CN102174815B - Method for constructing ash dam in dry ash yard - Google Patents
Method for constructing ash dam in dry ash yard Download PDFInfo
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- CN102174815B CN102174815B CN2011100689241A CN201110068924A CN102174815B CN 102174815 B CN102174815 B CN 102174815B CN 2011100689241 A CN2011100689241 A CN 2011100689241A CN 201110068924 A CN201110068924 A CN 201110068924A CN 102174815 B CN102174815 B CN 102174815B
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Abstract
The invention discloses a method for constructing an ash dam in a dry ash yard, and the method is characterized in that ash-transporting roads are constructed on the ash dam, ashes are transported to the top of the ash dam by virtue of the ash-transporting roads, and the ashes are drained; and as the height of the ash dam rises, the ash-transporting roads are extended synchronously, so that vehicles can run to the top of the ash dam by virtue of the ash-transporting roads. The method is simple and convenient and is easy to practice by constructing the ash-transporting roads on the ash dam directly. Compared with a method for constructing roads on a hill, the method provided by the invention is utilized to reduce the cost remarkably; simultaneously, because the construction of the ash-transporting roads on the ash dam and the construction of the ash dam are synchronous, the height of the ash dam corresponds to the length of the ash-transporting roads, thus the length of the ash-transporting roads can be utilized sufficiently; and the method provided by the invention is used for shortening the ash-transporting time. In addition, the method provided by the invention is beneficial to protecting environments around the ash yard.
Description
Technical field
The present invention relates to a kind of process for constructing of dam body, particularly relate to a kind of process for constructing of ash dyke.
Background technology
At present,, the branch of dry ash field and water ash field is arranged, the branch of ash field, Plain and grey field, mountain valley is arranged according to an ash on-site landform according to the difference of dedusting process as the ash of cinder of electric power plant yard.The build mode of the ash dyke of dry ash field, mountain valley generally is to build an initial dam at an ash head; With the base angle of initial dam as the heap ash; Repair one from the massif of an ash afterbody and lead to an ash inner fortune ash road, lime-ash is transported to an ash inner ash dyke builds the district, carry out layered rolling then and build ash dyke; After the dam crest height of ash dyke is higher than the dam crest height of initial dam; The fortune ash road of building on the massif through an above-mentioned ash afterbody again is transported to the dam crest of ash dyke with lime-ash, then lime-ash discharging in the lime-ash of dam crest below is built a dam the district is perhaps directly discharged on the dam crest of ash dyke, through the lime-ash layered rolling to being discharged; The dam crest height of ash dyke is raise gradually, reach the object height of an ash heap ash until the dam crest height of ash dyke.But when the grey road of fortune when an ash afterbody gets into grey field condition and does not possess; Just consider to get into, but when an ash head gets into, just need on the external massif of ash dyke, build and transport grey road from an ash head; When the heap ash was progressively increased, slag waggon can get into discharging lime-ash in the ash field through the grey road of fortune.The build mode of above-mentioned ash dyke is owing to need build the grey road of fortune on massif, engineering is complicated, and is great in constructing amount; Long construction period; And expense is higher, and on massif, repairs the roads and need consider the topography and geomorphology of massif, and the distance of the fortune of therefore building ash road is longer; Cause transporting the ash time longer, and to the ash around environmental disruption serious.
Summary of the invention
The technical problem that the present invention solves provides a kind of process for constructing of simple and convenient dry ash field ash dyke.
The technical solution adopted for the present invention to solve the technical problems is: dry ash field ash dyke process for constructing, comprise initial dam, further comprising the steps of:
A, from the dam crest of initial dam to lime-ash district's discharging lime-ash of building a dam, through the lime-ash layered rolling that is discharged is built the one-level ash dyke;
B, after the dam crest height of one-level ash dyke is higher than the dam crest height of initial dam, through on the one-level ash dyke, building the dam crest that the grey road of fortune is transported to lime-ash the one-level ash dyke;
C, the lime-ash of the dam crest discharging or directly on the dam crest of one-level ash dyke, discharge in the lime-ash of the dam crest of one-level ash dyke below is built a dam the district that is transported to the one-level ash dyke, through lime-ash layered rolling to being discharged, formation secondary ash dyke;
D, after the dam crest height of secondary ash dyke is higher than the dam crest height of one-level ash dyke, through on the secondary ash dyke, building the dam crest that the grey road of fortune is transported to lime-ash the secondary ash dyke;
E, the lime-ash of the dam crest discharging or directly on the dam crest of secondary ash dyke, discharge in the lime-ash of the dam crest of secondary ash dyke below is built a dam the district that is transported to the secondary ash dyke, through lime-ash layered rolling to being discharged, formation ash in class III slag dam;
F, after the dam crest height of ash in class III slag dam is higher than the dam crest height of secondary ash dyke, through on the ash in class III slag dam, building the dam crest that the grey road of fortune is transported to lime-ash the ash in class III slag dam;
G, analogize according to above-mentioned steps then, build ash dyke step by step, reach the object height of an ash heap ash until the dam crest height of the N level ash dyke of building;
The lime-ash of the layered rolling in the above-mentioned steps forms and rolls ash bed, and the coefficient of consolidation that rolls ash bed is more than or equal to 0.96.
Further be: the grey road of said fortune is built on the outer slope of ash dykes at different levels, and said outer slope is domatic towards initial dam on the ash dykes at different levels.
Further be: the zone to being positioned at the road outside on the said outer slope is protected, and means of defence is for lay nonwoven layer, grit stone bed course, dry stone wall armour layer rolling from the bottom to top successively on the ash bed.
Further be: the gradient of said outer slope is 1: 3 to 1: 3.5.
Further be: the grey road of said fortune is a broken line shape road, and said broken line shape road comprises horizontal segment road and the upward slope section road between adjacent two horizontal segment roads that is provided with at interval.
Further be: said broken line shape road is a layer structure, is followed successively by from bottom to the top and rolls ash bed, Telford base, clay-bound macadam surface layer.
Further be: the road both sides of said broken line shape road are provided with ash retaining wall.
Further be: in the ash retaining wall of said road both sides, be the descending ash retaining wall near the ash retaining wall of a side of the dam crest of initial dam, opposite side is the upward slope ash retaining wall; The end face of said upward slope ash retaining wall is higher than the road surface of broken line shape road, and the road surface of the end face of said descending ash retaining wall and broken line shape road is positioned at same plane.
Further be: said ash retaining wall set inside has the road drainage pipe.
Further be: the end face of said ash retaining wall is provided with the road pier.
The invention has the beneficial effects as follows: simple and easy to do through on ash dyke, directly building the grey road of fortune, compare with on massif, repairing the roads; Process for constructing cost of the present invention significantly reduces; Because ash road of the fortune on the ash dyke and ash dyke build are to carry out synchronously, and the height of ash dyke is one to one with the distance of the grey road of fortune, the distance of therefore transporting grey road can be fully utilized simultaneously; Compare with the fortune ash road of on massif, building; Can shorten the time that is used to transport ash, in addition, help protecting ash field environment on every side.
Description of drawings
Fig. 1 is that initial dam and ash dyke position concern sketch map;
Fig. 2 is a broken line shape road sketch map;
Fig. 3 is provided with the sketch map of ash retaining wall for the grey road of fortune both sides.
Be labeled as among the figure: the 1-initial dam, 3-dam crest, 4-are transported grey road, 5-outer slope, the 7-lime-ash district that builds a dam, 8-massif; The 9-ash retaining wall, 10-road drainage pipe, 11-road pier, 12-horizontal segment road, a 13-upward slope section road; 21-one-level ash dyke, 22-secondary ash dyke, 23-ash in class III slag dam, 24-level Four ash dyke, 25-N level ash dyke; 41-clay-bound macadam surface layer, the 42-Telford base, 43-rolls ash bed, 44-road surface, 51-dry stone wall armour layer; 52-grit stone bed course, 53-nonwoven layer, 61,62,63,64, the 65-dam crest, 91-upward slope ash retaining wall, 92-descending ash retaining wall.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is further specified.
In the prior art, need on the massif on Fig. 28, repair the roads, can cause the engineering complicacy of repairing the roads like this, great in constructing amount, long construction period, and expense is higher, and serious to environmental disruption.
To shown in Figure 3, dry ash of the present invention field ash dyke process for constructing may further comprise the steps like Fig. 1:
A, from the dam crest 3 of initial dam 1 to the lime-ash district's 7 discharging lime-ash of building a dam, through the lime-ash layered rolling that is discharged is built one-level ash dyke 21, wherein, through the highway that has built the dry ash field, the dam crest 3 of bulk cement truck drivable to initial dam 1;
B, after the dam crest height of one-level ash dyke 21 is higher than the dam crest height of initial dam 1, through on one-level ash dyke 21, building the dam crest 61 that the grey road 4 of fortune is transported to lime-ash one-level ash dyke 21;
C, the lime-ash of dam crest 61 discharging or directly on the dam crest 61 of one-level ash dyke 21, discharge in the lime-ash of dam crest 61 belows of one-level ash dyke 21 is built a dam district 7 that is transported to one-level ash dyke 21; Through lime-ash layered rolling, form secondary ash dyke 22 to being discharged;
D, after the dam crest height of secondary ash dyke 22 is higher than the dam crest height of one-level ash dyke 21, through on secondary ash dyke 22, building the dam crest 62 that the grey road 4 of fortune is transported to lime-ash secondary ash dyke 22;
E, the lime-ash of dam crest 62 discharging or directly on the dam crest 62 of secondary ash dyke 22, discharge in the lime-ash of dam crest 62 belows of secondary ash dyke 22 is built a dam district 7 that is transported to secondary ash dyke 22; Through lime-ash layered rolling, form ash in class III slag dam 23 to being discharged;
F, after the dam crest height of ash in class III slag dam 23 is higher than the dam crest height of secondary ash dyke 22, through on ash in class III slag dam 23, building the dam crest 63 that the grey road 4 of fortune is transported to lime-ash ash in class III slag dam 23;
G, analogize according to above-mentioned steps then, build ash dyke step by step, reach the object height of an ash heap ash until the dam crest height of the N level ash dyke of building 25;
The lime-ash of the layered rolling in the above-mentioned steps forms and rolls ash bed 43; The coefficient of consolidation that rolls ash bed 43 is more than or equal to 0.96; Above-mentioned coefficient of consolidation is directly related with the layered rolling lime-ash; The coefficient of consolidation that rolls ash bed 43 that will make formation behind the just above-mentioned layered rolling lime-ash is more than or equal to 0.96, and it is firm to guarantee like this at the fortune ash road that rolls build on the ash bed 43, can bear the safety traffic on this road of the bigger bulk cement truck of tonnage.
Analogize according to the method described above; Be transported to lime-ash discharging or directly discharging on the dam crest 63 of ash in class III slag dam 23 in the lime-ash of dam crest 63 belows of ash in class III slag dam 23 is built a dam district 7 of the dam crest 63 of ash in class III slag dam 23,, form level Four ash dyke 24 through lime-ash layered rolling to being discharged; According to the method described above lime-ash is transported to the dam crest 64 continuation build Pyatyi ash dykes of level Four ash dyke 24 then; By that analogy, build six grades of ash dykes successively, seven grades of ash dykes; Dam crest height until the N level ash dyke of building reaches an ash grey object height of heap, and then whole ash dyke is built and finished.
Above-mentioned fortune ash road can be built around the dam body of ash dykes at different levels; But in order to help shortening the distance of the grey road of fortune; And then help shortening the fortune ash time; The grey road of said fortune 4 is built on the outer slope 5 of ash dykes at different levels, and said outer slope 5 is domatic, as shown in Figure 1 towards initial dam 1 on the ash dykes at different levels.Just in time is the outer slope of ash dyke from the dam crest of initial dam at different levels to the domatic of correspondence the dam crest of ash dyke, and therefore repairing the roads from the outer slope of ash dykes at different levels helps saving the fortune ash time, and helps shortening the distance of transporting grey road, reduces the cost of repairing the roads.
Because what the grey road of the fortune outside was corresponding is to roll ash bed; In order to prevent erosion and the obstruction of lime-ash to road; The zone that is positioned at the road outside on need the outer slope 5 to said ash dykes at different levels is protected; Means of defence is for to lay nonwoven layer 53 rolling of outer slope 5 from the bottom to top successively on the ash bed 43, grit stone bed course 52, dry stone wall armour layer 51.Adopt said structure, can the ash bed that roll in the grey road of the fortune outside be fixed, and then can effectively prevent erosion and the obstruction of lime-ash road.
For the ease of on ash dykes at different levels, building the grey road of fortune, also stable for the dam body that makes ash dykes at different levels, the gradient of said outer slope 5 is 1: 3 to 1: 3.5.Be preferably 1: 3.5.
Because a bulk cement truck tonnage own is bigger; For the ease of vehicle stable going on the grey road of fortune; It is loosening also to cross ambassador's ash dyke for fear of the active force that in the process of moving dam body is applied owing to vehicle, and the grey road 4 of said fortune is a broken line shape road, and said broken line shape road comprises horizontal segment road 12 and the upward slope section road 13 between adjacent two horizontal segment roads that is provided with at interval; Adopt said structure, satisfy bulk cement truck a requirement of going easily for the highway gradient.
Above-mentioned broken line shape road embodiment has multiple, is preferably layer structure, is followed successively by from bottom to the top and rolls ash bed 43, Telford base 42, clay-bound macadam surface layer 41.The supercrust of certain above-mentioned broken line shape road also can be bitumen layer or cement layer etc.The structure of above-mentioned broken line shape road also is used in the road of other form of building on the ash dyke.
In order further to reduce lime-ash to transporting the influence of grey road, the road both sides of said broken line shape road are provided with ash retaining wall 9.Further being, in the ash retaining wall 9 of said road both sides, is descending ash retaining wall 92 near the ash retaining wall of a side of the dam crest 3 of initial dam 1, and opposite side is a upward slope ash retaining wall 91; The end face of said upward slope ash retaining wall 91 is higher than the road surface 44 of broken line shape road, and the road surface 44 of the end face of said descending ash retaining wall 92 and broken line shape road is positioned at same plane.Adopt said structure, the descending ash retaining wall can be used as the roadbed of broken line shape road, is used to support broken line shape road, the upward slope ash retaining wall can be used for supporting the road top on domatic the lime-ash rolling layers and can stop that the lime-ash on domatic is slipped on the road surface.
Discharge for the ponding that in time will transport on the grey road, said ash retaining wall 9 set inside have road drainage pipe 10.Road drainage pipe 10 can in time be discharged the ponding on the grey road of fortune from transporting grey road.Road drainage pipe 10 1 ends can be towards the grey road of fortune, and the other end is outside towards ash dyke, so just can the ponding on the grey road of fortune be expelled to the ash dyke outside.
In addition, in order to guarantee orderly the going of vehicle safety, the end face of said ash retaining wall 9 is provided with road pier 11.The road pier can be used as the boundary of vehicle ', helps guaranteeing vehicle safe driving.
Claims (10)
1. ash dyke process for constructing in dry ash field comprises initial dam (1), it is characterized in that may further comprise the steps:
A, from the dam crest (3) of initial dam (1) to lime-ash district (7) the discharging lime-ash of building a dam, through the lime-ash layered rolling that is discharged is built one-level ash dyke (21);
B, after the dam crest height of one-level ash dyke (21) is higher than the dam crest height of initial dam (1), through go up to build the dam crest (61) that the grey road of fortune (4) is transported to lime-ash one-level ash dyke (21) at one-level ash dyke (21);
C, be transported to one-level ash dyke (21) the lime-ash of dam crest (61) in the lime-ash of the dam crest (61) of one-level ash dyke (21) below is built a dam district (7) discharging or directly the dam crest (61) to one-level ash dyke (21) upward discharge; Through lime-ash layered rolling, form secondary ash dyke (22) to being discharged;
D, after the dam crest height of secondary ash dyke (22) is higher than the dam crest height of one-level ash dyke (21), through go up to build the dam crest (62) that the grey road of fortune (4) is transported to lime-ash secondary ash dyke (22) at secondary ash dyke (22);
E, be transported to secondary ash dyke (22) the lime-ash of dam crest (62) in the lime-ash of the dam crest (62) of secondary ash dyke (22) below is built a dam district (7) discharging or directly the dam crest (62) to secondary ash dyke (22) upward discharge; Through lime-ash layered rolling, form ash in class III slag dam (23) to being discharged;
F, after the dam crest height of ash in class III slag dam (23) is higher than the dam crest height of secondary ash dyke (22), through go up to build the dam crest (63) that the grey road of fortune (4) is transported to lime-ash ash in class III slag dam (23) at ash in class III slag dam (23);
G, analogize according to above-mentioned steps then, build ash dyke step by step, reach the object height of an ash heap ash until the dam crest height of the N level ash dyke of building (25);
The lime-ash of the layered rolling in the above-mentioned steps forms and rolls ash bed (43), and the coefficient of consolidation that rolls ash bed (43) is more than or equal to 0.96.
2. dry ash as claimed in claim 1 field ash dyke process for constructing is characterized in that: the grey road of said fortune (4) is built on the outer slope of ash dykes at different levels, and said outer slope is domatic towards initial dam (1) on the ash dykes at different levels.
3. dry ash as claimed in claim 2 field ash dyke process for constructing; It is characterized in that: the zone to being positioned at the road outside on the said outer slope is protected, and means of defence is for lay nonwoven layer (53), grit stone bed course (52), dry stone wall armour layer (51) rolling from the bottom to top successively on the ash bed (43).
4. dry ash as claimed in claim 2 field ash dyke process for constructing is characterized in that: the gradient of said outer slope is 1: 3 to 1: 3.5.
5. dry ash as claimed in claim 2 field ash dyke process for constructing; It is characterized in that: the grey road of said fortune (4) is a broken line shape road, and said broken line shape road comprises horizontal segment road (12) and the upward slope section road (13) between adjacent two horizontal segment roads that is provided with at interval.
6. dry ash as claimed in claim 5 field ash dyke process for constructing is characterized in that: said broken line shape road is a layer structure, is followed successively by from bottom to the top to roll ash bed (43), Telford base (42), clay-bound macadam surface layer (41).
7. dry ash as claimed in claim 5 field ash dyke process for constructing is characterized in that: the road both sides of said broken line shape road are provided with ash retaining wall (9).
8. dry ash as claimed in claim 7 field ash dyke process for constructing is characterized in that: in the ash retaining wall (9) of said road both sides, be descending ash retaining wall (92) near the ash retaining wall of a side of the dam crest (3) of initial dam (1), opposite side is upward slope ash retaining wall (91); The end face of said upward slope ash retaining wall (91) is higher than the road surface (44) of broken line shape road, and the road surface (44) of the end face of said descending ash retaining wall (92) and broken line shape road is positioned at same plane.
9. dry ash as claimed in claim 7 field ash dyke process for constructing is characterized in that: said ash retaining wall (9) set inside has road drainage pipe (10).
10. dry ash as claimed in claim 7 field ash dyke process for constructing is characterized in that: the end face of said ash retaining wall (9) is provided with road pier (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100689241A CN102174815B (en) | 2011-03-22 | 2011-03-22 | Method for constructing ash dam in dry ash yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100689241A CN102174815B (en) | 2011-03-22 | 2011-03-22 | Method for constructing ash dam in dry ash yard |
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| CN102174815A CN102174815A (en) | 2011-09-07 |
| CN102174815B true CN102174815B (en) | 2012-07-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952909B (en) * | 2012-11-07 | 2015-03-18 | 中国恩菲工程技术有限公司 | Smelting slag damming method |
| CN103132533A (en) * | 2013-02-28 | 2013-06-05 | 江苏昌泰建设工程有限公司 | Cutting-suction hydraulic-fill/filling damming method for ash storage yards in power industry |
| CN114263198A (en) * | 2022-01-27 | 2022-04-01 | 中煤西安设计工程有限责任公司 | Construction process combining gangue filling and road construction |
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| DD219814A1 (en) * | 1983-12-14 | 1985-03-13 | Orgreb Inst Kraftwerke | METHOD FOR THE HYDRAULIC STORAGE OF DUST-SOFT TO FINE-COATED SPOOLS |
| CN1099083A (en) * | 1994-02-17 | 1995-02-22 | 张明鉴 | Double-dam upper reaches method for construction of tailings dam |
| CN1232130A (en) * | 1998-04-16 | 1999-10-20 | 赵晖 | Tails dyke and ash dyke dual-dyke safety embanking method |
| CN100462517C (en) * | 2006-06-28 | 2009-02-18 | 贵阳铝镁设计研究院 | Building method of pulp placed rockfill ash dyke |
| CN101632993B (en) * | 2008-07-22 | 2012-03-07 | 鞍钢集团矿业公司 | Method for building tailings dam through adoption of mine dumping |
| CN101929161B (en) * | 2009-06-24 | 2011-08-31 | 鞍钢集团矿业公司 | Method for building high roller compaction water-permeable tailing dam by rock dumping |
| CN101851926B (en) * | 2010-06-23 | 2014-03-12 | 贵阳铝镁设计研究院有限公司 | Method for carrying out dry-method capacity expansion in mountainside wet-process red mud disposal site |
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