CN110161212A - A kind of test method and its device for simulating tunnel or roadway excavation - Google Patents
A kind of test method and its device for simulating tunnel or roadway excavation Download PDFInfo
- Publication number
- CN110161212A CN110161212A CN201910468695.9A CN201910468695A CN110161212A CN 110161212 A CN110161212 A CN 110161212A CN 201910468695 A CN201910468695 A CN 201910468695A CN 110161212 A CN110161212 A CN 110161212A
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- machine frame
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- test machine
- tunnel
- excavation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Chemical & Material Sciences (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a kind of experimental rigs of test method for realizing simulation tunnel or roadway excavation, including testing machine frame, the inner wall of the test machine frame is equipped with several loading devices, several loading devices are uniformly distributed on the inner wall of test machine frame, several square body Models and cylinder model being connected in series along excavation direction by rope are arranged in the test machine frame, foil gauge is equipped between adjacent square body Model and cylinder model, the present invention provides the test methods and its device in a kind of simulation tunnel or roadway excavation easy to assembly.
Description
Technical field
The present invention relates to rock test field, be more particularly to a kind of simulation tunnel or roadway excavation test method and its
Device.
Background technique
Application No. is: the Chinese patent of CN201721585051.0 discloses Blasting Excavation under the three-dimensional loading environment of simulation and unloads
The experimental rig of lotus.The device includes reaction frame, bearing plate, hydraulic jack, blast hole, connection bolt, hydraulic jack control
System switch, hydraulic jack control route, hydraulic power unit, fluid pressure line, computer, Blasting Control switch, explosion lead, strain
Piece, hole, connecting plate, screw hole, analog material sample, deformeter, nut.
But be fixed by bolts in above-mentioned patent document, not only installation bothers, and the period is long, resets after test also extremely numb
It is tired, it can not situations such as there are gaps between realistic simulation rock.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides the tests in a kind of simulation tunnel or roadway excavation easy to assembly
Method and device thereof.
To achieve the above object, the present invention provides the following technical scheme that the test in a kind of simulation tunnel or roadway excavation
Method includes the following steps,
(1) two kinds of square with through hole prefabricated first, cylindrical body models are several；
(2) tunnel excavation direction is pressed, model is connected using the different nylon rope of thickness；
(3) it is laid with foil gauge between models；
(4) laying of model is carried out on external glass epoxy, and carries out putting for model with derrick car；
(5) three-dimensional pressure is carried out to model；
(6) apply external static load, open and load door below, and pull the model string body within the scope of tunnel or tunnel, carry out
Excavation simulation；
(7) statistical analysis stress changing curve and surrounding block models fall situation；
(8) release after testing is completed, loose rope is reversely tensed, the reset of implementation model.
A kind of experimental rig of test method that realizing simulation tunnel or roadway excavation, including test machine frame, the examination
The inner wall for testing machine frame is equipped with several loading devices, and several loading devices are uniformly distributed in the inner wall of test machine frame
On, several square body Models and cylindrical body mould being connected in series along excavation direction by rope are arranged in the test machine frame
Type is equipped with foil gauge between adjacent square body Model and cylinder model.
The two side walls of the further test machine frame further include hydraulic prop with testing machine frame articulation, institute
State one end joint test machine frame of hydraulic prop, the side wall of other end joint test machine frame.
The side wall of the further test machine frame is equipped with dismountable pressure port.
In conclusion the present invention connects consecutive phantom by rope, only need after blast analogue to tunnel or roadway excavation
Contrary direction pulls model, will can successively tense after explosion to the model that excavation direction is scattered, weight after model blasting
New resetting block, come link model, saves the plenty of time of model buildings, and pass through without by bolt when building
The cooperation of circular model and square model buildings can more meet actual excavation situation with the gap between simulation rock.
Detailed description of the invention
Fig. 1 is the installation diagram of experimental rig of the present invention；
Fig. 2 is the structure chart of experimental rig of the present invention；
Fig. 3 is that the side wall of experimental rig of the present invention opens figure；
Fig. 4 is the spliced map at tunnel or tunnel；
Fig. 5 is the connection figure of rope and model.
Mark explanation: 1, machine frame is tested；2, loading device；3, square body Model；4, pressure port；5, hydraulic prop；6,
Cylinder model；7, rope.
Specific embodiment
Referring to figs. 1 to the embodiment of the test method and its device of the simulation tunnel a kind of to the present invention Fig. 5 or roadway excavation
It is described further.
A kind of experimental rig of test method that realizing simulation tunnel or roadway excavation, including test machine frame 1, the examination
The inner wall for testing machine frame 1 is equipped with several loading devices 2, and several loading devices 2 are uniformly distributed in the interior of test machine frame 1
On wall, several square body Models 3 and circle being connected in series along excavation direction by rope 7 are arranged in the test machine frame 1
Type cylinder models 6 are equipped with foil gauge between adjacent square body Model 3 and cylinder model 6.
The square body Model 3 with through hole prefabricated first, cylinder model 6 are several, the quantity of model in the present embodiment
Can be 500, then press tunnel excavation direction, model is connected using the different nylon rope of thickness, and model it
Between be laid with foil gauge, the laying of model is carried out on external glass epoxy, and carries out putting for model with derrick car, then to mould
Type carries out three-dimensional pressure, applies external static load, opens and load door below, and pull the model string body within the scope of tunnel or tunnel,
Excavation simulation is carried out, statistical analysis stress changing curve and surrounding block models fall situation, release after experiment are completed, loose
Rope 7 reversely tenses, the reset of implementation model, and above-mentioned apparatus connects consecutive phantom by rope 7, only need after blast analogue to
Tunnel or the contrary direction of roadway excavation pull model, will can successively draw after explosion to excavating the model that direction is scattered
Tightly, it is resetted fastly again after model blasting, come link model, saves model buildings without by bolt when building
It plenty of time, and the cooperation built by cylinder model 6 and square body Model 3, can more be accorded with the gap between simulation rock
Close actual excavation situation.
The two side walls of the preferred test machine frame 1 of the present embodiment are hinged with test machine frame 1, further include hydraulic
Pillar 5, one end joint test machine frame 1 of the hydraulic prop 5, the side wall of other end joint test machine frame 1 are taken in model
When building, the side wall of test machine frame 1 can be strutted by hydraulic prop 5, so as to build model convenient for derrick car.
The side wall of the preferred test machine frame 1 of the present embodiment is equipped with dismountable pressure port 4, when test machine frame
When 1 internal pressure is excessively high, effective pressure release can be carried out by pressure port 4.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (4)
1. the test method in a kind of simulation tunnel or roadway excavation, it is characterized in that: include the following steps,
(1) two kinds of square with through hole prefabricated first, cylindrical body models are several；
(2) tunnel excavation direction is pressed, model is connected using the different nylon rope of thickness；
(3) it is laid with foil gauge between models；
(4) laying of model is carried out on external glass epoxy, and carries out putting for model with derrick car；
(5) three-dimensional pressure is carried out to model；
(6) apply external static load, open and load door below, and pull the model string body within the scope of tunnel or tunnel, excavated
Simulation；
(7) statistical analysis stress changing curve and surrounding block models fall situation；
(8) release after testing is completed, loose rope is reversely tensed, the reset of implementation model.
2. a kind of experimental rig for the test method for realizing simulation tunnel or roadway excavation, it is characterized in that: include test machine frame,
The inner wall of the test machine frame is equipped with several loading devices, and several loading devices are uniformly distributed in test machine frame
On inner wall, several square body Models and cylinder being connected in series along excavation direction by rope are arranged in the test machine frame
Body Model is equipped with foil gauge between adjacent square body Model and cylinder model.
3. a kind of experimental rig of test method for realizing simulation tunnel or roadway excavation according to claim 2, special
Sign is: the two side walls of the test machine frame further include hydraulic prop with testing machine frame articulation, the hydraulic prop
One end joint test machine frame, the side wall of other end joint test machine frame.
4. a kind of experimental rig of test method for realizing simulation tunnel or roadway excavation according to claim 2, special
Sign is: the side wall of the test machine frame is equipped with dismountable pressure port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468695.9A CN110161212A (en) | 2019-05-31 | 2019-05-31 | A kind of test method and its device for simulating tunnel or roadway excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468695.9A CN110161212A (en) | 2019-05-31 | 2019-05-31 | A kind of test method and its device for simulating tunnel or roadway excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110161212A true CN110161212A (en) | 2019-08-23 |
Family
ID=67630815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910468695.9A Withdrawn CN110161212A (en) | 2019-05-31 | 2019-05-31 | A kind of test method and its device for simulating tunnel or roadway excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110161212A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113160684A (en) * | 2021-02-10 | 2021-07-23 | 石家庄铁道大学 | Device and method for simulating deformation and damage of tunnel fault fracture zone |
| CN115163120A (en) * | 2022-07-12 | 2022-10-11 | 华南理工大学 | Model test device and test method for shield tunnel lining |
-
2019
- 2019-05-31 CN CN201910468695.9A patent/CN110161212A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113160684A (en) * | 2021-02-10 | 2021-07-23 | 石家庄铁道大学 | Device and method for simulating deformation and damage of tunnel fault fracture zone |
| CN115163120A (en) * | 2022-07-12 | 2022-10-11 | 华南理工大学 | Model test device and test method for shield tunnel lining |
| CN115163120B (en) * | 2022-07-12 | 2024-03-05 | 华南理工大学 | Model test device and test method for shield tunnel lining |
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| PB01 | Publication | ||
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Application publication date: 20190823 |