CN216075147U

CN216075147U - Foundation pit supporting device

Info

Publication number: CN216075147U
Application number: CN202122118627.5U
Authority: CN
Inventors: 汪裕洋
Original assignee: Wuhan Zhongke Geotechnical Engineering Co ltd
Current assignee: Wuhan Zhongke Geotechnical Engineering Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-18
Anticipated expiration: 2031-09-03

Abstract

The application relates to a foundation pit supporting device, in particular to the field of foundation pit construction technology, a plurality of cast-in-situ bored piles are vertically arranged around a foundation pit, I-shaped steel is vertically pre-buried in the cast-in-situ bored piles, one end of the I-shaped steel extends to the top of the cast-in-situ bored pile and comprises a plurality of support columns vertically inserted into the bottom surface of the foundation pit, the peripheral sides of the supporting columns are abutted against the inner side wall of the foundation pit, a fixing plate is arranged between every two adjacent supporting columns, one end of the fixing plate is movably inserted into the bottom wall of the foundation pit, anchor rods with one ends penetrating to the inner side wall of the foundation pit are pre-buried in the plurality of cast-in-situ bored piles, inserting rings are arranged at the other ends of the plurality of anchor rods, the axial direction of the insert ring is vertically arranged, the surface of the fixed plate, which is close to the cast-in-situ bored pile, is provided with a plug connector, and the plug connector is movably inserted in the insert ring. This application has the effect of the convenient dismantlement of realizing excavation supporting device.

Description

Foundation pit supporting device

Technical Field

The application relates to the field of foundation pit construction technology, in particular to a foundation pit supporting device.

Background

The foundation pit engineering mainly comprises design and construction of a foundation pit supporting system and earth excavation, and is a system engineering with strong comprehensiveness. 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. Without a reliable supporting system, the excavation of the foundation pit inevitably affects adjacent buildings or structures, and even causes accidents such as surface collapse and structure collapse in severe cases.

The utility model provides a chinese patent that patent application number is 201922154602.3 discloses a supporting construction of foundation ditch, includes vertical support plate, fixture block and transversely consolidates the strip, transversely consolidate the strip and be close to vertical support plate's side offer with the draw-in groove of fixture block adaptation, fixture block upper surface, lower surface all offer flutedly, still include the bolt, threaded groove has been seted up on the fixture block, transversely consolidate and set up the screw thread through-hole of arranging with the screw thread groove correspondence on the strip, the bolt runs through the screw thread through-hole and assembles in screw thread groove department.

To the correlation technique among the above-mentioned, pass horizontal reinforcement strip threaded connection to vertical support plate in the fixture block, realize being connected of horizontal reinforcement strip and vertical support column with the bolt, the inventor thinks because the excavation supporting device belongs to the engineering of building up temporarily, need dismantle after the construction is accomplished, twist many bolts down one by one and take out when dismantling, demolish horizontal reinforcement strip and vertical support plate afterwards, the split process is loaded down with trivial details inconvenient, so remain the improvement.

SUMMERY OF THE UTILITY MODEL

In order to realize the convenient dismantlement of excavation supporting device, 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, the vertical many bored concrete piles that are provided with around the foundation ditch, many vertical pre-buried I-steel that has in the bored concrete pile, just the one end of I-steel extend in the top of bored concrete pile, including many vertical support columns of pegging graft in the foundation ditch bottom surface, just week side butt of support column in on the inside wall of foundation ditch, adjacent two all be provided with the fixed plate between the support column, the one end activity of fixed plate is pegged graft in the foundation ditch diapire, many all pre-buried one end has worn the stock to the foundation ditch inside wall in the bored concrete pile, and is a plurality of the other end of stock all is provided with inserts the ring, the axis direction of inserting the ring is vertical setting, the fixed plate is close to the surface of bored concrete pile is provided with the plug connector, the plug connector activity peg graft in insert the ring.

Through adopting above-mentioned technical scheme, fixed plate and support column, the fixed plate is connected with the mode of all utilizing grafting between the ring, when needing to dismantle supporting device, the fixed plate is taken out from down to up, can realize taking the plug connector on the fixed plate out insert the ring and take the effect of support column out with fixed plate self in step, extract the foundation ditch bottom surface with the support column afterwards and can accomplish the dismantlement of whole supporting device, compare in revolving soon twisting the bolt, and take out bolt and various spare parts, it is more convenient to extract the mode of dismantling, can effectively improve the convenient degree of dismantlement of foundation ditch supporting device.

Optionally, at least two slots are formed in the circumferential sides of the supporting columns in a penetrating manner in the vertical direction, the slots on two adjacent supporting columns are arranged oppositely, and the fixing plate is vertically inserted into the two opposite slots of the two adjacent supporting columns.

Through adopting above-mentioned technical scheme, insert the slot with the one end of fixed plate from the top of support column in, until the fixed plate inserts in the foundation ditch diapire to this realizes the location to the fixed plate, and the installation of fixed plate is simpler.

Optionally, the fixing plate includes a plurality of mounting plates connected in sequence, and a connecting member is disposed between two adjacent mounting plates.

Through adopting above-mentioned technical scheme, because the mounting panel is all prefabricated fashioned, the area of every mounting panel is the same, the single mounting panel be difficult to with the distance adaptation between two adjacent support columns, the polylith mounting panel utilizes the connecting piece to connect to distance between two adjacent support columns of adaptation, simultaneously, the operation of single mounting panel is convenient for, the dismouting is more convenient.

Optionally, the connecting piece includes a positioning block, the positioning block is disposed on one side of the mounting plate close to the other mounting plate, a groove adapted to the positioning block is disposed on one side of the other mounting plate opposite to the other mounting plate, and the positioning block is movably inserted into the groove.

Through adopting above-mentioned technical scheme, when connecting two adjacent mounting panels, peg graft in the recess of another mounting panel with the locating piece correspondence on a mounting panel, at this moment, locating piece and recess chucking each other to this realizes the connection of two adjacent fixed plates.

Optionally, the plug connector comprises a right-angle plate, one end of the right-angle plate is vertically arranged on the surface of the mounting plate, the right-angle surface of the right-angle plate faces the mounting plate, and the other end of the right-angle plate faces the bottom wall of the foundation pit and is movably inserted into the plug ring.

Through adopting above-mentioned technical scheme, the vertical insert ring that inserts of one end of right-angle board utilizes the rotation of inserting the ring and injecing the mounting panel top, and the installation of mounting panel is more stable, strengthens the stability of strutting to the foundation ditch lateral wall simultaneously.

Optionally, the right-angle plates are arranged in a plurality of numbers, the right-angle plates are arranged in the horizontal direction, and the right-angle plates correspond to the insert rings on the anchor rods one to one.

Through adopting above-mentioned technical scheme, a plurality of right-angle boards that the level was laid are pegged graft in the insert ring simultaneously, further strengthen the stability of being connected of fixed plate and foundation ditch lateral wall.

Optionally, one end of the supporting column is a tip, and the tip of the supporting column is inserted into the bottom wall of the foundation pit.

Through adopting above-mentioned technical scheme, during the installation support column, peg graft the pointed end of support column in the foundation ditch bottom surface, on the one hand the pointed end area is little, and is more laborsaving when inserting the foundation ditch bottom surface, on the other hand with pointed end insert completely in the foundation ditch bottom surface can, ensured that many support columns male degree of depth is unanimous for many support columns grafting stability reinforcing.

Optionally, a screw rod is arranged in the top end of the supporting column, a through hole is formed in the top end of the i-beam, one end, far away from the supporting column, of the screw rod penetrates through the through hole, a nut is connected to one end, penetrating out of the through hole, of the screw rod in a threaded mode, and the surface of the nut abuts against the surface of the i-beam.

Through adopting above-mentioned technical scheme, in order to make the support column can hug closely the foundation ditch lateral wall, pass the perforation with the screw rod at support column pointed end and insert in the pointed end of support column, then twist the nut soon and hug closely with the surface of I-steel to the surface of nut, thereby realize that support column and foundation ditch inside wall hug closely fixedly.

Optionally, a hanging ring is arranged on the top surface of the mounting plate, and a hanging ring is arranged on the top surface of the supporting column.

Through adopting above-mentioned technical scheme, when utilizing the hoist to lift by crane the corresponding position of mounting panel in to the foundation ditch, rings on the fixed plate are as lifting point, conveniently lift by crane the fixed plate to realize the convenient installation of fixed plate. In a similar way, when the supporting column is installed, the hanging ring on the supporting column can also serve as a lifting point, and the construction difficulty is reduced due to the arrangement of the hanging ring and the hanging ring.

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

1. the mounting plate and the supporting columns, and the mounting plate and the inserting rings can be synchronously separated by drawing out the fixing plate from the bottom surface of the foundation pit, so that the convenience of dismounting the foundation pit supporting device is greatly improved;

2. the mounting plate is more stably mounted and has better supporting effect by inserting and fixing the plurality of right-angle plates and the inserting rings;

3. the installation quantity of the installation plates can be flexibly adjusted according to the size of the foundation pit, and the installation is convenient for workers.

Drawings

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

Fig. 2 is a schematic view of the explosive structure of the mounting plate in the embodiment of the present application.

Fig. 3 is a schematic sectional view taken along line a-a of fig. 1.

Fig. 4 is an enlarged schematic view of B in fig. 3.

Reference numerals: 1. drilling a cast-in-place pile; 12. i-shaped steel; 121. perforating; 13. an anchor rod; 14. inserting a ring; 2. a support pillar; 21. a slot; 22. a screw; 23. a nut; 24. hanging a ring; 3. a fixing plate; 31. a hoisting ring; 32. mounting a plate; 4. a connecting member; 41. positioning blocks; 42. a groove; 5. a plug-in unit; 51. a right-angle plate.

Detailed Description

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

The embodiment of the application discloses a foundation pit supporting device. Referring to fig. 1, the vertical drilling cast-in-place shaping all around of foundation ditch has many bored concrete piles 1, the degree of depth of many bored concrete piles 1 is dark in the degree of depth of foundation ditch, the top surface and the ground parallel and level of many bored concrete piles 1, before bored concrete pile 1 has not consolidated yet, it has a plurality of stock 13 of wearing to the foundation ditch inside wall to pre-embed to level in bored concrete pile 1, it has i-steel 12 still to vertically pre-embed in many bored concrete piles 1, the one end of i-steel 12 extends to the top of bored concrete pile 1, with stock 13, i-steel 12 makes stock 13 and i-steel 12 to be connected stably with 1 integrated into one piece of bored concrete pile, the wholeness is higher.

Referring to fig. 1, vertically in the foundation ditch be provided with many support columns 2, many support columns 2 equal interval distribution, many support columns 2 are the cylinder that one end is most advanced, and the most advanced of support column 2 is vertical pegs graft in the foundation ditch bottom surface, and outside the top portion of support column 2 stretched out the ground, the top of support column 2 still was provided with link 24, and the all sides butt of support column 2 was on the inside wall of foundation ditch. When the support columns 2 are installed, the hanging rings 24 are used as lifting points, the tips of the support columns 2 are downwards vertically inserted into the bottom wall of the foundation pit along the inner bottom wall of the foundation pit until the tip portions of the support columns 2 are all inserted into the bottom wall of the foundation pit, and the support columns 2 are arranged on the inner peripheral side of the foundation pit in a surrounding mode, so that the support columns 2 are installed.

Referring to fig. 1, a screw 22 is connected to the top end of the supporting column 2 through an internal thread, the screw 22 is arranged along the horizontal direction, one end, far away from the supporting column 2, of the screw 22 faces the i-beam 12, a through hole 121 is formed in the top end, extending out of the bored pile 1, of the i-beam 12, the direction of the through hole 121 is consistent with the axis direction of the screw 22, the through hole 121 is penetrated by one end, far away from the supporting column 2, of the screw 22, a nut 23 is connected to one end, penetrating out of the through hole 121, of the screw 22 through a threaded connection, and the surface of the nut 23 is attached to the surface of the i-beam 12. When the supporting column 2 is installed, firstly, the tip end of the supporting column 2 is inserted into the bottom wall of the foundation pit, the peripheral side of the supporting column 2 is abutted against the inner side wall of the foundation pit, the screw rod 22 penetrates through the through hole 121 and is screwed into the top end of the supporting column 2, and then the nut 23 is screwed until the surface of the nut 23 is abutted against the surface of the I-shaped steel 12, so that the peripheral side of the supporting column 2 is abutted against the inner side wall of the foundation pit, and the stability of the supporting column 2 is further enhanced.

Referring to fig. 2, a fixing plate 3 is vertically arranged between two adjacent supporting columns 2, the fixing plate 3 includes two mounting plates 32 (in other embodiments, the mounting plates 32 include three, four, and the like), the mounting plates 32 are rectangular plates, a hanging ring 31 is integrally fixed on the top ends of the mounting plates 32, and the two mounting plates 32 are abutted to each other. The mounting plates 32 are prefabricated, the area of each mounting plate 32 is the same, a single mounting plate 32 is difficult to adapt to the distance between two adjacent supporting columns 2, the arrangement of the mounting plates 32 is convenient for flexibly selecting the mounting number of the mounting plates 32 according to the distance between the adjacent supporting columns 2, and the mounting plates are suitable for various conditions.

Referring to fig. 2, a connecting member 4 is provided between the two mounting plates 32; the connecting piece 4 comprises a positioning block 41, the positioning block 41 is a rectangular block, the positioning block 41 is fixedly connected to one side of one mounting plate 32 close to the other mounting plate 32, a groove 42 matched with the positioning block 41 in an inserting mode is formed in one side, opposite to the other side, of the other fixing plate 3, and the positioning block 41 is movably inserted into the groove 42 in an inserting mode. The two mounting plates 32 are connected in an inserting mode, the installation is simple, the connection efficiency of the mounting plates 32 is effectively improved, the construction speed is further accelerated, and the time is saved.

Referring to fig. 3, two slots 21 have been seted up along vertical direction in the week side of support column 2, the slot 21 on two adjacent support columns 2 is laid relatively, and the groove width of slot 21 and the thickness looks adaptation of mounting panel 32, during the assembly mounting panel 32, utilize the hoist to lift by crane two good mounting panels 32 of connecting, and in the both ends of the good mounting panel 32 of will connecting from the vertical slot 21 that inserts in top of two adjacent support columns 2, because slot 21's restriction, mounting panel 32 is connected firmly between support column 2, with this installation stability who strengthens mounting panel 32.

Referring to fig. 3 and 4, the equal fixedly connected with of one end of a plurality of stock 13 inserts ring 14, the axis direction of inserting ring 14 is vertical setting, be provided with plug connector 5 on the surface of mounting panel 32 towards the foundation ditch inside wall, plug connector 5 includes two right angle boards 51, the one end of two right angle boards 51 all sets firmly on the surface of mounting panel 32 perpendicularly, two right angle boards 51 are the level and lay, and right angle face of right angle board 51 is towards fixed plate 3, the other end of right angle board 51 is towards the foundation ditch diapire, two right angle boards 51 are pegged graft with inserting ring 14 one-to-one on two stock 13 respectively. Insert from the top down along with two mounting panels 32, the vertical grafting of the right-angle plate 51 one end on the mounting panel 32 is in inserting ring 14, and the right-angle side of right-angle plate 51 is hugged closely in inserting ring 14 inner wall, effectively inject the rotation of mounting panel 32 in slot 21 through the grafting of right-angle plate 51 and inserting ring 14 for slot 21 lateral wall is hugged closely to the surface of mounting panel 32, strengthens the installation stability of mounting panel 32, when needs are dismantled, with the right-angle plate 51 of mounting panel 32 extract in inserting ring 14 can.

The implementation principle of the foundation pit supporting device in the embodiment of the application is as follows: when dismantling supporting device, extract two mounting panels 32 from the slot 21 in, realize simultaneously that right angle board 51 extracts from insert ring 14 in, can split mounting panel 32 and support column 2, unscrew nut 23 on the screw rod 22 afterwards, it is outer to twist screw rod 22 to screw rod 22 back out support column 2 afterwards soon, extract support column 2 and can accomplish the dismantlement of support column 2, compare in the dismantlement mode of twisting down many bolts and taking out one by one, effectively improve excavation supporting device's dismantlement convenience.

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 pit supporting device, the vertical many bored concrete piles (1) that are provided with around the foundation ditch, many vertical pre-buried I-steel (12) that have in bored concrete pile (1), just the one end of I-steel (12) extend in the top of bored concrete pile (1), its characterized in that: including many vertical support column (2) of pegging graft in the foundation ditch diapire, just all week side butt of support column (2) in on the inside wall of foundation ditch, adjacent two all be provided with between support column (2) fixed plate (3), the one end activity of fixed plate (3) is pegged graft in the foundation ditch diapire, many all pre-buried anchor rod (13) that have one end to wear to the foundation ditch inside wall in bored concrete pile (1), it is a plurality of the other end of anchor rod (13) all is provided with inserts ring (14), the axis direction of inserting ring (14) is vertical setting, fixed plate (3) are close to the surface of bored concrete pile (1) is provided with plug connector (5), plug connector (5) activity peg graft in insert ring (14).

2. An excavation supporting apparatus as claimed in claim 1, wherein: at least two slots (21) are formed in the circumferential sides of the supporting columns (2) in a penetrating mode in the vertical direction, the slots (21) in every two adjacent supporting columns (2) are arranged oppositely, and the fixing plate (3) is vertically inserted into the two opposite slots (21) in every two adjacent supporting columns (2).

3. An excavation supporting means as claimed in claim 2, wherein: the fixing plate (3) comprises a plurality of mounting plates (32) which are connected in sequence, and a connecting piece (4) is arranged between every two adjacent mounting plates (32).

4. An excavation supporting means as claimed in claim 3, wherein: the connecting piece (4) comprises a positioning block (41), the positioning block (41) is arranged on one side, close to the other mounting plate (32), of the mounting plate (32), a groove (42) matched with the positioning block (41) in an inserting mode is formed in one side, opposite to the other side, of the mounting plate (32), and the positioning block (41) is movably inserted into the groove (42).

5. An excavation supporting means as claimed in claim 3, wherein: plug connector (5) are including right-angle board (51), the one end of right-angle board (51) sets up perpendicularly on the surface of mounting panel (32), just the right angle face orientation of right-angle board (51) mounting panel (32), the other end of right-angle board (51) towards foundation ditch diapire and activity peg graft in insert in ring (14).

6. An excavation supporting means as claimed in claim 5, wherein: the number of the right-angle plates (51) is multiple, the right-angle plates (51) are arranged along the horizontal direction, and the right-angle plates (51) correspond to the insert rings (14) on the anchor rods (13) one by one.

7. An excavation supporting apparatus as claimed in claim 1, wherein: one end of the support column (2) is a tip, and the tip of the support column (2) is inserted into the bottom wall of the foundation pit.

8. An excavation supporting apparatus as claimed in claim 7, wherein: be provided with screw rod (22) in the top of support column (2), perforation (121) have been seted up on the top of I-steel (12), screw rod (22) are kept away from the one end of support column (2) is passed perforation (121), screw rod (22) are worn out one of perforation (121) is served threaded connection and is had nut (23), the surface butt of nut (23) in the surface of I-steel (12).

9. An excavation supporting means as claimed in claim 3, wherein: the top surface of the mounting plate (32) is provided with a hanging ring (31), and the top surface of the supporting column (2) is provided with a hanging ring (24).