CN112761168B

CN112761168B - Foundation pit supporting device

Info

Publication number: CN112761168B
Application number: CN202110314060.0A
Authority: CN
Inventors: 陈克军
Original assignee: Wuxi Rongliang Construction Development Co ltd
Current assignee: Wuxi Rongliang Construction Development Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-09-17
Anticipated expiration: 2041-03-24
Also published as: CN112761168A

Abstract

The utility model relates to a foundation pit supporting device, its guide pile including the foundation pit lateral wall of contradicting, the guide pile all is provided with one in the corner of foundation pit, and is adjacent be equipped with between the guide pile and strut the subassembly, strut guan liang, sliding connection that the subassembly includes the level setting in a plurality of unit of strutting of guanliang, the both ends of guanliang all are connected with and are used for inserting the internal stock one of foundation pit soil, are close to be connected with coupling assembling between guide pile and the stock of stock one, be connected with the support frame on the unit of strutting, fixedly connected with is used for inserting the internal stock two of foundation pit soil on the support frame. This application has the effect that improves foundation ditch support's stability.

Description

Foundation pit supporting device

Technical Field

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

Background

The deep foundation pit support is a measure for supporting, reinforcing and protecting the side wall of the deep 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. Common deep foundation pit supporting forms include deep-layer stirring cement-soil enclosing walls, channel steel sheet piles, reinforced concrete sheet piles, cast-in-situ bored piles and the like.

With respect to the related art in the above, the inventors consider that: in deep foundation pit supporting, most of pile anchor supporting adopts a plurality of reinforced concrete bodies as supporting bodies to support the single-side inner wall of a foundation pit respectively, and the supporting structure has small bending moment and poor soil pressure resistance.

Disclosure of Invention

In order to improve excavation supporting's stability, this application provides an excavation supporting device.

The application provides a foundation ditch supporting device adopts following technical scheme:

the utility model provides a foundation pit supporting device, includes the guide pile of the foundation ditch lateral wall of contradicting, the guide pile all is provided with one in the corner of foundation ditch, and is adjacent be equipped with between the guide pile and strut the subassembly, strut guan liang, sliding connection that the subassembly includes the level setting in a plurality of units of strutting of guanliang, the both ends of guanliang all are connected with and are used for inserting the internal stock one of foundation ditch soil, are close to be connected with coupling assembling between guide pile and the stock one of stock one, be connected with the support frame on the unit of strutting, fixedly connected with is used for inserting the internal stock two of foundation ditch soil on the support frame.

Through adopting above-mentioned technical scheme, the spud and the cooperation of strutting the subassembly, constitute an end to end's supporting construction in the foundation ditch, have better stability and anti deformability for the resistance performance of foundation ditch supporting device promotes greatly, thereby supports more stably to the foundation ditch.

Optionally, the spud pile includes the pile body of vertical setting, connects the chassis in the pile body bottom, the top of pile body is connected with draws the anchor rope to one side, the anchor rope is kept away from in the soil layer of the foundation ditch outside is located to the tip of pile body, diapire in the foundation ditch is contradicted on the chassis, the lower surface shaping on chassis has a plurality of enhancement claws that are located the inside soil in situ of foundation ditch, fixedly connected with bracing piece between the lateral wall of pile body and the chassis.

Through adopting above-mentioned technical scheme, the anchor rope is fixed the position of spud with strengthening the claw, and the bracing piece supports the spud, when guaranteeing spud stability, has improved the effect of strutting of spud.

Optionally, coupling assembling locates the connection pad of stock one, compresses tightly the clamping ring in connection pad and chassis top including fixed cover, it has the holding tank that is used for holding the connection pad to open on the chassis, a through chassis of stock, wear to be equipped with the stop nut of vertical setting on the clamping ring, stop nut's bottom threaded connection is in the chassis.

Through adopting above-mentioned technical scheme, coupling assembling has realized strutting the connection between subassembly and the spud through connecting connection pad and bottom plate, and in addition, the clamping ring is connected through stop nut, easily installs and dismantles, when reducing the engineering time, has realized cyclic utilization, saves the resource.

Optionally, the end face of the crown beam is provided with a sliding groove along the length direction thereof, the supporting unit comprises a supporting block positioned in the sliding groove and a supporting rod vertically connected to the bottom surface of the supporting block, two adjacent supporting blocks are mutually abutted, and the same reinforcing rope is wound on the supporting rod of the same group of supporting assemblies.

By adopting the technical scheme, the reinforcing ropes connect a plurality of supporting units into a whole, so that the bending moment of the supporting rod is increased, and the supporting effect of the supporting units is improved.

Optionally, a retaining ring is fixedly connected to the anchor rod I, and mountain climbing buckles detachably connected with the retaining ring are connected to the end portions of the reinforcing ropes.

Through adopting above-mentioned technical scheme, strengthen rope and stock one and link to each other, further increased the stability of strutting the subassembly for the excavation supporting device is more stable to the support of foundation ditch, and in addition, it is convenient to dismouting between mountain-climbing buckle and the buckle, and along with the increase of live time, it produces ageing to strengthen the rope, changes the enhancement rope, has guaranteed the result of use of strengthening the rope.

It is optional, the both ends of hat the roof beam are all rotated and are connected with the mounting panel, are close to the supporting piece conflict mounting panel of hat the roof beam tip, a stock fixed connection deviates from the side of hat the roof beam in the mounting panel, the handing-over department cover of hat roof beam and mounting panel is equipped with square clamp, fixedly connected with inserted bar one and inserted bar two on the inner wall of square clamp, it has the jack one that is used for holding inserted bar one to open on the mounting panel, it has the jack two that is used for holding inserted bar two to open on the hat the roof beam.

Through adopting above-mentioned technical scheme, the mounting panel is spacing to strutting the piece, has improved the stability of strutting the unit, and square clamp locks mounting panel and crown beam, and the dismouting is convenient.

Optionally, the support frame includes that the cover establishes a supporting beam on a bracing piece, connects in a supporting beam and be close to the inside one side's of foundation ditch backup pad, be connected with the crossbar between backup pad and the bracing piece.

Through adopting above-mentioned technical scheme, the stock two passes through the backup pad, forms reverse support to each bracing pole, and the crossbar has improved the intensity between backup pad and the bracing pole, has reduced the possibility that the bracing pole orientation is toppled over to the foundation ditch in.

Optionally, a waist rail is arranged on one side, facing the side wall of the foundation pit, of the supporting beam, a hook is fixedly connected to one side, facing the side wall of the foundation pit, of the supporting beam, and the waist rail is placed on the hook.

By adopting the technical scheme, the supporting area of the supporting beam is increased, the supporting areas of the supporting beams are connected into a whole by the waist beam, the stress uniformity of the supporting beams during supporting is improved, and the possibility that the supporting beams are damaged due to uneven stress is reduced.

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

1. the positioning pile is matched with the supporting component, and an end-to-end supporting structure is formed in the foundation pit, so that the stability and the deformation resistance are better, the resistance performance of the foundation pit supporting device is greatly improved, and the foundation pit is more stably supported;

2. the reinforcing ropes connect the plurality of supporting units into a whole, so that the bending moment of the supporting rod is increased, and the supporting effect of the supporting units is improved;

3. the two inserted rods pass through the supporting plate to form reverse support for each supporting rod, the cross rods improve the strength between the supporting plate and the supporting rods, and the possibility that the supporting rods incline towards the inside of the foundation pit is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an excavation supporting device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a spud according to an embodiment of the present application.

Figure 3 is a schematic structural view of a bracing assembly according to an embodiment of the application.

Figure 4 is a cross-sectional view of a support block of an embodiment of the present application.

FIG. 5 is a cross-sectional view of a square clamp of an embodiment of the present application

Description of reference numerals: 1. positioning the pile; 101. a pile body; 1011. an anchor cable; 102. a chassis; 1021. a reinforcing claw; 1022. accommodating grooves; 103. a support bar; 2. a support assembly; 3. a crown beam; 301. a chute; 3011. a guide groove; 302. mounting a plate; 3021. a pin shaft; 3022. a connecting seat; 3023. a first jack; 3024. a second jack; 3025. a first anchor rod; 4. a support unit; 401. a support block; 4011. a guide strip; 402. a support bar; 4021. a sleeve; 4022. passing through a wire groove; 5. a square hoop; 501. inserting a first rod; 502. a second inserted link; 6. a connecting assembly; 601. a connecting disc; 602. pressing a ring; 6021. a limit nut; 7. a reinforcing cord; 701. climbing buckles; 8. a retaining ring; 9. a support frame; 901. a support beam; 9011. a cross bar; 9012. hooking; 902. a support plate; 9021. an anchor rod II; 10. a wale.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a foundation pit supporting device. Referring to fig. 1, the foundation pit supporting device comprises four positioning piles 1, wherein the four positioning piles 1 are uniformly distributed at four corners in a foundation pit, and a supporting component 2 is connected between every two adjacent positioning piles 1. The spud 1 cooperates with the supporting component 2, supports the foundation ditch to every lateral wall of foundation ditch, and simultaneously, spud 1 and supporting component 2 become a holistic supporting construction in the foundation ditch, and the anti-deformation is effectual for the resistance to force performance of excavation supporting device promotes greatly, thereby supports more stably to the foundation ditch.

Referring to fig. 2, the positioning pile 1 comprises a vertical pile body 101 and a chassis 102, the pile body 101 is vertically arranged, the cross section of the pile body 101 in the horizontal direction is a right-angled triangle, and the side face where the right-angled edge is located is attached to the side wall of the foundation pit. The top of pile body 101 is connected with anchor rope 1011, and the tip that anchor rope 1011 kept away from pile body 101 is located the soil horizon outside the foundation ditch.

Referring to fig. 2, the base plate 102 is fixedly connected to the bottom of the pile body 101, the base plate 102 is horizontally disposed and abuts against the inner bottom wall of the foundation pit, and a support rod 103 is fixedly connected between the side wall of the pile body 101 near the inside of the foundation pit and the base plate 102. A plurality of reinforcing claws 1021 are formed on the lower surface of the chassis 102, and the reinforcing claws 1021 extend into the foundation pit soil body.

Anchor rope 1011 and reinforcement claw 1021 cooperate, have realized the stable of spud 1 and have placed, and bracing piece 103, chassis 102 and pile body 101 constitute the triangle-shaped structure that has high stability, have improved spud 1 and to the effect of strutting of foundation ditch corner.

Referring to fig. 3 and 4, a set of supporting assemblies 2 is described as an example, each supporting assembly 2 comprises a top beam 3 and a supporting unit 4, the top beam 3 is horizontally arranged, and the side surface of the long edge of the top beam 3 abuts against the side wall of the foundation pit. The support units 4 are slidably connected to the crown beam 3, and a plurality of support units are provided along the longitudinal direction of the crown beam 3.

Referring to fig. 3 and 4, the end surface of the crown beam 3 is provided with a sliding groove 301 along the length direction thereof, and the sliding groove 301 is a through groove. Support unit 4 and include supporting piece 401 and a pole 402, support piece 401 and slide in spout 301, support pole 402 fixed connection in the bottom surface of supporting piece 401, and support pole 402 vertical setting, the tank bottom of spout 301 is opened along the length direction of spout 301 has the shifting chute that supplies to support pole 402 and slide.

Referring to fig. 3, mounting plates 302 are provided at both ends of the crown beam 3, a pin 3021 is provided at an upper portion of each mounting plate 302, and the pin 3021 is parallel to the wide side of the crown beam 3. The mounting plate 302 is rotatably sleeved on the pin roll 3021, the two ends of the pin roll 3021 are fixedly connected with connecting seats 3022, and the connecting seats 3022 are fixedly connected to the crown beam 3.

Referring to fig. 3 and 5, a square hoop 5 is sleeved at the joint of the crown beam 3 and the mounting plate 302, and a first vertically-arranged insertion rod 501 and a second vertically-arranged insertion rod 502 are fixedly connected to the inner bottom wall of the square hoop 5. The bottom surface of the mounting plate 302 is provided with a first insertion hole 3023 used for accommodating the first insertion rod 501, and the bottom surface of the crown beam 3 is provided with a second insertion hole 3024 used for accommodating the second insertion rod 502.

The first insert rod 501, the second insert rod 502 and the square hoop 5 are matched to limit the mounting plate 302, so that the supporting unit 4 is limited. During installation, an operator puts the supporting blocks 401 into the installation plate 302, so that the two adjacent supporting blocks 401 are mutually abutted. After placement is completed, mounting plate 302 is rotated until mounting plate 302 abuts the end face of crown beam 3, at which point mounting plate 302 abuts support block 401, completing assembly of support assembly 2.

Referring to fig. 4, in order to improve the sliding stability of the supporting block 401 during installation, guide grooves 3011 are formed in two opposite vertical side walls of the sliding groove 301, the guide grooves 3011 are formed along the length direction of the sliding groove 301, and the guide grooves 3011 are dovetail grooves. The supporting block 401 is fixedly connected with a guide strip 4011 sliding in the guide slot 3011, and the guide strip 4011 is a dovetail strip.

Supporting subassembly 2 equipment is simple, the simple operation, and the effect of reaching supporting that can be quick saves the required time of construction in the installation, has further shortened the engineering time, in addition, can retrieve supporting subassembly 2 after the construction is accomplished, realizes supporting subassembly 2's recycle, has reduced the waste of resource.

Referring to fig. 2, an anchor rod 3025 is fixedly connected to the side surface of each mounting plate 302, which faces away from the crown beam 3, the anchor rod 3025 is inclined towards the ground, and the lower end of the anchor rod 3025 is inserted into the soil of the foundation pit. A connecting assembly 6 is connected between the anchor rod 3025 and the positioning pile 1 adjacent to the anchor rod 3025, and the anchor rod 3025 and the positioning pile 1 form a whole through the connecting assembly, so that the supporting assembly 2 and the positioning pile 1 form a whole supporting structure.

Referring to fig. 2, the connecting assembly 6 includes a connecting disc 601 and a pressing ring 602, the connecting disc 601 is horizontally disposed, a first anchor rod 3025 sequentially penetrates through the connecting disc 601 and the chassis 102, and the first anchor rod 3025 is fixedly connected with the connecting disc 601. The upper surface of chassis 102 is opened there is holding tank 1022, and holding tank 1022 is the heavy groove, and connection pad 601 places in holding tank 1022, and the top surface of connection pad 601 and the top surface of chassis 102 are the parallel and level mutually.

Referring to fig. 2, the pressing ring 602 is located above the interface between the land 601 and the bottom chassis 102, and the lower surface of the pressing ring 602 abuts against the land 601 and the bottom chassis 102. A plurality of vertically arranged limit nuts 6021 are screwed on the pressure ring 602, the limit nuts 6021 are arranged along the circumferential direction of the pressure ring 602, and the bottom end of the limit nut 6021 is screwed in the chassis 102.

Referring to fig. 3, a reinforcing rope 7 is connected between two anchor rods 3025 located at both sides of the crown beam 3, and the reinforcing rope 7 is wound around the rod body of each support rod 402 of the same set of support assemblies 2. Both ends of the reinforcing rope 7 are connected with mountain climbing buckles 701. Equal fixedly connected with buckle 8 on every stock 3025, climbing buckle 701 and buckle 8 can dismantle the connection, and it is simple to strengthen 7 installations of rope, simultaneously, when strengthening 7 ageing backs of rope, easily change strengthening rope 7.

Referring to fig. 3 and 4, in order to define the position of the reinforcing cord 7 on the support rods 402, a sleeve 4021 is fixedly sleeved on each support rod 402, a warp groove 4022 is formed in the circumferential wall of the sleeve 4021 along the circumferential direction thereof, and the reinforcing cord 7 is located in the warp groove 4022.

The reinforcing rope 7 is connected with the supporting rods 402, and a plurality of supporting rods 402 are connected into a whole, so that the bending moment of the supporting rods 402 is increased, and the supporting effect of the supporting unit 4 is improved. Simultaneously, strengthen rope 7 and stock 3025 and link to each other, increased the stability of strutting subassembly 2 for the foundation ditch supporting device is more stable to the support of foundation ditch.

Referring to fig. 4, in order to further increase the stability of the supporting assembly 2 and improve the supporting effect, a supporting frame 9 is connected to each supporting unit 4, and the supporting frame 9 includes a supporting beam 901 and a supporting plate 902. The support beams 901 are arranged parallel to the crown beam 3 and fixedly sleeved on the support rod 402, and two adjacent support beams 901 are abutted against each other.

Referring to fig. 4, the supporting plate 902 is fixedly connected to the side surface of the supporting beam 901 close to the inside of the foundation pit, and a cross bar 9011 is fixedly connected between the supporting plate 902 and the supporting rod 402. An anchor rod II 9021 is fixedly connected to the side wall, away from the supporting beam 901, of the supporting plate 902, the anchor rod II 9021 is obliquely arranged towards the ground, and the lower end of the anchor rod II 9021 is inserted into a soil body of the foundation pit. The second anchor rod 9021 forms reverse support for each support rod 402 through the support plate 902, the cross rods 9011 improve strength between the support plate 902 and the support rods 402, and the possibility that the support rods 402 incline towards the inside of a foundation pit is reduced.

Referring to fig. 4, the middle of the bottom surface of each support beam 901 is fixedly connected with hooks 9012, the same wale 10 is placed on all the hooks 9012, and the wale 10 abuts against the support beam 901 and is located on one side of the support beam 901 away from the second anchor rod 9021.

The supporting area of the supporting beam 901 is increased, the supporting area of the supporting beams 901 is integrated by the waist beam 10, the stress uniformity of the supporting beams 901 is improved during supporting, the possibility that the supporting beams 901 are damaged due to uneven stress is reduced, and the service life is prolonged.

The implementation principle of the foundation pit supporting device in the embodiment of the application is as follows: the supporting unit 4 forms a supporting assembly 2 through the crown beam 3 and the mounting plate 302, the square hoop 5 achieves locking of the mounting plate 302 and the crown beam 3, and the supporting assembly 2 is matched with the anchor rod I3025 to support a foundation pit. Meanwhile, the anchor rod II 9021, the supporting plate 902 and the cross rods 9011 act together to form reverse supporting for each supporting assembly 2, and supporting effect on the foundation pit is improved. In addition, the connection between the supporting component 2 and the positioning pile 1 is realized through the connection between the connecting disc 601 and the chassis 102, and the supporting component 2 and the positioning pile 1 form an integral supporting structure in the foundation pit, so that the resistance performance of the foundation pit supporting device is greatly improved, and the foundation pit is supported more stably.

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 foundation ditch support device which characterized in that: including the spud pile (1) of contradicting foundation ditch lateral wall, spud pile (1) all is provided with one in the corner of foundation ditch, and adjacent be equipped with between spud pile (1) and strut subassembly (2), strut subassembly (2) including crown beam (3), a plurality of support unit (4) of sliding connection in crown beam (3) that the level set up, the both ends of crown beam (3) all are connected with and are used for inserting anchor rod one (3025) in the foundation ditch soil body, be close to be connected with coupling assembling (6) between spud pile (1) and anchor rod one (3025) of anchor rod one (3025), be connected with support frame (9) on strut unit (4), fixedly connected with anchor rod two (9021) that are used for inserting in the foundation ditch soil body on support frame (9), coupling assembling (6) including fixed cover locate connection pad (601) of anchor rod one (3025), compress tightly clamping ring (602) above connection pad (601) and chassis (102), the chassis (102) is provided with an accommodating groove (1022) for accommodating the connecting disc (601), the anchor rod I (3025) penetrates through the chassis (102), the pressing ring (602) is provided with a limit nut (6021) in a penetrating mode, and the bottom end of the limit nut (6021) is in threaded connection with the chassis (102).

2. An excavation supporting apparatus as claimed in claim 1, wherein: positioning pile (1) including vertical pile body (101) that sets up, connect chassis (102) in pile body (101) bottom, the top of pile body (101) is connected with cable-stayed anchor rope (1011) to one side, in the soil layer in the foundation ditch outside is located to the tip of keeping away from pile body (101) cable-stayed anchor rope (1011) to one side, diapire in the foundation ditch is contradicted in chassis (102), the lower surface shaping on chassis (102) has a plurality of enhancement claws (1021) that are located the inside soil layer of foundation ditch, fixedly connected with bracing piece (103) between the lateral wall of pile body (101) and chassis (102).

3. An excavation supporting apparatus as claimed in claim 1, wherein: the end face of the crown beam (3) is provided with a sliding groove (301) along the length direction, the supporting unit (4) comprises supporting blocks (401) located in the sliding groove (301) and supporting rods (402) vertically connected to the bottom surfaces of the supporting blocks (401), the two adjacent supporting blocks (401) are mutually abutted, and the same reinforcing rope (7) is wound on the supporting rods (402) of the same group of supporting assemblies (2).

4. An excavation supporting means as claimed in claim 3, wherein: fixedly connected with buckle (8) on stock (3025), the tip of strengthening rope (7) all is connected with can dismantle mountain-climbing buckle (701) of being connected with buckle (8).

5. An excavation supporting means as claimed in claim 3, wherein: the both ends of hat roof beam (3) are all rotated and are connected with mounting panel (302), are close to the supporting piece (401) of hat roof beam (3) tip and contradict mounting panel (302), an anchor rod (3025) fixed connection deviates from the side of hat roof beam (3) in mounting panel (302), the handing-over department cover of hat roof beam (3) and mounting panel (302) is equipped with square clamp (5), fixedly connected with inserted bar (501) and inserted bar two (502) on the inner wall of square clamp (5), it has jack one (3023) that are used for holding inserted bar (501) to open on mounting panel (302), it has jack two (3024) that are used for holding inserted bar two (502) to open on hat roof beam (3).

6. An excavation supporting means as claimed in claim 3, wherein: the supporting frame (9) comprises a supporting beam (901) sleeved on the supporting rod (402) and a supporting plate (902) connected to one side of the supporting beam (901) close to the inner part of the foundation pit, and a cross rod (9011) is connected between the supporting plate (902) and the supporting rod (402).

7. An excavation supporting apparatus as claimed in claim 6, wherein: a waist beam (10) is arranged on one side, facing the side wall of the foundation pit, of the supporting beam (901), a hook (9012) is fixedly connected to one side, facing the side wall of the foundation pit, of the supporting beam (901), and the waist beam (10) is placed on the hook (9012).