CN203639954U - Test platform for tri-directional static and dynamic loading model of bridge deep water foundation - Google Patents

Test platform for tri-directional static and dynamic loading model of bridge deep water foundation Download PDF

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CN203639954U
CN203639954U CN201320582827.9U CN201320582827U CN203639954U CN 203639954 U CN203639954 U CN 203639954U CN 201320582827 U CN201320582827 U CN 201320582827U CN 203639954 U CN203639954 U CN 203639954U
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foundation
test
model
vertical
horizontal
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刘高
张喜刚
过超
付佰勇
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CCCC Highway Long Bridge Construction National Engineering Research Center Co Ltd
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CCCC Highway Long Bridge Construction National Engineering Research Center Co Ltd
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Abstract

The utility model discloses a test platform for a tri-directional static and dynamic loading model of a bridge deep water foundation. The test platform comprises a test foundation trench, a vertical loading system, a horizontal bidirectional loading system and a water level simulating system, wherein the test foundation trench is used for setting foundation soil, water and a model, the vertical loading system which is used for applying vertical static and dynamic action to the model is mounted at the top of the test foundation trench, the horizontal bidirectional loading system which is used for applying two or more horizontal static and dynamic actions to the model is mounted at the upper part of the inner side wall of the test foundation trench, and the water level simulating system which is used for controlling water filling and draining and a test water level in the test foundation trench is mounted at the bottom of the test foundation trench and the outer side of the outer side wall of the test foundation trench. The test platform can be used for testing and researching the model of the bridge deep water foundation, such as a pile group, an open caisson, a caisson, a composite foundation and the like, and a bridge tower (pile) under vertical, horizontal bidirectional and other tri-directional static and dynamic actions. The difficulty in static and dynamic interaction simulation of the foundation soil, the water, the bridge deep water foundation and the bridge tower (pile) under the combination work conditions of vertical force, horizontal force, bending moment, torque and the like is solved.

Description

The quiet power stress model of a kind of bridge deepwater foundation three-dimensional test platform
Technical field
The utility model relates to Foundation Design technical field, is specifically related to the quiet power stress model of a kind of bridge deepwater foundation three-dimensional test platform.
Background technology
Along with bridge construction moves towards off-lying sea from inland, the construction conditions such as deep water, soft base, high wind, torrent, wave, macroseism are more complicated, and required span of bridge is also increasing.Compared with Short/Medium Span Bridge basis, long-span bridge deep water foundation not only needs to bear larger vertical load, also hit owing to facing ship, macroseism, strong wind, the significant horizontal power that the disaster effects such as billow produce, these horizontal forces and the additional bending moment causing thereof even can reach the magnitude identical with vertical force to basic effect, be subject to force mode and the load-carrying properties on basis obviously differ from conventional inland river and land bridge foundation, vertical force, multiple spot horizontal force, moment of flexure, moment of torsion etc. jointly quiet, dynamic action is the main feature of bridge deep water foundation of growing up, also be to study at present weaker part both at home and abroad.
Due to the anisotropy of soil body material and the inhomogeneities of distribution, all there is many supposition in various theories and the method for numerical simulation in geotechnical engineering field.Therefore, model testing is one of most effectual way of research foundation, engineering over strait or long-span bridge all will arrange relevant deep water foundation model testing in preliminary design, construction drawing design and construction stage, for check basic stress performance and critical process reliability, check the reasonability of theory analysis and numerical simulation result, provide technical support for designing and constructing.Both at home and abroad conventional deep water foundation model testing mainly contains several classes such as centrifugal model test, indoor and on-the-spot proportional model test.Centrifugal model test advantage is to reappear prototype stress field with less model, and its weak point is native particle size effect, in addition because moulded dimension is less, the selection of measuring apparatus, arrange and bury underground more difficult; On-the-spot model testing is better with the uniformity of prototype, but somewhat expensive, the cycle is long, disturbing factor is many, and majority is as the final checkings of some important engineerings.So utilizing model test platform to carry out the test of large guide or prototype is the effective means that discloses bridge deepwater foundation load-carrying properties, inspection theoretical design method, development of new structure, is at home and abroad used widely.
Domestic existing test platform is as larger in large-scale pile foundation model testing system, ground and slope engineering model test platform etc. at present, can carry out large proportional model test research, but subjects mainly bears superstructure mainly for conventional building structure basis etc. and basic gravity load is main, test platform biases toward vertical load simulation, cannot realize very three-dimensional loading.Part test platform is improved technically, has realized the function such as multidirectional loading and water level simulation.As simulation test system for underground construction in city, can realize three-dimensional loading and influence on groundwater simulated test to polytype city underground engineering, but the steel work that the trough body structure of this class test platform is reduced size, load capability is limited, and level need be installed and cannot adjust flexibly loading position along column to actuator, and attainable load mode is still comparatively single.
Therefore, the existing basic test platform loads of key breakthrough mode is single, bias toward the weak links such as vertical force effect simulation, exploitation packaged type multiple spot charger and water level simulation system, build the quiet power stress model of a kind of bridge deepwater foundation three-dimensional test platform, can be for the multi-direction quiet dynamic loading of feature simulation of deep water foundation, can carry out again polymorphic type basis multi-state test under different geology and water level condition, significant for the development of Foundation Design.
Utility model content
(1) technical problem that will solve
In order to overcome the deficiency of existing geotechnical model test technology, main purpose of the present utility model is to provide the quiet power stress model of a kind of bridge deepwater foundation three-dimensional test platform, the quiet dynamic action of vertical, direction across bridge, vertical bridge or composite condition single to suffered vertical force, horizontal force, moment of flexure, moment of torsion can be simulated, the interaction of foundation soil-water-bridge deepwater foundation-bridge tower (pier) under the quiet dynamic action of three-dimensional can be simulated more truly.
(2) technical scheme
For achieving the above object, the utility model provides the quiet power stress model of a kind of bridge deepwater foundation three-dimensional test platform, and this platform comprises: for the test foundation trench 1 of foundation soil 30, water level 31, deep water foundation model 32 and bridge tower model 33 is set; Be installed on the top of test foundation trench 1 for apply vertical quiet power actuated vertical loading system 2 to model; Be installed on the inside wall top of test foundation trench 1 for applying two and above level to model to quiet power actuated horizontal bidirectional loading system 3; And be installed on the test bottom of foundation trench 1 and lateral wall outside for testing the water level simulation system 4 of the interior plumbing of foundation trench 1 and the control of test water level.
In such scheme, described test foundation trench 1 comprises that entity reinforced concrete floor 5, entity steel concrete sidewall paneling 6 and band load the counter force wall 7 in hole.The counter force wall 7 that loads hole along band at the outer upper part of described test foundation trench 1 is furnished with fitting operation chamber 8, as horizontal bidirectional loading system 3 being arranged on to the operating space of being with on the counter force wall 7 that loads hole.
In such scheme, described vertical loading system 2 comprises crossbeam 9, column 10, rail plate 11, Bidirectional slide plate 12, vertical electro-hydraulic servo actuator 13 and spherical hinge 14, wherein: crossbeam 9 is arranged on column 10, installation site can be adjusted up and down along column 10; Column 10 is arranged on rail plate 11; Rail plate 11 is embedded in the top of test foundation trench 1 in advance; Bidirectional slide plate 12 is fixed on crossbeam 9; Vertical electro-hydraulic servo actuator 13 is arranged on Bidirectional slide plate 12; Spherical hinge 14 is positioned at the lower end of vertical electro-hydraulic servo actuator 13.Under horizontal high frequency Under Dynamic Load, vertical electro-hydraulic servo actuator 13 upper ends substitute Bidirectional slide plate 12 by spherical hinge 14, in loading procedure, calculate in real time the payload values of correction level to electro-hydraulic servo actuator 17 by control system, eliminate vertical electro-hydraulic servo actuator 13 angles and change the load deviation causing.
In such scheme, described Bidirectional slide plate 12 comprises connection base 34, longitudinal sliding motion plate 35, horizontal sliding bottom 36, the horizontal sliding panel 37 being connected with crossbeam 9 and the actuator junction plate 38 being connected with vertical electro-hydraulic servo actuator 13, can realize vertical electro-hydraulic servo actuator 13 and slide along horizontal bidirectional, and to not having the test mode of locking that horizontal force loads to eliminate slip.Described connection base 34 is connected with crossbeam 9 by transom bolt hole 39, and actuator junction plate 38 is connected with vertical electro-hydraulic servo actuator 13 by actuator bolt hole 40.
In such scheme, described horizontal bidirectional loading system 3 comprises that the horizontal loaded seat plate 15 with T-shaped groove, the actuator installing plate 16 with T-shaped groove, level are to electro-hydraulic servo actuator 17 and connecting rod 18, wherein, be arranged on and be with on the counter force wall 7 that loads hole or on column 10 with the horizontal loaded seat plate 15 of T-shaped groove; Be arranged on the horizontal loaded seat plate 15 with T-shaped groove with the actuator installing plate 16 of T-shaped groove; Level is arranged on the actuator installing plate 16 with T-shaped groove and with connecting rod 18 and is connected to electro-hydraulic servo actuator 17.Described level can realize horizontal cross and vertical mobile along the length direction of the loaded seat plate 15 with T-shaped groove and the actuator installing plate 16 with T-shaped groove to electro-hydraulic servo actuator 17, thereby need to adjust flexibly loading Position and quantity according to loading condition, by to level to different parameters such as load waveform and frequency such as electro-hydraulic servo actuator 17 input sine waves, triangular wave, square wave or random waves, realize multidirectional quiet dynamic action simulation.
In such scheme, described water level simulation system 4 comprises geotextiles 19, permeable cover plate 20, seepage flow pipe network 21, catch basin 22, water plug 23, electric lifting device 24, vertical shaft 25, water tank 26, level sensor 27, discharge pipe line 28 and inlet pipeline 29, wherein: the seepage flow pipe network 21 with 2%~5% gradient is arranged in test foundation trench 1 bottom, seepage flow pipe network 21 end faces are provided with permeable cover plate 20 and geotextiles 19, prevent that soil from entering in seepage flow pipe network 21; Seepage flow pipe network 21 is communicated with catch basin 22, water plug 23 and discharge pipe line 28, and the water in test foundation trench 1 imports catch basin 22 by seepage flow pipe network 21, utilizes water plug 23 to draw water, and discharges by discharge pipe line 28; Water tank 26 is arranged on electric lifting device 24, can be along promoting up and down in vertical shaft 25 depth boundses; In water tank 26, be provided with level sensor 27, level sensor 27 is for measuring and control the interior water level of water tank 26; Inlet pipeline 29 is communicated with water tank 26 and catch basin 22 respectively.
(3) beneficial effect
Can find out from technique scheme, the utlity model has following beneficial effect:
1, the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that the utility model provides, two-way with moving when vertical electro-hydraulic servo actuator has been realized static loading and low cyclic loading by Bidirectional slide plate, has solved in three-dimensional power load test level to the technical barrier loading vertical loading effect by spherical hinge and real time load fine setting.
2, the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that the utility model provides, level has realized horizontal cross and vertical mobile to electro-hydraulic servo actuator by T-shaped groove, can need to adjust flexibly loading Position and quantity according to loading condition, realize the synchronously simulating that the quiet power of multiple spot level loads.
3, the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that the utility model provides, its test foundation trench inside dimension be 10m length × 6m wide × 8m is dark, can carry out large proportional model test, effectively reduces dimensional effect and the boundary effect of model testing; Can need in test foundation trench, fill multi-layered Soils (weak soil, sandy soil, cohesive soil, gravel etc.) according to test, and realize WATER LEVEL CHANGES and control by water level simulation system.
4, the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that the utility model provides, due to loading direction and load type is many, test space is large, test conditions is controlled, can carry out the load-carrying properties test of polymorphic type basis (as pile foundation, open caisson foundation, laying foundation, composite foundation) model, operating modes such as preloading in also can analog basis construction, backfill, SEA LEVEL VARIATION and closely connect the impact of construction on contiguous structure thing etc.
Brief description of the drawings
The positive elevational schematic view of the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that Fig. 1 provides for the utility model;
The side elevation schematic diagram of the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that Fig. 2 provides for the utility model;
The floor map of the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that Fig. 3 provides for the utility model;
The Bidirectional slide plate schematic diagram of the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that Fig. 4 provides for the utility model.
Reference numeral: test foundation trench 1; Vertical loading system 2; Horizontal bidirectional loading system 3; Water level simulation system 4; Entity reinforced concrete floor 5; Entity steel concrete sidewall paneling 6; Band loads the counter force wall 7 in hole; Fitting operation chamber 8; Crossbeam 9; Column 10; Rail plate 11; Bidirectional slide plate 12; Vertical electro-hydraulic servo actuator 13; Spherical hinge 14; With the horizontal loaded seat plate 15 of T-shaped groove; With the actuator installing plate 16 of T-shaped groove; Level is to electro-hydraulic servo actuator 17; Connecting rod 18; Geotextiles 19; Permeable cover plate 20; Seepage flow pipe network 21; Catch basin 22; Water plug 23; Electric lifting device 24; Vertical shaft 25; Water tank 26; Level sensor 27; Discharge pipe line 28; Inlet pipeline 29; Foundation soil 30; Water level 31; Deep water foundation model 32; Bridge tower model 33; Connect base 34; Longitudinal sliding motion plate 35; Laterally sliding bottom 36; Laterally sliding panel 37; Actuator junction plate 38, transom bolt hole 39; Actuator bolt hole 40.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
As shown in FIG. 1 to 3, the quiet power stress model of the bridge deepwater foundation three-dimensional test platform that the utility model provides comprises: test foundation trench 1, vertical loading system 2, horizontal bidirectional loading system 3 and water level simulation system 4.Wherein, test foundation trench 1 is for arranging foundation soil 30, water level 31, deep water foundation model 32 and bridge tower model 33; Install for apply vertical quiet power actuated vertical loading system 2 to model at the top of test foundation trench 1; Install for applying two and above level to quiet power actuated horizontal bidirectional loading system 3 to model on the inside wall top of test foundation trench 1; The water level simulation system 4 for testing the interior plumbing of foundation trench 1 and the control of test water level is installed in the bottom of test foundation trench 1 and lateral wall outside.
Test foundation trench 1 comprises that entity reinforced concrete floor 5, entity steel concrete sidewall paneling 6 and band load the counter force wall 7 in hole, and, the counter force wall 7 that loads hole along band at the outer upper part of test foundation trench 1 is furnished with fitting operation chamber 8, as horizontal bidirectional loading system 3 being arranged on to the operating space of being with on the counter force wall 7 that loads hole.
Vertical loading system 2 comprises crossbeam 9, column 10, rail plate 11, Bidirectional slide plate 12, vertical electro-hydraulic servo actuator 13 and spherical hinge 14.Wherein, column 10 is arranged on the rail plate 11 that is embedded in advance test foundation trench 1 top; Crossbeam 9 is arranged on column 10, and installation site can be adjusted up and down along column 10; Vertical electro-hydraulic servo actuator 13 is arranged on the Bidirectional slide plate 12 being fixed on crossbeam 9; Bidirectional slide plate 12 slides along horizontal bidirectional for realizing vertical electro-hydraulic servo actuator 13, also can, to not having the test mode of locking that horizontal force loads to eliminate slip, comprise connection base 34, longitudinal sliding motion plate 35, horizontal sliding bottom 36, the horizontal sliding panel 37 being connected with crossbeam 9 and the actuator junction plate 38 being connected with vertical electro-hydraulic servo actuator 13; Spherical hinge 14 is positioned at the lower end of vertical electro-hydraulic servo actuator 13.Under horizontal high frequency Under Dynamic Load, vertical electro-hydraulic servo actuator 13 upper ends can substitute Bidirectional slide plate 12 by spherical hinge 14, in loading procedure, calculate in real time the payload values of correction level to electro-hydraulic servo actuator 17 by control system, eliminate vertical electro-hydraulic servo actuator 13 angles and change the load deviation causing.
Bidirectional slide plate 12 in vertical loading system 2 comprises the longitudinal sliding motion plate 35 that connects base 34, realize longitudinal sliding motion function, the horizontal sliding bottom 36 of realizing horizontal sliding function and horizontal sliding panel 37, actuator junction plate 38, as shown in Figure 4.Connect base 34 and be connected with crossbeam by transom bolt hole 39, actuator junction plate 38 is connected with vertical electro-hydraulic servo actuator 13 by actuator bolt hole 40.
Horizontal bidirectional loading system 3 comprises that the horizontal loaded seat plate 15 with T-shaped groove, the actuator installing plate 16 with T-shaped groove, level are to electro-hydraulic servo actuator 17 and connecting rod 18.Wherein, be arranged on and be with on the counter force wall 7 that loads hole or on column 10 with the horizontal loaded seat plate 15 of T-shaped groove; Be arranged on the horizontal loaded seat plate 15 with T-shaped groove with the actuator installing plate 16 of T-shaped groove; Level is arranged on the actuator installing plate 16 with T-shaped groove and with connecting rod 18 and is connected to electro-hydraulic servo actuator 17, can realize horizontal cross and vertical mobile along the length direction of the loaded seat plate 15 with T-shaped groove and the actuator installing plate 16 with T-shaped groove, thereby can need to adjust flexibly loading Position and quantity according to loading condition, by to level to different parameters such as load waveform and frequency such as electro-hydraulic servo actuator 17 input sine waves, triangular wave, square wave, random waves, realize multidirectional quiet dynamic action simulation.
Water level simulation system 4 comprises geotextiles 19, permeable cover plate 20, seepage flow pipe network 21, catch basin 22, water plug 23, electric lifting device 24, vertical shaft 25, water tank 26, level sensor 27, discharge pipe line 28 and inlet pipeline 29.Wherein, the seepage flow pipe network 21 with 2%~5% gradient is arranged in test foundation trench 1 bottom, and seepage flow pipe network 21 end faces are provided with permeable cover plate 20 and geotextiles 19, prevent that soil from entering in seepage flow pipe network 21; Seepage flow pipe network 21 is communicated with catch basin 22, water plug 23 and discharge pipe line 28, and the water in test foundation trench 1 can import catch basin 22 by seepage flow pipe network 21, utilizes water plug 23 to draw water, and discharges by discharge pipe line 28.Water tank 26 is arranged on electric lifting device 24, can be along promoting up and down in vertical shaft 25 depth boundses; In water tank 26, be provided with level sensor 27, level sensor 27 is for measuring and controlling the interior water level of water tank 26, and inlet pipeline 29 is communicated with water tank 26 and catch basin 22 respectively.
The using method of this test platform is now described with the three-dimensional load test of a bridge deepwater foundation and top bridge tower structural model.
At the interior filled foundation soil 30 of test foundation trench 1, the model with deep water foundation model 32 and bridge tower model 33 is also installed, the soil layer condition of foundation soil 30 can be according to the preparation of test demand, as the multi-layered Soils of the compositions such as weak soil, sandy soil, cohesive soil, gravel.
After model installs, priming level simulation system 4, utilize electric lifting device 24 to make water tank 26 need the height of the water level 31 of simulation be promoted to test in vertical shaft 25 in, water in water tank 26 enters catch basin 22 by inlet pipeline 29, and make the water level of testing in foundation trench 1 constantly increase by seepage flow pipe network 21, the water level signal in water tank 26 is transferred to control computer by level sensor 27, in the time reaching the water level 31 needing, will automatically stop to the interior water supply of test foundation trench 1.
Adjust the position of column 10 on rail plate 11 and the height of crossbeam 9, and adjust the position of Bidirectional slide plate 12 on crossbeam 9, by spherical hinge 14, vertical electro-hydraulic servo actuator 13 is aimed to bridge tower model 33 appointed areas of required loading, realized applying of vertical force by hydraulic system.Horizontal loaded seat plate with T- shaped groove 15 and 16 combinations of the actuator installing plate with T-shaped groove are arranged on the counter force wall 7 or column 10 in band loading hole, many rows or multiple row level are installed on the actuator installing plate 16 with T-shaped groove to electro-hydraulic servo actuator 17, and the level of adjusting to electro-hydraulic servo actuator 17 to deep water foundation model 32 and the required level of bridge tower model 33 to loading Position, the combination that realizes horizontal force, moment of flexure, moment of torsion etc. by hydraulic system applies; Input the different parameters such as load waveform and frequency, the acting in conjunction of low all Cyclic Loadings such as simulated wind load, wave load to deep water foundation and bridge tower by hydraulic control system.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. the quiet power stress model of a bridge deepwater foundation three-dimensional test platform, is characterized in that, this platform comprises:
Be used for arranging the test foundation trench (1) of foundation soil (30), water level (31), deep water foundation model (32) and bridge tower model (33);
Be installed on the top of test foundation trench (1) for apply vertical quiet power actuated vertical loading system (2) to model;
Be installed on the inside wall top of test foundation trench (1) for applying two and above level to quiet power actuated horizontal bidirectional loading system (3) to model; And
Be installed on the bottom of test foundation trench (1) and the water level simulation system (4) that lateral wall outside is used for testing the interior plumbing of foundation trench (1) and tests water level control.
2. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 1 test platform, it is characterized in that, described test foundation trench (1) comprises that entity reinforced concrete floor (5), entity steel concrete sidewall paneling (6) and band load the counter force wall (7) in hole.
3. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 2 test platform, it is characterized in that, the counter force wall (7) that upper part loads hole along band outside described test foundation trench (1) is furnished with fitting operation chamber (8), as horizontal bidirectional loading system (3) being arranged on to the operating space of being with on the counter force wall (7) that loads hole.
4. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 1 test platform, it is characterized in that, described vertical loading system (2) comprises crossbeam (9), column (10), rail plate (11), Bidirectional slide plate (12), vertical electro-hydraulic servo actuator (13) and spherical hinge (14), wherein: it is upper that crossbeam (9) is arranged on column (10), and installation site can be adjusted up and down along column (10); Column (10) is arranged on rail plate (11); Rail plate (11) is embedded in the top of test foundation trench (1) in advance; Bidirectional slide plate (12) is fixed on crossbeam (9); Vertical electro-hydraulic servo actuator (13) is arranged on Bidirectional slide plate (12); Spherical hinge (14) is positioned at the lower end of vertical electro-hydraulic servo actuator (13).
5. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 4 test platform, it is characterized in that, under horizontal high frequency Under Dynamic Load, vertical electro-hydraulic servo actuator (13) is the alternative Bidirectional slide plate (12) of spherical hinge (14) for upper end, in loading procedure, calculate in real time the payload values of correction level to electro-hydraulic servo actuator (17) by control system, eliminate vertical electro-hydraulic servo actuator (13) angle and change the load deviation causing.
6. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 4 test platform, it is characterized in that, described Bidirectional slide plate (12) comprises the connection base (34) being connected with crossbeam (9), longitudinal sliding motion plate (35), laterally sliding bottom (36), horizontal sliding panel (37) and the actuator junction plate (38) being connected with vertical electro-hydraulic servo actuator (13), can realize vertical electro-hydraulic servo actuator (13) slides along horizontal bidirectional, and to not having the test mode of locking that horizontal force loads to eliminate slip.
7. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 6 test platform, it is characterized in that, described connection base (34) is connected with crossbeam (9) by transom bolt hole (39), and actuator junction plate (38) is connected with vertical electro-hydraulic servo actuator (13) by actuator bolt hole (40).
8. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 1 test platform, it is characterized in that, described horizontal bidirectional loading system (3) comprises that the horizontal loaded seat plate (15) with T-shaped groove, the actuator installing plate (16) with T-shaped groove, level are to electro-hydraulic servo actuator (17) and connecting rod (18), wherein: be arranged on and be with on the counter force wall (7) that loads hole or on column (10) with the horizontal loaded seat plate (15) of T-shaped groove; Be arranged on the horizontal loaded seat plate (15) with T-shaped groove with the actuator installing plate (16) of T-shaped groove; Level is arranged on the actuator installing plate (16) with T-shaped groove and is connected with connecting rod (18) to electro-hydraulic servo actuator (17).
9. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 8 test platform, it is characterized in that, described level can realize horizontal cross and vertical mobile along the length direction of the loaded seat plate (15) with T-shaped groove and the actuator installing plate (16) with T-shaped groove to electro-hydraulic servo actuator (17), thereby need to adjust flexibly loading Position and quantity according to loading condition, by level is inputted to different load waveform and frequency parameter to electro-hydraulic servo actuator (17), realize multidirectional quiet dynamic action simulation.
10. the quiet power stress model of bridge deepwater foundation three-dimensional according to claim 1 test platform, it is characterized in that, described water level simulation system (4) comprises geotextiles (19), permeable cover plate (20), seepage flow pipe network (21), catch basin (22), water plug (23), electric lifting device (24), vertical shaft (25), water tank (26), level sensor (27), discharge pipe line (28) and inlet pipeline (29), wherein:
The seepage flow pipe network (21) with 2%~5% gradient is arranged in test foundation trench (1) bottom, seepage flow pipe network (21) end face is provided with permeable cover plate (20) and geotextiles (19), prevents that soil from entering in seepage flow pipe network (21);
Seepage flow pipe network (21) is communicated with catch basin (22), water plug (23) and discharge pipe line (28), water in test foundation trench (1) imports catch basin (22) by seepage flow pipe network (21), utilize water plug (23) to draw water, and discharge by discharge pipe line (28);
It is upper that water tank (26) is arranged on electric lifting device (24), can be along promoting up and down in vertical shaft (25) depth bounds;
In water tank (26), be provided with level sensor (27), level sensor (27) is for measuring and control the interior water level of water tank (26);
Inlet pipeline (29) is communicated with water tank (26) and catch basin (22) respectively.
CN201320582827.9U 2013-09-18 2013-09-18 Test platform for tri-directional static and dynamic loading model of bridge deep water foundation Expired - Fee Related CN203639954U (en)

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CN103510551A (en) * 2013-09-18 2014-01-15 中交公路长大桥建设国家工程研究中心有限公司 Three-directional static and dynamic loading model test platform for deep water foundations of bridges
CN104196061A (en) * 2014-08-13 2014-12-10 东南大学 Bridge foundation lateral loading testing device and method
CN106284437A (en) * 2016-07-28 2017-01-04 河海大学 A kind of bucket base vertically initial impedance,motional assay device and test method
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CN103510551B (en) * 2013-09-18 2015-09-30 中交公路长大桥建设国家工程研究中心有限公司 A kind of bridge deepwater foundation three-dimensional force model stress model test platform
CN103510551A (en) * 2013-09-18 2014-01-15 中交公路长大桥建设国家工程研究中心有限公司 Three-directional static and dynamic loading model test platform for deep water foundations of bridges
CN104196061A (en) * 2014-08-13 2014-12-10 东南大学 Bridge foundation lateral loading testing device and method
CN104196061B (en) * 2014-08-13 2015-12-09 东南大学 Bridge foundation horizontal install experimental rig and test method
CN106284437A (en) * 2016-07-28 2017-01-04 河海大学 A kind of bucket base vertically initial impedance,motional assay device and test method
CN106498987B (en) * 2016-10-21 2018-06-19 东南大学 A kind of field dynamic test device for characterizing shallow foundation dynamic characteristics
CN106498987A (en) * 2016-10-21 2017-03-15 东南大学 A kind of field dynamic test device for characterizing shallow foundation dynamic trait
CN107165204A (en) * 2017-04-28 2017-09-15 浙江科技学院 It is a kind of to consider the method for testing that artesian water acts on Single Pile horizontal bearing characteristic
CN107991115A (en) * 2017-11-23 2018-05-04 中国铁路总公司 A kind of model assay systems and test method for studying high gradient slope pier footing stress deformation characteristic
CN109024713A (en) * 2018-06-12 2018-12-18 同济大学 Simulate clump of piles dynamic effect and the coefficient device of Pile Soil and its analogy method
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CN109706981B (en) * 2018-12-29 2023-09-22 中铁二院工程集团有限责任公司 Vibrating table model test system for high-steep slope pier foundation stress deformation characteristics
CN110296881A (en) * 2019-04-16 2019-10-01 上海大学 A kind of soil model pilot system and method suitable for geotechnical slope, roadbed embankment
CN110296881B (en) * 2019-04-16 2022-07-12 上海大学 Soil body model test system and method suitable for rock-soil side slope and roadbed embankment

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