CN106771058A - A kind of experimental technique of the comprehensive tunneling process in simulation tunnel - Google Patents
A kind of experimental technique of the comprehensive tunneling process in simulation tunnel Download PDFInfo
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- CN106771058A CN106771058A CN201611091363.6A CN201611091363A CN106771058A CN 106771058 A CN106771058 A CN 106771058A CN 201611091363 A CN201611091363 A CN 201611091363A CN 106771058 A CN106771058 A CN 106771058A
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Abstract
The invention discloses a kind of experimental technique of the comprehensive tunneling process in simulation tunnel, belong to similarity simulation experiment basic research field.Model is laid during to tunnel, the pre-buried block paraffin block with design tunnel equidimension, according to heating rod thermal energy radiation scope and block paraffin melted by heat situation, bottoming hole and pod apertures is opened on block paraffin block;Experiment frame cover plate correspondence tunnel at open with block paraffin identical bottoming hole and pod apertures, by heating rod and band zone of heating mozzle order embedded hole in and number;In experimentation, according to heating rod numbering selectivity control heating, the block paraffin of fusing is flowed out along band zone of heating mozzle nearby, realize tunnel excavation simulation under different cut orders, different cut path conditions.The present invention is applied to the simulation comprehensive tunneling process in tunnel, meets production practices, easy implementation easy to operate.
Description
Technical field
The present invention is applied to similarity simulation experiment basic research field, is related to a kind of experiment side of the comprehensive tunneling process in simulation tunnel
Method.
Background technology
As China's economic stability increases, coal resources demand increases increasingly, and the meaning of high-efficiency mining more shows great.Pick
Enter as the leading operation of coal mining, digging is coordinated to be the key for ensureing coal high-efficiency exploitation.Stone drifting quantities is typically constituted from
The 50% of tunnelling whole project, accounts for mine whole project 25% or so, and compared with coal road, stone drifting speed is more slow
It is slow, therefore, optimization rock gangway cut order, raising driving speed just seem more important.Similarity simulation experiment is used as Study of The Underground
The important method and means of engineering (as dug up mine) universal law, are all widely used, but how to simulate drift miner both at home and abroad
Skill, especially the cut order still method without mature and feasible.
The content of the invention
Technical problem:The purpose of the present invention is directed to weak point of the prior art, there is provided a kind of method is simple, operation
The experimental technique of the good simulation comprehensive tunneling process in tunnel of convenient, simulation effect.
Technical scheme:The experimental technique of the comprehensive tunneling process in simulation tunnel of the invention, comprises the following steps:
A. with similar three law as theoretical foundation, tunnel fully mechanized mining surface model stress similitude ratio is calculated, determines tunnel fully mechanized coal face
Analog material and its proportioning used by each coal rock layer of model;
B. according to geometric similarity than determine tunnel moulded dimension:Length × width × height, the reality that selection is consistent with heading sizes
Test frame;
C. according to tunnel fully mechanized coal face moulded dimension, empirically requirement analog material is by being deep to shallow laying coal seam or rock stratum),
Compacting, and layer and interlayer in coal seam or rock stratum spreads a small amount of mica powder;
When d. laying model tunnel, pre-buried design Roadway model size identical block paraffin, according to heating rod heat energy spoke
Scope and block paraffin melted by heat situation are penetrated, bottoming hole and pod apertures are opened up on block paraffin;
E. cover plate is placed on model tunnel, and opens up identical with bottoming hole and pod apertures at cover plate correspondence block paraffin
Hole, by heating rod and the embedded bottoming hole of band zone of heating mozzle order and pod apertures, and it is numbered;
F. according to the cut order of experimental designs and path, the numbering selectively control heating according to heating rod is melted
The block paraffin of change along band zone of heating mozzle outflow nearby, under realizing different cuts orders, different cut path conditions
Tunnel excavation simulation.
The cut order and the advance heating tape zone of heating mozzle in path according to experimental designs, prevents block stone
The solidification in pipe when wax (6) flows out.
Described analog material is mixed by the broken sandstone and sand of coal or simulation rock stratum.
Beneficial effect:By adopting the above-described technical solution, the present invention is by the pre-buried block with design tunnel equidimension
Paraffin block, according to heating rod thermal energy radiation scope and block paraffin melted by heat situation, heating is opened on block paraffin block
Hole and pod apertures;Opened at experiment frame cover plate correspondence tunnel with block paraffin identical bottoming hole and pod apertures, by heating rod and
Band zone of heating mozzle order embedded hole is interior and numbers;In experimentation, according to heating rod numbering selectivity control heating, make to melt
Change block paraffin along band zone of heating mozzle outflow nearby, realize tunnel under different cut orders, different cut path conditions
Excavation simulation.Compared with traditional means of experiment, have the following advantages that:
(1) the comprehensive tunneling process simulation in tunnel in similar experiment is realized, tunnel can be carried out and be opened by design cut order and path
Dig, meet production practices;
(2) a kind of New methods in working is provided to study and optimize tunnel fast digging technique;
(3) it is simple to operate, easily implement.
Brief description of the drawings
Fig. 1 is a kind of experimental technique arrangement schematic diagram of comprehensive tunneling process in simulation tunnel of the invention.
Fig. 2 is simulation tunnel covering plate structure schematic diagram of the invention.
In figure, 1- experiment frames;2- base plates;3- coal seams or rock stratum;4- top boards;5- tunnels;6- block paraffin;7- cover plates;8-
Bottoming hole;9- pod apertures;10- heating rods;11- band zone of heating mozzles.
Specific embodiment
The invention will be further described for embodiment in below in conjunction with the accompanying drawings:
The experimental technique of the comprehensive tunneling process in simulation tunnel of the invention, specific implementation step is as follows:
A. with similar three law as theoretical foundation, tunnel fully mechanized mining surface model stress similitude ratio is calculated, and then calculate depanning
The uniaxial compressive strength and uniaxial tension test of each coal rock layer in type, tunnel fully mechanized mining surface model is determined by similar material mixture table
Analog material and its proportioning used by each coal rock layer;
B. according to geometric similarity than determine tunnel 5 moulded dimension:Length × width × height, what selection was consistent with the size of tunnel 5
Experiment frame (1);
C. according to tunnel fully mechanized coal face moulded dimension, empirically requirement analog material is by being deep to shallow laying coal seam or rock stratum 3,
Compacting, and layer and interlayer in coal seam or rock stratum 3 spreads a small amount of mica powder;Described analog material is by coal or the broken sand of simulation rock stratum
Stone and sand are mixed.
When d. laying model tunnel 5, pre-buried design Roadway model size identical block paraffin 6, according to the heat of heating rod 10
Energy radiation scope and the melted by heat situation of block paraffin 6, open up bottoming hole 8 and pod apertures 9 on block paraffin 6;
E. cover plate 7 is placed on model tunnel 5, and is opened up and bottoming hole 8 and water conservancy diversion at the corresponding block paraffin 6 of cover plate 7
The identical hole of hole 9, heating rod 10 and the order of band zone of heating mozzle 11 is embedded in bottoming hole 8 and pod apertures 9, and it is carried out
Numbering;
F. according to the cut order and the advance heating tape zone of heating mozzle 11 in path of experimental designs, block stone is prevented
The solidification in pipe when wax 6 flows out, the selectively control heating of numbering according to heating rod 10, the block paraffin 6 of fusing is along nearby
Band zone of heating mozzle 11 flows out, and realizes the tunnel excavation simulation under different cut orders, different cut path conditions.
G. according to the demand of different experiments, corresponding subsequent experimental is carried out.
Claims (3)
1. a kind of experimental technique of the comprehensive tunneling process in simulation tunnel, it is characterised in that comprise the following steps:
A. with similar three law as theoretical foundation, tunnel fully mechanized mining surface model stress similitude ratio is calculated, determines tunnel fully mechanized mining surface model
Analog material and its proportioning used by each coal rock layer;
B. the moulded dimension of tunnel (5) is determined according to geometric similarity ratio:Length × width × height, selection is consistent with tunnel (5) size
Experiment frame (1);
C. according to tunnel fully mechanized coal face moulded dimension, empirically requirement analog material is pressed by being deep to shallow laying coal seam or rock stratum (3)
In fact, the layer and in coal seam or rock stratum (3) spreads a small amount of mica powder with interlayer;
When d. laying model tunnel (5), pre-buried design Roadway model size identical block paraffin (6), according to heating rod (10)
Thermal energy radiation scope and block paraffin (6) melted by heat situation, open up bottoming hole (8) and pod apertures on block paraffin (6)
(9);
E. cover plate (7) is placed on model tunnel (5), and is opened up and bottoming hole (8) at cover plate (7) correspondence block paraffin (6) place
With pod apertures (9) identical hole, heating rod (10) and band zone of heating mozzle (11) order are embedded in bottoming hole (8) and pod apertures
(9) in, and it is numbered;
F. according to the cut order of experimental designs and path, the numbering selectively control heating according to heating rod (10) is melted
The block paraffin (6) of change realizes different cut orders, different cut path bars along band zone of heating mozzle (11) outflow nearby
Tunnel excavation simulation under part.
2. the experimental technique of a kind of comprehensive tunneling process in simulation tunnel according to claim 1, it is characterised in that:According to experiment side
The cut order of case design and the advance heating tape zone of heating mozzle (11) in path, when preventing block paraffin (6) from flowing out in pipe
Solidification.
3. the experimental technique of a kind of comprehensive tunneling process in simulation tunnel according to claim 1, it is characterised in that:Described is similar
Material is mixed by the broken sandstone and sand of coal or simulation rock stratum.
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CN201611091363.6A CN106771058B (en) | 2016-12-01 | 2016-12-01 | A kind of experimental method for simulating the comprehensive tunneling process in tunnel |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108333049A (en) * | 2018-05-07 | 2018-07-27 | 洛阳理工学院 | A kind of buried chamber first loads the test model excavated afterwards and test method |
CN109752493A (en) * | 2019-03-08 | 2019-05-14 | 安徽理工大学 | The method and experiment frame in the mine pressure prefabricated tunnel of similarity simulation experiment |
CN111537299A (en) * | 2020-04-28 | 2020-08-14 | 湘潭大学 | Rock stratum micro-disturbance continuous excavation method about similar physical model |
CN118169366A (en) * | 2024-05-14 | 2024-06-11 | 中国矿业大学(北京) | Steam type three-dimensional complex roadway simulated excavation test device and method |
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CN104391104A (en) * | 2014-11-27 | 2015-03-04 | 龙岩学院 | Coal seam analog simulation experiment device and application method thereof |
CN205301312U (en) * | 2015-12-01 | 2016-06-08 | 山西潞安矿业(集团)有限责任公司古城煤矿建设管理处 | Simulation coal exploitation working face experimental apparatus |
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2016
- 2016-12-01 CN CN201611091363.6A patent/CN106771058B/en active Active
Patent Citations (2)
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CN104391104A (en) * | 2014-11-27 | 2015-03-04 | 龙岩学院 | Coal seam analog simulation experiment device and application method thereof |
CN205301312U (en) * | 2015-12-01 | 2016-06-08 | 山西潞安矿业(集团)有限责任公司古城煤矿建设管理处 | Simulation coal exploitation working face experimental apparatus |
Non-Patent Citations (1)
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王海峰: "采场下伏煤岩体卸压作用原理及在被保护层卸压瓦斯抽采中的应用", 《中国博士学位论文全文数据库工程科技Ⅰ辑》 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108333049A (en) * | 2018-05-07 | 2018-07-27 | 洛阳理工学院 | A kind of buried chamber first loads the test model excavated afterwards and test method |
CN108333049B (en) * | 2018-05-07 | 2024-01-26 | 洛阳理工学院 | Test model and test method for loading and then excavating deep underground chamber |
CN109752493A (en) * | 2019-03-08 | 2019-05-14 | 安徽理工大学 | The method and experiment frame in the mine pressure prefabricated tunnel of similarity simulation experiment |
CN111537299A (en) * | 2020-04-28 | 2020-08-14 | 湘潭大学 | Rock stratum micro-disturbance continuous excavation method about similar physical model |
CN118169366A (en) * | 2024-05-14 | 2024-06-11 | 中国矿业大学(北京) | Steam type three-dimensional complex roadway simulated excavation test device and method |
CN118169366B (en) * | 2024-05-14 | 2024-07-09 | 中国矿业大学(北京) | Steam type three-dimensional complex roadway simulated excavation test device and method |
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