CN109026141A - The method for administering dead zone reserved function channel based on filling - Google Patents
The method for administering dead zone reserved function channel based on filling Download PDFInfo
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- CN109026141A CN109026141A CN201810879871.3A CN201810879871A CN109026141A CN 109026141 A CN109026141 A CN 109026141A CN 201810879871 A CN201810879871 A CN 201810879871A CN 109026141 A CN109026141 A CN 109026141A
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 49
- 238000010276 construction Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 6
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- 239000010410 layers Substances 0.000 claims description 3
- 239000000463 materials Substances 0.000 abstract description 5
- 230000000903 blocking Effects 0.000 abstract description 2
- 238000000034 methods Methods 0.000 description 4
- 238000010586 diagrams Methods 0.000 description 3
- 210000002356 Skeleton Anatomy 0.000 description 2
- 238000005516 engineering processes Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
Description
Technical field
The present invention relates to underground mine filling field of mining, particularly, are related to a kind of based on the reserved function in filling improvement dead zone The method in energy channel.
Background technique
The mine of open-stope mining, downhole production channel is inevitably by dead zone.With the hair of filling process technology The main method that goaf has become goaf harnessing is administered in the raising of exhibition and safety and environmental protection consciousness, filling.It is empty by filling Area, entire dead zone are filled with body filling, and goaf security risk is effectively administered.However, filling dead zone destroys former dead zone Interior function channel, for example have the dead zone of the functions such as downhole production transport, ventilation, people's row or pipeline in dead zone, due to filling, resistance Break function channel in dead zone, has destroyed downhole production system, make troubles to production.Existing way is: tunneling function again Energy property tunnel, the functional facilities of former dead zone are transferred in the tunnel newly dug.Again the functional tunnel route tunneled is long, required Time is long, and manpower and material resources are at high cost；Again tunneling function tunnel causes downhole production system channel and facility to be changed its course, and influences well Lower continuous production, and normally produced to underground and bring very big inconvenience.
Summary of the invention
The present invention provides a kind of methods for administering dead zone reserved function channel based on filling, existing using again to solve Functionality tunnel route existing for the processing mode in tunneling function tunnel is long, required time is long, manpower and material resources are at high cost, influences Underground continuous production simultaneously normally produces the technical problem for bringing very big inconvenience to underground.
The technical solution adopted by the invention is as follows:
A method of reserved function channel in dead zone being administered based on filling, comprising the following steps: dead zone divides: according to dead zone The dead zone for playing production channeling is divided into function dead zone by the effect played in downhole production, other dead zones are divided into Non-functional dead zone；Function passage construction: constructing out function channel in function dead zone along original production feature path, and keeps function logical Road is connected to dead zone external system tunnel to form production channel；Retaining wall: it using the ore pillar in function dead zone as tie point, constructs out Barricade for closing function dead zone；Function Filling mine-out area: function dead zone is filled using obturation.
Further, function dead zone is the production function route of transit route, ventilation routes, walking track or duct route The dead zone of process, and duct route is the production pipeline of filling piping, geomantic omen pipeline or power cable.
Further, construction function channel is specifically includes the following steps: the extending direction along function channel constructs function The framework of steel reinforcement in channel；Formwork erection construction is carried out to framework of steel reinforcement；Function channel is gone out using concreting.
Further, framework of steel reinforcement includes the outer reinforcing bar of the interior steel mesh for being located at internal layer, spacer sleeve outside interior steel mesh Net；The section of interior steel mesh and outer steel mesh is square or arch, and interior steel mesh and outer steel mesh respectively with function dead zone Bottom plate fix.
Further, the hook and branch in function channel are stretched out after structure even pours on framework of steel reinforcement when constructing framework of steel reinforcement Frame.
Further, two edges of constructing out side by side on the bottom plate of function dead zone are further comprised the steps of: before constructing framework of steel reinforcement The foundation trench that the extending direction in function channel extends；It constructs out in a wherein foundation trench gutter, and makes gutter and be The gutter connection in system tunnel；When constructing framework of steel reinforcement, two bottom edges of framework of steel reinforcement extending direction is made to be connected to two In foundation trench.
Further, the slot bottom of foundation trench is located at protolith or less 0.2m~0.4m；The groove width of foundation trench is 0.6m~0.8m； The wall thickness in function channel is 0.3m~0.4m.
Further, when construction barricade, the pre-buried drainpipe in every fan barricade, and the both ends of drainpipe is made to stretch out gear respectively Wall metope 5cm~10cm；When construction barricade, filter pipe is set up by filling feed opening to barricade in dead zone, and make filter pipe It arranges from eminence toward lower and is connected to barricade internal drainage pipe.
Further, top processing, concrete operation step are connect to function Filling mine-out area when filling function dead zone using obturation It is as follows: to be filled in function dead zone the bottom plate up first interval of 6m~7m height using high-intensitive consolidated fill mode；In function It can be filled in the 3rd interval of dead zone top plate 1m~2m height down using high-intensitive consolidated fill mode；In first interval and It is filled in second interval between three sections using low-intensity consolidated fill mode or Non cemented filling mode fills.
Further, to function dead zone part filling treatment, concrete operation step when filling function dead zone using obturation It is as follows: to be filled in function dead zone the bottom plate up first interval of 6m~7m height using high-intensitive consolidated fill mode；? It is filled in the second interval of one section up 2m~3m height using low-intensity consolidated fill mode or Non cemented filling mode is filled It fills out.
The invention has the following advantages:
In the present invention, while administering goaf using filling, function channel is constructed in function dead zone, solves underground Current security risk distinct issues are produced in dead zone, meanwhile, it can effectively avoid original production channel in dead zone and be filled with blocking, break Bad, downhole production is safer, reasonable conjunction rule；Function passage construction simple process, the path in function channel is short, construction when work Small, the required short construction period of journey amount and human and material resources are at low cost；By constructing function channel in fill area, remain Former goaf produces channel function, haves no need to change downhole production path and facility, so that it is continuous, normal raw not influence underground It produces；Reserved function channel does not need to carry out driling explosion, does not destroy subsurface environment, do not influence dead zone and fill compared with newly pick tunnel It fills out, and protection of the function channel by top obturation, lower part function channel will not be influenced inbreak occurs in dead zone top plate Normal use, it is safe and environmentally friendly.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention. Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the overlooking structure diagram of the dead zone after the method for being administered reserved function channel in dead zone based on filling is constructed；
Fig. 2 is the side view of the first embodiment of the dead zone after the method for being administered reserved function channel in dead zone based on filling is constructed Structural schematic diagram；
Fig. 3 is the side view of the second embodiment of the dead zone after the method for being administered reserved function channel in dead zone based on filling is constructed Structural schematic diagram；
Fig. 4 is the section structure signal in the function channel that the method for administering dead zone reserved function channel based on filling is constructed out Figure.
Marginal data
10, function dead zone；20, non-functional dead zone；30, function channel；40, ore pillar；50, barricade；60, foundation trench；70, it arranges Ditch；80, system tunnel；90, framework of steel reinforcement；110, concrete；120, it links up with；130, bracket；140, first interval；150, Two sections；160,3rd interval.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims Implement with the multitude of different ways of covering.
Referring to Fig.1, the preferred embodiment of the present invention provides a kind of side that reserved function channel in dead zone is administered based on filling Method, comprising the following steps:
Dead zone divides: according to effect of the dead zone played in downhole production, the dead zone for playing production channeling being divided For function dead zone 10, other dead zones are divided into non-functional dead zone 20.
It constructs in function channel 30: constructing out function channel 30 in function dead zone 10 along original production feature path, and make function Energy channel 30 is connected to dead zone external system tunnel 80 to form production channel.
Barricade 50 is constructed: being tie point with the ore pillar 40 in function dead zone 10, is constructed out for closing function dead zone 10 Barricade 50.
Function dead zone 10 fills: filling function dead zone 10 using obturation.
The method that reserved function channel in dead zone is administered based on filling of the invention, concrete operations are as follows: existed first according to dead zone The dead zone for playing production channeling is divided into function dead zone 10 by effect played in downhole production, other dead zones are divided into Non-functional dead zone 20；Then it constructs out function channel 30 in function dead zone 10 along original production feature path again, and keeps function logical Road 30 is connected to dead zone external system tunnel 80 to form production channel；Applying for barricade 50 is carried out again after the completion of the construction of function channel 30 Work is tie point with the ore pillar 40 in function dead zone 10, the barricade 50 constructed out for closing function dead zone 10；Finally adopt again Function dead zone 10 is filled with obturation.
In the present invention, while administering goaf using filling, function channel 30 is constructed in function dead zone 10, is solved Current security risk distinct issues are produced in the dead zone of underground, meanwhile, it can effectively avoid original production channel in dead zone and be filled with resistance It is disconnected, destroy, downhole production is safer, reasonable conjunctions is advised；30 construction technology of function channel is simple, the path in function channel 30 is short, Small, the required short construction period of project amount when construction and human and material resources are at low cost；It is logical by constructing function in fill area Road 30 remains former goaf production channel function, haves no need to change downhole production path and facility, to not influence underground company Continuous, normal production；Reserved function channel 30 does not need to carry out driling explosion, does not destroy subsurface environment, no compared with newly pick tunnel Filling mine-out area, and protection of the function channel 30 by top obturation are influenced, will not be influenced inbreak occurs in dead zone top plate The normal use in lower part function channel, it is safe and environmentally friendly.
In the present invention, function dead zone 10 is the production line warp of transit route, ventilation routes, walking track or duct route The dead zone crossed, and duct route is the production pipeline of filling piping, geomantic omen pipeline or power cable.Function dead zone 10 and underground system System production channel is connected, and carries the function that channel is produced in region.
Optionally, as shown in figure 4, construction function channel 30 specifically includes the following steps:
Extending direction along function channel 30 constructs the framework of steel reinforcement 90 in function channel 30.
Formwork erection construction is carried out to framework of steel reinforcement 90.
Function channel 30 is poured out using concrete 110.
Specifically, construction 30 concrete operations of function channel are as follows: the extending direction first along function channel 30 constructs function The framework of steel reinforcement 90 in channel 30；Then formwork erection construction is carried out to framework of steel reinforcement 90 again, when formwork erection is constructed, template and framework of steel reinforcement 90 Between reserve the space of 3cm~5cm, the concrete cover after the space fill concrete as framework of steel reinforcement 90；Finally again Function channel 30 is poured out using concrete 110, C25 or C30 concreting is used when pouring, and pour by several times, poured Cheng Hou, according still further to requiring to be conserved, form removal after maintenance.
In the present invention, as shown in figure 4, framework of steel reinforcement 90 includes the interior steel mesh for being located at internal layer, spacer sleeve set on interior reinforcing bar Outer steel mesh outside net.The section of interior steel mesh and outer steel mesh is square or arch, and interior steel mesh and outer steel mesh point Bottom plate not with function dead zone 10 is fixed.In the specific embodiment of the invention, interior steel mesh and outer steel mesh are respectively by transverse steel It is bound with vertical reinforcement by iron wire, the net degree of transverse steel and longitudinal reinforcement is 250mm~350mm, transverse steel Diameter is 16mm~18mm, and the diameter of vertical reinforcement is 8mm~10mm, and the bottom of function dead zone 10 is goed deep into the bottom end of vertical reinforcement In plate.
Preferably, as shown in figure 4, stretching out function channel after structure even pours on framework of steel reinforcement 90 when constructing framework of steel reinforcement 90 30 hook 120 and bracket 130.Or the soldering opening that structure connects bar dowel to link up with as the later period on framework of steel reinforcement 90.Pass through Hook 120, bracket 130 or the bar dowel that function channel 30 is stretched out after structure even pours on framework of steel reinforcement 90, for convenience of subsequent Installment work in channel such as installs illumination on reserved hook 120 or bar dowel, or sets up various pipes on bracket 130 Road and cable.
Optionally, as shown in figure 4, being further comprised the steps of: before building framework of steel reinforcement 90
The foundation trench that two extending directions along function channel 30 of constructing out side by side on the bottom plate of function dead zone 10 extend 60。
It constructs out in a wherein foundation trench 60 gutter 70, and connects the gutter in gutter 70 and system tunnel 80 It is logical.
When constructing framework of steel reinforcement 90, two bottom edges of 90 extending direction of framework of steel reinforcement is made to be connected to two foundation trench 60 In.
Specifically, two extending directions along function channel 30 of constructing out side by side on the bottom plate of function dead zone 10 first prolong The foundation trench 60 stretched, gutter 70 of then constructing out in a wherein foundation trench 60 again, and make gutter 70 and system tunnel 80 gutter connection, and in the gradient direction of 70 bottom of trench of gutter and region the ditch in system tunnel 80 gradient direction one It causes, facilitates draining, then construct the framework of steel reinforcement 90 in function channel 30 along the extending direction of foundation trench 60 again, and construct reinforcing bar When skeleton 90, it is connected to two bottom edges of 90 extending direction of framework of steel reinforcement in two foundation trench 60.
In the present invention, the slot bottom of foundation trench 60 is located at protolith or less 0.2m~0.4m, since the bottom end of framework of steel reinforcement 90 is deep Enter in foundation trench 60, so when the slot bottom of foundation trench 60 is located at protolith or less 0.2m~0.4m, since protolith hardness is high, thus It can make framework of steel reinforcement 90 is stable to go deep into foundation trench 60, and then the stability that reinforcing steel bar skeleton 90 connects.Foundation trench 60 Groove width is 0.6m~0.8m.The wall thickness in function channel 30 is 0.3m~0.4m.
Optionally, when construction barricade 50, the pre-buried drainpipe in every fan barricade 50, and stretch out the both ends of drainpipe respectively 50 metope 5cm~10cm of barricade.Meanwhile when construction barricade 50, drainage is set up by filling feed opening to barricade 50 in dead zone Pipe, and arrange that filter pipe from high to low and be connected to drainpipe.In the present invention, as shown in Figure 1, being equipped between adjacent ore pillar 40 One fans barricade, is embedded with drainpipe in every fan barricade.In the specific embodiment of the invention, at least pre-buried 2 rows in every fan barricade Water pipe, wherein at least one drainpipe are arranged at the 1m height of barricade, and at least one drainpipe is arranged at 2m height, draining Pipe is all made of pvc pipe.Filter pipe uses ripple flexible porous tube, and filter pipe is set up from filling feed opening to barricade 50, and is adopted Support is fixed with bamboo pole, and filter pipe is vertically running through entire goaf.
Optionally, it is desirable that function channel 30 and barricade 50 are constructed after finishing and meeting curing requirements, and in dead zone After having set up filter pipe, function Filling mine-out area operation is finally carried out again.
It optionally, as shown in Figures 2 and 3, can be to function dead zone 10 according to filling in mine ability and downhole production needs Tight filling handles (as shown in Figure 2) or part filling treatment (as shown in Figure 3).
To function dead zone 10 full of processing when, as shown in Fig. 2, 10 bottom plate of function dead zone up 6m~7m height first It is filled in section 140 using high-intensitive consolidated fill mode.The 3rd interval of 10 top plate 1m~2m height down in function dead zone It is filled in 160 using high-intensitive consolidated fill mode.In second interval 150 between first interval 140 and 3rd interval 160 It is filled using low-intensity consolidated fill mode or Non cemented filling mode fills.
Specifically, when to function dead zone 10 full of processing, in first interval 140 strength of filling mass require to reach 1~ 1.5Mpa.Strength of filling mass requires to reach 1.5~2Mpa in 3rd interval 160, it is ensured that Tight filling effect.Second interval 150 Interior strength of filling mass requires to be no more than 0.5Mpa.After Filling mine-out area, former dead zone top plate is supported by obturation, prevents top plate Rock stratum large area inbreak, the stabilization in effective protection goaf and function channel 30, it is ensured that function channel 30 normally plays production function Energy.
When to 10 part filling treatment of function dead zone, as shown in figure 3, in 10 bottom plate of function dead zone up 6m~7m height It is filled in first interval 140 using high-intensitive consolidated fill mode.In the second interval of the up 2m~3m height of first interval 140 It is filled in 150 using low-intensity consolidated fill mode or Non cemented filling mode fills, remaining space can be according to stowage capacity It needs, fill in due course or does not fill with production.
Specifically, when being filled to 10 part of function dead zone, in first interval 140 strength of filling mass require to reach 1~ 1.5Mpa.Strength of filling mass requires to be no more than 0.5Mpa in second interval 150.After filling, obturation top still has centainly The dead zone of height is not filled with, subsequent to be filled in due course to goaf according to filling in mine ability and production needs.Dead zone Filling finishes, and by covering the buffer function of obturation on function channel 30, avoids dead zone top plate inbreak to lower part function channel 30 Impact failure, it is ensured that 30 safety of function channel and normal use.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
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| CN201810879871.3A CN109026141A (en) | 2018-08-03 | 2018-08-03 | The method for administering dead zone reserved function channel based on filling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU823600A1 (en) * | 1979-03-21 | 1981-04-23 | Предприятие П/Я М-5703 | Distributing filling pipeline |
| SU928036A1 (en) * | 1980-06-04 | 1982-05-15 | За витель и Ю. С. И. Допьник, И. Ш. Коган Упезко | Method of filling-in an excavated chamber with self-setting compositions |
| CN103306724A (en) * | 2013-06-25 | 2013-09-18 | 中国矿业大学(北京) | Convex cage-shaped closed gob energy-absorbing structure and construction method thereof |
| CN104612695A (en) * | 2015-01-29 | 2015-05-13 | 湖南科技大学 | Repairing and reinforcing method for vertical shaft wall collapsed fiercely |
| CN106321113A (en) * | 2016-09-14 | 2017-01-11 | 中国矿业大学(北京) | Laneway space frame structure for goaf penetration and supporting method of lane space frame structure |
| CN107178366A (en) * | 2017-07-28 | 2017-09-19 | 长沙矿山研究院有限责任公司 | A kind of stoping method of post ore body |
-
2018
- 2018-08-03 CN CN201810879871.3A patent/CN109026141A/en active Search and Examination
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU823600A1 (en) * | 1979-03-21 | 1981-04-23 | Предприятие П/Я М-5703 | Distributing filling pipeline |
| SU928036A1 (en) * | 1980-06-04 | 1982-05-15 | За витель и Ю. С. И. Допьник, И. Ш. Коган Упезко | Method of filling-in an excavated chamber with self-setting compositions |
| CN103306724A (en) * | 2013-06-25 | 2013-09-18 | 中国矿业大学(北京) | Convex cage-shaped closed gob energy-absorbing structure and construction method thereof |
| CN104612695A (en) * | 2015-01-29 | 2015-05-13 | 湖南科技大学 | Repairing and reinforcing method for vertical shaft wall collapsed fiercely |
| CN106321113A (en) * | 2016-09-14 | 2017-01-11 | 中国矿业大学(北京) | Laneway space frame structure for goaf penetration and supporting method of lane space frame structure |
| CN107178366A (en) * | 2017-07-28 | 2017-09-19 | 长沙矿山研究院有限责任公司 | A kind of stoping method of post ore body |
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