CN114319438A - Basement back-jacking temporary steel pipe supporting method - Google Patents
Basement back-jacking temporary steel pipe supporting method Download PDFInfo
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- CN114319438A CN114319438A CN202210047487.3A CN202210047487A CN114319438A CN 114319438 A CN114319438 A CN 114319438A CN 202210047487 A CN202210047487 A CN 202210047487A CN 114319438 A CN114319438 A CN 114319438A
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Abstract
A basement back-jacking temporary steel pipe supporting method is characterized by comprising the following steps: a. checking the bearing capacity of the top plate of the basement, setting a back-jacking area, configuring a suitable support steel pipe, b, processing, manufacturing and setting the steel pipe, c, protecting a reserved hole by using double faced adhesive tape, and d, fixing the steel pipe and pouring concrete. The basement back-jacking temporary steel pipe supporting method has the advantages that the space occupancy rate of the basement structure is small, mutual transfer of materials is facilitated in later construction, follow-up operation can be completed by fully utilizing large construction machinery, the labor efficiency is improved, and the labor cost is greatly reduced.
Description
Technical Field
The invention relates to a steel pipe supporting method, in particular to a temporary steel pipe supporting method for basement roof returning.
Background
The support is set up about areas such as material yard, temporary road post-cast strip in the basement temporary support setting, and the traditional mode adopts the scaffold frame mostly to support as the back of the basement roof, though the destruction of load to the overall stability of structure can be avoided effectively to these methods, guarantees the safety of structure, but is great to the structural space occupancy of basement, and is great to the cross operation influence between the mutual transportation of follow-up construction material, construction machinery in the follow-up.
The above-mentioned inconveniences and problems are associated with the known scaffolding back-up support.
Disclosure of Invention
The invention aims to provide a basement back-jacking temporary steel pipe supporting method which is safe, reliable and capable of fully utilizing underground structural space.
In order to achieve the purpose, the technical solution of the invention is as follows:
a basement back-jacking temporary steel pipe supporting method is characterized by comprising the following steps:
a. checking the bearing capacity of the top plate of the basement, setting a back-jacking area, and configuring a suitable support steel pipe
Checking the bearing capacity of the basement top plate, setting a back-jacking area of the basement top plate, selecting a supporting steel pipe meeting the requirement of the bearing capacity, and intercepting the proper length of the supporting steel pipe according to the setting position of the supporting steel pipe in advance;
b. processing, manufacturing and setting steel pipe
Two ends of the steel pipe are firmly welded by steel plates respectively, and holes are reserved at the corner positions of the lower steel plate and are fixed with the basement bottom plate by expansion bolts; the upper steel plate is flush with the bottom surface of the template and fixed with the structural embedded steel plate by high-strength bolts, and a hole is reserved in the template in advance;
c. double-faced adhesive tape protection for reserved hole
A hole is reserved in the template in advance, the periphery of the hole is protected by double faced adhesive tape, slurry leakage is prevented when concrete is poured, and later steel pipe dismantling is facilitated;
d. fixing steel pipe and pouring concrete
After the template is paved, the steel pipe is fixed in place, deviation is prevented when concrete is poured, and the verticality of the steel pipe is guaranteed.
The basement back-jacking temporary steel pipe supporting method can be further realized by adopting the following technical measures.
In the method, the specification of the support steel pipe is not less than DN 150.
In the method, the steel pipe is arranged at a position where the basement top plate is stressed greatly.
The method, wherein the back-jacking region is provided with at least four steel pipe supports.
After the technical scheme is adopted, the basement back-jacking temporary steel pipe supporting method has the following advantages:
1. the space occupancy rate of the basement structure is small;
2. in later construction, mutual transfer among materials is facilitated, and subsequent operation can be completed by fully utilizing large construction machinery;
3. the labor efficiency is improved, and the labor cost is greatly reduced.
Drawings
Fig. 1 is a schematic view of a basement back-jacking temporary steel pipe support structure according to an embodiment of the invention;
FIG. 2 is a detail view of the portion P of FIG. 1;
fig. 3 is a detailed view of the portion Q of fig. 1.
In the figure: 1 basement roof, 2 templates, 3 preformed holes, 4 high-strength bolts, 5 pre-buried steel sheets of structure, 6 double faced adhesive tape, 7 welding points, 8 steel pipes, 9 expansion bolts, 10 steel pipe bottom steel sheets, 11 steel pipe top steel sheets, 12 basement bottom plates.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
The temporary steel pipe supporting technology for the basement roof mainly adopts the galvanized steel pipe with the specification of DN150 to arrange temporary support below the basement roof, has the same effect as the temporary support of the traditional scaffold, and is used for avoiding the damage of external load to the stability of the main structure. In the implementation, the temporary steel pipe support is mainly applied to areas with overlarge external loads, such as a post-settlement pouring zone, a temporary construction trunk road, a construction elevator and a material yard.
Referring to fig. 1-3, fig. 1 is a schematic view of a basement back-jacking temporary steel pipe supporting structure according to an embodiment of the invention, fig. 2 is a detailed view of a P portion of fig. 1, and fig. 3 is a detailed view of a Q portion of fig. 1.
Firstly, checking the bearing capacity of the basement top plate 1 according to the maximum external load value, selecting a steel pipe support meeting the bearing capacity requirement through checking, wherein the temporary steel pipe support adopts a steel pipe with the specification of DN150, and the length of the temporary steel pipe support is cut out in advance according to different setting positions. Then, the two ends of the steel pipe 8 are respectively welded and fixed by the steel plate welding points 7 of 250mm x 3mm, holes are reserved at the corner positions of the lower steel plate, and the steel plate 10 at the bottom of the steel pipe is fixed with the basement bottom plate 12 by the M14 expansion bolts 9. Steel plate 11 at the top of the steel pipe is flush with the bottom surface of template 2 and is fixed with pre-buried 350mm 2mm steel plate 5 of structure with M14 high-strength bolt 4, and opening 3 is reserved in advance to the template, protects with 30mm 3mm double faced adhesive tape 6 all around, leaks when preventing to pour the concrete, and the later stage steel pipe of being convenient for is demolishd. And after the template is paved, the DN150 steel pipe is fixed in place, deviation is prevented when concrete is poured, and the verticality is ensured. The steel pipes are generally arranged at the positions of the plate with larger stress, and at least four steel pipe supports are ensured in each back-jacking area.
Compared with the traditional scaffold supporting technology, the basement back-jacking temporary steel pipe supporting method has the advantages that on the premise of ensuring the safety of the structure, the space occupancy rate of the basement structure is small, mutual transfer of materials is facilitated in later construction, follow-up operation can be completed by fully utilizing large construction machinery, the labor efficiency is improved, and the labor cost is greatly reduced.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.
Claims (4)
1. A basement back-jacking temporary steel pipe supporting method is characterized by comprising the following steps:
a. checking the bearing capacity of the top plate of the basement, setting a back-jacking area, and configuring a suitable support steel pipe
Checking the bearing capacity of the basement top plate, setting a back-jacking area of the basement top plate, selecting a supporting steel pipe meeting the requirement of the bearing capacity, and intercepting the proper length of the supporting steel pipe according to the setting position of the supporting steel pipe in advance;
b. processing, manufacturing and setting steel pipe
Two ends of the steel pipe are firmly welded by steel plates respectively, and holes are reserved at the corner positions of the lower steel plate and are fixed with the basement bottom plate by expansion bolts; the upper steel plate is flush with the bottom surface of the template and fixed with the structural embedded steel plate by high-strength bolts, and a hole is reserved in the template in advance;
c. double-faced adhesive tape protection for reserved hole
A hole is reserved in the template in advance, the periphery of the hole is protected by double faced adhesive tape, slurry leakage is prevented when concrete is poured, and later steel pipe dismantling is facilitated;
d. fixing steel pipe and pouring concrete
After the template is paved, the steel pipe is fixed in place, deviation is prevented when concrete is poured, and the verticality of the steel pipe is guaranteed.
2. The method for supporting the temporary steel pipe at the back top of the basement according to claim 1, wherein the specification of the supporting steel pipe is equal to or larger than DN 150.
3. The method for supporting the temporary steel pipe of the basement roof back as claimed in claim 1, wherein the steel pipe is arranged at a position where the stress on the top plate of the basement is large.
4. The method for supporting the temporary steel tube in the basement roof-returning area as claimed in claim 1, wherein the roof-returning area is provided with at least four steel tube supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047487.3A CN114319438A (en) | 2022-01-17 | 2022-01-17 | Basement back-jacking temporary steel pipe supporting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047487.3A CN114319438A (en) | 2022-01-17 | 2022-01-17 | Basement back-jacking temporary steel pipe supporting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114319438A true CN114319438A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210047487.3A Pending CN114319438A (en) | 2022-01-17 | 2022-01-17 | Basement back-jacking temporary steel pipe supporting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116290867A (en) * | 2023-02-28 | 2023-06-23 | 中国五冶集团有限公司 | Construction method for temporarily supporting and reinforcing basement beam plates by using constructional column core column |
-
2022
- 2022-01-17 CN CN202210047487.3A patent/CN114319438A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116290867A (en) * | 2023-02-28 | 2023-06-23 | 中国五冶集团有限公司 | Construction method for temporarily supporting and reinforcing basement beam plates by using constructional column core column |
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