CN113756292B - Waist beam suspension steel bar and template quick-forming structure and construction method thereof - Google Patents

Abstract

The invention relates to a waist rail suspension steel bar and template quick-forming structure, which comprises a steel bar dragging cage steel bar planting part, a mold supporting steel bar planting part, a steel bar cage and a template, wherein the upper end of the steel bar dragging cage steel bar planting part is inwards bent to form a horizontal naked flat bar, the lower end of the steel bar dragging cage steel bar planting part is inwards bent to form an oblique inclined pull bar, and an in-mold flat bar is welded below the naked flat bar; the support die embedded steel bars are obliquely fixed below the embedded steel bars of the steel bar dragging cage; the structural reinforcement cage is vertically fixed on the inner side of the embedded steel bar of the dragging reinforcement cage; the template is supported above the supporting template embedded bars; the end parts of the bare flat rib and the in-mold flat rib are provided with reverse claw end anchors, and the end parts of the diagonal draw rib and the support mold embedded rib are provided with pointed end anchors. The invention also relates to a construction method of the waist beam suspension steel bar and template quick-forming structure. The invention not only achieves the effect of bearing the traditional reinforcing steel bars and templates, but also eliminates the influence of the alternation of the construction process on the construction efficiency, improves the forming stability of the reinforcing steel bars and the templates of the waist beam, and simultaneously ensures the construction efficiency and the structural quality.

Description

Waist beam suspension steel bar and template quick-forming structure and construction method thereof

Technical Field

The invention relates to the field of building process methods, in particular to a waist beam suspension steel bar and template quick-forming structure and a construction method thereof.

Background

Traditional waist rail reinforcing bar, template structure technology need carry out top muscle construction and template vertical braces construction alone, and two kinds of processes need alternate because mutual technological condition limits, and the shut down of the long time that this kind of construction method can cause is idle, very big influence the efficiency of construction. The existing synchronous construction process of the reinforced form has the defects that the form falls off, the reinforced bars shift in the pouring process, the combination of the beam body and the foundation structure is not firm after the beam is formed, the beam body strength does not reach the standard and the like due to insufficient combination strength of the reinforced bars on the foundation structure.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: overcomes the problem of low construction efficiency caused by the alternate construction of the traditional waist rail reinforcing steel bar, the template structure top bar and the template vertical support, and the prior synchronous construction process of the reinforced template, the defects of insufficient structural strength and bonding strength of the beam body caused by insufficient bonding strength of the steel bars on the foundation structure are overcome, the waist beam suspension steel bars, the template quick-forming structure and the construction method thereof are provided, by directly introducing the embedded bars with high strength and stability for carrying the reinforcing steel bars and supporting the template on the cast-in-place pile, the effect of bearing the weight of the traditional reinforcing steel bars and templates is achieved, but also eliminates the influence of the alternation of the construction process on the construction efficiency, simultaneously solves the problem of weak stress of the lower operation supporting point of the template, improves the molding stability of the waist rail reinforcing steel bar and the template, meanwhile, the material investment and the labor consumption are reduced, and the construction efficiency and the structure quality are ensured.

The waist rail suspension steel bar and template quick forming structure comprises a dragging steel bar cage embedded bar and a supporting die embedded bar which are fixedly connected to a cast-in-place pile, a structural steel bar cage fixed on the dragging steel bar cage embedded bar, and a template which is detachably erected on the dragging steel bar cage embedded bar and the supporting die embedded bar, wherein a main body part of the dragging steel bar cage embedded bar inclines gradually from top to bottom along the cast-in-place pile; the die-supporting embedded steel bars are obliquely fixed below the embedded steel bars of the steel bar dragging cage and are arranged in parallel with the diagonal draw bars; the structural reinforcement cage is arranged perpendicular to the embedded steel bars of the dragging reinforcement cage and is fixed on the inner side of the embedded steel bars of the dragging reinforcement cage; uniformly welding and binding the structural reinforcement cage on the main body part of the embedded reinforcement of the dragging reinforcement cage, the diagonal reinforcement and the in-mold flat reinforcement at equal intervals; the template is supported above the support die embedded steel bars, the bottom of the template is supported on the support die embedded steel bars, and the upper part of the template is attached to the main body part of the steel bar dragging cage embedded steel bars and the outer side of the in-mold flat steel bars; drag naked plain muscle of steel reinforcement cage planting bar and mould plain muscle tip in be equipped with the anti-claw end anchor, drag the diagonal reinforcement tip of steel reinforcement cage planting bar and be equipped with tip end anchor, die-supporting planting bar tip is equipped with tip end anchor, and the other end of die-supporting planting bar is equipped with the cramping iron wire, cramping iron wire hoop cover is in the template outside to upwards extend to connect to fix on dragging the naked plain muscle of steel reinforcement cage planting bar.

For realizing dragging the firm fixed of steel reinforcement cage plant bar on the bored concrete pile to guarantee that it carries on the required pull-out strength of steel reinforcement cage, and cooperate its class trapezoidal configuration to satisfy the bearing demand after concrete placement, anti-claw end anchor welding is in the tip of naked plain steel bar and mould plain steel, anti-claw end anchor includes the spiral anchor head, and the inside and outside equipartition of spiral anchor head is equipped with the anti-claw tooth of reverse slope.

Furthermore, be equipped with on the bored concrete pile and be used for holding the flat-open macropore of naked flat muscle and the anti-claw end anchor of flat muscle tip in the mould and be used for holding oblique-open aperture of diagonal draw bar and support mould planting muscle tip end anchor. Further, C30 concrete plugging materials are filled in the large flat-open holes. The bare flat rib and the in-mold flat rib are required to bear the drawing force in the pouring process and after the beam is formed besides carrying the reinforcement cage, and the strength of the beam body is ensured, so that a reverse internal and external anti-falling pawl structure is adopted, external pawls are used for hooking the horizontal hollow inner wall of the filling pile, internal pawls are used for hooking concrete filler, and the spiral anchor head is used for increasing the integrity of the whole end anchor and the filler; the diagonal draw bar relies on tip end anchor with support mould bar planting, utilizes the sledge hammer slant to wedge in, because it mainly undertakes to hold in the palm lifting force and does not undertake the die pull power, and the later stage holds in the palm the membrane bar planting and need pull out fast, so adopt the structure of slant arrow point, when guaranteeing to lift and carry on intensity, be convenient for after pouring the completion, the quick whole of cooperation template removes.

Furthermore, the template is a bamboo plywood template, a transverse wood keel is arranged between the bottom of the template and the support die planting bar, and the transverse wood keel is vertically tied up on the support die planting bar. The wood keels and the support die steel bars are vertically arranged to form a lower supporting grid, and the bamboo plywood formwork is convenient to disassemble and assemble.

This waist rail suspension reinforcing bar, construction method of template rapid-prototyping structure, characterized by: the wale suspended steel bar and formwork quick-forming structure is the wale suspended steel bar and formwork quick-forming structure of claims 1 to 5, the construction method comprises the following steps,

s1 dotting and punching: leveling points on the target cast-in-place pile, horizontally and obliquely punching according to the placed points, and blowing off dust in the holes by using a blower after punching horizontal large holes;

s2 hole sealing by planting steel bars: aligning the pointed anchor end at the lower end of the steel bar planting cage with the corresponding inclined orifice and wedging the pointed anchor end into the hole by using a sledge hammer, aligning the inverted claw end anchor at the upper end of the steel bar planting cage with the horizontal large-hole orifice, wedging the inverted claw end anchor into the hole by using the sledge hammer until each inverted claw anchor end is wedged into the blind end at the bottom of the horizontal large-hole, and filling C30 concrete into the horizontal large hole to plug the hole;

s3 steel bar connection: welding the structural steel bars one by one on the inner side of the embedded steel bars of the steel bar dragging cage to form a steel bar cage, and binding and protecting welding spots by using galvanized iron wires;

s4, erecting and pouring concrete: pulling out a plurality of hooping iron wires from the mold-supporting planting bars, laying and binding a transverse wooden keel on the mold-supporting planting bars, arranging a bamboo plywood template on the transverse wooden keel, obliquely pulling the hooping iron wires to the upper end of the planting bars of the steel bar dragging cage for fixing, and slowly injecting concrete into the template;

s5 template removal: and (4) unfastening and binding the transverse wooden keel, drawing out the die-supporting embedded steel bars and dismantling the transverse wooden keel, pulling the steel bar cage embedded steel bars from the upper end by using a clamp to cut off and hoop an iron wire, and dismantling the whole template.

The invention relates to a waist rail suspended reinforcement, template rapid-prototyping structure and a construction method thereof, which solves the problem of low construction efficiency caused by the alternate construction of the traditional waist rail reinforcement, template structure top reinforcement and template vertical support, and the synchronous construction process of the existing reinforced template, the defects of insufficient structural strength and bonding strength of the beam body caused by insufficient bonding strength of the steel bars on the foundation structure, by directly introducing the embedded bars with high strength and stability for carrying the reinforcing steel bars and supporting the template on the cast-in-place pile, the effect of bearing the weight of the traditional reinforcing steel bars and templates is achieved, and eliminates the influence of the alternation of the construction process on the construction efficiency, solves the problem of weak stress of the operation supporting point under the template, improves the molding stability of the waist rail reinforcing steel bar and the template, on the basis of reducing material input and manpower consumption, construction efficiency and structural quality are guaranteed simultaneously.

Drawings

The invention further discloses a waist beam suspension steel bar and template quick structure and a construction method thereof by combining the following drawings:

FIG. 1 is a schematic plane structure diagram of the waist rail suspension steel bar and formwork quick-forming structure;

FIG. 2 is a partial enlarged view of the structure of portion A in FIG. 1;

FIG. 3 is a partial enlarged view of the structure of the portion B in FIG. 1;

FIG. 4 is a partial enlarged view of the structure at the point C in FIG. 1;

fig. 5 is a concrete flow block diagram of the construction method of the waist rail suspension reinforcing steel bar and formwork quick-forming structure.

In the figure:

0-filling a pile;

1-dragging reinforcement cage to plant reinforcement; 11-naked flat bar, 12-diagonal bar, 13-in-mold flat bar, 14-inverted claw end anchor and 15-C30 concrete blocking material; 141-spiral anchor head, 142-reverse claw teeth;

2-supporting a mould and planting ribs; 21-hooping the iron wire;

3-structural reinforcement cages;

4-template;

5-transverse wood keel.

Detailed Description

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "left", "right", "front", "back", "top", "bottom", "inner", "outer", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

The technical solution of the present invention is further described by the following specific examples, but the scope of the present invention is not limited to the following examples.

Example 1: as shown in fig. 1 to 4, the waist rail suspension steel bar and formwork fast forming structure comprises a dragging steel bar cage embedded bar 1 and a supporting mold embedded bar 2 which are fixedly connected to a cast-in-place pile 0, a structural steel bar cage 3 which is fixed on the dragging steel bar cage embedded bar 1, and a formwork 4 which is detachably erected on the dragging steel bar cage embedded bar 1 and the supporting mold embedded bar 2, wherein the main body part of the dragging steel bar cage embedded bar 1 is inclined gradually along the cast-in-place pile 0 from top to bottom, the upper end of the main body part of the dragging steel bar cage embedded bar 1 is bent inwards to form a horizontal bare flat bar 11, the lower end of the main body part of the dragging steel bar cage embedded bar 1 is bent inwards to form an inclined steel bar 12, and an in-mold flat bar 13 which is parallel to the bare flat bar 11 is welded below the main body part of the dragging steel bar cage embedded bar 1; the die-supporting embedded steel bars 2 are obliquely fixed below the towed steel bar cage embedded steel bars 1 and are arranged in parallel with the diagonal draw bars 12; the structural reinforcement cage 3 is arranged perpendicular to the towed reinforcement cage embedded bar 1 and fixed on the inner side of the towed reinforcement cage embedded bar 1; the structural reinforcement cage 3 is uniformly welded and bound on the main body part of the steel bar planting cage 1, the diagonal ribs 12 and the in-mold flat ribs 13 at equal intervals; the template 4 is erected above the support die steel bar planting 2, the bottom of the template 4 is supported on the support die steel bar planting 2, and the upper part of the template 4 is attached to the main body part of the steel bar dragging cage steel bar planting 1 and the outer side of the in-mold flat steel bar 13; drag naked plain muscle 11 of steel reinforcement cage bar planting 1 and mould in 13 tip of plain muscle be equipped with anti-claw end anchor 14, drag 12 tip of diagonal reinforcement of steel reinforcement cage bar planting 1 and be equipped with tip end anchor, 2 tip of support mould bar planting are equipped with tip end anchor, and the other end of support mould bar planting 2 is equipped with hooping iron wire 21, hooping iron wire 21 hoop is in 4 outsides of template to upwards extend to connect to fix on dragging naked plain muscle 11 of steel reinforcement cage bar planting 1. The template 4 is a bamboo plywood template, a transverse wood keel 5 is arranged between the bottom of the template 4 and the support mold planting bar 2, and the transverse wood keel 5 is vertically tied up on the support mold planting bar 2. The wood keels and the support die steel bars 2 are vertically arranged to form a lower support grid, and the bamboo plywood formwork is convenient to disassemble and assemble.

Example 2: as shown in fig. 3 and 4, in order to realize the firm fixation of the steel bar dragging cage steel bar planting on the cast-in-place pile so as to ensure the drawing strength required by the steel bar dragging cage and meet the bearing requirement after concrete pouring by matching with the similar trapezoidal configuration, the anti-claw end anchor 14 is welded at the end parts of the bare flat bar 11 and the in-mold flat bar 13, the anti-claw end anchor 14 comprises a spiral anchor head 141, and anti-claw teeth 142 which are inclined in opposite directions are uniformly distributed on the inner part and the outer part of the spiral anchor head 141. The cast-in-place pile 0 is provided with a large flat-open hole for accommodating the end anchor 14 of the reverse claw at the end part of the bare flat rib 11 and the in-mold flat rib 13 and a small inclined-open hole for accommodating the end anchor of the tip at the end part of the stay rib 12 and the in-mold flat rib 2. Further, the C30 concrete plugging material 15 is filled in the large flat-open hole. The bare flat bar and the in-mold flat bar are required to bear the drawing force in the pouring process and after beam forming besides carrying a steel reinforcement cage, and the strength of a beam body is ensured, so that a reverse inner and outer anti-falling pawl structure is adopted, outer pawls are used for hooking the horizontal hollow inner wall of the cast-in-place pile, inner pawls are used for hooking a concrete filler, and a spiral anchor head is used for increasing the integrity of the whole end anchor and the filler; the diagonal draw bar and ask mould bar planting to rely on tip end anchor, utilize the sledge hammer slant to wedge in, because it mainly undertakes to hold in the palm the power of lifting and does not undertake the die pull power, and later stage asks the membrane bar planting to need pull out fast, so adopt the structure of slant arrow point, when guaranteeing to lift and carry on intensity, be convenient for after pouring the completion, the quick whole of cooperation template removes. The remaining structure and components are as described in embodiment 1 and will not be described repeatedly.

Embodiment 1: as shown in fig. 5, the construction method of the wale suspended reinforcement and formwork quick-forming structure comprises the following steps,

s1 dotting and punching: leveling points on the target cast-in-place pile, horizontally and obliquely punching according to the placed points, and blowing off dust in the holes by using a blower after punching horizontal large holes;

s2 hole sealing by planting steel bars: aligning the pointed anchor end at the lower end of the steel bar planting cage with the corresponding inclined orifice and wedging the pointed anchor end into the hole by using a sledge hammer, aligning the inverted claw end anchor at the upper end of the steel bar planting cage with the horizontal large-hole orifice, wedging the inverted claw end anchor into the hole by using the sledge hammer until each inverted claw anchor end is wedged into the blind end at the bottom of the horizontal large-hole, and filling C30 concrete into the horizontal large hole to plug the hole;

s3 steel bar connection: welding the structural steel bars one by one on the inner side of the embedded steel bars of the steel bar dragging cage to form a steel bar cage, and binding and protecting welding spots by using galvanized iron wires;

s4, erecting and pouring concrete: pulling out a plurality of hooping iron wires from the mould supporting planting bars, laying and binding a transverse wood keel on the mould supporting planting bars, arranging a bamboo plywood template on the transverse wood keel, obliquely pulling the hooping iron wires to the upper end of the steel bar dragging cage planting bars for fixing, and slowly injecting concrete into the template;

s5 template removal: and (4) unbinding the transverse wooden keel for binding, drawing out the support die embedded steel bars and dismantling the transverse wooden keel, pulling the steel bar cage embedded steel bar side from the upper end by using pliers to cut off a hooping iron wire, and dismantling the whole template.

Application example 1: the project of the Qingdaotai Meijia exclusive service apartment is located Ningxia Luo No. 137 in the south of Qingdao City. The building is a residential building with 18 floors, 2 floors of basements, 1-2 floors of commercial outlets and 2.9 meters of standard floor height. The project starting date is 2011, 11 and 1 days, the completion date is 2012, 12 and 20 days, the total building area of the project is 10545.83 square meters, and the heat preservation area is 9174.87 square meters. By adopting the construction method technology, the construction efficiency and the flatness are ensured, the bonding degree of the external wall insulation and the waterproof performance of the external wall insulation are also solved, and the historical difficult problems of the external wall insulation falling and water leakage are ensured. Professional training and bottom crossing are carried out on constructors and field managers before construction, and heat preservation fixing, checking and pouring are carried out according to the construction process required by the construction method strictly. The field test shows that the phenomena of water leakage, infirm bonding, unevenness and the like do not occur, the external wall has the advantages of firm heat-insulating bonding, excellent waterproof performance, no leakage phenomenon and good stability, and all the phenomena meet the design requirements. Through detection, the heat preservation performance meets the national standard requirements, the total cost is saved by 66.51 ten thousand yuan, the construction period is saved by 65 days, good economic benefits are obtained, and praise of construction units and good economic and social benefits are obtained.

Application example 2: in the project of a medium-sized square and a cloud shop, the total building area is 28029.53 square meters, and the heat preservation area is 24105 square meters. Underground 1 layer, underground construction area 6607.94 square meters, and above-ground 3 layers. The start time is 11 and 20 days in 2013, and the completion date is 11 and 15 days in 2014. By adopting the construction method technology, the construction efficiency and the flatness are ensured, the bonding degree of the external wall insulation and the waterproof performance of the external wall insulation are also solved, and the historical difficult problems of the external wall insulation falling and water leakage are ensured. Professional training and bottom crossing are carried out on constructors and field managers before construction, and heat preservation fixing, checking and pouring are carried out according to the construction process required by the construction method strictly. The field test shows that the phenomena of water leakage, infirm bonding, unevenness and the like do not occur, the external wall has the advantages of firm heat-insulating bonding, excellent waterproof performance, no leakage phenomenon and good stability, and all the phenomena meet the design requirements. Through detection, the heat preservation performance meets the national standard requirements, the total cost is saved by 174.7 ten thousand yuan, the construction period is saved by 57 days, good economic benefits are obtained, and praise of construction units and good economic and social benefits are obtained.

The waist rail suspended steel bar, template quick-forming structure and the construction method thereof solve the problem of low construction efficiency caused by the alternate construction of the traditional waist rail steel bar, template structure top bar and template vertical support, and the prior synchronous construction process of the steel bar template, the defects of insufficient structural strength and bonding strength of the beam body caused by insufficient bonding strength of the steel bars on the foundation structure, by directly introducing the embedded bars with high strength and stability for carrying the reinforcing steel bars and supporting the template on the cast-in-place pile, the effect of bearing the weight of the traditional reinforcing steel bars and templates is achieved, and eliminates the influence of the alternation of the construction process on the construction efficiency, solves the problem of weak stress of the operation supporting point under the template, improves the molding stability of the waist rail reinforcing steel bar and the template, on the basis of reducing material input and labor consumption, the construction efficiency and the structure quality are guaranteed.

The foregoing description illustrates the principal features, rationale, and advantages of the invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments or examples, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The above embodiments or examples are therefore to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (4)

1. The utility model provides a waist rail suspension reinforcing bar, template rapid prototyping structure which characterized by: comprises a towing steel bar cage embedded bar (1) and a supporting mold embedded bar (2) which are fixedly connected on a cast-in-place pile (0), a structural steel bar cage (3) which is fixed on the towing steel bar cage embedded bar (1), and a template (4) which is detachably erected on the towing steel bar cage embedded bar (1) and the supporting mold embedded bar (2), wherein,

the main body part of the towed steel bar cage embedded bar (1) inclines gradually along the cast-in-place pile (0) from top to bottom, the upper end of the main body part of the towed steel bar cage embedded bar (1) is bent inwards to form a horizontal naked flat bar (11), the lower end of the main body part of the towed steel bar cage embedded bar (1) is bent inwards to form an oblique inclined stay bar (12), and an in-mold flat bar (13) parallel to the naked flat bar (11) is welded below the naked flat bar (11) on the main body part of the towed steel bar cage embedded bar (1); the formwork supporting embedded steel bars (2) are obliquely fixed below the steel bar dragging cage embedded steel bars (1) and are arranged in parallel with the diagonal draw bars (12); the structural reinforcement cage (3) is arranged perpendicular to the towed reinforcement cage embedded bars (1) and fixed on the inner side of the towed reinforcement cage embedded bars (1); the structural reinforcement cage (3) is uniformly welded and tied on the main body part of the steel bar planting cage (1), the diagonal reinforcement (12) and the in-mold flat reinforcement (13) at equal intervals; the template (4) is erected above the support-die steel bar planting (2), the bottom of the template (4) is supported on the support-die steel bar planting (2), and the upper part of the template (4) is attached to the main body part of the support-die steel bar planting cage (1) and the outer side of the in-die flat bar (13);

the end parts of the bare flat rib (11) of the towed steel bar cage embedded rib (1) and the in-mold flat rib (13) are provided with a reverse claw end anchor (14), the end part of the diagonal reinforcement (12) of the towed steel bar cage embedded rib (1) is provided with a pointed end anchor, the end part of the supported mold embedded rib (2) is provided with a pointed end anchor, the other end of the supported mold embedded rib (2) is provided with a hooping iron wire (21), and the hooping iron wire (21) is sleeved outside the template (4) and extends upwards to be connected and fixed on the bare flat rib (11) of the towed steel bar cage embedded rib (1);

the anti-claw end anchor (14) is welded at the end parts of the bare flat rib (11) and the in-mold flat rib (13), the anti-claw end anchor (14) comprises a spiral anchor head (141), and anti-claw teeth (142) which are inclined in opposite directions are uniformly distributed on the inner part and the outer part of the spiral anchor head (141);

be equipped with on bored concrete pile (0) and be used for holding naked flat muscle (11) and flat muscle in the mould (13) tip reverse claw end anchor (14) the flat-open macropore and be used for holding diagonal draw muscle (12) and support mould bar planting (2) tip end anchor's oblique trompil aperture.

2. The wale suspended reinforcement and formwork quick-forming structure according to claim 1, wherein: c30 concrete plugging materials (15) are filled in the large flat-open holes.

3. The wale suspended steel bar and formwork quick-forming structure as claimed in claim 2, wherein: the template (4) is a bamboo plywood template, a transverse wood keel (5) is arranged between the bottom of the template (4) and the mould supporting planting bars (2), and the transverse wood keel (5) is vertically bound on the mould supporting planting bars (2).

4. A construction method for a waist rail suspension reinforcing steel bar and formwork quick-forming structure is characterized in that: the wale suspended steel bar and formwork quick-forming structure is the wale suspended steel bar and formwork quick-forming structure of claim 3, the construction method comprises the following steps,

s1 dotting and punching: leveling points on the target cast-in-place pile, horizontally and obliquely punching according to the placed points, and blowing off dust in the holes by using a blower after punching horizontal large holes;

s2 hole sealing by planting steel bars: aligning the pointed anchor end at the lower end of the embedded bar of the towed steel bar cage with the corresponding inclined orifice and wedging the pointed anchor end into the hole by using a sledge hammer until the inverted claw end anchor at the upper end of the embedded bar of the towed steel bar cage is aligned with the horizontal large-hole orifice, wedging the inverted claw end anchor into the hole by using the sledge hammer until each inverted claw anchor end is wedged into the blind end at the bottom of the horizontal large-hole, and filling C30 concrete into the horizontal large hole to plug the hole;

s3 steel bar connection: welding the structural steel bars one by one on the inner side of the embedded steel bars of the steel bar dragging cage to form a steel bar cage, and binding and protecting welding spots by using galvanized iron wires;

s4, erecting and pouring concrete: pulling out a plurality of hooping iron wires from the mould supporting planting bars, laying and binding a transverse wood keel on the mould supporting planting bars, arranging a bamboo plywood template on the transverse wood keel, obliquely pulling the hooping iron wires to the upper end of the steel bar dragging cage planting bars for fixing, and slowly injecting concrete into the template;

s5 template removal: and (4) unfastening and binding the transverse wooden keel, drawing out the die-supporting embedded steel bars and dismantling the transverse wooden keel, pulling the steel bar cage embedded steel bars from the upper end by using a clamp to cut off and hoop an iron wire, and dismantling the whole template.

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