CN103866803B - A kind of roadbed side slope supporting construction large scale model test loading system - Google Patents
A kind of roadbed side slope supporting construction large scale model test loading system Download PDFInfo
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- CN103866803B CN103866803B CN201410135254.4A CN201410135254A CN103866803B CN 103866803 B CN103866803 B CN 103866803B CN 201410135254 A CN201410135254 A CN 201410135254A CN 103866803 B CN103866803 B CN 103866803B
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- counter force
- force wall
- loading cylinder
- servo loading
- load plate
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention is a kind of roadbed side slope supporting construction large scale model test loading system.Described horizontal addload system is made up of counter force wall, servo loading cylinder, load plate, guide peg, anchor cable, counter force wall embeds ground, counter force wall top arranges 2 road anchor cables and reinforces, the ground part of counter force wall is provided with multiple servo loading cylinder, one end of servo loading cylinder connects load plate, between counter force wall and load plate, have guide peg.Adopt horizontal addload, the size of the power be delivered on works and distribution form can be made definitely.Adopt servo loading system hierarchical loading, soil body real bearing state can be reproduced more accurately, be conducive to obtaining more real experimental data.Counter force wall embeds the soil body and reinforces with anchor cable, and Bit andits control is good, little to ambient influnence, and cost is lower.
Description
Technical field
The present invention relates to a kind of roadbed side slope supporting construction large scale model test loading system.
Background technology
Retaining structure ensures highway, the effective measure that Railway Bed Slope is stable, to the deformation failure models of the various slope supporting ruggedized constructions such as antislide pile, retaining wall, anchored frame, injecting grout through steel perforated pipe, structure and ground interaction mechanism, the actual functional performance research of different reinforcing mode has important engineering significance.But due to Rock And Soil and the interactional complexity of works, its force modes, failure mechanism etc. are often difficult to be obtained by theoretical research break through, and employing model testing then can be comparatively effective.
At present, in the large scale model test of retaining structure, be all using vertical load as load mode, by the structural plane manually arranged, transfer the load to works.But by vertical loading, the size and the distribution form that are delivered to the power on works are all indefinite, are measured also be difficult to reaction reality by earth pressure gauge, stress strain guage, this causes huge difficulty to the research of the large scale model test of retaining structure.
Summary of the invention
The object of this invention is to provide a kind of horizontal addload system for roadbed side slope supporting construction large scale model test, loading system can simulate Thrust of Landslide in actual roadbed side slope suffered by retaining structure or soil pressure.
First the present invention carries out numerical simulation to the prototype side slope Modling model intending simulation, obtain the Thrust of Landslide of side slope or the size of soil pressure and the regularity of distribution, as the level input load of model testing after it is suitably simplified, to study the operating shape of roadbed slope supporting structure under active force effect, deformation mechanism and supporting effect etc.
Technical scheme of the present invention is: described horizontal addload system is made up of counter force wall, servo loading cylinder, load plate, guide peg, anchor cable, counter force wall embeds ground, counter force wall top arranges 2 road anchor cables and reinforces, the overground part of counter force wall is provided with multiple servo loading cylinder, one end of servo loading cylinder connects load plate, between counter force wall and load plate, have guide peg.
Servo loading cylinder external part is connected with load plate by ball pivot, and described servo loading cylinder is by the supporting and fixing of servo loading cylinder.
Horizontal addload system of the present invention compared with the prior art tool has the following advantages:
1) adopt horizontal addload, the size of the power be delivered on works and distribution form can be made definitely;
2) adopt servo loading system hierarchical loading, soil body real bearing state can be reproduced more accurately, be conducive to obtaining more real experimental data.
3) counter force wall embeds the soil body and reinforces with anchor cable, and Bit andits control is good, little to ambient influnence, and cost is lower.
Accompanying drawing explanation
Fig. 1 is the structural representation of the horizontal addload system of model testing of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is that the horizontal addload system of model testing of the present invention is applied to using state figure in roadbed side slope and underground construction multifunction three-dimensional model test platform.
In figure: 1-counter force wall, 2-anchor cable, 3-servo loading cylinder supports, 4-guide peg, 5-servo loading cylinder, 6-load plate, 7-anchor head, 8-ball pivot, the transparent sidewall of 9-, 10-counter-force bracing frame.
Detailed description of the invention
As Figure 1-3, horizontal addload system of the present invention is made up of counter force wall 1, servo loading cylinder 5, load plate 6, guide peg 4, anchor cable 2, counter force wall embeds ground (the base degree of depth is determined according to correlation calculation result) counter force wall top and arranges twice anchor cable 2 and reinforce, the overground part of counter force wall is provided with multiple servo loading cylinder, one end of servo loading cylinder connects load plate, guide peg is had between counter force wall and load plate, servo loading cylinder external part is connected with load plate by ball pivot, and described servo loading cylinder supports 3 by servo loading cylinder and fixes.
Counter force wall is divided into the cantilever segment of overground part and the fixed section of under ground portion, and counter force wall is reinforced concrete structure, provides counter-force for loading cylinder.Counter force wall top arranges 2 road anchor cables and reinforces, to reduce counter force wall displacement.
Servo loading cylinder configuration 6 cover, point 3 row 2 row are arranged, top and middle part load cylinder and often overlap maximum thrust 500kN, and bottom loads cylinder and often overlaps maximum thrust 1000kN, can realize triangle and load and uniform load.Often arrange servo loading cylinder and join a set of load plate, adopt Plate Welding.Load plate applies horizontal force to " test specimen " under the effect of piston, and load plate is led by " guide rod ".Often cover loads that force snesor joined by cylinder, displacement transducer, servo valve are each a set of, is controlled the power and displacement that load cylinder by Full Digitized Servo Control System.
The supporting of servo loading cylinder plays a supportive role to servo loading cylinder on the one hand with arranging of guide peg, guarantees that load plate stablizes synchronous loading on the other hand, is effectively eliminated simultaneously to lateral force by preposition ball pivot.
Operation system setting servo pump station of the present invention is six cover servo loading cylinders fuel feeding simultaneously by a point oily module.Operation system setting hydraulic pressure separator and pipeline, separator is the hydraulic conversion module connecting servo loading cylinder and pumping plant.By this module, by pumping plant oil circuit one point six, facilitate the configuration of fluid pressure line simultaneously.
The horizontal addload system of model testing of the present invention is applied in roadbed side slope and underground construction multifunction three-dimensional model test platform, as shown in Figure 4.
Claims (3)
1. a roadbed side slope supporting construction large scale model test loading system, it is characterized in that described loading system is horizontal addload system, be made up of counter force wall, servo loading cylinder, load plate, guide peg, anchor cable, counter force wall embeds ground, counter force wall top arranges 2 road anchor cables and reinforces, the overground part of counter force wall is provided with multiple servo loading cylinder, and one end of servo loading cylinder connects load plate, between counter force wall and load plate, have guide peg.
2. roadbed side slope supporting construction large scale model test loading system according to claim 1, it is characterized in that described servo loading cylinder external part is connected with load plate by ball pivot, servo loading cylinder is by the supporting and fixing of servo loading cylinder.
3. roadbed side slope supporting construction large scale model test loading system according to claim 1, it is characterized in that described servo loading cylinder configuration 6 cover, divide 3 row 2 row to arrange, top and middle part load cylinder and often overlap maximum thrust 500kN, and bottom loading cylinder often overlaps maximum thrust 1000kN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135254.4A CN103866803B (en) | 2014-04-04 | 2014-04-04 | A kind of roadbed side slope supporting construction large scale model test loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410135254.4A CN103866803B (en) | 2014-04-04 | 2014-04-04 | A kind of roadbed side slope supporting construction large scale model test loading system |
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| CN103866803A CN103866803A (en) | 2014-06-18 |
| CN103866803B true CN103866803B (en) | 2015-08-12 |
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| CN201410135254.4A Active CN103866803B (en) | 2014-04-04 | 2014-04-04 | A kind of roadbed side slope supporting construction large scale model test loading system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133673B (en) * | 2015-09-25 | 2017-01-18 | 三峡大学 | Loading force measuring device for slope model experiment and loading fixing method of loading force measuring device |
| CN106226172A (en) * | 2016-08-31 | 2016-12-14 | 云南省交通规划设计研究院 | A kind of radical operators Situ Computation device and application process |
| CN108643250A (en) * | 2018-05-23 | 2018-10-12 | 中铁二院工程集团有限责任公司 | A kind of model test apparatus and test method of Study of Landslides middle frame antiskid structure stress characteristic |
| CN108914993B (en) * | 2018-08-06 | 2019-08-09 | 中国矿业大学 | A kind of works is by uneven settlement of foundation and the pilot system of horizontal loads |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003194636A (en) * | 2001-12-27 | 2003-07-09 | Mitsubishi Electric Corp | Dynamic loading device for pile, dynamic loading method for pile and dynamic loading test method |
| CN102493500B (en) * | 2011-12-06 | 2013-10-09 | 湖北省电力勘测设计院 | Foundation base model test device capable of bidirectional loading |
| CN203247614U (en) * | 2013-05-10 | 2013-10-23 | 山东大学 | Anchor-pulling type retaining wall model test device |
| CN103290864B (en) * | 2013-06-14 | 2015-07-01 | 东南大学 | Device suitable for horizontal and vertical combined loading of pile foundation |
| 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 |
| CN103498487B (en) * | 2013-10-18 | 2015-07-22 | 国家电网公司 | Horizontal loading device and system based on clinoform |
| CN203768954U (en) * | 2014-04-04 | 2014-08-13 | 云南省交通规划设计研究院 | Roadbed slope supporting structure object large scale model test loading system |
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Address after: 650000 Yunnan province Kunming City Road No. 9 Xiang Shi Tuo Patentee after: BROADVISION ENGINEERING CONSULTANTS Address before: 650000 Yunnan province Kunming City Road No. 9 Xiang Shi Tuo Patentee before: BROADVISION ENGINEERING CONSULTANTS |
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