CN2809020Y - Simulation test system for underground engineering - Google Patents
Simulation test system for underground engineering Download PDFInfo
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- CN2809020Y CN2809020Y CN 200520110777 CN200520110777U CN2809020Y CN 2809020 Y CN2809020 Y CN 2809020Y CN 200520110777 CN200520110777 CN 200520110777 CN 200520110777 U CN200520110777 U CN 200520110777U CN 2809020 Y CN2809020 Y CN 2809020Y
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- 238000004088 simulation Methods 0.000 title claims abstract description 142
- 238000012360 testing method Methods 0.000 title claims abstract description 51
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Abstract
A kind of simulation test system for underground construction in city comprises simulation box, charger, loading oil circuit system, groundwater simulation system and data collecting system.Be provided with horizontal load plate in the simulation box, can move horizontally the loading of simulation material level under horizontal charger drives, the Vertical loading device can be to the simulation material Vertical loading.Be provided with the horizontal water inlet pipe of several layers in the simulation box, simulate different water cut layer groundwater table and hydraulic pressure respectively, carry out the influence on groundwater test according to the phreatic actual conditions of underground construction.Sky is of a size of 8 cubic metres in the simulation box, can carry out big guide simulated test.Thereby, native system has can realize fully very three-dimensional hydraulic loaded, big guide simulation, water and soil coupled simulation, remarkable advantage such as more than loading and data acquisition and highly versatile, the function automatically, can realize that the three-dimensional simulation of multiple city underground engineering, tunnel and underground excavation engineering, ground and Foundation Design, special underground construction method, slope project, soil-baffling structure etc. is tested.
Description
Technical field
The utility model relates to a kind of simulation test system for underground construction in city, is specially adapted to underground constructions such as subway engineering, tunnel and underground excavation engineering, Foundation Design, special underground construction method, slope project, soil-baffling structure are carried out simulated test.
Simulation test system for underground construction in city of the present utility model is the national Project 211 building project achievement of China Mining Univ.'s geotechnical engineering " state key subject ".
Background technology
At present, domestic most simulated test table apparatus all is at specific engineering and specialized designs development, can only simulate the underground construction of a certain type, and in other words, present simulation experiment system does not have versatility.Studied pile soil common action under the large deformation condition that abutment produces such as, Hunan University, simulation box is of a size of 1200 * 600 * 1000mm
3Water conservancy institute of Tsing-Hua University is in the research of carrying out aspect the underground chamber test of power station, analogue simulation cavity group construction and excavation process; Changjiang Academy of sciences has carried out the experimental study of mud shield tunnel construction and excavation face stability in the sand base, and wearing yellow engineering tunnel scheme with south water to north center line is research object, and simulation box is welded by the steel plate of thick 60mm, and inner cavity size is 850 * 850 * 1000mm
3The simulation experiment system that these have built up, or analog unit is too little, or stick to very much a certain actual engineering, do not have versatility; And, can't realize very three-dimensional the loading, can not realize simulation simultaneously to influence on groundwater.
The utility model content
City underground engineering analog simulation pilot system under the environment complicated and changeable of inventor development, overcome domestic existing simulation test device unidirectional loading, can't realize the deficiency of groundwater simulation, versatility difference.Simulation test system for underground construction in city of the present utility model is being considered easily under the prerequisite, has adopted big as far as possible very three-dimensional simulation box (2000 * 2030 * 2030mm that loads
3), aspect versatility, very three-dimensional loading and the coupling of consideration water and soil, this pilot system has been filled up domestic blank, has reached leading domestic level.
The purpose of this utility model is to overcome the above-mentioned shortcoming that exists in the prior art with not enough, and a kind of simulation test system for underground construction in city is provided, for the urban underground engineering construction design and construction of complexity provides rationally, test basis accurately.It has especially overcome the following deficiency of the existing simulation test device of China: such as, the device box size is too little, the actual state of Simulation of Complex city underground engineering truly, or experimental rig only sticks to a certain actual engineering, make result of the test not have comparativity, be difficult to the conclusion and the test basis that obtain to be of universal significance.Simulation experiment system of the present utility model can be realized the physical simulation experiment of nearly all city underground engineering aspect, has good versatility; Simultaneously, adopt very three-dimensional analog unit and the hydraulic loaded equipment that loads, overcome the unidirectional loading of traditional experiment table apparatus, the accurate deficiency of the design load operating mode of simulate formation engineering.Simulation experiment system of the present utility model also is with good expansibility, and can increase corresponding chiller plant on this basis and realize more sophisticated functions such as construction freezing method simulation; And, also realized water and soil coupling simulation, can consider the influence of underground water to engineering.Yet these several respects are that present similar physical simulation experiment is not available.In addition, detachable connection is all adopted in the connection between each junction plate of the present utility model and other the most of parts, such as bolt, thereby has satisfied the requirement of easy resettlement easy to assemble.
Simulation test system for underground construction in city of the present utility model comprises simulation box, charger, loading oil circuit system, groundwater simulation system and data collecting system.Wherein, be used to hold the simulation material of simulated test in the simulation box, charger is installed in and is used on the simulation box simulation material is loaded, the loading oil circuit system is used for providing loading required hydraulic power to charger, and data collecting system is used for from the underground engineering structure of simulation box and simulation material collection and Processing Test data.
Simulation box is the main body of whole simulation experiment system, is the container that holds all analog materials of simulated test.It is the airtight steel case of an end face opening, is made of inside and outside two layer box bodies, and its level cross-sectionn is square or rectangle.
Interior layer box body is an end face opening that is formed by steel plate, the cube container of other five sealings, and the continuous seal welding of steel plate is adopted in four sides and bottom surface.In addition, be provided with two adjacent horizontal load plate of antifriction formula that can move horizontally abreast, load so that the analog material in the simulation box is carried out level with two adjacent side wherein.And, be provided with rubber tile in the position, space of two horizontal load plate joints or canvas flexibly connects, to satisfy the needs of load plate freely-movable and retaining soil.
But, consider that the load in when test is big and the load time is long, thus specially the periphery of interior layer box body all level lay the outside transverse channel steels of opening, all be connected between channel-section steel and the channel-section steel by bolt as a whole, thereby the outer layer box body of formation.Above-mentioned transverse channel steels is not connected with interior layer box body.Wherein, the horizontal load plate of antifriction formula in the interior layer box body is used for realizing that the level to analog material loads the counterforce device when four fixing side steel plates and outer layer box body load as level when moving horizontally.
Charger be to level to providing the device of counter-force to oil cylinder with vertical, comprise horizontal charger and Vertical loading device.
On each side of four of layer box body sides, two vertical steel columns are installed respectively outside simulation box, the lower end of every steel column connects with bolt with the steel plate that is connected in being embedded in the simulation table basis.These eight steel columns have farthest improved the rigidity of three-dimensional simulation case.Wherein, with interior layer box body in both sides can move horizontally on four vertical steel columns that the horizontal load plate of antifriction formula installed on the layer box body outside corresponding, be separately installed with many (such as two or more) levels to oil cylinder.Level links to each other with above-mentioned horizontal load plate to the round flange of load cylinder by its tailpiece of the piston rod, and the implementation level loads.Can be that unidirectional level loads, also can be that two-way horizontal loads.Above-mentioned vertical steel column then is used as the counterforce device of simulation box.Like this, promptly constitute horizontal charger.
End face at simulation box, the Vertical loading device of forming an intersecting parallels structure by girder steel crisscrossly, the desired location of well word girder steel be provided with suitable quantity vertically to load cylinder, well word girder steel is connected by bolt with the upper end of above-mentioned vertical steel column, thereby make whole steelframe constitute a three-D space structure, can be the three-dimensional safety powerful guarantee smoothly that loads for oil cylinder provides enough counter-forces.These vertically can realize Vertical loading to the analog material in the simulation box by movably force transmission rack and the Vertical loading plate that is movably connected on its bottom to oil cylinder.
So, whole charger by vertical steel column, well word girder steel, level to forming to load cylinder and level and Vertical loading plate etc. with vertical.
As seen, native system not only can be realized conventional unidirectional or two-way loading, and can realize very three-dimensional completely the loading.
The loading oil circuit system is the load source of whole simulation experiment system, all adopts hydraulic pressure to load automatically, is made up of conduit under fluid pressure and by-pass valve control etc., and is connected to above-mentioned load cylinder and hydraulic power source (pumping plant).Level is to not only can the multi-cylinder interlock loading and can also load by single cylinder to oil cylinder with vertical, this just provides condition for the simulated test of carrying out multiple different underground constructions in pilot system, has embodied the extremely strong versatility of this simulation experiment system simultaneously from another point of view.Oil piping system adopts the automation by-pass valve control to open and close, and only needs just can control all oil cylinders easily by the corresponding button.In addition, all oil cylinders all adopt high-strength bolt to link to each other convenient for maintaining and dismounting with the heavy frame of simulation table.
Data collecting system is to collect and the Processing Test section data, obtains experimental data, figure and regression function by it.The data collecting system that is adopted is resistance-type and two kinds of sensors of type vibration wire and corresponding data acquisition instrument (such as, TDS-303 data collecting instrument), all adopts computer control to gather automatically, has excellent precision and flexibility.High performance data collecting system has guaranteed the reliability of experimental data transmission.
The groundwater simulation system is a big characteristic of this simulation experiment system, is made up of water inlet pipe, valve and horizontal drain pipe and high-pressure hydraulic pump.In simulation box, form inlet pipeline, along box height the horizontal water inlet pipe of several layers (1～6 layer) can be set, can simulate different aquifer groundwater table and hydraulic pressure respectively according to the phreatic actual conditions of underground construction, as the influence of upper strata backwater, artesian water.Every layer of water inlet pipe all has a valve control flow of inlet water and water intake velocity.
In addition, for the purpose of the convenience that helps realizing simulation system, directly perceived and highly versatile, simulation experiment system of the present utility model can also comprise other ingredient, such as peep hole.On the ectonexine casing of the both sides of load cylinder a plurality of peep holes can be set in not installation level, this has not only strengthened the intuitive of simulated test, has also improved the versatility of simulation experiment system to a great extent.Can open different holes as requested, and with the organic glass of the peep hole excavation initial surface as underground chamber.For example, can dig out single tunnel by each peep hole, many peep holes can be simulated the complicated subway engineering in two or many crossing tunnels etc.
Simulation test system for underground construction in city of the present utility model has following outstanding substantive distinguishing features and significant technological progress:
1. can carry out the simulated test of large scale
This pilot system can be carried out big guide simulated test according to the theoretical definite simulation box size of analog simulation, and the interior sky of its simulation box is of a size of 8 cubic metres, is the simulation test system for underground construction in city that present China is maximum sized, take the lead in realizing very three-dimensional loading.
2. easy for operation
This pilot system adopts hydraulic loading device to load, and can realize adding unloading control automatically fully by the hydraulic circuit console, and every group oil cylinder can also can be distinguished single movement as required by synchronization action, has greatly improved the handling of system.
3. observation is directly perceived
The data collecting system of this pilot system is selected international advanced acquisition instrument (TDS-303 data collecting instrument) for use, has realized the multiple spot automation collection fully, and has directly analyzed the output result by computer.
4. test has very strong versatility to city underground engineering
This pilot system can realize the three-dimensional simulation test of multiple city underground engineering, tunnel and underground excavation engineering, ground and Foundation Design, special underground construction method, slope project, soil-baffling structure etc., rather than certain single class city underground engineering.
5. the compliance to city underground engineering test under the environment complicated and changeable is strong
The strong adaptability of this pilot system shows: it has realized fully very three-dimensional hydraulic loaded, but also can carry out the test of influence on groundwater, and the coupling of simulation water and soil is to the influence of underground engineering.This two aspect all is that China existing physical simulation test stand device institute is irrealizable.
6. be with good expansibility
This testing system apparatus is with good expansibility, and can increase corresponding chiller plant on this basis to realize more sophisticated functions of construction freezing method simulation, underground construction special construction method.
Description of drawings
Fig. 1 is the horizontal sectional view of the simulation box of the utility model simulation experiment system;
Fig. 2 is the 1-4 elevation of the utility model simulation experiment system;
Fig. 3 is the A-D elevation of the utility model simulation experiment system;
Fig. 4 is the vertical view of the Vertical loading device of the utility model simulation experiment system, shows the combining structure of each girder steel that constitutes the Vertical loading device;
Fig. 5 is the water supply and draining schematic diagram of the groundwater simulation system of the utility model simulation experiment system.
Among the figure:
1. No. 3 plates of layer box body in No. 2 plates of layer box body 3. in No. 1 plate of interior layer box body 2.
4. No. 4 plates of interior layer box body 5. steel columns 6. transverse channel steels
7. horizontal load plate 8. levels of antifriction formula layer box body in load cylinder 9. is strengthened steel plate
10. gather line and export 11. water inlet pipes, 12. gutters
13. rubber tile or canvas 14. simulation table basis 15. foundation pads
16. simulation box base plate 17. upper junction plates 18. lower connecting plates
19. the bolt hole that peep hole 20. is connected with steel column
21. connecting the steel plate 22. steel columns outside, the basis strengthens gusset
201. Vertical loading girder 202,203,204. Vertical loading limit secondary beams
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the utility model simulation experiment system is carried out further detailed description.
Whole simulation experiment system comprises simulation box, charger, loading oil circuit system, groundwater simulation system and data collecting system.
Fig. 1 is the horizontal sectional view of the simulation box of the utility model simulation experiment system, and Fig. 2 and Fig. 3 are respectively the elevation of two facade 1-4 of simulation experiment system and A-D.
As shown in Figure 1, simulation box is the container that is used to hold all analog materials of simulated test, is the steel case of an end face opening, is made of inside and outside two layer box bodies, and its level cross-sectionn is a square.
Interior layer box body is the cube container of an end face opening, other five sealings, and the continuous seal welding of steel plate is adopted in four sides i.e. 2, No. 3 plates 3 of 1, No. 2 plates of No. 1 plate and No. 4 plates 4 and bottom surface.In addition, inside at interior layer box body, be provided with the adjacent horizontal load plate 7 of two antifriction formulas abreast with above-mentioned wherein two adjacent side steel plates, they can inwardly and outwards move horizontally along the horizontal axis of casing, are used for that the analog material in the simulation box is carried out level and load.And, be provided with similar materials such as rubber tile or canvas 13 in the gap that two horizontal load plate 7 are joined and flexibly connect, to satisfy the needs that load plate moved freely and kept off soil.
Because the object studied of underground construction mostly is discrete materials such as soil greatly, and this simulation experiment system also will consider phreatic influence, thus must seal around the casing of simulation box, so simulation box is made in the continuous welding of selection steel plate.
But, consider that load in the test big and action time can be very long, if utilize steel plate to improve casing rigidity merely and reduce distortion, then steel plate needs very thickly, this both uneconomical also being not easy to is installed.So, as illustrated in fig. 1 and 2, the utility model level around the outside of interior layer box body is equipped with the outside transverse channel steels of opening 6, no matter be in above-below direction or horizontal direction, all connect (connecting) between the adjacent channel-section steel 6, thereby form an integral body and constitute outer layer box body such as the angle steel that utilizes two-sided punching by bolt.Transverse channel steels 6 is not connected with interior layer box body.
The counterforce device of outer layer box body when loading plays the effect of container simultaneously.
As seen, simulation box utilizes transverse channel steels both to increase rigidity, has reduced distortion, makes simulation box have good force-bearing situation, is easy to installing/dismounting again, is maintenance or the resettlement condition of providing convenience, and can satisfies airtight requirement.
Preferably, can select above-mentioned 1,2,3, No. 4 plate of the thick steel plate of 10～30mm as simulation box, transverse channel steels can be selected channel-section steel more than No. 18.
Charger of the present utility model comprises horizontal charger and Vertical loading device.
As illustrated in fig. 1 and 2, on four of layer box body sides, each side all is equipped with two vertical steel columns 5 outside simulation box, and the lower end of every steel column 5 connects with steel plate (about 10～30mm is thick) the 21 usefulness bolts that are connected in being embedded in simulation table basis 14.At the opening of above-mentioned transverse channel steels 6 position facing to steel column 5, the some connection steel plates of soldering and sealing realize that channel-section steel 6 is connected with the bolt of steel column 5.These eight steel columns have farthest improved the rigidity of three-dimensional simulation case.Wherein, with layer box body outside the horizontal load plate of above-mentioned antifriction formula 7 is corresponding on four vertical steel columns 5 being installed, be separately installed with two (or more than two) levels to load cylinder 8, oil cylinder 8 passes between the web of a pair of channel-section steel of forming steel column 5.Level links to each other with the horizontal load plate 7 of above-mentioned antifriction formula to the round flange of oil cylinder 8 by its tailpiece of the piston rod, and the implementation level loads.Every horizontal load plate can connect 2～8 load cylinders 8, but both also single movement of linkage of oil cylinder.It can be that horizontal single-headed (be the X axis of XYZ coordinate system or Y-axis to) loads or horizontal bidirectional (be the X axis of XYZ coordinate system and Y-axis to) loads that level loads.Above-mentioned vertical steel column 5 is as the counterforce device of simulation box.Like this, promptly constituted horizontal charger.In addition, also be welded with the reinforcement gusset 22 of certain thickness and width on the outside of steel column 5 is elongated equally spacedly, with the globality of strengthening steel column and reduce welding deformation, it is inboard to be connected to integral body with bolt and transverse channel steels, girder steel.
As shown in Figure 2, at the end face of simulation box described Vertical loading device is installed.
As shown in Figure 4, the Vertical loading device comprises an intersecting parallels loading frame that is made of girder steel crisscrossly.Loading frame (i.e. " well word girder steel ") is made up of two elongated steel channel beams (being the Vertical loading girder) 201 and the short steel channel beam of the six roots of sensation (being Vertical loading limit secondary beam) 202,203,204, the length girder steel interconnects with bolt, and every girder steel outwards combines by two back-to-back openings of channel-section steel.And, shown in Fig. 2 and 3, upper junction plate 17 and lower connecting plate 18 (also claiming " anistree plate ", totally eight) all are installed, in four cross junctions of length girder steel to strengthen the rigidity of loading frame.
In addition, form between the web of every pair of channel-section steel of girder steel and keep a determining deviation, vertically can therefrom pass guaranteeing to load cylinder.
In the above-mentioned spacing of the desired location of well word girder steel, be equipped with suitable quantity vertically to the oil cylinder (not shown).Well word girder steel is connected (see figure 4) with the upper end of above-mentioned vertical steel column 5 by bolt, thereby makes whole steelframe constitute a three-D space structure, for load cylinder provides enough counter-forces.These vertically can realize Vertical loading to the analog material in the simulation box by movably force transmission rack and the Vertical loading plate (not shown) that is movably connected on its bottom to oil cylinder.
4～16 Vertical loading oil cylinders can be set, and the nominal load of every oil cylinder is 0～25T, rationally selects for use according to different load situation during test.
Be welded on the length of junction plate that is used to connect well word girder steel of steel column upper end by increase, perhaps the up-down adjustment girder steel can be realized the adjusting of well word girder steel at steel column upper end differing heights in the installation site of steel column upper end.Such as, on the above-mentioned junction plate of steel column upper end, the plurality of rows bolt hole is set, look the test needs, can adjust the setting height(from bottom) of well word girder steel.
As seen, whole charger is made up of to load cylinder and level and Vertical loading plate etc. with vertical to load cylinder 8 vertical steel column 5, well word girder steel, level.
Describe as can be known from top structure, the each several part type of attachment of this simulation experiment system at first will satisfy requirement of strength, its less important consideration is easy to dismounting and maintenance, adopt dismountable bolt to connect so the connection in the pilot system, must be welded with junction plate earlier and then use bolted method again with also all adopting of welding, all adopt this type of attachment with being connected of steel column comprising connection and transverse channel steels between being connected of being connected of steel column and ground, steel column and girder steel, transverse channel steels.Steel column 5 is with analog basis 14, steel column 5 and all adopt elder generation that channel-section steel is welded on the connection steel plate being connected of girder steel, couples together connecting steel plate by bolt then.What adopt being connected of girder steel and steel column is the thick connection steel plate of 10～20mm.Because Bolt Connection helps strengthening the flexibility and the versatility of system.
Loading oil circuit of the present utility model system all adopts hydraulic pressure to load automatically, is made up of conduit under fluid pressure and by-pass valve control etc., and is connected to above-mentioned load cylinder and hydraulic power source (pumping plant), and load cylinder can the multi-cylinder interlock be loaded also and can load by single cylinder.Oil piping system adopts the automation by-pass valve control to open and close, and the control oil cylinder is convenient.All oil cylinders all adopt high-strength bolt to link to each other convenient for maintaining and dismounting with the heavy frame of simulation table.In addition, consider that the length of side of simulation box is bigger, soil body simulation material is under three-dimensional load condition, though different according to different soil properties, all directions decrement should be all in certain scope, so selected suitable oil cylinder stroke.Level directly is respectively φ 60～100mm, φ 30～70mm to oil cylinder with vertical cylinder diameter to oil cylinder, bar, and cylinder body is elongated to be 350～700mm.
Underground water is a very important aspect to the influence of actual engineering, and great majority are all inseparable with the influence of water in the accident of underground construction, but owing in simulated test, be difficult to control it, so this respect rarely has research at present.This simulation experiment system has also designed groundwater simulation system (referring to Fig. 5), influence that can simulated groundwater.
As shown in Figure 5, groundwater simulation of the present utility model system is made up of water inlet pipe 11, valve and horizontal drain pipe 12 (see figure 1)s and high-pressure hydraulic pump.The simulation box of sealing provides necessary condition for realizing the coupling of simulation water and soil.In simulation box, lay inlet pipeline, can be provided with such as 1～6 layer of horizontal water inlet pipe, the water source of water and soil coupling is provided along the differing heights of casing.Outside simulation box, an independent valve all is housed in order to control flow of inlet water and water intake velocity for every layer of water inlet pipe.During test, can come the switch respective valves, make that the influence of water approaches actual conditions in the simulated test according to phreatic different water levels, impervious layer position.Can simulate different aquifer groundwater table and hydraulic pressure respectively according to the phreatic actual conditions of underground construction, as the influence of upper strata backwater, artesian water.In addition, can pass through control of pump pressure and flow and then control inflow and water yield, and monitor the degree of saturation of simulation material in the case by sensor.
Fig. 3 shows the setting of multi-functional peep hole.Referring to Fig. 3 and Fig. 1, on the ectonexine casing of the both sides of load cylinder 8, some peep holes 19 can be set in not installation level.This has not only strengthened the intuitive of analog reslt, has also improved the versatility of simulation experiment system to a great extent.Because, the sealing of peep hole external application poly (methyl methacrylate) plate, the distortion situation that can observe casing middle part simulation material during test.By the poly (methyl methacrylate) plate on the peep hole that changes the outfit, can provide the initiating terminal of cavern excavation in the tunnels mimic.For example, can dig out (vertically) crossing hole and the simulate formation tunnel by peep hole.For another example, the simulation that two peep holes are convenient to realize subway twin tunnel complex cross point engineering is set.
The shape of peep hole can be set according to the section configuration of underground construction, and as circle, rectangle etc., size can be determined according to the likelihood ratio.
Because the organic glass place of peep hole does not have transverse channel steels, can adopt angle iron frame to improve the rigidity of this part, the vertical leg of angle of framework just in time withstands on the web of steel column.
The use of brief description the utility model simulation test system for underground construction in city.
At first, in the simulation box of the soil body (or other simulation materials) pilot system of packing into sampling, and preprepared underground engineering structure (as the pile body of pile foundation test, the section of jurisdiction of subway tunnel etc.) and other sensor devices imbedded in the soil body.Required various leads one end of test is imbedded the soil body link to each other with instruments such as foil gauge and other sensor devices, the data acquisition instrument of an end and pilot system links to each other.After having buried various instruments underground, underground engineering structures (as the test pile body) is carried out precompressed.After precompressed finishes, the then underground engineering structure load-bearing that pressurizes, and utilize acquisition instrument that experimental data is carried out record, and the experimental phenomena, the data that obtain are analyzed, obtain the test basis of design, construction and the monitoring of city underground engineering under the environment complicated and changeable, instruct the design and the engineering construction of complicated underground construction.
Claims (10)
1. a simulation test system for underground construction comprises simulation box, charger, loading oil circuit system and data collecting system, it is characterized in that:
Simulation box is the sealing steel case of an end face opening, can hold the simulation material of simulated test in the case;
Charger comprises horizontal charger and Vertical loading device, is installed in respectively on the side and end face of simulation box casing;
The loading oil circuit system comprises conduit under fluid pressure, valve and hydraulic power source, and is connected to charger to provide loading required hydraulic power to charger;
Data collecting system comprises sensor and corresponding data acquisition instrument, and the simulation material acquisition test data in the simulation box are also handled;
Be provided with the horizontal load plate (7) that moves horizontally that is connected with horizontal charger in the described simulation box, but horizontal load plate horizontal single-headed or two-way moving under the driving of horizontal charger are carried out level to simulation material and are loaded;
Described Vertical loading device is provided with the Vertical loading plate, can carry out Vertical loading to simulation material.
2. simulation experiment system according to claim 1, it is characterized in that: also comprise the groundwater simulation system, it has water inlet pipe (11), gutter (12) and high-pressure hydraulic pump, along box height the horizontal water inlet pipe of several layers is set in simulation box, and every layer of water inlet pipe all is provided with a valve.
3. simulation experiment system according to claim 1 and 2 is characterized in that: described simulation box is made of inside and outside two layer box bodies, wherein,
Interior layer box body is a cube container, and four sides and bottom surface are by the continuous seal welding of steel plate; Described horizontal load plate (7) is adjacent two, and layer box body was interior and parallel with two adjacent side in they were arranged on, and was provided with rubber tile or canvas (13) in two horizontal load plate (7) joints;
Around the outside of layer box body, the outside transverse channel steels (6) of opening of being laid by level removably connected and composed integral body mutually in outer layer box body was arranged on.
4. simulation experiment system according to claim 3, it is characterized in that: described horizontal charger comprises: two vertical steel columns (5) are installed on each side of layer box body outside described, and wherein many levels being installed to load cylinder (8) on four vertical steel columns with described horizontal load plate (7) is corresponding, described level is connected with horizontal load plate (7) to the flange of load cylinder by its tailpiece of the piston rod.
5. according to claim 1,2 or 4 described simulation experiment systems, it is characterized in that: described Vertical loading device is crisscross by girder steel and a well word girder steel that constitute, the desired location of well word girder steel is provided with vertically to load cylinder, vertically be provided with movably force transmission rack and above-mentioned Vertical loading plate to the bottom of load cylinder, well word girder steel removably connects with the upper end of above-mentioned vertical steel column.
6. simulation experiment system according to claim 5 is characterized in that: but described level to loading also to load cylinder both multi-cylinder interlock with vertical that but the single cylinder action loads.
7. simulation experiment system according to claim 5 is characterized in that: every vertical steel column (5) and well word girder steel combine by two outside channel-section steels of opening, keep a determining deviation between every pair of channel-section steel web, and load cylinder passes from spacing.
8. simulation experiment system according to claim 5, it is characterized in that: described well word girder steel is interconnected with bolt by two elongated steel channel beams (201) and the short steel channel beam of the six roots of sensation (202,203,204), and upper junction plate (17) and lower connecting plate (18) all are installed in each junction of length beam.
9. simulation experiment system according to claim 5 is characterized in that: described well word girder steel can be regulated in the setting height(from bottom) of vertical steel column (5) upper end.
10. simulation experiment system according to claim 1 and 2 is characterized in that: also be provided with peep hole (19) on the side of simulation box, can be used as the excavation initial surface of simulate formation cavern.
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