CN112663690B - Pile foundation bearing capacity detection device and detection method thereof - Google Patents

Abstract

The utility model relates to a pile foundation bearing capacity detection device and detection method, it includes the guide seat that two relative settings set up, a plurality of piles body that is located between two guide seats, the jack that is located the pile body top, the load cell who links to each other with the piston rod of jack, the plummer that is located load cell top, two rows of two liang of iron posts that set up in the plummer bottom, the pulley that links to each other with the iron post bottom, the support column that is used for the butt on the load cell is installed to the bottom of plummer, the top of support column is equipped with the installation component and fixes in the bottom of plummer, the lateral wall of plummer is equipped with the lift hole that supplies the iron post to pass, adsorb on the iron post and be equipped with the electromagnetic iron seat that is used for bearing the plummer, the upper surface of guide seat just is equipped with the spout that supplies the pulley to slide along self length direction, be equipped with the fixed subassembly that is used for fixed pulley in the spout. This application has the effect that the convenience detected a plurality of pile bodies in proper order, does not need the manual work to set up the platform again, labour saving and time saving, and detection efficiency is high.

Description

Pile foundation bearing capacity detection device and detection method thereof

Technical Field

The application relates to the field of pile foundation detection, in particular to a pile foundation bearing capacity detection device and a detection method thereof.

Background

The pile foundation is a supporting member for transmitting the load of the upper structure to the rock-soil foundation and plays an important role in the safety of the engineering structure. In order to ensure engineering safety, a load test is usually required to be carried out to determine whether the bearing capacity of the pile foundation meets the design requirement after the construction of the pile foundation is completed, a loading method of the load test mainly adopts a pressure-weight method, an anchor pile method and an anchor pile pressure-weight combined method, the method is adopted to apply load on the top of the pile foundation during the test, the loading and pile top settlement amount of each stage is measured actually, and the size of the bearing capacity of the pile foundation is determined by analyzing a load and pile foundation settlement relation curve.

Chinese patent No. CN211037080U discloses a pile foundation bearing capacity detection device, which comprises a bearing platform, a detection platform and a fixing plate; this detection device is through being equipped with the recess on examining the test table, and the through-hole that is equipped with below the recess, make cushion cap and pile body can effectually install and carry out synchronous construction in examining the test table, make the pile foundation can effectual implementation location be injectd and then improve the installation effectiveness of detection device and pile foundation, simultaneously through being equipped with fixed plate and connecting plate between cushion cap and recess, and first locating lever and second locating lever that are equipped with through the first spring in location between fixed plate and connecting plate, make the user can control detection device through the controller and implement position detection to first locating lever and second locating lever, thereby can reach real-time detection's purpose when satisfying the bearing capacity detection of implementing the pile foundation.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when using above-mentioned detection device, need will examine test table and fix subaerial, when needs examine time measuring several pile foundations at a short distance away, need the manual work to set up the platform again, it is consuming time hard, influenced work efficiency.

Disclosure of Invention

In order to improve when detecting the pile foundation at a short distance away, need artifical problem consuming time and energy of setting up the platform again, this application provides a pile foundation bearing capacity detects and detection method.

In a first aspect, the present application provides a pile foundation bearing capacity detection device, adopt following technical scheme:

the utility model provides a pile foundation bearing capacity detection device, includes the guide seat that two relative settings, be located a plurality of piles between two guide seats, be located the jack at pile body top, the load cell that links to each other with the piston rod of jack, be located the plummer of load cell top, two rows of two liang of relative settings at the iron prop of plummer bottom, the pulley that links to each other with the iron prop bottom, the support column that is used for the butt on load cell is installed to the bottom of plummer, the top of support column is equipped with the installation component and fixes the bottom at the plummer, the lateral wall of plummer is equipped with the lift hole that supplies the iron prop to pass, it is equipped with the electromagnetic iron seat that is used for bearing plummer to adsorb on the iron prop, the upper surface of guide seat just is equipped with the spout that supplies the pulley to slide along self length direction, be equipped with the fixed subassembly that is used for fixed pulley in the spout.

By adopting the technical scheme, the supporting column is fixed on the lower surface of the bearing platform by the aid of the mounting assembly, the electromagnet seat is slid to a proper height and is electrified, so that the electromagnet seat is fixedly adsorbed on the iron column, the iron column can penetrate through the lifting hole at the moment, the lower surface of the bearing platform is abutted against the upper surface of the electromagnet seat, and the bearing platform is supported by the electromagnet seat; then the iron column slides, drives the pulley and slides in the spout, when one of them pile foundation is aimed at to the support column, utilizes fixed subassembly to fix the pulley in the spout, has realized the location to the iron column to keep stable with the plummer.

Finally, placing an object with required weight on the bearing platform, starting the jack, enabling a piston rod of the jack to extend out, jacking the bearing platform through the supporting column, enabling the bearing platform to generate a reaction force to the pile body, and detecting the bearing capacity by using the load sensor; adopt the detection device that above-mentioned structure constitutes, when needs examine adjacent pile foundation, only need the iron prop that slides, with the plummer remove to the pile foundation top that needs detected can, need not establish testing platform in addition, labour saving and time saving has improved detection efficiency.

Optionally, the installation component is including setting up at the mounting disc of support column roof, setting up a plurality of erection columns on the mounting disc upper surface, the continuous installation piece in top of inserting the post, and is a plurality of the circumference array of erection column along the mounting disc, the lower surface of plummer is equipped with and supplies erection column and installation piece male mounting groove, the lateral wall of installation piece passes through the locking piece to be fixed in the mounting groove.

By adopting the technical scheme, during installation, the installation column and the installation block are simultaneously inserted into the installation groove, the installation block is fixed in the installation groove by using the locking piece, and the support column can be fixed at the bottom of the bearing platform; this mounting means, simple structure makes things convenient for the dismouting support column to according to the specification of pile foundation, the support column of the corresponding specification of installation.

It is optional, the locking piece includes horizontal piece, the voussoir of setting on the horizontal piece lateral wall, slides the linkage piece of being connected and the montant that links to each other with the linkage piece with the voussoir, the cell wall of mounting groove is equipped with and supplies horizontal piece male locking groove, the lateral wall of installation piece is equipped with the horizontal groove that is used for holding horizontal piece, be equipped with the vertical groove that is used for holding the montant in the lateral wall of erection column, vertical groove is linked together with the horizontal groove, the lateral wall of linkage piece is equipped with the direction inclined plane that supplies the voussoir to slide, be equipped with the cavity that communicates with a plurality of vertical grooves in the mounting disc, the montant is far away from the one end of horizontal piece and is stretched into in the cavity, and is a plurality of connecting piece fixed connection is passed through to the one end that the montant is located the cavity, be equipped with the regulating part that is used for driving connecting piece lift in the cavity.

Through adopting above-mentioned technical scheme, utilize regulating part drive connecting piece to shift up, drive a plurality of montants and shift up in step, along with shifting up of montant, promote the linkage and slide to the voussoir direction, because the setting on direction inclined plane, and slide between voussoir and the linkage piece and be connected, and then can promote the voussoir and slide to the horizontal inslot to can promote the horizontal piece and insert locking inslot, finally can fix the installation piece in the mounting groove.

Optionally, the connecting piece includes the connecting plate, the first spring that links to each other with the connecting plate upper surface, and a plurality of the montant is kept away from the one end of horizontal piece and all links to each other with the upper surface of connecting plate, the interior roof of cavity is equipped with the guide pillar, the lateral wall of connecting plate is equipped with the guiding hole that supplies the guide pillar to pass, the one end that the connecting plate was kept away from to first spring links to each other with the interior roof of cavity, first spring is used for providing the power that the montant direction slided for the connecting plate.

Through adopting above-mentioned technical scheme, through the connecting plate, can drive a plurality of montants and go up and down in step, utilize first spring to provide the power that slides to the montant direction for the connecting plate, can insert the horizontal piece and lock the inslot, utilize first spring can be with the connecting plate stablely simultaneously, and then can be with the montant stablely to stably insert the horizontal piece and establish locking inslot, improved and fixed the stability in the mounting groove with the installation piece.

Optionally, the regulating part includes two first branches and the second branch that crisscross set up, rotate through the pivot between first branch and the second branch and connect, the inside wall at the cavity is fixed to the one end of pivot, the top of first branch and second branch is all articulated to be connected with the guide block, the lower surface of connecting plate is equipped with the guide way that supplies the guide block to slide, the inner diapire of cavity is equipped with the spacing groove, the spacing inslot is fixed and is equipped with first slider, the bottom and the first slider of first branch are articulated to be connected, the spacing inslot slides and is equipped with the second slider, the bottom and the articulated connection of second slider of second branch, the lateral wall of second slider is equipped with the horizon bar, the circumference wall of mounting disc is equipped with the through-hole, the one end that the second slider was kept away from to the horizon bar passes the through-hole and is connected with the flange.

Through adopting above-mentioned technical scheme, through first branch and second branch, play the supporting role to the connecting plate, personnel stimulate the flange, draw the horizon bar outwards, it slides to drive the first slider direction of second slider dorsad, because rotate between first branch and the second branch and connect, along with sliding of second slider, first branch, contained angle crescent between second branch and the connecting plate lower surface, and then drive the connecting plate and move down, it moves down in step to drive a plurality of montants, because slide between linkage piece and the voussoir and be connected, along with the removal of linkage piece, can drive the voussoir and slide to vertical groove direction, so that slide the horizon block to the horizontal groove by the locking groove in, make things convenient for personnel's dismouting this moment, change the support column.

Optionally, the horizontal rod is sleeved with a second spring, one end of the second spring is connected with the side wall of the second sliding block, the other end of the second spring is connected with the inner side wall of the cavity, and the second spring is used for providing the second sliding block with force sliding towards the first sliding block.

Through adopting above-mentioned technical scheme, utilize the elasticity of second spring, with the position holding stability of second slider, can be with connecting plate holding stability through first branch and second branch, and then can be with the montant holding stability to stably insert the horizontal piece and establish locking inslot.

Optionally, the top of pile body is equipped with spacing platform, the lower surface of spacing platform is equipped with and is used for the cover to establish the overlap joint groove at pile body top, the upper surface of spacing platform is equipped with the spacing groove that supplies the support column to slide, the jack is installed at spacing inslot.

Through adopting above-mentioned technical scheme, the setting in overlap joint groove is convenient to establish spacing platform cover on the pile body, and the setting in spacing groove plays direction and limiting displacement to the lift of support column.

Optionally, the top side wall of the iron column is provided with threads, and the top end of the iron column is connected with a nut in a threaded manner.

Through adopting above-mentioned technical scheme, with nut threaded connection on the top of iron prop, utilize the nut, play limiting displacement to the highest rise distance of plummer.

Optionally, fixed subassembly is including setting up the direction arris at the groove diapire of spout, the circumference wall of pulley is equipped with the direction annular that slides on the direction arris, the direction arris is the electro-magnet, the cell wall of direction annular is equipped with the magnet ring piece, the magnet ring piece adsorbs on the direction arris.

Through adopting above-mentioned technical scheme, after the pulley slided to suitable position, with direction arris circular telegram, direction arris circular telegram produces the magnetic field, and then inhale the iron ring piece and adsorb to fix on the direction arris, has realized the pulley and has been located the location of spout, and then can remain stable with the iron prop.

In a second aspect, the present application provides a method for detecting bearing capacity of a pile foundation, which adopts the following technical scheme:

a pile foundation bearing capacity detection method comprises the following steps:

step S1: the flange is pulled, the second sliding block is pulled to slide in the direction far away from the first sliding block through the horizontal rod, the guide block is driven to slide in the guide groove through the first supporting rod and the second supporting rod, so that the connecting plate moves downwards, and the horizontal block extends into the horizontal groove through the sliding fit between the linkage block and the wedge block;

step S2: inserting the mounting column and the mounting block into the mounting groove until the mounting disc is abutted against the bottom of the bearing table, releasing the flange, moving the connecting plate upwards by using the elastic reset force of the second spring and the first spring, pushing the linkage block to slide towards the direction of the wedge block through the vertical rod, pushing the wedge block to slide in the horizontal groove, inserting the horizontal block into the locking groove, and fixing the support column at the bottom of the bearing table;

step S3: placing two guide seats on two sides of a plurality of pile bodies, adjusting the two guide seats to be in a mutually parallel state, sliding a pulley to a proper position in a sliding chute, electrifying a guide edge, electrifying the guide edge to generate a magnetic field, so that an iron absorbing ring sheet is adsorbed and fixed on the guide edge, and an iron column is kept stable;

step S4: placing the bearing plate above the four iron columns, enabling the iron columns to penetrate through the lifting holes, connecting nuts to the top ends of the iron columns in a threaded manner, sliding the electromagnet columns, electrifying the electromagnet columns, and pre-supporting the bearing table by utilizing the electromagnet columns;

step S5: and then, preventing an object with required weight on the bearing platform, starting the jack, driving the load sensor to move upwards and abut against the bottom of the supporting column, jacking the bearing platform through the supporting column, and detecting the bearing capacity of the bearing platform by using the load sensor.

Through adopting above-mentioned technical scheme, when needs examine time measuring to adjacent not far away stake, only need the iron prop that slides, alright with the plummer cunning to suitable position, do not need the manual work to establish testing platform in addition, labour saving and time saving has improved detection efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the iron column is moved to drive the pulley to slide in the sliding groove, so that the bearing table can be moved to the position above the pile body to be detected, a detection platform does not need to be manually supported, time and labor are saved, and the detection efficiency is improved;

2. electrifying the electromagnet seat to enable the electromagnet seat to be adsorbed and fixed on the iron column, and supporting the bearing table through the electromagnet seat;

3. utilize first spring can be with connecting plate holding stability, and then can be with montant holding stability to stably insert the horizontal block and establish in locking inslot, improved the stability of fixing the installation piece in the mounting groove.

Drawings

Fig. 1 is an overall structure schematic diagram of a pile foundation bearing capacity detection device according to an embodiment of the present application.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 2.

Fig. 5 is an enlarged view of a portion C in fig. 4.

Description of reference numerals: 1. a guide seat; 2. a pile body; 3. a jack; 4. a load sensor; 5. a bearing table; 6. an iron column; 7. a pulley; 8. a support pillar; 9. a lifting hole; 10. an electromagnet base; 11. a chute; 12. a fixing assembly; 121. a guide edge; 122. a guide ring groove; 123. a magnet ring sheet; 13. mounting the component; 131. mounting a disc; 132. mounting a column; 133. mounting blocks; 134. mounting grooves; 14. a locking member; 141. a horizontal block; 142. a wedge block; 143. a linkage block; 144. a vertical rod; 145. a locking groove; 146. a horizontal groove; 147. a vertical slot; 148. a guide slope; 15. a dovetail block; 16. a dovetail groove; 17. a cavity; 18. a connecting member; 181. a connecting plate; 182. a first spring; 183. a guide post; 184. a guide hole; 19. an adjustment member; 191. a first support bar; 192. a second support bar; 193. a rotating shaft; 194. a guide block; 195. a guide groove; 196. a limiting groove; 197. a first slider; 198. a second slider; 199. a horizontal bar; 20. a through hole; 21. a flange; 22. a second spring; 23. a limiting table; 24. a lap joint groove; 25. a sliding groove; 26. and a nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses pile foundation bearing capacity detection device. Referring to fig. 1, detection device includes plummer 5 that the level set up, the equidistant range in below of plummer 5 is equipped with a plurality of piles 2, the quantity of pile 2 can be three, one of them pile 2 is to the lower surface middle part of plummer 5, four corners of the upper surface of plummer 5 all are equipped with lift hole 9, iron prop 6 is worn to be equipped with in the lift hole 9 cunning, iron prop 6 and lift hole 9's cooperation, play direction and limiting displacement to plummer 5's lift, so that plummer 5 can stable lift, the top of iron prop 6 stretches out the upper surface and threaded connection of plummer 5 has nut 26, the top lateral wall of iron prop 6 is equipped with the screw thread with nut 26 threaded connection, the cooperation of nut 26 and screw thread, play the limiting displacement to plummer 5's the highest position of moving up, avoid the top of iron prop 6 to shift out the bottom of lift hole 9.

Slip the cover on the lateral wall of iron prop 6 and establish and be connected with electromagnet seat 10, with electromagnet seat 10 along the direction of height sliding of iron prop 6 to suitable position, with electromagnet seat 10 circular telegram, can fix electromagnet seat 10 absorption on iron prop 6, and then can carry out the pre-support to plummer 5 through electromagnet seat 10.

The lower surface that plummer 5 was stretched out and install pulley 7 in the bottom of iron prop 6, the below of plummer 5 is equipped with two guide seat 1 that are parallel to each other, two guide seat 1 are used for propping up and establish on ground, the upper surface of two guide seat 1 and all be equipped with spout 11 along self length direction, all slide in every spout 11 and have two pulley 7, be equipped with the fixed subassembly 12 that is used for fixed pulley 7 in the spout 11, the pulley 7 slides, slide iron prop 6 to suitable position after, utilize fixed subassembly 12 to fix pulley 7 in spout 11, and then can keep iron prop 6 stable, so that install plummer 5 in suitable position, make plummer 5 to one of them pile body 2.

Referring to fig. 1 and 2, the fixing assembly 12 includes a guide rib 121 disposed on the bottom wall of the sliding groove 11, the length of the guide rib 121 is identical to the length of the sliding groove 11, a guide ring groove 122 is disposed on the circumferential wall of the pulley 7, and the guide ring groove 122 cooperates with the guide rib 121 to guide and limit the sliding movement of the pulley 7, so that the pulley 7 can stably slide in the sliding groove 11.

The wall of the guide ring groove 122 is fixedly provided with a magnet ring piece 123, in this embodiment, the guide rib 121 is an electromagnet, and after the pulley 7 slides to a proper position, the guide rib 121 is electrified, so that the magnet ring piece 123 is tightly adsorbed and fixed on the guide rib 121, and the pulley 7 is positioned in the sliding groove 11, so as to keep the iron column 6 stable.

Referring to fig. 1 and 2, a support column 8 is arranged in the middle of the lower surface of a bearing table 5, a mounting assembly 13 is arranged at the top end of the support column 8, the support column 8 is fixed on the lower surface of the bearing table 5 through the mounting assembly 13, a jack 3 is mounted on a pile body 2 in the middle of the lower surface of the bearing table 5, a piston rod of the jack 3 is connected with a load sensor 4, the extension direction of the piston rod of the jack 3 is opposite to the axial direction of an iron column 6, the piston of the jack 3 is started to extend out, so that the load sensor 4 is abutted to the support column 8, the supporting function is realized on the bearing table 5, when in detection, an object with a certain weight is placed on the bearing table 5, the piston rod of the jack 3 is continuously started to extend out, the bearing table 5 can be jacked up through the supporting column 8, the bearing table 5 generates a reverse acting force to the pile body 2, and the bearing capacity of the pile body 2 is detected by the load sensor 4; the detection device with the structure can detect a plurality of pile bodies 2 in sequence, is convenient and practical, does not need to manually set up a platform again, saves time and labor, and improves the detection efficiency.

Referring to fig. 2 and 3, the top of pile body 2 is equipped with spacing platform 23, the lower surface of spacing platform 23 is equipped with overlap joint groove 24, overlap joint groove 24's setting, conveniently cup joint spacing platform 23 at the top of pile body 2, the upper surface of spacing platform 23 is equipped with sliding groove 25, jack 3 installs the tank bottom wall middle part position at sliding groove 25, sliding groove 25's the deep size in groove is greater than the height dimension of jack 3's cylinder body, so that support column 8 inserts in sliding groove 25 and the butt on load sensor 4, through setting up sliding groove 25, play direction and limiting displacement to support column 8's lift.

Referring to fig. 2 and 4, installation component 13 includes fixed mounting disc 131 that sets up at support column 8 roof, the upper surface of mounting disc 131 just is equipped with a plurality of erection columns 132 along self circumference array, the quantity of erection column 132 can be three, the vertical setting of erection column 132, the top fixedly connected with installation piece 133 of erection column 132, the lower surface of plummer 5 is equipped with mounting groove 134, mounting groove 134 is used for supplying erection column 132 and installation piece 133 to insert, the lateral wall of installation piece 133 is equipped with locking piece 14 and fixes in mounting groove 134, and then can fix support column 8 in the bottom of plummer 5.

Referring to fig. 4 and 5, the locking member 14 includes a horizontal block 141, a wedge 142 is disposed on a side wall of one end of the horizontal block 141, a linkage block 143 is slidably connected to a side wall of the wedge 142 opposite to the horizontal block 141, a guide inclined surface 148 for sliding the wedge 142 is disposed on a side wall of the linkage block 143, a dovetail block 15 is disposed on a side wall of the linkage block 143 on the guide inclined surface 148, a dovetail groove 16 for sliding the dovetail block 15 is disposed on a side wall of the wedge 142, and the dovetail block 15 and the dovetail groove 16 are disposed to realize the sliding connection between the linkage block 143 and the wedge 142.

The lower surface of linkage block 143 is equipped with the montant 144 of vertical setting, is equipped with the vertical groove 147 that is used for holding montant 144 in the lateral wall of erection column 132, and the lateral wall of erection column 132 is equipped with the horizontal groove 146 that is used for holding horizontal piece 141 dorsad in the erection block 133, and horizontal groove 146 and vertical groove 147 are linked together, and the cell wall of mounting groove 134 is equipped with locking groove 145, and locking groove 145 sets up with horizontal groove 146 relatively, and locking groove 145 is used for supplying horizontal piece 141 to insert.

The vertical rod 144 is pushed to move upwards to drive the linkage block 143 to move upwards synchronously, and due to the arrangement of the guide inclined plane 148, the wedge block 142 is pushed to slide towards the horizontal groove 146, so that the horizontal block 141 can be pushed to extend out of the horizontal groove 146 and be inserted into the locking groove 145, and the mounting block 133 can be fixed in the mounting groove 134, so that the fixed connection between the support column 8 and the bearing platform 5 is realized.

Otherwise, in a similar way, the vertical rod 144 is pushed to move downwards to drive the linkage block 143 to move downwards, and the linkage block 143 is connected with the wedge block 142 in a sliding manner, so that the horizontal block 141 can be driven to slide into the horizontal groove 146 from the locking groove 145, and at the moment, the support column 8 is convenient for personnel to disassemble, assemble and replace.

Referring to fig. 4 and 5, a cavity 17 is formed inside a side wall of the mounting plate 131, bottom ends of three vertical rods 144 extend into the cavity 17, one ends of the three vertical rods 144 located in the cavity 17 are fixedly connected through a connecting piece 18, the connecting piece 18 includes a connecting plate 181 horizontally arranged, the bottom ends of the vertical rods 144 are connected with an upper surface of the connecting plate 181, a guide post 183 is fixedly arranged on an inner top wall of the cavity 17, the guide post 183 is vertically arranged, a guide hole 184 is formed in the middle of the side wall of the connecting plate 181, the guide post 183 is used for allowing the guide post 183 to pass through, the connecting plate 181 can be lifted in a height direction, a first spring 182 is sleeved on the guide post 183, one end of the first spring 182 is connected with the inner top wall of the cavity 17, the other end of the first spring 182 is connected with the upper surface of the connecting plate 181, a telescopic direction of the first spring 182 is the same as an axial direction of the guide post 183, and the first spring 182 is used for providing upward sliding force for the connecting plate 181, and then the connecting plate 181 moves upwards to drive the vertical rods 144 to move upwards synchronously, so that the horizontal block 141 is inserted into the locking groove 145.

Referring to fig. 4 and 5, an adjusting part 19 for driving the connecting plate 181 to ascend and descend is arranged in the cavity 17, the adjusting part 19 comprises a first supporting rod 191 and a second supporting rod 192 which are mutually staggered, the side walls of the middle portions of the first supporting rod 191 and the second supporting rod 192 are rotatably connected through a rotating shaft 193, the rotating shaft 193 is horizontally arranged, one end of the rotating shaft 193 is fixedly connected to the inner side wall of the cavity 17, guide grooves 195 are formed in the lower surface of the connecting plate 181 and located on two sides of the guide hole 184, the two guide grooves 195 are respectively in one-to-one correspondence with the top ends of the first supporting rod 191 and the top ends of the second supporting rods 192, the top ends of the first supporting rod 191 and the top ends of the second supporting rods 192 are respectively hinged with guide blocks 194, and the guide blocks 194 slide in the guide grooves 195.

The inner bottom wall of the cavity 17 is provided with a limiting groove 196, the limiting groove 196 is opposite to and parallel to the guide groove 195, a first sliding block 197 is fixedly arranged in the limiting groove 196, the bottom end of the first supporting rod 191 is hinged with the upper surface of the first sliding block 197, a second sliding block 198 is arranged in the limiting groove 196 and positioned on one side of the first sliding block 197 in a sliding manner, the bottom end of the second supporting rod 192 is hinged with the upper surface of the second sliding block 198, the top of the second sliding block 198 extends out of the limiting groove 196, the side wall of the second sliding block 198, which is opposite to the first sliding block 197, is fixedly connected with a horizontal rod 199, the circumferential wall of the mounting disk 131 is provided with a through hole 20, the through hole 20 is communicated with the cavity 17, one end of the horizontal rod 199, which is far away from the second sliding block 198, penetrates through the through hole 20 and extends out of the circumferential wall of the mounting disk 131, and one end of the horizontal rod 199, which is positioned outside the circumferential wall of the mounting disk 131, is connected with a flange 21.

Because the first supporting rod 191 and the second supporting rod 192 are rotatably connected, when a person pulls the flange 21 to pull the horizontal rod 199 outwards, the second sliding block 198 slides towards the direction away from the first sliding block 197, at the moment, the included angle between the first supporting rod 191, the second supporting rod 192 and the lower surface of the connecting plate 181 is gradually increased, the connecting plate 181 is driven to move downwards, and meanwhile, the plurality of vertical rods 144 are driven to synchronously move downwards, so that the horizontal block 141 is slid into the horizontal groove 146 from the locking groove 145, and the mounting block 133 and the mounting column 132 are both conveniently inserted into the mounting groove 134; on the contrary, when the horizontal rod 199 is pushed to slide toward the cavity 17, the second sliding block 198 is pushed to slide toward the first sliding block 197, and at this time, the included angle between the first supporting rod 191 and the second supporting rod 192 is gradually increased, so as to drive the connecting plate 181 to move upward.

Referring to fig. 4 and 5, the horizontal rod 199 is sleeved with the second spring 22, one end of the second spring 22 is connected with the inner side wall of the cavity 17, the other end of the second spring 22 is connected with the side wall of the second slider 198, the telescopic direction of the second spring 22 is in the same direction as the axial direction of the horizontal rod 199, the second spring 22 is utilized to provide force for the second slider 198 to slide towards the side wall of the first slider 197, so that the connecting plate 181 can be pushed to move upwards, the connecting plate 181 is kept stable, and the stability of the horizontal block 141 inserted in the locking groove 145 is improved.

The implementation principle of the pile foundation bearing capacity detection device in the embodiment of the application is as follows: firstly, a person pulls the horizontal rod 199 to drive the second sliding block 198 to slide back to the first sliding block 197, at the moment, the second spring 22 is compressed, and along with the sliding of the second sliding block 198, the included angle between the lower surfaces of the first supporting rod 191, the second supporting rod 192 and the connecting plate 181 is gradually increased, so that the connecting plate 181 is driven to move downwards, meanwhile, the three vertical rods 144 synchronously move downwards, and meanwhile, the first spring 182 is stretched.

With the downward movement of the vertical rod 144, the linkage block 143 is driven to slide in the direction away from the wedge 142, and as the linkage block 143 and the wedge 142 are connected in a sliding manner through the dovetail block 15 and the dovetail groove 16, with the sliding of the linkage block 143, the wedge 142 is driven to slide in the direction of the linkage block 143, and then the horizontal block 141 can slide into the horizontal groove 146 from the locking groove 145, and at the moment, the installation column 132 and the installation column 132 can be inserted into the installation groove 134 by personnel.

Insert installation piece 133 back in mounting groove 134, personnel let go up horizontal rod 199, utilize the elasticity restoring force of second spring 22, make second slider 198 slide to first slider 197 direction, make connecting plate 181 shift up, utilize the elasticity restoring force of first spring 182 simultaneously, make connecting plate 181 shift up, drive a plurality of montants 144 and move up in step, and then promote voussoir 142 and slide to horizontal groove 146 direction, so that promote horizontal block 141 to locking groove 145 in, realized that installation piece 133 is located the location in mounting groove 134, finally can install support column 8 at the lower surface of plummer 5.

Then place guide seat 1 in the both sides of a plurality of piles 2, after sliding pulley 7 to suitable position in spout 11, will lead arris 121 circular telegram, make magnet ring piece 123 adsorb to be fixed in spout 11, and then can fix pulley 7 in spout 11, place plummer 5 in the iron prop 6 top again, make iron prop 6 pass lift hole 9, insert the bottom of support column 8 simultaneously in spacing groove 196, make the lower surface butt of support column 8 on load sensor 4, again with nut 26 threaded connection on the top of iron prop 6, restrict the highest lift distance of plummer 5, simultaneously with electromagnetism iron seat 10 circular telegram, electromagnetism iron seat 10 adsorbs to be fixed on iron prop 6, can carry out the pre-support to plummer 5 through electromagnetism iron seat 10.

And finally, placing an object with required weight on the bearing platform 5, starting the jack 3, extending a piston rod of the jack 3, jacking the bearing platform 5 through the support column 8, generating reverse acting force to the pile body 2 by the bearing platform 5, and detecting the bearing capacity of the pile body 2 by using the load sensor 4, thereby finally realizing the bearing capacity detection of the pile body 2.

The embodiment of the application also discloses a pile foundation bearing capacity detection method, which comprises the following steps:

step S1: the flange 21 is pulled, the second slide block 198 is pulled by the horizontal rod 199 to slide in the direction away from the first slide block 197, the guide block 194 is driven to slide in the guide groove 195 by the first support rod 191 and the second support rod 192, the connecting plate 181 moves downwards, the plurality of vertical rods 144 are driven to synchronously move downwards, the horizontal block 141 extends into the horizontal groove 146, and at the moment, the mounting column 132 and the mounting column 132 can be inserted into the mounting groove 134;

step S2: after the mounting block 133 is inserted into the mounting groove 134, the flange 21 is released, the connecting plate 181 moves upward by using the elastic restoring force of the second spring 22 and the first spring 182, the vertical rod 144 pushes the linkage block 143 to slide toward the wedge 142, the wedge 142 is pushed to slide in the horizontal groove 146, the horizontal block 141 is inserted into the locking groove 145 from the horizontal groove 146, and the supporting column 8 can be fixed at the bottom of the bearing platform 5;

step S3: placing two guide seats 1 on the ground and positioned at two sides of a plurality of pile bodies 2, adjusting the two guide seats 1 to be in a parallel state, sliding a pulley 7 to a proper position in a sliding groove 11, electrifying a guide edge 121, electrifying the guide edge 121 to generate a magnetic field, so that an iron absorbing ring piece 123 is adsorbed and fixed on the guide edge 121, and an iron column 6 is kept stable;

step S4: placing the bearing plate above the four iron columns 6, enabling the iron columns 6 to penetrate through the lifting holes 9, connecting nuts 26 to the top ends of the iron columns 6 in a threaded mode, sliding the electromagnet columns 6 simultaneously, electrifying the electromagnet columns 6, pre-supporting the bearing table 5 by the electromagnet columns 6, inserting the supporting columns 8 into the limiting grooves 196 simultaneously, and enabling the lower surfaces of the supporting columns 8 to be abutted to the upper surfaces of the load sensors 4;

step S5: the jack 3 is started to drive the load cell 4 to move upwards and abut against the bottom of the support column 8 on the bearing table 5 to prevent an object with required weight, the bearing table 5 is jacked up through the support column 8, the bearing capacity of the bearing table 5 is detected by the load cell 4, and finally detection is finished.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. The utility model provides a pile foundation bearing capacity detection device which characterized in that: comprises two oppositely arranged guide seats (1), a plurality of pile bodies (2) arranged between the two guide seats (1), a jack (3) arranged at the top of the pile body (2), a load sensor (4) connected with a piston rod of the jack (3), a bearing platform (5) arranged above the load sensor (4), two rows of iron columns (6) arranged at the bottom of the bearing platform (5) in a pairwise opposite manner, and pulleys (7) connected with the bottom end of the iron columns (6), wherein the bottom of the bearing platform (5) is provided with support columns (8) used for being abutted against the load sensor (4), the top of each support column (8) is provided with a mounting component (13) and fixed at the bottom of the bearing platform (5), the side wall of the bearing platform (5) is provided with a lifting hole (9) for the iron column (6) to pass through, and an electromagnetic iron seat (10) used for bearing the bearing platform (5) is adsorbed on the iron column (6), a sliding chute (11) for sliding of the pulley (7) is arranged on the upper surface of the guide seat (1) along the length direction of the guide seat, and a fixing component (12) for fixing the pulley (7) is arranged in the sliding chute (11);

the mounting assembly (13) comprises a mounting disc (131) arranged on the top wall of the supporting column (8), a plurality of mounting columns (132) arranged on the upper surface of the mounting disc (131), and a mounting block (133) connected with the top ends of the mounting columns (132), the mounting columns (132) are arrayed along the circumferential direction of the mounting disc (131), a mounting groove (134) for the mounting columns (132) and the mounting block (133) to be inserted is formed in the lower surface of the bearing table (5), and the side wall of the mounting block (133) is fixed in the mounting groove (134) through a locking piece (14);

the locking piece (14) comprises a horizontal block (141), a wedge block (142) arranged on the side wall of the horizontal block (141), a linkage block (143) connected with the wedge block (142) in a sliding manner and a vertical rod (144) connected with the linkage block (143), wherein the wall of the mounting groove (134) is provided with a locking groove (145) for inserting the horizontal block (141), the side wall of the mounting block (133) is provided with a horizontal groove (146) for accommodating the horizontal block (141), a vertical groove (147) for accommodating the vertical rod (144) is arranged in the side wall of the mounting column (132), the vertical groove (147) is communicated with the horizontal groove (146), the side wall of the linkage block (143) is provided with a guide inclined plane (148) for sliding the wedge block (142), a cavity (17) communicated with a plurality of vertical grooves (147) is arranged in the mounting disc (131), and one end of the vertical rod (144) far away from the horizontal block (141) extends into the cavity (17), one ends of the vertical rods (144) which are positioned in the cavity (17) are fixedly connected through a connecting piece (18), and an adjusting piece (19) for driving the connecting piece (18) to ascend and descend is arranged in the cavity (17);

the connecting piece (18) comprises a connecting plate (181) and a first spring (182) connected with the upper surface of the connecting plate (181), one end, far away from the horizontal block (141), of each vertical rod (144) is connected with the upper surface of the connecting plate (181), a guide post (183) is arranged on the inner top wall of the cavity (17), a guide hole (184) for the guide post (183) to penetrate through is formed in the side wall of the connecting plate (181), one end, far away from the connecting plate (181), of the first spring (182) is connected with the inner top wall of the cavity (17), and the first spring (182) is used for providing the connecting plate (181) with force for sliding of the vertical rods (144) in the direction;

the adjusting piece (19) comprises a first supporting rod (191) and a second supporting rod (192) which are arranged in a staggered mode, the first supporting rod (191) and the second supporting rod (192) are connected in a rotating mode through a rotating shaft (193), one end of the rotating shaft (193) is fixed to the inner side wall of the cavity (17), the top ends of the first supporting rod (191) and the second supporting rod (192) are connected with a guide block (194) in a hinged mode, a guide groove (195) for the guide block (194) to slide is arranged on the lower surface of the connecting plate (181), a limiting groove (196) is arranged on the inner bottom wall of the cavity (17), a first sliding block (197) is fixedly arranged in the limiting groove (196), the bottom end of the first supporting rod (191) is connected with the first sliding block (197) in a hinged mode, a second sliding block (198) is arranged in the limiting groove (196) in a sliding mode, and the bottom end of the second supporting rod (192) is connected with the second sliding block (198) in a hinged mode, a horizontal rod (199) is arranged on the side wall of the second sliding block (198), a through hole (20) is formed in the circumferential wall of the mounting disc (131), and one end, far away from the second sliding block (198), of the horizontal rod (199) penetrates through the through hole (20) and is connected with a flange (21);

the horizontal rod (199) is sleeved with a second spring (22), one end of the second spring (22) is connected with the side wall of the second sliding block (198), the other end of the second spring (22) is connected with the inner side wall of the cavity (17), and the second spring (22) is used for providing force for the second sliding block (198) to slide towards the direction of the first sliding block (197).

2. The pile foundation bearing capacity detection device of claim 1, wherein: the top of pile body (2) is equipped with spacing platform (23), the lower surface of spacing platform (23) is equipped with and is used for the cover to establish overlap joint groove (24) at pile body (2) top, the upper surface of spacing platform (23) is equipped with the groove (25) that slides that supplies support column (8) to slide, jack (3) are installed in the groove (25) that slides.

3. The pile foundation bearing capacity detection device of claim 2, wherein: the top end lateral wall of iron prop (6) is equipped with the screw thread, the top end threaded connection of iron prop (6) has nut (26).

4. The pile foundation bearing capacity detection device of claim 3, wherein: fixed subassembly (12) is including setting up direction arris (121) at the tank bottom wall of spout (11), the circumferential wall of pulley (7) is equipped with direction annular (122) that slide on direction arris (121), direction arris (121) are the electro-magnet, the cell wall of direction annular (122) is equipped with and inhales iron ring piece (123), it adsorbs on direction arris (121) to inhale iron ring piece (123).

5. A pile foundation bearing capacity detection method using the pile foundation bearing capacity detection device according to claim 4, characterized in that:

step S1: the pulling flange (21) pulls the second sliding block (198) to slide towards the direction far away from the first sliding block (197) through the horizontal rod (199), and drives the guide block (194) to slide in the guide groove (195) through the first supporting rod (191) and the second supporting rod (192), so that the connecting plate (181) moves downwards, and the horizontal block (141) extends into the horizontal groove (146) through the sliding fit between the linkage block (143) and the wedge block (142);

step S2: inserting the mounting column (132) and the mounting block (133) into the mounting groove (134), releasing the flange (21) until the mounting disc (131) abuts against the bottom of the bearing platform (5), moving the connecting plate (181) upwards by using the elastic resetting force of the second spring (22) and the first spring (182), pushing the linkage block (143) to slide towards the wedge block (142) through the vertical rod (144), pushing the wedge block (142) to slide in the horizontal groove (146), inserting the horizontal block (141) into the locking groove (145), and fixing the support column (8) at the bottom of the bearing platform (5);

step S3: two guide seats (1) are placed on two sides of a plurality of pile bodies (2), the two guide seats (1) are adjusted to be in a parallel state, a pulley (7) slides to a proper position in a sliding groove (11), a guide edge (121) is electrified, the guide edge (121) is electrified to generate a magnetic field, so that a magnet ring piece (123) is adsorbed and fixed on the guide edge (121), and an iron column (6) is kept stable;

step S4: placing a bearing plate above the four iron columns (6), enabling the iron columns (6) to penetrate through the lifting holes (9), connecting nuts (26) to the top ends of the iron columns (6) in a threaded mode, and connecting the bearing table (5) on the iron columns (6) in a sliding mode;

step S5: the jack (3) is started to drive the load sensor (4) to move upwards and abut against the bottom of the support column (8) to jack up the bearing platform (5) through the support column (8) so as to detect the bearing capacity of the bearing platform (5) by using the load sensor (4) to prevent an object with required weight on the bearing platform (5).

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