CN103924604B - A kind of method and system being carried out by Soft Roll slip casting building a dam - Google Patents
A kind of method and system being carried out by Soft Roll slip casting building a dam Download PDFInfo
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- CN103924604B CN103924604B CN201410187483.0A CN201410187483A CN103924604B CN 103924604 B CN103924604 B CN 103924604B CN 201410187483 A CN201410187483 A CN 201410187483A CN 103924604 B CN103924604 B CN 103924604B
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- slip casting
- soft roll
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Abstract
A kind of method carrying out building a dam by Soft Roll slip casting, it is characterised in that first measure according to drawing and release control line, delimit the ground and/or side slope scope built a dam；Finishing ground and/or side slope, clear up smooth, clears up on-the-spot foreign material, to ensure that slip casting accommodates the flatness of Soft Roll；Soft Roll is accommodated according to true form and dimensional requirement site layout project and making slip casting, this slip casting accommodates the upper side of Soft Roll and is provided with at least one circular or oval slip casting entrance, accommodate Soft Roll with slip casting successively to carry out banking up building a dam for unit, the slip casting of every layer accommodates after Soft Roll filling completes, colligation or block each slip casting entrance；Accommodating Soft Roll along the slip casting that the dike heart is horizontal is an overall bag.The present invention is applicable to utilize the most fine grain mine tailings to fill slip casting and accommodates Soft Roll and then heap note tailing dam, can improve build a dam efficiency and quality.
Description
Technical field
The present invention relates to a kind of method and system being carried out by Soft Roll slip casting and building a dam, use slip casting to accommodate Soft Roll
Heap builds blocking dam, is particularly well-suited to utilize mine tailings to fill slip casting and accommodates Soft Roll and then heap note tailing dam.
Term " slip casting receiving Soft Roll " refers to the pocket of a kind of softness, and it can be on-the-spot according to the actual requirement of engineering
Being fabricated to variously-shaped, size, area, thickness, flexible during perfusion, perfusion can ensure thickness, perfusion
The most neighbouring slip casting accommodates Soft Roll always can be closely connected, and the most adjacent surface is the most smooth.
Term " slip casting entrance " refers to that slip casting accommodates the perfusing hole of Soft Roll, is usually located at slip casting and accommodates the upper of Soft Roll
Side, it is possible to staying side, or can stay bottom surface as required, general every 16-20m2 sets a slip casting and enters
Mouthful；Each slip casting accommodates the slip casting entrance of Soft Roll and can the most uniformly or non-uniformly be distributed, it is possible to
To be arranged to plum blossom-shaped, or it is distributed the most otherwise.
Slip casting entrance is generally circular, is circular because smoking sandpipe.Each slip casting entrance is typically put as quincunx,
It is the longest very big that slip casting accommodates Soft Roll, and the sand of inflow can be piled up at some places, accumulation uneven, as
Fruit will avoid the biggest uneven, that produce pressure because of slip casting with quincunx.It addition, in case of emergency
Be also convenient for by quincunx layout, it is not necessary to accurate slip casting entrance position is set.
Background technology
Along with improvement and the raising of recovery rate in ore-dressing of technique of preparing, produced mine tailing granularity is increasingly thinner,
It is no longer available for direct heap dam or heap builds high dam.
It addition, at present in the damming works fought flood and relieve victims, be all first nearby to fill undersized sandbag, by
People resists strenuously to a stacking of building a dam.Problem is to need that manpower is many, labor condition is poor, engineering efficiency is low, Er Qierong
Easily leave over the gap that leaks.
Summary of the invention
It is an object of the invention to provide a kind of method and system being carried out by Soft Roll slip casting and building a dam, it is applicable to
Utilize the most fine grain mine tailings to fill slip casting and accommodate Soft Roll and then heap note tailing dam.
Another object of the present invention is to provide a kind of method and system being carried out by Soft Roll slip casting and building a dam,
High efficiency, in high quality heap note flood bank when it is applicable to fight flood and relieve victims.
To this end, according to the first aspect of the invention, it is provided that a kind of method being carried out by Soft Roll slip casting building a dam,
It is characterized in that, first measure according to drawing and release control line, delimit the ground and/or side slope scope built a dam；Repair
Whole ground and/or side slope, clear up smooth, clears up on-the-spot foreign material, to ensure that slip casting accommodates Soft Roll
Flatness；Accommodating Soft Roll according to true form and dimensional requirement site layout project and making slip casting, this slip casting accommodates
Soft Roll is provided with the slip casting entrance that at least one is circular or oval, accommodates Soft Roll with slip casting and successively carries out for unit
Bank up and build a dam.
Preferably, it is elongated hose bag that slip casting accommodates Soft Roll, and its upper side is dispersed with a series of slip casting and enters
Mouthful, the slip casting of every layer accommodates after Soft Roll filling completes, colligation or block each slip casting entrance；Horizontal along the dike heart
It is an overall bag that slip casting accommodates Soft Roll；Each slip casting accommodates Soft Roll long 10-45 rice, wide 2-16 rice, every 16-20m2
If a slip casting entrance；Or, slip casting accommodates the Soft Roll aging resistance anti-aging woven cloth of more than 2 years and sews.
Preferably, slip casting entrance is circular hole or vertically sews the circle on the upper side wall that slip casting accommodates Soft Roll
Cylinder.
Preferably, the end of slip casting receiving Soft Roll is closed by sewn seams upper end plug；By seam
Line processed is directly sewed up；Or directly fold in end, it is pressed in slip casting and accommodates under the bottom surface of Soft Roll；Suture uses
35 three strands of cotton synthetic fibre lines, seam width is pressed 7-9cm (preferably 8cm) and is controlled, and during sewing, per pass seam is no less than twice (first
Seam together, sews together or twice after folding again), stitch spacing≤5mm.
Preferably, laying one layer of bagged sand on the dam slope of fluid further, cladding thickness reaches 50-70cm
(preferably 60cm)；Lay further on the dam slope of fluid one layer of cladding thickness be 30-50cm (preferably
Clay 50cm), clay is planted turf again.
According to the second aspect of the invention, it is provided that a kind of system being carried out by Soft Roll slip casting building a dam, it is special
Levying and be, accommodate Soft Roll including the slip casting according to the present invention, this slip casting accommodates the upper side of Soft Roll and is provided with at least
One circle or the slip casting entrance of ellipse, accommodating Soft Roll along the slip casting that the dike heart is horizontal can be an overall bag.
Preferably, it is elongated hose bag that slip casting accommodates Soft Roll, long 10-45 rice, wide 2-16 rice, every 16-20m2
If a slip casting entrance.
Preferably, slip casting entrance is circular hole or is perpendicular to the soft cylinder that slip casting accommodates the upper side wall of Soft Roll；Or be
Slip casting accommodate Soft Roll sidewall on cut off " ten " font, " one " font, " greatly " font opening.
According to the third aspect of the invention we, it is provided that a kind of use being carried out the method built a dam by Soft Roll slip casting
On the way, it is characterised in that being used for fighting flood and relieve victims and construct flood bank, punching is dug pulping process and gathered materials on the spot, and uses
Giant interruption-forming quick fire current, form mortar, set one trash rack at the middle part of sediment transport slurry canal, this sand
Slurry aspirated by Sand pump, and by dredging tube be delivered to according to the present invention slip casting receiving Soft Roll each slip casting enter
Mouthful, so that slip casting receiving Soft Roll is carried out filling.
According to the present invention, the most fine grain available mine tailings is filled slip casting and is accommodated Soft Roll and then heap note mine tailing
Dam.According to the present invention, build a dam efficiency and the quality of flood bank of fighting flood and relieve victims can be improved.
Accompanying drawing explanation
Fig. 1 is the structural representation that the slip casting according to the present invention accommodates Soft Roll, which illustrates slip casting entrance
Four different embodiments, the simpler embodiment being shown without is circular hole.
Fig. 2 A-2D is the schematic diagram that the slip casting according to the present invention accommodates the end construction difference embodiment of Soft Roll.
Fig. 3 A-3C is the structural representation that the slip casting according to the present invention accommodates the different embodiments of Soft Roll.
Fig. 4 is that the present invention uses slip casting to accommodate Soft Roll to build the schematic cross-sectional view of blocking dam embodiment in storehouse.
Fig. 5 is that the present invention uses slip casting to accommodate Soft Roll to build the schematic longitudinal section of blocking dam embodiment in storehouse.
Detailed description of the invention
Embodiment as shown in Figure 1, accommodates Soft Roll 10 in elongated soft bag cylinder according to the slip casting of the present invention,
Its upper side is dispersed with a series of slip casting entrance 11,12,13,14 etc..
An embodiment according to slip casting entrance, slip casting entrance 11 is for circular hole or vertically sews in slip casting appearance
Receive the cylinder on the upper side wall of Soft Roll 10.According to the another embodiment of slip casting entrance, slip casting entrance 12
For accommodating the opening cutting off " ten " font on the sidewall of Soft Roll 10 in slip casting.Another according to slip casting entrance
An outer embodiment, slip casting entrance 13 is to cut off " one " font on the sidewall that slip casting accommodates Soft Roll 10
Opening.According to the another embodiment of slip casting entrance, slip casting entrance 14 is to accommodate Soft Roll 10 in slip casting
Sidewall on cut off the opening of " greatly " font.
Slip casting accommodates the end of Soft Roll 10 and can close in many ways.In the embodiment shown in Fig. 2 A, note
Slurry accommodates the end of Soft Roll 10 and sews on end part plug 15 by sewing line 16.Shown in Fig. 2 B and Fig. 2 C
Embodiment in, slip casting is accommodated the end 17 of Soft Roll 10 and is directly sewed up by sewing line 18.In Fig. 2 D institute
In the embodiment shown, slip casting accommodates Soft Roll 10 and directly folds at end 19, is pressed in slip casting and accommodates Soft Roll 10
Bottom surface under.
Slip casting accommodates Soft Roll 10 can be fabricated to any shape.In embodiment as shown in Figure 3A, slip casting
Accommodate Soft Roll 10 L-shaped.In embodiment as shown in Figure 3 B, slip casting accommodates Soft Roll 10 in convex shape.
In embodiment as shown in Figure 3 C, slip casting accommodates the Soft Roll 10 shape in bending.Such as Fig. 3 A-3C
In shown each embodiment, slip casting accommodates and is dispersed with the slip casting entrance 21 of circle or ellipse on Soft Roll 10
Slip casting entrance 22.
Fig. 4-5 shows present invention embodiment of blocking dam in storehouse.For convenience of description, Fig. 4 and Fig. 5
Embodiment of building a dam show that four layers of slip casting accommodate Soft Rolls, Fig. 5 shows that each slip casting accommodates Soft Roll can be through
The whole longitudinal length on dam, naturally it is also possible to be divided into 2 sections or multistage, be as the criterion with easy construction；Fig. 4 shows
Each slip casting accommodates Soft Roll can be with the whole transverse width on through dam, naturally it is also possible to is divided into 2 bags or wraps more,
It is as the criterion with easy construction.Embody slip casting in figures 4 and 5 and accommodate multiple embodiments of Soft Roll end-enclosed,
Such as, end part plug 15 (see Fig. 2 A) can be sewed on by sewing line 16 in the end of top layer slip casting receiving Soft Roll 10.
Second layer slip casting accommodates Soft Roll 10 and directly can fold at end 19, is pressed in slip casting and accommodates the end of Soft Roll 10
(see Fig. 2 D) under face.Third layer slip casting is accommodated the end 17 of Soft Roll 10 and directly can be stitched by sewing line 18
Close (see Fig. 2 B-2C).
Fig. 4 is it is also shown that on the dam slope of fluid, can lay one layer of little bagged sand and (such as cover
60cm thickness)；On the dam slope of fluid, one layer of clay (such as covering 50cm thickness) can be laid,
Plant turf on clay again, to cover the space between adjacent slip casting receiving Soft Roll, strengthen the reliability built a dam.
According to the present invention, first delimiting side slope scope of building a dam before note dam, the reliability of blocking dam is improved.
Slip casting according to the present invention accommodates the sewing means of Soft Roll, and the fastness of bag is guaranteed.
The present invention do not only disclose fill serosity liquid-solid ratio, and disclose punching dig pulping concrete measure,
The requirement of concentration of hydraulic mixture, the requirement of stowing pressure, also disclose the process to the rubbish in tailings and weeds etc.
Measure.According to the present invention, need to operate as follows:
1) finishing side slope, to ensure that slip casting accommodates the flatness of Soft Roll；
2) the slip casting receiving Soft Roll of mud is filled in making: in one embodiment, can be made into the mud filling tube bag of tubular,
Its diameter is that after the predetermined altitude after the perfusion of this bag adds perfusion, circle becomes flat and moves back gear size, at the horizontal stroke of pipe bag
The circumferential direction of section must monoblock make, and the longitudinal size of every bag is beneficial to make is advisable with easy construction, and one
As at long 10-45 rice, wide 2-16 rice, slip casting accommodates each slip casting entrance of Soft Roll and can be arranged to quincunx,
Often can set a slip casting entrance by 16-20m2.Slip casting accommodates Soft Roll and can sew by anti-aging woven cloth, preferentially
Select the sewing of the aging resistance anti-aging woven cloth of more than 2 years.
3) slip casting accommodates the sewing of Soft Roll: in one embodiment, and suture uses 35 three strands of cotton synthetic fibre lines, seam
Width presses 8cm control, and during sewing, per pass stitches and (first stitches one no less than twice, sew one or two after folding again
Road), stitch spacing≤5mm is firm to guarantee the seam of bag.
4) Manual is in place, and it is one overall that the horizontal slip casting of the dike heart accommodates Soft Roll, must not divide.Bag seam should
It is perpendicular to the axis of dam, along long side direction, is packed in bag rubble ballast every about 1m in its both sides, prevents bag
Body shifts, and then start charges.Filling silt particle particle diameter is less than 30 ‰ less than 0.005m clay content, particle diameter
Content more than 0.05mm is more than 40 ‰.During sand filling bag, first carry out filling along long side direction, it is to avoid
Stress is concentrated and is damaged bag, and often adjusts mud extraction mouth of pipe direction during filling, prevents bag in filling
During unbalance stress and shift deformation, until bag is fixing be no longer subjected to displacement time, refill, until reaching
To preferable degree of filling.In stowing operation, trample the most back and forth at upper face of bag body, when sand pocket is filled to necessarily
Plumpness after, beat sand pocket with waddy, to accelerate bag discharging consolidation speed, and make sand granule again arrange
Row tend to tight, treat that whole sand pocket reaches to shield the slurry stage, suitably reduce filling machine or stop filling, in case
Cloth bag bursts, and leaves and necessarily consolidates dewatering time.With not allowing to leave hole and straight joint between layer bag, up and down
Layer body answers the fissure of displacement.After every layer of mud pocket filling completes, filling and injecting slurry entrance is carried out colligation or closure.
By above-mentioned construction method, gather materials on the spot, can make rational use of resources, both met construction requirement, again
Save labour force, improve productivity ratio, and be obtained for guarantee at the aspect such as construction speed, quality.
By using slip casting to accommodate Soft Roll, save fund than traditional construction technique.
According to the present invention, punching is dug pulping process and is gathered materials on the spot, and digs, fills, transports, unloads, fills out, the multiple tracks work such as rammer
Sequence can one continuous line complete simultaneously, and engineering cost is low, good engineering quality, barrier not clear to underground utilities, cable etc.
Hinder thing not produce destruction, ditch, river, dike, dam, road, village, street pipe sealing can be passed through remote
The distance conveying earthwork, noiselessness of constructing, Shu Ni district is the most pollution-free, and construction is protected from weather influences, rainy day
Also can construct in the same old way, can operation of putting into several classes in 24 hours round the clock, can ensure that the duration.
According to the present invention, lay slip casting accommodates Soft Roll, the key step that charges construction technology includes: measures and puts
Line, accurately releases control line according to drawing；Clear up smooth, on-the-spot foreign material are cleared up, system fortune slip casting
Accommodating Soft Roll, layering is laid slip casting and is accommodated Soft Roll, and pulping is dug in punching, and layering charges, and is layered discharging consolidation.
Monolayer slip casting accommodate Soft Roll and local combined casting accommodate Soft Roll with anti-aging woven cloth sew, exposed
Outside 2 years the most aging；Slip casting accommodates the Soft Roll establishment coefficient of friction of cloth and other indexs have to comply with country and
Industry standard, prohibits the use of the machining object reclaiming waste product；Slip casting accommodates the important technological parameters of soft packaging woven cloth
(with reference to GB/T17641-1998) is such as following table:
According to the present invention, pulping process simulation nature current scour principle is dug in punching, by machinery waterpower punching soil,
Simultaneously one continuous line complete to dig, fill, transport, unload, fill out, the multiple working procedure such as rammer.I.e. water flows through the giant degree of lip-rounding
Become quick fire current to cut, pulverize the soil body, be allowed to liquefy, decompose, avalanche, stirring, to form mortar.
Aspirated by Sand pump again and deliver to appointed place by dredging tube and bank up.
According to the defeated mud canal of the present invention, dig face from punching and rush a sediment transport slurry to the midge pool along natural ground sweeping
Canal, allows punching dig face and obtains mortar along mortar canal inflow suction mire.
According to the trash rack of the present invention, set one trash rack, to intercept in mortar at the middle part of sediment transport slurry canal
Rubbish, root of phragmites communis, weeds etc., and at trash rack, set special messenger pick up above-mentioned rubbish, weeds, root of phragmites communis etc.,
Packed and deliver to after bank neatly stacks, concentrate the embedding field being transported to specify.
According to the present invention, mortar uses Sand pump suction, and is transported to appointed place stacking through pipeline, if row
In time exceeding specified array pitch, then relay pump classification can be used to turn row.
According to the present invention, defeated row is gradable for mortar, if general about 500m can direct defeated row's array pitch exceed
500m, the most often more than about 500m need to set up one-level (fed distance farther out time can use big pump, big pipeline
Conveying).Transfer shaped mortar pool is constructed in the place of field condition license, carries out open type transfer；Field condition does not permits
Permitted in the localities, subordinate's relay pump sediment transport pipe initial and end is connected direct closed transfer.
When slip casting accommodates Soft Roll filling, concentration of hydraulic mixture controls at 30-45 ‰, and stowing pressure controls at 0.2MPa
Left and right, when being fills up to shield the slurry stage, reduces filling machine, controls stowing pressure, in case cloth bag ruptures.
Substantially flat for ensureing the surface of every layer of bag, in stowing operation, should often adjust the conveying direction of sludge out pipe.
The filling THICKNESS CONTROL of every layer of bag is at about 50cm.As once do not reached preferable filling thickness, treat sand
After bag consolidation a little, carry out secondary or repeated filling, until preferably filling thickness.Tailings is because of sand source proportion
Can not be homogeneous, the dry density after its consolidation of tailings and closely knit index, general feelings in slip casting receiving Soft Roll
It is about 1.5 times under natural situation under condition.The service life of Soft Roll cloth, dam body shape is accommodated for extending slip casting
Cheng Houying carries out slope protection immediately.
Claims (7)
1. the method being carried out by Soft Roll slip casting building a dam, for blocking dam in storehouse, it is characterised in that first basis
Design of dam body drawing delimit the ground built a dam and/or side slope scope on the spot；Scene in the range of ground and/or side slope is entered
Row is smooth, cleaning foreign material；Arranging and make slip casting according to on-the-spot true form and size and accommodate Soft Roll, lay slip casting is held
Receiving Soft Roll, the key step that charges construction technology includes: surveying setting-out, accurately release control line, cleaning according to drawing
Smooth, the foreign material at scene are cleared up, make slip casting receiving Soft Roll, layering laying slip casting receiving Soft Roll, rushed to dig and make
Slurry, layering charge, are layered discharging consolidation；Wherein punching is dug pulping process and is rushed soil by machinery waterpower, i.e. water flows through high pressure
Water gunpoint forms quick fire current and cuts, pulverizes the soil body, be allowed to liquefy, decompose, avalanche, stirring, to form mortar,
Aspirated by Sand pump again and deliver to appointed place by dredging tube and bank up；It is elongated hose bag that slip casting accommodates Soft Roll, often
Individual slip casting accommodates Soft Roll long 10-45 rice, and wide 2-16 rice, its upper side is dispersed with a series of slip casting entrance, every 16-20m2
If a slip casting entrance, slip casting entrance be cut off circular port, " ten " font, " one " font, " greatly " font opening or
Vertically sewing the cylinder on the upper side wall that slip casting accommodates Soft Roll, slip casting accommodates Soft Roll anti-aging woven cloth or nonwoven
Geotextiles sews；The slip casting of every layer accommodates after Soft Roll filling completes, colligation or block each slip casting entrance；Slip casting accommodates soft
The end of bag carry out closing by sewn seams upper end plug or end is passed through sewing line directly sew up or
The end that slip casting accommodates Soft Roll directly folds, and is pressed in slip casting and accommodates under the bottom surface of Soft Roll；In the face of the dam slope of fluid
Upper one layer of bagged sand of laying further, cladding thickness reaches 50-70cm；One is being laid further on the dam slope of fluid
Layer cladding thickness is the clay of 30-50cm, and clay is planted turf again；Suture uses 35 three strands of cotton synthetic fibre lines, seam
The wide 7-9cm that presses controls, and during sewing, per pass seam is no less than twice, stitch spacing≤5mm；Accommodating Soft Roll with slip casting is
Unit successively carries out banking up building a dam, and arranges at least one slip casting receiving Soft Roll, the note that the dike heart is horizontal along longitudinal every layer of the dike heart
It is an entirety that slurry accommodates Soft Roll, must not divide, and bag seam is perpendicular to the axis of dam, along long side direction, in its both sides every 1m
Left and right is packed in bag stone ballast, prevents bag from shift, and then start charges, and filling silt particle particle diameter is less than 0.005m, cosmid
Content is less than 30 ‰, and the particle diameter content more than 0.05mm is more than 40 ‰, during sand filling bag, first along long side direction
Carry out filling, it is to avoid stress is concentrated and damaged bag.
2. the method for claim 1, it is characterised in that laying a layer further on the dam slope of fluid
Bagged sand, cladding thickness reaches 60cm.
3. method as claimed in claim 2, it is characterised in that laying a layer further on the dam slope of fluid
Cladding thickness is the clay of 50cm, and clay is planted turf again.
4. the method for claim 1, it is characterised in that suture uses 35 three strands of cotton synthetic fibre lines, seam width to press
8cm controls.
5. method as claimed in claim 4, it is characterised in that during sewing, per pass seam, no less than twice, first stitches one
Road, sews together or twice, stitch spacing≤5mm after folding again.
6. the system carrying out building a dam by Soft Roll slip casting, it is characterised in that include as arbitrary in claim 1-5
Slip casting described in Xiang accommodates Soft Roll, and this slip casting accommodates Soft Roll and is provided with the slip casting entrance of at least one circle.
7. being carried out a purposes for the method built a dam by Soft Roll slip casting, be used for fighting flood and relieve victims and construct flood bank, it is special
Levying and be, punching is dug pulping process and is gathered materials on the spot, and uses giant interruption-forming quick fire current, forms mortar, at sediment transport
The middle part of slurry canal sets one trash rack, and this mortar is aspirated by Sand pump, and is delivered to slip casting receiving Soft Roll by dredging tube
Each slip casting entrance, with to as according to any one of claim 1-5 slip casting accommodate Soft Roll carry out filling；With slip casting
Accommodating Soft Roll is that unit successively carries out banking up building a dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187483.0A CN103924604B (en) | 2014-05-06 | 2014-05-06 | A kind of method and system being carried out by Soft Roll slip casting building a dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187483.0A CN103924604B (en) | 2014-05-06 | 2014-05-06 | A kind of method and system being carried out by Soft Roll slip casting building a dam |
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| Publication Number | Publication Date |
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| CN103924604A CN103924604A (en) | 2014-07-16 |
| CN103924604B true CN103924604B (en) | 2016-09-14 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069371C (en) * | 1997-08-25 | 2001-08-08 | 江苏河海疏浚工程集团公司 | Construction method for confferdam and dyke-dam |
| CN1096532C (en) * | 2000-06-19 | 2002-12-18 | 吉林省水利实业公司 | Simple modular bag and its making method |
| CN101363217A (en) * | 2007-08-09 | 2009-02-11 | 沈阳铝镁设计研究院 | Dam construction method of red mud permeable dam by sintering process |
| CN202000357U (en) * | 2011-03-24 | 2011-10-05 | 中国瑞林工程技术有限公司 | Novel tailing filling fabricform damming device |
| CN203270515U (en) * | 2013-05-25 | 2013-11-06 | 江苏昌泰建设工程有限公司 | Full tailing hydraulic reclamation split film yarn woven geofabriform piled dam |
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