CN220166939U

CN220166939U - Deep foundation pit supporting structure capable of preventing deformation

Info

Publication number: CN220166939U
Application number: CN202321351526.5U
Authority: CN
Inventors: 宫海鹏; 任运超; 王坤明; 陈哲心; 姜建辉
Original assignee: Jinan Kingyue Highway Engineering Co Ltd
Current assignee: Jinan Kingyue Highway Engineering Co Ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-12-12
Anticipated expiration: 2033-05-29

Abstract

The utility model provides a deep foundation pit supporting structure capable of preventing deformation, and relates to the technical field of foundation pit construction. Including first curb plate, first base, second curb plate, second base and a plurality of connecting piece, first curb plate is connected with deep basal pit inside wall, first base sets up the one end of bottom surface and first base and the one end of first curb plate in deep basal pit and is connected, the second curb plate sets up and is connected with first curb plate through the connecting piece with first curb plate interval, the second base sets up and is connected with the one end of second curb plate in deep basal pit bottom surface and second base. Through being provided with a plurality of connecting pieces between first curb plate and second curb plate, the second curb plate further supports a plurality of connecting pieces, avoids leading to first curb plate and connecting piece to produce the problem of warp because of the support time is long, has improved the steadiness when first curb plate supports the deep basal pit inside wall.

Description

Deep foundation pit supporting structure capable of preventing deformation

Technical Field

The utility model relates to the technical field of foundation pit construction, in particular to a deep foundation pit supporting structure capable of preventing deformation.

Background

The foundation pit must arouse the deformation of surrounding soil body in the excavation process, produces the influence to surrounding building and underground pipeline, serious will endanger its normal use or safety, in order to avoid this kind of condition can increase the support system in deep basal design and pit construction and stabilize foundation pit safety, mainly has three types at present: flat bracing, diagonal bracing and reverse anchoring techniques. The flat support is widely applied to deep foundation pits at present, but the flat support occupies a large amount of space in the pit, has long construction period, is unfavorable for the soil digging operation, has large potential safety hazard during later dismantling, and not only improves the engineering cost, but also is unfavorable for environmental protection; the reverse anchoring technology is a new technology popularized in recent years, and has the advantages that the foundation pit is open and open, the construction of the soil and the structure is convenient, but the group anchoring effect is easy to generate, the safety coefficient is small, the stability is poor, and the construction process is tedious and long. The bracing is that adopts L type curb plate to stabilize, adopts the bracing piece of slope to support L type curb plate, and although the bracing piece can play the effect that supports to stabilize to a certain extent, the lateral wall of deep basal pit causes the extrusion to L type curb plate, and the bracing piece is little with the area of action of L type curb plate, has long probably can make L shape lateral wall take place deformation phenomenon and bracing piece take place to warp, leads to the supporting effect variation.

Disclosure of Invention

In order to solve the problems, the utility model provides a deformation-preventing deep foundation pit supporting structure, which comprises a first side plate, a first base, a second side plate, a second base and a plurality of connecting pieces, wherein the first side plate is connected with the inner side wall of a deep foundation pit, the first base is arranged on the bottom surface of the deep foundation pit, one end of the first base is connected with one end of the first side plate, the second side plate is arranged at intervals with the first side plate and is connected with the first side plate through the connecting pieces, and the second base is arranged on the bottom surface of the deep foundation pit and is connected with one end of the second side plate.

Compared with the prior art, the utility model has at least one of the following beneficial effects:

(1) According to the deep foundation pit supporting structure capable of preventing deformation, the plurality of connecting pieces are connected between the first side plate and the second side plate, the second side plate further supports the plurality of connecting pieces, the problem that the first side plate and the connecting pieces deform due to long supporting time is avoided, and the stability of the first side plate when the first side plate abuts against the inner side wall of the deep foundation pit is improved.

(2) According to the deep foundation pit supporting structure capable of preventing deformation, the inclined supporting rods are arranged on the second side plate, so that the deep foundation pit supporting structure can be further stabilized.

(3) According to the deep foundation pit supporting structure capable of preventing deformation, the fixed piles are arranged on the first base, the second base and the third base, so that displacement movement of the base and the bottom surface of the deep foundation pit is avoided, and supporting stability is further improved.

(4) According to the deformation-preventing deep foundation pit supporting structure, the first connecting piece and the second connecting piece are arranged at a certain angle, so that the supporting strength of the deep foundation pit supporting structure is further improved.

(5) According to the deformation-preventing deep foundation pit supporting structure, the plurality of connecting pieces with adjustable widths are arranged, so that the widths of the connecting pieces can be adjusted adaptively according to the heights of the inner side walls of the deep foundation pit.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 illustrates an exemplary embodiment of a schematic view of a deformation-preventing deep foundation pit support structure of the present utility model;

FIG. 2 illustrates another exemplary embodiment of a deep foundation pit support structure schematic of the present utility model that prevents deformation;

fig. 3 illustrates an exemplary embodiment of a cross-sectional view of a connector in a deformation-preventing deep foundation pit support structure of the present utility model.

Reference numerals illustrate:

1-a first side plate; 2-a first base; 3-a second side plate; 4-a second base; a 5-connector; 6-a diagonal support bar; 7-a third base; 8-ground nails; 9-piercing; 501-a first connector; 502-a second connector; 503-an inner rod; 504-a sleeve; 505-pins.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In a first exemplary embodiment of the present utility model, a deep foundation pit supporting structure for preventing deformation includes a first side plate, a first base, a second side plate, a second base and a plurality of connecting members, wherein the first side plate is connected with an inner side wall of a deep foundation pit, the first base is disposed at a bottom surface of the deep foundation pit, one end of the first base is connected with one end of the first side plate, the second side plate is disposed at an interval with the first side plate and is connected with the first side plate through the connecting members, and the second base is disposed at the bottom surface of the deep foundation pit and is connected with one end of the second side plate. Furthermore, the first side plate and the second side plate can be arranged in parallel, the setting position of the second side plate can be adjusted according to the height of the inner side wall of the deep foundation pit, when the deep foundation pit is supported, the inner side wall of the deep foundation pit extrudes the first side plate, the extrusion force applied to the first side plate is unbalanced, and the first side plate is easy to deform.

Specifically, deep basal pit supporting construction still includes bracing piece and third base, the third base sets up the bottom surface at deep basal pit, the one end of bracing piece is connected with the other end of second curb plate, the other end and the third base of bracing piece are connected. Furthermore, in order to further stabilize the deep foundation pit supporting structure, a diagonal bracing rod can be arranged on the second side plate, one end of the diagonal bracing rod is fixed on the second side plate, the other end of the diagonal bracing rod is fixed on the third base, and the fixing can be welding fixing, clamping groove fixing and hinging fixing. However, the present utility model is not limited thereto.

Specifically, the first base, the second base and the third base may be provided with fixing piles. For example, the fixing piles may be ground nails, one ground nail may be disposed on the first base, one ground nail may be disposed at each end of the second base, and one ground nail may be disposed at each end of the third base, however, the present utility model is not limited thereto. The first base, the second base and the third base may be made of steel or cement, and the first base, the second base and the third base may be integrally connected or connected to each other, however, the present utility model is not limited thereto. The fixed pile can consolidate the connection of first base and deep basal pit bottom surface, and the connection of second base and deep basal pit bottom surface consolidates, and the connection of third base and deep basal pit bottom surface consolidates, avoids first base, second base, third base and deep basal pit bottom surface to take place the displacement removal in the support in-process, can further improve the stability of strutting.

Specifically, reinforcing apparatus can be set up to first side board and deep basal pit inside wall junction, can set up anti-skidding structure on the reinforcing apparatus. For example, the reinforcing device may be a spike, and in order to avoid the situation that separation may occur between the first side plate and the inner side wall of the deep foundation pit in the supporting process, a plurality of spikes may be welded from top to bottom on the other surface of the first side plate, where the other surface refers to the surface that abuts against the inner side wall of the deep foundation pit, and a plurality of barbs are disposed along the extending direction of the spikes.

Specifically, the plurality of connecting pieces may each include a first connecting piece and a second connecting piece, and the first connecting piece and the second connecting piece are disposed at a certain angle. For example, in order to further improve the strength of the supporting structure, the first connecting piece is obliquely arranged between the first side plate and the second side plate, one end of the first connecting piece is arranged on the first side plate, the other end of the first connecting piece is arranged on the second side plate, the second connecting piece is mutually perpendicular to the first side plate, one end of the second connecting piece is arranged on the first side plate, and the other end of the second connecting piece is connected with the other end of the first connecting section and is arranged on the second side plate. Or the first and second connection members are disposed parallel to each other, however, the present utility model is not limited thereto.

Specifically, the plurality of connecting pieces can include interior pole, sleeve, interior pole pinhole, sleeve pinhole and pin, interior pole is connected on first curb plate, telescopic connection is on the second curb plate, interior pole cup joints in the sleeve is inside. Further, one end of the inner rod can be connected to the first side plate through a screw, the other end of the inner rod is sleeved at one end of the sleeve, the other end of the sleeve can be connected to the second side plate through a screw, and a plurality of pin holes are formed in the inner rod. The sleeve is provided with a plurality of pin holes, and after the relative positions of the first side plate and the second side plate are adjusted, the sleeve can be fixed through pins. When the height of the inner side wall of the deep foundation pit is higher, the width of the first side plate and the width of the second side plate can be correspondingly increased by adjusting the inner rod.

Specifically, solar warning light can be set up at the top of first curb plate. The solar warning lamp can be fixedly arranged at the top of the first side plate through bolts. The height of the first side plate is larger than that of the deep foundation pit, so that the deep foundation pit can not shade sunlight shining on the solar warning lamp, the solar warning lamp can absorb sunlight in daytime, warning light can be emitted at night, and the effect of reminding and lighting is achieved for pedestrians of accessories.

FIG. 1 illustrates an exemplary embodiment of a schematic view of a deformation-preventing deep foundation pit support structure of the present utility model; FIG. 2 illustrates another exemplary embodiment of a deep foundation pit support structure schematic of the present utility model that prevents deformation; fig. 3 illustrates an exemplary embodiment of a cross-sectional view of a connector in a deformation-preventing deep foundation pit support structure of the present utility model.

In a second exemplary embodiment of the present utility model, referring to fig. 1, a deformation-preventing deep foundation pit supporting structure includes a first side plate 1, a first base 2, a second side plate 3, a second base 4, and a plurality of connecting pieces 5, wherein the first side plate 1 is connected with an inner side wall of the deep foundation pit, the first base 2 is disposed at a bottom surface of the deep foundation pit, one end of the first base 2 is connected with one end of the first side plate 1, the second side plate 3 is disposed at a certain interval with the first side plate 1 and is connected with the first side plate 1 through the plurality of connecting pieces 5, the plurality of connecting pieces 5 are parallel to each other and are disposed between the first side plate 1 and the second side plate 3 at a certain interval, and the second base 2 is disposed at a bottom surface of the deep foundation pit and is connected with one end of the second side plate 3.

The second side plate 3 is provided with a diagonal bracing bar 6, one end of the diagonal bracing bar 6 is fixed on the second side plate 3, and the other end of the diagonal bracing bar 6 is fixed on the third base 7.

The first base 2, the second base 4 and the third base 7 are all provided with ground nails 8. Referring to fig. 1, a ground nail 8 is disposed on the first base 2, two ground nails 8 are disposed at two ends of the second base 4, two ground nails 8 are disposed at two ends of the third base 7, the ground nails 8 can strengthen the connection between the first base 2 and the bottom surface of the deep foundation pit, the connection between the second base 4 and the bottom surface of the deep foundation pit is strengthened, the connection between the third base 7 and the bottom surface of the deep foundation pit is strengthened, displacement movement of the first base 2, the second base 4, the third base 7 and the bottom surface of the deep foundation pit in the supporting process is avoided, supporting stability can be further improved through fixing piles, and the possibility of deformation of a supporting structure is reduced.

Referring to fig. 1, a plurality of spikes 9 are provided at the junction of the first side plate 1 and the inner side wall of the deep foundation pit, the spikes 9 are welded on the first side plate 1 from top to bottom in sequence, and a plurality of barbs are provided along the extending direction of the spikes 9.

Referring to fig. 3, the plurality of connection members may include an inner rod 503, a sleeve 504, an inner rod pin hole (not shown), a sleeve pin hole (not shown), and a pin 505, one end of the inner rod 503 may be connected to the first side plate 1 by a screw, the other end of the inner rod 503 may be sleeved in the sleeve, the other end of the sleeve may be connected to the second side plate 3 by a screw, and the inner rod 503 may be provided with a plurality of inner rod pin holes. The sleeve 504 is provided with a plurality of sleeve pin holes, and after the relative positions of the first side plate 1 and the second side plate 3 are adjusted, the pin 505 can be inserted into the inner rod pin holes and the sleeve pin holes to be fixed. When the height of deep basal pit inside wall is higher, can increase the width of first curb plate and second curb plate through adjusting interior pole, improve the support intensity.

In another exemplary embodiment of the deformation-preventing deep pit supporting structure of the present utility model, the plurality of connection members 5 may include a first connection member 501 and a second connection member 502. Referring to fig. 2, a first connecting member 501 is obliquely disposed between a first side plate 1 and a second side plate 3, one end of the first connecting member 501 is disposed on the first side plate 1, the other end of the first connecting member 501 is disposed on the second side plate 3, a second connecting member 502 is perpendicular to the first side plate 1 and the second side plate 3, one end of the second connecting member 502 is disposed on the first side plate 1, the other end of the second connecting member 502 is connected with the other end of the first connecting section 501 and disposed on the second side plate 3, and the shape enclosed by the first connecting member 501 and the second connecting member 502 adjacent to each other is a right triangle. Compared with the parallel arrangement of the first connecting piece and the second connecting piece, the first connecting piece 501 and the second connecting piece 502 are arranged at a certain angle, so that the deformation resistance of the supporting structure can be improved.

Referring to fig. 2, the first base 2, the second base 4 and the third base 7 may also be integrally connected, so as to further improve the stability of the support.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides a prevent deep basal pit supporting construction of deformation, its characterized in that, prevent deep basal pit supporting construction of deformation includes first curb plate, first base, second curb plate, second base and a plurality of connecting piece, first curb plate is connected with deep basal pit inside wall, first base sets up the bottom surface and the one end of first base is connected with the one end of first curb plate at deep basal pit, the second curb plate sets up and is connected with first curb plate through the connecting piece with first curb plate interval, the second base sets up and is connected with the one end of second curb plate at deep basal pit bottom surface and second base.

2. The deformation-preventing deep foundation pit supporting structure according to claim 1, further comprising a diagonal brace and a third base, wherein the third base is arranged on the bottom surface of the deep foundation pit, one end of the diagonal brace is connected with the other end of the second side plate, and the other end of the diagonal brace is connected with the third base.

3. The deformation-preventing deep foundation pit supporting structure according to claim 1 or 2, wherein the first base, the second base and the third base are provided with fixing piles.

4. The deformation-preventing deep foundation pit supporting structure according to claim 1, wherein a reinforcing device is arranged at the joint of the first side plate and the inner side wall of the deep foundation pit, and an anti-slip structure is arranged on the reinforcing device.

5. The deformation-preventing deep foundation pit supporting structure according to claim 1, wherein the plurality of connecting members each comprise a first connecting member and a second connecting member, and the first connecting member and the second connecting member are disposed at an angle.

6. The deformation-preventing deep foundation pit supporting structure according to claim 1, wherein the plurality of connecting pieces comprise inner rods, sleeves, inner rod pin holes, sleeve pin holes and pins, the inner rods are connected to the first side plate, the sleeves are connected to the second side plate, and the inner rods are sleeved inside the sleeves.

7. The deformation-preventing deep foundation pit supporting structure according to claim 1, wherein the top of the first side plate is provided with a solar warning lamp.

8. The deformation preventing deep pit supporting structure of claim 1, wherein the first base and the second base are connected to each other.