CN201060186Y - Foundation and slope engineering model testing platform - Google Patents
Foundation and slope engineering model testing platform Download PDFInfo
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- CN201060186Y CN201060186Y CNU2007201115169U CN200720111516U CN201060186Y CN 201060186 Y CN201060186 Y CN 201060186Y CN U2007201115169 U CNU2007201115169 U CN U2007201115169U CN 200720111516 U CN200720111516 U CN 200720111516U CN 201060186 Y CN201060186 Y CN 201060186Y
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Abstract
The utility model discloses a foundation and slope engineering model test platform. An instrument burying hole and a data lead hole are arranged on one long side face of the side steel plate of the main structure, a view window is arranged on the other side face; a water supply pipe net is arranged in the gravel and sand cushion layer on the bottom of the rectangular steel structure model groove, the pipe net is connected with a water tank and a vacuum water pumping device. A scupper is arranged on one short side face of the side steel plate of the main structure. A reaction beam with buckles on the two ends is connected astride the two long sides of the pillar of the main steel structure. A servo loading system composed of a hydraulic jack, a spherical hinge and a bearing board is arranged on the lower end face of the reaction beam. A displacement sensor, an earth pressure sensor, a hole water pressure sensor and the like are connected to form a monitoring system. The test platform can be used in carrying out the model test and study of various hazard conditions and various reinforcement methods on the foundation and slope engineering.
Description
Technical field
The utility model relates to a kind of model test apparatus that is used for the Geotechnical Engineering technical field, particularly relate to a kind of model test platform that is applicable to ground and slope project.
Background technology
China is the country that a mountain region, hills extensively distribute, and tends to run into various side slopes when civil engineering construction, comprises natural side slope, excavation side slope and fills side slope.Unstability may take place these side slopes (as heavy rain, water level rising, excavation, preloading etc.) under various natures or man-made disaster condition slides, and causes casualties and property loss.Because the calamity factor that the causes complexity of side slope is various, its unstability pattern, catastrophe mechanism are very complicated.For deeply being familiar with side slope catastrophe mechanism under the complicated environmental condition, correct stability and economic, effectively anti-(subtracting) calamity engineering measure of proposition of estimating side slope, need carry out the research of big guide landslide disaster simulation test at different geologic conditions, disclose side slope unstability pattern and catastrophe mechanism, carry out the comparison of dangerous slope reinforcement scheme, and checking Geotechnical Engineering numerical analysis theory and software.
In addition, in the foundation works practice, also often meet with unfavorable geological condition, as soft clay foundation.Soft foundation disposal route and technology are one of important Geotechnical Engineering problems of current soft clay area.The foundation model test of big guide both can be carried out the research of foundation deformation and instability Mechanism, also can carry out the ratio choosing of flabbiness ground strengthened scheme.This test platform can force concretion method, flexible pile composite foundation, rigid pile foundation etc. to carry out big proportional model test research to preloading, vacuum method, the IFCO of soft foundation.
Geotechnical model test means commonly used both at home and abroad at present comprise centrifugal model test and 1g model test.The centrifugal model test advantage is to reappear with less model the stress field of prototype, and its weak point is the soil particle size effect, in addition because moulded dimension is less, the type selecting of surveying instrument, arranges and bury underground the comparison difficulty.The size of the 1g geotechnical model test system of at present relevant bibliographical information is smaller, function ratio more single (promptly a pilot system can only be used for single factor catastrophe simulation test).
Summary of the invention
The purpose of this utility model is to overcome the deficiency of existing geotechnical model test technology, a kind of ground and slope engineering model test platform are provided, make it can simulate multiple side slope (or ground) the unstability process that causes calamity condition, multiple reinforcing mode, disclose unstability pattern and catastrophe mechanism, provide foundation for selecting anti-economically and reasonably (subtracting) calamity engineering measure.
The technical solution adopted in the utility model is:
Comprise the rectangular bar of steel structural model groove that main body beam column of steel structure and agent structure side steel plate are formed, row, every row have a plurality of instrument embeddings hole and data extension line hole more than vertically being provided with side by side on one side, long limit of agent structure side steel plate, and row, every row have a plurality of visual windows more than vertically being provided with on the another side, long limit of agent structure side steel plate; In the rubble of rectangular bar of steel structural model trench bottom and sand bedding course, be provided with the branch road water pipe pipe networks that many rows take the water hole out of, after the branch road water pipe pipe network of taking the water hole out of is interconnected, after several are respectively with the water pipe of first by-pass valve control and hard cross current, be divided into two-way, one the tunnel behind second by-pass valve control water receiving case, connect the vacuum water plug behind another Lu Jingdi three by-pass valve controls and the 4th by-pass valve control; Minor face one side of agent structure side steel plate is provided with osculum; Face length limit both sides cross-over connection reaction beam on the main body beam column of steel structure, the reaction beam two ends have buckle respectively, reaction beam is strained and fixed with buckle after sliding along long limit, the reaction beam lower surface is provided with several hydraulic jack by hydraulic control system control, the servo loading system that several lifting jack sliding ends connect to form with globular hinge and bearing plate respectively; Face length limit both sides cross-over connection displacement transducer movable supporting frame on the main body beam column of steel structure, displacement transducer movable supporting frame below is provided with several displacement transducers, and displacement transducer movable supporting frame, displacement transducer, soil pressure sensor and pore water pressure sensor connect to form monitoring system.
Described water tank hangs on the sliding rail of the lifting support of being with chain block, is provided with in the water tank to keep the constant constant head ball-cock assembly of water level.
The utility model is compared the beneficial effect that has with background technology:
(1) can produce multiplely cause calamity and reinforcing condition, analog functuion is many, comprises preloading, excavation, groundwater level fluctuation, vacuum preloading, composite foundation, pile foundation etc.;
(2) can simulate the side slope and the ground of multiple Different Strata combination condition; Soil layer condition, underground water table, initial stress state and boundary condition are controlled, known in ground and the side slope model;
(3) model groove size big (agent model groove inside dimension is long 15m * wide 5m * high 6m) can be carried out big proportional model test, and the size effect and the boundary effect of model test are little;
(4) design of site type steel construction model groove makes it have good visuality (being visual windows), and is convenient to burying underground of instrument and equipment;
(5) monitoring system comprehensively, comprehensively can realize automatic, the monitoring in real time of a plurality of physical quantitys; Monitoring instrument is buried underground relatively easily, and test operation is fairly simple;
(6) has movably reaction beam device, the load test of conveniently carrying out diverse location and combination.
Description of drawings
Fig. 1 is the test platform synoptic diagram.
Fig. 2 is the synoptic diagram of how to obey charger.
Among the figure: 1, the main body beam column of steel structure, 2, agent structure side steel plate, 3, the instrument embedding hole, 4, the data line fairlead, 5, visual windows, 6, the vacuum water plug, 7, water tank, 8, the constant head ball-cock assembly, 9, chain block, 10, flexible pipe, 11, promote support, 12, by-pass valve control, 13, the positive/negative pressure table, 14, the hard water pipe, 15, take the branch road water pipe pipe network in water hole out of, 16, rubble and sand bedding course, 17, osculum, 18, reaction beam, 19, buckle, 20, hydraulic jack, 21, bearing plate, 22, globular hinge, 23, the displacement transducer movable supporting frame, 24, displacement transducer, 25, soil pressure sensor, 26, pore water pressure sensor, 27, the side slope model, 28, fluid pressure line, 29, hydraulic control system.
Embodiment
As shown in Figure 1 and Figure 2, the utility model comprises the rectangular bar of steel structural model groove that main body beam column of steel structure 1 and agent structure side steel plate 2 are formed, and the inner bottom surface of this groove and four medial surfaces are all taked seal approach, accomplish in use water-tight, air tight; Agent structure side steel plate 2 inwalls have carried out special smooth treatment, can reduce side friction and boundary effect; Vertically be provided with many rows on one side, long limit of agent structure side steel plate 2 side by side, every row has a plurality of instrument embeddings hole 3 and data extension line hole 4, bury underground and the drawing of instrument signal line to make things convenient for monitoring instrument; Row, every row have a plurality of sides visual windows 5 more than vertically being provided with on the another side, long limit of agent structure side steel plate 2, see through the lateral shift that the soil body in the process of the test could be observed and measure to visual windows, and the visual windows periphery is taked special seal approach; Be provided with the branch road water pipe pipe networks 15 that many rows take the water hole out of in the rubble of rectangular bar of steel structural model trench bottom and sand bedding course 16, this bed course can make the head of model trench bottom evenly distribute; After the branch road water pipe pipe network 15 of taking the water hole out of is interconnected, through several respectively with the water pipe of first by-pass valve control 12 be divided into two-way after hard water pipe 14 is communicated with, one the tunnel behind second by-pass valve control 12 and flexible pipe 10 water receiving case 7, connect vacuum water plug 6 behind another Lu Jingdi three by-pass valve controls 12 and the 4th by-pass valve control 12, be connected to positive/negative pressure table 13 on the hard water pipe 14; The 3rd by-pass valve control 12 and the 4th by-pass valve control 12 are closed, open second by-pass valve control 12, can control the underground water table height by the height of control water tank; Minor face one side of agent structure side steel plate 2 is provided with osculum 17, can reduce water level in the model groove by draining by this hole; Face length limit both sides cross-over connection reaction beam 18 on main body beam column of steel structure 1, reaction beam 18 two ends have buckle 19 respectively, reaction beam 18 is strained and fixed with buckle 19 after sliding along long limit, reaction beam 18 lower surfaces are provided with the hydraulic jack 20 of being arranged through several five equilibriums of fluid pressure line 28 controls by hydraulic control system 29, the servo loading system that several lifting jack 20 sliding ends connect to form with globular hinge 22 and bearing plate 21 respectively, this snap fit mode has greatly made things convenient for the displacement of reaction beam 18, by the position of conversion reaction beam, can be implemented in diverse location loading in the model according to the test needs; Face length limit both sides cross-over connection displacement transducer movable supporting frame 23 on main body beam column of steel structure 1, displacement transducer movable supporting frame 23 belows are provided with the displacement transducer 24 that several five equilibriums are arranged, displacement transducer movable supporting frame 23, displacement transducer 24, soil pressure sensor 25 and pore water pressure sensor 26 connect to form monitoring system, real-time monitoring and automatic record that this monitoring system links to each other with automatic data acquisition system and is used for the many physical quantitys of model test process.
Described water tank 7 hangs on the sliding rail of the lifting support 11 of being with chain block 9, is provided with in the water tank 7 to keep the constant constant head ball-cock assembly 8 of water level.
Embodiment: the existing test that causes coming down with slope, bank top, a slope loading of bordering on the river is the using method that example illustrates this test platform.
In the steel construction model groove of the test platform that main body beam column of steel structure 1 and agent structure side steel plate 2 formed, fill the high side slope model 27 of certain slope and slope.The soil layer condition of side slope model 27 can be according to the preparation of test demand, as homogeneous silt side slope, multilayer soil-slope etc.The dam filling construction of side slope model can adopt sand rain method, also can utilize rammer compacter by certain density compacting after filling.Side slope model 27 fills in the process and buries monitoring instruments such as soil pressure sensor 25, pore water pressure sensor 26, water cut probe underground in the inner some positions of side slope, and the embedded instrument data line is drawn from data line fairlead 4; After the side slope model fills and finishes,, tensiometer is inserted in the side slope model by the instrument embedding hole 3 that is arranged on the agent structure side steel plate 2 at the some location arrangements displacement transducers 24 in domatic and sloping top, inclinator.
After side slope is filled and is finished, the priming level control system utilizes chain block 9 that the water level of constant head water tank 7 is progressively raise, and first by-pass valve control 12 and second by-pass valve control 12 are opened, side slope model middle water level is constantly raise, in the side slope model, reach required underground water table.
Above-mentioned embodiment is used for the utility model of explaining; rather than the utility model limited; in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection domain of the present utility model.
Claims (2)
1. ground and slope engineering model test platform, it is characterized in that: comprise the rectangular bar of steel structural model groove that main body beam column of steel structure (1) and agent structure side steel plate (2) are formed, row, every row have a plurality of instrument embeddings hole (3) and data extension line hole (4) more than vertically being provided with side by side on one side, long limit of agent structure side steel plate (2), and row, every row have a plurality of visual windows (5) more than vertically being provided with on the another side, long limit of agent structure side steel plate (2); In the rubble of rectangular bar of steel structural model trench bottom and sand bedding course (16), be provided with the branch road water pipe pipe networks (15) that many rows take the water hole out of, after the branch road water pipe pipe network (15) of taking the water hole out of is interconnected, through several respectively with the water pipe of first by-pass valve control (12) be divided into two-way after hard water pipe (14) is communicated with, one the tunnel behind second by-pass valve control (12) water receiving case (7), connect vacuum water plug (6) behind another Lu Jingdi three by-pass valve controls (12) and the 4th by-pass valve control (12); Minor face one side of agent structure side steel plate (2) is provided with osculum (17); Go up face length limit both sides cross-over connection reaction beam (18) at main body beam column of steel structure (1), reaction beam (18) two ends have buckle (19) respectively, reaction beam (18) is strained and fixed with buckle (19) after sliding along long limit, reaction beam (18) lower surface is provided with several the hydraulic jack (20) by hydraulic control system (29) control, the servo loading system that several lifting jack (20) sliding end uses globular hinge (22) and bearing plate (21) to connect to form respectively; Go up face length limit both sides cross-over connection displacement transducer movable supporting frame (23) at main body beam column of steel structure (1), displacement transducer movable supporting frame (23) below is provided with several displacement transducers (24), and displacement transducer movable supporting frame (23), displacement transducer (24), soil pressure sensor (25) and pore water pressure sensor (26) etc. connect to form monitoring system.
2. a kind of ground according to claim 1 and slope engineering model test platform, it is characterized in that: described water tank (7) hangs on the sliding rail of the lifting support (11) of being with chain block (9), is provided with in the water tank (7) to keep the constant constant head ball-cock assembly (8) of water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201115169U CN201060186Y (en) | 2007-07-03 | 2007-07-03 | Foundation and slope engineering model testing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201115169U CN201060186Y (en) | 2007-07-03 | 2007-07-03 | Foundation and slope engineering model testing platform |
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| CN201060186Y true CN201060186Y (en) | 2008-05-14 |
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| CNU2007201115169U Expired - Lifetime CN201060186Y (en) | 2007-07-03 | 2007-07-03 | Foundation and slope engineering model testing platform |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086494B (en) * | 2007-07-03 | 2010-05-26 | 浙江大学 | Foundation and slope engineering model test platform |
| CN102401733A (en) * | 2011-11-01 | 2012-04-04 | 浙江大学 | Test platform for long term working performance research model of novel plastic drainage plate |
| CN102607939A (en) * | 2012-03-06 | 2012-07-25 | 浙江大学 | Combined type hydraulic loading device for underground pipeline vibration simulation test |
| CN102607942A (en) * | 2012-04-01 | 2012-07-25 | 中交上海三航科学研究院有限公司 | Waterproof structure of multi-layer mobile loading beam |
| CN102620992A (en) * | 2012-04-01 | 2012-08-01 | 中交上海三航科学研究院有限公司 | Loading system and method for simulating soil pressure in test room |
| CN102628859A (en) * | 2012-04-01 | 2012-08-08 | 中交上海三航科学研究院有限公司 | Loading frame for simulating soil pressure in laboratory |
| CN102680663A (en) * | 2012-06-04 | 2012-09-19 | 中国地质大学（武汉） | Water level automatic control system of landslide physical model test |
| CN102681028A (en) * | 2012-06-04 | 2012-09-19 | 中国地质大学（武汉） | Multi-operating mode frame type portable landslide testing device for geomechanical model |
| CN103197043A (en) * | 2013-03-21 | 2013-07-10 | 山东大学 | Side slope mining model testing device and method under action of surface and underground water |
| CN103884555A (en) * | 2014-03-19 | 2014-06-25 | 河海大学 | Assembling reference testing device of landslide physical model |
| CN105181938A (en) * | 2015-10-09 | 2015-12-23 | 中国矿业大学(北京) | Slope groundwater simulation device |
| CN107386856A (en) * | 2017-06-28 | 2017-11-24 | 山东大学 | Suitable for the full-automatic shutdown stand and application method of model assay systems |
| CN108222082A (en) * | 2018-01-09 | 2018-06-29 | 中南大学 | Foundation pit dynamic precipitation indoor model test method and device under the conditions of multi-aquifer |
| CN109853642A (en) * | 2019-01-25 | 2019-06-07 | 天津大学 | A kind of low disturbance forming hole method for Ng model test |
| CN111426494A (en) * | 2020-03-26 | 2020-07-17 | 山东大学 | Lifting arm rack for model test system and working method |
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2007
- 2007-07-03 CN CNU2007201115169U patent/CN201060186Y/en not_active Expired - Lifetime
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086494B (en) * | 2007-07-03 | 2010-05-26 | 浙江大学 | Foundation and slope engineering model test platform |
| CN102401733A (en) * | 2011-11-01 | 2012-04-04 | 浙江大学 | Test platform for long term working performance research model of novel plastic drainage plate |
| CN102401733B (en) * | 2011-11-01 | 2013-06-05 | 浙江大学 | Test platform for long term working performance research model of novel plastic drainage plate |
| CN102607939A (en) * | 2012-03-06 | 2012-07-25 | 浙江大学 | Combined type hydraulic loading device for underground pipeline vibration simulation test |
| CN102607939B (en) * | 2012-03-06 | 2013-11-27 | 浙江大学 | Combined type hydraulic loading device for underground pipeline vibration simulation test |
| CN102607942A (en) * | 2012-04-01 | 2012-07-25 | 中交上海三航科学研究院有限公司 | Waterproof structure of multi-layer mobile loading beam |
| CN102620992A (en) * | 2012-04-01 | 2012-08-01 | 中交上海三航科学研究院有限公司 | Loading system and method for simulating soil pressure in test room |
| CN102628859A (en) * | 2012-04-01 | 2012-08-08 | 中交上海三航科学研究院有限公司 | Loading frame for simulating soil pressure in laboratory |
| CN102628859B (en) * | 2012-04-01 | 2015-04-29 | 中交上海三航科学研究院有限公司 | Loading frame for simulating soil pressure in laboratory |
| CN102620992B (en) * | 2012-04-01 | 2014-06-18 | 中交上海三航科学研究院有限公司 | Loading system and method for simulating soil pressure in test room |
| CN102680663B (en) * | 2012-06-04 | 2013-11-20 | 中国地质大学（武汉） | Water level automatic control system of landslide physical model test |
| CN102681028A (en) * | 2012-06-04 | 2012-09-19 | 中国地质大学（武汉） | Multi-operating mode frame type portable landslide testing device for geomechanical model |
| CN102680663A (en) * | 2012-06-04 | 2012-09-19 | 中国地质大学（武汉） | Water level automatic control system of landslide physical model test |
| CN103197043A (en) * | 2013-03-21 | 2013-07-10 | 山东大学 | Side slope mining model testing device and method under action of surface and underground water |
| CN103884555A (en) * | 2014-03-19 | 2014-06-25 | 河海大学 | Assembling reference testing device of landslide physical model |
| CN103884555B (en) * | 2014-03-19 | 2016-08-03 | 河海大学 | A kind of landslide physical assembles with reference to assay device |
| CN105181938A (en) * | 2015-10-09 | 2015-12-23 | 中国矿业大学(北京) | Slope groundwater simulation device |
| CN107386856A (en) * | 2017-06-28 | 2017-11-24 | 山东大学 | Suitable for the full-automatic shutdown stand and application method of model assay systems |
| CN107386856B (en) * | 2017-06-28 | 2019-02-05 | 山东大学 | Full-automatic shutdown rack and application method suitable for model assay systems |
| CN108222082A (en) * | 2018-01-09 | 2018-06-29 | 中南大学 | Foundation pit dynamic precipitation indoor model test method and device under the conditions of multi-aquifer |
| CN108222082B (en) * | 2018-01-09 | 2023-06-06 | 中南大学 | Dynamic precipitation indoor model test method and device for foundation pit under condition of multiple aquifers |
| CN109853642A (en) * | 2019-01-25 | 2019-06-07 | 天津大学 | A kind of low disturbance forming hole method for Ng model test |
| CN111426494A (en) * | 2020-03-26 | 2020-07-17 | 山东大学 | Lifting arm rack for model test system and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080514 Effective date of abandoning: 20070703 |