CN103454103B - Loading device for geotechnical engineering large-sized three-dimensional comprehensive simulation test bed - Google Patents
Loading device for geotechnical engineering large-sized three-dimensional comprehensive simulation test bed Download PDFInfo
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- CN103454103B CN103454103B CN201310290041.4A CN201310290041A CN103454103B CN 103454103 B CN103454103 B CN 103454103B CN 201310290041 A CN201310290041 A CN 201310290041A CN 103454103 B CN103454103 B CN 103454103B
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Abstract
Provided is a loading device for a geotechnical engineering large-sized three-dimensional comprehensive simulation test bed. The loading device for the geotechnical engineering large-sized three-dimensional comprehensive simulation test bed comprises reaction walls and reaction beams, wherein the reaction walls are made of reinforced concrete, and are of a double-layer structure, a personnel operation channel is arranged between the double-layer reaction walls, a control pipeline penetrates into the position between the double-layer reaction walls through reserved horizontal installing holes formed in the reaction walls, and is connected to a control room of a ground test building, and the reaction beams stretch across the geotechnical engineering large-sized three-dimensional comprehensive simulation test bed, are arranged on the upper end faces of the reaction walls, and are fixedly connected with the reaction walls. The loading device for the geotechnical engineering large-sized three-dimensional comprehensive simulation test bed can achieve real three-dimensional loading, and can be used for simulation of geotechnical tests with different functions, such as an underground space and an excavation simulation test of the underground space, a foundation and slope engineering simulation test under the conditions of rain and rise and fall of the underground water level, a dynamic response test of a pile foundation and soil around a pile, a duct piece simulation test and a structural component performance test.
Description
Technical field
The present invention relates to a kind of physical model test device that can be used for the Geotechnical Engineering such as tunnel and subway station, foundation works, slope project, soil-baffling structure, especially can carry out a test platform for stereo synthesis simulation test to large-scale geologic model, particularly relate to a kind of charger for Geotechnical Engineering large stereo comprehensive simulation test platform.
Background technology
Physical experiments studies the important means of large-scale geotechnical engineering problems, is at home and abroad widely used, and plays an important role in engineering research and design.The engineering problems such as Chinese scholars is stablized for large-scale mine roof rock, the Rock Slide Stability of dam and the dam foundation, huge underground cavity adjoining rock stability and supporting have carried out fruitful research work, and the supporting model test equipment that the scale that have developed does not wait.
The existing various test unit for physical experiments is all specialized designs developments for specific engineering often, can only simulate the underground works of a certain type, not possess versatility.And for Geotechnical Engineering model experiment, the geometric similarity of empirical model is than being a crucial technical indicator.Geometric similarity ratio obtains too small, though can experiment material be saved, but the layout of too small model scale of construction meeting limiting sensor, compared with larger model, be more easily subject to the interference of extraneous factor, thus affect experimental result.Therefore, when conditions permit, should adopt larger model geometric ratio of similitude, in this case, the complicacy of model experiment itself also increases accordingly as far as possible.The analog material large usage quantity that such as large-scale model experiment needs; When simulating great burying complex working condition, need large-tonnage loading system and the larger counter force system etc. of rigidity.Along with the scale of Geotechnical Engineering is increasing, the engineering problem of appearance is more complicated, and existing model test equipment can not meet the needs of engineering practice well.
In following explanation of the present invention, so-called stereo synthesis simulation test, refer to and can implement true triaxial and load, the physical experiments of the difference in functionality such as bridge response to forced vibration, section of jurisdiction simulation test, structure member performance test of ground and slope project simulation test, pile foundation and soil around pile under the underground space and Excavation simulation test thereof, rainfall and Decline or rise of groundwater level condition can be carried out.Model full-size can reach 10m × 6m × 6m (long × wide × high), and relative to the model test scale of prior art, much bigger in size, therefore the relatively aforementioned prior art of testing table of the present invention belongs to a kind of large-scale test platform.
Chinese patent CN202033951U provides a kind of Geotechnical Engineering physical simulation experiment machine, it adopts and is positioned over steel frame construction on the ground, can be used for carrying out geomechanical model test to cavern, hole group's side slope, but can only load the four direction up and down of model, true triaxial loading can not be carried out to model.And testing machine is placed on the ground, and scale is less, can not in order to carry out large-scale physical experiments.
Chinese patent CN100535267C provides a kind of ground and slope engineering model test platform, the model casing of the test platform of this patent disclosure is the steel construction being placed in all round closure on the ground, although can large-sized model test be carried out, but can only load model top, the physical experiments of the such as excavation project such as tunnel and subway station can not be used for simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of charger for Geotechnical Engineering large stereo comprehensive simulation test platform, to reduce or to avoid problem noted earlier.
Specifically, the invention provides a kind of charger for Geotechnical Engineering large stereo comprehensive simulation test platform, described Geotechnical Engineering large stereo comprehensive simulation test platform at least comprises charger and model casing, and described charger comprises the reaction beam providing the counter force wall of horizontal loading forces He provide vertical loading power;
Described counter force wall is made up of reinforced concrete, and is compassingly set at four peripheries of the foundation ditch excavated by ground; Described counter force wall is double-decker, stull and human users's passage is provided with between double-deck counter force wall, the control pipeline of described horizontal addload oil cylinder is penetrated between double-deck counter force wall by horizontal mounting hole reserved on described counter force wall, and is connected in the pulpit of described ground experiment building;
Described reaction beam is arranged at the upper surface of described counter force wall across described Geotechnical Engineering large stereo comprehensive simulation test platform, and is fixedly connected with the steelwork component of the inside concrete being cast in described counter force wall;
The surrounding of described model casing and top are spliced by polylith load plate, and bottom and the described foundation ditch of model casing share bottom reinforcement bars mattess; Described inner side counter force wall is evenly arranged multiple reserved horizontal mounting hole; Each horizontal addload plate is connected with a horizontal addload oil cylinder by spherical joint, and described horizontal addload oil cylinder is fixedly connected with described counter force wall by the coupling bolt be arranged in described horizontal mounting hole; Each vertical loading plate is connected with a vertical loading oil cylinder by spherical joint, and each described vertical loading oil cylinder is fixedly connected with described reaction beam by coupling bolt;
Prepared screw-bolt hole between the side of adjacent described horizontal addload plate, visual test needs to carry out bolt connection.
Preferably, described horizontal addload plate has a panel contacted with model, described panel periphery has the side plate perpendicular to described panel, described panel and described side plate are by strengthening link of boards, described reinforcement gusset has two diagonal angle gussets, in the middle of two gussets and be parallel to that described side plate arranges around gusset, the middle part of described reinforcement gusset is provided with a web joint.
The present invention proposes a kind of charger for Geotechnical Engineering large stereo comprehensive simulation test platform, can be used for the physical experiments of the difference in functionality such as bridge response to forced vibration, section of jurisdiction simulation test, structure member performance test of ground and slope project simulation test, pile foundation and soil around pile under the underground space and Excavation simulation test thereof, rainfall and Decline or rise of groundwater level condition, meanwhile, apply described charger and can realize very three-dimensional loading to large scale physical model.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein,
Fig. 1 display be the perspective view of a kind of Geotechnical Engineering large stereo comprehensive simulation test platform according to a specific embodiment of the present invention;
Fig. 2 display be the horizontal cross-sectional schematic of Fig. 1;
Fig. 3 display be longitudinal cross-sectional schematic of Fig. 1;
Fig. 4 display be the schematic top plan view of model casing according to a specific embodiment of the present invention;
Fig. 5 display be the enlarged diagram at B place in position in Fig. 4;
Fig. 6 display be the structure for amplifying decomposing schematic representation of horizontal addload plate and connected horizontal addload oil cylinder;
Fig. 7 display be the perspective view of horizontal addload plate.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.Wherein, identical parts adopt identical label.
Fig. 1 display be the perspective view of a kind of Geotechnical Engineering large stereo comprehensive simulation test platform that a concrete case study on implementation according to the present invention proposes, in figure, rough display is the general configuration of Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention, has focused on display the key distinction of the prior art that it is mentioned with relative background technology part.
See Fig. 1, a remarkable difference of Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention and prior art is, the main part of Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention is arranged in a foundation ditch 1 of ground excavation (see Fig. 2,3), wherein, the part represented by Reference numeral 11 of Fig. 1 is ground, and the part represented by Reference numeral 12 is the bottom of foundation ditch 1.Fig. 2 display be the horizontal cross-sectional schematic of Fig. 1, Fig. 3 display be longitudinal cross-sectional schematic of Fig. 1, certainly, be similar to Fig. 1, what Fig. 2, Fig. 3 adopted is the simple technique of painting, only for those skilled in the art's reading comprehension.
As Figure 1-3, Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention comprises the under ground portion being arranged in foundation ditch 1 and the aerial part arranged around foundation ditch 1 generally, wherein, under ground portion is the agent structure of test platform, (model casing 3 does not show in fig. 1-3 at least to comprise charger 2 and model casing 3, see Fig. 4), wherein charger 2 comprises the counter force wall 21 providing horizontal loading forces and the reaction beam 22 providing vertical loading power.That is, Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention at least comprises provides the counter force wall 21 of horizontal loading forces, provide the reaction beam 22 of vertical loading power and model casing 3.
Wherein, counter force wall 21 is made up of reinforced concrete, and is compassingly set at four peripheries of the foundation ditch 1 excavated by ground; On the ground 11 of foundation ditch 1, be provided with ground experiment building 13 (show a part in Fig. 1, concrete structure is see Fig. 2,3), the top of ground experiment building 13 has the moveable crane 14 across foundation ditch 1; The side of foundation ditch 1 has the mass transport elevator 15 that is communicated with ground 11; The counter force wall 21 of the side corresponding with mass transport elevator 15 is provided with a pilot passageway 16, pilot passageway 16 is communicated with mass transport elevator 15.
The reaction beam 22 shown in Fig. 1 has two, is arranged at the upper surface of counter force wall 21, and is fixedly connected with the steelwork component (not shown) of the inside concrete being cast in counter force wall 21.Model casing 3 be arranged at counter force wall 21 and reaction beam 22 around space in.
Reaction beam 22 is for loading model top, illustrate only two reaction beams 22 in Fig. 1, a reaction beam 22 is illustrate only in Fig. 3, Fig. 1-Fig. 3 is only signal, in actual use, and the top pressure born can be needed to arrange multiple reaction beam 22 according to the size of model casing 3, reaction beam 22 two ends are connected with counter force wall 21 top by bolt.
Therefore, Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention is from the significantly different of prior art, the test portion of Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention, namely charger 2 is mainly arranged at underground, and existing test platform is all be arranged on the ground.The present invention will mainly exert a force and stressed parts, mainly counter force wall 21 and attached reinforced concrete vibrational power flow thereof are in the foundation ditch 1 of underground, and lean against the periphery of foundation ditch 1, when making to test, force and stressed parts are firmly embedded in underground, can guarantee that counter force wall 21 possesses enough large strength and stiffness.In addition, owing to being four peripheries counter force wall 21 being compassingly set at the foundation ditch 1 excavated by ground, itself is around connecting into an entirety, when four limits by counter force wall 21 apply acting force to model casing simultaneously, the counter-force that relative counter force wall 21 bears can be cancelled out each other, and forms self equilibrium systems.And because counter force wall 21 and attached reinforced concrete structure thereof lean against four limits of foundation ditch 1, test platform surrounding soil can apply certain counter-force to counter force wall, will effectively reduce the distortion of counter force wall, and significantly improves the resistance to capsizing of test platform.
On the other hand, counter force wall 21 is arranged in subterranean excavation 1, has saved aboveground space, is convenient in process of the test simultaneously, and testing crew provides test to assist and viewing test process from ground.
Another distinguishing feature of Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention is the maximization of its physical dimension, maximum norm molded dimension in the present invention can reach 10m × 6m × 6m (long × wide × high), relative to the model test scale of prior art, relatively much bigger in size, conveniently carry out the model test of various different engineering, different operating mode.In order to solve the problem of maximization, the present invention not only by main experimental vibrational power flow in underground, also carried out further structure accordingly to improve, such as, provided the charger of large rigidity by the counter force wall 21 of double-layer prestressed reinforced concrete structure, thus large-tonnage loading system can be provided.
In addition, for large-scale experiment, the conveying of cast material can become especially difficulty.Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention is owing to being arranged in fixed buildings, can not as existing open type steel frame construction, adopt the movable equipment of crane and so on to lift by crane and convey materials when needing loaded material, therefore, Geotechnical Engineering large stereo comprehensive simulation test platform of the present invention is provided with the moveable crane 14 across foundation ditch 1 at the top of the ground experiment building 13 around foundation ditch 1, for passing through suspension hook or grab bucket convey materials.In addition, pass in and out foundation ditch 1 for the ease of personnel and arrange and installation test equipment, be also provided with mass transport elevator 15 in the side of foundation ditch 1, for being carried personnel or small-sized testing equipment and cast material by elevator 15.Further, because large-scale experiment needs to carry a large amount of cast materials, in a specific embodiment, the travelling belt 17 can carrying cast material in described model casing is also provided with on the top of foundation ditch 1.Obviously, the setting of these structures is all the improvement proposed to meet full-scale model test, in prior art, for the open type test platform being positioned at ground, carry elevator 15, travelling belt 17 without the need to spent material, be arranged at the structures such as the crane 14 at the top of ground experiment building 13.
In order to provide the structures such as the horizontal addload actuator of horizontal loading forces shown in installation diagram 4, each described counter force wall 21 of four peripheries of described foundation ditch 1 is evenly distributed with multiple horizontal addload hole 23 in a side walls of described foundation ditch 1 inside; From Fig. 2,3, horizontal addload hole 23 some be through hole, some is blind hole, and the distribution of through hole and blind hole needs according to test and designs in advance.It will be appreciated by those skilled in the art that it can also be used for the pipelines such as cloth payout, water pipe, sensor wire, pipeline road when horizontal addload hole 23 is through holes.
As shown in Figure 4, its display be the schematic top plan view of model casing 3 according to a concrete case study on implementation of the present invention, wherein, model casing 3 can be spliced into four peripheries of described model casing 3 by polylith horizontal addload plate 31, same, be similar to the vertical view of the model casing 3 shown in Fig. 4, polylith vertical loading plate is spliced into the top of described model casing, and the bottom of model casing 3 and described Geotechnical Engineering large stereo comprehensive simulation test platform share bottom reinforcement bars mattess.
Each described horizontal addload plate 31 is connected with a horizontal addload actuator 32, and described horizontal addload actuator 32 is fixedly connected with described counter force wall 21 by the coupling bolt be arranged in described horizontal addload hole 23; Same, be similar to the vertical view of the model casing 3 shown in Fig. 4, each described vertical loading plate is connected with a vertical loading actuator, and each described vertical loading actuator is fixedly connected with described reaction beam 22 by coupling bolt.Horizontal addload plate 31 can see the view amplifying display in Fig. 6 by the structure that spherical joint is connected with horizontal addload fuel tank 32.
About the structure of model casing 3, the maximum difference of itself and prior art is, model casing 3 is spliced by polylith horizontal addload plate 31 and vertical loading plate, and arranging like this is the needs of model test in order to meet different scales, Different Loading Method.Such as, for the model of different size, need the load plate that different size is provided, adopt load plate splicing construction of the present invention can splice the load plate combination of different size easily, solve the requirement of the model test of different size.
Because model casing 3 is spliced by polylith load plate, therefore, before analogue formation, only at three of model casing 3, horizontal addload plate 31 can be installed, can not install near pilot passageway 16 side load plate, then travelling belt 17 is arranged on pilot passageway 16 place, such cast material just can be transported to underground by elevator 15, then model casing 3 space is directly transported via travelling belt 17, soil layer is according to design layered arrangement, the load plate by pilot passageway 16 side is installed in layering, the allocation and transportation of upper strata cast material can adopt installs grab claw and carries out on crane, until whole examination is body formed.
On the other hand, the present invention adopts the structure of splicing load plate, each load plate both provides independently load cylinder, coordinate each load plate can provide the Mechanical loading model of any combination, the prior art CN100535267C that this point and background technology are mentioned and CN202033951U is somewhat similar, although but these prior aries provide multiple load cylinder, load plate is but one-piece construction, cannot realize loading flexibly for the difference of each model test.
In addition, in a preferred case study on implementation, described counter force wall 21 is double-decker, between double-deck counter force wall 21, there is stull and human users's passage 211, the control pipeline of described horizontal addload actuator is penetrated between double-deck counter force wall 21 by horizontal addload hole 23 reserved on described counter force wall 21, and is connected in the pulpit of described ground experiment building 13.Such setting is the requirement in order to adapt to full-scale model test, provides the counter force wall 21 of more large rigidity on the one hand, can provide personnel channel's Installation and Debugging equipment on the other hand.
Fig. 5 display be the enlarged diagram at B place in position in Fig. 4; In a preferred embodiment, the side of adjacent horizontal addload plate 31 all studs with sealing joint strip 311, is namely milled with seal groove at the periphery of horizontal addload plate 31, is then bumped into sealing joint strip 311.Sealing between the splicing load plate that can ensure model casing 3 like this, similar, also can stud with sealing joint strip between the side of adjacent described vertical loading plate.In addition, as can be seen from Fig. 5, be provided with bolt hole between the side of adjacent described horizontal addload plate 31, the structure in same similar Fig. 6, between the side of adjacent described vertical loading plate, also can be provided with bolt hole.Such setting be in order to test need time by the side of adjacent described horizontal addload plate between be bolted, ensure that each horizontal addload plate 31 is in vertical state and is neatly arranged side by side, make each horizontal addload plate synchronously can load movement.
Fig. 6 display be the structure for amplifying decomposing schematic representation of horizontal addload plate 31 and connected horizontal addload oil cylinder 32, it will be appreciated by those skilled in the art that in fact dependency structure is equally applicable to the structure of vertical loading plate and vertical loading oil cylinder.
Specifically, each horizontal addload plate 31 is connected with a horizontal addload oil cylinder 32 by spherical joint 34, and described horizontal addload oil cylinder 32 is fixedly connected with described counter force wall 21 by the coupling bolt be arranged in described horizontal mounting hole 23.Utilize spherical joint 34 can regulate level, the upright position of each load plate before loading, ensure that each horizontal addload plate 31 is in vertical state and is neatly arranged side by side, make each horizontal addload plate synchronously can load movement.
Fig. 7 display be the perspective view of horizontal addload plate, wherein eliminate the structures such as the connecting groove of sealing joint strip 311, dependency structure can see Fig. 5, described horizontal addload plate 31 has a panel contacted with model 312, described panel 312 periphery has the side plate 313 perpendicular to described panel, described panel 312 is connected by strengthening gusset 314 with described side plate 313, described reinforcement gusset 314 has two diagonal angle gussets 3141, in the middle of two gussets 3142 and be parallel to that described side plate arranges around gusset 3143, the middle part of described reinforcement gusset 314 has a web joint 315.
As shown in Figure 6, horizontal addload plate 31 is connected by spherical joint 34 with horizontal addload oil cylinder 32, wherein, described web joint 315 is connected with a spherical joint Connection Block 3151, described spherical joint Connection Block 3151 is relative with described spherical joint base 344, and described spherical joint 34 is clamped in therebetween, one end of described fixture 341 is fixedly connected with described spherical joint Connection Block 3151 by bolt, and the other end is fixedly connected with described spherical joint base 344 by bolt.
Be similar to the structure of Fig. 7, vertical loading plate also can have above-mentioned similar 26S Proteasome Structure and Function, does not repeat them here.
The present invention proposes a kind of charger for Geotechnical Engineering large stereo comprehensive simulation test platform, it can be used for the soil test simulation of the difference in functionality such as bridge response to forced vibration, section of jurisdiction simulation test, structure member performance test of ground and slope project simulation test, pile foundation and soil around pile under the underground space and Excavation simulation test thereof, rainfall and Decline or rise of groundwater level condition, simultaneously, very three-dimensional loading can be realized, can large scale physical experiments be carried out.
Although it will be appreciated by those skilled in the art that the present invention is described according to the mode of multiple embodiment, not each embodiment only comprises an independently technical scheme.So describe in instructions be only used to clear for the purpose of; instructions should integrally be understood by those skilled in the art, and regards technical scheme involved in each embodiment as the mode that mutually can be combined into different embodiment to understand protection scope of the present invention.
The foregoing is only the schematic embodiment of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present invention and principle, amendment and combination, all should belong to the scope of protection of the invention.
Claims (2)
1. the charger for Geotechnical Engineering large stereo comprehensive simulation test platform, described Geotechnical Engineering large stereo comprehensive simulation test platform at least comprises charger and model casing, described charger comprises the reaction beam providing the counter force wall of horizontal loading forces He provide vertical loading power, it is characterized in that:
Described counter force wall is made up of reinforced concrete, and is compassingly set at four peripheries of the foundation ditch excavated by ground; Described counter force wall is double-decker, human users's passage is provided with between double-deck counter force wall, the control pipeline of described horizontal addload oil cylinder is penetrated between double-deck counter force wall by horizontal mounting hole reserved on described counter force wall, and is connected in the pulpit of described ground experiment building;
Described reaction beam is arranged at the upper surface of described counter force wall across described Geotechnical Engineering large stereo comprehensive simulation test platform, and is fixedly connected with the steelwork component of the inside concrete being cast in described counter force wall;
Described model casing is spliced into four peripheries of described model casing by polylith horizontal addload plate, and polylith vertical loading plate is spliced into the top of described model casing, and bottom and the described foundation ditch of model casing share bottom reinforcement bars mattess; Each described counter force wall equally distributed multiple reserved horizontal mounting hole in a side walls of described foundation ditch inside of four peripheries of described foundation ditch; Each described horizontal addload plate is connected with a horizontal addload oil cylinder by spherical joint, and described horizontal addload oil cylinder is fixedly connected with described counter force wall by the coupling bolt be arranged in described horizontal mounting hole; Each described vertical loading plate is connected with a vertical loading oil cylinder by spherical joint, and each described vertical loading oil cylinder is fixedly connected with described reaction beam by coupling bolt;
All be bolted between the side of adjacent described horizontal addload plate.
2. charger according to claim 1, it is characterized in that, described horizontal addload plate has a panel contacted with model, described panel periphery has the side plate perpendicular to described panel, described panel and described side plate are by strengthening link of boards, described reinforcement gusset has two diagonal angle gussets, in the middle of two gussets and be parallel to that described side plate arranges around gusset, the middle part of described reinforcement gusset is provided with a web joint.
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| CN103884831B (en) * | 2014-04-04 | 2015-11-11 | 云南省交通规划设计研究院 | A kind of roadbed side slope and underground works multifunction three-dimensional model test platform |
| CN104807974B (en) * | 2015-05-08 | 2016-03-02 | 西安科技大学 | A kind of analog material seam mining simulator stand and test method |
| CN106940233B (en) * | 2017-04-01 | 2023-03-17 | 合肥工业大学 | Underground structure waterproof test comprehensive test platform and test method thereof |
| CN109540688B (en) * | 2019-01-10 | 2023-10-24 | 辽宁工程技术大学 | Large-size true triaxial hydraulic fracturing simulation test device and test method |
| CN110284530B (en) * | 2019-05-17 | 2020-06-26 | 同济大学 | Multifunctional combined assembled model test box device combining foundation pit and tunnel and application |
| CN111474061B (en) * | 2020-04-30 | 2022-09-02 | 淮安市计量测试中心 | Water tank bearing strength test platform |
| CN112051133B (en) * | 2020-09-03 | 2024-04-05 | 华北科技学院 | Loading system for mechanical simulation test |
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| DE19521777C2 (en) * | 1995-06-20 | 1998-08-20 | Deutsch Zentr Luft & Raumfahrt | Arrangement for introducing normal forces into shells |
| JP4399570B2 (en) * | 2000-06-12 | 2010-01-20 | 東京電力株式会社 | Horizontal force loading method and apparatus for substructure |
| CN2716851Y (en) * | 2004-03-26 | 2005-08-10 | 北京工业大学 | Building block type mechanical motion mechanism for simulating seismic oscillation table array system |
| CN100535267C (en) * | 2005-06-28 | 2009-09-02 | 中国矿业大学(北京) | Simulation test system for underground construction in city |
| CN101285808B (en) * | 2008-05-29 | 2010-08-04 | 山东大学 | High crustal stress genuine three-dimensional load model trial system |
| CN102879549B (en) * | 2012-09-29 | 2015-07-08 | 重庆大学 | Three-way load large-scale three-dimensional analog simulation test system |
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Effective date of registration: 20180508 Address after: 272200 Wang Chieh Road, Jinxiang County, Jining, Shandong Province, No. 15-1 Patentee after: SHANDONG QINGYI INTELLIGENT EQUIPMENT MANUFACTURING CO., LTD. Address before: 100022 No. 100 Chaoyang District Ping Tian Park, Beijing Patentee before: Beijing University of Technology |
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