CN209854708U - Underwater concrete bored pile - Google Patents

Abstract

The utility model discloses an underwater concrete drilling bored concrete pile, its main points are: comprises a steel keel, a sleeve and concrete. The sleeve is coaxially and fixedly arranged outside the steel bar keel. The sleeve is sequentially called as a ground base part, a river channel part and a water upper part from top to bottom according to the upper and lower positions of the sleeve. The foundation of the casing is located in the pile hole and the water level is above the highest water level. And pouring concrete to coat the steel bar keels into a cylindrical shape, wherein the outer diameter of the concrete is the same as that of the sleeve. The utility model discloses an underwater concrete drilling bored concrete pile simple structure is equipped with the sleeve pipe outward, and the sleeve pipe will be located the concrete cladding of aquatic part, has improved the quality of becoming the post, and is not only pleasing to the eye, can protect the concrete moreover and be difficult for being destroyed by the water impact, has improved the durability of pier greatly.

Description

Underwater concrete bored pile

Technical Field

The utility model belongs to the technical field of hydraulic engineering, concretely relates to concrete drilling bored concrete pile under water.

Background

Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. Through building hydraulic engineering, just can control rivers, prevent flood disasters to adjust and the distribution of water yield, in order to satisfy people's life and production to the needs of water resource. Hydraulic engineering requires the construction of various types of hydraulic structures, such as dams, dikes, spillways, water gates, water inlets, channels, bridges, etc., to achieve its objectives. The intermediate support structure of a multi-span bridge is called a pier. The pile type pier is formed by extending a bored pile foundation upwards to serve as a pier body of a pier and pouring a cover beam on the top of a pile. One or more piles can be arranged transversely on the pier position, and the pile rows are called pile rows when one pile row is arranged. The method has the advantages of economical material consumption and simple and convenient construction, and is suitable for bridge construction in plain areas. The bridge pier is used as a key stress component of a bridge structure, and the shock resistance and the durability of the bridge pier are always important. At present, the bridge pier mainly adopts a reinforced concrete structure and has the advantages of high structural rigidity, good moldability, good earthquake resistance and the like. But also has the disadvantages of weaker stirrup restraint and weaker shear strength. Pier in the river receives the impact of rivers and floater or the collision of boats and ships in aqueous, and the concrete can receive destruction, leads to inside reinforcing bar to expose, and the reinforcing bar corrodes easily after meeting water to greatly reduced pier's shock resistance, when low water stage water level was lower moreover, the part that receives the destruction exposes outside, has seriously influenced pier's pleasing to the eye.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, what the appearance was pleasing to the eye can resist the underwater concrete bored concrete pile that certain rivers strike the destruction.

Realize the utility model discloses the basic technical scheme of purpose is: the utility model provides an underwater concrete drilling bored concrete pile which structural feature is: comprises a steel keel, a sleeve and concrete. The sleeve is coaxially and fixedly arranged outside the steel bar keel. The sleeve is sequentially called as a ground base part, a river channel part and a water upper part from top to bottom according to the upper and lower positions of the sleeve. The foundation of the casing is located in the pile hole and the water level is above the highest water level. And pouring concrete to coat the steel bar keels into a cylindrical shape, wherein the outer diameter of the concrete is the same as that of the sleeve.

The technical scheme based on the basic technical scheme is as follows: the steel bar keel comprises longitudinal steel bars, transverse steel bars and stirrups. A plurality of longitudinal steel bars are arranged at equal intervals and angles along the circumferential direction of the pier and are arranged to form a cylinder. The transverse reinforcing steel bars are in a ring shape. A plurality of transverse steel bars are arranged in a cylinder surrounded by the longitudinal steel bars at equal intervals along the axial direction of the pier, and the transverse steel bars are fixedly connected with the longitudinal steel bars in a welding mode. The stirrup is around the cylinder that vertical reinforcing bar encloses by 1 reinforcing bar along the pier axial is the heliciform, and the stirrup all welds fixed connection with the contact site of each vertical reinforcing bar.

The technical scheme based on the corresponding technical schemes is as follows: also comprises a connecting column. The spliced pole has the multiunit, and every group all has a plurality of spliced poles. The same group of connecting columns are welded on the steel bar keels at intervals along the circumferential direction of the bridge piers. The connecting column is arranged along the radial direction of the bridge pier in the axial direction and extends outwards out of the cylindrical outline of the steel bar keel. And all the groups of connecting columns are arranged at equal intervals along the axial direction of the pier.

The technical scheme based on the corresponding technical schemes is as follows: the sleeve is made of a metal material with better corrosion resistance. The sleeve is sleeved outside the steel bar keel and fixedly connected with the outer ends of the connecting columns in a welding mode. The length of the foundation portion of the casing is 1 to 3 meters. The length of the river reach of the casing is equal to the depth of the highest water level of the river. The water upper part of the sleeve is 0.5 to 1 meter upwards at the highest water level of the river channel. The lower part of the base of the sleeve is provided with 1 to 4 groups of connecting holes which penetrate through the lower part of the sleeve along the axial direction of the pier. Each group is provided with 3 to 20 connecting holes. And all the connecting holes in the same group are arranged at equal intervals at an angle along the circumferential direction of the pier.

The utility model discloses following beneficial effect has: (1) the utility model discloses an underwater concrete drilling bored concrete pile simple structure is equipped with the sleeve pipe outward, and the sleeve pipe will be located the concrete cladding of aquatic part, has improved the quality of becoming the post, and is not only pleasing to the eye, can protect the concrete moreover and be difficult for being destroyed by the water impact, has improved the durability of pier greatly. (2) The utility model discloses a sleeve pipe of concrete drilling bored concrete pile under water is equipped with ground basal portion, and ground portion buries in the stake hole, is equipped with the connecting hole in the ground portion, fills up the connecting hole after concrete placement, has improved the firm in connection degree between sleeve pipe and concrete and the stake hole greatly, improves anti-shear capacity, resists certain boats and ships collision, is favorable to improving life, guarantees bridge safety, is fit for sandy soil moreover more. (3) The utility model discloses a stirrup is the heliciform by 1 reinforcing bar along the pier axial and centers on outside the cylinder that longitudinal reinforcement encloses, is favorable to improving the structural rigidity of concrete drilling bored concrete pile under water.

Drawings

Fig. 1 is the utility model discloses a reinforced keel and sheathed tube structure of concrete drilling bored concrete pile under water indicate.

Fig. 2 is a schematic view as viewed from the upper right front of fig. 1.

Fig. 3 is an enlarged schematic view of the top view of fig. 1.

Figure 4 is a structural schematic of the rebar keel of figure 1 with the sleeve removed.

Fig. 5 is an enlarged schematic view of the top view of fig. 4.

Fig. 6 is a schematic view as viewed from the upper right front of fig. 4.

Fig. 7 is a schematic view of the underwater concrete cast-in-situ bored pile of the present invention.

The reference numbers in the drawings are:

a steel bar keel 1, a longitudinal steel bar 11, a transverse steel bar 12, a stirrup 13,

a casing 2, a ground base 2-1, a river reach 2-2, a water upper part 2-3, a connecting hole 21,

a connecting column 3 is arranged at the lower part of the frame,

and (4) concrete.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings. The description of the azimuth of the present invention is performed according to the azimuth shown in fig. 1, that is, the up-down direction shown in fig. 1 is the up-down direction of the description, and one side close to the bridge pier axis is called as the inboard, and one side far away from the bridge pier axis is called as the outboard.

It should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are used only for convenience in describing the present invention or simplifying the description, but do not indicate that a particular orientation must be provided.

(example 1)

See fig. 1 to 7, the underwater concrete bored concrete pile of the present invention includes a steel keel 1, a sleeve 2, a connecting column 3 and concrete 4.

Referring to fig. 1 to 7, the steel keel 1 includes longitudinal bars 11, transverse bars 12, and stirrups 13. The longitudinal steel bars 11 and the transverse steel bars 12 are determined in specific numbers according to actual design requirements. The longitudinal steel bars 11 are arranged at equal intervals and angles along the circumferential direction of the pier and are arranged to form a cylinder. The transverse steel bars 12 are circular, and are formed by bending 1 steel bar into a ring shape, and then welding and fixing the end to end. The transverse reinforcing steel bars 12 are arranged in a cylinder surrounded by the longitudinal reinforcing steel bars 11 at equal intervals along the axial direction of the pier, and the transverse reinforcing steel bars 12 are fixedly connected with the longitudinal reinforcing steel bars 11 in a welding mode. The stirrup 13 is spirally wound around the column surrounded by the longitudinal steel bars 11 along the axial direction of the pier by 1 steel bar, and the contact parts of the stirrup 13 and each longitudinal steel bar 11 are fixedly connected by welding.

The spliced pole 3 has a plurality of group, and there are a plurality of spliced poles in every group, and the quantity of spliced pole 3 of this embodiment every group is half of the quantity of longitudinal reinforcement 11. The same group of connecting columns 3 are welded on the corresponding longitudinal steel bars 11 at intervals along the circumferential direction of the bridge pier. The connecting column 3 is arranged along the radial direction of the pier in the axial direction and extends outwards out of a cylindrical outline surrounded by the longitudinal steel bars 11. The connecting columns 3 are arranged at equal intervals along the axial direction of the pier.

The sleeve 2 is made of metal materials with good corrosion resistance, such as aluminum alloy or stainless steel, and the sleeve 2 in the embodiment is formed by winding a rectangular stainless steel plate into a cylinder and welding and fixing the rectangular stainless steel plate end to end. The sleeve 2 is coaxially sleeved outside the steel bar keel 1 and fixedly connected with the outer ends of the connecting columns 3 in a welding mode. The casing 2 is sequentially called as a ground base part 2-1, a river reach part 2-2 and an upper water part 2-3 from top to bottom according to the upper position and the lower position of the casing. The length of the ground base 2-1 of the casing 2 is 1 to 3 meters, 2 meters in this embodiment. The length of the river reach 2-2 of the casing 2 is equal to the depth of the highest water level of the river. The water upper part 2-3 of the sleeve is 0.5 m to 1 m upward of the highest water level of the river channel, and the length of the sleeve is 1 m in the embodiment. The lower ground base 2-1 of the casing 2 is provided with 1 to 4 sets of connection holes 21 penetrating through the inside and outside of the casing in the axial direction of the pier. Each group is provided with 3 to 20 connecting holes 21, 2 groups in this embodiment, and 8 connecting holes 21 in each group. The connecting holes 21 of the same group are arranged at equal intervals in the circumferential direction of the pier.

And pouring concrete 4 to coat the steel bar keel 1 into a cylindrical shape, wherein the outer diameter of the concrete 4 is the same as the inner diameter of the sleeve 2.

The utility model discloses a during construction of concrete drilling bored concrete pile under water: firstly, inserting the foundation 2-1 of the casing 2 into a pile hole of a river channel, and correspondingly arranging the steel bar keel 1 in the foundation 2-1 and the steel bar keel 1 below the foundation 2-1 in the pile hole of the river channel. And (3) placing the water upper part 2-3 of the sleeve 2 on the highest water level of the river channel, and then pouring concrete to form the underwater concrete cast-in-situ bored pile. The water level change of the river channel is within the range of 2-2 of the river reach of the sleeve 2, so that the sleeve 2 can effectively protect the concrete 4 and the steel keel 1 which are positioned in the sleeve, and the shock resistance, the durability and the shear strength of the underwater concrete cast-in-situ bored pile are greatly improved.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (4)

1. The utility model provides an underwater concrete drilling bored concrete pile which characterized in that: comprises a steel bar keel, a sleeve and concrete; the sleeve is coaxially and fixedly arranged outside the steel bar keel; the sleeve is sequentially called as a ground base part, a river channel part and an above-water part from top to bottom according to the upper and lower positions of the sleeve; the foundation part of the sleeve is positioned in the pile hole, and the water part is positioned above the highest water level; and pouring concrete to coat the steel bar keels into a cylindrical shape, wherein the outer diameter of the concrete is the same as that of the sleeve.

2. The underwater concrete cast-in-situ pile as claimed in claim 1, wherein: the steel bar keel comprises longitudinal steel bars, transverse steel bars and stirrups; a plurality of longitudinal steel bars are arranged at equal intervals at an angle along the circumferential direction of the pier and are arranged to form a cylinder; the transverse steel bar is in a ring shape; a plurality of transverse steel bars are arranged in a cylinder surrounded by the longitudinal steel bars at equal intervals along the axial direction of the bridge pier, and the transverse steel bars are fixedly connected with the longitudinal steel bars in a welding manner; the stirrup is around the cylinder that vertical reinforcing bar encloses by 1 reinforcing bar along the pier axial is the heliciform, and the stirrup all welds fixed connection with the contact site of each vertical reinforcing bar.

3. The underwater concrete cast-in-situ pile as claimed in claim 1, wherein: the connecting column is also included; the connecting columns are provided with a plurality of groups, and each group is provided with a plurality of connecting columns; the same group of connecting columns are welded on the steel bar keels at intervals along the circumferential direction of the bridge piers; the connecting column is arranged along the radial direction of the bridge pier in the axial direction and extends outwards out of the cylindrical outline of the steel bar keel; and all the groups of connecting columns are arranged at equal intervals along the axial direction of the pier.

4. The underwater concrete cast-in-situ pile as claimed in claim 3, wherein: the sleeve is made of a metal material with better corrosion resistance; the sleeve is sleeved outside the steel bar keel and is fixedly connected with the outer end of each connecting column in a welding manner; the length of the foundation part of the casing is 1 to 3 meters; the length of the river reach part of the casing is equal to the water depth of the highest water level of the river; the water upper part of the sleeve is 0.5 to 1 meter upwards from the highest water level of the river channel; the lower part ground base of the sleeve is provided with 1 to 4 groups of connecting holes which penetrate through the inner part and the outer part of the sleeve along the axial direction of the pier; each group is provided with 3 to 20 connecting holes; and all the connecting holes in the same group are arranged at equal intervals at an angle along the circumferential direction of the pier.