CN111549796A - Support head for foundation pit and use method of support head - Google Patents
Support head for foundation pit and use method of support head Download PDFInfo
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- CN111549796A CN111549796A CN202010470884.2A CN202010470884A CN111549796A CN 111549796 A CN111549796 A CN 111549796A CN 202010470884 A CN202010470884 A CN 202010470884A CN 111549796 A CN111549796 A CN 111549796A
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- supporting
- support
- foundation pit
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
- E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Foundations (AREA)
Abstract
The invention discloses a supporting head for a foundation pit, which relates to the field of foundation pit supporting and comprises a supporting plate and a flexible connecting mechanism; support sleeves for connecting support rod pieces are respectively fixed at two ends of the support plate, and flexible connecting mechanisms are symmetrically arranged on the support plate; flexible coupling mechanism includes the double-pole pneumatic cylinder, the cylinder body of double-pole pneumatic cylinder runs through fixed the setting and is in the backup pad, the tip of the hydraulic stem at double-pole pneumatic cylinder both ends all is fixed with articulated seat, the other end of articulated seat all articulates there is the support pole setting, the other end of supporting the pole setting is fixed with the riser, one side of riser is fixed with the hoop of embracing that is used for the joint support member, the hydraulic stem at double-pole pneumatic cylinder both ends all overlaps and is equipped with deformation spring. The supporting head has a simple structure, is convenient to connect the rod pieces, has certain flexibility, and can reduce the probability of breakage of the rod pieces when supporting, thereby reducing accidents in foundation pit construction.
Description
Technical Field
The invention relates to the field of foundation pit support, in particular to a support head for a foundation pit and a use method of the support head.
Background
In large projects, no matter the building construction or the road construction, the foundation pit construction can be met. The foundation pit construction is a project foundation, namely 'the long and high building rises up flatly', the foundation is not firm, and the consequence is unimaginable. The foundation pit construction is a complex and long process, each process needs to be carefully and carefully checked and repeatedly confirmed until the process is qualified, and the next construction can be carried out. Meanwhile, when a foundation pit in a deep foundation pit or a soft soil area is excavated, a pile is required to be driven to support, in the existing foundation pit support, the soil around the foundation pit deforms to extrude the foundation pit support, the member bars of the support are easily broken, the foundation pit collapses, and especially, safety accidents are easily caused in rainy seasons.
Disclosure of Invention
The invention aims to provide a supporting head for a foundation pit and a use method of the supporting head.
The purpose of the invention is realized by the following technical scheme:
a supporting head for a foundation pit comprises a supporting plate and a flexible connecting mechanism; support sleeves for connecting support rod pieces are respectively fixed at two ends of the support plate, and flexible connecting mechanisms are symmetrically arranged on the support plate; flexible coupling mechanism includes the double-pole pneumatic cylinder, the cylinder body of double-pole pneumatic cylinder runs through the setting in the backup pad, and with backup pad fixed connection, the tip of the hydraulic stem at double-pole pneumatic cylinder both ends all is fixed with articulated seat, the other end of articulated seat all articulates there is the support pole setting, the other end of supporting the pole setting is fixed with the riser, one side of riser is fixed with the hoop of embracing that is used for the joint support member, the hydraulic stem at double-pole pneumatic cylinder both ends all overlaps and is equipped with deformation spring, deformation spring's one end with the cylinder body of double-pole pneumatic cylinder is connected, deformation spring's the other end with articulated seat is close to the one end of supporting the pole setting and is connected.
Preferably, a plurality of reinforcing plates are uniformly distributed on the outer wall of the supporting sleeve, one side of each reinforcing plate is fixed to the outer wall of the supporting sleeve, and one end of each reinforcing plate is fixed to the supporting plate.
Preferably, the support sleeves are all arranged in a hollow shape, and the cavity of each support sleeve is used for penetrating through the support rod.
Preferably, the supporting sleeve is far away from the one end of backup pad all is equipped with convex connecting plate, the connecting plate centers on supporting sleeve is cyclic annular setting, just the equipartition all around of connecting plate is equipped with a plurality of threaded connection holes that are used for wearing to establish the bolt.
Preferably, the ring hoop is arc-shaped, and is connected with two of the same side the ring hoop is detachable through screw thread.
A use method of a support head for a foundation pit comprises the following steps:
s1: two supporting rod pieces for supporting the foundation pit are arranged in the supporting sleeve in a penetrating mode and abut against the bottom end of the inner wall of the supporting sleeve respectively, and the other ends of the two supporting rod pieces are connected with other connecting pieces;
s2: when the two support rod pieces are used for foundation pit construction, a flange matched with the connecting plate is designed and fixed on the outer wall of each support rod piece, and then the flange and the connecting plate are connected through bolts;
s3: respectively adjusting the supporting upright rods hinged on the hinge seats to enable the supporting rod pieces in the supporting sleeve to be arranged in a cavity formed by two ring hoops connected with the same side through the vertical plate;
s4: the two ring hoops on the same side are connected through the bolts, the supporting rod pieces are fixed in the cavity formed by the two ring hoops, and then the flexible connecting mechanism can play a role in protection when the supporting rod pieces are extruded or twisted under stress.
The invention has the beneficial effects that:
1. the supporting head is provided with a supporting plate and a flexible connecting mechanism, the supporting plate is used as a connecting platform of the flexible connecting mechanism, two ends of the supporting plate are respectively connected with a supporting sleeve and used for connecting an external supporting rod piece for supporting a foundation pit and jointly supporting the foundation pit, meanwhile, the flexible connecting mechanism comprises a double-rod hydraulic cylinder, the end parts of hydraulic rods at two ends of the double-rod hydraulic cylinder are respectively fixed with a hinged seat, the hinged seat is hinged with a supporting upright rod, the other end of the supporting upright rod is fixedly connected with a vertical plate, the vertical plate is connected with a ring hoop, the ring hoops of the flexible connecting mechanism symmetrically arranged at the same side fix the supporting rod piece in the two ring hoops, when the supporting rod piece is extruded and deformed or twisted and deformed by external force, deformation springs arranged on the hydraulic rods at two ends of the double-rod hydraulic cylinder can play good flexible, the extrusion or shearing damage is reduced, and the safety of the foundation pit construction process is further ensured. The supporting head has a simple structure, is convenient to connect the rod pieces, has certain flexibility, and can reduce the probability of breakage of the rod pieces when supporting, thereby reducing accidents in foundation pit construction.
2. The outer wall of the supporting sleeve is uniformly provided with a plurality of reinforcing plates for reinforcing the stress of the outer part of the supporting sleeve, so that the supporting sleeve is more stable and firm and is more stressed; the supporting sleeves are all arranged in a hollow shape, and the cavity of each supporting sleeve is used for penetrating through a supporting rod piece to stably limit the supporting rod piece; one end of each support sleeve, which is far away from the support plate, is provided with a convex connecting plate, and the support sleeves are annularly arranged and are movably detachably connected with a flange plate fixedly arranged on the support rod piece through bolts, so that the support rod pieces on the same side are stabilized again to avoid looseness; the ring staple bolt all is circular-arc setting, makes with two of one side encircle the shape looks adaptation that the hoop can be fine and support the member to in better will support the member and carry on spacingly, and can all dismantle the connection through the screw thread with two of one side ring staple bolts, the purpose is convenient to be dismantled, and the different support members that adapt to different diameters through bolt length, improve the environment of use greatly.
3. Based on the method used by the supporting head, firstly, two supporting rod pieces for supporting the foundation pit are arranged in the supporting sleeve in a penetrating way and respectively abut against the bottom end of the inner wall of the supporting sleeve, and the other ends of the two supporting rod pieces are connected with other connecting pieces; then, connecting the connecting plates by using a flange fixedly arranged on the outer wall of the support rod piece through bolts to further stably limit the support rod piece; then respectively adjusting the supporting upright rods hinged on the hinged seats, enabling the supporting rod pieces in the supporting sleeve to be arranged in a cavity formed by two ring hoops connected with the same side through the vertical plate, connecting the surrounding hoops of the flexible connecting mechanism through bolts, clamping the supporting rod pieces in the cavity formed by the two ring hoops on the same side, and further enabling the flexible connecting mechanism to play a role in protection when the supporting rod pieces are stressed to be extruded or twisted. The method can quickly connect the support head with the support rod piece, saves time and can be used.
Drawings
Fig. 1 is a schematic structural view of a support head for a foundation pit according to the present invention;
FIG. 2 is a schematic view of a connection structure of a support plate of a support head for a foundation pit according to the present invention;
FIG. 3 is a schematic view of a flexible connection mechanism of a support head for a foundation pit according to the present invention;
FIG. 4 is a schematic flow chart of a method for using a support head for a foundation pit according to the present invention;
in the figure, 1-support plate, 2-support sleeve, 3-double-rod hydraulic cylinder, 4-hinged seat, 5-support upright rod, 6-vertical plate, 7-ring hoop, 8-deformation spring, 11-reinforcing plate, 21-connecting plate and 22-threaded connecting hole.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1 to 3, a support head for a foundation pit comprises a support plate 1 and a flexible connection mechanism; two ends of the supporting plate 1 are respectively fixed with a supporting sleeve 2 for connecting a supporting rod piece, and the supporting plate 1 is symmetrically provided with flexible connecting mechanisms; flexible coupling mechanism includes two pole pneumatic cylinders 3, the cylinder body of two pole pneumatic cylinder 3 runs through the setting in backup pad 1, and with 1 fixed connection of backup pad, the tip of the hydraulic stem at 3 both ends of two pole pneumatic cylinder all is fixed with articulated seat 4, the other end of articulated seat 4 all articulates there is support pole setting 5, the other end of supporting pole setting 5 is fixed with riser 6, one side of riser 6 is fixed with the hoop 7 of embracing that is used for the joint support member, the hydraulic stem at 3 both ends of two pole pneumatic cylinder all overlaps and is equipped with deformation spring 8, deformation spring 8's one end is connected with the cylinder body of two pole pneumatic cylinder 3, deformation spring 8's the other end and articulated seat 4 are close to the one end of supporting pole setting 5 and are connected. The supporting head is provided with a supporting plate 1 and a flexible connecting mechanism, the supporting plate 1 is used as a connecting platform of the flexible connecting mechanism, two ends of the supporting plate 1 are respectively connected with a supporting sleeve 2 for connecting an external supporting rod piece for supporting a foundation pit and supporting the foundation pit together, meanwhile, the flexible connecting mechanism comprises a double-rod hydraulic cylinder 3, the end parts of hydraulic rods at two ends of the double-rod hydraulic cylinder 3 are respectively fixed with a hinged seat 4, the hinged seat 4 is hinged with a supporting upright rod 5, the other end of the supporting upright rod 5 is fixedly connected with a vertical plate 6, the vertical plate 6 is connected with a ring hoop 7, the ring hoops of the flexible connecting mechanism symmetrically arranged at the same side fix the supporting rod piece in the two ring hoops 7, when the supporting rod piece is extruded and deformed or twisted by external force, the deformation springs 8 arranged on the hydraulic rods at two ends of the double-rod hydraulic cylinder 3 can perform good flexible deformation, the supporting rod pieces are protected, extrusion or shearing damage is reduced, and safety of the foundation pit construction process is further guaranteed.
Furthermore, a plurality of reinforcing plates 11 are uniformly distributed on the outer wall of the support sleeve 2, one side of each reinforcing plate 11 is fixed with the outer wall of the support sleeve 2, and one end of each reinforcing plate 11 is fixed with the support plate 1 and used for reinforcing the stress of the outer part of the support sleeve 2, so that the support sleeve is more stable and firm, is more stressed and can stably limit the support rod; the supporting sleeves 2 are all arranged in a hollow shape, the cavity of each supporting sleeve 2 is used for penetrating a supporting rod piece, one end, far away from the supporting plate 1, of each supporting sleeve 2 is provided with a convex connecting plate 21, each connecting plate 21 is annularly arranged around the corresponding supporting sleeve 2, and a plurality of threaded connecting holes 22 for penetrating bolts are uniformly distributed on the periphery of each connecting plate 21, so that the supporting sleeves and the flange plates fixedly arranged on the supporting rod pieces are movably connected in a detachable mode through bolts, and the supporting rod pieces on the same side are stabilized again to avoid looseness; the ring hoop 7 is arc-shaped, so that two rings with the same side can be well matched with the shape of the support rod piece, the support rod piece is more limited, the two rings with the same side 7 are connected in a detachable mode through threads, the purpose is convenient to detach, the support rod pieces with different diameters can be adapted through different bolt lengths, and the use environment is greatly improved.
Further, in order to better use the support head, a method used by the support head when supporting the foundation pit is specifically described herein, such as a flow chart of the using method shown in fig. 4. The using method comprises the following steps:
s1: wear to establish in support sleeve 2 with two support member spare that are used for supporting the foundation ditch, two support member spare are the external connecting piece when supporting the foundation ditch and use, be with the supporting head supporting design use, so that can the high-speed joint, and two support member spares respectively at the inner wall bottom of support sleeve 2, make support member spare and support sleeve 2 closely counterbalance and lean on, reduce the gap, thereby increase this support sleeve 2's holding power, satisfy the requirement of construction, and other connecting pieces are connected to the other end of two support member spares, and then connect into a atress whole, guarantee to support the requirement of atress, also guarantee simultaneously can be safe use this support head.
S2: subsequently, the supporting rod pieces on the same side are connected with the connecting plate 21, in order to stabilize the supporting rod pieces, a flange plate matched with the connecting plate 21 is designed when the two supporting rod pieces are in foundation pit construction, the flange plate is fixed on the outer wall of each supporting rod piece and is a good connecting part, manufacturing and connection are facilitated, the flange plate is fixed at the position of each supporting rod piece, the flange plate can be just in contact with the connecting plate 21, one end of each supporting rod piece is just in contact with the bottom end of the inner wall of the supporting sleeve 2, measurement and calculation are needed in the design process, the use requirement on the site is met, the flange plate and the connecting plate 21 are connected through bolts, and the supporting rod pieces are further stabilized and limited.
S3: then the supporting upright rods 5 hinged on the hinge seats 4 are respectively adjusted, so that the supporting rod pieces in the supporting sleeves 2 are arranged in a cavity formed by two annular hoops 7 which are connected at the same side through the vertical plate 6; the hoop 7 is designed to be arc-shaped when being designed, so that two hoops 7 on the same side can be well matched with the support rod piece in shape, the support rod piece can be better connected, and force can be transmitted to the flexible connecting mechanism when the support rod piece is stressed.
S4: finally, two ring hoops 7 on the same side are connected through bolts, the supporting rod piece is fixed in a cavity formed by the two ring hoops 7, and then when the supporting rod piece is extruded or twisted under stress, the flexible connecting mechanism can play a role in protecting the supporting rod piece, a supporting stop of the supporting rod piece on the foundation pit is strengthened through the supporting head, and the possibility of collapse of the foundation pit is reduced.
The supporting head has a simple structure, is convenient to connect the rod pieces, has certain flexibility, and can reduce the probability of breakage of the rod pieces when supporting, thereby reducing accidents in foundation pit construction.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The supporting head for the foundation pit is characterized by comprising a supporting plate (1) and a flexible connecting mechanism;
two ends of the supporting plate (1) are respectively fixed with a supporting sleeve (2) for connecting a supporting rod piece, and the supporting plate (1) is symmetrically provided with flexible connecting mechanisms;
the flexible connecting mechanism comprises a double-rod hydraulic cylinder (3), the cylinder body of the double-rod hydraulic cylinder (3) is arranged on the supporting plate (1) in a penetrating way, and is fixedly connected with the supporting plate (1), the end parts of the hydraulic rods at the two ends of the double-rod hydraulic cylinder (3) are respectively fixed with a hinged seat (4), the other ends of the hinged seats (4) are hinged with supporting upright rods (5), the other ends of the supporting upright rods (5) are fixed with vertical plates (6), one side of the vertical plate (6) is fixed with a ring hoop (7) for connecting a support rod piece, the hydraulic rods at the two ends of the double-rod hydraulic cylinder (3) are sleeved with deformation springs (8), one end of the deformation spring (8) is connected with the cylinder body of the double-rod hydraulic cylinder (3), the other end of the deformation spring (8) is connected with one end, close to the supporting upright rod (5), of the hinged seat (4).
2. The support head for the foundation pit as claimed in claim 1, wherein a plurality of reinforcing plates (11) are uniformly distributed on the outer wall of the support sleeve (2), one side of each reinforcing plate (11) is fixed with the outer wall of the support sleeve (2), and one end of each reinforcing plate (11) is fixed with the support plate (1).
3. A support head for a foundation pit according to claim 1, wherein the support sleeves (2) are all hollow, and the cavity of the support sleeve (2) is used for penetrating a support rod.
4. The support head for the foundation pit according to claim 1, wherein one end of the support sleeve (2) far away from the support plate (1) is provided with a convex connecting plate (21), the connecting plate (21) is annularly arranged around the support sleeve (2), and a plurality of threaded connecting holes (22) for penetrating bolts are uniformly distributed around the connecting plate (21).
5. The support head for the foundation pit according to claim 1, wherein the ring hoops (7) are all arc-shaped, and the two ring hoops (7) on the same side are detachably connected through threads.
6. The use method of the support head for the foundation pit as claimed in any one of claims 1 to 5, comprising the steps of:
s1: two supporting rod pieces for supporting the foundation pit are arranged in the supporting sleeve (2) in a penetrating mode and abut against the bottom end of the inner wall of the supporting sleeve (2) respectively, and the other ends of the two supporting rod pieces are connected with other connecting pieces;
s2: when the two support rod pieces are used for foundation pit construction, a flange matched with the connecting plate (21) is designed, the flange is fixed on the outer wall of each support rod piece, and then the flange is connected with the connecting plate (21) through bolts;
s3: the supporting upright rods (5) hinged on the hinge seats (4) are respectively adjusted to enable the supporting rod pieces in the supporting sleeves (2) to be arranged in a cavity formed by two annular hoops (7) which are connected with each other through the vertical plates (6) at the same side;
s4: the two ring hoops (7) on the same side are connected through the bolts, the supporting rod pieces are fixed in the cavity formed by the two ring hoops (7), and then the flexible connecting mechanism can play a role in protection when the supporting rod pieces are stressed to be extruded or twisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470884.2A CN111549796B (en) | 2020-05-28 | 2020-05-28 | Support head for foundation pit and use method of support head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470884.2A CN111549796B (en) | 2020-05-28 | 2020-05-28 | Support head for foundation pit and use method of support head |
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| CN111549796A true CN111549796A (en) | 2020-08-18 |
| CN111549796B CN111549796B (en) | 2021-09-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751092A (en) * | 2022-05-20 | 2022-07-15 | 中国原子能科学研究院 | Supporting device arranged in vacuum device, vacuum device and vacuum system |
| CN114837196A (en) * | 2022-05-26 | 2022-08-02 | 中铁建设集团有限公司 | Active foundation pit supporting device and construction method thereof |
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| CN208328942U (en) * | 2018-04-03 | 2019-01-04 | 临沂大学 | A kind of underground garage deep foundation pit supporting structure |
| CN208870048U (en) * | 2018-08-30 | 2019-05-17 | 中国电建集团铁路建设有限公司 | A kind of foundation pit supporting construction of fender post coupling collar grid beam |
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| CN203361163U (en) * | 2013-06-28 | 2013-12-25 | 上海强劲地基工程股份有限公司 | Prestress steel support used for controlling differential displacement inside and outside foundation ditch enclosure wall |
| CN204849776U (en) * | 2015-07-10 | 2015-12-09 | 中煤第三建设（集团）有限责任公司 | Loose structure and bearing structure among bearing structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751092A (en) * | 2022-05-20 | 2022-07-15 | 中国原子能科学研究院 | Supporting device arranged in vacuum device, vacuum device and vacuum system |
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| CN114837196A (en) * | 2022-05-26 | 2022-08-02 | 中铁建设集团有限公司 | Active foundation pit supporting device and construction method thereof |
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| Publication number | Publication date |
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| CN111549796B (en) | 2021-09-24 |
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