CN203741781U - Novel reversed filtering structure for tailing pond permeable rock-fill dam upstream slope - Google Patents
Novel reversed filtering structure for tailing pond permeable rock-fill dam upstream slope Download PDFInfo
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- CN203741781U CN203741781U CN201320742277.2U CN201320742277U CN203741781U CN 203741781 U CN203741781 U CN 203741781U CN 201320742277 U CN201320742277 U CN 201320742277U CN 203741781 U CN203741781 U CN 203741781U
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- filtering structure
- filter structure
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- 238000011144 upstream manufacturing Methods 0.000 title claims abstract description 25
- 238000001914 filtration Methods 0.000 title abstract 7
- 239000004746 geotextile Substances 0.000 claims abstract description 15
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 16
- 239000011435 rock Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- -1 macadam Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 238000009958 sewing Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Abstract
The utility model discloses a novel reversed filtering structure for a tailing pond permeable rock-fill dam upstream slope. The reversed filtering structure comprises a rubble layer paved on the tailing pond permeable rock-fill dam upstream slope, a gravel layer paved on the rubber layer, geotextile bags filled with sands from medium size to big size and paved on the gravel layer, wherein the rubble layer, the gravel layer and the geotextile bags are stacked by adopting a gravity type; the reversed filtering structure is lifted along with the lifting of the rock-fill dam, and circulating pavement is realized. The novel reversed filtering structure has the advantages as follows: the geotextile bags filled with sands are stacked on the gravel layer and occluded with each other to form a whole, so that the upstream dam slope is converged and steepened under the premise that the stability of the dam slope is guaranteed, and further the project amount of a reversed filtering layer is reduced; the content of tailings in ore pulp leaked from the inside of the dam body during the ore drawing initial stage is effectively reduced, and the problem of muddy overflow water during the ore drawing initial stage is solved; the novel reversed filtering structure can effectively adapt to foundation deformation, and provides remarkable economic benefits and environmental benefits for enterprises and the society.
Description
Technical field
The utility model relates to environment and safety technics field, relates to the domatic anti-filter structure in permeable loose rock dam upstream, a kind of Novel tailing storehouse.
Background technology
China is a mining powers, and mine year tailing disposal reaches 600,000,000 tons.Except fraction comprehensive utilization, the overwhelming majority is stored in Tailings Dam.Tailings Dam is exactly the association that stores the various facilities of mine tailing, is also to maintain the normal necessary facility of producing in mine.According to statistics, by the end of the year 2012,12273 of the total Tailings Dams in the whole nation, and annual also in the scale with more than 300 newly-increased, in the middle of numerous Tailings Dams, the mode of building a dam accounts for 90% for what adopt that tailings upstream type builds a dam, at upstream type, build a dam in technique, initial dam has far-reaching influence in the drainage effect at ore drawing initial stage to the side slope of tailings fill dam from now on, and therefore in general, tailings reservoir preliminary dam is in the majority with permeable loose rock dam.
China's karst features distribute extensively, area is large.Mainly be distributed in Guangxi, Guizhou, Eastern Yunnan and North Guangdong, the problem such as be easy to produce seepage, subside of building a dam in karst area.The quality of the domatic loaded filter structure in permeable loose rock dam upstream directly has influence on its drainage effect, if the changing of the relative positions appears in loaded filter, the problem such as subside, is easy to cause the tailing water that is rich in tailings to be excreted to downstream, causes environment pollution even to threaten safety of dam body.
Therefore, develop the packed sand of a kind of employing geotextiles, gather into folds and form the new device that an integral body is carried out anti-filter with gravel, debris, not only farthest solved Tailings Dam ore drawing initial stage race muddy water, problem to downstream environment, and can effectively adapt to foundation deformation, solve karst area because subsiding and Deep Soil Layers uneven settlement of foundation causes the problem of loaded filter bad break, improve the security and stability of tailing dam, also can bring upstream dam slope together steepening, reduce loaded filter engineering quantity.
Summary of the invention
The purpose of this utility model is to provide permeable loose rock dam upstream, a kind of Novel tailing storehouse domatic anti-filter structure, and this structure, guaranteeing to bring upstream dam slope together steepening under the stable prerequisite of dam slope, reduces loaded filter engineering quantity.
The technical solution of the utility model is: the domatic anti-filter structure in permeable loose rock dam upstream, a kind of Novel tailing storehouse, it is characterized in that: this anti-filter structure comprises one deck macadam of the Tailings Dam domatic laying in permeable loose rock dam upstream, one deck layer of gravel of laying on macadam, on layer of gravel, lay be equipped with in ~ the geotechnological cloth bag of coarse sand, macadam, layer of gravel, geotechnological cloth bag adopt gravity to stack, described anti-filter structure raises and raises simultaneously with enrockment dam body, and circulation is laid.
Geotechnique in cloth bag in ~ gravel in coarse sand, layer of gravel and the rubble mud content in macadam be all no more than 3%, firmness coefficient is less than 10%.
Geotechnique's cloth bag specification 40cm * 70cm, during geotechnological cloth bag is in-built-coarse sand after thickness 20-30cm, the levels fissure of displacement is stacking, between bag and bag, answer close joint near, mutual interlock, forms an integral body, to guarantee bringing upstream dam slope together steepening under the stable prerequisite of dam slope, reduce loaded filter engineering quantity.
Employing material is 250g/m
2braided geotextile or non-woven geotextile, by 35 the three strands industrial stitching sewing machines of polyamide fibre line, stitch and widely should be greater than 5cm, and suture should not be less than 3 roads (first seam together, Zai Feng bis-roads after folding), guarantees that linear slit is smooth-going evenly, and seam crossing is should plicating suture firm.
The utility model has the advantage of: compare with traditional domatic anti-filter structure in the permeable loose rock dam of Tailings Dam upstream, this structure utilizes the packed sand of the geotextiles of specification 40cm * 70cm to be stacked on layer of gravel, interlock mutually between geotechnique's cloth bag, form an integral body, guaranteeing to bring upstream dam slope together steepening under the stable prerequisite of dam slope, reduce loaded filter engineering quantity; In ~ through geotextiles is packed can effectively prevent the rainy day after filling out time, sand body is washed loss to coarse sand; After the packed sand of geotextiles is staggeredly placed, can effectively reduce the content of tailings the ore pulp water that ore drawing oozes out during the initial stage in dam body, solve the ore drawing initial stage to run a muddy difficult problem; More can effectively adapt to foundation deformation, solve karst area because subsiding and Deep Soil Layers uneven settlement of foundation causes the problem of loaded filter bad break, stability and the validity of permeable loose rock dam loaded filter have been improved, for enterprise and society have brought significant economic benefit and environmental benefit.
Accompanying drawing explanation
Fig. 1 is the permeable loose rock dam of the utility model Tailings Dam upstream domatic anti-filter structure partial sectional view.
The specific embodiment
The domatic anti-filter structure in permeable loose rock dam upstream, Novel tailing storehouse, this structure comprises one deck rubble 1, in one deck gravel 2 and dress ~ the geotechnological cloth bag 3 of coarse sand.
Construction technology process is mainly as follows:
1, the packed sand of geotextiles, in sand, mud content is no more than 3%, and firmness coefficient is less than 10%.Artificial colligation geotechnique cloth bag, repeats a plurality of.
2. measure setting-out.
3. cleaning ground, clears up tailing dam ground, to prevent that the foreign material such as sharp object, stone, tree root from puncturing geotechnological cloth bag.
4, foundation plane ramming levelling.
5, rubble is laid, and rubble mud content is no more than 3%, and firmness coefficient is less than 10%.
6, gravel is laid, and gravel mud content is no more than 3%, and firmness coefficient is less than 10%.
7, the packed sand of geotextiles is laid: geotechnological cloth bag specification is for being about 70cm, wide about 40cm, and material is 250g/m
2braided geotextile or non-woven geotextile, adopt gravity to stack, bag with bag between answer close joint near, levels answers the fissure of displacement stacking.
8, manually smooth.
9, repeat 1-8 flow processs and carry out lay → next circulation of geotechnique's sack dress sand of measurement gravel laying → upper strata, rubble laying → upper strata, setting-out → upper strata, upper strata upwards to design elevation.
Anti-filter structure raises with enrockment dam body simultaneously, and in work progress, rockfill exceeds anti-filter structure and is no more than 1m.
Claims (4)
1. the domatic anti-filter structure in permeable loose rock dam upstream, a Novel tailing storehouse, it is characterized in that: this anti-filter structure comprises one deck macadam of the Tailings Dam domatic laying in permeable loose rock dam upstream, one deck layer of gravel of laying on macadam, on layer of gravel, lay be equipped with in, the geotechnological cloth bag of coarse sand, macadam, layer of gravel, geotechnological cloth bag adopt gravity to stack, described anti-filter structure raises and raises simultaneously with enrockment dam body, and circulation is laid.
2. the domatic anti-filter structure in the permeable loose rock dam in Novel tailing storehouse upstream according to claim 1, is characterized in that: in being equipped with, the geotechnological cloth bag of coarse sand.
3. the domatic anti-filter structure in the permeable loose rock dam in Novel tailing storehouse upstream according to claim 1, it is characterized in that: geotechnological cloth bag specification 40cm * 70cm, thickness 20-30cm during geotechnique's cloth bag is in-built, after coarse sand, the levels fissure of displacement is stacking, between bag and bag, answer close joint near, mutual interlock, forms an integral body, to guarantee bringing upstream dam slope together steepening under the stable prerequisite of dam slope, reduce loaded filter engineering quantity.
4. according to the domatic anti-filter structure in permeable loose rock dam upstream, Novel tailing storehouse described in claim 1,2 or 3, it is characterized in that: in being equipped with, to adopt material be 250g/m for the geotechnological cloth bag of coarse sand
2braided geotextile or non-woven geotextile, by 35 the three strands industrial stitching sewing machines of polyamide fibre line, stitch and widely should be greater than 5cm, and suture should not be less than 3 roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742277.2U CN203741781U (en) | 2013-11-22 | 2013-11-22 | Novel reversed filtering structure for tailing pond permeable rock-fill dam upstream slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742277.2U CN203741781U (en) | 2013-11-22 | 2013-11-22 | Novel reversed filtering structure for tailing pond permeable rock-fill dam upstream slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203741781U true CN203741781U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320742277.2U Expired - Lifetime CN203741781U (en) | 2013-11-22 | 2013-11-22 | Novel reversed filtering structure for tailing pond permeable rock-fill dam upstream slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203741781U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487799A (en) * | 2018-10-19 | 2019-03-19 | 金堆城钼业股份有限公司 | A kind of tailings reservoir preliminary dam loaded filter construction methods |
| CN113171652A (en) * | 2021-04-30 | 2021-07-27 | 矿冶科技集团有限公司 | Tailing reverse filter material, preparation method and application thereof, reverse filter material seepage drainage structure and application thereof |
| CN113412765A (en) * | 2021-05-26 | 2021-09-21 | 浙江同济科技职业学院 | Ecological restoration method for bank hydro-fluctuation belt |
| CN114351681A (en) * | 2021-12-30 | 2022-04-15 | 中国水利水电第七工程局有限公司 | Construction method for back filter layer of vibroflotation pile |
-
2013
- 2013-11-22 CN CN201320742277.2U patent/CN203741781U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487799A (en) * | 2018-10-19 | 2019-03-19 | 金堆城钼业股份有限公司 | A kind of tailings reservoir preliminary dam loaded filter construction methods |
| CN113171652A (en) * | 2021-04-30 | 2021-07-27 | 矿冶科技集团有限公司 | Tailing reverse filter material, preparation method and application thereof, reverse filter material seepage drainage structure and application thereof |
| CN113412765A (en) * | 2021-05-26 | 2021-09-21 | 浙江同济科技职业学院 | Ecological restoration method for bank hydro-fluctuation belt |
| CN114351681A (en) * | 2021-12-30 | 2022-04-15 | 中国水利水电第七工程局有限公司 | Construction method for back filter layer of vibroflotation pile |
| CN114351681B (en) * | 2021-12-30 | 2023-05-05 | 中国水利水电第七工程局有限公司 | Construction method of vibroflotation pile reverse filtering layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |