CN117888591B - 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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- CN117888591B CN117888591B CN202410288575.1A CN202410288575A CN117888591B CN 117888591 B CN117888591 B CN 117888591B CN 202410288575 A CN202410288575 A CN 202410288575A CN 117888591 B CN117888591 B CN 117888591B
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- 238000001514 detection method Methods 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 7
- 244000309464 bull Species 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing 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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- 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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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a pile foundation bearing capacity detection device and method for a building, and relates to the technical field of pile foundation detection, wherein the pile foundation bearing capacity detection device comprises a bearing capacity detection assembly and a support frame structure; the bearing capacity detection assembly comprises a detection cylinder with an open bottom end, a detection balancing weight is arranged in the detection cylinder in a sliding manner, a clamping round block is fixedly arranged at the top end of the detection balancing weight, and a self-clamping structure for automatically clamping and releasing the detection balancing weight is arranged in the detection cylinder; according to the invention, the cylinder works to push the base table to move downwards, after the two round chamfers are contacted with the cambered surface, the two hanging plates are extruded by the clamping round blocks to open outwards and rotate along the rotating rod, when the two hanging plates continue to move downwards to the bottom of the clamping round blocks, the two swing arms can be pushed to reset to rotate by the elasticity of the reset spring blocks, at the moment, hanging connection of the clamping round blocks can be realized by the two hanging plates, manual hanging is not needed, and the operation is more convenient.
Description
Technical Field
The invention relates to the technical field of pile foundation detection, in particular to a pile foundation bearing capacity detection device and method for a building.
Background
A deep foundation formed by piles and pile caps connected with the tops of the piles or a single pile foundation formed by the piles and the pile caps, which is called pile caps for short, is called a low pile cap pile foundation if the pile shafts are all buried in the soil and the bottom surfaces of the pile caps are contacted with the soil; if the pile body is exposed to the ground and the pile bottom is above the ground, the pile body is called a high pile foundation, and the building pile foundation is usually a low pile foundation.
After the construction of the pile foundation is finished, an operator needs to carry out a load test on the pile foundation to detect the bearing capacity of the pile foundation, and the bearing capacity of the pile foundation is detected by a static load test method and a high strain detection method in the prior art.
The high strain detection method is to strike the pile top through a heavy hammer in a free falling body, so as to obtain related dynamic coefficients and displacement of the pile foundation under impact and sinking, and then apply a specified program to analyze and calculate to obtain pile body integrity parameters and vertical bearing capacity of a single pile.
The existing bearing capacity of pile foundation is detected through the high strain detection method, the heavy hammer is required to be lifted to a certain height through the guide frame matched with the unhooking device and then released, after the heavy hammer is released to impact the pile foundation, the unhooking device and the heavy hammer are required to be hung again through manual operation, the operation is more troublesome, the existing size of pile foundation exposed on the ground before and after the pile foundation is detected is recorded through the tape measure when the depth of pile foundation is detected, the depth of pile foundation downward movement is obtained through the height difference of the pile foundation, but due to poor ground flatness around the pile foundation, the data error of two measurements is larger, and the deviation occurs in the obtained pile foundation downward movement depth.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a pile foundation bearing capacity detection device for a building.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a pile foundation bearing capacity detection device of a building, which comprises a bearing capacity detection assembly and a support frame structure for moving and transferring the bearing capacity detection assembly, wherein the support frame structure is used for supporting the pile foundation bearing capacity detection assembly;
The bearing capacity detection assembly comprises a detection cylinder with an open bottom end, a detection balancing weight is arranged in the detection cylinder in a sliding manner, a T-shaped clamping round block is fixedly arranged at the top end of the detection balancing weight, an arc surface is arranged at the edge of the top end of the clamping round block, and a self-clamping structure for automatically clamping and releasing the detection balancing weight is arranged at the top of the detection cylinder;
The bottom of the bearing capacity detection assembly is provided with a positioning ring assembly which can elastically shrink and can be used for rapidly positioning the bearing capacity detection assembly and the pile foundation, and the top of the positioning ring assembly is positioned at the outer side of the detection cylinder;
a vertical height adjusting assembly for adjusting the position of the bearing capacity detecting assembly is arranged on the outer side of the bearing capacity detecting assembly, and two ends of the vertical height adjusting assembly are connected with a support frame body structure;
The bottom of vertical altitude mixture control subassembly is provided with the displacement detection subassembly that detects the position decline height when detecting pile foundation bearing capacity, displacement detection subassembly's one end setting be the arc and with the outer wall laminating of pile foundation, the other end have the scale and with support frame body structure fixed connection.
As a preferable technical scheme of the invention, the self-clamping structure comprises two opposite swing arms which are respectively in a < type and a > type, the opposite sides of the two swing arms are respectively provided with a first round chamfer, and the first round chamfer is respectively matched and slides and is limited in two arc-shaped grooves formed in the inner wall of the detection cylinder;
The bottom of two the swing arms is provided with the hanging board that is L type relatively respectively, the round hole groove has all been seted up at the positive top of hanging board, round hole inslot rotation is provided with the dwang, the one end of dwang passes the round hole groove and rotates and be provided with the base platform, the base platform cooperatees the slip setting in detecting the drum, and two the bottom of the relative terminal surface of hanging board is provided with round chamfer two.
As a preferable technical scheme of the invention, a limit stop is fixedly arranged between the two hanging plates on the base table, a reset spring block is arranged at the top of the limit stop, limit posts are slidably arranged in the two ends of the reset spring block, fixed baffle plates are fixedly arranged on the opposite end surfaces of the two limit posts, a spherical universal joint is fixedly arranged at the other end of the fixed baffle plates, and one end of the universal joint is rotationally connected with the swing arm;
The middle part that detects the drum top is fixed to be provided with the cylinder, the output of cylinder passes the circular through groove that detects the drum top and sets up and fixing base fixed connection on the base platform, just the extrusion groove that the cross-section was eight style of calligraphy and was used for carrying out extrusion rotation to two swing arms is seted up to the outside that is located the circular through groove on the detection drum.
As a preferable technical scheme of the invention, the support frame body structure comprises a support base, wherein four corners of the top end of the support base are respectively provided with an insertion hole for inserting and fixing steel drills in a penetrating manner, and universal wheels are fixedly arranged at the inner sides of the four insertion holes at the bottom end of the support base;
The top end of the supporting base is provided with a fixing frame with an inverted U-shaped front view, two ends of the back side of the fixing frame are fixedly provided with reinforcing rib plates, and pile foundation limit grooves for surrounding the pile foundations are formed in the middle of one side, away from the reinforcing rib plates, of the supporting base, and the detection cylinder is located right above the pile foundation limit grooves.
As a preferable technical scheme of the invention, the positioning ring assembly comprises a positioning ring with a notch on one side, a plurality of guide sliding columns are symmetrically arranged on two sides of the top end of the positioning ring respectively, the tops of the guide sliding columns are arranged in a guide groove formed in the detection cylinder in a matched sliding manner, and a supporting spring is sleeved on the outer side of the guide sliding column in a matched manner;
The top and the bottom of supporting spring are fixed respectively and are provided with circle piece and fixed pad, the fixed top that sets up at the direction traveller of circle piece and with guide way sliding connection, the fixed pad slides the outside that sets up at the direction traveller and fixed setting in the guide way.
As a preferable technical scheme of the invention, the outside of the round block is fixedly provided with the sliding connecting rods, one ends of a plurality of the sliding connecting rods penetrate through grooves formed in the outer wall of the detection cylinder and are fixedly connected with the same sliding ring, one side of the sliding ring is fixedly provided with the fixed base plate, the outside of the top end of the fixed base plate is penetrated and provided with a penetrating groove for palm insertion, the inside of the penetrating groove on the fixed base plate is in sliding connection with a screw rod, the bottom end of the screw rod is provided with an L shape and is fixedly connected with the detection cylinder, and the outside of the screw rod is positioned at the top end of the fixed base plate and is in matched threaded connection with a limit nut.
As a preferable technical scheme of the invention, the vertical height adjusting assembly comprises two fixed lantern rings, wherein the two fixed lantern rings are respectively and fixedly arranged at the top and the bottom of the outer wall of the detection cylinder, two sides of the two fixed lantern rings are fixedly provided with Z-shaped fixed connecting rods, one end of each fixed connecting rod is fixedly provided with a sliding block, the sliding blocks are matched and slidingly arranged in a sliding groove formed in the fixed frame, and two sliding blocks positioned at the same side are slidingly provided with the same sliding rail;
The hydraulic cylinder is characterized by further comprising a hydraulic cylinder and a connecting substrate, wherein two ends of the connecting substrate are fixedly connected with the back side surfaces of the two fixed lantern rings respectively, a supporting base frame is fixedly arranged at the bottom end of the hydraulic cylinder, two ends of the supporting base frame are fixedly connected with the two reinforcing rib plates respectively, and the output end of the hydraulic cylinder is fixedly connected with the connecting substrate.
As a preferable technical scheme of the invention, the displacement detection assembly comprises an arc-shaped plate and a positioning plate which is positioned at the top of the arc-shaped plate and is contacted with the top end surface of the arc-shaped plate, a first connecting seat is fixedly arranged on the back side of the arc-shaped plate, a fixing column is fixedly arranged in the middle of the first connecting seat, and a telescopic suspension structure is fixedly arranged at one end of the fixing column;
The suspension structure comprises a fixed block, wherein a T-shaped sliding rod is fixedly arranged at the top end of the fixed block, a sliding sleeve is arranged on the outer part of the sliding rod in a matched sliding manner, a jacking spring block is sleeved on the sliding rod and positioned in the sliding sleeve, and the bottom end of the jacking spring block is fixedly connected with the inner wall of the sliding sleeve;
the utility model discloses a fixed block, including fixed block, the fixed block is provided with thin pole in one side, the outside of thin pole one end is provided with the base, set up on the base and be used for thin gliding vertical spout of pole, the one end of thin pole passes vertical spout fixed limiting baffle that is provided with, the both sides of limiting baffle are all fixed and are provided with the pointer, be provided with the scale mark with the pointer is corresponding on the base.
As a preferable technical scheme of the invention, a U-shaped sliding frame is fixedly arranged at the top end of the sliding sleeve, a reverse U-shaped fixing frame sleeve is arranged at the top sliding sleeve of the sliding frame, the fixing frame sleeve is fixedly arranged at the bottom end of the supporting base frame, an electric push rod is fixedly arranged at the inner side of the fixing frame sleeve, and the output end of the electric push rod is fixedly connected with the sliding frame;
The bottom of the front face of the sliding frame is provided with a rectangular through groove for the positioning plate to pass through in a penetrating manner, the inner walls of the two sides of the rectangular through groove are provided with T-shaped sliding grooves, T-shaped sliding blocks are arranged in the T-shaped sliding grooves in a sliding manner, and the two T-shaped sliding blocks are respectively fixedly arranged on the two sides of the positioning plate;
One side on locating plate top is along vertical fixed being provided with rack board, one side of rack board meshes mutually and is provided with the gear, the axle center department of gear is fixed and is provided with the drive bull stick, the outside rotation of drive bull stick is provided with connecting seat two, the both sides of connecting seat two bottoms are all fixed and are provided with the engaging lug, two the engaging lug is fixed respectively and is set up in the both sides of balladeur train.
The invention also provides a pile foundation bearing capacity detection method of the building, which comprises the following steps:
S1: firstly, a pile foundation to be detected is surrounded in a pile foundation limiting groove by pushing a support frame structure, then a fixing base plate is pulled downwards to downwards move a positioning ring and surround the outer side of the pile foundation, and at the moment, the position of the pile foundation in the positioning ring can be adjusted to rapidly position a detection cylinder;
S2: the bottom end surface of the positioning plate is adjusted to be attached to the top end surface of the pile foundation, the arc plate is adjusted to be attached to the side wall of the pile foundation, the top end surface of the arc plate and the top end surface of the pile foundation are located in the same horizontal plane, the positioning plate is separated from the pile foundation through the cooperation of the gear and the rack plate before detection, and the scale pointed by the pointer at the moment is recorded;
s3: the automatic loosening of detection balancing weight is carried out through self-holding structure, at this moment, the detection balancing weight can be done the free fall motion in detecting the drum and hit the pile foundation top, can obtain the power to pile foundation detection through detecting the weight of balancing weight, detect the balancing weight simultaneously also can carry out the contact striking with the arc, the arc can be realized keeping the subsidence of certain degree of depth with the pile foundation like this, then the scale that the pointer was directional this moment is recorded, can obtain the degree of depth that the pile foundation detects the process subsidence through the scale difference around the pile foundation detects, then through the analysis and the calculation of prescribed procedure to data, obtain the vertical bearing capacity of pile foundation.
The beneficial effects of the invention are as follows:
1. This kind of pile foundation bearing capacity detection device of building, cylinder work promotes the base platform down motion, the base platform removes and can drive two swing arms and two hanging boards down motion until with detect the balancing weight contact, after two round chamfer and cambered surface contact, two hanging boards can receive the extrusion of centre gripping circle piece to open to the outside and rotate along the dwang, at this moment along with the rotation of swing arm together, reset spring piece atress is in extrusion state, when two hanging boards continue to move down to the bottom of centre gripping circle piece, through reset spring piece's elasticity, can promote two swing arms and reset and rotate, at this moment can realize hanging the connection to the centre gripping circle piece through two hanging boards, realize carrying out the centre gripping with the detection balancing weight on the pile foundation, do not need the manual operation to hang to put, the operation is comparatively convenient.
2. This kind of pile foundation bearing capacity detection device of building twists drive bull stick and drives the gear and rotate, gear rotation can drive rack board and remove, rack board removes and drives the locating plate and move, remove the top to the pile foundation with the locating plate, then electric putter work promotes balladeur train and locating plate downstream, remove the bottom of locating plate to the top face laminating with the pile foundation, and promote the lateral wall laminating that support base made arc and pile foundation, then reverse twisting drive bull stick, will drive locating plate and pile foundation and separate, when detecting the balancing weight and producing the impact to the pile foundation and move down, the arc then can follow together and remove, the arc removes and can drive fine rod and pointer down simultaneously, through the scale difference of record pointer removal front and back, the degree of depth that can be accurate pile foundation detects the front and back and moves down.
3. This kind of pile foundation bearing capacity detection device of building through seting up the opening on the holding ring, can avoid taking place to interfere with displacement detection subassembly, and the angle of seting up of opening is less than 180, can guarantee that the holding ring is the semicircle ring, can play spacing effect through the holding ring to the detection balancing weight of arranging in on the pile foundation behind falling like this, avoids detecting the balancing weight and appears following the condition that the pile foundation drops.
4. This kind of pile foundation bearing capacity detection device of building, when will detecting the drum and remove to waiting to detect the top of pile foundation, can the fixed base plate of downward pulling drive sliding ring downstream, the sliding ring removes and drives direction traveller and holding ring downstream, until with holding ring down move the package wait to detect the pile foundation, then twist stop nut, elasticity through stop nut and supporting spring fixes the position of holding ring, at this moment can observe the pile foundation in the position of holding ring, then quick removal supporting base drives the holding ring and removes, make the pile foundation just be located the middle part of holding ring, can realize quick position to detecting the drum when detecting.
5. This kind of pile foundation bearing capacity detection device of building, cylinder retract and drive and detect balancing weight upward movement, when removing two swing arms to the extrusion inslot, can extrude the upper pendulum department of two swing arms through the extrusion groove, at this moment two swing arm atress tops can inwards put into and rotate, and the lower hem of two swing arms can drive two hanging boards and rotate to the outside simultaneously, can realize at this moment that to hang and put board and centre gripping circle piece and separate, can realize releasing the counter weight detection piece voluntarily.
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 the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic elevational view of the present invention;
FIG. 2 is a schematic view of the backside structure of the present invention;
FIG. 3 is a schematic view of the connection structure of the vertical height adjustment assembly and the detection cylinder of the present invention;
FIG. 4 is a schematic view of the internal structure of the detection cylinder of the present invention;
FIG. 5 is a schematic view of the self-clamping structure of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5A in accordance with the present invention;
FIG. 7 is a schematic diagram of the present invention when detecting the release of the weight;
FIG. 8 is a schematic view of a retaining ring assembly of the present invention;
FIG. 9 is a schematic diagram of a displacement sensing assembly of the present invention;
FIG. 10 is an enlarged view of a portion of the invention at B of FIG. 9;
Fig. 11 is a bottom view of the displacement detection assembly of the present invention.
In the figure: 10. a load-bearing force detection assembly; 11. a detection cylinder; 12. detecting a balancing weight; 13. clamping the round block; 14. a cambered surface; 15. a self-clamping structure; 151. swing arms; 152. round chamfer I; 153. an arc-shaped groove; 154. hanging a plate; 155. a circular hole groove; 156. a rotating lever; 157. a base table; 158. round chamfer II; 159. a limit stop; 1510. a return spring block; 1511. a limit column; 1512. fixing the baffle; 1513. a universal joint; 1514. a cylinder; 1515. a fixing seat; 1516. an extrusion groove; 20. a support frame body structure; 21. a support base; 22. an insertion hole; 23. a universal wheel; 24. a fixing frame; 25. reinforcing rib plates; 26. pile foundation limit grooves; 30. a retaining ring assembly; 31. a positioning ring; 32. a guide strut; 33. a support spring; 34. round blocks; 35. a fixing pad; 36. a sliding connecting rod; 37. slotting; 38. a slip ring; 39. fixing the substrate; 310. penetrating into the groove; 311. a screw; 312. a limit nut; 40. a vertical height adjustment assembly; 41. a fixed collar; 42. a fixed connecting rod; 43. a sliding block; 44. a slide rail; 45. a hydraulic cylinder; 46. a connection substrate; 47. a supporting base frame; 50. a displacement detection assembly; 51. an arc-shaped plate; 52. a positioning plate; 53. a first connecting seat; 54. fixing the column; 55. a suspension structure; 551. a fixed block; 552. a slide bar; 553. a sliding sleeve; 554. jacking the spring block; 56. a thin rod; 57. a base; 58. a vertical chute; 59. a limiting baffle; 510. a pointer; 511. scale marks; 512. a carriage; 513. a fixing frame sleeve; 514. an electric push rod; 515. rectangular through grooves; 516. a T-shaped slider; 517. rack plate; 518. a gear; 519. driving the rotating rod; 520. a second connecting seat; 521. and a connecting lug.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1 to 5, the pile foundation bearing capacity detection device of the building comprises a bearing capacity detection assembly 10 and a support frame structure 20 for moving and transferring the bearing capacity detection assembly 10;
The bearing capacity detection assembly 10 comprises a detection cylinder 11 with an open bottom end, a detection balancing weight 12 is arranged in the detection cylinder 11 in a sliding manner, a clamping circular block 13 in a T-shaped row is fixedly arranged at the top end of the detection balancing weight 12, an arc surface 14 is arranged at the edge of the top end of the clamping circular block 13, and a self-clamping structure 15 for automatically clamping and releasing the detection balancing weight 12 is arranged at the top of the detection cylinder 11;
the bottom of the bearing capacity detection assembly 10 is provided with a positioning ring assembly 30 which can be elastically contracted and can be used for rapidly positioning the bearing capacity detection assembly 10 and the pile foundation, and the top of the positioning ring assembly 30 is positioned outside the detection cylinder 11;
A vertical height adjusting assembly 40 for adjusting the position of the bearing capacity detecting assembly 10 is arranged on the outer side of the bearing capacity detecting assembly 10, and two ends of the vertical height adjusting assembly 40 are connected with the supporting frame body structure 20;
The bottom of the vertical height adjusting assembly 40 is provided with a displacement detecting assembly 50 for detecting the descending height of the position during pile foundation bearing capacity detection, one end of the displacement detecting assembly 50 is arc-shaped and is attached to the outer wall of the pile foundation, and the other end of the displacement detecting assembly is provided with scales and is fixedly connected with the supporting frame body structure 20.
As shown in fig. 5, 6 and 7, the self-clamping structure 15 includes two opposite swing arms 151 respectively having a < type and a > type, the opposite sides of the two swing arms 151 are respectively provided with a first round chamfer 152, and the first round chamfer 152 is respectively matched and slides and is limited in two arc grooves 153 formed in the inner wall of the detection cylinder 11; the bottom of two swing arms 151 is provided with the link plate 154 that is L relatively respectively, and the positive top of link plate 154 has all been seted up round hole groove 155, and the round hole inslot 155 rotation is provided with dwang 156, and the one end of dwang 156 passes round hole groove 155 and rotates and be provided with base platform 157, and base platform 157 cooperatees the slip setting in detecting cylinder 11, and the bottom of the relative terminal surface of two link plates 154 is provided with round chamfer two 158.
Through two arc grooves 153 of seting up, can be with two swing arms 151 spacing in detecting drum 11, two swing arms 151 can only move along arc groove 153 in vertical direction like this, through set up round chamfer 152 on swing arm 151, when swing arm 151 appears rotating along dwang 156, can avoid and detect between the drum 11 to take place the interference, through set up round chamfer 158 on hanging plate 154, like this when two hanging plates 154 move down and the clamp button 13 contradict the back, can take place to slide between round chamfer 158 and the cambered surface 14, can prop up two hanging plates 154 through clamp button 13 at this moment.
As shown in fig. 5 and 6, a limit stop 159 is fixedly arranged between two hanging plates 154 on the base table 157, a return spring block 1510 is arranged at the top of the limit stop 159, limit posts 1511 are slidably arranged in two ends of the return spring block 1510, fixed baffle plates 1512 are fixedly arranged on opposite end surfaces of the two limit posts 1511, a spherical universal joint 1513 is fixedly arranged at the other end of the fixed baffle plates 1512, and one end of the universal joint 1513 is rotationally connected with the swing arm 151; the middle part at the top end of the detection cylinder 11 is fixedly provided with an air cylinder 1514, the output end of the air cylinder 1514 passes through a circular through groove formed in the top end of the detection cylinder 11 and is fixedly connected with a fixed seat 1515 on the base table 157, and an extrusion groove 1516 with an eight-shaped cross section and used for extruding and rotating the two swing arms 151 is formed in the outer side of the circular through groove on the detection cylinder 11.
In detail, when the cylinder 1514 works to push the base table 157 to move downwards, the base table 157 moves to drive the two swing arms 151 and the two hanging plates 154 to move downwards, after the two round chamfers 158 are contacted with the cambered surface 14, the two hanging plates 154 are pressed by the clamping round block 13 to open outwards and rotate along the rotating rod 156, at this time, along with the rotation of the swing arms 151, the force of the reset spring block 1510 is in a pressed state (the angle of the reset spring block 1510 can be adjusted along with the swing arms 151 through the arrangement of the universal joint 1513), and when the two hanging plates 154 continue to move downwards to the bottom of the clamping round block 13, the two swing arms 151 can be pushed to reset to rotate through the elastic force of the reset spring block 1510, and at this time, the hanging connection of the clamping round block 13 can be realized through the two hanging plates 154;
Further, after the detection balancing weight 12 is clamped, the cylinder 1514 retracts to drive the detection balancing weight 12 to move upwards, when the two swing arms 151 move into the extrusion groove 1516, the upper pendulum parts of the two swing arms 151 can be extruded through the extrusion groove 1516, at this time, the stressed tops of the two swing arms 151 can rotate inwards, and the lower pendulum of the two swing arms 151 can drive the two hanging plates 154 to rotate outwards, so that the hanging plates 154 can be separated from the clamping round block 13, and the detection balancing weight 12 can be automatically released.
As shown in fig. 1 and fig. 2, the supporting frame body structure 20 includes a supporting base 21, four corners at the top end of the supporting base 21 are respectively provided with an insertion hole 22 for inserting and fixing a steel drill, and universal wheels 23 are respectively and fixedly arranged at the bottom end of the supporting base 21 and at the inner sides of the four insertion holes 22; the supporting base 21 top is provided with the front view and is the mount 24 of falling U type, and the both ends of mount 24 dorsal are all fixed to be provided with deep floor 25, and the middle part of supporting base 21 side of keeping away from deep floor 25 has seted up and has been used for encircleing the pile foundation spacing groove 26 that surrounds the pile foundation, detects drum 11 and is located the pile foundation spacing groove 26 directly over.
During detection, the drill steel can be inserted into the insertion hole 22 to be fixed with the ground around the pile foundation to be detected, so that the stability of the position of the support frame structure 20 in the detection process can be improved.
As shown in fig. 3,4 and 8, the positioning ring assembly 30 includes a positioning ring 31 with a notch on one side, two sides of the top end of the positioning ring 31 are symmetrically provided with a plurality of guiding sliding columns 32 respectively, the top of the guiding sliding columns 32 is slidably disposed in a guiding groove formed in the detection cylinder 11 in a matched manner, and a supporting spring 33 is sleeved on the outer side of the guiding sliding columns 32 in a matched manner; the top and bottom of the supporting spring 33 are fixedly provided with a round block 34 and a fixing pad 35 respectively, the round block 34 is fixedly arranged at the top end of the guide slide column 32 and is in sliding connection with the guide groove, and the fixing pad 35 is slidably arranged outside the guide slide column 32 and is fixedly arranged in the guide groove.
Through seting up the opening on holding ring 31, can avoid taking place to interfere with displacement detection subassembly 50, and the angle of seting up of opening is less than 180, can guarantee that holding ring 31 is the semicircle ring, can play spacing effect through holding ring 31 to the detection balancing weight 12 of placing in on the pile foundation behind the decline like this, avoid detecting balancing weight 12 appearance from the condition that the pile foundation drops.
As shown in fig. 3 and 8, the outer sides of the round blocks 34 are fixedly provided with sliding connecting rods 36, one ends of the sliding connecting rods 36 penetrate through grooves 37 formed in the outer wall of the detection cylinder 11 to be fixedly connected with the same sliding ring 38, one side of the sliding ring 38 is fixedly provided with a fixed base plate 39, the outer sides of the top ends of the fixed base plates 39 are penetrated and provided with penetrating grooves 310 for palm insertion, the inner sides of the penetrating grooves 310 on the fixed base plate 39 are slidably inserted with screw rods 311, the bottom ends of the screw rods 311 are L-shaped and fixedly connected with the detection cylinder 11, and the outer parts of the screw rods 311 are located at the top ends of the fixed base plates 39 to be in threaded connection with limit nuts 312 in a matched mode.
In detail, when the detection cylinder 11 is moved to the top of the pile foundation to be detected, the fixing base plate 39 can be pulled downwards to drive the slip ring 38 to move downwards, the slip ring 38 moves to drive the guide strut 32 and the positioning ring 31 to move downwards until the positioning ring 31 moves downwards to surround the pile foundation to be detected, then the limit nut 312 is screwed, the position of the positioning ring 31 is fixed through the elasticity of the limit nut 312 and the supporting spring 33, at this time, the position of the pile foundation in the positioning ring 31 can be observed, then the rapid movement supporting base 21 drives the positioning ring 31 to move, so that the pile foundation is just positioned in the middle of the positioning ring 31, and the rapid positioning of the position of the detection cylinder 11 during detection can be realized.
As shown in fig. 3 and 4, the vertical height adjusting assembly 40 includes two fixing collars 41, the two fixing collars 41 are respectively and fixedly disposed at the top and the bottom of the outer wall of the detection cylinder 11, two sides of the two fixing collars 41 are fixedly provided with a Z-shaped fixing link 42, one end of the fixing link 42 is fixedly provided with a sliding block 43, the sliding blocks 43 are cooperatively and slidingly disposed in a sliding groove formed on the fixing frame 24, and two sliding blocks 43 located at the same side are slidingly provided with the same sliding rail 44; the hydraulic cylinder 45 and the connecting base plate 46 are further included, two ends of the connecting base plate 46 are fixedly connected with the back side surfaces of the two fixing lantern rings 41 respectively, a supporting base frame 47 is fixedly arranged at the bottom end of the hydraulic cylinder 45, two ends of the supporting base frame 47 are fixedly connected with the two reinforcing rib plates 25 respectively, and the output end of the hydraulic cylinder 45 is fixedly connected with the connecting base plate 46.
As shown in fig. 2, 9 and 11, the displacement detection assembly 50 includes an arc plate 51 and a positioning plate 52 located at the top of the arc plate 51 and contacting with the top end surface of the arc plate, a first connecting seat 53 is fixedly arranged on the back side of the arc plate 51, a fixing column 54 is fixedly arranged in the middle of the first connecting seat 53, and a telescopic suspension structure 55 is fixedly arranged at one end of the fixing column 54; the suspension structure 55 comprises a fixed block 551, a T-shaped sliding rod 552 is fixedly arranged at the top end of the fixed block 551, a sliding sleeve 553 is arranged outside the sliding rod 552 in a matched sliding manner, a jacking spring block 554 is sleeved in the sliding sleeve 553 on the sliding rod 552, and the bottom end of the jacking spring block 554 is fixedly connected with the inner wall of the sliding sleeve 553; one side of the fixed block 551 is fixedly provided with a thin rod 56, the outside of thin rod 56 one end is provided with a base 57, a vertical chute 58 for the thin rod 56 to slide is arranged on the base 57, one end of the thin rod 56 passes through the vertical chute 58 to be fixedly provided with a limit baffle 59, two sides of the limit baffle 59 are fixedly provided with pointers 510, and scale marks 511 corresponding to the pointers 510 are arranged on the base 57.
The locating plate 52 is moved to be attached to the top end face of the pile foundation to be detected, the arc plate 51 is attached to the side wall of the pile foundation, the top end of the arc plate 51 and the top end of the pile foundation are located on the same horizontal plane, and when the detection balancing weight 12 impacts the pile foundation to move downwards, the arc plate 51 moves along with the pile foundation.
As shown in fig. 9 and 10, a U-shaped sliding frame 512 is fixedly arranged at the top end of the sliding sleeve 553, an inverted U-shaped fixing frame sleeve 513 is arranged at the top of the sliding frame 512 in a sliding sleeve manner, the fixing frame sleeve 513 is fixedly arranged at the bottom end of the supporting base frame 47, an electric push rod 514 is fixedly arranged at the inner side of the fixing frame sleeve 513, and the output end of the electric push rod 514 is fixedly connected with the sliding frame 512; the bottom of the front surface of the carriage 512 is provided with a rectangular through groove 515 for the positioning plate 52 to pass through in a penetrating way, the inner walls of the two sides of the rectangular through groove 515 are provided with T-shaped sliding grooves, T-shaped sliding blocks 516 are arranged in the T-shaped sliding grooves in a sliding way, and the two T-shaped sliding blocks 516 are respectively and fixedly arranged on the two sides of the positioning plate 52; one side at the top end of the locating plate 52 is fixedly provided with a rack plate 517 along the vertical direction, one side of the rack plate 517 is meshed with and is provided with a gear 518, the axle center of the gear 518 is fixedly provided with a driving rotating rod 519, the outside of the driving rotating rod 519 is rotatably provided with a second connecting seat 520, two sides at the bottom of the second connecting seat 520 are fixedly provided with connecting lugs 521, and the two connecting lugs 521 are respectively fixedly arranged at two sides of the sliding frame 512.
In detail, before the pile foundation is detected, the driving rotating rod 519 is screwed to drive the gear 518 to rotate, the gear 518 rotates to drive the rack plate 517 to move, the rack plate 517 moves to drive the positioning plate 52 to move, the positioning plate 52 moves to the top of the pile foundation, then the electric push rod 514 works to push the sliding frame 512 and the positioning plate 52 to move downwards, the bottom end of the positioning plate 52 moves to be attached to the top end surface of the pile foundation, the supporting base 21 is pushed to attach the arc plate 51 to the side wall of the pile foundation, then the driving rotating rod 519 is screwed reversely to separate the driving positioning plate 52 from the pile foundation, when the detection balancing weight 12 impacts the pile foundation to move downwards, the arc plate 51 moves together, the arc plate 51 moves simultaneously to drive the thin rod 56 and the pointer 510 to move downwards, and the depth of the downward movement of the pile foundation before and after the detection can be accurately obtained by recording the scale difference before and after the pointer 510 moves.
The invention also provides a pile foundation bearing capacity detection method of the building, which comprises the following steps:
S1: firstly, a pile foundation to be detected is surrounded in a pile foundation limiting groove 26 by pushing a support frame structure 20, then a fixing base plate 39 is pulled downwards to downwards move a positioning ring 31 and surround the outer side of the pile foundation, and at the moment, the position of the pile foundation in the positioning ring 31 can be adjusted to rapidly position the detection cylinder 11;
S2: the bottom end surface of the positioning plate 52 is adjusted to be attached to the top end surface of the pile foundation, the arc plate 51 is adjusted to be attached to the side wall of the pile foundation, at the moment, the top end surface of the arc plate 51 and the top end surface of the pile foundation are positioned on the same horizontal plane, the positioning plate 52 is separated from the pile foundation through the cooperation of the gear 518 and the rack plate 517 before detection, and the scale pointed by the pointer 510 at the moment is recorded;
S3: the detection balancing weight 12 is automatically loosened through the self-clamping structure 15, at this time, the detection balancing weight 12 can freely fall in the detection cylinder 11 and hit the pile foundation top, the power for pile foundation detection can be obtained through the weight of the detection balancing weight 12, meanwhile, the detection balancing weight 12 can be in contact with the arc plate 51, the arc plate 51 can be used for keeping sinking of a certain depth with the pile foundation, then the scale of the pointer 510 pointing at this moment is recorded, the sinking depth of the pile foundation detection process can be obtained through the scale difference before and after pile foundation detection, then the data are analyzed and calculated through a specified program, the vertical bearing capacity of the pile foundation is obtained, and the pile foundation is analyzed and calculated through a Case method or a Cap-wape method in the prior art, so that the detailed description is omitted.
Working principle:
Pushing the support base 21 to surround the pile foundation to be detected in the pile foundation limiting groove 26, then adjusting the detection cylinder 11 to a proper position height through the work of the hydraulic cylinder 45, then pulling the fixed base plate 39 downwards to drive the sliding ring 38 to move downwards, driving the guide sliding column 32 and the positioning ring 31 to move downwards until the positioning ring 31 moves downwards to surround the pile foundation to be detected, then screwing the limiting nut 312, fixing the position of the positioning ring 31 through the elasticity of the limiting nut 312 and the support spring 33, then moving the positioning plate 52 to be attached to the top end surface of the pile foundation to be detected, attaching the arc plate 51 to the side wall of the pile foundation, so that the top end of the arc plate 51 and the top end of the pile foundation are positioned at the same horizontal plane, screwing the driving rotating rod 519, separating the driving positioning plate 52 from the pile foundation, and recording scales pointed by the pointer 510 at the moment;
The cylinder 1514 retracts to drive the detection balancing weight 12 to move upwards, when the two swing arms 151 move into the extrusion groove 1516, the upper swinging positions of the two swing arms 151 can be extruded through the extrusion groove 1516, at the moment, the stressed tops of the two swing arms 151 can rotate inwards, meanwhile, the lower swinging of the two swing arms 151 can drive the two hanging plates 154 to rotate outwards, at the moment, the hanging plates 154 can be separated from the clamping round blocks 13, the automatic release of the detection balancing weight 12 is realized, the detection balancing weight 12 performs free falling motion to impact the top end of a pile foundation, the bearing capacity of the pile foundation is detected, at the moment, the arc plate 51 can move downwards along with the pile foundation to the same depth, scales pointed by the pointer 510 after detection are recorded, and the downwards moving depth of the pile foundation can be accurately obtained through the scale difference before and after detection;
After detection is completed, the cylinder 1514 works to push the base table 157 to move downwards, the base table 157 moves to drive the two swing arms 151 and the two hanging plates 154 to move downwards until the two hanging plates contact with the detection balancing weight 12, when the two round chamfer angles II 158 contact with the cambered surface 14, the two hanging plates 154 can be pressed by the clamping round block 13 to open outwards and rotate along the rotating rod 156, at the moment, along with the rotation of the swing arms 151, the force of the reset spring block 1510 is in an extrusion state, when the two hanging plates 154 continue to move downwards to the bottom of the clamping round block 13, the two swing arms 151 can be pushed to reset to rotate through the elasticity of the reset spring block 1510, at the moment, hanging connection of the clamping round block 13 can be realized through the two hanging plates 154, the detection balancing weight 12 on a pile foundation is clamped, manual hanging is not needed, and operation is convenient.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The pile foundation bearing capacity detection device for the building is characterized by comprising a bearing capacity detection assembly and a support frame structure for moving and transferring the bearing capacity detection assembly;
The bearing capacity detection assembly comprises a detection cylinder with an open bottom end, a detection balancing weight is arranged in the detection cylinder in a sliding manner, a T-shaped clamping round block is fixedly arranged at the top end of the detection balancing weight, an arc surface is arranged at the edge of the top end of the clamping round block, and a self-clamping structure for automatically clamping and releasing the detection balancing weight is arranged at the top of the detection cylinder;
The bottom of the bearing capacity detection assembly is provided with a positioning ring assembly which can elastically shrink and can be used for rapidly positioning the bearing capacity detection assembly and the pile foundation, and the top of the positioning ring assembly is positioned at the outer side of the detection cylinder;
the positioning ring assembly comprises a positioning ring with a notch formed in one side, a plurality of guide sliding columns are symmetrically arranged on two sides of the top end of the positioning ring respectively, the tops of the guide sliding columns are arranged in guide grooves formed in the detection cylinder in a matched sliding mode, and supporting springs are sleeved on the outer sides of the guide sliding columns in a matched mode;
The top end and the bottom end of the supporting spring are respectively fixedly provided with a round block and a fixed pad, the round block is fixedly arranged at the top end of the guide sliding column and is in sliding connection with the guide groove, and the fixed pad is slidably arranged outside the guide sliding column and is fixedly arranged in the guide groove;
The outside of the circular block is fixedly provided with sliding connecting rods, one ends of a plurality of the sliding connecting rods penetrate through grooves formed in the outer wall of the detection cylinder and are fixedly connected with the same sliding ring, one side of the sliding ring is fixedly provided with a fixed base plate, the outside of the top end of the fixed base plate is penetrated and provided with penetrating grooves for palm insertion, the inner side of the penetrating grooves on the fixed base plate is in sliding connection with a screw rod, the bottom end of the screw rod is L-shaped and is fixedly connected with the detection cylinder, and the outer part of the screw rod is positioned at the top end of the fixed base plate and is in threaded connection with a limit nut in a matched mode;
a vertical height adjusting assembly for adjusting the position of the bearing capacity detecting assembly is arranged on the outer side of the bearing capacity detecting assembly, and two ends of the vertical height adjusting assembly are connected with a support frame body structure;
a displacement detection assembly for detecting the descending height of the position during pile foundation bearing capacity detection is arranged at the bottom of the vertical height adjustment assembly, one end of the displacement detection assembly is arc-shaped and is attached to the outer wall of the pile foundation, and the other end of the displacement detection assembly is provided with scales and is fixedly connected with the support frame body structure;
The displacement detection assembly comprises an arc-shaped plate and a positioning plate which is positioned at the top of the arc-shaped plate and is in contact with the top end surface of the arc-shaped plate, a first connecting seat is fixedly arranged on the back side of the arc-shaped plate, a fixed column is fixedly arranged in the middle of the first connecting seat, and a telescopic suspension structure is fixedly arranged at one end of the fixed column;
The suspension structure comprises a fixed block, wherein a T-shaped sliding rod is fixedly arranged at the top end of the fixed block, a sliding sleeve is arranged on the outer part of the sliding rod in a matched sliding manner, a jacking spring block is sleeved on the sliding rod and positioned in the sliding sleeve, and the bottom end of the jacking spring block is fixedly connected with the inner wall of the sliding sleeve;
A thin rod is fixedly arranged on one side of the fixed block, a base is arranged outside one end of the thin rod, a vertical chute for sliding the thin rod is formed in the base, one end of the thin rod penetrates through the vertical chute to be fixedly provided with a limiting baffle, pointers are fixedly arranged on two sides of the limiting baffle, and scale marks corresponding to the pointers are arranged on the base;
the top of the sliding sleeve is fixedly provided with a U-shaped sliding frame, the top of the sliding frame is provided with an inverted U-shaped fixed frame sleeve in a sliding manner, the fixed frame sleeve is fixedly arranged at the bottom end of the supporting base frame, the inner side of the fixed frame sleeve is fixedly provided with an electric push rod, and the output end of the electric push rod is fixedly connected with the sliding frame;
The bottom of the front face of the sliding frame is provided with a rectangular through groove for the positioning plate to pass through in a penetrating manner, the inner walls of the two sides of the rectangular through groove are provided with T-shaped sliding grooves, T-shaped sliding blocks are arranged in the T-shaped sliding grooves in a sliding manner, and the two T-shaped sliding blocks are respectively fixedly arranged on the two sides of the positioning plate;
One side on locating plate top is along vertical fixed being provided with rack board, one side of rack board meshes mutually and is provided with the gear, the axle center department of gear is fixed and is provided with the drive bull stick, the outside rotation of drive bull stick is provided with connecting seat two, the both sides of connecting seat two bottoms are all fixed and are provided with the engaging lug, two the engaging lug is fixed respectively and is set up in the both sides of balladeur train.
2. The device for detecting pile foundation bearing capacity of a building according to claim 1, wherein the self-clamping structure comprises two opposite swing arms which are respectively in a < type and a > type, the opposite sides of the two swing arms are respectively provided with a round chamfer I, and the round chamfer I is respectively matched and slides and is limited in two arc-shaped grooves formed in the inner wall of the detection cylinder;
The bottom of two the swing arms is provided with the hanging board that is L type relatively respectively, the round hole groove has all been seted up at the positive top of hanging board, round hole inslot rotation is provided with the dwang, the one end of dwang passes the round hole groove and rotates and be provided with the base platform, the base platform cooperatees the slip setting in detecting the drum, and two the bottom of the relative terminal surface of hanging board is provided with round chamfer two.
3. The pile foundation bearing capacity detection device for the building according to claim 2, wherein a limit stop is fixedly arranged between the two hanging plates on the base table, a reset spring block is arranged at the top of the limit stop, limit posts are slidably arranged in two ends of the reset spring block, fixed baffle plates are fixedly arranged on opposite end surfaces of the two limit posts, a spherical universal joint is fixedly arranged at the other end of the fixed baffle plates, and one end of the universal joint is rotatably connected with the swing arm;
The middle part that detects the drum top is fixed to be provided with the cylinder, the output of cylinder passes the circular through groove that detects the drum top and sets up and fixing base fixed connection on the base platform, just the extrusion groove that the cross-section was eight style of calligraphy and was used for carrying out extrusion rotation to two swing arms is seted up to the outside that is located the circular through groove on the detection drum.
4. The device for detecting the bearing capacity of the pile foundation of the building according to claim 3, wherein the supporting frame body structure comprises a supporting base, four corners of the top end of the supporting base are respectively provided with an inserting hole for inserting a fixed steel drill rod in a penetrating manner, and universal wheels are fixedly arranged on the inner sides of the four inserting holes at the bottom end of the supporting base;
The top end of the supporting base is provided with a fixing frame with an inverted U-shaped front view, two ends of the back side of the fixing frame are fixedly provided with reinforcing rib plates, and pile foundation limit grooves for surrounding the pile foundations are formed in the middle of one side, away from the reinforcing rib plates, of the supporting base, and the detection cylinder is located right above the pile foundation limit grooves.
5. The pile foundation bearing capacity detection device of a building according to claim 4, wherein the vertical height adjustment assembly comprises two fixed lantern rings, the two fixed lantern rings are respectively and fixedly arranged at the top and the bottom of the outer wall of the detection cylinder, two sides of the two fixed lantern rings are fixedly provided with Z-shaped fixed connecting rods, one end of each fixed connecting rod is fixedly provided with a sliding block, the sliding blocks are arranged in a sliding groove formed in a fixing frame in a matched sliding manner, and two sliding blocks positioned on the same side are internally provided with the same sliding rail;
The hydraulic cylinder is characterized by further comprising a hydraulic cylinder and a connecting substrate, wherein two ends of the connecting substrate are fixedly connected with the back side surfaces of the two fixed lantern rings respectively, a supporting base frame is fixedly arranged at the bottom end of the hydraulic cylinder, two ends of the supporting base frame are fixedly connected with the two reinforcing rib plates respectively, and the output end of the hydraulic cylinder is fixedly connected with the connecting substrate.
6. A pile foundation bearing capacity detection method of a building according to claim 5, characterized by comprising the steps of:
S1: firstly, a pile foundation to be detected is surrounded in a pile foundation limiting groove by pushing a support frame structure, then a fixing base plate is pulled downwards to downwards move a positioning ring and surround the outer side of the pile foundation, and at the moment, the position of the pile foundation in the positioning ring can be adjusted to rapidly position a detection cylinder;
S2: the bottom end surface of the positioning plate is adjusted to be attached to the top end surface of the pile foundation, the arc plate is adjusted to be attached to the side wall of the pile foundation, the top end surface of the arc plate and the top end surface of the pile foundation are located in the same horizontal plane, the positioning plate is separated from the pile foundation through the cooperation of the gear and the rack plate before detection, and the scale pointed by the pointer at the moment is recorded;
s3: the automatic loosening of detection balancing weight is carried out through self-holding structure, at this moment, the detection balancing weight can be done the free fall motion in detecting the drum and hit the pile foundation top, can obtain the power to pile foundation detection through detecting the weight of balancing weight, detect the balancing weight simultaneously also can carry out the contact striking with the arc, the arc can be realized keeping the subsidence of certain degree of depth with the pile foundation like this, then the scale that the pointer was directional this moment is recorded, can obtain the degree of depth that the pile foundation detects the process subsidence through the scale difference around the pile foundation detects, then through the analysis and the calculation of prescribed procedure to data, obtain the vertical bearing capacity of pile foundation.
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| CN202410288575.1A CN117888591B (en) | 2024-03-14 | 2024-03-14 | Pile foundation bearing capacity detection device and detection method for building |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6798746B1 (en) * | 2019-12-31 | 2020-12-09 | 青▲島▼理工大学Ｑｉｎｇｄａｏ Ｕｎｉｖｅｒｓｉｔｙ Ｏｆ Ｔｅｃｈｎｏｌｏｇｙ | Dynamic loading simulation device for pile head and its method |
| CN212153151U (en) * | 2020-05-12 | 2020-12-15 | 东希云 | Road and bridge crack filling and reinforcing mechanism |
| CN112160355A (en) * | 2020-09-23 | 2021-01-01 | 南京创企和利科技有限公司 | Pile foundation detection device and method for building engineering supervision |
| CN212540014U (en) * | 2020-06-09 | 2021-02-12 | 陕西兴通监理咨询有限公司 | Hardness detection device for bridge construction engineering |
| CN217419762U (en) * | 2021-12-30 | 2022-09-13 | 江苏翔凯岩土工程有限公司 | Pile foundation static load detection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049562B (en) * | 2016-07-18 | 2018-02-16 | 昆山市建设工程质量检测中心 | A kind of height of the fall adjusting means for pile foundation high strain monitoring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6798746B1 (en) * | 2019-12-31 | 2020-12-09 | 青▲島▼理工大学Ｑｉｎｇｄａｏ Ｕｎｉｖｅｒｓｉｔｙ Ｏｆ Ｔｅｃｈｎｏｌｏｇｙ | Dynamic loading simulation device for pile head and its method |
| CN212153151U (en) * | 2020-05-12 | 2020-12-15 | 东希云 | Road and bridge crack filling and reinforcing mechanism |
| CN212540014U (en) * | 2020-06-09 | 2021-02-12 | 陕西兴通监理咨询有限公司 | Hardness detection device for bridge construction engineering |
| CN112160355A (en) * | 2020-09-23 | 2021-01-01 | 南京创企和利科技有限公司 | Pile foundation detection device and method for building engineering supervision |
| CN217419762U (en) * | 2021-12-30 | 2022-09-13 | 江苏翔凯岩土工程有限公司 | Pile foundation static load detection device |
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