CN215165760U - Recoverable combined steel structure open caisson - Google Patents
Recoverable combined steel structure open caisson Download PDFInfo
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- CN215165760U CN215165760U CN202121108842.0U CN202121108842U CN215165760U CN 215165760 U CN215165760 U CN 215165760U CN 202121108842 U CN202121108842 U CN 202121108842U CN 215165760 U CN215165760 U CN 215165760U
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Abstract
The utility model relates to a steel construction open caisson technical field specifically is a recoverable combined steel construction open caisson, including four steel corner posts and four walls of a well that two bisymmetry set up, the wall of a well is installed between two adjacent steel corner posts, and four steel corner posts and four walls of a well composite mount form the steel construction open caisson, the utility model discloses with the notion of combination assembly, with steel construction open caisson component at the mill preparation processing, job site ground equipment forms rigid structure, sinks the open caisson according to conventional open caisson construction technique and targets in place, after accomplishing the non-excavation construction of pipeline, demolish the connecting piece of steel open caisson wall of a well on the interior backfill side of open caisson, extract the recovery and recycle the steel member on ground at last to guaranteed that the work progress influences minimum, the risk is minimum to the surrounding environment, and envelope and permanent structure unite two into one, economic nature is good, the high quality.
Description
Technical Field
The utility model relates to a steel construction open caisson technical field specifically is a recoverable combined steel construction open caisson.
Background
Underground pipelines (sewage pipes, power main pipes and the like) constructed in a non-excavation mode (pipe jacking, pipe pulling and the like) are required to be provided with working wells. Traditionally, a reinforced concrete open caisson is arranged every 100m or so along a pipeline, the clearance in the reinforced concrete open caisson is 3.5m by 6.0m (or slightly larger), and the well depth is basically more than 6 m.
The reinforced concrete open caisson has the following disadvantages:
1. can not be repeatedly used. The reinforced concrete open caisson only plays a role in the jacking (temporary working condition) process of the pipeline, and after the construction of the jacking pipe is finished, the reinforced concrete open caisson can only be used as an inspection well (permanent working condition) for personnel to maintain the pipeline.
2. The sinking process is difficult to control. Once the reinforced concrete open caisson is poured, the weight is basically stable, and the resistance of the open caisson in the sinking process is changed, so that the sinking stability is difficult to control.
3. The cost is higher, and the construction period is longer. The reinforced concrete open caisson is generally constructed in a layered mode and sinks in a layered mode, and after concrete is poured, the open caisson needs to wait for the section of the open caisson to reach the design strength, so that the construction period of the reinforced concrete open caisson is long, and the influence on the road or the surrounding environment is long. Therefore, the recyclable combined type steel structure open caisson is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a recoverable combined steel construction open caisson is in order to solve above-mentioned technical problem.
In order to achieve the above object, the utility model provides a following technical scheme: a recoverable combined steel structure open caisson comprises four steel corner columns and four well walls, wherein the four steel corner columns and the four well walls are arranged in a pairwise symmetry mode, the well walls are installed between every two adjacent steel corner columns, and the four steel corner columns and the four well walls are installed in a combined mode to form the steel structure open caisson;
the cross section of the steel corner column is square, and an angle steel is welded at the joint of the steel corner column and the well wall;
four the wall of a well includes many H shaped steel, multiunit A shaped steel board subassembly and at least a set of combination steel plate spare of taking the through-hole, every group including two A shaped steel boards in the A shaped steel board subassembly, including two combination steel boards, many in the combination steel plate spare H shaped steel sets up between two adjacent steel corner posts, the angle steel is connected with adjacent H shaped steel edge of a wing, adjacent two equally divide between the both ends edge of a wing of H shaped steel and do not be connected through A shaped steel board subassembly or combination steel plate spare.
Preferably, the steel blade foot is further included, the bottom of the steel blade foot is in a wedge shape, the steel blade foot is hollow, an opening is formed in the top of the steel blade foot, a drawknot steel plate is arranged between the side walls of the inner cavity of the steel blade foot, and the steel corner post and the H-shaped steel are inserted into the inner cavity of the steel blade foot and located on the upper portion of the drawknot steel plate.
Preferably, the steel ring beam is further included and is rectangular, and the steel ring beam is sleeved on the steel corner posts and the top of the well wall.
Preferably, the H-shaped steel and the angle steel, the H-shaped steel and the A-shaped steel plate assembly and the H-shaped steel and the combined steel plate are bolted and fixed through a plurality of bolt assemblies;
the bolt assembly comprises two nuts and a steel screw;
the two nuts are respectively welded on one side face, far away from each other, of the angle steel, and the steel screw penetrates through the angle steel and the H-shaped steel and is bolted with the nuts;
the two nuts are respectively welded on one side face, far away from each other, of the two A-shaped steel plates, and the steel screw penetrates through the H-shaped steel and the inner and outer A-shaped steel plates and is bolted with the nuts;
the two nuts are respectively welded on one side face, far away from each other, of the two combined steel plates, and the steel screw penetrates through the H-shaped steel and the inner and outer combined steel plates and is bolted with the nuts.
Preferably, the combination steel sheet includes a slice first B shaped steel board, two C shaped steel boards and a slice second B shaped steel board, two the semicircle orifice of mutually supporting all is seted up on the C shaped steel board, down be first B shaped steel board, two C shaped steel boards and second B shaped steel board from last in proper order during combination steel sheet aggregate erection, and the semicircle orifice of two C shaped steel boards sets up relatively and forms the round hole.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a modular assembly's notion, with steel construction open caisson component at the preparation processing of mill, job site ground equipment forms rigid structure, sink the open caisson target in place according to conventional open caisson construction technique, after the non-excavation construction of accomplishing the pipeline, the connecting piece of the steel open caisson wall of a well is demolishd to the backfill side of the side in the open caisson, extract the recovery on ground the steel component at last and recycle, thereby guaranteed that the work progress influences minimum, the risk is minimum to the surrounding environment, and envelope and permanent structure unite two into one, economic nature is good, high quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a schematic view of the structure of the well wall with through holes of the present invention;
FIG. 4 is a schematic view of a well wall splitting member according to the present invention;
FIG. 5 is a schematic structural view of a steel corner post according to the present invention;
FIG. 6 is a schematic structural view of the middle crown beam of the present invention after being inserted into the steel corner post or the well wall;
fig. 7 is the structure schematic diagram of the utility model after the steel angle column or the well wall is inserted into the steel blade foot.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a steel corner post; 11. angle steel; 2. a well wall; 21. h-shaped steel; 22. a type A steel plate; 23. combining steel plates; 231. a first B-type steel plate; 232. c-shaped steel plates; 233. a second B-type steel plate; 3. a steel blade foot; 31. drawing the steel plate; 4. a steel ring beam; 5. a bolt assembly; 51. a nut; 52. a steel screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a recoverable combined steel structure open caisson comprises four steel corner columns 1 and four well walls 2 which are arranged in a pairwise symmetry mode, wherein the well walls 2 are installed between every two adjacent steel corner columns 1, and the four steel corner columns 1 and the four well walls 2 are installed in a combined mode to form the steel structure open caisson;
the cross section of the steel angle column 1 is square, and an angle steel 11 is welded at the joint of the steel angle column 1 and the well wall 2;
four well walls 2 include many H shaped steel 21, the combination steel sheet spare of multiunit A shaped steel board subassembly and at least a set of band-pass hole, include two A shaped steel 22 in every A shaped steel subassembly of group, include two combination steel sheet 23 in the combination steel sheet spare, many H shaped steel 21 set up between two adjacent steel corner posts 1, angle steel 11 is connected with adjacent H shaped steel 21 edge of a wing, equally divide between two adjacent H shaped steel 21's the both ends edge of a wing and do not be connected through A shaped steel board subassembly or combination steel sheet spare.
Specifically, still include steel sword foot 3, and 3 bottoms of steel sword foot are the wedge shape, and 3 inside hollows of steel sword foot and top are equipped with the opening, are provided with drawknot steel sheet 31 between 3 inner chamber lateral walls of steel sword foot, and steel angle post 1 and H shaped steel 21 are all inserted and are established 3 inner chambers of steel sword foot and are located drawknot steel sheet 31 upper portion.
Specifically, still include steel ring roof beam 4, and steel ring roof beam 4 is rectangle shape, and steel ring roof beam 4 cover is established at steel corner post 1 and wall of a well 2 top.
Specifically, the H-shaped steel 21 and the angle steel 11, the H-shaped steel 21 and the A-shaped steel plate assembly, and the H-shaped steel 21 and the combined steel plate 23 are bolted and fixed through a plurality of bolt assemblies 5;
the bolt assembly 5 comprises two nuts 51 and a steel screw 52;
the two nuts 51 are respectively welded on the side surfaces, far away from each other, of the angle steel 11, and the steel screw 52 penetrates through the angle steel 11 and the H-shaped steel 21 and is bolted with the nuts 51;
the two nuts 51 are respectively welded on one side surfaces of the two A-shaped steel plates 22 which are far away from each other, and the steel screw 52 penetrates through the H-shaped steel 21 and the inner and outer A-shaped steel plates 22 and is bolted with the nuts 51;
two nuts 51 are welded on the side surfaces of the two combined steel plates 23 away from each other, and a steel screw 52 penetrates through the H-shaped steel 21 and the inner and outer combined steel plates 23 and is bolted with the nuts.
Specifically, combination steel sheet 23 includes a slice first B shaped steel plate 231, two C shaped steel plates 232 and a slice second B shaped steel plate 233, all sets up the semicircle orifice of mutually supporting on two C shaped steel plates 232, and last down being first B shaped steel plate 231, two C shaped steel plates 232 and second B shaped steel plate 233 in proper order during combination installation of combination steel sheet 23, and the semicircle orifice of two C shaped steel plates 232 sets up relatively and forms the round hole.
Example (b):
1) processing a steel member in a factory according to design requirements, wherein the steel member comprises a segmented steel blade foot 3, a segmented steel ring beam 4, a steel corner post 1, an A-shaped steel plate 22, a first B-shaped steel plate 231, a C-shaped steel plate 232, a second B-shaped steel plate 233 and H-shaped steel 21, and conveying the processed steel member to a construction site, wherein when the steel member is processed, the width of the A-shaped steel plate 22 takes 100mm as a modulus, and the height takes 300mm as a modulus; the arc radius of the C-shaped steel plate 232 meets the requirement of the outer radius of the pipeline to be constructed and is 100mm, the size from the arc to the upper edge and the two side edges of the plate is not more than 200mm, and the length and the width of the C-shaped steel plate take 100mm as modulus; the first B-shaped steel plate 231 and the second B-shaped steel plate 233 have the same width as the C-shaped steel plate 232 and the same height as the C-shaped steel plate 232, and the modulus of 100 mm; the thicknesses of the plates are consistent, and 2mm is taken as a modulus and is not less than 8 mm; the height of the cross section of the H-shaped steel 21 takes 100mm as a modulus and is not less than 500mm, and the height of the H-shaped steel 21 takes 300mm as a modulus; the height of the cross section of the H-shaped steel 21 is the same as that of the cross section of the steel corner post 1, and the height of the H-shaped steel 21 is the same as that of the steel corner post 1; the top elevation of the steel open caisson is controlled to be close to the ground elevation or slightly higher than the ground elevation. The H-shaped steel and the steel angle column in the well wall are at the same height, the top elevations of the A-shaped steel plate and the B-shaped steel plate which are bolted on the H-shaped steel are the same as the lower end elevations of the steel plates at two sides of the steel ring beam, and the top elevations of the H-shaped steel and the steel angle column are the same as the bottom elevations of the steel plates at the lower side of the steel ring beam;
taking a conventional push pipe working well with the plane size of 3.5m by 6.0m as an example, the length of a long-side well wall without opening a hole is 6.0m, and the length of a short-side well wall with opening a hole is 3.5 m. For the long-side well wall, H-shaped steel 21 is uniformly distributed to configure an A-shaped steel plate 22; for the short-side well wall, the size of a circular hole of the C-shaped steel plate 232 is controlled by increasing the outer diameter of a pipeline to be constructed by 200mm, not less than 1H-shaped steel 21 is respectively distributed on two sides of the circular hole, the A-shaped steel plate 22 is configured, and the widths of the A-shaped steel plate 22 and the C-shaped steel plate 232 are preferably coordinated and meet the modulus.
2) Leveling the floor of the well body, and cleaning underground obstacles at the steel blade foot 3;
3) welding the segmented steel blade legs 3 conveyed from a factory into a whole at the well body position, and filling sand and stones into the cavities of the steel blade legs 3;
4) inserting the steel corner post 1 and the H-shaped steel 21 into the steel blade foot 3, bolting the angle steel 11 of the steel corner post 1 with the adjacent H-shaped steel 21 by using the steel screw 52, and bolting the A-shaped steel plate 22, the first B-shaped steel plate 231 (if needed), the C-shaped steel plate 232 (if needed) and the second B-shaped steel plate 233 (if needed) with the two adjacent groups of H-shaped steel 21 by using the steel screw 52 respectively to form the well wall 2 (the angle steel 11 of the steel corner post 1 can also be directly bolted with the A-shaped steel plate 22);
5) according to the sinking construction requirement, filling sand, stone or water into the inner part or the whole of the steel open caisson wall cavity; bricks are filled in the round holes surrounded by the C-shaped steel plates 232;
6) buckling the segmented steel ring beam 4 on the steel corner post 1 and the well wall 2, and then bolting the steel ring beam to form an integral steel ring beam;
7) and (5) performing open caisson operation, and digging soil to the bottom sealing concrete bottom surface by using mechanical equipment. The open caisson operation can adopt drainage sinking and non-drainage sinking modes according to specific geological conditions of a field of view, and the soil penetration depth of the steel open caisson is based on the standard that the position of a C-shaped steel plate 232 is matched with the elevation of a pipeline to be constructed; if the two directions of the open caisson need pipeline construction operation, controlling the buried depth of the open caisson by the elevation of the pipeline with deeper buried depth;
8) pouring the bottom sealing concrete, pouring a reinforced concrete bottom plate according to needs, or directly placing a steel plate on the bottom sealing concrete to form a steel bottom plate;
9) carrying out pipe jacking, pipe pulling and other trenchless pipeline construction operations on the reinforced concrete bottom plate (or the steel bottom plate);
10) after the pipeline construction operation is finished, removing the construction machinery and the steel bottom plate (if any) in the well, backfilling earthwork in the well, and building an inspection well required by the hydraulic engineering specialty if necessary; dismantling the steel screw 52 from bottom to top along with the earth backfilling;
11) and removing the steel ring beam 4 after the earthwork backfill is close to the ground, pulling out the A-shaped steel plate 22, the first B-shaped steel plate 231, the C-shaped steel plate 232 above the opening and the H-shaped steel 21 on the inner side and the outer side of the well wall 2 by using mechanical equipment, and then pulling out the steel corner post 1 to finish the construction.
The utility model discloses a modular assembly's notion, with steel construction open caisson component at the preparation processing of mill, job site ground equipment forms rigid structure, sink the open caisson target in place according to conventional open caisson construction technique, after the non-excavation construction of accomplishing the pipeline, the connecting piece of the steel open caisson wall of a well is demolishd to the backfill side of the side in the open caisson, extract the recovery on ground the steel component at last and recycle, thereby guaranteed that the work progress influences minimum, the risk is minimum to the surrounding environment, and envelope and permanent structure unite two into one, economic nature is good, high quality.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (5)
1. The utility model provides a recoverable combined steel construction open caisson which characterized in that: the open caisson comprises four steel corner columns (1) and four well walls (2), wherein the four steel corner columns (1) and the four well walls (2) are arranged pairwise and symmetrically, the well walls (2) are installed between every two adjacent steel corner columns (1), and the four steel corner columns (1) and the four well walls (2) are assembled to form the steel structure open caisson;
the cross section of the steel corner post (1) is square, and an angle steel (11) is welded at the joint of the steel corner post (1) and the well wall (2);
four wall of a well (2) includes many H shaped steel (21), multiunit A shaped steel board subassembly and at least a set of combination steel plate spare of taking the through-hole, every group including two A shaped steel board (22) in the A shaped steel board subassembly, including two combination steel board (23), many in the combination steel plate spare H shaped steel (21) set up between two adjacent steel corner post (1), angle steel (11) are connected with adjacent H shaped steel (21) edge of a wing, adjacent two equally divide between the both ends edge of a wing of H shaped steel (21) and do not be connected through A shaped steel board subassembly or combination steel plate spare.
2. The recyclable combined type steel structure open caisson according to claim 1, wherein: the steel corner post is characterized by further comprising a steel cutting edge (3), the bottom of the steel cutting edge (3) is in a wedge shape, an opening is formed in the hollow interior of the steel cutting edge (3) and in the top of the hollow interior of the steel cutting edge, a tie steel plate (31) is arranged between the side walls of the inner cavity of the steel cutting edge (3), and the steel corner post (1) and the H-shaped steel (21) are inserted into the inner cavity of the steel cutting edge (3) and located on the upper portion of the tie steel plate (31).
3. The recyclable combined type steel-structured open caisson according to claim 1 or 2, wherein: still include steel ring roof beam (4), and steel ring roof beam (4) are the rectangle shape, steel ring roof beam (4) cover is established at steel corner post (1) and wall of a well (2) top.
4. The recyclable combined type steel structure open caisson according to claim 1, wherein: the H-shaped steel (21) and the angle steel (11), the H-shaped steel (21) and the A-shaped steel plate assembly, and the H-shaped steel (21) and the combined steel plate (23) are bolted and fixed through a plurality of bolt assemblies (5);
the bolt assembly (5) comprises two nuts (51) and a steel screw (52);
the two nuts (51) are respectively welded on one side face, far away from each other, of the angle steel (11), and the steel screw (52) penetrates through the angle steel (11) and the H-shaped steel (21) and is bolted with the nuts (51);
the two nuts (51) are respectively welded on one side face, far away from each other, of the two A-shaped steel plates (22), and the steel screw (52) penetrates through the H-shaped steel (21) and the inner and outer A-shaped steel plates (22) and is bolted with the nuts (51);
the two nuts (51) are respectively welded on one side face, far away from each other, of the two combined steel plates (23), and the steel screw (52) penetrates through the H-shaped steel (21) and the inner and outer combined steel plates (23) and is bolted with the nuts.
5. The recyclable combined type steel structure open caisson according to claim 1, wherein: combination steel sheet (23) include a slice first B shaped steel board (231), two C shaped steel board (232) and a slice second B shaped steel board (233), two all set up the semicircle orifice of mutually supporting on C shaped steel board (232), from last down being first B shaped steel board (231), two C shaped steel board (232) and second B shaped steel board (233) in proper order during combination steel sheet (23) aggregate erection, and the semicircle orifice of two C shaped steel board (232) sets up relatively and forms the round hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121108842.0U CN215165760U (en) | 2021-05-21 | 2021-05-21 | Recoverable combined steel structure open caisson |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121108842.0U CN215165760U (en) | 2021-05-21 | 2021-05-21 | Recoverable combined steel structure open caisson |
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| Publication Number | Publication Date |
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| CN215165760U true CN215165760U (en) | 2021-12-14 |
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| CN202121108842.0U Active CN215165760U (en) | 2021-05-21 | 2021-05-21 | Recoverable combined steel structure open caisson |
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