CN213448496U - Foundation pit supporting structure - Google Patents
Foundation pit supporting structure Download PDFInfo
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- CN213448496U CN213448496U CN202021425964.8U CN202021425964U CN213448496U CN 213448496 U CN213448496 U CN 213448496U CN 202021425964 U CN202021425964 U CN 202021425964U CN 213448496 U CN213448496 U CN 213448496U
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Abstract
The utility model relates to a supporting construction of foundation ditch, it relates to the technical field of excavation supporting, including the bottom plate that is fixed in the foundation ditch bottom, the bottom plate mounting has the backup pad, the backup pad is equipped with a backplate towards the one side of foundation ditch lateral wall, prop up the backplate with be equipped with the connecting rod between the backup pad, the one end fixed connection of connecting rod in prop up the backplate, the other end of connecting rod slides and inserts and locates the side of backup pad, the coaxial cover in the outside of connecting rod is equipped with the spring, the spring is located prop up the backplate with between the backup pad. The utility model discloses be difficult for making the supporting plate impaired because of rigid extrusion and collision, improve life.
Description
Technical Field
The utility model belongs to the technical field of the technique of excavation supporting and specifically relates to a excavation supporting construction is related to.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. The foundation pit support is a retaining, reinforcing and protecting measure adopted for 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.
Chinese patent with publication number CN208486273U discloses a supporting construction of foundation ditch, including strutting the bottom plate, strutting the upper surface left end fixed mounting of bottom plate has the backup pad, the upper surface of backup pad articulates there is the support riser, the right surface of strutting the riser articulates there is first bracing piece, the first double-screw bolt of lower extreme fixedly connected with of first bracing piece, the lower extreme of first double-screw bolt articulates there is the telescopic link, the lower extreme of telescopic link articulates there is the second double-screw bolt, the lower extreme fixedly connected with second bracing piece of second double-screw bolt, the lower extreme of second bracing piece articulates in strutting the upper surface of bottom plate, the lateral wall spiro union of first double-screw bolt has the swivel nut, the lower extreme spiro union of swivel nut is in the lateral wall of second double-screw bolt.
The above prior art solutions have the following drawbacks: the whole foundation pit supporting structure is rigid, and rigid extrusion and collision are performed between the side wall of the foundation pit and the supporting vertical plate, so that the supporting vertical plate is easy to damage, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a supporting construction of foundation ditch cushions the supporting plate, is difficult for taking place impairedly because of rigid extrusion and collision, has prolonged life.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a foundation pit supporting structure, is including being fixed in the bottom plate of foundation ditch bottom, the backup pad is installed to the bottom plate, the backup pad is equipped with a backplate towards the one side of foundation ditch lateral wall, prop up the backplate with be equipped with the connecting rod between the backup pad, the one end fixed connection of connecting rod in prop up the backplate, the other end of connecting rod slides and inserts and locate the side of backup pad, the coaxial cover in the outside of connecting rod is equipped with the spring, the spring is located prop up the backplate with between the backup pad.
By adopting the technical scheme, the connecting rod is connected with the supporting and protecting plate, the supporting and protecting plate is abutted against the side wall of the foundation pit, on one hand, the elastic force generated by the compression of the spring enables the supporting and protecting plate to be abutted against the side wall of the foundation pit, and the supporting and protecting effect is improved; on the other hand, the spring is used for buffering between the supporting plate and the supporting plate, so that the supporting plate is not easy to damage due to rigid extrusion and collision, and the service life is prolonged. The connecting rod has the effect of radial support and axial direction to the spring, makes the difficult condition of buckling that takes place of spring at the in-process of deformation, has promoted the effect of supporting tightly and buffering of spring.
The present invention may be further configured in a preferred embodiment as: the supporting plate is characterized in that a buffer groove is formed in one surface, facing the supporting plate, of the supporting plate, the end portion of the connecting rod is slidably inserted into the buffer groove, an elastic buffer is arranged in the buffer groove, and the elastic buffer is located between the end portion of the connecting rod and the inner bottom of the buffer groove.
Through adopting above-mentioned technical scheme, the elastic buffer thing carries out elastic buffer between the tip of connecting rod and the interior bottom of dashpot, with the spring cooperation, further slows down the rigidity extrusion.
The present invention may be further configured in a preferred embodiment as: the connecting rod is inserted and located the tip in the buffer slot is equipped with the connecting block, the cross sectional dimension of connecting block is greater than the cross sectional dimension of connecting rod, the connecting block along the axial sliding nestification of connecting rod in the buffer slot.
Through adopting above-mentioned technical scheme, the cross sectional dimension of connecting block is greater than the cross sectional dimension of connecting rod, has increased the area of contact between the tip of connecting rod and the elastic buffer thing, has improved the effect of the buffering of elastic buffer thing.
The present invention may be further configured in a preferred embodiment as: the connecting rod is arranged on the supporting plate in a penetrating mode, the connecting block is located between the supporting plate and the elastic buffer object, and the elastic buffer object is located between the supporting plate and the connecting block.
Through adopting above-mentioned technical scheme, the limiting plate is spacing to the motion of connecting block and connecting rod, is difficult for producing the condition of connecting block from the buffer slot roll-off of connecting rod tip, safe and reliable.
The present invention may be further configured in a preferred embodiment as: a supporting rod is arranged between the supporting plate and the bottom plate, one end of the supporting rod is connected with the side face, far away from the supporting plate, of the supporting plate, and the other end of the supporting rod is connected with the bottom plate.
Through adopting above-mentioned technical scheme, the backup pad is supported to the bracing piece, and backup pad, bracing piece and bottom plate form triangular stable structure, make the backup pad more firm and difficult emergence rock, do benefit to and strut the foundation ditch lateral wall more steadily.
The present invention may be further configured in a preferred embodiment as: the supporting plate is slidably mounted on the bottom plate along the direction parallel to the axis of the connecting rod, one end of the supporting rod is hinged to the side face of the supporting plate, the other end of the supporting rod is slidably connected to the bottom plate, and the bottom plate is provided with a limiting part for limiting the sliding of the end part of the supporting rod.
Through adopting above-mentioned technical scheme, the tip of bracing piece slides along the bottom plate, and the backup pad slides along the axis parallel direction with the connecting rod, and it slides to drive the backup pad through connecting rod and spring, has both done benefit to and has supported backplate and foundation ditch lateral wall to tightly, can adjust the distance between backup pad and the backup pad in a flexible way again, adjusts the elasticity of spring. After the position is determined, the supporting rod is fixed through the limiting piece, so that the supporting plate is fixed in position, stable and reliable.
The present invention may be further configured in a preferred embodiment as: the bottom plate along with the sliding tray has been seted up to the axis parallel direction of connecting rod, the bracing piece is close to the tip of bottom plate articulates there is the sliding block, the sliding block slide nest in the sliding tray.
Through adopting above-mentioned technical scheme, the sliding block slides along the sliding tray, and the sliding tray leads the sliding block, makes the bracing piece receive the restriction of sliding tray lateral wall when locking simultaneously, improves the stability of bracing piece.
The present invention may be further configured in a preferred embodiment as: the locating part includes adjusting pole and lock nut, the axial of adjusting the pole with the direction parallel is seted up to the sliding tray, adjust the pole with bottom plate threaded connection, adjust the pole orientation the tip of sliding block with the sliding block rotates to be connected, lock nut thread bush is located adjust the pole.
Through adopting above-mentioned technical scheme, rotate the regulation pole, make and adjust pole along axial motion, drive the sliding block and slide along the sliding tray, make the tip of bracing piece slide along the bottom plate, adjust the position of backup pad. Carry out position control through threaded connection, it is more nimble accurate. After the position is determined, the locking nut is rotated to enable the locking nut to be abutted against and locked with the bottom plate, the rotation of the adjusting rod is limited, the positions of the supporting rod and the supporting plate are fixed, and the stability of the foundation pit supporting structure is improved.
The present invention may be further configured in a preferred embodiment as: the anchor rod is arranged on one side, facing the bottom of the foundation pit, of the bottom plate and is inserted into the foundation pit.
Through adopting above-mentioned technical scheme, insert the foundation ditch through the stock, improve the stability of being connected of bottom plate and foundation ditch bottom for the difficult horizontal direction's that takes place of bottom plate slides, further improves foundation ditch supporting construction's stability.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through the arrangement of the bottom plate, the supporting plate, the connecting rod and the spring, on one hand, the elastic force generated by the compression of the spring enables the supporting plate to be tightly abutted against the side wall of the foundation pit, so that the supporting effect is improved; on the other hand, the spring is used for buffering between the supporting plate and the supporting plate, so that the supporting plate is not easy to damage due to rigid extrusion and collision, and the service life is prolonged.
2. Through the setting of dashpot and elastic buffer thing, elastic buffer thing carries out elastic buffer between the tip of connecting rod and the interior bottom of dashpot, with the spring cooperation, further slows down the rigidity extrusion.
3. Through the setting of backup pad, bracing piece and locating part, the tip of bracing piece slides along the bottom plate, and the backup pad slides along the axis parallel direction with the connecting rod, and it slides to drive the supporting plate through connecting rod and spring, has both done benefit to and has supported backplate and foundation ditch lateral wall to tightly, can adjust the distance between backup pad and the supporting plate in a flexible way again, the elasticity of adjustment spring. After the position is determined, the supporting rod is fixed through the limiting piece, so that the supporting plate is fixed in position, stable and reliable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present embodiment.
Fig. 2 is a schematic sectional structure of fig. 1.
In the figure, 1, a bottom plate; 11. an anchor rod; 2. a support plate; 21. a slider; 22. a chute; 3. a support bar; 31. a slider; 32. a sliding groove; 4. a limiting member; 41. adjusting a rod; 42. locking the nut; 5. a connecting rod; 51. connecting blocks; 6. a spring; 7. a buffer tank; 71. an elastic buffer; 72. a limiting plate; 73. a bolt; 8. and supporting the guard plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a foundation pit supporting structure, including being fixed in the bottom plate 1 of foundation ditch bottom, 1 level of bottom plate sets up, and bottom plate 1 is equipped with stock 11 towards the one side of foundation ditch bottom, and stock 11 inserts the foundation ditch, improves the stability of being connected of bottom plate 1 and foundation ditch bottom for the difficult horizontal direction's that takes place of bottom plate 1 slide.
Referring to fig. 1 and 2, one side slidable mounting that bottom plate 1 kept away from the foundation ditch bottom has vertical backup pad 2, and the lower extreme of backup pad 2 is equipped with slider 21, and spout 22 has been seted up along the horizontal direction to the up end of bottom plate 1, and slider 21 slides and nests in spout 22. Be equipped with bracing piece 3 between backup pad 2 and the bottom plate 1, the one end of bracing piece 3 is articulated with the side that the foundation ditch lateral wall was kept away from to backup pad 2, and the other end of bracing piece 3 articulates there is sliding block 31, and sliding tray 32 has been seted up along the horizontal direction to the terminal surface of bottom plate 1, and sliding block 31 slides and nests in sliding tray 32. The bottom plate 1 is provided with a limiting part 4 for limiting the sliding of the end part of the support rod 3, the limiting part 4 comprises an adjusting rod 41 and a locking nut 42, the axial direction of the adjusting rod 41 is parallel to the opening direction of the sliding groove 32, the adjusting rod 41 is threaded to penetrate through the bottom plate 1, the adjusting rod 41 is inserted into the sliding block 31 towards the end part of the sliding block 31, and the locking nut 42 is threaded and sleeved on the adjusting rod 41.
Referring to fig. 1 and 2, the adjusting rod 41 is rotated to move the adjusting rod 41 along the axial direction, so as to drive the sliding block 31 to slide along the sliding groove 32, so that the end of the supporting rod 3 slides along the bottom plate 1, the supporting plate 2 slides, the sliding block 21 slides along the sliding groove 22, the supporting plate 2 is guided and limited, the position of the supporting plate 2 is adjusted, and the position is adjusted through threaded connection, so that the positioning device is more flexible and precise. After the position is determined, the locking nut 42 is rotated to enable the locking nut 42 to be abutted against and locked with the bottom plate 1, the rotation of the adjusting rod 41 is limited, the positions of the supporting rod 3 and the supporting plate 2 are fixed, and the stability of the foundation pit supporting structure is improved. Backup pad 2, bracing piece 3 and bottom plate 1 form triangular stable structure, make backup pad 2 stabilize more and difficult emergence is rocked, do benefit to and strut the foundation ditch lateral wall more steadily.
Referring to fig. 1 and 2, a vertical supporting plate 8 is arranged on one surface of the supporting plate 2 facing the side wall of the foundation pit, a horizontal connecting rod 5 is arranged between the supporting plate 8 and the supporting plate 2, one end of the connecting rod 5 is fixedly connected to the supporting plate 8, and the other end of the connecting rod 5 is inserted into the side surface of the supporting plate 2. Buffer slot 7 has been seted up towards the one side of backup pad 2 backplate 8, and the tip of connecting rod 5 is equipped with connecting block 51, and connecting block 51's cross sectional dimension is greater than connecting rod 5's cross sectional dimension, and connecting block 51 sliding nest is in buffer slot 7. An elastic buffer 71 is arranged in the buffer groove 7, the elastic buffer 71 is made of rubber materials, and the elastic buffer 71 is located between the end part of the connecting rod 5 and the inner bottom of the buffer groove 7. A limiting plate 72 is fixedly mounted at an opening of the buffer groove 7, and the limiting plate 72 is fixed with the side wall of the support plate 2 through a bolt 73. The connecting rod 5 is slidably inserted through the limiting plate 72, and the connecting block 51 is located between the limiting plate 72 and the elastic buffer 71. The outer side of the connecting rod 5 is coaxially sleeved with a spring 6, and the spring 6 is positioned between the supporting plate 2 and the supporting plate 8.
Referring to fig. 1 and 2, the connecting rod 5 connects the supporting plate 8 and the supporting plate 2, and the supporting plate 8 abuts against the side wall of the foundation pit. The elastic force generated by the compression of the spring 6 enables the supporting plate 8 to be tightly abutted against the side wall of the foundation pit, so that the supporting effect is improved; meanwhile, the spring 6 buffers between the supporting plate 8 and the supporting plate 2, so that the supporting plate 8 is not easy to be damaged due to rigid extrusion and collision, and the service life is prolonged. Connecting rod 5 has the effect of radial support and axial direction to spring 6, makes spring 6 be difficult for taking place the condition of buckling at the in-process of deformation, has promoted the effect of tightly supporting and buffering of spring 6. The elastic buffer 71 elastically buffers between the end of the connecting rod 5 and the inner bottom of the buffer groove 7, and cooperates with the spring 6 to further reduce the rigid compression. The limiting plate 72 limits the movement of the connecting block 51 and the connecting rod 5, the connecting block 51 at the end of the connecting rod 5 cannot easily slide out of the buffer groove 7, and the device is safe and reliable.
The implementation principle of the embodiment is as follows: rotate and adjust pole 41, drive sliding block 31 and slide along sliding tray 32, make the tip of bracing piece 3 slide, backup pad 2 slides along bottom plate 1, and slider 21 slides along spout 22, adjusts the position of backup pad 2, drives a backplate 8 through connecting rod 5 and spring 6 and slides, makes backplate 8 and foundation ditch lateral wall butt. The elastic force generated by the compression of the spring 6 enables the supporting plate 8 to be tightly abutted against the side wall of the foundation pit, so that the supporting effect is improved; meanwhile, the spring 6 buffers between the supporting plate 8 and the supporting plate 2, so that the supporting plate 8 is not easy to be damaged due to rigid extrusion and collision, and the service life is prolonged. The resilient bumper 71 cooperates with the spring 6 to further slow the rigid compression. After the position is determined, the locking nut 42 is rotated to enable the locking nut 42 to be abutted against and locked with the bottom plate 1, the rotation of the adjusting rod 41 is limited, the positions of the supporting rod 3 and the supporting plate 2 are fixed, and the stability of the foundation pit supporting structure is improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (5)
1. The utility model provides a foundation ditch supporting construction, is including bottom plate (1) that is fixed in the foundation ditch bottom, its characterized in that: the base plate (1) is provided with a supporting plate (2), one surface, facing the side wall of the foundation pit, of the supporting plate (2) is provided with a supporting plate (8), a connecting rod (5) is arranged between the supporting plate (8) and the supporting plate (2), one end of the connecting rod (5) is fixedly connected to the supporting plate (8), the other end of the connecting rod (5) is inserted into the side face of the supporting plate (2) in a sliding mode, a spring (6) is coaxially sleeved on the outer side of the connecting rod (5), and the spring (6) is located between the supporting plate (8) and the supporting plate (2); a support rod (3) is arranged between the support plate (2) and the bottom plate (1), one end of the support rod (3) is connected with the side surface of the support plate (2) far away from the support guard plate (8), and the other end of the support rod (3) is connected with the bottom plate (1); the supporting plate (2) is slidably mounted on the bottom plate (1) along a direction parallel to the axis of the connecting rod (5), one end of the supporting rod (3) is hinged to the side face of the supporting plate (2), the other end of the supporting rod (3) is slidably connected to the bottom plate (1), and the bottom plate (1) is provided with a limiting piece (4) for limiting the end portion of the supporting rod (3) to slide; a sliding groove (32) is formed in the bottom plate (1) along the direction parallel to the axis of the connecting rod (5), a sliding block (31) is hinged to the end, close to the bottom plate (1), of the supporting rod (3), and the sliding block (31) is nested in the sliding groove (32) in a sliding mode; the locating part (4) is including adjusting pole (41) and lock nut (42), the axial of adjusting pole (41) with the direction of seting up of sliding tray (32) is parallel, adjust pole (41) with bottom plate (1) threaded connection, adjust pole (41) orientation the tip of sliding block (31) with sliding block (31) rotate and are connected, lock nut (42) thread bush is located adjust pole (41).
2. A foundation pit supporting construction according to claim 1, wherein: the utility model discloses a buffer slot (7) has been seted up to backup pad (2) orientation the one side of backplate (8), the tip of connecting rod (5) slides and inserts and locate in buffer slot (7), be equipped with elasticity buffer (71) in buffer slot (7), elasticity buffer (71) are located the tip of connecting rod (5) with between the interior bottom of buffer slot (7).
3. A foundation pit supporting construction according to claim 2, wherein: the connecting rod (5) is inserted into the end part of the buffer groove (7) and is provided with a connecting block (51), the section size of the connecting block (51) is larger than that of the connecting rod (5), and the connecting block (51) is nested in the buffer groove (7) in a sliding manner along the axial direction of the connecting rod (5).
4. A foundation pit supporting construction according to claim 3, wherein: limiting plates (72) are installed at openings of the buffer grooves (7), the limiting plates (72) are fixedly installed on the side faces of the supporting plates (2), the connecting rods (5) penetrate through the limiting plates (72), and the connecting blocks (51) are located between the limiting plates (72) and the elastic buffer objects (71).
5. The excavation supporting structure of claim 1, wherein: one side of the base plate (1) facing the bottom of the foundation pit is provided with an anchor rod (11), and the anchor rod (11) is inserted into the foundation pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425964.8U CN213448496U (en) | 2020-07-18 | 2020-07-18 | Foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425964.8U CN213448496U (en) | 2020-07-18 | 2020-07-18 | Foundation pit supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN213448496U true CN213448496U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021425964.8U Active CN213448496U (en) | 2020-07-18 | 2020-07-18 | Foundation pit supporting structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322977A (en) * | 2021-06-17 | 2021-08-31 | 郭长占 | Foundation pit supporting device for foundation pit construction |
| CN116290006A (en) * | 2023-05-18 | 2023-06-23 | 中铁二十三局集团有限公司 | Composite protective material foundation pit supporting system and construction method |
| CN117127628A (en) * | 2023-10-26 | 2023-11-28 | 国网（天津）综合能源服务有限公司 | Cable structure foundation pit supporting device |
-
2020
- 2020-07-18 CN CN202021425964.8U patent/CN213448496U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322977A (en) * | 2021-06-17 | 2021-08-31 | 郭长占 | Foundation pit supporting device for foundation pit construction |
| CN116290006A (en) * | 2023-05-18 | 2023-06-23 | 中铁二十三局集团有限公司 | Composite protective material foundation pit supporting system and construction method |
| CN116290006B (en) * | 2023-05-18 | 2023-09-08 | 中铁二十三局集团有限公司 | Composite protective material foundation pit supporting system and construction method |
| CN117127628A (en) * | 2023-10-26 | 2023-11-28 | 国网（天津）综合能源服务有限公司 | Cable structure foundation pit supporting device |
| CN117127628B (en) * | 2023-10-26 | 2024-03-26 | 国网（天津）综合能源服务有限公司 | Cable structure foundation pit supporting device |
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