CN104481551B - Carboniferous System weak seam method for protecting support - Google Patents
Carboniferous System weak seam method for protecting support Download PDFInfo
- Publication number
- CN104481551B CN104481551B CN201410647627.6A CN201410647627A CN104481551B CN 104481551 B CN104481551 B CN 104481551B CN 201410647627 A CN201410647627 A CN 201410647627A CN 104481551 B CN104481551 B CN 104481551B
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- China
- Prior art keywords
- type steel
- steel arch
- employing
- weak seam
- anchor
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- 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
- 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
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- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Abstract
The present invention is specially a kind of Carboniferous System weak seam method for protecting support, solves the problem that existing weak seam uses permanent support to there is constructional difficulties impact driving.A, the total length twisted steel anchor rod of employing Φ 22 lengthen and anchor into row gib；B, the round steel of 24 Φ 36 × 2m of employing are draw point, penetrate incompetent bed and fix unconsolidated rock；C, top board perforating discharge water, take U29 type steel arch, and water is fully incorporated drainage ditch comprehensive control；D, in U29 type steel arch integrated poured concrete, and bottom every 1m construct a boring deep for 2m, discharge Bottom Pressure；It is provided with crossbeam between bottom e, U29 type steel arch.The present invention controls the pit shaft displacement deformation amount in soft rock section, eliminates base plate and beats the improvement operations such as anchor pole, floor grouting and pot hole blasting.
Description
Technical field
The present invention relates to underground coal mine method for protecting support, be specially a kind of Carboniferous System weak seam method for protecting support.
Background technology
There is a large amount of high inclination-angle weak seam in mine, fault throw is big, and basement rock buries shallow, and cranny development is many, accepts Atmospheric precipitation and infiltrates, and in making field with "nine squares", casing is aqueous abundant.Owing in district, the water yield is big, centrifugation rock stratum, mud stone, incompetent bed are many, and whole roadway surrounding rock convergent deformation in the case of meeting water is violent, and stability reduces, and cause execution conditions complicated, roadway support difficulty, and driving speed is slow, and safety can not get ensureing, need to carry out supporting.
At present, using permanent support more, specially use the mode of anchor shaft anchor cable+net+whitewashing to carry out supporting, shaft construction is the most difficult, has a strong impact on shaft excavation.
Summary of the invention
The present invention is to solve that existing weak seam uses the problem that permanent support exists constructional difficulties impact driving, it is provided that a kind of Carboniferous System weak seam method for protecting support.
The present invention adopts the following technical scheme that realization: Carboniferous System weak seam method for protecting support, employing following steps realize: a, the total length twisted steel anchor rod of employing Φ 22 lengthen and anchor into row gib；B, the round steel of 24 Φ 36 × 2m of employing are draw point, penetrate incompetent bed and fix unconsolidated rock；C, top board perforating discharge water, take U29 type steel arch, and water is fully incorporated drainage ditch comprehensive control；D, in U29 type steel arch integrated poured concrete, and bottom every 1m construct a boring deep for 2m, discharge Bottom Pressure；It is provided with crossbeam between bottom e, U29 type steel arch.
This support pattern is by adding crossbeam and integrated poured, and effectively prevention two helps pressure to be moved into the pucking problems caused；Simultaneously by boring release pressure, the generation of preventing secondary pucking phenomenon, overcome the problem that existing weak seam uses permanent support to there is constructional difficulties impact driving.
The support pattern that the present invention uses effectively reduces the deformation velocity of country rock, control the pit shaft displacement deformation amount in soft rock section, eliminate base plate and beat the improvement operations such as anchor pole, floor grouting and pot hole blasting, while cost-effective, improve drivage efficiency, there is technique and be simple and convenient to operate and the advantage of low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1-total length twisted steel anchor rod, 2-draw point, 3-U29 type steel arch, 4-crossbeam.
Detailed description of the invention
Carboniferous System weak seam method for protecting support, uses following steps to realize: a, the total length twisted steel anchor rod 1 of employing Φ 22 lengthen and anchor into row gib；B, the round steel of 24 Φ 36 × 2m of employing are draw point 2, penetrate incompetent bed and fix unconsolidated rock；C, top board perforating discharge water, take U29 type steel arch 3, and water is fully incorporated drainage ditch comprehensive control；D, in U29 type steel arch 3 integrated poured concrete, and bottom every 1m construct a boring deep for 2m, discharge Bottom Pressure；It is provided with crossbeam 4 between bottom e, U29 type steel arch 3.
Claims (1)
1. a Carboniferous System weak seam method for protecting support, it is characterised in that: use following steps to realize: a, the total length twisted steel anchor rod (1) of employing Φ 22 lengthen and anchor into row gib；B, the round steel of 24 Φ 36 × 2m of employing are draw point (2), penetrate incompetent bed and fix unconsolidated rock；C, top board perforating discharge water, take U29 type steel arch (3), and water is fully incorporated drainage ditch comprehensive control；D, in U29 type steel arch (3) integrated poured concrete, and bottom every 1m construct a boring deep for 2m, discharge Bottom Pressure；E, U29 type steel arch (3) are provided with crossbeam (4) between bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647627.6A CN104481551B (en) | 2014-11-17 | 2014-11-17 | Carboniferous System weak seam method for protecting support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647627.6A CN104481551B (en) | 2014-11-17 | 2014-11-17 | Carboniferous System weak seam method for protecting support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104481551A CN104481551A (en) | 2015-04-01 |
| CN104481551B true CN104481551B (en) | 2016-08-17 |
Family
ID=52756143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410647627.6A Active CN104481551B (en) | 2014-11-17 | 2014-11-17 | Carboniferous System weak seam method for protecting support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104481551B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895580B (en) * | 2015-05-14 | 2017-03-01 | 张晓德 | A kind of autologous method for protecting support of country rock of soft rock roadway and supporting are with stirring note rig |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT365299B (en) * | 1977-03-03 | 1981-12-28 | Seiz Rudolf | ROAD EXTENSION, ESPECIALLY FOR PITS |
| CN102200018B (en) * | 2011-05-10 | 2013-07-10 | 湖南省交通规划勘察设计院 | Bearing structure for reinforcing tunnel |
| CN102562093B (en) * | 2012-02-21 | 2014-10-15 | 山东盛大矿业股份有限公司 | Full-length anchoring supporting method with intensive resin anchor rod and anchor-shotcrete net |
| CN203321541U (en) * | 2013-06-25 | 2013-12-04 | 淮北市平远软岩支护工程技术有限公司 | Soft rock roadway supporting device |
| CN203742612U (en) * | 2014-03-12 | 2014-07-30 | 淮南矿业(集团)有限责任公司 | Rapid construction supporting system for deep coal mine roadway with weak and broken surrounding rock |
-
2014
- 2014-11-17 CN CN201410647627.6A patent/CN104481551B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104481551A (en) | 2015-04-01 |
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| C14 | Grant of patent or utility model | ||
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