CN219011231U - Anchor rope pile foundation pit supporting structure with recyclable anchor rope - Google Patents

Abstract

The application relates to a recoverable anchor rope stake foundation ditch supporting construction of anchor rope relates to foundation ditch supporting construction technical field, including the pile foundation, it has the sleeve pipe to slide in the pile foundation, and it has the anchor rope to slide in the sleeve pipe, and it has the stock that is located the anchor rope lower extreme to slide in the sleeve pipe, and the stock is kept away from in sheathed tube one end is fixed in the bedrock under the foundation ditch, and the anchor rope lower extreme is equipped with and is used for colluding the piece that links together with self and stock upper end mutually, is equipped with the driving piece that is used for driving the anchor rope and breaks away from the stock on the anchor rope. This application is through setting up and collude the piece for anchor rope colludes with the stock mutually, and the state that colludes each other with the stock through the driving piece is relieved to the anchor rope after foundation ditch backfill, makes anchor rope and stock separate mutually, in the anchor rope after will separating again along sleeve pipe roll-off pile foundation, has the advantage of being convenient for retrieve the anchor rope.

Description

Anchor rope pile foundation pit supporting structure with recyclable anchor rope

Technical Field

The application relates to the technical field of supporting structures, in particular to an anchor cable pile foundation pit supporting structure with a recoverable anchor cable.

Background

In foundation pit construction, a supporting structure is commonly used for protecting the safety of underground structure construction and surrounding environment of a foundation pit, and supporting, reinforcing and protecting measures are adopted for the side wall of the foundation pit and the surrounding environment. The anchor cable pile foundation is a foundation pit supporting system with one end of a tension member fixed in a stable stratum of an excavated foundation pit and the other end connected with a guard pile, and the anchor cable pile foundation is widely applied to slope and deep foundation pit supporting engineering due to the characteristics of safety and economy.

When installing anchor rope pile foundation in the foundation ditch, generally need install the main shaft in the pile foundation, the main shaft generally adopts the anchor rope that the steel strand wires are constituteed, installs the pile foundation in the foundation ditch again, makes the anchor rope provide the anti-skidding power that anchoring force and anti-skidding stake provided.

For the above related art, the inventors found that: when the anchor cable pile foundation is used for supporting the foundation pit, the anchor cable is firstly arranged in the pile foundation, then the pile foundation is arranged in the foundation pit, after the foundation pit is used, the foundation pit is backfilled, and the anchor cable and the pile foundation are buried in the foundation pit together after the foundation pit is backfilled, so that the anchor cable is inconvenient to recycle.

Disclosure of Invention

In order to be convenient for retrieve the anchor rope, the purpose of this application is to provide a recoverable anchor rope stake foundation ditch supporting construction of anchor rope.

The application provides a recoverable anchor rope stake foundation ditch supporting construction of anchor rope adopts following technical scheme:

the utility model provides a recoverable anchor rope stake foundation ditch supporting construction of anchor rope, includes the pile foundation, it has the sleeve pipe to slide in the pile foundation, it has the anchor rope to slide in the sleeve pipe, it is located to slide in the sleeve pipe the stock of anchor rope lower extreme, the stock is kept away from in sheathed tube one end is fixed in the bedrock under the foundation ditch, the anchor rope lower extreme be equipped with be used for with oneself with the piece that links to each other that colludes of stock upper end, be equipped with on the anchor rope and be used for driving the anchor rope breaks away from the driving piece of stock.

Through adopting above-mentioned technical scheme, when using the anchor rope pile foundation to support the foundation ditch, earlier with stock downwards fixed mounting in the stable bedrock under the foundation ditch, then with the pile foundation downwardly moving, make the stock slide into in the sleeve pipe. And then moving the anchor cable towards the direction close to the pile foundation, sliding the anchor cable into the sleeve downwards, and hooking the lower end of the anchor cable with the upper end of the anchor rod through the hooking piece. Then upwards pulling the anchor rope along the sleeve pipe, making anchor rope and stock collude tightly each other, keeping away from the anchor rope one end manual fixed in pile foundation upper end of stock again to collude tight state mutually with anchor rope and stock fixed, restriction anchor rope breaks away from the stock, make anchor rope and stock form vertical anchor force, increase pile foundation vertical pressure, reduce pile foundation and receive the circumstances of the horizontal pressure back slope of foundation ditch, in order to increase pile foundation and support the stability of foundation ditch. When the foundation pit is used and backfilled, the lower end of the anchor cable is driven by the driving piece to separate from the upper end of the anchor rod, so that the hooking state of the anchor cable and the anchor rod is relieved. And then the anchor cable is pulled upwards to enable the anchor cable to slide out of the pile foundation, and the anchor cable is recovered. Through setting up and colludeing the piece for anchor rope colludes with the stock mutually, and the state that colludes with the stock each other is relieved through the driving piece after foundation ditch backfill for anchor rope and stock separate mutually, in the anchor rope that will separate again along sleeve pipe roll-off pile foundation, thereby be convenient for retrieve the anchor rope.

Optionally, the hooking piece comprises a plurality of hooks fixed at the lower end of the anchor cable and bending upwards, and a plurality of hooks fixed at the upper end of the anchor rod and bending downwards, and the hooks are hooked with the hooks.

Through adopting above-mentioned technical scheme, when installing the anchor rope, remove the anchor rope towards being close to the sleeve pipe direction, slide into the sleeve pipe with the anchor rope along vertical direction, the anchor rope drives the couple and slides downwards, makes the couple remove towards one side of keeping away from the crotch through the driving piece to reduce the condition of couple sliding down back and crotch upper end looks butt. Until the hook slides to the lower part of the hook, the limit of the driving piece on the hook is released, and the hook is abutted with the hook. And then the anchor cable is pulled upwards along the sleeve, the anchor cable drives the hook to slide upwards, the hook is hooked with the hook, the upper end of the anchor cable is fixed manually after the hook is hooked with the hook, the hook and the hook are hooked with each other, the hook is limited to be separated from the hook, and the anchor cable and the anchor rod are connected and fixed, so that the anchor cable is convenient to install.

Optionally, the driving piece includes penetrating the sleeve pipe and cover is located the rope on the anchor rope, the rope is kept away from the one end of anchor rope stretches out outside the pile foundation.

Through adopting above-mentioned technical scheme, when dismantling the anchor rope, slide down the anchor rope along the sleeve pipe earlier, the anchor rope drives the couple and slides down, makes the couple break away from the crotch downwards to remove couple and the state that the crotch is hooked tightly each other, until make the couple slide to the crotch below. And then the rope is pulled, the rope drives the anchor rope to incline towards the direction close to the sounding pipe, and the anchor rope drives the hook to swing towards the direction close to the sounding pipe, so that the hook is in sliding abutting connection with the inner wall of the sleeve. And then the anchor cable is pulled upwards, the anchor cable drives the hook to slide upwards, one end of the anchor cable, which is close to the anchor cable, is driven by the anchor cable to slide upwards, and one end of the anchor cable, which is far away from the anchor cable, is driven by the anchor cable to slide downwards, so that the condition that the hook is hooked with the hook after the hook slides upwards is reduced. And after the hook is slid above the hook, the rope is loosened, the anchor rope is slid upwards out of the sleeve, and the anchor rope is separated from the sleeve, so that the anchor rope is detached, and the anchor rope is convenient to detach.

Optionally, be equipped with a plurality of sounding pipes in the pile foundation, the rope slide in the sounding pipe, the lower extreme of rope runs through the sounding pipe, the upper end of rope extends outside the sounding pipe, the lower extreme of rope runs through the sleeve pipe and overlaps and locate on the anchor rope, offered on the sleeve pipe and confession the shrinkage pool that the rope stretched into.

Through adopting above-mentioned technical scheme, when dismantling the anchor rope, slide down the anchor rope, anchor rope drives the couple and slides down, makes the couple break away from the crotch to remove couple and the mutually tight state of colluding of crotch. The hook is slid to the lower part of the hook, then the rope is pulled upwards, the rope drives the anchor rope to incline towards the direction away from the anchor rod, and the anchor rope drives the hook to incline towards the direction away from the hook, so that the hook is abutted on the inner wall of the sleeve. And then the rope is pulled upwards, the anchor rope drives the hook to slide upwards along the inner wall of the sleeve, and the anchor rope drives the rope to slide upwards, so that the rope positioned in the sounding pipe slides downwards. After the hook slides to the upper part of the hook, the rope is loosened, the hook is restored to the vertical state by gravity to release the abutting state of the hook and the inner wall of the sleeve, the anchor rope is pulled upwards, the anchor rope drives the hook to slide upwards, the anchor rope also drives the rope to slide upwards along the concave hole until the anchor rope slides out of the sleeve, and the anchor rope drives the rope to slide out of the sleeve, so that the rope is separated from the sounding pipe, and the anchor rope and the rope are recovered conveniently. Through setting up the sounding pipe, place the rope in the sounding pipe to be convenient for accomodate the rope.

Optionally, an anchor is arranged at the upper end of the pile foundation, and the anchor is used for applying downward pressure to the pile foundation.

Through adopting above-mentioned technical scheme, when dismantling the anchor rope, the ground tackle is pressed downwards, and the ground tackle supports and moves the pile foundation and move downwards, increases the downward pressure that the pile foundation received, makes the state in the pile foundation perpendicular to foundation ditch fixed. And then the anchor cable slides downwards along the sleeve, and the anchor cable drives the hook to slide downwards so that the hook is separated from the hook. And then the rope is pulled upwards, the rope drives the anchor rope to incline towards the direction close to the sounding pipe, and the anchor rope drives the hook to swing towards the direction close to the sounding pipe, so that the hook is in sliding abutting connection with the inner wall of the sleeve. And then the anchor cable is pulled upwards, the anchor cable drives the hook to slide upwards, and the anchor cable drives the rope positioned in the sleeve to slide upwards until the anchor cable slides out of the sleeve. Through setting up the ground tackle, reduce the rope and drive the anchor rope and incline the back towards being close to the sound survey pipe direction, the anchor rope drives the condition of pile foundation slope to increase the steadiness of pile foundation.

Optionally, the ground tackle including set up in the fixed disk of pile foundation upper end, be fixed in the butt ring on the fixed disk circumference lateral wall, set up on the fixed disk and supply the fixed orifices that the sleeve pipe stretches out, the butt ring butt in on the pile foundation roof.

Through adopting above-mentioned technical scheme, when the installation sleeve pipe, earlier remove the ground tackle towards being close to the pile foundation direction, with the butt ring butt on the pile foundation roof. Then the fixed disk is pressed downwards, the fixed disk drives the abutting ring to move downwards, the ground connecting ring is abutted on the pile foundation, and the fixed disk and the abutting ring are limited to slide on the upper end of the pile foundation. And then the sleeve passes through the fixing holes downwards along the vertical direction and slides into the pile foundation so as to limit the position of the sleeve in the pile foundation and reduce the moving condition of the sleeve and the pile foundation, thereby being convenient for installing the sleeve.

Optionally, a limiting hole for the sound tube to extend out is formed in the fixing plate.

Through adopting above-mentioned technical scheme, when installing the sound measurement pipe, remove sound measurement pipe towards being close to the fixed disk direction, make sound measurement pipe slide down in the pile foundation along spacing hole to with the sound measurement pipe in the fixed position of pile foundation. So as to reduce the inclination of the sound tube in the pile foundation and facilitate the fixing of the position of the sound tube in the pile foundation.

Optionally, a reinforcement cage is arranged in the pile foundation, and the reinforcement cage is used for increasing the stability of the pile foundation after the pile foundation is poured.

Through adopting above-mentioned technical scheme, when pouring the pile foundation, pour the concrete into the pile foundation, make the concrete flow to the steel reinforcement cage on. The concrete forms a whole with the steel reinforcement cage after cooling for the steel reinforcement cage supports the pile foundation inside, reduces the pile foundation and receives the condition of the impact downward sloping of foundation ditch both sides, thereby increases the fastness of pile foundation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the hook connecting piece is arranged to enable the anchor cable to be hooked with the anchor rod, the state that the anchor cable is hooked with the anchor rod is relieved through the driving piece after backfilling of the foundation pit, the anchor cable is separated from the anchor rod, and the separated anchor cable slides out of the pile foundation along the sleeve, so that the anchor cable is convenient to recycle;

2. the hook and the hook are arranged, so that after the hook and the hook are hooked tightly, the upper end of the anchor cable is manually fixed, and the anchor cable is connected and fixed with the anchor rod, so that the anchor cable is convenient to install;

3. the rope drives the anchor cable to incline towards the direction close to the sounding pipe, and the anchor cable drives the hook to swing towards the direction close to the sounding pipe, so that the hook is in sliding contact with the inner wall of the sleeve, the condition that the hook is hooked with the hook after sliding upwards is reduced, and the anchor cable is convenient to detach;

4. through setting up the ground tackle, reduce the rope and drive the anchor rope and incline the back towards being close to the sound survey pipe direction, the anchor rope drives the condition of pile foundation slope to increase the steadiness of pile foundation.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of an embodiment of the present application for illustrating a reinforcement cage.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural view for showing a hook according to an embodiment of the present application.

Reference numerals illustrate: 1. pile foundation; 11. a sleeve; 111. concave holes; 12. an anchor cable; 13. a bolt; 14. a hooking piece; 141. a hook; 142. a hook; 15. a driving member; 151. a rope; 16. a sound tube; 161. a through hole; 17. a through groove; 2. an anchor; 21. a fixed plate; 22. an abutment ring; 23. a fixing hole; 24. a limiting hole; 3. and (5) a reinforcement cage.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses an anchor rope pile foundation pit supporting structure with recoverable anchor rope.

Referring to fig. 1, the anchor pile foundation pit supporting structure comprises a pile foundation 1 and an anchor rod 13 sliding at the lower end of the pile foundation 1, wherein the pile foundation 1 is selected as a bored pile in the embodiment of the application, and the lower end of the anchor rod 13 is fixed in a stable bedrock under the foundation pit.

Referring to fig. 1, an anchor 2 is provided at the upper end of a pile foundation 1, and the anchor 2 is used for applying downward pressure to the pile foundation 1, so that the pile foundation 1 is fixed in a state perpendicular to a foundation pit, and the pile foundation 1 is limited to incline downward in the foundation pit.

Referring to fig. 1 and 2, the anchor 2 includes a fixed disk 21 fixed to the upper end of the pile foundation 1, and an abutment ring 22 fixed to the circumferential side wall of the fixed disk 21, the fixed disk 21 being in the shape of a circular disk, and the abutment ring 22 being in the shape of a circular ring. The diapire butt of butt ring 22 is on the roof of pile foundation 1, and the technician presses down fixed disk 21, and fixed disk 21 drives butt ring 22 and moves down, makes butt ring 22 butt in pile foundation 1 upper end and with pile foundation 1 downward butt to make pile foundation 1 perpendicular to the state of foundation ditch fixed, increase the steadiness of pile foundation.

Referring to fig. 2 and 3, a sleeve 11 slides in the pile foundation 1 along the vertical direction, the upper end of the sleeve 11 penetrates through a fixed disc 21, a fixed hole 23 for the sleeve 11 to slide in is formed in the upper end of the fixed disc 21, and a through groove 17 for the sleeve 11 to slide in is formed in the pile foundation 1. An anchor rope 12 slides in the sleeve 11 along the vertical direction, and an anchor rod 13 slides below the sleeve 11. The upper end of the anchor cable 12 extends out of the sleeve 11, the anchor cable 12 is formed by mutually winding a plurality of steel strands, 3 steel strands are selected in the embodiment of the application, the lower end of the anchor cable 12 is provided with a hooking piece 14 which hooks the anchor cable with the upper end of the anchor rod 13, and the anchor cable 12 is provided with a driving piece 15 which drives the hook 141 to separate from the hook 142.

Referring to fig. 4, the hooking member 14 includes a plurality of hooks 141 fixed to the lower end of the anchor line 12 and bent upward, and hooks 142 fixed to the upper end of the anchor rod 13 and bent downward, and the number of hooks 141 is 2 in the embodiment of the present application, and the number of hooks 142 is 3 in the embodiment of the present application. After the anchor cable 12 slides into the sleeve 11 along the vertical direction, the anchor cable 12 drives the hook 141 to slide downwards, so that the hook 141 slides to the lower part of the hook 142, then the anchor cable 12 is pulled upwards, the anchor cable 12 drives the hook 141 to slide upwards, so that the hook 141 is hooked with the hook 142 until the hook 141 hooks the hook 142, the upper end of the anchor cable 12 is manually fixed, and the hooked state of the hook 141 and the hook 142 is fixed, so that the anchor cable 12 is convenient to install.

Referring to fig. 2 and 3, a plurality of sounding pipes 16 slide in the pile foundation 1 along the vertical direction, the upper ends of the sounding pipes 16 penetrate through a fixed disc 21, and a limiting hole 24 for the sounding pipes 16 to penetrate out is formed in the fixed disc 21. The sound tube 16 slides downwards into the through groove along the limiting hole 24, and the upper end of the sound tube 16 extends out of the limiting hole 24 so as to fix the position of the sound tube 16 in the through groove and limit the sound tube 16 to slide in the through groove.

Referring to fig. 3 and 4, the driving member 15 includes a rope 151 or a pull rod sliding in the sound tube 16, the upper end of the rope 151 extending up along the sound tube 16 to the outside of the pile foundation 1, and the lower end of the rope 151 penetrating through the sound tube 16 and the sleeve 11. The side wall of the sounding pipe 16 is provided with a through hole 161 for the rope 151 to extend out, the side wall of the sleeve 11 is provided with a concave hole 111 for the rope 151 to extend in, and one end of the rope 151 extending into the sleeve 11 is wound on one end of the anchor rope 12 close to the hook 141. After the anchor cable 12 slides downwards, the anchor cable 12 drives the hook 141 to slide downwards, so that the hook 141 is separated from the hook 142, then the rope 151 is pulled upwards, the rope 151 drives the anchor cable 12 to incline towards the direction close to the sounding pipe 16, and the anchor cable 12 drives the hook 141 to swing towards the direction close to the sounding pipe 16, so that the hook 141 is in sliding abutting connection with the inner wall of the sleeve 11. And then the anchor cable 12 is pulled upwards, the anchor cable 12 drives the hook 141 to slide upwards along the inner wall of the sleeve 11, the anchor cable 12 drives one end of the rope 151 extending into the sleeve 11 to slide upwards, and the anchor cable 12 drives one end of the rope 151 positioned on the sounding pipe 16 to slide downwards until the anchor cable 12 slides out of the sleeve 11, so that the anchor cable 12 is removed from the sleeve 11, and the anchor cable 12 is convenient to recycle.

Referring to fig. 2, a reinforcement cage 3 slides in the pile foundation 1, the reinforcement cage 3 is in sliding contact with the wall of the through groove 17, and the sleeve 11 and the sounding pipe 16 are both positioned in the reinforcement cage 3. After pouring the concrete into the pile foundation 1, the concrete is made to flow onto the reinforcement cage 3 and the pile foundation 1 is filled. After the concrete is solidified, the concrete and the reinforcement cage 3 form a whole, so that the reinforcement cage 3 supports the inside of the pile foundation 1, and the firmness of the pile foundation 1 after pouring is improved.

The implementation principle of the anchor cable pile foundation pit supporting structure with the recoverable anchor cable in the embodiment of the application is as follows: when the pile foundation 1 is used for supporting the foundation pit, the anchor rod 13 is fixedly installed in a stable bedrock under the foundation pit, and is downwards inserted into the foundation pit along the vertical direction, so that the upper end of the anchor rod 13 slides into the sleeve 11. And then one end of the rope 151 is wound and fixed on the anchor rope 12, then the anchor rope 12 is slid downwards into the sleeve 11, the rope 151 is pulled upwards, the rope 151 drives the anchor rope 12 to incline towards the direction close to the sounding pipe 16, and the anchor rope 12 drives the hook 141 to swing upwards and slide to be abutted on the inner wall of the sleeve. Then the hook 141 is slid to the lower part of the hook 142, the rope 151 is loosened, the anchor rope 12 is restored to the vertical state under the gravity, and the anchor rope 12 drives the hook 141 to separate from the inner wall and swing to the right lower part of the hook 142. The anchor cable 12 is pulled upwards, the anchor cable 12 drives the hook 141 to slide upwards, the hook 141 is hooked with the hook 142, then the upper end of the anchor cable 12 is manually fixed, the hook 141 and the hook 142 are hooked, the anchor cable 12 and the anchor rod 13 form vertical anchoring force on the pile foundation 1, the condition that the pile foundation 1 inclines downwards after the side wall of the foundation pit impacts the pile foundation 1 is reduced, and the stability of the pile foundation 1 is improved.

After the foundation pit is backfilled, the anchor cable 12 is slid downwards, and the anchor cable 12 drives the hook 141 to slide downwards, so that the hook 141 is separated from the hook 142 and slides to the lower part of the hook 142. And then the rope 151 is pulled upwards, the rope 151 drives the anchor rope 12 to incline towards the direction approaching the sounding pipe 16, and the anchor rope 12 drives the hook 141 to swing upwards and abut against the inner wall of the sleeve 11. And then the anchor cable 12 is pulled upwards, the anchor cable 12 drives the hook 141 to slide upwards until the hook 141 slides to the position above the hook 142, the rope 151 is loosened, the anchor cable 12 is enabled to be restored to the vertical state under the gravity, and the anchor cable 12 drives the hook 141 to swing and swing to the position right above the hook 142. The cable bolt 12 is then slid upwardly out of the sleeve 11 to remove the cable bolt 12, thereby facilitating retrieval of the cable bolt 12.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a recoverable anchor rope stake foundation ditch supporting construction of anchor rope which characterized in that: including pile foundation (1), it has sleeve pipe (11) to slide in pile foundation (1), it has anchor rope (12) to slide in sleeve pipe (11), slide in sleeve pipe (11) have be located anchor rope (13) of anchor rope (12) lower extreme, anchor rope (13) are kept away from in the bedrock under the foundation ditch is fixed in to one end of sleeve pipe (11), anchor rope (12) lower extreme be equipped with be used for with oneself with collude link (14) that link to each other on anchor rope (13) upper end, be equipped with on anchor rope (12) and be used for driving anchor rope (12) break away from driving piece (15) of anchor rope (13).

2. The recoverable anchor line pile foundation pit supporting structure of the anchor line of claim 1, wherein: the hooking piece (14) comprises a plurality of hooks (141) which are fixed at the lower end of the anchor rope (12) and are bent upwards, and a plurality of hooks (142) which are fixed at the upper end of the anchor rod (13) and are bent downwards, and the hooks (141) are hooked with the hooks (142).

3. The recoverable anchor line pile foundation pit supporting structure of the anchor line of claim 1, wherein: the driving piece (15) comprises a rope (151) penetrating through the sleeve (11) and sleeved on the anchor rope (12), and one end, far away from the anchor rope (12), of the rope (151) extends out of the pile foundation (1).

4. A recoverable anchor line pile foundation pit supporting structure according to claim 3, wherein: be equipped with a plurality of sounding pipes (16) in pile foundation (1), rope (151) slide in sounding pipe (16), the lower extreme of rope (151) runs through sounding pipe (16), the upper end of rope (151) extends outside sounding pipe (16), the lower extreme of rope (151) runs through sleeve pipe (11) and cover are located on anchor rope (12), offer on sleeve pipe (11) supplies shrinkage pool (111) that rope (151) stretched into.

5. The recoverable anchor line pile foundation pit supporting structure of claim 4, wherein: the upper end of the pile foundation (1) is provided with an anchor (2), and the anchor (2) is used for applying downward pressure to the pile foundation (1).

6. The recoverable anchor line pile foundation pit supporting structure of claim 5, wherein: the anchor (2) comprises a fixed disc (21) arranged at the upper end of the pile foundation (1) and an abutting ring (22) fixed on the circumferential side wall of the fixed disc (21), a fixed hole (23) for the sleeve (11) to extend out is formed in the fixed disc (21), and the abutting ring (22) abuts against the top wall of the pile foundation (1).

7. The recoverable anchor line pile foundation pit supporting structure of claim 6, wherein: and a limiting hole (24) for the sounding pipe (16) to extend out is formed in the fixed disc (21).

8. The recoverable anchor line pile foundation pit supporting structure of the anchor line of claim 1, wherein: there is steel reinforcement cage (3) in pile foundation (1), steel reinforcement cage (3) are used for with behind pile foundation (1) pouring increase pile foundation (1) steadiness.

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