CN106501014A - Vertical load testing machine for domain tunnel structure - Google Patents
Vertical load testing machine for domain tunnel structure Download PDFInfo
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- CN106501014A CN106501014A CN201610840260.9A CN201610840260A CN106501014A CN 106501014 A CN106501014 A CN 106501014A CN 201610840260 A CN201610840260 A CN 201610840260A CN 106501014 A CN106501014 A CN 106501014A
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- tunnel structure
- jack
- domain tunnel
- crossbeam
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of vertical load testing machine for domain tunnel structure, including the reaction frame being made up of column and crossbeam, reaction frame base is provided with spring fastening group, domain tunnel structure is placed in spring fastening group, crossbeam bottom is provided with jack, jack upper end is fixed on crossbeam, lower end withstands on the load(ing) point on domain tunnel structure, the domain tunnel structure left and right sides is provided with horizontal charging assembly, during test, jack and spring fastening group collective effect apply vertical force and are vertically loaded, and horizontal charging assembly applies side force carries out horizontal addload.Compared with prior art, the present invention carries out experimental test to domain tunnel structure using vertical load mode, fully take into account the gravitational effect of structure, simultaneously domain tunnel structure is placed in spring fastening group, the boundary condition of elastic foundation can be simulated, makes result of the test truly reflect the stress of tunnel structure in actual soil layer.
Description
Technical field
The present invention relates to a kind of experimental rig, more particularly, to a kind of vertical load test dress for domain tunnel structure
Put.
Background technology
In the construction and construction in tunnel, the spies such as soft clay foundation, expansive soil foundation, collapsible loess foundation are frequently encountered
Different Rock soil Foundation, needs to carry out the research of foundation bearing deformation characteristic, and the structural device in needing to tunnel carries out mechanical property inspection
Survey to ensure the safety of constructing tunnel.Traditional tunnel structure test adopts horizontal addload mode, certainly flat by symmetrical tensioning
Loading, to detect the mechanical property of tunnel structure, but this cannot consider the gravitational effect of structure to weighing apparatus system, also not account for soil
, there is significant boundary condition distortion situation in the impact of lamination compression deformation, it is impossible to the stressing conditions of true reflection tunnel structure.
102493500 B of Chinese patent CN disclose one kind can foundation base model test device capable of bidirectional loading, the dress
Load-bearing frame is put for a rectangular rigid frame, model groove is the upper open rectangular bar of steel structural model groove of a box plate weld,
Load-bearing frame is enclosed within model groove periphery, and horizontal actuator counter-force post vertically stands on the left part of model groove, horizontal actuator left end
It is connected with horizontal actuator counter-force post, right-hand member is connected with stake top portion, vertical actuator upper end is connected with the upper beam of load-bearing frame
Connect, lower end is connected with stake top portion by vertical transmission rod.The device realizes automatic, the real-time monitoring of multiple physical quantitys, can be used for
Carry out the model tests such as sloped ground, composite foundation, pile foundation, but experimental rig object disclosed in the patent is foundation, no
It is applied to underground structure.
203465148 U of Chinese patent CN disclose a kind of tunnel-liner domain structural test charger, including center
Counterforce device, the multigroup load(ing) point being connected along the radially uniform distribution of center counterforce device and with center counterforce device, per group of loading
Point radially includes load distribution beam, hydraulic means from outside to inside successively, holds He Liang and at least one pull bar, load distribution beam with
Hold the corresponding pull bars of He Liang and be respectively equipped with installing hole, pull bar be fixed on after He Liang center counterforce device through load distribution beam with holding
On, lining cutting domain test specimen is arranged radially to be held on the inside of lotus beam 6, and hydraulic means is installed on load distribution beam and holds between lotus beam to carry
For load, but the patent charger is still mainly horizontal addload, that is, the tunnel-liner in testing is horizontal positioned, and actual
Middle tunnel-liner is vertical.Using horizontal addload, from load structure method aspect, which can simulate the outer lotus of structure
Carry, but which is to be arranged symmetrically, i.e., structure up and down, the load of left and right and distribution be symmetrically the same, and tunnel-liner in practice
The load up and down of structure and its distribution are asymmetrical, and this device can not solve the above problems；In addition, from can more reflect knot
The floor structure methods of structure actual loading set out, and existing charger can not be competent at.
Content of the invention
The purpose of the present invention is exactly to provide a kind of vertical loading for domain tunnel structure to solve the above problems
Experimental rig, this device consider the impact of the gravitational effect of structure and layer compression deformation, test is more really connect
Nearly actual conditions.
The purpose of the present invention is achieved through the following technical solutions：
A kind of vertical load testing machine for domain tunnel structure, including the reaction frame being made up of column and crossbeam,
Described reaction frame base is provided with spring fastening group, places domain tunnel structure to be measured, institute in described spring fastening group
The crossbeam bottom that states is provided with jack, and described jack upper end is fixed on crossbeam, and lower end is withstood on domain tunnel structure
Load(ing) point, the domain tunnel structure left and right sides are provided with horizontal charging assembly, during test, jack and spring fastening group collective effect
Apply vertical force vertically to be loaded, horizontal charging assembly applies side force carries out horizontal addload.
Described spring fastening group is formed by multiple rows of spring fastening laminating arrangement.
Described spring fastening group simulates different soil layer types by arranging the spring of different-stiffness.
The device is additionally provided with the side limit structure for preventing the domain tunnel structure from toppling, described side limit structure one end
It is located on the column of reaction frame, the other end is connected with domain tunnel structure.
Described horizontal charging assembly is made up of multigroup symmetrical tensioning self equilibrium systemses charger, along domain tunnel knot
Structure short transverse is uniformly distributed.
Described tensioning self equilibrium systemses charger includes left and right loading crossbeam, jack, jack fixed cross beam, pre-
Prestress steel strand and anchorage, are connected by prestress wire between left and right loading crossbeam, and prestress wire adds through right side
Carry crossbeam to be locked on jack fixed cross beam by anchorage, jack be located at right side loading crossbeam and jack fixed cross beam it
Between, as on the right side of jack pair, crossbeam is further applied load, the steel strand wires between the crossbeam of left and right constantly shorten, and make left and right crossbeam produce structure
The symmetrical power of life.
On column, crossbeam can be adjusted the crossbeam of described reaction frame up and down.
Described jack is hydraulic jack, and the Stress control end of jack is located at loading petrol station, loads petrol station
Flowline is provided with pressure sensor, and pressure sensor connects computer, can measure pressure and its change of jack in real time, i.e.,
The load being subject to for structure and its change
Described spring fastening is assembled with electron displacement meter, and electron displacement meter connects computer, can survey in real time in test
Go out deflection and its change of spring fastening, reflect the vertical displacement distribution of structure.
This device at the trial, domain tunnel structure to be measured is placed in spring fastening group, multiple jack is withstood on
Load(ing) point on domain tunnel structure, jack and spring fastening group collective effect apply vertical force and are vertically loaded, hydraulic pressure
Pressure sensor on jack connected pipes, by test pressure real-time Transmission to the computer for connecting, in spring fastening group
Electron displacement meter sends data to computer, calculates analysis for mechanics properties testing；Also can be applied by horizontal charging assembly
Plus side force carries out horizontal addload to domain tunnel structure.
Compared with prior art, the present invention carries out experimental test to domain tunnel structure using vertical load mode, fully
The gravitational effect of structure is considered, while domain tunnel structure is placed in spring fastening group, model configuration is not only able to certainly
Impact to its whole loading process again, it is also possible to the interaction of model configuration and surrounding soil, and surrounding soil deformation
Quadratic effect to structure, more can fully simulate stress of the liner structure in the actual soil body；This device can simulate elasticity
The boundary condition of ground, can simulate different soil layer types by adjusting support spring rigidity, so make result of the test trueer
Reflect the stress of tunnel structure in actual soil layer on the spot, the data that test is obtained also more approach test structure in tunnel
True stressing conditions, for corresponding engineering design provide with important references be worth data.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention；
Fig. 2 is the left view structural representation of the present invention；
In figure, 1- columns, 2- jack, 3- crossbeams, 4- spring fastening groups, the horizontal charging assemblies of 5-, 6- lateral Displacements are tied
Structure, 7- domain tunnel structures.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
For the vertical load testing machine of domain tunnel structure, including the reaction frame being made up of column 1 and crossbeam 3, instead
Power frame base is provided with spring fastening group 4, places domain tunnel structure 7 in spring fastening group 4, and 3 bottom of crossbeam is provided with some thousand
Jin top 2,2 upper end of jack is fixed on crossbeam 3, and lower end withstands on the load(ing) point on domain tunnel structure 7, domain tunnel structure 7
The left and right sides is provided with horizontal charging assembly 5.Laterally charging assembly 5 is symmetrical, and horizontal charging assembly 5 is by multigroup symmetrical tensioning
Self equilibrium systemses charger is constituted, and is uniformly distributed along domain tunnel structure short transverse, tensioning self equilibrium systemses charger
Including left and right loading crossbeam, jack, jack fixed cross beam, prestress wire and anchorage, lead between left and right loading crossbeam
Cross prestress wire to be connected, prestress wire is locked on jack fixed cross beam through right side loading crossbeam by anchorage,
Jack is located between right side loading crossbeam and jack fixed cross beam, as on the right side of jack pair, crossbeam is further applied load, left and right
Steel strand wires between crossbeam constantly shorten, and make left and right crossbeam produce symmetrical power to structure.
Spring fastening group 4 is formed by multiple rows of spring fastening laminating arrangement, different by the spring simulation for arranging different-stiffness
Soil layer type.This device is additionally provided with the side limit structure 6 for preventing the domain tunnel structure 7 from toppling, 6 one end of side limit structure
It is located on the column 1 of reaction frame, the other end is connected with domain tunnel structure 7, side limit structure 6 ensure that the peace of process of the test
Quan Xing.On column 1, crossbeam 3 can be adjusted the crossbeam 3 of reaction frame up and down；Jack 2 is hydraulic jack, very heavy
The Stress control end on top 2 is located at loading petrol station, and the flowline for loading petrol station is provided with pressure sensor, pressure sensor connection meter
Calculation machine, can measure pressure and its change of jack in real time, load and its change that as structure is subject to, spring fastening group 4
It is furnished with electron displacement meter, electron displacement meter connects computer, can measure in test deflection and its change of spring fastening in real time
Change, reflect the vertical displacement distribution of structure.
This device at the trial, domain tunnel structure 7 to be measured is placed in spring fastening group 4, multiple jack 2 is pushed up
Load(ing) point on domain tunnel structure, jack 2 and 4 collective effect of spring fastening group apply vertical force and are vertically loaded,
Pressure sensor on hydraulic jack connected pipes, by test pressure real-time Transmission to the computer for connecting, spring fastening group 4
On electron displacement meter send data to computer, for mechanics properties testing calculate analysis；Also can be by horizontal loading group
Part 5 applies side force carries out horizontal addload to domain tunnel structure 7.
Claims (9)
1. a kind of vertical load testing machine for domain tunnel structure, including the reaction frame being made up of column and crossbeam, its
It is characterised by, described reaction frame base is provided with spring fastening group, places domain tunnel to be measured in described spring fastening group
Road structure, described crossbeam bottom are provided with jack, and described jack upper end is fixed on crossbeam, and lower end withstands on domain tunnel
Load(ing) point in structure, the domain tunnel structure left and right sides are provided with horizontal charging assembly,
During test, jack and spring fastening group collective effect apply vertical force and are vertically loaded, and horizontal charging assembly applies
Side force carries out horizontal addload.
2. a kind of vertical load testing machine for domain tunnel structure according to claim 1, it is characterised in that institute
The spring fastening group that states is formed by multiple rows of spring fastening laminating arrangement.
3. a kind of vertical load testing machine for domain tunnel structure according to claim 2, it is characterised in that institute
The spring fastening group that states simulates different soil layer types by arranging the spring of different-stiffness.
4. a kind of vertical load testing machine for domain tunnel structure according to claim 1, it is characterised in that should
Device is additionally provided with the side limit structure for preventing the domain tunnel structure from toppling, and described side limit structure one end is located at reaction frame
Column on, the other end is connected with domain tunnel structure.
5. a kind of vertical load testing machine for domain tunnel structure according to claim 1, it is characterised in that institute
The horizontal charging assembly that states is made up of multigroup symmetrical tensioning self equilibrium systemses charger, along domain tunnel structure short transverse
It is uniformly distributed.
6. a kind of vertical load testing machine for domain tunnel structure according to claim 5, it is characterised in that institute
The tensioning self equilibrium systemses charger that states includes left and right loading crossbeam, jack, jack fixed cross beam, prestress wire
And anchorage, it is connected by prestress wire between left and right loading crossbeam, prestress wire passes through through right side loading crossbeam
Anchorage is locked on jack fixed cross beam, and jack is located between right side loading crossbeam and jack fixed cross beam.
7. a kind of vertical load testing machine for domain tunnel structure according to claim 1, it is characterised in that institute
On column, crossbeam can be adjusted the crossbeam of the reaction frame that states up and down.
8. a kind of vertical load testing machine for domain tunnel structure according to claim 1, it is characterised in that institute
The jack that states is hydraulic jack, and the Stress control end of jack is located at loading petrol station, and the flowline for loading petrol station is provided with
Pressure sensor, pressure sensor connect computer.
9. a kind of vertical load testing machine for domain tunnel structure according to claim 1, it is characterised in that institute
The spring fastening that states is assembled with electron displacement meter, and electron displacement meter connects computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840260.9A CN106501014A (en) | 2016-09-21 | 2016-09-21 | Vertical load testing machine for domain tunnel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840260.9A CN106501014A (en) | 2016-09-21 | 2016-09-21 | Vertical load testing machine for domain tunnel structure |
Publications (1)
| Publication Number | Publication Date |
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| CN106501014A true CN106501014A (en) | 2017-03-15 |
Family
ID=58290929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610840260.9A Pending CN106501014A (en) | 2016-09-21 | 2016-09-21 | Vertical load testing machine for domain tunnel structure |
Country Status (1)
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969933A (en) * | 2017-05-05 | 2017-07-21 | 华侨大学 | The mechanism for testing that immersed tube tunnel is deformed when a kind of unilateral passage catches fire |
| CN107421761A (en) * | 2017-07-26 | 2017-12-01 | 华侨大学 | The detection method and its device of immersed tube tunnel deformation and temperature in a kind of bilateral fire |
| CN107941594A (en) * | 2017-09-04 | 2018-04-20 | 中国矿业大学(北京) | A kind of multifunction test device for liner structure |
| CN108195530A (en) * | 2017-11-21 | 2018-06-22 | 中国石油化工股份有限公司 | A kind of packaged type reaction frame load testing machine |
| CN109374418A (en) * | 2018-09-20 | 2019-02-22 | 浙江大学 | Equivalent Elasticity boundary Lower chains and native tangential and normal direction drag test device |
| CN109406184A (en) * | 2018-11-29 | 2019-03-01 | 华侨大学 | A kind of single hole immersed tube tunnel top plate fire resistance experiment loading unit |
| CN109443930A (en) * | 2018-11-30 | 2019-03-08 | 西南交通大学 | A kind of shield tunnel segment lining structure longitudinal rigidity test device and method |
| CN109682693A (en) * | 2019-02-27 | 2019-04-26 | 沈阳众和检测有限公司 | Architectural vibration-insulation rubber tube tangential displacement test device |
| CN109682624A (en) * | 2018-12-25 | 2019-04-26 | 上海电气液压气动有限公司 | A kind of depth tunnel domain test method |
| CN109883846A (en) * | 2019-03-12 | 2019-06-14 | 华侨大学 | One kind being based on bridge immersed tube tunnel model three-dimensional loading test platform and test method |
| CN110220702A (en) * | 2019-07-23 | 2019-09-10 | 北京华横科技有限公司 | Class elastic foundation beam type internal force self-balancing jack static test bed |
| CN110470502A (en) * | 2019-09-18 | 2019-11-19 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Universal test device for the lifting bearing test of submersible carrier frame |
| CN114061997A (en) * | 2021-10-19 | 2022-02-18 | 南方电网科学研究院有限责任公司 | Power transmission tower section loading test device and method |
| CN114136678A (en) * | 2021-11-29 | 2022-03-04 | 中交二航局第二工程有限公司 | Hoisting equipment load test device and load test method |
| CN114136681A (en) * | 2021-11-29 | 2022-03-04 | 中交二航局第二工程有限公司 | Crane load test device and method |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969933A (en) * | 2017-05-05 | 2017-07-21 | 华侨大学 | The mechanism for testing that immersed tube tunnel is deformed when a kind of unilateral passage catches fire |
| CN107421761A (en) * | 2017-07-26 | 2017-12-01 | 华侨大学 | The detection method and its device of immersed tube tunnel deformation and temperature in a kind of bilateral fire |
| CN107941594A (en) * | 2017-09-04 | 2018-04-20 | 中国矿业大学(北京) | A kind of multifunction test device for liner structure |
| CN108195530A (en) * | 2017-11-21 | 2018-06-22 | 中国石油化工股份有限公司 | A kind of packaged type reaction frame load testing machine |
| CN109374418A (en) * | 2018-09-20 | 2019-02-22 | 浙江大学 | Equivalent Elasticity boundary Lower chains and native tangential and normal direction drag test device |
| CN109406184A (en) * | 2018-11-29 | 2019-03-01 | 华侨大学 | A kind of single hole immersed tube tunnel top plate fire resistance experiment loading unit |
| CN109406184B (en) * | 2018-11-29 | 2023-08-29 | 华侨大学 | Single-hole immersed tube tunnel roof fire resistance test loading device |
| CN109443930A (en) * | 2018-11-30 | 2019-03-08 | 西南交通大学 | A kind of shield tunnel segment lining structure longitudinal rigidity test device and method |
| CN109443930B (en) * | 2018-11-30 | 2024-02-13 | 西南交通大学 | Device and method for testing longitudinal rigidity of shield tunnel segment lining structure |
| CN109682624A (en) * | 2018-12-25 | 2019-04-26 | 上海电气液压气动有限公司 | A kind of depth tunnel domain test method |
| CN109682624B (en) * | 2018-12-25 | 2020-07-31 | 上海电气液压气动有限公司 | Deep tunnel whole ring test method |
| CN109682693A (en) * | 2019-02-27 | 2019-04-26 | 沈阳众和检测有限公司 | Architectural vibration-insulation rubber tube tangential displacement test device |
| CN109883846A (en) * | 2019-03-12 | 2019-06-14 | 华侨大学 | One kind being based on bridge immersed tube tunnel model three-dimensional loading test platform and test method |
| CN109883846B (en) * | 2019-03-12 | 2024-02-02 | 华侨大学 | Three-dimensional loading test platform and test method based on large bridge immersed tube tunnel model |
| CN110220702A (en) * | 2019-07-23 | 2019-09-10 | 北京华横科技有限公司 | Class elastic foundation beam type internal force self-balancing jack static test bed |
| CN110220702B (en) * | 2019-07-23 | 2024-04-16 | 北京华横科技有限公司 | Elastic foundation beam type internal force self-balancing jack static load test bed |
| CN110470502A (en) * | 2019-09-18 | 2019-11-19 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Universal test device for the lifting bearing test of submersible carrier frame |
| CN114061997A (en) * | 2021-10-19 | 2022-02-18 | 南方电网科学研究院有限责任公司 | Power transmission tower section loading test device and method |
| CN114061997B (en) * | 2021-10-19 | 2024-05-28 | 南方电网科学研究院有限责任公司 | Power transmission tower section loading test device and method |
| CN114136681A (en) * | 2021-11-29 | 2022-03-04 | 中交二航局第二工程有限公司 | Crane load test device and method |
| CN114136678A (en) * | 2021-11-29 | 2022-03-04 | 中交二航局第二工程有限公司 | Hoisting equipment load test device and load test method |
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Application publication date: 20170315 |