CN107727501A - A kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole - Google Patents
A kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole Download PDFInfo
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- CN107727501A CN107727501A CN201711043375.6A CN201711043375A CN107727501A CN 107727501 A CN107727501 A CN 107727501A CN 201711043375 A CN201711043375 A CN 201711043375A CN 107727501 A CN107727501 A CN 107727501A
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- screw rod
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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
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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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
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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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
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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
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0037—Generation of the force using mechanical means involving a rotating movement, e.g. gearing, cam, eccentric, or centrifuge effects
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0252—Monoaxial, i.e. the forces being applied along a single axis of the specimen
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Abstract
The invention discloses a kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole, mainly include:Design filling die parameters, it is determined that excavating cross-section shape of roadway, size and Anchorage Parameters;Make the embedded stalk frid in tunnel and arc frid, the note layer nut of the embedded fastening of anchor pole, straight rail clamp and arc rail clip plate, the weaving done in fine silks and gold thread by the tapestry method screw rod for simulating anchor system, backing plate and outer spin nut;The weaving done in fine silks and gold thread by the tapestry method screw rod insertion tunnel for being installed on note layer nut is embedded into stalk frid and on deep-slotted chip breaker board slot rail, embedded weaving done in fine silks and gold thread by the tapestry method screw position is determined using straight rail clamp and arc rail clip plate, rotates outer spin nut fastening weaving done in fine silks and gold thread by the tapestry method screw rod on weaving done in fine silks and gold thread by the tapestry method screw rod;Analog material cast molding is carried out between mould and embedded anchoring stabilising arrangement, and carries out being stripped numbering and showering curing;Secondary fastening is carried out to outer spin nut on weaving done in fine silks and gold thread by the tapestry method screw rod, realizes that initial pretightning force applies;Shaping analog material is placed on progress uniaxial compression experiment on rigidity matching, completes the embedded anchoring country rock compression carrying experiment of roadway bolt.
Description
Technical field
It is by certainly the present invention relates to a kind of laboratory analog simulation roadway bolt anchoring country rock compression carrying experimental method
Row designs and produces the embedded anchoring stabilising arrangement in tunnel and combines the experimental method that filling mould coordinates rigidity matching, and in particular to arrives
The experimental method of analog simulation roadway excavation anchoring carrying in laboratory.
Background technology
With quickly propelling for national economic development and capital construction, the deep such as mine, the energy, water power, traffic, national defence
Lower engineering is more and more, and bolt support technology is widely popularized and applied.Anchor pole(Rope)Supporting belongs to hidden supporting, and it is with branch
Protect cost is low, speed of application soon with labor intensity the advantages that small as roadway and the major anchorage support pattern of Geotechnical Engineering.I
State is only used for the anchor pole of coal road every year(Rope)Quantity is all more than several ten million roots, and anchor pole(Rope)Anchoring property will directly affect lane
The bearing capacity ability of road country rock.In fact, with gradual extension of the coal mining to deep, roadway surrounding rock is by high stress and complexity
Increasing, the anchor pole of architectonic influence(Rope)Anchoring environment it is more complicated and changeable, if anchor pole(Rope)Supporting parameter selects
It is improper to select, it will causes the deformation of tunnel anchoring country rock to aggravate to destruction unstability.Therefore, deep laneway surrounding rock anchor mechanism is studied
And parameter designing is just particularly important.
At present, it is mostly field test research to anchor surrounding rock stability research for tunnel, and laboratory is mostly large-scale similar
Simulation experiment study, and the problems such as experimental implementation is cumbersome, specific aim is poor, experiment test specimen is excessive be present, seldom it is related in rigid examination
The stability control research carried out under small-sized anchoring tunnel country rock loading environment is tested on machine.Therefore, the present invention is based on simulation tunnel
Embedded anchoring stabilising arrangement combines filling mould and coordinates rigidity matching to carry out anchoring tunnel country rock carrying experiment mechanism, proposes one
The roadway surrounding rock compression carrying experimental method of the embedded anchoring of kind anchor pole, utilizes the embedded anchoring stabilising arrangement in designed, designed making tunnel
Anchor rod anchored country rock bearer properties experiment, experimental result can be with reference to built in filling mould coordinates rigidity matching to realize tunnel
Roadway surrounding rock anchoring stability control under different geological conditions provides reference.
The content of the invention
For the current laboratory reduction tunnel anchoring carrying deficiency that experimental facilities is cumbersome, experimentation is complicated, the present invention
A kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole is proposed, it is steady to make the embedded anchoring in tunnel using designed, designed
Determine device and combine filling mould to coordinate rigidity matching to carry out simulating the compression carrying experiment of anchoring tunnel country rock, the experimental method
The embedded anchoring stabilising arrangement in tunnel is simple to operate, anchorage point can easily be accommodated, and preferably realizes different geology and different anchorings
Improving stability of surrounding rocks in roadway control research is anchored under Parameter Conditions.
The invention provides a kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole, mainly include:Design
Die parameters are loaded, it is determined that excavating cross-section shape of roadway, size and Anchorage Parameters;Make tunnel and embed stalk frid and deep-slotted chip breaker
The note layer nut of the embedded fastening of plate, anchor pole, straight rail clamp and arc rail clip plate, the weaving done in fine silks and gold thread by the tapestry method screw rod for simulating anchor system, backing plate with it is outer
Spin nut;Design simulation country rock analog material and weaving done in fine silks and gold thread by the tapestry method Screw Parameters, the weaving done in fine silks and gold thread by the tapestry method screw rod for being installed on note layer nut is embedded in tunnel
Embedded stalk frid is with deep-slotted chip breaker board slot rail, embedded weaving done in fine silks and gold thread by the tapestry method screw position, rotation are determined using straight rail clamp and arc rail clip plate
Outer spin nut fastening pad plate, weaving done in fine silks and gold thread by the tapestry method screw rod on weaving done in fine silks and gold thread by the tapestry method screw rod;Analog material is carried out between mould and embedded anchoring stabilising arrangement to pour
Type casting moulding, numbered after the shaping analog material demoulding, and carry out showering curing;Outer spin nut on weaving done in fine silks and gold thread by the tapestry method screw rod is carried out secondary tight
Gu realize that initial pretightning force applies;Shaping analog material is placed on progress uniaxial compression experiment on rigidity matching, completes lane
The embedded anchoring country rock compression carrying experiment of road anchor pole.
Comprise the following steps that:
Step 1, design filling mould specification shape, determine section configuration, size and the anchor pole in Excavation simulation tunnel, anchor cable
Anchorage Parameters;
Step 2, make and the embedded anchoring stabilising arrangement in tunnel is installed, include embedded the stalk frid and arc of drift section shaping
Shape frid, the weaving done in fine silks and gold thread by the tapestry method screw rod for simulating anchor system, backing plate and outer spin nut, note layer nut, the straight rail clamp of the embedded fastening of anchor pole
With arc rail clip plate;
Step 3, according to roadway surrounding rock feature and Anchorage Parameters, the analog material and weaving done in fine silks and gold thread by the tapestry method screw rod for selecting design simulation country rock are joined
Number, the weaving done in fine silks and gold thread by the tapestry method screw rod insertion tunnel for being installed on note layer nut is embedded into stalk frid with the grooved rail of arc frid, utilizing straight rail
Clamp straight rail determines embedded weaving done in fine silks and gold thread by the tapestry method screw position with arc rail clip plate arc rail, rotates outer spin nut fastening pad plate on weaving done in fine silks and gold thread by the tapestry method screw rod and carves
Silk screw rod;
Step 4, carries out analog material cast molding between filling mould and embedded anchoring stabilising arrangement, and shaping analog material takes off
Sort label after mould, and carries out being molded analog material maintenance, it is ensured that shaping analog material intensity index is stable;
Step 5, secondary fastening is carried out to the outer spin nut of the embedded anchoring stabilising arrangement of demoulding aftershaping analog material, realizes and carves
The application of the silk initial pretightning force of screw rod, records the initial pretension force data of weaving done in fine silks and gold thread by the tapestry method screw rod;
Step 6, stripping forming analog material is placed on rigidity matching and carries out uniaxial compression carrying experiment, collection simulation
Surrouding rock stress, surrouding rock deformation and the weaving done in fine silks and gold thread by the tapestry method screw rod stress data in tunnel, complete anchor pole and embed anchoring tunnel country rock compression carrying in fact
Test.
Further, in step 1, mould specification is shaped as 250mm × 250mm × 250mm cast iron squares.
Further, in step 2, stalk frid on arc frid with being provided with grooved rail, and stalk frid and deep-slotted chip breaker
Plate passes through clamp connection.
Further, in step 3, different size weaving done in fine silks and gold thread by the tapestry method screw rod simulates the anchor pole and anchor cable of roadway support respectively.
Further, in step 4, analog material can add certain proportion clear water to be made using different model portland cement,
Casting demoulding analog material curing time is more than 28 days.
Further, in step 5, the analog material demoulding includes sloughing filling mould and embedded stalk frid and arc
Frid, straight rail clamp and arc rail clip plate.
Further, can be on tunnel axial direction be excavated, to being stripped outside analog material according to geological conditions in step 6
Portion both sides are fastened, to apply different surrounding rock stress.
The advantages of the present invention are:The inventive method has the spies such as equipment is simple, easily operated, cost is cheap
Point, mechanical property of the tunnel under the conditions of different anchorings under different geological conditions is not only have studied, and in the tunnel of laboratory
Put anchoring experimental method and provide reference and foundation.
Brief description of the drawings
Fig. 1 is the roadway surrounding rock compression carrying experimental method schematic diagram for realizing a kind of embedded anchoring of anchor pole of the present invention.
In figure:1 is filling mould;2 be analog material;3 be arc frid;4 be arc rail;5 be arc rail clip plate;6 be straight rail;
7 be straight rail clamp;8 be stalk frid;9 be weaving done in fine silks and gold thread by the tapestry method screw rod;10 grooved rails;11 be tunnel;12 be clip;13 be backing plate;14 be outer
Spin nut;15 be note layer nut.
Embodiment
The present invention is described in further detail with example below in conjunction with the accompanying drawings.
As shown in figure 1, the invention provides a kind of roadway surrounding rock compression of the embedded anchoring of anchor pole to carry experimental method, specifically
Step is as follows:
The specification shape of mould 1 is loaded in step 1, design, determines section configuration, size and anchor pole, the anchor cable in Excavation simulation tunnel 11
Anchorage Parameters;
Step 2, make and the embedded anchoring stabilising arrangement in tunnel 11 is installed, include the embedded stalk frid 8 of the section of tunnel 11 shaping
With arc frid 3, the weaving done in fine silks and gold thread by the tapestry method screw rod 9 for simulating anchor system, backing plate 13 and outer spin nut 14, the note layer nut of the embedded fastening of anchor pole
15th, straight rail clamp 7 and arc rail clip plate 5;
Step 3, according to the country rock feature of tunnel 11 and Anchorage Parameters, the analog material 2 and weaving done in fine silks and gold thread by the tapestry method screw rod of selection design simulation country rock
9 parameters, the weaving done in fine silks and gold thread by the tapestry method screw rod 9 for being installed on note layer nut 15 is embedded in the grooved rail 10 that tunnel 11 embeds stalk frid 8 and arc frid 3
On, the embedded position of weaving done in fine silks and gold thread by the tapestry method screw rod 9 is determined using the straight rail 6 of straight rail clamp 7 and the arc rail 4 of arc rail clip plate 5, is rotated outer on weaving done in fine silks and gold thread by the tapestry method screw rod 9
Spin nut 14 fastens backing plate 13 and weaving done in fine silks and gold thread by the tapestry method screw rod 9;
Step 4, the cast molding of analog material 2 is carried out between filling mould 1 and embedded anchoring stabilising arrangement, is molded analog material 2
Sort label after the demoulding, and carries out shaping analog material 2 and conserve, it is ensured that shaping analog material 2 intensity index is stable;
Step 5, secondary fastening is carried out to the outer spin nut 14 of the embedded anchoring stabilising arrangement of demoulding aftershaping analog material 2, realized
The application of 9 initial pretightning force of weaving done in fine silks and gold thread by the tapestry method screw rod, 9 initial pretension force data of record weaving done in fine silks and gold thread by the tapestry method screw rod;
Step 6, stripping forming analog material 2 is placed on rigidity matching and carries out uniaxial compression carrying experiment, collection simulation
Surrouding rock stress, surrouding rock deformation and the stress data of weaving done in fine silks and gold thread by the tapestry method screw rod 9 in tunnel 11, complete the embedded country rock of anchoring tunnel 11 compression of anchor pole and hold
Carry experiment.
Further, in step 1, the specification of mould 1 is shaped as 250mm × 250mm × 250mm cast iron squares.
Further, in step 2, be provided with grooved rail 10 on stalk frid 8 and arc frid 3, and stalk frid 8 with
Arc frid 3 is connected by clip 12.
Further, in step 3, different size weaving done in fine silks and gold thread by the tapestry method screw rod 9 simulates the anchor pole and anchor cable of the supporting of tunnel 11 respectively.
Further, in step 4, analog material 2 can add certain proportion clear water system using different model portland cement
Into casting demoulding analog material 2 curing time is more than 28 days.
Further, in step 5, the demoulding of analog material 2 includes sloughing filling mould 1 and embedded stalk frid 8 and arc
Shape frid 3, straight rail clamp 7 and arc rail clip plate 5.
Further, can be on the axial direction of tunnel 11 be excavated, to being stripped analog material according to geological conditions in step 6
2 both sides externals are fastened, to apply different surrounding rock stress.
Protection scope of the present invention is not limited only to the description of present embodiment, but is limited according to claim
It is fixed.
Claims (7)
1. the roadway surrounding rock compression carrying experimental method of the embedded anchoring of a kind of anchor pole, it is characterised in that mainly comprise the following steps:
Step 1, design filling mould specification shape, determine section configuration, size and the anchor pole in Excavation simulation tunnel, anchor cable
Anchorage Parameters;
Step 2, make and the embedded anchoring stabilising arrangement in tunnel is installed, include embedded the stalk frid and arc of drift section shaping
Shape frid, the weaving done in fine silks and gold thread by the tapestry method screw rod for simulating anchor system, backing plate and outer spin nut, note layer nut, the straight rail clamp of the embedded fastening of anchor pole
With arc rail clip plate;
Step 3, according to roadway surrounding rock feature and Anchorage Parameters, the analog material and weaving done in fine silks and gold thread by the tapestry method screw rod for selecting design simulation country rock are joined
Number, the weaving done in fine silks and gold thread by the tapestry method screw rod insertion tunnel for being installed on note layer nut is embedded into stalk frid with the grooved rail of arc frid, utilizing straight rail
Clamp straight rail determines embedded weaving done in fine silks and gold thread by the tapestry method screw position with arc rail clip plate arc rail, rotates outer spin nut fastening pad plate on weaving done in fine silks and gold thread by the tapestry method screw rod and carves
Silk screw rod;
Step 4, carries out analog material cast molding between filling mould and embedded anchoring stabilising arrangement, and shaping analog material takes off
Sort label after mould, and carries out being molded analog material maintenance, it is ensured that shaping analog material intensity index is stable;
Step 5, secondary fastening is carried out to the outer spin nut of the embedded anchoring stabilising arrangement of demoulding aftershaping analog material, realizes and carves
The application of the silk initial pretightning force of screw rod, records the initial pretension force data of weaving done in fine silks and gold thread by the tapestry method screw rod;
Step 6, stripping forming analog material is placed on rigidity matching and carries out uniaxial compression carrying experiment, collection simulation
Surrouding rock stress, surrouding rock deformation and the weaving done in fine silks and gold thread by the tapestry method screw rod stress data in tunnel, complete anchor pole and embed anchoring tunnel country rock compression carrying in fact
Test.
2. a kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole according to claim 1, its feature exist
In in step 1, mould specification is shaped as 250mm × 250mm × 250mm cast iron squares.
3. a kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole according to claim 1, its feature exist
In:In step 2, stalk frid on arc frid with being provided with grooved rail, and stalk frid is connected with arc frid by clip
Connect.
4. a kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole according to claim 1, its feature exist
In:In step 3, different size weaving done in fine silks and gold thread by the tapestry method screw rod simulates the anchor pole and anchor cable of roadway support respectively.
5. a kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole according to claim 1, its feature exist
In:In step 4, analog material can add certain proportion clear water to be made using different model portland cement, and the casting demoulding is similar
Material curing time is more than 28 days.
6. a kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole according to claim 1, its feature exist
In:In step 5, the analog material demoulding includes sloughing filling mould and embedded stalk frid and arc frid, straight rail clamp
With arc rail clip plate.
7. a kind of roadway surrounding rock compression carrying experimental method of the embedded anchoring of anchor pole according to claim 1, its feature exist
In:In step 6, demoulding analog material both sides external can be carried out tight on tunnel axial direction is excavated according to geological conditions
Gu to apply different surrounding rock stress.
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Cited By (3)
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CN108593449A (en) * | 2018-05-02 | 2018-09-28 | 河南理工大学 | A kind of axial direction servo loading analog simulation roadway surrounding rock creep test method |
CN108760370A (en) * | 2018-06-07 | 2018-11-06 | 山东科技大学 | Multi-angle oblique rock stratum roadway support analog simulation experimental rig and test method |
CN117074168A (en) * | 2023-07-05 | 2023-11-17 | 中国矿业大学(北京) | Surrounding rock deformation experimental device and method for horizontal and vertical linkage mechanics simulation |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108593449A (en) * | 2018-05-02 | 2018-09-28 | 河南理工大学 | A kind of axial direction servo loading analog simulation roadway surrounding rock creep test method |
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CN108760370B (en) * | 2018-06-07 | 2023-11-24 | 山东科技大学 | Multi-angle inclined rock stratum roadway support similarity simulation test device and test method |
CN117074168A (en) * | 2023-07-05 | 2023-11-17 | 中国矿业大学(北京) | Surrounding rock deformation experimental device and method for horizontal and vertical linkage mechanics simulation |
CN117074168B (en) * | 2023-07-05 | 2024-05-24 | 中国矿业大学(北京) | Surrounding rock deformation experimental device and method for horizontal and vertical linkage mechanics simulation |
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