CN218204317U

CN218204317U - Underground continuous wall structure for foundation pit support

Info

Publication number: CN218204317U
Application number: CN202222448452.9U
Authority: CN
Inventors: 黄素兰
Original assignee: Huizhou Hongtai Construction Engineering Co ltd
Current assignee: Huizhou Hongtai Construction Engineering Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-01-03
Anticipated expiration: 2032-09-16

Abstract

The utility model relates to an underground continuous wall structure for excavation supporting, including the continuous wall body of two relative settings, be provided with bearing structure between two continuous wall bodies, bearing structure includes the butt in the backup pad of continuous wall body and sets up the fixed subassembly between the backup pad, fixed subassembly can slide and install to the backup pad, fixed subassembly includes the dead lever and sets up respectively in the gusset plate at dead lever both ends, the gusset plate is connected with one side that the backup pad deviates from the continuous wall body, be provided with the locking subassembly between gusset plate and the backup pad, the dead lever includes two sleeve pipes of being connected with two gusset plates respectively and wears to locate the screw rod between two sleeve pipes, the sheathed tube inner wall be provided with screw rod outer wall matched with screw thread. This application plays the effect of support to the diaphragm wall body, appears the phenomenon of collapsing easily when avoiding the deep trouth excavation of diaphragm wall body as far as possible.

Description

Underground continuous wall structure for foundation pit support

Technical Field

The application relates to the technical field of foundation pit engineering, in particular to an underground continuous wall structure for foundation pit supporting.

Background

The foundation pit support is a retaining, 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. The underground continuous wall has the characteristics of high structural rigidity, integrity, impermeability and durability, and can be used as a permanent soil-retaining and water-retaining and load-bearing structure; the method can adapt to various complex construction environments and hydrogeological conditions, can be constructed close to the existing buildings, has no noise and vibration basically during construction, and has small influence on adjacent buildings and underground pipelines.

The underground continuous wall in the related technology is that foundation engineering adopts a trenching machine on the ground, a long and narrow deep groove is excavated along the peripheral axis of the deep excavation engineering under the condition of slurry wall protection, a reinforcement cage is hoisted in the groove after the groove is cleaned, then underwater concrete is poured by a conduit method to form a unit groove section, and the steps are carried out section by section, so that a continuous reinforced concrete wall is built underground to be used as a structure for intercepting water, preventing seepage, bearing and retaining water.

However, when the deep trench of the diaphragm wall is excavated, the soil close to the ground surface is unstable, and the slurry does not play a good role of wall protection during the excavation process, which easily causes the phenomenon of collapse during the excavation.

SUMMERY OF THE UTILITY MODEL

In order to improve the phenomenon that the deep slot of underground continuous wall appears collapsing easily when excavating among the relevant art, this application provides an underground continuous wall structure for excavation supporting.

The application provides an underground continuous wall structure for excavation supporting adopts following technical scheme:

the utility model provides an underground continuous wall structure for excavation supporting, includes two relative continuous wall bodies that set up, two be provided with bearing structure between the continuous wall body, bearing structure include the butt in the backup pad of continuous wall body and set up in fixed subassembly between the backup pad, fixed subassembly can slide the installation extremely in the backup pad, fixed subassembly include the dead lever and set up respectively in the gusset plate at dead lever both ends, the gusset plate with the backup pad deviates from one side of continuous wall body is connected, the gusset plate with be provided with the locking subassembly between the backup pad, the dead lever include two respectively with two the sleeve pipe that the gusset plate is connected and wear to locate two screw rod between the sleeve pipe, the sheathed tube inner wall be provided with screw rod outer wall matched with screw thread.

Through adopting above-mentioned technical scheme, with two backup pads butt between two diaphragm wall bodies to slide the installation to the backup pad of fixing component, make gusset plate and backup pad carry out fixed connection through locking the subassembly, the distance of two backup pads is adjusted through rotating the screw rod, and the screw rod cooperatees with the screw thread in the cover pipe, thereby makes the backup pad support tightly in the diaphragm wall body, makes the distance between two backup pads fixed. Make the backup pad support tight diaphragm wall body through setting up backup pad and fixed subassembly for the structure of diaphragm wall body is more stable, appears the phenomenon of collapsing easily when having avoided the deep trouth excavation of diaphragm wall body as far as possible.

Preferably, both ends of the screw rod are respectively sleeved with a screwing nut, and the screwing nuts are located on one side, close to the sleeve, of the screw rod.

Through adopting above-mentioned technical scheme, after screw rod and sheathed tube position adjustment, will screw the nut and screw, consolidate the screw rod to play better supporting role.

Preferably, the supporting plate is provided with a sliding groove, the sliding groove is formed along the length direction of the supporting plate, one side, away from the sleeve, of the reinforcing plate is provided with a sliding block which is used for being connected with the sliding groove in a sliding mode, and the sliding block can slide along the length direction of the sliding groove.

Through adopting above-mentioned technical scheme, the gusset plate passes through the slider and is connected with sliding of spout and install to the backup pad to can adjust the position of gusset plate, with the different support needs of adaptation, still can increase the quantity of fixed subassembly according to actual demand.

Preferably, the locking assembly includes a plurality of positioning holes provided in the sliding groove, alignment holes provided in the reinforcing plate, and bolts inserted between the positioning holes and the alignment holes, and the plurality of positioning holes are provided along the length direction of the sliding groove.

Through adopting above-mentioned technical scheme, pass through the bolt fastening between gusset plate and the backup pad, the bolt passes between counterpoint hole and the locating hole for the position of gusset plate in the backup pad is fixed, can not shift easily, and is fixed with the support position of gusset plate and screw rod.

Preferably, one side of the support plate, which is far away from the continuous wall body, is provided with a reinforcing plate, one side of the reinforcing plate is connected with the support plate, and the other side of the reinforcing plate is provided with a reinforcing rib fixedly connected with the ground.

Through adopting above-mentioned technical scheme, the backup pad can be strengthened to the reinforcing plate to the supporting role of continuous wall body, and plays spacing effect to the backup pad for the backup pad supports more firmly.

Preferably, set up the groove that slides that is vertical setting in the backup pad, the reinforcing plate orientation one side in groove that slides is provided with be used for with the groove that slides the sliding block of being connected, the reinforcing plate can be followed the length direction in groove that slides.

Through adopting above-mentioned technical scheme, the reinforcing plate can slidable mounting to the backup pad on, also can follow the backup pad and slide disassembly, and the cooperation of sliding of groove and sliding block that slides has made things convenient for the installation and the dismantlement of reinforcing plate.

Preferably, a plurality of through holes are formed in the sliding groove, an opening is formed in the position, corresponding to the through hole, of the sliding block, and a bolt penetrates through the through hole and the opening.

Through adopting above-mentioned technical scheme, fix through the bolt between reinforcing plate and the backup pad, insert the bolt and locate between perforation and the trompil to realize that the connection between reinforcing plate and the backup pad is fixed.

Preferably, the edges of two sides of the supporting plate are provided with connecting grooves, the connecting grooves are formed along the height direction of the supporting plate, a connecting block is arranged between every two adjacent supporting plates, and two ends of the connecting block are respectively inserted into the connecting grooves between every two adjacent supporting plates.

Through adopting above-mentioned technical scheme, when connecting with two backup pads of same side, through inserting the connecting block respectively in the spread groove of locating two backup pads to realize the concatenation of two backup pads.

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

1. with two backup pad butt between two diaphragm wall bodies to with the installation of fixed subassembly slip to the backup pad, wear to establish through the bolt and make gusset plate and backup pad carry out fixed connection between counterpoint hole and the locating hole, the distance of two backup pads is adjusted through rotating the screw rod, screw rod and the screw thread in the cover pipe to the cooperation, thereby make the backup pad support tightly in the diaphragm wall body, make the distance between two backup pads fixed. The supporting plate is tightly abutted against the continuous wall body through the supporting plate and the fixing rod, so that the structure of the continuous wall body is more stable, and the phenomenon that the continuous wall body is easy to collapse when a deep groove is excavated is avoided as much as possible;

2. the setting up of reinforcing plate has strengthened the backup pad to the support nature of continuous wall body, and carries on spacingly to the backup pad, strengthens the structural strength of backup pad.

Drawings

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

FIG. 2 is a schematic view, partly in section, of an embodiment of the present application;

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

FIG. 4 is a cross-sectional structural schematic of an embodiment of the present application;

fig. 5 is a schematic view of the assembly relationship of two support plates.

In the figure, 1, a continuous wall body; 2. a support plate; 21. a chute; 211. positioning holes; 22. a sliding groove; 221. perforating; 23. connecting grooves; 3. fixing the rod; 31. a sleeve; 311. a thread; 32. a screw; 33. screwing the nut; 4. a reinforcing plate; 41. a slider; 42. aligning holes; 5. a bolt; 6. a reinforcing plate; 61. a sliding block; 611. opening a hole; 62. reinforcing ribs; 7. a bolt; 8. and (4) connecting the blocks.

Detailed Description

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

An underground continuous wall structure for foundation pit supporting, refer to fig. 1 and 2, includes two parallel arrangement's continuous wall body 1 and sets up the bearing structure between two continuous wall bodies 1. Two continuous wall bodies 1 set up relatively, and bearing structure includes two respectively the butt in two backup pads 2 of the continuous wall body 1 that set up relatively and set up the fixed subassembly between backup pad 2, and two backup pads 2 respectively the butt in one side that two continuous wall bodies 1 moved towards each other.

Referring to fig. 1 and 2, the sliding groove 21 has been seted up to one side that backup pad 2 deviates from continuous wall body 1, and the length direction setting of backup pad 2 is followed to sliding groove 21, and sliding groove 21 is the dovetail setting, and sliding groove 21 is located one side that backup pad 2 is close to the upper end. The fixed subassembly includes dead lever 3 and sets up respectively in the gusset plate 4 at 3 both ends of dead lever, and one side that gusset plate 4 deviates from dead lever 3 is provided with the slider 41 of being connected with sliding chute 21 slides, and slider 41's cross-section is the dovetail setting, and with sliding chute 21's shape looks adaptation, through sliding slider 41 to sliding chute 21 in to the position of the fixed subassembly of adjustment.

Referring to fig. 2 and 3, a locking assembly is disposed between the sliding chute 21 and the reinforcing plate 4, and the locking assembly includes a plurality of positioning holes 211 formed in the sliding chute 21, alignment holes 42 formed in the reinforcing plate 4, and bolts 5 inserted into the positioning holes 211 and the alignment holes 42. A plurality of locating holes 211 are seted up along the length direction of spout 21, and counterpoint hole 42 is seted up in the reinforcing plate 4 and is kept away from the one side of slider 41, and counterpoint hole 42 sets up with locating hole 211 relatively. In this embodiment, there are two alignment holes 42 on the reinforcing plate 4, the two alignment holes 42 are respectively located on two sides of the fixing plate opposite to the slider 41, and the alignment holes 42 and the positioning holes 211 have the same shape and size. When the sliding block 41 slides into the sliding groove 21 and the position is adjusted, the bolt 5 is inserted into the alignment hole 42 and the positioning hole 211, so that the sliding block 41 is locked in the sliding groove 21, and the position of the fixing rod 3 is fixed. In this embodiment, the fixing components may have multiple sets, and the multiple sets of fixing components are all distributed along the direction of the support plate 2 through the sliding fit of the sliding block 41 and the sliding groove 21, and are connected through the alignment of the alignment hole 42 and the positioning hole 211, so that the relative independence between the two adjacent fixing components is realized.

Referring to fig. 1 and 2, the fixing rod 3 includes two sleeves 31 and a screw 32 penetrating between the two sleeves 31, wherein one ends of the two sleeves 31, which are far away from each other, are respectively connected to one side of the reinforcing plate 4, which is far away from the slider 41, and two ends of the screw 32 are respectively penetrating through the two sleeves 31 from one ends of the two sleeves 31, which are close to each other. The inner walls of the two sleeves 31 are provided with threads 311 matched with the outer walls of the screws 32, both ends of each screw 32 are provided with screwing nuts 33, and the two screwing nuts 33 are respectively positioned on one sides of the two screws 32 close to the two sleeves 31. The two support plates 2 are abutted between the two continuous wall bodies 1, the sliding blocks 41 at the two ends of the fixing rod 3 are slid to the designated positions of the sliding grooves 21, the bolts 5 penetrate through the alignment holes 42 and the positioning holes 211 to be fixed, the screw rod 32 is rotated to adjust the distance between the two support plates 2, the support plates 2 are abutted against the continuous wall bodies 1, and then the two screwing nuts 33 are screwed to reinforce the screw rod 32, so that the distance between the two support plates 2 is fixed.

Referring to fig. 2 and 4, one side that backup pad 2 faced each other is provided with polylith reinforcing plate 6, and polylith reinforcing plate 6 is located backup pad 2 one side that is close to ground, polylith reinforcing plate 6 along backup pad 2's length direction evenly distributed. The cross-section of reinforcing plate 6 is right triangle-shaped and sets up, and reinforcing plate 6 is used for the backup pad 2 and is fixed with being connected between the ground. Seted up a plurality ofly on backup pad 2 and be vertical groove 22 that slides, a plurality of grooves 22 that slide along backup pad 2's length direction evenly distributed, reinforcing plate 6 slides towards one side of groove 22 and is provided with sliding block 61, and sliding block 61 can follow vertical direction and slide to sliding groove 22 in to make reinforcing plate 6 slide to butt in ground along sliding groove 22's length direction. Through the mode of reinforcing plate 6 slidable mounting, the dismantlement and the installation of reinforcing plate 6 have been made things convenient for.

Referring to fig. 4, the sliding groove 22 is provided with a plurality of through holes 221, the through holes 221 are uniformly distributed along the length direction of the sliding groove 22, the sliding block 61 is provided with an opening 611 at a position corresponding to the through holes 221, a bolt 7 is inserted between the opening 611 and the through holes 221, and the bolt 7 is inserted in the opening 611 and the through holes 221, so that the reinforcing plate 6 and the support plate 2 are fixedly connected.

Referring to fig. 4, one side of the reinforcing plate 6 close to the ground is provided with a plurality of reinforcing ribs 62, one ends of the reinforcing ribs 62 far away from the reinforcing plate 6 penetrate through the ground, and the reinforcing ribs 62 realize the fixed connection between the reinforcing plate 6 and the ground.

Referring to fig. 5, the support plates 2 on the same side can be linearly spliced along the length direction of the continuous wall body 1. Wherein, spread groove 23 has all been seted up at the both sides edge of backup pad 2, and spread groove 23 sets up along the direction of height of backup pad 2, and spread groove 23 is the T type setting, and the spread groove 23 of two adjacent backup pads 2 sets up relatively. Be provided with connecting block 8 between the spread groove 23 of two adjacent backup pads 2 and realize fixing, the cross-section of connecting block 8 is the I shape setting, through with connecting block 8 from last to inserting between the spread groove 23 of two adjacent backup pads 2 to realize the sharp concatenation of two backup pads 2. In this embodiment, the installation method between two backup pads 2 can also be earlier fixed the back with the spread groove 23 of one of them backup pad 2 from last to down with connecting block 8 from last, with another backup pad 2 to realize the straight line concatenation of two backup pads 2.

The implementation principle of the embodiment of the application is as follows: with two backup pad 2 butt between two continuous wall bodies 1, and with the fixed subassembly installation to backup pad 2 on sliding, wear to establish through bolt 5 and make gusset plate 4 and backup pad 2 carry out fixed connection between counterpoint hole 42 and locating hole 211, the distance of two backup pad 2 is adjusted through rotating screw rod 32, screw rod 32 and the interior screw thread 311 of sleeve pipe 31 to the cooperation, thereby make backup pad 2 support tightly in continuous wall body 1, make the distance between two backup pad 2 fixed. Make backup pad 2 support tight diaphragm wall body 1 through setting up backup pad 2 and dead lever 3 for diaphragm wall body 1's structure is more stable, appears the phenomenon of collapsing easily when having avoided diaphragm wall body 1's deep trouth excavation as far as possible.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: 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 an underground continuous wall structure for excavation supporting, includes two relative continuous wall bodies (1) that set up, its characterized in that, two be provided with bearing structure between continuous wall body (1), bearing structure include the butt in backup pad (2) of continuous wall body (1) and set up in fixed subassembly between backup pad (2), fixed subassembly can slide the installation extremely on backup pad (2), fixed subassembly include dead lever (3) and set up respectively in gusset plate (4) at dead lever (3) both ends, gusset plate (4) with backup pad (2) deviate from one side of continuous wall body (1) is connected, gusset plate (4) with be provided with locking Assembly between backup pad (2), dead lever (3) include two respectively with two sleeve pipe (31) that gusset plate (4) are connected and wear to locate two screw rod (32) between sleeve pipe (31), the inner wall of sleeve pipe (31) be provided with screw rod (32) outer wall matched with screw rod (311).

2. An underground continuous wall structure for foundation pit support according to claim 1, characterized in that both ends of the screw rod (32) are sleeved with screwing nuts (33), and the screwing nuts (33) are positioned on one side of the screw rod (32) close to the sleeve (31).

3. The underground continuous wall structure for foundation pit support according to claim 1, wherein a sliding groove (21) is formed in the support plate (2), the sliding groove (21) is formed in the length direction of the support plate (2), a sliding block (41) for sliding connection with the sliding groove (21) is arranged on one side, away from the sleeve (31), of the reinforcing plate (4), and the sliding block (41) can slide in the length direction of the sliding groove (21).

4. An underground diaphragm wall structure for supporting a foundation pit according to claim 3, wherein the locking assembly comprises a plurality of positioning holes (211) formed on the sliding chute (21), a positioning hole (42) formed on the reinforcing plate (4), and a bolt (5) inserted between the positioning holes (211) and the positioning hole (42), and the plurality of positioning holes (211) are arranged along the length direction of the sliding chute (21).

5. An underground continuous wall structure for foundation pit supporting according to claim 1, characterized in that, a reinforcing plate (6) is arranged on one side of the supporting plate (2) departing from the continuous wall body (1), one side of the reinforcing plate (6) is connected with the supporting plate (2), and the other side of the reinforcing plate (6) is provided with a reinforcing rib (62) fixedly connected with the ground.

6. The underground continuous wall structure for foundation pit support according to claim 5, wherein the support plate (2) is provided with a vertically arranged sliding groove (22), one side of the reinforcing plate (6) facing the sliding groove (22) is provided with a sliding block (61) connected with the sliding groove (22) in a sliding manner, and the reinforcing plate (6) can slide along the length direction of the sliding groove (22).

7. An underground continuous wall structure for foundation pit support according to claim 6, wherein the sliding groove (22) is provided with a plurality of through holes (221), the sliding block (61) is provided with an opening (611) at a position corresponding to the through holes (221), and a bolt (7) is arranged between the through holes (221) and the opening (611).

8. The underground continuous wall structure for foundation pit support according to claim 1, wherein the two side edges of the supporting plates (2) are both provided with connecting grooves (23), the connecting grooves (23) are arranged along the height direction of the supporting plates (2), a connecting block (8) is arranged between two adjacent supporting plates (2), and two ends of the connecting block (8) are respectively inserted into the connecting grooves (23) between two adjacent supporting plates (2).