CN213709563U - Foundation pit supporting structure - Google Patents
Foundation pit supporting structure Download PDFInfo
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- CN213709563U CN213709563U CN202022576731.4U CN202022576731U CN213709563U CN 213709563 U CN213709563 U CN 213709563U CN 202022576731 U CN202022576731 U CN 202022576731U CN 213709563 U CN213709563 U CN 213709563U
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- foundation pit
- lateral wall
- supporting structure
- foundation
- foundation ditch
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Abstract
The utility model relates to a foundation pit supporting structure, including the foundation ditch body, the four lateral walls of foundation ditch body are the first foundation ditch lateral wall of north side, the second foundation ditch lateral wall of east side, the third foundation ditch lateral wall of south side and the fourth foundation ditch lateral wall of west side respectively, be provided with the first supporting structure of inserting the stake formula on the first foundation ditch lateral wall, be provided with the second supporting construction of inserting the stake formula on the second foundation ditch lateral wall, all set up to putting the slope side on third foundation ditch lateral wall and the fourth foundation ditch lateral wall, it is provided with third supporting construction on the slope side to put, third supporting construction is for laying the reinforcing bar net piece on putting the slope side. This application has the different supporting construction of adoption according to local conditions and struts the lateral wall of corresponding foundation ditch body to reach the effect that plays better strutting to the lateral wall of foundation ditch.
Description
Technical Field
The application relates to the technical field of foundation pit support, in particular to a foundation pit support structure.
Background
Along with the development of urbanization and modernization, the requirement for development and construction in cities is increasingly urgent, and various engineering constructions are more and more; the foundation pit is a soil pit excavated at a designed position of a foundation according to the elevation and the plane size of the foundation, belongs to temporary engineering, and has the function of providing a space so that the building operation of the foundation can be carried out according to the position specified by the design.
The existing construction engineering field is low in landform, and due to manual modification, the height difference of the landform is large, the heights of a north side slope and an east side slope of the construction engineering field are far higher than those of a south side slope and a west side slope of the construction engineering field, so that a foundation pit excavated aiming at the construction engineering field is parallel and level to ensure the bottom wall of the foundation pit, the excavation depth of each side wall of the foundation pit is different, the four side walls of the foundation pit are respectively a first foundation pit side wall on the north side, a second foundation pit side wall on the east side, a third foundation pit side wall on the south side and a fourth foundation pit side wall on the west side, wherein the depths of the first foundation pit side wall and the second foundation pit side wall are larger than those of the third foundation pit side wall and the fourth foundation pit side wall, and then the four side walls of the foundation pit with the same supporting structure are adopted for supporting.
With respect to the related art among the above, the inventors consider that the following drawbacks occur: because the relief height difference is great, lead to the degree of depth difference of different foundation ditch lateral walls, if adopt the same supporting construction to strut four lateral walls of foundation ditch, can have the not good problem of effect of strutting.
SUMMERY OF THE UTILITY MODEL
In order to strut the lateral wall of corresponding foundation ditch body in the different supporting construction of adoption of according to local conditions to reach better effect of strutting, this application provides a foundation ditch supporting construction.
The application provides a foundation ditch supporting construction adopts following technical scheme:
the utility model provides a foundation pit supporting structure, includes the foundation ditch body, the four lateral walls of foundation ditch body are the first foundation ditch lateral wall of north side, the second foundation ditch lateral wall of east side, the third foundation ditch lateral wall of south side and the fourth foundation ditch lateral wall of west side respectively, be provided with the first supporting structure of inserting the stake formula on the first foundation ditch lateral wall, be provided with the second supporting structure of inserting the stake formula on the second foundation ditch lateral wall, all set up to put the slope side on third foundation ditch lateral wall and the fourth foundation ditch lateral wall, it is provided with third supporting structure on the slope side to put, third supporting structure is for laying the reinforcing bar net piece on putting the slope side.
Through adopting above-mentioned technical scheme, according to different relief height differences, according to local conditions adopt first supporting construction, second supporting construction and third supporting construction are strutted the lateral wall of foundation ditch body, adopt the first supporting construction and the second supporting construction of inserting the stake formula respectively to the higher first foundation ditch lateral wall of relief and second foundation ditch lateral wall and strut, then adopt the mode of putting the slope to the lower third foundation ditch lateral wall of relief and fourth foundation ditch lateral wall, lay the reinforcing bar net piece to putting the slope side and consolidate, thereby reach and play better effect of strutting to the lateral wall of foundation ditch.
Optionally, the top of first supporting structure is provided with first crown beam, first supporting structure includes many fender piles that set up side by side, and is adjacent be provided with panel between the first stake between the fender pile.
Through adopting above-mentioned technical scheme, adopt the fender pile to strut first foundation ditch lateral wall, the first foundation ditch lateral wall of adaptation is for the difference in height of third foundation ditch lateral wall, and the setting up of first hat roof beam has improved the effect of strutting of fender pile to first foundation ditch lateral wall, and panel has improved the effect of strutting of adjacent fender pile simultaneously between first stake.
Optionally, a second crown beam is arranged at the top of the second supporting structure, the second supporting structure comprises a plurality of manual excavation piles arranged in parallel, and one ends, close to each other, of the second crown beam and the first crown beam are fixedly connected through a connecting crown.
Through adopting above-mentioned technical scheme, adopt artifical bored concrete pile to strut the second foundation ditch lateral wall, the second foundation ditch lateral wall of adaptation is for the difference in height of fourth foundation ditch lateral wall, and the setting up of second hat roof beam has improved artifical bored concrete pile and has strutted the effect to the second foundation ditch lateral wall, and the setting of linking the hat is used for connecting first hat roof beam and second hat roof beam simultaneously to the holistic support intensity of first supporting construction and second supporting construction has been improved.
Optionally, a plurality of prestressed anchor cables are obliquely inserted into each supporting pile, the prestressed anchor cables are parallel to each other and are distributed on the supporting pile at equal intervals, an anchoring section of each prestressed anchor cable extends into the side wall of the first foundation pit and is fixedly connected with the side wall of the first foundation pit, and the inclined direction of the prestressed anchor rods on the same supporting pile is inclined downwards towards one side close to the supporting pile.
By adopting the technical scheme, the oblique insertion of the plurality of prestressed anchor cables strengthens the supporting effect of the supporting pile on the side wall of the first foundation pit.
Optionally, a guide cap is arranged at one end of the prestressed anchor cable extending into the side wall of the first foundation pit.
Through adopting above-mentioned technical scheme, the setting of direction cap helps pegging graft in the lateral wall of first foundation ditch with prestressed anchorage cable.
Optionally, one side of the first crown beam close to the side wall of the first foundation pit and one side of the second crown beam close to the side wall of the second foundation pit are both provided with a soil retaining plate.
Through adopting above-mentioned technical scheme, the setting of retaining plate is used for protecting first hat roof beam and second hat roof beam.
Optionally, the manual hollow piles are provided with a plurality of rows, the plurality of rows of manual hollow piles are distributed at equal intervals, the second crown beams on the manual hollow piles in the front row are fixedly connected with the second crown beams on the manual hollow piles in the rear row through connecting beams, and a second inter-pile panel is arranged between the adjacent manual hollow piles in the same row.
Through adopting above-mentioned technical scheme, even setting up of roof beam is used for consolidating the artifical bored concrete pile between two adjacent rows, and the setting of panel then is favorable to improving the effect of strutting of adjacent artifical bored concrete pile between the second stake.
Optionally, concrete grout is poured on one side of the reinforcing mesh back to the slope side.
Through adopting above-mentioned technical scheme, pour the concrete thick liquid on the reinforcing bar net piece to make the bank protection effect of reinforcing bar net piece better.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to different relief height differences, according to local conditions, the first supporting structure, the second supporting structure and the third supporting structure are adopted to support the side wall of the foundation pit body, the first supporting structure and the second supporting structure which are in pile inserting type are adopted to support the first foundation pit side wall and the second foundation pit side wall which are in higher relief respectively, the third foundation pit side wall and the fourth foundation pit side wall which are in lower relief are in slope releasing mode, and the reinforcing mesh is laid on the slope releasing side to reinforce, so that a better supporting effect is achieved on the side wall of the foundation pit.
Drawings
Fig. 1 is a schematic cross-sectional structure of the entirety of the present application.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic sectional view of the first foundation side wall, the first crown beam, the soil guard plate and the support piles according to the present invention.
Fig. 4 is a cross-sectional structural view of the artificial excavation pile, the coupling beam, and the second crown beam of the present application.
Fig. 5 is a schematic sectional view of the first foundation pit side wall, the support piles and the prestressed anchor cables according to the present invention.
Description of reference numerals: 1. a foundation pit body; 11. a first foundation pit side wall; 12. the side wall of the second foundation pit; 13. the side wall of the third foundation pit; 14. a fourth foundation pit side wall; 15. a first support structure; 151. a first crown beam; 152. a soil guard plate; 153. supporting piles; 154. a first inter-pile panel; 155. a pre-stressed anchor cable; 156. a guide cap; 16. a second supporting structure; 161. a second crown beam; 162. manually hollowing out the pile; 163. a second inter-pile panel; 164. connecting the beams; 17. a third supporting structure; 171. and (4) reinforcing steel bar meshes.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a foundation ditch supporting construction. Referring to fig. 1, a foundation pit supporting structure includes a foundation pit body 1, four side walls of the foundation pit body 1 are a first foundation pit side wall 11 on a north side, a second foundation pit side wall 12 on an east side, a third foundation pit side wall 13 on a south side and a fourth foundation pit side wall 14 on a west side, respectively, wherein depths of the first foundation pit side wall 11 and the second foundation pit side wall 12 are greater than depths of the third foundation pit side wall 13 and the fourth foundation pit side wall 14; first supporting structures 15 are arranged on the first foundation pit side wall 11, second supporting structures 16 are arranged on the second foundation pit side wall 12, slope releasing sides are arranged on the third foundation pit side wall 13 and the fourth foundation pit side wall 14, and third supporting structures 17 are arranged on the slope releasing sides.
Referring to fig. 1 and 2, the third supporting structure 17 is a reinforcing mesh 171 laid on the slope-releasing side, rock nails are arranged on the reinforcing mesh 171, the rock nails are arranged to fix the reinforcing mesh 171 on the uneven slope-releasing side, concrete grout is poured on one side of the reinforcing mesh 171 opposite to the slope-releasing side, and the reinforcing mesh 171 and the concrete grout are arranged to protect the slope of the third foundation pit side wall 13 and the fourth foundation pit side wall 14.
Referring to fig. 3 and 4, a first crown beam 151 is disposed on the top of the first supporting structure 15 (see fig. 1), a second crown beam 161 is disposed on the top of the second supporting structure 16 (see fig. 1), a connecting crown (not shown) is disposed between the second crown beam 161 and the first crown beam 151, and two ends of the connecting crown (not shown) are fixedly connected to the ends of the first crown beam 151 and the second crown beam 161, which are close to each other, respectively. In this embodiment, the first crown beam 151, the connecting crown and the second crown beam 161 are formed by pouring concrete in a reinforcement cage, and in order to provide a specific space for the pouring formation of the first crown beam 151, the connecting crown and the second crown beam 161, the pouring formation is completed in the pouring formwork in the process of pouring the first crown beam 151, the connecting crown and the second crown beam 161, and the pouring formwork is disassembled and then maintained after the pouring formation.
Referring to fig. 3 and 4, in order to protect the first and second crown beams 151 and 161 and to prolong the service lives of the first and second crown beams 151 and 161, a soil guard plate 152 is provided on each of a side of the first crown beam 151 adjacent to the first pit side wall 11 and a side of the second crown beam 161 adjacent to the second pit side wall 12 (see fig. 1); in this embodiment, the retaining plate 152 is formed by pouring concrete into a steel reinforcement cage.
Referring to fig. 2 and 4, the first supporting structure 15 includes a plurality of supporting piles 153 arranged side by side, and a first inter-pile panel 154 is disposed between adjacent supporting piles 153; the second supporting structure 16 includes a plurality of manual bored piles 162 arranged in parallel, and a second inter-pile panel 163 is provided between adjacent manual bored piles 162; in order to make the supporting effect of the second supporting structure 16 better, the artificial hollow piles 162 are arranged in multiple rows, and the multiple rows of artificial hollow piles 162 are distributed at equal intervals; in this embodiment, the number of rows of the artificial excavation piles 162 is two, and the second crown beam 161 of the artificial excavation pile 162 in the previous row is fixedly connected to the second crown beam 161 of the artificial excavation pile 162 in the next row by the connecting beam 164; a second inter-pile panel 163 is provided between adjacent artificial excavation piles 162 in the same row.
In this embodiment, the supporting pile 153 is a square pile, and the supporting pile 153 is formed by pouring concrete into a reinforcement cage; first inter-pile panel 154 and second inter-pile panel 163 are each thickened reinforced concrete slabs; the first inter-pile panel 154 and the second inter-pile panel 163 are each formed by pouring concrete with double layers of steel mesh, and the steel mesh layers are welded and fixed with embedded bars in order to improve the connection strength between the double layers of steel mesh.
Referring to fig. 2 and 5, in order to improve the supporting strength of the first supporting structure 15, a plurality of prestressed anchor cables 155 are inserted into each supporting pile 153 at equal intervals from top to bottom, and in order to facilitate the insertion of the prestressed anchor cables 155 into the first foundation pit side wall 11, a guide cap 156 is disposed at one end of each prestressed anchor cable 155 extending into the first foundation pit side wall 11; the anchoring section of each prestressed anchorage cable 155 extends into the first foundation pit side wall 11 and is fixedly connected with the first foundation pit side wall 11, and the inclination direction of the prestressed anchorage on the same support pile 153 is inclined downwards towards one side close to the support pile 153.
In this embodiment, after inserting the prestressed anchor cables 155 into the first foundation pit side wall 11, the worker may perform grouting into each prestressed anchor cable 155, and the grouting is performed twice, where the first grouting is performed under normal pressure, and after the initial setting is completed by the first grouting, the second grouting is performed under high pressure.
The implementation principle of the foundation pit supporting structure in the embodiment of the application is as follows: according to different relief height differences, the first supporting structure 15, the second supporting structure 16 and the third supporting structure 17 are adopted to support the side wall of the foundation pit body 1 according to local conditions, supporting piles 153 and double-row artificial hollowed piles 162 are respectively adopted to support the first foundation pit side wall 11 and the second foundation pit side wall 12 with higher relief, a slope releasing mode is adopted to release the third foundation pit side wall 13 and the fourth foundation pit side wall 14 with lower relief, a reinforcing mesh 171 is laid on the slope releasing side, and then concrete slurry is poured to reinforce.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a foundation pit supporting structure, includes foundation pit body (1), the four lateral walls of foundation pit body (1) are first foundation pit lateral wall (11) of north side, second foundation pit lateral wall (12) of east side, third foundation pit lateral wall (13) of south side and fourth foundation pit lateral wall (14) of west side respectively, its characterized in that: be provided with first supporting structure (15) of inserting stake formula on first foundation ditch lateral wall (11), be provided with second supporting structure (16) of inserting stake formula on second foundation ditch lateral wall (12), all set up to put the slope side on third foundation ditch lateral wall (13) and fourth foundation ditch lateral wall (14), it is provided with third supporting structure (17) on the slope side to put, third supporting structure (17) are for laying steel mesh piece (171) on putting the slope side.
2. A foundation pit supporting construction according to claim 1, wherein: the top of first supporting structure (15) is provided with first crown beam (151), first supporting structure (15) include many fender pile (153) that set up side by side, and is adjacent be provided with panel (154) between the fender pile (153).
3. A foundation pit supporting construction according to claim 2, wherein: the top of the second supporting structure (16) is provided with a second crown beam (161), the second supporting structure (16) comprises a plurality of manual hollowed piles (162) which are arranged in parallel, and one ends, close to each other, of the second crown beam (161) and the first crown beam (151) are fixedly connected through a connecting crown.
4. A foundation pit supporting construction according to claim 2, wherein: a plurality of prestressed anchor cables (155) are obliquely inserted into each support pile (153), the prestressed anchor cables (155) are parallel to each other and are distributed on the support piles (153) at equal intervals, an anchoring section of each prestressed anchor cable (155) extends into the first foundation pit side wall (11) and is fixedly connected with the first foundation pit side wall (11), and the inclined direction of the prestressed anchor rods on the same support pile (153) is inclined downwards towards one side close to the support pile (153).
5. A foundation pit supporting construction according to claim 4, wherein: and a guide cap (156) is arranged at one end of the prestressed anchor cable (155) extending into the side wall (11) of the first foundation pit.
6. A foundation pit supporting construction according to claim 3, wherein: and one side of the first crown beam (151) close to the first foundation pit side wall (11) and one side of the second crown beam (161) close to the second foundation pit side wall (12) are both provided with a soil retaining plate (152).
7. A foundation pit supporting construction according to claim 3, wherein: the manual hollow piles (162) are provided with a plurality of rows, the manual hollow piles (162) are distributed in a plurality of rows at equal intervals, a second crown beam (161) on the manual hollow pile (162) in the front row is fixedly connected with a second crown beam (161) on the manual hollow pile (162) in the rear row through a connecting beam (164), and a second inter-pile panel (163) is arranged between the adjacent manual hollow piles (162) in the same row.
8. A foundation pit supporting construction according to claim 1, wherein: concrete slurry is poured on one side, back to the slope-releasing side, of the steel bar net piece (171).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022576731.4U CN213709563U (en) | 2020-11-09 | 2020-11-09 | Foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022576731.4U CN213709563U (en) | 2020-11-09 | 2020-11-09 | Foundation pit supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN213709563U true CN213709563U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022576731.4U Active CN213709563U (en) | 2020-11-09 | 2020-11-09 | Foundation pit supporting structure |
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| CN (1) | CN213709563U (en) |
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2020
- 2020-11-09 CN CN202022576731.4U patent/CN213709563U/en active Active
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