CN218346193U - Enclosure structure of foundation pit occluded pile foundation - Google Patents

Abstract

The application relates to the field of building engineering technology, and particularly discloses a building enclosure structure of a foundation pit occluded pile foundation, which comprises a supporting seat arranged on the bottom wall of a foundation pit, wherein a plurality of supporting rods used for supporting the inner wall of a foundation pit body are arranged on the supporting seat in a lifting manner, and a driving assembly used for driving the supporting rods to lift is arranged on the supporting seat; the end part of the supporting rod is fixedly connected with a butting plate which is used for butting against the inner wall of the foundation pit; articulated on the butt joint board have and be used for the reinforcing the stiffener of butt joint board stability, be provided with on the supporting seat and be used for fixing the fixed subassembly of stiffener. This application has the bending strength of increase secant pile, improves the effect of the stability of the soil body around the foundation ditch.

Description

Enclosure structure of foundation pit occluded pile foundation

Technical Field

The application relates to the field of constructional engineering technology, in particular to a building envelope of a foundation pit interlock pile foundation.

Background

The foundation pit is a space below the ground excavated for the construction of buildings, building foundations and basements in the building engineering; the secant pile is a form of a foundation pit row pile enclosure body, the reinforced concrete pile and the plain concrete pile are cut and seceded, pile walls which are mutually seceded are formed by arranging the piles, shearing force can be transmitted between the piles to a certain degree, and the water stopping effect can be achieved while soil is retained.

When the existing secant pile is constructed, a plain concrete pile is constructed firstly and then a reinforced concrete pile is constructed, and the construction of the reinforced concrete pile is completed after the concrete of the plain concrete pile is initially set and before final setting. The plain concrete pile and the reinforced concrete pile are constructed by adopting a full casing drilling machine, the concrete of the intersection part of the adjacent plain concrete piles is cut off in the drilling process, and the reinforced concrete pile is poured, so that the plain concrete pile and the reinforced concrete pile are occluded.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the secant pile is constructed, when the soil foundation of a construction site is weak or the excavation depth of a foundation pit is too large, the bending strength of the secant pile per se is difficult to support the surrounding foundation, and the stability of the soil body around the foundation pit is not high; therefore, an enclosure structure for supporting the soil around the foundation pit needs to be arranged.

SUMMERY OF THE UTILITY MODEL

In order to increase the bending strength of secant pile, improve the stability of the soil body around the foundation ditch, this application provides a retaining structure of foundation ditch secant pile foundation.

The application provides a pair of envelope of foundation ditch interlock pile foundation adopts following technical scheme:

a building enclosure structure for a foundation pit occluded pile foundation comprises a supporting seat arranged on the bottom wall of a foundation pit, wherein a plurality of supporting rods for supporting the inner wall of a foundation pit body are arranged on the supporting seat in a lifting mode, and a driving assembly for driving the supporting rods to lift is arranged on the supporting seat;

the end part of the supporting rod is fixedly connected with a butting plate which is used for butting against the inner wall of the foundation pit;

articulated on the butt joint board have be used for the reinforcing bar of reinforcing butt joint board stability, be provided with on the supporting seat and be used for fixing the fixed subassembly of reinforcing bar.

By adopting the technical scheme, the driving assembly drives the supporting rod to vertically lift, so that the supporting rod is lifted to the middle position suitable for the height of the foundation pit, the supporting rod supports the abutting plate, and the supporting rod maintains the abutting effect of the supporting rod on the abutting plate and the abutting plate maintains the abutting effect on the inner wall of the foundation pit; through the fixed stiffener of fixed subassembly again, the stiffener further makes the butt stability reinforcing of butt board to the foundation ditch inner wall, and then increases the bending strength of interlock stake, improves the stability of the soil body around the foundation ditch.

Optionally, the driving assembly includes a screw rotatably disposed on the supporting seat and a threaded cylinder adapted to the screw thread; a driving piece for driving the screw rod to rotate is arranged on the supporting seat; the supporting seat is provided with a limiting assembly used for limiting the rotation of the threaded cylinder.

Through adopting above-mentioned technical scheme, spacing subassembly restriction screw thread section of thick bamboo rotates to when starting the driving piece and driving the screw rod and rotate, the screw thread section of thick bamboo can realize sliding along its length direction on the screw rod periphery under the limiting action of spacing subassembly, and then drives the bracing piece on it through the screw thread section of thick bamboo and go up and down, thereby can support bracing piece and last butt plate tightly in foundation ditch inner wall different positions according to the height of foundation ditch degree of depth and interlock stake, promote the stability of butt plate to interlock stake enclosure.

Optionally, the limiting component comprises a plurality of limiting rods fixedly connected to the supporting seat, the threaded cylinder is provided with a limiting groove along the length direction of the screw, and one end of each limiting rod is matched with the sliding of the limiting groove.

By adopting the technical scheme, when the end part of the limiting rod is clamped into the limiting groove, the outer wall of the limiting rod is abutted against the side wall of the limiting groove, so that the limiting rod can interfere with the rotation of the threaded barrel; and then when realizing rotating the screw rod, the screw thread section of thick bamboo can vertically slide on the screw rod.

Optionally, a mounting rod is fixedly connected to the outer side wall of the threaded barrel, the supporting rod is slidably arranged on the mounting rod, and a fastening piece used for achieving locking after the sliding of the mounting rod and the supporting rod is arranged between the mounting rod and the supporting rod.

Through adopting above-mentioned technical scheme, the installation pole realizes that the bracing piece is adjustable to be installed on a screw thread section of thick bamboo, and is different according to the size of different foundation pits, stimulates the bracing piece for the bracing piece slides on the installation pole, supports the foundation pit lateral wall tightly until the butt joint board of bracing piece tip, reuses the fastener with bracing piece and installation pole locking, can realize that the bracing piece is applicable to not unidimensional foundation pit inner wall, realizes the support to the interlock pile foundation, improves the stability of the soil body around the foundation pit.

Optionally, the threaded barrel is provided with a plurality of reinforcing seats for increasing the contact area between the mounting rod and the threaded barrel.

Through adopting above-mentioned technical scheme, strengthen the seat and increased the area of contact of installation pole and screw thread section of thick bamboo outer wall for the fixed more firm of installation pole, thereby the installation pole is more firm to the support of bracing piece, and then more firm when the bracing piece supports foundation ditch inner wall.

Optionally, the supporting seat is provided with a strip-shaped groove along the length direction of the corresponding supporting rod, and the fixing assembly comprises a connecting plate in sliding fit with the strip-shaped groove and a connecting piece for locking the connecting plate to the bottom wall of the strip-shaped groove; the connecting plate is hinged with the end part, far away from the abutting plate, of the reinforcing rod.

By adopting the technical scheme, after the supporting rod is lifted to the height suitable for fixing the foundation pit, the connecting plate is pulled to be positioned at different positions of the strip-shaped groove, and the connecting plate is locked at different positions of the bottom wall of the strip-shaped groove by using the connecting piece; simultaneously, the bar groove lateral wall is inconsistent with the connecting plate lateral wall for the connecting plate does not slide along bar groove width direction, and then makes the butt stability of butt joint board to the foundation ditch inner wall soil body higher.

Optionally, a plurality of anchor inserted bars are fixedly connected to the bottom of the supporting seat, and the end portions of the anchor inserted bars are conical ends.

Through adopting above-mentioned technical scheme, the circular cone end setting of anchor inserted bar makes it more laborsaving when inserting the soil body, and the antidumping ability of base is higher when making the base be fixed in the foundation ditch diapire through the anchor inserted bar.

Optionally, the end portion of the abutting plate is fixedly connected with a plurality of strip-shaped protrusions.

Through adopting above-mentioned technical scheme, the protruding frictional force that has increased between butt joint board and the foundation ditch soil body inner wall of bar for the butt joint board supports the difficult emergence of tight in-process and slides, has strengthened its butt effect to foundation ditch soil body inner wall, promotes the stability to the enclosure of interlock stake.

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

1. the driving assembly driving rod and the abutting plate are lifted to a proper height, the supporting rod maintains the abutting effect on the abutting plate, and the abutting plate maintains the abutting effect on the inner wall of the foundation pit; the fixing component is used for fixing the reinforcing rod, and the reinforcing rod further enables the abutting stability of the abutting plate to the inner wall of the foundation pit to be enhanced, so that the bending strength of the secant pile is increased, and the stability of a soil body around the foundation pit is improved;

2. the threaded cylinder slides along the length direction of the screw rod under the limiting action of the limiting assembly, and then the threaded cylinder drives the supporting rod on the threaded cylinder to lift, so that the supporting rod and the upper abutting plate thereof can be abutted to different positions of the inner wall of the foundation pit according to the depths of the foundation pit and the secant pile, and the stability of the abutting plate for enclosing the secant pile is improved;

3. strengthen the seat and increased the area of contact of installation pole with the screw thread section of thick bamboo outer wall for the fixed of installation pole is more firm, thereby the support of installation pole to the bracing piece is more firm, and then the bracing piece is more firm when supporting the foundation ditch inner wall.

Drawings

Fig. 1 is a schematic view of an installation structure installed in a foundation pit body according to an embodiment of the present application.

Fig. 2 is a schematic overall structure diagram in the embodiment of the present application.

Fig. 3 is a schematic structural diagram of the driving assembly, the limiting assembly, the supporting rod and the mounting rod in the embodiment of the present application.

Fig. 4 is an exploded view of the reinforcing rod and the supporting seat in the embodiment of the present application.

Reference numerals: 1. a supporting seat; 11. anchoring the inserted rod; 111. a conical end; 12. a strip-shaped groove; 13. a bearing; 14. connecting the threaded hole; 2. a support bar; 21. mounting holes; 22. fastening a bolt; 23. a through hole; 3. a butt joint plate; 31. strip-shaped bulges; 4. a drive assembly; 41. a screw; 411. a limiting plate; 42. a threaded barrel; 421. a limiting groove; 43. a motor; 5. a reinforcing bar; 6. a fixing assembly; 61. a connecting plate; 62. a connecting bolt; 7. a limiting component; 71. a limiting rod; 711. a long side; 712. a short side; 8. mounting a rod; 81. locking the threaded hole; 82. a reinforcement base; 9. a foundation pit body; 91. an occlusive pile.

Detailed Description

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

The embodiment of the application discloses envelope of foundation ditch interlock pile foundation.

Referring to fig. 1 and 2, the envelope of foundation ditch interlock pile foundation is including setting up in supporting seat 1 of 9 diapire of foundation ditch body, and supporting seat 1 sets up to the square platform type fixing base that has the cavity for inside, and 1 bottom rigid couplings of supporting seat have a plurality of anchor inserted bars 11, and the tip of anchor inserted bar 11 sets up to circular cone end 111, can wholly carry out stable support to supporting seat 1 in the earth that inserts 9 diapalls of foundation ditch body through anchor inserted bar 11.

Referring to fig. 1 and fig. 2, 1 goes up and down to be provided with a plurality of bracing pieces 2 on the supporting seat, the length direction of the length direction perpendicular to secant pile 91 of bracing piece 2 sets up, the tip rigid coupling of bracing piece 2 has and is used for supporting tight butt board 3 with foundation ditch body 9 inner wall, for the frictional force when increasing butt board 3 and foundation ditch body 9 inner wall soil body support tightly, the tip rigid coupling of butt board 3 has a plurality of bar archs 31 that are used for increasing frictional force between foundation ditch body 9 inner wall and the butt board 3, the length direction of bar arch 31 is unanimous with the length direction of butt board 3.

The number of the supporting seats 1 and the number of the supporting rods 2 can be set according to specific conditions, the supporting seats are arranged corresponding to different inner walls of the foundation pit body 9 according to specific construction conditions, and if the inner wall of the foundation pit body 9 is constructed on a single side, only one supporting rod 2 can be connected; therefore, the enclosure structure does not influence other construction processes in the foundation pit body 9.

Referring to fig. 2 and 3, a driving assembly 4 for driving the supporting rod 2 to ascend and descend is arranged on the supporting seat 1; articulated on the butt joint plate 3 have be used for strengthening 3 stable stiffeners 5 of butt joint plate, be provided with the fixed subassembly 6 that is used for fixed stiffener 5 on the supporting seat 1.

The driving component 4 comprises a screw 41 rotatably arranged on the supporting seat 1 and a thread cylinder 42 matched with the screw 41 in a thread manner, and the external shape of the thread cylinder 42 can be a square cylinder, a cylindrical cylinder or other shapes; the supporting seat 1 is rotatably provided with a bearing 13, the screw rod 41 is rotatably connected with the supporting seat 1 through the bearing 13, one end of the screw rod 41 penetrates out of the thread cylinder 42, and the end of the screw rod 41 is provided with a limiting plate 411 for limiting the thread cylinder 42 to slide out.

The supporting seat 1 is further provided with a driving element for driving the screw rod 41 to rotate, and the driving element is a motor 43 arranged in the cavity of the supporting seat 1 in the embodiment; wherein, the shell of the motor 43 is fixedly connected to the top wall of the cavity of the supporting seat 1, and the output end of the motor 43 is coaxially and fixedly connected with the end part of the screw rod 41.

Referring to fig. 2 and 3, the supporting seat 1 is provided with a limiting assembly 7 for limiting the rotation of the threaded cylinder 42. The limiting assembly 7 comprises a plurality of limiting rods 71 fixedly connected to the supporting seat 1, and the number of the limiting rods 71 is preferably two in the embodiment; the limiting rod 71 is L-shaped as a whole and comprises a long side 711 arranged along the length direction of the screw rod 41 and a short side 712 vertically fixed at the end part of the long side 711; a limiting groove 421 which is matched with the short side 712 of the limiting rod 71 in a sliding manner is formed in the threaded cylinder 42 along the length direction of the screw rod 41, the end part of the short side 712 of the limiting rod 71 is positioned in the limiting groove 421, and the outer wall of the end part of the short side 712 of the limiting rod 71 is abutted against the side wall of the limiting groove 421; thus, when the screw 41 rotates, the limiting rod 71 limits the rotation of the threaded cylinder 42, so that the threaded cylinder 42 is attached to the end of the short side 712 of the limiting rod 71 and slides vertically.

Referring to fig. 2 and 3, the outer side wall of the threaded cylinder 42 is fixedly connected with the mounting rod 8 perpendicular to the axis thereof, the end face of the support rod 2 is provided with a mounting hole 21 matched with the mounting rod 8 in a sliding manner along the length direction thereof, and the support rod 2 is slidably sleeved on the outer peripheral wall of the mounting rod 8 through the mounting hole 21.

Simultaneously in order to improve the stability that installation pole 8 and bracing piece 2 are connected, both shapes are preferably square for both possess certain twisting resistance and shearing resistance.

Referring to fig. 2 and 3, a fastening piece for realizing locking after the two slide is arranged between the mounting rod 8 and the support rod 2; in the present embodiment, the fastening member is a fastening bolt 22, wherein a plurality of locking threaded holes 81 are formed in the top wall of the mounting rod 8 along the length direction thereof, a plurality of through holes 23 are coaxially formed in the supporting rod 2 corresponding to the plurality of locking threaded holes 81, and the fastening bolt 22 is in threaded connection with the locking threaded holes 81 after passing through the through holes 23; considering that the widths of different foundation pit bodies 9 are different, the plurality of locking threaded holes 81 can be selected to be formed in non-equidistant mode, and therefore the abutting effect of the occlusive piles 91 and the inner wall of the foundation pit body 9 by the lifting device 3 is improved.

In addition, referring to fig. 2 and 3, in order to improve the connection stability between the mounting rod 8 and the threaded cylinder 42, a plurality of reinforcing seats 82 are provided on the threaded cylinder 42, in this embodiment, the number of the reinforcing seats 82 is preferably four, and four reinforcing seats 82 are provided around the mounting rod 8; the reinforcing seat 82 is integrally triangular, wherein the side ends corresponding to the short sides of the two triangles of the reinforcing seat 82 are respectively and fixedly connected with the outer wall of the mounting rod 8 and the outer peripheral wall of the threaded cylinder 42, so that the connecting area of the mounting rod 8 and the threaded cylinder 42 is increased, and the mounting rod 8 has a certain shearing resistance in the longitudinal direction.

Referring to fig. 3 and 4, be convenient for the connection of stiffener 5 is fixed, strip groove 12 has been seted up along the length direction of bracing piece 2 on the supporting seat 1, a plurality of connecting screw holes 14 have been seted up to strip groove 12 diapire non-equidistant, fixed subassembly 6 includes connecting plate 61 with the adaptation that slides of strip groove 12 and is used for locking connecting plate 61 in the connecting piece of strip groove 12 diapire, the connecting piece sets up to connecting bolt 62, connecting bolt 62 passes connecting plate 61 and is located strip groove 12 diapire threaded connection in connecting screw hole 14 after, and then with connecting plate 61 locking in strip groove 12 department on supporting seat 1.

Referring to fig. 4, the connecting plate 61 is shaped like a "T" and includes a horizontal section and a vertical section vertically fixed to the end of the horizontal section, and the strip-shaped groove 12 is provided with a "T" shaped groove corresponding to the horizontal section, so that when the connecting plate 61 slides into the strip-shaped groove 12 from the notch of the strip-shaped groove 12, the horizontal section of the connecting plate 61 abuts against the inner wall of the strip-shaped groove 12, and the connecting plate 61 does not slide out from the opening at the upper end of the strip-shaped groove 12; simultaneously, the movement of the connecting plate 61 along the width direction of the strip-shaped groove 12 is limited, so that the reinforcing effect of the reinforcing rod 5 on the abutting plate 3 is more stable.

The implementation principle of the enclosure structure of foundation pit secant pile 91 base of the embodiment of the application is as follows: during the in-service use, according to the secant pile 91 that needs strutted and the wall quantity that foundation ditch body 9 corresponds different, select the supporting seat 1 with different quantity, then fix the anchor inserted bar 11 with supporting seat 1 and insert to the diapire earth depths of foundation ditch body 9.

Starting the motor 43 to drive the screw rod 41 to rotate, and enabling the threaded cylinder 42 to ascend and descend to the proper height of the foundation pit body 9 through the rotation of the screw rod 41; the supporting rod 2 is pulled to ensure that the end part of the supporting rod 2 just supports against the inner wall of the foundation pit body 9; at this time, the support rod 2 and the mounting rod 8 are fixed by the fastening bolt 22, so that the inner wall of the foundation pit body 9 is abutted by the abutting plate 3, the bending strength of the occlusive pile 91 is increased, and the stability of the soil body around the foundation pit body 9 is improved.

Finally, slide in the suitable position of bar groove 12 with connecting plate 61, support tightly until connecting plate 61 and supporting seat 1, use connecting bolt 62 to lock connecting plate 61 on supporting seat 1 to realize the fixed of stiffener 5, further increased 3 butt stability to foundation ditch body 9 inner walls of butt joint board, improved the bending strength of interlock stake 91.

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: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a building envelope of foundation ditch interlock pile foundation which characterized in that: the support structure comprises a support seat (1) arranged on the bottom wall of a foundation pit body (9), wherein a plurality of support rods (2) used for supporting the inner wall of the foundation pit body (9) are arranged on the support seat (1) in a lifting mode, and a driving assembly (4) used for driving the support rods (2) to lift is arranged on the support seat (1);

the end part of the supporting rod (2) is fixedly connected with a butt plate (3) which is used for tightly abutting against the inner wall of the foundation pit body (9);

articulated on butt joint board (3) have be used for the reinforcing bar (5) of reinforcing butt joint board (3) stability, be provided with on supporting seat (1) and be used for fixing fixed subassembly (6) of reinforcing bar (5).

2. The enclosure structure of a foundation pit interlock pile foundation of claim 1, characterized in that: the driving assembly (4) comprises a screw rod (41) rotatably arranged on the supporting seat (1) and a thread cylinder (42) matched with the screw rod (41) in a thread manner; a driving piece for driving the screw rod (41) to rotate is arranged on the supporting seat (1); the supporting rod (2) is detachably arranged on the threaded cylinder (42), and the supporting seat (1) is provided with a limiting component (7) used for limiting the rotation of the threaded cylinder (42).

3. The enclosure structure of a foundation ditch interlock pile foundation of claim 2, characterized in that: spacing subassembly (7) include a plurality of rigid couplings in gag lever post (71) on supporting seat (1), seted up on a screw thread section of thick bamboo (42) and followed screw rod (41) length direction's spacing groove (421), gag lever post (71) one end with spacing groove (421) adaptation that slides.

4. The enclosure structure of a foundation ditch interlock pile foundation of claim 2, characterized in that: the rigid coupling has installation pole (8) on screw thread section of thick bamboo (42) lateral wall, bracing piece (2) slide set up in on the installation pole (8), installation pole (8) with be provided with between bracing piece (2) and be used for realizing both fasteners of sliding back locking.

5. The enclosure structure of a foundation pit engagement pile foundation of claim 4, wherein: the threaded barrel (42) is provided with a plurality of reinforcing seats (82) used for increasing the contact area of the mounting rod (8) and the threaded barrel (42).

6. The enclosure structure of a foundation pit engagement pile foundation of claim 1, wherein: the supporting seat (1) is provided with a strip-shaped groove (12) along the length direction of the corresponding supporting rod (2), and the fixing component (6) comprises a connecting plate (61) which is in sliding fit with the strip-shaped groove (12) and a connecting piece which is used for locking the connecting plate (61) on the bottom wall of the strip-shaped groove (12); the connecting plate (61) is hinged with the end part, far away from the abutting plate (3), of the reinforcing rod (5).

7. The enclosure structure of a foundation pit interlock pile foundation of claim 1, characterized in that: the supporting seat (1) bottom rigid coupling has a plurality of anchor inserted bars (11), the tip of anchor inserted bar (11) sets up to cone end (111).

8. The enclosure structure of a foundation pit engagement pile foundation of claim 1, wherein: the end part of the abutting plate (3) is fixedly connected with a plurality of strip-shaped bulges (31).

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