CN201924381U - Side slope film paving structure for ardealite slag field - Google Patents
Side slope film paving structure for ardealite slag field Download PDFInfo
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- CN201924381U CN201924381U CN2011200343963U CN201120034396U CN201924381U CN 201924381 U CN201924381 U CN 201924381U CN 2011200343963 U CN2011200343963 U CN 2011200343963U CN 201120034396 U CN201120034396 U CN 201120034396U CN 201924381 U CN201924381 U CN 201924381U
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- Prior art keywords
- ardealite
- slope
- side slope
- slag
- hillside
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The utility model relates to a side slope film paving structure for an ardealite slag field. An ardealite side slope (20) which is built by ardealite slag and has the water content between -3 percent to +2 percent of the optimal water content and the density higher than more than 95 percent of the dry density is tightly pasted on the outer surface of a mountain slope (11) of a mountain body (10) of the ardealite slag field (100) with the slop rate higher than 2.5/1, an outer slop surface (21) adopting the ardealite for slop pasting has the slop ratio lower than or equal to 1.75/1, in addition, the width of the outer slop surface (21) is greater than or equal to the minimum operation width of milling equipment, the ardealite side slop surface (21) is compactly pressed and is smooth, and an anti-seepage film (30) is paved on the outer surface. An anti-seepage structure adopting the ardealite pasting slop as a pad layer provides a reliable pad layer for the pavement of a high-density polyethylene (HDPE) film, and the damage of the HDPE film caused by sedimentation downwards pulling of the accumulated and stored ardealite can be prevented.
Description
Technical field
The utility model relates to the seepage control project of ardealite slag field, particularly relates to shop, slope film is pasted in mountain valley-type ardealite slag field by steep hillside side structure.
Background technology
Phosphorus is the important element that promotes animal and plant growth.Modern phosphor resource mainly obtains by the mode of using phosphate rock relieving haperacidity.There is abundant phosphate rock resource in China, and the apatite reserves account for 1/3rd of the world.World's phosphate rock output is used to produce phosphate fertilizer more than 90%.Wherein, producing phosphoric acid (wet method relieving haperacidity) by sulfuric acid and apatite reaction is a kind of mode that the most extensively adopts.By 2007, China has surpassed the U.S. became the big production of phosphate fertilizer of the first in the world state.With phosphorus pentoxide (P
2O
5) the phosphoric acid output calculated, about 1,300 ten thousand tons of China, about 1,200 ten thousand tons of the U.S..
In the process of wet method relieving haperacidity, can produce a large amount of by-product ardealites.The P that every production is one ton
2O
5, with the by-product ardealite that produces 4.5 to 5.5 tons.Ardealite is mainly by calcium sulphate dihydrate (CaSO
42H
2O) form, and contain a spot of silicide and unreacted rock phosphate in powder.The ardealite total amount of the annual discharging of China is above 5,000 ten thousand tons.
Contain the higher acid pore water of contaminative in the pore water of ardealite, therefore, the place of storing up of ardealite generally all needs to lay HDPE film (density polyethylene film with high) to prevent oozing contaminated environment under the acid water.To between the 2.0mm, it is anti-to pierce through intensity and tensile strength is limited to the thickness of HDPE film between 1.5mm, and therefore, the laying of antiseepage film is very high to the requirement of film underlayer material.Can not contain the bulky grain that particle diameter surpasses 7mm in the film underlayer material, otherwise antiseepage film is punctured probably, loses the antiseepage function.(generally not suddenly in 2.5: 1 slope ratio) adopts the course of clay as the HDPE film usually in the slow zone of the gradient.Yet, for the gradient suddenly in 2.5: 1 zone, the laying of clay bed course very the difficulty in addition can't realize.In refuse landfill, extensively use GCL (waterproof bentonite pad) as HDPE film bed course.Yet, the mode of using the GCL bed course to prevent that the HDPE film is pierced is also infeasible in the steeper ardealite slag field of the hillside gradient, because the frictional force between HDPE film and the ardealite is bigger, and the frictional force between HDPE film and the GCL is very little, the HDPE film can produce stretcher strain under the following power of the dragging effect that produces because of the ardealite sedimentation, until last tear failure, cause acid pore water to leak.
Summary of the invention
The technical problems to be solved in the utility model provides a kind ofly provides reliable bed course under the gradient slope condition HDEP film and is preventing to drag under the HDEP film is because of the ardealite sedimentation of storing up the structure that the ardealite slag field side slope of destruction is spread film.
For solving the problems of the technologies described above, the utility model provides side slope shop, a kind of ardealite slag field membrane structure, it is characterized in that, at the massif of ardealite slag field suddenly in the slope hillside external surface than 2.5: 1 be glued with water content be optimum water content-3% to+2% between, density is the ardealite side slope that the ardealite slag more than 95% of maximum dry density builds up, the outer slope that described ardealite pastes the slope delay in or equal 1.75: 1 sloping ratios, and its width is more than or equal to the minimum operation of rolling apparatus width; Described ardealite side slope outer slope is compacted and smooth, external surface is equipped with antiseepage film.
The gradient that the gradient is delayed the outer slope of the described ardealite side slope of the described hillside external surface than 1.75: 1 in the slope is consistent with the gradient on described hillside; The gradient suddenly in the slope the described ardealite side slope of described hillside external surface than 1.75: 1 up-narrow and down-wide, make the outer slope of described ardealite side slope delay in or equal 1.75: 1 slope ratios.
Described ardealite side slope is that stacked up and down multistage ardealite pastes the slope, and the height that each grade ardealite pastes the slope is 7.5m.
Dig the catchwater that is provided with around massif on the hillside at the described ardealite side slope place at top.
Nearly bottom, the hillside gradient are delayed the position in 2.5: 1 in the slag field, described ardealite side slope below in bottommost is that the slope is pasted in cubic meter compacting backfill to bottom, slag field, the outer slope that the slope is pasted in described cubic metre of earth and stone compacting backfill is the compacting clay layer, external surface at described compacting clay layer is equipped with thick geotextiles, and described antiseepage film covers the external surface of described thick geotextiles;
Dig the catchwater that is provided with around massif on the hillside at the described ardealite side slope place at top; The bottom of described ardealite side slope that end face, the bottommost on slope are pasted in described cubic metre of earth and stone compacting backfill is provided with in the collection ardealite hole that geotextiles parcel gravel forms residual leading of acid fresh water (FW) and oozes body.
The utility model utilizes the higher characteristics of ardealite intensity, adopt the ardealite slag to paste the slope in the steep part of ardealite slag field grade of side slope, paste the outer slope upper berth of sloping body at smooth ardealite and establish antiseepage film, promptly paste sloping body as bed course with ardealite, for the laying of HDPE film provides reliable bed course, can prevent that the HDEP film from destroying because of dragging under the ardealite sedimentation of storing up.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structure chart that ardealite slag of the present utility model field side slope is pasted shop, slope film.
Fig. 2 is the partial enlarged drawing of A portion among Fig. 1.
The specific embodiment
Be that sloping structure is pasted in ardealite slag of the present utility model field as shown in Figure 1, on the massif 10 that the utility model relates to around ardealite slag field 100,11 slopes are than being glued with the ardealite side slope 20 that the ardealite slag is built in 2.5: 1 zone, hillside 11 external surfaces suddenly, as the antiseepage film bed course on the hillside; That the outer slope 21 of ardealite side slope 20 is compacted is smooth, external surface is laid antiseepage film 30---preferred density polyethylene film with high (HDPE film).
11 surface irregularity parts can be repaiied the slope on the hillside, and as shown in FIG., former hillside face 111 is represented by dotted lines, and the hillside face 112 behind the slope repaiied is for shown in the solid line.The gradient of the outer slope 21 of described ardealite side slope 20 delay in or equal 1.75: 1 slope ratio, delay 11 external surfaces of the hillside than 1.75: 1 in the gradient in the slope, the gradient of the outer slope 21 of ardealite side slope 20 is consistent with the gradient on described hillside 11; And in the gradient 11 external surfaces of the hillside than 1.75: 1 in the slope suddenly, ardealite side slope 20 is taked up-narrow and down-wide form, make the outer slope 21 of described ardealite side slope 20 delay in or equal 1.75: 1.Build it during high design height when the ardealite side slope, the width of ardealite side slope 20 still more than or equal to the minimum operation of rolling apparatus width, just can work like this by rolling apparatus.This ardealite side slope 20 by water content be optimum water content-3% to+2%, density is that the ardealite slag more than 95% of maximum dry density builds up.Ardealite pastes sloping construction and can be divided into multistagely according to the speed that rises in ardealite slag field, one is divided into the level Four ardealite and pastes the slope from top to bottom shown in the figure, and the height of each grade ardealite side slope is 7.5 meters, and the outer slope of side slopes at different levels is smooth, gradient unanimity.
In nearly bottom, slag field, build a platform 50 with native stone earlier, the outer slope gradient of platform 200 is 2.5: 1.The width of platform satisfies the minimum widith that ardealite pastes sloping construction requirement.Adopt the thick compacting clay layer 60 of 60cm as bed course on the platform outer slope, be equipped with thick geotextiles 80, lay the HDPE antiseepage film then at the external surface of described compacting clay layer 60.The top anchor of antiseepage film is in the outside 301 of native stone platform.The antiseepage film of this antiseepage film and slag field bottom is common form accumulate ardealite initially hold the slag district, the ardealite material of building the ardealite side slope at first is taken from this and initially holds the slag district.Also adopt compacting clay layer 60 as the antiseepage film bed course in slag field bottom, be equipped with thick geotextiles 80 at the external surface of described compacting clay layer 60, described antiseepage film 30 covers the external surface of described thick geotextiles 80.The end face of the platform of building at the compacted soil cubic meter of stone 50, the bottom that described ardealite pastes the slope are provided with leading that geotextiles parcel gravel forms and ooze body 70, are used for collecting acid fresh water (FW) residual in the ardealite hole and concentrate and handle.Dig the catchwater 40 that is provided with around massif and paste on the hillside 11 at the place, top of design altitude on slope, be used for holding back the rainwater on the hillside that is higher than catchwater at ardealite.Unpolluted rainwater is directly discharged territory, slag place, to realize the dirty shunting of rain.
Paste the top on slope and adjacent with it hillside at ardealite and cut table top that domatic becomes all with the lower opaque mud stone covering of the water permeability of 60cm, preventing that rainwater from entering ardealite and pasting sloping body, and formation is around the traffic aisle 309 of slag field.
Ardealite slag of the present utility model field side slope is pasted the method that shop, slope membrane structure adopts: on the hillside 11 suddenly in the slope zone than 2.5: 1 at first hillside surface irregularity part is repaiied the slope, the hillside external surface is smooth to be gradient unanimity.Carry out step 1～step 5 then:
Step 1. take sedimentary phosphor gypsum 101 wet slags from the ardealite deposition region of holding in the slag district, on the deposition beach face, build ardealite external wall and inland dike near the hillside.But between inland dike and external wall, form the annular ditch that phosphorus supply gypsum tailings slurry flows.From annular ditch, take the ardealite slag, be positioned on ardealite external wall or the inland dike, make it air-dry to its water content be optimum water content-3% to+2% between.
Step 2. the ardealite slag that step 1 is obtained is transported on the side slope end face adjacent with the slag field, stack on backer slope 11, shakeouing to 30 to 45cm one deck with bulldozer, successively roll with the vibrations rolling machine then, is more than 95% of maximum dry density until the dry density of ardealite.When ardealite subsides slope highly reaches 7.5 meters, stop to continue to increase ardealite and paste the slope; The outer slope 21 of gained ardealite side slope 20 delay in or equal 1.75: 1, the width of described ardealite side slope 20 is more than or equal to the minimum operation of rolling apparatus width.
When the gradient on hillside 11 was delayed in 1.75: 1, outer slope 21 gradients and hillside 11 gradients that described ardealite pastes slope 20 were consistent; When the gradient on hillside 11 during suddenly in 1.75: 1, described ardealite pastes slope 20 and adopts up-narrow and down-wide form, the outer slope 21 that makes ardealite paste slope 20 still delay in or equal 1.75: 1, to satisfy the requirement that ardealite pastes slope stability; Paste the slope the highest design altitude the time when arriving ardealite, the width that ardealite pastes sloping end face still need satisfy the requirement of the minimum operation of rolling apparatus width.
Step 3. the smooth ardealite of compacting pastes the outer slope 21 on slope, establishes antiseepage film 30 on the outer slope upper berth then, to form the new slag district of holding.
Step 4. toward holding input ardealite slag slurry in the slag space.
Step 5. when the ardealite top of the slag rises to top near the antiseepage film of step 3 shop face, repeating step one～step 4 again; Ardealite pastes slope 20 up liftings step by step, until antiseepage film 30 is laid to the highest design altitude.
Claims (6)
1. an ardealite slag field side slope is spread membrane structure, it is characterized in that, at the massif (10) of ardealite slag field (100) suddenly in the slope hillside (11) external surface than 2.5: 1 be glued with water content be optimum water content-3% to+2% between, density is the ardealite side slope (20) that the ardealite slag more than 95% of maximum dry density builds up, the outer slope (21) that described ardealite pastes the slope delay in or equal the slope than 1.75: 1, and its width is more than or equal to the minimum operation of rolling apparatus width; Described ardealite side slope outer slope (21) is compacted and smooth, external surface is equipped with antiseepage film (30).
2. side slope shop, ardealite slag according to claim 1 field membrane structure, it is characterized in that the gradient that the gradient is delayed the outer slope (21) of the described ardealite side slope (20) of described hillside (11) external surface than 1.75: 1 in the slope is consistent with the gradient of described hillside (11); The gradient suddenly in the slope the described ardealite side slope (20) of described hillside (11) external surface than 1.75: 1 up-narrow and down-wide, make the outer slope (21) of described ardealite side slope (20) delay in or equal the slope than 1.75: 1.
3. side slope shop, ardealite slag according to claim 1 field membrane structure is characterized in that, described ardealite side slope (20) is that stacked up and down multistage ardealite pastes the slope, and the height that each grade ardealite pastes the slope is 7.5m.
4. ardealite slag according to claim 1 field side slope shop membrane structure is characterized in that, digs the catchwater (40) that is provided with around massif on the hillside (11) that the described ardealite side slope (20) at top is located.
5. side slope shop, ardealite slag according to claim 1 field membrane structure, it is characterized in that, nearly bottom, the hillside gradient are delayed the position in 2.5: 1 in the slag field, described ardealite side slope below in bottommost is that slope (50) is pasted in cubic meter compacting backfill to bottom, slag field, the outer slope that the slope is pasted in described cubic metre of earth and stone compacting backfill is compacting clay layer (60), external surface at described compacting clay layer (60) is equipped with thick geotextiles (80), and described antiseepage film (30) covers the external surface of described thick geotextiles (80);
6. ardealite slag according to claim 5 field side slope shop membrane structure is characterized in that, digs the catchwater (40) that is provided with around massif (10) on the hillside (11) that the described ardealite side slope (20) at top is located; The bottom of described ardealite side slope that end face, the bottommost on slope (50) are pasted in described cubic metre of earth and stone compacting backfill is provided with in the collection ardealite hole that geotextiles parcel gravel forms residual leading of acid fresh water (FW) and oozes body (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200343963U CN201924381U (en) | 2011-02-01 | 2011-02-01 | Side slope film paving structure for ardealite slag field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200343963U CN201924381U (en) | 2011-02-01 | 2011-02-01 | Side slope film paving structure for ardealite slag field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201924381U true CN201924381U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200343963U Expired - Lifetime CN201924381U (en) | 2011-02-01 | 2011-02-01 | Side slope film paving structure for ardealite slag field |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182194A (en) * | 2011-02-01 | 2011-09-14 | 深圳市胜义环保有限公司 | Method and structure for embankment slope film-laying of phosphogypsum slag yard |
| CN103821156A (en) * | 2014-03-07 | 2014-05-28 | 深圳市万信达生态环境股份有限公司 | Ecological protection structure and method suitable for ardealite storage yard |
| CN109024701A (en) * | 2018-07-18 | 2018-12-18 | 瓮福达州化工有限责任公司 | A kind of novel ardealite library slope seepage control method |
| CN113944150A (en) * | 2021-10-20 | 2022-01-18 | 生态环境部南京环境科学研究所 | Method for repairing abandoned mine by using titanium gypsum as impervious lining |
-
2011
- 2011-02-01 CN CN2011200343963U patent/CN201924381U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182194A (en) * | 2011-02-01 | 2011-09-14 | 深圳市胜义环保有限公司 | Method and structure for embankment slope film-laying of phosphogypsum slag yard |
| CN102182194B (en) * | 2011-02-01 | 2013-01-09 | 深圳市胜义环保有限公司 | Method and structure for embankment slope film-laying of phosphogypsum slag yard |
| CN103821156A (en) * | 2014-03-07 | 2014-05-28 | 深圳市万信达生态环境股份有限公司 | Ecological protection structure and method suitable for ardealite storage yard |
| CN103821156B (en) * | 2014-03-07 | 2015-11-25 | 深圳市万信达生态环境股份有限公司 | A kind of ecological protection method being applicable to ardealite storage yard |
| CN109024701A (en) * | 2018-07-18 | 2018-12-18 | 瓮福达州化工有限责任公司 | A kind of novel ardealite library slope seepage control method |
| CN113944150A (en) * | 2021-10-20 | 2022-01-18 | 生态环境部南京环境科学研究所 | Method for repairing abandoned mine by using titanium gypsum as impervious lining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110810 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |