CN117432011B - Pile foundation anti-pulling capability detection device - Google Patents
Pile foundation anti-pulling capability detection device Download PDFInfo
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- CN117432011B CN117432011B CN202311431285.XA CN202311431285A CN117432011B CN 117432011 B CN117432011 B CN 117432011B CN 202311431285 A CN202311431285 A CN 202311431285A CN 117432011 B CN117432011 B CN 117432011B
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- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 238000003466 welding Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- Engineering & Computer Science (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model relates to the field of foundation structure tests, in particular to a pile foundation anti-pulling capacity detection device which comprises a connection assembly, a power assembly and a support assembly, wherein the connection assembly is used for connecting steel bars of a pile foundation to be tested, and the power assembly is arranged between the connection assembly and the pile foundation to be tested and is connected with the connection assembly. According to the utility model, the sleeve, the side plates and the first adjusting component are arranged, when the steel bars and the power component are required to be connected, the first adjusting component adjusts the distance between the sleeve and the side plates, so that the sleeve and the side plates are close to each other, the bent steel bars are straightened, after the steel bars are straightened, the first adjusting component continuously adjusts the distance between the sleeve and the side plates, so that the positive pressure between the sleeve and the steel bars and between the side plates and the steel bars is increased, the steel bars are clamped so as to facilitate detection, and after detection, the sleeve and the side plates are far away from each other, so that disassembly can be completed, welding the steel bars and cutting off the steel bars after detection are not required, and the working efficiency is higher.
Description
Technical Field
The utility model relates to the field of foundation structure tests, in particular to a pile foundation anti-pulling capability detection device.
Background
The single pile anti-pulling static load test of the pile foundation refers to a test method for applying vertical upward acting force on the top of the pile foundation and observing the upward pulling displacement generated by the whole pile body under the action of certain time so as to determine the corresponding single pile anti-pulling bearing capacity.
The current Chinese patent of the utility model with the publication number of CN213867973U discloses a pile foundation anti-pulling detection device, when the device is used for connecting the steel bars on the pile foundation, the connection between the steel bars in the pile foundation to be detected and a plurality of steel bars on the periphery of a connecting plate is realized through welding, however, the following defects exist: if the steel bars on the pile foundation to be measured have a bending part, the steel bars on the pile foundation to be measured need to be straightened firstly, the straightened steel bars can be welded with a plurality of steel bars on the periphery of the connecting plate, and in addition, after the detection of the pulling resistance of the pile foundation is finished, the welded steel bars also need to be sawed off, so that the use is inconvenient.
Disclosure of Invention
Based on this, it is necessary to provide a pile foundation resistance to plucking capability detection device to the current problem that pile foundation resistance to plucking detection device exists, can provide sufficient positive pressure through the mutual approaching of cover shell and curb plate and connect reinforcing bar and power module, need not to weld the reinforcing bar on the pile foundation that awaits measuring, also can straighten crooked reinforcing bar through the mutual approaching of cover shell and curb plate moreover, and construction operation efficiency is higher.
The above purpose is achieved by the following technical scheme:
a pile foundation anti-pulling capability detection device includes:
the connecting assembly is used for connecting the steel bars of the tested pile foundation;
the power assembly is arranged between the connecting assembly and the pile foundation to be tested and is connected with the connecting assembly, and the power assembly is used for applying load to the pile foundation to be tested through the connecting assembly;
the support component is arranged below the power component and is used for supporting the power component;
the connecting component comprises a casing and a side plate, wherein the bottom of the casing is open, the inside of the casing is hollow, the side plate is arranged in the casing, the reinforcing steel bar penetrates into the inside of the casing from the bottom of the casing, and the reinforcing steel bar is positioned between the casing and the side plate;
be provided with first adjusting part between sleeve shell and the curb plate, first adjusting part is used for adjusting the interval between curb plate and the sleeve shell medial surface for sleeve shell and curb plate are close to each other, and then adjust the positive pressure between curb plate and reinforcing bar and sleeve shell and the reinforcing bar.
In one embodiment, the first adjusting component comprises a U-shaped rod and a nut, a connecting hole for installing the U-shaped rod is formed in the sleeve, the U-shaped rod is slidably connected in the connecting hole, the nut is in threaded connection with two ends of the U-shaped rod, and the side plate is connected to the middle of the U-shaped rod.
In one embodiment, the side plate is provided with a plurality of first unidirectional latches on the side surface facing the reinforcing steel bar, the first unidirectional latches are arranged in an upward inclined manner, and the plurality of first unidirectional latches are arranged at intervals along the vertical direction.
In one embodiment, the casing is further provided with a -shaped frame, openings of the -shaped frame face the side plates, two opposite side surfaces of the -shaped frame are inclined surfaces, the size of the openings of the -shaped frame, which are close to the side plates, is larger than that of the openings, which are far away from the side plates, the -shaped frame is multiple, and the -shaped frames are arranged at intervals in the vertical direction.
In one embodiment, the inclined surface is provided with a second unidirectional latch, and the second unidirectional latch is obliquely arranged along a direction opposite to the side plate.
In one embodiment, a pre-tightening force adjusting assembly is further arranged between the casing and the side plate, and the pre-tightening force adjusting assembly is used for adjusting pre-tightening force of the casing and the side plate in the vertical direction.
In one embodiment, the pretightening force adjusting assembly comprises a screw and a threaded rotating block, the screw is arranged on the casing, the axis of the screw is perpendicular to the inner top surface of the casing, the threaded rotating block is connected to the screw in a threaded mode, and the threaded rotating block is connected to the side plate.
In one embodiment, a through groove is formed in the casing, the -shaped frame is connected in the through groove in a sliding manner, a sliding groove extending along the vertical direction is formed in the lower end face of the casing, a positioning plate is elastically connected in the sliding groove, a through hole is formed in the positioning plate, and the positioning plate can slide along the vertical direction;
when the lower end surface of the positioning plate is level with the lower end surface of the shell, the through hole corresponds to the through groove, and the positioning plate does not limit the -shaped frame to slide along the through groove;
when the lower end face of the positioning plate is not flush with the lower end face of the shell, the through hole is not corresponding to the through groove, and the -shaped frame is limited by the positioning plate to slide along the through groove.
In one embodiment, the power assembly comprises a lower base plate, an upper base plate and a hydraulic jack, wherein the upper end face of the hydraulic jack is abutted with the lower end face of the upper base plate, and the lower end face of the hydraulic jack is abutted with the upper end face of the lower base plate.
In one embodiment, the support assembly comprises a cross beam and two side piers, wherein the two side piers are symmetrically arranged by taking the central line of the length direction of the cross beam as a symmetrical axis.
The beneficial effects of the utility model are as follows:
according to the utility model, the sleeve, the side plates and the first adjusting component are arranged, when the steel bars and the power component are required to be connected, the first adjusting component adjusts the distance between the sleeve and the side plates, so that the sleeve and the side plates are close to each other, the bent steel bars are straightened, after the steel bars are straightened, the first adjusting component continuously adjusts the distance between the sleeve and the side plates, so that the positive pressure between the sleeve and the steel bars and between the side plates and the steel bars is increased, the steel bars are clamped so as to facilitate detection, and after detection, the sleeve and the side plates are far away from each other, so that disassembly can be completed, welding the steel bars and cutting off the steel bars after detection are not required, and the working efficiency is higher.
Drawings
FIG. 1 is an overall schematic diagram of a pile foundation anti-pulling capability detection device according to the present utility model;
FIG. 2 is a schematic diagram of a casing structure of a pile foundation anti-pulling capability detecting device according to the present utility model;
FIG. 3 is a schematic structural view of a first adjusting assembly of the pile foundation anti-pulling capability detecting device according to the present utility model;
FIG. 4 is a schematic diagram of the positions of a through slot and a chute in a pile foundation anti-pulling capability detection device according to the present utility model;
FIG. 5 is a schematic diagram of a side plate structure of a pile foundation anti-pulling capability detection device according to the present utility model;
FIG. 6 is a schematic perspective view of a casing in a pile foundation anti-pulling capacity detection device according to the present utility model;
FIG. 7 is a schematic diagram of a -shaped frame structure in a pile foundation anti-pulling capacity detection device;
FIG. 8 is a schematic diagram of a positioning plate structure in a pile foundation anti-pulling capability detection device according to the present utility model.
Wherein:
100. a connection assembly; 110. a casing; 111. a connection hole; 112. a through groove; 113. a chute; 114. a positioning plate; 1141. a through hole; 115. a spring; 120. a side plate; 121. a first unidirectional latch; 130. shaped shelves; 131. a second unidirectional latch; 140. extending a steel column; 150. supporting a steel frame; 160. a limiting ring; 170. an arc-shaped block; 171. an arc-shaped groove; 200. a power assembly; 210. a lower backing plate; 220. a hydraulic jack; 230. an upper backing plate; 300. a support assembly; 310. a cross beam; 320. a side pier; 400. a first adjustment assembly; 410. a U-shaped rod; 420. a nut; 500. a pre-tightening force adjusting component; 510. a screw; 520. a threaded rotating block; 600. reinforcing steel bars.
Detailed Description
The present utility model will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
As shown in fig. 1 to 8, a pile foundation resistance to plucking capability detecting device includes a connection assembly 100, a power assembly 200 and a supporting assembly 300, the connection assembly 100 is used for connecting a reinforcing bar 600 of a pile foundation to be measured, the power assembly 200 is arranged between the connection assembly 100 and the pile foundation to be measured and is connected with the connection assembly 100, the power assembly 200 is used for applying a load to the pile foundation to be measured through the connection assembly 100, the supporting assembly 300 is arranged below the power assembly 200 and is used for supporting the power assembly 200, the connection assembly 100 comprises a casing 110 and a side plate 120, the casing 110 is open at the bottom and hollow inside, the side plate 120 is arranged in the casing 110, the reinforcing bar 600 penetrates into the inside of the casing 110 from the bottom of the casing 110, the reinforcing bar 600 is positioned between the casing 110 and the side plate 120, a first adjusting assembly 400 is arranged between the casing 110 and the side plate 120, and the first adjusting assembly 400 is used for adjusting the interval between the side plates 120 and the inner sides of the casing 110, and further adjusting positive pressure between the side plate 120 and the reinforcing bar 600.
When the device is used, a worker firstly penetrates the steel bar 600 of the pile foundation to be tested from the bottom of the sleeve 110, so that the steel bar 600 is positioned between the sleeve 110 and the side plate 120, the length of the steel bar 600 extending into the sleeve 110 is preferably as long as possible, then the first adjusting assembly 400 is started, the distance between the sleeve 110 and the side plate 120 is gradually reduced, and in the process of gradually reducing the distance between the sleeve 110 and the side plate 120, the sleeve 110 and the side plate 120 straighten the bending part of the steel bar 600 positioned between the sleeve 110 and the side plate 120, so that the whole of the steel bar 600 can be positioned on the same straight line, and the vertical upward load applied to the steel bar 600 by the power assembly 200 through the sleeve 110 can be completely acted on the steel bar 600 of the pile foundation to be tested, so that the detection result is more accurate and reliable; after the casing 110 and the side plate 120 are contacted with the outer peripheral wall of the steel bar 600, the distance between the casing 110 and the side plate 120 is reduced at this time, so that the casing 110 and the side plate 120 clamp the steel bar 600 tightly, and when the steel bar 600 and the side plate 120 and the steel bar 600 and the casing 110 are clamped tightly, large positive pressure exists, so that large friction force exists between the steel bar 600 and the side plate 120 and between the steel bar 600 and the casing 110, and when vertical upward acting force is applied to the casing 110 through the power assembly 200, the casing 110 and the steel bar 600 cannot slide relatively, so that normal detection is ensured, the casing 110 and the steel bar 600 can be disassembled conveniently, time consumption for welding the steel bar 600 and cutting the steel bar 600 is reduced, and the working efficiency is higher.
It should be noted that, a plurality of steel bars 600 are circumferentially and equally arranged on one pile foundation to be tested, so that a plurality of corresponding casings 110 are also provided; it should be noted that, when the reinforcing steel bar 600 is inserted into the casing 110, the lower end surface of the casing 110 is abutted against the upper end surface of the pile foundation to be tested, so that the whole of the reinforcing steel bar 600 extending from the pile foundation to be tested can be straightened.
It should be further noted that, the inclination angle of the steel bar 600 on the pile foundation to be tested on the construction site is usually not very large, and the angle value between the inclination angle and the vertical line is usually less than fifteen degrees, and for extremely individual artificial damage, the steel bar 600 is excessively large in inclination angle, and then manual pre-alignment is still needed, and the device can be used.
In a further embodiment, as shown in fig. 3 and 4, the first adjusting assembly 400 includes a U-shaped rod 410 and a nut 420, the casing 110 is provided with a connection hole 111 for installing the U-shaped rod 410, the U-shaped rod 410 is slidably connected in the connection hole 111, the nut 420 is in threaded connection with two ends of the U-shaped rod 410, the side plate 120 is connected in the middle of the U-shaped rod 410, specifically, an arc block 170 is provided on a side surface of the side plate 120, the arc block 170 is provided with an arc groove 171, an external dimension of the arc groove 171 is adapted to an external dimension of the U-shaped rod 410, and the arc block 170 is located in a U-shaped opening of the U-shaped rod 410 and the U-shaped rod 410 is abutted in the arc groove 171.
When the steel bar 600 is clamped, if only one worker is in the process, the nuts 420 are alternately rotated for a plurality of times by using the wrench, specifically, after one of the nuts 420 rotates for one circle, the other nut 420 rotates for one circle, so that the U-shaped rod 410 can be ensured to slide approximately horizontally, the U-shaped rod 410 drives the side plate 120 to slide, the distance between the side plate 120 and the inner side surface of the casing 110 is reduced, and the inner sides of the side plate 120 and the casing 110 clamp the steel bar 600; when two workers are present, the two nuts 420 can be simultaneously turned by the wrench, so that the U-shaped rod 410 moves horizontally along the connecting hole 111, and thus the U-shaped rod 410 drives the side plate 120 to move horizontally, so that the distance between the side plate 120 and the casing 110 is reduced, and the inner sides of the side plate 120 and the casing 110 clamp the reinforcing steel bar 600.
In a further embodiment, as shown in fig. 5, the side plate 120 is provided with first unidirectional latches 121 on the side facing the reinforcing bar 600, the first unidirectional latches 121 are disposed obliquely upward, and the first unidirectional latches 121 are provided in plurality and the first unidirectional latches 121 are disposed at intervals in the vertical direction.
The first one-way latch 121 is provided to prevent the reinforcing bar 600 from sliding downward with respect to the side plate 120 when the power assembly 200 applies a vertically upward load to the casing 110.
In a further embodiment, as shown in fig. 7, the casing 110 is further provided with a -shaped frame 130, the opening of the -shaped frame 130 faces the side plate 120, two opposite sides of the -shaped frame 130 are inclined planes, the opening of the -shaped frame 130 near the side plate 120 is larger than the opening of the -shaped frame 130 far from the side plate 120, and the plurality of -shaped frames 130 are arranged at intervals along the vertical direction.
For convenience of description, referring to fig. 7, the moving direction of the side plate 120 is defined as a left-right direction, and if the reinforcing bar 600 is bent in the front-rear direction, the reinforcing bar 600 moves from left to right under the pushing action of the side plate 120, and the opening of the frame 130 is reduced from left to right, so that the reinforcing bar 600 is gradually straightened in the front-rear direction under the pushing action of the two inclined surfaces of the frame 130.
In a further embodiment, as shown in fig. 8, a second unidirectional latch 131 is provided on the inclined surface, and the second unidirectional latch 131 is obliquely provided in a direction facing away from the side plate 120. The second one-way latch 131 is provided to prevent the reinforcing bar 600 from sliding leftwards with respect to the -shaped frame 130 when the power assembly 200 applies a vertically upward load to the connection assembly 100.
In a further embodiment, as shown in fig. 6, a pre-tightening force adjusting assembly 500 is further disposed between the casing 110 and the side plate 120, and the pre-tightening force adjusting assembly 500 is used for adjusting the pre-tightening force of the casing 110 and the side plate 120 in the vertical direction, so as to avoid the relative displacement between the casing 110 and the side plate 120 when the power assembly 200 applies a load to the casing 110 in the vertical direction.
In a further embodiment, as shown in fig. 6, the pretension adjustment assembly 500 includes a screw 510 and a screw knob, the screw 510 is disposed on the housing 110 and the axis of the screw 510 is perpendicular to the inner top surface of the housing 110, the screw knob is screwed on the screw 510, and the screw knob 520 is connected on the side plate 120.
After the side plate 120 clamps the steel bar 600, the wrench is used to rotate the threaded rotary block 520 at this time, so that the threaded rotary block 520 rotates and moves downwards by one to two pitches, so that the lower end of the side plate 120 is tightly abutted against the surface of the pile foundation to be tested, and in the process that the power assembly 200 applies a vertical upward load to the casing 110 to detect, deformation displacement of the side plate 120 cannot occur, and thus detection data is inaccurate.
In a further embodiment, as shown in fig. 4 and 6, the casing 110 is provided with a through slot 112, the -shaped frame 130 is slidably connected in the through slot 112, the lower end surface of the casing 110 is provided with a chute 113 extending along a vertical direction, a positioning plate 114 is elastically connected in the chute 113, specifically, the positioning plate 114 is fixedly connected in the chute 113 through a spring 115, the positioning plate 114 is provided with a through hole 1141, the positioning plate 114 can slide along the vertical direction, when the lower end surface of the positioning plate 114 is level with the lower end surface of the casing 110, the through hole 1141 corresponds to the through slot 112, the positioning plate 114 does not limit -shaped frame 130 to slide along the through slot 112, when the lower end surface of the positioning plate 114 is not level with the lower end surface of the casing 110, the through hole 1141 does not correspond to the through slot 112, and the positioning plate 114 limits -shaped frame 130 to slide along the through slot 112.
The above structure is equivalent to a misoperation preventing structure, and the purpose is to ensure that the lower bottom surface of the casing 110 is abutted against the surface of the pile foundation to be tested when the worker uses, and when the lower end surface of the casing 110 is level with the lower end surface of the positioning plate 114, the through hole 1141 on the positioning plate 114 corresponds to the through slot 112, so that the -shaped frame 130 can be mounted on the casing 110 along the through slot 112; if the operator does not operate by mistake, the lower bottom surface of the casing 110 is not abutted against the pile foundation to be tested, then the lower end surface of the chute 113 is not flush with the lower end surface of the casing 110, then the natural through opening 1141 and the through groove 112 are not corresponding, and the -shaped frame 130 cannot be mounted on the casing 110 along the through groove 112, at this time, the operator can be reminded of incorrect operation, and the operator can find problems in time.
In a further embodiment, as shown in fig. 1, the power assembly 200 includes a lower pad 210, an upper pad 230, and a hydraulic jack 220, an upper end surface of the hydraulic jack 220 is abutted against a lower end surface of the upper pad 230, and a lower end surface of the hydraulic jack 220 is abutted against an upper end surface of the lower pad 210. The support assembly 300 includes a cross member 310 and two side piers 320, and the two side piers 320 are symmetrically disposed with respect to a center line of the cross member 310 in a length direction as a symmetry axis.
When the device is used, the side piers 320 are lifted to a detection site through the crane, then the cross beams 310 are lifted above the side piers 320, the two side piers 320 are symmetrically arranged by taking the central line of the length direction of the cross beams 310 as a symmetrical axis, then the lower base plate 210 is lifted to the upper end face of the cross beams 310, the hydraulic jack 220 is lifted to the upper end face of the lower base plate 210, the upper base plate 230 is lifted to the upper end face of the hydraulic jack 220, the upper base plate 230 is connected with the casing 110, at the moment, the telescopic end of the hydraulic jack 220 vertically upwards applies a load, the hydraulic jack 220 vertically upwards applies a load to the upper base plate 230, and the upper base plate 230 vertically upwards applies a load to the casing 110, so that the anti-pulling capacity detection of the pile foundation to be detected is completed.
It should be noted that, to connect the casing 110 and the upper pad 230, the upper end of the casing 110 may be fixedly connected with the extending steel column 140, the upper end of the extending steel column 140 is fixedly connected with the limiting ring 160, the upper end of the upper pad 230 is provided with the supporting steel frame 150, the supporting steel frame 150 is provided with a semi-through groove, the groove width of the semi-through groove is smaller than the diameter of the limiting ring 160, then the extending steel column 140 is penetrated into the semi-through groove and the limiting ring 160 is abutted against the upper end surface of the supporting steel frame 150, and at this time, the vertical upward load applied to the upper pad 230 can be applied to the casing 110 through the supporting steel frame 150, the limiting ring 160 and the extending steel column 140.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (5)
1. Pile foundation resistance to plucking capability detection device, characterized by, include:
the connecting assembly is used for connecting the steel bars of the tested pile foundation;
the power assembly is arranged between the connecting assembly and the pile foundation to be tested and is connected with the connecting assembly, and the power assembly is used for applying load to the pile foundation to be tested through the connecting assembly;
the support component is arranged below the power component and is used for supporting the power component;
the connecting component comprises a casing and a side plate, wherein the bottom of the casing is open, the inside of the casing is hollow, the side plate is arranged in the casing, the reinforcing steel bar penetrates into the inside of the casing from the bottom of the casing, and the reinforcing steel bar is positioned between the casing and the side plate;
a first adjusting component is arranged between the casing and the side plate and is used for adjusting the distance between the side plate and the inner side surface of the casing, so that the casing and the side plate are close to each other, and then positive pressure between the side plate and the steel bar and between the casing and the steel bar is adjusted; the first adjusting component comprises a U-shaped rod and a nut, a connecting hole for installing the U-shaped rod is formed in the sleeve, the U-shaped rod is slidably connected in the connecting hole, the nut is in threaded connection with two ends of the U-shaped rod, and the side plate is connected to the middle of the U-shaped rod; the side face of the side plate, which faces the reinforcing steel bar, is provided with a plurality of first unidirectional latches, the first unidirectional latches are obliquely arranged upwards, and the plurality of first unidirectional latches are arranged at intervals along the vertical direction; the jacket is also provided with a -shaped frame, openings of the -shaped frame face the side plates, two opposite side surfaces of the -shaped frame are inclined surfaces, the size of the openings of the -shaped frame, which are close to the side plates, is larger than that of the openings, which are far away from the side plates, of the -shaped frame, the -shaped frames are multiple, and the -shaped frames are arranged at intervals along the vertical direction; the inclined plane is provided with a second unidirectional latch which is obliquely arranged along the direction opposite to the side plate; the casing is provided with a through groove, the -shaped frame is connected in the through groove in a sliding manner, the lower end face of the casing is provided with a sliding groove extending along the vertical direction, the sliding groove is internally and elastically connected with a positioning plate, the positioning plate is provided with a through opening, and the positioning plate can slide along the vertical direction;
when the lower end surface of the positioning plate is level with the lower end surface of the shell, the through hole corresponds to the through groove, and the positioning plate does not limit the -shaped frame to slide along the through groove;
when the lower end face of the positioning plate is not flush with the lower end face of the shell, the through hole is not corresponding to the through groove, and the -shaped frame is limited by the positioning plate to slide along the through groove.
2. The pile foundation pulling resistance detection device according to claim 1, wherein a pretightening force adjusting assembly is further arranged between the casing and the side plate and used for adjusting pretightening force of the casing and the side plate in the vertical direction.
3. The pile foundation pulling resistance detection device according to claim 2, wherein the pretightening force adjusting assembly comprises a screw and a threaded rotary block, the screw is arranged on the casing, the axis of the screw is perpendicular to the inner top surface of the casing, the threaded rotary block is in threaded connection with the screw, and the threaded rotary block is connected with the side plate.
4. The pile foundation resistance to plucking capability detection device of claim 1, wherein the power assembly comprises a lower base plate, an upper base plate and a hydraulic jack, the upper end face of the hydraulic jack is abutted with the lower end face of the upper base plate, and the lower end face of the hydraulic jack is abutted with the upper end face of the lower base plate.
5. The pile foundation anti-pulling capacity detection device according to claim 1, wherein the supporting assembly comprises a cross beam and two side piers, and the two side piers are symmetrically arranged by taking a central line of the length direction of the cross beam as a symmetrical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311431285.XA CN117432011B (en) | 2023-10-31 | 2023-10-31 | Pile foundation anti-pulling capability detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311431285.XA CN117432011B (en) | 2023-10-31 | 2023-10-31 | Pile foundation anti-pulling capability detection device |
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| CN117432011A CN117432011A (en) | 2024-01-23 |
| CN117432011B true CN117432011B (en) | 2024-03-29 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009131397A2 (en) * | 2008-04-24 | 2009-10-29 | Paik Kyu Ho | Vertical load-carrying test apparatus for piles which has a removable loading apparatus, and a vertical load-carrying test method using the same |
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| CN113059081A (en) * | 2021-04-09 | 2021-07-02 | 日照兴福新型建材有限公司 | Pile head reinforcing steel bar bending device with accurate bending direction |
| CN215715607U (en) * | 2021-08-13 | 2022-02-01 | 广西众诚工程质量检测有限公司 | Concrete filling pile uplift resistance test device |
| CN116516937A (en) * | 2023-04-27 | 2023-08-01 | 中鑫建设集团有限公司 | Reinforcing bar orthotic devices |
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2023
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| WO2009131397A2 (en) * | 2008-04-24 | 2009-10-29 | Paik Kyu Ho | Vertical load-carrying test apparatus for piles which has a removable loading apparatus, and a vertical load-carrying test method using the same |
| CN207934077U (en) * | 2018-01-02 | 2018-10-02 | 德州海联液压科技有限公司 | A kind of foundation pile resistance to plucking detection bearing |
| CN209741942U (en) * | 2019-03-04 | 2019-12-06 | 陕西长地建设工程质量检测有限公司 | Prestressing force counter-force girder steel structure for pile foundation static load test |
| CN211948595U (en) * | 2020-01-16 | 2020-11-17 | 广东正强工程检测鉴定有限公司 | Novel clamp for single-pile vertical uplift static load test |
| CN213296441U (en) * | 2020-09-25 | 2021-05-28 | 无锡市建筑设计研究院有限责任公司 | Pile feeding device for uplift pile |
| CN113059081A (en) * | 2021-04-09 | 2021-07-02 | 日照兴福新型建材有限公司 | Pile head reinforcing steel bar bending device with accurate bending direction |
| CN215715607U (en) * | 2021-08-13 | 2022-02-01 | 广西众诚工程质量检测有限公司 | Concrete filling pile uplift resistance test device |
| CN116516937A (en) * | 2023-04-27 | 2023-08-01 | 中鑫建设集团有限公司 | Reinforcing bar orthotic devices |
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|---|---|
| CN117432011A (en) | 2024-01-23 |
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