CN109595016A - False top construction method is exploited to admission passage filling under one kind - Google Patents
False top construction method is exploited to admission passage filling under one kind Download PDFInfo
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- CN109595016A CN109595016A CN201811608204.8A CN201811608204A CN109595016A CN 109595016 A CN109595016 A CN 109595016A CN 201811608204 A CN201811608204 A CN 201811608204A CN 109595016 A CN109595016 A CN 109595016A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
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- 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
本发明提供了一种下向进路充填开采假顶构筑方法，包括以下步骤：矿体构成要素：矿体沿走向布置，且脉内进路也沿走向布置；采准、切割矿体；回采；假顶构筑：采场回采结束后，立即在进路底铺设残矿，在所述残矿上铺设钢筋，所述钢筋形成钢筋网，并在所述钢筋网上预留钢筋，并折弯，用充填料充填并接顶，待充填完毕之后再将预留的钢筋拉直，下边折成勾，等下一分层铺网时，用钢筋与上一分层预留的折成勾的钢筋相连。本发明主要用于矿岩不稳固或极不稳固的矿体，克服了现有技术中存在的下向进路充填开采中顶板构筑为水平或者呈大角度倒八字形状，其承载能力相对较差，而且控顶时间较短的缺陷。
The invention provides a method for constructing a false roof by filling and mining with a downward approach, comprising the following steps: ore body constituent elements: the ore body is arranged along the strike, and the access route within the vein is also arranged along the strike; the mining and cutting of the ore body; ; false roof construction: after the stope mining is completed, immediately lay residual ore at the bottom of the road, lay steel bars on the residual ore, and the steel bars form a steel mesh, and reserve steel bars on the steel mesh, and bend them, Fill and connect the top with filling material. After the filling is completed, straighten the reserved steel bars, and fold the lower side into hooks. connected. The invention is mainly used for unstable or extremely unstable ore bodies, and overcomes the fact that the roof is constructed horizontally or in the shape of a large-angle inverted figure in the downward approach filling and mining existing in the prior art, and its bearing capacity is relatively poor. , and the defect of short top control time.
Description
Technical field
The present invention relates to mining technique fields, exploit false top construction method to admission passage filling more particularly, under one kind.
Background technique
It is lower to access back-filling method be suitable for ore value is high, ore-rock is soft, earth's surface and overlying rock need it is to be protected
Deposit mining.Since ore-rock is soft, in order to guarantee safety coal extraction, need manually to construct false top to bear top loose rock mass and fill
Fill out the load of body.In Man-made False construction method, experience is constructed on most Reference Design handbook or adjacent mine vacation top.It is easy to make
Not high enough and then influence resource the safe retrieving at false top intensity, and then production efficiency is caused to reduce.
Patent No. " ZL201721371238.0 ", that records in entitled " large-inclination-angle coal bed Man-made False facility " is artificial
The lower surface of top plate is concordant with coal working face top plate, and artificial roof is fixed with crossbeam, and anchor pole is arranged on crossbeam, and anchor pole front end is beaten
Enter and leak at top in rock stratum, end of anchor rod sockets crossbeam, and sprag is provided with above crossbeam, and sprag is supported at crossbeam and leakage top
Between rock stratum, steel wire is covered in rock layer surface.Man-made False bottom plate is flat in such mounting means, and bearing capacity is opposite
It is poor, it just needs to encrypt steel mesh to improve bearing capacity, consumes lot of materials, and complex manufacturing technology.
Patent No. " ZL201110232081.4 ", entitled " a kind of flat-bottom structure with steel reinforced concrete structure artificial vacation top has
The Man-made False recorded in foundation sublevel caving method " is poured by the diamond shape steel mesh and concrete of bottom bottom fashioned iron rest and upper layer
Layer composition is filled, bottom fashioned iron carries out welding with top mat and forms inverted eight like, this Man-made False construction complexity, still
Bearing capacity is also relatively poor, and the control top time is also shorter
Summary of the invention
The purpose of the present invention is to provide false top construction method is exploited to admission passage filling under one kind, to solve in the prior art
Into admission passage filling exploitation, top plate is constructed as level or is in that wide-angle is inverted eight like, and bearing capacity is relatively under existing
Difference, and the technical problem that the control top time is shorter.
To achieve the above object, the present invention provides following technical schemes:
False top construction method is exploited to admission passage filling under one kind provided by the invention, comprising the following steps:
S1, ore body constituent element: ore body across pitch arrangement, and interior route also arrange by across pitch；
S2, quasi-, cutting ore body is adopted；
S3, back production；
S4, false top are constructed: after stope mining, it be laid with residual mine at route bottom immediately, is laid with reinforcing bar in the residual mine,
The reinforcing bar forms steel mesh, and the reserved steel bar on the steel mesh, and bending, and top is filled and connect with filling material, to be filled
After finishing reserved reinforcement metal straightening is converted into hook again below, when waiting next layering lapping, is reserved with reinforcing bar and a upper layering
The reinforcing bar for being converted into hook is connected.
Preferably, the reinforcing bar includes thick muscle and thin muscle, and the thick muscle and the thin muscle are criss-cross, forms the reinforcing bar
Net.
Preferably, the thick muscle is longitudinally arranged, the thin muscle lateral arrangement.
Preferably, the reserved reinforcing bar is located at the middle part of the steel mesh.
Preferably, the reserved steel-bar arrangement is the thick muscle.
Preferably, the hook part for being converted into the reinforcing bar of hook is symmetrical arranged.
Preferably, it is first filled with the filling material of cement-sand ratio 1:4, is then filled with the filling material of cement-sand ratio 1:8
It fills out.
Preferably, described to adopt quasi-, cutting ore body technique include ore body lower wall driving exploiting field ramp, from the exploiting field slope
Road tunnels slice drift, from slice drift driving layered-liaison tunnel to ore body, and Slice by slice cutting tunnel is tunneled in ore body,
It prepares for driving route.
Preferably, mine chute is tunneled from ore body lower wall drift, extremely from lower wall country rock driving return air filling well
Cutting work is adopted in upper middle section, completion.
Preferably, the process for stoping includes from cutting tunnel along orebody trend, and Mining entrance is tunneled at the both ends Xiang Caiqu,
Every back production, driving uses drill jumbo, and ore removal uses electric LHD.
Exploiting false top construction method compared with the existing technology to admission passage filling under one kind provided by the invention has following
Technical effect:
The false top that this method is constructed is laid with residual mine using at route bottom, and reinforcing bar is laid in residual mine, and reinforcing bar forms steel mesh,
And the reserved steel bar on steel mesh, and bending, top is filled and connect with filling material, and the reinforcing bar to be filled that will reserve again later that finishes is drawn
Directly, it is converted into hook below, when waiting next layering lapping, is connected with the reinforcing bar reinforcing bar that is converted into hook reserved with a upper layering, to make
The false top of upper and lower two layerings can connect together, that is, the intensity for improving false top also improves its stability, be mainly used for ore-rock
Built on the sand or extremely unsteady ore body, the lower top plate into admission passage filling exploitation existing in the prior art is overcome to construct as level
Or it is inverted eight like in wide-angle, bearing capacity is relatively poor, and the defect that the control top time is shorter.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural front view of the production zone of an embodiment of the present invention；
Fig. 2 is the structural side view of the production zone of an embodiment of the present invention；
Fig. 3 is the structure top view of the production zone of an embodiment of the present invention；
Fig. 4 is the top view on the steel mesh vacation top of an embodiment of the present invention；
Fig. 5 is the first state main view on the steel mesh vacation top of an embodiment of the present invention；
Fig. 6 is the second state main view on the steel mesh vacation top of an embodiment of the present invention.
In figure:
101, level haulage gallery 102, middle section Chuan Mai；103, exploiting field ramp；104, slice drift；105, layering contact
Road；106, drop shaft connecting taxiway；107, drop shaft；108, return air fill pass；109, steel mesh vacation top；110, tailing cemented filling
Body；111, thick muscle；112, thin muscle.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
In the description of the present invention, it is to be understood that, term " center ", " length ", " width ", " height ", "upper",
The orientation of instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " side " or
Positional relationship is to be merely for convenience of description of the present invention and simplification of the description based on attached orientation or positional relationship shown in FIG. 1, without
It is that the equipment of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
The gallery is the entry not communicated directly with ground, and long axis direction is substantially parallel with orebody trend.Position
It is reef drift in ore body, is fringedrift in country rock.The gradient of gallery is true according to the requirement of transport and draining
It is fixed, generally 3 ‰~5 ‰.
Described to wear arteries and veins, English name: transverse drift is a kind of investigation method of probing engineering.It is mainly used for
Ore body position is controlled, orebody thickness is disclosed, understands ore composition and Grade change, and finds out the contact relation of ore body and country rock
Deng.Wearing arteries and veins is from along the pulse or crossdrift is tunneled to ore body and ground is without a kind of directly exported adit.It is required that vertical ore body
Move towards driving, with understand ore body and its top, floor rocks thickness direction variation.Wearing arteries and veins is to obtain geologic information and sample
Main tunnel.Therefore, have to direction, specification, interval, depth and the flatness in sampling work face etc. of wearing arteries and veins stringenter
It is required that.
The ramp refers to the ramp way that underground is entered and left for the trackless equipment that passes through, transport ore and trackless equipment.
The connecting taxiway is the tunnel for entering stope from courtyard for personnel, is called pavement.
The drop shaft refers to the tunnel using self weight rolling ore from top to bottom.It is being opened up by adits or the mine of shaft development
Mountain is widely applied.Be accustomed to there are two types of signified drop shafts: one is relay ore or barren rock to lower stage for the top bench
Or lower part ore storage bin claims main chute, it belongs to auxiliary development work for one or more stage services；Another kind is for stope
Ore is inside relayed to level haulageway, for the title Stope chute of one or more stope services, the latter belongs to development heading.
Fig. 1 is the structural front view of the production zone of an embodiment of the present invention, and Fig. 2 is opening for an embodiment of the present invention
The structural side view in exploiting field domain, Fig. 3 are the structure top views of the production zone of an embodiment of the present invention, and Fig. 4 is the present invention one
The top view on the steel mesh vacation top of kind embodiment, Fig. 5 is the first state main view on the steel mesh vacation top of an embodiment of the present invention
Figure, Fig. 6 is the second state main view on the steel mesh vacation top of an embodiment of the present invention.
As shown in figs. 1 to 6, false top construction method is exploited to admission passage filling under one kind, comprising the following steps:
S1, ore body constituent element: ore body across pitch arrangement, long 75~100m, width are orebody thickness, foundation 5m, segmentation height
9~12m, layer height 4m are spent, route across pitch arrangement, 4 × 4m of route section in ore body；
S2, quasi-, cutting engineering is adopted: in ore body lower wall tunnels level haulage gallery 101, arteries and veins 102 and exploiting field slope are worn in middle section
Road 103 tunnels slice drift 104 every 9~12m (height of lift) from exploiting field ramp 103, from the driving point of slice drift 104
Layer connecting taxiway 105 tunnels Slice by slice cutting tunnel to ore body in ore body, prepares for driving route, along the pulse from ore body lower wall
Tunnelling drop shaft connecting taxiway 106 and drop shaft 107 tunnel the supreme middle section of return air fill pass 108 from lower wall country rock, and completion, which is adopted, cuts
Work；
S3, process for stoping: from cutting tunnel along orebody trend, the both ends Xiang Caiqu excavated section is the Mining entrance of 4 × 4m,
It is spaced back production, driving uses drill jumbo, and ore removal uses electric LHD.
S4, false top are constructed: after stope mining, being laid with the thick residual mine of 0.2m at route bottom immediately, be laid in thick residual mine
112 φ 6mm of thick 111 φ 12mm of muscle and thin muscle, net degree are the steel mesh of 250 × 250mm, and reserve 20cm's in the middle part of steel mesh
Thick muscle 111, and bending；0.5m height is filled with the filling material of cement-sand ratio 1:4, remaining dead zone is used cement-sand ratio 1:8 filling material instead and filled
Top is filled out and connects, the reserved thick muscle 111 of 20cm is straightened again later for be filled finish, and is converted into hook below；
As shown in figures 4-6, when waiting next layering lapping, it is connected with the thick muscle 111 thick muscle 111 reserved with a upper layering, shape
At steel mesh vacation top 109, the steel mesh vacation top 109 of upper and lower two layerings is enable to connect together in this way, that is, improves false top
Intensity also improves its stability.
Wherein, in order to save filling cost and guarantee the false stability pushed up simultaneously, the filling material of cement-sand ratio 1:4 is first used
Filling, then in the filling material filling with cement-sand ratio 1:8, sand-lime is Cemented Filling 110.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811608204.8A CN109595016A (en) | 2018-12-27 | 2018-12-27 | False top construction method is exploited to admission passage filling under one kind |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811608204.8A CN109595016A (en) | 2018-12-27 | 2018-12-27 | False top construction method is exploited to admission passage filling under one kind |
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| CN201811608204.8A Pending CN109595016A (en) | 2018-12-27 | 2018-12-27 | False top construction method is exploited to admission passage filling under one kind |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118089A (en) * | 2019-05-23 | 2019-08-13 | 新疆大学 | A kind of mining FRP grid-gangue-self-compacting concrete mat and its construction method |
| CN111425247A (en) * | 2020-03-27 | 2020-07-17 | 北京矿冶科技集团有限公司 | Downward access filling body false roof with built-in prefabricated metal mesh reinforcing structure and construction method thereof |
| CN111456735A (en) * | 2020-04-17 | 2020-07-28 | 山东科技大学 | Method for filling false roof without interval column and maintaining stability of downward single access |
| CN111456736A (en) * | 2020-04-17 | 2020-07-28 | 山东科技大学 | A method for maintaining the stability of the down-flow single-pass filling false roof and recovering the inter-column |
| CN111561318A (en) * | 2020-04-29 | 2020-08-21 | 北京科技大学 | Artificial false roof construction method capable of realizing pre-supporting effect |
| CN111828008A (en) * | 2020-07-31 | 2020-10-27 | 驰宏科技工程股份有限公司 | Filling mining method for downward layered herringbone access arrangement |
| CN113738367A (en) * | 2021-09-02 | 2021-12-03 | 北京科技大学 | A downward filling mining method for complex crushing steeply inclined thin veins with subsection collapse |
| CN113833497A (en) * | 2021-10-21 | 2021-12-24 | 北京金诚信矿山技术研究院有限公司 | Arrangement method and arrangement structure of preparation layer for downward single-route type cut-and-fill mining |
| CN114412551A (en) * | 2021-12-20 | 2022-04-29 | 江西理工大学 | Downward horizontal drift full-tailing cemented filling mining method for stoping ore body |
| CN114592868A (en) * | 2022-03-09 | 2022-06-07 | 长沙矿山研究院有限责任公司 | Ore mining structure and method under extremely-broken ore body condition |
| CN115163070A (en) * | 2022-06-14 | 2022-10-11 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Downward mining method suitable for steeply inclined thin ore body |
| CN115263417A (en) * | 2022-09-01 | 2022-11-01 | 中煤第七十一工程处有限责任公司 | A construction technology of artificial false roof by down-entry filling mining method |
| WO2023134375A1 (en) * | 2022-01-12 | 2023-07-20 | 山东黄金矿业(莱州)有限公司焦家金矿 | Large-span false roof structure using downward horizontal approach filling method, and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU732544A1 (en) * | 1977-11-10 | 1980-05-05 | Кузбасский Политехнический Институт | Protective and installation mining roof support |
| SU742598A1 (en) * | 1976-06-07 | 1980-06-25 | Институт Горного Дела Со Ан Ссср | Inter-level roof support |
| CN85100396A (en) * | 1985-04-01 | 1986-10-01 | 冶金工业部长沙矿冶研究院 | Method and equipment for leaching chromite alkaline roasting clinker by continuous multi-section countercurrent fluidization |
| CN108060924A (en) * | 2018-01-15 | 2018-05-22 | 中南大学 | High-dipping multi-seams thin deposit mechanization combinations for mining methods |
-
2018
- 2018-12-27 CN CN201811608204.8A patent/CN109595016A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU742598A1 (en) * | 1976-06-07 | 1980-06-25 | Институт Горного Дела Со Ан Ссср | Inter-level roof support |
| SU732544A1 (en) * | 1977-11-10 | 1980-05-05 | Кузбасский Политехнический Институт | Protective and installation mining roof support |
| CN85100396A (en) * | 1985-04-01 | 1986-10-01 | 冶金工业部长沙矿冶研究院 | Method and equipment for leaching chromite alkaline roasting clinker by continuous multi-section countercurrent fluidization |
| CN108060924A (en) * | 2018-01-15 | 2018-05-22 | 中南大学 | High-dipping multi-seams thin deposit mechanization combinations for mining methods |
Non-Patent Citations (1)
| Title |
|---|
| 解世俊: "《金属矿床地下开采》", 30 November 1979 * |
Cited By (18)
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| CN110118089B (en) * | 2019-05-23 | 2021-09-07 | 新疆大学 | A kind of mining FRP grid-coal gangue-self-compacting concrete recycled roof and its construction method |
| CN110118089A (en) * | 2019-05-23 | 2019-08-13 | 新疆大学 | A kind of mining FRP grid-gangue-self-compacting concrete mat and its construction method |
| CN111425247A (en) * | 2020-03-27 | 2020-07-17 | 北京矿冶科技集团有限公司 | Downward access filling body false roof with built-in prefabricated metal mesh reinforcing structure and construction method thereof |
| CN111425247B (en) * | 2020-03-27 | 2021-10-08 | 北京矿冶科技集团有限公司 | Downward access filling body false roof with built-in prefabricated metal mesh reinforcing structure and construction method thereof |
| CN111456735A (en) * | 2020-04-17 | 2020-07-28 | 山东科技大学 | Method for filling false roof without interval column and maintaining stability of downward single access |
| CN111456736A (en) * | 2020-04-17 | 2020-07-28 | 山东科技大学 | A method for maintaining the stability of the down-flow single-pass filling false roof and recovering the inter-column |
| CN111456735B (en) * | 2020-04-17 | 2021-08-13 | 山东科技大学 | A method for uninterrupted column and maintaining the stability of filling false roof down to single access |
| CN111561318A (en) * | 2020-04-29 | 2020-08-21 | 北京科技大学 | Artificial false roof construction method capable of realizing pre-supporting effect |
| CN111828008A (en) * | 2020-07-31 | 2020-10-27 | 驰宏科技工程股份有限公司 | Filling mining method for downward layered herringbone access arrangement |
| CN113738367A (en) * | 2021-09-02 | 2021-12-03 | 北京科技大学 | A downward filling mining method for complex crushing steeply inclined thin veins with subsection collapse |
| CN113738367B (en) * | 2021-09-02 | 2022-06-14 | 北京科技大学 | Sublevel caving downward filling mining method for complex broken and steeply inclined thin vein |
| CN113833497A (en) * | 2021-10-21 | 2021-12-24 | 北京金诚信矿山技术研究院有限公司 | Arrangement method and arrangement structure of preparation layer for downward single-route type cut-and-fill mining |
| CN114412551A (en) * | 2021-12-20 | 2022-04-29 | 江西理工大学 | Downward horizontal drift full-tailing cemented filling mining method for stoping ore body |
| WO2023134375A1 (en) * | 2022-01-12 | 2023-07-20 | 山东黄金矿业(莱州)有限公司焦家金矿 | Large-span false roof structure using downward horizontal approach filling method, and construction method |
| CN114592868A (en) * | 2022-03-09 | 2022-06-07 | 长沙矿山研究院有限责任公司 | Ore mining structure and method under extremely-broken ore body condition |
| CN115163070A (en) * | 2022-06-14 | 2022-10-11 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Downward mining method suitable for steeply inclined thin ore body |
| CN115163070B (en) * | 2022-06-14 | 2024-03-12 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Downward mining method suitable for steep thin ore body |
| CN115263417A (en) * | 2022-09-01 | 2022-11-01 | 中煤第七十一工程处有限责任公司 | A construction technology of artificial false roof by down-entry filling mining method |
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