CN106761753B - 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
- CN106761753B CN106761753B CN201710153492.1A CN201710153492A CN106761753B CN 106761753 B CN106761753 B CN 106761753B CN 201710153492 A CN201710153492 A CN 201710153492A CN 106761753 B CN106761753 B CN 106761753B
- 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.)
- Expired - Fee Related
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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention discloses a kind of thick seam slicing system lower leaf face layout of actual mining roadway method, includes the following steps：Identified sign reduces area on lower leaf face direction of propulsion, stress increases area and initial stress area, and stope drift active workings section and size are determined with service request according to function is used；At higher slice working face open-off cut rear, stress increases 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 using interior wrong formula arrangement and are mutually parallel, lower leaf face haulage way and lower leaf face tailgate are from lower leaf face open-off cut after higher slice roof arranges a distance, with higher slice roof in 7 ° of downward layered transitions of angle to entity seat earth, continue forward to arrange that lower leaf face haulage way and lower leaf face tailgate enter in the lower leaf coal seam under higher slice goaf along entity seat earth.
Description
Technical field
The present invention relates to a kind of layout of actual mining roadway methods, 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 3.5m or more is known as high seam, and the Shanxi group Permian System two1Coal seam thickness generally 5m with
On, coal resources reserves use greatly large cutting height workface with the higher mine of mechanization degree, and coal resources reserves it is small with it is mechanical
The lower mine of change degree then uses separate zone production.Roof caving after being exploited due to high seam higher slice and neighbouring coal column region
Stress concentration, lower leaf face stope drift active workings driving and supporting are difficult.Under normal circumstances, 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 increases 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 efficient production, challenge is brought to the exploitation of thick seam slicing system lower leaf face.
The present invention is complete according to stress relaxed area under higher slice work face goaf and initial stress area entity coal seam country rock
Roadway surrounding rock thought of social stability, by lower leaf face open-off cut design the higher slice working face open-off cut rear stress of primary rock reality
The areas Ti Mei, and lower leaf face open-off cut is arranged along higher slice roof, 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
Row, 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
With lower leaf face tailgate from lower leaf face open-off cut after higher slice roof arranges a distance, lower point
Layer working face haulage way and lower leaf face tailgate with higher slice roof in 7 ° of angles to lower leaf coal seam
Transition, to lower leaf bottom plate after along backplane enter higher slice work face goaf under lower leaf coal seam along.The high seam
Lower leaf face big cross section open-off cut is arranged in entity coal seam by separate zone production lower leaf face layout of actual mining roadway method
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, is conducive to conventional section and works
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.
Invention content
The present invention is based on thick seam slicing system lower leaf face open-off cut cross dimensions 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, by the way that lower leaf face open-off cut is arranged in higher slice working face open-off cut
Rear entity coal seam initial stress area, and lower leaf face open-off cut is arranged along higher slice roof, lower leaf face
Haulage way and lower leaf face tailgate are arranged using interior wrong formula, and lower leaf face haulage way and lower leaf work
Make that face tailgate is parallel, to realize purpose that thick seam slicing system lower leaf face surrounding rock of actual mining roadway is stablized.
To solve the above problems, a kind of thick seam slicing system lower leaf face layout of actual mining roadway method of the present invention,
It is adopted the technical scheme that：Identified sign reduces area on lower leaf face direction of propulsion, stress increases area and protolith is answered
Power area, according to the section and size for determining stope drift active workings using function and service request of stope drift active workings；In higher slice working face
Open-off cut rear stress increases area and the initial stress area of initial stress area boundary and arranges lower leaf along higher slice roof
Working face open-off cut；Lower leaf face haulage way and lower leaf face tailgate use 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 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 forward to arrange lower leaf face transport along entity seat earth
Gallery and lower leaf face tailgate enter in the lower leaf coal seam under higher slice goaf.
This method mainly includes the following steps that：
Step 1 is pushed away according to distribution curve of stress after high seam occurrence condition and higher slice exploitation in lower leaf face
Identified sign reduces area on into direction, stress increases area and initial stress area；
Step 2 determines that lower leaf face open-off cut section is rectangle, lower leaf face haulage way and lower leaf
Working face tailgate section is trapezoidal, and stope drift active workings cross dimensions is determined with service request according to function is used；
Step 3, at higher slice working face open-off cut rear, stress increases the stress of primary rock in area and initial stress area boundary
Area arranges that lower leaf face open-off cut, lower leaf face open-off cut are opened with higher slice working face and cut along higher slice roof
Eye is in parallel arrangement；
Step 4, lower leaf face haulage way and lower leaf face tailgate use interior wrong formula to arrange, and under
Division working face haulage way is parallel with lower leaf face tailgate, works from lower leaf face open-off cut to higher slice
The lower leaf face haulage way and lower leaf face tailgate in entity coal area are along higher slice coal seam between the open-off cut of face
After top plate arranges a distance, lower leaf face haulage way and lower leaf face tailgate are pushed up with higher slice coal seam
Plate is in 7 ° of downward layered transitions of angle to entity seat earth；
Step 5 continues forward to arrange that lower leaf face haulage way and lower leaf face return air are flat along seat earth
Lane enters in the lower leaf coal seam under higher slice work face goaf, when lower leaf face haulage way and lower leaf face
Tailgate with after mining district preparation roadway linking, completes 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 and lower leaf face open-off cut distance 25m or more.
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
It is layered the initial stress area in the entity coal seam of open-off cut rear, and is 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 is conducive 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.
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 present invention.
Fig. 2 is sectional view at the A of Fig. 1.
In figure：1 is lower leaf coal seam；2 be higher slice work face goaf；3 be higher slice working face open-off cut；4 be to answer
Power reduces area；5 be distribution curve of stress；6 be lower leaf face haulage way；7 increase area for stress；8 be initial stress area；
9 be lower leaf face open-off cut；10 be higher slice coal seam；11 be lower leaf face tailgate.
Specific implementation mode
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 present invention provides a kind of thick seam slicing system lower leaf face layout of actual mining roadway methods.
As shown in Fig. 1~2, specific implementation mode of the invention includes the following steps：
Step 1 is pushed away according to distribution curve of stress 5 after high seam occurrence condition and higher slice exploitation in lower leaf face
Identified sign reduces area 4 on into direction, stress increases area 7 and initial stress area 8；
Step 2 determines that 9 section of lower leaf face open-off cut is rectangle, lower leaf face haulage way 6 and lower point
11 section of layer working face tailgate is trapezoidal, and stope drift active workings cross dimensions is determined with service request according to function is used；
Step 3 increases the protolith in area 7 and 8 boundary of initial stress area in 3 rear stress of higher slice working face open-off cut
Stressed zone 8 is along 10 top plate of higher slice coal seam arrangement lower leaf face open-off cut 9, lower leaf face open-off cut 9 and higher slice
Working face open-off cut 3 is in parallel arrangement；
Step 4, lower leaf face haulage way 6 and lower leaf face tailgate 11 use interior wrong formula arrangement, and
Lower leaf face haulage way 6 is parallel with lower leaf face tailgate 11, from lower leaf face open-off cut 9 to upper point
The lower leaf face haulage way 6 and lower leaf face tailgate 11 in entity coal area are equal between floor working face open-off cut 3
After along higher slice coal seam, 10 top plate arranges a distance, lower leaf face haulage way 6 and lower leaf face tailgate
11 with 10 top plate of higher slice coal seam in 7 ° of downward layered transitions of angle to entity seat earth；
Step 5 continues forward to arrange lower leaf face haulage way 6 and lower leaf face along entity seat earth
Tailgate 11 enters in the lower leaf coal seam 1 under higher slice work face goaf 2, when 6 He of lower leaf face haulage way
Lower leaf face tailgate 11 with after mining district preparation roadway linking, completes thick seam slicing system lower leaf face time
Adopt roadway layout.
Further, in step 2,9 rectangular cross section width of lower leaf face open-off cut is more than 8m.
Further, in step 3, higher slice working face open-off cut 3 and 9 distance 25m of lower leaf face open-off cut with
On.
Further, in step 4, entity seat earth position is on 3 rear entity coal seam side of higher slice working face open-off cut
At boundary.
The present invention is not limited solely to the description of present embodiment, all within the spirits and principles of the present invention made by appoint
What modifications, equivalent substitutions and improvements etc., should all contain 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, which is characterized in that include the following steps：
Step 1, according to distribution curve of stress after high seam occurrence condition and higher slice exploitation, in lower leaf face propulsion side
Upward identified sign reduces area, stress increases area and initial stress area；
Step 2 determines that lower leaf face open-off cut section is rectangle, lower leaf face haulage way and lower leaf work
Face tailgate section is trapezoidal, and stope drift active workings cross dimensions is determined with service request according to function is used；
Step 3, at higher slice working face open-off cut rear, stress increases the initial stress area edge in area and initial stress area boundary
Higher slice roof arranges that lower leaf face open-off cut, lower leaf face open-off cut are in higher slice working face open-off cut
Parallel arrangement；
Step 4, lower leaf face haulage way and lower leaf face tailgate are arranged using interior wrong formula, and lower leaf
Working face haulage way is parallel with lower leaf face tailgate, is opened 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 between eye are cut, is first pushed up along higher slice coal seam
Plate arranges a distance, afterwards with higher slice roof in 7 ° of downward layered transitions of angle to entity seat earth；
Step 5, continue forward to arrange along seat earth lower leaf face haulage way and lower leaf face tailgate into
Enter in the lower leaf coal seam under higher slice work face goaf, when lower leaf face haulage way and lower leaf face return air
Gallery with after mining district preparation roadway linking, completes 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, special
Sign is, 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, special
Sign is, in step 3, higher slice working face open-off cut and lower leaf face open-off cut distance 25m or more.
4. a kind of thick seam slicing system lower leaf face layout of actual mining roadway method according to claim 1, special
Sign is, 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 CN106761753A (en) | 2017-05-31 |
| CN106761753B true 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) |
Families Citing this family (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 |
| 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 |
| CN110080767B (en) * | 2019-04-03 | 2020-11-10 | 太原理工大学 | Overlap joint arrangement method for layered mining working face of thick coal seam |
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 |
|---|
| 分层开采下分层综放工作面开切眼支护技术研究及应用;张运宪 等;《山东煤炭科技》;20100630(第6期);第132-133页 * |
| 采空区下综采工作面开切眼一次成巷支护技术;吴昕;《煤炭科学技术》;20150930;第43卷(第9期);第139-143页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106761753A (en) | 2017-05-31 |
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 | |
| 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 | |
| CN105370281A (en) | Layout method for lower slice of close distance coal seam group and low layer structure | |
| US20180195386A1 (en) | Parallel digging, mining and filling operation coal mining method for controlling overlaying strata fracture and surface subsidence | |
| CN106894816A (en) | Far field key stratum based on set square structural model cuts top release shield lane method | |
| CN102392642A (en) | Method for arranging roadways on coal-pillar-free stope | |
| CN104533419B (en) | Method for partial recovery of residual coal from wide coal pillar | |
| CN104929643A (en) | Top-bottom space reconstruction upward type cut-and-filling stoping method after high layering medium-length hole ore dropping | |
| CN106014410A (en) | Filling mining method for downward access part | |
| CN102094660B (en) | Integral high-strength flexible support method of roadway at large-inclined angle coal-seam longwall mining section | |
| CN109026000B (en) | A kind of steep-inclined thick coal seam is bowed pseudo- tiltedly arc inclined cuting layering longwall top coal caving method | |
| CN110359914A (en) | A kind of safe, inexpensive combined section mining methods of gently inclined medium thick orebody | |
| CN113756809A (en) | Load migration impact mine pressure prevention and control method for ground fracturing thick and hard rock stratum | |
| CN110080767A (en) | A kind of thick seam slicing system working face overlap joint method for arranging | |
| Zhang et al. | Geotechnical considerations for concurrent pillar recovery in close-distance multiple seams | |
| CN104675397B (en) | Fully-mechanized sublevel caving face section-free coal pillar mining method for thick coal layer | |
| CN104343453B (en) | Thick mineral deposit filling mining method in a kind of low-angle dip | |
| CN100590295C (en) | Three-section type stoping process for full-height mining of thick coal seam | |
| CN205135632U (en) | Lower leaf structure of coal seam group closely | |
| CN105715273A (en) | Arrangement form of lower slice roadways of ultra-thick hard coal | |
| CN104533417A (en) | Dual-system two-hardness short-wall coal seam mining 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 |
Granted publication date: 20180814 Termination date: 20210315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |