CN106501014A - Vertical load testing machine for domain tunnel structure - Google Patents

Vertical load testing machine for domain tunnel structure Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
tunnel structure
jack
domain tunnel
crossbeam
domain
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610840260.9A
Other languages
Chinese (zh)
Inventor
柳献
蒋首超
梁霄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tongji University
Original Assignee
Tongji University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tongji University filed Critical Tongji University
Priority to CN201610840260.9A priority Critical patent/CN106501014A/en
Publication of CN106501014A publication Critical patent/CN106501014A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/007Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing

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

Vertical load testing machine for domain tunnel structure
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.
CN201610840260.9A 2016-09-21 2016-09-21 Vertical load testing machine for domain tunnel structure Pending CN106501014A (en)

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
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)

Country Link
CN (1) CN106501014A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2090835U (en) * 1991-02-06 1991-12-18 徐州市建筑工程研究所 Loading device for testing vertical bearing capacity of single pile
JPH0743262A (en) * 1993-07-29 1995-02-14 Kumagai Gumi Co Ltd Method for identifying spring water point in image analysis of tunnel face
CN1490441A (en) * 2003-08-19 2004-04-21 陈玉林 Producing process for bamboo pulp viscose filament
CN101403645A (en) * 2008-11-12 2009-04-08 西南交通大学 Hydraulic pressure and soil pressure independently loaded shield tunneling structure prototype experiment apparatus
CN103033374A (en) * 2011-09-29 2013-04-10 同济大学 Test device of vertical structure model of shield tunnel
CN203275106U (en) * 2013-05-23 2013-11-06 西南交通大学 Single /double layer lining structure prototype test apparatus of shield tunnel
CN104533470A (en) * 2014-11-03 2015-04-22 同济大学 Standing type mechanical loading device for three-ring prototype irregular shield segment
CN204630747U (en) * 2015-03-31 2015-09-09 长安大学 The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device
CN204731039U (en) * 2015-06-08 2015-10-28 安徽理工大学 A kind of test-bed being suitable for the simulation of mine laneway pucking

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2090835U (en) * 1991-02-06 1991-12-18 徐州市建筑工程研究所 Loading device for testing vertical bearing capacity of single pile
JPH0743262A (en) * 1993-07-29 1995-02-14 Kumagai Gumi Co Ltd Method for identifying spring water point in image analysis of tunnel face
CN1490441A (en) * 2003-08-19 2004-04-21 陈玉林 Producing process for bamboo pulp viscose filament
CN101403645A (en) * 2008-11-12 2009-04-08 西南交通大学 Hydraulic pressure and soil pressure independently loaded shield tunneling structure prototype experiment apparatus
CN103033374A (en) * 2011-09-29 2013-04-10 同济大学 Test device of vertical structure model of shield tunnel
CN203275106U (en) * 2013-05-23 2013-11-06 西南交通大学 Single /double layer lining structure prototype test apparatus of shield tunnel
CN104533470A (en) * 2014-11-03 2015-04-22 同济大学 Standing type mechanical loading device for three-ring prototype irregular shield segment
CN204630747U (en) * 2015-03-31 2015-09-09 长安大学 The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device
CN204731039U (en) * 2015-06-08 2015-10-28 安徽理工大学 A kind of test-bed being suitable for the simulation of mine laneway pucking

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱雁飞等: "异型管片综合试验平台研制与应用", 《现代隧道技术》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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

Similar Documents

Publication Publication Date Title
CN106501014A (en) Vertical load testing machine for domain tunnel structure
CN102621010B (en) Multifunctional testing machine for deep surrounding rock anchoring performance
CN110593953B (en) Device and method for testing impact resistance characteristic of roadway support system under simulated rock burst condition
CN104975621B (en) A kind of many anchored end retaining wall indoor model test device and test method
CN101403645B (en) Hydraulic pressure and soil pressure independently loaded shield tunneling structure prototype experiment apparatus
CN103471941B (en) Anchor rod shock resistance simulation test system
CN110780056A (en) Test device for simulating movable fault to research on tunnel damage mechanism and using method
CN102051858B (en) Jack loading triangular truss hanging basket and load test construction method thereof
KR101166139B1 (en) Apparatus and method for horizontal load test of strip foundation
CN109208488B (en) High pier pre-pressing device with high combined weight at high altitude and construction method thereof
CN103033385A (en) Device and method of self-balancing portable automatic control shear wall horizontal vertical load common effect performance test
CN107831009A (en) Coal mine roadway side portion's anchor pole or anchorage cable anchoring analogue experiment installation and its experimental method
CN104763001B (en) A kind of assay device suitable in anchorage cable anchoring section creep properties and test method
CN212340590U (en) Device for simulating vibration load of tunnel train
CN107782606A (en) A kind of experimental rig and its application method of the local buckling behavior of double steel plate combined concrete shear wall steel plate
CN106680085A (en) System and method for testing aging characteristics of bolt system on basis of creep testing machine
CN108489748A (en) A kind of experimental rig and test method for continuous bridge long period Study of Cyclic Loading
CN205642868U (en) Two -way load combined action capability test device of herringbone post node
CN107576569A (en) A kind of loading device for testing and test method that edge constraint is realized to board member
CN102995669A (en) Large-tonnage foundation pile uplift-resistant static test connection device, loading counter-force system and method
CN208748712U (en) A kind of test pile vertical compression detection device
CN103321259A (en) Testing system for anchor network reinforcement of underground engineering broken surrounding rock
CN109060512A (en) A kind of assembly superposed type piping lane Quintic system load testing machine and test method
CN103226082A (en) Test device simulating horizontal uniform load and test method
CN201289410Y (en) Equipment for testing prototype shield tunnel structure loading soil pressure and water pressure independently

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170315

RJ01 Rejection of invention patent application after publication