CN214194607U - Temporary support foundation for roadbed slope - Google Patents
Temporary support foundation for roadbed slope Download PDFInfo
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- CN214194607U CN214194607U CN202023080028.0U CN202023080028U CN214194607U CN 214194607 U CN214194607 U CN 214194607U CN 202023080028 U CN202023080028 U CN 202023080028U CN 214194607 U CN214194607 U CN 214194607U
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Abstract
The utility model relates to a roadbed slope temporary support foundation, which is mainly applied to the construction of steel box girder slope temporary support foundation with large work load of slope excavation, difficult excavation and difficult drainage, and is used for solving the problems of large excavation load of the slope, poor water prevention and drainage performance, unstable bearing capacity of the support foundation, low safety and the like, and has better technical and economic benefits; including ramming the ground, the cement bed course, regularization steel mould, C10 concrete seal and bar built-in fitting, the ramming ground includes that the trend of edgewise slope is equipped with the sill in subaerial proper order, one-level step and second grade step etc. the cement bed course is located the ramming ground, the pre-buried bar built-in fitting that has in the cement bed course, regularization steel mould is located bar built-in fitting inboard and fixed rather than passing through L type connecting plate, be equipped with the escape canal on the ramming ground, waterproof geotechnological cloth has all been laid to ramming ground and escape canal top, C10 concrete seal is pour on waterproof geotechnological cloth.
Description
Technical Field
The utility model relates to a side slope temporary support basis mainly is applied to in the steel case roof beam side slope temporary support foundation construction that slope excavation work load is big, the excavation difficulty, is difficult to the drainage.
Background
The steel box girder is a box girder made of steel plates, and the section form of the steel box girder has good mechanical characteristics, so that the structure has light weight, large rigidity, large bending moment resistance and large torsional rigidity, and can reach the span of nearly kilometers, therefore, the steel box girder is widely applied to bridges with large span, such as river channels, lakes, ponds, side slopes, existing lines and the like; in construction, a construction method that the whole steel box girder structure is divided into a plurality of sections to be manufactured and then assembled on site is adopted, and temporary supports are often erected according to the terrain during site hoisting.
When temporary supports need to be built on a road slope, the following problems are often faced: (1) the work load of side slope excavation is large, and more rocks exist, so that the project progress is influenced; (2) when the support foundation is poured, the template is difficult to fix, and the phenomenon of 'die running' is easy to occur; (3) the side slope drainage is not enough, and the rainwater permeates into the ground easily, soaks the ground, leads to support foundation bearing capacity to descend, appears the unstability phenomenon even, seriously influences interim support safety.
In order to solve the problems, the invention provides a simple and effective temporary support foundation for a roadbed slope, which improves the construction efficiency of the temporary support, reduces the collapse of the support foundation and avoids safety accidents.
SUMMERY OF THE UTILITY MODEL
Based on this, this application provides a side slope temporary support basis to it is big to solve the side slope excavation volume, prevents that drainage is poor, and support basis bearing capacity is unstable, the security low scheduling problem, has better technological economic benefits.
The application provides road bed side slope temporary support basis, including rammed ground, cement bed course, regularization steel mould, C10 concrete seal and bar built-in fitting, the rammed ground includes that the slope trend of edgewise slope is subaerial to be equipped with sill, one-level step and second grade step etc. in proper order, the cement bed course is located rammed ground, and the pre-buried bar built-in fitting that has in the cement bed course, it is inboard that regularization steel mould is located the bar built-in fitting and fixed rather than passing through L type connecting steel plate, is equipped with the escape canal on the rammed ground, and waterproof geotechnological cloth has all been laid to rammed ground and escape canal top, and C10 concrete seal is pour on waterproof geotechnological cloth.
Preferably, the bar embedded parts are respectively arranged on the base platform, the first-level step and the second-level step, the bar embedded parts comprise transverse bridge bar embedded parts and longitudinal bridge bar embedded parts, the transverse bridge bar embedded parts and the longitudinal bridge bar embedded parts are both positioned on the inner sides of the cement cushion layers, the transverse bridge bar embedded parts are respectively arranged on the left side and the right side of the shaped steel die, the longitudinal bridge bar embedded parts are respectively arranged on the front side and the rear side of the shaped steel die, and the transverse bridge bar embedded parts and the longitudinal bridge bar embedded parts are respectively connected with the horizontal plates of the steel plates through bolts.
Preferably, the regularization steel mould is established on sill plate, one-level step and second grade step respectively, and the regularization steel mould includes two at least horizontal bridge to regularization steel mould and vertical bridge to regularization steel mould, and two horizontal bridge to regularization steel mould and vertical bridge to regularization steel mould all lie in the cement bed course and enclose into a square frame, concrete strip basis has been pour to square frame inside to be equipped with pre-buried steel sheet in concrete strip basis inside.
Preferably, the L-shaped connecting steel plate comprises a transverse plate and a vertical plate which are integrally formed, the vertical plate is in contact with the regularized steel die, the transverse plate is in contact with the strip-shaped embedded part, and the transverse plate and the vertical plate are fixed with the regularized steel die and the strip-shaped embedded part respectively through bolt structures.
Preferably, the escape canal is divided between the bottom platform and the first-level step and between the first-level step and the second-level step, the escape canal adopts an inward-inclining type, and the inclination of the escape canal is 0.2%.
Preferably, the shorter slope top in length is equipped with the cushion in the escape canal, the cushion is located the C10 concrete seal of regularization steel mould side, it wedges the shape to shelve the piece to be equipped with the slope on the longer slope of length in the escape canal, and the slope is carved the shape and is shelved the piece relative with the cushion, escape canal upper portion is equipped with telescopic precast concrete apron, and telescopic precast concrete apron one end is placed on the cushion, and the other end is shelved the shape in the slope and is shelved the piece, and telescopic precast concrete apron can shelter from the escape canal.
Preferably, the waterproof geotextile is laid on exposed parts in all support building areas such as a rammed foundation, a drainage ditch, a primary step, a slope, a secondary step, a back slope and the like.
Preferably, the waterproof geotextile adopts polyester non-woven geotextile, and two layers are laid up and down.
The thickness of the C10 concrete seal is 5cm, the waterproof geotextile is completely covered by the C10 concrete seal, and therefore the exposed part in the whole support erecting area is completely sealed.
Compared with the prior art, the utility model has the following characteristics and beneficial effect:
(1) the utility model discloses a step basis has avoided the whole excavation of side slope, and work load is little, and the time limit for a project is short according to side slope relief trend excavation step.
(2) The utility model discloses a be located the synchronous fixed regularization steel mould of bar built-in fitting on the cement bed course for the basis is pour the in-process and is run the mould phenomenon and few, bar basis construction quality is high.
(3) The utility model discloses the side slope has set up the inward-sloping escape canal and has carried out the drainage, in time with the rainwater discharge of side slope, adopts waterproof geotechnological cloth + C10 concrete seal's method to set up regional exposed part whole to the support and seal, and waterproof performance is good, and interim support basis bearing capacity is strong, and support stability is good.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in related arts, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the step foundation of the temporary support for the roadbed slope of the utility model;
FIG. 2 is a partial structure view of a step foundation of the temporary support for a roadbed slope of the utility model;
fig. 3 is the utility model discloses the local plan view of road bed side slope temporary stand step basis.
Wherein: 1. tamping the foundation; 2. a cement cushion layer; 3. a transverse bridge direction strip-shaped embedded part; 4. an L-shaped connecting steel plate; 5. a bolt; 6. shaping a steel mould in the transverse bridge direction; 7. a concrete strip foundation; 8. pre-burying a steel plate; 9. cushion blocks; 10. a drainage ditch; 11. a telescopic precast concrete cover plate; 12. c10 concrete seal; 13. waterproof geotextile; 14. a first step; 15. a slope; 16. a second step; 17. back to the side slope; 18. a slope wedge-shaped shelving block; 19. longitudinal bridge direction strip-shaped embedded parts; 20. and (5) forming a steel die in the longitudinal direction of the bridge.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other examples, which can be obtained by a person skilled in the art without making any inventive step based on the examples in this application, are within the scope of protection of this application.
It should be understood by those skilled in the art that technical or scientific terms used in the claims and the specification should have the ordinary meaning as understood by those having ordinary skill in the art to which this application belongs. "connected" or "coupled" and like terms are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect; the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or positional relationship as shown in the drawings, which are used for convenience in describing the invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, the above-described terms are not to be construed as limiting the invention.
Referring to fig. 1-3, a subgrade slope temporary support foundation is provided in the embodiment of the application, and comprises a rammed foundation 1, a cement cushion layer 2, a regularized steel die, a C10 concrete seal 12 and strip-shaped embedded parts, wherein the rammed foundation 1 comprises a bottom platform, a first-stage step 14, a second-stage step 16 and the like which are sequentially arranged on the ground along the slope trend, the specific step number is determined according to the terrain condition, the cement cushion layer 2 is arranged on the rammed foundation 1, the strip-shaped embedded parts are embedded in the cement cushion layer 2, the regularized steel die is arranged on the inner sides of the strip-shaped embedded parts and fixed with the strip-shaped embedded parts through an L-shaped connecting steel plate 4, a drainage ditch 10 is arranged on the rammed foundation 1, waterproof geotextile 13 is laid above the rammed foundation 1 and the drainage ditch 10, and the C10 concrete seal 12 is poured on the waterproof geotextile 13.
Preferably, the bar embedded parts are respectively arranged on the base platform, the first-level step 14 and the second-level step 16, the bar embedded parts comprise transverse bridge bar embedded parts 3 and longitudinal bridge bar embedded parts 19, the transverse bridge bar embedded parts 3 and the longitudinal bridge bar embedded parts 19 are both positioned on the inner sides of the cement cushion layers 2, the transverse bridge bar embedded parts 3 are respectively arranged on the left side and the right side of the shaped steel die, the longitudinal bridge bar embedded parts 19 are respectively arranged on the front side and the rear side of the shaped steel die, and the transverse bridge bar embedded parts 3 and the longitudinal bridge bar embedded parts 19 are both fixed with the horizontal plates of the L-shaped connecting steel plates 4 through bolts 5.
Preferably, the regularization steel mould is established on the sill, one-level step 14 and second grade step 16 respectively, and the regularization steel mould includes two at least horizontal bridge to regularization steel mould 6 and vertical bridge to regularization steel mould 20, and two horizontal bridge to regularization steel mould 6 and vertical bridge are all located cement bed course 2 and enclose into a square frame to regularization steel mould 20, and concrete strip foundation 7 has been pour to square frame inside, and at the inside pre-buried steel sheet 8 that is equipped with of concrete strip foundation 7.
Preferably, the L-shaped connecting steel plate 4 comprises a transverse plate and a vertical plate which are integrally formed, the vertical plate is in contact with the regularized steel die, the transverse plate is in contact with the strip-shaped embedded part, and the transverse plate and the vertical plate are fixed with the regularized steel die and the strip-shaped embedded part respectively through a bolt 5 structure.
Preferably, the drainage ditch 10 is respectively arranged between the bottom platform and the first-stage step 14 and between the first-stage step 14 and the second-stage step 16, the drainage ditch 10 adopts an inward-inclining type, and the inclination of the inclination is 0.2%.
Preferably, the cushion block 9 is arranged at the top of the slope 15 with the shorter length on the drainage ditch 10, the cushion block 9 is located on the C10 concrete seal layer 12 beside the stereotyped steel die, the slope wedge-shaped holding block 18 is arranged on the slope 15 with the longer length on the drainage ditch 10, the slope wedge-shaped holding block 18 is opposite to the cushion block 9, the telescopic precast concrete cover plate 11 is arranged on the upper portion of the drainage ditch 10, one end of the telescopic precast concrete cover plate 11 is placed on the cushion block 9, the other end of the telescopic precast concrete cover plate is placed on the slope wedge-shaped holding block 18, the telescopic precast concrete cover plate 11 can shield the drainage ditch 10 and can push the drainage ditch 10 to be folded, and the drainage ditch 10 is convenient to clean.
Preferably, the waterproof geotextile 13 is laid on the exposed parts in all the support building areas such as the tamped foundation 1, the drainage ditch 10, the primary step 14, the slope 15, the secondary step 16, the back slope 17 and the like.
Preferably, the waterproof geotextile 13 is polyester nonwoven geotextile, and two layers are laid up and down.
The thickness of the C10 concrete seal 12 is 5cm, and the waterproof geotextile 13 is completely covered by the C10 concrete seal 12, so that the exposed part in the whole support building area is completely sealed.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. Temporary support basis of road bed side slope, its characterized in that includes: tamp ground (1), cement bed course (2), regularization steel mould, C10 concrete seal (12) and bar built-in fitting, tamp ground (1) including following the slope trend and subaerial sill, one-level step (14) and the second grade step (16) of being equipped with in proper order, cement bed course (2) are located tamp ground (1), and the pre-buried bar built-in fitting that has in cement bed course (2), the regularization steel mould is located bar built-in fitting inboard and fixed through L type connecting plate (4) rather than, is equipped with escape canal (10) on tamp ground (1), and waterproof geotechnological cloth (13) have all been laid above tamp ground (1) and escape canal (10), and C10 concrete seal (12) are pour on waterproof geotechnological cloth (13).
2. The subgrade and slope temporary support foundation of claim 1, characterized in that the bar-shaped embedded parts are respectively arranged on the base platform, the first-level step (14) and the second-level step (16), the bar-shaped embedded parts comprise transverse bridge-direction bar-shaped embedded parts (3) and longitudinal bridge-direction bar-shaped embedded parts (19), the transverse bridge-direction bar-shaped embedded parts (3) and the longitudinal bridge-direction bar-shaped embedded parts (19) are both positioned on the inner side of the cement cushion layer (2), the transverse bridge-direction bar-shaped embedded parts (3) are respectively arranged on the left side and the right side of the regularized steel die, the longitudinal bridge-direction bar-shaped embedded parts (19) are respectively arranged on the front side and the rear side of the regularized steel die, and the transverse bridge-direction bar-shaped embedded parts (3) and the longitudinal bridge-direction bar-shaped embedded parts (19) are both fixed by bolts (5) to form horizontal plates of the L-shaped connecting steel plates (4).
3. The subgrade and slope temporary support foundation according to claim 1, characterized in that the shaped steel dies are respectively arranged on the bottom platform, the first-level step (14) and the second-level step (16), the shaped steel dies comprise at least two transverse bridge-direction shaped steel dies (6) and longitudinal bridge-direction shaped steel dies (20), the two transverse bridge-direction shaped steel dies (6) and the longitudinal bridge-direction shaped steel dies (20) are both positioned on the cement cushion layer (2) and enclose a square frame, a concrete strip foundation (7) is poured inside the square frame, and a pre-buried steel plate (8) is arranged inside the concrete strip foundation (7).
4. The subgrade and slope temporary support foundation according to claim 1, wherein the L-shaped connecting steel plates (4) comprise a transverse plate and a vertical plate which are integrally formed, the vertical plate is in contact with the sizing steel die, the transverse plate is in contact with the strip-shaped embedded part, and the transverse plate and the vertical plate are respectively fixed with the sizing steel die and the strip-shaped embedded part through a bolt (5) structure.
5. The subgrade and slope temporary support foundation according to claim 1, characterized in that the drainage ditch (10) is respectively arranged between the bottom platform and the first-stage step (14) and between the first-stage step (14) and the second-stage step (16), the drainage ditch (10) adopts an inward-inclining type, and the inclination of the drainage ditch is 0.2%.
6. The subgrade and slope temporary support foundation according to claim 1, characterized in that a cushion block (9) is arranged at the top of a shorter-length slope (15) on the drainage ditch (10), the cushion block (9) is positioned on a C10 concrete seal (12) beside a sizing steel die, a slope wedge-shaped holding block (18) is arranged on a longer-length slope (15) on the drainage ditch (10), the slope wedge-shaped holding block (18) is opposite to the cushion block (9), a telescopic precast concrete cover plate (11) is arranged on the upper portion of the drainage ditch (10), one end of the telescopic precast concrete cover plate (11) is placed on the cushion block (9), and the other end of the telescopic precast concrete cover plate is placed on the slope wedge-shaped holding block (18).
7. The subgrade slope temporary support foundation according to claim 1, characterized in that the waterproof geotextile (13) is laid on a rammed foundation (1), a drainage ditch (10), a primary step (14), a slope (15), a secondary step (16), a back slope (17).
8. The subgrade slope temporary support foundation according to claim 1, wherein the waterproof geotextile (13) is polyester non-woven geotextile, and is laid up in two layers.
9. The subgrade slope temporary support foundation of claim 1, wherein said C10 concrete seal (12) is 5cm thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023080028.0U CN214194607U (en) | 2020-12-18 | 2020-12-18 | Temporary support foundation for roadbed slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023080028.0U CN214194607U (en) | 2020-12-18 | 2020-12-18 | Temporary support foundation for roadbed slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214194607U true CN214194607U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023080028.0U Active CN214194607U (en) | 2020-12-18 | 2020-12-18 | Temporary support foundation for roadbed slope |
Country Status (1)
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|---|---|
| CN (1) | CN214194607U (en) |
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Denomination of utility model: Temporary support foundation for roadbed slope Effective date of registration: 20230927 Granted publication date: 20210914 Pledgee: Industrial Bank Limited by Share Ltd. Wuhan branch Pledgor: HUBEI PROVINCIAL ROAD & BRIDGE Co.,Ltd. Registration number: Y2023980059401 |