CN109026141B - Method for reserving functional channel based on filling treatment dead zone - Google Patents
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- CN109026141B CN109026141B CN201810879871.3A CN201810879871A CN109026141B CN 109026141 B CN109026141 B CN 109026141B CN 201810879871 A CN201810879871 A CN 201810879871A CN 109026141 B CN109026141 B CN 109026141B
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Abstract
The invention discloses a method for reserving a functional channel based on a filling treatment dead zone, which comprises the following steps: dividing a vacant area: according to the effect of the empty area in the underground production, the empty area which plays the role of a production channel is divided into functional empty areas, and other empty areas are non-functional empty areas. And (3) construction of a functional channel: and constructing a functional channel in the functional dead zone along the original production functional path, and communicating the functional channel with a system roadway outside the dead zone to form a production channel. And (3) retaining wall construction: and constructing a retaining wall for sealing the functional dead area by taking the ore pillars in the functional dead area as connecting points. Filling a functional empty area: and filling the functional dead zone by adopting a filling body. According to the invention, the goaf is filled and treated, and meanwhile, the functional channel is constructed in the functional goaf, so that the safety problem existing when underground production passes through the goaf is solved, meanwhile, the blockage and damage of the original production channel in the goaf by filling are effectively avoided, the underground production is more reasonable and compliant, and the required manpower and material resource cost is low.
Description
Technical Field
The invention relates to the field of underground mine filling mining, in particular to a method for reserving a functional channel based on a filling treatment dead zone.
Background
In the mine mined by the open field method, the underground production channel inevitably passes through the empty area. With the development of filling technology and the improvement of safety and environmental protection awareness, the goaf filling and treatment becomes a main goaf treatment method. Through filling the goaf, the whole goaf is filled by the filling body, and the potential safety hazard of the goaf is effectively treated. However, the filled dead zone destroys the functional channels in the original dead zone, for example, the dead zone with functions of underground production transportation, ventilation, pedestrian movement or pipelines, etc., and the filled dead zone blocks the functional channels in the dead zone, destroys the underground production system, and brings inconvenience to production. The existing method comprises the following steps: and re-tunneling the functional tunnel, and transferring the functional facilities of the original empty area into the newly-excavated tunnel. The re-tunneled functional roadway line is long, the required time is long, and the cost of manpower and material resources is high; re-tunneling a functional roadway leads to the re-routing of underground production system channels and facilities, influences underground continuous production and brings great inconvenience to underground normal production.
Disclosure of Invention
The invention provides a method for reserving a functional channel based on a filling treatment dead zone, which aims to solve the technical problems of long road line of a functional roadway, long required time, high cost of manpower and material resources, influence on underground continuous production and great inconvenience for underground normal production in the conventional treatment mode of re-tunneling the functional roadway.
The technical scheme adopted by the invention is as follows:
a method for reserving a functional channel based on a filling treatment dead zone comprises the following steps: dividing a vacant area: according to the effect of the dead zone in underground production, the dead zone which plays the role of a production channel is divided into a functional dead zone, and other dead zones are divided into non-functional dead zones; and (3) construction of a functional channel: constructing a functional channel in the functional dead zone along the original production functional path, and communicating the functional channel with a system roadway outside the dead zone to form a production channel; and (3) retaining wall construction: constructing a retaining wall for sealing the functional dead area by taking the ore pillars in the functional dead area as connecting points; filling a functional empty area: and filling the functional dead zone by adopting a filling body.
Further, the functional empty area is an empty area through which a production functional route of a transportation route, a ventilation route, a pedestrian route or a pipeline route passes, and the pipeline route is a filling pipeline, a wind-water pipeline or a power cable production pipeline.
Further, the construction function channel specifically comprises the following steps: constructing a steel bar framework of the functional channel along the extension direction of the functional channel; carrying out formwork erection construction on the steel reinforcement framework; and pouring concrete to form a functional channel.
Furthermore, the steel reinforcement framework comprises an inner steel reinforcement mesh positioned on the inner layer and an outer steel reinforcement mesh sleeved outside the inner steel reinforcement mesh at intervals; the sections of the inner steel bar net and the outer steel bar net are square or arched, and the inner steel bar net and the outer steel bar net are respectively fixed with the bottom plate of the functional dead zone.
Furthermore, during the construction of the steel reinforcement framework, hooks and supports which extend out of the functional channels after pouring are constructed on the steel reinforcement framework.
Further, before the steel reinforcement framework is constructed, the method also comprises the following steps: constructing two foundation grooves extending along the extending direction of the functional channel on the bottom plate of the functional dead zone side by side; constructing a drainage ditch in one of the basic grooves, and communicating the drainage ditch with a drainage ditch of a system roadway; when the steel reinforcement framework is constructed, two bottom edges of the extending direction of the steel reinforcement framework are respectively connected to the two foundation grooves.
Furthermore, the bottom of the basic groove is 0.2-0.4 m below the original rock; the width of the basic groove is 0.6-0.8 m; the wall thickness of the functional channel is 0.3 m-0.4 m.
Furthermore, when the retaining wall is constructed, a drain pipe is pre-embedded in each retaining wall, and two ends of the drain pipe extend out of the wall surface of the retaining wall by 5-10 cm respectively; when the retaining wall is constructed, the strainer is erected from the filling feed opening to the retaining wall in the dead zone, and the strainer is arranged from a high position to a low position and is communicated with the drainage pipe in the retaining wall.
Further, when the functional empty area is filled by adopting a filling body, the functional empty area is filled and processed in a top-contacting way, and the specific operation steps are as follows: filling the functional dead zone in a first interval with the height of 6-7 m above the bottom plate by adopting a high-strength cemented filling mode; filling the functional dead zone top plate in a third interval with the height of 1-2 m below the top plate by adopting a high-strength cemented filling mode; and filling in a second interval between the first interval and the third interval by using a low-strength cemented filling mode or a non-cemented filling mode.
Further, when the functional empty area is filled by adopting a filling body, the functional empty area is partially filled, and the specific operation steps are as follows: filling the functional dead zone in a first interval with the height of 6-7 m above the bottom plate by adopting a high-strength cemented filling mode; and filling in a second interval with the height of 2-3 m above the first interval by adopting a low-strength cemented filling mode or a non-cemented filling mode.
The invention has the following beneficial effects:
according to the invention, the goaf is treated by filling, and meanwhile, the functional channel is constructed in the functional goaf, so that the problem of prominent potential safety hazard of production and traffic in the underground goaf is solved, meanwhile, the blockage and damage of the original production channel in the goaf can be effectively avoided, and the underground production is safer and more reasonable; the construction process of the functional channel is simple, the path of the functional channel is short, the engineering quantity during construction is small, the required construction period is short, and the cost of manpower and material resources is low; by constructing the functional channel in the filling area, the function of the production channel of the original goaf is reserved, and the underground production path and facilities do not need to be changed, so that the underground continuous and normal production is not influenced; compared with a newly-excavated roadway, the reserved functional channel does not need to be drilled and blasted, the underground environment is not damaged, the goaf filling is not influenced, the functional channel is protected by the upper filling body, the normal use of the lower functional channel is not influenced even if the goaf top plate falls off, and the tunnel is safe and environment-friendly.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a top view structure of a worked-out section constructed based on a method of filling a reserved functional channel of the worked-out section;
FIG. 2 is a schematic side view of a first embodiment of a gob after construction based on a method of filling a pre-determined functional channel in the gob;
FIG. 3 is a schematic side view of a second embodiment of a gob after construction based on the method of filling a pre-determined functional channel in the gob;
FIG. 4 is a schematic sectional structure diagram of a functional channel constructed by a method for reserving the functional channel based on a filling treatment dead zone.
Description of the figures
10. A functional empty area; 20. a non-functional empty area; 30. a functional channel; 40. carrying out ore pillar; 50. retaining walls; 60. a foundation trench; 70. a drainage ditch; 80. a system roadway; 90. a steel reinforcement cage; 110. concrete; 120. hooking; 130. a support; 140. a first interval; 150. a second interval; 160. and a third interval.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1, a preferred embodiment of the present invention provides a method for reserving a functional channel based on a filling treatment dead zone, which includes the following steps:
dividing a vacant area: according to the role of the empty zone in the underground production, the empty zone which plays the role of a production channel is divided into a functional empty zone 10, and other empty zones are divided into non-functional empty zones 20.
Construction of the functional channel 30: and constructing a functional channel 30 in the functional empty area 10 along the original production functional path, and enabling the functional channel 30 to be communicated with a system roadway 80 outside the empty area to form a production channel.
And (3) constructing the retaining wall 50: and constructing a retaining wall 50 for sealing the functional empty area 10 by taking the ore pillars 40 in the functional empty area 10 as connecting points.
And (3) filling the functional empty area 10: the functional empty area 10 is filled with a filling body.
The invention relates to a method for reserving a functional channel based on a filling treatment dead zone, which comprises the following specific operations: firstly, according to the effect of the empty zone in underground production, dividing the empty zone which plays the role of a production channel into a functional empty zone 10, and dividing other empty zones into non-functional empty zones 20; then constructing a functional channel 30 in the functional empty area 10 along the original production functional path, and communicating the functional channel 30 with a system roadway 80 outside the empty area to form a production channel; after the functional channel 30 is constructed, constructing the retaining wall 50, namely constructing the retaining wall 50 for sealing the functional empty area 10 by taking the pillars 40 in the functional empty area 10 as connecting points; and finally, filling the functional empty area 10 by adopting a filling body.
In the invention, the goaf is treated by filling, and the functional channel 30 is constructed in the functional goaf 10, so that the problem of prominent potential safety hazard of production and traffic in the underground goaf is solved, meanwhile, the blockage and damage of the original production channel in the goaf can be effectively avoided, and the underground production is safer and more reasonable; the construction process of the functional channel 30 is simple, the path of the functional channel 30 is short, the engineering quantity during construction is small, the required construction period is short, and the cost of manpower and material resources is low; by constructing the functional channel 30 in the filling area, the function of the production channel of the original goaf is reserved, and the underground production path and facilities do not need to be changed, so that the underground continuous and normal production is not influenced; compared with a newly-excavated roadway, the reserved functional channel 30 does not need to be drilled and blasted, the underground environment is not damaged, the goaf filling is not influenced, the functional channel 30 is protected by the upper filling body, the normal use of the lower functional channel is not influenced even if the goaf top plate falls down, and the tunnel is safe and environment-friendly.
In the present invention, the functional empty area 10 is an empty area through which a production line of a transportation line, a ventilation line, a pedestrian line, or a pipeline line passes, and the pipeline line is a filling line, a wind-water line, or a power cable line. The functional dead zone 10 is connected with a production channel of the underground system and takes on the function of the production channel in the zone.
Optionally, as shown in fig. 4, the construction functional channel 30 specifically includes the following steps:
the steel reinforcement cage 90 of the functional passage 30 is constructed along the extending direction of the functional passage 30.
And performing formwork erection construction on the steel reinforcement framework 90.
The functional passages 30 are cast with concrete 110.
Specifically, the work function channel 30 is specifically operative to: firstly, a steel reinforcement framework 90 of the functional channel 30 is constructed along the extending direction of the functional channel 30; then, performing formwork erection construction on the steel reinforcement framework 90, wherein during the formwork erection construction, a space of 3-5 cm is reserved between the formwork and the steel reinforcement framework 90, and the space is filled with concrete and then is used as a concrete protection layer of the steel reinforcement framework 90; and finally, pouring the functional channel 30 by adopting concrete 110, pouring by adopting C25 or C30 concrete, pouring for several times, curing according to requirements after pouring is finished, and removing the template after curing is finished.
In the present invention, as shown in fig. 4, the steel reinforcement frame 90 includes an inner steel reinforcement mesh located at the inner layer, and an outer steel reinforcement mesh sleeved outside the inner steel reinforcement mesh at intervals. The sections of the inner reinforcement net and the outer reinforcement net are both square or arched, and the inner reinforcement net and the outer reinforcement net are respectively fixed with the bottom plate of the functional dead zone 10. In the embodiment of the invention, the inner steel bar net and the outer steel bar net are respectively formed by binding transverse steel bars and vertical steel bars through iron wires, the mesh degree of the transverse steel bars and the longitudinal steel bars is 250-350 mm, the diameter of the transverse steel bars is 16-18 mm, the diameter of the vertical steel bars is 8-10 mm, and the bottom ends of the vertical steel bars are deeply inserted into the bottom plate of the functional empty area 10.
Preferably, as shown in fig. 4, the steel reinforcement cage 90 is constructed by constructing the hooks 120 and the brackets 130 extending out of the functional channel 30 after casting on the steel reinforcement cage 90. Or constructing a short steel bar on the steel bar framework 90 to be used as a welding port of the later-stage hook. The hooks 120, the brackets 130 or the short steel bars which extend out of the functional channels 30 after pouring are constructed on the steel reinforcement framework 90, so that the subsequent installation work in the channels is facilitated, for example, illumination is installed on the reserved hooks 120 or the short steel bars, or various pipelines and cables are erected on the brackets 130.
Optionally, as shown in fig. 4, before constructing the steel reinforcement framework 90, the method further includes the steps of:
two foundation grooves 60 extending in the extending direction of the functional passage 30 are formed side by side on the bottom plate of the functional empty area 10.
A drain 70 is constructed in one of the foundation grooves 60, and the drain 70 is communicated with a drain of the system tunnel 80.
When the reinforcing cage 90 is constructed, the two bottom sides of the reinforcing cage 90 in the extending direction are connected to the two foundation grooves 60, respectively.
Specifically, two basic grooves 60 extending in the extending direction of the functional channel 30 are constructed side by side on the bottom plate of the functional empty area 10, then a drainage ditch 70 is constructed in one of the basic grooves 60, the drainage ditch 70 is communicated with the drainage ditch of the system roadway 80, the gradient direction of the bottom of the drainage ditch 70 is consistent with the gradient direction of the ditch of the system roadway 80 in the area, drainage is facilitated, then the steel reinforcement framework 90 of the functional channel 30 is constructed in the extending direction of the basic grooves 60, and when the steel reinforcement framework 90 is constructed, two bottom edges of the extending direction of the steel reinforcement framework 90 are respectively connected to the two basic grooves 60.
In the invention, the bottom of the foundation groove 60 is located 0.2-0.4 m below the original rock, and the bottom end of the steel reinforcement framework 90 is deeply inserted into the foundation groove 60, so when the bottom of the foundation groove 60 is located 0.2-0.4 m below the original rock, the steel reinforcement framework 90 can be stably deeply inserted into the foundation groove 60 due to the high hardness of the original rock, and the connection stability of the steel reinforcement framework 90 is further enhanced. The width of the base groove 60 is 0.6 to 0.8 m. The wall thickness of the functional channel 30 is 0.3m to 0.4 m.
Optionally, when the retaining wall 50 is constructed, a drain pipe is pre-buried in each retaining wall 50, and two ends of the drain pipe extend out of the wall surface of the retaining wall 50 by 5 cm-10 cm respectively. Meanwhile, when the retaining wall 50 is constructed, the strainer is erected from the filling feed opening to the retaining wall 50 in the dead zone and is arranged from high to low and communicated with the drain pipe. In the invention, as shown in fig. 1, a retaining wall is arranged between adjacent ore pillars 40, and a drain pipe is pre-buried in each retaining wall. In the specific embodiment of the invention, at least 2 drain pipes are pre-buried in each retaining wall, wherein at least one drain pipe is arranged at the height of 1m of the retaining wall, at least one drain pipe is arranged at the height of 2m, and the drain pipes are all made of PVC pipes. The strainer adopts the soft pipe that permeates water of ripple, and the strainer erects from filling feed opening to barricade 50 department, and adopts the bamboo pole fixed stay to the strainer runs through whole collecting space area in the vertical direction.
Alternatively, after the functional channel 30 and the retaining wall 50 are constructed and meet the maintenance requirement, and after the strainer is erected in the dead zone, the functional dead zone filling operation is finally performed.
Alternatively, as shown in fig. 2 and 3, the functional empty area 10 may be filled with a roof-contacting treatment (as shown in fig. 2) or a partial filling treatment (as shown in fig. 3) according to the mine filling capacity and the downhole production requirement.
When the functional empty area 10 is filled, as shown in fig. 2, the functional empty area 10 is filled in a first section 140 with a height of 6m to 7m from the bottom plate thereof. And filling the third interval 160 with the height of 1-2 m below the top plate of the functional empty area 10 by adopting a high-strength cemented filling mode. And a second interval 150 between the first interval 140 and the third interval 160 is filled by using a low-strength cement filling method or a non-cement filling method.
Specifically, when the functional empty area 10 is filled, the strength of the filling body in the first zone 140 is required to reach 1 to 1.5 Mpa. The strength of the filling body in the third interval 160 is required to reach 1.5-2 Mpa, so as to ensure the filling and roof-contacting effect. The strength of the filling body in the second interval 150 is required to be not more than 0.5 MPa. After the goaf is filled, the top plate of the original goaf is supported by the filling body, so that the roof rock stratum is prevented from falling in a large area, the stability of the goaf and the functional channel 30 is effectively protected, and the functional channel 30 is ensured to normally exert a production function.
When the functional empty area 10 is partially filled, as shown in fig. 3, the functional empty area 10 is filled in a first section 140 with a height of 6m to 7m from the bottom plate upward by using a high-strength cement filling method. In the second interval 150 with the height of 2 m-3 m above the first interval 140, the filling is carried out by adopting a low-strength cemented filling mode or a non-cemented filling mode, and the residual space can be filled or not filled at proper time according to the filling capacity and the production requirement.
Specifically, when the functional empty area 10 is partially filled, the strength of the filling body in the first interval 140 is required to reach 1 to 1.5 Mpa. The strength of the filling body in the second interval 150 is required to be not more than 0.5 MPa. After the filling is finished, the goaf with a certain height is left on the upper part of the filling body and is not filled, and the goaf can be filled timely according to the mine filling capacity and the production requirement. After the filling of the empty area is finished, the buffer effect of the filling body covered on the functional channel 30 avoids the impact damage of the roof of the empty area to the functional channel 30 at the lower part, and ensures the safe and normal use of the functional channel 30.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method for reserving a functional channel based on a filling treatment dead zone is characterized by comprising the following steps:
firstly, according to the effect of the empty area in underground production, the empty area which plays the role of a production channel is divided into a functional empty area (10), and other empty areas are divided into non-functional empty areas (20); then constructing a functional channel (30) in the functional dead zone (10) along the original production functional path, and communicating the functional channel (30) with a system roadway (80) outside the dead zone to form a production channel; after the functional channel (30) is constructed, constructing a retaining wall (50), namely constructing the retaining wall (50) for closing the functional dead zone (10) by taking the ore pillars (40) in the functional dead zone (10) as connecting points; finally, filling the functional empty area (10) by adopting a filling body; the method is characterized in that a functional channel (30) is constructed in a functional dead zone (10) while the filling treatment dead zone is adopted, so that the problem of prominent potential safety hazard of production and traffic in the underground dead zone is solved, and meanwhile, the blockage and damage of an original production channel in the dead zone are avoided; by constructing the functional channel (30) in the filling area, the function of the original production channel is reserved, and the original production functional path and facilities do not need to be changed, so that the continuous and normal production in the well is not influenced; compared with a newly excavated roadway, the reserved functional channel (30) does not need to be drilled and blasted, the underground environment is not damaged, the goaf filling is not influenced, the functional channel (30) is protected by the upper filling body, and the normal use of the lower functional channel is not influenced even if the goaf top plate falls off;
when the functional dead zone (10) is filled, a first interval (140) with the height of 6-7 m from the bottom plate of the functional dead zone (10) upwards is filled in a high-strength cemented filling mode, a third interval (160) with the height of 1-2 m from the top plate of the functional dead zone (10) downwards is filled in a high-strength cemented filling mode, and a second interval (150) between the first interval (140) and the third interval (160) is filled in a low-strength cemented filling mode or a non-cemented filling mode; the strength requirement of a filling body in the first interval (140) reaches 1-1.5 Mpa, the strength requirement of a filling body in the third interval (160) reaches 1.5-2 Mpa, the filling roof-contacting effect is ensured, the strength requirement of the filling body in the second interval (150) does not exceed 0.5Mpa, after the goaf is filled, the top plate of the original goaf is supported by the filling body, the roof rock stratum is prevented from falling in a large area, the stability of the goaf and the functional channel (30) is effectively protected, and the functional channel (30) is ensured to normally exert the production function; or
When the functional dead zone (10) is partially filled, a first interval (140) with the height of 6-7 m from the bottom plate of the functional dead zone (10) upwards is filled in a high-strength cemented filling mode, a second interval (150) with the height of 2-3 m from the first interval (140) upwards is filled in a low-strength cemented filling mode or a non-cemented filling mode, and the residual space is filled or not filled at proper time according to filling capacity and production requirements; when the functional dead zone (10) is partially filled, the strength requirement of a filling body in the first interval (140) reaches 1-1.5 Mpa, the strength requirement of the filling body in the second interval (150) does not exceed 0.5Mpa, after filling is finished, the dead zone with a certain height is still arranged at the upper part of the filling body and is not filled, the dead zone can be filled timely according to the filling capacity and the production requirement of a mine, after filling of the dead zone is finished, the impact damage of a dead zone top plate falling to the functional channel (30) at the lower part is avoided through the buffer action of the filling body covering the functional channel (30), and the safety and normal use of the functional channel (30) are ensured.
2. The method for reserving a functional channel based on a filling and treatment dead zone as claimed in claim 1,
the functional dead zone (10) is a dead zone through which a production functional route of a transportation route, a ventilation route, a pedestrian route or a pipeline route passes, and the pipeline route is a filling pipeline, a wind-water pipeline or a power cable production pipeline.
3. The method for reserving a functional channel based on a filling and treatment dead zone as claimed in claim 1, wherein constructing the functional channel (30) specifically comprises the steps of:
a steel reinforcement framework (90) of the functional channel (30) is constructed along the extending direction of the functional channel (30);
carrying out formwork erection construction on the steel reinforcement framework (90);
and pouring the functional channel (30) by adopting concrete (110).
4. The method for reserving a functional channel based on a filling and treatment dead zone as claimed in claim 3,
the steel bar framework (90) comprises an inner steel bar net positioned on the inner layer and an outer steel bar net sleeved outside the inner steel bar net at intervals;
the sections of the inner reinforcement net and the outer reinforcement net are square or arched, and the inner reinforcement net and the outer reinforcement net are respectively fixed with the bottom plate of the functional dead zone (10).
5. The method for reserving a functional channel based on a filling and treatment dead zone as claimed in claim 3,
when the steel reinforcement framework (90) is constructed, hooks (120) and supports (130) extending out of the functional channels (30) after pouring are constructed on the steel reinforcement framework (90).
6. The method for reserving a functional channel based on a filling and treating empty zone as claimed in claim 3, wherein before constructing the reinforcement cage (90), the method further comprises the following steps:
two foundation grooves (60) extending along the extending direction of the functional channel (30) are constructed on the bottom plate of the functional empty area (10) side by side;
constructing a drainage ditch (70) in one of the foundation tanks (60), and enabling the drainage ditch (70) to be communicated with a drainage ditch of the system roadway (80);
when the steel reinforcement framework (90) is constructed, two bottom edges of the extending direction of the steel reinforcement framework (90) are respectively connected to the two foundation grooves (60).
7. The method for reserving a functional channel based on a filling and treatment dead zone as claimed in claim 6,
the bottom of the foundation trench (60) is 0.2-0.4 m below the original rock;
the groove width of the basic groove (60) is 0.6-0.8 m;
the wall thickness of the functional channel (30) is 0.3-0.4 m.
8. The method for reserving a functional channel based on a filling and treatment dead zone as claimed in claim 1,
when the retaining wall (50) is constructed, a drain pipe is pre-buried in each retaining wall (50), and two ends of the drain pipe extend out of the wall surface of the retaining wall (50) by 5 cm-10 cm respectively;
construction during barricade (50) by filling the feed opening extremely in the dead zone barricade (50) department erects the strainer, and makes the strainer by the eminence toward low place arrange and with drain pipe intercommunication in barricade (50).
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| CN114352356B (en) * | 2021-12-24 | 2024-05-03 | 鞍钢集团矿业有限公司 | Partition wall for blocking penetration of main goaf and hidden goaf and construction method |
| CN114607417B (en) * | 2022-03-25 | 2023-02-03 | 长沙矿山研究院有限责任公司 | High-safety transportation channel in filling body and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN103306724B (en) * | 2013-06-25 | 2015-07-08 | 中国矿业大学(北京) | Convex cage-shaped closed gob energy-absorbing structure and construction method thereof |
| CN104612695B (en) * | 2015-01-29 | 2016-08-31 | 湖南科技大学 | One acutely collapses shaft wall restoring and fastening method |
| CN106321113B (en) * | 2016-09-14 | 2018-04-10 | 中国矿业大学(北京) | A kind of lane space frame structure and its method for protecting support for being used to wear goaf |
| CN107178366B (en) * | 2017-07-28 | 2019-11-05 | 长沙矿山研究院有限责任公司 | A kind of stoping method of column ore body |
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