CN112575799A - Tool type support for replacing support in foundation pit fertilizer groove - Google Patents
Tool type support for replacing support in foundation pit fertilizer groove Download PDFInfo
- Publication number
- CN112575799A CN112575799A CN202110093379.5A CN202110093379A CN112575799A CN 112575799 A CN112575799 A CN 112575799A CN 202110093379 A CN202110093379 A CN 202110093379A CN 112575799 A CN112575799 A CN 112575799A
- Authority
- CN
- China
- Prior art keywords
- support
- short section
- nut
- dowel bar
- force control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 210000002445 nipple Anatomy 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a tool type support for replacing a support in a foundation pit fertilizer tank, which is mainly used for adjusting a supporting point of a foundation pit enclosure structure in the construction stage of an underground structure and realizing safe and orderly transfer and redistribution of the stress of the enclosure structure. The tool type support comprises a short section support, an anchor bolt, a fixing nut, a dowel bar, a limiting nut, a force control nut, a force bearing plate, a flexible protection pad and a sensor. The short section supporting main body is a rolled section steel or a steel structure welding part with an open structure, and end plates are arranged at two ends of the short section supporting main body. One end of the short section support is supported on the vertical enclosing structure, and the other end of the short section support is supported on the basement structure through a force transmission rod and a force bearing plate. One end of the dowel bar is fixed on an end plate supported by the short section by adopting a limit nut and a force control bolt, and the other end of the dowel bar is anchored on the force bearing plate. The outer side of the bearing plate is provided with a flexible protection pad for protecting the waterproof structure of the basement. And the nipple support is provided with a sensor for monitoring the prestress application of the power bolt and the axial force condition of the nipple support after the support replacement is finished.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a tool type support for replacing a support in a foundation pit fertilizer tank.
Background
The foundation pit engineering generally goes through foundation pit excavation and basement structure construction stage, and in order to make things convenient for basement structure construction, leaves certain space between vertical retaining structure and the basement structure, is fertile groove. In the foundation pit excavation stage, an inner support is arranged on the vertical enclosure structure to balance the load pressure outside the foundation pit so as to meet the stress and deformation control requirements of the enclosure structure; and in the basement structure construction stage, namely after the foundation pit is excavated to the basement, the basement structure is constructed upwards from the bottom plate in sequence, when the basement structure is constructed to be close to the lower part of the inner support, the inner support needs to be disassembled in order to not hinder the continuous upward construction of the basement structure, the replacement support is arranged by using the basement structure before the disassembly, the support point of the enclosure structure is adjusted, the safe and effective transfer and redistribution of the stress of the enclosure structure are realized, and the mission of the foundation pit is continued.
The conventional support replacing method is to arrange a reinforced concrete support replacing plate strip, pour the support replacing plate strip and an underground structure synchronously, remove an upper inner support after the maintenance strength of the support replacing plate strip meets the design requirement, and complete support replacing construction. The method has the following problems: maintenance of the concrete of the support plate strip needs to be waited for, usually more than 10 days, and the construction period is influenced; the waterproof outer wall of the basement structure cannot be looped at the position of the support plate replacement belt, so that the hidden danger of outer wall leakage exists; the area occupied by the supporting plate is large, most areas of the fertilizer tank are shielded, the difficulty of the fertilizer tank backfilling construction in the later period is increased, and the backfilling quality of the fertilizer tank is influenced.
Therefore, there is a need to provide a more optimal solution to the above problems.
Disclosure of Invention
The invention provides a tool type support for making up the defects of the support changing structure, the tool type support can be used after being assembled, the waterproof and the fertilizer groove backfilling construction of the basement main body structure are not influenced, the construction efficiency is improved, and the construction quality is ensured.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a trade instrument formula that is used for fertile inslot of foundation ditch to prop supports arranges the fertile groove between vertical envelope and basement structure, accomplishes the trade of basement structure construction stage and props its characterized in that: the component forming the tool type support comprises a short section support, an anchor bolt, a fixing nut, a dowel bar, a limiting nut, a force control nut, a force bearing plate, a flexible protection pad and a sensor;
the short section supporting main body is a rolled section steel or a steel structure welding piece with an open structure;
end plates are arranged at two ends of the short section support, and a plurality of preformed holes are formed in the end plates;
one end of the short section support is abutted against the vertical enclosure structure through an anchor bolt, an end plate and a fixing nut, and the other end of the short section support is supported on the basement structure through a dowel bar, a limiting nut, a force control nut and a force bearing plate;
the dowel bar is provided with threads, one end of the dowel bar is fixed on an end plate supported by the short section by adopting a limiting nut and a force control bolt, and the other end of the dowel bar is anchored on the force bearing plate;
the flexible protection pad is arranged on the outer side of the bearing plate;
the sensor is arranged on the nipple support.
The short section support and the vertical enclosure structure are fixed through a plurality of anchor bolts and fixing nuts;
one end of each anchor bolt is connected with the vertical enclosure structure in an implanted or embedded mode;
the relative position relation of each anchor bolt on the vertical enclosure structure is consistent with the position of a preformed hole arranged on the end plate;
the other end of each anchor bolt penetrates through the reserved hole, and the short section is supported and abutted to the vertical enclosure structure through the fixing nuts arranged on the inner side of the end plate in a screwing mode.
A plurality of dowel bars are arranged between the short section support and the basement structure;
the arrangement positions of the dowel bars are matched with the positions of the preformed holes of the end plate;
one end of the dowel bar sequentially penetrates through the force control nut, the preformed hole of the end plate and the limiting nut, and the dowel bar is fastened on the short section support through the limiting nut and the force control nut which are respectively arranged on two sides of the end plate;
the other end of the dowel bar is anchored on the bearing plate, and the exposed length of the dowel bar outside the end plate is increased by adjusting the positions of the limiting nut and the force control nut, so that the bearing plate and the flexible protection pad outside the bearing plate are abutted against the basement structure.
The limiting nut and the force control nut move on the dowel bar through threads on the dowel bar;
gaps are reserved between the limiting nuts and the end plates positioned between the limiting nuts and the force control nuts before the force control nuts are screwed to the target positions;
the force control nut continuously screws and extrudes the end plate to realize the application of prestress supported by the short section.
The sensor is a strain sensor, and monitoring of the short section supporting shaft force is achieved by feeding back short section supporting strain.
The length of the short section support is smaller than the net distance between the vertical enclosing structure and the basement structure.
The increase of the supporting length of the short sections is realized through the coaxial connection of the plurality of short section supports, and the short section supports are connected through bolts.
Compared with the prior art, the invention has the following advantages:
(1) the tool type support main body is an open type hot rolled section steel or a steel structure welding piece, maintenance is not needed after construction, the support replacement efficiency is improved, and the construction period is shortened;
(2) the tool type support is installed after the basement outer wall is subjected to waterproof construction to the elevation above the support changing node, the waterproof structure is protected through the flexible protection pad attached to the outside of the tool type support, the continuous arrangement of basement outer wall waterproofing is achieved, and the outer wall leakage hidden danger is reduced;
(3) the tool type support can apply prestress, so that the reliable transmission of force between the vertical enclosure structure and the basement structure is realized, the safe and effective adjustment, transfer and redistribution of the enclosure structure stress are realized, the change of the support shaft force is monitored at any time through the sensor, and the use risk of the foundation pit is reduced;
(4) the tool type support is small in size, and a plurality of supports can be used together, so that a convenient operation space is provided for the backfill of the fertilizer tank at the later stage;
(5) the tool type support is installed in an assembly mode, and after the service cycle of the foundation pit is finished, the main components can be detached, recycled and reused, so that energy conservation, emission reduction and green construction are realized.
Drawings
The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a tool type support structure for replacing a support in a foundation pit fertilizer trough according to the invention;
FIG. 2 is a schematic diagram of a supporting structure of the short joint.
Code description in the figure: 1-basement structure; 2-vertical enclosing structures; 3, internal support; 4-anchor bolt; 5-fixing the nut; 6-short section supporting; 61-nipple support body; 62-a terminal plate; 621-preformed hole; 7-dowel bars; 8-a limit nut; 9-force control nut; 10-bearing plate; 11-a flexible pad; 12-basement outer wall waterproof structure; 13-a sensor.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
As shown in fig. 1, for a specific foundation pit supporting project, before the support is replaced, the vertical enclosure structure 2 and the inner support 3 form a supporting structure of the foundation pit, and when the basement structure 1 and the basement exterior wall waterproof structure 12 are constructed to the position near the lower part of the inner support 3, the inner support 3 needs to be removed, so that the basement structure 1 and the basement exterior wall waterproof structure 12 can continue to be constructed upwards, and at the moment, the force born by the inner support 3 needs to be transferred. The anchor bolt 4 anchors one end of the anchor bolt into the vertical enclosure structure 2 in an early pre-embedding or later implanting mode. The force control bolt 9 is screwed after the dowel bar 7 is connected with the force bearing plate 10, then the force control bolt passes through a preformed hole 621 of the end plate 62 on one side of the short section support 6, the limit nut 8 is screwed on the dowel bar 7 from the inner side of the short section support 6, the flexible protection pad 11 is attached to the outer side of the force bearing plate 10, the sensor 13 is fixed to the surface of the short section support 6, and accordingly preliminary assembly of the tool type support is completed. Through adjusting stop nut 8, accuse power bolt 9, will accomplish the instrument formula support of preliminary assembly and put into the space between vertical envelope 2 and the basement structure 1, crab-bolt 4 penetrates nipple joint support 6's inside through the preformed hole 621 of end board 62, adopts fixation nut 5, is fixed in vertical envelope 2 with nipple joint support 6. Adjusting limit nut 8, accuse power bolt 9, making dowel steel 7 and bearing plate 10 prop up in basement structure 1 completely, the prestressing force application of instrument formula support is realized to the data through sensor 13 feedback, and later stage sensor 13 provides axial force monitoring data for instrument formula support.
As shown in fig. 2, the main structure of the short section support 6 includes a short section support main body 61, which is a hot rolled section steel or a welded structure of a steel structure with an open structure, and has a cross-sectional form of "H" shape, lattice configuration or box shape. The two ends of the end plate are respectively welded with an end plate 62, and the end plate 62 is symmetrically and uniformly provided with reserved holes 621. The position relation of the anchor bolt 4 on the vertical building envelope 2 and the position relation of the dowel bar 7 on the bearing plate 10 are both matched with the position of the preformed hole 621 on the end plate 62.
The above detailed description of the embodiments of the present invention provides those skilled in the art with changes in the form and details of the embodiments and applications. The protection scope of the present invention is not limited to the technical solutions mentioned in the embodiments, and any technical solutions suggested by the present invention fall into the protection scope of the present invention.
Claims (7)
1. The utility model provides a trade instrument formula that is used for fertile inslot of foundation ditch to prop supports arranges the fertile groove between vertical envelope and basement structure, accomplishes the trade of basement structure construction stage and props its characterized in that: the component forming the tool type support comprises a short section support, an anchor bolt, a fixing nut, a dowel bar, a limiting nut, a force control nut, a force bearing plate, a flexible protection pad and a sensor;
the short section supporting main body is a rolled section steel or a steel structure welding piece with an open structure;
end plates are arranged at two ends of the short section support, and a plurality of preformed holes are formed in the end plates;
one end of the short section support is abutted against the vertical enclosure structure through an anchor bolt, an end plate and a fixing nut, and the other end of the short section support is supported on the basement structure through a dowel bar, a limiting nut, a force control nut and a force bearing plate;
the dowel bar is provided with threads, one end of the dowel bar is fixed on an end plate supported by the short section by adopting a limiting nut and a force control bolt, and the other end of the dowel bar is anchored on the force bearing plate;
the flexible protection pad is arranged on the outer side of the bearing plate;
the sensor is arranged on the nipple support.
2. The tool type support for replacing the support in the foundation pit fertilizer trough as claimed in claim 1, wherein: the short section support and the vertical enclosure structure are fixed through a plurality of anchor bolts and fixing nuts;
one end of each anchor bolt is connected with the vertical enclosure structure in an implanted or embedded mode;
the relative position relation of each anchor bolt on the vertical enclosure structure is consistent with the position of a preformed hole arranged on the end plate;
the other end of each anchor bolt penetrates through the reserved hole, and the short section is supported and abutted to the vertical enclosure structure through the fixing nuts arranged on the inner side of the end plate in a screwing mode.
3. The tool type support for replacing the support in the foundation pit fertilizer trough as claimed in claim 1, wherein: a plurality of dowel bars are arranged between the short section support and the basement structure;
the arrangement positions of the dowel bars are matched with the positions of the preformed holes of the end plate;
one end of the dowel bar sequentially penetrates through the force control nut, the preformed hole of the end plate and the limiting nut, and the dowel bar is fastened on the short section support through the limiting nut and the force control nut which are respectively arranged on two sides of the end plate;
the other end of the dowel bar is anchored on the bearing plate, and the exposed length of the dowel bar outside the end plate is increased by adjusting the positions of the limiting nut and the force control nut, so that the bearing plate and the flexible protection pad outside the bearing plate are abutted against the basement structure.
4. The tool type support for replacing the support in the foundation pit fertilizer trough as claimed in claim 1, wherein: the limiting nut and the force control nut move on the dowel bar through threads on the dowel bar;
gaps are reserved between the limiting nuts and the end plates positioned between the limiting nuts and the force control nuts before the force control nuts are screwed to the target positions;
the force control nut continuously screws and extrudes the end plate to realize the application of prestress supported by the short section.
5. The tool type support for replacing the support in the foundation pit fertilizer trough as claimed in claim 1, wherein: the sensor is a strain sensor, and monitoring of the short section supporting shaft force is achieved by feeding back short section supporting strain.
6. The tool type support for replacing the support in the foundation pit fertilizer trough as claimed in claim 1, wherein: the length of the short section support is smaller than the net distance between the vertical enclosing structure and the basement structure.
7. The tool type support for replacing the support in the foundation pit fertilizer trough as claimed in claim 1, wherein: the increase of the supporting length of the short sections is realized through the coaxial connection of the plurality of short section supports, and the short section supports are connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110093379.5A CN112575799A (en) | 2021-01-25 | 2021-01-25 | Tool type support for replacing support in foundation pit fertilizer groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110093379.5A CN112575799A (en) | 2021-01-25 | 2021-01-25 | Tool type support for replacing support in foundation pit fertilizer groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112575799A true CN112575799A (en) | 2021-03-30 |
Family
ID=75145228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110093379.5A Pending CN112575799A (en) | 2021-01-25 | 2021-01-25 | Tool type support for replacing support in foundation pit fertilizer groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112575799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809122A (en) * | 2022-03-30 | 2022-07-29 | 中国建设基础设施有限公司 | An inner support device that can precisely apply prestress in foundation pit model test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050019379A (en) * | 2003-08-19 | 2005-03-03 | 이창남 | storey spacing support ssoldier pile soil retaining wall |
| CN205502025U (en) * | 2016-04-05 | 2016-08-24 | 东通岩土科技（杭州）有限公司 | Stagnant water stake is gone along with sb. to guard him to foundation ditch and shaped steel encloses connection structure between purlin |
| CN211973514U (en) * | 2020-03-30 | 2020-11-20 | 中国建筑第二工程局有限公司 | A revolvable foundation pit supporting device |
| CN112252380A (en) * | 2020-11-25 | 2021-01-22 | 上海乾瑞科技有限公司 | Novel automatic monitoring device and monitoring method for steel support axial force |
| CN214695658U (en) * | 2021-01-25 | 2021-11-12 | 北京中岩大地科技股份有限公司 | Tool type support for replacing support in foundation pit fertilizer groove |
-
2021
- 2021-01-25 CN CN202110093379.5A patent/CN112575799A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050019379A (en) * | 2003-08-19 | 2005-03-03 | 이창남 | storey spacing support ssoldier pile soil retaining wall |
| CN205502025U (en) * | 2016-04-05 | 2016-08-24 | 东通岩土科技（杭州）有限公司 | Stagnant water stake is gone along with sb. to guard him to foundation ditch and shaped steel encloses connection structure between purlin |
| CN211973514U (en) * | 2020-03-30 | 2020-11-20 | 中国建筑第二工程局有限公司 | A revolvable foundation pit supporting device |
| CN112252380A (en) * | 2020-11-25 | 2021-01-22 | 上海乾瑞科技有限公司 | Novel automatic monitoring device and monitoring method for steel support axial force |
| CN214695658U (en) * | 2021-01-25 | 2021-11-12 | 北京中岩大地科技股份有限公司 | Tool type support for replacing support in foundation pit fertilizer groove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809122A (en) * | 2022-03-30 | 2022-07-29 | 中国建设基础设施有限公司 | An inner support device that can precisely apply prestress in foundation pit model test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2167750B1 (en) | Steel plate structure and steel plate concrete wall | |
| BR112020002183A2 (en) | foundation for a structure | |
| CN214695658U (en) | Tool type support for replacing support in foundation pit fertilizer groove | |
| US11028551B2 (en) | Foundation for a tower of a wind-turbine | |
| CN108119164B (en) | Prefabricated assembled composite support structure | |
| CN107663903B (en) | Connecting structure of assembled concrete shear wall and connecting beam and prefabricating and assembling method | |
| CN112575799A (en) | Tool type support for replacing support in foundation pit fertilizer groove | |
| CN113605247B (en) | Flange type steel box arch springing consolidation structure and construction method | |
| CN110185486A (en) | A kind of permanent protrusion-dispelling air door wall of concrete filled steel tube and its construction method | |
| CN214363507U (en) | Anchor rod tension real-time monitoring and automatic compensation system and anchor rod supporting system | |
| CN220099964U (en) | Connecting device between transmission line iron tower and anchor rod foundation | |
| CN210421155U (en) | Precast concrete base of corrugated steel plate comprehensive pipe gallery | |
| CN107842377A (en) | Utilize the big stroke bellows damper of performance behind material peak | |
| CN208605220U (en) | A kind of permanent protrusion-dispelling air door wall of concrete filled steel tube | |
| CN111254815A (en) | Self-resetting prefabricated pier structure for monopile foundation and its assembling method | |
| CN111305233A (en) | Axial force compensation type prestressed fish belly type foundation pit steel support structure and construction method thereof | |
| CN104499493A (en) | Deformable prestressed anchor pier | |
| CN212801566U (en) | Node structure and supporting system of concrete filled steel tube support and crown beam | |
| CN213062022U (en) | Assembled braced system based on arched beam structure | |
| CN115898072A (en) | A column-type telecommunication tower prestressed reinforcement structure and reinforcement method | |
| CN114351697A (en) | Super-large-diameter prestressed concrete tubular pile for offshore wind power and construction method thereof | |
| CN204456143U (en) | Deformable prestressing force anchor pier | |
| CN112942364A (en) | Self-balancing large-span deep foundation pit prestressed beam system | |
| CN223061610U (en) | Foundation pit supporting structure formed by prefabricated foundation pit reinforced concrete hollow supporting members | |
| CN207376628U (en) | A kind of slip casting bolt for assembled pattern foundation pit supporting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |