CN213038366U

CN213038366U - Pile foundation construction structure

Info

Publication number: CN213038366U
Application number: CN202021493335.9U
Authority: CN
Inventors: 饶波; 陆强; 肖清明
Original assignee: Chengdu Chengtou Construction Engineering Co ltd
Current assignee: Chengdu Chengtou Construction Engineering Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-04-23
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a pile foundation construction structure, it includes the last ring body and the lower ring body that the size is the same, it has the installation lamella on a plurality of to go up vertical rigid coupling on the diapire of ring body, vertical rigid coupling has installation lamella under a plurality of on the roof of lower ring body, it assembles the setting with installation lamella is crisscross down to go up the installation lamella, it has set firmly the slider on the lateral wall with installation lamella contact down to go up the installation lamella, the slider slides along vertical direction and sets up under on the installation lamella, the top of going up the ring body is provided with the mounting that is used for connecting installation lamella down. When the pile casing is lifted out of the ground, the ground is firstly upwards pulled out through the upper installation valve and the upper ring body, the upper installation valve is lifted to the highest point between the lower installation valve, the lower installation valve and the lower ring body are continuously pulled to be lifted out of the ground through the sliding block on the upper installation valve, and therefore the contact area between the inner wall and concrete in the pile casing lifting process is effectively reduced, the pile casing is conveniently lifted out of the ground, and resources are saved.

Description

Pile foundation construction structure

Technical Field

The application relates to the technical field of building construction, in particular to a pile foundation construction structure.

Background

When utilizing drilling machine construction stake hole in the construction field, can set up the pile casing usually, utilize the pile casing to increase downthehole well water pressure and prevent the hole that collapses, can also play keep apart surface water, protection drill way ground, spud pile hole position and drill bit guide effect.

The patent with the publication number of CN210737531U discloses a pile foundation casing, which comprises a casing, wherein the casing is a cylinder with two open ends, the outer side of the casing is detachably connected with a positioning cylinder coaxial with the casing, the positioning cylinder is sleeved on the outer peripheral surface of the casing and connected with the casing in a sliding manner, the bottom end of the positioning cylinder is provided with a leveling device, the leveling device comprises a plurality of connecting plates fixedly arranged on the outer peripheral surface of the positioning cylinder, the connecting plates are uniformly distributed along the circumferential direction of the positioning cylinder, each connecting plate is connected with a leveling bolt in a threaded manner, and the axial direction of the leveling bolt is the same as the axial direction of the positioning cylinder.

With respect to the related art among the above, there are the following drawbacks: for the pile casing buried under the ground in a deep and long mode, after concrete pile foundations in the pile casing are poured, the pile casing is tightly connected with foundation piles, pulling force required for pulling out the pile casing in a pulling-out mode is large, operation difficulty and construction cost are high, the pile casing with the deep and long mode is usually selected to be abandoned, and resource waste is serious.

SUMMERY OF THE UTILITY MODEL

In order to improve the convenience that the deep-length protects a recovery, this application provides a pile foundation construction structures.

The application provides a pile foundation construction structure adopts following technical scheme:

the utility model provides a pile foundation construction structure, includes the last ring body and the lower ring body that the size is the same, vertical rigid coupling has last installation lamella on going up the diapire of ring body, it is provided with a plurality of along the even interval of last ring body circumference to go up the installation lamella, vertical rigid coupling has down the installation lamella on the roof of ring body down, the even interval of circumference of ring body is provided with a plurality of down along the installation lamella down, it assembles the setting with installation lamella is crisscross down to go up the installation lamella, it has set firmly the slider on the lateral wall with installation lamella contact down to go up the installation lamella, the slider slides along vertical direction and sets up under on the installation lamella, the top of going up the ring body is provided with the mounting that is used for connecting down the.

By adopting the technical scheme, the ground is driven into the pile casing, after the foundation pile is poured in the pile casing, before the pile foundation concrete is initially set, the fixing piece between the upper ring body and the lower mounting flap is released, the lifting device is used for clamping the upper ring body and pulling the upper ring body to ascend, in the ascending process, the upper mounting flap and the upper ring body are firstly upwards pulled out of the ground, after the upper mounting flap is lifted to the highest point between the lower mounting flap and the lower mounting flap, the lower mounting flap and the lower ring body are lifted up from the ground through the continuous force application of the sliding blocks on the upper mounting flap, and the upper mounting flap and the lower mounting flap are divided into two parts to be sequentially lifted up from the ground, so that the friction force between the upper mounting flap and the lower mounting flap and the concrete in the lifting process of the pile casing is effectively reduced, the pile casing is convenient to be lifted out and recycled from the ground, and resources are.

Preferably, the fixing part is a bolt, a through hole is formed in the top wall of the upper ring body in the vertical direction, a plurality of through holes are formed in the through hole along the circumferential direction of the upper ring body at even intervals, a threaded hole matched with the bolt is formed in the top wall of the lower installation flap, and the bolt penetrates through the through hole and is in threaded connection with the threaded hole.

Through adopting above-mentioned technical scheme, will go up ring body, lower ring body and go up installation lamella, install down the lamella and assemble into complete protecting a section of thick bamboo after constructor, use the bolt from the through-hole on the ring body insert, threaded connection inserts down the screw hole on the installation lamella again, can be stable with protecting a section of thick bamboo structural connection, makes things convenient for constructor to squeeze into ground protecting a section of thick bamboo, convenient to use.

Preferably, the vertical lateral walls of the two sides of the lower installation flap are provided with strip-shaped holes in a penetrating manner in the opposite direction, two adjacent upper installation flaps are fixedly connected to the sliding blocks, and the connecting rods are slidably arranged in the strip-shaped holes in a penetrating manner.

Through adopting above-mentioned technical scheme, at a section of thick bamboo promotion ground in-process, the connecting rod slides in the bar hole on installing the lamella down, and when the connecting rod removed top in the bar hole, ring body rebound under the beginning drove, and structural connection is reliable, and it is good to promote stability.

Preferably, the inner side wall of the lower installation flap is provided with splicing grooves along the vertical edges at two sides, and the vertical side walls at two sides of the upper installation flap are fixedly connected with flanges matched with the splicing grooves.

By adopting the technical scheme, after the upper installation flap and the lower installation flap are spliced with each other, the turned-over edge on the upper installation flap is clamped in the splicing groove on the lower installation flap, so that the splicing seam between the upper installation flap and the lower installation flap is shielded, and the sealing property of the protective cylinder is improved.

Preferably, a slot is formed in the top wall of the lower ring body, and an insertion piece matched with the slot is fixedly connected to one end, far away from the upper ring body, of the upper installation flap.

Through adopting above-mentioned technical scheme, install the lamella and install the lamella back each other with down at last, the inserted sheet on the installation lamella inserts and lies in under adjacent slot between the installation lamella on the ring body roof to improve the leakproofness to installation lamella and ring body concatenation department down.

Preferably, the inner edge of the bottom end of the lower ring body is a cutting edge.

Through adopting above-mentioned technical scheme, squeeze into underground in-process downwards at the casing, the blade of lower ring body bottom can be effectively with the earth of lower ring body below to the outside of casing release, reduces the earth resistance that the casing squeezed into ground in-process received, conveniently protects the casing and squeezes into ground.

Preferably, the outer wall of the lower ring body is coaxially and fixedly provided with a convex edge along the circumferential direction, and the outer edge of the bottom wall of the convex edge is an inclined surface.

Through adopting above-mentioned technical scheme, squeeze into underground in-process at the pile casing, the inclined plane combined action on the diapire of chimb and chimb is a bit bigger than the mounting groove of pile casing diameter with subaerial expanding department to effectively reduce the frictional force between the outer wall of pile casing and earth when proposing ground.

Preferably, the outer edge of the top wall of the convex edge is an inclined surface.

Through adopting above-mentioned technical scheme, the roof outer fringe inclined plane of chimb can break the earth that the chimb top collapsed when protecting a section of thick bamboo and rise, further reduces and protects a section of thick bamboo frictional force between lateral wall and the ground when proposing ground.

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

1. when the pile casing is lifted out of the ground, the upper mounting flap and the upper ring body are firstly pulled out of the ground upwards, and after the upper mounting flap is lifted to the highest point between the lower mounting flaps, the lower mounting flap and the lower ring body are continuously pulled to be lifted out of the ground through the sliding block on the upper mounting flap, so that the contact area between the inner wall and concrete in the lifting process of the pile casing is effectively reduced, the pile casing is conveniently lifted out of the ground for recycling, and resources are saved;

2. when the pile casing lifts the ground, the connecting rod slides in the strip-shaped hole on the lower mounting flap, and when the connecting rod moves to the top end in the strip-shaped hole, the lower ring body starts to be driven to move upwards, so that the structural connection is reliable, and the lifting stability is good;

3. in the underground process is squeezed into to the pile casing, the inclined plane combined action on the diapire of chimb and chimb is greater than the mounting groove of pile casing diameter with subaerial expanding department to effectively reduce the frictional force between the outer wall of pile casing and earth when proposing ground.

Drawings

Fig. 1 is an overall structural schematic diagram of a casing splicing state according to an embodiment of the present application.

Fig. 2 is a schematic partial sectional structural view of the lower ring body and the lower installation flap in a pulled state of the protective sleeve according to the embodiment of the application.

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

Description of reference numerals: 1. an upper ring body; 11. installing a valve on the bracket; 2. a lower ring body; 21. a lower mounting flap; 3. a bolt; 31. a through hole; 32. a threaded hole; 4. splicing grooves; 41. flanging; 42. a slot; 43. inserting sheets; 5. cutting edges; 6. a convex edge; 7. a slider; 71. a strip-shaped hole; 72. a connecting rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses pile foundation construction structure. Referring to fig. 1, an upper ring body 1 and a lower ring body 2 having the same size are included. Go up and evenly be equipped with a plurality of installation lamella 11 on the diapire of ring body 1 along self circumference an organic whole, evenly be equipped with a plurality of lower installation lamella 21 crisscross with last installation lamella 11 along self circumference an organic whole on the roof of lower ring body 2, in this embodiment, it respectively has five with lower installation lamella 21 to go up installation lamella 11, and installation lamella 11 is as high as height with five lower installation lamella 21 on five, and last installation lamella 11 forms with lower installation lamella 21 concatenation, combines with last ring body 1 and lower ring body 2 and protects a section of thick bamboo completely.

Referring to fig. 2, the upper ring 1 is provided with a fixing member for connecting the lower ring 2 and the lower mounting petals 21, and in this embodiment, the fixing member is a bolt 3. Go up and offer the through-hole 31 that communicates to 1 diapire of ring body on the roof of ring body 1, the axis of through-hole 31 is on a parallel with the axis of ring body 1, and through-hole 31 is equipped with 5 along 1 circumference evenly spaced of last ring body, lies in respectively on 1 of last ring body and lies in each and install between the lamella 11. The top wall of the lower installation flap 21 is provided with a threaded hole 32 matched with the bolt 3, and the bolt 3 penetrates through the through hole 31 of the upper ring body 1 and then is in threaded connection with the threaded hole 32 on the lower installation flap 21 spliced into the casing, so that the upper ring body 1 and the lower ring body 2 are fixed.

Referring to fig. 2 and 3, lower mounting petals 21 can be lifted upwardly together with lower ring body 2 before upper mounting petals 11 are lifted upwardly to separate from lower mounting petals 21. Lower installation lamella 21 between the lateral wall that is close to each other on seted up bar hole 71, bar hole 71 along 2 circumference openings of lower ring body wear to another lateral wall of lower installation lamella 21, go up on the lateral wall that is close to each other between the installation lamella 11, and be close to the bottom of installing lamella 11, integrative welding has slider 7, and slider 7 slides and inlays to establish in bar hole 71. A connecting rod 72 is welded between two opposite sliding blocks 7 between the adjacent upper installation flaps 11, and the connecting rod 72 is slidably arranged in the strip-shaped hole 71 in a penetrating manner. Through the setting of connecting rod 72, can strengthen the lifting force of installing lamella 21 down in the ring body 1 lift process, make and protect a section of thick bamboo stable in structure.

Referring to fig. 2 and 3, in order to ensure the sealing property between the splicing seams of the upper installation flap 11, the lower installation flap 21 and the lower ring body 2, splicing grooves 4 are respectively formed in the vertical edges on the two sides of the inner side wall of the lower installation flap 21, and flanges 41 matched with the splicing grooves 4 are integrally welded on the vertical side walls on the two sides of the upper installation flap 11. When the upper installation flap 11 and the lower installation flap 21 are spliced with each other, the inner side walls of the flanging 41, the upper installation flap 11 and the lower installation flap 21 are flatly attached. The bottom of the upper installation flap 11 is welded with an insertion sheet 43 along the circumferential direction of the upper ring body 1, and the top wall of the lower ring body 2 is positioned between the lower installation flaps 21 and is respectively provided with a slot 42 matched with the insertion sheet 43. Three side splicing seams of the upper installation flap 11 can be shielded through the inserting sheet 43 and the flanging 41, and the sealing performance of the pile casing is further improved.

Referring to fig. 2, the bottom of the lower ring body 2 is provided with a cutting edge 5 to break the soil resistance in the process of pressing down the casing. The blade 5 is located the inward flange of lower ring body 2 to extrude earth outside the protective barrel, pressure is lower. The coaxial cover in self circumference is equipped with chimb 6 on the outer wall of lower ring body 2, and the outward flange at the bottom of chimb 6 and top is the inclined plane, is convenient for push down and mention the in-process with earth extrusion to chimb 6 outside protecting a section of thick bamboo to reduce earth and the area of contact who protects a section of thick bamboo outer wall, reduce and protect a section of thick bamboo friction, it is more convenient to make and protect a section of thick bamboo pushing down and promote the in-process.

The implementation principle of the pile foundation construction structure in the embodiment of the application is as follows: before the casing is driven into the ground, the upper ring body 1 and the lower ring body 2 are close to each other, the upper installation clack 11 and the lower installation clack 21 are inserted into each other to form a complete cylindrical casing, the bolt 3 is inserted from the through hole 31 on the upper ring body 1, and the bolt is screwed into the threaded hole 32 on the upper installation clack 11. And then, clamping the upper ring body 1 by using a pile driver, integrally hoisting the pile casing to the position to be formed with the pile, lofting and aligning, and driving the pile casing into the ground.

The pile foundation is driven into the pile casing under the ground, after the foundation pile is poured in the pile casing, the bolts 3 connected between the upper ring body 1 and the lower installation flaps 21 are released before the pile foundation concrete is initially set, and the upper ring body 1 is separated from the lower installation flaps 21. And (3) clamping the upper ring body 1 by using a hoisting device, and pulling the upper ring body 1 to ascend. In the lifting process, the upper mounting petals 11 and the upper ring body 1 are firstly pulled out of the ground upwards, after the upper mounting petals 11 are lifted to the highest point between the lower mounting petals 21, the force is continuously applied to the lower mounting petals 21 through the slide blocks 7 on the upper mounting petals 11, and the lower mounting petals 21 and the lower ring body 2 are lifted from the ground. The upper mounting flap 11 and the lower mounting flap 21 are divided into two parts to be sequentially lifted out of the ground, so that the friction force between the upper mounting flap 11 and the lower mounting flap 21 and concrete in the lifting process of the pile casing is effectively reduced, the pile casing is conveniently lifted out of the ground and recovered, and resources are saved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pile foundation construction structures which characterized in that: including last ring body (1) and lower ring body (2) that the size is the same, vertical rigid coupling has last installation lamella (11) on the diapire of last ring body (1), it is provided with a plurality of along last ring body (1) circumference even interval to go up installation lamella (11), vertical rigid coupling has down installation lamella (21) on the roof of lower ring body (2), installation lamella (21) are provided with a plurality of along the even interval of circumference of lower ring body (2) down, go up installation lamella (11) and the crisscross setting of assembling of installing lamella (21) down, it has slider (7) to go up installation lamella (11) and has set firmly on the lateral wall with installation lamella (21) contact down, slider (7) slide along vertical direction and set up under installation lamella (21), the top of going up ring body (1) is provided with the mounting that is used for connecting installation lamella (21) down.

2. The pile foundation construction structure according to claim 1, wherein: the mounting is bolt (3), through-hole (31) have been seted up along vertical direction on the roof of going up ring body (1), through-hole (31) are provided with a plurality of along last ring body (1) circumference even interval, set up screw hole (32) with bolt (3) looks adaptation down on the roof of installation lamella (21), bolt (3) wear to locate in through-hole (31) and with screw hole (32) threaded connection.

3. The pile foundation construction structure according to claim 1, wherein: the vertical lateral wall of both sides of lower installation lamella (21) is run from opposite directions along vertical direction and is provided with bar hole (71), two adjacent go up the rigid coupling on slider (7) between installation lamella (11) and be equipped with connecting rod (72), connecting rod (72) slide and wear to establish in bar hole (71).

4. The pile foundation construction structure according to claim 1, wherein: the inner side wall of the lower installation flap (21) is provided with splicing grooves (4) along the vertical edges of the two sides, and flanges (41) matched with the splicing grooves (4) are fixedly connected to the vertical side walls of the two sides of the upper installation flap (11).

5. The pile foundation construction structure according to claim 4, wherein: a slot (42) is formed in the top wall of the lower ring body (2), and an inserting piece (43) matched with the slot (42) is fixedly connected to one end, far away from the upper ring body (1), of the upper installation flap (11).

6. The pile foundation construction structure according to claim 1, wherein: the inner edge of the bottom end of the lower ring body (2) is set to be a cutting edge (5).

7. The pile foundation construction structure according to claim 1, wherein: the outer wall of lower ring body (2) is gone up and is set firmly chimb (6) along self circumference is coaxial, the outer border of the diapire of chimb (6) is established to the inclined plane.

8. The pile foundation construction structure according to claim 7, wherein: the outer edge of the top wall of the convex edge (6) is an inclined surface.