CN216108555U - Large-gradient supporting cavity structure - Google Patents
Large-gradient supporting cavity structure Download PDFInfo
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- CN216108555U CN216108555U CN202122221715.8U CN202122221715U CN216108555U CN 216108555 U CN216108555 U CN 216108555U CN 202122221715 U CN202122221715 U CN 202122221715U CN 216108555 U CN216108555 U CN 216108555U
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Abstract
The utility model discloses a large-gradient supporting cavity structure which comprises a grading terrace type side slope and a supporting cavity on the grading terrace type side slope, wherein the grading terrace type side slope is provided with a plurality of permanent side slopes, a plurality of terraces, a flood discharge ditch, a natural foundation and a pile foundation, the terraces and the permanent side slopes are connected to form a slope protecting surface, the flood discharge ditch is positioned on the terrace at the bottommost layer, and the natural foundation and the pile foundation are positioned on the terrace; the supporting cavity spans over the terrace at the highest layer and the terrace at the lowest layer so as to eliminate large height difference of the field; the supporting cavity is overlapped with the basement, and the cross section of the supporting cavity is in the shape of one of a sector, a triangle, a wing and a square. The utility model has simple structure, scientific and reasonable design, adopts the grading platform-ground type structure treatment to avoid the adverse influence of buildings caused by large height difference in the field, and has beautiful whole, strong structural performance and low manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a large-gradient supporting cavity structure.
Background
The problems are met in construction design projects, the height difference of the site where the project is located is greatly changed, about 30 meters of height difference exist between the highest point and the lowest point, the project belongs to the category of mountain buildings, and large height differences (10-20 meters) are formed between a high-area basement, a west-side site and a low-area basement and between a low-area basement and an east-side road. The safety of the large-gradient and large-altitude-difference supporting structure is considered in the design (anti-floating design measures of the structure and design standards of the basement side wall and the basement bottom plate for resisting water and soil pressure need to be met), the traditional structure is very high in construction difficulty and construction cost, and the traditional design is not suitable for being used in places with large altitude differences. In addition, the traditional design method has the adverse effects of ground subsidence, pipelines, landscape and the like caused by the fact that a deep backfill soil layer needs to be backfilled outside the side wall of the basement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a large-gradient supporting cavity structure which is simple in structure, reasonable in structure and low in manufacturing cost.
In order to overcome the defects in the prior art, the utility model adopts the following technical scheme:
a large-gradient supporting cavity structure comprises a grading terrace type side slope and a supporting cavity on the grading terrace type side slope, wherein the grading terrace type side slope is provided with a plurality of permanent side slopes, a plurality of terraces, a flood discharge ditch, a natural foundation and a pile foundation, the terraces and the permanent side slopes are connected to form a slope protecting surface, the flood discharge ditch is positioned on the terrace at the bottommost layer, and the natural foundation and the pile foundation are positioned on the terrace; the supporting cavity spans over the terrace at the highest layer and the terrace at the lowest layer so as to eliminate large height difference of the field; the supporting cavity is overlapped with the basement, and the cross section of the supporting cavity is in the shape of one of a sector, a triangle, a wing and a square.
As an improvement of the scheme, the permanent side slope is also provided with a net hanging concrete spraying surface, a water discharging hole and a reinforced anchor rod, and the water discharging hole and the reinforced anchor rod are positioned on the net hanging concrete spraying surface.
As an improvement of the scheme, the reinforced anchor rod is inserted into rock soil behind the concrete surface sprayed by the suspended net, and the included angle between the reinforced anchor rod and the horizontal plane is 10-20 degrees; the drainage hole is arranged obliquely downwards.
As an improvement of the scheme, the outermost ends of two sides of the slope protection surface are side walls of the supporting cavity, wherein the middle part of the slope protection surface is separated by a cantilever retaining wall.
The utility model has simple structure, scientific and reasonable design and at least has the following specific advantages:
1. the structure treatment of a grading platform type is adopted to avoid the adverse effect of buildings caused by large height difference of a site, the method that a basement part is erected to form a supporting cavity is adopted, and the influence of the conventional design on huge extra rock soil and underground water side thrust generated by the side wall of the low-zone basement and the integral structure due to large height difference is avoided by combining a grading slope-releasing and anchor rod face-protecting/supporting structure.
2. The flood discharge ditch is arranged at the slope foot of the support cavity to discharge surface water, so that anti-floating design measures of the basement structure and design standards of water and soil pressure resistance of the side wall and the bottom plate of the basement are greatly reduced in a large range, and the construction difficulty and the reasonable control engineering cost of the basement structure are reduced.
3. The whole is beautiful, the structural performance is strong, and the cost is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise:
FIG. 1 is a schematic view of an embodiment of a cavity structure for supporting a large slope according to the present invention;
FIG. 2 is a schematic view of a graded table-ground-type side slope of a large-slope support cavity structure;
in the drawings: 1-grading a terrace type slope; 11-permanent side slope; 12-tableland; 13-flood discharge ditch; 14-natural ground base; 110-hanging net concrete spraying surface; 111-drain holes; 112-a strong anchor rod; 140-pile foundations; 2-supporting the cavity; 3-basement.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, which are illustrative of the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1 and 2, a large-gradient supporting cavity structure comprises a grading terrace-type side slope 1 and a supporting cavity 2 on the grading terrace-type side slope 1, wherein the grading terrace-type side slope 1 is provided with a plurality of permanent side slopes 11, a plurality of terraces 12, a flood discharge ditch 13 and a natural foundation 14 or a pile foundation 140, the terraces 12 and the permanent side slopes 11 are connected to form a slope protection surface, the flood discharge ditch 13 is positioned on the terrace 12 at the bottommost layer, and the natural foundation 14 and the pile foundation 140 are positioned on the terrace 12; the supporting cavity 2 spans the highest layer of the platform ground 12 and the lowest layer of the platform ground 12 so as to eliminate large height difference existing in the field; the supporting cavity 2 is overlapped with the basement 3, and the cross section of the supporting cavity 2 is in the shape of one of a sector, a triangle, a wing and a square. The characteristics of large height difference (10-20 meters) between different areas are combined, foundation pit excavation and side slope protection construction design during construction are considered, a basement 3 part overhead (supporting cavity 2) treatment method is adopted, and grading slope release and anchor rod facing or supporting structures are combined, so that the influence of huge additional rock soil and underground water side thrust on the side wall and the whole structure of the basement 3 in a low area due to the large height difference in a conventional design method is avoided
Further, a net hanging concrete spraying surface 110, a water discharging hole 111 and a strong anchor rod 112 are further arranged on the permanent side slope 11, and the water discharging hole 111 and the strong anchor rod 112 are located on the net hanging concrete spraying surface 110. Specifically, the drainage hole 111 is composed of a steel pipe anchor and water-guiding fibers, and the water-guiding fibers penetrate into the rock-soil layer to absorb water flowing to the drainage hole 111. The reinforced anchor rod 112 is inserted into rock and soil behind the net hanging concrete spraying surface 110, and the included angle between the reinforced anchor rod 112 and the horizontal plane is 10-20 degrees, so that the anchoring capability is improved; the drain holes 111 are disposed diagonally downward to facilitate drainage to the flood discharge trench 13.
Furthermore, the outermost ends of the two sides of the slope protection surface are side walls of the supporting cavity 2, wherein the middle part of the slope protection surface is separated by a cantilever retaining wall (the cantilever retaining wall is not marked in the attached drawing), and in practice, a stair and a railing for maintenance are arranged beside the cantilever retaining wall.
Application in practical projects:
item introduction: the project is located in a plot on the west side of the island of the east river of Borneo, Huizhou, the height difference of the field where the project is located is greatly changed, and the height difference of about 30 meters exists between the highest point and the lowest point. And large height differences (10-20 meters) are formed among the high-zone basement, the west-side field and the low-zone basement and between the low-zone basement and the east-side road.
Considering both excavation of foundation pit and slope protection construction design during construction, forming a supporting cavity 2 model by adopting a basement partial overhead and structural cavity treatment method, combining with graded slope-releasing reinforced anchor rod protective surface or supporting structure, avoiding huge additional rock soil and underground water side thrust influence on the side wall and the integral structure of the basement in a low region caused by large height difference in a conventional design method, arranging a flood discharge ditch 13 at the slope-releasing foot of the supporting cavity 2 to discharge surface water, greatly reducing anti-floating design measures of the structure of the basement 3 and design standards of water and soil pressure resistance of the side wall and the bottom plate of the basement in a large range, reducing construction difficulty of the basement 3 and reasonably controlling engineering cost, and controlling ground subsidence and pipeline caused by the need of backfilling a deep backfill soil layer outside the side wall of the basement in the conventional treatment method, Landscape, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a big slope support cavity structure, includes supporting cavity (2) on hierarchical platform ground formula side slope (1) and hierarchical platform ground formula side slope (1), its characterized in that:
the graded terrace type side slope (1) is provided with a plurality of permanent side slopes (11), a plurality of terraces (12), a flood discharge ditch (13), a natural foundation (14) and a pile foundation (140), the terraces (12) and the permanent side slopes (11) are connected to form a slope protection surface, the flood discharge ditch (13) is positioned on the terrace (12) at the bottommost layer, and the natural foundation (14) and the pile foundation (140) are positioned on the terrace (12); the supporting cavity (2) spans the highest layer of terrace (12) and the lowest layer of terrace (12) so as to eliminate large height difference of the field; the supporting cavity (2) is overlapped with the basement (3), and the cross section of the supporting cavity (2) is in the shape of one of a sector, a triangle, a wing and a square.
2. The heavy grade support cavity structure of claim 1, wherein: the permanent side slope (11) is also provided with a net hanging concrete spraying surface (110), a water discharging hole (111) and a reinforced anchor rod (112), and the water discharging hole (111) and the reinforced anchor rod (112) are positioned on the net hanging concrete spraying surface (110).
3. The heavy grade support cavity structure of claim 2, wherein: the reinforced anchor rod (112) is inserted into rock soil behind the net-hanging concrete spraying surface (110), and the included angle between the reinforced anchor rod (112) and the horizontal plane is 10-20 degrees; the drain hole (111) is arranged obliquely downward.
4. The heavy grade support cavity structure of claim 1, wherein: the outermost ends of two sides of the slope protection surface are side walls of the supporting cavity (2), wherein the middle part of the slope protection surface is separated by a cantilever retaining wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122221715.8U CN216108555U (en) | 2021-09-14 | 2021-09-14 | Large-gradient supporting cavity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122221715.8U CN216108555U (en) | 2021-09-14 | 2021-09-14 | Large-gradient supporting cavity structure |
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| Publication Number | Publication Date |
|---|---|
| CN216108555U true CN216108555U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122221715.8U Active CN216108555U (en) | 2021-09-14 | 2021-09-14 | Large-gradient supporting cavity structure |
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| CN (1) | CN216108555U (en) |
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2021
- 2021-09-14 CN CN202122221715.8U patent/CN216108555U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A large slope supporting cavity structure Effective date of registration: 20221129 Granted publication date: 20220322 Pledgee: Agricultural Bank of China Limited Guangzhou Beixiu Sub branch Pledgor: Guangzhou Fanghua International Design Group Co.,Ltd. Registration number: Y2022440000315 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |