CN211898415U - Support replacing structure for half-cover excavation foundation pit support - Google Patents
Support replacing structure for half-cover excavation foundation pit support Download PDFInfo
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- CN211898415U CN211898415U CN201922301960.2U CN201922301960U CN211898415U CN 211898415 U CN211898415 U CN 211898415U CN 201922301960 U CN201922301960 U CN 201922301960U CN 211898415 U CN211898415 U CN 211898415U
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- bracing
- foundation ditch
- anchor bar
- side wall
- bottom plate
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Abstract
The utility model discloses a trade and prop structure for half lid digs excavation supporting, should trade the bracing structure for setting up the bracing between major structure side wall and foundation ditch bottom plate, the upper end of bracing is connected with the major structure side wall through pre-buried steel sheet I the back of pre-buried steel sheet I is equipped with the anchor bar I of fixing in the major structure side wall, anchor bar I is connected with the arrangement of reinforcement of major structure side wall, the lower extreme of bracing is connected with the foundation ditch bottom plate through pre-buried steel sheet II the back of pre-buried steel sheet II is equipped with anchor bar II of fixing in the foundation ditch bottom plate, anchor bar II is connected with the arrangement of reinforcement of foundation ditch bottom plate. The utility model discloses a bracing structure, bracing adopt the fork truck cooperation can accomplish the installation, and fork truck removes the convenience in the foundation ditch, can avoid the use of crane, and consequently, it is very convenient to trade the construction of propping, can accomplish half lid very in time and dig the interior trade of foundation ditch and prop, and then reduce the possibility that foundation ditch retaining structure destroyed, reduce the construction risk, guarantee construction safety and construction quality.
Description
Technical Field
The utility model relates to a construction technical field specifically is a trade and prop structure that is used for half lid to dig excavation supporting.
Background
With the rapid development of the economy of China, the rail transit construction is developed in large and medium-sized cities in succession. The subway station is usually constructed by an open cut and smooth construction method, but because the construction area is usually positioned in a busy section in the center of a city, in order to ensure the road traffic, the construction is usually carried out by a half-cover cut and smooth construction method, and the excavation depth of a foundation pit is deeper. The horizontal support is generally adopted as a temporary support of the foundation pit by combining the construction sequence of the main structure of the station. Along with the progress of station major structure construction, when the level that arranges in advance propped the subsequent structural construction of influence, need demolish the level of advance and prop, erect on the structure that has accomplished and trade and prop to make things convenient for subsequent structural construction. However, due to the influence of the cover plate above the half-covered excavation foundation pit, the operation space is narrow, and in addition, structures such as full-hall red scaffolds are arranged in the foundation pit, if a common horizontal support replacing structure is adopted, not only is construction difficult, but also adverse effects can be caused on the existing structure in the foundation pit, and construction risks can be generated seriously, so that the construction problems such as foundation pit support structure damage, foundation pit collapse and the like are caused, and therefore, the problem in subway construction is that how to conveniently realize rapid support replacement in the foundation pit of the half-covered excavation construction.
Disclosure of Invention
The utility model discloses a solve the technical problem that exists among the known art and provide a support structure trades that is used for half lid to dig excavation supporting, this structure is convenient for dig the realization in the foundation ditch at half lid and trade and prop to can reduce the construction risk, guarantee that the construction goes on smoothly safely.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: the utility model provides a trade and prop structure for half lid digs excavation supporting, should trade the bracing structure for setting up the bracing between major structure side wall and foundation ditch bottom plate, the upper end of bracing is connected with the major structure side wall through pre-buried steel sheet I the back of pre-buried steel sheet I is equipped with anchor bar I of fixing in the major structure side wall, anchor bar I is connected with the arrangement of reinforcement of major structure side wall, the lower extreme of bracing is connected with the foundation ditch bottom plate through pre-buried steel sheet II the back of pre-buried steel sheet II is equipped with anchor bar II of fixing in the foundation ditch bottom plate, anchor bar II is connected with the arrangement of reinforcement of foundation ditch bottom plate.
The inclined strut is made of H-shaped steel.
The anchor bar I and the embedded steel plate I and the anchor bar II and the embedded steel plate II are connected through plug welding seams.
The utility model has the advantages and positive effects that: the inclined strut structure is arranged between the main structure side wall and the foundation pit bottom plate, the inclined strut can be installed by adopting the cooperation of the forklift, the forklift can move conveniently in the foundation pit, and the use of a crane can be avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a main structure side wall; 2. anchor bars I; 3. embedding a steel plate I; 4. bracing; 5. pre-burying a steel plate II; 6. a foundation pit bottom plate; 7. and anchor bars II.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified and will be described in detail with reference to the accompanying drawings:
please refer to fig. 1, a support replacing structure for a half-covered excavation foundation pit support, the support replacing structure is an inclined support 4 arranged between a main structure side wall 1 and a foundation pit bottom plate 6, the upper end of the inclined support 4 is connected with the main structure side wall 1 through an embedded steel plate i 3, an anchor bar i 2 fixed in the main structure side wall 1 is arranged on the back of the embedded steel plate i 3, the anchor bar i 2 is connected with a reinforcement of the main structure side wall 1, the lower end of the inclined support 4 is connected with the foundation pit bottom plate 6 through an embedded steel plate ii 5, an anchor bar ii 7 fixed in the foundation pit bottom plate 6 is arranged on the back of the embedded steel plate ii 5, and the anchor bar ii 7 is connected with the reinforcement of the foundation pit bottom plate 6.
In this embodiment, the diagonal brace 4 is made of 400mm × 400mm H-section steel, and has a strong bending resistance in all directions. The embedded steel plate I3 and the embedded steel plate II 5 are Q235 steel plates with the diameter of 800mm multiplied by 20mm, and the anchor bars I2 and the anchor bars II 7 are twisted steel bars with the diameter of 16 mm and the length of 600 mm. The anchor bar I2 and the embedded steel plate I3 and the anchor bar II 7 and the embedded steel plate II 5 are connected and fixed through plug welding seams.
When constructing major structure side wall 1, accomplish the construction of dowel I2 and pre-buried steel sheet I3, when construction foundation ditch bottom plate 6, accomplish the construction of dowel II 7 and pre-buried steel sheet II 5, when trading to prop, accomplish bracing 4 and pre-buried steel sheet I3 and pre-buried steel sheet II 5's welding.
Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, which is within the scope of the present invention.
Claims (3)
1. The utility model provides a trade and prop structure for half lid digs excavation supporting, its characterized in that should trade the bracing structure for setting up the bracing between major structure side wall and foundation ditch bottom plate, the upper end of bracing is connected with the major structure side wall through pre-buried steel sheet I the back of pre-buried steel sheet I is equipped with anchor bar I of fixing in the major structure side wall, anchor bar I is connected with the arrangement of reinforcement of major structure side wall, the lower extreme of bracing is connected with the foundation ditch bottom plate through pre-buried steel sheet II the back of pre-buried steel sheet II is equipped with anchor bar II of fixing in the foundation ditch bottom plate, anchor bar II is connected with the arrangement of reinforcement of foundation ditch bottom plate.
2. The bracing change structure for half-cap excavation foundation pit support according to claim 1, wherein the inclined strut is made of H-shaped steel.
3. The support replacing structure for the half-covered excavation foundation pit support according to claim 1, wherein the anchor bar I and the embedded steel plate I and the anchor bar II and the embedded steel plate II are connected by plug welding seams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922301960.2U CN211898415U (en) | 2019-12-19 | 2019-12-19 | Support replacing structure for half-cover excavation foundation pit support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922301960.2U CN211898415U (en) | 2019-12-19 | 2019-12-19 | Support replacing structure for half-cover excavation foundation pit support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211898415U true CN211898415U (en) | 2020-11-10 |
Family
ID=73293991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922301960.2U Active CN211898415U (en) | 2019-12-19 | 2019-12-19 | Support replacing structure for half-cover excavation foundation pit support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211898415U (en) |
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2019
- 2019-12-19 CN CN201922301960.2U patent/CN211898415U/en active Active
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