CN109083098B - Plugging structure for comprehensively treating damaged part of old flood drainage system of tailing pond - Google Patents
Plugging structure for comprehensively treating damaged part of old flood drainage system of tailing pond Download PDFInfo
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- CN109083098B CN109083098B CN201811031340.5A CN201811031340A CN109083098B CN 109083098 B CN109083098 B CN 109083098B CN 201811031340 A CN201811031340 A CN 201811031340A CN 109083098 B CN109083098 B CN 109083098B
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- 239000004576 sand Substances 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims abstract description 15
- 239000004746 geotextile Substances 0.000 claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009825 accumulation Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000000701 coagulant Substances 0.000 claims abstract description 6
- 238000005345 coagulation Methods 0.000 claims abstract description 5
- 230000015271 coagulation Effects 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 39
- 239000004575 stone Substances 0.000 claims description 19
- 239000004567 concrete Substances 0.000 claims description 18
- 239000004568 cement Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 239000004115 Sodium Silicate Substances 0.000 claims description 13
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 239000011362 coarse particle Substances 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000011440 grout Substances 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 15
- 238000007599 discharging Methods 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a plugging structure for comprehensively treating damaged parts of old flood drainage systems of tailing ponds, which is formed by combining a reverse filter gland (1) arranged at the outlet part of the old flood drainage system (3) and plugging coagulants formed by drilling and grouting in tailing accumulation dams of the tailing ponds. The reverse filtering gland (1) comprises a reinforced geotextile, a coarse sand layer, a reinforced geotextile, a gravel layer, a rock block layer and a gabion from inside to outside in sequence; and drilling holes from the top plate of the old flood drainage system structure by using a phi 89-110 drilling machine to form grouting holes (2) in the warehouse, and performing pressurized grouting of comprehensive slurry on the grouting holes (2) in the warehouse to form a three-dimensional network-shaped plugging coagulation body. The invention can quickly play a role in draining water and preventing sand leakage at the outlet part of the old flood drainage system of the tailing pond, forms a large amount of block-shaped coagulants in a short time to plug a leakage channel, and has the advantages of high safety and reliability, low cost and no other potential safety hazards in the later period.
Description
Technical Field
The invention belongs to the technical field of tailing pond safety control, and particularly relates to a measure for leakage blocking of a damaged part of a drainage system of a tailing pond, which is particularly suitable for safety control of a tailing pond with sand leakage and slurry leakage caused by damage of an old drainage system during operation and use, so that dangerous cases are eliminated, and normal operation of the tailing pond is recovered.
Background
The tailings pond is a place for storing tailings or other industrial waste residues discharged after the separation of metal and nonmetal mine ores, and is one of three major control projects of a mine. The tailings pond is an important facility of a mine enterprise, is a high-level debris flow danger source formed by artificial accumulation, and can also be an environmental pollution source; tailings ponds are currently identified by regulations as one of the major sources of danger for non-coal mines; the flood discharge system is an important safety facility of the tailing pond, and ensures that the quality of discharged water (including return water) of the tailing pond reaches the standard under normal conditions and the flood control safety of the tailing pond during the extremely heavy rainstorm. Therefore, the normal, safe and reliable operation of the drainage system of the tailing pond is closely related to the normal production of enterprises, and more importantly, the drainage system of the tailing pond is greatly related to the downstream environmental protection and life and property safety of the tailing pond. Therefore, the normal operation of the flood drainage system and the timely disposal of accidents have important practical significance for the safe operation of the tailings pond.
The tailings pond dammed by adopting the upstream tailings has low cost, and is currently adopted in a large scale in China. The dam body needs to be continuously increased in the use process of the upstream tailings pond, a plurality of sets of flood discharging systems are usually arranged according to a step shape in order to discharge flood in the pond, and old flood discharging systems need to be simultaneously closed when new flood discharging systems are started. Old drainage system is buried in the storehouse and the load that receives constantly increases along with the tailing storehouse is constantly increased, and drainage system shutoff engineering is because the operating space is narrow and small, professional construction team is less and engineering quality is checked and accepted the difficulty, so the damaged accident in later stage that domestic tailing storehouse at present caused because old drainage system shutoff is out of position often causes the sand leakage, leaks thick liquid accident, and then threatens tailing storehouse overall safety and causes the environmental pollution accident.
After a damaged accident occurs to the old flood drainage system of the tailing pond, the saturated tailing accumulation bodies in the pond continuously diffuse downstream along the flood drainage channel through the damaged parts under the action of pressure, the larger the damaged parts are flushed with time, the more the downstream leakage amount of the tailing accumulation bodies in the pond gradually increases, and the tailing accumulation bodies progress to the dam body part, so that serious safety and environmental protection accidents are induced. For the tailings pond with the damage accident of the old flood drainage system, the research and reliable method are adopted to safely and reliably carry out damage plugging in the shortest time, and the important significance is achieved in avoiding the influence of the accident on the safety of the tailings pond and the safety of people and property and environmental pollution caused by the accident on the downstream.
The existing blocking method for the old flood drainage system of the tailing pond after a damage accident has no system solution, and the main field disposal measures mainly comprise two types: one is to carry out a back filtering gland at the outlet part of the flood discharge system; and the other method is to put materials with certain volume, such as branch bundles, sand bags and the like, into the damaged part in the warehouse for blocking, so as to achieve the purpose of blocking the damaged part.
In practical application, the existing method for blocking the damaged accident of the old flood drainage system of the tailing pond has the following problems:
(1) no system provides a disposal method for the damage accident of the old flood drainage system of the tailing pond, and the emergency rescue time is usually delayed due to the fact that the scheme is not clear when the accident is actually disposed.
(2) The existing disposal measures can only solve the problem of temporary leakage stoppage, and have a certain negative effect on permanent plugging because of the poor durability of the thrown materials, so that the materialization safety cannot be realized.
In order to solve the problem of leakage plugging of a flood drainage system of a tailing pond, a paper of ' research on leakage plugging measures of the flood drainage system of the tailing pond published in 7 months in 2009 ' mining technology ', aiming at the water stop failure of an expansion joint in the flood drainage system, a leakage plugging king and a high polymer material are matched for use for grouting, and simultaneously, a water glass-cement plugging is adopted for a leakage point on the wall of a concrete flood drainage pipe. In the plugging measure provided by the article, the grouting material adopts plugging king and high polymer material-polypropylene cement, so that the material cost is high, and the grouting material is not suitable for plugging damaged parts of old drainage systems of tailings ponds; the plugging step is divided into four steps, the construction steps are complex and tedious, and a hemp rope is adopted to plug a section of expansion joint for removing the asphalt hemp thread plate, so that the plugging method is not suitable for the requirement of permanent plugging.
Disclosure of Invention
The invention aims to provide a plugging structure for comprehensively treating damaged parts of old drainage systems of a tailing pond aiming at the technical defects of low reliability and durability, incapability of realizing essential safety and the like of the existing plugging method for the damaged parts of the old drainage systems of the tailing pond, which is used for disposal when the closed and independent old drainage systems of the tailing pond are damaged, so that the requirements of emergency disposal and permanent plugging of the old drainage systems of the tailing pond are met.
In order to achieve the purpose, the plugging structure for comprehensively treating the damaged part of the old flood drainage system of the tailing pond is formed by combining a reverse filter gland distributed at the outlet part of the old flood drainage system, plugging concretes formed by drilling and grouting in a tailing piling dam of the tailing pond:
the reverse filter gland comprises reinforced geotextile, a coarse sand layer, reinforced geotextile, a gravel layer, a crushed stone layer, a rock block layer and a gabion from inside to outside in sequence; the gravel layer is formed by paving coarse sand with the grain size of 0.35-2 mm and the grain fraction content of more than or equal to 95%, the gravel layer is formed by paving gravel with the grain size of 20-40 mm and the grain fraction content of more than or equal to 95%, the gravel layer is formed by paving broken stones with the grain size of 20-50 mm and the grain fraction content of more than or equal to 95%, the stone block layer is formed by paving block stones with the grain size of 50-150 mm and the grain fraction content of more than or equal to 95%, and the gabion stone cage is filled with flaky block stones. The back filter pressing cover forms a permanent pressing carrier to ensure the stability of the side slope.
The plugging coagulation body is constructed by adopting the following process and steps:
step 1: in a tailing accumulation dam of a tailing pond, a phi 89-110 drilling machine is adopted to drill holes from a top plate of an old flood drainage system structure to penetrate through the outer wall of the old flood drainage system structure to a bottom plate of the old flood drainage system structure, so that grouting holes in the pond are formed;
step 2: after the internal conditions of the old flood drainage system structures are mastered through the step 1, a drill bit of a drilling machine is lifted to the top plate part of the old flood drainage system structures to perform pressurized filling of comprehensive slurry on grouting holes in a warehouse, and plugging coagulants can be formed in the grouting holes in the warehouse, the old flood drainage system and leakage channels in the old flood drainage system structures in a short time. According to concrete structures of grouting holes in a warehouse, old flood discharging systems and leakage channels inside old flood discharging system structures, the plugging concretes are generally in a three-dimensional network structure.
The comprehensive slurry material is formed by mixing cement, tailings, water-soluble sodium silicate and an underwater undispersed concrete flocculating agent; the Baume degree of the water-soluble sodium silicate is 38.4-48.3, and the mixing amount accounts for 3-4% of the cement amount; the underwater undispersed concrete flocculant is of a UWB-II type, and the doping amount accounts for 2-5% of the cement consumption; the tailings are graded coarse-particle tailings, and the mass of particles with the particle size larger than 0.5mm in the tailings exceeds 55% of the total mass.
In the comprehensive slurry material, the mass ratio of water, cement, water-soluble sodium silicate and the underwater undispersed concrete flocculant can be (1-0.6) to (1: (0.03-0.04) and (0.02-0.05).
The gabion is 1.0-2 m long and wide and 0.5-1 m high, and a PVC protective layer is coated on the surface of a steel wire of the gabion. The specification of the reinforced geotextile (4) is 430-475 g/m2Most preferably 450g/m2。
The blocking structure for comprehensively treating the damaged part of the old flood drainage system of the tailing pond has the following beneficial effects after adopting the technical scheme:
(1) this block structure can play the drainage leakproof effect rapidly at the old flood drainage system exit position in tailing storehouse, and fine particle natural aggregate can effectively filter the drainage conversely, and coarse particle natural aggregate and gabion can carry out effective gland to damaged oral area, ensure that the anti-structure of straining normally plays a role to form permanent pressure carrier, ensure the side slope stability.
(2) The plugging structure is poured in the position in the old flood drainage system reservoir of the tailing reservoir by adopting cement, tailing, water-soluble sodium silicate and underwater undispersed concrete flocculant comprehensive slurry, a large amount of massive coagulants can be formed in a short time to plug a leakage channel, and effective strength is formed in a leakage space along with the time; the comprehensive slurry has a better flocculation effect underwater, can ensure that slurry materials do not disperse and separate underwater, and enhances the timeliness of the plugging body.
(3) The plugging structure accords with the general principle of plugging and water stopping of the tailing pond of front retaining and rear discharging, realizes that the emergency plugging process is synchronous to finish permanent plugging slope pressing operation, has high safety and reliability, is low in cost, does not generate other potential safety hazards in the later period, and can meet the plugging requirement after the old flood drainage system of the tailing pond is damaged.
Drawings
Fig. 1 is a cross sectional structure diagram of a plugging structure for comprehensively treating damaged parts of an old flood drainage system of a tailing pond;
fig. 2 is a schematic structural view of a reverse filtering gland at the outlet part of an old flood discharging system of a plugging structure for comprehensively treating damaged parts of the old flood discharging system of a tailing pond according to the invention;
fig. 3 is a schematic diagram of arrangement of grouting at the internal part of an old flood drainage system of a plugging structure for comprehensively treating damaged parts of the old flood drainage system of a tailing pond.
The reference signs are: 1-a reverse filter gland; 2-grouting holes in the warehouse; 3-old flood drainage system; 4-reinforced geotextile; 5-coarse sand layer; 6-a gravel layer; 7-a rubble layer; 8-a block stone layer; 9-gabion; 10-top plate of old flood drainage system structure; 11-old drainage system structure bottom plate.
Detailed Description
For further description of the invention, the following will explain in detail a plugging structure for comprehensively treating damaged parts of old flood drainage systems of tailings ponds in combination with the attached drawings and embodiments.
The invention relates to a plugging structure for comprehensively treating damaged parts of an old flood drainage system of a tailing pond, which is completed in the research, development and implementation processes of a national science fund project (number: 51539006) by an inventor.
The cross-sectional structure schematic diagram of the plugging structure for comprehensively treating the damaged part of the old flood drainage system of the tailing pond shown in figure 1 is combined with figure 2, and the plugging structure for comprehensively treating the damaged part of the old flood drainage system of the tailing pond is formed by combining a reverse filter gland 1 arranged at the outlet part of an old flood drainage system 3, plugging concretes formed by drilling and grouting in a tailing piling dam of the tailing pond, and the like, wherein the plugging concretes are formed by the following steps:
the reverse filter gland 1 sequentially comprises reinforced geotextile 4, a coarse sand layer 5, reinforced geotextile 4, a gravel layer 6, a gravel layer 7, a block stone layer 8 and a gabion 9 from inside to outside, and the reverse filter gland 1 forms a permanent pressure carrier to ensure the stability of the side slope. The specification of the reinforced geotextile 4 is 450g/m2The reinforced geotextile 4 plays a role in reverse filtration and drainage, ensures the stability of the coarse sand layer 5, and simultaneously cuts off the outward loss of fine particles in the old drainage system 3. The coarse sand layer 5 is formed by laying coarse sand with the grain size of 0.35-2 mm and the grain fraction content of more than or equal to 95%, and the coarse sand layer 5 plays a role in reverse filtration and drainage and serves as a support body of the reinforced geotextile 4; the gravel layer 6 is formed by paving gravels with the grain size of 20-40 mm and the grain fraction content of more than or equal to 95%, and the gravel layer 6 can play a transition role between the coarse sand layer 5 and the gravel layer 7 to support coarse sand bodies; the gravel layer 7 is formed by paving broken stones with the grain sizes of 20-50 mm and the grain fraction content of more than or equal to 95%, and the gravel layer 7 can play a transition role between the gravel layer 6 and the block stone layer 8 to prevent gravel displacement; the stone layer 8 is formed by paving stone blocks with the grain sizes of 50-150 mm and the grain fraction content of more than or equal to 95%, and the stone block layer 8 can play a transition role between the gravel layer 7 and the gabion 9 to prevent the gravel from moving; the interior flaky lump stone of gabion 9, the length, width of gabion 9 all are 1.0 ~ 2m, high 0.5 ~ 1m, and the steel wire surface cladding pvc protective layer of gabion 9, and gabion 9 carries out the gland at outermost, can play the effect of the stable anti-filter gland structure of whole.
As shown in fig. 3, the arrangement schematic diagram of grouting at the internal part of the old flood drainage system of the plugging structure for comprehensively treating the damaged part of the old flood drainage system of the tailing pond shows that the plugging concretion is constructed by adopting the following process and steps:
step 1: in a tailing accumulation dam of a tailing pond, drilling holes from a top plate 10 of an old flood drainage system structure to penetrate through the outer wall of an old flood drainage system 3 to a bottom plate 11 of the old flood drainage system structure by using a phi 89-110 drilling machine to perform hole exploration operation, and forming grouting holes 2 in the pond;
step 2: after the internal condition of the old flood discharging system 3 structure is mastered through the step 1, a drill bit of a drilling machine is lifted to the top plate 10 of the old flood discharging system structure to perform pressurized filling of comprehensive slurry on a grouting hole 2 in a warehouse, a three-dimensional network-shaped plugging coagulation body is formed in the grouting hole 2 in the warehouse, the old flood discharging system 3 and a leakage channel in the old flood discharging system structure, and effective strength is formed in a leakage space along with the time lapse; the comprehensive slurry material is formed by mixing cement, tailings, water-soluble sodium silicate and an underwater undispersed concrete flocculating agent. The comprehensive slurry has a better flocculation effect underwater, can ensure that the cementing material does not disperse and separate underwater, and enhances the timeliness of the plugging body.
The tailings are graded coarse-particle tailings, and the mass of particles with the particle size larger than 0.5mm in the tailings exceeds 50% of the total mass; the Baume degree of the water-soluble sodium silicate is 38.4-48.3, and the mixing amount accounts for 3-4% of the cement amount; the underwater undispersed concrete flocculant is of a UWB-II type, and the doping amount accounts for 2-5% of the cement consumption.
In the comprehensive slurry material, the mass ratio of water, cement, water-soluble sodium silicate and the underwater undispersed concrete flocculant can be (1-0.6) to (1: (0.03-0.04) and (0.02-0.05).
The application of the plugging structure for comprehensively treating the damaged part of the old flood drainage system of the tailing pond shows that the plugging structure can rapidly play a role in draining water and preventing sand leakage at the outlet part of the old flood drainage system of the tailing pond, fine-particle natural aggregate can effectively perform reverse filtration and drainage, coarse-particle natural aggregate and gabion can effectively cover the damaged opening part, the reverse filtration structure is ensured to normally play a role, a permanent pressure carrier is formed, and the stability of a side slope is ensured. The method adopts cement, tailing, water-soluble sodium silicate and underwater undispersed concrete flocculant comprehensive slurry to fill the positions in the old flood drainage system of the tailing pond, can form a large amount of massive coagulants in a short time to plug leakage channels, and form effective strength in leakage spaces along with the time; the comprehensive slurry has a better flocculation effect underwater, can ensure that slurry materials do not disperse and separate underwater, and enhances the timeliness of the plugging body. The method conforms to the general principle of plugging and water stopping of the tailing pond with front and rear baffles, realizes the synchronous completion of permanent plugging and slope pressing operation in the emergency plugging process, has high safety and reliability, is low in cost, does not generate other potential safety hazards in the later period, and can meet the plugging requirement after the old flood drainage system of the tailing pond is damaged.
Claims (5)
1. The utility model provides a plugging structure who synthesizes management is carried out damaged department to old drainage system of tailing storehouse which characterized in that it comprises the back filter gland (1) of laying in old drainage system (3) export position, the shutoff coagulation body combination of drilling, grout formation in the tailings of tailing storehouse is piled up the dam:
the reverse filtering gland (1) comprises a reinforced geotextile (4), a coarse sand layer (5), a reinforced geotextile (4), a gravel layer (6), a gravel layer (7), a block stone layer (8) and a gabion (9) from inside to outside in sequence; the gravel layer is characterized in that the coarse sand layer (5) is formed by paving coarse sand with the grain size of 0.35-2 mm and the grain fraction content of more than or equal to 95%, the gravel layer (6) is formed by paving gravel with the grain size of 20-40 mm and the grain fraction content of more than or equal to 95%, the gravel layer (7) is formed by paving broken stones with the grain size of 20-50 mm and the grain fraction content of more than or equal to 95%, and the block stone layer (8) is formed by paving block stones with the grain size of 50-150 mm and the grain fraction content of more than or equal to 95%; flaky lump stones are arranged in the gabion (9);
the plugging coagulation body is constructed by adopting the following steps:
step 1: in a tailing accumulation dam of a tailing pond, a phi 89-110 drilling machine is adopted to drill a hole from a top plate (10) of an old flood drainage system structure to penetrate through the outer wall of an old flood drainage system (3) to a bottom plate (11) of the old flood drainage system structure to form a grouting hole (2) in the pond;
step 2: after the internal conditions of the old flood drainage system (3) structure are mastered through the step 1, a drill bit of a drilling machine is lifted to a top plate (10) of the old flood drainage system structure to perform pressurized filling of comprehensive slurry on grouting holes (2) in a warehouse, and three-dimensional network-shaped plugging coagulants are formed in leakage channels inside the warehouse grouting holes (2), the old flood drainage system (3) and the old flood drainage system structure.
2. The plugging structure for comprehensively treating damaged parts of an old flood drainage system of a tailing pond according to claim 1, wherein the plugging structure comprises: the comprehensive slurry material is formed by mixing cement, tailings, water-soluble sodium silicate and an underwater undispersed concrete flocculating agent; the Baume degree of the water-soluble sodium silicate is 38.4-48.3, and the mixing amount accounts for 3-4% of the cement amount; the underwater undispersed concrete flocculant is of a UWB-II type, and the doping amount accounts for 2-5% of the cement consumption; the tailings are graded coarse-particle tailings, and the mass of particles with the particle size larger than 0.5mm in the tailings exceeds 55% of the total mass.
3. The plugging structure for comprehensively treating damaged parts of an old flood drainage system of a tailing pond according to claim 1, wherein the plugging structure comprises: the comprehensive slurry material is formed by mixing cement, tailings, water-soluble sodium silicate and an underwater undispersed concrete flocculating agent; the Baume degree of the water-soluble sodium silicate is 38.4-48.3; in the comprehensive slurry material, the mass ratio of water, cement, water-soluble sodium silicate and the underwater undispersed concrete flocculant is (1-0.6) to 1: (0.03-0.04): 0.02-0.05); the tailings are graded coarse-particle tailings, and the mass of particles with the particle size larger than 0.5mm in the tailings exceeds 55% of the total mass.
4. The plugging structure for comprehensively treating the damaged part of the old flood drainage system of the tailings pond as claimed in claim 2 or 3, wherein: the gabion (9) is 1.0-2 m long and wide and 0.5-1 m high, and a pvc protective layer is coated on the surface of a steel wire of the gabion (9).
5. The plugging structure for comprehensively treating the damaged part of the old flood drainage system of the tailing pond as claimed in claim 4, wherein: the specification of the reinforced geotextile (4) is 430-475 g/m2。
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| CN201820312915 | 2018-03-07 | ||
| CN201820312915X | 2018-03-07 |
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| CN109083098B true CN109083098B (en) | 2020-05-19 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3519225A1 (en) * | 1985-05-29 | 1986-12-04 | Közlekedési és Metró Epitö Vállalat, Budapest | Method of constructing slope-supporting bodies required for hydraulic spoil heaps, and arrangement for carrying out the method |
| CN201713790U (en) * | 2010-06-11 | 2011-01-19 | 长沙有色冶金设计研究院 | Structure preventing muddy water from leaking out of primary dam of tailing reservoir of mine |
| CN105951849A (en) * | 2016-06-24 | 2016-09-21 | 陕西冶金设计研究院有限公司 | Tailings pond potential safety hazard treatment system and treatment method thereof |
-
2018
- 2018-09-05 CN CN201811031340.5A patent/CN109083098B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3519225A1 (en) * | 1985-05-29 | 1986-12-04 | Közlekedési és Metró Epitö Vállalat, Budapest | Method of constructing slope-supporting bodies required for hydraulic spoil heaps, and arrangement for carrying out the method |
| CN201713790U (en) * | 2010-06-11 | 2011-01-19 | 长沙有色冶金设计研究院 | Structure preventing muddy water from leaking out of primary dam of tailing reservoir of mine |
| CN105951849A (en) * | 2016-06-24 | 2016-09-21 | 陕西冶金设计研究院有限公司 | Tailings pond potential safety hazard treatment system and treatment method thereof |
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Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Co-patentee after: HUAWEI METAL MINERAL RESOURCE EFFICIENT RECYCLING UTILIZATION NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Address before: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Co-patentee before: HUAWEI METAL MINERAL RESOURCE EFFICIENT RECYCLING UTILIZATION NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH Co.,Ltd. |