阅读说明：本技术 一种预制水平承载式高韧性混凝土透水桩及其制备方法 (Prefabricated horizontal bearing type high-toughness concrete permeable pile and preparation method thereof ) 是由 胡鹏 于 2020-11-17 设计创作，主要内容包括：本发明公开了一种预制水平承载式高韧性混凝土透水桩,包括桩身本体、桩头本体,所述桩身本体为圆柱形结构,所述桩身本体的表面圆周均匀设有菱形凸块,所述桩身本体的顶端中部设有圆柱连接凸块,所述主钢梁的内侧面横向交叉焊接有支撑钢梁,所述菱形凸块的内层设有三角钢件,所述桩头本体为圆锥型钻头,本发明使用时通过桩身本体上端圆柱连接凸块的设置,可以根据预制透水桩打入土层内部的深度进行安装,并延伸桩身本体的长度,方便拆卸与连接延伸,通过该预制透水桩中高韧性混凝土的使用,能够为桩身本体提供良好的抗弯性能和抵抗破坏的能力来防止预制透水桩发生变形或开裂,且能够允许桩身本体端部发生一定程度的水平位移,适用范围更广。(The invention discloses a prefabricated horizontal bearing type high-toughness concrete permeable pile, which comprises a pile body and a pile head body, wherein the pile body is of a cylindrical structure, rhombic convex blocks are uniformly arranged on the circumference of the surface of the pile body, a cylindrical connecting convex block is arranged in the middle of the top end of the pile body, a supporting steel beam is transversely and crossly welded on the inner side surface of a main steel beam, a triangular steel part is arranged on the inner layer of each rhombic convex block, and the pile head body is a conical drill bit. And can allow this end of body of the pile to take place the horizontal displacement of certain degree, application scope is wider.)

1. The utility model provides a precast horizontal bearing formula high tenacity concrete pile that permeates water, includes pile body (1), pile head body (2), its characterized in that: the pile body (1) is of a cylindrical structure, rhombic convex blocks (5) are uniformly arranged on the surface circumference of the pile body (1), cylindrical connecting convex blocks (3) are arranged in the middle of the top end of the pile body (1), the pile body (1) is of a double-layer structure, an annular steel frame (101) is arranged on one layer inside the pile body (1) in a plurality of layers, main steel beams (102) are uniformly and vertically welded on the inner sides of the annular steel frame (101), fixed steel parts (103) are welded between the main steel beams (102), supporting steel beams (104) are transversely and crossly welded on the inner side surfaces of the main steel beams (102), connecting bolt parts (4) are welded on the bottom ends of the main steel beams (102), triangular steel parts (105) are arranged on the inner layer of the rhombic convex blocks (5), one ends of the triangular steel parts (105) are fixedly welded on the outer side surfaces of the annular steel frame (101), and the triangular steel members (105) are uniformly welded on the annular steel frame (101) in a circle, the pile head body (2) is a conical drill bit, the top end of the conical drill bit is provided with a connecting steel pile (7), and the pile head body (2) is connected with the bottom of a main steel beam (102) arranged in the pile body (1) through the connecting steel pile (7) arranged at the top end.

2. The prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1, characterized in that: the pile head body (2) is connected with the bottom of a main steel beam (102) arranged in the pile body (1) through a connecting steel pile (7) arranged at the top end, and the pile head body (2) is formed by steel bars.

3. The prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1, characterized in that: the lateral wall of pile body (1) sets up and permeates water hole (6) a plurality of, and permeates water hole (6) and be the heliciform setting of arranging.

4. The prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1, characterized in that: and high-toughness concrete (8) is poured on the circumferential surfaces of the triangular steel part (105) arranged in the pile head body (2), the supporting steel beam (104) arranged in the pile body (1), the fixed steel part (103) and the annular steel frame (101).

5. The prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 4, characterized in that: the high-toughness concrete (8) is prepared by mixing cement, fly ash, quartz sand, water and short fibers through stirring.

6. The prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1, characterized in that: the outer surface of the high-toughness concrete (8) is coated with permeable geotextile.

7. The prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1, characterized in that: the outer diameter of a cylindrical connecting lug (3) arranged on the pile body (1) is 30-40 cm, the outer diameter of the pile body (1) is 60-70 cm, and the diameter of the pile body (1) is smaller than the diameter of the top surface of the pile head body (2) and is 8-10 cm.

8. The prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1, characterized in that: the steel frame is characterized in that 8 main steel beams (102) are uniformly arranged in the annular steel frame (101), the annular steel frame (101) is uniformly provided with a plurality of main steel beams (102), and the welding distance between the annular steel frames (101) is 20 cm-25 cm on the main steel beams (102).

9. The preparation method of the prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1 is characterized by comprising the following steps of: the method specifically comprises the following steps:

s1, firstly, forming a diamond-shaped convex block (5) formed by a triangular steel piece (105), and forming a prefabricated water permeable pile steel frame integrally with a pile body (1) formed by a support steel beam (104), a fixed steel piece (103) and an annular steel frame (101) and a pile head body (2) formed by a steel bar through welding;

s2, hoisting the prefabricated water-permeable pile steel frame into a prefabricated mould by using a truss crane, after hoisting the prefabricated water-permeable pile steel frame into a steel mould, fixing two ends of a pile body (1) by adopting an annular steel plate and a pile head body (2) by adopting a conical structural steel plate, and arranging a plurality of bolts corresponding to nuts on the annular steel plate and the conical structural steel plate, wherein a gap in the steel mould is a tensioning gap;

s3, pouring high-toughness concrete (8) into the inner side of the steel film and the steel frame of the water permeable pile, reserving corresponding water permeable holes (6) according to the required water permeability when pouring the pile body (1), then after pouring the high-toughness concrete (8), surrounding a circle of water permeable geotextile around the steel die, hanging the other half of the steel die, sealing, vibrating and curing;

and S4, pouring, solidifying and molding the prefabricated water permeable pile steel frame and the high-toughness concrete (8), and then removing the steel film to obtain the water permeable pile.

Technical Field

The invention belongs to the technical field of civil engineering, and particularly relates to a prefabricated horizontal bearing type high-toughness concrete permeable pile.

Background

The existing permeable pile technology uses materials with large porosity and strong permeability, such as permeable concrete piles or gravel piles, which can play a role in bearing the pile body and can form vertical drainage channels to accelerate the dissipation of hyperstatic pore water pressure in the soil body, thereby improving the consolidation rate of the foundation. However, the existing permeable pile technology still has the following defects: first, its ability to withstand horizontal loading is low. The common pervious concrete pile cannot bear larger horizontal load due to weaker bending resistance of the material, and the common gravel pile needs to provide bearing capacity by virtue of the constraint action provided by the surrounding soil body, so that the horizontal load bearing capacity of the pile body is lower, and when the bearing capacity of the soil body around the pile is insufficient, the pile body is easy to expand and damage under the action of vertical load; secondly, the construction process is particularly complex. Particularly, the common permeable concrete pile is easy to generate the segregation phenomenon of concrete in the construction process, and the slow consolidation speed is easy to generate the hole blocking phenomenon, so that the site construction speed of the permeable concrete pile is slow, and the construction quality is difficult to control, which limits the continuous popularization and application of the existing permeable pile technology in civil engineering.

Disclosure of Invention

The invention aims to provide a prefabricated horizontal bearing type high-toughness concrete permeable pile and a preparation method thereof, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a prefabricated horizontal bearing type high-toughness concrete water permeable pile comprises a pile body and a pile head body, wherein the pile body is of a cylindrical structure, rhombic convex blocks are uniformly arranged on the circumference of the surface of the pile body, a cylindrical connecting convex block is arranged in the middle of the top end of the pile body, the interior of the pile body is of a double-layer structure, a plurality of annular steel frames are arranged on one layer of the interior of the pile body, main steel beams are uniformly and vertically welded on the inner sides of the annular steel frames, fixing steel parts are welded among the main steel beams, supporting steel beams are transversely and crosswise welded on the inner side surfaces of the main steel beams, connecting bolt parts are welded at the bottom ends of the main steel beams, a plurality of triangular steel parts are arranged on the inner layer of the rhombic convex blocks, one end of each triangular steel part is fixedly welded with the outer side surface of the annular steel frame, the triangular steel parts are uniformly welded on the periphery of the annular, and the top end of the conical drill bit is provided with a connecting steel pile, and the pile head body is connected with the bottom of a main steel beam arranged in the pile body through the connecting steel pile arranged at the top end.

Preferably, the pile head body is connected with the bottom of a main steel beam arranged in the pile body through a connecting steel pile arranged at the top end, and the pile head body is formed by steel bars.

Preferably, the lateral wall setting of pile body is permeated water the hole a plurality of, and the hole of just permeating water is the heliciform setting of arranging.

Preferably, the triangular steel piece arranged in the pile head body and the supporting steel beam, the fixing steel piece and the circumferential surface of the annular steel frame arranged in the pile body are poured with high-toughness concrete.

Preferably, the high-toughness concrete is prepared by mixing cement, fly ash, quartz sand, water and short fibers through stirring.

Preferably, the outer surface of the high-toughness concrete is coated with a permeable geotextile.

Preferably, the outer diameter of the cylindrical connecting convex block arranged on the pile body is 30-40 cm, the outer diameter of the pile body is 60-70 cm, and the diameter of the pile body is smaller than the diameter of the top surface of the pile head body and is 8-10 cm.

Preferably, the main steel beams are uniformly provided with 8 steel beams in the annular steel frame, the annular steel frame is uniformly provided with a plurality of 8 main steel beams, and the welding distance between the annular steel frames is 20 cm to 25 cm on the main steel beams.

The invention also provides a preparation method of the prefabricated horizontal bearing type high-toughness concrete permeable pile, which comprises the following steps:

s1, firstly, forming diamond-shaped convex blocks formed by triangular steel pieces, and fixing pile body formed by supporting steel beams, fixed steel pieces and annular steel frames and pile head body formed by reinforcing steel bars into a whole by welding to form a prefabricated water permeable pile steel frame;

s2, hoisting the prefabricated water-permeable pile steel frame into a prefabricated mould by using a truss crane, after hoisting the prefabricated water-permeable pile steel frame into a steel mould, fixing two ends of a pile body by adopting an annular steel plate and a pile head body by adopting a conical structural steel plate, and hoisting a plurality of bolts corresponding to nuts through the annular steel plate and the conical structural steel plate, wherein the gap in the steel mould is a tensioning gap;

s3, pouring high-toughness concrete into the inner side of the steel membrane and the steel frame of the water-permeable pile, reserving corresponding water-permeable holes according to the required water permeability when pouring the pile body (1), then after the high-toughness concrete is poured, surrounding a circle of water-permeable geotextile around the steel mould, hanging the other half of the steel mould, sealing, vibrating and maintaining;

and S4, pouring, solidifying and molding the prefabricated water permeable pile steel frame and the high-toughness concrete, and then removing the steel film to obtain the water permeable pile.

The invention provides a precast horizontal bearing type high-toughness concrete permeable pile and a preparation method thereof, the precast horizontal bearing type high-toughness concrete permeable pile has the formed water permeability and strength when put into use compared with a permeable pile technology adopting a cast-in-place method, the drainage efficiency and the foundation consolidation speed are accelerated, the construction period can be shortened to a certain extent, the precast permeable pile is convenient by arranging a cylindrical connecting lug at the upper end of the pile body, the installation can be carried out according to the depth of the precast permeable pile to be driven into a soil layer, the length of the pile body is extended, the disassembly and the connection extension are convenient, the high-toughness concrete in the precast permeable pile can provide good bending resistance and damage resistance for the pile body to prevent the precast permeable pile from generating excessive deformation or cracking, and the end part of the pile body can be allowed to generate a certain degree of horizontal displacement, application scope is wider, through the even setting of rhombus lug on the pile body, can make this prefabricated stake and the inside abundant contact in soil layer of permeating water, increases the stability and the fastness that prefabricated stake of permeating water used after pre-buried to only rely on the rigidity of self can bear the load, and need not to rely on the confining force of the all soil body of stake.

Drawings

FIG. 1 is a schematic illustration of an explosive structure according to the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic top view of the pile head body of the present invention;

fig. 4 is a schematic top view of the interior of the pile body according to the present invention.

In the figure: 1 pile body, 101 annular steel frame, 102 main girder steel, 103 fixed steel, 104 support girder steel, 105 triangle steel, 2 pile head bodies, 3 cylinder connecting convex blocks, 4 connecting bolt pieces, 5 diamond-shaped convex blocks, 6 permeable holes, 7 connecting steel piles and 8 high-toughness concrete.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a prefabricated horizontal bearing type high-toughness concrete permeable pile as shown in figures 1-4, which comprises a pile body 1 and a pile head body 2, wherein the pile body 1 is of a cylindrical structure, rhombic convex blocks 5 are uniformly arranged on the circumference of the surface of the pile body 1, a cylindrical connecting convex block 3 is arranged in the middle of the top end of the pile body 1, the outer diameter of the cylindrical connecting convex block 3 arranged on the pile body 1 is 30-40 cm, the outer diameter of the pile body 1 is 60-70 cm, the diameter of the pile body 1 is smaller than the diameter of the top surface of the pile head body 2 and is 8-10 cm, the interior of the pile body 1 is of a double-layer structure, a plurality of annular steel frames 101 are arranged on one layer inside the pile body 1, main steel beams 102 are uniformly and vertically welded on the inner side of each annular steel frame 101, the pile head body 2 is connected with the bottoms of the main steel beams 102 arranged inside the pile body 1 through connecting steel piles 7 arranged at the top end, and the pile head body 2 is made of steel bars.

Fixed steel parts 103 are welded between the main steel beams 102, supporting steel beams 104 are transversely and crossly welded on the inner side surfaces of the main steel beams 102, connecting bolt parts 4 are welded at the bottom ends of the main steel beams 102, a plurality of triangular steel parts 105 are arranged on the inner layers of the rhombic convex blocks 5, one ends of the triangular steel parts 105 are fixedly welded with the outer side surfaces of the annular steel frames 101, water permeable holes 6 are formed in the side walls of the pile body 1, the triangular steel parts 105 arranged in the pile head body 2 and the supporting steel beams 104 arranged in the pile body 1 are spirally arranged in the water permeable holes 6, the fixed steel parts 103, high-toughness concrete 8 is poured on the circumferential surface of the annular steel frames 101, the high-toughness concrete 8 is formed by mixing cement, fly ash, quartz sand, water and short fibers, and water permeable geotextile are wrapped on the outer surfaces of the high-toughness concrete 8.

Triangle steel part 105 evenly welds and sets up in annular steelframe 101 a week, pile head body 2 is the circular cone type drill bit, and the top of circular cone type drill bit is equipped with connection piling bar 7, pile head body 2 is connected through the inside main girder steel 102 bottom of establishing of connection piling bar 7 and pile body 1 that the top was established, main girder steel 102 evenly is provided with 8 in annular steelframe 101, and annular steelframe 101 evenly is equipped with a plurality ofly on 8 main girder steels 102 of establishing, and the welding interval between the annular steelframe 101 is 20 centimetres to 25 centimetres on main girder steel 102.

The invention also provides a preparation method of the prefabricated horizontal bearing type high-toughness concrete permeable pile, which comprises the following steps:

s1, firstly, forming diamond-shaped convex blocks 5 formed by triangular steel pieces 105, and forming a prefabricated water permeable pile steel frame integrally with a pile body 1 formed by supporting steel beams 104, fixed steel pieces 103 and annular steel frames 101 and a pile head body 2 formed by reinforcing steel bars through welding and fixing;

s2, hoisting the prefabricated water-permeable pile steel frame into a prefabricated mould by using a truss crane, after hoisting the prefabricated water-permeable pile steel frame into a steel mould, fixing two ends of the pile body 1 by adopting an annular steel plate and the pile head body 2 by adopting a conical structural steel plate, and arranging a plurality of bolts corresponding to nuts on the annular steel plate and the conical structural steel plate, wherein a gap in the steel mould is a tensioning gap;

s3, pouring high-toughness concrete 8 into the inner side of the steel membrane and the steel frame of the water-permeable pile, reserving corresponding water-permeable holes 6 according to the required water permeability when pouring the pile body 1, then after pouring the high-toughness concrete 8, surrounding a circle of water-permeable geotextile around the steel mould, hanging the other half of the steel mould, sealing, vibrating and maintaining;

and S4, pouring, solidifying and molding the prefabricated water permeable pile steel frame and the high-toughness concrete 8, and then removing the steel film to obtain the water permeable pile.

In summary, compared with the prior art, the prefabricated water permeable pile is convenient to install according to the depth of the prefabricated water permeable pile to be driven into a soil layer through the arrangement of the cylindrical connecting convex blocks 3 at the upper end of the pile body 1, the length of the pile body 1 is extended, the prefabricated water permeable pile is convenient to detach and connect and extend, through the use of the high-toughness concrete 8 in the prefabricated water permeable pile, the prefabricated water permeable pile can be prevented from being excessively deformed or cracked through providing good bending resistance and damage resistance for the pile body 1, the end portion of the pile body 1 can be allowed to horizontally displace to a certain degree, the application range is wider, through the uniform arrangement of the rhombic convex blocks 5 on the pile body 1, the prefabricated water permeable pile can be in full contact with the soil layer, and the use stability and firmness of the prefabricated water permeable pile after being embedded are improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.