阅读说明：本技术 一种空心桩基础 (Hollow pile foundation ) 是由 汪洋 于 2021-08-11 设计创作，主要内容包括：本申请属于基坑施工领域,涉及一种空心桩基础,包括若干单元桩体,单元桩体的两端为第一连接端与第二连接端,相邻单元桩体之间的第一连接端与第二连接端之间设置有连接组件；连接组件包括第一连接端内壁上设置的第一套筒和第二连接端内壁上设置的用于与第一套筒插接配合的第二套筒,第一套筒伸出第一连接端,第一套筒的外壁与第一连接端的内壁留有供第二套筒插接的空隙,第二套筒伸出第二连接端,相邻单元桩体插接时,相邻单元桩体之间的第一连接端与第二连接端抵接。本申请将第一套筒和第二套筒隐藏在单元桩体的内部,减小单元桩体在打入地基后土壤中的氧气和水进入单元桩体内部侵蚀第一套筒和第二套筒的可能性,从而提升单元桩体连接稳固度。(The application belongs to the field of foundation pit construction, and relates to a hollow pile foundation which comprises a plurality of unit pile bodies, wherein two ends of each unit pile body are a first connecting end and a second connecting end, and a connecting assembly is arranged between the first connecting end and the second connecting end between the adjacent unit pile bodies; the connecting assembly comprises a first sleeve arranged on the inner wall of the first connecting end and a second sleeve arranged on the inner wall of the second connecting end and used for being in splicing fit with the first sleeve, the first sleeve stretches out of the first connecting end, a gap for splicing the second sleeve is reserved between the outer wall of the first sleeve and the inner wall of the first connecting end, the second sleeve stretches out of the second connecting end, and when adjacent unit pile bodies are spliced, the first connecting end between the adjacent unit pile bodies is abutted to the second connecting end. The first sleeve and the second sleeve are hidden inside the unit pile body, the possibility that oxygen and water in soil enter the unit pile body to corrode the first sleeve and the second sleeve after the unit pile body is driven into a foundation is reduced, and therefore the connection stability of the unit pile body is improved.)

1. The utility model provides a hollow pile basis, includes a plurality of unit pile bodies (1), its characterized in that: the two ends of each unit pile body (1) are respectively provided with a first connecting end (11) and a second connecting end (14), and a connecting assembly is arranged between the first connecting end (11) and the second connecting end (14) between the adjacent unit pile bodies (1); the connecting assembly comprises a first sleeve (12) arranged on the inner wall of the first connecting end (11) and a second sleeve (15) arranged on the inner wall of the second connecting end (14) and used for being in splicing fit with the first sleeve (12), and the first connecting end (11) between adjacent unit pile bodies (1) is abutted to the second connecting end (14).

2. The hollow pile foundation of claim 1, wherein: be provided with the retaining member between first sleeve (12) and second sleeve (15), the retaining member is card post (151) that second sleeve (15) improved level set up, it supplies draw-in groove (121) that card post (151) card was gone into to correspond to be provided with on first sleeve (12), draw-in groove (121) supply vertical portion (1211) that grafting direction got into and horizontal portion (1212) that the level set up including vertical setting card post (151), horizontal portion (1212) are linked together with vertical portion (1211), card post (151) and draw-in groove (121) looks joint.

3. The hollow pile foundation of claim 2, wherein: the both ends of card post (151) span second sleeve (15), the both ends of card post (151) and the lateral wall fixed connection of second sleeve (15).

4. The hollow pile foundation of claim 2, wherein: and a fixing piece for fixing the clamping column (151) is arranged in the clamping groove (121).

5. The hollow pile foundation of claim 4, wherein: the fixing piece adopts a self-locking clamp spring (1213) arranged at the transverse part (1212) of the clamping groove (121), and the opening of the self-locking clamp spring (1213) faces to the communication part of the transverse part (1212) and the vertical part (1211) of the clamping groove (121).

6. The hollow pile foundation of claim 1, wherein: the contact surfaces of the first connecting end (11) and the second connecting end (14) of the unit pile body (1) are connecting surfaces; the connecting surface is bent along the direction from the outside to the inside of the unit pile body (1).

7. The hollow pile foundation of claim 6, wherein: the inflection point of the bending part of the connecting surface is called as a bending point, and a plurality of bending points are arranged.

8. The hollow pile foundation of claim 1, wherein: the first sleeve (12) is a first sleeve (12) made of steel, and the second sleeve (15) is a second sleeve (15) made of steel.

9. The hollow pile foundation of claim 1, wherein: the outer surface of the first sleeve (12) is provided with a waterproof coating; the outer surface of the second sleeve (15) is provided with a waterproof coating.

10. The hollow pile foundation of claim 9, wherein: the waterproof coating is a waterproof paint layer.

Technical Field

The application relates to the field of foundation pit construction, in particular to a hollow pile foundation.

Background

The pile foundation has a good effect on reinforcing the foundation as a foundation treatment means. When the geological conditions of construction are poor and the bearing capacity of the foundation is small, the hollow pile is driven into the ground, the weight of the upper building is transferred to the soil layer with higher bearing capacity of the lower layer through the tubular pile, so that the foundation is reinforced, and the support of the foundation for the upper building is improved.

Hollow piles are usually in the shape of pipelines, are generally prefabricated and are transported to construction sites for use. During the piling process, hollow piles with different lengths are selected according to different requirements, and the prefabricated hollow piles are required to be connected to obtain a unit pile body with a proper length.

Common hollow piles are generally provided with steel plates at both ends, which are connected with each other through the steel plates. After connection, the unit pile bodies are driven into the ground, and water, oxygen and the like contained in underground soil easily corrode the steel plate joints of adjacent hollow piles, so that the joints of the steel plates are rusted and corroded, and the joints among the unit pile bodies can be broken in serious cases, so that the reinforcing capacity of the unit pile bodies on the foundation and the supporting force of the unit pile bodies on an upper building are weakened, and the stability of the foundation is not facilitated.

Disclosure of Invention

In order to promote the degree of stability of hollow pile junction, this application provides a hollow pile basis.

The application provides a hollow pile foundation adopts following technical scheme:

a hollow pile foundation comprises a plurality of unit pile bodies, wherein a first connecting end and a second connecting end are respectively arranged at two ends of each unit pile body, and a connecting assembly is arranged between the first connecting end and the second connecting end between adjacent unit pile bodies; the connecting assembly comprises a first sleeve arranged on the inner wall of the first connecting end and a second sleeve arranged on the inner wall of the second connecting end and used for being in splicing fit with the first sleeve, and the first connecting end between adjacent unit pile bodies is abutted to the second connecting end.

Different with the connected mode of the external steel sheet of tradition, this application sets up first sleeve on first link inner wall through adopting above-mentioned technical scheme, sets up the second sleeve on second link inner wall, through the grafting of first sleeve and second sleeve, can peg graft together between the messenger adjacent unit pile body. After pegging graft, the first link of the unit pile body and the section butt of the second link of adjacent unit pile body, make first sleeve and second sleeve contained inside the unit pile body, the concrete unit pile body can carry out effectual protection to first sleeve and second sleeve, reduce the possibility that the water in the soil corrodes first sleeve and second sleeve jointly with oxygen after the unit pile body squeezes into the ground, alleviate the rusty degree of unit pile body junction, and then make the unit pile body be difficult for the fracture after connecting, strengthen the reinforcing ability and the superstructure holding power of unit pile body to the ground.

In addition, the connection mode of splicing between adjacent unit pile bodies is simple and convenient, is convenient for constructors to operate, can reduce manpower and material resources used for connecting between the adjacent unit pile bodies so as to achieve the effects of energy conservation and emission reduction, and accords with the green concept of sustainable development of the current society.

Optionally, be provided with the retaining member between first sleeve and the second sleeve, the retaining member is the card post that the level set up on the second sleeve, corresponds on the first sleeve to be provided with the draw-in groove that supplies card post card to go into, and the draw-in groove includes vertical setting supplies the vertical portion that the card post got into along the grafting direction and the horizontal portion that the level set up, and horizontal portion and vertical portion are linked together, card post and draw-in groove looks joint.

Through adopting above-mentioned technical scheme, when first sleeve and second sleeve are pegged graft, the card post on the second sleeve can be followed the vertical portion that the grafting direction got into the draw-in groove, and through rotatory first sleeve or second sleeve, can get into the horizontal portion of draw-in groove with the card post, make first sleeve and the telescopic connection of second more firm, and then further consolidate the connection steadiness between the adjacent unit pile body, and the locking mode of card post and draw-in groove is simple, can promote the convenience of work progress.

Optionally, both ends of the clamping column span the second sleeve, and both ends of the clamping column are fixedly connected with the side wall of the second sleeve.

Through adopting above-mentioned technical scheme, the card post spanes on the telescopic inner wall of second, when acting as the retaining member, can play the effect of supporting the telescopic inner wall of second to consolidate the telescopic structural strength of second, and then strengthen first sleeve and the telescopic stability of second, thereby promote the structure steadiness after adjacent unit pile body connects.

Optionally, a fixing part for fixing the clamping column is arranged in the clamping groove.

Through adopting above-mentioned technical scheme for the joint of card post and draw-in groove is more firm, strengthens the stability of card post and draw-in groove, takes place the possibility of mutual displacement under the exogenic action with reducing the unit pile body when burying in the ground.

Optionally, the fixing member adopts a self-locking snap spring arranged at the transverse portion of the clamping groove, and an opening of the self-locking snap spring faces to a communication position between the transverse portion and the vertical portion of the clamping groove.

By adopting the technical scheme, the clamping column is not easy to separate from the self-locking snap spring after being clamped into the self-locking snap spring by utilizing the structural characteristics of the self-locking snap spring; the auto-lock jump ring easily acquires in daily life, can reduce the production degree of difficulty that this application was processed in production.

Optionally, the contact surfaces of the first connection end and the second connection end of the unit pile body are connection surfaces; the connection surface is bent along the direction from the outside to the inside of the unit pile body.

Through adopting above-mentioned technical scheme, set up the connection face of first link and second link into the form of buckling, not only can prolong the length of the intercommunication passageway between inside and outside the adjacent unit pile body, and, can also improve the tortuosity of the intercommunication passageway between inside and outside the adjacent unit pile body, increase the degree of difficulty that the medium flows through the intercommunication passageway between inside and outside the adjacent unit pile body from this, therefore, the leakproofness of the junction of adjacent unit pile body is higher, oxygen and water in the soil are difficult for connecting face by unit pile body outside entering unit pile body inside through above-mentioned, reduce the possibility that the junction receives moisture and oxygen in the soil to corrode from this, and then promote the stability after adjacent unit pile body connects.

Optionally, the inflection point of the bending position of the connecting surface is called as a bending point, and a plurality of bending points are arranged.

By adopting the technical scheme, the connection surface between the first connection end and the second connection end is more tortuous due to the arrangement of the plurality of bending points, so that the length and the tortuosity of a channel between the inside and the outside of the unit pile body are further prolonged, and the sealing property between the adjacent unit pile bodies is further improved.

Optionally, the first sleeve is made of steel, and the second sleeve is made of steel.

Through adopting above-mentioned technical scheme, first sleeve and the second sleeve of steel can strengthen first sleeve and the telescopic structural strength of second to promote the overall structure intensity after first sleeve and the connection of second sleeve, make the unit pile body more firm after connecting.

Optionally, the outer surface of the first sleeve is provided with a waterproof coating; the outer surface of the second sleeve is provided with a waterproof coating.

Through adopting above-mentioned technical scheme, waterproof coating further reduces first sleeve and second sleeve and receives the possibility that moisture corrodes in the soil, promotes first sleeve and second sleeve durability.

Optionally, the waterproof coating is a waterproof paint layer.

Through adopting above-mentioned technical scheme, waterproof paint's waterproof performance is outstanding, and easily acquires in daily life, and the cost is lower relatively, moreover, also construction convenience, the hollow pile foundation's of the application of being convenient for production is prefabricated.

To sum up, the application comprises the following beneficial technical effects:

1. the first connecting end of each unit pile body is abutted with the end face of the second connecting end of the adjacent unit pile body, so that the first sleeve and the second sleeve are contained in the unit pile body, the possibility that water and oxygen in soil jointly erode the first sleeve and the second sleeve after the unit pile body is driven into a foundation is reduced, the rusting degree of the connecting part of the unit pile body is reduced, the unit pile body is not easy to break after being connected, and the reinforcing capacity of the unit pile body on the foundation and the supporting force of an upper building are enhanced;

2. the clamping column can enter the transverse part of the clamping groove by rotating the first sleeve or the second sleeve, so that the first sleeve and the second sleeve are connected more stably, the connection stability between adjacent bodies is further strengthened, meanwhile, the locking mode of the clamping column and the clamping groove is simple, and the convenience of the construction process can be improved;

3. when the end face of the first connecting end and the end face of the second connecting end are meshed, the permeation path of oxygen and water in soil at the permeation connection position can be increased, so that oxygen and moisture are not easy to permeate, meanwhile, the end face of the first connecting end and the end face of the second connecting end can prevent moisture and oxygen from entering, the possibility of water and oxygen erosion in soil at the connection position is reduced, and the stability of adjacent unit pile bodies after connection is improved;

4. the connection mode of splicing between adjacent unit pile bodies is simple and convenient, is convenient for constructors to operate, can reduce manpower and material resources used for connecting between the adjacent unit pile bodies so as to achieve the effects of energy conservation and emission reduction, and accords with the green concept of sustainable development of the current society.

Drawings

Fig. 1 is a schematic view of the overall structure of a single unit pile body of a hollow pile foundation according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a first connecting end of a hollow pile foundation according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a second connecting end of a hollow pile foundation according to an embodiment of the present application.

Fig. 4 is a vertical sectional view of a hollow pile foundation according to an embodiment of the present application.

Description of reference numerals:

1. a unit pile body; 11. a first connection end; 12. a first sleeve; 121. a card slot; 1211. a vertical portion; 1212. a transverse portion; 1213. a self-locking snap spring; 13. a connecting ring; 14. a second connection end; 15. a second sleeve; 151. and (5) clamping the column.

Detailed Description

The present application is described in further detail below.

The embodiment discloses a hollow pile foundation, which comprises a plurality of unit pile bodies 1, and referring to fig. 1, two ends of each unit pile body 1 are a first connecting end 11 and a second connecting end 14, and a connecting assembly is arranged between the first connecting end 11 and the second connecting end 14 between adjacent unit pile bodies 1; the coupling assembly comprises a first sleeve 12 and a second sleeve 15, the first sleeve 12 being connected to the inner wall of the first connection end 11 and the second sleeve 15 being connected to the inner wall of the second connection end 14.

As shown in fig. 2, the unit pile body 1 is in a long tubular shape and is vertically arranged along the axial direction. The bottom end of the unit pile body 1 is a first connecting end 11. Along the direction from the outside to the inside of the unit pile body 1, the end surface of the first connection end 11 is bent, that is, the outer ring of the first connection end 11 far away from the inner wall is sunken or raised towards the inner ring, and the sunken and raised parts are spaced from each other, so that the vertical section of the end surface of the bent first connection end 11 is wavy.

A first sleeve 12 is arranged on the inner wall of the first connecting end 11. The first sleeve 12 is a steel first sleeve 12. The first sleeve 12 is in a circular tube shape, and the axis of the first sleeve coincides with the axis of the unit pile body 1.

Referring to fig. 4, a connection ring 13 is disposed between the top of the outer sidewall of the first sleeve 12 and the inner wall of the first connection end 11. The connecting ring 13 is annular and is sleeved on the outer wall of the first sleeve 12, the axis direction coincides with the axis of the first sleeve 12, the inner wall of the connecting ring 13 is fixedly connected with the outer side wall of the first sleeve 12, and the outer wall of the connecting ring 13 is fixedly connected with the inner wall of the first connecting end 11. The first sleeve 12 is fixedly connected to the inner wall of the first connection end 11 by a connection ring 13. As shown in fig. 2, the bottom end of the first sleeve 12 extends out of the first connection end 11 and is exposed to the outside. A gap for splicing and matching is reserved between the first sleeve 12 and the inner wall of the first connecting end 11.

Four clamping grooves 121 are formed in the side wall of the lower portion of the first sleeve 12, and the four clamping grooves 121 are evenly arranged along the circumferential side wall of the first sleeve 12 at intervals. The locking slot 121 extends through a side wall of the first sleeve 12. The card slot 121 includes a vertical portion 1211 and a transverse portion 1212. The vertical portion 1211 is formed in a shape of a long groove, a length direction thereof is parallel to an axial direction of the first sleeve 12, and a bottom end of the vertical portion 1211 communicates with the outside. The transverse portion 1212 is located at the top end of the vertical portion 1211. The transverse portion 1212 is also formed in an elongated groove shape and is horizontally disposed, and one end of the transverse portion 1212 in the longitudinal direction communicates with the top end of the vertical portion 1211.

The inner wall of the other end of the transverse portion 1212 in the length direction is provided with a fixing member, and the fixing member is a self-locking snap spring 1213. Self-locking snap spring 1213 is fixedly connected with the inner wall of transverse portion 1212, and the opening of self-locking snap spring 1213 faces the communication between transverse portion 1212 and vertical portion 1211.

The top end of the unit pile body 1 is a second connecting end 14. Along the outside direction to inside of unit pile body 1, the terminal surface of second link 14 is bent equally, namely, second link 14 is sunken or protruding to the inner circle by the outer lane of keeping away from the inner wall of second link, and sunken and protruding mutual interval makes the vertical cross-section of the terminal surface of second link 14 after buckling be wavy. When the adjacent unit piles 1 are connected, the end face of the first connecting end 11 is in fit abutment with the end face of the second connecting end 14, thereby reducing the possibility that moisture and oxygen in the soil enter the inside of the unit pile 1 from the end faces.

As shown in fig. 3, a second sleeve 15 is provided on the inner wall of the second connection end 14. The second sleeve 15 is a second sleeve 15 made of steel. The second sleeve 15 is also in the shape of a circular tube, and the axis of the second sleeve coincides with the axis of the unit pile body 1. The bottom end of the second sleeve 15 is fixedly connected with the inner wall of the second connecting end 14. The tip of the second sleeve 15 also protrudes beyond the end of the second connection end 14.

The middle upper part of the side wall of the second sleeve 15 is provided with a locking piece, and the locking piece adopts two clamping columns 151. The two clamping columns 151 are in a long cylindrical shape, the two clamping columns 151 are perpendicular to each other and fixedly connected in the middle of the length direction, and the connection position between the two clamping columns 151 is located at the axis of the second sleeve 15. The two ends of the clamping column 151 in the length direction are respectively fixedly connected with the inner wall of the second sleeve 15.

As shown in fig. 4, when the adjacent unit pile bodies 1 are connected, the first sleeve 12 and the second sleeve 15 are in insertion fit, the clamping column 151 on the second sleeve 15 can vertically enter the vertical portion 1211 of the clamping groove 121 along the insertion direction, and by rotating the first sleeve 12 or the second sleeve 15, the clamping column 151 can enter the horizontal portion 1212 of the clamping groove 121 and be clamped into the self-locking clamping spring 1213, and through the structural characteristics of the self-locking clamping spring 1213, the clamping column 151 is not easily separated from the self-locking clamping spring 1213 after being clamped into the self-locking clamping spring 1213, so that the connection between the first sleeve 12 and the second sleeve 15 is more stable, and the connection stability between the adjacent unit pile bodies is further enhanced.

The outer surfaces of the first sleeve 12 and the second sleeve 15 are coated with a waterproof coating. The waterproof coating adopts waterproof paint. The waterproof paint has excellent waterproof performance, even if a small part of moisture and oxygen in soil still permeates into the first sleeve 12 and the second sleeve 15, the waterproof paint can protect the first sleeve 12 and the second sleeve 15, so that the possibility that the first sleeve 12 and the second sleeve 15 are corroded by the moisture in the soil is reduced, and the durability of the first sleeve 12 and the second sleeve 15 is improved.

When a plurality of unit pile bodies 1 are connected, a first sleeve 12 is not needed to be arranged on the first connecting end 11 of the unit pile body 1 at the bottom, and correspondingly, a second sleeve 15 is not needed to be arranged on the second connecting end 14 of the unit pile body 1 at the top, so that materials used in production are saved.

The implementation principle of a hollow pile foundation of this embodiment is: aligning the first connection end 11 and the second connection end 14 of the adjacent unit pile body 1 with each other, and then inserting and matching the first sleeve 12 with the second sleeve 15, wherein when the first sleeve 12 and the second sleeve 15 are inserted and matched, the clamping column 151 of the second sleeve 15 enters the vertical portion 1211 of the clamping groove 121 of the first sleeve 12; after the insertion, the unit pile body 1 is rotated to transfer the clamping column 151 to the transverse portion 1212 of the clamping groove 121, and the clamping column 151 is tightly clamped with the self-locking clamp spring 1213 disposed at the clamping groove 121, so that the first sleeve 12 and the second sleeve 15 can be tightly inserted. And after first sleeve 12 and second sleeve 15 are pegged graft, the terminal surface of first link 11 and the terminal surface intermeshing of second link 14, contain first sleeve 12 and the junction of second sleeve 15 in unit pile body 1, after reducing unit pile body 1 and driving into the ground, moisture and oxygen in the ground corrode the possibility of unit pile body 1 first sleeve 12 and second sleeve 15, alleviate the rusty degree of unit pile body 1 junction, and then make unit pile body 1 be difficult for the fracture after connecting, reinforcing capacity and the superstructure holding power of reinforcing ability and superstructure of reinforcing unit pile body 1 to the ground.

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.