CN111411631A

CN111411631A - Underground garage and construction method thereof

Info

Publication number: CN111411631A
Application number: CN202010309444.9A
Authority: CN
Inventors: 唐楠楠
Original assignee: Individual
Current assignee: Ni Haofei
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-07-14
Anticipated expiration: 2040-04-20
Also published as: CN111411631B

Abstract

The invention discloses an underground garage, which comprises a foundation pit, wherein a plurality of steel support piles are fixed at the edge of the foundation pit, a bottom plate is spliced at the bottom of the foundation pit through a plurality of steel plates, the steel plates positioned at the edge of the bottom plate are fixed on the steel support piles, a concrete layer is filled between the bottom plate and the bottom surface of the foundation pit, a top plate is fixed at the top of each steel support pile, a through groove is formed in each steel support pile, a plurality of first threaded holes are formed in the side wall of each through groove, a connecting block is installed in each through groove, connecting rods corresponding to the first threaded holes are movably inserted at two sides of each connecting block, second threaded holes corresponding to the first threaded holes are formed in each connecting block, a cone is arranged at the tail end, a groove is formed in a steel plate fixedly connected with the steel support piles, the groove and the through groove are located on the same plane, and a side plate is arranged between every two adjacent steel support piles. The invention can improve the defects of the prior art, improve the construction efficiency and reduce the construction cost.

Description

Underground garage and construction method thereof

Technical Field

The invention relates to the technical field of underground building construction, in particular to an underground garage and a construction method thereof.

Background

With the rapid increase of the quantity of motor vehicles in China, the problem of difficult parking is more prominent. The underground garage is a mode without occupying ground resources and becomes a mainstream parking place in cities. How to reduce the construction cost of the underground garage and improve the construction efficiency becomes a research hotspot in the field.

Disclosure of Invention

The invention aims to provide an underground garage and a construction method thereof, which can overcome the defects of the prior art, improve the construction efficiency and reduce the construction cost.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

An underground garage comprises a foundation pit, wherein a plurality of steel support piles are fixed at the edge of the foundation pit, a bottom plate is spliced at the bottom of the foundation pit through a plurality of steel plates, the steel plates positioned at the edge of the bottom plate are fixed on the steel support piles, a concrete layer is filled between the bottom plate and the bottom surface of the foundation pit, a top plate is fixed at the top of each steel support pile, a through groove is formed in each steel support pile, a plurality of first threaded holes are formed in the side wall of each through groove, a connecting block is installed in each through groove, connecting rods corresponding to the first threaded holes are movably inserted at two sides of each connecting block, second threaded holes corresponding to the first threaded holes are formed in each connecting block, a cone is arranged at the tail ends of the connecting rods, the cone is positioned in the second threaded holes, a fixing bolt penetrates through the first threaded holes and the second threaded holes and then is mutually extruded, the groove and the through groove are located on the same plane, a side plate is arranged between adjacent steel supporting piles and is inserted into the groove, blind holes are formed in two sides of the side plate, and the connecting rod is inserted into the blind holes in a matched mode.

Preferably, a rubber gasket is fixed at a contact end of the second threaded hole and the through groove, an annular groove is formed in the edge of the first threaded hole, and the inner diameter of the annular groove gradually decreases from one end far away from the first threaded hole to one end close to the first threaded hole.

Preferably, a plurality of metal elastic sheets are annularly distributed in the blind hole, the adjacent metal elastic sheets are partially overlapped, the surface of the connecting rod is covered with a rubber layer, and the metal elastic sheets are in interference fit with the rubber layer.

Preferably, the bottom surface of the groove is provided with a plurality of slots, the bottom surface of the side plate is fixed with plugs corresponding to the slots, and the tail ends of the plugs are positioned in the concrete layer.

Preferably, a rubber cushion block is fixed to the top of the side plate, a threaded sleeve is arranged in the rubber cushion block, and the top plate is connected with the threaded sleeve through an adjusting bolt.

The construction method of the underground garage comprises the following steps:

A. excavating a foundation pit, and installing steel support piles at the edge of the foundation pit;

B. splicing a bottom plate by using a steel plate, and fixedly welding the steel plate positioned at the edge of the bottom plate with the steel support piles;

C. presetting a connecting block in the through groove, and positioning the connecting block by using a fixing bolt to penetrate through the first threaded hole and the second threaded hole;

D. sequentially inserting the side plates into the grooves, and locking the fixing bolts by using 80% of preset torque;

E. welding a top plate on the top of the steel support pile;

F. pouring concrete between the bottom plate and the bottom surface of the foundation pit;

G. and after the concrete layer is dried and solidified, locking the fixing bolt to a preset torque.

Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the invention provides an underground garage with a steel structure. Through the combined use of steel fender pile and curb plate, the fender pile need not dismantled at the construction end, has reduced the construction step, has improved underground garage's support stability. The use of connecting block on the one hand is convenient for the installation of curb plate, and more importantly can cushion and offset the lateral extrusion force in the installation between the different curb plates. Concrete is injected into the bottom of the steel structure, so that the side plates and the bottom plate are in direct contact with the concrete layer, and the stability of the base of the whole steel structure is improved. In the locking process of the fixing bolt, the rubber gasket is tightly pressed with the annular groove, so that the stability of the connecting block and the steel support pile in the connecting process is improved, and the dislocation between the connecting block and the steel support pile is avoided. The interference fit of the metal elastic sheet and the rubber layer can reinforce the inserting state of the connecting rod, and meanwhile, a vertical reinforcing system is formed by the metal elastic sheet and the matching structure of the rubber gasket and the annular groove, so that the stability of a steel structure is further improved. The side plates are flexibly connected with the top plate through the rubber cushion blocks, so that the uniformity of the connection strength between the top plate and the side plates can be ensured in the concrete curing process.

Drawings

FIG. 1 is a block diagram of one embodiment of the present invention.

Fig. 2 is a structural view of a side panel mounting manner in an embodiment of the present invention.

Fig. 3 is a structural diagram of the plugging position of the connecting block and the through groove in one embodiment of the invention.

FIG. 4 is an axial cross-sectional view of a blind hole and a connecting rod at the insertion position according to an embodiment of the invention.

In the figure: 1. a foundation pit; 2. supporting piles by steel; 3. a steel plate; 4. a concrete layer; 5. a top plate; 6. a through groove; 7. a first threaded hole; 8. connecting blocks; 9. a connecting rod; 10. a cone; 11. fixing the bolt; 12. a groove; 13. a side plate; 14. blind holes; 15. a rubber gasket; 16. an annular groove; 17. a metal spring sheet; 18. a rubber layer; 19. a slot; 20. a plug; 21. a rubber cushion block; 22. a threaded sleeve; 23. adjusting the bolt; 24. a chute; 25. a slider; 26. a spring; 27. and a second threaded hole.

Detailed Description

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.

Referring to fig. 1-4, a specific embodiment of the invention includes a foundation pit 1, a plurality of steel support piles 2 are fixed at the edge of the foundation pit 1, a bottom plate is spliced at the bottom of the foundation pit 1 through a plurality of steel plates 3, the steel plates 3 positioned at the edge of the bottom plate are fixed on the steel support piles 2, a concrete layer 4 is filled between the bottom plate and the bottom surface of the foundation pit 1, a top plate 5 is fixed at the top of the steel support piles 2, a through groove 6 is formed in the steel support piles 2, a plurality of first threaded holes 7 are formed in the side wall of the through groove 6, a connecting block 8 is installed in the through groove 6, connecting rods 9 corresponding to the first threaded holes 7 are movably spliced at the two sides of the connecting block 8, second threaded holes 27 corresponding to the first threaded holes 7 are formed in the connecting block 8, a cone 10 is arranged at the tail end of the connecting rod 9, the top of the cone 10 is positioned in the second threaded holes, the connecting rod 9 is pushed outwards, a groove 12 is formed in the steel plate 3 fixedly connected with the steel support piles 2, the groove 12 and the through groove 6 are located on the same plane, a side plate 13 is arranged between the adjacent steel support piles 2, the side plate 13 is inserted into the groove 12, blind holes 14 are formed in two sides of the side plate 13, and the connecting rod 9 is matched with the blind holes 14 in an inserted mode. The rubber gasket 15 is fixed at the contact end of the second threaded hole 27 and the through groove 6, the annular groove 16 is arranged at the edge of the first threaded hole 7, and the inner diameter of the annular groove 16 is gradually reduced from one end far away from the first threaded hole 7 to one end close to the first threaded hole 7. A plurality of metal elastic sheets 17 are annularly arranged in the blind hole 14, the adjacent metal elastic sheets 17 are partially overlapped, a rubber layer 18 covers the surface of the connecting rod 9, and the metal elastic sheets 17 are in interference fit with the rubber layer 18. The bottom surface of the groove 12 is provided with a plurality of slots 19, the bottom surface of the side plate 13 is fixed with plugs 20 corresponding to the slots 19, and the tail ends of the plugs 20 are positioned in the concrete layer 4. The top of the side plate 13 is fixed with a rubber cushion block 21, a threaded sleeve 22 is arranged in the rubber cushion block 21, and the top plate 5 is connected with the threaded sleeve 22 through an adjusting bolt 23.

The inner wall of the blind hole 14 is provided with a sliding groove 24, a sliding block 25 is arranged in the sliding groove 24 in a sliding mode, a spring 26 is connected between the sliding block 25 and the sliding groove 24, and the metal elastic sheet 17 is fixed on the sliding block 25. The elastic coefficient of the metal elastic sheet 17 is smaller than that of the spring 26. Through the two-stage elastic buffering of the design spring 26 and the metal elastic sheet 17, the stress displacement of the connecting rod 9 with different amplitudes can be buffered, and the metal elastic sheet 17 is prevented from excessively deforming.

A. excavating a foundation pit 1, and installing steel support piles 2 at the edge of the foundation pit 1;

B. splicing a bottom plate by using a steel plate 3, and welding and fixing the steel plate 3 positioned at the edge of the bottom plate and the steel support piles 2;

C. a connecting block 8 is preset in the through groove 6, and a fixing bolt 11 penetrates through the first threaded hole 7 and the second threaded hole 27 to position the connecting block 8;

D. sequentially inserting the side plates 13 into the grooves 12, and locking the fixing bolts 11 by using 80% of preset torque;

E. welding a top plate 5 on the top of the steel support pile 2;

F. pouring concrete between the bottom plate and the bottom surface of the foundation pit 1; in the concrete curing process, the connection stress of the top plate 5 and the steel support piles 2 is monitored in real time, the tightness of the adjusting bolts 23 at corresponding positions is adjusted according to the detection result, and the uniformity of connection and fixation of the top plate 5 and different steel support piles 2 in the concrete curing process is ensured;

G. after the concrete layer 4 is dried and solidified, locking the fixing bolt 11 to a preset torque; when locking fixing bolt 11, carry out locking in turn to different connecting blocks 8, lock a connecting block 8 back promptly, the locking is not gone on to next connecting block 8 to an adjacent connecting block 8 in interval, to the fixing bolt 11 of difference on the same connecting block 8, the locking order is from the centre to both sides locking one by one. The locking mode can effectively reduce the torsional stress among the connecting blocks, the steel support piles and the side plates, and the stability of the whole steel structure is improved.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an underground garage, includes foundation ditch (1), its characterized in that: the edge of the foundation pit (1) is fixed with a plurality of steel support piles (2), the bottom of the foundation pit (1) is spliced with a bottom plate through a plurality of steel plates (3), the steel plates (3) positioned at the edge of the bottom plate are fixed on the steel support piles (2), a concrete layer (4) is filled between the bottom plate and the bottom surface of the foundation pit (1), the top of each steel support pile (2) is fixed with a top plate (5), a through groove (6) is formed in each steel support pile (2), a plurality of first threaded holes (7) are formed in the side wall of each through groove (6), a connecting block (8) is installed in each through groove (6), connecting rods (9) corresponding to the first threaded holes (7) are movably inserted into two sides of each connecting block (8), second threaded holes (27) corresponding to the first threaded holes (7) are formed in each connecting block (8), a cone (10) is arranged at the tail end of each connecting rod (9), and the top of each, fixing bolt (11) pass behind first screw hole (7) and second screw hole (27) and extrude each other with cone (10), outwards release connecting rod (9), be provided with recess (12) on steel sheet (3) with steel fender pile (2) fixed connection, recess (12) and logical groove (6) are located the coplanar, be provided with between adjacent steel fender pile (2) curb plate (13), curb plate (13) are pegged graft in recess (12), curb plate (13) both sides are provided with blind hole (14), connecting rod (9) and blind hole (14) cooperation of pegging graft.

2. The underground garage of claim 1, wherein: the rubber gasket (15) is fixed to the contact end of the second threaded hole (27) and the through groove (6), an annular groove (16) is formed in the edge of the first threaded hole (7), and the inner diameter of the annular groove (16) is gradually reduced from one end far away from the first threaded hole (7) to one end close to the first threaded hole (7).

3. The underground garage of claim 2, wherein: a plurality of metal elastic sheets (17) are annularly arranged in the blind hole (14), the adjacent metal elastic sheets (17) are partially overlapped, a rubber layer (18) covers the surface of the connecting rod (9), and the metal elastic sheets (17) are in interference fit with the rubber layer (18).

4. The underground garage of claim 3, wherein: the bottom surface of the groove (12) is provided with a plurality of slots (19), the bottom surface of the side plate (13) is fixed with plugs (20) corresponding to the slots (19), and the tail ends of the plugs (20) are positioned in the concrete layer (4).

5. The underground garage of claim 4, wherein: the top of the side plate (13) is fixed with a rubber cushion block (21), a threaded sleeve (22) is arranged in the rubber cushion block (21), and the top plate (5) is connected with the threaded sleeve (22) through an adjusting bolt (23).

6. A construction method of an underground garage according to any one of claims 1 to 5, characterized by comprising the following steps:

A. excavating a foundation pit (1), and installing steel support piles (2) at the edge of the foundation pit (1);

B. splicing a bottom plate by using a steel plate (3), and welding and fixing the steel plate (3) positioned at the edge of the bottom plate and the steel support piles (2);

C. a connecting block (8) is preset in the through groove (6), and a fixing bolt (11) penetrates through the first threaded hole (7) and the second threaded hole (27) to position the connecting block (8);

D. sequentially inserting the side plates (13) into the grooves (12), and locking the fixing bolts (11) by using 80% of preset torque;

E. welding a top plate (5) on the top of the steel support pile (2);

F. pouring concrete between the bottom plate and the bottom surface of the foundation pit (1);

G. and after the concrete layer (4) is dried and solidified, locking the fixing bolt (11) to a preset torque.