CN112177028A

CN112177028A - Building pile foundation and construction process thereof

Info

Publication number: CN112177028A
Application number: CN202011116838.9A
Authority: CN
Inventors: 姚子健; 陈佳鑫; 唐海菁
Original assignee: Dongguan Guangqu Construction Engineering Co ltd
Current assignee: Dongguan Guangqu Construction Engineering Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-01-05

Abstract

The utility model relates to a building pile basis and construction process thereof, it includes a plurality of pile foundations of inserting locating pile week soil and sets up in the cushion cap at a plurality of pile foundation tops, the pile foundation includes the foundation pile and is located the foundation pile on, a plurality of storage tanks have been seted up to the foundation pile top surface, be provided with the back-off piece in the storage tank, the foundation pile includes the connecting seat and sets up in the socket of connecting seat towards the foundation pile one side, the socket is used for the drive back-off piece to stretch out the storage tank and insert a week soil, the foundation pile is fixed mutually through consolidating the subassembly with the foundation pile, the pile foundation is provided with and holds the subassembly tightly, the subassembly of holding tightly of two. This application utilizes the back-off of pile foundation to insert inside the soil of pile week, strengthens the joint strength of the all picture of pile and pile foundation, wholly improves the bearing capacity of pile foundation.

Description

Building pile foundation and construction process thereof

Technical Field

The invention relates to the field of civil construction, in particular to a building pile foundation and a construction process thereof.

Background

The buildings are built on the ground, so that the ground needs to bear great pressure, and in order to ensure the stability of the building factory, a stratum pile foundation form is often adopted, the foundation form is widely applied in weak soil areas, and a bearing platform is usually supported by a plurality of pile foundations extending into the soil layer together to form a supporting unit of the building.

At present building pile in the work progress, the mode of the pile that generally adopts will prefabricate inside the foundation is directly squeezed into to the pile foundation utilization hammering device, because the pile foundation is same footpath from top to bottom basically, and the pile foundation bottom is the taper setting, makes the area of pile foundation bottom to ground pressure conduction less, leads to the bearing capacity of pile foundation not enough, and the stability of building is relatively poor, has the potential safety hazard.

Disclosure of Invention

In order to improve the phenomenon that the bearing capacity of the current pile foundation is insufficient, the application provides a building pile foundation and a construction process thereof.

The utility model provides a building pile foundation adopts following technical scheme:

the utility model provides a building pile foundation, includes a plurality of pile foundations of inserting locating pile week soil and sets up in the cushion cap at a plurality of pile foundation tops, the pile foundation includes the foundation pile and is located the pile-up on the foundation pile, a plurality of storage tanks have been seted up to the foundation pile top surface, be provided with the fastener in the storage tank, the pile-up includes the connecting seat and sets up in the socket of connecting seat towards the foundation pile one side, the socket is used for the drive fastener-down to stretch out the storage tank and insert a week soil, the pile-up is fixed mutually through consolidating the subassembly with the foundation pile, the pile foundation is provided with and holds the subassembly tightly, and two adjacent pile foundations hold the subassembly tightly and be.

Through adopting above-mentioned technical scheme, during the construction, hammer into the pile week soil with the foundation pile inside, then utilize the socket hammer of pile jack to go into inside the storage tank to the drive back-off spare stretches out the foundation pile, and inside inserting pile week soil, strengthen the pile foundation and be connected with pile week soil, utilize to consolidate the subassembly with foundation pile and pile jack reciprocal anchorage, be connected through holding tightly subassembly and chain component between the adjacent pile foundation, wholly improve the bearing capacity of pile foundation, improve the anti-wind shock resistance of building.

Preferably, the back-off piece includes that the one end is rotated the arc of being connected of leading strake and one end and leading strake of being connected with the lateral wall of storage tank and is kept away from the storage tank lateral wall and detain, the diameter that the strake was detained with the arc coincides mutually, the centre of a circle position that the arc was detained coincides mutually with the rotation tie point of leading strake at the storage tank lateral wall, the perforation that is linked together with the storage tank is seted up to the foundation pile lateral wall, the perforation is extended the route and is detained with the arc and extend the circumference limit and coincide mutually, the perforation is used for supplying the arc to detain and stretches out.

Through adopting above-mentioned technical scheme, when going into the accommodation hole with the socket hammer, the socket provides the effort to the edge strip, makes the arc detain the warp perforation and stretches out the foundation pile, inserts the native inside all around simultaneously, and the arc is detained and can be strengthened pile foundation and the native being connected all around to improve the bearing capacity of pile foundation.

Preferably, the lateral wall of storage tank is seted up and is carried out the groove of dodging of accomodating the edge strip, the edge strip is connected through the pivot with the lateral wall rotation of dodging the groove, the pivot is provided with the drive arc and detains the torsional spring of accomodating at the storage tank.

Through adopting above-mentioned technical scheme, when the foundation pile hammer income stake week soil is inside, in order to avoid the arc to detain to stretch out the perforation and hinder the foundation pile to get into stake week soil, it is rotatory to utilize the torsional spring to drive the edge guide strip to detain the arc and accomodate inside the storage tank.

Preferably, a built-in cavity communicated with the containing groove is formed in the bottom of the bottom pile, a pointed cone portion is arranged at one end, away from the connecting seat, of the socket, a taper hole communicated with the built-in groove is formed in the bottom pile, the taper hole is used for enabling the pointed cone portion to extend out of the bottom pile and to be inserted into soil around the pile, and the built-in cavity is provided with a blocking assembly for blocking the taper hole.

Through adopting above-mentioned technical scheme, inside the socket hammer income storage tank with the stake, the tip cone stretches out the foundation pile through the taper hole, and inserts inside the soil around the stake, strengthens the area of contact of soil around the stake and pile foundation, improves the bearing stability of pile foundation.

Preferably, block the subassembly including rotate set up in the swivel mount of built-in chamber and a plurality of rings set up in the commentaries on classics piece of swivel mount lateral wall, the commentaries on classics piece is used for blockking the taper hole, the foundation pile rotates and is provided with the rotary column, rotary column and swivel mount fixed connection, the foundation pile top is stretched out to the one end of rotary column.

By adopting the technical scheme, when the bottom pile is hammered into the soil around the pile, the accommodating groove is blocked because soil easily enters the bottom pile from the taper hole, and the taper hole can be blocked by the rotating block; after the bottom pile is hammered into the soil around the pile, the rotating column is rotated to drive the rotating block to rotate, and the rotating block is separated from the position of the taper hole, so that the socket is inserted into the taper hole from the position between the two rotating blocks.

Preferably, the reinforcing component is a compression nut, the top pile is provided with a communicating hole for the rotating column to penetrate through, and one end, extending out of the communicating hole, of the rotating column is in threaded connection with the compression nut.

Through adopting above-mentioned technical scheme, with the inside back of all hammering into stake week soil with foundation pile and top pile, the rotary column passes the intercommunicating pore and stretches out the top surface of top pile, utilizes gland nut locking, with top pile and foundation pile reciprocal anchorage.

Preferably, hold the subassembly of holding tightly and include locking bolt, lock nut and two arc hoops, two the outside of pile foundation is located to the mutual splice cover of arc hoops, the tip of arc hoops radially extends has the link, locking bolt wears to locate the link that two arc hoops are close to each other, locking bolt stretches out the tip and the lock nut threaded connection of link.

Through adopting above-mentioned technical scheme, locate the outside of pile foundation with two arc hoop covers, utilize locking bolt and lock nut to fix the link of two arc hoops each other afterwards to make the arc hoop hold tightly in the pile foundation outside, the arc hoop of two adjacent pile foundations is connected through the chain component.

Preferably, the chain subassembly includes chain, connecting bolt and U-shaped billet, connecting bolt wears to locate the link that two arc hoops are close to each other, connecting bolt's both ends are worn to locate the both ends of U-shaped billet respectively, the equal threaded connection in both ends that connecting bolt stretches out the U-shaped billet has coupling nut, the U-shaped billet fixed connection that the both ends of chain are close to each other with two adjacent pile foundations respectively.

Through adopting above-mentioned technical scheme, utilize connecting bolt and coupling nut simultaneously with the link fixed connection that two arc hoops are close to each other with the U-shaped steel strip, then utilize the chain with the U-shaped steel strip fixed connection of two adjacent pile foundations, make interconnect between a plurality of pile foundations, improve the bearing capacity of pile foundation, the anti-wind antidetonation effect of building improves.

The second purpose of the application provides a construction process of building pile foundation adopts following technical scheme:

a construction process of a building pile foundation comprises the following steps:

the method comprises the following steps: preparing a site before construction, excavating a foundation pit, wherein the excavation depth of the foundation pit is 0.5-1 m, supporting the foundation pit, and measuring and calculating the position of a marked pile foundation;

step two: the bottom pile is hammered into the soil around the pile in advance at the bottom of the foundation pit, the top of the bottom pile is ensured to be positioned above the bottom surface of the foundation pit, then the socket of the top pile is hammered into the bottom pile, the arc-shaped buckle is inserted into the soil around the pile, and the top pile and the bottom pile are fixed;

step three: sleeving two arc hoops on the outer sides of pile foundations, fixing the two arc hoops, and connecting the arc hoops of two adjacent pile foundations through chains;

step four: and backfilling soil around the pile of the foundation pit, and installing bearing platforms at the tops of the plurality of top piles to complete construction of the building pile foundation.

Through adopting above-mentioned technical scheme, the foundation ditch excavation degree of depth only need control at 0.5m-1m within range, hammer into the pile with the foundation pile all around soil inside, hammer into the socket of foundation pile the holding downthehole portion of foundation pile afterwards, the arc is buckled and is stretched out the foundation pile and insert the pile all around soil inside this moment to strengthen the joint strength of pile foundation and pile all around soil, utilize arc hoop and chain to connect two adjacent pile foundations at last, can wholly improve the bearing capacity of pile foundation, improve the anti-wind shock resistance of building.

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

1. during construction, a bottom pile is hammered into the soil around the pile, then a socket of a top pile is hammered into the accommodating groove, so that the driving back-off piece extends out of the bottom pile and is inserted into the soil around the pile to strengthen the connection between the pile foundation and the soil around the pile, the bottom pile and the top pile are mutually fixed by the reinforcing assembly, and adjacent pile foundations are connected by the holding assembly and the chain assembly, so that the bearing capacity of the pile foundation is integrally improved, and the wind and earthquake resistance of a building is improved;

2. the socket of the top pile is hammered into the containing groove, the pointed cone part extends out of the bottom pile through the taper hole and is inserted into the soil around the pile, the contact area between the soil around the pile and the pile foundation is increased, and the bearing stability of the pile foundation is improved;

3. the outside of pile foundation is located with two arc hoop covers, utilizes locking bolt and lock nut to fix the link of two arc hoops each other afterwards to make the arc hoop hold tightly in the pile foundation outside, the arc hoop of two adjacent pile foundations is connected through the chain.

Drawings

Fig. 1 is a schematic view of the overall structure of a foundation for a construction pile and a construction process thereof according to the embodiment;

FIG. 2 is a schematic view of a vertical structure of a foundation for a construction pile and a construction process thereof according to the present embodiment;

fig. 3 is a cross-sectional view of the pile foundation in the present embodiment.

Description of reference numerals: 1. a pile foundation; 11. bottom piles; 111. a containing groove; 112. a cavity is arranged inside; 113. a taper hole; 114. an avoidance groove; 115. perforating; 12. pile jacking; 121. a connecting seat; 1211. a communicating hole; 122. a socket; 1221. a tapered section; 2. turning the column; 21. rotating; 211. rotating the block; 22. a compression nut; 3. a guide strip; 31. an arc-shaped buckle; 311. a conical tip; 32. a rotating shaft; 4. an arc-shaped hoop; 41. a connecting end; 411. locking the bolt; 5. a chain; 51. a U-shaped steel bar; 52. a connecting bolt; 6. a bearing platform.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The utility model provides a building pile basis, refers to fig. 1 and 2, including vertical a plurality of pile foundations 1 and the cushion cap 6 of locating the inside soil around the stake, cushion cap 6 is fixed in the one end that a plurality of pile foundations 1 stretch out ground. Pile foundation 1 includes foundation pile 11 and the pile-up 12 that is located 11 tops of foundation pile, and the inside of foundation pile 11 is provided with back-off piece, and pile-up 12 is used for driving back-off piece and stretches out foundation pile 11 and insert a soil, and foundation pile 11 and pile-up 12 are fixed mutually through consolidating the subassembly, are provided with on pile foundation 1 and hold the subassembly tightly, and two adjacent pile foundation 1 hold the subassembly tightly and pass through the chain component fixed mutually, strengthen the bearing capacity of pile foundation 1.

The foundation pile 11 is the cylinder setting, and the one end that foundation pile 11 inserted the inside of stake week soil is the circular cone head setting, and a plurality of storage tank 111 have been seted up to the top surface of foundation pile 11, and a plurality of storage tank 111 use the central axis of pile foundation 1 to set up as centre of a circle hoop. The back-off piece is installed in inner wall one side that storage tank 111 is close to pile foundation 1 outer wall, and the back-off piece is detained 31 including leading strake 3 and arc, and the one end of leading strake 3 is rotated and is installed in the inside wall of storage tank 111, and the one end fixed connection that 31 was detained to the other end and the arc of leading strake 3, the central axis of rotation of leading strake 3 and the central axis mutually perpendicular of pile foundation 1. Arc is detained 31 and is the circular arc setting, and the centre of a circle radian of arc is not more than 90 degrees, and arc is detained 31 and is located the tangent line that is connected the position with leading edge strip 3 and is perpendicular to leading edge strip 3 mutually, and the centre of a circle position of arc detaining 31 coincides with the position that leading edge strip 3 and storage tank 111 are connected.

The lateral wall of foundation pile 11 has been seted up a plurality of perforation 115 that are linked together with different storage tanks 111, it is inside that perforation 115 is located soil around the stake, perforation 115's the extension route and arc buckle 31's circumference extension route coincide each other, perforation 115 stretches out foundation pile 11 with the one end that supplies arc buckle 31 to keep away from edge guide strip 3, arc buckle 31 keeps away from edge guide strip 3's one end and is fixed with circular cone tip 311, it is inside soil around the stake to be convenient for arc buckle 31 inserts, can strengthen pile foundation 1 and the soil around the stake is connected.

The side wall that leads strake 3 through pivot 32 and storage tank 111 rotates to be connected, installs the torsional spring on the pivot 32, and the torsional spring is used for driving and leads strake 3 upset upwards to reset to make the arc detain 31 and accomodate in the inside of storage tank 111, the circular cone prong 311 is located perforation 115 inside this moment, is convenient for hammer into the soil around the stake with end pile 11 when the construction begins inside.

The top pile 12 includes a connection seat 121 having the same outer diameter as the bottom pile 11 and a plurality of sockets 122 corresponding to the receiving grooves 111, the connection seat 121 abuts on the top of the bottom pile 11, the central axes of the connection seat 121 and the bottom pile 11 coincide with each other, the plurality of sockets 122 are all fixed on one surface of the connection seat 121 facing the bottom pile 11, and the cross-sectional profile of the sockets 122 is consistent with the corresponding receiving grooves 111. An avoiding groove 114 for accommodating the edge guide strip 3 is formed in the side wall of the accommodating groove 111, and the avoiding groove 114 is communicated with the through hole 115. When the socket 122 is inserted into the receiving groove 111 in a matching manner, the socket 122 applies an acting force to the edge guide strip 3 to make the arc-shaped buckle 31 extend out of the bottom pile 11 through the through hole 115, and the socket 122 presses the edge guide strip 3 into the avoiding groove 114 to make the arc-shaped buckle 31 form an upward buckling structure outside the pile foundation 1, so that the connection between the pile foundation 1 and the soil around the pile can be enhanced.

Referring to fig. 2 and 3, a built-in cavity 112 is formed in the bottom pile 11 and below the receiving groove 111, the built-in cavity 112 is communicated with the receiving grooves 111, and one end of the socket 122 away from the connecting seat 121 extends into the built-in cavity 112. One end of the socket 122 far away from the connecting seat 121 is fixed with a pointed conical part 1221, the conical surface of the bottom pile 11 located at the outer side of the bottom is provided with a conical hole 113 communicated with the built-in cavity 112, the pointed conical part 1221 penetrates through the conical hole 113 and extends out of the bottom pile 11, and the pointed conical part 1221 is inserted into the soil around the pile to enhance the bearing capacity of the pile foundation 1.

During construction, the bottom pile 11 is hammered into the soil around the pile in advance, then the socket 122 of the top pile 12 is hammered into the bottom pile 11, in order to avoid soil from entering the bottom pile 11 from the taper hole 113 to cause blockage, the internally mounted of the built-in cavity 112 is provided with a blocking assembly, the blocking assembly comprises a rotary seat 21 and a plurality of rotary blocks 211, the plurality of rotary blocks 211 are annularly fixed on the outer side wall of the circumference of the rotary seat 21, the rotary blocks 211 correspond to the taper hole 113, and the space profile between two adjacent rotary blocks 211 is the same as the section profile of the socket 122. The foundation pile 11 rotates and wears to be equipped with rotary column 2, and rotary column 2 and foundation pile 11's the central axis coincidence each other, rotary column 2 are fixed to be worn to locate swivel mount 21, and swivel mount 21 rotation can be operated to the one end that rotary column 2 stretches out foundation pile 11. When the bottom pile 11 is hammered into the soil around the pile, the rotating block 211 rotates to the lower side of the accommodating groove 111, the rotating block blocks the taper hole 113, and the blockage caused by the fact that the soil enters the bottom pile 11 from the taper hole 113 can be avoided. The rotary column 2 is rotated reversely, so that the rotary blocks 211 are separated from the positions corresponding to the taper holes 113, the socket 122 can be inserted into the taper holes 113 through the position between two adjacent rotary blocks 211, and the rotary column 2 is limited to rotate by the socket 122.

Referring to fig. 1 and 2, the reinforcing member is a compression nut 22, a through communication hole 1211 is formed in a central axis of the connecting seat 121, the rotary column 2 is inserted into the communication hole 1211, the socket 122 limits the rotation of the rotary column 2, and one end of the rotary column 2 extending out of the top pile 12 is in threaded connection with the compression nut 22 to fix the bottom pile 11 and the top pile 12 to each other.

Hold the subassembly of holding tightly and include that locking bolt 411, lock nut and two mutual splice closures locate the arc hoop 4 in the pile foundation 1 outside, and the tip of two arc hoops 4 is close to each other and links up, and the internal diameter of arc hoop 4 equals with the external diameter of pile foundation 1. The tip of arc hoop 4 radially extends has connecting end 41, and two connecting ends 41 that are close to each other are worn to locate by locking bolt 411, and lock nut threaded connection stretches out the tip of connecting end 41 in locking bolt 411, fixes two arc hoops 4 in the outside of pile foundation 1.

Chain subassembly includes chain 5, connecting bolt 52 and U-shaped steel bar 51, and the connecting hole that aligns each other is seted up to two link 41 that are close to each other, and connecting bolt 52 wears to locate the connecting hole, and connecting bolt 52 wears to locate the both ends of U-shaped steel bar 51 respectively at the both ends that stretch out two connecting holes respectively, and connecting bolt 52 passes U-shaped steel bar 51's tip threaded connection has coupling nut, with U-shaped steel bar 51 and two arc hoops 4 reciprocal anchorages. The both ends of chain 5 respectively with two adjacent pile foundation 1's U-shaped steel bar 51 fixed connection to it is fixed with two adjacent pile foundation 1 take-up, strengthen the anti-wind shock resistance of building, the bearing capacity of pile foundation 1 improves.

The application relates to an implementation principle of a building pile foundation, which comprises the following steps: after excavating the foundation pit on the ground, hammer into the bottom of foundation pit with foundation pile 11 in advance, change piece 211 and block the taper hole 113 of foundation pile 11, avoid foundation pile 11 to hammer into in-process earth and get into inside the foundation pile 11. Inside the storage tank 111 was hammered into to the socket 122 of pile foundation 12 afterwards, socket 122 utilized the edge strip 3 to detain 31 ejecting end pile 11 with the arc, and inserted the shape of detaining on the soil of pile week, can strengthen the pile foundation 1 and be connected with the soil of pile week, utilize afterwards to compress tightly locking bolt 411 to fix pile foundation 12 and end pile 11 mutually, wholly improve the bearing capacity of pile foundation 1. The two arc hoops 4 are sleeved on the outer side of the pile foundation 1, the two arc hoops 4 are fixed through the locking bolts 411 and the locking nuts, then the arc hoops 4 of the two adjacent pile foundations 1 are connected through the chains 5, and the wind resistance and the earthquake resistance of the building are improved.

The application also discloses construction process of building pile foundation 1 can realize through above-mentioned building pile foundation 1, refer to fig. 1 and fig. 2, include following step:

the method comprises the following steps: preparing a site before construction, excavating a foundation pit in the site before construction, wherein the excavation depth of the foundation pit is 0.5-1 m, supporting the foundation pit, leveling and tamping the bottom of the foundation pit, and measuring and marking the position of a pile foundation 1;

step two: the bottom pile 11 is hammered into the pile surrounding soil in advance at the bottom of the foundation pit by using a vibration hammer, the top of the bottom pile 11 is ensured to be positioned above the bottom surface of the foundation pit, then the socket 122 of the top pile 12 is hammered into the bottom pile 11 by using the vibration hammer, the arc-shaped buckle 31 is inserted into the pile surrounding soil, and the top pile 12 and the bottom pile 11 are fixed by using the compression nut 22;

step three: sleeving two arc hoops 4 on the outer sides of pile foundations 1, wherein the two arc hoops 4 are connected with locking nuts through locking bolts 411, and the arc hoops 4 of two adjacent pile foundations 1 are connected through chains 5;

step four: and (3) backfilling soil around the foundation pit, wherein the backfilled plane of the foundation pit is positioned below the top surfaces of the top piles 12, and installing bearing platforms 6 at the tops of the top piles 12 to complete construction of the building pile foundation.

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

Claims

1. A building pile foundation is characterized in that: including a plurality of pile foundation (1) of inserting locating pile week soil and set up in cushion cap (6) at a plurality of pile foundation (1) tops, pile foundation (1) include foundation pile (11) and lie in top pile (12) on foundation pile (11), a plurality of storage tanks (111) have been seted up to foundation pile (11) top surface, be provided with back-off in storage tank (111), top pile (12) include connecting seat (121) and set up in connecting seat (121) towards socket (122) of foundation pile (11) one side, socket (122) are used for driving back-off and stretch out storage tank (111) and insert pile week soil, top pile (12) and foundation pile (11) are fixed mutually through strengthening the subassembly, pile foundation (1) are provided with and hold the subassembly tightly, adjacent two the subassembly of holding tightly of pile foundation (1) is connected through the chain component.

2. A building pile foundation as claimed in claim 1, wherein: the back-off piece includes that the arc that storage tank (111) lateral wall is kept away from to the lateral wall rotation of one end and storage tank (111) and is connected of leading strake (3) and one end and lead strake (3) and detain (31), the diameter that guide strake (3) and arc were detained (31) coincides mutually, the centre of a circle position that the arc was detained (31) coincides mutually with the rotation tie point that leads strake (3) at storage tank (111) lateral wall, perforation (115) that are linked together with storage tank (111) are seted up to end stake (11) lateral wall, the extension route of perforation (115) coincides mutually with the extension circumference limit that the arc was detained (31), perforation (115) are used for supplying arc to detain (31) and stretch out storage tank (111), socket (122) cooperation is inserted and is located storage tank (111.

3. A building pile foundation as claimed in claim 2, wherein: the lateral wall of storage tank (111) is seted up and is carried out the groove of dodging (114) of accomodating to leading strake (3), lead strake (3) and rotate with the lateral wall of dodging groove (114) through pivot (32) and be connected, pivot (32) are provided with the drive arc and detain (31) and accomodate the torsional spring in storage tank (111).

4. A building pile foundation as claimed in claim 2, wherein: the bottom in the bottom pile (11) is provided with a built-in cavity (112) communicated with the containing groove (111), one end, away from the connecting seat (121), of the socket (122) is provided with a pointed cone part (1221), the bottom pile (11) is provided with a taper hole (113) communicated with the built-in cavity (112), the taper hole (113) is used for the pointed cone part (1221) to stretch out of the bottom pile (11) and to be inserted into soil around the pile, and the built-in cavity (112) is provided with a blocking assembly for blocking the taper hole (113).

5. The building pile foundation as claimed in claim 4, wherein: block the subassembly including rotating swivel mount (21) and a plurality of rings that set up in built-in chamber (112) and set up in commentaries on classics piece (211) of swivel mount (21) lateral wall, commentaries on classics piece (211) are used for blockking taper hole (113), end stake (11) are rotated and are provided with rotary column (2), rotary column (2) and swivel mount (21) fixed connection, end stake (11) top is stretched out to the one end of rotary column (2).

6. A building pile foundation as claimed in claim 5, wherein: the reinforcing component is a compression nut (22), the top pile (12) is provided with a communicating hole (1211) for the rotary column (2) to penetrate through, and one end, extending out of the communicating hole (1211), of the rotary column (2) is in threaded connection with the compression nut (22).

7. A building pile foundation as claimed in claim 1, wherein: hold the subassembly tightly and include locking bolt (411), lock nut and two arc hoops (4), two the outside of pile foundation (1) is located to arc hoops (4) splice cover each other, the tip of arc hoops (4) radially extends has link (41), connecting end (41) that two arc hoops (4) are close to each other are worn to locate in locking bolt (411), the tip and the lock nut threaded connection of link (41) are stretched out in locking bolt (411).

8. A building pile foundation as claimed in claim 7, wherein: chain subassembly includes chain (5), connecting bolt (52) and U-shaped billet (51), connecting bolt (52) are worn to locate two arc hoops (4) link (41) that are close to each other, the both ends of U-shaped billet (51) are worn to locate respectively at the both ends of connecting bolt (52), the equal threaded connection in both ends that connecting bolt (52) stretched out U-shaped billet (51) has coupling nut, U-shaped billet (51) fixed connection that the both ends of chain (5) are close to each other with two adjacent pile foundations (1) respectively.

9. A construction process of a building pile foundation is characterized by comprising the following steps:

the method comprises the following steps: preparing a site before construction, excavating a foundation pit, wherein the excavation depth of the foundation pit is 0.5-1 m, supporting the foundation pit, and measuring and calculating the position of a marked pile foundation (1);

step two: the bottom pile (11) is hammered into the soil around the pile in advance at the bottom of the foundation pit, the top of the bottom pile (11) is ensured to be positioned above the bottom surface of the foundation pit, then the socket (122) of the top pile (12) is hammered into the bottom pile (11), the arc-shaped buckle (31) is inserted into the soil around the pile, and the top pile (12) and the bottom pile (11) are fixed;

step three: sleeving two arc hoops (4) on the outer sides of pile foundations (1), fixing the two arc hoops (4), and connecting the arc hoops (4) of two adjacent pile foundations (1) through chains (5);

step four: and backfilling soil around the foundation pit pile, and installing bearing platforms (6) at the tops of the plurality of top piles (12) to complete the construction of the foundation of the building pile foundation (1).