CN212175808U - Parallel steel supporting structure - Google Patents
Parallel steel supporting structure Download PDFInfo
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- CN212175808U CN212175808U CN202020478193.2U CN202020478193U CN212175808U CN 212175808 U CN212175808 U CN 212175808U CN 202020478193 U CN202020478193 U CN 202020478193U CN 212175808 U CN212175808 U CN 212175808U
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- foundation pit
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- parallel steel
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Abstract
A parallel steel supporting structure is used for supporting a foundation pit and comprises a bottom fixing piece, a connecting piece and a plurality of supporting groups, wherein each supporting group comprises two telescopic pieces and a supporting rod, one ends of the two telescopic pieces are respectively fixed at two ends of the supporting rod, the other ends of the two telescopic pieces are respectively fixed on two opposite side walls of the foundation pit, and the telescopic pieces can be stretched; the plurality of support groups are arranged at intervals along a first direction and are connected through connecting pieces; the number of the bottom fixing pieces is multiple, the bottom fixing pieces are fixed at the bottom of the foundation pit, each supporting group is erected on at least one bottom fixing piece, and the first direction is parallel to the bottom surface of the foundation pit and perpendicular to the extending direction of the supporting groups; the support structure can effectively solve the problem that the parallel steel support structure in the prior art can not be applied to a large-span foundation pit.
Description
Technical Field
The utility model belongs to the technical field of the excavation supporting engineering construction and specifically relates to a parallelly connected steel bearing structure is related to.
Background
The foundation pit support is a measure for supporting, reinforcing and protecting the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit. In deep foundation pit engineering of high-rise buildings and subway construction, most of the deep foundation pit engineering is excavated in cities, various structures such as traffic main roads, built buildings or pipelines and the like usually exist around the foundation pit, and the safe use of the structures around the foundation pit is protected, so that the foundation pit support becomes an important content for excavation of the foundation pit. The existing foundation pit supporting system in the soft soil area comprises a concrete support and a steel support. The steel support has the advantages of environmental protection, high construction efficiency, reusability and the like, and is more applied.
However, as the scale of foundation pit engineering is larger and larger, the supporting length is increased, the existing supporting structure cannot adapt to a large-span foundation pit, the foundation pit is often only separated by the existing supporting structure during design, and a partition wall is additionally arranged, so that the construction progress is influenced, a large amount of building waste is generated, and the like.
Therefore, it is necessary to provide a support structure suitable for a large-span foundation pit.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a parallel steel supporting structure, which can effectively solve the problem that the parallel steel supporting structure in the prior art cannot be applied to a large-span foundation pit.
In order to achieve the above and other related objects, the present invention provides a parallel steel supporting structure for supporting a foundation pit, wherein the parallel steel supporting structure comprises a bottom fixing member, a connecting member and a plurality of supporting groups, each supporting group comprises two telescopic members and a supporting rod, one end of each of the two telescopic members is fixed to two ends of the supporting rod, and the other end of each of the two telescopic members is fixed to two opposite sidewalls of the foundation pit, so that the two opposite sidewalls of the foundation pit are supported by the two ends of the supporting group, and the telescopic members can be extended and retracted; the plurality of support groups are arranged at intervals along a first direction and are connected through the connecting piece; the number of the bottom fixing pieces is multiple, the bottom fixing pieces are fixed at the bottom of a foundation pit, each support group is erected on at least one bottom fixing piece, and the first direction is parallel to the bottom surface of the foundation pit and perpendicular to the extending direction of the support groups;
preferably, the foundation pit support structure further comprises two horizontal support structures, the two horizontal support structures are respectively erected on the two opposite side walls of the foundation pit and used for fixing the two side walls of the foundation pit, and two ends of the support group are respectively fixed on the corresponding horizontal support structure.
Preferably, the horizontal support framework is a steel purlin.
Preferably, the bracing piece divide into the multistage, the multistage be detachable between the bracing piece and connect.
Preferably, the detachable connection is a flanged connection.
Preferably, the supporting rod is divided into two sections, namely a first supporting rod and a second supporting rod, the first supporting rod and the second supporting rod are connected through a transition piece, and the transition pieces can be connected through the connecting piece along a first direction, so that connection among a plurality of supporting groups is realized.
Preferably, the transition piece is a fixed six-way, the connecting piece is a connecting rod, and two ends of the connecting rod are connected with the two fixed six-way flanges.
Preferably, the number of support groups is two.
Preferably, the telescopic member is an oil cylinder.
Preferably, the parallel steel support structure is used for a foundation pit with a span of more than 30 meters.
To sum up, the utility model provides a parallelly connected steel bearing structure includes the extensible member of a plurality of middle part steel node and a plurality of and foundation ditch lateral wall effect, and this parallelly connected steel bearing structure uses middle part steel node as the reaction point, can adjust the displacement deformation of foundation ditch both sides simultaneously. The steel support fixing node replaces the intermediate wall, so that engineering materials and time for construction of a concrete support system and the intermediate wall are saved, and the steel support fixing node can be applied to support systems of various large-span foundation pits; in addition, the middle steel node adopts a detachable structure, the span of the whole parallel steel supporting structure can be adjusted, and the detachable parallel steel supporting structure is applied to foundation pits with different spans and has strong universality; finally, due to the existence of the telescopic piece, telescopic adjustment can be carried out, the universality of the parallel steel supporting structure can be improved, prestress can be applied to the side wall of the foundation pit during extension, and the stability of the side wall of the foundation pit is improved.
Drawings
Fig. 1 is a schematic view of a parallel steel support structure provided in an embodiment of the present invention.
Fig. 2 is a schematic view of a parallel steel supporting structure provided by the second embodiment of the present invention.
Wherein the reference numerals are as follows:
10-side wall of a foundation pit, 20-steel surrounding purlin, 30-supporting steel pipes, 31-first supporting steel pipes, 32-second supporting steel pipes, 40-oil cylinder, 50-loose four-way, 60-first connecting rod, 61-second connecting rod, 70-fixed six-way and 80-bottom fixing piece.
Detailed Description
The utility model discloses a core thought is the parallelly connected steel bearing structure who adopts both ends servo, because generally adopt the mode that sets up partition wall segmentation support to the large-span foundation ditch among the prior art, this kind of method both can influence the construction progress, can produce a large amount of building rubbish again, so-called large-span foundation ditch generally indicates that the span is greater than 30 meters's foundation ditch. The reason for setting up the partition wall is because the crooked phenomenon of steel pipe will take place for the overlength of steel pipe when not setting up the direct integral bracing of partition wall, and this both ends servo's parallelly connected steel bearing structure adopts the structure that parallelly connected steel supported, has avoided producing the steel pipe crooked under the condition of integral bracing. And because prior art generally adopts one end servo system, need set up the bottom mounting to the whole support of large-span foundation ditch for place steel bearing structure, one end servo system will produce side thrust to the bottom mounting, for avoiding the influence of side thrust to the bottom mounting, this two ends servo system's parallelly connected steel bearing structure adopts the setting of both ends servo system, install servo system promptly at steel bearing structure's both ends, for example the hydro-cylinder, make the servo system at both ends of adjusting simultaneously when the foundation ditch changes, make the power of production offset on steel bearing structure, thereby do not make bottom mounting atress.
The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example one
Fig. 1 is a schematic view of a parallel steel supporting structure according to an embodiment of the present invention, referring to fig. 1, the parallel steel supporting structure according to the embodiment includes a steel purlin 20, a supporting steel pipe 30, an oil cylinder 40, a movable cross 50, a first connecting rod 60, and a bottom fixing member 80. The two steel purlins 20 are erected on two opposite foundation pit side walls 10 of the foundation pit respectively and used for fixing the foundation pit side walls 10; one end of each oil cylinder 40 is fixed on the steel purlin 20, the other end of each oil cylinder is fixed on the corresponding supporting steel pipe 30, one supporting steel pipe 30 and the two oil cylinders 40 form a supporting group, the movable four-way joint 50 is sleeved on the corresponding supporting steel pipe 30, the two movable four-way joints 50 are connected through flanges through the first connecting steel pipe 60, and the two supporting groups are connected in parallel; two bottom fixtures 80 are fixed at the bottom of the foundation pit, and two parallel support groups are erected on the two bottom fixtures 80.
It should be understood by those skilled in the art that the servo system of the present invention is not limited to the oil cylinder, and can be any device capable of extending and fixing; it should be understood by those skilled in the art that the present invention is not limited to two sets of support groups formed by one support steel tube 30 and two oil cylinders 40, and the connection structure formed by two movable cross joints 50 and the first connection steel tube 60 is not limited to this structure, and the number is not limited to 4, and the number of the bottom fixing members 80 is not limited to 2, and these can be any number and any structure capable of realizing technical effects.
During specific implementation, the steel purlins 20 are installed on the two corresponding foundation pit side walls 10, then the oil cylinders 40 are installed at selected positions correspondingly, the length of the supporting steel pipe 30 is selected according to the span of the foundation pit, the movable cross 50 is sleeved after selection, the first connecting steel pipe 60 is installed, parallel connection is achieved, finally the two ends are installed on the oil cylinders 40, the bottom fixing pieces 80 are erected according to the height, and the fact that the whole supporting framework is stressed by the bottom of the foundation pit is achieved. The oil cylinders 40 at the two ends can be simultaneously opened, so that the oil cylinders 40 extend to ensure the supporting force, and then the oil cylinders 40 can be adjusted according to the change of the foundation pit.
Example two
Fig. 2 is a schematic view of a parallel steel supporting structure provided by the second embodiment of the present invention, referring to fig. 2, the parallel steel supporting structure of the present embodiment includes a steel surrounding purlin 20, a supporting steel pipe 30, an oil cylinder 40, a first connecting rod 60 of a movable cross 50, a second connecting steel pipe 61, a fixed six-way pipe 70 and a bottom fixing member 80, the supporting steel pipe 30 is divided into two sections, namely a first supporting steel pipe 31 and a second supporting steel pipe 32. The two steel purlins 20 are erected on two opposite foundation pit side walls 10 of the foundation pit respectively and used for fixing the foundation pit side walls 10; one end of the oil cylinder 40 is fixed on the steel purlin 20, the other end of the oil cylinder is fixed at one end of the first supporting steel pipe 31 and one end of the second supporting steel pipe 32, and the other end of the first supporting steel pipe 31 and the other end of the second supporting steel pipe 32 are in flange connection through a fixed six-way pipe 70; the fixed six-way pipe 70 is provided with two connecting ports along the vertical direction of the supporting steel pipes, and the connecting ports are connected through flanges of a second connecting steel pipe 61, so that the two groups of supporting steel pipes are connected in parallel; in order to make the parallel connection effect better, the first support steel pipe 31 and the second support steel pipe 32 are respectively sleeved with the movable cross 50 and are connected with each other through a first connecting steel pipe 60; 3 bottom fixings 80 are fixed at the bottom of the foundation pit, the parallel steel supporting structure is erected on the 3 bottom fixings 80, and the first supporting steel pipe 31, the second supporting steel pipe 32 and the fixed six-way pipe 70 are respectively erected on one bottom fixing 80.
Because this parallel steel bearing structure is when being applied to the large-span foundation ditch that the span is greater than 30 meters, required support steel pipe 30 will be very long, will cause the difficulty in the handling, consequently above-mentioned embodiment will support steel pipe 30 and divide into two sections, and first support steel pipe 31 and second support steel pipe 32 are through fixed six-way 70 flange joint, install when using, can dismantle the transport after during the transport for the length of device reduces greatly, the transport of being convenient for. It should be understood by those skilled in the art that the present embodiment is to divide the supporting steel tube 30 into two sections, but the present invention is not limited to two sections, and can be any multi-section, as long as the technical effect can be achieved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (10)
1. A parallel steel supporting structure is used for supporting a foundation pit and is characterized by comprising a bottom fixing piece, a connecting piece and a plurality of supporting groups,
each support group comprises two telescopic pieces and a support rod, one ends of the two telescopic pieces are respectively fixed at two ends of the support rod, and the other ends of the two telescopic pieces are respectively fixed on two opposite side walls of the foundation pit, so that the two opposite side walls of the foundation pit are supported by two ends of the support group, and the telescopic pieces can be stretched;
the plurality of support groups are arranged at intervals along a first direction and are connected through the connecting piece;
the number of the bottom fixing pieces is multiple, the bottom fixing pieces are fixed to the bottom of a foundation pit, each supporting group is erected on at least one bottom fixing piece, and the first direction is parallel to the bottom surface of the foundation pit and perpendicular to the extending direction of the supporting groups.
2. The parallel steel support structure of claim 1, further comprising two horizontal support structures, wherein the two horizontal support structures are respectively erected on two opposite side walls of the foundation pit and used for fixing the two side walls of the foundation pit, and two ends of the support group are respectively fixed on one corresponding horizontal support structure.
3. The parallel steel support structure of claim 2, wherein the horizontal support structure is a steel purlin.
4. The parallel steel support structure of claim 1, wherein said support rods are divided into a plurality of sections, and said support rods are detachably connected to each other.
5. The parallel steel support structure of claim 4, wherein the detachable connection is a flanged connection.
6. The parallel steel support structure of claim 5, wherein said support bar is divided into two segments, a first support bar and a second support bar, said first support bar and said second support bar are connected by a transition piece, said transition pieces are connected by said connecting piece along a first direction, so as to realize the connection between a plurality of said support groups.
7. The parallel steel support structure of claim 6, wherein the transition piece is a fixed six-way, the connecting piece is a connecting rod, and both ends of the connecting rod are connected with two fixed six-way flanges.
8. The parallel steel support structure of claim 7, wherein the number of support groups is two.
9. The parallel steel support structure of any one of claims 1 to 8, wherein the telescopic member is a cylinder.
10. The parallel steel support structure of any one of claims 1 to 8, wherein the parallel steel support structure is used for a foundation pit spanning more than 30 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478193.2U CN212175808U (en) | 2020-04-03 | 2020-04-03 | Parallel steel supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478193.2U CN212175808U (en) | 2020-04-03 | 2020-04-03 | Parallel steel supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN212175808U true CN212175808U (en) | 2020-12-18 |
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| CN202020478193.2U Active CN212175808U (en) | 2020-04-03 | 2020-04-03 | Parallel steel supporting structure |
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| CN (1) | CN212175808U (en) |
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2020
- 2020-04-03 CN CN202020478193.2U patent/CN212175808U/en active Active
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