CN109696400A - A kind of test device of Tunnel and soil property country rock adhesion strength - Google Patents

A kind of test device of Tunnel and soil property country rock adhesion strength Download PDF

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Publication number
CN109696400A
CN109696400A CN201910125982.XA CN201910125982A CN109696400A CN 109696400 A CN109696400 A CN 109696400A CN 201910125982 A CN201910125982 A CN 201910125982A CN 109696400 A CN109696400 A CN 109696400A
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China
Prior art keywords
reaction frame
loading device
tangential
axial
tunnel
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CN109696400B (en
Inventor
陈孙恩
郭平
谢卓吾
屈瀑
郭霖
李东顺
赵庆伦
蒲永
管国梁
崔敬轩
李志伟
王哲
王佳戈
周昆
陈鸿
李亮亮
张成勇
梁振
林琳
赵伟
秦召
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Xian University of Science and Technology
China Railway Tunnel Group Erchu Co Ltd
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Xian University of Science and Technology
China Railway Tunnel Group Erchu Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00Investigating materials by mechanical methods
    • G01N19/04Measuring adhesive force between materials, e.g. of sealing tape, of coating

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention belongs to Tunnel Engineering test equipment technical field more particularly to the test devices of a kind of Tunnel and soil property country rock adhesion strength.The technical solution that the present invention passes through pedestal, three reaction frames and the tangential arch pressure loading device being separately fixed on three reaction frames, axial arch pressure loading device, face force loading device and the cylinder oil jack power source with dial gauge, control gunite concrete and arch different loading methods respectively test tangential adhesive strength and complex stress condition lower arch frame mechanical behavior between gunite concrete and arch.The practical mechanical state that can be good at simulating large cross-section tunnel preliminary bracing and country rock, accurately tests gunite concrete, steel arch-shelf and the practical mechanical state of soil body cohesive force.

Description

A kind of test device of Tunnel and soil property country rock adhesion strength
Technical field
The invention belongs to Tunnel Engineering test equipment technical field more particularly to a kind of Tunnels and soil property country rock The test device of adhesion strength.
Background technique
The adhesive property of preliminary bracing and country rock that gunite concrete is constituted with steel arch-shelf is served as a contrast in New Austrian Tunneling Method work progress Build one of the deciding factor of structural stress state.Measure is connected currently, being tested between gunite concrete and arch in specification, mostly Normal direction anti-pulling empirical value, but this is presented tangential Nian Jie stress with practical preliminary bracing with country rock more and is not inconsistent.Therefore, it is necessary to A kind of test device that can test gunite concrete, steel arch-shelf and the practical mechanical state of soil body cohesive force.
Summary of the invention
The present invention provides the test device of a kind of Tunnel and soil property country rock adhesion strength, and it is an object of the present invention to provide A kind of test device that can accurately test gunite concrete, steel arch-shelf and the practical mechanical state of soil body cohesive force.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of test device of Tunnel and soil property country rock adhesion strength, comprising:
Pedestal, the storage box that there is open topped to be used to carry determinand for upper surface, storage box lateral wall are connected with four Pillar, four pillars are divided into two groups, two groups of pillar relative symmetry settings;
Three reaction frames, two of them are connected on one group of pillar, another is connected on another group of pillar;
Three groups of loading devices are connected on three reaction frames;
One group of driving device is separately connected, the driving for loading device with three groups of loading devices.
It further include displacement tester and control device;The displacement tester is contacted with determinand;The control Device processed is electrically connected to the drive.
The displacement tester is miniature displacement sensor.
Horizontal connection has support rail to four pillars respectively between adjacent two pillars.
The reaction frame includes tangential reaction frame, axial reaction frame and face power reaction frame;Reaction frame includes tangential counter-force Frame, axial reaction frame and face power reaction frame are flat " u "-shaped;The tangential reaction frame and axial reaction frame are connected horizontally on The " u "-shaped mouth of the lateral surface of one group of pillar, tangential reaction frame and axial reaction frame is inwardly;Tangential reaction frame " u "-shaped bottom edge and branch The distance of column is less than axial reaction frame " u "-shaped bottom edge at a distance from pillar, and the face power reaction frame is connected horizontally on another group The lateral surface of pillar, the " u "-shaped mouth of face power reaction frame is inwardly.
The lower surface on the tangential reaction frame " u "-shaped bottom edge is vertically connected with tangential arch pressure loading device, described The medial surface horizontal connection on axial reaction frame " u "-shaped bottom edge have axial arch pressure loading device, the face power reaction frame The lower surface on " u "-shaped bottom edge is connected with face force loading device, and the movable end of the face force loading device is connected with load plate.
Tangential arch pressure loading device, axial arch pressure loading device and the face force loading device is hydraulic Jack;The pedestal of hydraulic jack is respectively perpendicular to tangential reaction frame, axial reaction frame is fixedly connected with face power reaction frame.
It is described there are three the tangential arch pressure loading device and axial arch pressure loading device are separately connected There are two the connections of face force loading device;The tangential arch pressure loading device of described three and three axial arch pressure-loaded dresses It sets and is divided into three groups, every group includes a tangential arch pressure loading device and an axial arch pressure loading device, every group Tangential arch pressure loading device and axial arch pressure loading device are mutually connected vertically and axial line intersects.
The tangential arch pressure loading device of described three and three axial arch pressure loading device difference spacing are identical Be connected on tangential reaction frame and axial reaction frame.
The driving device is oil cylinder and hydraulic jack power source with dial gauge, is filled by hydraulic tube and load It sets connection and provides power for loading device.
The utility model has the advantages that
The technical side that the present invention is organically combined by pedestal, three reaction frames, three groups of loading devices and one group of driving device Case controls gunite concrete and arch different loading methods respectively, test between gunite concrete and arch tangential adhesive strength and Complex stress condition lower arch frame mechanical behavior.It can be good at simulating the practical mechanics shape of large cross-section tunnel preliminary bracing and country rock State.Gunite concrete, steel arch-shelf and the practical mechanical state of soil body cohesive force can accurately be tested.
The above description is only an overview of the technical scheme of the present invention, in order to better understand technology hand of the invention Section, and can be implemented in accordance with the contents of the specification, and with presently preferred embodiments of the present invention and attached drawing be cooperated to be described in detail such as below Afterwards.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.
Fig. 1 is schematic structural view of the invention;
Fig. 2 is that the present invention places arch and loading device connection schematic diagram;
Fig. 3 is the status diagram of the invention sprayed after the completion of concrete, experiment.
In figure, 1- pedestal;2- has the oil cylinder and hydraulic jack power source of dial gauge;3- storage box;4- pillar;5- branch Support cross bar;The tangential reaction frame of 6-;7- axial direction reaction frame;The face 8- power reaction frame;The tangential arch pressure loading device of 9-;10- is axial Arch pressure loading device;The face 11- force loading device;12- load plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
Embodiment one:
A kind of test device of Tunnel and soil property country rock adhesion strength according to shown in Fig. 1-3, comprising:
Pedestal 1, the storage box 3 that there is open topped to be used to carry determinand for upper surface, 3 lateral wall of storage box are connected with four Root pillar 4, four pillars 4 are divided into two groups, two groups of 4 relative symmetry of pillar settings;
Three reaction frames, two of them are connected on one group of pillar 4, another is connected on another group of pillar 4;
Three groups of loading devices are connected on three reaction frames;
One group of driving device is separately connected, the driving for loading device with three groups of loading devices.
In actual use, closely knit soil is filled in storage box 3 first, steel arch-shelf is then placed on closely knit soil and is sprayed The side of the concrete sprayed and three groups of loading device relative edges are carried out cutting arrangement, concrete to be sprayed by concrete After solidification, coupling load is carried out using concrete of the loading device to solidification, tests its stress-strain relation.In practical application When, the present invention can be to only loading the test of steel arch-shelf, only load the actual test of concrete and be loaded with the mixed of steel arch-shelf The load of the different modes such as solidifying soil is tested.The present invention can test one, two, three arches there are when stress it is special Sign.It is steel plate that the storage box 3 of pedestal 1, which is by bottom surface, in the present embodiment, surrounding I-steel surrounds, and pillar 4 also uses I-shaped Steel ensure that intensity needs when present invention test;What three reaction frames in the present embodiment were all made of is steel arch, is being had Body is in application, the reaction frame of other materials can also be used, as long as meeting the intensity requirement of test.
The present invention is tested between gunite concrete and arch by control gunite concrete and arch different loading methods respectively Tangential adhesive strength and complex stress condition lower arch frame mechanical behavior.It can be very good simulation large cross-section tunnel preliminary bracing and enclose The practical mechanical state of rock.Gunite concrete, steel arch-shelf and the practical mechanical state of soil body cohesive force can accurately be surveyed Examination.
Embodiment two:
A kind of test device of Tunnel and soil property country rock adhesion strength according to shown in Fig. 1-3, with embodiment One the difference is that: further include displacement tester and control device;The displacement tester is contacted with determinand; The control device is electrically connected to the drive.
Preferably the displacement tester is miniature displacement sensor.
In actual use, closely knit soil is filled in storage box 3 first, then places miniature displacement sensing on closely knit soil Device, then the injection of concrete is carried out, it is tested after concrete setting.The correlation of displacement is measured by miniature displacement sensor The data of data, acquisition are then forwarded to control device, realize the control of loading force.Soil and concrete handover during the work time The miniature displacement sensor of interfacial contact and the setting of control device can accurately test out the related data of concrete.
Embodiment three:
A kind of test device of Tunnel and soil property country rock adhesion strength according to shown in Fig. 1-3, with embodiment One the difference is that: horizontal connection has support rail 5 to four pillars 4 respectively between adjacent two pillars 4.
In actual use, technical solution of the present invention, the intensity requirement of pedestal 1 when ensure that test, it is ensured that test number According to accuracy.
Example IV:
A kind of test device of Tunnel and soil property country rock adhesion strength according to shown in Fig. 1-3, with embodiment One the difference is that: the reaction frame includes tangential reaction frame 6, axial reaction frame 7 and face power reaction frame 8;Reaction frame It is flat " u "-shaped including tangential reaction frame 6, axial reaction frame 7 and face power reaction frame 8;The tangential reaction frame 6 and axial direction Reaction frame 7 is connected horizontally on the lateral surface of one group of pillar 4, and the " u "-shaped mouth of tangential reaction frame 6 and axial reaction frame 7 is inwardly;Tangentially 6 " u "-shaped bottom edge of reaction frame is less than 7 " u "-shaped bottom edge of axial reaction frame at a distance from pillar 4 at a distance from pillar 4, the face power Reaction frame 8 is connected horizontally on the lateral surface of another group of pillar 4, and the " u "-shaped mouth of face power reaction frame 8 is inwardly.
In actual use, the technical solution of the present embodiment can carry out face power load, tangential and axial to concrete The load of resultant force, so that testing the practical circumstances of the practical mechanical state closer to large cross-section tunnel preliminary bracing and country rock.
Embodiment five:
A kind of test device of Tunnel and soil property country rock adhesion strength according to shown in Fig. 1-3, with embodiment Four the difference is that: the lower surface on the 6 " u "-shaped bottom edge of tangential reaction frame is vertically connected with tangential arch pressure-loaded The medial surface horizontal connection of device 9, the 7 " u "-shaped bottom edge of axial reaction frame has axial arch pressure loading device 10, described The lower surface on 8 " u "-shaped bottom edge of face power reaction frame be connected with face force loading device 11, the activity of the face force loading device 11 End is connected with load plate 12.
The preferably tangential arch pressure loading device 9, axial arch pressure loading device 10 and the load of face power Device 11 is hydraulic jack;The pedestal of hydraulic jack is respectively perpendicular to tangential reaction frame 6, axial reaction frame 7 and face power Reaction frame 8 is fixedly connected.
For load plate 12 in the present embodiment using I-steel, the use of I-steel is not only able to satisfy test needs, but also energy Enough save the costs.
In actual use, pass through the common of tangential arch pressure loading device 9 and axial arch pressure loading device 10 Under effect, the power of different angle can be applied to concrete side, face force loading device 11 is loaded as single power in downward direction, So that the data of test are more scientific.
Embodiment six:
A kind of test device of Tunnel and soil property country rock adhesion strength according to shown in Fig. 1-3, with embodiment Five the difference is that: the tangential arch pressure loading device 9 and axial arch pressure loading device 10 are separately connected There are three, there are two the connections of face force loading device 11;The tangential arch pressure loading device 9 of described three and three axis It is divided into three groups to arch pressure loading device 10, every group includes a tangential arch pressure loading device 9 and an axial arch Pressure loading device 10, every group of tangential arch pressure loading device 9 and axial 10 company of being mutually perpendicular to of arch pressure loading device It connects and axial line intersects.
Preferably three tangential arch pressure loading devices 9 and three axial arch pressure loading devices 10 divide Other spacing is identical to be connected on tangential reaction frame 6 and axial reaction frame 7.
In actual use, the design of the technical program can make the data of test more accurate.
Embodiment seven:
A kind of test device of Tunnel and soil property country rock adhesion strength according to shown in Fig. 1-3, with embodiment Five the difference is that: the driving device is oil cylinder and hydraulic jack power source 2 with dial gauge, by hydraulic Pipe connect with loading device and provides power for loading device.
In actual use, the design of the oil cylinder with dial gauge enables the operator of experiment to grasp test at any time The power actual size loaded in the process is analyzed convenient for the record of test data and subsequent data.
In conclusion the present invention passes through pedestal, three reaction frames and the tangential arch being separately fixed on three reaction frames Pressure loading device, axial arch pressure loading device, face force loading device and cylinder oil with dial gauge is very heavy pushes The technical solution in power source controls gunite concrete and arch different loading methods respectively, tests between gunite concrete and arch and cuts To adhesive strength and complex stress condition lower arch frame mechanical behavior.It can be good at simulating large cross-section tunnel preliminary bracing and country rock Practical mechanical state, gunite concrete, steel arch-shelf and the practical mechanical state of soil body cohesive force are accurately tested.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In the absence of conflict, those skilled in the art can according to the actual situation will be relevant in above-mentioned each example Technical characteristic is combined with each other, and to reach corresponding technical effect, will not repeat them here particularly for various combined situations.
The above, only presently preferred embodiments of the present invention, the present invention be not intended to be limited to it is shown in this article this A little embodiments, and it is to fit to the widest scope consistent with principles disclosed herein and novel features.According to this hair Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, still fall within the technology of the present invention In the range of scheme.

Claims (10)

1. the test device of a kind of Tunnel and soil property country rock adhesion strength characterized by comprising
Pedestal (1), the storage box (3) that there is open topped to be used to carry determinand for upper surface, storage box (3) lateral wall are connected with Four pillars (4), four pillars (4) are divided into two groups, two groups of pillar (4) relative symmetry settings;
Three reaction frames, two of them are connected on one group of pillar (4), another is connected on another group of pillar (4);
Three groups of loading devices are connected on three reaction frames;
One group of driving device is separately connected, the driving for loading device with three groups of loading devices.
2. a kind of test device of Tunnel and soil property country rock adhesion strength as described in claim 1, feature exist In: it further include displacement tester and control device;The displacement tester is contacted with determinand;The control device It is electrically connected to the drive.
3. a kind of test device of Tunnel and soil property country rock adhesion strength as claimed in claim 2, feature exist In: the displacement tester is miniature displacement sensor.
4. a kind of test device of Tunnel and soil property country rock adhesion strength as described in claim 1, feature exist In: horizontal connection has support rail (5) to four pillars (4) respectively between adjacent two pillars (4).
5. a kind of test device of Tunnel and soil property country rock adhesion strength as described in claim 1, feature exist In: the reaction frame includes tangential reaction frame (6), axial reaction frame (7) and face power reaction frame (8);Reaction frame includes tangential Reaction frame (6), axial reaction frame (7) and face power reaction frame (8) are flat " u "-shaped;The tangential reaction frame (6) and axial direction Reaction frame (7) is connected horizontally on the lateral surface of one group of pillar (4), the " u "-shaped mouth of tangential reaction frame (6) and axial reaction frame (7) Inwardly;Tangential reaction frame (6) " u "-shaped bottom edge is less than axial reaction frame (7) " u "-shaped bottom edge and pillar (4) at a distance from pillar (4) Distance, the face power reaction frame (8) is connected horizontally on the lateral surface of another group of pillar (4), " U " of face power reaction frame (8) Shape mouth is inwardly.
6. a kind of test device of Tunnel and soil property country rock adhesion strength as claimed in claim 5, feature exist In: the lower surface on described tangential reaction frame (6) the " u "-shaped bottom edge is vertically connected with tangential arch pressure loading device (9), described The medial surface horizontal connection on axial reaction frame (7) " u "-shaped bottom edge have axial arch pressure loading device (10), the face power The lower surface on reaction frame (8) " u "-shaped bottom edge is connected with face force loading device (11), the activity of the face force loading device (11) End is connected with load plate (12).
7. a kind of test device of Tunnel and soil property country rock adhesion strength as claimed in claim 6, feature exist In: tangential arch pressure loading device (9), axial arch pressure loading device (10) and the face force loading device (11) is For hydraulic jack;The pedestal of hydraulic jack is respectively perpendicular to tangential reaction frame (6), axial reaction frame (7) and face power counter-force Frame (8) is fixedly connected.
8. a kind of test device of Tunnel and soil property country rock adhesion strength as claimed in claim 7, feature exist In: it is described there are three the tangential arch pressure loading device (9) and axial direction arch pressure loading device (10) is separately connected Face force loading device (11) connection there are two;The tangential arch pressure loading device (9) of described three and three axial arches Pressure loading device (10) is divided into three groups, and every group includes a tangential arch pressure loading device (9) and an axial arch pressure Force loading device (10), every group of tangential arch pressure loading device (9) and axial arch pressure loading device (10) are mutually hung down It is direct-connected connect and axial line intersect.
9. a kind of test device of Tunnel and soil property country rock adhesion strength as claimed in claim 8, feature exist In: the tangential arch pressure loading device (9) of described three and three axial arch pressure loading devices (10) difference spacing phases Same is connected on tangential reaction frame (6) and axial reaction frame (7).
10. a kind of test device of Tunnel and soil property country rock adhesion strength as described in claim 1, feature exist In: the driving device is oil cylinder and hydraulic jack power source (2) with dial gauge, passes through hydraulic tube and loading device It connects and provides power for loading device.
CN201910125982.XA 2019-02-20 2019-02-20 Tunnel preliminary bracing and soil property surrounding rock bonding strength's testing arrangement Active CN109696400B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111796081A (en) * 2020-07-09 2020-10-20 山东科技大学 Temperature-adjustable base sprayed concrete performance testing device, method and system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11153537A (en) * 1997-11-19 1999-06-08 Nishimatsu Constr Co Ltd Method and machine for test of adhesion
CN203249855U (en) * 2013-05-17 2013-10-23 中国科学院武汉岩土力学研究所 On-site measuring device for measuring adhesion strength of contact surfaces of rock and spray concrete
JP2013257169A (en) * 2012-06-11 2013-12-26 Nippon Steel & Sumitomo Metal Method of measuring hot adhesive strength of monolithic refractory
CN107238568A (en) * 2017-03-31 2017-10-10 浙江大学 Method of testing and loading device based on corrosion and the armored concrete bond-slip properties of fatigue load coupling influence
CN209690147U (en) * 2019-02-20 2019-11-26 中铁隧道集团二处有限公司 A kind of test device of Tunnel and soil property country rock adhesion strength

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11153537A (en) * 1997-11-19 1999-06-08 Nishimatsu Constr Co Ltd Method and machine for test of adhesion
JP2013257169A (en) * 2012-06-11 2013-12-26 Nippon Steel & Sumitomo Metal Method of measuring hot adhesive strength of monolithic refractory
CN203249855U (en) * 2013-05-17 2013-10-23 中国科学院武汉岩土力学研究所 On-site measuring device for measuring adhesion strength of contact surfaces of rock and spray concrete
CN107238568A (en) * 2017-03-31 2017-10-10 浙江大学 Method of testing and loading device based on corrosion and the armored concrete bond-slip properties of fatigue load coupling influence
CN209690147U (en) * 2019-02-20 2019-11-26 中铁隧道集团二处有限公司 A kind of test device of Tunnel and soil property country rock adhesion strength

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111796081A (en) * 2020-07-09 2020-10-20 山东科技大学 Temperature-adjustable base sprayed concrete performance testing device, method and system

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