CN107255038A - Anchorage cable anchoring mode and structure in a kind of loose coal - Google Patents
Anchorage cable anchoring mode and structure in a kind of loose coal Download PDFInfo
- Publication number
- CN107255038A CN107255038A CN201710439049.0A CN201710439049A CN107255038A CN 107255038 A CN107255038 A CN 107255038A CN 201710439049 A CN201710439049 A CN 201710439049A CN 107255038 A CN107255038 A CN 107255038A
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- CN
- China
- Prior art keywords
- anchor
- agent
- cable
- anchor cable
- hole
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/025—Grouting with organic components, e.g. resin
Abstract
The present invention relates to anchorage cable anchoring mode and structure in coal supporting technology field, more particularly to a kind of loose coal, comprise the following steps：S1, bores anchor cable hole on coal body；S2, into anchor cable hole, injection has diffusible first Anchor Agent；S3, into anchor cable hole, the second Anchor Agent for sealing of hole is injected in the first Anchor Agent top；S4, anchor cable is inserted into the first Anchor Agent along anchor cable hole and stirred, is diffused into the first Anchor Agent part in the coal body around it.The first Anchor Agent of the present invention is first put into the anchor cable hole being drilled, and is then placed in the second Anchor Agent, is finally inserted anchor cable stirring.The invention can ensure that broken coal body helps the anchor force of anchor cable, raising side anchor cable pretightning force plays the support action of anchor cable, and control tunnel portion of side deformation, the broken coal body tunnel side portion's amount of shifting near of solution causes greatly the problem that tunnel is constantly reprocessed.The anchorage cable anchoring mode of the present invention is easy to underground construction simultaneously, does not increase former anchor cable construction process, easy to utilize, with high techno-economic effect.
Description
Technical field
The present invention relates to anchorage cable anchoring mode and structure in coal supporting technology field, more particularly to a kind of loose coal.
Background technology
In recent years, with the increase of coal mining depth and intensity, much broken coal body tunnel, the type tunnel are occurred in that
Rock deformation pressure is big, and supporting is difficult, and simple suspension roof support is difficult to control to the deformation of tunnel portion of side, and two help the amount of shifting near big, exceed well over lane
The license deformation range in road.It is complement side to solve the measure taken in the problem of broken coal body tunnel side portion's amount of shifting near is big, ore deposit
Anchor cable, using the high pretightening force and high anchor force for helping anchor cable, strengthens the supporting intensity in portion of side, portion of control side is shifted near.At present, anchor is helped
Suo Jiben is anchored using traditional Anchor Agent, and Anchor Agent primarily serves cohesive action, and in broken coal body tunnel, due to
Coal mass strength is low and broken, and the cohesive action of Anchor Agent is difficult to good performance, causes anchorage cable anchoring power to be difficult to ensure that, helps anchor cable
Anchoring effect is bad, and anchor cable pretightning force and anchor force are difficult to reach design requirement, have had a strong impact on cable bolting effect.It is many broken
Although broken coal body tunnel complement side anchor cable, is due to anchor cable pretightning force and anchor force are all very low, or even and bolt pretension
Same level is in anchor force, the support capacity of anchor cable is not played, causes the two of tunnel to help the amount of shifting near still very big, tunnel
Brushing of having to is reprocessed.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is to solve existing anchorage cable anchoring mode because coal mass strength is low and broken, difficult
The problem of to ensure anchor force and the anchoring effect for helping anchor cable.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides anchorage cable anchoring mode in a kind of loose coal, including it is following
Step：
S1, bores anchor cable hole on coal body；
S2, into anchor cable hole, injection has diffusible first Anchor Agent；
S3, into anchor cable hole, the second Anchor Agent for sealing of hole is injected in the first Anchor Agent top；
S4, anchor cable is inserted into the first Anchor Agent along anchor cable hole and stirred, is diffused into the first Anchor Agent part around it
Coal body in.
Wherein, the upper surface of second Anchor Agent and first Anchor Agent.
Wherein, first Anchor Agent synthesizes polyphosphazene polymer imines glue fat material by bi-component and catalyst is constituted.
Wherein, second Anchor Agent is made up of unsaturated polyester resin and curing agent.
Present invention also offers anchorage cable anchoring structure in a kind of loose coal, including anchor cable and anchor cable hole, the anchor cable position
In the anchor cable hole, anchor layer, the anchor layer are filled between the inwall of the outer surface of the anchor cable and the anchor cable hole
Including the first anchor layer and the second anchor layer set gradually from bottom to up, the first anchoring layer segment diffuses into the anchor cable
In coal body around hole.The upper surface of first anchor layer is located at the end face in the anchor cable hole higher than the anchor cable.
Wherein, first anchor layer with diffusible first Anchor Agent by forming.
Wherein, second anchor layer is formed by the second Anchor Agent for sealing of hole.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the following advantages that：Anchorage cable anchoring mode in loose coal of the present invention, the first anchor
Gu agent is first put into the anchor cable hole being drilled, the second Anchor Agent is then placed in, anchor cable stirring is finally inserted.First inject the first of anchor cable hole
Anchor Agent both there is slip casting to act on, and have cohesive action again, after flow into the second Anchor Agent above the first Anchor Agent and play anchoring
With sealing of hole double action, certain anchor force was both provided, pressure can also be provided when slip casting Anchor Agent spreads, it is ensured that slip casting anchor
Gu agent is diffused into a big way in coal body.First Anchor Agent can improve coal body with the coal body around grouting and reinforcing anchor cable hole
Anchor, simultaneously as nearby coal body is reinforced anchor cable hole, as a complete entirety, the reinforcing body when anchor cable stress
Overall stress, movement, can also play a part of mechanical anchor, and the slip casting effect of the first Anchor Agent and anchorage effect mutually promote
Enter, can greatly improve anchor cable pretightning force and anchoring effect, it is ensured that broken coal body side anchorage cable anchoring power.The invention can ensure that broken
Broken coal body helps the anchor force of anchor cable, improves side anchor cable pretightning force, gives full play to the support action of anchor cable, and control tunnel portion of side becomes
Shape, solving broken coal body tunnel side portion's amount of shifting near causes greatly the problem that tunnel is constantly reprocessed.While the anchorage cable anchoring side of the present invention
Formula is easy to underground construction, does not increase former anchor cable construction process, easy to utilize, with high techno-economic effect.
Except it is described above present invention solves the technical problem that, constitute technical scheme technical characteristic and have this
Outside the advantage that the technical characteristic of a little technical schemes is brought, what other technical characteristics of the invention and these technical characteristics were brought
Advantage, will be further illustrated with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation in anchorage cable anchoring mode after the completion of step 3 in loose coal of the embodiment of the present invention；
Fig. 2 is the structural representation in anchorage cable anchoring mode after the completion of step 4 in loose coal of the embodiment of the present invention.
In figure：1：Anchor cable hole；2：First Anchor Agent；3：Second Anchor Agent；4：Anchor cable；5：Coal body.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In addition, in the description of the invention, unless otherwise indicated, " multiple ", " many ", " multigroup " be meant that two or
Two or more, " several ", " some ", " some groups " are meant that one or more.
As depicted in figs. 1 and 2, anchorage cable anchoring mode in loose coal provided in an embodiment of the present invention, comprises the following steps：
S1, bores anchor cable hole on coal body；
S2, into anchor cable hole, injection has diffusible first Anchor Agent；
S3, into anchor cable hole, the second Anchor Agent for sealing of hole is injected in the first Anchor Agent top；
S4, anchor cable is inserted into the first Anchor Agent along anchor cable hole and stirred, is diffused into the first Anchor Agent part around it
Coal body in.
Anchorage cable anchoring mode in loose coal of the present invention, the first Anchor Agent is first put into the anchor cable hole being drilled, and is then placed in
Two Anchor Agents, are finally inserted anchor cable stirring.First the first Anchor Agent of injection anchor cable hole both there is slip casting to act on, and has again and coheres work
With, after flow into the second Anchor Agent above the first Anchor Agent and play anchoring and sealing of hole double action, certain anchor force was both provided,
Pressure can also be provided when slip casting Anchor Agent spreads, it is ensured that slip casting Anchor Agent is diffused into a big way in coal body.First anchor
Gu agent with the coal body around grouting and reinforcing anchor cable hole, can improve the anchor of coal body, simultaneously as nearby coal body is added anchor cable hole
Gu, as a complete entirety, when anchor cable stress, reinforcing body entirety stress, movement, can also play mechanical anchor
Effect, the slip casting effect of the first Anchor Agent and anchorage effect are mutually promoted, and can greatly improve anchor cable pretightning force and anchoring is imitated
Really, it is ensured that broken coal body side anchorage cable anchoring power.The invention can ensure that broken coal body helps the anchor force of anchor cable, side anchor cable pretension is improved
Power, gives full play to the support action of anchor cable, and control tunnel portion of side deformation, the broken coal body tunnel side portion's amount of shifting near of solution causes greatly lane
The problem that road is constantly reprocessed.The anchorage cable anchoring mode of the present invention is easy to underground construction simultaneously, does not increase former anchor cable construction process,
It is easy to utilize, with high techno-economic effect.
Wherein, the upper surface of the second Anchor Agent 3 and the first Anchor Agent 2.Second Anchor Agent is anchored as closure first
The anchor layer of agent, sufficient diffusion pressure can also be provided in addition to anchorage effect for the first Anchor Agent.
Wherein, the first Anchor Agent 2 synthesizes polyphosphazene polymer imines glue fat material by bi-component and catalyst is constituted.Second anchoring
Agent 3 is made up of unsaturated polyester resin and curing agent.First Anchor Agent by bi-component synthesize polyphosphazene polymer imines glue fat material and
Catalyst is constituted, and the second Anchor Agent is made up of unsaturated polyester resin and curing agent, is more traditional Anchor Agent, wherein, no
Saturated polyester resin can be formed by unsaturated dibasic acid, monounsaturated dicarboxylic acid and dihydric alcohol through polycondensation reaction.The first Anchor Agent expands
Dissipate the expandable polynary netted close bullet of generation after two kinds of components mixing that the reason for property is better than second of Anchor Agent is the first Anchor Agent
Property body, the elastomer diffusivity is good, can penetrate into coal body.
As shown in Fig. 2 present invention also offers anchorage cable anchoring structure in loose coal, including anchor cable 4 and anchor cable hole 1, anchor
Rope 4 is located in anchor cable hole 1, and anchor layer is filled between the outer surface of anchor cable 4 and the inwall of anchor cable hole 1, and anchor layer is included under
Supreme the first anchor layer and the second anchor layer set gradually, the coal body 5 that the first anchoring layer segment is diffused into around anchor cable hole 1
Interior, the upper surface of the first anchor layer is located at the end face in 1 anchor cable hole higher than anchor cable 4.
Anchorage cable anchoring mode forms anchorage cable anchoring structure in the above-mentioned loose media of present invention application, and the first Anchor Agent can be noted
The coal body that slurry is reinforced around anchor cable hole, improves the anchor of coal body, simultaneously as nearby coal body is reinforced anchor cable hole, as one
Individual complete entirety, when anchor cable stress, reinforcing body entirety stress, movement, can also play a part of mechanical anchor, first
The slip casting effect of Anchor Agent and anchorage effect are mutually promoted, and can greatly improve anchor cable pretightning force and anchoring effect, it is ensured that broken
Broken coal body helps anchorage cable anchoring power.The second Anchor Agent above first Anchor Agent plays anchoring and sealing of hole double action, both provides certain
Anchor force, pressure can also be provided when slip casting Anchor Agent spreads, it is ensured that slip casting Anchor Agent is diffused into larger model in coal body
Enclose.The invention can ensure that broken coal body helps the anchor force of anchor cable, side anchor cable pretightning force is improved, the supporting for giving full play to anchor cable is made
With, the deformation of control tunnel portion of side, solving broken coal body tunnel side portion's amount of shifting near causes greatly the problem that tunnel is constantly reprocessed.
Wherein, the first anchor layer with diffusible first Anchor Agent 2 by forming.
Wherein, the second anchor layer is formed by the second Anchor Agent 3 for sealing of hole.
In summary, anchorage cable anchoring mode in loose coal of the present invention, the first Anchor Agent is first put into the anchor cable hole being drilled, so
After be put into the second Anchor Agent, be finally inserted anchor cable stirring.First the first Anchor Agent of injection anchor cable hole both there is slip casting to act on, and have again
Have cohesive action, after flow into the second Anchor Agent above the first Anchor Agent and play anchoring and sealing of hole double action, both provided certain
Anchor force, pressure can also be provided when slip casting Anchor Agent spreads, it is ensured that slip casting Anchor Agent is diffused into larger model in coal body
Enclose.First Anchor Agent with the coal body around grouting and reinforcing anchor cable hole, can improve the anchor of coal body, simultaneously as anchor cable hole is attached
Nearly coal body is reinforced, as a complete entirety, and when anchor cable stress, reinforcing body entirety stress, movement, can also be played
The effect of mechanical anchor, the slip casting effect of the first Anchor Agent and anchorage effect are mutually promoted, and can greatly improve anchor cable pretension
Power and anchoring effect, it is ensured that broken coal body side anchorage cable anchoring power.The invention can ensure that broken coal body helps the anchor force of anchor cable, improve
Anchor cable pretightning force is helped, the support action of anchor cable is given full play to, the deformation of control tunnel portion of side solves broken coal body tunnel portion of side and shifted near
Amount causes the problem that tunnel is constantly reprocessed greatly.The anchorage cable anchoring mode of the present invention is easy to underground construction simultaneously, does not increase former anchor
Rope working procedure, it is easy to utilize, with high techno-economic effect.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (7)
1. anchorage cable anchoring mode in a kind of loose coal, it is characterised in that：Comprise the following steps：
S1, bores anchor cable hole on coal body；
S2, into anchor cable hole, injection has diffusible first Anchor Agent；
S3, into anchor cable hole, the second Anchor Agent for sealing of hole is injected in the first Anchor Agent top；
S4, anchor cable is inserted into the first Anchor Agent along anchor cable hole and stirred, the coal around it is diffused into the first Anchor Agent part
In vivo.
2. anchorage cable anchoring mode in loose coal according to claim 1, it is characterised in that：Second Anchor Agent and institute
State the upper surface of the first Anchor Agent.
3. anchorage cable anchoring mode in loose coal according to claim 1, it is characterised in that：First Anchor Agent is by double
Component synthesizes polyphosphazene polymer imines glue fat material and catalyst composition.
4. anchorage cable anchoring mode in loose coal according to claim 1, it is characterised in that：Second Anchor Agent is not by
Saturated polyester resin and curing agent composition.
5. anchorage cable anchoring structure in a kind of loose coal, it is characterised in that：Including anchor cable and anchor cable hole, the anchor cable is located at described
In anchor cable hole, between the inwall of the outer surface of the anchor cable and the anchor cable hole be filled with anchor layer, the anchor layer include from
Under supreme the first anchor layer and the second anchor layer set gradually, it is described first anchoring layer segment diffuses into around the anchor cable hole
Coal body in.The upper surface of first anchor layer is located at the end face in the anchor cable hole higher than the anchor cable.
6. anchorage cable anchoring mode in loose coal according to claim 5, it is characterised in that：First anchor layer is by having
There is diffusible first Anchor Agent to be formed.
7. anchorage cable anchoring mode in loose coal according to claim 5, it is characterised in that：Second anchor layer by with
Formed in the second Anchor Agent of sealing of hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439049.0A CN107255038A (en) | 2017-06-12 | 2017-06-12 | Anchorage cable anchoring mode and structure in a kind of loose coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439049.0A CN107255038A (en) | 2017-06-12 | 2017-06-12 | Anchorage cable anchoring mode and structure in a kind of loose coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107255038A true CN107255038A (en) | 2017-10-17 |
Family
ID=60023982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710439049.0A Pending CN107255038A (en) | 2017-06-12 | 2017-06-12 | Anchorage cable anchoring mode and structure in a kind of loose coal |
Country Status (1)
| Country | Link |
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| CN (1) | CN107255038A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049900A (en) * | 2017-12-07 | 2018-05-18 | 中国矿业大学 | A kind of colliery bulky powder coal body armature boring construction method |
| CN109779662A (en) * | 2019-01-21 | 2019-05-21 | 河南理工大学 | The method of cherry coal rock gangway road bolthole bottom reaming filling and support |
| CN114482915A (en) * | 2021-08-17 | 2022-05-13 | 上海大屯能源股份有限公司江苏分公司 | Anchor rod anchoring construction method under irregular eye hole forming condition |
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| CN103321663A (en) * | 2013-02-28 | 2013-09-25 | 新汶矿业集团有限责任公司 | Roadway baseboard anchoring and top pouring type pre-stressed anchor cable strengthening device and construction method |
| CN204716266U (en) * | 2015-06-30 | 2015-10-21 | 重庆大学 | Back load transfer structure |
| CN104989437A (en) * | 2015-07-23 | 2015-10-21 | 河南理工大学 | Anchor cable partition anchoring and segmented pre-tightening stratum control method |
| CN105840223A (en) * | 2016-05-18 | 2016-08-10 | 华侨大学 | Large-deformation self-repairing anti-rockburst anchor rod |
| CN205689230U (en) * | 2016-06-06 | 2016-11-16 | 贵州理工学院 | A kind of recyclable pressure grouting anchor cable that allows |
-
2017
- 2017-06-12 CN CN201710439049.0A patent/CN107255038A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321663A (en) * | 2013-02-28 | 2013-09-25 | 新汶矿业集团有限责任公司 | Roadway baseboard anchoring and top pouring type pre-stressed anchor cable strengthening device and construction method |
| CN204716266U (en) * | 2015-06-30 | 2015-10-21 | 重庆大学 | Back load transfer structure |
| CN104989437A (en) * | 2015-07-23 | 2015-10-21 | 河南理工大学 | Anchor cable partition anchoring and segmented pre-tightening stratum control method |
| CN105840223A (en) * | 2016-05-18 | 2016-08-10 | 华侨大学 | Large-deformation self-repairing anti-rockburst anchor rod |
| CN205689230U (en) * | 2016-06-06 | 2016-11-16 | 贵州理工学院 | A kind of recyclable pressure grouting anchor cable that allows |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049900A (en) * | 2017-12-07 | 2018-05-18 | 中国矿业大学 | A kind of colliery bulky powder coal body armature boring construction method |
| CN109779662A (en) * | 2019-01-21 | 2019-05-21 | 河南理工大学 | The method of cherry coal rock gangway road bolthole bottom reaming filling and support |
| CN114482915A (en) * | 2021-08-17 | 2022-05-13 | 上海大屯能源股份有限公司江苏分公司 | Anchor rod anchoring construction method under irregular eye hole forming condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Zhongwei Inventor after: Bai Jianmin Inventor after: Li Minzu Inventor after: Lin Jian Inventor after: Wu Yongzheng Inventor after: Zhang Xiaokang Inventor after: Zhang Jian Inventor after: Li Jianbo Inventor after: Liu Aiqing Inventor after: Cheng Peng Inventor before: Li Zhongwei Inventor before: Bai Jianmin Inventor before: Li Minzu Inventor before: Lin Jian Inventor before: Wu Yongzheng Inventor before: Zhang Xiaokang Inventor before: Zhang Jian Inventor before: Li Jianbo Inventor before: Liu Aiqing Inventor before: Cheng Peng |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171017 |