CN202969391U - Reinforced concrete internal support with prestressed loader for retaining and protection of foundation excavation - Google Patents
Reinforced concrete internal support with prestressed loader for retaining and protection of foundation excavation Download PDFInfo
- Publication number
- CN202969391U CN202969391U CN 201220686177 CN201220686177U CN202969391U CN 202969391 U CN202969391 U CN 202969391U CN 201220686177 CN201220686177 CN 201220686177 CN 201220686177 U CN201220686177 U CN 201220686177U CN 202969391 U CN202969391 U CN 202969391U
- Authority
- CN
- China
- Prior art keywords
- reinforced concrete
- prestressing force
- loader
- prestressed
- force loader
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model provides a reinforced concrete internal support with prestressed loaders for retaining and protection of foundation excavation. The reinforced concrete internal support with the prestressed loaders for the retaining and the protection of the foundation excavation comprises reinforced concrete support beams and reinforced concrete surrounding purlins, wherein the reinforced concrete support beams and the reinforced concrete surrounding purlins are arranged inside the foundation excavation, a plurality of prestressed loaders are arranged among the reinforced concrete support beams and the reinforced concrete surrounding perlins, a prestressed loading center is coincide with an axis of each reinforced concrete support beam, an embedded bolt connecting device which is used for being connected with the prestressed loaders is arranged on the reinforced concrete support beams and the reinforced concrete surrounding purlins, one end of each prestressed loader is connected with each reinforced concrete support beam and the other end of each prestressed loader is connected with each reinforced concrete surrounding purlin. The reinforced concrete internal support with the prestressed loaders for the retaining and the protection of the foundation excavation has the advantages of being large in support stiffness of the internal support, and capable of controlling deformation of the foundation excavation, adjusting prestressing force of the reinforced concrete support at any time when soil pressure of the side wall of the foundation excavation is changed, thereby counterbalancing the soil pressure of the side wall of the foundation excavation.
Description
Technical field
The utility model relates to technical field of civil engineering, and particularly the pattern foundation pit supporting structure inner supporting structure, further relate to a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader.
Background technology
In foundation pit supporting construction, often adopt reinforced concrete support in the support commonly used of inner support supporting and protection structure, reinforced concrete support has construction and simply, is not subjected to the advantages such as foundation ditch shape restriction.But existing reinforced concrete support is the monobloc cast structure, soil pressure occurs outside the complete rear foundation ditch of constructing and changes, and can't apply prestressing force to reinforced concrete support, causes foundation pit deformation large, wayward.
The utility model content
Technical problem to be solved in the utility model is, overcomes the defective that in existing pattern foundation pit supporting structure, reinforced concrete support exists, and a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader is provided.
In order to address the above problem, the technical solution of the utility model is such:
a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader, comprise the reinforced concrete brace that is arranged on foundation ditch inside and reinforced concrete fortifield village purlin, it is characterized in that, be provided with several prestressing force loaders between reinforced concrete brace and reinforced concrete fortifield village purlin, prestressing force loads the axis coinciding of center and reinforced concrete brace, be provided with for the pre-embedded bolt linkage that connects the prestressing force loader on reinforced concrete brace and reinforced concrete fortifield village purlin, prestressing force loader one end connecting reinforcement concrete support beam, other end connecting reinforcement coagulation fortifield village purlin.
Reinforced concrete fortifield village purlin is that purlin is enclosed in the steel reinforced concrete combination.
The pre-embedded bolt linkage is a pre-embedded bolt bar, and stretch out for connecting the prestressing force loader end.
The pre-embedded bolt linkage is a nut, and the prestressing force loader is connected on nut by a screw rod.
The reinforced concrete brace below is provided with a plurality of columns, is provided with pull bar between a plurality of columns.
Described prestressing force loader is jack.
Described jack is the self-locking jack, and its axial region is provided with self-locking nut.
The end of many reinforced concrete braces is connected with the transverse reinforcement concrete beam, is provided with the prestressing force loader between transverse reinforcement concrete beam and reinforced concrete fortifield village purlin.
Beneficial effect, a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader described in the utility model, support stiffness is large, span is large, foundation pit deformation can be controlled, and can regulate at any time the prestressing force of reinforced concrete support when lateral earth pressure outside foundation ditch changes.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a kind of structural representation of using reinforced concrete inner support embodiment 1 with the pattern foundation pit supporting structure of prestressing force loader described in the utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is a kind of structural representation of using reinforced concrete inner support embodiment 2 with the pattern foundation pit supporting structure of prestressing force loader described in the utility model.
Fig. 4 is the partial enlarged drawing of Fig. 3.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
For this reason, to supportting 1 end and the junction of enclosing purlin 5, be provided with the end face of disconnection, be provided with prestressing force loader 2 at every on to the end face that supports 1 disconnection, prestressing force loader 2 one ends withstand on the end face that supports 1 disconnection, and the other end withstands on and encloses on purlin 5.For the ease of loader 2 top pressing, be provided with steel plate 3 to supportting on 1 end face, steel plate connects inside to supportting 1 by built-in fitting.Enclose purlin 5 and enclose purlin for the steel reinforced concrete combination.
Described loader 2 is the self-locking jack, and this jack two ends withstand on supportting on 1 end face, and after pressurization, this this self-locking jack has a self-locking nut, length can be pressed in oil cylinder locking top, and the dismounting oil pipe.When pressure is pushed up in the needs continuation, can connect oil pipe and continue the top pressure.
Described loader 2 is the self-locking jack, and this jack two ends withstand on supportting on 1 end face, and after pressurization, this self-locking jack has a self-locking nut, length can be pressed in oil cylinder locking top, and the dismounting oil pipe.When pressure is pushed up in the needs continuation, can connect oil pipe and continue the top pressure.
Described loader 2 is common hydraulic top-pressure oil cylinder, when adopting this oil cylinder pressurization, in the middle of top board 4, cushion block is set, and will separate between top board 4.When regulating prestressing force, after the loader pressurization, increase pad thickness.
A plurality of end faces can be set or be arranged on the support centre position supportting 1 centre in above-described embodiment 1 and 2, thereby realizing the many places pressurization.Form multiple spot and load prestressed reinforced concrete inner support.
In above-described embodiment 1 and 2, loader can also be arranged in angle brace.Play the prestressed effect of regulating.
A kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader described in the utility model, support stiffness is large, span is large, foundation pit deformation can be controlled, when changing, can regulate at any time lateral earth pressure outside foundation ditch the prestressing force of reinforced concrete support, to offset the soil pressure in the foundation ditch outside.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not subjected to the restriction of above-mentioned example; that describes in above-mentioned example and manual just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader, comprise the reinforced concrete brace that is arranged on foundation ditch inside and reinforced concrete fortifield village purlin, it is characterized in that, be provided with several prestressing force loaders between reinforced concrete brace and reinforced concrete fortifield village purlin, prestressing force loads the axis coinciding of center and reinforced concrete brace, be provided with for the pre-embedded bolt linkage that connects the prestressing force loader on reinforced concrete brace and reinforced concrete fortifield village purlin, prestressing force loader one end connecting reinforcement concrete support beam, other end connecting reinforcement coagulation fortifield village purlin.
2. a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader according to claim 1, is characterized in that, reinforced concrete fortifield village purlin is that purlin is enclosed in the steel reinforced concrete combination.
3. a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader according to claim 1, is characterized in that, the pre-embedded bolt linkage is a pre-embedded bolt bar, and stretch out for connecting the prestressing force loader end.
4. a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader according to claim 1, is characterized in that, the pre-embedded bolt linkage is a nut, and the prestressing force loader is connected on nut by a screw rod.
5. a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader according to claim 1, is characterized in that, is provided with a plurality of columns below reinforced concrete brace, is provided with pull bar between a plurality of columns.
6. a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader according to claim 1, is characterized in that, described prestressing force loader is jack.
7. a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader according to claim 6, is characterized in that, described jack is the self-locking jack, and its axial region is provided with self-locking nut.
8. a kind of pattern foundation pit supporting structure reinforced concrete inner support with the prestressing force loader according to claim 1, it is characterized in that, the end of many reinforced concrete braces is connected with the transverse reinforcement concrete beam, is provided with the prestressing force loader between transverse reinforcement concrete beam and reinforced concrete fortifield village purlin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220686177 CN202969391U (en) | 2012-12-12 | 2012-12-12 | Reinforced concrete internal support with prestressed loader for retaining and protection of foundation excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220686177 CN202969391U (en) | 2012-12-12 | 2012-12-12 | Reinforced concrete internal support with prestressed loader for retaining and protection of foundation excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202969391U true CN202969391U (en) | 2013-06-05 |
Family
ID=48510485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220686177 Expired - Lifetime CN202969391U (en) | 2012-12-12 | 2012-12-12 | Reinforced concrete internal support with prestressed loader for retaining and protection of foundation excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202969391U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979101A (en) * | 2012-12-12 | 2013-03-20 | 上海强劲地基工程股份有限公司 | Reinforced concrete inner support with pre-stressed loaders for supporting foundation pit |
| CN103437366A (en) * | 2013-08-19 | 2013-12-11 | 浙江博雷重型机床制造有限公司 | Prestress loading device connecting part |
| CN103452119B (en) * | 2013-08-19 | 2016-05-11 | 浙江博雷重型机床制造有限公司 | The prestressing force charger of pattern foundation pit supporting structure inner support system |
| CN109853577A (en) * | 2018-12-25 | 2019-06-07 | 青岛理工大学 | Method for applying prestress on steel support of deep foundation pit in online control mode |
| WO2019148631A1 (en) * | 2018-02-01 | 2019-08-08 | 上海勘察设计研究院(集团)有限公司 | Foundation pit support system capable of actively controlling displacement thereof and design method thereof |
-
2012
- 2012-12-12 CN CN 201220686177 patent/CN202969391U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979101A (en) * | 2012-12-12 | 2013-03-20 | 上海强劲地基工程股份有限公司 | Reinforced concrete inner support with pre-stressed loaders for supporting foundation pit |
| CN102979101B (en) * | 2012-12-12 | 2015-08-19 | 上海强劲地基工程股份有限公司 | A kind of pattern foundation pit supporting structure reinforced concrete inner support with prestressing force loader |
| CN103437366A (en) * | 2013-08-19 | 2013-12-11 | 浙江博雷重型机床制造有限公司 | Prestress loading device connecting part |
| CN103452119B (en) * | 2013-08-19 | 2016-05-11 | 浙江博雷重型机床制造有限公司 | The prestressing force charger of pattern foundation pit supporting structure inner support system |
| CN103437366B (en) * | 2013-08-19 | 2016-06-08 | 浙江博雷重型机床制造有限公司 | The connection member of prestressing force charger |
| WO2019148631A1 (en) * | 2018-02-01 | 2019-08-08 | 上海勘察设计研究院(集团)有限公司 | Foundation pit support system capable of actively controlling displacement thereof and design method thereof |
| CN109853577A (en) * | 2018-12-25 | 2019-06-07 | 青岛理工大学 | Method for applying prestress on steel support of deep foundation pit in online control mode |
| CN109853577B (en) * | 2018-12-25 | 2019-10-25 | 青岛理工大学 | Method for applying prestress on steel support of deep foundation pit in online control mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102979101B (en) | A kind of pattern foundation pit supporting structure reinforced concrete inner support with prestressing force loader | |
| CN202969391U (en) | Reinforced concrete internal support with prestressed loader for retaining and protection of foundation excavation | |
| CN101255697B (en) | Deep building pit trussed-beam inner support integral application pre-stress method | |
| CN101429819B (en) | Wall and column underpinning method | |
| CN102839675A (en) | Long-span pre-stress fish belly sill for foundation pit support and mounting method thereof | |
| CN105972313B (en) | One kind is across base pit engineering conduit wiring suspension method and overhung construction | |
| CN103015434A (en) | High-stiffness monolithic prestress assembly type foundation pit bracing inner-supporting system | |
| CN102828568A (en) | Concrete shear wall with perpends | |
| CN101929338A (en) | Hydraulic fan-shaped support system for controlling steel frame deformation in tunnel construction | |
| CN103132513A (en) | Repairing method of damaged foundation pile of high-pile wharf | |
| CN102518050A (en) | Operation platform for replacing support saddle of bridge | |
| CN103821359A (en) | Large-cross-section concrete beam layered casting construction method | |
| CN102605785A (en) | Prestressing pile sealing device for statically pressed piles of anchor bars | |
| CN203383221U (en) | Foundation pit support structure formed by armoured concrete and steel structure | |
| CN106284367A (en) | A kind of foundation pit supporting construction using scalable prestress steel to support | |
| CN201128916Y (en) | Active pile foundation underpinning structure | |
| CN104846750A (en) | Underpinning method for prestress friction type massive pillar girders with seams | |
| CN108547226B (en) | Tower column support for determining cable-free zone of inclined tower of cable-stayed bridge | |
| KR101072958B1 (en) | Foundation structure using the micropile and truss, and construction method thereof in a surrounding structure and the places that it is adjacent to | |
| CN203238639U (en) | Lattice column with adjustable height | |
| CN101446089B (en) | Thermal power plant boiler pedestal and foundation connection structure and method thereof | |
| DE102010031511A1 (en) | Stump stump joint of highly loaded precast columns | |
| CN210597037U (en) | Pre-compaction structure of super high beam support | |
| CN204116201U (en) | A kind of outdoor beam body test counter force system | |
| CN205012346U (en) | Adopt underground structure of scalable prestressing force steel shotcrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |