CN101514977A - Three-dimensionally loaded guide frame device for underground project model test - Google Patents
Three-dimensionally loaded guide frame device for underground project model test Download PDFInfo
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- CN101514977A CN101514977A CNA2009100146360A CN200910014636A CN101514977A CN 101514977 A CN101514977 A CN 101514977A CN A2009100146360 A CNA2009100146360 A CN A2009100146360A CN 200910014636 A CN200910014636 A CN 200910014636A CN 101514977 A CN101514977 A CN 101514977A
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Abstract
The invention relates to a three-dimensionally loaded guide frame device for an underground project model test, comprising a guide frame which is arranged outside the test model and supported on a bottom plate of a model reaction frame by four high-strengthened screw rods. The loaded plate part is embedded in the guide frame. Contact face of the loaded plate and the test model, and the side wall where frame posts of the guide frame are mutually contacted with the loaded plate are respectively adhered with a layer of friction-reducing material which can reduce friction between the loaded plate and the test model, and the loaded plate and the guide frame. Through the guide frame device, interference caused by compression of the model body owing to three-dimensional loading among adjacent loaded plates is eliminated, and independent and three-dimensional loading for the test model in such three pairs of directions as front and back directions, left and right directions, and upper and lower directions are effectively realized. The guide frame device can be widely applied to underground project model tests in hydroelectric power, traffic, energy, resources, national defense and other fields, and can effectively conduct and optimize design and construction of underground projects.
Description
Technical field
It is guide locating device provided to the present invention relates to a kind of three-dimensional loading, especially a kind of three-dimensionally loaded guide frame device for underground project model test that uses in water power, traffic, the energy, resource and defence engineering field.
Background technology
19th century were centuries of bridge, and 20th century were centuries of skyscraper, and 21 century is the century that human development utilizes the underground space, along with the fast development of Chinese national economy, manyly constantly moved towards the deep building and be about to newly-built underground works.Be mining mineral resource underground passage, or the underground chamber of the subterranean tunnel of transport development and hydroelectric development etc. all develops to the deep direction that exceedes km or thousands of meters gradually.Increase along with depth of burial, cavern, deep rock mass is under the high-ground stress condition, a series of new feature scientific phenomenas such as subregion breaks, large deformation, impact failure have appearred in the structure of surrounding rock of chamber, mechanical characteristic and engineering response, these feature scientific phenomenas are compared significantly different with the response of shallow embedding surrounding rock of chamber engineering, thereby deep underground works problem caused the very big concern of rock mechanics and engineering domain expert scholar in the world, becomes the hot issue of this area research in recent years.At the mechanical deformation characteristic of deep underground works rock mass complexity, on the other hand, to study by model test method more by theoretical research on the one hand.But carry out the deep underground project model test, just must study and solve the three-dimensional loading problem of model test, at present relevant model test systematic research present situation is as follows:
(1) " Wuhan hydraulic power college journal " the 5th phase in 1992 has been introduced a kind of plane stress test unit and loading system, its test unit is that headroom is the afterburning frame of 150cm * 140cm enclosed planar rigidity, loading system is by pressure cell, air lift pump, pipeline, tensimeter are formed, during test by the load or unload step by step of air pump controlled pressure.This system is that the plane loads, and the three-dimensional that can't carry out the underground works model loads.
(2) " water conservancy journal " 2002 the 5th phases have been introduced the three-dimensional many principal stress planes load test of a kind of discretize system, test unit mainly is made up of vertical pillars, closed steel construction ring beam, supporting steel frame, and loading system mainly is made up of high-pressure gasbag, reaction thrust plate, spacing lifting jack and air compressor.Its test stand size is bigger, realized loading by principal direction of stress, but the test stand lateral deflection is big, and the three-dimensional that can't carry out the underground works model loads.
(4) " rock mechanics and engineering journal " the 21st phase in 2004 has been introduced a kind of plane strain tunnel rig for model test, and moulded dimension is 1m * 1m * 0.2m, vertical layout, and the three-dimensional that this testing table can't carry out the underground works model loads.
(5) " underground space " 2004 the 4th phases have been introduced a kind of vcehicular tunnel structure and country rock comprehensive experimental system, this system is based on the principle of " load earlier, then dig a hole ", adopt hydraulic jack to withstand on the model test piece external load to simulate overlying strata soil layer gravity stress, with built-in lifting jack and body stress response of displacement meter simulation excavation and change in displacement.The three-dimensional that this system can't carry out the underground works model loads.
(6) " civil engineering work journal " the 12nd phase in 2006, and application number is that 200510045291.7 Chinese patent has been introduced a kind of novel ground geomechanical model test system, this system have size adjustable, scale big, assemble advantage flexibly, but this system's open-top, can only carry out the model test under the plane strain state, the three-dimensional that can't carry out the underground works model loads.
(7) " rock mechanics and engineering journal " the 1st phase in 2008 has been introduced a kind of servocontrol High Temperature High Pressure rock mass triaxial test machine, and this testing machine can carry out the false triaxial test of rock under the high-temperature and high-pressure conditions, and specimen size is φ 200mm * 400mm.The physico mechanical characteristic that this testing machine is mainly tested rock under the high temperature loading environment changes, and the three-dimensional that can't carry out the underground works model loads.
(8) " rock mechanics and engineering journal " the 16th phase in 2005 has been introduced a kind of three soft rock non-linear mechanics experimental systems, this system can carry out triaxial tension and compression, draw and multiple composite test such as cut and the different uninstall process that add are simulated, the maximum pressure 450kN of system, maximum pull 75kN, test specimen full-size is 150mm * 150mm * 150mm.This system can only test the physical and mechanical parameter of small-scale model test specimen under the multiple stress assembled state, and the three-dimensional that can't carry out the underground works model loads.
(9) application number is that 8200810016641.0 Chinese patent discloses a kind of high crustal stress genuine three-dimensional load model trial system, it comprises intelligent hydraulic control system, high pressure loading system and counterforce device system, the high pressure loading system is arranged in the counterforce device system, the intelligent hydraulic control testing table of intelligent hydraulic control system is connected with the high pressure loading system by high-pressure oil pipe, the high pressure loading system comprises lifting jack and load plate, one end of lifting jack is connected with load plate, the other end with by the model reaction frame, the model counterforce device that ring flange and counter-force transmission plate are formed links to each other, six load plate that are connected with lifting jack be close to respectively test model before, after, a left side, right, on, on following six sides; Be connected with by hinged bolt on corresponding two load plate in front and back in described six load plate and can carry out the pilot tunnel dish that the cavern axially loads excavation.But, when carrying out the loading of model test three-dimensional, can run into a problem, be along with the loading of hydraulic jack on each loading surface, jack piston rod constantly outwards moves, if the model body compress variation is bigger, the loading lifting jack on two adjacent surfaces can hinder mutually, promptly " fight ", make hydraulic jack further to load.Therefore the present application patent is mainly by being provided with the three-dimensional loading problem that the guide housing device effectively solves model test.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of three-dimensionally loaded guide frame device for underground project model test is provided, it is simple in structure, easy to operate, can make model body about, about, front-back all has the reservation decrement, each stress surface of model is effectively contacted with the lifting jack loading surface, make the model body various piece can both be forced into predetermined payload values, reach the three-dimensional purpose that loads of underground works model.
For achieving the above object, the present invention adopts following technical proposals: a kind of three-dimensionally loaded guide frame device for underground project model test, comprise guide housing, described guide housing is arranged on the test model outside, load plate is partially submerged in the guide housing, the sidewall that load plate and test model surface of contact and load plate and guide housing frame column contact with each other is pasted with one deck antifriction material respectively, and guide housing is supported on the base plate of model reaction frame by high-strength screw rod.
Described guide housing is that foursquare stainless steel solid frame column is combined into the square three-dimensional framework by detachable high-strength bolt connection by 12 xsects, and the guide housing size can be adjusted according to the model size.
Described antifriction material is a teflon.
The present invention is to be the further technological improvement of carrying out on the basis of 8200810016641.0 Chinese patent " high crustal stress genuine three-dimensional load model trial system " at application number, by the guide housing device is set, make model body about, about, front-back all has the reservation decrement, each model stress surface is effectively contacted with the lifting jack loading surface, make the model body various piece can both be forced into predetermined payload values, thus the stress characteristic of the actual underground works of real simulation.On load plate and loading surface that test model contacts and on load plate and the sidewall that the guide housing frame column contacts, be pasted with one deck teflon antifriction material respectively, can reduce between load plate and the test model and the friction force between load plate and the guide housing.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Wherein 1. guide housings, 2. frame column, 3. coupling bolt, 4. support bar, 5. model counterforce device, 6. load plate, 7. test model, 8. lifting jack, 9. counter-force transmission plate.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Among Fig. 1, be provided with the square guide housing 1 of hollow in test model 7 outsides, guide housing 1 is that the square stainless steel solid frame column 2 of 50mm * 50mm connects the square three-dimensional framework that combines by dismountable coupling bolt 3 by 12 cross sectional dimensions, wherein four is 70cm than length, in addition eight short 60cm that are.Its external dimensions of combination back is the square of 70cm * 70cm * 70cm.The outer cross section of combination back guide housing is of a size of 70cm * 70cm, and inner section is of a size of 60cm * 60cm.Guide housing 1 is supported on the counter-force transmission plate 9 of model counterforce device 5 by four high-strength support bars 4.
The front end load plate 6 of hydraulic jack loading system is of a size of 60cm * 60cm, load plate 6 is inserted in the guide housing 1, depth is 5mm, like this, load plate 6 front end faces are 45mm apart from the frame column 2 inner faces distance of guide housing 1, be the model decrement that each face is reserved 45mm, on same direction (top to bottom, left and right, front and rear), promptly stay the decrement of 90mm in advance.Doing skeleton by guide housing 1, load plate 6 is done waist, the inner compacting of the framework that is together to form test model 7.Test model 7 is of a size of the square of 60cm * 60cm * 60cm, test model 7 each face (top to bottom, left and right, front and rear) go up with hydraulic jack 8 front end load plate 6 between the position, space of the 60cm * 60cm * 4.5cm analog material landfill identical with making test model 7.Suppress with test model 7 during compacting, so that this position is tightly compacted, so that can effectively transmit load in the process of the test.
Claims (3)
1. three-dimensionally loaded guide frame device for underground project model test, it is characterized in that: comprise guide housing, described guide housing is arranged on the test model outside, load plate is partially submerged in the guide housing, the sidewall that load plate and test model surface of contact and load plate and guide housing frame column contact with each other is pasted with one deck antifriction material respectively, and guide housing is supported on the base plate of model reaction frame by high-strength screw rod.
2. three-dimensionally loaded guide frame device for underground project model test according to claim 1 is characterized in that: described guide housing is that foursquare stainless steel solid frame column is combined into the square three-dimensional framework by detachable high-strength bolt connection by 12 xsects.
3. model test three-dimensionally loaded guide frame device according to claim 1 is characterized in that: described antifriction material is a teflon.
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| CN2009100146360A CN101514977B (en) | 2009-03-03 | 2009-03-03 | Three-dimensionally loaded guide frame device for underground project model test |
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| CN2009100146360A CN101514977B (en) | 2009-03-03 | 2009-03-03 | Three-dimensionally loaded guide frame device for underground project model test |
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| CN101514977B CN101514977B (en) | 2012-02-22 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102005153A (en) * | 2010-12-02 | 2011-04-06 | 东莞华中科技大学制造工程研究院 | Inner guide gapless mechanical matrix |
| CN102621001A (en) * | 2012-04-06 | 2012-08-01 | 河海大学 | True three-dimensional sliding variable dimension loading box device used for geomechanical model test |
| CN102879547A (en) * | 2012-09-29 | 2013-01-16 | 重庆大学 | Three-direction loading large-scale three-dimensional analog simulation test counterforce system |
| CN102879549A (en) * | 2012-09-29 | 2013-01-16 | 重庆大学 | Three-way load large-scale three-dimensional analog simulation test system |
| CN103454400A (en) * | 2013-07-11 | 2013-12-18 | 北京工业大学 | Model box applied to large stereoscopic synthesis simulation test bench in geotechnical engineering |
| CN106442143A (en) * | 2016-10-10 | 2017-02-22 | 青岛科技大学 | Soft-rock-like-simulated-roadway-project model test device |
| CN106989987A (en) * | 2017-03-30 | 2017-07-28 | 西京学院 | A kind of multi-functional loaded ring experimental rig |
| CN108169000A (en) * | 2017-12-15 | 2018-06-15 | 山东大学 | True triaxial loading device and method in a kind of geomechanical model test |
| CN108387452A (en) * | 2018-03-22 | 2018-08-10 | 中国科学院武汉岩土力学研究所 | Triaxiality device and stress simulation system |
| CN109974593A (en) * | 2019-04-01 | 2019-07-05 | 太原理工大学 | A kind of experimental rig and test method for simulating soil body cavity expansion |
| WO2020118776A1 (en) * | 2018-12-11 | 2020-06-18 | 山东大学 | True three-dimensional physical model testing system for simulating burst water disaster in deep cavern |
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| CN107561246B (en) * | 2017-09-29 | 2020-07-14 | 中冶交通建设集团有限公司 | Landslide model test device |
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| CN100432651C (en) * | 2005-11-30 | 2008-11-12 | 山东大学 | Three-qimension geomechanics model exporiment system |
| CN2870043Y (en) * | 2005-12-01 | 2007-02-14 | 山东大学 | 3-D geological mechanics model testing stand apparatus |
| CN101285808B (en) * | 2008-05-29 | 2010-08-04 | 山东大学 | High crustal stress genuine three-dimensional load model trial system |
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2009
- 2009-03-03 CN CN2009100146360A patent/CN101514977B/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005153A (en) * | 2010-12-02 | 2011-04-06 | 东莞华中科技大学制造工程研究院 | Inner guide gapless mechanical matrix |
| CN102005153B (en) * | 2010-12-02 | 2011-11-23 | 东莞华中科技大学制造工程研究院 | Inner guide gapless mechanical matrix |
| CN102621001A (en) * | 2012-04-06 | 2012-08-01 | 河海大学 | True three-dimensional sliding variable dimension loading box device used for geomechanical model test |
| CN102879547A (en) * | 2012-09-29 | 2013-01-16 | 重庆大学 | Three-direction loading large-scale three-dimensional analog simulation test counterforce system |
| CN102879549A (en) * | 2012-09-29 | 2013-01-16 | 重庆大学 | Three-way load large-scale three-dimensional analog simulation test system |
| CN102879547B (en) * | 2012-09-29 | 2015-01-14 | 重庆大学 | Three-direction loading large-scale three-dimensional analog simulation test counterforce system |
| CN102879549B (en) * | 2012-09-29 | 2015-07-08 | 重庆大学 | Three-way load large-scale three-dimensional analog simulation test system |
| CN103454400A (en) * | 2013-07-11 | 2013-12-18 | 北京工业大学 | Model box applied to large stereoscopic synthesis simulation test bench in geotechnical engineering |
| CN106442143A (en) * | 2016-10-10 | 2017-02-22 | 青岛科技大学 | Soft-rock-like-simulated-roadway-project model test device |
| CN106989987A (en) * | 2017-03-30 | 2017-07-28 | 西京学院 | A kind of multi-functional loaded ring experimental rig |
| CN108169000A (en) * | 2017-12-15 | 2018-06-15 | 山东大学 | True triaxial loading device and method in a kind of geomechanical model test |
| CN108387452A (en) * | 2018-03-22 | 2018-08-10 | 中国科学院武汉岩土力学研究所 | Triaxiality device and stress simulation system |
| CN108387452B (en) * | 2018-03-22 | 2023-11-17 | 中国科学院武汉岩土力学研究所 | Three-dimensional stress device and stress simulation system |
| WO2020118776A1 (en) * | 2018-12-11 | 2020-06-18 | 山东大学 | True three-dimensional physical model testing system for simulating burst water disaster in deep cavern |
| CN109974593A (en) * | 2019-04-01 | 2019-07-05 | 太原理工大学 | A kind of experimental rig and test method for simulating soil body cavity expansion |
| CN109974593B (en) * | 2019-04-01 | 2020-09-25 | 太原理工大学 | Testing device and testing method for simulating expansion of soil body column hole |
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