CN111042131B - Pile head breaking device of large cast-in-situ bored pile and using method thereof - Google Patents
Pile head breaking device of large cast-in-situ bored pile and using method thereof Download PDFInfo
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- CN111042131B CN111042131B CN201911328965.2A CN201911328965A CN111042131B CN 111042131 B CN111042131 B CN 111042131B CN 201911328965 A CN201911328965 A CN 201911328965A CN 111042131 B CN111042131 B CN 111042131B
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- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/005—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof removing the top of placed piles of sheet piles
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Abstract
The invention relates to the technical field of building construction, in particular to a pile head breaking device of a large cast-in-situ bored pile and a using method thereof, it includes the loading board, the loading board is provided with the through-hole, the one end of pile head is passed the through-hole and is made the loading board cover establish in the outside of pile head, the loading board is located the pile head and treats the below of line of cut, the pile head is treated line of cut department and has been seted up a plurality of and separates the groove, two fixed plates of top fixedly connected with of loading board, two fixed plate symmetries set up the both sides of pile head, one side that the pile head was kept away from to every fixed plate all is provided with supporting component, all be provided with a plurality of wedge between every fixed plate and the pile head, the wedge corresponds the setting with separating the groove, the reinforcing bar of steel reinforcement cage is located between the adjacent wedge, be provided with the promotion subassembly between a plurality of wedge and the fixed plate, the fixed plate is kept away from and is provided with the centre gripping subassembly between the one end of loading board and the pile head. The invention has the effect of reducing the labor intensity of workers.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a pile head breaking device of a large cast-in-situ bored pile and a using method thereof.
Background
The existing cast-in-situ bored pile is widely applied to bridge engineering due to reliable quality, simple construction process and strong stratum adaptability. When the cast-in-situ bored pile is used for pouring concrete, because a layer of laitance can appear on the surface of the pile head in the vibrating process of the concrete, the pile top elevation of the cast-in-situ bored pile is 0.5-1.0m higher than the designed pile top elevation during pouring so as to ensure the strength of pile foundation concrete, and the pile head higher than the designed pile top elevation is cut off after the concrete is solidified. With the development of road and bridge, the diameter of the cast-in-place pile is larger and larger.
When the pile head of the existing large-scale cast-in-place pile is cut, firstly, a cutting line is marked at the position, 10-15cm higher than the designed pile top elevation, then, a protective layer between the cutting line and the pile top of the cast-in-place pile is broken through by using an air pick, a reinforcement cage in the cast-in-place pile is leaked out, then, symmetrical cutting holes are formed at the cutting line, then, an iron chisel is plugged into the cutting holes, and workers hammer the iron chisel by using an iron hammer to separate the pile head from the pile body.
The above prior art solutions have the following drawbacks: the workman cuts apart the bored concrete pile at hammering drill rod, especially cuts apart the pile head of large-scale bored concrete pile, and workman intensity of labour is big.
Disclosure of Invention
The invention aims to provide a pile head breaking device of a large cast-in-situ bored pile and a using method thereof, and the purpose of reducing the labor intensity of workers is achieved.
One of the above objects of the present invention is achieved by the following technical solutions:
the utility model provides a pile head removing device of large-scale bored concrete pile, the device includes the loading board, the loading board is provided with the through-hole, the one end of pile head is passed the through-hole and is made the loading board cover establish in the outside of pile head, the loading board is located the pile head and treats the below of line of cut, the pile head is treated line of cut department and is seted up a plurality of and is separated the groove, two fixed plates of top fixedly connected with of loading board, two fixed plate symmetries set up the both sides of pile head, one side that the pile head was kept away from to every fixed plate all is provided with supporting component, all be provided with a plurality of wedge between every fixed plate and the pile head, the wedge corresponds the setting with the groove of separating, the reinforcing bar of steel reinforcement cage is located between the adjacent wedge, be provided with between a plurality of wedge and the fixed plate and promote the subassembly, the fixed plate is kept away from and is provided with the centre gripping subassembly between the one end of loading board and the pile head.
By adopting the technical scheme, the bearing plate is fixed with the pile head to support the device adult, so that the stability of the device in use is improved; then the supporting component is utilized to support the fixing plate, and the clamping component enables the top end of the fixing plate and the pile head to be stable, so that the stability of the whole device in use is further improved; the top end of the bearing plate is symmetrically provided with the fixing plate and the wedge-shaped block arranged between the fixing plate and the pile head, and the wedge-shaped block corresponds to the separation groove, so that the convenience of splicing the wedge-shaped block and the pile head is improved; and finally, pushing the wedge block by using the pushing assembly to insert the wedge block into the separation groove of the pile head, and segmenting the part to be cut of the pile head and one end of the pile head close to the ground by using the property of the wedge block due to the continuous insertion of the wedge block so as to achieve the purpose of reducing the labor intensity of workers.
The invention is further configured to: the promotion subassembly includes catch plate and pneumatic cylinder, and the catch plate setting is between wedge and fixed plate, and the one end that the separation groove was kept away from to a plurality of wedge all with catch plate fixed connection, the pneumatic cylinder is provided with a plurality of, and every pneumatic cylinder all sets up between catch plate and fixed plate, the dead lever of every pneumatic cylinder all with fixed plate fixed connection, the movable rod of every pneumatic cylinder all with catch plate fixed connection.
By adopting the technical scheme, when the pile head is divided, the hydraulic cylinder is started firstly, the thrust generated by the hydraulic cylinder is transmitted to the pushing plate, and the pushing plate drives the wedge-shaped blocks to slide in the separation grooves simultaneously, so that the wedge-shaped blocks continuously slide into the separation grooves; through setting up the catch plate, make the pneumatic cylinder promote a plurality of wedge simultaneously and slide, promote wedge simultaneous movement's convenience.
The invention is further configured to: the centre gripping subassembly includes grip ring and lead screw, and the grip ring is provided with two, and two grip ring symmetries set up, and two grip rings all are located between fixed plate and the pile head, and two grip rings all with pile head butt, one side that the pile head was kept away from to the grip ring rotates and is connected with the lead screw, and the one end that the grip ring was kept away from to the lead screw passes the fixed plate, lead screw and fixed plate threaded connection.
Through adopting above-mentioned technical scheme, when using the centre gripping subassembly, because the one end of lead screw rotates with the grip ring to be connected, so rotate the lead screw and make the lead screw drive the grip ring and be close to the pile head, when the one end that the lead screw was kept away from to the grip ring was when pile head butt, because lead screw and fixed plate threaded connection, so the position of grip ring and pile head is fixed, centre gripping subassembly simple structure, convenient to use promote the convenience when using.
The invention is further configured to: one end of the screw rod, which is far away from the clamping ring, is fixedly connected with a rotating handle.
Through adopting above-mentioned technical scheme, owing to rotate handle and lead screw fixed connection, so rotate the rotation handle, rotate the handle and drive the lead screw and rotate, convenience when promoting the lead screw and rotate.
The invention is further configured to: the supporting component comprises a supporting rod and a supporting plate, the supporting rod is arranged in an inclined mode and comprises a first rod and a second rod, one end of the first rod is hinged to the fixing plate, an adjusting component is arranged between one end, away from the fixing plate, of the first rod and the second rod, and one end, away from the first rod, of the second rod is fixedly connected with the supporting plate.
Through adopting above-mentioned technical scheme, when using supporting component, at first adjust the position of first pole and second pole through adjusting component to utilize adjusting component to make the rigidity of first pole and second pole, make the second pole drive backup pad and ground butt, utilize backup pad and backup pad to support the lateral wall of fixed plate, stability when promoting the fixed plate and using.
The invention is further configured to: the adjusting assembly comprises an adjusting groove and an adjusting bolt, the adjusting groove is formed in one end, far away from the supporting plate, of the second rod, one end, far away from the fixing plate, of the first rod is located in the adjusting groove, the adjusting bolt is in threaded connection with the side wall of the adjusting groove, and the adjusting bolt penetrates through the side wall of the adjusting groove and abuts against the first rod.
Through adopting above-mentioned technical scheme, when using adjusting part, rotate adjusting bolt and make adjusting bolt keep away from the adjustment tank, then adjust the position of the relative first pole of second pole, make first pole slide in the adjustment tank, when the second pole drives backup pad and ground butt, it makes adjusting bolt and first pole butt to rotate adjusting bolt, because the lateral wall threaded connection of adjusting bolt and adjustment tank, so adjusting bolt fixes first pole in the adjustment tank, the rigidity of first pole and second pole, adjusting part simple structure, high durability and convenient use, promote the convenience when using.
The invention is further configured to: one side of the supporting plate, which is far away from the second rod, is provided with a plurality of spines, the pointed ends of the spines are far away from the supporting rod, and each spine is fixedly connected with the supporting plate.
Through adopting above-mentioned technical scheme, when backup pad and ground butt, the spine pierces in the ground, utilizes the spine to make backup pad and the rigidity on ground, stability when promotion supporting component uses.
The invention is further configured to: the loading board includes first board and second board, the equal fixed connection fixed plate of first board and second board, be provided with fixed subassembly between first board and the second board, fixed subassembly includes first fixed block, the second fixed block, fixing bolt and fixation nut, the lateral wall fixed connection of first fixed block and first board, the lateral wall fixed connection of second fixed block and second board, when first board and second board butt, first fixed block and second fixed block butt, fixing bolt pass behind first fixed block and the second fixed block with fixation nut threaded connection.
By adopting the technical scheme, after the first plate and the second plate of the fixing assembly are fixed, the bearing plate and the pile head are kept fixed, and the convenience of connecting the device and the pile head is improved; when the loading board is connected with the pile head, at first with the lateral wall butt of first board and pile head, then with the lateral wall butt of second board and pile head, make second fixed block and first fixed block butt, pass first fixed block with fixing bolt from the one side that second fixed block was kept away from to first fixed block again, then pass the second fixed block again, in the one end of keeping away from first fixed block with fixing nut threaded connection at fixing bolt, rotate the lateral wall butt that fixing nut made fixing nut and second fixed block, utilize fixing bolt and fixing nut to fix first fixed block and second fixed block together, make first board and second board clamp tight pile head, make first board and second board fixed with the pile head, stability when promoting loading board and pile head and being connected.
The second aim of the invention is realized by the following technical scheme:
a use method of a pile head breaking device of a large cast-in-situ bored pile comprises the following steps:
s1, stripping protective layer: firstly, measuring the elevation of a designed pile top on a pile head, then moving upwards by 10-15cm on the basis of the elevation of the designed pile top for marking a cutting line, stripping a protective layer from the cutting line to the area of the pile top by using an air pick, and then forming a separation groove at the position, close to the cutting line, of the pile head;
s2, mounting a bearing plate: moving the first plate and the second plate to the pile head, abutting the first plate and the second plate against the pile head to align the wedge-shaped block with the separation groove, driving the first fixing block to abut against the second fixing block driven by the second plate by the first plate, penetrating the fixing bolt through the first fixing block and the second fixing block, then connecting the fixing bolt with the fixing nut through the fixing nut and the fixing bolt, and connecting and fixing the first fixing block and the second fixing block through the fixing nut and the fixing bolt to connect and fix the bearing plate with the pile head;
s3, adjusting the supporting rod: rotating the adjusting bolt to enable the adjusting bolt to be far away from the first rod, then drawing the second rod to enable the second rod to drive the supporting plate to be abutted against the ground, stepping the supporting plate to step the spine into the ground, and then rotating the adjusting bolt to enable the adjusting bolt to be abutted against the first rod;
s3, adjusting the clamping assembly: adjusting the rotating handle to enable the rotating handle to drive the screw rod to rotate around the axis of the screw rod, enabling the screw rod to push the clamping rings to move towards the pile head, enabling the screw rod to be abutted against the pile head, and clamping the pile head by utilizing the two clamping rings;
s4, dividing the pile head: simultaneously starting the hydraulic cylinders to enable the plurality of hydraulic cylinders to simultaneously apply force to the pushing plate, enabling the pushing plate to drive the wedge-shaped block to be inserted into the inserting groove, continuously pushing the wedge-shaped block by using the hydraulic cylinders to enable the wedge-shaped block to gradually enter the separation groove, and gradually separating the pile head above the separation groove by using the wedge-shaped block;
s5, separating the segmented pile head from the reinforcement cage: and binding the segmented pile heads by using a rope, and then driving the segmented pile heads to be separated from the reinforcement cage by using a crane through the rope.
By adopting the technical scheme, firstly, the protective layer of the cast-in-place pile is stripped, the steel reinforcement cage in the cast-in-place pile is leaked, the separation groove is convenient to be arranged between the steel reinforcements of the steel reinforcement cage, the wedge block is convenient to be placed between the steel reinforcements of the steel reinforcement cage in the later period, and the wedge block is prevented from being abutted against the steel reinforcements; then, mounting the bearing plate, dividing the bearing plate into a first plate and a second plate, fixing by using a fixing assembly, and lifting to the convenience when the device is connected with a pile head; the supporting rods are used for supporting the fixing plate in an inclined mode, and the stability of the fixing plate is improved when the hydraulic cylinder is used for dividing the pile head; then utilize the centre gripping subassembly to fix the pile head between two fixed plates again, avoid the pile head to take place the skew at the segmentation in-process, lead to the reinforcing bar to buckle the back and cause the damage to the bored concrete pile of uncut part, utilize the pneumatic cylinder to promote the wedge through the slurcam at last, make the wedge cut apart the pile head, will cut apart the pile head again at last and steel reinforcement cage separation, reach the purpose that reduces workman intensity of labour.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the pile head is divided by arranging the bearing plate, the fixing plate and the wedge block and arranging the pushing assembly between the wedge block and the fixing plate and pushing the wedge block into the inserting groove by utilizing the pushing assembly, so that the aim of reducing the labor intensity of workers is fulfilled;
2. by arranging the supporting component, the convenience of the fixing plate in use is improved;
3. through setting up the bracing piece into first pole and second pole to set up the adjusting part between first pole and second pole, flexibility when promoting the bracing piece and using.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;
fig. 3 is a schematic view intended to show an adjustment assembly.
In the figure, 1, fixing plate; 11. a carrier plate; 111. a first plate; 112. a second plate; 12. a wedge block; 2. pile head; 21. a reinforcement cage; 22. a separation tank; 3. a pushing assembly; 31. a push plate; 32. a hydraulic cylinder; 4. a clamping assembly; 41. a clamp ring; 42. a lead screw; 43. rotating the handle; 5. a support assembly; 51. a support bar; 511. a first lever; 512. a second lever; 52. a support plate; 521. pricking with a sharp point; 6. an adjustment assembly; 61. an adjustment groove; 62. adjusting the bolt; 7. a fixing assembly; 71. a first fixed block; 72. a second fixed block; 73. fixing the bolt; 74. and (5) fixing the nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and 2, the pile head breaking device for a large-sized cast-in-situ bored pile and the using method thereof disclosed by the present invention comprises a bearing plate 11, fixing plates 1 and a wedge block 12, wherein the bearing plate 11 comprises a first plate 111 and a second plate 112, the first plate 111 and the second plate 112 are both horizontally arranged, the first plate 111 and the second plate 112 are both abutted against the side wall of the pile head 2, a fixing assembly 7 is arranged between the first plate 111 and the second plate 112, the bearing plate 11 is sleeved outside the pile head 2, the bearing plate 11 is located below the line to be cut of the pile head 2, a plurality of separating grooves 22 are arranged at the line to be cut of the pile head 2, the top ends of the first and second plates 112 are respectively provided with one fixing plate 1, the two fixing plates 1 are both vertically arranged, the bottom end of each fixing plate 1 is fixedly connected with the top end of the bearing plate 11, the two fixing plates 1 are symmetrically arranged at both sides of the pile head 2, the side wall of each fixing plate 1 far away from the pile head 2 is provided with a support assembly 5, all be provided with a plurality of wedge 12 between every fixed plate 1 and pile head 2, the equal level setting of every wedge 12, wedge 12 and separation groove 22 correspond the setting, and the reinforcing bar of steel reinforcement cage 21 is located the gap between the adjacent wedge 12, is provided with between wedge 12 and the fixed plate 1 and promotes subassembly 3, is provided with centre gripping subassembly 4 between the top of fixed plate 1 and the pile head 2. When the device is used for cutting the pile head 2, firstly, the protective layer of the pile body is peeled off, the reinforcing steel bars in the pile body are leaked out, then, the side wall of the pile body is provided with a partition groove, and the partition groove 22 is arranged between the adjacent reinforcing steel bars of the reinforcing steel bar cage 21; then, the first plate 111 of the bearing plate 11 is abutted against the pile body, the position of the bearing plate 11 relative to the pile body is adjusted, then a plurality of wedge blocks 12 are aligned with the separation groove 22, one ends of the wedge blocks 12 far away from the pushing plate 31 are inserted into the separation groove 22, then the second plate 112 is abutted against the side wall of the pile body, the first plate 111 is abutted against the second plate 112, and then the bearing plate 11 is fixed with the pile body by using the fixing component 7; reinforcing the fixed plate 1 by using the supporting component 5, and finally connecting the top end of the fixed plate 1 with the pile head 2 by using the clamping component 4; and finally, the pushing assembly 3 is utilized to push the wedge blocks 12 to simultaneously carry out inserting and matching on the inserting groove of the pile head 2, the wedge blocks 12 continuously slide in the inserting groove, the part to be cut of the pile head 2 is cut apart from the pile head 2 by utilizing the wedge blocks 12, and the purpose of reducing the labor intensity of workers is achieved.
Referring to fig. 1 and 2, the fixing assembly 7 includes a first fixing block 71, a second fixing block 72, a fixing bolt 73 and a fixing nut 74, the first fixing block 71 is fixedly connected to a side wall of the first plate 111, the second fixing block 72 is fixedly connected to a side wall of the second plate 112, when the first plate 111 abuts to the second plate 112, the first fixing block 71 abuts to the second fixing block 72, the fixing bolt 73 sequentially penetrates through the first fixing block 71 and the second fixing block 72 and then is in threaded connection with the fixing nut 74, and the fixing nut 74 abuts to a side wall of the second fixing block 72. When the first plate 111 and the second plate 112 are abutted, the first plate 111 drives the first fixing block 71 to abut against the second fixing block 72 of the second plate 112, then the fixing bolt 73 sequentially penetrates through the first fixing block 71 and the second fixing block 72, the fixing nut 74 and one end of the fixing bolt 73 far away from the first fixing block 71 are in threaded connection, the fixing nut 74 is rotated to drive the first fixing block 71 and the second fixing block 72 to be clamped, and the first plate 111 and the second plate 112 are connected and fixed along with the first fixing block 71 and the second fixing block 72.
Referring to fig. 1, the clamping assembly 4 includes a clamping ring 41, a lead screw 42 and a rotating handle 43, the clamping ring 41 is provided with two, the two clamping rings 41 are symmetrically arranged, the two clamping rings 41 are located between the fixing plate 1 and the pile head 2, the two clamping rings 41 are abutted to the pile head 2, the lead screw 42 is rotatably connected with one side of the clamping ring 41 far away from the pile head 2, one end of the lead screw 42 far away from the clamping ring 41 is connected with the fixing plate 1 through threads, and one end of the lead screw 42 far away from the clamping ring 41 penetrates through the fixing plate 1 and then is fixedly connected with the rotating handle 43. When the top of fixed plate 1 is connected with pile head 2, at first adjust and rotate handle 43 and make and rotate handle 43 and drive lead screw 42 and rotate around self axis, the rotation of lead screw 42 drives grip ring 41 and pile head 2 butt, utilizes two grip rings 41 to fix pile head 2 between two grip rings 41, promotes the connectivity between two fixed plates 1 and pile head 2.
Referring to fig. 1 and 3, the support assembly 5 includes a support rod 51 and a support plate 52, the support rod 51 is disposed obliquely, the support plate 52 is disposed horizontally, the support rod 51 includes a first rod 511 and a second rod 512, one end of the first rod 511 is hinged to the fixed plate 1, one end of the second rod 512 is fixedly connected to the top end of the support plate 52, an adjusting assembly 6 is disposed between one end of the first rod 511 away from the fixed plate 1 and one end of the second rod 512 away from the support plate 52, the adjusting assembly 6 includes an adjusting slot 61 and an adjusting bolt 62, the adjusting slot 61 is disposed at one end of the second rod 512 away from the support plate 52, one end of the first rod 511 away from the fixed plate 1 is located in the adjusting slot 61, the adjusting bolt 62 is in threaded connection with a side wall of the adjusting slot 61, the adjusting bolt 62 passes through the side wall of the adjusting slot 61 to abut against the first rod 511, the bottom end of the support plate 52 is provided with a plurality of spikes 521, the tips of the spikes 521 away from the support plate 52, each spike 521 is fixedly connected to the support plate 52. When the fixing plate 1 is supported and reinforced, the adjusting bolt 62 is rotated to make the adjusting bolt 62 far away from the first rod 511, then the second rod 512 is drawn to make the second rod 512 slide downwards relative to the first rod 511, the second rod 512 drives the supporting plate 52 to approach to the ground, when the tip of the spine 521 abuts against the ground, the supporting plate 52 is stepped to make the supporting plate 52 insert the spine 521 into the ground, then the adjusting bolt 62 is rotated to make the adjusting bolt 62 abut against the first rod 511, and the first rod 511 is fixed in the adjusting groove 61.
Referring to fig. 1, pushing assembly 3 includes catch plate 31 and pneumatic cylinder 32, the vertical setting of catch plate 31, catch plate 31 sets up between wedge 12 and fixed plate 1, the one end that a plurality of wedge 12 kept away from separating groove 22 all keeps away from one side fixed connection of fixed plate 1 with catch plate 31, pneumatic cylinder 32 is provided with a plurality of, every pneumatic cylinder 32 all sets up between catch plate 31 and fixed plate 1, the dead lever of every pneumatic cylinder 32 all is close to one side fixed connection of catch plate 31 with fixed plate 1, the movable rod of every pneumatic cylinder 32 all is close to one side fixed connection of fixed plate 1 with catch plate 31. When the pushing assembly 3 is used, the hydraulic cylinder 32 is started, the pushing force applied by the hydraulic cylinder 32 pushes the pushing plate 31, the pushing plate 31 drives the plurality of wedge blocks 12 to continuously insert into the inserting groove at the same time, and the pile head 2 is cut off.
The implementation principle of the embodiment is as follows: when the device is used for separating the pile head 2, firstly, the protective layer of the pile body is peeled off, the reinforcing steel bars in the pile body are leaked out, then, the side wall of the pile body is provided with a partition groove, and the partition groove 22 is arranged between the adjacent reinforcing steel bars of the reinforcing steel bar cage 21; then, a first plate 111 of the bearing plate 11 is abutted against the pile body, the position of the bearing plate 11 relative to the pile body is adjusted, then a plurality of wedge blocks 12 are aligned with the separation groove 22, one ends of the wedge blocks 12 far away from the pushing plate 31 are inserted into the separation groove 22, then a second plate 112 is abutted against the side wall of the pile body, the first plate 111 is abutted against the second plate 112, then the fixing bolts 73 sequentially penetrate through the first fixing block 71 and the second fixing block 72 and then are in threaded connection with the fixing nuts 74, and the bearing plate 11 is fixed with the pile body; then, the adjusting screw is rotated to enable the adjusting bolt 62 to be far away from the first rod 511, then the second rod 512 is pulled to enable the second rod 512 to slide relative to the first rod 511, the second rod 512 drives the support plate 52 to approach the ground, force is applied to the support plate 52, the spine 521 at the bottom end of the support plate 52 is inserted into the ground, then the adjusting bolt 62 is rotated to enable the adjusting bolt 62 to be abutted against the first rod 511, and the first rod 511 is fixed in the adjusting groove 61; then, the rotating handle 43 is rotated to drive the screw rod 42 to rotate around the axis of the screw rod 42, the screw rod 42 rotates to drive the clamping rings 41 to abut against the pile head 2, and the two clamping rings 41 clamp the pile head 2 from two sides to fix the pile head 2; and finally, starting the hydraulic cylinder 32 to apply force to the pushing plate 31 by the hydraulic cylinder 32, so that the pushing plate 31 drives the plurality of wedge blocks 12 to simultaneously carry out splicing fit on the splicing groove of the pile head 2, and along with the continuous sliding of the wedge blocks 12 in the splicing groove, the part to be cut of the pile head 2 is cut apart from the pile head 2 by the wedge blocks 12.
Example 2
A use method of a pile head breaking device of a large cast-in-situ bored pile comprises the following steps:
s1, stripping protective layer: firstly, measuring the elevation of the designed pile top on the pile head 2, then moving upwards for 10-15cm on the basis of the elevation of the designed pile top for marking the cutting line, then stripping the protective layer from the cutting line to the area of the pile top by using an air pick, and then forming a separation groove 22 at the position, close to the cutting line, of the pile head 2.
S2, mounting of the bearing plate 11: the first plate 111 and the second plate 112 are moved to the pile head 2, the first plate 111 and the second plate 112 are abutted to the pile head 2, the wedge block 12 is aligned to the separation groove 22, the first plate 111 drives the first fixing block 71 to be abutted to the second fixing block 72 driven by the second plate 112, the fixing bolt 73 penetrates through the first fixing block 71 and the second fixing block 72 and then is in threaded connection with the fixing nut 74, the first fixing block 71 and the second fixing block 72 are connected and fixed through the fixing nut 74 and the fixing bolt 73, and the bearing plate 11 is connected and fixed with the pile head 2.
S3, adjusting the supporting rod 51: the adjusting bolt 62 is rotated to make the adjusting bolt 62 away from the first rod 511, then the second rod 512 is pulled to make the second rod 512 drive the supporting plate 52 to abut against the ground, the supporting plate 52 is stepped on to step the spine 521 into the ground, and then the adjusting bolt 62 is rotated to make the adjusting bolt 62 abut against the first rod 511.
S3, adjusting the clamping assembly 4: adjusting the rotation handle 43 causes the rotation handle 43 to drive the lead screw 42 to rotate around the axis of the lead screw 42, the lead screw 42 pushes the clamping ring 41 to move towards the pile head 2, the lead screw 42 is abutted to the pile head 2, and the pile head 2 is clamped by the two clamping rings 41.
S4, dividing the pile head 2: and simultaneously starting the hydraulic cylinders 32 to enable the plurality of hydraulic cylinders 32 to apply force to the push plate 31 simultaneously, enabling the push plate 31 to drive the wedge-shaped block 12 to be inserted into the insertion groove, continuously pushing the wedge-shaped block 12 by using the hydraulic cylinders 32 to enable the wedge-shaped block 12 to gradually enter the separation groove 22, and gradually separating the pile head 2 above the separation groove 22 by using the wedge-shaped block 12.
S5, separating the segmented pile head 2 from the reinforcement cage 21: and binding the segmented pile head 2 by using a rope, and then driving the segmented pile head 2 to be separated from the reinforcement cage 21 by using a crane through the rope.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a pile head removing device of large-scale drilling bored concrete pile which characterized in that: the device comprises a bearing plate (11), wherein the bearing plate (11) is provided with a through hole, one end of a pile head (2) penetrates through the through hole to enable the bearing plate (11) to be sleeved on the outer side of the pile head (2), the bearing plate (11) is positioned below a line to be cut of the pile head (2), a plurality of separation grooves (22) are formed in the line to be cut of the pile head (2), two fixing plates (1) are fixedly connected to the top end of the bearing plate (11), the two fixing plates (1) are symmetrically arranged on two sides of the pile head (2), a supporting assembly (5) is arranged on one side, away from the pile head (2), of each fixing plate (1), a plurality of wedge blocks (12) are arranged between each fixing plate (1) and the pile head (2), the wedge blocks (12) are arranged corresponding to the separation grooves (22), a reinforcing steel bar of a steel bar cage (21) is positioned between the adjacent wedge blocks (12), a pushing assembly (3) is arranged between each wedge block (12) and the fixing plate (1), be provided with between one end that loading board (11) was kept away from in fixed plate (1) and pile head (2) centre gripping subassembly (4), centre gripping subassembly (4) are including clamping ring (41) and lead screw (42), and clamping ring (41) are provided with two, and two clamping ring (41) symmetry set up, and two clamping ring (41) all are located between fixed plate (1) and pile head (2), and two clamping ring (41) all with pile head (2) butt, lead screw (42) are rotated with one side that pile head (2) were kept away from in clamping ring (41) and are connected, and fixed plate (1) is passed to the one end that clamping ring (41) were kept away from in lead screw (42), lead screw (42) and fixed plate (1) threaded connection, the one end fixedly connected with rotation handle (43) that clamping ring (41) were kept away from in lead screw (42).
2. The pile head breaking device of the large cast-in-situ bored pile according to claim 1, wherein: promote subassembly (3) including slurcam (31) and pneumatic cylinder (32), slurcam (31) set up between wedge (12) and fixed plate (1), the one end that the separation groove (22) was kept away from in a plurality of wedge (12) all with slurcam (31) fixed connection, pneumatic cylinder (32) are provided with a plurality of, every pneumatic cylinder (32) all set up between slurcam (31) and fixed plate (1), the dead lever of every pneumatic cylinder (32) all with fixed plate (1) fixed connection, the movable rod of every pneumatic cylinder (32) all with slurcam (31) fixed connection.
3. The pile head breaking device of the large cast-in-situ bored pile according to claim 1, wherein: supporting component (5) include bracing piece (51) and backup pad (52), bracing piece (51) slope sets up, bracing piece (51) include first pole (511) and second pole (512), the one end and the fixed plate (1) of first pole (511) are articulated, be provided with between one end and second pole (512) of fixed plate (1) are kept away from in first pole (511), the one end and backup pad (52) fixed connection of first pole (511) are kept away from in second pole (512).
4. The pile head breaking device of the large cast-in-situ bored pile according to claim 3, wherein: adjusting part (6) include adjustment tank (61) and adjusting bolt (62), and the one end of keeping away from backup pad (52) is seted up in second pole (512) in adjustment tank (61), and the one end that fixed plate (1) was kept away from in first pole (511) is located adjustment tank (61), and adjusting bolt (62) and the lateral wall threaded connection of adjustment tank (61), and adjusting bolt (62) pass the lateral wall and the first pole (511) butt of adjustment tank (61).
5. The pile head breaking device of the large cast-in-situ bored pile according to claim 3, wherein: one side of the support plate (52) far away from the second rod (512) is provided with a plurality of spikes (521), the tips of the spikes (521) are far away from the support rod (51), and each spike (521) is fixedly connected with the support plate (52).
6. The pile head breaking device of the large cast-in-situ bored pile according to claim 1, wherein: the bearing plate (11) comprises a first plate (111) and a second plate (112), the first plate (111) and the second plate (112) are fixedly connected with a fixing plate (1), a fixing assembly (7) is arranged between the first plate (111) and the second plate (112), the fixing assembly (7) comprises a first fixing block (71), a second fixing block (72), a fixing bolt (73) and a fixing nut (74), the first fixing block (71) is fixedly connected with the side wall of the first plate (111), the second fixing block (72) is fixedly connected with the side wall of the second plate (112), when the first plate (111) is abutted against the second plate (112), the first fixing block (71) is abutted against the second fixing block (72), and the fixing bolt (73) is in threaded connection with the fixing nut (74) after penetrating through the first fixing block (71) and the second fixing block (72).
7. The application method of the pile head breaking device of the large cast-in-situ bored pile is characterized by comprising the following steps of:
s1, stripping protective layer: firstly, measuring the elevation of the designed pile top on the pile head (2), then moving upwards by 10-15cm on the basis of the elevation of the designed pile top for marking a cutting line, stripping a protective layer from the cutting line to the area of the pile top by using an air pick, and then arranging a separation groove (22) at the position, close to the cutting line, of the pile head (2);
s2, mounting bearing plate (11): the method comprises the steps that a first plate (111) and a second plate (112) are moved to a pile head (2), the first plate (111) and the second plate (112) are abutted to the pile head (2), a wedge block (12) is aligned to a separation groove (22), the first plate (111) drives a first fixing block (71) to be abutted to a second fixing block (72) driven by the second plate (112), a fixing bolt (73) penetrates through the first fixing block (71) and the second fixing block (72) and then is in threaded connection with a fixing nut (74), the first fixing block (71) and the second fixing block (72) are fixedly connected through the fixing nut (74) and the fixing bolt (73), and a bearing plate (11) is fixedly connected with the pile head (2);
s3, adjusting the supporting rod (51): rotating the adjusting bolt (62) to enable the adjusting bolt (62) to be far away from the first rod (511), then drawing the second rod (512) to enable the second rod (512) to drive the supporting plate (52) to be abutted against the ground, stepping the supporting plate (52) to step the spine (521) into the ground, and then rotating the adjusting bolt (62) to enable the adjusting bolt (62) to be abutted against the first rod (511);
s3, adjusting the clamping assembly (4): adjusting the rotating handle (43) to enable the rotating handle (43) to drive the screw rod (42) to rotate around the axis of the screw rod, enabling the screw rod (42) to push the clamping rings (41) to move towards the pile head (2), enabling the screw rod (42) to be abutted against the pile head (2), and clamping the pile head (2) by utilizing the two clamping rings (41);
s4, dividing the pile head (2): simultaneously starting the hydraulic cylinders (32), enabling the plurality of hydraulic cylinders (32) to apply force to the push plate (31) simultaneously, enabling the push plate (31) to drive the wedge-shaped block (12) to be inserted into the insertion groove, continuously pushing the wedge-shaped block (12) by using the hydraulic cylinders (32), enabling the wedge-shaped block (12) to gradually enter the separation groove (22), and gradually separating the pile head (2) above the separation groove (22) by using the wedge-shaped block (12);
s5, separating the divided pile head (2) from the reinforcement cage (21): and binding the segmented pile head (2) by using a rope, and then driving the segmented pile head (2) to be separated from the reinforcement cage (21) by using a crane through the rope.
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