CN106761753A - A kind of thick seam slicing system lower leaf face layout of actual mining roadway method - Google Patents
A kind of thick seam slicing system lower leaf face layout of actual mining roadway method Download PDFInfo
- Publication number
- CN106761753A CN106761753A CN201710153492.1A CN201710153492A CN106761753A CN 106761753 A CN106761753 A CN 106761753A CN 201710153492 A CN201710153492 A CN 201710153492A CN 106761753 A CN106761753 A CN 106761753A
- Authority
- CN
- China
- Prior art keywords
- lower leaf
- leaf face
- face
- cut
- higher slice
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Abstract
The present invention discloses a kind of thick seam slicing system lower leaf face layout of actual mining roadway method, comprises the following steps：Identified sign reduction area, stress raise area and initial stress area on lower leaf face direction of propulsion, and stope drift active workings section and size are determined according to using function and service request；At higher slice working face open-off cut rear, stress raises area and arranges lower leaf face open-off cut along higher slice roof with initial stress area boundary initial stress area；Lower leaf face haulage way and lower leaf face tailgate are arranged and are parallel to each other using interior wrong formula, after lower leaf face haulage way and lower leaf face tailgate arrange a segment distance from lower leaf face open-off cut along higher slice roof, with higher slice roof in 7 ° of downward layered transitions of angle to entity seat earth, in continuing to arrange the lower leaf coal seam that lower leaf face haulage way and lower leaf face tailgate enter under higher slice goaf forward along entity seat earth.
Description
Technical field
The present invention relates to a kind of layout of actual mining roadway method, belong to mine down-hole tunnel arrangement and Surrounding Rock Control field, especially
It is related to mine down-hole thick seam slicing system lower leaf face layout of actual mining roadway method.
Background technology
Coal seam of the coal seam more than more than 3.5m is referred to as high seam, and the Shanxi group Permian System two1Coal seam thickness it is universal 5m with
On, coal resources reserves mine higher with mechanization degree greatly uses large cutting height workface, and coal resources reserves it is small with it is mechanical
The relatively low mine of change degree then uses separate zone production.Due to the roof caving after the exploitation of high seam higher slice and neighbouring coal column region
Stress concentration, lower leaf face stope drift active workings driving is difficult with supporting.Generally, lower leaf face open-off cut is equal
It is arranged in lower point that in the lower leaf coal seam breaking surrounding rock under higher slice goaf or higher slice working face rear stress raises area
In layer coal seam so that the driving of lower leaf face big cross section open-off cut is more difficult with supporting, seriously constrains mine safety
With efficiently production, challenge is brought to the exploitation of thick seam slicing system lower leaf face.
The present invention is complete with initial stress area entity coal seam country rock according to stress relaxed area under higher slice work face goaf
Roadway surrounding rock thought of social stability, by lower leaf face open-off cut design in higher slice working face open-off cut rear stress of primary rock reality
Ti Mei areas, and lower leaf face open-off cut is along higher slice roof arrangement, lower leaf face haulage way and lower leaf
Working face tailgate is using interior wrong formula arrangement, and lower leaf face haulage way and lower leaf face tailgate are flat
OK, from lower leaf face open-off cut to the lower leaf face haulage way in entity coal area higher slice working face open-off cut
After a segment distance being arranged with lower leaf face tailgate along higher slice roof from lower leaf face open-off cut, lower point
Layer working face haulage way and lower leaf face tailgate are with higher slice roof in 7 ° of angles to lower leaf coal seam
Transition, to lower leaf base plate after along backplane enter higher slice work face goaf under lower leaf coal seam in.The high seam
Separate zone production lower leaf face layout of actual mining roadway method, entity coal seam is arranged in by lower leaf face big cross section open-off cut
Initial stress area in higher slice coal seam, lower leaf face haulage way and lower leaf face tailgate are arranged in point
Stress relaxed area under layer work face goaf, has played big cross section open-off cut self, beneficial to the work of conventional section
The maintenance of face haulage way and tailgate, promotes the steady of thick seam slicing system lower leaf face surrounding rock of actual mining roadway
It is fixed.
The content of the invention
The present invention is based on thick seam slicing system lower leaf face open-off cut cross dimensions is big, working face haulage way with
The more broken supporting problem of working face tailgate country rock, proposes a kind of thick seam slicing system lower leaf face back production lane
Road method for arranging, it is intended to solve thick seam slicing system lower leaf face open-off cut, lower leaf face haulage way and under
The stabilization of division working face tailgate country rock, higher slice working face open-off cut is arranged in by by lower leaf face open-off cut
Rear entity coal seam initial stress area, and lower leaf face open-off cut is along higher slice roof arrangement, lower leaf face
Haulage way and lower leaf face tailgate are using interior wrong formula arrangement, and lower leaf face haulage way and lower leaf work
Make that face tailgate is parallel, to realize the purpose of thick seam slicing system lower leaf face surrounding rock of actual mining roadway stabilization.
To solve the above problems, a kind of thick seam slicing system lower leaf face layout of actual mining roadway method of the invention,
It is adopted the technical scheme that：Identified sign reduction area, stress rising area and protolith should on lower leaf face direction of propulsion
Power area, the section and size of stope drift active workings are determined according to use function and the service request of stope drift active workings；In higher slice working face
Open-off cut rear stress raises area and arranges lower leaf along higher slice roof with the initial stress area of initial stress area boundary
Working face open-off cut；Lower leaf face haulage way and lower leaf face tailgate are using interior wrong formula arrangement, and lower point
Layer working face haulage way is parallel with lower leaf face tailgate, from lower leaf face open-off cut to higher slice working face
The lower leaf face haulage way and lower leaf face tailgate in entity coal area are pushed up along higher slice coal seam between open-off cut
After plate arranges a segment distance, lower leaf face haulage way and lower leaf face tailgate with higher slice roof
In 7 ° of downward layered transitions of angle to entity seat earth；Continue arrangement lower leaf face forward along entity seat earth to transport
In the lower leaf coal seam that gallery and lower leaf face tailgate enter under higher slice goaf.
The method is mainly included the following steps that：
Step one, according to distribution curve of stress after high seam occurrence condition and higher slice exploitation, in lower leaf face propulsion side
Upward identified sign reduction area, stress raise area and initial stress area；
Step 2, determines lower leaf face open-off cut section for rectangle, and lower leaf face haulage way and lower leaf work
Face tailgate section is trapezoidal, and stope drift active workings cross dimensions is determined according to using function and service request；
Step 3, at higher slice working face open-off cut rear, stress raises the initial stress area edge in area and initial stress area boundary
Higher slice roof arranges lower leaf face open-off cut, and lower leaf face open-off cut is in higher slice working face open-off cut
Parallel arrangement；
Step 4, lower leaf face haulage way and lower leaf face tailgate are using interior wrong formula arrangement, and lower leaf
Working face haulage way is parallel with lower leaf face tailgate, is opened to higher slice working face from lower leaf face open-off cut
The lower leaf face haulage way and lower leaf face tailgate in entity coal area between eye are cut along higher slice roof
After arranging a segment distance, lower leaf face haulage way and lower leaf face tailgate are in higher slice roof
7 ° of downward layered transitions of angle are to entity seat earth；
Step 5, continues forward arrangement lower leaf face haulage way and lower leaf face tailgate enters along seat earth
Enter higher slice work face goaf under lower leaf coal seam in, when lower leaf face haulage way and lower leaf face return air
Gallery with mining district preparation roadway linking after, complete thick seam slicing system lower leaf face layout of actual mining roadway.
Further, in step 2, lower leaf face open-off cut rectangular cross section width is more than 8m.
Further, in step 3, higher slice working face open-off cut is with lower leaf face open-off cut apart from more than 25m.
Further, in step 4, entity seat earth position is on higher slice working face open-off cut rear entity coal seam side
At boundary.
The advantages of the present invention are：The present invention is according to stress relaxed area and original under higher slice work face goaf
The complete roadway surrounding rock thought of social stability of rock stressed zone entity coal seam country rock, lower leaf face big cross section open-off cut is arranged in
Initial stress area in layering open-off cut rear entity coal seam, and arranged along higher slice roof, lower leaf face transport
Gallery and lower leaf face tailgate are arranged in the stress relaxed area under higher slice goaf using interior wrong formula, have played big
Cross Section Open-off Cut self, beneficial to the maintenance of conventional section haulage way and tailgate, promotes high seam layering
Exploit the stabilization of lower leaf face surrounding rock of actual mining roadway.
Brief description of the drawings
Fig. 1 is to realize a kind of thick seam slicing system lower leaf face layout of actual mining roadway method schematic diagram of the invention.
Fig. 2 is profile at the A of Fig. 1.
In figure：1 is lower leaf coal seam；2 is higher slice work face goaf；3 is higher slice working face open-off cut；4 is to answer
Power reduction area；5 is distribution curve of stress；6 is lower leaf face haulage way；7 is that stress raises area；8 is initial stress area；
9 is lower leaf face open-off cut；10 is higher slice coal seam；11 is lower leaf face tailgate.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the accompanying drawings with example to this
Invention is described in further detail.
The invention provides a kind of thick seam slicing system lower leaf face layout of actual mining roadway method.
As shown in Fig. 1~2, specific embodiment of the invention comprises the following steps：
Step one, according to distribution curve of stress 5 after high seam occurrence condition and higher slice exploitation, in lower leaf face propulsion side
Upward identified sign reduction area 4, stress raises area 7 and initial stress area 8；
Step 2, determines that the section of lower leaf face open-off cut 9 is rectangle, lower leaf face haulage way 6 and lower leaf work
It is trapezoidal to make the section of face tailgate 11, and stope drift active workings cross dimensions is determined according to using function and service request；
Step 3, the stress of primary rock in area 7 and the boundary of initial stress area 8 is raised in the rear stress of higher slice working face open-off cut 3
Along the top board of higher slice coal seam 10 arrangement lower leaf face open-off cut 9, lower leaf face open-off cut 9 works with higher slice in area 8
Face open-off cut 3 is in parallel arrangement；
Step 4, lower leaf face haulage way 6 and lower leaf face tailgate 11 are using interior wrong formula arrangement, and lower point
Layer working face haulage way 6 is parallel with lower leaf face tailgate 11, from lower leaf face open-off cut 9 to higher slice work
Make the lower leaf face haulage way 6 and lower leaf face tailgate 11 in entity coal area between face open-off cut 3 along upper
After the layering top board of coal seam 10 arranges a segment distance, lower leaf face haulage way 6 and lower leaf face tailgate 11 are equal
With the top board of higher slice coal seam 10 in 7 ° of downward layered transitions of angle to entity seat earth；
Step 5, arrangement lower leaf face haulage way 6 and lower leaf face return air are continued forward along entity seat earth
In the lower leaf coal seam 1 that gallery 11 enters under higher slice work face goaf 2, when lower leaf face haulage way 6 and lower point
Layer working face tailgate 11 with mining district preparation roadway linking after, complete thick seam slicing system lower leaf face back production lane
Road is arranged.
Further, in step 2, the rectangular cross section width of lower leaf face open-off cut 9 is more than 8m.
Further, in step 3, higher slice working face open-off cut 3 and lower leaf face open-off cut 9 apart from 25m with
On.
Further, in step 4, entity seat earth position is on the rear entity coal seam side of higher slice working face open-off cut 3
At boundary.
The present invention is not limited solely to the description of present embodiment, it is all made within the spirit and principles in the present invention appoint
What modification, equivalent and improvement etc., all should be contained within protection scope of the present invention.
Claims (4)
1. a kind of thick seam slicing system lower leaf face layout of actual mining roadway method, it is characterised in that comprise the following steps：
Step one, according to distribution curve of stress after high seam occurrence condition and higher slice exploitation, in lower leaf face propulsion side
Upward identified sign reduction area, stress raise area and initial stress area；
Step 2, determines lower leaf face open-off cut section for rectangle, and lower leaf face haulage way and lower leaf work
Face tailgate section is trapezoidal, and stope drift active workings cross dimensions is determined according to using function and service request；
Step 3, at higher slice working face open-off cut rear, stress raises the initial stress area edge in area and initial stress area boundary
Higher slice roof arranges lower leaf face open-off cut, and lower leaf face open-off cut is in higher slice working face open-off cut
Parallel arrangement；
Step 4, lower leaf face haulage way and lower leaf face tailgate are using interior wrong formula arrangement, and lower leaf
Working face haulage way is parallel with lower leaf face tailgate, is opened to higher slice working face from lower leaf face open-off cut
The lower leaf face haulage way and lower leaf face tailgate in entity coal area between eye are cut along higher slice roof
After arranging a segment distance, lower leaf face haulage way and lower leaf face tailgate are in higher slice roof
7 ° of downward layered transitions of angle are to entity seat earth；
Step 5, continues forward arrangement lower leaf face haulage way and lower leaf face tailgate enters along seat earth
Enter higher slice work face goaf under lower leaf coal seam in, when lower leaf face haulage way and lower leaf face return air
Gallery with mining district preparation roadway linking after, complete thick seam slicing system lower leaf face layout of actual mining roadway.
2. a kind of thick seam slicing system lower leaf face layout of actual mining roadway method according to claim 1, it is special
Levy and be, in step 2, lower leaf face open-off cut rectangular cross section width is more than 8m.
3. a kind of thick seam slicing system lower leaf face layout of actual mining roadway method according to claim 1, it is special
Levy and be, in step 3, higher slice working face open-off cut is with lower leaf face open-off cut apart from more than 25m.
4. a kind of thick seam slicing system lower leaf face layout of actual mining roadway method according to claim 1, it is special
Levy and be, in step 4, entity seat earth position is in higher slice working face open-off cut rear entity coal seam boundary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710153492.1A CN106761753B (en) | 2017-03-15 | 2017-03-15 | A kind of thick seam slicing system lower leaf face layout of actual mining roadway method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710153492.1A CN106761753B (en) | 2017-03-15 | 2017-03-15 | A kind of thick seam slicing system lower leaf face layout of actual mining roadway method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761753A true CN106761753A (en) | 2017-05-31 |
| CN106761753B CN106761753B (en) | 2018-08-14 |
Family
ID=58962142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710153492.1A Expired - Fee Related CN106761753B (en) | 2017-03-15 | 2017-03-15 | A kind of thick seam slicing system lower leaf face layout of actual mining roadway method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761753B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956467A (en) * | 2017-11-20 | 2018-04-24 | 中国矿业大学(北京) | A kind of high seam pre-draining borehole parameter optimization and the method for extracting result assessment |
| CN108643909A (en) * | 2018-04-19 | 2018-10-12 | 山东科技大学 | A kind of working face extraction tunnel initating optimization of region method |
| CN110080767A (en) * | 2019-04-03 | 2019-08-02 | 太原理工大学 | A kind of thick seam slicing system working face overlap joint method for arranging |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1219908A (en) * | 1967-09-13 | 1971-01-20 | Gullick Dobson Ltd | Improvements in or relating to advancing mine roof supports |
| US4030752A (en) * | 1976-03-08 | 1977-06-21 | Atlantic Richfield Company | Longwall mining of thick underground mineral seams |
| US4340254A (en) * | 1979-02-14 | 1982-07-20 | Tatabanyai Szenbanyak | Method of mining heavy coal seams in two or more benches |
| SU1180503A1 (en) * | 1980-05-30 | 1985-09-23 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Горной Геомеханики И Маркшейдерского Дела | Method of driving entry mine workings |
| SU1298381A1 (en) * | 1983-08-12 | 1987-03-23 | Институт горного дела им.А.А.Скочинского | Method of hydromechanical mining of steep coal seams |
| CN1558090A (en) * | 2004-02-10 | 2004-12-29 | 中国矿业大学（北京校区） | Three step type stope technique for thick coal seam overall height mining |
| CN103362511A (en) * | 2013-07-25 | 2013-10-23 | 山东科技大学 | Steep medium-thickness coal seam stepped coal pillar-free coal mining method |
| CN203452798U (en) * | 2013-08-26 | 2014-02-26 | 神华集团有限责任公司 | Coal mining roadway |
| CN105370281A (en) * | 2015-10-10 | 2016-03-02 | 天地科技股份有限公司 | Layout method for lower slice of close distance coal seam group and low layer structure |
-
2017
- 2017-03-15 CN CN201710153492.1A patent/CN106761753B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1219908A (en) * | 1967-09-13 | 1971-01-20 | Gullick Dobson Ltd | Improvements in or relating to advancing mine roof supports |
| US4030752A (en) * | 1976-03-08 | 1977-06-21 | Atlantic Richfield Company | Longwall mining of thick underground mineral seams |
| US4340254A (en) * | 1979-02-14 | 1982-07-20 | Tatabanyai Szenbanyak | Method of mining heavy coal seams in two or more benches |
| SU1180503A1 (en) * | 1980-05-30 | 1985-09-23 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Горной Геомеханики И Маркшейдерского Дела | Method of driving entry mine workings |
| SU1298381A1 (en) * | 1983-08-12 | 1987-03-23 | Институт горного дела им.А.А.Скочинского | Method of hydromechanical mining of steep coal seams |
| CN1558090A (en) * | 2004-02-10 | 2004-12-29 | 中国矿业大学（北京校区） | Three step type stope technique for thick coal seam overall height mining |
| CN103362511A (en) * | 2013-07-25 | 2013-10-23 | 山东科技大学 | Steep medium-thickness coal seam stepped coal pillar-free coal mining method |
| CN203452798U (en) * | 2013-08-26 | 2014-02-26 | 神华集团有限责任公司 | Coal mining roadway |
| CN105370281A (en) * | 2015-10-10 | 2016-03-02 | 天地科技股份有限公司 | Layout method for lower slice of close distance coal seam group and low layer structure |
Non-Patent Citations (2)
| Title |
|---|
| 吴昕: "采空区下综采工作面开切眼一次成巷支护技术", 《煤炭科学技术》 * |
| 张运宪 等: "分层开采下分层综放工作面开切眼支护技术研究及应用", 《山东煤炭科技》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956467A (en) * | 2017-11-20 | 2018-04-24 | 中国矿业大学(北京) | A kind of high seam pre-draining borehole parameter optimization and the method for extracting result assessment |
| CN108643909A (en) * | 2018-04-19 | 2018-10-12 | 山东科技大学 | A kind of working face extraction tunnel initating optimization of region method |
| CN108643909B (en) * | 2018-04-19 | 2019-11-26 | 山东科技大学 | A kind of working face extraction tunnel initating optimization of region method |
| CN110080767A (en) * | 2019-04-03 | 2019-08-02 | 太原理工大学 | A kind of thick seam slicing system working face overlap joint method for arranging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106761753B (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10012080B2 (en) | Skip-mining type wangeviry stope branch roadway filling and coal mining method | |
| CN101749018B (en) | Coal mining method with direct coal pillar recovery | |
| CN105370281A (en) | Layout method for lower slice of close distance coal seam group and low layer structure | |
| CN108952716B (en) | Thick coal seam longwall working face multi-lane arrangement method | |
| CN106761753B (en) | A kind of thick seam slicing system lower leaf face layout of actual mining roadway method | |
| CN106894816A (en) | Far field key stratum based on set square structural model cuts top release shield lane method | |
| CN104533419B (en) | Method for partial recovery of residual coal from wide coal pillar | |
| CN103485786B (en) | A kind of half-edge coal seam moves towards longwall machinery and melts mining method | |
| AU2020100380A4 (en) | Asymmetric Support Technology Using Rock And Cable Bolts For Gob-Side Entry Driven Under Gob Edge With Internally Split-Level Longwall Layout In Mining Of Inclined Extra-Thick Coal Seams | |
| CN109236363A (en) | A kind of shortwall block formula filling coal mining method | |
| CN109026000B (en) | A kind of steep-inclined thick coal seam is bowed pseudo- tiltedly arc inclined cuting layering longwall top coal caving method | |
| CN105927269A (en) | Gas control method of outburst coal seam | |
| CN107905807A (en) | A kind of future small coal pillar comprehensive mechanical coal mining supporting construction and construction method | |
| Zhang et al. | Geotechnical considerations for concurrent pillar recovery in close-distance multiple seams | |
| CN109630112A (en) | A kind of N00 mining codes for cutting top filling | |
| CN205135632U (en) | Lower leaf structure of coal seam group closely | |
| CN105201508A (en) | Backstoping method for continuous miner under hard roof condition of thick coal seam | |
| CN105240012A (en) | F-type section coal-mining method allowing commingled mining of coal pillars | |
| CN110080767A (en) | A kind of thick seam slicing system working face overlap joint method for arranging | |
| CN206319882U (en) | A kind of steep-inclined thick coal seam moves towards longwell longwall top coal caving dynamic segmentation taking and placing system | |
| CN104533417A (en) | Dual-system two-hardness short-wall coal seam mining method | |
| CN105156116B (en) | A kind of stope of coal mines tunnel design and construction method | |
| CN106907153A (en) | Thin bedrock high-seam working face large section cuts a driving method | |
| CN108894783B (en) | A kind of half-edge coal seam paste body filling coal-mining technique | |
| CN106837332B (en) | Mechanization step room and pillar stoping |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180814 Termination date: 20210315 |