CN207585937U - A kind of experimental rig of the horizontal loading of tunnel lining structure - Google Patents

A kind of experimental rig of the horizontal loading of tunnel lining structure Download PDF

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Publication number
CN207585937U
CN207585937U CN201721195864.9U CN201721195864U CN207585937U CN 207585937 U CN207585937 U CN 207585937U CN 201721195864 U CN201721195864 U CN 201721195864U CN 207585937 U CN207585937 U CN 207585937U
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CN
China
Prior art keywords
profile steel
component
billet
steel
liner
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
CN201721195864.9U
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Chinese (zh)
Inventor
任志华
张森
文竟舟
丁祖德
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YUNNAN HIGHWAY SCIENCE TECHNOLOGY RESEARCH INSTITUTE
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YUNNAN HIGHWAY SCIENCE TECHNOLOGY RESEARCH INSTITUTE
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Priority to CN201721195864.9U priority Critical patent/CN207585937U/en
Application granted granted Critical
Publication of CN207585937U publication Critical patent/CN207585937U/en
Expired - Fee Related legal-status Critical Current
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Abstract

A kind of experimental rig of the horizontal loading of tunnel lining structure, including steel frame component, the liner structure for being embedded with testing element, Loading Control equipment and monitoring instrument;Steel frame component is by being arranged on liner structure (14) outer surface and symmetrical 13 H profile steel structure components are formed by connecting by connecting plate (13) and bolt (12);The centre of the H profile steel side of 9 H profile steel structure components is inherently placed in the jack (7) on the first billet (6), the top of jack (7) is equipped with the second billet (8), and the second billet (8) is equipped with rubber spacer (9);The billet (10) of the intrinsic arc shape in centre of the H profile steel side of 4 H profile steel structure components, the billet (10) of arc shape are equipped with substrate spring (11).The apparatus structure is simple and convenient to operate, and suitable for the model test of sizes, can effectively simulate different country rock situations, linning defect, testing expenses are cheap, stress is clear and definite, reliability is high.

Description

A kind of experimental rig of the horizontal loading of tunnel lining structure
Technical field
The utility model is related to a kind of experimental rigs of the horizontal loading of tunnel lining structure, belong to tunnel model test technology neck Domain.
Background technology
With the rapid development of transport development, the quantity and mileage of operation tunnel increasingly increase, but China's operation tunnel disease Damage problem is also more prominent, and many tunnel lining structures have the defects of coming to nothing behind, thickness is insufficient and opening in various degree Split, breakage, the diseases such as percolating water.Tunnel-liner defect and disease can influence liner structure load-carrying properties, threaten tunnel operation peace Entirely.For the influence of analysis mass defect and disease to liner structure safety, need to carry out liner structure mechanics under different situations The model test of performance.To determine the reliability of model test, there is an urgent need for develop the experimental rig of suitable liner structure static loading.
Existing tunnel lining structure load testing machine or device are complicated at present, somewhat expensive or according to simple Load-structure loading mode, it is impossible to consider loading function of the country rock effect of contraction with the different stress directions of simulation, and dismount complicated It is of high cost, it is unfavorable for being efficiently deployed for experiment.
Invention content
It is clear and definite, simple in structure, easy to operate the purpose of this utility model is to provide a kind of stress, and it can be considered that enclose Rock effect of contraction, liner structure duty status the horizontal loading of tunnel lining structure experimental rig.
The experimental rig of the horizontal loading of tunnel lining structure of the utility model, including steel frame component, is embedded with test Liner structure, Loading Control equipment and the monitoring instrument of element;Its steel frame component is by being arranged on liner structure (14) outer surface And symmetrical H profile steel structure component, a cyclic counter-force frame of closing is connected by connecting plate (13) and bolt (12) Frame;H profile steel structure component includes the first H profile steel structure component (1), the second H profile steel structure component (2), third H profile steel structure component (3), the Four H profile steel structure components (4) and the 5th H profile steel structure component (5);Wherein:First H profile steel structure component (1), the second H profile steel structure component (2), the centre of the H profile steel side of third H profile steel structure component (3) is fixed with the jack (7) being placed on the first billet (6), The top of jack (7) is equipped with the second billet (8), and the second billet (8) is equipped with the rubber being close to liner structure (14) Bed course (9);Its intrinsic surface of the centre of the H profile steel side of 4th H profile steel structure component (4) and the 5th H profile steel structure component (5) is in The billet (10) of arc shape is provided with the substrate bullet that top is close to liner structure (14) on the billet (10) of arc shape Spring (11).
The steel frame component of the utility model is made according to a conventional method using commercially available part;It is embedded with the lining of testing element Structure (14) is built according to the prefabricated different diseases of experiment demand and defect.Loading Control equipment and monitoring instrument are bought for market, Operating method is compared with technology.
The beneficial effects of the utility model are:Apparatus structure is simple and convenient to operate, and is tried suitable for the model of sizes It tests, can effectively simulate different country rock situations, linning defect, testing expenses are cheap, stress is clear and definite, reliability is high.
Description of the drawings
Fig. 1 is the lining model experimental rig main structure diagram of the utility model.
Fig. 2 is the H profile steel component connection diagram of the utility model.
Specific embodiment:
The utility model is described in further detail below in conjunction with drawings and examples.
As shown in Figure 1, the utility model includes steel frame component, the liner structure for being embedded with testing element, Loading Control Equipment and monitoring instrument;Its steel frame component is by being arranged on 14 outer surface of liner structure and symmetrical H shaped steel structure groups Part connects into the reaction frame of a closing cyclization by connecting plate 13 and bolt 12;H profile steel structure component includes the first H profile steel Structure component 1, the second H profile steel structure component 2, third H profile steel structure component 3, the 4th H shaped steel structures component 4 and the 5th H profile steel structure component 5;Wherein:First H profile steel structure component 1, the second H profile steel structure component 2, third H profile steel structure component 3 the centre of H profile steel side consolidate Surely there is the jack 7 being placed on the first billet 6, the top of jack 7 is equipped with the second billet 8, and the second billet 8 is equipped with The rubber spacer 9 being close to liner structure 14;In the H profile steel side of 4th H profile steel structure component 4 and the 5th H profile steel structure component 5 Between the intrinsic arc-shaped shape in its surface billet 10, be provided with top on the billet 10 of arc shape and be close to liner structure 14 Substrate spring 11.
The steel frame component of the utility model is made according to a conventional method using commercially available part;It is embedded with the lining of testing element Structure 14 is built according to the prefabricated different diseases of experiment demand and defect.Loading Control equipment and monitoring instrument are bought for market, behaviour Make method compared with technology.
14 likelihood ratio of liner structure of the present embodiment uses 1:5~1:10, simulate the load-carrying properties under large scale.
The use step of the present embodiment is as follows:
A, the prefabricated liner structure 14 for being embedded with the testing elements such as foil gauge is placed in steel frame component, passes through tune Whole 7 stroke of jack and 11 position of substrate spring so that be close to liner structure 14 at each position.
C, test equipment installation and load test:It is typical in the vault of liner structure 14, haunch, abutment wall, foundation and inverted arch Position installation displacement meter (or dial gauge), slit gauge instrument, and high-speed camera is set to implement loading complete process follow shot.Oil Pump startup jack 7 implement loading, each jack 7 can independent control or combination control, realize different loading.Test The deformation of liner structure, crack extension and destruction situation in loading procedure.This experimental rig can also be loaded by changing jack Mode simulates different confining pressure pressure, and country rock situation is simulated by changing spring distribution and rigidity, passes through prefabricated different cracks Or air entraining agent etc. is added in come the defects of simulating Lining Crack and loose concrete.

Claims (1)

1. a kind of experimental rig of the horizontal loading of tunnel lining structure, including steel frame component, it is embedded with the lining cutting of testing element Structure, Loading Control equipment and monitoring instrument;It is characterized in that:Steel frame component is by being arranged on liner structure (14) outer surface simultaneously Symmetrical H profile steel structure component connects into the frame of a closing by connecting plate (13) and bolt (12);H profile steel structure Component includes the first H profile steel structure component (1), the second H profile steel structure component (2), third H profile steel structure component (3), the 4th H profile steel structure Component (4) and the 5th H profile steel structure component (5);Wherein:First H profile steel structure component (1), the second H profile steel structure component (2), the 3rd H The centre of the H profile steel side of shaped steel structure component (3) is fixed with the jack (7) being placed on the first billet (6), jack (7) Top be equipped with the second billet (8), the second billet (8) is equipped with the rubber spacer (9) being close to liner structure (14);The The steel pad of the intrinsic arc-shaped shape in its surface in the centre of the H profile steel side of four H profile steel structure components (4) and the 5th H profile steel structure component (5) Plate (10) is provided with the substrate spring (11) that top is close to liner structure (14) on the billet (10) of arc shape.
CN201721195864.9U 2017-09-18 2017-09-18 A kind of experimental rig of the horizontal loading of tunnel lining structure Expired - Fee Related CN207585937U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721195864.9U CN207585937U (en) 2017-09-18 2017-09-18 A kind of experimental rig of the horizontal loading of tunnel lining structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721195864.9U CN207585937U (en) 2017-09-18 2017-09-18 A kind of experimental rig of the horizontal loading of tunnel lining structure

Publications (1)

Publication Number Publication Date
CN207585937U true CN207585937U (en) 2018-07-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721195864.9U Expired - Fee Related CN207585937U (en) 2017-09-18 2017-09-18 A kind of experimental rig of the horizontal loading of tunnel lining structure

Country Status (1)

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CN (1) CN207585937U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110186703A (en) * 2019-06-17 2019-08-30 福建博海工程技术有限公司 A kind of mountain tunnel loading test loading device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110186703A (en) * 2019-06-17 2019-08-30 福建博海工程技术有限公司 A kind of mountain tunnel loading test loading device

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Granted publication date: 20180706

Termination date: 20190918