CN107676111A - A kind of method for protecting support for the prefabricated steel bracket of well lane engineering - Google Patents
A kind of method for protecting support for the prefabricated steel bracket of well lane engineering Download PDFInfo
- Publication number
- CN107676111A CN107676111A CN201710990299.3A CN201710990299A CN107676111A CN 107676111 A CN107676111 A CN 107676111A CN 201710990299 A CN201710990299 A CN 201710990299A CN 107676111 A CN107676111 A CN 107676111A
- Authority
- CN
- China
- Prior art keywords
- steel
- type
- lane engineering
- protecting support
- well lane
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
Abstract
A kind of method for protecting support for the prefabricated steel bracket of well lane engineering, the present invention replaces original π shaped steel supportings with n-type steel, the supporting of n-type steel can be such that the stress of country rock is preferably assigned on bow member, add supporting effect, steel support material is saved simultaneously and carries on the back the mine timber of side, security is also greatly added simultaneously, and the present invention has the characteristics that easy to operate, suitable large-scale promotion and application.
Description
Technical field
The present invention relates to a kind of method for protecting support, and in particular to a kind of method for protecting support for the prefabricated steel bracket of well lane engineering.
Background technology
Known, with the continuous progress of science and technology, deep-well mining technology is progressively comprehensively developed and applied, but is had
Non-ferrous metal deep-well mining technology is also in primary developing stage, many deficiencies also be present, should be constantly to it in the development in future
Optimize.During practice of construction, with being continuously increased for mining depth, increasing, the fortune of steel supporting is pressed to underground
With also gradually increase, in order to solve the above-mentioned technical problem, existing method is to use π shaped steel supportings, the support pattern of the structure
Not only cost is high, and security is poor, therefore how to provide a kind of rational method for protecting support just into those skilled in the art's
Long-term technology demand.
The content of the invention
Insufficient present in background technology to overcome, the invention provides a kind of branch for the prefabricated steel bracket of well lane engineering
Maintaining method, the present invention can be such that the stress of country rock is preferably assigned on bow member, add supporting effect, while save steel branch
Protective material and the mine timber for carrying on the back side, while also increase security etc..
To realize goal of the invention as described above, the present invention uses technical scheme as described below：
A kind of method for protecting support for the prefabricated steel bracket of well lane engineering, specifically comprise the following steps：
The first step, multiple n-type vaults being adapted with tunnel specification, each two n-type are set in roadway tunnel head clearance first
The spacing of vault is configured according to the steadiness of roadway roadway surrounding rock；
Second step, take the next step, set the canopy leg extended downwardly to form support respectively in the two ends of each n-type vault, in canopy leg
Lower end set base angle backing plate, the base angle backing plate be arranged on design floor level below solid rock on；
3rd step, is taken the next step, and more round logs are set between each vault and tunnel inwall, and top side requires that the tight back of the body of the back of the body is real, round log
Arched girder must be crossed, it is impossible to leakage top phenomenon occur, sky is tamped when pushing up using round log or the type turntable of well, is fallen to prevent float stone or rubble
Fall；
4th step, takes the next step, and at least two connecting rods is respectively equipped between the canopy leg of every two adjacent stent, in the outside of support
Bar-mat reinforcement is set between the inwall of tunnel, then sets waste residue to fill between bar-mat reinforcement and tunnel inwall.
The method for protecting support for the prefabricated steel bracket of well lane engineering, the spacing of the two n-types vault is 0.5~2m.
The method for protecting support for the prefabricated steel bracket of well lane engineering, the n-type vault are n-type I-steel or n-type channel-section steel.
The method for protecting support for the prefabricated steel bracket of well lane engineering, the model 9# I-steel of the I-steel.
The method for protecting support for the prefabricated steel bracket of well lane engineering, the model 12# channel-section steel steel of the channel-section steel.
The method for protecting support for the prefabricated steel bracket of well lane engineering, the length, width and height of the base angle backing plate be respectively 150mm,
100mm and 50mm.
The method for protecting support for the prefabricated steel bracket of well lane engineering, the connecting rod are steel pipe, steel pipe it is a diameter of
40mm。
The method for protecting support for the prefabricated steel bracket of well lane engineering, a diameter of 100mm of the round log, length are
2000mm。
Using technical scheme as described above, the present invention has superiority as described below：
The present invention replaces original π shaped steel supportings with n-type steel, and the supporting of n-type steel can make the stress of country rock preferably be assigned to arch
On frame, supporting effect is added, while saves steel support material and carries on the back the mine timber of side, while also greatly adds safety
Property, the present invention has the characteristics that easy to operate, suitable large-scale promotion and application.
Embodiment
The present invention can be explained in more detail by the following examples, the invention is not limited in the following examples；
A kind of method for protecting support for the prefabricated steel bracket of well lane engineering of the present invention, specifically comprises the following steps：
The first step, multiple n-type vaults being adapted with tunnel specification, each two n-type are set in roadway tunnel head clearance first
The spacing of vault is configured according to the steadiness of roadway roadway surrounding rock, when it is implemented, the spacing of two n-type vaults be 0.5~
2m；The n-type vault is n-type I-steel or n-type channel-section steel, the model 9# I-steel of the I-steel, the model of the channel-section steel
For 12# channel-section steel steel；
Second step, take the next step, set the canopy leg extended downwardly to form support respectively in the two ends of each n-type vault, in canopy leg
Lower end set base angle backing plate, the base angle backing plate be arranged on design floor level below solid rock on, base angle backing plate
Length, width and height are respectively 150mm, 100mm and 50mm；
3rd step, is taken the next step, and more round logs are set between each vault and tunnel inwall, and top side requires that the tight back of the body of the back of the body is real, round log
Arched girder must be crossed, it is impossible to leakage top phenomenon occur, sky is tamped when pushing up using round log or the type turntable of well, is fallen to prevent float stone or rubble
Fall；A diameter of 100mm of the round log, length 2000mm；
4th step, takes the next step, and at least two connecting rods is respectively equipped between the canopy leg of every two adjacent stent, in the outside of support
Bar-mat reinforcement is set between the inwall of tunnel, then sets waste residue to fill between bar-mat reinforcement and tunnel inwall, the connection
Bar is round steel, a diameter of 40mm of round steel.
The present invention in the specific implementation, according to the steadiness of roadway surrounding rock, the spacing of reasonable Arrangement n-type vault, general feelings
Spacing is 1.5m under condition；When country rock is relatively broken, it should be advisable in 1.0m or so；
Further, canopy leg bottom must install base angle backing plate and base angle backing plate must design below floor level 200mm heavily fortified point
On hard rock, if because roadway floor rock is soft, solid rock is had not yet to see after deep-cutting 200mm, need to continue to deep-cut solid rock
Untill；
Further, vault need to be evenly arranged round log, and push up side and require that the tight back of the body of the back of the body is real, and round log must cross arched girder, be forbidden leakage top occur
Phenomenon；Sky must be tamped when pushing up using round log or " type of well " turntable, is fallen to prevent float stone or rubble；
Finally, support two is helped to require to be welded using bar-mat reinforcement and round steel, and uniform welding 2 or 3 are answered between every two framves canopy leg
A diameter of 6.5mm round steel, straight line is unified into before and after guarantee；During welded steel fabric, net and net between lap of splice 100mm~
200mm, the outer no longer back of the body of net sets mine timber, but uses waste residue to fill.
Part not in the detailed description of the invention is prior art.
The embodiment selected herein for the open purpose of the present invention, is presently considered to be suitable, still, Ying Liao
Solution, it is contemplated that all changes and improvement including all embodiments belonged in this design and invention scope.
Claims (8)
1. a kind of method for protecting support for the prefabricated steel bracket of well lane engineering, it is characterized in that：Specifically comprise the following steps：
The first step, multiple n-type vaults being adapted with tunnel specification, each two n-type are set in roadway tunnel head clearance first
The spacing of vault is configured according to the steadiness of roadway roadway surrounding rock；
Second step, take the next step, set the canopy leg extended downwardly to form support respectively in the two ends of each n-type vault, in canopy leg
Lower end set base angle backing plate, the base angle backing plate be arranged on design floor level below solid rock on；
3rd step, is taken the next step, and more round logs are set between each vault and tunnel inwall, and top side requires that the tight back of the body of the back of the body is real, round log
Arched girder must be crossed, it is impossible to leakage top phenomenon occur, sky is tamped when pushing up using round log or the type turntable of well, is fallen to prevent float stone or rubble
Fall；
4th step, takes the next step, and at least two connecting rods is respectively equipped between the canopy leg of every two adjacent stent, in the outside of support
Bar-mat reinforcement is set between the inwall of tunnel, then sets waste residue to fill between bar-mat reinforcement and tunnel inwall.
2. it is used for the method for protecting support of the prefabricated steel bracket of well lane engineering according to claim 1, it is characterized in that：The two n-types arch
The spacing on top is 0.5~2m.
3. it is used for the method for protecting support of the prefabricated steel bracket of well lane engineering according to claim 1, it is characterized in that：The n-type vault
For n-type I-steel or n-type channel-section steel.
4. it is used for the method for protecting support of the prefabricated steel bracket of well lane engineering according to claim 3, it is characterized in that：The I-steel
Model 9# I-steel.
5. it is used for the method for protecting support of the prefabricated steel bracket of well lane engineering according to claim 3, it is characterized in that：The type of the channel-section steel
Number it is 12# channel-section steel steel.
6. it is used for the method for protecting support of the prefabricated steel bracket of well lane engineering according to claim 1, it is characterized in that：The base angle backing plate
Length, width and height be respectively 150mm, 100mm and 50mm.
7. it is used for the method for protecting support of the prefabricated steel bracket of well lane engineering according to claim 1, it is characterized in that：The connecting rod is
Steel pipe, a diameter of 40mm of steel pipe.
8. it is used for the method for protecting support of the prefabricated steel bracket of well lane engineering according to claim 1, it is characterized in that：The round log it is straight
Footpath is 100mm, length 2000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990299.3A CN107676111A (en) | 2017-10-23 | 2017-10-23 | A kind of method for protecting support for the prefabricated steel bracket of well lane engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990299.3A CN107676111A (en) | 2017-10-23 | 2017-10-23 | A kind of method for protecting support for the prefabricated steel bracket of well lane engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676111A true CN107676111A (en) | 2018-02-09 |
Family
ID=61142066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710990299.3A Pending CN107676111A (en) | 2017-10-23 | 2017-10-23 | A kind of method for protecting support for the prefabricated steel bracket of well lane engineering |
Country Status (1)
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|---|---|
| CN (1) | CN107676111A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110051968A (en) * | 2009-11-11 | 2011-05-18 | 주식회사 포스코 | Tunnel structure using steel frames |
| CN202544879U (en) * | 2012-02-23 | 2012-11-21 | 山东盛大矿业股份有限公司 | High-strength roadway support device |
| CN102979534A (en) * | 2012-12-11 | 2013-03-20 | 安徽恒源煤电股份有限公司 | TU shed support process |
| CN202882939U (en) * | 2012-09-25 | 2013-04-17 | 山东大学 | Deep soft rock roadway three-dimensional prestress wire backfilling support retaining and protecting system |
| CN203022777U (en) * | 2013-01-17 | 2013-06-26 | 贵州盘江精煤股份有限公司 | Shed erection support at underground fork or tunnel opening |
| CN103470279A (en) * | 2013-09-15 | 2013-12-25 | 湘潭大学 | U-shaped steel bracket capable of actively controlling deformation of surrounding rocks |
| CN104832187A (en) * | 2015-04-03 | 2015-08-12 | 山东大学 | High-stress soft rock roadway supporting system with metal mesh backplane and construction method |
| WO2015179883A2 (en) * | 2014-05-08 | 2015-11-26 | Elbroc Mining Products (Pty) Ltd | Support arrangement |
| CN106677797A (en) * | 2017-03-13 | 2017-05-17 | 安徽理工大学 | U-shaped steel composite support structure for deep dynamic pressure soft rock roadway and construction method of U-shaped steel composite support structure |
-
2017
- 2017-10-23 CN CN201710990299.3A patent/CN107676111A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110051968A (en) * | 2009-11-11 | 2011-05-18 | 주식회사 포스코 | Tunnel structure using steel frames |
| CN202544879U (en) * | 2012-02-23 | 2012-11-21 | 山东盛大矿业股份有限公司 | High-strength roadway support device |
| CN202882939U (en) * | 2012-09-25 | 2013-04-17 | 山东大学 | Deep soft rock roadway three-dimensional prestress wire backfilling support retaining and protecting system |
| CN102979534A (en) * | 2012-12-11 | 2013-03-20 | 安徽恒源煤电股份有限公司 | TU shed support process |
| CN203022777U (en) * | 2013-01-17 | 2013-06-26 | 贵州盘江精煤股份有限公司 | Shed erection support at underground fork or tunnel opening |
| CN103470279A (en) * | 2013-09-15 | 2013-12-25 | 湘潭大学 | U-shaped steel bracket capable of actively controlling deformation of surrounding rocks |
| WO2015179883A2 (en) * | 2014-05-08 | 2015-11-26 | Elbroc Mining Products (Pty) Ltd | Support arrangement |
| CN104832187A (en) * | 2015-04-03 | 2015-08-12 | 山东大学 | High-stress soft rock roadway supporting system with metal mesh backplane and construction method |
| CN106677797A (en) * | 2017-03-13 | 2017-05-17 | 安徽理工大学 | U-shaped steel composite support structure for deep dynamic pressure soft rock roadway and construction method of U-shaped steel composite support structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180209 |
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| RJ01 | Rejection of invention patent application after publication |