CN213114660U - Multi-line three-dimensional crossing abnormal-shaped deep foundation pit supporting structure - Google Patents
Multi-line three-dimensional crossing abnormal-shaped deep foundation pit supporting structure Download PDFInfo
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- CN213114660U CN213114660U CN202021478273.4U CN202021478273U CN213114660U CN 213114660 U CN213114660 U CN 213114660U CN 202021478273 U CN202021478273 U CN 202021478273U CN 213114660 U CN213114660 U CN 213114660U
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Abstract
The utility model discloses a multi-line intercrossing abnormal shape deep basal pit supporting construction, including big foundation ditch and little foundation ditch, strut steel mesh layer and fender pile, reinforcement girder steel, concrete roof and concrete bottom plate fixed connection, the tip sliding connection of pillar has the support post, support the solid board and support tightly the laminating on strutting the steel mesh layer. The device is convenient for carry out effectual fender through strutting the steel mesh layer and supporting solid board and protecting the not hard up ground on the foundation ditch, through the slide, fixed slot and first steel spring, it supports solid post drive to support solid board and support the compaction tightly on strutting the steel mesh layer to be convenient for, the bank protection effort is strong, be favorable to having avoided the not hard up phenomenon of ground around the foundation ditch, through the silicon rubber seat, support steel ring and second steel spring, it is convenient for to carry out more powerful bradyseism to strutting the steel mesh layer to support the solid board, be favorable to prolonging the life who struts the steel mesh layer, further reinforcing is to the locking effect of ground around the foundation ditch, supporting construction's availability factor has been strengthened.
Description
Technical Field
The utility model belongs to the technical field of the building engineering construction, concretely relates to multi-line intercrossing heterotypic deep basal pit supporting construction.
Background
Multiple wire mesh planes, vertical surface intersections, overlaps and the like are inevitable in a busy or planned core plot of a city, and therefore, a plurality of special open cut foundation pits are also generated. The special-shaped foundation pit is complex in stress, stress concentration is easy to occur, construction is difficult and efficiency is low if support arrangement is improper, and even engineering accidents such as overlarge deformation, overturning, collapse and the like can be caused. Aiming at the abnormal foundation pit, the support system adopted at present mainly adopts a single system of a fender post (wall) and an inner support, and the support structure which is simple, economic and rapid in construction is necessary on the premise of ensuring the safety of the abnormal foundation pit of the soil-rock composite stratum.
Therefore, the publication number of CN207452911U discloses a multi-line three-dimensional crossing special-shaped deep foundation pit supporting structure, which comprises a foundation pit of an underground main structure, wherein the main structures of a plurality of lines are arranged in a staggered manner at the upper and lower positions or the left and right positions in the foundation pit; the foundation pit comprises a large foundation pit at the upper part and a small foundation pit at the lower part; the two sides of the large foundation pit are provided with enclosure walls, and the top of each enclosure wall is provided with a crown beam; one side of the small foundation pit is provided with a retaining wall, the same retaining wall is arranged at the side of the large foundation pit, and the other side of the small foundation pit is provided with a profile steel spray anchor combined retaining wall; the top of the small foundation pit is provided with a concrete slab support; and concrete supports or steel supports are vertically arranged in the foundation pit in a layered manner. The earthwork excavation and underground structure construction space is good, the problems of deviated holes and surrounding and line-cutting of pit-in-pit surrounding low walls (piles) in hard rock stratum pits are reduced, and the effects of retaining soil and retaining water can be achieved; be provided with the board between upper portion major structure and the enclosure wall and prop, play fine atress converting action, can guarantee foundation ditch safety.
The following disadvantages still remain: the foundation pit surface in vacant region between enclosure wall, shaped steel stand, concrete support and the steel shotcrete is not convenient for consolidate and enclose, and this regional fender protects the effect poorly promptly, appears not hard up landing of ground easily, and very big influence supporting construction's fastness influences its availability factor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multi-line intercrossing heterotypic deep basal pit supporting construction to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a multi-line three-dimensional crossing special-shaped deep foundation pit supporting structure comprises a large foundation pit and a small foundation pit, wherein fender piles are fixedly mounted on two sides of the large foundation pit, a steel beam support is fixedly connected between the tops of the fender piles through crown beams, a reinforcing steel support is fixedly connected between the fender piles, a concrete fixing plate support is fixedly connected to the bottom of the fender piles, a concrete top plate support is fixedly connected to the top of the small foundation pit, a concrete bottom plate support is fixedly connected to the bottom and the side wall of the small foundation pit, one end of the concrete fixing plate support is fixedly connected with the concrete bottom plate support on the side portion, a section steel upright is fixedly connected to the middle of the concrete fixing plate support, the section steel upright is fixed to the middle of the large foundation pit, a supporting steel net layer is arranged on the surface of the large foundation pit and the surface of the small foundation pit, the supporting steel net layer is fixedly connected with the fender piles, reinforcing steel beams, the supporting column is fixedly connected to the surface of the profile steel stand column, the end portion of the supporting column is connected with the abutting-fixing column in a sliding mode, the end portion of the abutting-fixing column is fixedly connected with the abutting-fixing plate, and the abutting-fixing plate abuts against and is attached to the supporting steel mesh layer.
Preferably, the pillar sets up with consolidating between the steel shotcrete mutually in the staggered way, the inside of pillar is equipped with and supports solid post looks accordant connection's fixed slot, support the bottom fixedly connected with slide of solid post, the first steel spring of fixedly connected with between the bottom of slide and fixed slot, the both ends of slide all the sliding connection run through to the both sides of pillar on, be equipped with the spacing groove with slide looks accordant connection on the lateral wall of pillar.
This setting is when supporting solid post and carry out elastic expansion, supports solid post this moment and slides and drive the slide and carry out the elastic extrusion to first steel spring along the fixed slot, it is spacing to the sliding distance of slide through the spacing groove, thereby effectively improved and supported the steadiness of connection structure between solid post and the pillar, be convenient for drive support solid post and carry out firm elastic support to supporting solid board, be convenient for then support the tight compaction of supporting of solid board fastening and on strutting the steel mesh layer, the bank protection effort is strong, be favorable to avoiding the not hard up phenomenon of ground around the foundation ditch.
Preferably, the pillar and the abutting plate are fixedly connected with a silicon rubber seat, a mounting groove is formed in the silicon rubber seat, a supporting steel ring is fixedly connected to the mounting groove, and a second steel spring is fixedly connected to the supporting steel ring.
This setting has effectively strengthened the pillar and has supported the steadiness of connection structure between the solid board, structural strength and the elastic force of silicon rubber seat have effectively been strengthened through supporting steel ring and second steel spring, thereby be convenient for strengthen to supporting solid board and strut the fastening effort between the steel stratum reticulare, make simultaneously to support solid board be convenient for carry out more powerful bradyseism to strutting the steel stratum reticulare and support, be favorable to the extension to strut the life on steel stratum reticulare, and then be convenient for further strengthen the bank protection effort by force, further strengthened the locking effect to ground around the foundation ditch.
Preferably, the middle part of the silicon rubber seat is provided with a guide hole in a penetrating manner, and the guide hole is in sliding connection with the abutting-fixing column in a matching manner.
This setting has effectively improved the stability of bearing the connection structure between solid post and the silicon rubber seat.
Preferably, the inner side of the abutting plate is fixedly connected with a carbon fiber wear-resistant layer.
The wear-resisting property of the abutting and fixing plate is enhanced, so that the abutting and fixing plate is firm and durable and has a good protection effect.
Preferably, a supporting steel support is fixedly connected between the concrete bottom plate support and the fender pile, the supporting steel support is arranged in a cross structure, and the surface of the supporting steel support is attached to the supporting steel net layer.
This setting is convenient for carry out the compaction location to the steel mesh layer of strutting of little foundation ditch, is favorable to the reinforcing to strut the structural strength of steel mesh layer, strengthens its bank protection effect then to this locking effort effect of ground around guaranteeing little foundation ditch.
Compared with the prior art, the utility model discloses a technological effect and advantage: the multi-line three-dimensional crossing special-shaped deep foundation pit supporting structure effectively enhances the structural strength and fastness of a large foundation pit and a small foundation pit through the matching action of the steel beam support, the reinforcing steel support, the supporting steel net layer, the profile steel stand column, the concrete fixing plate support, the concrete top plate support, the concrete bottom plate support, the supporting steel support and the supporting steel net layer, so that the supporting structure is firm and durable, the safety protection efficiency is high, in addition, the loose rock soil on the foundation pit can be effectively blocked and compacted through the supporting steel net layer and the supporting plate, in addition, through the matching action of the sliding plate, the fixed groove and the first steel spring, the supporting column can conveniently drive the supporting plate to tightly compact on the supporting steel net layer, the slope protection acting force is strong, the loosening phenomenon of the rock soil around the foundation pit can be favorably avoided, meanwhile, through the matching action of the silicon rubber seat, the mounting groove, the supporting steel ring and the second steel spring, the fastening acting force between the supporting plate and the supporting, it makes to support the solid board and is convenient for carry out more powerful bradyseism to strutting the steel mesh layer and support, is favorable to the extension to strut the life on steel mesh layer, and then is convenient for further strengthen the bank protection effort by force, has further strengthened the locking effect of moving to ground around the foundation ditch, has strengthened supporting construction's availability factor greatly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structural view of the profile steel column of the present invention;
fig. 3 is a schematic view of the profile steel column section structure of the present invention.
In the figure: 1. a large foundation pit; 2. a small foundation pit; 201. a concrete roof support; 202. a concrete floor support; 203. supporting and fixing a steel support; 3. a fender pile; 301. a steel beam support; 302. a crown beam; 303. reinforcing the steel support; 4. supporting a steel mesh layer; 5. a section steel upright post; 501. a pillar; 502. fixing grooves; 503. a limiting groove; 504. supporting and fixing the column; 505. a slide plate; 506. a first steel spring; 6. a silicone rubber seat; 601. a guide hole; 602. mounting grooves; 603. supporting a steel ring; 604. a second steel spring; 7. abutting and fixing the plate; 701. a carbon fiber wear layer; 8. concrete fixing plate props.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, a multi-line three-dimensional crossing special-shaped deep foundation pit supporting structure comprises a large foundation pit 1 and a small foundation pit 2, fender piles 3 are fixedly installed on two sides of the large foundation pit 1, steel beam supports 301 are fixedly connected between the tops of the fender piles 3 through crown beams 302, reinforcing steel supports 303 are fixedly connected between the fender piles 3, a concrete fixing plate support 8 is fixedly connected to the bottom of the fender pile 3, a concrete top plate support 201 is fixedly connected to the top of the small foundation pit 2, a concrete bottom plate support 202 is fixedly connected to the bottom and the side wall of the small foundation pit 2, one end of the concrete fixing plate support 8 is fixedly connected with the concrete bottom plate support 202 on the side, a steel section column 5 is fixedly connected to the middle of the concrete fixing plate support 8, the steel section column 5 is fixed to the middle of the large foundation pit 1, and steel mesh layers 4 are arranged on the surfaces of the large foundation pit 1 and the small foundation pit 2, the supporting steel mesh layer 4 is fixedly connected with the enclosure pile 3, the reinforced steel beam, the concrete top plate and the concrete bottom plate, the surface of the section steel upright post 5 is fixedly connected with a supporting post 501, the end part of the supporting post 501 is slidably connected with a supporting and fixing post 504, the end part of the supporting and fixing post 504 is fixedly connected with a supporting and fixing plate 7, and the supporting and fixing plate 7 is tightly attached to the supporting steel mesh layer 4.
The supporting columns 501 and the reinforcing steel struts 303 are arranged in a staggered mode, fixing grooves 502 matched and connected with the abutting-fixing columns 504 are formed in the supporting columns 501, sliding plates 505 are fixedly connected to the bottoms of the abutting-fixing columns 504, first steel springs 506 are fixedly connected between the sliding plates 505 and the bottoms of the fixing grooves 502, two ends of each sliding plate 505 are connected to two sides of each supporting column 501 in a sliding mode, and limiting grooves 503 matched and connected with the sliding plates 505 are formed in the side walls of the supporting columns 501; when supporting solid post 504 and carry out elastic expansion, support solid post 504 and slide and drive slide 505 and carry out the elastic extrusion to first steel spring 506 along fixed slot 502 this moment, it is spacing to slide distance of slide 505 through spacing groove 503, thereby effectively improved support the steadiness of connection structure between solid post 504 and pillar 501, be convenient for drive support solid post 504 to support solid board 7 and carry out the elastic support that stabilizes, be convenient for then support the tight compaction of support of solid board 7 fastening on strutting steel mesh layer 4, the bank protection effort is strong, be favorable to avoiding the not hard up phenomenon of ground around the foundation ditch.
A silicone rubber seat 6 is fixedly connected between the strut 501 and the abutting plate 7, an installation groove 602 is formed in the silicone rubber seat 6, a support steel ring 603 is fixedly connected to the installation groove 602, and a second steel spring 604 is fixedly connected to the interior of the support steel ring 603; effectively strengthened pillar 501 and supported the steadiness of connection structure between the solid board 7, effectively strengthened the structural strength and the elastic force of silicon rubber seat 6 through supporting steel ring 603 and second steel spring 604, thereby be convenient for strengthen the fastening effort to supporting between solid board 7 and the strut steel stratum reticulare 4, make simultaneously to support solid board 7 be convenient for carry out more powerful bradyseism to strutting steel stratum reticulare 4 and support, be favorable to the extension to strut the life of steel stratum reticulare 4, and then it is strong to be convenient for further strengthen the bank protection effort, further strengthened the locking effect of rock around the foundation ditch.
A guide hole 601 penetrates through the middle part of the silicone rubber seat 6, and the guide hole 601 is matched and slidably connected with the abutting and fixing column 504; the stability of the connection structure between the support column 504 and the silicone rubber seat 6 is effectively improved.
A carbon fiber wear-resistant layer 701 is fixedly connected to the inner side of the abutting plate 7; the wear-resisting property of the abutting and fixing plate 7 is enhanced, so that the abutting and fixing plate is firm and durable and has a good protection effect.
A supporting steel support 203 is fixedly connected between the concrete bottom plate support 202 and the fender pile 3, the supporting steel support 203 is arranged in a cross structure, and the surface of the supporting steel support 203 is attached to a supporting steel mesh layer 4; be convenient for carry out the compaction location to the steel mesh layer 4 of strutting of little foundation ditch 2, be favorable to the reinforcing to strut the structural strength of steel mesh layer 4, strengthen its bank protection effect then to this locking effort effect of ground around guaranteeing little foundation ditch 2.
Specifically, when in use, the structural strength and the fastness of the large foundation pit 1 and the small foundation pit 2 are effectively enhanced through the matching action of the steel beam support 301, the reinforcing steel support 303, the supporting steel mesh layer 4, the steel section upright post 5, the concrete fixing plate support 8, the concrete top plate support 201, the concrete bottom plate support 202, the supporting steel support 203 and the supporting steel mesh layer 4, so that the supporting structure is firm and durable, the safety protection efficiency is high, in addition, the loose rock soil on the foundation pit can be effectively blocked and compacted through the supporting steel mesh layer 4 and the supporting plate 7, in addition, through the matching action of the sliding plate 505, the fixing groove 502 and the first steel spring 506, the supporting plate 504 can be conveniently driven to be tightly compacted on the supporting steel mesh layer 4 through the supporting steel mesh layer 4, the slope protection acting force is strong, the loosening phenomenon of the rock soil around the foundation pit can be favorably avoided, meanwhile, through the matching action of the silicon rubber seat 6, the mounting groove 602, the supporting steel ring 603 and the, the reinforcing is convenient for to the fastening effort between solid board 7 and the steel mesh layer 4 of strutting, and it makes solid board 7 be convenient for carry out more powerful bradyseism to strutting steel mesh layer 4 and supports, is favorable to the extension to strut the life of steel mesh layer 4, and then is convenient for further strengthen the bank protection effort strong, has further strengthened the locking effect to ground around the foundation ditch not hard up, has strengthened supporting construction's availability factor greatly.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a multi-line intercrossing heterotypic deep basal pit supporting construction, includes big foundation ditch (1) and little foundation ditch (2), its characterized in that: the concrete foundation pit supporting structure is characterized in that fender piles (3) are fixedly mounted on two sides of a large foundation pit (1), a steel beam support (301) is fixedly connected between the tops of the fender piles (3) through a top beam (302), a reinforcing steel support (303) is fixedly connected between the fender piles (3), a concrete fixing plate support (8) is fixedly connected to the bottom of the fender piles (3), a concrete top plate support (201) is fixedly connected to the top of the small foundation pit (2), a concrete bottom plate support (202) is fixedly connected to the bottom and the side wall of the small foundation pit (2), one end of the concrete fixing plate support (8) is fixedly connected with the concrete bottom plate support (202) on the side portion, a steel section column (5) is fixedly connected to the middle of the concrete fixing plate support (8), the steel section column (5) is fixed to the middle of the large foundation pit (1), and a steel support net layer (4) is arranged on the surfaces of the large foundation pit (1) and the small foundation, support steel mesh layer (4) and fender pile (3), consolidate girder steel, concrete roof and concrete bottom plate fixed connection, the fixed connection has pillar (501) on the surface of shaped steel stand (5), the tip sliding connection of pillar (501) has and supports solid post (504), the tip fixed connection who supports solid post (504) supports solid board (7), support solid board (7) and support the laminating tightly on supporting steel mesh layer (4).
2. The multi-line vertical crossing special-shaped deep foundation pit supporting structure as claimed in claim 1, wherein: the utility model discloses a supporting column, including pillar (501) and reinforcing steel support (303), the inside of pillar (501) is equipped with and supports solid post (504) looks accordant connection's fixed slot (502), the bottom fixedly connected with slide plate (505) of supporting solid post (504), first steel spring (506) of fixedly connected with between the bottom of slide plate (505) and fixed slot (502), the both ends of slide plate (505) are all the sliding connection and run through to the both sides of pillar (501) on, be equipped with spacing groove (503) with slide plate (505) looks accordant connection on the lateral wall of pillar (501).
3. The multi-line vertical crossing special-shaped deep foundation pit supporting structure as claimed in claim 1, wherein: pillar (501) with support fixedly connected with silicon rubber seat (6) between solid board (7), the inside of silicon rubber seat (6) is equipped with mounting groove (602), fixedly connected with supports steel ring (603) on mounting groove (602), support inside fixedly connected with second steel spring (604) of steel ring (603).
4. The multi-line vertical crossing special-shaped deep foundation pit supporting structure as claimed in claim 1, wherein: the middle part of the silicon rubber seat (6) is provided with a guide hole (601) in a penetrating mode, and the guide hole (601) is connected with the abutting-fixing column (504) in a sliding mode in a matching mode.
5. The multi-line vertical crossing special-shaped deep foundation pit supporting structure as claimed in claim 1, wherein: the inner side of the abutting and fixing plate (7) is fixedly connected with a carbon fiber wear-resistant layer (701).
6. The multi-line vertical crossing special-shaped deep foundation pit supporting structure as claimed in claim 1, wherein: fixedly connected with props solid steel shotcrete (203) between concrete bottom plate props (202) and fender pile (3), prop solid steel shotcrete (203) and be the setting of cross structure, the surface of propping solid steel shotcrete (203) is laminated with supporting steel net layer (4) mutually.
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| CN202021478273.4U CN213114660U (en) | 2020-07-24 | 2020-07-24 | Multi-line three-dimensional crossing abnormal-shaped deep foundation pit supporting structure |
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| CN202021478273.4U CN213114660U (en) | 2020-07-24 | 2020-07-24 | Multi-line three-dimensional crossing abnormal-shaped deep foundation pit supporting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396056A (en) * | 2022-02-08 | 2022-04-26 | 辽宁工程技术大学 | Protective structure for geotechnical engineering foundation pit reinforcement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396056A (en) * | 2022-02-08 | 2022-04-26 | 辽宁工程技术大学 | Protective structure for geotechnical engineering foundation pit reinforcement |
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