CN219343171U

CN219343171U - Foundation pit supporting soil nailing wall structure

Info

Publication number: CN219343171U
Application number: CN202320713483.4U
Authority: CN
Inventors: 孙文山; 宋学东; 王义林; 王志明; 赵斌; 崔海民
Original assignee: Beijing Urban Construction Fifth Municipal Engineering Group Co ltd
Current assignee: Beijing Urban Construction Fifth Municipal Engineering Group Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-07-14
Anticipated expiration: 2033-04-04

Abstract

The utility model relates to a foundation ditch support soil nailing wall structure, it belongs to the technical field of engineering construction, and it includes the body of rod, body of rod one end lateral wall articulates there are a plurality of branches, a plurality of branches are in the body of rod on the same cross section with the pin joint of body of rod, and a plurality of branches arrange along the circumference lateral wall of body of rod in proper order, one side of branch is provided with drives branch pivoted connecting device, body of rod one end is provided with the lantern ring, the lantern ring cover is in the outside of body of rod, lantern ring and body of rod sliding connection, and branch is in between the one end that the branch is close to the body of rod and the lantern ring, connecting device and lantern ring are connected fixedly, body of rod one side is provided with the fixing device who is used for fixed lantern ring, body of rod one end is kept away from to the body of rod is provided with the sleeve pipe, the sleeve pipe is in the outside of body of rod, the sleeve pipe is along the length direction and the body of rod sliding connection of rod, this application has the effect that improves soil nail sturdiness.

Description

Foundation pit supporting soil nailing wall structure

Technical Field

The application relates to the technical field of buildings, in particular to a foundation pit supporting soil nailing wall structure.

Background

The existing soil nailing wall is a relatively common support method in foundation pit engineering, namely a slope reinforcement type support construction method for reinforcing a foundation pit slope through soil nails, paving a reinforcing steel bar net on the surface of the slope, and then spraying a concrete surface layer and combining the soil slope.

The existing drilling machine is firstly used for drilling holes in soil, the rod body is placed after the holes are formed, cement paste is then injected along the whole length, and the construction of the soil nailing wall is completed.

In view of the above-mentioned related art, the inventors considered that the rod body is placed in the borehole, the rod body is abutted against the bottom side of the borehole by its own weight, and the soil nail formed by injecting cement slurry has a defect of low soil nail firmness because the rod body is not in the center of the soil nail.

Disclosure of Invention

In order to improve the firmness of soil nails, the application provides a foundation pit support soil nail wall structure.

The application provides a foundation ditch support soil nail wall structure adopts following technical scheme:

the utility model provides a foundation ditch support soil nailing wall structure, includes the body of rod, body of rod one end lateral wall articulates there are a plurality of branches, a plurality of branches and the pin joint of the body of rod are in the body of rod on the same cross section, and a plurality of branches arrange along the circumference lateral wall of the body of rod in proper order, one side of branch is provided with drives branch pivoted connecting device, body of rod one end is provided with the lantern ring, the lantern ring cover is in the outside of the body of rod, lantern ring and body of rod sliding connection, and branch is in the one end that the branch is close to the body of rod and between the lantern ring, connecting device and lantern ring are connected fixedly, body of rod one side is provided with the fixing device who is used for fixing the lantern ring, body of rod one end is kept away from to the body of rod is provided with the sleeve pipe, the sleeve pipe is in the outside of rod along the length direction and the body of rod sliding connection of rod of sleeve pipe.

Through adopting above-mentioned technical scheme, the body of rod is placed in the drilling of soil body after, the manual sleeve pipe that promotes of staff removes in to the drilling, the sleeve pipe is in the one end and the lantern ring butt in the drilling, and promote the lantern ring and remove, the lantern ring drives connecting device and removes, connecting device drives branch rotation, after a plurality of branches keep away from the equal circumference lateral wall butt with the drilling of body of rod one end, fixing device fixes the lantern ring, make the lantern ring be difficult for continuing to remove, and the body of rod is in the center of drilling this moment, pour cement paste in to the drilling and form the soil nail, the body of rod is in the center of soil nail, thereby the sturdiness of soil nail has been improved.

Optionally, the draw-in groove has been seted up to the lantern ring lateral wall, and the mounting groove has been seted up to the body of rod lateral wall, and fixing device includes sloping platform and first spring, and the sloping platform sets up in the mounting groove, sloping platform and mounting groove sliding connection, sloping platform and draw-in groove joint adaptation, and sloping platform deviate from body of rod one side and be the inclined plane, and the inclined plane is from last to following down to keep away from branch direction slope setting, and first spring sets firmly between sloping platform and mounting groove inner bottom wall.

Through adopting above-mentioned technical scheme, the sleeve pipe promotes the in-process that the lantern ring removed, at first the lantern ring keep away from the inclined plane butt of sleeve pipe one end and sloping, at the in-process that the lantern ring continued to remove, the sloping moves to the mounting groove, and first spring compresses, and when the draw-in groove was in directly over the sloping, first spring release elasticity promotes sloping joint to the draw-in groove in to play the fixed effect of joint to the sleeve pipe.

Optionally, the body of rod has offered the spacing groove in mounting groove one side, and sloping platform lateral wall fixedly connected with stopper, the stopper is in the spacing inslot, and stopper and body of rod follow the length direction sliding connection in spacing groove.

Through adopting above-mentioned technical scheme, when the in-process that first spring release elasticity promotion sloping platform moved, the stopper removed in the spacing inslot, through the blocking effect of spacing groove one end lateral wall to the stopper, made the sloping platform be difficult for breaking away from with the setting groove.

Optionally, body of rod lateral wall fixedly connected with dog, the dog is in between branch and the mounting groove, and when the sloping platform is in the draw-in groove, the lantern ring is close to branch one end and dog butt.

Through adopting above-mentioned technical scheme, the dog stops the lantern ring and continues to move forward to make the sloping platform be difficult for breaking away from with the draw-in groove, thereby improved the fixed stability of lantern ring.

Optionally, connecting device includes dead lever and slide bar, and the one end and the branch lateral wall of dead lever are articulated, and inside fretwork of dead lever, slide bar one end be in the dead lever with the dead lever along dead lever length direction sliding connection, the slide bar is kept away from dead lever one end and the lantern ring is articulated, and the dead lever lateral wall is provided with the grafting device that is used for pegging graft fixed slide bar.

Through adopting above-mentioned technical scheme, before placing the body of rod in to the drilling, according to the size of drilling diameter, adjust the length that the slide bar is in the dead lever, make fixing device fixed back to the lantern ring, many spinal branchs pole homoenergetic and the circumference lateral wall butt of drilling, after adjusting, use grafting device to fix the slide bar, make dead lever and slide bar relatively fixed, when the in-process that promotes the lantern ring to remove, the lantern ring drives the slide bar and removes, the slide bar drives the dead lever and removes, the dead lever drives branch rotation, thereby connecting device has realized driving branch pivoted function.

Optionally, a plurality of slots have been seted up to slide bar one side, and a plurality of slots are arranged in proper order along the length direction of slide bar, and grafting device includes inserted bar and arm-tie, and the inserted bar sets up in dead lever one side, and the one end of inserted bar runs through the dead lever lateral wall and stretches into in the dead lever, inserted bar and dead lever sliding connection, inserted bar and slot grafting adaptation, and fixed lever one end fixed connection is kept away from to picture peg and inserted bar.

Through adopting above-mentioned technical scheme, after the length adjustment that slide bar and dead lever are connected is accomplished, through the arm-tie orientation slide bar direction removal, the arm-tie drives the inserted bar and removes, makes the inserted bar peg graft to in the slot to make slide bar and dead lever obtain fixedly.

Optionally, the pulling plate is close to the dead lever one side and is set firmly the second spring between the dead lever, and the second spring overlaps in the outside of inserted bar.

Through adopting above-mentioned technical scheme, when adjusting the length that slide bar and dead lever are connected, the pulling plate is pulled towards deviating from the dead lever direction, the pulling plate drives the inserted bar and removes, simultaneously the second spring stretches, reconcile the back, loosen the pulling plate, the second spring contracts, drive the pulling plate and remove towards the dead lever direction, the pulling plate drives the inserted bar and removes, the inserted bar inserts in the slot, simultaneously when the inserted bar is along deviating from the slot direction and remove, the second spring produces the resistance, make the inserted bar be difficult for along deviating from the slot direction and remove, thereby improved the fixed stability of inserted bar and slot grafting.

Optionally, the pole body one end that keeps away from is connected with the gyro wheel in a rolling way.

Through adopting above-mentioned technical scheme, branch is carrying out pivoted in-process, and branch that is close to the drill hole bottom side can slide along the bottom side, and the gyro wheel rolls at the drill hole bottom side along with branch, through the setting of gyro wheel, has reduced the frictional force of branch and drilling lateral wall, provides convenience for branch rotation.

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

1. the sleeve is pushed to move by the sleeve, the sleeve drives the connecting device to move, the connecting device drives the supporting rods to rotate, one ends of the plurality of supporting rods far away from the rod bodies are all abutted against the side walls of the drilled holes, so that the supporting rods are positioned in the center of the drilled holes, cement slurry is poured into the drilled holes, the supporting rods are positioned in the center of the soil nails, and the firmness of the soil nails is improved;

2. the lantern ring is fixed through the fixing device, so that the lantern ring is not easy to slide on the rod body at will, and meanwhile, the supporting rod is not easy to rotate at will;

3. the fixing rod and the sliding rod are fixed through the plugging device, so that the connection length of the sliding rod and the fixing rod is not easy to change.

Drawings

Fig. 1 is a schematic structural view of a foundation pit supporting soil nailing wall structure according to an embodiment of the present application;

FIG. 2 is a cross-sectional view showing the internal structure of the rod body in the embodiment of the present application;

FIG. 3 is an enlarged schematic view of a portion A of FIG. 2;

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

In the figure, 1, a rod body; 11. a placement groove; 12. a limit groove; 2. a support rod; 3. a connecting device; 31. a fixed rod; 32. a slide bar; 321. a slot; 4. a collar; 41. a clamping groove; 5. a fixing device; 51. a ramp; 511. a limiting block; 52. a first spring; 6. a sleeve; 7. a stop block; 8. a plug-in device; 81. a rod; 82. pulling a plate; 821. a second spring; 9. and a roller.

Detailed Description

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

The embodiment of the application discloses a foundation pit support soil nailing wall structure.

Referring to fig. 1, a foundation pit supporting soil nailing wall structure comprises a rod body 1, three support rods 2 are hinged at one end of the rod body 1, three support rods 2 are evenly distributed on the circumferential side wall of the rod body 1, the hinge points of the three support rods 2 and the rod body 1 are located on the same cross section of the rod body 1, one end of the support rod 2, far away from the rod body 1, is in rolling connection with a roller 9, a lantern ring 4 is arranged at the side wall of the rod body 1, the lantern ring 4 is sleeved on the outer side of the rod body 1, the lantern ring 4 and the rod body 1 are in sliding connection with each other along the length direction of the rod body 1, a connecting device 3 for driving the support rod 2 to rotate is arranged on one side of the support rod 2, one end, far away from the support rod 2, of the connecting device 3 is fixedly connected with the lantern ring 4, a sleeve 6 is arranged at one end, far away from the support rod 2, of the sleeve 6 is sleeved on the outer side of the rod body 1, the length direction of the sleeve 6 is parallel to the rod body 1, and the sleeve 6 is in sliding connection with the length direction of the rod body 1.

After body of rod 1 is placed in the drilling, and body of rod 1 connects the one end of branch 2 and is in the innermost of drilling, promote sleeve pipe 6 and remove towards the inside direction of drilling, sleeve pipe 6 and lantern ring 4 butt, promote lantern ring 4 and continue to remove, lantern ring 4 drives connecting device 3 and removes, connecting device 3 drives branch 2 rotation, in the pivoted in-process of branch 2, gyro wheel 9 rolls on the drilling lateral wall, gyro wheel 9 has reduced the frictional force between branch 2 and the drilling lateral wall, it is convenient to rotate for branch 2, after body of rod 1 one end all and drilling circumference lateral wall butt are kept away from to three branch 2, body of rod 1 is in the center of drilling this moment, carry out the grout to the drilling and pour, obtain the soil nail, and body of rod 1 is in the center of soil nail, thereby the sturdiness of soil nail has been improved.

Referring to fig. 2 and 3, the clamping groove 41 is formed on one side, close to the rod body 1, of the collar 4, the mounting groove 11 is formed in the side wall of the rod body 1, the fixing device 5 used for fixing the collar 4 is arranged in the mounting groove 11, the fixing device 5 comprises an inclined table 51 and a first spring 52, the inclined table 51 is arranged in the pressing groove, the inclined table 51 and the rod body 1 are in sliding connection at the mounting groove 11, the inclined surface of the inclined table 51 is inclined from one side, away from the inner bottom wall of the mounting groove 11, the inclined surface is obliquely arranged from top to bottom in the direction away from the supporting rod 2, the inclined table 51 and the clamping groove 41 are in clamping fit, the first spring 52 is fixedly arranged between the inclined table 51 and the inner bottom wall of the mounting groove 11, the limiting groove 12 is formed in one side, close to the limiting groove 12, and the limiting block 511 is fixedly connected to one side, close to the limiting block 12, of the inclined table 51 is in the limiting groove 12 and the rod body 1 is in sliding connection in the length direction of the limiting groove 12.

The side wall of the rod body 1 is fixedly connected with a stop block 7, the stop block 7 is annular, the stop block 7 is positioned on one side of the placement groove 11 close to the supporting rod 2, and after the sloping stand 51 and the clamping groove 41 are clamped and fixed, one end of the lantern ring 4, which is far away from the sleeve 6, is abutted against the stop block 7.

In the process that sleeve pipe 6 promotes sleeve pipe 4 and removes, sleeve pipe 4 deviates from sleeve pipe 6's one side and the inclined plane butt of sloping platform 51, in the in-process that sleeve pipe 4 continues to remove, sloping platform 51 moves to the internal portion of standing groove 11, first spring 52 compresses, when draw-in groove 41 is in directly over sloping platform 51, first spring 52 release elasticity, promote sloping platform 51 and remove towards draw-in groove 41 direction, make sloping platform 51 joint to draw-in groove 41 in, fix sleeve pipe 4, sleeve pipe 6 one side and dog 7 butt of deviating from this moment, dog 7 stops sleeve pipe 4 and continues to move forward, thereby make sloping platform 51 be difficult for breaking away from with draw-in groove 41, fixing device 5 is to the fixed stability of sleeve pipe 4, in the in-process that sloping platform 51 removed, sloping platform 51 drives stopper 511 and moves in spacing groove 12, after stopper 511 and spacing groove 12 one end lateral wall butt, make sloping platform 51 difficult for continuing to remove along deviating from the direction of standing groove 11, thereby make sloping platform 51 and standing groove 11 difficult for breaking away from.

Referring to fig. 2 and 4, the connecting device 3 comprises a fixing rod 31 and a sliding rod 32, one end of the fixing rod 31 is hinged with the side wall of the supporting rod 2, the fixing rod 31 is hollow, one end of the sliding rod 32 is located in the fixing rod 31, the sliding rod 32 is slidably connected with the fixing rod 31 along the length direction of the fixing rod 31, one end of the sliding rod 32 far away from the fixing rod 31 is hinged with one side of the lantern ring 4 far away from the rod body 1, and one end of the fixing rod 31 far away from the supporting rod 2 is provided with a plugging device 8 for plugging the fixing sliding rod 32.

A plurality of slots 321 have been seted up to slide bar 32 one side, a plurality of slots 321 arrange in proper order along the length direction of slide bar 32, plug device 8 includes inserted bar 81 and arm-tie 82, inserted bar 81 sets up in the dead lever 31 outside, inserted bar 81 and dead lever 31 are perpendicular, inserted bar 81 runs through dead lever 31 to stretch into in the dead lever 31 near dead lever 31 one end, inserted bar 81 and slot 321 grafting adaptation, arm-tie 82 and inserted bar 81 keep away from fixed plate one end fixed connection, arm-tie 82 and arm-tie 81 are perpendicular, set firmly second spring 821 between arm-tie 82 and dead lever 31, second spring 821 cover is in the outside of inserted bar 81.

According to the size of drilling diameter, adjust the length that slide bar 32 and dead lever 31 are connected, make three branch 2 keep away from the one end homoenergetic of body of rod 1 and drilling circumference lateral wall butt, during the regulation, pulling arm-tie 82 moves towards deviating from dead lever 31 direction, arm-tie 82 drives inserted bar 81 and removes, the second spring 821 stretches, after the mediation is accomplished, loosen arm-tie 82, second spring 821 contracts, drive arm-tie 82 and remove towards the dead lever 31 direction, arm-tie 82 drives inserted bar 81 and removes, make inserted bar 81 insert in slot 321, thereby make slide bar 32 and dead lever 31 relatively fixed.

The implementation principle of the foundation pit supporting soil nailing wall structure is as follows: placing body of rod 1 in the drilling, and body of rod 1 articulates the one end of branch 2 and is in the deepest of drilling, the staff promotes sleeve pipe 6 towards drilling direction, sleeve pipe 6 and lantern ring 4 butt, and promote lantern ring 4 and continue to remove, the in-process that lantern ring 4 removed, drive connecting device 3 and remove, connecting device 3 drive branch 2 rotates, make the one end that keeps away from body of rod 1 of three branch 2 all with the circumferential side wall butt of drilling, rethread fixing device 5 is fixed sleeve pipe 4, outside the orientation drilling remove sleeve pipe 6, make sleeve pipe 6 and body of rod 1 break away from, pour grout in the drilling, form the soil nail, keep away from body of rod 1 one end and the circumferential side wall butt of drilling through three branch 2, make body of rod 1 be in the center of drilling, be in the center of soil nail simultaneously, thereby the sturdiness of soil nail has been improved.

The embodiments of the present utility model are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a foundation ditch support soil nail wall structure, includes body of rod (1), its characterized in that: the utility model provides a novel structure of a rod body, including body (1) one end lateral wall articulates there is a plurality of branches (2), hinge point that a plurality of branches (2) and body (1) are in body (1) same cross section on, and a plurality of branches (2) are arranged in proper order along the circumference lateral wall of body (1), one side of branch (2) is provided with drives branch (2) pivoted connecting device (3), body (1) one end is provided with lantern ring (4), lantern ring (4) cover is in the outside of body (1), lantern ring (4) and body (1) sliding connection, and branch (2) are in branch (2) be close to between the one end of body (1) and lantern ring (4), connecting device (3) and lantern ring (4) are connected fixedly, body (1) one side is provided with fixing device (5) that are used for fixing lantern ring (4), body (1) are kept away from branch (2) one end and are provided with sleeve (6), sleeve (6) cover in the outside of body (1), sleeve (6) are in the length direction and body (1) sliding connection of body (1) of rod.

2. The foundation pit supporting soil nailing wall structure of claim 1, wherein: clamping grooves (41) are formed in the side wall of the lantern ring (4), the mounting grooves (11) are formed in the side wall of the rod body (1), the fixing device (5) comprises an inclined table (51) and a first spring (52), the inclined table (51) is arranged in the mounting grooves (11), the inclined table (51) is connected with the mounting grooves (11) in a sliding mode, the inclined table (51) is matched with the clamping grooves (41) in a clamping mode, one side of the inclined table (51) faces away from the rod body (1) to be an inclined surface, the inclined surface is obliquely arranged from top to bottom along the direction away from the supporting rod (2), and the first spring (52) is fixedly arranged between the inclined table (51) and the inner bottom wall of the mounting grooves (11).

3. The foundation pit supporting soil nailing wall structure of claim 2, wherein: the rod body (1) is provided with a limit groove (12) at one side of the placement groove (11), the side wall of the inclined table (51) is fixedly connected with a limit block (511), the limit block (511) is positioned in the limit groove (12), and the limit block (511) and the rod body (1) are in sliding connection along the length direction of the limit groove (12).

4. The foundation pit supporting soil nailing wall structure of claim 2, wherein: the side wall of the rod body (1) is fixedly connected with a stop block (7), the stop block (7) is positioned between the support rod (2) and the placement groove (11), and when the inclined table (51) is positioned in the clamping groove (41), one end of the sleeve ring (4) close to the support rod (2) is abutted against the stop block (7).

5. The foundation pit supporting soil nailing wall structure of claim 1, wherein: connecting device (3) are including dead lever (31) and slide bar (32), and the one end and the branch (2) lateral wall of dead lever (31) are articulated, and inside fretwork of dead lever (31), slide bar (32) one end are in dead lever (31) and dead lever (31) are followed dead lever (31) length direction sliding connection, and dead lever (31) one end and lantern ring (4) are kept away from to slide bar (32) are articulated, and dead lever (31) lateral wall is provided with grafting device (8) that are used for grafting dead lever (32).

6. The foundation pit supporting soil nailing wall structure of claim 5, wherein: a plurality of slots (321) have been seted up on slide bar (32) one side, a plurality of slots (321) are arranged in proper order along the length direction of slide bar (32), grafting device (8) are including inserted bar (81) and arm-tie (82), inserted bar (81) set up in dead lever (31) one side, the one end of inserted bar (81) runs through dead lever (31) lateral wall and stretches into in dead lever (31), inserted bar (81) and dead lever (31) sliding connection, inserted bar (81) and slot (321) grafting adaptation, arm-tie (82) and inserted bar (81) are kept away from dead lever (31) one end fixed connection.

7. The foundation pit supporting soil nailing wall structure of claim 6, wherein: the pull plate (82) is fixedly provided with a second spring (821) between one side close to the fixed rod (31) and the fixed rod (31), and the second spring (821) is sleeved on the outer side of the inserted rod (81).

8. The foundation pit supporting soil nailing wall structure of claim 1, wherein: one end of the supporting rod (2) far away from the rod body (1) is connected with a roller (9) in a rolling way.