CN214883709U - Corner supporting device for deep foundation pit - Google Patents

Abstract

The utility model relates to a corner supporting device for deep basal pit belongs to the field of foundation ditch construction, and it includes supporting construction and connection structure, supporting construction includes curb plate and bottom plate, it is articulated mutually between curb plate and the bottom plate, bottom plate and curb plate pass through connection structure and foundation ditch inner wall connection, connection structure includes a plurality of inserted bars and sets up the spacing subassembly in inserted bar one end, all seted up a plurality of confession inserted bar male jacks on bottom plate and the curb plate, the inserted bar passes through spacing subassembly and is connected fixedly with supporting construction, the inside cavity of inserted bar sets up and is formed with the watering chamber, the one end that spacing subassembly was kept away from to the inserted bar has seted up first grout outlet, grout inlet has been seted up to the other end of inserted bar. This application is applicable to the support of foundation ditch edge more and stabilizes, improves the firm effect of support to the foundation ditch corner.

Description

Corner supporting device for deep foundation pit

Technical Field

The application relates to the field of foundation pit construction, especially, relate to a corner supporting device for deep basal pit.

Background

The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. The foundation pit support is a supporting, blocking, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit, and the foundation pit support is used as a structural system and should meet the requirements of stability and deformation resistance.

The related Chinese patent with publication number CN112761168A discloses a foundation pit supporting device, which comprises positioning piles abutting against the side wall of a foundation pit, wherein one positioning pile is arranged at the corner of the foundation pit, supporting components are arranged between the adjacent positioning piles, each supporting component comprises a horizontally arranged crown beam and a plurality of supporting units connected to the crown beam in a sliding manner, two ends of each crown beam are connected with first anchor rods inserted into the soil body of the foundation pit, connecting components are connected between the positioning piles and the first anchor rods, supporting frames are connected to the supporting units, and second anchor rods inserted into the soil body of the foundation pit are fixedly connected to the supporting frames.

Aiming at the related technologies, the inventor thinks that the size of an included angle between a bottom wall and a side wall in a foundation pit is various, and a related foundation pit supporting device is difficult to meet the supporting requirements of corners with different angles in the foundation pit and has poor supporting effect.

SUMMERY OF THE UTILITY MODEL

In order to improve the supporting demand that relevant excavation supporting device is difficult to be applicable to the corner of the different angles in the foundation ditch, strut the relatively poor problem of effect, this application provides a corner supporting device for deep basal pit.

The application provides a pair of corner supporting device for deep basal pit adopts following technical scheme:

the utility model provides a corner supporting device for deep basal pit, includes supporting construction and connection structure, supporting construction includes curb plate and bottom plate, it is articulated mutually between curb plate and the bottom plate, bottom plate and curb plate pass through connection structure and foundation ditch inner wall connection, connection structure includes a plurality of inserted bars and sets up the spacing subassembly in inserted bar one end, all set up a plurality of inserted bar male jacks of confession on bottom plate and the curb plate, the inserted bar passes through spacing subassembly and is connected fixedly with supporting construction, the inside cavity setting of inserted bar is formed with the watering chamber, the one end that spacing subassembly was kept away from to the inserted bar has seted up first grout outlet, grout inlet has been seted up to the other end of inserted bar.

Through adopting above-mentioned technical scheme, the curb plate is connected with the bottom plate is articulated, make can the rotation between curb plate and the bottom plate, when carrying out the operation of strutting of foundation ditch corner, can support the bottom surface laminating of bottom plate and foundation ditch tightly, rotate the curb plate, support tightly the lateral wall laminating of curb plate and foundation ditch, make bottom plate and curb plate and foundation ditch connection fixed through connection structure afterwards, and advance the thick liquid hole through the inserted bar, pour concrete into the inserted bar, the concrete discharges and solidifies from first grout outlet, effectively improve the firm in connection nature of inserted bar and foundation ditch, and the inserted bar passes through spacing subassembly and is connected fixedly with supporting construction, and then guarantee supporting construction and foundation ditch's firm in connection nature, and then improve the firm effect of support to the foundation ditch corner, and the strut demand to the corner of the different angles of foundation ditch has good suitability.

Optionally, the limiting assembly comprises a connecting ring and a blocking ring, the connecting ring and the blocking ring are all sleeved on the inserted rod, the connecting ring is in threaded connection with the inserted rod, the blocking ring is fixed at one end, close to the supporting structure, of the connecting ring, and the blocking ring is abutted to the supporting structure.

Through adopting above-mentioned technical scheme, the inserted bar passes through spacing subassembly and is connected fixedly with supporting construction, when the inserted bar is fixed to be inserted and establishes in the foundation ditch, keeps off ring and supporting construction butt to supporting construction and inserted bar relatively fixed. When the supporting structure is required to be disassembled, the connecting ring and the baffle ring are separated from the inserted rod by rotating the connecting ring, so that the supporting structure can be disassembled from the foundation pit, and the operation is convenient.

Optionally, a plurality of barb blocks are fixedly arranged on the outer wall of the inserted bar, and the thickness of each barb block is gradually increased in the direction close to the limiting assembly.

Through adopting above-mentioned technical scheme, further improve the firm in connection nature and the stability between inserted bar and the foundation ditch for the inserted bar is difficult to break away from in the foundation ditch, and then improves the firm in connection nature between supporting construction and the foundation ditch, improves the effect of strutting to the foundation ditch.

Optionally, the barb block is hollow inside and forms a pulp discharge cavity, the pulp discharge cavity is communicated with the irrigation cavity, and a second pulp outlet hole communicated with the pulp discharge cavity is formed in the barb block.

Through adopting above-mentioned technical scheme, when in the downthehole injection inserted bar that advances of inserted bar with the concrete, the concrete flows in pouring chamber and thick liquid chamber in proper order to in discharging into the foundation ditch from first grout outlet and second grout outlet, make the distribution that the concrete can be comprehensive in the week side of inserted bar, make to be connected between inserted bar and the foundation ditch more firm.

Optionally, a supporting structure is arranged between the side plate and the bottom plate, the supporting structure includes a first supporting rod, a second supporting rod and an adjusting assembly, one end of the first supporting rod is hinged to the bottom plate, one end of the second supporting rod is hinged to the bottom plate, the first supporting rod and the second supporting rod are relatively fixed through the adjusting assembly, and the adjusting assembly is used for adjusting the distance between the first supporting rod and the second supporting rod.

By adopting the technical scheme, the supporting structure has good supporting effect on the side plates and the bottom plate, so that the side plates and the bottom plate are more stably connected, and the supporting effect of the supporting structure on the foundation pit is better; the distance between the first supporting rod and the second supporting rod is adjusted through the adjusting assembly, so that the supporting structure can be suitable for the change of the hinge angle between the side plate and the bottom plate.

Optionally, the adjusting part includes two-way screw rod, two-way screw rod's one end wear to establish in first bracing piece and with first bracing piece threaded connection, two-way screw rod's the other end wear to establish in the second bracing piece and with second bracing piece threaded connection, screw thread between two-way screw rod and first bracing piece and the second bracing piece is revolved to opposite.

Through adopting above-mentioned technical scheme, the screw thread of first bracing piece, second bracing piece and two-way screw rod is revolved to the opposite, through rotating two-way screw rod for in opposite directions or back-to-back motion between first bracing piece and the second bracing piece realizes the adjustment of distance between first bracing piece and the second bracing piece then, simple structure, convenient operation.

Optionally, wear to be equipped with the dwang on the two-way screw rod, the dwang is located between first bracing piece and the second bracing piece, dwang and two-way screw rod sliding connection.

By adopting the technical scheme, the bidirectional screw rod is convenient to rotate through the rotating rod, so that the operation convenience of the adjusting assembly is improved; and the dwang is through perforation and two-way screw rod sliding connection, and the length of the arm of force of convenient adjustment dwang rotates two-way screw rod more laborsavingly.

Optionally, all be provided with the retaining member on first bracing piece and the second bracing piece, the retaining member is used for fixed two-way screw rod.

Through adopting above-mentioned technical scheme, after adjusting suitable distance between with first bracing piece and the second bracing piece through adjusting part, it is fixed with two-way screw rod through the retaining member for adjusting screw rod is difficult for receiving factors such as external force vibration and takes place to rotate, and guarantee bearing structure is to supporting construction's supporting effect.

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

1. by arranging the supporting structure and the connecting structure, the supporting structure has good applicability to supporting requirements of corners at different angles in the foundation pit, and the supporting and stabilizing effect on the corners of the foundation pit is improved;

2. by arranging the barb blocks, the inserted rods are not easy to separate from the foundation pit, so that the connection firmness between the supporting structure and the foundation pit is improved, and the supporting effect on the foundation pit is improved;

3. through setting up adjusting part, adjust the distance between first bracing piece and the second bracing piece for bearing structure can be applicable to supporting structure's angle change.

Drawings

Fig. 1 is a schematic view of an overall structure of a corner supporting device for a deep foundation pit according to an embodiment of the present application.

Fig. 2 is a partial sectional view for embodying a connection structure in an embodiment of the present application.

Description of reference numerals: 1. a support structure; 11. a base plate; 12. a side plate; 2. a connecting structure; 21. inserting a rod; 211. a watering chamber; 212. a slurry inlet hole; 213. a first slurry outlet; 22. a barb block; 221. a pulp discharge cavity; 222. a second slurry outlet; 23. a limiting component; 231. a connecting ring; 232. a baffle ring; 233. an elastic pad; 3. a support structure; 31. a first support bar; 32. a second support bar; 33. an adjustment assembly; 331. a bidirectional screw; 332. rotating the rod; 333. blocking the ball; 334. and a locking member.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses corner supporting device for deep foundation ditch. Referring to fig. 1, a corner supporting device for deep foundation pit includes supporting construction 1, connection structure 2 and bearing structure 3, supporting construction 1 includes bottom plate 11 and curb plate 12, an border of curb plate 12 is articulated mutually with an edge of bottom plate 11, bottom plate 11 and curb plate 12 are all fixed through connection structure 2 and foundation pit inner wall connection, bearing structure 3 is located between bottom plate 11 and the curb plate 12, and bearing structure 3 is located one side that bearing structure 1 kept away from connection structure 2, bearing structure 3 is used for providing good support to curb plate 12 and bottom plate 11. When the operation of strutting of foundation ditch corner, can support tightly bottom plate 11 and the bottom surface laminating of foundation ditch, through rotating curb plate 12, support tightly the lateral wall laminating of curb plate 12 and foundation ditch, it is fixed with bottom plate 11 and curb plate 12 and foundation ditch connection through connection structure 2 afterwards to provide good supporting effect for the corner of foundation ditch, the requirement of strutting to the corner of the different angles of foundation ditch has good suitability.

Referring to fig. 1, the supporting structure 3 includes a first supporting rod 31, a second supporting rod 32 and an adjusting assembly 33, the first supporting rod 31 and the second supporting rod 32 are coaxial, an end of the first supporting rod 31 away from the second supporting rod 32 is hinged to the bottom plate 11, and an end of the second supporting rod 32 away from the first supporting rod 31 is hinged to the side plate 12. The first support rod 31 is parallel to the hinge rotation axis of the bottom plate 11, the hinge rotation axis of the second support rod 32 and the side plate 12, and the hinge rotation axis of the bottom plate 11 and the side plate 12, so that when the bottom plate 11 and the side plate 12 rotate according to the angle of the corner of the foundation pit, the first support rod 31 and the second support rod 32 can both rotate along with the supporting structure 1. The adjusting assembly 33 is located between the first supporting rod 31 and the second supporting rod 32, the first supporting rod 31 and the second supporting rod 32 are relatively fixed through the adjusting assembly 33, and the adjusting assembly 33 is used for adjusting the distance between the first supporting rod 31 and the second supporting rod 32, so that the supporting structure 3 can provide a good supporting effect for the supporting structure 1.

Referring to fig. 1, the adjustment assembly 33 includes a bidirectional screw 331, a rotating lever 332, and a locking member 334. The bidirectional screw 331 is located between the first support rod 31 and the second support rod 32, one end of the bidirectional screw 331 penetrates through the first support rod 31 and is in threaded connection with the first support rod 31, the other end of the bidirectional screw 331 penetrates through the second support rod 32 and is in threaded connection with the second support rod 32, and the thread directions of the bidirectional screw 331 and the first support rod 31 and the second support rod 32 are opposite. The middle part of the bidirectional screw 331 is provided with a through hole, the axis of the through hole is perpendicular to the axis of the bidirectional screw 331, the rotating rod 332 is arranged in the bidirectional screw 331 through the through hole and is connected with the bidirectional screw 331 in a sliding manner, and the rotating rod 332 is positioned between the first support rod 31 and the second support rod 32. Make two-way screw 331 rotate through dwang 332, then two-way screw 331 drives first bracing piece 31 and second bracing piece 32 and moves towards or back of the body mutually to the articulated angle between adjustment curb plate 12 and the bottom plate 11 provides good support for supporting construction 1. The two ends of the rotating rod 332 are fixedly welded with the blocking balls 333, and the diameter of the blocking balls 333 is larger than that of the through holes, so that the rotating rod 332 is not easy to slide off the bidirectional screw 331. The locking member 334 includes two locking bolts, each of which is inserted into the corresponding first support rod 31 and the corresponding second support rod 32, and after the distance between the first support rod 31 and the second support rod 32 is adjusted by the adjusting component 33, the locking bolts are abutted against the two-way screw 331 by screwing the locking bolts, so that the two-way screw 331 is locked and fixed.

Referring to fig. 1 and 2, the connection structure 2 includes a plurality of insertion rods 21 and a stopper assembly 23 disposed at one end of the insertion rods 21. A plurality of jacks for inserting the inserting rods 21 are formed in the bottom plate 11 and the side plate 12, and the inserting rods 21 are fixedly connected with the supporting structure 1 through the limiting assemblies 23. Fixed a plurality of barb blocks 22 that are provided with on the outer wall of inserted bar 21, a plurality of barb blocks 22 arrange along the length direction of inserted bar 21, and a plurality of barb blocks 22 all are located supporting construction 1 and keep away from one side of spacing subassembly 23, and the thickness of each barb block 22 increases progressively in the direction that is close to supporting construction 1 and sets up for inserted bar 21 is difficult to break away from in the foundation ditch, improves the fastness of being connected between inserted bar 21 and the foundation ditch. The inside of the inserted rod 21 is hollow and formed by a pouring cavity 211, the inside of the barb block 22 is hollow and formed by a pulp discharge cavity 221, and the pulp discharge cavity 221 is communicated with the pouring cavity 211. The one end that inserted bar 21 is close to spacing subassembly 23 has seted up into thick liquid hole 212, and the first thick liquid hole 213 has been seted up to the other end of inserted bar 21, and the barb piece 22 has seted up second thick liquid hole 222 near the one side of spacing subassembly 23, advances thick liquid hole 212, first thick liquid hole 213, second thick liquid hole 222 and all communicates with watering chamber 211. When the inserted bar 21 is inserted into the foundation pit, concrete is poured into the inserted bar 21 through the grout inlet hole 212 of the inserted bar 21, the concrete sequentially flows into the pouring cavity 211 and the grout outlet cavity 221, and is discharged into the foundation pit from the first grout outlet hole 213 and the second grout outlet hole 222 and is solidified, so that the connection firmness and stability of the supporting structure 1 and the inserted bar 21 are effectively improved.

Referring to fig. 1 and 2, the limiting assembly 23 includes a connection ring 231, a blocking ring 232 and an elastic pad 233, the connection ring 231 and the blocking ring 232 are both sleeved on the insertion rod 21, the connection ring 231 is in threaded connection with the insertion rod 21, the blocking ring 232 and the connection ring 231 are integrally formed, and the blocking ring 232 is located at one end of the connection ring 231 close to the supporting structure 1. The elastic pad 233 is adhesively fixed to a surface of the stopper ring 232 remote from the connection ring 231. When the insert rod 21 is inserted into the foundation pit, the stopper ring 232 abuts against the supporting structure 1 through the elastic pad 233, so that the supporting structure 1 and the insert rod 21 are relatively fixed. When the supporting structure 1 needs to be disassembled, the connecting ring 231 and the baffle ring 232 are separated from the inserted rod 21 by rotating the connecting ring 231, so that the supporting structure 1 can be disassembled from the foundation pit, the operation is convenient, the supporting structure can be repeatedly utilized, and the cost is saved.

The implementation principle of the corner supporting device for the deep foundation pit is as follows: when the supporting operation of foundation ditch corner is carried out, can support bottom plate 11 and the bottom surface laminating of foundation ditch tightly, through adjusting part 33, adjust the distance between first bracing piece 31 and the second bracing piece 32 for curb plate 12 rotates, supports tightly until curb plate 12 and the lateral wall laminating of foundation ditch, and provides good support for supporting construction 1. Make supporting construction 1 and foundation ditch connection fixed through connection structure 2 afterwards, advance grout hole 212 through inserted bar 21, to pouring concrete in inserted bar 21, the concrete is discharged and is solidified from first grout hole 213 and second grout hole 222, improve the firm in connection nature of inserted bar 21 and foundation ditch, and then guarantee supporting construction 1 and the firm in connection nature of foundation ditch, and then improve the firm effect of support to the foundation ditch corner, and the requirement of strutting to the corner of the different angles of foundation ditch has good suitability.

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 (8)

1. The utility model provides a corner supporting device for deep basal pit which characterized in that: comprises a supporting structure (1) and a connecting structure (2), wherein the supporting structure (1) comprises a side plate (12) and a bottom plate (11), the side plates (12) are hinged with the bottom plate (11), the bottom plate (11) and the side plates (12) are connected with the inner wall of the foundation pit through a connecting structure (2), the connecting structure (2) comprises a plurality of inserted rods (21) and a limiting component (23) arranged at one end of each inserted rod (21), the bottom plate (11) and the side plate (12) are both provided with a plurality of jacks for the insertion of the insertion rods (21), the inserted bar (21) is fixedly connected with the supporting structure (1) through a limiting component (23), the inside of the inserted bar (21) is hollow and forms a pouring cavity (211), a first slurry outlet hole (213) is formed in one end, away from the limiting component (23), of the inserted rod (21), and a slurry inlet hole (212) is formed in the other end of the inserted rod (21).

2. The corner support device for the deep foundation pit according to claim 1, wherein: spacing subassembly (23) include go-between (231) and fender ring (232), go-between (231) and fender ring (232) are all established on inserted bar (21), go-between (231) and inserted bar (21) threaded connection, keep off ring (232) and fix the one end that is close to supporting construction (1) in go-between (231), keep off ring (232) and supporting construction (1) butt.

3. The corner support device for the deep foundation pit according to claim 2, wherein: the outer wall of the inserted bar (21) is fixedly provided with a plurality of barb blocks (22), and the thickness of the barb blocks (22) is gradually increased in the direction close to the limiting component (23).

4. A corner supporting device for a deep foundation pit according to claim 3, wherein: the inner part of the barb block (22) is hollow and forms a pulp discharge cavity (221), the pulp discharge cavity (221) is communicated with the pouring cavity (211), and a second pulp outlet hole (222) communicated with the pulp discharge cavity (221) is formed in the barb block (22).

5. The corner support device for the deep foundation pit according to claim 1, wherein: be provided with bearing structure (3) between curb plate (12) and bottom plate (11), bearing structure (3) are including first bracing piece (31), second bracing piece (32) and adjusting part (33), the one end and bottom plate (11) of first bracing piece (31) are articulated, the one end and bottom plate (11) of second bracing piece (32) are articulated, through adjusting part (33) relatively fixed between first bracing piece (31) and second bracing piece (32), adjusting part (33) are used for adjusting the distance between first bracing piece (31) and second bracing piece (32).

6. A corner supporting device for a deep foundation pit according to claim 5, wherein: adjusting part (33) include two-way screw rod (331), the one end of two-way screw rod (331) is worn to establish in first bracing piece (31) and with first bracing piece (31) threaded connection, the other end of two-way screw rod (331) is worn to establish in second bracing piece (32) and with second bracing piece (32) threaded connection, screw thread rotation between two-way screw rod (331) and first bracing piece (31) and second bracing piece (32) is opposite.

7. The corner support device for the deep foundation pit according to claim 6, wherein: two-way screw rod (331) go up to wear to be equipped with dwang (332), dwang (332) are located between first bracing piece (31) and second bracing piece (32), dwang (332) and two-way screw rod (331) sliding connection.

8. The corner support device for the deep foundation pit according to claim 6, wherein: all be provided with retaining member (334) on first bracing piece (31) and second bracing piece (32), retaining member (334) are used for fixed two-way screw rod (331).

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