Expanded-head pile bearing hoop and construction method thereof

Abstract

The invention discloses an expanded-head pile load-bearing hoop and a construction method thereof, and relates to the technical field of load-bearing hoop construction. The expanded-head pile load-bearing hoop comprises a hoop mechanism and a reinforcing mechanism; the hoop mechanism comprises a first hoop assembly, a reinforcing cover plate, a grouting pipe, a supporting square pipe and a second hoop assembly. A glue injection pipe, a sealing plate, a second reinforcing block, a second connecting strip and a first connecting rod fix the semi-hoop ring and the reinforcing supporting strip, and a first limiting block, a second limiting block, a limiting rod, a limiting pipe, a first spring and a second spring fix the reinforcing supporting strip and the second reinforcing seat. The first reinforcing blocks, the first reinforcing seats, the second reinforcing ribs, the reinforcing rings and the supporting bottom plates fix the supporting square pipes to the outer hoops, the firmness of connection between the semi-hoop rings and the outer hoops is improved, and therefore the bearing strength of the bearing hoop is improved, the multiple sets of semi-hoop rings are stably connected with the stand column, and the phenomenon that the semi-hoop rings are loaded and slip is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of load-bearing hoop construction, and in particular is an enlarged head pile load-bearing hoop and a construction method thereof. Background Art

[0002] A clamp is a device used to fix and connect pipes, rods or other cylindrical objects. It usually consists of two semicircular clips, which are connected together by bolts or other fasteners to tightly hold the target object. The load-bearing clamp is a metal device specially designed to withstand large loads and fix objects. It is usually made of high-strength steel and has good bearing capacity and stability. The clamp method is commonly used in the construction of inter-column tie beams and cap beams of bridge piers.

[0003] The existing enlarged head pile load-bearing clamp and its construction method have certain disadvantages. When in use, the existing enlarged head pile load-bearing clamp and its construction method usually adopt a steel plate clamp or add a flexible material with large friction resistance in the middle to contact the column, and the torque applied by the high-strength bolts on the clamp is converted into pressure of the clamp on the column, and the friction force generated by the contact area and friction coefficient between the two balances the vertical load transmitted from the top of the clamp. Due to the differences in roundness, verticality and flatness of the column, there is still a gap between the clamp and the column after the force is applied, and it cannot fit tightly, making it impossible for the load-bearing clamp to be stably and firmly connected to the column, resulting in the possibility of slippage when the clamp is overloaded, thereby reducing the quality of construction and failing to meet people's needs. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes an enlarged head pile load-bearing clamp and a construction method thereof.

[0005] A load-bearing clamp for an enlarged head pile and a construction method thereof are applied to a column, wherein a concrete floor is provided at the bottom of the column, comprising a clamp mechanism arranged at the bottom of the column and a reinforcement mechanism at the upper end of the clamp mechanism and fixedly connected to the column; the clamp mechanism comprises a first clamp assembly arranged on the concrete floor and connected to the column, a reinforcement cover plate detachably arranged at the upper end of the first clamp assembly and connected to the second clamp mechanism, and a grouting pipe symmetrically arranged on the outside of the first clamp assembly; the clamp mechanism also comprises supporting square tubes symmetrically arranged on the upper end surface of the reinforcement cover plate and connected to the outer surface of the column, and a plurality of groups of second clamp assemblies fixedly mounted on the supporting square tubes and connected to the reinforcement mechanism.

[0006] As a further solution of the present invention: the first clamp assembly includes an outer clamp set at the bottom of the column and fixed with bolts to the concrete floor, and two groups of inner clamps set on the inner side of the outer clamp and fixed with bolts to the column, the outer surfaces of the two groups of inner clamps are symmetrically provided with first connecting strips fixed by bolts, the outer clamp is a frustum structure with a larger top and a smaller bottom, the outer wall of the outer clamp is provided with a lifting ring in a circular array, and the outer clamp can be lifted to the column through the lifting ring, the two groups of inner clamps are fixed with the first connecting strips by several groups of bolts so as to fit with the outer wall of the column, the outer surface of the inner clamp is evenly spaced from top to bottom with several groups of fastening bolts fixed to the column, and the upper end surface of the reinforcement cover is provided with several groups of structural bolts fixed to the outer clamp in a circular array.

[0007] As a further solution of the present invention: the second clamp assembly includes a half clamp ring arranged on the inner side of the supporting square tube, a second connecting strip symmetrically arranged on the half clamp ring, and several groups of first connecting rods symmetrically arranged on the second connecting strip and detachably fixing the two groups of half clamp rings, the inner side surface of the second connecting strip is fitted, and the second connecting strip is provided with several groups of first connecting holes connected to the first connecting rod, and the half clamp ring is fixed to the column through the second connecting strip and the first connecting rod.

[0008] As a further solution of the present invention: the inner side surface of the supporting square tube and the inner side surface of the half clamp ring are both arc-shaped and fit with the outer wall of the column, the bottom end of the supporting square tube is provided with a supporting bottom plate connected to the reinforcement cover plate, and a plurality of groups of steel bars are vertically arranged inside the supporting square tube, and the plurality of groups of steel bars can improve the overall strength of the supporting square tube by solidifying with cement.

[0009] As a further solution of the present invention: the reinforcement mechanism includes several groups of first reinforcement seats symmetrically arranged on the inner wall of the outer hoop, first reinforcement blocks vertically arranged on the lower end surface of the support base plate and plugged into the first reinforcement seats, and first reinforcement grooves respectively opened on the inner side surface of the first reinforcement seat and on both sides of the outer surface of the first reinforcement block, the upper end surface of the reinforcement cover plate is provided with several groups of through grooves corresponding to the first reinforcement blocks, the first reinforcement seats and the first reinforcement grooves on the first reinforcement blocks are fixed by injecting cement slurry, and the first reinforcement ribs can improve the stability of the connection between the first reinforcement seat and the first reinforcement block, thereby improving the firmness of the connection between the outer hoop and the support base plate; wherein, several groups of first reinforcement ribs extending into the first reinforcement grooves in the first reinforcement seat are vertically arranged on the inner side surface of the first reinforcement groove on the first reinforcement block; the second reinforcement rib extending into the outer hoop is arranged at the inner middle position of the support square tube, and the inner top surface of the reinforcement cover plate is provided with a reinforcement ring matching the second reinforcement rib, and the second reinforcement rib can improve the firmness of the connection between the support square tube and the outer hoop through the reinforcement ring.

[0010] As a further solution of the present invention: the reinforcement mechanism also includes a plurality of reinforcement members arranged in a circular array on the outer surface of the inner clamp and a plurality of first reinforcement rods vertically arranged on the inner top surface of the reinforcement cover plate and plugged into the reinforcement members, and the reinforcement members are connected to the first reinforcement rods in combination with cement slurry to improve the firmness of the connection between the inner clamp and the reinforcement cover plate.

[0011] As a further solution of the present invention: the reinforcement mechanism also includes a reinforcement support strip symmetrically arranged on the outside of the column and connected to the half-hoop ring, and a second reinforcement seat that is detachably mounted on the upper end surface of the reinforcement cover plate and supports the reinforcement support strip; wherein the reinforcement mechanism also includes a plurality of groups of second reinforcement blocks arranged on both sides of the outer surface of the second connecting strip and a reinforcement groove opened in the reinforcement support strip and plugged into the second reinforcement block, the reinforcement support strip is connected to the second reinforcement block through the reinforcement groove so that the second connecting strip is plugged in, thereby connecting to the half-hoop ring, and both sides of the outer surface of the reinforcement support strip are provided with a sealing plate for sealing the reinforcement groove, and the outer surface of the reinforcement support strip is provided with a glue injection tube connected to the reinforcement groove, and the glue injection tube fixes the sealing plate, the reinforcement support strip, the half-hoop ring and the second reinforcement block by injecting solidifying glue into the interior of the reinforcement groove, and the solidifying glue is set to one of epoxy resin glue or acrylate glue.

[0012] As a further solution of the present invention: the reinforcement mechanism also includes a first limit block symmetrically arranged at the bottom end of the reinforcement support bar, a second limit block movably and symmetrically arranged inside the second reinforcement seat and limiting the first limit block, a limit rod vertically arranged on one side of the second limit block and a limit tube movably connected to the limit rod, and the second reinforcement seat is provided with a limit hole corresponding to the first limit block; wherein, the bottom end of the first limit block is an inverted frustum structure, the first limit block is provided with a limit groove which is clamped with the second limit block, and the inner side surface of the second limit block is set to an arc surface which fits the limit groove; the limit rod is sleeved with a first spring connected to the limit tube, and the inside of the limit tube is provided with a second spring connected to the limit rod, and the first spring and the second spring can improve the firmness of the connection between the first limit block and the second limit block.

[0013] As a further solution of the present invention: the reinforcement mechanism also includes a second reinforcement rod arranged at the bottom end of the second reinforcement seat and extending into the outer clamp, a second connecting rod vertically arranged at the bottom end of the second reinforcement rod and a reinforcement cover ring connected to the bottom end of the second connecting rod, the cross-sections of the second reinforcement rod and the reinforcement cover ring are both circular structures, the diameters of the second reinforcement rod and the reinforcement cover ring are the same, the reinforcement cover plate is provided with through holes corresponding to the second reinforcement rod and the reinforcement cover ring, the outer surface of the second reinforcement rod is in a circular array with several groups of inclined holes, the outer surface of the second reinforcement rod is set to a non-smooth surface, and the upper end of the reinforcement cover ring is provided with a circular opening, and the cement slurry that can be injected into the reinforcement cover ring and the inclined holes can improve the firmness of the connection between the second reinforcement seat and the outer clamp.

[0014] As a further solution of the present invention: a construction method for enlarging the head pile load-bearing clamp, the specific steps are as follows:

[0015] Step A: Customize the first clamp assembly, the second clamp assembly and the reinforcement mechanism according to the size of the column;

[0016] Step B: Install the outer hoop, the inner hoop and the reinforcement cover plate on the column in sequence, and install the second reinforcement seat on the upper end of the reinforcement cover plate;

[0017] Step C: Install the supporting square tube and the half hoop ring onto the column and align and fix the supporting base plate at the bottom end of the supporting square tube with the reinforcement cover plate;

[0018] Step D: plug the reinforcement support bar into the half hoop ring, fix the reinforcement support bar to the second reinforcement seat through the first limit block and the second limit block, seal the closed plate with bolts, inject solidifying glue into the reinforcement support bar through the glue injection tube to fix the reinforcement support bar to the half hoop ring, and weld and fix the connection between the reinforcement support bar and the half hoop ring;

[0019] Step E: inject cement slurry into the interior of the supporting square tube, and inject cement slurry into the interior of the outer hoop through the grouting pipe to seal the internal structure of the outer hoop;

[0020] In step A, the outer hoop is sleeved onto the column and fixed to the concrete floor by bolts, the inner hoop is installed on the column by several sets of fastening bolts, and several sets of first connecting strips are fixed by bolts, and the second reinforcement rod and the reinforcement cover ring are inserted into the inner part of the outer hoop through the reinforcement cover plate;

[0021] In step C, align the supporting square tube and the supporting bottom plate with the reinforcement cover plate, so that the first reinforcement block is inserted into the first reinforcement seat, the second reinforcement rib is inserted into the reinforcement ring, the first reinforcement rod is inserted into the reinforcement member, the two groups of half hoop rings are fitted, the two groups of second connecting strips are connected, and the two groups of second connecting strips are fixed by the first connecting rod;

[0022] In step E, cement slurry is injected into the grouting pipe to fix the first reinforcement block to the first reinforcement seat, the second reinforcement rib to the reinforcement ring, the first reinforcement rod to the reinforcement member, the second reinforcement rod to the reinforcement cover ring, and the reinforcement cover plate, the outer hoop, the inner hoop and the structure between the outer hoop and the inner hoop form a whole.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention provides a clamp mechanism and a reinforcement mechanism, wherein the outer clamp, the inner clamp and the reinforcement cover plate are connected to the column; the injection tube, the sealing plate, the second reinforcement block, the second connecting strip and the first connecting rod fix the half clamp ring and the reinforcement support strip; the first limit block, the second limit block, the limit rod, the limit tube, the first spring and the second spring fix the reinforcement support strip and the second reinforcement seat, thereby ensuring that a plurality of groups of half clamp rings are stably connected to the column and avoiding the half clamp ring from slipping under load; the first reinforcement block, the first reinforcement seat, the second reinforcement rib, the reinforcement ring and the support bottom plate fix the supporting square tube to the outer clamp; the first reinforcement rod and the reinforcement member fix the reinforcement cover plate and the inner clamp; the second reinforcement rod, the second connecting rod and the reinforcement cover ring fix the second reinforcement seat and the outer clamp, thereby improving the firmness of the connection between the half clamp ring and the outer clamp, thereby improving the bearing strength of the load-bearing clamp, reducing the construction difficulty, reducing the labor intensity of the staff, and improving the safety of the construction operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a partial structural diagram of the clamp mechanism and the reinforcement mechanism in the present invention.

[0027] Figure 3 This is a top view of the structure of the first clamp assembly in the present invention.

[0028] Figure 4 It is a partial structural diagram of the half hoop ring and the second connecting strip in the present invention.

[0029] Figure 5 It is a partial structural diagram of the inner hoop and the reinforcement member in the present invention.

[0030] Figure 6 It is a partial structural diagram of the first reinforcement block and the first reinforcement rib in the present invention.

[0031] Figure 7 It is a partial structural diagram of the reinforcement mechanism in the present invention.

[0032] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle.

[0033] Fig. 9 It is a partial structural diagram of the second reinforcing rib and the reinforcing ring in the present invention.

[0034] Fig.10 The present invention is a flowchart of the construction method of the enlarged head pile load-bearing clamp.

[0035] In the figure: 1, column; 2, reinforcement cover plate; 3, supporting square tube; 4, outer hoop; 5, inner hoop; 6, first connecting strip; 7, half hoop ring; 8, second connecting strip; 9, first connecting rod; 10, supporting bottom plate; 11, steel bar; 12, first reinforcement seat; 13, first reinforcement block; 14, first reinforcement groove; 15, first reinforcement rib; 16, second reinforcement rib; 17, reinforcement ring; 18, reinforcement piece; 19. Reinforcement support bar; 20. Second reinforcement seat; 21. Second reinforcement block; 22. Sealing plate; 23. Glue injection tube; 24. First limit block; 25. Second limit block; 26. Limit rod; 27. Limit tube; 28. First spring; 29. ​​Second spring; 30. First reinforcement rod; 31. Second reinforcement rod; 32. Second connecting rod; 33. Reinforcement cover ring; 34. Inclined hole; 35. Grouting tube. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] See also Figure 1 - Fig. 9 The present application provides an enlarged head pile load-bearing clamp and a construction method thereof, which are applied to a column 1, and a concrete floor is provided at the bottom of the column 1, and the bottom end of the column 1 extends into the ground, including a clamp mechanism arranged at the bottom of the column 1 and a reinforcement mechanism at the upper end of the clamp mechanism and fixedly connected to the column 1; the clamp mechanism includes a first clamp assembly arranged on the concrete floor and connected to the column 1, a reinforcement cover plate 2 detachably arranged at the upper end of the first clamp assembly and connected to the second clamp mechanism, and a grouting pipe 35 symmetrically arranged on the outside of the first clamp assembly; the clamp mechanism also includes a supporting square tube 3 symmetrically arranged on the upper end surface of the reinforcement cover plate 2 and connected to the outer surface of the column 1, and a plurality of groups of second clamp assemblies fixedly mounted on the supporting square tube 3 and connected to the reinforcement mechanism.

[0039] The first clamp assembly in the present invention includes an outer clamp 4 which is set at the bottom of the column 1 and fixed with bolts to the concrete floor, and two groups of inner clamps 5 which are set on the inner side of the outer clamp 4 and fixed with bolts to the column 1. The outer surfaces of the two groups of inner clamps 5 are symmetrically provided with first connecting strips 6 fixed by bolts. The outer clamp 4 is a frustum structure with a larger top and a smaller bottom. The outer wall of the outer clamp 4 is provided with a lifting ring in a circular array. The outer clamp 4 can be lifted to the column 1 through the lifting ring. The two groups of inner clamps 5 are fixed with the first connecting strips 6 by several groups of bolts so as to fit with the outer wall of the column 1. Several groups of fastening bolts fixedly connected to the column 1 are installed at equal intervals from top to bottom on the outer surface of the inner clamp 5. The upper end surface of the reinforcement cover plate 2 is provided with several groups of structural bolts fixedly connected to the outer clamp 4 in a circular array.

[0040] The second clamp assembly in the present invention includes a half clamp ring 7 arranged on the inner side of the supporting square tube 3, a second connecting strip 8 symmetrically arranged on the half clamp ring 7, and several groups of first connecting rods 9 symmetrically arranged on the second connecting strip 8 and detachably fixing the two groups of half clamp rings 7. The inner side surface of the second connecting strip 8 is fitted, and the second connecting strip 8 is provided with several groups of first connecting holes connected to the first connecting rod 9. The half clamp ring 7 is fixed to the column 1 through the second connecting strip 8 and the first connecting rod 9.

[0041] In the present invention, the inner side surfaces of the supporting square tube 3 and the inner side surfaces of the half clamp ring 7 are both arc-shaped and fit with the outer wall of the column 1. The bottom end of the supporting square tube 3 is provided with a supporting bottom plate 10 connected to the reinforcing cover plate 2. Several groups of steel bars 11 are vertically arranged inside the supporting square tube 3. The several groups of steel bars 11 can improve the overall strength of the supporting square tube 3 by solidifying with cement.

[0042] The reinforcing mechanism of the present invention includes a plurality of first reinforcing seats 12 symmetrically arranged on the inner wall of the outer hoop 4, a first reinforcing block 13 vertically arranged on the lower end surface of the supporting base plate 10 and plugged into the first reinforcing seat 12, and first reinforcing grooves 14 respectively opened on the inner side surface of the first reinforcing seat 12 and on both sides of the outer surface of the first reinforcing block 13. The upper end surface of the reinforcing cover plate 2 is provided with a plurality of through grooves corresponding to the first reinforcing block 13. The first reinforcing seat 12 and the first reinforcing grooves 14 on the first reinforcing block 13 are fixed by injecting cement slurry. The first reinforcing rib 15 can improve the first reinforcing seat 12 and the first The stability of the connection between the reinforcement blocks 13 is improved, thereby improving the firmness of the connection between the outer clamp 4 and the supporting base plate 10; wherein, a plurality of groups of first reinforcement ribs 15 extending into the first reinforcement groove 14 in the first reinforcement seat 12 are vertically arranged on the inner side surface of the first reinforcement groove 14 on the first reinforcement block 13; a second reinforcement rib 16 extending into the outer clamp 4 is arranged at the middle position of the inner side of the supporting square tube 3, and a reinforcement ring 17 matching the second reinforcement rib 16 is arranged on the inner top surface of the reinforcement cover plate 2, and the second reinforcement rib 16 can improve the firmness of the connection between the supporting square tube 3 and the outer clamp 4 through the reinforcement ring 17.

[0043] The reinforcement mechanism in the present invention also includes a plurality of groups of reinforcement members 18 arranged in a circular array on the outer surface of the inner hoop 5 and a plurality of groups of first reinforcement rods 30 vertically arranged on the inner top surface of the reinforcement cover plate 2 and plugged into the reinforcement members 18. The connection between the reinforcement members 18 and the first reinforcement rods 30 and the cement slurry can improve the firmness of the connection between the inner hoop 5 and the reinforcement cover plate 2.

[0044] The reinforcement mechanism in the present invention also includes a reinforcement support bar 19 symmetrically arranged on the outside of the column 1 and connected to the half-hoop ring 7, and a second reinforcement seat 20 detachably mounted on the upper end surface of the reinforcement cover plate 2 and supporting the reinforcement support bar 19; wherein the reinforcement mechanism also includes a plurality of groups of second reinforcement blocks 21 arranged on both sides of the outer surface of the second connecting bar 8 and a reinforcement groove opened in the reinforcement support bar 19 and plugged into the second reinforcement block 21, the reinforcement support bar 19 is connected to the second reinforcement block 21 through the reinforcement groove so that the second connecting bar 8 is plugged in, thereby connecting to the half-hoop ring 7, and both sides of the outer surface of the reinforcement support bar 19 are provided with a sealing plate 22 for sealing the reinforcement groove, and the outer surface of the reinforcement support bar 19 is provided with a glue injection tube 23 connected to the reinforcement groove, and the glue injection tube 23 injects solidifying glue into the interior of the reinforcement groove, thereby fixing the sealing plate 22, the reinforcement support bar 19, the half-hoop ring 7 and the second reinforcement block 21, and the solidifying glue is set to be one of epoxy resin glue or acrylate glue.

[0045] The reinforcement mechanism in the present invention also includes a first limit block 24 symmetrically arranged at the bottom end of the reinforcement support strip 19, a second limit block 25 movably and symmetrically arranged inside the second reinforcement seat 20 and limiting the first limit block 24, a limit rod 26 vertically arranged on one side of the second limit block 25, and a limit tube 27 movably connected to the limit rod 26, and the second reinforcement seat 20 is provided with a limit hole corresponding to the first limit block 24; wherein, the bottom end of the first limit block 24 is an inverted frustum structure, the first limit block 24 is provided with a limit groove engaged with the second limit block 25, and the inner side surface of the second limit block 25 is set as an arc surface that fits the limit groove; a first spring 28 connected to the limit tube 27 is sleeved on the limit rod 26, and a second spring 29 connected to the limit rod 26 is arranged inside the limit tube 27, and the first spring 28 and the second spring 29 can improve the firmness of the connection between the first limit block 24 and the second limit block 25.

[0046] The reinforcement mechanism in the present invention also includes a second reinforcement rod 31 arranged at the bottom end of the second reinforcement seat 20 and extending into the outer clamp 4, a second connecting rod 32 vertically arranged at the bottom end of the second reinforcement rod 31 and a reinforcement cover ring 33 connected to the bottom end of the second connecting rod 32. The cross-sections of the second reinforcement rod 31 and the reinforcement cover ring 33 are both circular structures, and the diameters of the second reinforcement rod 31 and the reinforcement cover ring 33 are the same. Through holes corresponding to the second reinforcement rod 31 and the reinforcement cover ring 33 are opened on the reinforcement cover plate 2. The outer surface of the second reinforcement rod 31 is in a circular array with a plurality of groups of inclined holes 34. The outer surface of the second reinforcement rod 31 is set to a non-smooth surface. The upper end of the reinforcement cover ring 33 is provided with a circular opening. The cement slurry that can be injected into the reinforcement cover ring 33 and the inclined holes 34 can improve the firmness of the connection between the second reinforcement seat 20 and the outer clamp 4.

[0047] In summary, the outer hoop 4 and the inner hoop 5 are installed on the column 1, the reinforcement cover plate 2 is installed on the outer hoop 4, the supporting square tube 3 and the half hoop ring 7 are installed on the column 1, the first reinforcement block 13 is connected to the first reinforcement seat 12, the second reinforcement rib 16 is connected to the reinforcement ring 17, the first reinforcement rod 30 is connected to the reinforcement member 18, the second reinforcement seat 20 is installed on the reinforcement cover plate 2, the first limit block 24 and the second limit block 25 fix the reinforcement support bar 19 and the second reinforcement seat 20, the reinforcement support bar 19 is fixed to the half hoop ring 7 through the glue injection tube 23, and the outer hoop 4, the inner hoop 5 and their internal structures are fixed through the grouting tube 35.

[0048] Embodiment 2

[0049] Reference Figure 1 - Fig.10 , which is the second embodiment of the present invention, wherein a construction method of enlarging the head pile load-bearing clamp in the present invention comprises the following specific steps:

[0050] Step A: Customizing the first clamp assembly, the second clamp assembly and the reinforcement mechanism according to the size of the column 1;

[0051] Step B: Install the outer hoop 4, the inner hoop 5 and the reinforcement cover plate 2 on the column 1 in sequence, and install the second reinforcement seat 20 on the upper end of the reinforcement cover plate 2;

[0052] Step C: Install the supporting square tube 3 and the half hoop ring 7 onto the column 1 and align and fix the supporting bottom plate 10 at the bottom end of the supporting square tube 3 with the reinforcing cover plate 2;

[0053] Step D: plug the reinforcement support bar 19 into the half hoop ring 7, fix the reinforcement support bar 19 to the second reinforcement seat 20 through the first limit block 24 and the second limit block 25, seal the sealing plate 22 with bolts, inject solidifying glue into the reinforcement support bar 19 through the glue injection tube 23 to fix the reinforcement support bar 19 to the half hoop ring 7, and weld and fix the connection between the reinforcement support bar 19 and the half hoop ring 7;

[0054] Step E: inject cement slurry into the interior of the supporting square tube 3, and inject cement slurry into the interior of the outer hoop 4 through the grouting pipe 35 to seal the internal structure of the outer hoop 4;

[0055] In step A, the outer hoop 4 is sleeved onto the column 1 and fixed to the concrete floor by bolts, the inner hoop 5 is installed on the column 1 by several sets of fastening bolts, and several sets of first connecting strips 6 are fixed by bolts, and the second reinforcement rod 31 and the reinforcement cover ring 33 are inserted into the inner part of the outer hoop 4 through the reinforcement cover plate 2;

[0056] In step C, the supporting square tube 3 and the supporting bottom plate 10 are aligned with the reinforcing cover plate 2, so that the first reinforcing block 13 is inserted into the first reinforcing seat 12, the second reinforcing rib 16 is inserted into the reinforcing ring 17, the first reinforcing rod 30 is inserted into the reinforcing member 18, the two groups of half hoop rings 7 are fitted, the two groups of second connecting strips 8 are connected, and the two groups of second connecting strips 8 are fixed by the first connecting rod 9;

[0057] In step E, cement slurry is injected into the grouting pipe 35 to fix the first reinforcement block 13 to the first reinforcement seat 12, the second reinforcement rib 16 to the reinforcement ring 17, the first reinforcement rod 30 to the reinforcement member 18, the second reinforcement rod 31 and the reinforcement cover ring 33, so that the reinforcement cover plate 2, the outer hoop 4, the inner hoop 5 and the structure between the outer hoop 4 and the inner hoop 5 form a whole.

[0058] Embodiment 3

[0059] Reference Figure 1 - Fig.10 , combining Example 1 and Example 2 to obtain this embodiment.

[0060] The outer hoop 4, the inner hoop 5 and the reinforcement cover plate 2 are connected to the column 1, the first reinforcement block 13, the first reinforcement seat 12, the second reinforcement rib 16, the reinforcement ring 17 and the support base plate 10 fix the supporting square tube 3 to the outer hoop 4, the first reinforcement rod 30 and the reinforcement member 18 fix the reinforcement cover plate 2 and the inner hoop 5, the second reinforcement rod 31, the second connecting rod 32 and the reinforcement cover ring 33 fix the second reinforcement seat 20 and the outer hoop 4, the glue injection tube 23, the closed plate 22, the second reinforcement block 21, the second connecting strip 8 and the first connecting rod 9 fix the half hoop ring 7 and the reinforcement support strip 19, the first limit block 24, the second limit block 25, the limit rod 26, the limit tube 27, the first spring 28 and the second spring 29 fix the reinforcement support strip 19 and the second reinforcement seat 20.

[0061] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An enlarged head pile load-bearing clamp, applied to a column (1), the bottom of the column (1) is provided with a concrete floor, characterized in that: include: A clamping mechanism disposed at the bottom of the column (1) and a reinforcing mechanism at the upper end of the clamping mechanism and fixedly connected to the column (1); The clamp mechanism comprises a first clamp assembly arranged on the concrete floor and connected to the column (1), a reinforcement cover plate (2) detachably arranged at the upper end of the first clamp assembly and connected to the second clamp mechanism, and a grouting pipe (35) symmetrically arranged outside the first clamp assembly; The clamp mechanism further comprises a supporting square tube (3) symmetrically arranged on the upper end surface of the reinforcing cover plate (2) and connected to the outer surface of the column (1), and a plurality of groups of second clamp assemblies fixedly mounted on the supporting square tube (3) and connected to the reinforcing mechanism.

2. The enlarged head pile load-bearing clamp according to claim 1, characterized in that: The first clamp assembly comprises an outer clamp (4) which is set at the bottom of the column (1) and fixed to the concrete floor with bolts, and two groups of inner clamps (5) which are set on the inner side of the outer clamp (4) and fixed to the column (1) with bolts, and the outer surfaces of the two groups of inner clamps (5) are symmetrically provided with first connecting strips (6) fixed by bolts, and the outer clamp (4) is in the shape of a frustum with a larger upper part and a smaller lower part.

3. The enlarged head pile load-bearing clamp according to claim 2, characterized in that: The second clamp assembly comprises a half clamp ring (7) arranged on the inner side of the supporting square tube (3), a second connecting strip (8) symmetrically arranged on the half clamp ring (7), and a plurality of groups of first connecting rods (9) symmetrically arranged on the second connecting strip (8) and detachably fixing two groups of half clamp rings (7).

4. The enlarged head pile load-bearing clamp according to claim 3, characterized in that: The inner side surface of the supporting square tube (3) and the inner side surface of the half hoop ring (7) are both arc-shaped and fit with the outer wall of the column (1); the bottom end of the supporting square tube (3) is provided with a supporting bottom plate (10) connected to the reinforcing cover plate (2); and a plurality of groups of steel bars (11) are vertically arranged inside the supporting square tube (3).

5. The enlarged head pile load-bearing clamp according to claim 4, characterized in that: The reinforcement mechanism comprises a plurality of first reinforcement seats (12) symmetrically arranged on the inner wall of the outer hoop (4), a first reinforcement block (13) vertically arranged on the lower end surface of the support base plate (10) and plugged into the first reinforcement seat (12), and first reinforcement grooves (14) respectively arranged on the inner side surface of the first reinforcement seat (12) and on both sides of the outer surface of the first reinforcement block (13); Wherein, a plurality of groups of first reinforcing ribs (15) extending into the first reinforcing groove (14) in the first reinforcing seat (12) are vertically arranged on the inner side surface of the first reinforcing groove (14) on the first reinforcing block (13); A second reinforcing rib (16) extending into the outer clamp (4) is provided at the middle position of the inner side of the supporting square tube (3), and a reinforcing ring (17) matching the second reinforcing rib (16) is provided on the inner top surface of the reinforcing cover plate (2).

6. The enlarged head pile load-bearing clamp according to claim 5, characterized in that: The reinforcement mechanism also includes a plurality of groups of reinforcement members (18) arranged in a circular array on the outer surface of the inner hoop (5) and a plurality of groups of first reinforcement rods (30) vertically arranged on the inner top surface of the reinforcement cover plate (2) and plugged into the reinforcement members (18).

7. The enlarged head pile load-bearing clamp according to claim 6, characterized in that: The reinforcement mechanism also includes a reinforcement support bar (19) symmetrically arranged on the outside of the column (1) and connected to the half hoop ring (7), and a second reinforcement seat (20) detachably mounted on the upper end surface of the reinforcement cover plate (2) and supporting the reinforcement support bar (19); The reinforcement mechanism further comprises a plurality of groups of second reinforcement blocks (21) arranged on both sides of the outer surface of the second connecting strip (8) and reinforcement grooves provided on the reinforcement support strip (19) and plugged into the second reinforcement blocks (21); both sides of the outer surface of the reinforcement support strip (19) are provided with sealing plates (22) for sealing the reinforcement grooves; and the outer surface of the reinforcement support strip (19) is provided with a glue injection tube (23) connected to the reinforcement grooves.

8. The enlarged head pile load-bearing clamp according to claim 7, characterized in that: The reinforcement mechanism further comprises a first limit block (24) symmetrically arranged at the bottom end of the reinforcement support bar (19), a second limit block (25) movably and symmetrically arranged inside the second reinforcement seat (20) and limiting the first limit block (24), a limit rod (26) vertically arranged on a side of the second limit block (25), and a limit tube (27) movably connected to the limit rod (26); The bottom end of the first limiting block (24) is in the form of an inverted truncated cone structure, and the first limiting block (24) is provided with a limiting groove for engaging with the second limiting block (25); The limiting rod (26) is sleeved with a first spring (28) connected to the limiting tube (27), and the limiting tube (27) is internally provided with a second spring (29) connected to the limiting rod (26).

9. The enlarged head pile load-bearing clamp according to claim 8, characterized in that: The reinforcement mechanism also includes a second reinforcement rod (31) arranged at the bottom end of the second reinforcement seat (20) and extending into the outer clamp (4), a second connecting rod (32) vertically arranged at the bottom end of the second reinforcement rod (31), and a reinforcement cover ring (33) connected to the bottom end of the second connecting rod (32); the outer surface of the second reinforcement rod (31) is provided with a plurality of groups of inclined holes (34) in a circular array.

10. A construction method for enlarging a head pile load-bearing clamp, characterized in that: According to any one of claims 1 to 9, the enlarged head pile load-bearing clamp comprises the following specific steps: Step A: customizing the first clamp assembly, the second clamp assembly and the reinforcement mechanism according to the size of the column (1); Step B: installing the outer hoop (4), the inner hoop (5) and the reinforcement cover plate (2) on the column (1) in sequence, and installing the second reinforcement seat (20) on the upper end of the reinforcement cover plate (2); Step C: Install the supporting square tube (3) and the half hoop ring (7) onto the column (1) and align and fix the supporting base plate (10) and the reinforcing cover plate (2); Step D: fixing the reinforcement support bar (19) to the half hoop ring (7) and the reinforcement cover plate (2) respectively; Step E: inject cement slurry into the interior of the supporting square tube (3), and inject cement slurry into the interior of the outer clamp (4) through the grouting pipe (35).

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