left side and the right side of the pile foundation, a first fixing frame is fixedly connected to the front ends of the two turnover plates, two clamping plates are jointly and slidably connected inside the two first fixing frames, two-way lead screws are rotatably connected to the inner sides of the two first fixing frames, the two-way lead screws penetrate through the two clamping plates and are in threaded connection with the two clamping plates, the two-way lead screws are used for driving the two clamping plates to open and close, a second motor is fixedly connected to the top ends of the two-way lead screws, and the second motor is fixedly connected to the outer side wall of the first fixing frame;
the abutting mechanism comprises two second rotating shafts, the two second rotating shafts are fixedly connected to the inner ends of the two first rotating shafts respectively, the inner ends of the two second rotating shafts are fixedly connected with a guide plate together, a circular through groove larger than the pile foundation direct direction is formed in the middle of the guide plate, supporting inclined blocks are connected to the upper side and the lower side of the guide plate in a sliding mode, the inclined surfaces of the supporting inclined blocks are located on the inner side of the guide plate, first electric cylinders are fixedly connected to the upper surface and the lower surface of the guide plate, the extending ends of the first electric cylinders are fixedly connected with positioning blocks, the positioning blocks are inserted into the supporting inclined blocks, a second connecting plate is connected to an equal fixing plate on the outer side walls of the two supporting inclined blocks, two first sliding rods are connected to the inner portion of the second connecting plate in a sliding mode, the first sliding rods are fixedly connected to the outer surface of the guide plate, and a first spring fixedly connected between the second connecting plate and the guide plate is sleeved on the outer surface of each first sliding rod;
the bottom of the pressure detector is fixedly connected with a lifting frame, the lifting frame is vertically and slidably connected inside a substrate, a mounting groove is formed inside the substrate, two second supporting plates which are arranged left and right are fixedly connected inside the mounting groove, threaded rods are respectively in threaded connection inside the two second supporting plates, flower-shaped rods are respectively fixedly connected at the inner ends of the two threaded rods, first extrusion blocks are respectively in rotary connection with the inner ends of the two flower-shaped rods, the bottom surfaces of the first extrusion blocks are in contact with the mounting groove, the two extrusion blocks are used for extruding the lifting frame from the left side and the right side, a plurality of second springs are fixedly connected at the bottom of the lifting frame, the bottoms of the second springs are fixedly connected on the mounting groove, two first gears are rotatably connected on the inner side wall of the mounting groove, the first gears are sleeved on the outer surface of the flower-shaped rods, second gears are respectively rotatably connected on the inner side walls of the two first supporting plates, the second gears are sleeved on the outer surface of a first rotating shaft, the second gears are in transmission connection with the first gears through first toothed chains, first shifting blocks are fixedly connected on the two inner side walls, and are used for shifting blocks when the pile foundation rotates to a vertical state;
the placing mechanism comprises a plurality of bearing blocks, and the tops of the bearing blocks are in an arc shape consistent with the outer surface of the pile foundation;
the pressing mechanism comprises two first support frames, the two first support frames are fixedly connected to the top of the base plate, the top ends of the two first support frames are fixedly connected with a first fixing plate together, and the bottom of the first fixing plate is fixedly connected with a hydraulic cylinder which is positioned right above the pressure detector;
the top of the base plate is fixedly connected with a third motor, the output end of the third motor is fixedly connected with a first rotating rod, the first rotating rod is rotatably connected to the top of the base plate and lower than the arc-shaped surface of the bearing block, and the outer surface of the first rotating rod is fixedly connected with an extrusion plate which is used for extruding the front end of a pile foundation;
a method for detecting the bearing capacity of a pile foundation of a building comprises the following specific steps:
the method comprises the following steps: the turnover mechanism is in a horizontal position, a pile foundation needing bearing capacity detection is inserted into the turnover mechanism and placed at the top of the placement mechanism, and the bottom end of the pile foundation is in contact with the abutting mechanism;
step two: the pile foundation overturning method comprises the following steps that an overturning mechanism is started, the overturning mechanism clamps a pile foundation from the middle part, drives the pile foundation and a resisting mechanism to rotate together, and slowly overturns the pile foundation to be in a vertical state;
step three: the abutting mechanism is opened, the turnover mechanism is opened, and the pile foundation is slowly and vertically placed on the top of the pressure detector;
step four: starting a pressing mechanism, wherein the pressing mechanism downwards extrudes the pile foundation from the top end of the pile foundation, and a pressure detector positioned at the bottom of the pile foundation displays the pressure borne by the pile foundation in real time, so that the bearing capacity of the pile foundation is accurately detected;
step five: after the detection is finished, the turnover mechanism clamps the pile foundation again and turns over to the horizontal position, and the pile foundation is taken out by personnel conveniently.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, when the bearing capacity of the pile foundation is detected each time, the placing mechanism, the turnover mechanism and the abutting mechanism are matched with each other, the pile foundation is inserted into the turnover mechanism only by a person, the pile foundation is automatically and accurately and quickly turned to the vertical state for detection, a large amount of loading time and labor force for loading are saved, the detection efficiency is improved, the risk during loading is reduced, and the pile foundation is easy to topple in the vertical process, so that the detection is convenient and fast.
2. According to the invention, after the pile foundation is horizontally inserted between the two opened clamping plates, the two second motors are simultaneously started, the two second motors drive the two-way screw rods to rotate, the two clamping plates are synchronously driven to approach the pile foundation, the pile foundation is clamped, and the overturning stability is improved.
Drawings
FIG. 1 is a flow chart of a pile foundation bearing capacity detection method of the present invention;
FIG. 2 is a first perspective view of the overall construction of the present invention;
FIG. 3 is a second perspective view of the general construction of the present invention;
FIG. 4 is a schematic view of a structure of a tightening mechanism according to the present invention;
FIG. 5 is a schematic diagram of the top structure of the substrate (hidden pressing mechanism) according to the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 5;
FIG. 7 is a cross-sectional view of the internal structure of the substrate according to the present invention;
FIG. 8 is a schematic view of a substrate top turnover mechanism according to the present invention;
FIG. 9 is a schematic view of a first extrusion block and its outboard attachment mechanism of the present invention;
fig. 10 is an enlarged view of the structure at B in fig. 9.
In the drawings, the reference numbers indicate the following list of parts:
the device comprises a base plate 1, a pressure detector 2, a first motor 3, a first rotating shaft 4, a first supporting plate 5, a turnover plate 6, a first fixing frame 7, a clamping plate 8, a bidirectional screw rod 9, a second motor 10, a second rotating shaft 11, a guide plate 12, a circular through groove 13, a supporting inclined block 14, a first electric cylinder 15, a positioning block 16, a second connecting plate 17, a first sliding rod 18, a first spring 19, a lifting frame 20, a mounting groove 21, a second supporting plate 22, a threaded rod 23, a flower-shaped rod 24, a first extrusion block 25, a second spring 26, a first gear 27, a second gear 28, a first toothed chain 29, a first toggle block 30, a second toggle block 31, a bearing block 32, a first supporting frame 33, a first fixing plate 34, a hydraulic cylinder 35, a third motor 36, a first rotating rod 37 and an extrusion plate 38.
Detailed Description
Referring to fig. 1-10, the present invention provides a technical solution: a pile foundation bearing capacity detection device of a building comprises a substrate 1, wherein a pressing mechanism is fixedly connected to the top of the substrate 1 and used for vertically pressing a pile foundation downwards, a pressure detector 2 is arranged at the top of the substrate 1, the pressure detector 2 is positioned under the pressing mechanism, a placing mechanism used for horizontally placing the pile foundation is connected to the top of the substrate 1, a turnover mechanism used for driving the horizontally placed pile foundation to rotate to a vertical state is connected to the top of the substrate 1, a pressing mechanism used for pressing against the bottom of the pile foundation is connected to the bottom of the inner side of the turnover mechanism, the pressing mechanism rotates together in the process of turnover of the pile foundation and automatically opens to place the pile foundation on the top of the pressure detector 2 after the pile foundation is turned to a vertical position;
when the device is in operation, the turnover mechanism is in a horizontal position, a pile foundation needing bearing capacity detection is inserted into the turnover mechanism and is placed at the top of the placement mechanism, the pile foundation is enabled to be in a horizontally placed state, the pile foundation is conveniently and quickly clamped by the subsequent turnover mechanism, personnel horizontally insert the pile foundation into the turnover mechanism and the placement mechanism, time and labor are saved, the bottom end of the pile foundation is enabled to be in contact with the abutting mechanism, then the turnover mechanism is started, the turnover mechanism firstly clamps the pile foundation from the middle part, the phenomenon that the pile foundation slides out in the process of overturning to the vertical state is avoided, the stability of overturning is improved, after the pile foundation is clamped, the turnover mechanism drives the pile foundation and the abutting mechanism to rotate together, the pile foundation is slowly overturned to the vertical state, the abutting mechanism is supported between the pressing mechanism and the pressure detection mechanism after the pile foundation is driven to overturn, then the abutting mechanism is opened and is placed on the top end of the pressure detector 2, and the pile foundation can be conveniently and automatically and the pressure detection of the pile foundation can be conveniently detected in a real-time, thereby realize carrying out bearing capacity to the pile foundation at every turn and detecting time, utilize the mechanism of placing, tilting mechanism and support mutually supporting of tight mechanism, only need personnel's level to insert the pile foundation in tilting mechanism, automatic with pile foundation accuracy, quick upset to vertical state, detect, saved the labour of a large amount of material loading time and material loading, improve detection efficiency, risk when reducing the material loading appears empting the vertical process of pile foundation easily, convenient and fast.
As a further scheme of the invention, the turnover mechanism comprises two first motors 3, the two first motors 3 are fixedly connected inside the pressing mechanism, the output ends of the two first motors 3 are fixedly connected with first rotating shafts 4, the top of the base plate 1 is fixedly connected with a first supporting plate 5, the first rotating shafts 4 penetrate through the first supporting plate 5 and are rotatably connected with the first supporting plate, turnover plates 6 are fixedly connected on the outer surfaces of the two first rotating shafts 4, the two turnover plates 6 are respectively positioned at the left side and the right side of the pile foundation, the front ends of the two turnover plates 6 are fixedly connected with first fixed frames 7, two clamping plates 8 are commonly and slidably connected inside the two first fixed frames 7, two-way screw rods 9 are rotatably connected inside the two first fixed frames 7, the two-way screw rods 9 penetrate through the two clamping plates 8 and are in threaded connection with the two clamping plates 8, the two-way screw rods 9 are used for driving the two clamping plates 8 to open and close, the top ends of the two-way screw rods 9 are fixedly connected with second motors 10, and the second motors 10 are fixedly connected on the outer side walls of the first fixed frames 7; during operation, because the pile foundation that need place the level is safe, stable automatic vertical is detecting the position, after the pile foundation is inserted between two clamp plates 8 of opening by the level, start two second motors 10 simultaneously, two-way lead screws 9 of two second motor 10 drive rotate, synchronous drive helps two clamp plates 8 to be close to the pile foundation, press from both sides the pile foundation tightly, improve the stability of upset, after clamp plate 8 presss from both sides the pile foundation tightly, start two first motors 3, first motor 3 drives two first pivots 4 and rotates, first pivot 4 drives the returning face plate 6 and rotates, returning face plate 6 drives first fixed frame 7, clamp plate 8 and pile foundation together upset, thereby overturn the pile foundation that the level was placed to vertical position steadily, high convenience and quickness, save a large amount of material loading time and labour, reduce the safe risk of loading.
As a further scheme of the invention, the abutting mechanism comprises two second rotating shafts 11, the two second rotating shafts 11 are respectively and fixedly connected to the inner ends of the two first rotating shafts 4, the inner ends of the two second rotating shafts 11 are jointly and fixedly connected with a guide plate 12, a circular through groove 13 larger than the pile foundation direct direction is formed in the middle of the guide plate 12, the upper side and the lower side of the guide plate 12 are respectively and slidably connected with a supporting inclined block 14, the inclined surface of each supporting inclined block 14 is positioned on the inner side of the guide plate 12, the upper surface and the lower surface of the guide plate 12 are respectively and fixedly connected with a first electric cylinder 15, the extending end of each first electric cylinder 15 is fixedly connected with a positioning block 16, the positioning block 16 is inserted into each supporting inclined block 14, a second connecting plate 17 is fixedly connected to the outer side wall of each supporting inclined block 14, two first sliding rods 18 are slidably connected to the inside of the second connecting plate 17, the first sliding rods 18 are respectively and fixedly connected to the outer surface of the guide plate 12, and a first spring 19 fixedly connected between the second connecting plate 17 and the guide plate 12 is sleeved on the outer surface of each first sliding rod 18; in operation, because in the process of pile foundation upset, pile foundation gravity is great, only utilize two clamp plates 8 to press from both sides the pile foundation tightly, the phenomenon that the pile foundation slided downwards in the upset process appears easily, through the in-process that the pile foundation is pressed from both sides the clamp and overturns, first pivot 4 drives two second pivot 11 synchronous rotations, two second pivot 11 drive deflector 12 and rotate, this moment, the bottom of pile foundation is located the circular logical groove 13 of deflector 12, and the bottom of pile foundation is located two support sloping blocks 14, two support sloping blocks 14 support the bottom of pile foundation tightly, the convenience of people's pile foundation gliding, in the rotation process of pile foundation, deflector 12 follows the pile foundation and rotates, continuously support it, the stability is improved, and when the pile foundation rotates to vertical state, start two first electric cylinders 15, first electric cylinder 15 drives locating piece 16 and withdraws from support sloping block 14, after locating piece 16 withdraws from support sloping block 14, pile foundation effect supports sloping block 14 and makes support sloping block 14 outwards to move, stimulate first spring 19, make the automatic whereabouts of pile foundation to the top of pressure detector 2, carry out subsequent detection.
As a further scheme of the invention, a lifting frame 20 is fixedly connected to the bottom of the pressure detector 2, the lifting frame 20 is vertically and slidably connected to the inside of the base plate 1, an installation groove 21 is formed in the base plate 1, two second support plates 22 arranged left and right are fixedly connected to the inside of the installation groove 21, threaded rods 23 are respectively and fixedly connected to the insides of the two second support plates 22, flower-shaped rods 24 are respectively and fixedly connected to the insides of the two flower-shaped rods 24, first extrusion blocks 25 are respectively and rotatably connected to the insides of the installation groove 21, the bottom surfaces of the first extrusion blocks 25 are in contact with the installation groove 21, the two extrusion blocks are used for extruding the lifting frame 20 from the left and right sides, a plurality of second springs 26 are fixedly connected to the bottom of the lifting frame 20, the bottoms of the second springs 26 are respectively and fixedly connected to the installation groove 21, two first gears 27 are rotatably connected to the inside wall of the installation groove 21, the first gears 27 are respectively and sleeved on the outer surface of the flower-shaped rods 24, second gears 28 are respectively and rotatably connected to the inside walls of the two first support plates 5, the second gears 28 are respectively and fixedly connected to the outer surface of the first turning block 30, and the second turning block 31 are respectively and are used for vertically and fixedly connected to the turning block 31 when the turning block 31; in operation, because when the pile foundation rotates, the vertical position whereabouts, the pile foundation exists a certain distance from pressure detector 2, the pile foundation of whereabouts can cause the impact to pressure detector 2, after many times of action, may lead to pressure detector 2 to damage, through in-process that will overturn to vertical state together at first pivot 4 and pile foundation, returning plate 6 drives second shifting block 31 of fixed connection at its top and rotates together, when the pile foundation will overturn to vertical state, second shifting block 31 continues to rotate and can extrude first shifting block 30, make first shifting block 30 and second gear 28 rotate together, second gear 28 drives first gear 27 through first toothed chain 29 and rotates, thereby make flower type pole 24, threaded rod 23 rotate, threaded rod 23 is acted on by second backup pad 22 and inwards move, drive flower type pole 24 and first extrusion block 25 and inwards move in step, two first extrusion blocks 25 upwards together push lifting frame 20 upwards from the left and right sides together and upwards move pressure detector 2 together upwards, when the pile foundation rotates to vertical state, first shifting block 25 and first extrusion block 20 and second extrusion block 25 move inwards in step, it drives the bottom of lifting frame 20 and the bottom of the first extrusion block to push back to the pressure detector 2 to the bottom of the first extrusion block, it is great distance to push back to the detection, it is convenient to push back to push away from the first extrusion block to the second extrusion block, the first extrusion block 25, it is great distance to reduce the pressure detection, it is great that the first extrusion block to the first extrusion block that the pressure detection is carried out and the pressure detection, it is carried out, it is convenient to push down to reduce, it is more.
As a further scheme of the invention, the placing mechanism comprises a plurality of bearing blocks 32, and the tops of the bearing blocks 32 are in an arc shape consistent with the outer surface of the pile foundation; the during operation, because when the processing pile foundation inserts inside tilting mechanism, the pile foundation is not by the centre gripping, the slope phenomenon appears easily, is unfavorable for personnel to put into the pile foundation, and is unfavorable for the length of stretching into of accurate control pile foundation, through two carrier blocks 32 that set up at base plate 1 top, utilizes the arcwall face at two carrier blocks 32 tops to carry out the horizontally with cylindrical pile foundation and bears, the follow-up regulation and the upset of being convenient for.
As a further scheme of the invention, the pressing mechanism comprises two first supporting frames 33, the two first supporting frames 33 are both fixedly connected to the top of the substrate 1, the top ends of the two first supporting frames 33 are fixedly connected with a first fixing plate 34 together, the bottom of the first fixing plate 34 is fixedly connected with a hydraulic cylinder 35, and the hydraulic cylinder 35 is positioned right above the pressure detector 2; when the pile foundation is turned over to be in a vertical state, the hydraulic cylinder 35 is started to move downwards, the pile foundation is extruded, and pressure detection is carried out.
As a further scheme of the present invention, a third motor 36 is fixedly connected to the top of the base plate 1, a first rotating rod 37 is fixedly connected to an output end of the third motor 36, the first rotating rod 37 is rotatably connected to the top of the base plate 1, the first rotating rod 37 is lower than an arc-shaped surface of the bearing block 32, an extrusion plate 38 is fixedly connected to an outer surface of the first rotating rod 37, and the extrusion plate 38 is used for extruding the front end of a pile foundation; in operation, because when in the mechanism is placed to processing pile foundation level packing, the bottom of pile foundation probably does not with support tight mechanism contact, the pile foundation does not insert to the bottom promptly, support the bottom that tight mechanism did not support the pile foundation, lead to the stability of pile foundation in the upset in-process to reduce, through after packing the pile foundation into, start third motor 36, third motor 36 drives first bull stick 37 and rotates, thereby make stripper plate 38 upset, stripper plate 38 that itself is in the carrier block 32 bottom can avoid it to block the material loading, the top of extrusion pile foundation when stripper plate 38 overturns, promote the pile foundation slowly to the rear side, finally when stripper plate 38 overturns to vertical state, support the bottom of pile foundation on supporting tight mechanism, support tight back, tilting mechanism presss from both sides tightly, stripper plate 38 resets, avoid influencing the pile foundation upset, improve subsequent upset stability.
A method for detecting the bearing capacity of a pile foundation of a building comprises the following steps:
the method comprises the following steps: the turnover mechanism is in a horizontal position, a pile foundation needing bearing capacity detection is inserted into the turnover mechanism and placed at the top of the placement mechanism, and the bottom end of the pile foundation is in contact with the abutting mechanism;
step two: starting the turnover mechanism, clamping the pile foundation from the middle part of the turnover mechanism, driving the pile foundation and the abutting mechanism to rotate together by the turnover mechanism, and slowly turning the pile foundation to a vertical state;
step three: the abutting mechanism is opened, the turnover mechanism is opened, and the pile foundation is slowly and vertically placed on the top of the pressure detector 2;
step four: starting a pressing mechanism, extruding the pile foundation downwards from the top end of the pile foundation, and displaying the pressure born by the pile foundation in real time by a pressure detector 2 positioned at the bottom of the pile foundation, so as to accurately detect the bearing capacity of the pile foundation;
step five: after the detection is finished, the turnover mechanism clamps the pile foundation again and turns over to the horizontal position, and the pile foundation is taken out by personnel conveniently.
Claims (6)
1. The utility model provides a pile foundation bearing capacity detection device of building, includes base plate (1), its characterized in that: the pile foundation overturning mechanism is characterized in that a pressing mechanism is fixedly connected to the top of the base plate (1), the pressing mechanism is used for vertically pressing the pile foundation downwards, a pressure detector (2) is arranged on the top of the base plate (1), the pressure detector (2) is located right below the pressing mechanism, a placing mechanism used for horizontally placing the pile foundation is connected to the top of the base plate (1), an overturning mechanism used for driving the horizontally placed pile foundation to rotate to a vertical state is connected to the top of the base plate (1), a pressing mechanism used for pressing against the bottom of the pile foundation is connected to the bottom of the inner side of the overturning mechanism, the pressing mechanism rotates together in the pile foundation overturning process and automatically opens to place the pile foundation on the top of the pressure detector (2) after the pile foundation overturns to a vertical position;
the turnover mechanism comprises two first motors (3), the two first motors (3) are fixedly connected inside the pressing mechanism, the output ends of the two first motors (3) are fixedly connected with first rotating shafts (4), the top of the base plate (1) is fixedly connected with first supporting plates (5), the first rotating shafts (4) penetrate through the first supporting plates (5) and are rotatably connected with the first supporting plates, turnover plates (6) are fixedly connected to the outer surfaces of the two first rotating shafts (4), the two turnover plates (6) are respectively positioned on the left side and the right side of a pile foundation, the front ends of the two turnover plates (6) are fixedly connected with first fixed frames (7), the two first fixed frames (7) are internally and jointly and slidably connected with two clamping plates (8), the inner sides of the two first fixed frames (7) are rotatably connected with two-way lead screws (9), the two-way lead screws (9) penetrate through the two clamping plates (8) and are in threaded connection with the two clamping plates (8), the two-way lead screws (9) are used for driving the two clamping plates (8) to be closed, the top ends of the two-way lead screws (9) are fixedly connected with second motor outer side walls (10), and the second motor (10) is fixedly connected with the second fixed frames (7);
support tight mechanism and include two second pivot (11), two second pivot (11) fixed connection respectively is in the inner of two first pivots (4), two the common fixedly connected with deflector (12) in the inner of second pivot (11), deflector (12) middle part is seted up and is greater than the direct circular logical groove (13) of pile foundation, the equal sliding connection in upper and lower both sides of deflector (12) has support sloping block (14), the inclined plane that supports sloping block (14) is located the inboard of deflector (12), just equal fixedly connected with first electric jar (15) on the upper and lower surface of deflector (12), the end fixedly connected with locating piece (16) that stretches out of first electric jar (15), locating piece (16) insert and support in sloping block (14), two equal fixed plate is connected with second connecting plate (17) on support sloping block (14) lateral wall, second connecting plate (17) internal sliding connection has two first slide bars (18), equal fixed connection of first slide bar (18) is on the surface of deflector (12), and every equal fixed plate is equipped with first slide bar (19) and spring connecting plate (17) cover on first slide bar (18).
2. The building pile foundation bearing capacity detection device according to claim 1, characterized in that: the pressure detector (2) is fixedly connected with a lifting frame (20) at the bottom, the lifting frame (20) is vertically connected in the base plate (1) in a sliding manner, a mounting groove (21) is formed in the base plate (1), two second support plates (22) which are arranged left and right are fixedly connected in the mounting groove (21), two threaded rods (23) are connected in the second support plates (22) in an internal uniform threaded manner, two flower-shaped rods (24) are fixedly connected in the inner end of the threaded rods (23), two first extrusion blocks (25) are rotatably connected in the inner end of the flower-shaped rods (24), the first extrusion blocks (25) are in contact with the mounting groove (21), two extrusion blocks are used for extruding the lifting frame (20) from the left side and the right side, a plurality of second springs (26) are fixedly connected in the bottom of the lifting frame (20), the second springs (26) are fixedly connected in the mounting groove (21), two first gears (27) are rotatably connected in the inner side wall of the mounting groove (21), the first gears (27) are sleeved on the outer surface of the flower-shaped rods (24), the two first support plates (5) are fixedly connected in the inner side wall of the first gears (28), and are connected in a transmission shaft (28) connected in the first gear (28) and connected in the first gear (28) through a first gear (28), two equal fixedly connected with first stirring block (30), two on first gear (27) inside wall equal fixedly connected with second stirring block (31) on returning face plate (6) surface, second stirring block (31) are used for stirring first stirring block (30) and second gear (28) when the pile foundation will overturn to vertical state and rotate.
3. The building pile foundation bearing capacity detection device of claim 1, wherein: the placing mechanism comprises a plurality of bearing blocks (32), and the tops of the bearing blocks (32) are in an arc shape consistent with the outer surface of the pile foundation.
4. The building pile foundation bearing capacity detection device of claim 1, wherein: the mechanism that pushes down includes two first support frames (33), two the equal fixed connection of first support frame (33) is at the top of base plate (1), two the first fixed plate (34) of the common fixedly connected with in top of first support frame (33), first fixed plate (34) bottom fixedly connected with pneumatic cylinder (35), pneumatic cylinder (35) are located pressure detector (2) directly over.
5. The building pile foundation bearing capacity detection device of claim 1, wherein: the top fixedly connected with third motor (36) of base plate (1), the first bull stick (37) of output fixedly connected with of third motor (36), first bull stick (37) rotate the top of connecting at base plate (1), just first bull stick (37) are less than the arcwall face of carrier block (32), fixedly connected with stripper plate (38) on the surface of first bull stick (37), stripper plate (38) are used for the front end of extrusion pile foundation.
6. A method for detecting the bearing capacity of a pile foundation of a building is suitable for a device for detecting the bearing capacity of the pile foundation of the building according to any one of claims 1 to 5, and is characterized in that: the detection method comprises the following specific steps:
the method comprises the following steps: the turnover mechanism is in a horizontal position, a pile foundation needing bearing capacity detection is inserted into the turnover mechanism and placed at the top of the placement mechanism, and the bottom end of the pile foundation is in contact with the abutting mechanism;
step two: starting the turnover mechanism, clamping the pile foundation from the middle part of the turnover mechanism, driving the pile foundation and the abutting mechanism to rotate together by the turnover mechanism, and slowly turning the pile foundation to a vertical state;
step three: the abutting mechanism and the turnover mechanism are opened, and the pile foundation is slowly and vertically placed on the top of the pressure detector (2);
step four: starting a pressing mechanism, wherein the pressing mechanism downwards extrudes the pile foundation from the top end of the pile foundation, and a pressure detector (2) positioned at the bottom of the pile foundation displays the pressure borne by the pile foundation in real time, so that the bearing capacity of the pile foundation is accurately detected;
step five: after the detection is finished, the turnover mechanism clamps the pile foundation again and turns over to the horizontal position, and the pile foundation is taken out by personnel conveniently.
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| CN117966785B (en) * | 2024-03-29 | 2024-05-28 | 苏州建设（集团）有限责任公司 | Pile foundation fixing structure for civil construction engineering |
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| CN111749237A (en) * | 2020-07-02 | 2020-10-09 | 天津港航工程有限公司 | Pile turning equipment for marine large-diameter steel pipe pile and pile turning construction method thereof |
| CN215630217U (en) * | 2021-07-22 | 2022-01-25 | 广东特思工程检测有限公司 | Efficient pile foundation bearing capacity detection device |
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