CN214219680U

CN214219680U - Foundation pit supporting baffle

Info

Publication number: CN214219680U
Application number: CN202022900427.0U
Authority: CN
Inventors: 陈龙; 吴明; 吴金华
Original assignee: Wuhan Jintao Geotechnical Engineering Co ltd
Current assignee: Wuhan Jintao Geotechnical Engineering Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-09-17
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to a retaining plate for foundation pit support relates to the building engineering field, and it includes the wall body, and the one end of wall body is provided with a plurality of backup pads, and the one end equidistance that the lateral wall of foundation pit was kept away from to the backup pad articulates there are a plurality of bracing pieces, and the both ends of bracing piece are connected respectively in the diapire of backup pad and foundation pit, and a plurality of expansion screw rods are worn to be equipped with by the backup pad spiral, and expansion screw rod spiral is provided with and is used for carrying out the expanding structure fixed to the backup pad, and the one end that the bracing piece is close to the foundation pit diapire is removable to be provided with the fixed knot who is used for the butt backup pad and constructs. This application makes backup pad and wall body fix the foundation ditch lateral wall through expansion screw, branch and butt piece, fixes the foundation ditch many times through bracing piece butt foundation ditch diapire and backup pad to the messenger is better to the effect of strutting of foundation ditch lateral wall.

Description

Foundation pit supporting baffle

Technical Field

The application relates to the field of constructional engineering, in particular to a foundation pit supporting baffle.

Background

At present, a foundation pit is an earth pit excavated at a foundation design position according to a base elevation and a foundation plane size, and in order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit, a foundation pit support needs to adopt retaining, reinforcing and protecting measures for the side wall and the surrounding environment of the foundation pit.

The existing Chinese patent with the patent application number of CN201921357020.9 provides a foundation pit support, which comprises a stress plate, an inclined supporting rod and a supporting pile wedged at the bottom of the foundation pit, wherein the stress plate is propped against the side wall of the foundation pit, one end of the inclined supporting rod is hinged with the stress plate, and the other end of the inclined supporting rod is hinged with the supporting pile; the inclined support rod comprises an inclined rod, a nut sleeved on the inclined tube and a nut sleeved on the inclined tube, one end of the inclined rod is hinged to the stress plate, one end of the inclined tube is hinged to the support pile, the inclined tube is of a double-half structure separated along the axis, the peripheral side face of one end, close to the inclined rod, of the inclined tube is a conical surface, the small end of the conical surface is close to the inclined rod relative to the large end of the conical surface, and the conical surface of the inclined tube is in threaded connection with the nut.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: when the supporting pile and the supporting plate support the foundation pit, one end of the stress plate is connected with the side wall of the foundation pit weakly, so that the stress plate slides easily, and the supporting effect of the stress plate is poor.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem of the installation of being not convenient for to excavation supporting structure, this application provides a excavation supporting baffle.

The application provides a foundation ditch support baffle adopts following technical scheme:

the utility model provides a retaining plate for foundation pit support, includes the wall body, the one end of wall body is provided with a plurality of backup pads, the one end equidistance that the lateral wall of foundation pit was kept away from to the backup pad articulates there are a plurality of bracing pieces, the both ends of bracing piece connect respectively in the diapire of backup pad and foundation pit, a plurality of expansion screw rods are worn to be equipped with by the backup pad spiral, expansion screw rod spiral is provided with and is used for carrying out the expanding structure fixed to the backup pad, the removable butt that is used for that is provided with of one end that the bracing piece is close to the foundation pit diapire the fixed knot who is constructed of backup pad.

Through adopting above-mentioned technical scheme, the wall body supports the lateral wall of foundation ditch, make the butt be convenient for fix the wall body in the backup pad of wall body, thereby fix the lateral wall of foundation ditch, fixed knot constructs the both ends difference butt of messenger's bracing piece in the diapire of backup pad and foundation ditch, expanding structure makes the expansion screw more stable in the lateral wall of foundation ditch, thereby the backup pad that makes to wear to be equipped with the expansion screw fixes the wall body, fixed knot constructs and expanding structure makes bracing piece and expansion screw more stable at the lateral wall of foundation ditch, thereby fixed effect to backup pad and lateral wall of foundation ditch is better.

Optionally, the fixed knot constructs including fixing base and articulated seat, articulated seat is fixed in the upper end of wall body, the fixing base is pegged graft and is set up in the diapire of foundation ditch and corresponds the one end of bracing piece, the lateral wall of fixing base articulate in the bracing piece, the other end of bracing piece articulate in articulated seat.

Through adopting above-mentioned technical scheme, the both ends of bracing piece are connected respectively in fixing base and articulated seat, and fixing base and articulated seat are comparatively firm in foundation ditch diapire and backup pad respectively to it is better to make the bracing piece to the supporting effect of backup pad.

Optionally, the anchor rod is spirally penetrated through the end surface of the fixing seat, and the anchor rod extends into the bottom wall of the foundation pit.

Through adopting above-mentioned technical scheme, inside the stock screw in fixing base and deepened foundation ditch diapire, made the fixing base more stable at the foundation ditch diapire.

Optionally, the expanded structure includes a plurality of branch poles, branch pole equidistance is worn to locate the expansion screw rod extends into inside the foundation ditch lateral wall, and is a plurality of branch pole is worn out the expansion screw rod is followed the radial direction of expansion screw rod extends.

Through adopting above-mentioned technical scheme, a plurality of branch poles extend in the foundation ditch lateral wall, make the branch pole increase at the inside tensile strength of foundation ditch lateral wall, and then increase expansion screw's tensile strength.

Optionally, one end integrated into one piece that the expansion screw was kept away from the wall body is provided with the connecting block, connecting block spiral adaptation has the butt piece, butt piece butt in the expansion screw is kept away from the one end of backup pad.

Through adopting above-mentioned technical scheme, butt piece screw in connecting block makes butt piece butt in expansion bolts to carry out the butt to branch pole, the displacement of restriction branch pole, thereby reduce the influence of external environment to branch pole.

Optionally, a fixed block is fixed to one end, away from the wall, of the expansion screw, and the cross-sectional area of the fixed block is larger than that of the expansion screw.

Through adopting above-mentioned technical scheme, the fixed block is fixed the expansion screw, makes the fixed effect of expansion screw in the soil body better, increases the stability of expansion screw.

Optionally, a plurality of connecting piles penetrate through the adjacent wall bodies.

By adopting the technical scheme, the connecting piles connect the similar wall bodies, so that the wall bodies are connected into a whole, and the overall supporting performance of the wall body is improved.

Optionally, a flow guide groove is formed in one end, close to the supporting plate, of the bottom wall of the foundation pit.

Through adopting above-mentioned technical scheme, the underground infiltration water of foundation ditch lateral wall flows out foundation ditch bottom through the water conservancy diversion ditch, is convenient for concentrate the water conservancy diversion to the foundation ditch lateral wall in the groundwater that the diapire flows out and collect and discharge.

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

1. the support rod is abutted to the support plate to enable the support plate to abut against the wall body, and the other end of the support plate is abutted to the bottom wall of the foundation pit through the fixed seat, the hinge seat and the anchor rod to enable the support plate to abut against the wall body;

2. the expansion screw is pre-buried in the side wall of the foundation pit through the support rod and the fixing block and penetrates through the wall body, so that the expansion screw is more stable in the side wall of the foundation pit, the stability of the wall body is improved together with the support rod, and the supporting performance of the wall body is improved;

3. the connecting piles connect two adjacent wall bodies, and the overall supporting performance of the wall bodies is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a partially enlarged view I of the portion B in FIG. 2;

fig. 4 is a partially enlarged schematic view of a portion C in fig. 2.

Reference numerals: 1. a wall body; 2. a flow guide groove; 3. a support plate; 4. a support bar; 5. a fixed seat; 6. a hinged seat; 7. an anchor rod; 8. an expansion screw; 81. a fixed block; 9. an accommodating chamber; 10. branch rods are arranged; 11. connecting blocks; 12. a butting block; 13. and connecting piles.

Detailed Description

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

The embodiment of the application discloses retaining plate for foundation pit support. Referring to fig. 1, a retaining wall for foundation pit support includes wall body 1, wall body 1 sets up to concrete wall body 1, concrete wall body 1 makes level the one end of keeping away from the foundation ditch lateral wall to wall body 1, it consolidates to be provided with the reinforcing bar in the wall body 1, the one end of wall body 1 is provided with a plurality of backup pads 3, a plurality of backup pads 3 all set up to rectangle steel sheet and equidistance and are fixed in the one end that wall body 1 made level, water conservancy diversion ditch 2 has been seted up to the one end that the diapire of foundation ditch is close to backup pad 3, the orientation of seting up of water conservancy diversion ditch 2 is the same with the extending direction of wall body 1, water conservancy diversion ditch 2 carries out the water conservancy diversion with the groundwater of foundation ditch lateral wall infiltration, be convenient for concentrate and extract the emission.

Referring to fig. 1, the one end equidistance that the foundation ditch lateral wall was kept away from to backup pad 3 articulates there are a plurality of bracing pieces 4, and bracing piece 4 sets up to cuboid metal pole, and the one end of bracing piece 4 articulates and connects in backup pad 3, and the other end of support articulates in the diapire of foundation ditch, makes bracing piece 4 support the up end of backup pad 3.

Referring to fig. 1, a fixing structure for abutting against a supporting plate 3 is detachably arranged at one end of a supporting plate 4 close to the bottom wall of a foundation pit, the fixing structure comprises a fixing seat 5 and hinge seats 6, two identical hinge seats 6 are fixed at one end of the supporting plate 3 far away from the side wall of the foundation pit, a first hinge shaft penetrates through the opposite ends of the two hinge seats 6, a first hinge hole is formed at one end of the supporting plate 4 close to the two hinge seats 6, the hinge shaft penetrates through the first hinge hole of the supporting plate 4, so that one end of the supporting plate 4 is hinged between the two hinge seats 6, the supporting plate 4 is convenient to be fixed at the hinge seat 6 while rotating by taking the hinge shaft as an axis, the fixing seat 5 is spliced at one end of the bottom wall of the foundation pit corresponding to the supporting plate 4, the side wall of the fixing seat 5 is hinged at the supporting plate 4, a hinge groove is formed at one end of the fixing seat 5 close to the supporting plate 4, and a second hinge shaft penetrates through the fixing seat 5 in the hinge groove, the bracing piece 4 has been seted up the second hinge hole near the one end of fixing base 5, and the second hinge hole is worn to locate by the second articulated shaft, makes the other end of bracing piece 4 articulated connect in fixing base 5, and fixing base 5 sets up to the rectangle metal block.

Referring to fig. 2, anchor rod 7 is worn to be equipped with by the terminal surface spiral of fixing base 5, anchor hole has been seted up to anchor rod 7 to fixing base 5, the one end that anchor rod 7 is close to fixing base 5 is provided with the anchor rod head, the diameter size of anchor rod head is greater than the diameter size of anchor hole, inside anchor rod 7 extended into the diapire of foundation ditch, the one end that fixing base 5 was kept away from to anchor rod 7 sets up to the toper, be convenient for anchor rod 7's fixing, inside anchor rod 7 screw in fixing base 5 and deep foundation ditch diapire, thereby it is convenient for support bracing piece 4 to make.

Referring to fig. 3, the screw has been seted up to backup pad 3, a plurality of expansion screw 8 are worn to be equipped with by the spiral in the screw, expansion screw 8 sets up to the metal pole, expansion screw 8 has seted up a plurality ofly along the axis direction and has held chamber 9, it has two perforation to hold chamber 9 and be formed with in expansion screw 8, set up respectively to first perforation and second perforation, the one end that is close to backup pad 3 sets up to first perforation, the one end of keeping away from backup pad 3 sets up to the second perforation, the second is perforated to set up in the lateral wall that expansion screw 8 kept away from backup pad 3 one end, 8 spiral settings of expansion screw are used for carrying out fixed expansion structure to backup pad 3, make expansion screw 8 fix backup pad 3 and wall body 1 at the foundation ditch lateral wall through expansion structure.

Referring to fig. 3, expanding structure includes a plurality of branch poles 10 that divide, branch pole 10 sets up to the diameter and holds the same metal pole of the 9 internal diameters in chamber, a plurality of branch poles 10 wear to locate respectively and hold chamber 9, branch pole 10 is close to the one end of backup pad 3 and the terminal surface parallel and level of expansion screw 8, branch pole 10 is kept away from the one end of backup pad 3 and is worn out expansion screw 8 along holding chamber 9 and perforating from the second with expansion screw 8's lateral wall, a plurality of branch poles 10 are worn out expansion screw 8 and are extended to the foundation ditch lateral wall inside, make branch pole 10 increase at the inside tensile strength of foundation ditch lateral wall, and then increase expansion screw 8's tensile strength.

Referring to fig. 3, expansion screw 8 keeps away from wall body 1's one end integrated into one piece and is provided with connecting block 11, set up to cylindrical metal block, the screw thread has been seted up to connecting block 11's perisporium, connecting block 11 spiral adaptation has butt piece 12, butt piece 12 sets up the metal block for seting up the butt chamber, butt piece 12 in the week side in butt chamber set up with the anti-thread of connecting block 11 adaptation, the week side of connecting block 11 and the one end of butt in expansion screw 8 keep away from backup pad 3 are worn to locate by butt piece 12 spiral, butt piece 12 screw in connecting block 11, make butt piece 12 butt in expansion bolt, thereby carry out the butt to branch 10, restriction branch 10's displacement, thereby reduce the influence of external environment to branch 10.

Referring to fig. 4, one end of the expansion screw 8, which is far away from the wall body 1, is fixed with a fixing block 81, the fixing block 81 is set to be a round cake-shaped metal block, the fixing block 81 is parallel to the end face of the supporting plate 3, the cross-sectional area of the fixing block 81 is larger than that of the expansion screw 8, the fixing block 81 fixes the expansion screw 8, the fixing effect of the expansion screw 8 in the soil body is better, and the stability of the expansion screw 8 is improved.

Referring to fig. 1, a plurality of connecting piles 13 penetrate through adjacent wall bodies 1, the connecting piles 13 are metal piles, the connecting piles 13 are parallel to each other, the connecting piles 13 connect the adjacent wall bodies 1, so that the wall bodies 1 are connected into a whole, and the overall supporting performance of the wall body 1 is improved.

The implementation principle of the foundation pit supporting baffle in the embodiment of the application is as follows:

the groundwater that the lateral wall of foundation ditch 2 will ooze along the foundation ditch carries out the water conservancy diversion, 3 butt of backup pad in wall body 1, the both ends of bracing piece 4 are connected respectively in fixing base 5 and articulated seat 6, articulated seat 6 is fixed in backup pad 3, stock 7 is worn to be equipped with by the terminal surface of fixing base 5, the other end of stock 7 is worn to establish in the soil body of foundation ditch diapire, make fixing base 5 carry out the butt to bracing piece 4 and fixed, pre-buried expansion screw 8 runs through backup pad 3 and extends into the lateral wall of foundation ditch admittedly, fixed block 81 forms expanding structure with branch pole 10, it is better to the supporting effect of backup pad 3 to make expansion screw 8 in the foundation ditch, butt piece 12 screw in connecting block 11 supports tightly to the one end that branch pole 10 is close to backup pad 3, connecting pile 13 is connected a plurality of backup pads 3, increase the holistic supporting effect of backup pad 3 and better to the effect of strutting of wall body 1.

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

Claims

1. The utility model provides a retaining plate for foundation pit support which characterized in that: including wall body (1), the one end of wall body (1) is provided with a plurality of backup pads (3), the one end equidistance that foundation ditch lateral wall was kept away from in backup pad (3) articulates there are a plurality of bracing pieces (4), the both ends of bracing piece (4) connect respectively in backup pad (3) and the diapire of foundation ditch, a plurality of expansion screw rods (8) are worn to be equipped with by backup pad (3) spiral, expansion screw rod (8) spiral is provided with and is used for carrying out the expanding structure fixed to backup pad (3), the removable one end that is close to the foundation ditch diapire in bracing piece (4) is provided with and is used for the butt the fixed knot structure of.

2. The retaining wall of claim 1, wherein: fixed knot constructs including fixing base (5) and articulated seat (6), articulated seat (6) are fixed in the upper end of wall body (1), fixing base (5) are pegged graft and are set up in the diapire of foundation ditch and correspond the one end of bracing piece (4), the lateral wall of fixing base (5) articulate in bracing piece (4), the other end of bracing piece (4) articulate in articulate seat (6).

3. A retaining and protecting shield for a foundation pit as claimed in claim 2, wherein: the anchor rod (7) is spirally arranged on the end face of the fixing seat (5) in a penetrating mode, and the anchor rod (7) extends into the bottom face of the foundation pit.

4. A retaining and protecting shield for a foundation pit as claimed in claim 3, wherein: the expanding structure comprises a plurality of branch rods (10), the branch rods (10) are arranged in a penetrating mode at equal intervals and extend into the side wall of the foundation pit, and the branch rods (10) penetrate out of the expanding screw rod (8) and extend along the radial direction of the expanding screw rod (8).

5. The retaining wall of claim 4, wherein: one end integrated into one piece that expansion screw rod (8) kept away from wall body (1) is provided with connecting block (11), connecting block (11) spiral adaptation has butt piece (12), butt piece (12) butt in expansion screw rod (8) are kept away from the one end of backup pad (3).

6. The retaining wall of claim 5, wherein: a fixed block (81) is fixed at one end, far away from the wall body (1), of the expansion screw rod (8), and the size of the cross section area of the fixed block (81) is larger than that of the expansion screw rod (8).

7. The retaining wall of claim 6, wherein: a plurality of connecting piles (13) penetrate through the wall bodies (1).

8. The retaining wall of claim 7, wherein: the lateral wall of the supporting plate (3) is provided with a flow guide groove (2).