CN214303034U

CN214303034U - Interim escape way is used to foundation ditch

Info

Publication number: CN214303034U
Application number: CN202023016447.8U
Authority: CN
Inventors: 赵磊
Original assignee: Beijing Jingdian Fengsheng Construction Co ltd
Current assignee: Beijing Jingdian Fengsheng Construction Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-09-28
Anticipated expiration: 2030-12-14

Abstract

The utility model belongs to the technical field of the building engineering technique and specifically relates to a foundation ditch is with interim escape way is related to, it includes stand and crossbeam, stand and crossbeam enclose to close and form rectangle frame column structure, rectangle frame column structure is equipped with two sets ofly side by side, and link to each other through the tie-beam between two sets of rectangle frame column structures, one side that two crossbeams of same horizontal plane are close to each other all is equipped with the supporting beam that parallels with the crossbeam, the supporting beam strides and establishes between two tie-beams of same horizontal plane, be equipped with prefabricated stair between two sets of rectangle frame column structures, the one end of prefabricated stair is fixed on the crossbeam and the supporting beam on a set of rectangle frame column structure top, the other end of prefabricated stair is fixed on the crossbeam and the supporting beam of another group rectangle frame column structure bottom. The present application has the following effects: the transverse beams, the connecting beams and the upright posts are enclosed to form a rectangular frame-shaped structure, and then the prefabricated staircase is installed, so that inconvenience caused by high-altitude operation is reduced.

Description

Interim escape way is used to foundation ditch

Technical Field

The application relates to the technical field of constructional engineering, in particular to a temporary safety channel for a foundation pit.

Background

Excavation of foundation pits is often involved in the construction process of building engineering, and particularly for high-rise buildings, the depth of the foundation pits influences the anti-seismic effect of the high-rise buildings. In the construction process of the foundation pit, field construction personnel need to enter the foundation pit through a safety channel to perform construction operation, and the safety channel is usually constructed temporarily.

The utility model discloses a chinese utility model patent that grant bullets No. CN204000932U discloses a safe upper and lower passageway in deep basal pit construction operation, it includes frame structure, coupling mechanism, stair mechanism and safe access door, frame structure includes the crossbeam, the longeron, the stand, the drag link, center pillar and bearing diagonal part, the bearing diagonal part is located frame structure's leading flank respectively, left surface and right flank, the bearing diagonal part includes the bearing diagonal, frame fixed steel sheet and central fixed steel sheet, the bearing diagonal number is four, the one end of bearing diagonal welds the fixed steel sheet of frame respectively, the other end all welds on same central fixed steel sheet.

In view of the above-mentioned related technologies, the inventor believes that when the depth of the foundation pit is deep, the construction of the safety channel often forms high-altitude operation, and there is inconvenience in fixing each steel structural member of the foundation pit in high altitude, and it is difficult to ensure the accuracy in fixing.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the construction of escape way, this application provides a temporary escape way for foundation ditch.

The application provides a temporary safety channel for foundation ditch adopts following technical scheme:

the utility model provides a foundation ditch is with interim safe passageway, includes stand and crossbeam, stand and crossbeam mutually perpendicular just enclose to close and form rectangle frame column structure, rectangle frame column structure is equipped with two sets ofly side by side, and links to each other through the tie-beam between two sets of rectangle frame column structures, and the tie-beam is located the four corners of rectangle frame column structure, and one side that two crossbeams of same horizontal plane are close to each other all is equipped with the supporting beam that parallels with the crossbeam, the supporting beam strides and establishes between two tie-beams of same horizontal plane, is equipped with prefabricated stair between two sets of rectangle frame column structures, prefabricated stair stride and establish between two tie-beams of same horizontal plane, and the one end of prefabricated stair is fixed on the crossbeam and the supporting beam on a set of rectangle frame column structure top, and the other end of prefabricated stair is fixed on the crossbeam and the supporting beam of another set of rectangle frame column structure bottom.

By adopting the technical scheme, the cross beam, the connecting beam and the upright post are firstly enclosed to form the rectangular frame-shaped structure during construction, and then the prefabricated staircase is installed, so that inconvenience caused by high-altitude operation is reduced, and the prefabricated staircase is processed on the ground, so that the size of the prefabricated staircase is more accurate.

Optionally, prefabricated staircase is including two sloping that set up side by side, stride establish the step board between two sloping, establish the flat beam at sloping length direction both ends and stride the landing slab of establishing between two flat beams, the one end butt on ground is kept away from to flat beam and crossbeam and a supporting beam, and the one end that the ground was kept away from to crossbeam and a supporting beam all is equipped with the locking screw who wears to establish on the flat beam, locking screw wears to establish on the flat beam and threaded connection has lock nut.

By adopting the technical scheme, the locking nut is abutted against one end, far away from the ground, of the flat beam, so that the flat beam can be fixed on the cross beam and the supporting beam, and the purpose of fixing the prefabricated staircase between the two rectangular frame-shaped structures is achieved.

Optionally, a base is arranged at one end, close to the ground, of the stand column, and the base is connected with the stand column through a pre-buried assembly.

Through adopting above-mentioned technical scheme, the base station is used as the installation basis of stand for the stand is more firm at subaerial installation, is difficult for rocking, and the base station has avoided the installation of escape way to cause the destruction to the bottom surface of foundation ditch.

Optionally, pre-buried subassembly including establish in the base station the crotch spare and inlay establish the base station keep away from ground one end and with crotch spare fixed connection's fixed plate, the stand is close to the one end on ground and is equipped with the butt flange with fixed plate looks butt, the one end that ground was kept away from to the fixed plate is equipped with fastening screw, fastening screw wears to establish on the butt flange and threaded connection has fastening nut.

Through adopting above-mentioned technical scheme, pre-buried subassembly is used for strengthening the connection effect between stand and the base station to make the installation of stand more firm.

Optionally, a dense mesh safety net is arranged between the two cross beams on the same vertical plane and between the two connecting beams on the same vertical plane.

Through adopting above-mentioned technical scheme, close mesh safety net is being used for strengthening constructor's security of walking on prefabricated stair.

Optionally, all be equipped with the connecting piece between crossbeam and the stand and between tie-beam and the stand, the connecting piece includes angle steel plate, angle steel plate establishes reentrant corner department between crossbeam and stand and the reentrant corner department between tie-beam and the stand, angle steel plate includes two mutually perpendicular's cell board.

Through adopting above-mentioned technical scheme, the angle steel board is used for strengthening the joint strength between crossbeam and tie-beam and the stand to make the holistic structural strength of escape way and stability can strengthen, the escape way is difficult for producing and rocks, and the security during the use is higher.

Optionally, one end of the angle steel plate in the width direction is provided with a butt plate, and the butt plate is fixedly connected with the cross beam and the stand column or the connecting beam and the stand column.

Through adopting above-mentioned technical scheme, the butt plate is used for further reinforcing the connection effect between crossbeam and tie-beam and the stand to make the holistic structural strength of escape way and stability further strengthen.

Optionally, a cross brace is arranged between the two connecting beams with the same longitudinal section.

Through adopting above-mentioned technical scheme, the bridging is used for strengthening the connectivity between two tie-beams to make the holistic antidetonation effect of escape way and structural strength promote.

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

1. during construction, the cross beams, the connecting beams and the stand columns are enclosed to form a rectangular frame-shaped structure, and then the prefabricated staircase is installed, so that inconvenience caused by high-altitude operation is reduced, and the prefabricated staircase is processed on the ground, so that the size of the prefabricated staircase is more accurate;

2. through setting up the base station for the stand is more firm at subaerial installation, is difficult for rocking, and the base station has avoided the installation of escape way to cause the destruction to the bottom surface of foundation ditch.

Drawings

Fig. 1 is a schematic structural diagram of an entire temporary safety channel for a foundation pit according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a security mesh hidden in an embodiment of the present application;

FIG. 3 is a schematic view of the connection of a column and a base in an embodiment of the present application;

fig. 4 is a schematic view of the connection beam and the flat beam in the embodiment of the present application.

Description of reference numerals: 1. a column; 11. a base station; 12. pre-burying the assembly; 121. a hook member; 122. a fixing plate; 1221. fastening a screw rod; 1222. fastening a nut; 13. abutting against the flange; 2. a cross beam; 21. locking the screw rod; 22. locking the nut; 3. a connecting beam; 4. a support beam; 5. prefabricating a stair; 51. an oblique beam; 52. a step plate; 53. a flat beam; 54. a platform plate; 6. a scissor support; 7. a connecting member; 71. angle steel plates; 72. a butt joint plate; 8. a dense mesh safety net.

Detailed Description

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

The embodiment of the application discloses a temporary safety channel for a foundation pit. Referring to fig. 1 and 2, the temporary safety passageway for the foundation pit includes columns 1, cross beams 2, connecting beams 3, support beams 4, and prefabricated stairways 5.

The upright column 1 and the cross beam 2 are perpendicular to each other, and the upright column 1 and the cross beam 2 enclose to form a rectangular frame-shaped mechanism. The rectangular frame-shaped structures are arranged in two groups side by side and are connected through a connecting beam 3. The connecting beams 3 are positioned at four corners of the rectangular frame-shaped structure, and the connecting beams 3 are fixed on the upright posts 1. Upright 1, crossbeam 2 and tie-beam 3 all can adopt the square steel material to make, all welded fastening between upright 1, crossbeam 2 and the tie-beam 3, and enclose between upright 1, crossbeam 2 and the tie-beam 3 and close and form cuboid frame column structure.

A scissor brace 6 is arranged between the two connecting beams 3 on the same longitudinal section. The cross brace 6 comprises two unit rods which are arranged in a crossed mode, the unit rods of the cross brace 6 are all supported by square steel, the two unit rods are fixedly welded, and the two unit rods of the cross brace 6 are located on the same plane. The cross braces 6 are used to enhance the connectivity between the two connecting beams 3, so that the overall anti-seismic effect and structural strength of the secure channel are improved.

Referring to fig. 2 and 3, a base 11 is provided at one end of the column 1 near the ground. The base platform 11 can be a cuboid concrete structure poured on the ground, and the base platform 11 is used as an installation foundation of the upright post 1, so that the upright post 1 is more stably installed on the ground and is not easy to shake, and the base platform 11 avoids the damage of the installation of the safety channel to the bottom surface of the foundation pit. The base platform 11 is connected with the upright post 1 through the embedded component 12, the embedded component 12 is used for enhancing the connection effect between the upright post 1 and the base platform 11, and the embedded component 12 is fixed in a template of the base platform 11 in advance during pouring construction of the base platform 11.

The embedded component 12 comprises a hook member 121 and a fixing plate 122. Two hook members 121 are symmetrically arranged, and the hook members 121 are positioned inside the base platform 11; the fixing plate 122 is embedded in one end of the base 11 away from the ground, and the fixing plate 122 is welded and fixed to the hook 121. The hook member 121 makes the embedded component 12 not easy to fall out from the base 11, and the fixing plate 122 is used for mounting and fixing the upright post 1. The one end that the stand 1 is close to ground is equipped with butt flange 13, and butt flange 13 and stand 1 structure as an organic whole. The abutting flange 13 abuts against the fixing plate 122, a fastening screw 1221 is welded and fixed to one end, far away from the ground, of the fixing plate 122, and the fastening screw 1221 penetrates through the abutting flange 13 and is in threaded connection with a fastening nut 1222. The fastening nut 1222 abuts against the abutment flange 13, so that the abutment flange 13 is fixed to the fixing plate 122.

Referring to fig. 2, connecting pieces 7 are arranged between the cross beam 2 and the upright post 1 and between the connecting beam 3 and the upright post 1, each connecting piece 7 comprises an angle steel plate 71 and a butt plate 72, and the angle steel plates 71 and the butt plates 72 are of an integral structure. The angle steel plate 71 comprises two mutually perpendicular unit plates, the angle steel plate 71 is arranged at the internal corner between the cross beam 2 and the upright post 1 and the internal corner between the connecting beam 3 and the upright post 1, and the unit plates are welded and fixed with the cross beam 2, the connecting beam 3 and the upright post 1. Angle steel plate 71 is used for strengthening the joint strength between crossbeam 2 and tie-beam 3 and stand 1 to make the holistic structural strength of escape way and stability can strengthen, the difficult production of escape way rocks, and the security during the use is higher.

The abutting plate 72 is arranged at one end of the width direction of the angle steel plate 71, the abutting plate 72 comprises two unit ends which are perpendicular to each other, and two unit sections of the abutting plate 72 are respectively positioned on the upright post 1 and the cross beam 2, or on the upright post 1 and the connecting beam 3. The abutting plate 72, the cross beam 2, the connecting beam 3 and the upright post 1 are welded and fixed. The abutting plate 72 is used for further enhancing the connecting effect between the cross beam 2 and the connecting beam 3 and the upright post 1, so that the overall structural strength and stability of the safety channel are further enhanced.

The supporting beam 4 is arranged on one side, close to each other, of the two cross beams 2 on the same horizontal plane, and the supporting beam 4 is parallel to the cross beams 2. The supporting beam 4 is arranged between the two connecting beams 3 on the same horizontal plane in a spanning mode, the supporting beam 4 and the connecting beams 3 are fixedly welded, and the supporting beam 4 strengthens the structural strength between the two connecting beams 3 to a certain degree. Be equipped with prefabricated stair 5 between two sets of rectangular frame, prefabricated stair 5 is used for constructor upper and lower foundation ditch. Prefabricated staircase 5 can be reinforced concrete structure, also can constitute through shaped steel and steel sheet welded fastening, and one of prefabricated staircase 5 is fixed on crossbeam 2 and a supporting beam 4 of a set of rectangular frame structure top, and the other end of prefabricated staircase 5 is fixed on crossbeam 2 and a supporting beam 4 of another set of rectangular frame column structure bottom. The cross beams 2 and the support beams 4 make the installation and fixation of the prefabricated staircase 5 end more stable.

After the stand 1, the crossbeam 2 and the tie-beam 3 enclose and close to form cuboid frame column structure, hoist prefabricated staircase 5 through hoisting equipment, and fix the one end of prefabricated staircase 5 in the bottom of a rectangle frame column structure, fix the other end of prefabricated staircase 5 on the top of another rectangle frame column structure and can accomplish the assembly, thereby the inconvenience that brings when having reduced high altitude construction, and the processing of prefabricated staircase 5 is accomplished on ground, therefore the size of prefabricated staircase 5 is also more accurate.

The width of the prefabricated staircase 5 is set to be half of the length of the cross beam 2 so that two prefabricated staircases 5 can be fixed on the same cross beam 2. When the degree of depth of foundation ditch is darker, prefabricated staircase 5 can be head and tail in turn and the successive layer dislocation be provided with a plurality ofly to reduce the area that escape way occupy the foundation ditch. At this time, a plurality of cross beams 2 and connecting beams 3 are arranged on one upright post 1 at equal intervals.

Referring to fig. 2 and 4, the prefabricated staircase 5 includes two stringers 51 disposed side by side, a step plate 52 disposed across between the two stringers 51, flat beams 53 disposed at both ends of the stringers 51 in the length direction, and a landing plate 54 disposed across between the two flat beams 53. The length of the flat beam 53 is equal to the distance between the cross beam 2 and the support beam 4 on the same horizontal plane, and the flat beam 53 abuts against one ends of the cross beam 2 and the support beam 4 away from the ground. The locking screw rods 21 are fixedly welded at the ends, far away from the ground, of the cross beam 2 and the support beam 4, the locking screw rods 21 penetrate through the flat beam 53, and the locking screw nuts 22 are in threaded connection. The locking nut 22 is abutted with one end of the flat beam 53 far away from the ground, so that the flat beam 53 can be fixed on the cross beam 2 and the supporting beam 4, and the purpose of fixing the prefabricated staircase 5 between the two rectangular frame-shaped structures is achieved.

In order to prevent a foot from being kicked on the lock screw 21 and the lock nut 22 when a constructor walks on the platform plate 54 and the step plate 52, an embedding groove for the lock nut 22 to be embedded is formed in one end, away from the ground, of the flat beam 53, and the length of the lock screw 21 is set to the height of the flat beam 53, so that the lock screw 21 and the lock bolt are prevented from protruding out of the top beam.

Referring to fig. 1, a dense mesh safety net 8 is welded and fixed between two cross beams 2 on the same vertical plane and between two connecting beams 3 on the same vertical plane. The dense mesh safety net 8 is used for enhancing the safety of constructors walking on the prefabricated staircase 5. The dense mesh safety nets 8 between the two connecting beams 3 on the same vertical plane are welded and fixed on the cross braces 6, and the dense mesh safety nets 8 in front of the two cross beams 2 on the same vertical plane are provided with openings at the outlet ends of the prefabricated stairs 5 close to one end of the ground so as to be used for the entering and exiting of application workers.

The implementation principle of the temporary safety channel for the foundation pit in the embodiment of the application is as follows: before the construction, the construction of the prefabricated staircase 5 is firstly carried out on the ground, then the pouring of the base platform 11 is carried out in the foundation pit, before the pouring and forming of the base platform 11, the hook piece 121 is welded and fixed on the fixing plate 122 to form the embedded component 12, then the embedded component 12 is fixed in the concrete template of the base platform 11 in advance, then the pouring of the base platform 11 is carried out, then, the fastening screws 1221 are welded to the fixing plate 122, the abutment flange 13 of the column 1 is fixed to the fixing plate 122, the abutment flange 13 is fastened and fixed to the fixing plate 122 by the fastening nuts 1222, then, the cross beam 2 and the connecting beam 3 are welded on the upright post 1, the connecting strength between the cross beam 2 and the connecting beam 3 and the upright post 1 is enhanced through the connecting piece 7, the supporting beam 4 is welded between the two connecting beams 3 on the same horizontal plane, and the locking screw 21 is welded on the cross beam 2 and the supporting beam 4.

Then hoist prefabricated staircase 5 through lifting device to fix the bottom at a rectangle frame column structure with the one end of prefabricated staircase 5, fix the other end at the top of another rectangle frame column structure with the prefabricated staircase 5, then set up bridging 6 between two tie-beams 3 in same vertical plane, carry out the fixed assembly that can accomplish of close mesh safety net 8 again. During construction, the cross beam 2, the connecting beam 3 and the upright post 1 are enclosed to form a rectangular frame-shaped structure, and then the prefabricated staircase 5 is installed, so that inconvenience caused by high-altitude operation is reduced, and the prefabricated staircase 5 is machined on the ground, so that the size of the prefabricated staircase 5 is more accurate.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a foundation ditch is with interim escape way, includes stand (1) and crossbeam (2), stand (1) and crossbeam (2) mutually perpendicular just enclose and close and form rectangle frame column structure, rectangle frame column structure is equipped with two sets ofly side by side, and links to each other through tie-beam (3) between two sets of rectangle frame column structures, and tie-beam (3) are located the four corners of rectangle frame column structure, its characterized in that: one side that two crossbeams (2) of same horizontal plane are close to each other all is equipped with a supporting beam (4) that parallels with crossbeam (2), supporting beam (4) are striden and are established between two tie-beams (3) of same horizontal plane, are equipped with prefabricated stair (5) between two sets of rectangle frame column structure, prefabricated stair (5) are striden and are established between two tie-beams (3) of same horizontal plane, and the one end of prefabricated stair (5) is fixed on crossbeam (2) and a supporting beam (4) on a set of rectangle frame column structure top, and the other end of prefabricated stair (5) is fixed on crossbeam (2) and a supporting beam (4) of another set of rectangle frame column structure bottom.

2. The temporary safety channel for the foundation pit as claimed in claim 1, wherein: prefabricated staircase (5) are including two sloping (51) that set up side by side, stride ladder step (52) of establishing between two sloping (51), establish flat beam (53) at sloping (51) length direction both ends and stride platform board (54) of establishing between two flat beams (53), the one end butt on ground is kept away from with crossbeam (2) and supporting beam (4) in flat beam (53), and crossbeam (2) and supporting beam (4) keep away from the one end on ground and all be equipped with lock screw (21) of wearing to establish on flat beam (53), lock screw (21) are worn to establish on flat beam (53) and threaded connection has lock nut (22).

3. The temporary safety channel for the foundation pit as claimed in claim 1, wherein: the stand (1) is close to the one end on ground and is equipped with base station (11), link to each other through pre-buried subassembly (12) between base station (11) and the stand (1).

4. A temporary safety channel for foundation pit according to claim 3, characterized in that: pre-buried subassembly (12) including establish hook piece (121) in base station (11) and inlay establish base station (11) keep away from ground one end and with hook piece (121) fixed connection's fixed plate (122), stand (1) is close to the one end on ground and is equipped with butt flange (13) with fixed plate (122) looks butt, the one end that ground was kept away from in fixed plate (122) is equipped with fastening screw (1221), fastening screw (1221) are worn to establish on butt flange (13) and threaded connection has fastening nut (1222).

5. The temporary safety channel for the foundation pit as claimed in claim 1, wherein: dense mesh safety nets (8) are arranged between the two cross beams (2) on the same vertical plane and between the two connecting beams (3) on the same vertical plane.

6. The temporary safety channel for the foundation pit as claimed in claim 1, wherein: all be equipped with connecting piece (7) between crossbeam (2) and stand (1) and between tie-beam (3) and stand (1), connecting piece (7) are including angle steel board (71), reentrant corner department and tie-beam (3) and the reentrant corner department between stand (1) between crossbeam (2) and stand are established in angle steel board (71), angle steel board (71) include two mutually perpendicular's cell board.

7. The temporary safety channel for the foundation pit as claimed in claim 6, wherein: one end of the angle steel plate (71) in the width direction is provided with a butt joint plate (72), and the butt joint plate (72) is fixedly connected with the cross beam (2) and the upright post (1) or the connecting beam (3) and the upright post (1).

8. The temporary safety channel for the foundation pit as claimed in claim 1, wherein: a cross brace (6) is arranged between the two connecting beams (3) with the same longitudinal section.