CN210216493U - Drainage type tower crane foundation structure - Google Patents
Drainage type tower crane foundation structure Download PDFInfo
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- CN210216493U CN210216493U CN201920872282.2U CN201920872282U CN210216493U CN 210216493 U CN210216493 U CN 210216493U CN 201920872282 U CN201920872282 U CN 201920872282U CN 210216493 U CN210216493 U CN 210216493U
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Abstract
The utility model discloses a drainage type tower crane foundation structure, which comprises a tower crane foundation arranged in a foundation bearing platform, a pit bottom cushion layer, a first retaining wall, a second retaining wall, a water collecting pit, a backfill soil layer, a steel pipe template support and waterproof cloth laid on the steel pipe template support, wherein the bottom of the tower crane is arranged at the central position of the tower crane foundation, the first retaining wall is arranged around the tower crane and laid to enclose into a square shape, and the top surface of the first retaining wall is higher than the ground; the steel pipe template bracket is erected on the top surface of the first retaining wall; the water collecting pit is arranged in the middle of the tower crane foundation and is close to the position of the wall corner on the inner side surface of the first retaining wall, and waterproof layers are continuously laid on the upper surface of the water collecting pit and the middle of the tower crane foundation; and second retaining walls are built around the tower crane foundation. Set up steel bar support at first retaining wall top and form the manger plate layer, set up the sump pit and collect ponding well on tower crane foundation surface, regularly the drainage. The upper part is totally closed, and the lower part still leaves a sump, so the use is reliable and stable.
Description
Technical Field
The utility model relates to a construction field, especially drainage type tower crane foundation structure.
Background
The tower crane is the most common hoisting equipment on a construction site, and the tower crane is usually needed to hoist heavy building materials in the construction process. In order to stabilize the bottom of the tower crane and adapt to various soil qualities, the tower crane foundation is poured in advance at the bottom when the tower crane is installed. After the tower crane is installed and constructed, water is accumulated around the tower crane foundation. The problems existing at the present stage are as follows: firstly, the tower crane foundation is exposed outside, so that potential safety hazards exist; secondly, accumulated water at the tower crane foundation is discharged, and the discharge is time-consuming and labor-consuming. Third, there is no convenient drainage measure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drainage type tower crane foundation structure, it exposes outside to solve the tower crane basis, has the ponding of potential safety hazard, tower crane basis department, discharges the technical problem that wastes time and energy.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a drainage type tower crane foundation structure, which comprises a tower crane foundation arranged in a foundation bearing platform, a pit bottom cushion layer, a first retaining wall, a second retaining wall, a water collecting pit, a backfill soil layer, a steel pipe template bracket and a waterproof cloth laid on the steel pipe template bracket,
the bottom of the tower crane is arranged at the center of a tower crane foundation, the first retaining wall is arranged around the tower crane and is built to enclose a square shape, and the top surface of the first retaining wall is higher than the ground; the steel pipe template bracket is erected on the top surface of the first retaining wall;
the water collecting pit is arranged in the middle of the tower crane foundation and is close to the position of the wall corner on the inner side surface of the first retaining wall, and waterproof layers are continuously laid on the upper surface of the water collecting pit and the middle of the tower crane foundation;
building a second retaining wall around the tower crane foundation, wherein the top of the second retaining wall is flush with the top surface of the tower crane foundation; and a backfill soil layer is arranged among the first retaining wall, the second retaining wall and the foundation bearing platform side slope, and the top surface of the backfill soil layer is flush with the ground.
Further, the thickness of the pit bottom cushion layer is 100 mm.
Further, the size of the sump is 300 × 300 mm.
Further, the distance between the top surface of the tower crane foundation and the bottom surface of the foundation bearing platform is at least 3000 mm.
Further, the size of the tower crane foundation is 5.6m by 1.45 m; the tower crane foundation concrete grade is C35.
Further, two rows of reinforcing mesh are arranged in the first retaining wall; and a cement mortar layer is arranged on the outer surface of the first retaining wall.
Furthermore, two rows of reinforcing mesh are arranged in the second retaining wall; and a cement mortar layer is arranged on the outer surface of the second retaining wall.
Further, the top surface of the first retaining wall is at least 200mm higher than the ground.
Further, the slope angle of the waterproof layer is 3%.
The lightning protection device also comprises a lightning protection rod; the lightning protection pole bottom sets up in the tower crane foundation, and the tower crane foundation is stretched out to the lightning protection pole top, and the lightning protection pole top surface is higher than first retaining wall top surface 200mm at least.
The beneficial effects of the utility model are embodied in:
1, the utility model provides a drainage type tower crane foundation structure, simple structure, construction convenience, excellent in use effect, abundant utilization excavation foundation ditch's backfill plain soil. Do benefit to first retaining wall and second retaining wall and consolidated the foundation structure of tower crane.
2, the utility model provides a drainage type tower crane foundation structure sets up steel bar support at first retaining wall top and forms the manger plate layer, sets up the sump pit and collects ponding well on tower crane foundation surface, regularly drains. The upper part is totally closed, and the lower part still leaves a sump, so the use is reliable and stable.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of the present invention.
FIG. 3 is a schematic view of a lightning protection rod position.
Reference numerals: 1-a foundation bearing platform, 2-a tower crane foundation, 3-a pit bottom cushion layer, 4-a first retaining wall, 5-a water collecting pit, 6-a backfill soil layer, 7-a steel pipe template support, 8-waterproof cloth, 9-a second retaining wall, 10-a tower crane and 11-a waterproof layer.
Detailed Description
The technical solutions of the present invention are described in detail below by way of examples, which are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not for explaining the limitations of the technical solutions of the present invention.
As shown in fig. 1 and 2, the utility model provides a drainage type tower crane foundation structure, be 100 mm's bottom of the pit bed course 3, first retaining wall 4, second way retaining wall 9, the size is 300 a 300 mm's sump pit 5, backfill soil layer 6, steel pipe template support 7 and lay the tarpaulin 8 on steel pipe template support 7 including setting up tower crane foundation 2 in basic cushion cap 1.
The bottom of the tower crane 10 is arranged at the central position of the tower crane foundation 2, the first retaining wall 4 is arranged around the tower crane 10 and is built to enclose a square shape, and the top surface of the first retaining wall 4 is at least 200mm higher than the ground; the steel pipe template bracket 7 is erected on the top surface of the first retaining wall 4; the sump pit 5 sets up in the middle part of tower crane foundation 2, is close to the inside lateral wall corner position of first retaining wall 4. Waterproof layers 11 are continuously laid on the inner side surface of the first retaining wall 4, the upper surface of the water collecting pit 5 and the middle part of the tower crane foundation 2, and the slope angle of each waterproof layer 11 is 3%. A second retaining wall 9 is built around the tower crane foundation 2, and the top of the second retaining wall 9 is flush with the top surface of the tower crane foundation 2; and a backfill soil layer 6 with the top surface flush with the ground is arranged between the first retaining wall 4, the second retaining wall 9 and the slope of the foundation bearing platform 1.
Wherein, 2 top surfaces of tower crane foundation are apart from 1 bottom surface distance of basic cushion cap and are 3000mm at least. The size of the tower crane foundation 2 is 5.6m by 1.45 m; the concrete grade of the tower crane foundation 2 is C35.
Two rows of reinforcing mesh are arranged in the first retaining wall 4; the outer surface of the first retaining wall 4 is provided with a cement mortar layer. A double-row reinforcing mesh is arranged in the second retaining wall 9; and a cement mortar layer is arranged on the outer surface of the second retaining wall 9.
The specific steps of the structure are as follows:
firstly, after the installation and construction of the tower crane 10 are completed, the tower crane foundation 2 is prevented from being exposed outside, the backfilling soil around the tower crane 10 is tamped, a section of the first retaining wall 4 which is 200mm thick and is 200mm higher than the ground is arranged around the tower crane foundation 2 by taking the center of the tower crane foundation as the center, and double rows of C12@200 reinforcing steel bar nets are arranged in the retaining wall.
Secondly, 1:3 cement mortar plastering is applied to the surface of the foundation to find a slope according to 0.5 percent, finishing and leveling are carried out after the foundation base is installed, and a waterproof layer 11 is arranged to facilitate drainage.
Thirdly, a 300 multiplied by 300mm water collecting pit 5 is reserved on the inner side of the first retaining wall 4 and the surface of the tower crane foundation 2, reinforcing steel bars at the position of the water collecting pit 5 are bent and then welded with the face reinforcing steel bars in a single-side welding mode, and the welding length is not less than 10 d.
Fourthly, the top of the first retaining wall 4 is completely sealed by using the steel pipe template support 7, and the upper part of the steel pipe template support 7 is fully paved with a layer of color cloth to prevent rainwater from entering.
The tower crane 10 must be grounded for lightning protection as a metal object. The specific method comprises the following steps: when the tower crane foundation 2 is excavated, a 2.5 meter long L50 multiplied by 50 multiplied by 5mm angle steel is driven into the base of the position of the embedded part of the tower crane 10 to be used as a lightning protection rod 12, the angle steel is exposed out of 200mm above the foundation surface layer, a 2 meter long galvanized flat iron with the length of 40 multiplied by 4mm is welded on the angle steel, and the exposed tower crane foundation 2 is welded with the 2 sections of the tower crane foundation. The grounding resistance is less than or equal to 4 omega. The distance between the grounding body and the tower crane foundation 2 is not less than 500 mm. The bottom of the lightning protection rod 12 is arranged in the tower crane foundation 2, the top of the lightning protection rod 12 extends out of the tower crane foundation 2, and the top surface of the lightning protection rod 12 is higher than the top surface of the first retaining wall 4 by at least 200 mm. As shown in fig. 3.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. Drainage formula tower crane foundation structure, its characterized in that: comprises a tower crane foundation (2) arranged in a foundation bearing platform (1), a pit bottom cushion layer (3), a first retaining wall (4), a second retaining wall (9), a water collecting pit (5), a backfill soil layer (6), a steel pipe template support (7) and waterproof cloth (8) laid on the steel pipe template support (7),
the bottom of the tower crane (10) is arranged at the central position of the tower crane foundation (2), the first retaining wall (4) is arranged around the tower crane (10) and is laid to enclose a square shape, and the top surface of the first retaining wall (4) is higher than the ground; the steel pipe template bracket (7) is erected on the top surface of the first retaining wall (4);
the water collecting pit (5) is arranged in the middle of the tower crane foundation (2) and close to the inner side wall corner of the first retaining wall (4), and a waterproof layer (11) is continuously laid on the upper surface of the water collecting pit (5) and the middle of the tower crane foundation (2);
a second retaining wall (9) is built around the tower crane foundation (2), and the wall top of the second retaining wall (9) is flush with the top surface of the tower crane foundation (2); and a backfill soil layer (6) is arranged between the first retaining wall (4), the second retaining wall (9) and the side slope of the foundation bearing platform (1), and the top surface of the backfill soil layer (6) is flush with the ground.
2. The drainage type tower crane foundation structure according to claim 1, wherein the pit bottom pad layer (3) has a thickness of 100 mm.
3. Drainage tower crane substructure according to claim 1, characterized in that the size of the catchment pit (5) is 300 x 300 mm.
4. The drainage type tower crane foundation structure of claim 1, wherein the distance from the top surface of the tower crane foundation (2) to the bottom surface of the foundation bearing platform (1) is at least 3000 mm.
5. The drainage tower crane substructure of claim 1, characterized in that the tower crane substructure (2) has dimensions of 5.6m by 1.45 m; the concrete grade of the tower crane foundation (2) is C35.
6. The drainage type tower crane foundation structure according to claim 1, wherein a double row of reinforcing mesh is arranged in the first retaining wall (4); and a cement mortar layer is arranged on the outer surface of the first retaining wall (4).
7. The drainage tower crane foundation structure of claim 1, wherein a double row of reinforcing mesh is arranged in the second retaining wall (9); and a cement mortar layer is arranged on the outer surface of the second retaining wall (9).
8. The drainage tower crane foundation structure of claim 1, wherein the top surface of the first retaining wall (4) is at least 200mm higher than the ground.
9. The drainage type tower crane foundation structure according to claim 1, wherein the slope angle of the waterproof layer (11) is 3%.
10. The drainage tower crane substructure of claim 1, further comprising a lightning protection rod (12); lightning protection pole (12) bottom sets up in tower crane foundation (2), and tower crane foundation (2) are stretched out at lightning protection pole (12) top, and lightning protection pole (12) top surface is higher than first retaining wall (4) top surface 200mm at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872282.2U CN210216493U (en) | 2019-06-12 | 2019-06-12 | Drainage type tower crane foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872282.2U CN210216493U (en) | 2019-06-12 | 2019-06-12 | Drainage type tower crane foundation structure |
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| Publication Number | Publication Date |
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| CN210216493U true CN210216493U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920872282.2U Active CN210216493U (en) | 2019-06-12 | 2019-06-12 | Drainage type tower crane foundation structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863355A (en) * | 2021-10-18 | 2021-12-31 | 中电建十一局工程有限公司 | Waterproof construction method for large-volume bearing platform in water |
| CN115467359A (en) * | 2022-07-06 | 2022-12-13 | 中建八局第三建设有限公司 | Construction method of lower horizontal tower crane foundation |
-
2019
- 2019-06-12 CN CN201920872282.2U patent/CN210216493U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863355A (en) * | 2021-10-18 | 2021-12-31 | 中电建十一局工程有限公司 | Waterproof construction method for large-volume bearing platform in water |
| CN113863355B (en) * | 2021-10-18 | 2023-02-24 | 中电建十一局工程有限公司 | Waterproof construction method for large-volume bearing platform in water |
| CN115467359A (en) * | 2022-07-06 | 2022-12-13 | 中建八局第三建设有限公司 | Construction method of lower horizontal tower crane foundation |
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