CN102135475A - Direct-cutting antiskid structure model tester - Google Patents
Direct-cutting antiskid structure model tester Download PDFInfo
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- CN102135475A CN102135475A CN2010102445181A CN201010244518A CN102135475A CN 102135475 A CN102135475 A CN 102135475A CN 2010102445181 A CN2010102445181 A CN 2010102445181A CN 201010244518 A CN201010244518 A CN 201010244518A CN 102135475 A CN102135475 A CN 102135475A
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Abstract
The invention provides a direct-cutting antiskid structure model tester. The direct-cutting antiskid structure model tester comprises a cutting system consisting of a steel plate base, a lower cutting box, an upper cutting box and a steel linear guide rail, and a loading system consisting of a counterforce rack and a jack; the upper cutting box is connected with the lower cutting box through the steel linear guide rail; and the lower cutting box is connected with the counterforce rack through the steel plate base. The direct-cutting antiskid structure model tester has the advantages that: the steel linear guide rail is used for replacing roll balls, so the shortcoming that the roll balls are not fixed can be avoided; as the guide rail is arranged on angular steel on the outer side of the wall of the upper cutting box, the wall made of organic glass is light in weight and convenient to observe, and the width of a cutting gap cannot be restrained by the guide rail at the same time; the sliding central panel of the guide rail is a slightly higher than the central panel of the cutting gap, so the influence on a test result due to a soil body entering the guide rail during test can be avoided; and the counterforce rack is fixed to the lower cutting box through the base so that the direct-cutting antiskid structure model tester can keep balanced in a loading direction without an extra counterforce device.
Description
Technical field
The present invention relates to a kind of model test equipment, it specifically is a kind of staight scissors formula model test instrument that is used for the antiskid structural model test, can carry out model investigation to the internal force deformation behaviour of side slope (landslide) retaining structure under the Thrust of Landslide effect, thereby be that side slope (landslide) is administered and the research of anti-sliding support architectural characteristic provides technical support.
Background technology
For the generation of side slope geologic hazards such as (landslides) and prevent and treat Study on Problems, except carrying out theoretical analysis and on-the-spot test research, more to solve by the rock soil mass geomechanical model test.Geomechanical model test mainly is divided into two big classes at present, and a class is centrifugal model test, and another kind of is common geomechanical model test.
Centrifugal model test is being dwindled geotechnical structure thing or ground in N times, utilize centrifugal field to improve the body force of model, the artificial N acceleration of gravity doubly that forms is added on the model, under the prerequisite of assurance and prototype geometric similarity, has also guaranteed their mechanical similitude like this; But centrifugal force distributes and far is evenly distributed unlike the gravity on stratum in the centrifugal model test, causes the error of centrifugal acceleration field, considers that simultaneously the expense of centrifugal model test is higher, so centrifugal model test is used less relatively.
In the general geology mechanical model of side slope (landslide) the anti-sliding support structure test at present, normally select suitable ratio of similitude preparation cast material (comprising sliding bed, gliding mass, sliding band and Model Pile etc.) earlier, lay Model Pile and soil pressure cell measuring point etc. according to the model test scheme that has designed again, at last after the landslide modelling is finished, the method or the employing lifting jack that adopt heap to add sandbag carry out the classification load application, thereby obtain a result, this test method all needs to make large-scale model support usually, and its load mode comparatively labor intensive and material resources.
Current existing part scholar has carried out experimental study by the direct shear test mode to side slope anti-sliding support structures such as (landslides).Tomspon etc. [2006] utilize simple shear to cut BOX Model, studied the loading transmission of miniature friction pile when soil body sideway movement, adopt single shear box to promote soil body sideway movement in the test, but what it carried out is site test research, only be provided with sliding rail and shear box with top, do not form the complete staight scissors formula test unit of a cover on ground.Ding Jianming etc. [2005] utilize indoor small-sized direct shear apparatus to the geosynthetics of three kinds of different roughness and clay at different moisture content, carried out direct shear test research under the pressure at right angle, drawn pressure at right angle, the roughness of water cut and geosynthetics is to the rule that influences of cutting performance between the muscle soil, its utilization be indoor small-sized direct shear apparatus, shear box all connects by ball up and down, its shortcoming is comparatively obvious, be that ball is unfixing, uneven distribution and dropping easily, and the soil body enters the slit between the ball easily and then influences test effect in the model test process.You Di [2009] utilizes the staight scissors mode to carry out indoor friction pile and reinforces rock matter along layer side slope model test, under the situation that main research sliding surface exists, the internal force of friction pile is with the Changing Pattern of horizontal Thrust of Landslide in the suitable layer of the rock matter side slope, but there are not staight scissors model equipments such as corresponding shear box up and down in its process of the test, but direct fixing bottom sillar model utilizes lifting jack directly to promote top sillar model research experiment.
The two on-the-spot direct shear apparatus utility model patents of box of back pressure type (application number 200520097228.3) provide a kind of on-the-spot direct shear test device that can be used for the soil in-situ shear test, without any connection, there is not the influence of considering that the friction between the shear box up and down brings between last shear box and the down cut box.Large-scale indoor and on-the-spot dual-purpose staight scissors device utility model patent (application number 200420057748.7) of strain control type and rock-soil mechanics direct shearing test system patent of invention (application number 200410061351.X) a kind ofly can be used for the large-scale on-the-spot in-situ direct shear test of various fine grained soils, coarse-grained soil and soft rock and the shear of indoor direct shear test, last shear box directly is connected with ball with the down cut box, the skewness of ball and dropping easily, and the soil body enters the slit between the ball easily and then influences test effect in the model test process.A kind of coarse-grained soil direct shear apparatus patent of invention (application number 200310110739.X) and coarse-grained soil direct shear apparatus utility model patent (application number 200320114794.1) are the direct shear apparatuses that a kind of displacement transducer by last shear box of measurement or down cut box displacement is controlled the normal stress size, are used for measuring the shearing strength of coarse-grained soil.Strain controlled direct shear apparatus utility model patent (application number 200620049927.5) is a kind of direct shear apparatus of measuring the soil sample shearing strength, connects by ball between shear box and the down cut box on it, is used for the test of small-sized soil sample intensity.A kind of direct shear apparatus patent of invention (application number 200810048416.5) that can directly measure interface friction force provides a kind of staight scissors device that can directly measure interface friction force between soil sample and the last shear box, still adopt ball to connect up and down between the shear box, and extra counterforce device need be set.More than each staight scissors formula invention or utility model patent shear strength parameter of all only relating to on-the-spot or indoor soil sample measure, not have to consider to be used for the needs that the antiskid structural model test is studied.
To sum up, yet there are no the report that utilizes the special direct shear test equipment of developing to carry out the correlation model experimental study in side slope (landslide) the anti-sliding support structural model test research at present.
Summary of the invention
The technical issues that need to address of the present invention are, overcome the deficiency in the background technology, a kind of stable staight scissors formula model test equipment that can keep self-equilibrating on loading direction is provided, and this equipment can be used for the model investigation of side slope (landslide) retaining structure characteristic.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of staight scissors formula antiskid structural model test instrument is provided, this test instrument comprises cutting system and loading system two large divisions, and wherein cutting system mainly is made up of steel plate base, down cut box, last shear box and steel line slideway; Loading system mainly is made up of reaction frame, load transducer and hydraulic jack.Link together by the steel line slideway between last shear box and the down cut box, the steel line slideway is installed on the angle steel of shear box box wall outer lower portion, keeps guide rail slip central plane a little more than shearing the seam central plane.Down cut box and reaction frame form an integral body by the steel plate base and maintain static, and at the trailing flank of last shear box bogey are set, and load transducer is installed on the bogey, and last shear box is done relative slip with respect to the down cut box under the horizontal thrust effect.
The invention has the beneficial effects as follows: in this staight scissors formula antiskid structural model test instrument, replace ball, avoided defectives such as ball is unfixing, skewness with the steel line slideway; Because guide rail is installed on the angle steel in the shear box box wall outside, thereby the box wall can use transparent organic glass, and is in light weight, is convenient to observation, the width of shearing seam is not simultaneously limited by guide rail, can shear the width of seam according to actual needs by the height control of adjusting the shear box wall; Guide rail slip central plane is a little more than shearing the seam central plane, avoided that the soil body enters guide rail and influences test effect in the process of the test; Reaction frame is fixed by base and down cut box, thereby makes this staight scissors formula model test equipment can keep self-equilibrating on loading direction, does not need extra counterforce device.Simultaneously, by being set, set bolt guaranteed that model fills the stationkeeping that goes up shear box in the process, by the landing that design has guaranteed to test required cutting stroke and the soil body in the shear box is gone up in the back of having avoided sliding.
Description of drawings
Accompanying drawing 1 is the right flank diagram of staight scissors formula antiskid structural model test instrument of the present invention;
Accompanying drawing 2 is that the front elevation view of staight scissors formula antiskid structural model test instrument of the present invention shows.
Wherein:
Numbering title numbering title
B down cut box 5 set bolts
C steel plate base 6 is sheared seam
D steel line slideway 7 channel-section steels
E reaction frame 8 load transducers
F charger 9 lifting jack
1 angle steel, 10 little steel plates
2 steel plates, 11 horizontal supporting plates
3 poly (methyl methacrylate) plates
Embodiment
With reference to accompanying drawing 1, accompanying drawing 2 and in conjunction with respective embodiments, the embodiment of staight scissors formula antiskid structural model test instrument provided by the invention is described.
This staight scissors formula antiskid structural model test instrument comprises cutting system and loading system two large divisions.Cutting system mainly is made up of last shear box, down cut box, steel plate base and steel line slideway; Loading system mainly is made up of reaction frame, lifting jack, load transducer.
The overall height of cutting system is 1245mm among the embodiment, wherein, the high 496mm of last shear box, the high 700mm of down cut box shears the wide 4mm of seam, and the thickness of steel plate base is 45mm.The clean length and width of last shear box and down cut box is 600mm, and the box skeleton is welded by the angle steel of different model.The box wall adopts the thick poly (methyl methacrylate) plate of 8mm, by bolt and box skeletal fixation together.Down cut box and steel plate base are welded into an integral body.
Link together by the steel line slideway between last shear box and the down cut box.See accompanying drawing 2, the steel line slideway is installed in the outside of shear box left and right sides box wall, be connected in by sheet steel and bolt on the reinforcing angle of bottom, the shear box left and right sides, be about to guide rail and be fixed in earlier on the sheet steel, with bolt the basifacial reinforcing angle of the sheet steel and the last shear box left and right sides is fixed together again.Every guide rail is provided with two bases.Down cut box top reinforcing angle surface is provided with 4 draw-in grooves, and every guide rail correspondence is along two draw-in grooves of loading direction, and draw-in groove can be with the fixed position base of guide rail.Because the steel line slideway has been installed on the angle steel in the last shear box box wall outside, thereby the box wall can use transparent organic glass, and is in light weight, is convenient to observation, and the width of shearing seam simultaneously also can not limited by guide rail, can adjust as required; The central plane of guide rail slip simultaneously is a little more than shearing the seam central plane, avoided that the soil body enters guide rail and influences test effect in the process of the test.
Trailing flank at last shear box is provided with bogey.Bogey among the embodiment is welded to each other by channel-section steel, strengthening steel slab and the last shaped steel of shear box at this position and forms, and load transducer is installed on the bogey, is used to measure the actual horizontal thrust that is applied on the shear box.
See accompanying drawing 1 and accompanying drawing 2, last shear box is fixed on the down cut box by bolt is provisional, and is motionless to guarantee that model fills in the process stationkeeping of shear box.The positive facade of down cut box top is provided with horizontal supporting plate (steel plate), in specific embodiment, horizontal supporting plate is with respect to the long 12cm of last shear box leading edge, be welded with the little steel plate of two high 5cm at the outer peripheral two ends of horizontal supporting plate, both can satisfy test trip by above-mentioned design, also can prevent to go up in the process of the test landing of the soil body in the shear box.
In loading system, reaction frame is welded by the channel-section steel with enough rigidity, on the reaction frame crossbeam, hydraulic jack is set with the corresponding position of load transducer, lifting jack is installed in the draw-in groove of lifting jack, and the draw-in groove of lifting jack is made of the angle steel that is welded in two ∠ 50 * 5 on the reaction frame crossbeam.
Reaction frame and steel plate base weld together, the steel plate base is connected with the down cut box again, thereby reaction frame and down cut box become a fixing integral body, make this staight scissors formula antiskid structural model test instrument can keep self-equilibrating on loading direction, do not need extra counterforce device.
Claims (4)
1. staight scissors formula antiskid structural model test instrument, comprise shear box a, down cut box b, steel plate base c, steel line slideway d, reaction frame e and charger f six major parts, it is characterized in that sliding relatively by steel line slideway d between described shear box a of going up and the down cut box b.
2. the shear box of going up according to claim 1 is characterized in that described steel line slideway d has been installed on the reinforcing angle of last shear box a left side right box wall outer lower portion.
3. steel line slideway according to claim 2, it is characterized in that described two steel line slideway d are the draw-in grooves that place on the base and be fixed in the last relevant position of down cut box b, the slip central plane of steel line slideway d is a little more than the central plane of shearing seam.
4. reaction frame according to claim 1, it is characterized in that described reaction frame e is connected with down cut box b successively with steel plate base c, be reaction frame e and steel plate base c welding, steel plate base c is connected with down cut box b again, and the three becomes a fixing integral body.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928293A (en) * | 2012-10-26 | 2013-02-13 | 重庆交通大学 | Dynamic and static testing system and method for multifunctional wharf structure |
| CN103091246A (en) * | 2013-01-11 | 2013-05-08 | 北京交通大学 | Device for determining friction coefficient of railway ballast mat and railway ballast |
| CN103852371A (en) * | 2014-03-12 | 2014-06-11 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Visual shearing and sample loading box applicable to direct shear test of coarse-grained soil |
| CN105758736A (en) * | 2014-12-11 | 2016-07-13 | 国家电网公司 | In-situ direct shear device with self-balanced shear forces |
| CN106323764A (en) * | 2016-08-15 | 2017-01-11 | 北京林业大学 | In-situ whole root soil reinforcement effect testing instrument |
| CN107314880A (en) * | 2017-08-07 | 2017-11-03 | 北京工业大学 | The shock test device and its installation method of a kind of assembled light gauge cold-formed steel shape wall |
| CN109406303A (en) * | 2019-01-09 | 2019-03-01 | 福州大学 | Orient the large-scale indoor direct shear apparatus of self-balancing type and its working method of low friction |
| CN110361272A (en) * | 2019-08-09 | 2019-10-22 | 广西科技大学 | A kind of staight scissors and the compound experimental rig cut |
| CN113237779A (en) * | 2021-04-26 | 2021-08-10 | 上海大学 | Direct shear test device for testing interface performance of geosynthetic material under THMC coupling effect |
| CN114809121A (en) * | 2022-03-28 | 2022-07-29 | 台州市椒江建设工程质量检测中心有限公司 | Pile foundation horizontal load test device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW475026B (en) * | 2001-07-26 | 2002-02-01 | Hsi-Huan Lu | Method and device of taking earth sample and rock sample at anchor base area used in anchor drilling |
| CN2911658Y (en) * | 2006-01-25 | 2007-06-13 | 长沙理工大学 | Direct shear instrument with linear guidway |
| CN101105433A (en) * | 2007-07-26 | 2008-01-16 | 河海大学 | Portable on-spot and indoor dual-purpose direct-cutting experiment instrument and its sampling method |
| CN101347965A (en) * | 2008-09-03 | 2009-01-21 | 武汉建工股份有限公司 | Method for cutting air-entrained concrete building blocks and cutter |
| CN101419143A (en) * | 2008-11-21 | 2009-04-29 | 同济大学 | Bidirectional composite force loading test device for masonry test piece |
| CN101592575A (en) * | 2009-05-27 | 2009-12-02 | 中国科学院地质与地球物理研究所 | Airbag-loading potable weak and soft interlayer direct shear apparatus |
-
2010
- 2010-08-04 CN CN2010102445181A patent/CN102135475A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW475026B (en) * | 2001-07-26 | 2002-02-01 | Hsi-Huan Lu | Method and device of taking earth sample and rock sample at anchor base area used in anchor drilling |
| CN2911658Y (en) * | 2006-01-25 | 2007-06-13 | 长沙理工大学 | Direct shear instrument with linear guidway |
| CN101105433A (en) * | 2007-07-26 | 2008-01-16 | 河海大学 | Portable on-spot and indoor dual-purpose direct-cutting experiment instrument and its sampling method |
| CN101347965A (en) * | 2008-09-03 | 2009-01-21 | 武汉建工股份有限公司 | Method for cutting air-entrained concrete building blocks and cutter |
| CN101419143A (en) * | 2008-11-21 | 2009-04-29 | 同济大学 | Bidirectional composite force loading test device for masonry test piece |
| CN101592575A (en) * | 2009-05-27 | 2009-12-02 | 中国科学院地质与地球物理研究所 | Airbag-loading potable weak and soft interlayer direct shear apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 王舒: "土工大直剪仪的开发及应用研究", 《中国优秀硕士学位论文全文数据库科技工程II辑》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928293A (en) * | 2012-10-26 | 2013-02-13 | 重庆交通大学 | Dynamic and static testing system and method for multifunctional wharf structure |
| CN103091246A (en) * | 2013-01-11 | 2013-05-08 | 北京交通大学 | Device for determining friction coefficient of railway ballast mat and railway ballast |
| CN103852371A (en) * | 2014-03-12 | 2014-06-11 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Visual shearing and sample loading box applicable to direct shear test of coarse-grained soil |
| CN103852371B (en) * | 2014-03-12 | 2016-08-17 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Dress sample box is sheared in a kind of coarse-grained soil direct shear test visualization |
| CN105758736A (en) * | 2014-12-11 | 2016-07-13 | 国家电网公司 | In-situ direct shear device with self-balanced shear forces |
| CN106323764A (en) * | 2016-08-15 | 2017-01-11 | 北京林业大学 | In-situ whole root soil reinforcement effect testing instrument |
| CN107314880A (en) * | 2017-08-07 | 2017-11-03 | 北京工业大学 | The shock test device and its installation method of a kind of assembled light gauge cold-formed steel shape wall |
| CN109406303A (en) * | 2019-01-09 | 2019-03-01 | 福州大学 | Orient the large-scale indoor direct shear apparatus of self-balancing type and its working method of low friction |
| CN110361272A (en) * | 2019-08-09 | 2019-10-22 | 广西科技大学 | A kind of staight scissors and the compound experimental rig cut |
| CN110361272B (en) * | 2019-08-09 | 2024-03-15 | 广西科技大学 | Test device for direct shear and composite shearing |
| CN113237779A (en) * | 2021-04-26 | 2021-08-10 | 上海大学 | Direct shear test device for testing interface performance of geosynthetic material under THMC coupling effect |
| CN114809121A (en) * | 2022-03-28 | 2022-07-29 | 台州市椒江建设工程质量检测中心有限公司 | Pile foundation horizontal load test device |
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Application publication date: 20110727 |