CN205280715U - Model of simulation excavation ground body - Google Patents

Model of simulation excavation ground body Download PDF

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Publication number
CN205280715U
CN205280715U CN201620014897.8U CN201620014897U CN205280715U CN 205280715 U CN205280715 U CN 205280715U CN 201620014897 U CN201620014897 U CN 201620014897U CN 205280715 U CN205280715 U CN 205280715U
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CN
China
Prior art keywords
tunnel
air bag
camera
excavation
country rock
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
CN201620014897.8U
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Chinese (zh)
Inventor
刘杰
徐春霖
李建林
杨渝南
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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
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Priority to CN201620014897.8U priority Critical patent/CN205280715U/en
Application granted granted Critical
Publication of CN205280715U publication Critical patent/CN205280715U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a model of simulation excavation ground body, it includes the country rock body, and the internal portion of country rock excavation has the tunnel, and the inside lateral wall of tunnel is provided with a plurality of lateral part cameras, and the afterbody of tunnel is provided with a plurality of afterbody cameras, and the top of tunnel is provided with a plurality of tops camera, and it has a plurality of foil gages to paste on the top country rock body of tunnel, and the perpendicular cartridge in top that the country rock was personally experienced sth. Part of the body has a plurality of displacement meters, tunnel internally mounted is provided with the gasbag, and the left side of gasbag is passed through the intake pipe and is linked to each other with the air pump, and the side of gasbag is passed through the pneumatic tube and is linked to each other with the barometer. This convenient operation, it is with low costs, and the simulation effect is very showing, is the effective method of simulation excavation rock mass.

Description

The model of a kind of excavation simulation ground body
Technical field
The utility model relates to the model of a kind of excavation simulation ground body, belongs to geotechnical engineering technical field.
Background technology
The Excavation Problems such as side slope or tunnel is often run in geotechnical engineering field, rock mass excavation has nonrepeatability, and the existing method that site operation is instructed, need to consume a large amount of simulation materials, existing analogy method lays rock sample, then by counter force system extruding gasbag, then exerting a force on rock sample, the situation of simulation is more single. And this patent simulation rock soil excavation model, it is possible not only to simulation and repeats excavation, the various working such as slope body, tunnel, Soaking environment can also be simulated, it is possible to record pressure and the distortion of country rock in excavation and supporting process, and the relaxation of monitoring country rock inside that can be real-time. Model of the present invention is simple, and suitability is wide, and character, the excavation method of simulation material are all very similar to practical situation, test-results reliability height, for the construction of actual engineering provides bigger reference value.
Practical novel content
The object of this device is for overcoming the deficiencies in the prior art, it is provided that a kind of model simulating ground body digging process, and this is easy to operate, and cost is low, and simulate effect is very remarkable, is the effective method of excavation simulation rock mass.
In order to realize above-mentioned technology feature, the technology feature that the utility model adopts is: the model of a kind of excavation simulation ground body, it comprises country rock body, country rock body inner excavation has tunnel, the internal side wall of tunnel is provided with multiple sidepiece camera, the afterbody of tunnel is provided with multiple afterbody camera, the top of tunnel is provided with multiple tops camera, the top country rock body of tunnel is pasted with multiple foil gauge, the top of country rock body is vertically fitted with multiple displacement gauge, described tunnel inside is installed and is provided with air bag, the left side of air bag is connected with air pump by inlet pipe, the side of air bag is connected with weather gage by pneumatic tube.
Described air bag adopts monoblock type or split type.
The shape of described air bag is spherical or square.
The solid particulate of described air bag filled with gas, liquid or mobility.
Described sidepiece camera, afterbody camera are connected with tunnel external monitor equipment by many signal wires with top camera.
The utility model has following useful effect:
Simulation material air bag needed for the utility model is simple and easy to get, only need to the certain rate uniform process of inflation simulation rock mass support or digging process of the simulation rock mass that loses heart in air bag slowly, by segment displacement meter is vertically inserted into inside the ground body needing maintenance, it is possible to record the distortion of ground body around. Place stress sheet above ground body around as required, record the pressure at different supporting position. In the process of simulation, lay many wires and minisize pick-up head, the relaxation of record country rock inside in the inside of tunnel or slope body. And use different carcasses and the rock mass of weighting material material simulation different-stiffness. This operation has repeatability, and suitability is wide, and character, the excavation method of simulation material are all very similar to practical situation, test-results reliability height, for the construction of actual engineering provides bigger reference value.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the utility model one-piece construction schematic diagram.
In figure: country rock body 1, sidepiece camera 2, afterbody camera 3, top camera 4, foil gauge 5, displacement gauge 6, tunnel 7, air bag 8, inlet pipe 9, air pump 10, weather gage 11, pneumatic tube 12.
Embodiment
Below in conjunction with accompanying drawing, enforcement mode of the present utility model is described further.
See Fig. 1, the model of a kind of excavation simulation ground body, it comprises country rock body 1, country rock body 1 inner excavation has tunnel 7, the internal side wall of tunnel 7 is provided with multiple sidepiece camera 2, the afterbody of tunnel 7 is provided with multiple afterbody camera 3, the top of tunnel 7 is provided with multiple tops camera 4, the top country rock body 1 of tunnel 7 is pasted with multiple foil gauge 5, the top of country rock body 1 is vertically fitted with multiple displacement gauge 6, described tunnel 7 inside is installed and is provided with air bag 8, the left side of air bag 8 is connected with air pump 10 by inlet pipe 9, the side of air bag 8 is connected with weather gage 11 by pneumatic tube 12.
Further, by foil gauge 5, record whole excavation and supporting process, the pressure of different sites ground body.
Further, described air bag 8 adopts monoblock type or split type. The rock mass that excavation simulation falls is molectron two kinds of situations of single independent ground body or multiple ground body.
Further, the material of described air bag 8 is different, simulates the rock mass of different-stiffness with the air bag 8 of unlike material.
Further, the shape of described air bag 8 is spherical or square.
Further, the solid particulate of described air bag 8 filled with gas, liquid or mobility, such as the saturated sand with water. The excavating condition of tunnel 7 can be simulated by inflation and deflation course.
Further, described sidepiece camera 2, afterbody camera 3 are connected with tunnel external monitor equipment by many signal wires with top camera 4, the Change in surrounding rocks situation of tunnel 7 inside can be detected constantly, it is possible to by the relaxation of visual Real-Time Monitoring country rock inside by multiple camera.
Further, described air bag 8 is possible not only to simulate the common problem of the geotechnical engineering such as slope body and tunnel, it is also possible to the impact under simulative immersion environment.
Concrete working process of the present utility model and principle of work be:
Simulation tunnel excavation operating mode: inflate to slowly air bag 8 with certain rate uniform, make it just to contact with other rock mass, closely in succession together, observe the numerical value change of foil gauge 5 and displacement gauge 6, the operating mode of simulation ground body supporting; Then lose heart to slowly air bag 8 with certain rate uniform, observe the numerical value change of foil gauge 5 and displacement gauge 6, the operating mode of excavation simulation.
Excavation simulation backfill operating mode: first a monomer-type air bag 8 or split type multiple air bags 8 are put into inside certain tunnel 7 or slope body, pressurize to air bag 8 and inflate, and air bag 8 is contacted with surrounding rock body, then displacement gauge 6 is received on the rock mass around air bag 8, and continue to pressurize and be inflated to the numerical value of setting. The whole process of simulation has the omnidistance record of multiple camera, the change of monitor in real time country rock inside, air bag 8 has spherical, square various shape such as grade, the material of the material of air bag 8 carcass is different, it is possible to the rock mass of simulation different-stiffness, air bag 8 is all equipped with a weather gage 11 above, the air pressure of air bag 8 inside can be set, and control excavation, the speed that supporting and backfill are reinforced.
By reference to the accompanying drawings enforcement mode of the present utility model is explained in detail, but the utility model is not limited to above-mentioned enforcement mode. Above-described embodiment all not running counter to innovative point of the present utility model and operation steps, in claims, can be modified by technician. Protection domain of the present utility model, should cover such as claim book of the present utility model.

Claims (5)

1. the model of an excavation simulation ground body, it comprises country rock body (1), country rock body (1) inner excavation has tunnel (7), it is characterized in that: the internal side wall of tunnel (7) is provided with multiple sidepiece camera (2), the afterbody of tunnel (7) is provided with multiple afterbody camera (3), the top of tunnel (7) is provided with multiple tops camera (4), top country rock body (1) of tunnel (7) is pasted with multiple foil gauge (5), the top of country rock body (1) is vertically fitted with multiple displacement gauge (6), described tunnel (7) inside is installed and is provided with air bag (8), the left side of air bag (8) is connected with air pump (10) by inlet pipe (9), the side of air bag (8) is connected with weather gage (11) by pneumatic tube (12).
2. the model of a kind of excavation simulation ground body according to claim 1, it is characterised in that: described air bag (8) adopts monoblock type or split type.
3. the model of a kind of excavation simulation ground body according to claim 1 and 2, it is characterised in that: the shape of described air bag (8) is spherical or square.
4. the model of a kind of excavation simulation ground body according to claim 3, it is characterised in that: the solid particulate of described air bag (8) filled with gas, liquid or mobility.
5. the model of a kind of excavation simulation ground body according to claim 1, it is characterised in that: described sidepiece camera (2), afterbody camera (3) are connected with tunnel external monitor equipment by many signal wires with top camera (4).
CN201620014897.8U 2016-01-08 2016-01-08 Model of simulation excavation ground body Expired - Fee Related CN205280715U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620014897.8U CN205280715U (en) 2016-01-08 2016-01-08 Model of simulation excavation ground body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620014897.8U CN205280715U (en) 2016-01-08 2016-01-08 Model of simulation excavation ground body

Publications (1)

Publication Number Publication Date
CN205280715U true CN205280715U (en) 2016-06-01

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Country Status (1)

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CN (1) CN205280715U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107702680A (en) * 2017-08-31 2018-02-16 浙江工业大学 Steel arch-shelf deformation measuring device and its construction method under a kind of tunnel bias state
CN107727055A (en) * 2017-10-13 2018-02-23 河南理工大学 A kind of gas pumping tube lifetime detecting system based on foil gauge
CN108648603A (en) * 2018-05-06 2018-10-12 北京工业大学 A kind of air bag-supporting test device of simulation tunnel partial excavation
CN108956940A (en) * 2018-06-08 2018-12-07 中国人民解放军63926部队 Simulate the physical experiments device and method thereof of tunnel excavation
CN110645015A (en) * 2019-09-28 2020-01-03 同济大学 Shield tunnel segment joint test model with different rigidity under positive and negative bending moment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107702680A (en) * 2017-08-31 2018-02-16 浙江工业大学 Steel arch-shelf deformation measuring device and its construction method under a kind of tunnel bias state
CN107702680B (en) * 2017-08-31 2020-05-22 浙江工业大学 Steel arch frame deformation measuring device in tunnel bias state and construction method thereof
CN107727055A (en) * 2017-10-13 2018-02-23 河南理工大学 A kind of gas pumping tube lifetime detecting system based on foil gauge
CN108648603A (en) * 2018-05-06 2018-10-12 北京工业大学 A kind of air bag-supporting test device of simulation tunnel partial excavation
CN108956940A (en) * 2018-06-08 2018-12-07 中国人民解放军63926部队 Simulate the physical experiments device and method thereof of tunnel excavation
CN110645015A (en) * 2019-09-28 2020-01-03 同济大学 Shield tunnel segment joint test model with different rigidity under positive and negative bending moment

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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: 20160601

Termination date: 20170108