CN112302000A - Precast pile foundation structure and intelligent auxiliary construction method - Google Patents

Abstract

The invention provides a precast pile foundation structure and an intelligent auxiliary construction method, which comprise the following steps: the device comprises a prefabricated column, a covering layer and a rock layer, wherein the covering layer covers the top surface of the rock layer, a deposition block capable of linkage expansion positioning is embedded in the rock layer, the center of the deposition block is inserted with a prefabricated column in a matching way, the top surface of the deposition block is sleeved with a balance block which can be butted, fastened and fixed outside the prefabricated column, the invention adopts the rock layer surface as the pile foundation positioning base, effectively solves the problem that the existing pile foundation adopts the penetration with longer freedom degree to ensure the positioning stability to form the fixing base, is more suitable for fixing the pile foundation in a shallow region of a covering layer, simultaneously, the degree of freedom of the prefabricated column is limited by upward increasing the balance block, opposite pulling force is formed by matching the positive block and the fastening mechanism, and the side supporting and stabilizing effect on the prefabricated column is greatly improved.

Description

Precast pile foundation structure and intelligent auxiliary construction method

Technical Field

The invention relates to the technical field of hydraulic pile foundations, in particular to a precast pile foundation structure and an intelligent auxiliary construction method.

Background

The pile foundation structure is one of the important basic structure forms in the water transportation engineering, and is widely applied to a wharf structure, and because a plurality of safety problems can occur if the pile is poured in the wharf, only precast piles can be adopted. For the pile foundation bearing the horizontal force or moment, the penetration depth of the pile foundation needs to meet the condition of the elastic long pile, namely, the penetration depth of the pile foundation bearing the horizontal force or moment needs to meet a certain embedment depth requirement. In the shallow region of overburden, the pile sinking of precast pile is difficult to sink to the design requirement, need consider the necessary steady stake measure of precast pile at this moment in order to satisfy the design requirement.

The prior technical scheme for stabilizing the precast pile is few, and the invention patent with the application number of 201410660120.4 discloses the embedment of a high-pile foundation, but the invention aims to reduce the free length of a foundation and increase the lateral stability of the foundation of the high pile, and the precast pile cannot be effectively fixed.

Therefore, it is necessary to provide a new precast pile foundation structure and an intelligent auxiliary construction method to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides a high-stability precast pile foundation structure and an intelligent auxiliary construction method.

The invention provides a precast pile foundation structure and an intelligent auxiliary construction method, which comprise the following steps: the device comprises a prefabricated column, a covering layer and a rock layer, wherein the covering layer covers the top surface of the rock layer, a deposition block capable of being linked, expanded and positioned is embedded in the rock layer, the prefabricated column is inserted in the center of the deposition block in a matching mode, a balance block capable of being fixedly fastened in an abutting mode is sleeved on the top surface of the deposition block and located outside the prefabricated column, four positive blocks are symmetrically placed on the side edge of the deposition block on the surface of the rock layer, a fastening mechanism capable of being fixedly connected in a double-fastening mode is fixed on the surface of each positive block, and the fastening mechanism is correspondingly and fixedly connected with the end portion of;

the deposition block comprises a guide wheel, a frustum, a containing groove, a shaft lever, a first winding wheel, a clamping rod, a first steel wire rope, a hanging block, a slot, a wire guide groove and a abdicating groove, the central position of the frustum is provided with a slot matched with the prefabricated column structure, the outer wall of the frustum is provided with a containing slot, a shaft lever is rotatably arranged in the accommodating groove, clamping rods are symmetrically fixed on the outer wall of the shaft lever, first winding wheels are symmetrically fixed on the surface of the shaft lever, and the outer wall of the first winding wheel is wound with a first steel wire rope, the inner wall of the frustum is provided with a wire guide groove at the corresponding position of the first winding wheel, the wire groove is communicated with the slot, one end of the wire groove close to the slot is rotatably provided with a guide wheel, and the first steel wire rope passes through the wire groove and is in winding connection with the guide wheel, the groove of stepping down has all been seted up to slot inner wall central point, prefabricated post surface symmetry is fixed with and steps down groove structure complex hanger block.

Preferably, the balancing pieces are stacked in a double-layer mode, and the balancing pieces are vertically staggered.

Preferably, the balancing piece includes block, opening, abaculus, caulking groove, fastening screw and dead slot, the block is the symmetry setting, terminal surface one side of block is fixed with the abaculus, and the terminal surface of block is located the abaculus symmetric position and has seted up the caulking groove, and the abaculus cooperates with the caulking groove and peg graft, block surface position corresponds the position and has seted up the dead slot in the caulking groove, fastening screw is installed to the interlude in the dead slot, and fastening screw passes the caulking groove and is connected with the abaculus meshing, the central point of the butt joint face of block puts and has seted up the opening, and opening and precast column structure cooperation.

Preferably, the fastening mechanism comprises a fluted disc, a main shell, a second winding wheel, a second steel wire rope, a wire hole, a guide block, an extrusion block, a lifting plate, a guide post and an adjusting screw, the main shell is fixedly connected with the righting block, a second winding wheel is rotatably arranged on the bottom surface inside the main shell, a second steel wire rope is wound outside the second winding wheel, a wire hole is arranged on the surface of the main shell, the second steel wire rope penetrates through the wire hole and is fixedly connected with the balance block, a guide block is fixed on the inner wall of the main shell at the edge of the wire hole, a lifting plate is arranged above the second winding wheel, a fluted disc is fixed on the bottom surface of the lifting plate and the top surface of the second winding wheel correspondingly, a guide post is fixed on the top surface inside the main shell, and the guide post is in sliding cross connection with the lifting plate, an extrusion block is fixed on the bottom surface of the lifting plate above the guide block, and an adjusting screw is engaged and installed at the center of the top surface of the main shell.

Preferably, the surface of the guide block is provided with an arc-shaped groove, two sides of the extrusion block are inclined to match with the arc-shaped groove, and the surface of the arc-shaped groove of the guide block and the surface of the extrusion block are both compounded with rubber layers.

Preferably, the clamping rod is in a square strip shape and is made of alloy steel materials.

The invention also provides an intelligent auxiliary construction method of the precast pile foundation structure, which depends on an intelligent construction terminal to carry out intelligent auxiliary construction, wherein the intelligent construction terminal comprises a high-precision detection system, a big data artificial intelligence decision-making system, a signal transmission processing system and a database, and is characterized by comprising the following steps of:

1) inputting the existing data of the covering layer and the rock layer of the construction area in a database, and inputting the design data of the pile foundation structure of the precast pile;

2) impacting a pre-buried pit on the surface of the rock layer through a crushing machine, and removing a tip from the bottom surface of the pre-buried pit to form a horizontal plane;

3) placing the deposition block in the pre-buried pit through a lifting machine, and performing impact compaction on the deposition block through compaction equipment;

4) hoisting the prefabricated column by intelligent hoisting equipment, vertically and downwards penetrating through the central position of the deposition block by intelligently controlling the prefabricated column, and continuously pressing the prefabricated column down for 3 m;

5) enabling the deposition block to expand and be clamped with the edge of the embedded pit in the descending process of the prefabricated column passing through the deposition block, continuously and horizontally compacting through a compacting machine in the collision process of the deposition block, and then injecting a first filling body into the embedded pit at the edge position of the deposition block;

6) after the filler is solidified, the balance block is lifted and placed on the top surface of the deposition block through a lifting machine, and is placed in an overlapped and normal position, and is twisted and fixed through an intelligent tool hand;

7) embedding four positioning blocks around the edge of the deposition block on the surface of the rock stratum, filling and injecting a second filling body at the edge of the positioning block, and integrally fixing a fastening mechanism on the top surface of the positioning block;

8) pulling out the telescopic end of the fastening mechanism and fixing the balance block at the corresponding position;

and 2-8, continuously detecting by a high-precision detection system, inputting detected construction data into a database, comparing and updating the detected construction data with the existing data, sending real-time construction information to a big data artificial intelligence decision-making system by an intelligent construction terminal through a signal transmission processing system, receiving an instruction made by the big data artificial intelligence decision-making system, and repeatedly operating the data comparison and updating and the instruction made by the big data artificial intelligence decision-making system in the whole step 2-8 until the pile foundation structure of the precast pile meets the design data requirement input in the step 1.

Preferably, the first filling body and the second filling body are both made of waterproof concrete.

Compared with the prior art, the precast pile foundation structure and the intelligent auxiliary construction method provided by the invention have the following beneficial effects:

the invention provides a precast pile foundation structure and an intelligent auxiliary construction method, wherein the method comprises the following steps:

1. the pile foundation positioning device is used as a pile foundation positioning foundation, a frustum is horizontally placed in an embedded pit on the surface of a rock layer, then a hoisting prefabricated column penetrates through an insertion groove, a hanging block is clamped into a abdicating groove to move downwards along with the continuous descending of the prefabricated column, the hanging block is hung with a first steel wire rope and continuously pulls the first steel wire rope to move downwards, a first winding wheel drives a shaft rod to rotate through the stable guiding of a guide wheel, so that a clamping rod is turned outwards, the clamping rods around the frustum are extruded and clamped with the inner wall of the embedded pit to form expansion type fixing, the stable foundation positioning is realized through a shallow structure, the self weight of the prefabricated column can enable the clamping rods to keep the continuous expansion type fixing, the foundation is stable, the problem that the existing pile foundation fixing ensures that the positioning is stable and adopts the long-degree-of-freedom penetration to form the fixed foundation is effectively solved, and the pile foundation fixing device is, the problem that the pile foundation is difficult to sink to the design requirement is effectively avoided;

2. the degree of freedom of prefabricated post is spacing upwards to increase through perpendicular superimposed balancing piece, and cooperation normal position piece and fastening device evenly distributed form the opposite power of dragging, greatly improves the side support stable effect to prefabricated post.

3. By adopting the intelligent auxiliary construction method, the whole data of the whole construction process of the precast pile foundation structure is monitored and updated in real time, so that the instruction of the whole construction step can be more accurate according to the real-time condition, the whole construction process is more scientific and reasonable, the construction error is greatly reduced, and the constructed structure can more easily meet the design requirement.

Drawings

FIG. 1 is a schematic view of an overall front view structure provided by the present invention;

FIG. 2 is a schematic diagram of an overall top view structure provided by the present invention;

FIG. 3 is a schematic view of a deposition block according to the present invention;

FIG. 4 is a second schematic view of a deposition block according to the present invention;

FIG. 5 is a third schematic view of a deposition block according to the present invention;

FIG. 6 is a schematic top view of a deposition block according to the present invention;

FIG. 7 is a schematic view of a balance weight structure according to the present invention;

FIG. 8 is a schematic view of a fluted disc structure according to the present invention;

fig. 9 is a schematic structural diagram of the extrusion block and the guide block provided by the present invention.

Reference numbers in the figures: 1. prefabricating a column; 2. depositing a block; 20. a guide wheel; 21. a frustum; 22. a receiving groove; 23. a shaft lever; 24. a first winding wheel; 25. a clamping rod; 26. a first wire rope; 27. hanging blocks; 28. a slot; 29. a wire guide groove; 210. a yielding groove; 3. a counterbalance; 31. a block body; 32. a port; 33. an insert block; 34. caulking grooves; 35. fastening screws; 36. an empty groove; 4. a positive bit block; 5. a fastening mechanism; 50. a fluted disc; 51. a main housing; 52. a second wind-up wheel; 53. a second wire rope; 54. a wire hole; 55. a guide block; 56. extruding the block; 57. a lifting plate; 58. a guide post; 59. an adjusting screw; 6. a cover layer; 7. a rock layer.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8 and fig. 9 in combination, wherein fig. 1 is a schematic overall front view structure provided by the present invention; FIG. 2 is a schematic diagram of an overall top view structure provided by the present invention; FIG. 3 is a schematic view of a deposition block according to the present invention; FIG. 4 is a second schematic view of a deposition block according to the present invention; FIG. 5 is a third schematic view of a deposition block according to the present invention; FIG. 6 is a schematic top view of a deposition block according to the present invention; FIG. 7 is a schematic view of a balance weight structure according to the present invention; FIG. 8 is a schematic view of a fluted disc structure according to the present invention; fig. 9 is a schematic structural diagram of the extrusion block and the guide block provided by the present invention. The precast pile foundation structure and the intelligent auxiliary construction method comprise the following steps: a prefabricated column 1, a overburden 6 and a rock layer 7.

In the specific implementation process, as shown in fig. 1 and 2, a covering layer 6 covers the top surface of the rock layer 7, a deposition block 2 capable of linkage expansion positioning is embedded inside the rock layer 7, a prefabricated column 1 is inserted into the center of the deposition block 2 in a matching manner, a balance block 3 capable of butt fastening and fixing is sleeved outside the prefabricated column 1 on the top surface of the deposition block 2, four positive blocks 4 are symmetrically placed on the surface of the rock layer 7 on the side edges of the deposition block 2, fastening mechanisms 5 capable of double fastening and fixing are fixed on the surfaces of the positive blocks 4, and the fastening mechanisms 5 are correspondingly and fixedly connected with the end parts of the balance blocks 3;

in specific work progress, earlier carry out the level with deposition piece 2 and place, form the basis of location installation, with prefabricated post 1 pass deposition piece 2 and alternate the location downwards, make deposition piece 2 outwards inflation form stable card and hold the state through the linkage of prefabricated post 1 with deposition piece 2 at this in-process, it places at deposition piece 2 surface to be perpendicular stack with balancing piece 3 again, it is spacing to realize the stability of prefabricated post 1, increase to prefabricated post 1 axial spacing intensity, it is spacing to the side direction pulling of prefabricated post 1 to greatly improve through positive block 4 and fastening device 5 and being connected of balancing piece 3.

The existing pile foundation is fixed by adopting the insertion with longer degree of freedom to form a fixed foundation, and the stable effect is formed by matching with the landfill of concrete and the like, so that the construction difficulty is higher, particularly the pile foundation is difficult to sink to the design requirement in a shallow region of a covering layer, and the deposition block 2 can form a more stable positioning foundation under the condition of shallow embedment, and the concrete operation is as follows:

as shown in fig. 3, 4, 5 and 6, the deposition block 2 includes a guide wheel 20, a frustum 21, a receiving groove 22, a shaft rod 23, a first winding wheel 24, a clamping rod 25, a first steel wire rope 26, a hanging block 27, a slot 28, a wire groove 29 and a relief groove 210, the slot 28 matched with the structure of the precast column 1 is formed in the center of the frustum 21, the receiving groove 22 is formed in the outer wall of the frustum 21, the shaft rod 23 is rotatably mounted in the receiving groove 22, the clamping rod 25 is symmetrically fixed on the outer wall of the shaft rod 23, the first winding wheel 24 is symmetrically fixed on the surface of the shaft rod 23, the first steel wire rope 26 is wound on the outer wall of the first winding wheel 24, the wire groove 29 is formed in the inner wall of the frustum 21 at a position corresponding to the first winding wheel 24, the wire groove 29 is communicated with the slot 28, the guide wheel 20 is rotatably mounted at one end of the wire groove 29 close to the slot 28, and the first steel wire rope 26 passes through the wire groove 29 and is wound with the guide, the center position of the inner wall of the slot 28 is provided with an abdicating groove 210, and the surface of the prefabricated column 1 is symmetrically fixed with hanging blocks 27 structurally matched with the abdicating groove 210.

The frustum 21 is horizontally placed in an embedded pit on the surface of the rock layer 7 for corresponding landfill, then the hoisting prefabricated column 1 penetrates through the slot 28, the hanging block 27 is clamped into the abdicating groove 210 to move downwards along with the continuous descending of the prefabricated column 1, the hanging block 27 is connected with the first steel wire rope 26 in a hanging mode, the first steel wire rope 26 is pulled to move downwards continuously, the first winding wheel 24 drives the shaft rod 23 to rotate through the stable guiding of the guide wheel 20, the clamping rod 25 is turned outwards, and therefore the clamping rods 25 on the periphery of the frustum 21 and the inner wall of the embedded pit are clamped in an extrusion mode to form expansion type fixing, stable foundation positioning is achieved through a shallow structure, the clamping rods 25 can keep continuous expansion fixing through the dead weight of the prefabricated column 1, and the foundation is stable.

Aiming at the situation that the prefabricated column 1 in a shallow region of a covering layer is difficult to sink, if the prefabricated column 1 is positioned only by the deposition block 2, the stability of the prefabricated column can be greatly deficient, the balance block 3 limits the prefabricated column 1 upwards, the basic freedom degree of the prefabricated column 1 is guaranteed, and the stability of the prefabricated column is improved, and the concrete operation is as follows:

as shown in fig. 7, balancing piece 3 is double-deck stack and places, and is double-deck balancing piece 3 be perpendicular crisscross the placing, balancing piece 3 includes block 31, opening 32, abaculus 33, caulking groove 34, fastening screw 35 and dead slot 36, block 31 is the symmetry setting, terminal surface one side of block 31 is fixed with abaculus 33, and the terminal surface of block 31 is located abaculus 33 symmetric position and has seted up caulking groove 34, and abaculus 33 and caulking groove 34 cooperation are pegged graft, block 31 surface is located caulking groove 34 and has seted up dead slot 36 corresponding the position, fastening screw 35 is installed to the interior interlude of dead slot 36, and fastening screw 35 passes caulking groove 34 and abaculus 33 meshing connection, the central point of the butt joint of block 31 puts and has seted up opening 32, and opening 32 and precast column 1 structure cooperation.

Put the block 31 of first layer at 2 top surfaces of sedimentary mass, the high accuracy butt joint is realized to block through abaculus 33 and caulking groove 34's block, then twist fastening screw 35 and rotate and be connected with abaculus 33, realize inseparable fixed of two blocks 31, and prefabricated post 1 is stabilized the restriction in opening 32, then add the balancing piece 3 of second layer, the butt joint direction of two-layer balancing piece 3 is perpendicular, it is low to avoid the compressive resistance that the side direction stress concentration caused, the installation of double-deck balancing piece 3 has increased prefabricated post 1's basic degree of freedom, effectively improve the installation stability.

Because the balance block 3 mainly depends on dead weight and clamping limiting effect to realize the freedom degree limitation of the prefabricated column 1, the foundation stress does not achieve good effect, the invention adopts the evenly arranged righting block 4 and the fastening mechanism 5 to form even side pulling on the balance block 3, thereby improving the foundation stress stability of the balance block 3, and the concrete operation is as follows:

as shown in fig. 8, the fastening mechanism 5 includes a fluted disc 50, a main shell 51, a second winding wheel 52, a second wire rope 53, a wire hole 54, a guide block 55, an extrusion block 56, a lifting plate 57, a guide post 58 and an adjusting screw 59, the main shell 51 is fixedly connected with the righting block 4, the second winding wheel 52 is rotatably mounted on the bottom surface inside the main shell 51, the second wire rope 53 is wound outside the second winding wheel 52, the wire hole 54 is formed on the surface of the main shell 51, the second wire rope 53 passes through the wire hole 54 and is fixedly connected with the balance block 3, the guide block 55 is fixed on the edge of the wire hole 54 on the inner wall of the main shell 51, the lifting plate 57 is arranged above the second winding wheel 52, the fluted disc 50 is correspondingly fixed on the bottom surface of the lifting plate 57 and the top surface of the second winding wheel 52, the guide post 58 is fixed on the top surface inside the main shell 51, the guide post 58 is slidably connected with the lifting plate 57, the extrusion block 56 is fixed on the bottom, the center of the top surface of the main shell 51 is engaged with an adjusting screw 59.

The positioning block 4 is buried around the deposition block 2 to form uniform stress points, the second steel wire rope 53 is pulled out from the wire hole 54 to be fixedly connected with the balance block 3 at the corresponding position, then the adjusting screw 59 is screwed to drive the lifting plate 57 to descend along the guide post 58, the fluted discs 50 are mutually clamped to form rotation limit for the second winding wheel 52, the extending length of the second steel wire rope 53 is kept, the extrusion block 56 is extruded and clamped into the guide block 55 when the lifting plate 57 descends to form limit press for the second steel wire rope 53, so that the length of the second steel wire rope 53 is ensured to be fixed, the base stress of the balance block 3 is stable due to antagonistic tension formed around the second steel wire rope 53, and the limitation on the degree of freedom of the prefabricated column 1 is ensured.

As shown in fig. 9, an arc-shaped groove is formed in the surface of the guide block 55, two sides of the extrusion block 56 are inclined to match with the arc-shaped groove, rubber layers are compounded on the surface of the arc-shaped groove of the guide block 55 and the surface of the extrusion block 56, and the limit stability of the second steel wire rope 53 is increased by soft extrusion of the extrusion block 56 and the guide block 55.

The clamping rod 25 is in a square strip shape, and the clamping rod 25 is made of alloy steel materials, so that the clamping rod 25 has strong deformation resistance, good corrosion resistance and long service life.

The invention provides an intelligent auxiliary construction method of a precast pile foundation structure, which depends on an intelligent construction terminal to carry out intelligent auxiliary construction, wherein the intelligent construction terminal comprises a high-precision detection system, a big data artificial intelligence decision-making system, a signal transmission processing system and a database, and is characterized by comprising the following steps of:

1) inputting the existing data of the covering layer 6 and the rock layer 7 of the construction area in a database, and inputting the design data of the pile foundation structure of the precast pile;

2) impacting a pre-buried pit on the surface of the rock layer 7 through a crushing machine, and removing a tip from the bottom surface of the pre-buried pit to form a horizontal plane;

3) placing the deposition block 2 in a pre-buried pit through a hoisting machine, and performing impact compaction on the deposition block 2 through compaction equipment;

4) hoisting the prefabricated column 1 through intelligent hoisting equipment, vertically and downwards penetrating through the central position of the deposition block 2 through intelligently controlling the prefabricated column 1, and continuously downwards pressing the prefabricated column 1 to descend for 3 m;

5) expanding the deposition block 2 and clamping the edge of the embedded pit in the descending process of the prefabricated column 1 passing through the deposition block 2, continuously and horizontally compacting through a compacting machine in the collision process of the deposition block 2, and then injecting a first filling body into the embedded pit at the edge position of the deposition block 2;

6) after the filler is solidified, the balance weight 3 is lifted and placed on the top surface of the deposition block 2 through a lifting machine, and is placed in an overlapped and normal position, and is screwed and fixed through an intelligent tool hand;

7) four positioning blocks 4 are embedded around the edge of the deposition block 2 on the surface of the rock layer 7, a second filling body is filled and injected at the edge of the positioning block 4, and the fastening mechanism 5 is integrally fixed on the top surface of the positioning block 4;

8) pulling out the telescopic end of the fastening mechanism 5 and fixing the balance block 3 at the corresponding position;

and 2-8, continuously detecting by a high-precision detection system, inputting detected construction data into a database, comparing and updating the detected construction data with the existing data, sending real-time construction information to a big data artificial intelligence decision-making system by an intelligent construction terminal through a signal transmission processing system, receiving an instruction made by the big data artificial intelligence decision-making system, and repeatedly operating the data comparison and updating and the instruction made by the big data artificial intelligence decision-making system in the whole step 2-8 until the pile foundation structure of the precast pile meets the design data requirement input in the step 1.

The first filling body and the second filling body are both made of waterproof concrete, gaps between the deposition block 2 and the righting block 4 are filled and fixed, and stability of the deposition block and the righting block is guaranteed.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. A precast pile foundation structure, comprising: the device comprises a prefabricated column (1), a covering layer (6) and a rock layer (7), wherein the covering layer (6) covers the top surface of the rock layer (7), and is characterized in that a deposition block (2) capable of being positioned in a linkage expansion mode is embedded in the rock layer (7), the prefabricated column (1) is inserted in the center of the deposition block (2) in a matching mode, a balance block (3) capable of being fixedly fastened in a butt joint mode is sleeved on the top surface of the deposition block (2) and located outside the prefabricated column (1), four positive blocks (4) are symmetrically placed on the surface of the rock layer (7) and located on the side edges of the deposition block (2), a fastening mechanism (5) capable of being fixedly fastened in a double-fastening mode is fixed on the surface of each positive block (4), and the fastening mechanism (5) corresponds to and is fixedly connected with;

the deposition block (2) comprises a guide wheel (20), a frustum (21), a containing groove (22), a shaft rod (23), a first winding wheel (24), clamping rods (25), first steel wire ropes (26), a hanging block (27), inserting grooves (28), wire grooves (29) and a yielding groove (210), the inserting grooves (28) matched with the structure of the prefabricated column (1) are formed in the center position of the frustum (21), the containing grooves (22) are formed in the outer wall of the frustum (21), the shaft rod (23) is rotatably installed in the containing grooves (22), the clamping rods (25) are symmetrically fixed on the outer wall of the shaft rod (23), the first winding wheel (24) is symmetrically fixed on the surface of the shaft rod (23), the first steel wire rope (26) is arranged on the winding outer wall of the first winding wheel (24), the wire grooves (29) are formed in the position, corresponding to the first winding wheel (24), of the inner wall of the frustum (21), and metallic channel (29) and slot (28) intercommunication, the one end rotation that metallic channel (29) are close to slot (28) is installed guide pulley (20), and first wire rope (26) pass metallic channel (29) and guide pulley (20) wire-wound, slot (28) inner wall central point puts and has all seted up groove of stepping down (210), precast column (1) surface symmetry is fixed with and steps down groove (210) structure complex hanger block (27).

2. A precast pile foundation structure according to claim 1, wherein the balance blocks (3) are stacked in two layers, and the balance blocks (3) in two layers are vertically staggered.

3. A precast pile foundation structure according to claim 2, wherein the weight (3) comprises a block body (31), a through hole (32), an insert (33), an insert groove (34), a fastening screw (35) and a void groove (36), the block bodies (31) are symmetrically arranged, one side of the end surface of each block body (31) is fixed with an embedded block (33), and the end surface of the block body (31) is provided with caulking grooves (34) at the symmetrical positions of the caulking blocks (33), the embedded block (33) is matched and inserted with the embedded groove (34), the surface of the block body (31) is provided with an empty groove (36) at the corresponding position of the embedded groove (34), the empty groove (36) is internally provided with a fastening screw (35) in an inserting way, and the fastening screw (35) passes through the caulking groove (34) to be meshed and connected with the insert block (33), the central point of the butt joint face of block (31) puts and has seted up through-hole (32), and through-hole (32) and prefabricated post (1) structure cooperation.

4. A precast pile foundation structure according to claim 1, wherein the fastening mechanism (5) comprises a fluted disc (50), a main shell (51), a second winding wheel (52), a second steel wire rope (53), a wire hole (54), a guide block (55), an extrusion block (56), a lifting plate (57), a guide post (58) and an adjusting screw (59), the main shell (51) is fixedly connected with the normal block (4), the second winding wheel (52) is rotatably installed on the bottom surface inside the main shell (51), the second steel wire rope (53) is wound outside the second winding wheel (52), the wire hole (54) is formed in the surface of the main shell (51), the second steel wire rope (53) penetrates through the wire hole (54) and is fixedly connected with the balance block (3), the guide block (55) is fixed on the edge of the wire hole (54) on the inner wall of the main shell (51), the lifting plate (57) is arranged above the second winding wheel (52), a fluted disc (50) is correspondingly fixed on the bottom surface of the lifting plate (57) and the top surface of the second winding wheel (52), a guide post (58) is fixed on the top surface of the interior of the main shell (51), the guide post (58) is connected with the lifting plate (57) in a sliding and penetrating manner, an extrusion block (56) is fixed on the bottom surface of the lifting plate (57) above the guide block (55), and an adjusting screw (59) is meshed with the center position of the top surface of the main shell (51).

5. A precast pile foundation structure according to claim 4, characterized in that the surface of the guide block (55) is provided with an arc-shaped groove, two sides of the extrusion block (56) are inclined to match with the arc-shaped groove, and rubber layers are compounded on the surface of the arc-shaped groove of the guide block (55) and the surface of the extrusion block (56).

6. A precast pile foundation structure according to claim 1, wherein the clamping rod (25) is in a square bar shape, and the clamping rod (25) is made of alloy steel material.

7. An intelligent auxiliary construction method for a precast pile foundation structure relies on an intelligent construction terminal to carry out intelligent auxiliary construction, wherein the intelligent construction terminal comprises a high-precision detection system, a big data artificial intelligence decision-making system, a signal transmission processing system and a database, and the method is characterized by comprising the following steps of:

1) the existing data of the covering layer (6) and the rock layer (7) of the construction area are input into the database, and the design data of the pile foundation structure of the precast pile are input;

2) impacting a pre-buried pit on the surface of the rock layer (7) through a crushing machine, and removing a tip from the bottom surface of the pre-buried pit to form a horizontal plane;

3) placing the deposition block (2) in a pre-buried pit through a hoisting machine, and performing impact compaction on the deposition block (2) through compaction equipment;

4) hoisting the prefabricated column (1) through intelligent hoisting equipment, vertically and downwards penetrating through the central position of the deposition block (2) through intelligently controlling the prefabricated column (1), and continuously downwards pressing the prefabricated column (1) to descend for 3 m;

5) expanding the deposition block (2) and clamping the edge of the embedded pit in the descending process of the prefabricated column (1) passing through the deposition block (2), continuously and horizontally tamping the deposition block (2) through a tamping machine in the collision process of the deposition block, and then injecting a first filling body into the embedded pit at the edge position of the deposition block (2);

6) after the filler is solidified, the balance block (3) is lifted and placed on the top surface of the deposition block (2) through a lifting machine, and is placed in an overlapped and righting manner, and is twisted and fixed through an intelligent tool hand;

7) four positioning blocks (4) are buried around the edge of the deposition block (2) on the surface of the rock layer (7), a second filling body is filled and injected at the edge of the positioning block (4), and the fastening mechanism (5) is integrally fixed on the top surface of the positioning block (4);

8) pulling out the telescopic end of the fastening mechanism (5) to be fixed with the balance block (3) at the corresponding position;

and 2-8, continuously detecting by a high-precision detection system, inputting detected construction data into a database, comparing and updating the detected construction data with the existing data, sending real-time construction information to a big data artificial intelligence decision-making system by an intelligent construction terminal through a signal transmission processing system, receiving an instruction made by the big data artificial intelligence decision-making system, and repeatedly operating the data comparison and updating and the instruction made by the big data artificial intelligence decision-making system in the whole step 2-8 until the pile foundation structure of the precast pile meets the design data requirement input in the step 1.

8. An intelligent auxiliary construction method for a precast pile foundation structure according to claim 7, wherein the first filling body and the second filling body are both made of waterproof concrete.

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