Combined foundation pile for river channel construction

Abstract

The utility model relates to a combined foundation pile for river channel construction, and belongs to the technical field of construction basic equipment. Comprising a pile bottom, pile foundation columns, connecting end plates, reinforcing steel bars, a pier column and supporting ring ribs, the adjacent supporting ring ribs are welded and supported on the outer side wall and the inner side wall of the reinforcing steel bars respectively, the outer side of the uppermost pile foundation column is fixedly sleeved with a protective metal sleeve, and the upper portion of the protective metal sleeve is fixedly sleeved with the outer side wall of the lower portion of the pier column. The reinforcing steel bar in the pile foundation column is provided with the supporting ring ribs in the vertical direction, the adjacent supporting ring ribs are welded and supported on the outer side wall and the inner side wall of the reinforcing steel bar respectively, the upper end and the lower end of the reinforcing steel bar are welded and fixed to the upper connecting end plate and the lower connecting end plate, and the pile foundation column is higher in strength and better in durability. The protective metal sleeve is arranged on the outer side of the joint of the pile foundation column and the pier column, the pile foundation column and the pier column can be protected, gravel is better prevented from impacting the pile foundation column and the pier column, safety and quality influences are reduced to the minimum, and the service life of the pile foundation column and the service life of the pier column are prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a river channel construction combined foundation pile and belongs to the technical field of construction foundation equipment. BACKGROUND

[0002] In river channel construction, foundation piles are often used. A foundation pile is a load transfer member that transfers all or part of the load of a structure to the foundation soil and has a certain rigidity and bending resistance. The cross-sectional size of the foundation pile is much smaller than its length. The role of the foundation pile is to transfer the load to the deep soil layer with good bearing capacity to meet the requirements of bearing capacity and settlement. The foundation pile has high bearing capacity and can bear vertical load, horizontal load, uplift load and vibration load. It is the most widely used form of deep foundation.

[0003] The current foundation piles are divided into cast-in-place type and precast concrete type. In the precast concrete foundation pile, a combined structure is often used. Multiple reinforcing steels are arranged in a circular array inside the combined foundation pile. Support ring steels are welded and fixed to the inner side of the reinforcing steels. However, the welding of the support ring steels only on the inner side affects the strength of the foundation pile. In addition, the top of the foundation pile is connected to a pier column. In some areas with turbulent water flow, the gravel in the river water can be impacted to the connection between the foundation pile and the pier column, causing concrete cracks or peeling, thereby exposing the reinforcing steels and affecting the quality of the foundation pile. UTILITY MODEL CONTENT

[0004] The utility model provides a river channel pier anti-collision protection device to solve the problems in the above background technology.

[0005] The utility model relates to a river channel construction combined foundation pile, including pile bottom and not less than two pile foundation columns, the bottom of pile bottom is conical, the both ends of each pile foundation column are fixed with the connecting end plate, each pile foundation column is circular arrayed with multiple reinforcing steels, the top of the uppermost pile foundation column is equipped with the pier column, the reinforcing steel is equipped with multiple support ring steels along the vertical direction, adjacent support ring steels are supported and welded on the outer side wall and the inner side wall of reinforcing steel respectively, the upper and lower ends of reinforcing steel are welded and fixed with the upper and lower connecting end plates, the outer side of the uppermost pile foundation column is fixed with the protection metal cover, the upper portion of protection metal cover is fixed on the lower portion outer side wall of pier column.

[0006] As a preferred, the outer side of reinforcing steel is spirally wound and welded with steel wire, and the strength of pile foundation column is higher.

[0007] As a kind of preferred, the upper outer wall of the uppermost pile foundation column is provided with a positioning ring table, the positioning ring table can be more conveniently and quickly positioned and installed protective metal sleeve, the lower end of the protective metal sleeve is sleeved on the positioning ring table, dovetail type anti-drop grooves are formed on the inner side wall of the protective metal sleeve, the upper outer wall of the uppermost pile foundation column and the outer side wall of the connecting end plate, the top of the anti-drop grooves of the protective metal sleeve extends to the top end face thereof, and the lower anti-drop grooves are filled with a grouting mortar layer, the pier column is a cast-in-place pier column, and the concrete outer side of the cast-in-place pier column extends into the upper anti-drop groove of the protective metal sleeve. The anti-drop grooves can better bond and fix the protective metal sleeve by the grouting mortar layer and the concrete of the cast-in-place pier column, and better prevent the protective metal sleeve from falling off.

[0008] As a kind of preferred, the lower end of the anti-drop groove is provided with a support table, which better supports the grouting mortar layer, and the lower end of the steel bar in the cast-in-place pier column is welded and fixed on the connecting end plate, which cooperates with the protective metal sleeve to make the cast-in-place pier column more stable.

[0009] As a kind of preferred, the top connecting end plate and the top of the pile bottom are each provided with a threaded groove, and the bottom connecting end plate is provided with a threaded column that cooperates with the threaded groove, to facilitate connection and fixation.

[0010] As a kind of preferred, the protective metal sleeve is composed of two metal half sleeves, and the connecting portion of the two metal half sleeves is welded and fixed to be sealed, to facilitate installation of the protective metal sleeve.

[0011] The utility model has the following beneficial effects:

[0012] The reinforcing steel bars in the pile foundation column are provided with a plurality of support ring steels in the vertical direction, adjacent support ring steels are welded and supported on the outer side wall and the inner side wall of the reinforcing steel bars, and the upper and lower ends of the reinforcing steel bars are welded and fixed to the upper and lower connecting end plates, so that the pile foundation column has higher strength, the outer side of the connecting portion of the pile foundation column and the pier column is provided with a protective metal sleeve, the pile foundation column and the pier column can be protected, and the impact of gravel on the pile foundation column and the pier column is better prevented, so that safety and quality influence are reduced to the minimum, and the service life of the pile foundation column and the pier column is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a partial structure schematic diagram of Figure 1 ; Figure 1 ;

[0015] Figure 3 It is a partial structure schematic diagram of Figure 1 ; Figure 2 ;

[0016] Figure 4 It is a top structure schematic diagram of the protective metal sleeve;

[0017] In the diagram: 1. Pile bottom; 2. Connecting end plate; 3. Pile foundation column; 4. Steel wire; 5. Threaded protruding column; 6. Reinforcing steel bar; 7. Supporting ring bar; 8. Grouting mortar layer; 9. Protective metal sleeve; 10. Pier column; 11. Anti-detachment groove; 12. Positioning ring platform; 13. Threaded groove; 14. Supporting platform; 15. Metal half-sleeve. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments.

[0019] Example 1, as Figures 1 to 4 As shown, this utility model is a combined foundation pile for river channel construction, including a pile base 1 and at least two pile columns 3. The bottom of the pile base 1 is conical. Each pile column 3 has a connecting end plate 2 fixed at both ends. Each pile column 3 has multiple reinforcing steel bars 6 arranged in a circular array. The top of the uppermost pile column 3 is provided with a pier 10. The reinforcing steel bars 6 have multiple supporting ring bars 7 along the vertical direction. Adjacent supporting ring bars 7 are welded and supported on the outer and inner side walls of the reinforcing steel bars 6, respectively. The upper and lower ends of the reinforcing steel bars 6 are welded and fixed to the upper and lower connecting end plates 2. A protective metal sleeve 9 is sleeved and fixed on the outer side of the uppermost pile column 3. The upper part of the protective metal sleeve 9 is sleeved and fixed on the lower outer side wall of the pier 10. The protective metal sleeve 9 is made of stainless steel with a steel plate thickness of about 15mm and a length of about 4m. The pile base 1 and the connecting end plate 2 are made of metal materials.

[0020] Before driving the piles, the pile bottom 1 is fixedly connected to the bottom pile column 3. Then, the bottom pile column 3 is lifted with the pile bottom 1 facing down. The pile bottom 1 is pressed into the ground or driven into the ground by hammering. After driving in one pile column 3, the upper pile column 3 is connected with the connecting end plate 2 until the uppermost pile column 3 is driven into the ground. Then, the protective metal sleeve 9 is put on the upper part of the uppermost pile column 3, and then the pier column 10 is poured.

[0021] Example 2: Based on Example 1, steel wire 4 is spirally wound and welded to the outer side of the reinforcing bar 6.

[0022] The uppermost pile column 3 has a positioning ring platform 12 on its upper outer wall. The lower end of the protective metal sleeve 9 is fitted onto the positioning ring platform 12. The inner wall of the protective metal sleeve 9, the upper outer wall of the uppermost pile column 3, and the outer wall of the connecting end plate 2 are all provided with dovetail-shaped anti-detachment grooves 11. The top of the anti-detachment groove 11 of the protective metal sleeve 9 extends to its top end face. The lower anti-detachment groove 11 is filled with a grouting mortar layer 8. The pier column 10 is a cast-in-place pier column. The outer side of the concrete of the cast-in-place pier column extends into the upper anti-detachment groove 11 of the protective metal sleeve 9.

[0023] The lower end of the anti-falling groove 11 is provided with a supporting table 14, and the lower end of the steel bar in the cast-in-place pier column is welded and fixed on the connecting end plate 2.

[0024] The connecting end plate 2 at the top and the top of the pile bottom 1 are both provided with a threaded groove 13, and the connecting end plate 2 at the bottom is provided with a threaded column 5 matched with the threaded groove 13.

[0025] The protective metal sleeve 9 is composed of two metal half sleeves 15, and the connecting part of the two metal half sleeves 15 is welded and fixedly sealed.

[0026] After the uppermost pile foundation column 3 is driven into the ground, a connecting jack is punched on the top of the uppermost connecting end plate 2, then the steel bar of the cast-in-place pier column is inserted into the connecting jack, then welded and fixed, then the steel cage in the cast-in-place pier column is bound, after being bound, the two metal half sleeves 15 are sleeved on the upper part of the uppermost pile foundation column 3, and the lower end of the protective metal sleeve 9 is sleeved on the positioning ring table 12, then the connecting surface of the two metal half sleeves 15 is welded and fixedly sealed, then the anti-falling groove 11 on the outer side wall of the uppermost pile foundation column 3 and the connecting end plate 2 is filled with a layer of grouting mortar 8, then the pouring outer formwork of the cast-in-place pier column is supported, and then the pouring of the cast-in-place pier column is carried out, during the pouring, the concrete of the cast-in-place pier column enters the anti-falling groove 11 in the upper part of the protective metal sleeve 9 and the threaded groove 13 in the connecting end plate 2 at the top.

[0027] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0028] In the description of the present application, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and do not require the present application to be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

Claims

1. A composite foundation pile for river channel construction, comprising a pile base (1) and at least two pile columns (3), wherein the bottom of the pile base (1) is conical, and each pile column (3) has a connecting end plate (2) fixed at both ends, and each pile column (3) contains a circular array of multiple reinforcing steel bars (6), and the top of the uppermost pile column (3) is provided with a pier column (10), characterized in that: The reinforcing steel bars (6) are provided with a plurality of support ring bars (7) in the vertical direction, the adjacent support ring bars (7) are respectively welded and supported on the outer side wall and the inner side wall of the reinforcing steel bars (6), and the upper and lower ends of the reinforcing steel bars (6) are welded and fixed with the upper and lower connecting end plates (2).

2. The combined foundation pile for riverway construction according to claim 1, characterized in that: The outer side of the reinforcing steel bars (6) is spirally wound and welded with the steel wires (4).

3. The combined foundation pile for riverway construction according to claim 1, characterized in that: The upper outer side wall of the uppermost pile foundation column (3) is provided with a positioning ring table (12), the lower end of the protective metal sleeve (9) is sleeved on the positioning ring table (12), the inner side wall of the protective metal sleeve (9), the upper outer side wall of the uppermost pile foundation column (3) and the outer side wall of the connecting end plate (2) are all provided with dovetail type anti-disengagement grooves (11), the top of the anti-disengagement grooves (11) of the protective metal sleeve (9) extends to the top end face thereof, the lower anti-disengagement grooves (11) are filled with a layer of poured mortar (8), the pier column (10) is a cast-in-situ pier column, the concrete outer side of the cast-in-situ pier column extends into the upper anti-disengagement grooves (11) of the protective metal sleeve (9).

4. The combined foundation pile for riverway construction according to claim 3, wherein: The lower end of the anti-disengagement groove (11) is provided with a support table (14), and the lower end of the steel bar in the cast-in-situ pier column is welded and fixed on the connecting end plate (2).

5. The combined foundation pile for riverway construction according to claim 1, characterized in that: The top connecting end plate (2) and the top of the pile bottom (1) are both provided with a threaded groove (13), and the bottom connecting end plate (2) is provided with a threaded convex column (5) matched with the threaded groove (13).

6. The combined foundation pile for riverway construction according to claim 1, characterized in that: The protective metal sleeve (9) is composed of two metal half sleeves (15), and the connection between the two metal half sleeves (15) is sealed by welding.

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