CN115897489B - Construction process of coal gangue gabion wall of coal mine - Google Patents
Construction process of coal gangue gabion wall of coal mine Download PDFInfo
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- CN115897489B CN115897489B CN202310028638.5A CN202310028638A CN115897489B CN 115897489 B CN115897489 B CN 115897489B CN 202310028638 A CN202310028638 A CN 202310028638A CN 115897489 B CN115897489 B CN 115897489B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a construction process of a coal gangue gabion wall of a coal mine, which comprises the following steps: the metal net cage comprises a metal net cage, a partition plate and a filling material, wherein the partition plate is movably inserted in the middle of the metal net cage, and the filling material is filled in the metal net cage; the metal net cage is of a top opening structure; the filling material comprises untreated raw materials and treated raw materials; the untreated raw materials comprise coal gangue raw materials, and the treated raw materials comprise coal gangue spheres and coal gangue cement. The invention selects a large part of coal solid waste, thereby realizing the recovery and utilization of the solid waste, simultaneously, the invention also selects a large gangue as a part of a gangue cage wall directly without other operations, thereby greatly saving resources, and simultaneously, selects a small gangue raw material to be sent into a stone circular mill for circular grinding treatment, thereby obtaining gangue spheres with high resource utilization rate, and avoiding the occurrence of the condition of large damage to ecological environment.
Description
Technical Field
The invention relates to the technical field of river engineering construction, in particular to a construction process of a coal gangue gabion wall of a coal mine.
Background
The gangue is solid waste discharged in the coal mining and coal washing processes, is industrial solid waste with the largest discharge amount in China at present, and is mainly used in the mode of comprehensive utilization of the gangue in China at present: used as fuel, recovering useful minerals from coal gangue, used as filling reclamation, manufacturing building materials, and the like. In the aspect of manufacturing building materials, the gangue contains a large amount of clay minerals, and certain activity can be generated after calcination. Therefore, the modified asphalt is added into cement as an active pozzolan material as a mixed material, not only can solve the problem of environmental pollution of coal gangue, but also can replace part of cement clinker, and reduce the cement cost.
At present, most gabion walls adopt mountain stones or cobbles as raw materials, the manufacturing method is simple, the construction is quick, the technology is mature, and the gabion walls are widely used in hydraulic engineering.
However, in the prior art, when the mountain stone and cobblestones are actually used, the adopted raw materials are natural resources, the mountain stone needs to be mined, and the ecological environment is greatly damaged.
Disclosure of Invention
The invention aims to provide a construction process of a coal gangue gabion wall of a coal mine, so as to solve the problem of great damage to the ecological environment.
In order to achieve the above purpose, the present invention provides the following technical solutions: comprising the following steps: the metal net cage comprises a metal net cage, a partition plate and a filling material, wherein the partition plate is movably inserted in the middle of the metal net cage, and the filling material is filled in the metal net cage;
the metal net cage is of a top opening structure;
the filling material comprises untreated raw materials and treated raw materials;
the untreated raw materials comprise coal gangue raw materials, and the treated raw materials comprise coal gangue spheres and coal gangue cement.
Preferably, the length of the gangue raw material is 2-10 cm, the width and the height are 2-5 cm, the gangue spheres are circularly ground by a stone circular grinder, so that the sphericity of the gangue spheres is 0-0.9, the particle sizes of the gangue spheres are all larger than the size of the metal mesh cage holes, and the gangue cement is prepared by grinding together gangue, slag, fly ash, silicate cement clinker and an activating agent in a mass ratio of 5-9:1-2:1-2:2-4:0.2-0.5.
Preferably, the metal net cage is provided with a splicing groove in the inner part corresponding to the position of the partition plate, so that the partition plate divides the metal net cage into two independent spaces with the volume ratio of 2:1.
Preferably, the width of the metal net cage is 30cm, and the metal net cage is a corrosion-resistant stainless steel material component.
According to the construction process of the coal gangue gabion wall of the coal mine, the construction process is characterized by comprising the following steps of: the method comprises the following steps:
s1, preparation of construction: cleaning side slope garbage, and marking current river surfaces and excavation lines;
s2, slope excavation: digging a groove on a side slope according to the digging line, and tamping a bottom foundation of the groove to enable the base surface of the groove to be 10cm lower than the current river surface;
s3, installing a metal net cage: the metal net cage is vertically placed in the groove, the opening position of the metal net cage is upwards, and the partition plate is inserted into the metal net cage, so that the metal net cage is divided into two independent spaces with the volume ratio of 2:1;
s4, preparing filling materials: selecting gangue raw materials with the length of 2-10 cm and the width and height of 2-5 cm, cleaning the surface to remove impurities, and selecting the gangue raw materials with the volume of less than 50cm 3 And (3) conveying the gangue raw material into a stone circular mill for circular grinding treatment to obtain gangue spheres.
S5, filler treatment: mixing gangue cement and water according to the proportion of 1:3, preparing cement paste, uniformly spraying the cement paste on the gangue raw material and the gangue spheres in the step S4, and standing for waiting for the cement paste to dry;
s6, manufacturing a gabion wall: compactly filling the gangue raw material coated with the cement paste and the gangue spheres coated with the cement paste in the step S5 into two independent spaces in a metal mesh cage, then extracting a partition plate to enable the gangue spheres to be automatically plugged into the space between the gangue raw materials, supplementing the gangue spheres to enable the stacking height of the gangue spheres to be the same as that of the gangue, and finally installing an end cover on the metal mesh cage to prevent the gangue raw materials and the gangue spheres from separating from the metal mesh cage, thereby completing the manufacture of a coal mine gangue cage wall;
s7, ecological greening construction: river sand, crushed crop straw particles, a nutritional agent and plant seeds are uniformly mixed and sprayed on a coal mine gangue cage wall and a side slope, and water spraying and maintenance are carried out for 2-3 months.
Preferably, in the step S1, the width of the excavated line is equal to the width of the metal mesh cage.
Preferably, in the step S6, the coal mine gangue gabion wall is gravity type, slope pasting type or step type.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention also selects larger gangue to be directly used as a part of a gangue cage wall, only needs to be coated with cement paste coated by gangue cement, does not need other operations, greatly saves resources, and simultaneously selects smaller gangue raw materials to be sent into a stone circular mill for circular grinding treatment to obtain gangue spheres.
Drawings
FIG. 1 is a schematic diagram of the overall construction process of a coal gangue cage wall in a coal mine.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: comprising the following steps: the metal net cage is formed by a metal net cage, a partition plate and a filling material, wherein the partition plate is movably inserted in the middle of the metal net cage, and the filling material is filled in the metal net cage;
the metal net cage is of a top opening structure;
the filling material comprises untreated raw materials and treated raw materials;
the untreated raw materials comprise gangue raw materials, and the treated raw materials comprise gangue spheres and gangue cement.
The length of the gangue raw material is 2-10 cm, the width and the height are 2-5 cm, the gangue spheres are circularly ground by a stone circular grinder, so that the sphericity of the gangue spheres is 0-0.9, the particle size of the gangue spheres is larger than the size of a metal mesh cage hole, and the gangue cement is prepared by grinding the gangue, slag, fly ash, silicate cement clinker and an activator together in a mass ratio of 5-9:1-2:1-2:2-4:0.2-0.5.
The metal net cage is provided with a splicing groove corresponding to the inner part of the position of the partition plate, so that the partition plate divides the metal net cage into two independent spaces with the volume ratio of 2:1.
The width of the metal net cage is 30cm, and the metal net cage is a corrosion-resistant stainless steel material component.
According to the construction process of the coal gangue gabion wall of the coal mine, the construction process is characterized by comprising the following steps of: the method comprises the following steps:
s1, preparation of construction: cleaning side slope garbage, and marking current river surfaces and excavation lines;
s2, slope excavation: digging a groove on a side slope according to the digging line, and tamping a bottom foundation of the groove to enable the base surface of the groove to be 10cm lower than the current river surface;
s3, installing a metal net cage: the metal net cage is vertically placed in the groove, the opening position of the metal net cage is upwards, and the partition plate is inserted into the metal net cage, so that the metal net cage is divided into two independent spaces with the volume ratio of 2:1;
s4, preparing filling materials: selecting gangue raw materials with the length of 2-10 cm and the width and height of 2-5 cm, cleaning the surface to remove impurities, and selecting the gangue raw materials with the volume of less than 50cm 3 And (3) conveying the gangue raw material into a stone circular mill for circular grinding treatment to obtain gangue spheres.
S5, filler treatment: mixing gangue cement and water according to the proportion of 1:3, preparing cement paste, uniformly spraying the cement paste on the gangue raw material and the gangue spheres in the step S4, and standing for waiting for the cement paste to dry;
s6, manufacturing a gabion wall: compactly filling the gangue raw material coated with the cement paste and the gangue spheres coated with the cement paste in the step S5 into two independent spaces in a metal mesh cage, then extracting a partition plate to enable the gangue spheres to be automatically plugged into the space between the gangue raw materials, supplementing the gangue spheres to enable the stacking height of the gangue spheres to be the same as that of the gangue, and finally installing an end cover on the metal mesh cage to prevent the gangue raw materials and the gangue spheres from separating from the metal mesh cage, thereby completing the manufacture of a coal mine gangue cage wall;
s7, ecological greening construction: river sand, crushed crop straw particles, a nutritional agent and plant seeds are uniformly mixed and sprayed on a coal mine gangue cage wall and a side slope, and water spraying and maintenance are carried out for 2-3 months.
In the step S1, the width of the excavation line is equal to the width of the metal net cage.
And S6, the gravity type slope pasting type or stepped type coal gangue gabion wall is adopted in the step of coal mining.
Example 1
Comprising the following steps: the metal net cage is formed by a metal net cage, a partition plate and a filling material, wherein the partition plate is movably inserted in the middle of the metal net cage, and the filling material is filled in the metal net cage;
the metal net cage is of a top opening structure;
the filling material comprises untreated raw materials and treated raw materials;
the untreated raw materials comprise gangue raw materials, and the treated raw materials comprise gangue spheres and gangue cement.
The length of the gangue raw material is 2-10 cm, the width and the height are 2-5 cm, the gangue spheres are circularly ground by a stone circular grinder, so that the sphericity of the gangue spheres is 0-0.9, the particle size of the gangue spheres is larger than the size of the metal mesh cage holes, and the gangue cement is prepared by grinding gangue, slag, fly ash, silicate cement clinker and an activator together in a mass ratio of 5:1:1:4:0.5.
The metal net cage is provided with a splicing groove corresponding to the inner part of the position of the partition plate, so that the partition plate divides the metal net cage into two independent spaces with the volume ratio of 2:1.
The width of the metal net cage is 30cm, and the metal net cage is a corrosion-resistant stainless steel material component.
According to the construction process of the coal gangue gabion wall of the coal mine, the construction process is characterized by comprising the following steps of: the method comprises the following steps:
s1, preparation of construction: cleaning side slope garbage, and marking current river surfaces and excavation lines;
s2, slope excavation: digging a groove on a side slope according to the digging line, and tamping a bottom foundation of the groove to enable the base surface of the groove to be 10cm lower than the current river surface;
s3, installing a metal net cage: the metal net cage is vertically placed in the groove, the opening position of the metal net cage is upwards, the partition plate is inserted into the metal net cage, the metal net cage is divided into two independent spaces with the volume ratio of 2:1, and one end with the larger volume corresponds to the upstream surface of the side slope;
s4, preparing filling materials: selecting gangue raw materials with the length of 2-10 cm and the width and height of 2-5 cm, cleaning the surface to remove impurities, and selecting the gangue raw materials with the volume of less than 50cm 3 And (3) conveying the gangue raw material into a stone circular mill for circular grinding treatment to obtain gangue spheres.
S5, filler treatment: mixing gangue cement and water according to the proportion of 1:3, preparing cement paste, uniformly spraying the cement paste on the gangue raw material and the gangue spheres in the step S4, and standing for waiting for the cement paste to dry;
s6, manufacturing a gabion wall: densely filling the coal gangue raw material coated with cement paste in the step S5 at one end with larger volume in the metal mesh cage in the step S3, densely filling the coal gangue sphere coated with cement paste in the step S5 at one end with smaller volume in the metal mesh cage in the step S3, then extracting a partition plate, so that the coal gangue sphere can be automatically plugged into a space between the coal gangue raw materials, supplementing the coal gangue sphere to enable the coal gangue sphere stacking height to be the same as the coal gangue stacking height, and finally installing an end cover on the metal mesh cage to prevent the coal gangue raw material and the coal gangue sphere from separating from the metal mesh cage, thereby completing the manufacture of the coal gangue cage wall of the coal mine;
s7, ecological greening construction: river sand, crushed crop straw particles, a nutritional agent and plant seeds are uniformly mixed and sprayed on a coal mine gangue cage wall and a side slope, and water spraying and maintenance are carried out for 2-3 months.
In the step S1, the width of the excavation line is equal to the width of the metal net cage.
And in the step S6, the coal mine gangue gabion wall is gravity type.
Example two
Unlike the first embodiment, the following is: the length of the gangue raw material is 2-10 cm, the width and the height are 2-5 cm, the gangue spheres are circularly ground by a stone circular grinder, so that the sphericity of the gangue spheres is 0-0.9, the particle size of the gangue spheres is larger than the size of the metal mesh cage holes, and the gangue cement is prepared by grinding gangue, slag, fly ash, silicate cement clinker and an activator together in a mass ratio of 6:1:1:2:0.3.
Example III
Unlike the first embodiment, the following is: the length of the gangue raw material is 2-10 cm, the width and the height are 2-5 cm, the gangue spheres are circularly ground by a stone circular grinder, so that the sphericity of the gangue spheres is 0-0.9, the particle size of the gangue spheres is larger than the size of the metal mesh cage holes, and the gangue cement is prepared by grinding the gangue, slag, fly ash, silicate cement clinker and an activator together in a mass ratio of 9:2:2:2:0.5.
Example IV
Unlike the first embodiment, the following is: in the step S6, the gangue cage wall of the coal mine is a slope-pasting type.
Example five
Unlike the first embodiment, the following is: in the step S6, the gangue cage wall of the coal mine is stepped.
Example six
Unlike the first embodiment, the following is: and vertically placing the metal net cage into the groove, enabling the opening position of the metal net cage to be upward, inserting the partition plate into the metal net cage, dividing the metal net cage into two independent spaces with the volume ratio of 2:1, and enabling one end with a larger volume to correspond to the upstream surface of the side slope.
Example seven
Unlike the first embodiment, the following is: and (3) densely filling the coal gangue raw material coated with the cement paste in the step (S5) at one end with smaller volume in the metal mesh cage in the step (S3), densely filling the coal gangue ball coated with the cement paste in the step (S5) at one end with larger volume in the metal mesh cage in the step (S3), and then extracting the partition plate, so that the coal gangue ball can be automatically plugged into the space between the coal gangue raw materials, supplementing the coal gangue ball to enable the stacking height of the coal gangue ball to be the same as that of the coal gangue, and finally installing an end cover on the metal mesh cage to prevent the coal gangue raw material and the coal gangue ball from separating from the metal mesh cage, thereby completing the manufacture of the coal gangue cage wall of the coal mine.
Example eight
Unlike embodiment seven, the following is: and vertically placing the metal net cage into the groove, enabling the opening position of the metal net cage to be upward, inserting the partition plate into the metal net cage, dividing the metal net cage into two independent spaces with the volume ratio of 2:1, and enabling one end with a larger volume to correspond to the upstream surface of the side slope.
Working principle: when the plant is used, after the concrete implementation of the embodiment is carried out for one year, the water blocking capacity and the water and soil loss preventing capacity of the first embodiment are optimal, meanwhile, vegetation grows more vigorously, plant roots extend into the coal gangue raw materials and the coal gangue balls, rooting capacity is higher, accordingly, the adhesion to soil is higher, further, more soil can be locked through cooperation of plants and gabion walls, the water and soil loss is serious in the sixth embodiment, when the water and soil loss is carried out, the coal gangue balls in gaps of the coal gangue raw materials can be flushed and dispersed, and the soil cannot be blocked from entering a river channel, so that the vegetation survival rate is lower.
The invention also discloses a method for recycling the coal gangue cement coated cement, which comprises the steps of selecting a large part of coal gangue cement coated cement slurry as a part of a coal gangue cage wall, and adopting a small coal gangue raw material to be sent into a stone circular mill for circular grinding treatment.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A construction process of a coal gangue cage wall of a coal mine is characterized by comprising the following steps: the coal mine gangue gabion wall adopted by the construction process comprises the following components: the metal net cage comprises a metal net cage, a partition plate and a filling material, wherein the partition plate is movably inserted in the middle of the metal net cage, and the filling material is filled in the metal net cage;
the metal net cage is of a top opening structure, and a plugging groove is formed in the metal net cage corresponding to the position of the partition plate, so that the partition plate divides the metal net cage into two independent spaces with the volume ratio of 2:1;
the filling material comprises untreated raw materials and treated raw materials;
the untreated raw materials comprise coal gangue raw materials, and the treated raw materials comprise coal gangue spheres and coal gangue cement;
the construction process comprises the following steps:
s1, preparation of construction: cleaning side slope garbage, and marking current river surfaces and excavation lines;
s2, slope excavation: digging a groove on a side slope according to the digging line, and tamping a bottom foundation of the groove to enable the base surface of the groove to be 10cm lower than the current river surface;
s3, installing a metal net cage: the metal net cage is vertically placed in the groove, the opening position of the metal net cage is upwards, and the partition plate is inserted into the metal net cage, so that the metal net cage is divided into two independent spaces with the volume ratio of 2:1;
s4, preparing filling materials: selecting gangue raw materials with the length of 2-10 cm and the width and height of 2-5 cm, cleaning the surface to remove impurities, and selecting the gangue raw materials with the volume of less than 50cm 3 The gangue raw material is sent into a stone circular mill for circular grinding treatment to obtain gangue spheres;
s5, filler treatment: mixing gangue cement and water according to the proportion of 1:3, preparing cement paste, uniformly spraying the cement paste on the gangue raw material and the gangue spheres in the step S4, and standing for waiting for the cement paste to dry;
s6, manufacturing a gabion wall: tightly filling the coal gangue raw materials coated with cement paste and the coal gangue spheres coated with cement paste in the step S5 in two independent spaces in a metal mesh cage, then extracting a partition plate, enabling the coal gangue spheres to be automatically plugged into the space between the coal gangue raw materials, supplementing the coal gangue spheres so that the stacking height of the coal gangue spheres is the same as that of the coal gangue, and finally installing an end cover on the metal mesh cage to prevent the coal gangue raw materials and the coal gangue spheres from separating from the metal mesh cage and finish the manufacture of a coal gangue cage wall of the coal mine;
s7, ecological greening construction: river sand, crushed crop straw particles, a nutritional agent and plant seeds are uniformly mixed and sprayed on a coal mine gangue cage wall and a side slope, and water spraying and maintenance are carried out for 2-3 months.
2. The coal mine gangue gabion wall of claim 1, wherein: the length of the gangue raw material is 2-10 cm, the width and the height of the gangue raw material are 2-5 cm, the gangue spheres are circularly ground by a stone circular grinder, so that the sphericity of the gangue spheres is 0-0.9, the particle sizes of the gangue spheres are all larger than the size of a metal mesh cage hole, and the gangue cement is prepared by grinding gangue, slag, fly ash, silicate cement clinker and an activator together in a mass ratio of 5-9:1-2:1-2:2-4:0.2-0.5.
3. The construction process of the coal mine gangue gabion wall according to claim 1, wherein the construction process comprises the following steps: the width of the metal net cage is 30cm, and the metal net cage is a corrosion-resistant stainless steel material member.
4. The construction process of the coal mine gangue gabion wall according to claim 1, wherein the construction process comprises the following steps: the width of the excavation line in the step S1 is equal to the width of the metal net cage.
5. The construction process of the coal mine gangue gabion wall according to claim 1, wherein the construction process comprises the following steps: and in the step S6, the coal mine gangue cage wall is gravity type, slope pasting type or stepped type.
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| CN1101017A (en) * | 1993-09-29 | 1995-04-05 | 山东矿业学院 | Coal-stone mixed cement |
| KR100922466B1 (en) * | 2009-03-11 | 2009-10-21 | 김성혁 | Stone Net Bag and its construction Method |
| CN103806465A (en) * | 2012-11-05 | 2014-05-21 | 李鑫 | Technique for applying solid waste in mine area to mine geological environment management engineering construction |
| CN103866776B (en) * | 2014-04-09 | 2016-01-20 | 湖北工业大学 | A kind of building waste gabion wall ecological bank protecting method |
| CN114561905A (en) * | 2021-12-30 | 2022-05-31 | 淮南东辰固废利用有限公司 | Coal mine white rock gangue cage wall and manufacturing method thereof |
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