CN104878786A - Inclined-straight alternating group piles-soil-structure interaction experiment model - Google Patents
Inclined-straight alternating group piles-soil-structure interaction experiment model Download PDFInfo
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- CN104878786A CN104878786A CN201510302248.8A CN201510302248A CN104878786A CN 104878786 A CN104878786 A CN 104878786A CN 201510302248 A CN201510302248 A CN 201510302248A CN 104878786 A CN104878786 A CN 104878786A
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Abstract
The invention discloses an inclined-straight alternating group piles-soil-structure interaction experiment model, belongs to the technical field of geotechnical similar simulation experiments with an aim to solve problems that the inclined-straight alternating group piles-soil-structure interaction experiment model is complex in manufacturing. The inclined-straight alternating group piles-soil-structure interaction experiment model is composed of a soil box, foundation soil, an inclined-straight alternating group pile foundation, a bearing platform and an upper portion structure; the soil box is of a hollow cuboid body provided with an upper opening and is formed by welding of steel plates; the foundation is divided into two layers, the upper layer is clay, and the lower layer is sandy soil; the inclined-straight alternating group pile foundation is formed by two vertical piles and two inclined piles, and pile bottoms are identical in elevation; the bearing platform is a cuboid body cast with concrete, and the vertical piles and the inclined piles are integrally connected through the bearing platform; the upper portion structure is composed of a single-column pier and a counter weight, the single-column pier is of a cylindrical body, two vertically-arrayed threaded rods are embedded in the upper end of the single-column pier, and the counter weight is formed by combination of weights different in weight. The inclined-straight alternating group piles-soil-structure interaction experiment model is simple in structure, convenient to machine and manufacture and high in engineering practicability.
Description
Technical field
The invention belongs to geotechnological similarity simulation experiment technical field, be specifically related to a kind of similarity simulation experiment model, particularly relate to oblique orthogonal for group's Pile-soil-structure Interaction experimental model.
Background technology
At present, oblique orthogonal is widely used in the Long Span Roof Structures public building bases such as highway bridge, port and pier, offshore drilling platform, high-filled embankment, high tower structure, super highrise building, pattern foundation pit supporting structure, basement process, large-scale electric power line pole tower and airport, stadiums, recreational and sports activities center, exhibition hall for a clump of piles.Although recent domestic has carried out some Pile-soil-structure Dynamic Interaction model investigations, and achieve more achievement in research, but these researchs are all carried out for vertical single pile or a vertical clump of piles, corresponding experimental model is vertical single pile experimental model or vertical clump of piles experimental model, yet there are no the documents and materials of oblique orthogonal for group's Pile-soil-structure Interaction experimental model both at home and abroad.
In order to study the force and deformation characteristic of oblique orthogonal for group's Pile-soil-structure Interaction system, in project of national nature science fund project (numbering: under subsidy 41372288), intend adopting similar simulation experimental method to carry out correlative study, but because oblique orthogonal makes complicated for group's Pile-soil-structure Interaction experimental model, so that still lack the similarity simulation experiment model matched at present, therefore, need a kind of effective tiltedly orthogonal of invention for group's Pile-soil-structure Interaction experimental model.
Summary of the invention
The object of this invention is to provide a kind of tiltedly orthogonal for group's Pile-soil-structure Interaction experimental model, this experimental model not only can reflect the interaction property of oblique orthogonal for group's pile-soil-structure system really, and structure is simple, cost of manufacture is cheap, practical, Technological Economy is feasible.
The technical solution used in the present invention is: tiltedly orthogonal is for group's Pile-soil-structure Interaction experimental model, and it is made up of for multi-column pier foundation, cushion cap and superstructure native case, foundation soil, tiltedly orthogonal; Described native case is the hollow cuboid that top is opened wide, and is formed by Plate Welding; Described foundation soil is divided into two-layer, and upper strata is clay, and lower floor is sand; Described oblique orthogonal is made up of two plumb piles and two raked piles for multi-column pier foundation, and at the bottom of stake, absolute altitude is identical; Described cushion cap is the cuboid of concreting, and plumb pile and raked pile connection are entirety by it; Described superstructure is made up of Single column pier and counterweight, and Single column pier is cylinder, and two vertically disposed threaded rods are implanted in upper end, and counterweight is combined by the counterweight of Different Weight.
Construction usage method of the present invention is: tiltedly orthogonal is for group's Pile-soil-structure Interaction experimental model, first, according to the prefabricated overall structure be made up of for two plumb piles in multi-column pier foundation and two raked piles, cushion cap and Single column pier oblique orthogonal of design size, and implant two vertically disposed threaded rods in the upper end of Single column pier.Then, native case is welded according to designing requirement with steel plate, and the sand filled out in native case in foundation soil, when at the bottom of the depth of fill reaches during absolute altitude, the prefabricated overall structure be made up of for two plumb piles in multi-column pier foundation and two raked piles, cushion cap and Single column pier oblique orthogonal is placed to the top of foundation soil by designing requirement, then continues back-up sand soil, when the depth of fill reaches the design elevation of sand, start to fill out clay, until the depth of fill reaches the height of designing requirement.After experimental model completes, the load of experimentally required superstructure, chooses the counterweight of the Different Weight required for counterweight, and is placed to by the counterweight chosen on the threaded rod of Single column pier upper end, add Upper gasket, fastening nut.Finally, experimental requirement, carries out loading experiment to oblique orthogonal for group's Pile-soil-structure Interaction experimental model, and records relevant experimental data.
Operating principle of the present invention is: tiltedly orthogonal is for group's Pile-soil-structure Interaction experimental model, it is the reduced scale experimental model be made according to the pre-determined likelihood ratio, the composition structure of this experimental model is all consistent with Practical Project with stressing conditions, therefore, can reflect that in Practical Project, oblique orthogonal is for the force and deformation characteristic of group's Pile-soil-structure Interaction system really.
The invention has the beneficial effects as follows: tiltedly orthogonal is simple, easy to make, cheap for group's Pile-soil-structure Interaction laboratory model construction, engineering practicability is strong, and can comprehensive and accurate simulation Practical Project situation, gained result of study truly can reflect the mechanical state for group's Pile-soil-structure Interaction system of oblique orthogonal in Practical Project, thus provides necessary Data support and construction to instruct for the theory analysis of Practical Project, engineering design and site operation.
Accompanying drawing explanation
Fig. 1 is that the oblique orthogonal of the present invention is for the overall generalized section of group's Pile-soil-structure Interaction experimental model.
Fig. 2 is that the oblique orthogonal of the present invention is for group's Pile-soil-structure Interaction experimental model cushion cap schematic diagram.
Fig. 3 is that the oblique orthogonal of the present invention is for group's Pile-soil-structure Interaction experimental model superstructure schematic diagram.
Marginal data: 1-soil case; 2-foundation soil; The oblique orthogonal of 3-is for multi-column pier foundation; 4-cushion cap; 5-superstructure; 6-clay; 7-sand; 8-plumb pile; 9-raked pile; 10-Single column pier; 11-threaded rod; 12-counterweight; 13-pad.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in FIG. 1 to 3, the oblique orthogonal of the present invention is for group's Pile-soil-structure Interaction experimental model, and it is made up of for multi-column pier foundation 3, cushion cap 4 and superstructure 5 native case 1, foundation soil 2, tiltedly orthogonal; The hollow cuboid that described native case 1 opens wide for top, is formed by Plate Welding; Described foundation soil 2 is divided into two-layer, and upper strata is clay 6, and lower floor is sand 7; Described oblique orthogonal is made up of two plumb piles 8 and two raked piles 9 for multi-column pier foundation 3, and at the bottom of stake, absolute altitude is identical; Described cushion cap 4 is the cuboid of concreting, and plumb pile 8 and raked pile 9 are overall by it; Described superstructure 5 is made up of Single column pier 10 and counterweight, and Single column pier 10 is cylinder, and two vertically disposed threaded rods 11 are implanted in upper end, and counterweight is combined by the counterweight 12 of Different Weight.
During use, first, according to the prefabricated overall structure be made up of for two plumb piles 8 in multi-column pier foundation 3 and two raked piles 9, cushion cap 4 and Single column pier 10 oblique orthogonal of design size, and two vertically disposed threaded rods 11 are implanted in the upper end of Single column pier 10.Then, native case 1 is welded according to designing requirement with steel plate, and the sand 7 filled out toward 1 li, native case in foundation soil 2, when at the bottom of the depth of fill reaches during absolute altitude, the prefabricated overall structure be made up of for two plumb piles 8 in multi-column pier foundation 3 and two raked piles 9, cushion cap 4 and Single column pier 10 oblique orthogonal is placed to the top of foundation soil 2 by designing requirement, then continue back-up sand soil 7, when the depth of fill reaches the design elevation of sand 7, start to fill out clay 6, until the depth of fill reaches the height of designing requirement.After experimental model completes, the load of experimentally required superstructure 5, chooses the counterweight 12 of the Different Weight required for counterweight, and is placed to by the counterweight 12 chosen on the threaded rod 11 of Single column pier 10 upper end, add Upper gasket 13, fastening nut.Finally, experimental requirement, carries out loading experiment to oblique orthogonal for group's Pile-soil-structure Interaction experimental model, and records relevant experimental data.
Claims (1)
1. oblique orthogonal is for group's Pile-soil-structure Interaction experimental model, it is characterized in that, it is made up of for multi-column pier foundation, cushion cap and superstructure native case, foundation soil, tiltedly orthogonal; Described native case is the hollow cuboid that top is opened wide, and is formed by Plate Welding; Described foundation soil is divided into two-layer, and upper strata is clay, and lower floor is sand; Described oblique orthogonal is made up of two plumb piles and two raked piles for multi-column pier foundation, and at the bottom of stake, absolute altitude is identical; Described cushion cap is the cuboid of concreting, and plumb pile and raked pile connection are entirety by it; Described superstructure is made up of Single column pier and counterweight, and Single column pier is cylinder, and two vertically disposed threaded rods are implanted in upper end, and counterweight is combined by the counterweight of Different Weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510302248.8A CN104878786B (en) | 2015-06-05 | 2015-06-05 | Tiltedly orthogonal is for group's Pile-soil-structure Interaction experimental model |
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| CN201510302248.8A CN104878786B (en) | 2015-06-05 | 2015-06-05 | Tiltedly orthogonal is for group's Pile-soil-structure Interaction experimental model |
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| CN104878786A true CN104878786A (en) | 2015-09-02 |
| CN104878786B CN104878786B (en) | 2016-08-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756108A (en) * | 2016-05-10 | 2016-07-13 | 扬州大学 | Model box for testing vibration isolation performance of piled box foundations |
| CN108335618A (en) * | 2018-04-26 | 2018-07-27 | 山东科技大学 | Pile Foundation of Wharf teaching mode containing taper pile |
| CN108801666A (en) * | 2018-07-05 | 2018-11-13 | 福州大学 | A kind of device and its implementation of enhancing abutment-soil body interaction |
| CN115508035A (en) * | 2022-11-22 | 2022-12-23 | 唐山学院 | Anti-seismic civil test equipment and arrangement method |
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| SU1651134A1 (en) * | 1989-01-30 | 1991-05-23 | Всесоюзный научно-исследовательский институт транспортного строительства | Testing rig for pile drivers |
| CN201144425Y (en) * | 2007-12-27 | 2008-11-05 | 国网北京电力建设研究院 | Mini pile tower foundation |
| CN103061360A (en) * | 2012-12-05 | 2013-04-24 | 中国五冶集团有限公司 | Stress application system for large-tonnage static load tests |
| CN104005431A (en) * | 2014-06-16 | 2014-08-27 | 山东科技大学 | Alternately oblique and straight pile group-pile cap-superstructure similarity model manufacturing formwork |
| CN204753656U (en) * | 2015-06-05 | 2015-11-11 | 山东科技大学 | A clump of piles - soil - structure interact experimental model directly replaces to one side |
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2015
- 2015-06-05 CN CN201510302248.8A patent/CN104878786B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1651134A1 (en) * | 1989-01-30 | 1991-05-23 | Всесоюзный научно-исследовательский институт транспортного строительства | Testing rig for pile drivers |
| CN201144425Y (en) * | 2007-12-27 | 2008-11-05 | 国网北京电力建设研究院 | Mini pile tower foundation |
| CN103061360A (en) * | 2012-12-05 | 2013-04-24 | 中国五冶集团有限公司 | Stress application system for large-tonnage static load tests |
| CN104005431A (en) * | 2014-06-16 | 2014-08-27 | 山东科技大学 | Alternately oblique and straight pile group-pile cap-superstructure similarity model manufacturing formwork |
| CN204753656U (en) * | 2015-06-05 | 2015-11-11 | 山东科技大学 | A clump of piles - soil - structure interact experimental model directly replaces to one side |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756108A (en) * | 2016-05-10 | 2016-07-13 | 扬州大学 | Model box for testing vibration isolation performance of piled box foundations |
| CN108335618A (en) * | 2018-04-26 | 2018-07-27 | 山东科技大学 | Pile Foundation of Wharf teaching mode containing taper pile |
| CN108801666A (en) * | 2018-07-05 | 2018-11-13 | 福州大学 | A kind of device and its implementation of enhancing abutment-soil body interaction |
| CN108801666B (en) * | 2018-07-05 | 2019-11-12 | 福州大学 | A kind of device and its implementation method of enhancing abutment-soil body interaction |
| CN115508035A (en) * | 2022-11-22 | 2022-12-23 | 唐山学院 | Anti-seismic civil test equipment and arrangement method |
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| CN104878786B (en) | 2016-08-31 |
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