CN202522465U - Multielement pile foundation simulation test box - Google Patents
Multielement pile foundation simulation test box Download PDFInfo
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- CN202522465U CN202522465U CN2012200812532U CN201220081253U CN202522465U CN 202522465 U CN202522465 U CN 202522465U CN 2012200812532 U CN2012200812532 U CN 2012200812532U CN 201220081253 U CN201220081253 U CN 201220081253U CN 202522465 U CN202522465 U CN 202522465U
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Abstract
The utility model provides a multielement pile foundation simulation test box, relating to the technical field of foundation structure test. The multielement pile foundation simulation test box comprises a box body, test piles in the box body and testing soil, wherein a clapboard is arranged at the bottom of the box body, the clapboard is provided with a plurality of pile holes, a test spring is arranged in each pile hole, the test piles are inserted into the pile holes, a sensor is arranged on the surface of each test pile, and a flexible loader is arranged above the testing soil. The multielement pile foundation simulation test box solves the technical problems that the multielement composite foundation strength, deformation and other performances in the prior art cannot be subjected to comprehensive test. The multielement pile foundation simulation test box disclosed by the utility model has the beneficial effects that: one box body can simultaneously test a plurality of test piles, different foundations can be simulated according to the test requirements, conditions of the multielement composite foundation field can be restored, a mathematical model of a multielement composite foundation bearing process can be established, and an optimal scheme is found for design.
Description
Technical field
The utility model relates to foundation structure experimental technique field, especially relates to a kind of simulation laboratory test device of polynary pile foundation.
Background technology
Closely during the last ten years, composite foundation technology has obtained very great development.In composite foundation, the load-bearing capacity of three types stake (discrete material pile, flexible pile and rigid pile) is different with deformation characteristic, and each method for processing foundation all has its applicable scope and relative merits.Existing composite foundation method for designing main thought is comprehensive pile soil common action, uses for reference ripe pile foundation and subsoil Design Mode, and existing design is main according to indoor intensity of test block.The ultimate principle of simulation test is: buildings and soil-cement pile composite foundation prototype are dwindled in proportion carry out simulated experiment, the theoretical foundation of simulated experiment is the principle of similitude.Chinese patent Granted publication CN101532930A, on September 16 2009 Granted publication date, name is called the utility model patent of " pile model power-cycle test system ", discloses a kind of indoor model stake power-cycle test system.This pilot system comprises model groove, pressure frame, charger, signal generating system and data collector.The model groove adopts the steel tank of big specification, and its bottom is a waterproof construction, and is provided with filling pipe at bottom centre position.Notch evenly is furnished with a plurality of lifting of model groove and fixing circular bolt holes of reaction frame of being used for.Charger is connected fixing with the model groove through pressure frame, to the pile body load application.Data collector links to each other with stressed pile body through signal generating system, records test figure.This pilot system can reduce ubiquitous in the model test " model casing effect " to greatest extent; And simultaneously integrated charger and measuring equipment with high precision and long-time stability can accurately reflect the variation of respectively surveying parameter in the model test process really.But this pilot system can not be to polynary composite foundation king-pile, native load transfer law, stake one a native cushion cap one bed course acting in conjunction mechanism; The stake type and the influence of mode that lay out pile to polynary composite foundation bearer properties and sedimentation; The calculating of analysis of polynary composite foundation Degree of Safety and settling amount, differential settlement; Dynamic response characteristics such as polynary composite foundation king-pile, native acting in conjunction proterties are done the comprehensive test test under the dynamic load function; Thereby can not set up polynary composite foundation optimal design mathematics model, realize coordination, economy and the technological organic unity of polynary composite foundation intensity and distortion.
Summary of the invention
Can not carry out the compbined test test in order to solve prior art to performances such as polynary composite foundation intensity and distortion; The utility model provides a kind of polynary pile foundation simulation test case; Reduce polynary composite foundation field condition; Set up polynary composite foundation load bearing process mathematical model, rationally accomplish the polynary composite foundation test of certain controlled condition, for design provides optimal case.
The technical scheme of the utility model is: a kind of polynary pile foundation simulation test case; It comprises the test pile in casing, the casing and tests with soil that the bottom of casing is provided with dividing plate, and dividing plate is provided with some holes; Stake is provided with test spring in the hole; Test pile inserts the stake hole, and the test pile surface is provided with sensor, and test is provided with flexible loader with the top of soil.Test spring simulation ground, flexible loader with the soil pressurization, read the test data of test pile to test through sensor.A casing can be tested a plurality of test piles simultaneously; Pressing testing experiment needs to simulate different grounds; Reduce the on-the-spot condition of polynary composite foundation, set up polynary composite foundation load bearing process mathematical model, rationally accomplish the polynary composite foundation test of certain controlled condition; Provide polynary composite foundation practical design method under the identical weak soil characteristic with test condition, find the optimal case that satisfies bearing capacity and the polynary stake of settlement request type and the native modular ratio of stake.
As preferably, flexible loader is a cystic structures, and the top of flexible loader is provided with opening, and opening stretches out the outside surface of casing.To flexible loader inflation, gas is full of the capsule of flexible loader from opening.Gassiness flexible loader is carried in test with above the soil as test pressure, and applied pressure is even, the on-load pressure scalable.
As preferably, the sidewall of casing is provided with drainage tube, and an end of drainage tube is communicated with the inner chamber of casing, and the other end of drainage tube stretches out the wall box outside surface.Drainage tube will be tested with water unnecessary in the soil and derive the simulation test case, make test with soil and actual more approaching with native condition, warranty test data reliability.
As preferably, flexible loader and test are with being provided with sand bedding course between the soil; Sand bedding course is identical with the cushion layer structure of buildings, and test situation is more near on-the-spot bar condition.
As preferably, the bottom of test pile is provided with packing ring, and the external diameter of packing ring is complementary with the aperture in stake hole; Use packing ring to prevent the stake of test spring destructive test.
As preferably, the mouth of pipe of drainage tube and wall box junction is provided with screen pack; Stop test to be run off with water with soil.
Compared with prior art; The beneficial effect of the utility model is: casing can test a plurality of test piles simultaneously, presses the testing experiment needs and can simulate different grounds, reduces the condition at polynary composite foundation scene; Set up polynary composite foundation load bearing process mathematical model, for optimal case is found in design.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the utility model.
Among the figure: the flexible loader of 1-; The 2-drainage tube; The 3-casing; The 4-test spring; The 5-test pile; The 6-sensor; The 7-test is with soil; The 8-sand bedding course; The 11-opening; The 21-screen pack; The 31-dividing plate; 32-stake hole; The 51-packing ring.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment 1:
As shown in Figure 1, a kind of polynary pile foundation simulation test case, it comprises the test pile 5 in casing 3, the casing 3 and tests with soil 7.Casing 3 is airtight container, and the top of casing 3 is provided with case lid.Case lid is connected with casing 3 through screw.The bottom of casing 3 is provided with dividing plate 31, and dividing plate 31 is provided with some holes 32.Present embodiment is selected three stake holes 32 for use.The aperture in stake hole 32 and the equal diameters of test pile 5.Stake is provided with test spring 4 in the hole 32.The external diameter of test spring 4 equates with the aperture in stake hole 32.The pressure that bears of the load simulation ground of test spring 4.The bottom of test pile 5 is provided with packing ring 51.The external diameter of packing ring 51 equates with the aperture in stake hole 32.Test pile 5 inserts stake hole 32.Test pile 5 is pressed in above the test spring 4 through packing ring 51.Test pile 5 surfaces are provided with sensor 6.Sensor 6 is through lead and the casing 3 outer reception instruments (not shown) that is connected.Test is full of in the casing 3 of dividing plate 31 tops with soil 7, and test pile 5 does not insert stake hole 32 parts and is embedded in test with in the soil 7.Test is provided with flexible loader 1 with the top of soil 7.Flexible loader 1 is a cystic structures.The top of flexible loader 1 is provided with opening 11, and opening 11 stretches out the outside surface of casing 3.The case lid of casing 3 is provided with through hole, and opening 11 passes through hole and stretches out casing 3.Opening 11 is connected with the air pump (not shown).Flexible loader 1 and test are with being provided with sand bedding course 8 between the soil 7.The cushion layer structure of sand bedding course 8 simulant building things.Sand bedding course 8 cover the test with soil 7 above, flexible loader 1 be pressed in sand bedding course 8 above.The sidewall of casing 3 is provided with drainage tube 2.One end of drainage tube 2 is communicated with the inner chamber of casing 3, and the other end of drainage tube 2 stretches out casing 3 sidewall outside surfaces.The mouth of pipe of drainage tube 2 and casing 3 sidewall junctions is provided with screen pack 21.
Claims (6)
1. polynary pile foundation simulation test case, it comprises that test pile (5) and test in casing (3), the casing (3) with native (7), is characterized in that; The bottom of said casing (3) is provided with dividing plate (31); Dividing plate (31) is provided with some holes (32), is provided with test spring (4) in the stake hole (32), and said test pile (5) inserts stake hole (32); Test pile (5) surface is provided with sensor (6), and said test is provided with flexible loader (1) with the top of soil (7).
2. a kind of polynary pile foundation simulation test case according to claim 1 is characterized in that: said flexible loader (1) is a cystic structures, and the top of flexible loader (1) is provided with opening (11), and opening (11) stretches out the outside surface of casing (3).
3. a kind of polynary pile foundation simulation test case according to claim 1; It is characterized in that: the sidewall of said casing (3) is provided with drainage tube (2); One end of drainage tube (2) is communicated with the inner chamber of casing (3), and the other end of drainage tube (2) stretches out casing (3) sidewall outside surface.
4. a kind of polynary pile foundation simulation test case according to claim 1 and 2 is characterized in that: said flexible loader (1) and test are with being provided with sand bedding course (8) between the soil (7).
5. a kind of polynary pile foundation simulation test case according to claim 1, it is characterized in that: the bottom of said test pile (5) is provided with packing ring (51), and the aperture in the external diameter of packing ring (51) and said stake hole (32) is complementary.
6. a kind of polynary pile foundation simulation test case according to claim 3 is characterized in that: the mouth of pipe of said drainage tube (2) and casing (3) sidewall junction is provided with screen pack (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200812532U CN202522465U (en) | 2012-03-07 | 2012-03-07 | Multielement pile foundation simulation test box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200812532U CN202522465U (en) | 2012-03-07 | 2012-03-07 | Multielement pile foundation simulation test box |
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| CN202522465U true CN202522465U (en) | 2012-11-07 |
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| CN2012200812532U Expired - Fee Related CN202522465U (en) | 2012-03-07 | 2012-03-07 | Multielement pile foundation simulation test box |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088847A (en) * | 2012-11-28 | 2013-05-08 | 中国矿业大学 | Device and method for manufacturing foundation reinforcement centrifugal model test sand pile |
| CN103898929A (en) * | 2014-04-10 | 2014-07-02 | 山东电力工程咨询院有限公司 | Horizontal bearing characteristics test model for prestressed concrete pipe piles and data testing method |
| CN104018527A (en) * | 2014-06-16 | 2014-09-03 | 山东科技大学 | Analog simulation experiment platform of alternately-arranged inclined and vertical cantilever piles for foundation pit support |
| CN104153404A (en) * | 2014-08-28 | 2014-11-19 | 东南大学 | Testing device and testing method of pile composite foundation combined with broken stone hardcore foundation |
| CN104314109A (en) * | 2014-10-30 | 2015-01-28 | 神华集团有限责任公司 | Experiment device of simulation pile box |
| CN104631519A (en) * | 2015-01-13 | 2015-05-20 | 河海大学 | Pile foundation bearing characteristic model test device and method under complicated load effect |
| CN104790441A (en) * | 2015-04-22 | 2015-07-22 | 杭州科技职业技术学院 | Effective pile length researching simulation test box for variable parameter super-long pile |
| CN104846853A (en) * | 2015-04-22 | 2015-08-19 | 杭州科技职业技术学院 | Multi-pile-foundation simulation testing box |
| CN106245691A (en) * | 2016-09-28 | 2016-12-21 | 中国科学院武汉岩土力学研究所 | Calcareous sand sound load Multifunctional pile base model test apparatus |
| CN106480910A (en) * | 2016-12-09 | 2017-03-08 | 广州市建筑科学研究院有限公司 | The device and method that a kind of simulation is acted on test pile end different bearer |
| CN106498991A (en) * | 2016-12-09 | 2017-03-15 | 广州市建筑科学研究院有限公司 | The pre-embedded device and method of stake in a kind of drilling follow pile tube model test |
| CN108152135A (en) * | 2017-12-13 | 2018-06-12 | 太原理工大学 | Cement earth pile device for measuring properties and measuring method |
| CN109469124A (en) * | 2019-01-11 | 2019-03-15 | 深圳宏业基岩土科技股份有限公司 | The layer-stepping pile foundation test device and test method vertically loaded using double air pressure films |
| CN109706908A (en) * | 2019-01-28 | 2019-05-03 | 重庆大学 | A kind of soil around pile Particle Breakage measuring device and its measurement method |
-
2012
- 2012-03-07 CN CN2012200812532U patent/CN202522465U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088847A (en) * | 2012-11-28 | 2013-05-08 | 中国矿业大学 | Device and method for manufacturing foundation reinforcement centrifugal model test sand pile |
| CN103088847B (en) * | 2012-11-28 | 2015-01-21 | 中国矿业大学 | Device and method for manufacturing foundation reinforcement centrifugal model test sand pile |
| CN103898929A (en) * | 2014-04-10 | 2014-07-02 | 山东电力工程咨询院有限公司 | Horizontal bearing characteristics test model for prestressed concrete pipe piles and data testing method |
| CN103898929B (en) * | 2014-04-10 | 2016-05-18 | 山东电力工程咨询院有限公司 | Prestressed concrete pipe pile horizontal bearing attribute testing model and data test method |
| CN104018527A (en) * | 2014-06-16 | 2014-09-03 | 山东科技大学 | Analog simulation experiment platform of alternately-arranged inclined and vertical cantilever piles for foundation pit support |
| CN104153404A (en) * | 2014-08-28 | 2014-11-19 | 东南大学 | Testing device and testing method of pile composite foundation combined with broken stone hardcore foundation |
| CN104314109A (en) * | 2014-10-30 | 2015-01-28 | 神华集团有限责任公司 | Experiment device of simulation pile box |
| CN104631519A (en) * | 2015-01-13 | 2015-05-20 | 河海大学 | Pile foundation bearing characteristic model test device and method under complicated load effect |
| CN104846853A (en) * | 2015-04-22 | 2015-08-19 | 杭州科技职业技术学院 | Multi-pile-foundation simulation testing box |
| CN104790441A (en) * | 2015-04-22 | 2015-07-22 | 杭州科技职业技术学院 | Effective pile length researching simulation test box for variable parameter super-long pile |
| CN106245691A (en) * | 2016-09-28 | 2016-12-21 | 中国科学院武汉岩土力学研究所 | Calcareous sand sound load Multifunctional pile base model test apparatus |
| CN106245691B (en) * | 2016-09-28 | 2018-04-20 | 中国科学院武汉岩土力学研究所 | Calcareous sand sound load Multifunctional pile base model test apparatus |
| CN106480910A (en) * | 2016-12-09 | 2017-03-08 | 广州市建筑科学研究院有限公司 | The device and method that a kind of simulation is acted on test pile end different bearer |
| CN106498991A (en) * | 2016-12-09 | 2017-03-15 | 广州市建筑科学研究院有限公司 | The pre-embedded device and method of stake in a kind of drilling follow pile tube model test |
| CN106480910B (en) * | 2016-12-09 | 2019-04-30 | 广州市建筑科学研究院有限公司 | A kind of device and method of simulation and the effect of test pile end different bearer |
| CN108152135A (en) * | 2017-12-13 | 2018-06-12 | 太原理工大学 | Cement earth pile device for measuring properties and measuring method |
| CN109469124A (en) * | 2019-01-11 | 2019-03-15 | 深圳宏业基岩土科技股份有限公司 | The layer-stepping pile foundation test device and test method vertically loaded using double air pressure films |
| CN109469124B (en) * | 2019-01-11 | 2023-12-12 | 深圳宏业基岩土科技股份有限公司 | Layered pile foundation test device and test method adopting double air pressure films for vertical loading |
| CN109706908A (en) * | 2019-01-28 | 2019-05-03 | 重庆大学 | A kind of soil around pile Particle Breakage measuring device and its measurement method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20150307 |
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| EXPY | Termination of patent right or utility model |