阅读说明：本技术 一种基桩及其施工方法 (Foundation pile and construction method thereof ) 是由 吴芳燕 金伟丰 邱立 李建康 李彩英 项靓 项福斌 于 2020-06-05 设计创作，主要内容包括：本发明公开了一种基桩及其施工方法,建筑技术,用于解决普通基桩稳定性不足的问题,基桩包括桩基承台、桩柱,所述桩柱的贯入端设置有稳基机构,所述稳基机构包括稳基支脚、支脚展开组件,所述桩柱的贯入端上开设有折脚槽,所述稳基支脚铰接于桩柱的贯入端上且位于折脚槽内,所述支脚展开组件设置于折脚槽内且驱使稳基支脚做上下翻折运动；本发明具有以下优点和效果：稳基支脚展开后能够增大桩柱底部的支撑面积,使桩柱不容易产生倾斜,进而提高地基的稳定性,以减少建筑物的倾斜。(The invention discloses a foundation pile and a construction method thereof, and relates to a building technology, which is used for solving the problem of insufficient stability of a common foundation pile.A foundation pile comprises a pile foundation bearing platform and a pile column, wherein a foundation stabilizing mechanism is arranged at the injection end of the pile column, the foundation stabilizing mechanism comprises foundation stabilizing support legs and support leg unfolding assemblies, the injection end of the pile column is provided with a leg folding groove, the foundation stabilizing support legs are hinged to the injection end of the pile column and positioned in the leg folding groove, and the support leg unfolding assemblies are arranged in the leg folding groove and drive the foundation stabilizing support legs to do vertical folding movement; the invention has the following advantages and effects: after the stable base supporting legs are unfolded, the supporting area of the bottom of the pile column can be increased, the pile column is not prone to tilting, and therefore the stability of the foundation is improved, and the inclination of a building is reduced.)

1. The utility model provides a foundation pile, includes pile foundation cushion cap (1), stake (2), its characterized in that: the penetration end of stake (2) is provided with steady basic mechanism (3), steady basic mechanism (3) expand subassembly (32) including steady basic stabilizer blade (31), stabilizer blade, the penetration of stake (2) is served and has been seted up a foot groove (21), steady basic stabilizer blade (31) articulate and serve and be located foot groove (21) in the penetration of stake (2), stabilizer blade expansion subassembly (32) set up in foot groove (21) and order about steady basic stabilizer blade (31) and turn over the motion from top to bottom.

2. A foundation pile according to claim 1, characterised in that: the supporting leg unfolding component (32) comprises a supporting rod (321) hinged to the pile column (2) and an expansion rod (322) telescopically arranged in the supporting rod (321), one end, far away from the supporting rod (321), of the expansion rod (322) is hinged to the supporting leg (31) through a rotating sleeve (34), and a telescopic positioning component (4) is arranged in the supporting rod (321).

3. A foundation pile according to claim 2, wherein: threaded holes are formed in the supporting rod (321), threads are arranged on the telescopic rod (322), and the telescopic rod (322) is installed in the supporting rod (321) in a threaded matching mode.

4. A foundation pile according to claim 3, wherein: the telescopic positioning assembly (4) comprises a rotating part (41) arranged in a supporting rod (321) and an adjusting rod (42) fixed on an output shaft of the rotating part (41), the cross section of the adjusting rod (42) is polygonal, a matching hole (33) with the cross section matched with the adjusting rod (42) is formed in the telescopic rod (322), and the adjusting rod (42) slides and penetrates through the matching hole (33).

5. A foundation pile according to claim 1, characterised in that: be provided with on steady base stabilizer blade (31) and be used for blockking that pile (2) produce horizontal skew ends inclined to one side mechanism (5), end inclined to one side mechanism (5) including ending inclined to one side piece (51), storage tank (311) have been seted up on the free end of steady base stabilizer blade (31), end inclined to one side piece (51) articulate in storage tank (311) through articulated piece, and be provided with in storage tank (311) and be used for the fixed trigger subassembly (52) that ends inclined to one side piece (51) the state of folding up, be used for driving about to end inclined to one side piece (51) and produce ejection subassembly (53) of upset and be used for the fixed locking subassembly (54) that ends inclined to one side piece (51) upset state.

6. A foundation pile according to claim 5, wherein: the trigger assembly (52) comprises a trigger elastic piece (521) and a positioning block (522), an embedded groove (511) is formed in the surface of one side, facing the bottom of the accommodating groove (311), of the deviation stopping block (51), the trigger elastic piece (521) is placed in the embedded groove (511), the positioning block (522) is telescopically placed in the embedded groove (511) and extrudes the trigger elastic piece, a trigger hole (312) aligned with the embedded groove (511) is formed in the bottom of the accommodating groove (311), and the end portion of the positioning block (522) is embedded into the trigger hole (312) under the driving of the trigger elastic piece (521).

7. A foundation pile according to claim 5, wherein: the ejection assembly (53) comprises an ejection piece (531) and a trigger rod (532), an ejection groove (314) which is concentric with the trigger hole (312) is formed in the bottom of the accommodating groove (311), the ejection piece (531) is retracted into the ejection groove (314) under the extrusion of the deviation stopping block (51), the trigger rod (532) penetrates through the trigger hole (312), one end of the trigger rod (532) is abutted to the positioning block (522), the other end of the trigger rod (532) penetrates through the trigger hole (312), and a stopping block (533) which limits the trigger rod (532) to fall from the trigger hole (312) is arranged on the trigger rod (532).

8. A foundation pile according to claim 5, wherein: locking subassembly (54) including being fixed in locking piece (541) on the hinged end of locking piece (51), set up on steady base stabilizer blade (31) and be used for locking piece (541) and steady base stabilizer blade (31) fixed locking piece (542), storage tank (311) end-opening is equipped with and supplies locking piece (541) male upset socket (6) and end position mouth (8) with upset socket (6) cross intercommunication, be provided with end position piece (9) in end position mouth (8), set up simultaneously with upset socket (6) and end position mouth (8) the locking piece groove (313) that communicate on the lateral wall of steady base stabilizer blade (31), locking piece (542) are located locking piece groove (313) and support under driving about thrust subassembly (7) and end position piece (9), set up on locking piece (541) and are used for locking piece (542) embedding locking groove (543).

9. A foundation pile according to claim 8, wherein: the thrust assembly (7) comprises an elastic thrust piece (71) embedded in a lock block groove (313) and a thrust sheet (72) installed in the lock block groove (313) in a threaded mode, two ends of the elastic thrust piece (71) are respectively abutted to a lock block (542) and the thrust sheet (72), and the elastic thrust piece (71) is in a compression state all the time.

10. A foundation pile construction method applied to the foundation pile according to any one of claims 1 to 9, characterized by comprising the steps of:

a. penetrating the pile (2) into the soil layer until the pile touches the hard soil layer or the rock layer;

b. starting the supporting foot unfolding assembly (32), unfolding the foundation stabilizing supporting foot (31), and when the end of the foundation stabilizing supporting foot (31) touches a hard soil layer or a rock layer and the extrusion force on the trigger rod (532) reaches a preset value, pushing the positioning piece open by the trigger rod (532), so that the deviation stopping block (51) is upwards bounced to be erected and locked by the locking assembly (54);

c. the pile foundation pile cap is characterized in that the adjusting pile column (2) is located at one end of the ground, the pile foundation pile cap (1) and the pile column (2) are assembled into a whole, the pile foundation pile cap (1) is embedded by using landfill soil, and the pile foundation pile cap (1) is tamped to the two-thirds high position of the pile foundation pile cap (1).

Technical Field

The invention relates to a construction technology, in particular to a foundation pile and a construction method thereof.

Background

The pile foundation is a deep foundation which is formed by connecting the tops of a plurality of piles into a whole through a supporting platform so as to bear static load together, and the deep foundation is mainly in the form of a vertical or inclined foundation component arranged in a soil layer and has the function of penetrating through a soft high-compressibility soil layer or water and transmitting the load borne by the piles to a harder, denser or less compressible foundation bearing layer.

At present, the invention with the grant publication number CN208072437U discloses a pile foundation structure and a support pile foundation, wherein the pile foundation structure comprises a pile foundation cap, a steel pile and a reinforced concrete column, the pile foundation cap is connected with the steel pile, the reinforced concrete column is arranged at the periphery of the steel pile, the reinforced concrete column is provided with a fixing piece, and the steel pile penetrates through the fixing piece to be connected with the concrete pile.

A conventional pile structure, as described in the above-mentioned prior art, generally consists of a pile cap on which a building is pressed and a foundation pile whose bottom is used to penetrate into a soil layer, and transfers gravity to a hard soil or rock layer by means of the foundation pile. Because the foundation pile is long column, and in order to increase the penetrating power of pile foundation in the practical application process, the tip of foundation pile designs for sharp toper usually, and long column structure is anti-tilt performance poor itself, consequently when pile foundation cushion cap atress is uneven, probably leads to the foundation pile to produce the slope, and then leads to ground poor stability.

Disclosure of Invention

A first object of the present invention is to provide a foundation pile capable of supporting the bottom of the foundation pile, preventing the foundation pile from being inclined, and improving the stability of the foundation.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a foundation pile, includes pile foundation cushion cap, stake, the injection end of stake is provided with steady basic mechanism, steady basic mechanism is including steady basic stabilizer blade, stabilizer blade expansion subassembly, the foot groove has been seted up on the injection end of stake, steady basic stabilizer blade hinges and is located the foot inslot in the injection end of stake, stabilizer blade expansion subassembly sets up in the foot inslot and orders about steady basic stabilizer blade and turn over the motion from top to bottom.

Through adopting above-mentioned scheme, when the stake touched hard soil layer or rock layer, the stabilizer blade expandes the subassembly and orders about steady base stabilizer blade and turns over downwards to support on hard soil layer or rock layer, steady base stabilizer blade can increase the support area of stake, makes it be difficult to produce the slope, thereby reaches the purpose that improves foundation stability.

The invention is further provided with: the supporting leg unfolding assembly comprises a supporting rod hinged to the pile column and a telescopic rod arranged in the supporting rod in a telescopic mode, one end, far away from the supporting rod, of the telescopic rod is hinged to the stable base supporting leg through a rotating sleeve, and a telescopic positioning assembly is arranged in the supporting rod.

Through adopting above-mentioned scheme, when the telescopic link stretches out outward towards the bracing piece, can promote steady base stabilizer blade and overturn downwards, and flexible locating component orders about the telescopic link on the one hand and is concertina movement, and on the other hand can fix a position the telescopic link, makes the length after bracing piece and the telescopic link combination keep not table, and then supports steady base stabilizer blade.

The invention is further provided with: the support rod is provided with a threaded hole, the telescopic rod is provided with threads, and the telescopic rod is installed in the support rod in a thread fit mode.

Through adopting above-mentioned scheme, threaded connection structure possesses best laborsaving effect under the condition that possesses self-locking function, for example the jack can pry huge object with minimum volume, is exactly with the help of the laborsaving effect of helicitic texture, and under the condition of no exogenic action simultaneously, helicitic texture possesses the auto-lock nature, consequently can provide stable support to the steady base stabilizer blade.

The invention is further provided with: the telescopic positioning assembly comprises a rotating part arranged in the supporting rod and an adjusting rod fixed on an output shaft of the rotating part, the cross section of the adjusting rod is polygonal, a matching hole matched with the cross section of the adjusting rod is formed in the telescopic rod, and the adjusting rod slides to penetrate through the matching hole.

Through adopting above-mentioned scheme, because the cross-section of adjusting the pole and the mating holes is the polygon, consequently when adjusting the rotatory in-process of pole, can drive the telescopic link and rotate together, and then make the telescopic link can produce concertina movement in the bracing piece to reach and order about the purpose of steady base stabilizer blade upset.

The invention is further provided with: the pile foundation stabilizing device is characterized in that an inclined-deviation stopping mechanism used for stopping a pile to generate transverse deviation is arranged on the stable foundation support leg, the inclined-deviation stopping mechanism comprises an inclined-deviation stopping block, a containing groove is formed in the free end of the stable foundation support leg, the inclined-deviation stopping block is hinged in the containing groove through a hinge block, a trigger assembly used for fixing the inclined-deviation stopping block in a folding state, an ejection assembly used for driving the inclined-deviation stopping block to generate overturning and a locking assembly used for fixing the inclined-deviation stopping block in an overturning state are arranged in the containing groove.

By adopting the scheme, after the deviation stopping block is erected, the transverse stress area of the stable foundation support leg can be increased, so that when the pile is subjected to transverse force, the force can be transmitted to the soil layer more, and further the transverse deviation of the pile is reduced, and the foundation has better stability.

The invention is further provided with: the trigger assembly comprises a trigger elastic piece and a positioning block, an embedded groove is formed in the surface of one side, facing the bottom of the containing groove, of the deviation stopping block, the trigger elastic piece is placed in the embedded groove, the positioning block is telescopically arranged in the embedded groove and extrudes the trigger elastic piece, a trigger hole aligned with the embedded groove is formed in the bottom of the containing groove, and the end portion of the positioning block is embedded into the trigger hole under the driving of the trigger elastic piece.

When the stable base supporting leg is not unfolded, the state that the deviation stopping block is folded in the containing groove needs to be kept, so that the resistance borne by the stable base supporting leg in the folding process is reduced.

The invention is further provided with: the ejection assembly comprises an ejection piece and a trigger rod, an ejection groove concentric with the trigger hole is formed in the bottom of the containing groove, the ejection piece is contracted in the ejection groove under the extrusion of the deviation stopping block, the trigger rod penetrates through the trigger hole, one end of the trigger rod is abutted to the other end of the positioning block and penetrates through the trigger hole, and a stop block for limiting the trigger rod to fall off from the trigger hole is arranged on the trigger rod.

Through adopting above-mentioned scheme, turn over downwards when steady base stabilizer blade and make the trigger bar conflict to hardpan or rock layer to when reaching the trigger force default, the trigger bar pushes up the locating piece in the caulking groove, and ejection piece orders about at this moment and ends inclined to one side the piece and overturn downwards and upwards bounce in the passageway that produces in the soil layer via steady base stabilizer blade, and by the locking state of erectting of locking subassembly locking, thereby make to end inclined to one side the piece and can play and prevent inclined to one side the position effect.

The invention is further provided with: the locking subassembly is including being fixed in the locking piece on the hinged end of only inclined to one side piece, set up on steady basic stabilizer blade and be used for locking piece and the fixed locking piece of steady basic stabilizer blade, open at the bottom of the storage tank and be equipped with the end mouth that supplies locking piece male upset socket and communicate with upset socket is alternately, be provided with the end piece in the end mouth, set up the locking piece groove of simultaneously with upset socket and end mouth intercommunication on the lateral wall of steady basic stabilizer blade, the locking piece is located the locking piece inslot and supports tight end piece under thrust assembly's the driving about, set up the locking groove that is used for supplying the embedding of locking piece on the locking piece.

Through adopting above-mentioned scheme, when ending the inclined to one side piece and turning over the book, can drive the locking piece embedding upset socket, and then will end position piece and locking piece and push away from the contact, the locking piece moves towards the locking piece under thrust unit's effect this moment to inconsistent with the locking piece, the locking groove on the locking piece is aligned with the locking piece, then locking piece embedding locking groove, and then ends the inclined to one side piece through the locking piece fixing.

The invention is further provided with: the thrust assembly comprises an elastic thrust piece embedded in a lock block groove and a thrust sheet installed in the lock block groove in a threaded manner, two ends of the elastic thrust piece are respectively abutted against the lock block and the thrust sheet, and the elastic thrust piece is always in a compression state.

Through adopting above-mentioned scheme, because elasticity thrust piece is in compression state all the time, consequently have the elastic potential energy that promotes the motion of locking piece all the time on the elasticity thrust piece to make the locking piece can be automatic embedding after aiming at the locking groove.

A second object of the present invention is to provide a foundation pile construction method capable of supporting the bottom of a foundation pile to prevent the foundation pile from being inclined, thereby improving the stability of the foundation.

The technical purpose of the invention is realized by the following technical scheme: a pile foundation construction method applied to the foundation pile of any one of claims 1 to 9, comprising the steps of:

a. penetrating the pile into the soil layer until the pile touches the hard soil layer or the rock layer;

b. starting the support leg unfolding assembly, unfolding the foundation stabilizing support legs, and when the end parts of the foundation stabilizing support legs touch a hard soil layer or a rock layer and the extrusion force on the trigger rods reaches a preset value, pushing the positioning piece open by the trigger rods, so that the deviation stopping blocks are upwards bounced to be erected and locked by the locking assembly;

c. the adjustment pile is located subaerial one end, and pile foundation cushion cap and pile assembly are integrative to the landfill soil is pre-buried pile foundation cushion cap, and tamps to pile foundation cushion cap two-thirds eminence.

Through adopting above-mentioned scheme, the steady basic stabilizer blade on the pile can increase the support area of pile, makes it be difficult to produce the slope, and the horizontal skew of pile can be restricted to the piece that ends on the steady basic stabilizer blade simultaneously, and can carry on spacingly to the upper portion of pile after the pile foundation cushion cap that splices mutually with the pile tamps through the landfill soil for the pile is difficult to more produces the slope, and then in order to improve the overall stability of ground.

In conclusion, the invention has the following beneficial effects:

1. after the foundation stabilizing support legs are unfolded, the supporting area of the bottom of the pile can be increased, so that the pile is not easy to incline, the stability of the foundation is further improved, and the inclination of a building is reduced;

2. the anti-deviation block can increase the horizontal stress area of the stable foundation support leg, so that the force can be better unloaded through a soil layer when the stable foundation support leg is stressed by a transverse force, and the displacement resistance of the foundation is further improved;

3. the ejection type deviation stopping block can be automatically unfolded after bottoming, so that the deviation stopping block can be automatically started without an additional mechanism, and construction of a pile foundation is facilitated.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the connection structure of the footing and the anti-deviation block of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

fig. 5 is a partial enlarged view at C in fig. 3.

In the figure: 1. pile foundation bearing platforms; 2. pile columns; 21. a leg folding groove; 3. a base stabilizing mechanism; 31. a stable base support leg; 311. a containing groove; 312. a trigger hole; 313. a lock block slot; 314. an ejection slot; 32. a leg deployment assembly; 321. a support bar; 322. a telescopic rod; 33. a mating hole; 34. rotating the sleeve; 4. a telescopic positioning component; 41. a rotating member; 42. adjusting a rod; 5. a deviation stopping mechanism; 51. a deviation stopping block; 511. caulking grooves; 512. installing into the hole; 52. a trigger component; 521. triggering the elastic piece; 522. positioning blocks; 523. a clamping block; 53. an ejection assembly; 531. an ejection member; 532. a trigger lever; 533. a stop block; 54. a locking assembly; 541. a locking piece; 542. a locking block; 543. a locking groove; 6. turning over the socket; 7. a thrust assembly; 71. an elastic thrust member; 72. a thrust piece; 8. a stop port; 9. a stop sheet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.