CN114737572A - Supporting structure of horizontal steel support in deep foundation pit assembly type section steel supporting system - Google Patents

Abstract

The utility model relates to a bearing structure that horizontal steel supported in deep basal pit assembled shaped steel braced system is used in deep basal pit support field, and it includes lattice column and horizontal steel, is equipped with the backup pad between lattice column and the horizontal steel, has seted up first fixed slot on the lateral wall of backup pad, sets up the second fixed slot corresponding with first fixed slot on the lateral wall of horizontal steel, and it has the fixed block to peg graft in first fixed slot and second fixed slot, relative division is equipped with two first extension grooves on the cell wall of first fixed slot, and relative division is equipped with two second extension grooves on the cell wall of second fixed slot, still is equipped with a plurality of extension pieces on the fixed block respectively, and a plurality of extension pieces correspond respectively and peg graft in two first extension grooves and two second extension grooves. The application has the technical effects that: the possibility of transverse displacement of the horizontal steel under the action of soil pressure is reduced, and the connection strength between the horizontal steel and the lattice column is enhanced.

Description

Supporting structure of horizontal steel support in deep foundation pit assembly type section steel supporting system

Technical Field

The application relates to the technical field of foundation pit support, in particular to a supporting structure of a horizontal steel support in a deep foundation pit assembly type steel supporting system.

Background

The deep foundation pit refers to an engineering with the excavation depth of more than five meters or the excavation depth of less than five meters, but particularly complex geological conditions, surrounding environment and underground pipelines; the foundation pit engineering mainly comprises foundation pit supporting system design and construction and earthwork excavation, and is a system engineering with strong comprehensiveness; the foundation pit supporting system is a temporary structure and is not needed after the construction of underground engineering is finished.

In a foundation pit supporting system, a profile steel supporting system is widely applied due to the advantages of convenience in construction, no need of maintenance, short construction period, low supporting cost, reusability of materials and the like. The horizontal steel supports in the section steel support system and the lattice columns supported at the bottoms of the horizontal steel supports are usually fixedly connected with each other by welding or bolt connection.

The technical scheme has the following defects: after the latticed column and the horizontal steel are built and installed, the soil body on the periphery of the foundation pit can generate soil pressure along the axial direction of the horizontal steel for the horizontal steel, and the mode that the horizontal steel and the latticed column are simply welded or connected through bolts in the related technology is poor in connection strength, so that the horizontal steel can easily generate transverse displacement relative to the latticed column under the action of the soil pressure, and further the connection between the horizontal steel and the latticed column is broken, and potential safety hazards are caused.

Disclosure of Invention

In order to improve the relatively poor problem of joint strength between horizontal steel and the lattice column, the application provides a bearing structure that horizontal steel supported in deep basal pit assembled shaped steel braced system adopts following technical scheme: a supporting structure of a horizontal steel support in a deep foundation pit assembly type steel supporting system comprises lattice columns and horizontal steel, a supporting plate is arranged between the lattice column and the horizontal steel, a first fixing groove is arranged on the side wall of the supporting plate, a second fixing groove corresponding to the first fixing groove is formed in the side wall of the horizontal steel, fixing blocks are inserted into the first fixing groove and the second fixing groove, the outer edge of the fixed block is contacted with the groove walls of the first fixed groove and the second fixed groove, two first extending grooves are oppositely arranged on the groove wall of the first fixed groove, two second extending grooves are oppositely arranged on the groove wall of the second fixing groove, a plurality of extending blocks are respectively arranged on the fixing block, the extending blocks are respectively correspondingly inserted in the two first extending grooves and the two second extending grooves, and the outer edges of the plurality of extension blocks are respectively contacted with the groove walls of the two first extension grooves and the two second extension grooves.

Through the technical scheme, when the horizontal steel generates a trend of lateral displacement relative to the lattice column under the action of soil pressure, the fixing block can limit the position of the horizontal steel and offset the displacement trend of the horizontal steel; the arrangement of the plurality of extension plates has the effect of strengthening the connection strength between the fixing block and the horizontal steel as well as the lattice column, so that the pressure applied to the fixing block by the horizontal steel can be uniformly dispersed to the horizontal steel and the support plate through the plurality of extension blocks, the fixing block can stably limit the position of the horizontal steel, the possibility of transverse displacement of the horizontal steel under the action of soil pressure is reduced, and the connection strength between the horizontal steel and the lattice column is strengthened; simultaneously, the mode that the staff accessible was taken the fixed block from first fixed slot in, lift the fixed block and extend the piece from the supporting seat off to after the excavation supporting, the staff can retrieve the reuse to the fixed block.

Optionally, a plurality of steel connecting rods are arranged on the fixing block, two connecting grooves matched with the connecting rods are respectively formed in the plurality of extending blocks, and the plurality of connecting rods are correspondingly inserted into the plurality of connecting grooves respectively.

Through the technical scheme, the connecting rod is inserted into the connecting groove to strengthen the connecting strength between the fixing block and the extension plate, and the possibility that the extension rod is bent and deformed relative to the fixing block under the action of external force is reduced, so that the limiting effect of the fixing block on horizontal steel is further strengthened; simultaneously, after the staff lifted off the fixed block, the accessible was lifted off the extension piece with the mode that the spliced pole was extracted from the spread groove to the staff can accomodate or change the extension piece.

Optionally, an annular guide groove is formed in a notch of the connecting groove, and a magnetic block is further arranged in the connecting groove; when the connecting rod is correspondingly inserted into the connecting groove, the magnetic block and the connecting rod are mutually abutted and adsorbed.

Through the technical scheme, under the magnetic force effect of magnetic path, the connecting rod can be closely adsorbed and be difficult to break away from in the spread groove to reached and carried out the effect fixed to the position of extending the piece, reduced the staff when installing the fixed block, extend the piece and lead to the inconvenient possibility of fixed block installation with the fixed block separation under the effect of external force, so that the staff can be convenient install the fixed block.

Optionally, a limiting hole is formed in the horizontal steel along the vertical direction, a limiting bolt penetrates through the limiting hole, a thread groove matched with the limiting bolt is formed in the fixing block, and the limiting bolt is connected in the thread groove in a threaded manner.

Through above-mentioned technical scheme, under the restriction of spacing bolt, the fixed block is difficult to remove for the backup pad under the effect of external force, has reduced the fixed block and has broken away from the possibility that drops from the backup pad under the effect of external force to the joint strength between fixed block and the backup pad has been strengthened.

Optionally, a rotation blocking column coaxial with the thread groove is arranged in the thread groove, a rubber sleeve is arranged on the outer edge of the rotation blocking column, a rotation blocking groove matched with the rotation blocking column is formed in the end face, facing the rotation blocking column, of the limiting bolt, the rotation blocking column is correspondingly inserted into the rotation blocking groove, and the rubber sleeve abuts against the wall of the rotation blocking groove.

Through above-mentioned technical scheme, the setting that hinders rotary column and rubber sleeve has increased spacing bolt's rotation resistance, has reduced the not hard up possibility of spacing bolt under the effect of external force to strengthen the firm in connection degree between spacing bolt and the fixed block, so that spacing bolt can be stable for a long time carry on spacingly to the fixed block.

Optionally, an annular groove is formed in the end face, facing the fixed block, of the end of the limiting bolt, a rubber ring partially extending out of the annular groove is arranged in the annular groove, and the rubber ring abuts against the horizontal steel.

Through above-mentioned technical scheme, the rubber ring has the effect sealed with the connecting gap between spacing bolt and the fixed block, has strengthened spacing bolt's waterproof performance, has reduced the wet water corrosion of spacing bolt and has been difficult to follow the possibility of unloading down in the fixed block to the staff can be in strut convenient dismantlement spacing bolt and fixed block after finishing.

Optionally, a plurality of positioning rods are arranged on the horizontal steel, and a plurality of positioning grooves matched with the positioning rods are correspondingly formed in the supporting plate; when a plurality of locating levers correspond respectively and peg graft in a plurality of constant head tanks, first fixed slot and second fixed slot align along vertical direction.

Through above-mentioned technical scheme, the setting of locating lever and constant head tank has the effect of instructing the location to in the time of the staff erects the installation to the horizontal steel, the accessible corresponds the mode of pegging graft in the constant head tank with the reference column, aligns first fixed slot and second fixed slot fast, thereby has promoted the efficiency when the staff installation erects the horizontal steel.

Optionally, a first guide plate is arranged on the support plate, and a second guide plate is arranged on the first guide plate; when the fixing block is correspondingly erected on the first guide plate and the extending blocks on the fixing block are abutted against the second guide plate, the fixing block is aligned with the first fixing groove and the extending blocks are aligned with the first extending groove and the second extending groove respectively.

Through the technical scheme, the setting of first deflector and second deflector has the effect of instructing the direction for the staff is when installing the fixed block, and the accessible erects the fixed block on first fixed plate and supports tight mode with extension block on the fixed block and second deflector, aligns fixed block and first fixed slot fast, and aligns extension block and extension groove, so that the staff can be fast and convenient to the fixed block installation of pegging graft.

Optionally, bolted connection has the stopper on the lattice column, it has the gag lever post to articulate on the stopper, the one end that the stopper was kept away from to the gag lever post articulates there is the bottom plate, a plurality of first mounting holes have been seted up on the horizontal steel, correspond on the bottom plate and set up a plurality of second mounting holes that match with first mounting hole, be equipped with a plurality of mounting panels on the horizontal steel, it is a plurality of be equipped with the threaded rod on the mounting panel respectively, the threaded rod wears to establish first mounting hole and second mounting hole in proper order, the tip threaded connection of threaded rod has mounting nut, mounting nut supports tightly on the bottom plate.

Through the technical scheme, the limiting rod can stably support the horizontal steel through the bottom plate, so that the supporting effect of the lattice column on the horizontal steel is enhanced; the arrangement of the threaded rod has the function of limiting the position of the horizontal steel, so that the horizontal steel is not easy to deviate along the width direction of the horizontal steel under the action of external force, and the transverse shearing resistance between the horizontal steel and the lattice column is improved; simultaneously, mounting nut can restrict the position of threaded rod for the threaded rod is difficult for breaking away from in the first mounting hole under the effect of external force, thereby has strengthened the tensile properties between horizontal steel and the lattice column.

Optionally, a supporting hole is formed in the threaded rod, a supporting bolt matched with the supporting hole is arranged in the supporting hole in a penetrating mode, a first supporting ring and a second supporting ring are sleeved on the threaded rod respectively, a supporting spring is connected between the first supporting ring and the second supporting ring, the first supporting ring is tightly abutted to the mounting nut, the supporting spring is in a contraction state, the second supporting ring is tightly abutted to the supporting bolt, a supporting nut is connected to the end portion of the supporting bolt in a threaded mode, and the supporting nut is tightly abutted to the second supporting ring.

Through the technical scheme, under the restriction of support nut, support bolt is difficult to break away from in the supporting hole, so that support bolt can be stable carry out spacing support to the second support ring, then under the spring action of spring, first support ring can be supported tightly on support nut, make support nut be difficult for not hard up under the effect of external force, it leads to the possibility of the tensile properties reduction between horizontal steel and the lattice column to have reduced the not hard up condition of support nut appearance, thereby further strengthened the tensile properties between horizontal steel and the lattice column.

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

1. the fixing block and the extending block have the function of limiting the position of the horizontal steel, so that the possibility of transverse displacement of the horizontal steel under the action of soil pressure is reduced, and the connecting strength between the horizontal steel and the lattice column is enhanced;

2. the limiting rod can stably support the horizontal steel through the bottom plate, so that the supporting effect of the lattice column on the horizontal steel is enhanced; the arrangement of the threaded rod has the function of limiting the position of the horizontal steel, so that the horizontal steel is not easy to deviate along the width direction of the horizontal steel under the action of external force, and the transverse shearing resistance between the horizontal steel and the lattice column is improved; simultaneously, mounting nut can restrict the position of threaded rod for the threaded rod is difficult to break away from in the first mounting hole under the effect of external force, thereby has strengthened the tensile strength between horizontal steel and the lattice column.

Drawings

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

Fig. 2 is an enlarged schematic view at a in fig. 1.

Fig. 3 is a schematic cross-sectional view of a reinforcing nut according to an embodiment of the present application.

Fig. 4 is an enlarged schematic view at C in fig. 3.

FIG. 5 is a schematic cross-sectional view illustrating a magnetic block according to an embodiment of the present application.

Fig. 6 is a schematic cross-sectional structure diagram for embodying a positioning rod according to an embodiment of the present application.

Fig. 7 is a schematic cross-sectional view of a first mounting hole according to an embodiment of the present application.

Fig. 8 is an enlarged schematic view at B in fig. 1.

Reference numerals: 1. a lattice column; 2. horizontal steel; 3. a support plate; 4. a first fixing groove; 5. a second fixing groove; 6. a fixed block; 7. a first extension groove; 8. a second extension groove; 9. an extension block; 10. a connecting rod; 11. connecting grooves; 12. a guide groove; 13. a magnetic block; 14. a limiting hole; 15. a limit bolt; 16. a thread groove; 17. a rotation blocking column; 18. a rubber sleeve; 19. a rotation-resisting groove; 20. an annular groove; 21. a rubber ring; 22. positioning a rod; 23. positioning a groove; 24. a first guide plate; 25. a second guide plate; 26. a limiting plate; 27. a first connection hole; 28. a second connection hole; 29. reinforcing the bolt; 30. reinforcing the nut; 31. disassembling the groove; 40. a limiting block; 41. a limiting rod; 42. a base plate; 43. a first mounting hole; 44. a second mounting hole; 45. mounting a plate; 46. a threaded rod; 47. mounting a nut; 48. a support hole; 49. a support bolt; 50. a first support ring; 51. a second support ring; 52. a support spring; 53. and supporting the nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses bearing structure of horizontal steel shotcrete among deep basal pit assembled shaped steel braced system.

As shown in fig. 1 and 2, the lattice column comprises a lattice column 1 and horizontal steel 2, a support plate 3 is fixedly connected between the lattice column 1 and the horizontal steel 2, two side walls of the support plate 3 along the width direction of the support plate are respectively provided with a first fixing groove 4, one end of the first fixing groove 4 facing the horizontal steel 2 extends out of the support plate 3, two side walls of the horizontal steel 2 along the width direction of the support plate are respectively provided with two second fixing grooves 5, and the second fixing grooves 5 are the same as the first fixing grooves 4 on the same side in size and are mutually communicated; the fixing blocks 6 are correspondingly inserted into the first fixing grooves 4 and the second fixing grooves 5, and the outer edges of the fixing blocks 6 are in contact with the groove walls of the first fixing grooves 4 and the second fixing grooves 5.

As shown in fig. 1 and 2, two first extending grooves 7 are oppositely formed on the groove wall of the first fixing groove 4, two second extending grooves 8 are correspondingly formed on the groove wall of the second fixing groove 5, the first extending grooves 7 and the second extending grooves 8 are identical in size, four extending blocks 9 are connected to the fixing block 6, the four extending blocks 9 are correspondingly inserted into the two first extending grooves 7 and the two second extending grooves 8 respectively, and the outer edges of the four extending blocks 9 are respectively contacted with the groove walls of the two first extending grooves 7 and the two second extending grooves 8. Therefore, when the horizontal steel 2 has a tendency of displacement relative to the lattice column 1 under the pressure of the soil layer, the fixing block 6 inserted between the horizontal steel 2 and the support plate 3 can offset the transverse pressure applied to part of the horizontal steel 2, and the pressure applied to the fixing block 6 can be uniformly dispersed to the horizontal steel 2 and the support plate 3 through the plurality of extension blocks 9, so that the pressure from the soil layer can be uniformly shared by the support plate 3 and the horizontal steel 2, thereby reducing the possibility of transverse displacement of the horizontal steel 2 along the self axis direction under the action of the soil pressure, and enhancing the connection strength between the horizontal steel 2 and the lattice column 1.

As shown in fig. 3 and 4, a threaded groove 16 is formed in the fixing block 6 along the vertical direction, a plurality of limiting holes 14 matched with the threaded groove 16 are correspondingly formed in the horizontal steel 2, when the fixing block 6 is correspondingly inserted into the first fixing groove 4, the threaded groove 16 in the fixing block 6 is aligned with one of the limiting holes 14 along the vertical direction, a limiting bolt 15 matched with the threaded groove 16 penetrates through the limiting hole 14, and the limiting bolt 15 is in threaded connection with the threaded groove 16; under the restriction of limiting bolt 15, fixed block 6 is difficult to break away from backup pad 3 under the effect of external force to strengthen the joint strength between fixed block 6 and the backup pad 3, so that fixed block 6 can be stable restrict the position of horizontal steel 2.

As shown in fig. 4, an annular groove 20 is formed in the end face, facing the horizontal steel 2, of the end of the limit bolt 15, the limit hole 14 is located at the inner edge of the annular groove 20, a rubber ring 21 matched with the annular groove 20 is bonded in the annular groove 20, the outer edge of the rubber ring 21 is bonded on the groove wall of the annular groove 20 and partially extends out of the annular groove 20, and the rubber ring 21 is tightly pressed between the end of the limit bolt 15 and the horizontal steel 2; the arrangement of the rubber ring 21 increases the frictional resistance between the limit bolt 15 and the horizontal steel 2, and reduces the possibility that the limit bolt 15 is loosened and separated from the thread groove 16 under the action of external force, thereby enhancing the connection stability between the limit bolt 15 and the fixed block 6.

As shown in fig. 4, a rotation preventing column 17 coaxially arranged with the thread groove 16 is fixedly connected in the thread groove 16, the end of the rotation preventing column 17 facing the notch of the thread groove 16 is arc taper-shaped, the outer edge of the rotation preventing column 17 is bonded and coated with a rubber sleeve 18, a rotation preventing groove 19 matched with the rotation preventing column 17 is formed in the end face of the limiting bolt 15 facing the rotation preventing column 17 along the length direction of the rotation preventing column, when the limiting bolt 15 is screwed in the thread groove 16, the rotation preventing column 17 is correspondingly inserted in the rotation preventing groove 19, and the rubber sleeve 18 is tightly pressed on the wall of the limiting groove; the rotation resistance of the limiting bolt 15 is increased by the arrangement of the rotation resisting column 17 and the rubber sleeve 18, the possibility that the limiting bolt 15 is loosened and separated from the thread groove 16 under the action of external force is further reduced, and therefore the connection stability between the limiting bolt 15 and the fixing block 6 is further enhanced.

As shown in fig. 2 and 5, two detaching grooves 31 communicating with the first fixing grooves 4 are further oppositely formed on the side wall of the supporting plate 3; fixed block 6 has set firmly a plurality of steel connecting rods 10 on the terminal surface of extension piece 9, extend and to set up two on the piece 9 and connect 11 with connecting rod 10 assorted spread groove, extend piece 9 and connect on fixed block 6 through the mode that connecting rod 10 corresponds the grafting in spread groove 11. Therefore, after the foundation pit supporting is finished, a worker can firstly dismount the limiting bolt 15 in a bolt dismounting mode, then pull the fixing block 6 out of the first fixing groove 4 through the two dismounting grooves 31, and dismount the extending blocks 9 from the fixing block 6 in a mode of pulling the connecting rod 10 out of the connecting groove 11, so that the worker can respectively recycle the extending blocks 9 and the fixing block 6; meanwhile, the arrangement of the connecting rods 10 inserted in the connecting grooves 11 also enhances the shearing resistance between the fixed block 6 and the extension block 9, and reduces the possibility that the extension block 9 is bent and deformed relative to the fixed block 6 under the action of external force, thereby enhancing the connection strength between the extension block 9 and the fixed block 6.

As shown in fig. 5, an annular guide groove 12 is formed at the notch of the connecting groove 11, and the groove wall of the guide groove 12 is inclined toward the inner direction of the connecting groove 11; the guide groove 12 has a guiding function, so that the connecting rod 10 can slide into the connecting groove 11 along the groove wall of the guide groove 12, and the efficiency of workers in installing the extension block 9 is improved; still inlay on the diapire of connecting groove 11 and be equipped with magnetic path 13, when connecting rod 10 corresponds the grafting in connecting groove 11, the one end that the fixed block 6 was kept away from to connecting rod 10 and magnetic path 13 mutual contact. Therefore, the connecting rod 10 made of steel is not easily separated from the connecting groove 11 by the magnetic force of the magnetic block 13, thereby enhancing the stability of the connection between the extension block 9 and the fixing block 6.

As shown in fig. 2, a first guide plate 24 is fixedly connected to the support plate 3, a second guide plate 25 is fixedly connected to one end of the first guide plate 24 along the length direction thereof, and the second guide plate 25 is perpendicular to the first guide plate 24; when the fixing block 6 is erected on the first guide plate 24 and the extending blocks 9 and the second guide plate 25 are abutted against each other, the fixing block 6 is aligned with the first fixing groove 4 and the extending blocks 9 are aligned with the first extending groove 7 and the second extending groove 8, respectively. Therefore, when the fixing block 6 and the extension block 9 are installed, the worker can quickly adjust the fixing block 6 to a proper installation position according to the indication of the first guide plate 24 and the second guide plate 25, so that the efficiency of the worker in installing the fixing block 6 is improved.

As shown in fig. 6, two end faces of the support plate 3 in the width direction are respectively and fixedly provided with a limiting plate 26, one end part of the limiting plate 26 facing the horizontal steel 2 extends out of the support plate 3, the horizontal steel 2 is located between the two limiting plates 26, and the two end faces of the horizontal steel 2 in the width direction are respectively in contact with the two limiting plates 26; first connecting holes 27 are formed in the two limiting plates 26 in the horizontal direction respectively, second connecting holes 28 identical to the first connecting holes 27 in aperture size are formed in the horizontal steel 2, reinforcing bolts 29 sequentially penetrating through the first connecting holes 27 and the second connecting holes 28 penetrate through one of the limiting plates 26, reinforcing nuts 30 are connected to the end portions of the reinforcing bolts 29 in a threaded mode, the reinforcing nuts 30 abut against the other limiting plate 26, and the horizontal steel 2 is abutted between the two limiting plates 26 under the limitation of the limiting bolts 15 and the reinforcing nuts 30. Therefore, the arrangement of the two limiting plates 26 has the function of limiting the position of the horizontal steel 2, so that the horizontal steel 2 is not easy to displace along the width direction of the horizontal steel 2 under the action of external force, and the connection strength between the horizontal steel 2 and the lattice column 1 is further enhanced.

As shown in fig. 6, the horizontal steel 2 is still two locating levers 22 fixedly connected to the end surface of the supporting plate 3, two locating grooves 23 matched with the locating levers 22 are correspondingly formed in the supporting plate 3, when the two locating levers 22 are respectively inserted into the two locating grooves 23, the first connecting holes 27 in the two limiting plates 26 are aligned with the second connecting holes 28 in the horizontal steel 2 along the horizontal direction. Therefore, the positioning rod 22 and the positioning groove 23 have the function of indicating the installation position of the horizontal steel 2, so that when a worker installs the horizontal steel 2, the first connecting hole 27 and the second connecting hole 28 can be quickly aligned with each other in a mode that the positioning rod 22 is correspondingly inserted into the positioning groove 23, and the efficiency of the worker for installing the horizontal steel 2 is improved; simultaneously, the setting of locating lever 22 grafting in constant head tank 23 still has the effect of strengthening between horizontal steel 2 and the backup pad 3 shear resistance performance, has further reduced horizontal steel 2 along the possibility of self axis direction lateral displacement under the effect of soil pressure to the joint strength between horizontal steel 2 and the lattice column 1 has further been strengthened.

As shown in fig. 7 and 8, bolted connection has stopper 40 on the lattice column 1, it has gag lever post 41 to articulate on the stopper 40, the one end that stopper 40 was kept away from to gag lever post 41 articulates there is bottom plate 42, two first mounting holes 43 have been seted up along vertical direction on the horizontal steel 2, correspond on the bottom plate 42 and seted up two and first mounting hole 43 assorted second mounting hole 44, horizontal steel 2 is put on the shelf and is equipped with two mounting panels 45, fixedly connected with threaded rod 46 on two mounting panels 45 towards the terminal surface of bottom plate 42.

As shown in fig. 7 and 8, the threaded rods 46 sequentially penetrate through the first mounting hole 43 and the second mounting hole 44, the ends of the two threaded rods 46 are respectively connected with mounting nuts 47 in a threaded manner, and the two mounting nuts 47 are respectively abutted against the end surface of the bottom plate 42 away from the horizontal steel 2. Therefore, a triangular stable structure is formed among the limiting rod 41, the lattice column 1 and the horizontal steel 2, so that the lattice column 1 can stably support the horizontal steel 2 through the limiting rod 41 and the bottom plate 42; meanwhile, the bottom plate 42 and the horizontal steel 2 are connected with each other through the threaded rod 46 and the mounting nut 47, so that the horizontal steel 2 is not easy to separate from the bottom plate 42 under the action of external force, and the tensile property between the lattice column 1 and the horizontal steel 2 is enhanced; the two threaded rods 46 also have the effect of limiting the position of the horizontal steel 2, further reducing the possibility of lateral displacement of the horizontal steel 2 under the effect of the earth pressure, thus further strengthening the strength of the connection between the horizontal steel 2 and the lattice column 1.

As shown in fig. 8, a supporting hole 48 is formed in an end portion of the threaded rod 46 far away from the mounting plate 45, a supporting bolt 49 matched with the supporting hole 48 penetrates through the supporting hole 48, a first supporting ring 50 and a second supporting ring 51 are respectively sleeved on the threaded rod 46, a supporting spring 52 is fixedly connected between the first supporting ring 50 and the second supporting ring 51, the threaded rod 46 penetrates through an inner edge of the supporting spring 52, the first supporting ring 50 is abutted against the mounting nut 47, the second supporting ring 51 is abutted against the supporting bolt 49, the supporting spring 52 is in a contraction state, a supporting nut 53 is connected to an end portion of the supporting bolt 49 through a thread, and the supporting nut 53 is abutted against the second supporting ring 51. Therefore, after the worker connects the mounting nut 47 to the mounting bolt by threads, the worker can firstly sleeve the first support ring 50 and the second support ring 51 on the mounting bolt, press the second support ring 51 to enable the first support ring 50 to be abutted against the mounting nut 47 and the support spring 52 to be in a contraction state, then penetrate the support bolt 49 into the support hole 48, and connect the support nut 53 to the support bolt 49 by threads until the support nut 53 is abutted against the second support ring 51, at this time, the first support ring 50 can be stably abutted against the mounting nut 47 under the elastic force action of the support spring 52, so that the mounting nut 47 is not easy to loosen under the external force action, and the connection stability between the bottom plate 42 and the horizontal steel 2 is further enhanced.

It should be noted that, as shown in fig. 7 and 8, when the support nut 53 becomes loose, the support bolt 49 can still stably support the second support ring 51, that is, the support nut 53 does not affect the rotation resistance effect of the first support ring 50 on the mounting nut 47, so as to further reduce the possibility that the mounting nut 47 becomes loose and the mounting bolt becomes loose, and further enhance the connection stability between the bottom plate 42 and the horizontal steel 2, so that the lattice column 1 can stably support and limit the horizontal steel 2 through the limiting rod 41 and the bottom plate 42; meanwhile, after the foundation pit supporting is finished, the worker can firstly dismount the supporting bolt 49, then dismount the first supporting ring 50 and the second supporting ring 51, then the worker can dismount the mounting nut 47 from the threaded rod 46 and dismount the mounting plate 45 from the horizontal steel 2, so that the worker can recycle the horizontal steel 2, the lattice column 1 and the connecting materials.

The implementation principle of the embodiment of the application is as follows: when the horizontal steel 2 is required to be installed and erected on the lattice column 1, the support plate 3 can be welded on the lattice column 1, then the horizontal steel 2 is hung above the support plate 3, the angle of the horizontal steel 2 is adjusted to correspondingly insert the positioning columns on the horizontal steel 2 into the positioning grooves 23, then the horizontal steel 2 is fixedly welded on the support plate 3, the extension blocks 9 are correspondingly inserted and installed on the fixing block 6, the fixing block 6 is erected on the first guide plate 24, the fixing block 6 is quickly inserted into the first fixing groove 4 according to the guide of the first guide plate 24 and the second guide plate 25, then the limiting bolt 15 is in threaded connection with the threaded groove 16 on the fixing block 6, and therefore the installation and the fixation of the fixing block 6 and the extension blocks 9 are completed; under the restriction of fixed block 6 and extension piece 9, horizontal steel 2 is difficult for lateral displacement under the effect of soil pressure to the joint strength between horizontal steel 2 and the lattice column 1 has been strengthened.

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 (10)

1. The utility model provides a bearing structure that horizontal steel supported in deep basal pit assembled shaped steel braced system, includes lattice column (1) and horizontal steel (2), its characterized in that: a supporting plate (3) is arranged between the lattice column (1) and the horizontal steel (2), a first fixing groove (4) is formed in the side wall of the supporting plate (3), a second fixing groove (5) corresponding to the first fixing groove (4) is formed in the side wall of the horizontal steel (2), a fixing block (6) is inserted in the first fixing groove (4) and the second fixing groove (5), the outer edge of the fixing block (6) is in contact with the groove walls of the first fixing groove (4) and the second fixing groove (5), two first extending grooves (7) are formed in the groove wall of the first fixing groove (4) in a relatively opened mode, two second extending grooves (8) are formed in the groove wall of the second fixing groove (5) in a relatively opened mode, a plurality of extending blocks (9) are further arranged on the fixing block (6) respectively, the plurality of extending blocks (9) are correspondingly inserted in the two first extending grooves (7) and the two second extending grooves (8) respectively, and the outer edges of the plurality of extension blocks (9) are respectively contacted with the groove walls of the two first extension grooves (7) and the two second extension grooves (8).

2. The supporting structure of the horizontal steel support in the deep foundation pit assembled type steel supporting system according to claim 1, characterized in that: be equipped with a plurality of steel connecting rods (10) on fixed block (6), it is a plurality of two spread groove (11) with connecting rod (10) assorted have been seted up on extension piece (9) respectively, it is a plurality of connecting rod (10) correspond respectively to peg graft in a plurality of spread groove (11).

3. The support structure of the horizontal steel support in the deep foundation pit fabricated section steel support system according to claim 2, characterized in that: an annular guide groove (12) is formed in the notch of the connecting groove (11), and a magnetic block (13) is further arranged in the connecting groove (11); when the connecting rod (10) is correspondingly inserted into the connecting groove (11), the magnetic block (13) and the connecting rod (10) are mutually abutted and adsorbed.

4. The support structure of the horizontal steel support in the deep foundation pit fabricated section steel support system according to claim 1, characterized in that: the horizontal steel (2) is provided with a limiting hole (14) along the vertical direction, a limiting bolt (15) penetrates through the limiting hole (14), the fixing block (6) is provided with a thread groove (16) matched with the limiting bolt (15), and the limiting bolt (15) is in threaded connection with the thread groove (16).

5. The support structure of the horizontal steel support in the deep foundation pit fabricated section steel support system according to claim 4, wherein: the anti-rotation device is characterized in that a rotation blocking column (17) which is coaxial with the thread groove (16) is arranged in the thread groove (16), a rubber sleeve (18) is arranged on the outer edge of the rotation blocking column (17), a rotation blocking groove (19) which is matched with the rotation blocking column (17) is formed in the end face, facing the rotation blocking column (17), of the limiting bolt (15), the rotation blocking column (17) is correspondingly inserted in the rotation blocking groove (19), and the rubber sleeve (18) abuts against the wall of the rotation blocking groove (19).

6. The support structure of the horizontal steel support in the deep foundation pit fabricated section steel support system according to claim 4, wherein: an annular groove (20) is formed in the end face, facing the fixing block (6), of the end of the limiting bolt (15), a rubber ring (21) partially extending out of the annular groove (20) is arranged in the annular groove (20), and the rubber ring (21) abuts against the horizontal steel (2).

7. The support structure of the horizontal steel support in the deep foundation pit fabricated section steel support system according to claim 1, characterized in that: a plurality of positioning rods (22) are arranged on the horizontal steel (2), and a plurality of positioning grooves (23) matched with the positioning rods (22) are correspondingly formed in the supporting plate (3); when a plurality of locating levers (22) correspond respectively and peg graft in a plurality of constant head tanks (23), first fixed slot (4) and second fixed slot (5) are along vertical direction alignment.

8. The supporting structure of the horizontal steel support in the deep foundation pit assembled type steel supporting system according to claim 1, characterized in that: a first guide plate (24) is arranged on the support plate (3), and a second guide plate (25) is arranged on the first guide plate (24); when the fixing block (6) is correspondingly erected on the first guide plate (24) and the extending blocks (9) on the fixing block (6) are abutted against the second guide plate (25), the fixing block (6) is aligned with the first fixing groove (4) and the extending blocks (9) are respectively aligned with the first extending groove (7) and the second extending groove (8).

9. The supporting structure of the horizontal steel support in the deep foundation pit assembled type steel supporting system according to claim 1, characterized in that: bolted connection has stopper (40) on lattice column (1), articulated on stopper (40) have gag lever post (41), the one end that stopper (40) was kept away from in gag lever post (41) articulates there is bottom plate (42), a plurality of first mounting holes (43) have been seted up on horizontal steel (2), it has a plurality of and first mounting hole (43) assorted second mounting hole (44) to correspond to have seted up on bottom plate (42), be equipped with a plurality of mounting panels (45) on horizontal steel (2), it is a plurality of be equipped with threaded rod (46) on mounting panel (45) respectively, first mounting hole (43) and second mounting hole (44) are worn to establish in proper order in threaded rod (46), the tip threaded connection of threaded rod (46) has mounting nut (47), mounting nut (47) support tightly on bottom plate (42).

10. The supporting structure of the horizontal steel support in the deep foundation pit fabricated section steel supporting system according to claim 9, characterized in that: support hole (48) have been seted up on threaded rod (46), wear to be equipped with in support hole (48) with support hole (48) assorted supporting bolt (49), the cover is equipped with first support ring (50) and second support ring (51) respectively on threaded rod (46), be connected with supporting spring (52) between first support ring (50) and second support ring (51), first support ring (50) and mounting nut (47) counterbalance tightly, supporting spring (52) are in the contraction state, second support ring (51) and supporting bolt (49) counterbalance tightly, the tip threaded connection of supporting bolt (49) has supporting nut (53), supporting nut (53) counterbalance tightly on second support ring (51).

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