CN204630747U - The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device - Google Patents

The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device Download PDF

Info

Publication number
CN204630747U
CN204630747U CN201520188347.3U CN201520188347U CN204630747U CN 204630747 U CN204630747 U CN 204630747U CN 201520188347 U CN201520188347 U CN 201520188347U CN 204630747 U CN204630747 U CN 204630747U
Authority
CN
China
Prior art keywords
tunnel
liner
pad
composite ground
spring
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.)
Expired - Fee Related
Application number
CN201520188347.3U
Other languages
Chinese (zh)
Inventor
来弘鹏
谢永利
刘禹阳
康佐
宋维龙
王军琪
赖金星
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.)
Changan University
Original Assignee
Changan 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 Changan University filed Critical Changan University
Priority to CN201520188347.3U priority Critical patent/CN204630747U/en
Application granted granted Critical
Publication of CN204630747U publication Critical patent/CN204630747U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a kind of loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device, this equipment arranges tunnel-liner on displacement restriction panel, be disposed radially load maintainer at the outside surface of tunnel-liner, the other end of load maintainer is fixed on outer surrounding baffle, load maintainer is by pad, spring and hydraulic jack composition, pad arranges along the outer wall of tunnel-liner, spring has been disposed radially at pad outer wall, be connected with hydraulic jack by spring, hydraulic jack is arranged along the normal direction of tunnel-liner outside surface, and its cylinder barrel is fixed on the inwall of outer surrounding baffle, the utility model can well to different lining style, the different operating mode such as lining thickness and different stressing conditions carries out Mechanical Characters of Composite Ground simulation, numerical control hydraulic lifting jack is adopted to ensure that the size that lining cutting is stressed and locality specific in loading procedure, for late time data analysis and research offer convenience, can effectively simulation tunnel liner structure Mechanical Characters of Composite Ground change.

Description

The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device
Technical field
The utility model belongs to tunnel-liner indoor model simulation experiment device technical field, is specifically related to the test unit loading equipemtn of simulation tunnel liner structure Mechanical Characters of Composite Ground in a kind of test.
Background technology
Indoor model test is the important research means of civil engineering field all the time, the achievement using indoor model test to solve sciences problems in Tunnel Engineering also constantly increases, but in the research of tunnel lining structure Mechanical Characters of Composite Ground, the aspect technology such as tunnel surrounding primary stress field, tunnel excavation, supporting, deformation allowance and stress relief control that are limited to are difficult to fine solution, and the mechanical behavior achievement in research of tunnel lining structure easily produces relatively large deviation with actual conditions all the time.But along with the continuous appearance of length, large, dark Tunnel Engineering, as the max architecture thing in tunnel, the further investigation of tunnel lining structure mechanical behavior is very urgent.And in general tunnel-liner shop experiment, testing equipment is mainly model test box, lining cutting research is larger by shoulderbed effect, and the research error that the discreteness of country rock is brought fails to be solved very well all the time, not yet occur that a kind of equipment can avoid tunnel surrounding simulation error to study the Mechanical Characters of Composite Ground of liner structure at present.
Utility model content
In order to realize the simulation of tunnel lining structure Mechanical Characters of Composite Ground in indoor model test, it is simple that the utility model provides a kind of structure, can realize loading the precision of tunnel-liner, truly the loading equipemtn of the tunnel lining structure Mechanical Characters of Composite Ground simulation test device of the force and deformation of simulation tunnel liner structure.
The technical solution of the utility model arranges tunnel-liner on displacement restriction panel, and be disposed radially load maintainer at the outside surface of tunnel-liner, the other end of load maintainer is fixed on outer surrounding baffle;
Load maintainer is made up of pad, spring and hydraulic jack, pad arranges along the outer wall of tunnel-liner, spring has been disposed radially at pad outer wall, be connected with hydraulic jack by spring, hydraulic jack is arranged along the normal direction of tunnel-liner outside surface, and its cylinder barrel is fixed on the inwall of outer surrounding baffle.
The upper surface of above-mentioned displacement restriction panel is processed with the stopper slot for installing tunnel-liner, and the flute profile of stopper slot is identical with the profile of tunnel-liner.
Above-mentioned peripheral baffle inner wall is provided with strenthening member, described strenthening member is the reinforcing steel ring arranged along peripheral baffle inner wall circumference, reinforcing reinforcement steel ring being also provided with vertical extension, the spacing between a reinforcement and an adjacent reinforcement is 60 ~ 90cm.
An above-mentioned hydraulic jack is arranged along the outside surface normal direction of tunnel-liner.
The contact area of above-mentioned pad and lining cutting is 3 ~ 4 times of lifting jack termination area.
Above-mentioned spring is arranged on the middle part of pad, and described pad is arranged on the vertical medium position of tunnel-liner.
The outward flange of above-mentioned displacement restriction panel is fixed by being connected support and connection with between outer surrounding baffle.
The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device of the present utility model is loaded by hydraulic jack, outer surrounding baffle supporting, displacement restriction panel fixed Combination, after determining tunnel-liner periphery stressing conditions, achieve and the precision of tunnel-liner is loaded, can to different lining style, the different operating mode such as lining thickness and different stressing conditions carries out Mechanical Characters of Composite Ground simulation, the force and deformation of simulation tunnel liner structure well, be applicable to the liner structure of research vcehicular tunnel and railway tunnel at different class of loading, Mechanical Characters of Composite Ground under the different operating mode such as lining thickness and different lining styles, numerical control hydraulic lifting jack is distributed in the key position of tunnel-liner, regulate jack pressure can meet the change demand of lining cutting pressure under different operating mode, at key position, lining model is accurately loaded, for late time data analysis and research offer convenience, and stopper slot processed by displacement restriction panel, limit the displacement of tunnel-liner model bottom under acting by their periphery power, avoid the Unloading Effect because displacement produces, ensure that lining model loads accurately, structural design of the present utility model is simple, practical, easy to operate, can effectively simulation tunnel liner structure Mechanical Characters of Composite Ground change, and meet different lining style and thickness requirements, verify through test of many times, indoor model test requirement can be met.
Accompanying drawing explanation
Fig. 1 is the loading equipemtn structural representation of embodiment 1.
Fig. 2 is the structural representation of the load maintainer 2 of Fig. 1.
Fig. 3 is the structural representation of the strenthening member 6 of Fig. 1.
Embodiment
Now in conjunction with the accompanying drawings and embodiments the technical solution of the utility model is further described, but the utility model is not limited only to following enforcement situation.
Embodiment 1
As shown in Figure 1, the loading equipemtn of the tunnel lining structure Mechanical Characters of Composite Ground simulation test device of the present embodiment is connected and composed by displacement restriction panel 1, outer surrounding baffle 4, pad 2-1, spring 2-2, hydraulic jack 2-3, connection support 5, reinforcing steel ring 6-2 and reinforcement 6-1.
The displacement restriction panel 1 of the present embodiment is that a diameter is 150cm, thickness is the round plate of 3cm, stopper slot is processed with at the upper surface of displacement restriction panel 1, the groove depth of this stopper slot is 3cm, groove width is 6cm, flute profile is identical with the cross sectional shape of highway tunnel lining 3 and the profile of highway tunnel lining 3, can highway tunnel lining 3 be fixed in stopper slot, limit the displacement of tunnel-liner 3 bottom under acting by their periphery power, avoid the Unloading Effect because displacement produces, ensure that lining model loads accurately.The edge of this displacement restriction panel 1 is installed with threaded fastener and connects support 5, this connection support 5 is along the radial arrangement of tunnel-liner 3, and be circumferentially evenly distributed same, the other end of connection support 5 is fixed on outer surrounding baffle 4 base outside displacement restriction panel 1, displacement is limited panel 1 and fixes with outer surrounding baffle 4.The highway tunnel lining 3 of the present embodiment selects conventional model, and its outer contour is of a size of wide 1.18m, high 0.96m.The present embodiment is bonded with 15 pieces of steel pad 2-1 with seccotine on the outer wall of highway tunnel lining 3, the length of every block pad 2-1 is 30cm, wide is 10cm, thickness is 1cm, be fixed on the vertical middle part of highway tunnel lining 3, a cylindrical protrusions is processed with in the center of each pad 2-1, this cylindrical protrusions is set with the stainless steel spring 2-2 of high rigidity, guarantee that highway tunnel lining 3 is stressed incremental, avoid because the moment stressed excessive model distortion caused destroys, spring 2-2 extends along the outside surface normal direction of highway tunnel lining 3, hydraulic jack 2-3 is connected with by web member at the other end of spring 2-2, the other end by spring 2-2 is sleeved on web member, web member is fixed on the termination of hydraulic jack 2-3, ensure that spring 2-2 is reliably connected with hydraulic jack 2-3, this hydraulic jack 2-3 arranges along the outside surface normal direction of highway tunnel lining 3.Too small and produce stress concentration phenomenon in order to avoid loading contact area, warranty test is effective, guarantees that data are reliable, and the present embodiment selects the contact area of pad 2-1 and lining cutting to be 3 times of lifting jack termination area.The cylinder barrel of hydraulic jack 2-3 is fixedly mounted on by web member on the inwall of outer surrounding baffle 4, the outer surrounding baffle 4 of the present embodiment is an internal diameter is the Circular Plate of 200cm, it is highly 2cm, employing steel plate is made, hydraulic jack 2-3 is fixed on the position, the middle part of the side of outer surrounding baffle 4, see Fig. 2, hydraulic jack 2-3 and spring 2-2, pad 2-1 constitute the load maintainer 2 of the present embodiment, to highway tunnel lining 3 load application.
In order to strengthen the structural strength of outer surrounding baffle 4, the outer wall of surrounding baffle 4 is outside welded with strenthening member 6, see Fig. 3, the strenthening member 6 of the present embodiment is by reinforcing steel ring 6-2 and reinforcement 6-1, the reinforcing steel ring 6-2 of the present embodiment is the circular reinforcing bar being laid in differing heights respectively along the outer wall of outer surrounding baffle 4, it is respectively outside 1/3 of surrounding baffle 4 and the height and position of 2/3 years old, reinforcing steel ring 6-2 is welded with vertical reinforcement 6-1, reinforcement 6-1 equidistantly distributes along reinforcing steel ring 6-2, spacing between a reinforcement 6-1 and an adjacent reinforcement 6-1 is 60cm.
The loading equipemtn of the tunnel lining structure Mechanical Characters of Composite Ground simulation test device of the present embodiment need in use with the equipment such as model measurement instrument, lifting jack digital control instrument with the use of, its concrete step is:
Step one, selects displacement to limit panel 1 with reference to highway tunnel lining 3, and arranges the draw-in groove width consistent with lining thickness;
Step 2, displacement being limited panel 1, outer surrounding baffle 4 and hydraulic jack 2-3 is arranged on test platform panel, load key position according to the lining cutting that displacement restriction panel 1 has marked and hydraulic jack 2-3 is installed, guarantee that hydraulic jack 2-3 direction is consistent with the outside surface normal direction of highway lining cutting;
Step 3, transfer gantry is utilized to be placed on by highway tunnel lining 3 in the stopper slot of displacement restriction panel 1, check whether the bottom of highway tunnel lining 3 contacts with bottom panel completely, connect other testing elements on highway tunnel lining 3 and plate reading device, check and whether normally to measure the number of degrees, whether checkout element damages;
Step 4, is close to lining model outside surface by pad 2-1, and spring 2-2 is clipped between pad 2-1 and hydraulic jack 2-3, check whether the hydraulic tube of hydraulic jack 2-3 has damage, whether oil cylinder has leakage of oil, and whether junction is firm, guarantees to test personal security in hydraulic pressure increase process;
Step 5, opens testing tool, and test data makes zero, and lifting jack digital control instrument inputs each lifting jack goal pressure, opens model measurement instrument reading and the pressurization of lifting jack digital control instrument, on-test simultaneously.
Embodiment 2
The displacement restriction panel 1 of the present embodiment is that a diameter is 150cm, thickness is the round plate of 3cm, stopper slot is processed with at the upper surface of displacement restriction panel 1, the groove depth of this stopper slot is 4cm, groove width is 6cm, flute profile is identical with the cross sectional shape of railway tunnel lining 3 and the profile of railway tunnel lining 3, can railway tunnel lining 3 be fixed in stopper slot, limit the displacement of railway tunnel lining 3 bottom under acting by their periphery power.The edge of this displacement restriction panel 1 is installed with threaded fastener and connects support 5, this connection support 5 is along the radial arrangement of tunnel-liner 3, and be circumferentially evenly distributed same, the other end of connection support 5 is fixed on outer surrounding baffle 4 base outside displacement restriction panel 1, displacement is limited panel 1 and fixes with outer surrounding baffle 4.The railway tunnel lining 3 of the present embodiment selects conventional model, and its outer contour is of a size of wide 0.578m, high 0.595m.The outer wall of railway tunnel lining 3 is bonded with 13 pieces of steel pad 2-1 with seccotine, a cylindrical protrusions is processed with in the center of each pad 2-1, this cylindrical protrusions is set with the stainless steel spring 2-2 of high rigidity, spring 2-2 extends along the outside surface normal direction of railway tunnel lining 3, hydraulic jack 2-3 is connected with by web member at the other end of spring 2-2, this hydraulic jack 2-3 arranges along the outside surface normal direction of railway tunnel lining 3, and the contact area of pad 2-1 and lining cutting is 4 times of lifting jack termination area.The cylinder barrel of hydraulic jack 2-3 is fixedly mounted on by web member on the inwall of outer surrounding baffle 4, the outer surrounding baffle 4 of the present embodiment is an internal diameter is the Circular Plate of 180cm, it is highly 1.5cm, hydraulic jack 2-3 and spring 2-2, pad 2-1 constitute the load maintainer 2 of the present embodiment, to railway tunnel lining 3 load application.The strenthening member 6 of the present embodiment is by reinforcing steel ring 6-2 and reinforcement 6-1, the reinforcing steel ring 6-2 of the present embodiment is the circular reinforcing bar being laid in differing heights respectively along the outer wall of outer surrounding baffle 4, it is respectively outside 1/3 of surrounding baffle 4 and the height and position of 2/3 years old, reinforcing steel ring 6-2 is welded with vertical reinforcement 6-1, reinforcement 6-1 equidistantly distributes along reinforcing steel ring 6-2, and the spacing between a reinforcement 6-1 and an adjacent reinforcement 6-1 is 75cm.
Other parts and annexation, principle of work are all identical with embodiment 1.
Embodiment 3
The present embodiment is bonded with 18 pieces of steel pad 2-1 with seccotine on the outer wall of tunnel-liner 3, a cylindrical protrusions is processed with in the center of each pad 2-1, this cylindrical protrusions is set with the stainless steel spring 2-2 of high rigidity, spring 2-2 extends along the outside surface normal direction of railway tunnel lining 3, hydraulic jack 2-3 is connected with by web member at the other end of spring 2-2, this hydraulic jack 2-3 arranges along the outside surface normal direction of railway tunnel lining 3, and the contact area of pad 2-1 and lining cutting is 3.5 times of lifting jack termination area.The cylinder barrel of hydraulic jack 2-3 is fixedly mounted on by web member on the inwall of outer surrounding baffle 4, the outer surrounding baffle 4 of the present embodiment is an internal diameter is the Circular Plate of 180cm, it is highly 1.5cm, hydraulic jack 2-3 and spring 2-2, pad 2-1 constitute the load maintainer 2 of the present embodiment, to railway tunnel lining 3 load application.The strenthening member 6 of the present embodiment is by reinforcing steel ring 6-2 and reinforcement 6-1, the reinforcing steel ring 6-2 of the present embodiment is the circular reinforcing bar being laid in differing heights respectively along the outer wall of outer surrounding baffle 4, it is respectively outside 1/3 of surrounding baffle 4 and the height and position of 2/3 years old, reinforcing steel ring 6-2 is welded with vertical reinforcement 6-1, reinforcement 6-1 equidistantly distributes along reinforcing steel ring 6-2, and the spacing between a reinforcement 6-1 and an adjacent reinforcement 6-1 is 90cm.
Other parts and annexation, principle of work are all identical with embodiment 1.
The connecting-piece structures do not described in detail in above-described embodiment etc. all belong to routine techniques, and it specifically implements to be selected according to practical application by those skilled in the art.

Claims (6)

1. the loading equipemtn of a tunnel lining structure Mechanical Characters of Composite Ground simulation test device, it is characterized in that: in displacement restriction panel (1), tunnel-liner (3) is set, be disposed radially load maintainer (2) at the outside surface of tunnel-liner (3), the other end of load maintainer (2) is fixed on outer surrounding baffle (4);
Described load maintainer (2) is made up of pad (2-1), spring (2-2) and hydraulic jack (2-3), pad (2-1) arranges along the outer wall of tunnel-liner (3), spring (2-2) has been disposed radially at pad (2-1) outer wall, be connected with hydraulic jack (2-3) by spring (2-2), hydraulic jack (2-3) is arranged along the normal direction of tunnel-liner (3) outside surface, and its cylinder barrel is fixed on the inwall of outer surrounding baffle (4).
2. the loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device according to claim 1, it is characterized in that: the upper surface of described displacement restriction panel (1) is processed with the stopper slot for installing tunnel-liner (3), and the flute profile of stopper slot is identical with the profile of tunnel-liner (3).
3. the loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device according to claim 1, it is characterized in that: described outer surrounding baffle (4) inwall is provided with strenthening member (6), described strenthening member (6) is the reinforcing steel ring (6-2) arranged along outer surrounding baffle (4) inwall circumference, reinforcing the reinforcement (6-1) steel ring (6-2) being also provided with vertical extension, the spacing between a reinforcement (6-1) and an adjacent reinforcement (6-1) is 60 ~ 90cm.
4. the loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device according to claim 1, is characterized in that: described pad (2-1) and the contact area of lining cutting are 3 ~ 4 times of lifting jack termination area.
5. the loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device according to claim 1, it is characterized in that: described spring (2-2) is arranged on the middle part of pad (2-1), described pad (2-1) is arranged on the vertical medium position of tunnel-liner (3).
6. the loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device according to claim 1, is characterized in that: the outward flange of described displacement restriction panel (1) supports (5) and is connected and fixed with passing through between outer surrounding baffle (4) to be connected.
CN201520188347.3U 2015-03-31 2015-03-31 The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device Expired - Fee Related CN204630747U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520188347.3U CN204630747U (en) 2015-03-31 2015-03-31 The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520188347.3U CN204630747U (en) 2015-03-31 2015-03-31 The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device

Publications (1)

Publication Number Publication Date
CN204630747U true CN204630747U (en) 2015-09-09

Family

ID=54049764

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520188347.3U Expired - Fee Related CN204630747U (en) 2015-03-31 2015-03-31 The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device

Country Status (1)

Country Link
CN (1) CN204630747U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104748993A (en) * 2015-03-31 2015-07-01 长安大学 Load equipment of tunnel lining structural mechanics property simulation test device
CN106501014A (en) * 2016-09-21 2017-03-15 同济大学 Vertical load testing machine for domain tunnel structure
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104748993A (en) * 2015-03-31 2015-07-01 长安大学 Load equipment of tunnel lining structural mechanics property simulation test device
CN106501014A (en) * 2016-09-21 2017-03-15 同济大学 Vertical load testing machine for domain tunnel structure
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

Similar Documents

Publication Publication Date Title
CN104748993A (en) Load equipment of tunnel lining structural mechanics property simulation test device
CN204630747U (en) The loading equipemtn of tunnel lining structure Mechanical Characters of Composite Ground simulation test device
Molins et al. Experimental and analytical study of the structural response of segmental tunnel linings based on an in situ loading test.: Part 1: Test configuration and execution
Barla et al. Analysis of the behaviour of a yield-control support system in squeezing rock
CN203465148U (en) Loading device for tunnel lining full-ring structure test
Chen et al. Uplift capacity of suction caissons under sustained and cyclic loading in soft clay
CN105588802B (en) It is a kind of for simulating the three-dimensional experiment system and experimental method of roadway surrounding rock plastic zone
CN106153327B (en) A kind of TBM inclined shaft shield duct piece load testing machine and test method
Regier et al. Laboratory study on the behavior of a horizontal-ellipse culvert during service and ultimate load testing
CN205246454U (en) A three -dimensional experimental system for simulating tunnel country rock plastic range
CN103236207B (en) High-accuracy landslide physical model experiment platform
CN102866070B (en) Loading method for bearing strength test for secondary lining concrete structure of tunnel
CN106338440B (en) The true and false three axis material properties of rock test device of one kind and its method
CN104034306A (en) Experimental box for testing local subsidence of underlying soil as well as liner deformation of refuse landfill
CN103471796A (en) Tunnel cast-in-place concrete lining anti-seismic property testing method
CN109269900A (en) A kind of stratum simulation and load testing machine for polycyclic shield tunnel construction
Marwan et al. Structural forces in segmental linings: process-oriented tunnel advance simulations vs. conventional structural analysis
CN208547543U (en) Tunnel threedimensional model bracket loading test platform
CN105510154A (en) Device for measuring shearing strength index of rock-soil specimen and measuring method
CN203535014U (en) Asphalt mixture acoustic emission tester
CN103835319B (en) The real stake test method of on-the-spot Observable under concrete expansion dish demifacet stake pressured state
Zhao et al. Buckling failure analysis of truck mounted concrete pump's retractable outrigger
CN104458455A (en) Spatial tower leg structure testing method of narrow-based power transmission steel pipe tower
CN109596443B (en) Underground test groove capable of being used for various soil tests
CN103575528A (en) Self-balancing counter-force core tube and shield segment testing machine

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150909

Termination date: 20160331