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
- Authority
- CN
- China
- Prior art keywords
- type steel
- steel arch
- employing
- weak seam
- anchor
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000011435 rock Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005422 blasting Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
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
Also Published As
Publication number | Publication date |
---|---|
CN104481551A (en) | 2015-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104533467B (en) | A kind of high artesian, the method for protecting support in fault disruption zone tunnel | |
CN103899329B (en) | A kind of administering method of large deformation breaking surrounding rock tunnel | |
CN103498696B (en) | A kind of method from roadway in the roof grouting filling compacting goaf filling body | |
CN104389628B (en) | Landslide location tunnel reinforcement device and reinforced construction method | |
CN104863629A (en) | Method for extracting gas from separation layer below overlying strata, draining water and grouting through combined drill hole | |
CN101915108A (en) | Method for controlling floor heave of dynamic pressure tunnel | |
CN101270667A (en) | Surrounding rock supporting method for ultra-strong or strong or medium rock burst tunnel section deep imbedded in underground chamber | |
CN106049532A (en) | Supporting and retaining device for open excavation construction of comprehensive pipe gallery and construction method thereof | |
CN102022133A (en) | Regional gas underground high-pressure jet hole digging, pressure relief and outburst prevention method | |
CN103321233B (en) | The preparation method of groundwater resources retracting device in landslide deep layer draining and sliding mass | |
CN102155249A (en) | Method for supporting tunnel roof below mined-out area | |
CN103243721B (en) | Highrise Building With Raft Foundation and Core Walls Structure excavation construction method under Unfavorable geology condition | |
CN106703850A (en) | Novel hydraulic expanded recyclable anchor rod | |
CN104481551B (en) | Carboniferous System weak seam method for protecting support | |
CN101975074A (en) | Soft rock roadway anchored concrete filled steel tube anti-floor heave device and construction method thereof | |
CN205444232U (en) | Stock - gravity type infiltration retaining wall | |
CN204212177U (en) | A kind of double doing in the hole of stand column pile cheats diaphragm wall structure | |
CN109403349A (en) | A kind of upper flexible and lower rigid system of deep foundation pit support and its construction method | |
CN110030001B (en) | Construction method for mountain tunnel to go out of hole | |
CN205297608U (en) | Novel recoverable stock of hydraulic pressure inflation formula | |
CN204419187U (en) | Vertical deep supporting and protection structure | |
CN105484791A (en) | Comprehensive tunnel drainage, precipitation and pressure reduction construction method | |
CN201078234Y (en) | Integral hydraulic pressure steel sheet piling curtain of vertical shaft construction overflowing sand bed | |
CN102493436A (en) | Novel manual tunneling construction method of rectangular anti-slide pile | |
CN205688448U (en) | A kind of foundation pit support device utilizing karst fragmented rock body to reinforce bearing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |