CN220746944U - Foundation pit supporting device for preventing foundation pit from collapsing - Google Patents

Abstract

The utility model discloses a foundation pit supporting device for preventing foundation pit collapse, and belongs to the technical field of foundation pit supporting; the foundation pit supporting device comprises a supporting plate paved along the side wall of a foundation pit and an anchoring pile buried outside the side wall of the foundation pit, wherein a first fixing rod is arranged on the surface of the supporting plate along the vertical direction, the bottom of the first fixing rod is inserted into a soil layer, the top of the first fixing rod is connected with the anchoring pile, the foundation pit supporting device further comprises a hinged third fixing rod and a first traction rod, one end of the third fixing rod, far away from the first traction rod, is hinged with the lower part of the first fixing rod, one end of the first traction rod, far away from the third fixing rod, is hinged with the anchoring pile, a second fixing rod is arranged between the first fixing rod and the third fixing rod along the horizontal direction, and two ends of the second fixing rod are respectively movably connected with the first fixing rod and the third fixing rod; the utility model has the advantages of forming a stable support for the middle part of the first fixing rod and reducing rainwater infiltration into the side wall of the foundation pit.

Description

Foundation pit supporting device for preventing foundation pit from collapsing

Technical Field

The utility model relates to the technical field of foundation pit support, in particular to a foundation pit support device for preventing foundation pit collapse.

Background

The foundation pit support is used for ensuring the safety of underground structure construction and the surrounding environment of the foundation pit, and is used for supporting, reinforcing and protecting the side wall of the foundation pit and the surrounding environment. The existing foundation pit supporting device is relatively simple, in most cases, the supporting plate is used for supporting the side wall of the foundation pit, and the inclined supporting rod is used for supporting the supporting wood plate, when the foundation pit is deeper, the length and the size of the supporting wood plate are limited and cannot be adjusted, and the supporting effect is difficult to achieve; secondly in actual construction process, need carry out the construction such as pile foundation in the foundation ditch inside generally, and among the prior art, be provided with the diagonal brace in the foundation ditch and be used for supporting the backup pad, the slope setting of diagonal brace has taken the construction space in the foundation ditch, leads to the free construction in the foundation ditch less in the space, brings a great deal of inconvenience for the normal construction of other construction projects in the foundation ditch.

In the Chinese patent document with the publication number of CN216865184U, a foundation pit supporting device for preventing the collapse of a foundation pit is provided, a plurality of supporting plates can be spliced, so that foundation pits with different sizes can be supported, and a first fixing rod and a second fixing rod for supporting the supporting plates are vertically or horizontally arranged and are attached to the outer sides of the supporting plates, so that the foundation pit supporting device does not occupy the construction space in the foundation pit, meanwhile, the first fixing rod can play a supporting role on the supporting plates, and the second fixing rod further compresses the supporting plates in the horizontal direction, so that the supporting plates are tightly attached to the side walls of the foundation pit, shaking of the supporting plates is avoided, and the supporting stability of the supporting plates is further ensured.

However, the disadvantage of this scheme lies in, and the purpose of strut is that prevent the foundation ditch lateral wall from collapsing, in this utility model, when the foundation ditch is dark, in the direction of height, first dead lever top and bottom have better perpendicular and foundation ditch lateral wall's supporting role to the backplate, and the supporting role of middle part to the backplate of first dead lever is weak relatively, if the middle soil layer of foundation ditch lateral wall takes place to collapse, extrudes the backplate, very easily causes the middle part of first dead lever to the foundation ditch inboard crooked, the danger takes place, this application proposes the improvement to this problem.

Disclosure of Invention

The utility model aims to solve the problem that the supporting effect of the middle part of a foundation pit supporting device on a supporting plate in the prior art is relatively weak, and provides a foundation pit supporting device for preventing a foundation pit from collapsing.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a prevent foundation ditch strutting arrangement that foundation ditch collapses, includes the backplate of following foundation ditch lateral wall and the anchor stake of burying the foundation ditch lateral wall outside of laying, the surface of backplate is provided with first dead lever along vertical direction, in the soil layer is inserted to the bottom of first dead lever, the top and the anchor stake of first dead lever are connected, still include articulated third dead lever and first traction lever, the one end and the lower part of first dead lever are articulated of third dead lever are kept away from to the third dead lever, the one end and the anchor stake of third dead lever are kept away from to the first traction lever are articulated, be provided with the second dead lever along the horizontal direction between first dead lever and the third dead lever, swing joint between the both ends of second dead lever and first dead lever, the third dead lever respectively.

Further, a connecting plate is arranged at one end, close to the first fixing rod, of the second fixing rod, a first screw hole is formed in the connecting plate, an adjusting hole corresponding to the first screw hole is formed in the first fixing rod, and the adjusting hole is a long round hole extending along the vertical direction;

the one end that the second dead lever is close to the third dead lever is provided with the semicircle draw-in groove of opening orientation third dead lever, the inboard of third dead lever is provided with the joint post that corresponds with the semicircle draw-in groove, a plurality of the joint post sets up along the length direction of third dead lever.

Further, the first traction rod comprises a screwing tube, a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the anchoring pile, the other end of the first connecting rod is rotatably connected with one end of the screwing tube, a tensioning screw hole is formed in the other end of the screwing tube, one end of the second connecting rod is hinged to the third fixing rod, and the other end of the second connecting rod is in threaded connection with the tensioning screw hole.

Further, the included angle between the third fixed rod and the first traction rod is an acute angle.

Further, a flashing is arranged on the top of the first traction rod, and the flashing is positioned right above the support plate.

Further, one end of the flashing close to the anchor pile is provided with a flashing.

Further, the end of the flashing remote from the anchor pile extends outside the first traction rod.

Compared with the prior art, the utility model provides the foundation pit supporting device for preventing the collapse of the foundation pit, which has the following beneficial effects:

when the foundation pit supporting device for preventing the foundation pit from collapsing is used, the anchoring piles are buried, the supporting plates are paved, the first fixing rods are buried, the first fixing rods are connected with the anchoring piles, the first fixing rods and the third fixing rods are connected through the second fixing rods, finally the third fixing rods and the anchoring piles are connected through the first traction rods, the third fixing rods are tensioned through the first traction rods by the anchoring piles, the second fixing rods are tensioned through the third fixing rods to apply force to the first fixing rods, the direction of the force is perpendicular to the side wall of the foundation pit and faces the soil layer, and therefore the middle part of the first fixing rods forms stable support for the supporting plates and the soil layer.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows; and will be apparent to those skilled in the art in part based upon a review of the following; alternatively, the teachings may be directed to practice of the present utility model.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic side view of a connection plate structure of the present utility model;

FIG. 3 is a schematic diagram of a semicircular slot according to the present utility model;

FIG. 4 is a second schematic diagram of a semicircular slot according to the present utility model;

fig. 5 is a schematic top view of the flashing structure of the utility model;

fig. 6 is a schematic view of the internal structure of the screw pipe according to the present utility model.

In the figure:

1. a support plate; 2. a first fixing rod; 3. a second fixing rod; 4. a third fixing rod; 5. a first drawbar; 6. anchoring the pile; 7. screwing the tube; 8. a second drawbar; 9. a flashing; 10. u-shaped anchor ear; 11. a connecting plate; 12. a first screw hole; 13. an adjustment aperture; 14. a semicircular clamping groove; 15. a clamping column; 16. a first connecting rod; 17. tensioning the screw hole; 18. a second connecting rod; 19. rain shield.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 6, the foundation pit supporting device for preventing collapse of a foundation pit comprises a supporting plate 1 paved along the wall surface of the side wall of the foundation pit and an anchoring pile 6 buried in the soil layer outside the side wall of the foundation pit, wherein a first fixing rod 2 is arranged on the surface of the supporting plate 1 along the vertical direction, the bottom of the first fixing rod 2 is inserted into the soil layer, the top of the first fixing rod 2 is connected with the anchoring pile 6 through a second traction rod 8, the first fixing rod 2 is fixed from the top and the bottom, and a first-stage support is formed for the supporting plate 1;

the device also comprises a hinged third fixed rod 4 and a first traction rod 5, wherein one end of the third fixed rod 4, which is far away from the first traction rod 5, is hinged with the lower part of the first fixed rod 2, one end of the first traction rod 5, which is far away from the third fixed rod 4, is hinged with an anchoring pile 6, a second fixed rod 3 is arranged between the first fixed rod 2 and the third fixed rod 4 along the horizontal direction, two ends of the second fixed rod 3 are respectively and movably connected with the first fixed rod 2 and the third fixed rod 4, after the primary support is finished, the second fixed rod 3 is firstly installed, the third fixed rod 4 is pulled up through the first traction rod 5, the second fixed rod 3 is supported through the third fixed rod 4, and finally the first traction rod 5 is pulled and tensioned, so that the second fixed rod 3 is firmly supported on the first fixed rod 2;

the second fixing rod 3 is connected with the first fixing rod 2, the first traction rod 5 is connected with the anchoring pile 6 through a pin shaft, the third fixing rod 4 is connected with the first traction rod 5 through a pin shaft, and the pin shafts can be independently detached and installed;

specifically, a connecting plate 11 is installed at one end of the second fixing rod 3 close to the first fixing rod 2, a first screw hole 12 is formed in the connecting plate 11, an adjusting hole 13 corresponding to the first screw hole 12 is formed in the first fixing rod 2, the adjusting hole 13 is a long round hole extending in the vertical direction, the height of the second fixing rod 3 is conveniently adjusted through the adjusting hole 13, in the embodiment, the section of the first fixing rod 2 is I-shaped (similar to I-shaped steel), after a bolt penetrates into the first screw hole 12 and the adjusting hole 13, a nut is screwed on one surface of the inner side of the first fixing rod 2, and therefore the second fixing rod 3 is fixed on the first fixing rod 2;

a semicircular clamping groove 14 with an opening facing the third fixed rod 4 is formed in one end, close to the third fixed rod 4, of the second fixed rod 3, a clamping column 15 corresponding to the semicircular clamping groove 14 is arranged on the inner side of the third fixed rod 4, the axis of the clamping column 15 is horizontal, the semicircular clamping groove 14 and the clamping column 15 can rotate up and down, a plurality of clamping columns 15 are arranged side by side along the length direction of the third fixed rod 4, when foundation pits with different heights are supported, the height of the second fixed rod 3 can be adjusted, the second fixed rod 3 is located at the middle position of the first fixed rod 2, and then is movably clamped with the clamping column 15 with the corresponding height;

the first traction rod 5 comprises a screwing tube 7, a first connecting rod 16 and a second connecting rod 18, one end of the first connecting rod 16 is hinged with the anchoring pile 6, the other end of the first connecting rod 16 is rotatably connected with one end of the screwing tube 7, a tensioning screw hole 17 is formed in the other end of the screwing tube 7, one end of the second connecting rod 18 is hinged with the third fixing rod 4, the other end of the second connecting rod 18 is in threaded connection with the tensioning screw hole 17, and specifically as shown in fig. 5, after the first traction rod 5 is connected with the anchoring pile 6 and the third fixing rod 4, the screwing tube 7 is screwed to be contracted by the distance between the first connecting rod 16 and the second connecting rod 18, so that the first traction rod 5 tightens the third fixing rod 4, and the second fixing rod 3 compresses the first fixing rod 2 and the support plate 1;

the top of the second fixed rod 3 is connected with the anchor pile 6 through a second traction rod 8, and the structure of the second traction rod 8 is the same as that of the first traction rod 5;

the included angle between the third fixed rod 4 and the first traction rod 5 is an acute angle or a right angle; when the included angle between the third fixing rod 4 and the first traction rod 5 is an acute angle, as shown in fig. 1, the lengths of the plurality of second fixing rods 3 are different;

when the angle between the third fixing rod 4 and the first traction rod 5 is a right angle (not shown), the lengths of the plurality of second fixing rods 3 are the same;

the angle is selected to be an acute angle in the present embodiment in consideration of the influence of the angle between the third fixing lever 4 and the first drawbar 5 on the transfer of the force between the third fixing lever 4 and the first drawbar 5;

the top of the first traction rod 5 is provided with the rain shielding plate 9, the rain shielding plate 9 is arranged at the top of the first traction rod 5 side by side, the rain shielding plate 9 is connected with the first traction rod 5 through the U-shaped hoop 10, the rain shielding plate 9 is positioned right above the support plate 1, rainwater is prevented from entering a gap between the support plate 1 and the side wall of a foundation pit through the rain shielding plate 9, so that the risk of collapse of the side wall of the foundation pit due to rain washing is reduced, meanwhile, the rainwater is prevented from entering a soil layer at the bottom of the first fixing rod 2 along the first fixing rod 2, and the support stability of the device is further improved;

the rain shield 19 is arranged at one end of the rain shield 9 close to the anchor pile 6, and the rain shield 19 is used for guiding rainwater collected on the rain shield 9 away from the side face of the rain shield 9, so that rainwater is prevented from gathering and penetrating along soil layers along the rain shield 9 to the anchor pile 6, and the stability of the anchor pile 6 is improved;

the one end that the flashing 9 kept away from anchor stake 6 stretches to the outside of first traction lever 5, prevents that the rainwater from flowing to the bottom of first dead lever 2 along third dead lever 4, further improves the steadiness of first dead lever 2.

Working principle: when the anchor pile fixing device is used, the anchor pile 6 is buried firstly, then the support plate 1 is paved, the first fixing rod 2 is buried, the second fixing rod 3 is installed on the first fixing rod 2 after the first fixing rod 2 is connected with the anchor pile 6, then the end part of the third fixing rod 4 is hinged with the first fixing rod 2, the end part of the first traction rod 5 is hinged with the anchor pile 6, the semicircular clamping groove 14 is clamped with the clamping post 15, and finally the screwing tube 7 is screwed, so that the anchor pile 6 is tensioned with the first fixing rod 2.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (7)

1. The utility model provides a prevent foundation ditch strutting arrangement that foundation ditch collapses, includes support plate (1) and the anchor stake (6) of burying the foundation ditch lateral wall outside of following the foundation ditch lateral wall and laying, the surface of support plate (1) is provided with first dead lever (2) along vertical direction, in the soil layer is inserted to the bottom of first dead lever (2), the top and the anchor stake (6) of first dead lever (2) are connected, a serial communication port, still include articulated third dead lever (4) and first traction lever (5), the one end and the lower part of first dead lever (2) are articulated of first traction lever (5) are kept away from to third dead lever (4), the one end and the anchor stake (6) of third dead lever (4) are kept away from to first traction lever (5), be provided with second dead lever (3) along the horizontal direction between first dead lever (2) and third dead lever (4), swing joint between the both ends of second dead lever (3) and first dead lever (2), third dead lever (4) respectively.

2. The foundation pit supporting device for preventing collapse of a foundation pit according to claim 1, wherein a connecting plate (11) is arranged at one end, close to the first fixing rod (2), of the second fixing rod (3), a first screw hole (12) is formed in the connecting plate (11), an adjusting hole (13) corresponding to the first screw hole (12) is formed in the first fixing rod (2), and the adjusting hole (13) is a long round hole extending in the vertical direction;

one end of the second fixing rod (3) close to the third fixing rod (4) is provided with a semicircular clamping groove (14) with an opening facing the third fixing rod (4), the inner side of the third fixing rod (4) is provided with clamping columns (15) corresponding to the semicircular clamping groove (14), and a plurality of clamping columns (15) are arranged along the length direction of the third fixing rod (4).

3. The foundation pit supporting device for preventing collapse of a foundation pit according to claim 1, wherein the first traction rod (5) comprises a screwing tube (7), a first connecting rod (16) and a second connecting rod (18), one end of the first connecting rod (16) is hinged with the anchoring pile (6), the other end of the first connecting rod is rotatably connected with one end of the screwing tube (7), a tensioning screw hole (17) is formed in the other end of the screwing tube (7), one end of the second connecting rod (18) is hinged with the third fixing rod (4), and the other end of the second connecting rod is in threaded connection with the tensioning screw hole (17).

4. A pit supporting device for preventing pit collapse according to claim 1, wherein the angle between the third fixing rod (4) and the first traction rod (5) is an acute angle.

5. A pit support device for preventing pit collapse according to claim 4, wherein the top of the first traction rod (5) is provided with a flashing (9), the flashing (9) being located directly above the support plate (1).

6. A pit supporting device for preventing pit collapse according to claim 5, wherein the flashing (9) is provided with a flashing (19) at the end near the anchor pile (6).

7. A foundation pit supporting device for preventing collapse of foundation pit according to claim 5, wherein the end of the flashing (9) remote from the anchor pile (6) extends outside the first drawbar (5).