CN111979973B - Method for rapidly constructing slag dam of abandoned slag yard and slag dam of abandoned slag yard - Google Patents
Method for rapidly constructing slag dam of abandoned slag yard and slag dam of abandoned slag yard Download PDFInfo
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- CN111979973B CN111979973B CN202010715881.0A CN202010715881A CN111979973B CN 111979973 B CN111979973 B CN 111979973B CN 202010715881 A CN202010715881 A CN 202010715881A CN 111979973 B CN111979973 B CN 111979973B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
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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
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Abstract
The invention provides a method for quickly constructing a waste slag field slag retaining dam and the waste slag field slag retaining dam, wherein the slag retaining dam is divided into a plurality of stages of buildings, a cleaning ditch bottom is excavated in advance before a main body structure of a first-stage dam body is filled, and a drainage culvert pipe is embedded; filling gelled sand gravel materials upwards from the bottom of the ditch, and performing rolling while filling to form a primary dam body main structure; in the filling process of the dam body main structure in the first stage, an upstream rockfill structure of the dam body main structure is constructed at the same time, the upstream rockfill structure of the dam body main structure serves as a water seepage channel between backfill waste slag and the dam body main structure and also serves as a dam body main structure construction template, the upstream side of the rockfill structure is subjected to synchronous waste slag backfilling, and the downstream face of the dam body main structure in the first stage is synchronously provided with mortar plastering; the top surface of the dam body main structure in the first period is set as a construction foundation surface for heightening the dam body main structure; the dam building material is prepared from local materials, does not need additional mining and processing, and has the advantages of simple structure and rapid rolling construction.
Description
Technical Field
The invention relates to the technical field of abandoned dreg site engineering, in particular to a method for quickly constructing a abandoned dreg site slag blocking dam and the abandoned dreg site slag blocking dam.
Background
The construction of the slag dump generally requires that the slag is blocked and then discarded, namely, the slag dam is constructed firstly and then the slag is discarded. Generally, the waste slag yard slag dam adopts concrete and masonry stone as a damming material, although the slag yard slag dam is firm, the vertical mold, the concrete aggregate and the masonry stone for concrete pouring need to be additionally mined and processed, and the construction speed for pouring the concrete and building the masonry stone is slow.
After the project is started, excavation construction such as construction road construction and site leveling is carried out, and a large amount of waste slag is generated, so that the formation of a slag blocking dam of a waste slag field restricts the project progress and influences the construction period.
Disclosure of Invention
The invention aims to provide a method for quickly constructing a slag dam of a waste slag yard, which can be quickly constructed and put into use as soon as possible. Therefore, the invention adopts the following technical scheme:
a method for rapidly constructing a slag dam of a waste slag yard is characterized by comprising the following steps: the slag blocking dam is divided into a plurality of stages of buildings and comprises the following construction steps:
s1: excavating and cleaning the bottom of a ditch in advance before filling the main structure of the dam body in the first stage, and embedding a drainage culvert pipe in advance;
s2: filling gelled sand gravel materials upwards from the bottom of the ditch, and performing rolling while filling to form a primary dam body main structure; in the filling process of the main structure of the first-stage dam body, a rockfill structure which ascends synchronously with the main structure of the dam body is arranged on the upstream face of the main structure of the first-stage dam body, backfilling waste slag is arranged on the upstream of the rockfill structure, the backfilling waste slag and the rockfill structure ascend synchronously, the rockfill structure is used as a water seepage channel of the downstream face of the backfilling waste slag and is also used for filling an upstream template of the main structure of the dam body, and a mortar plastering face is arranged on the downstream face of the main structure of the first-stage dam body synchronously; the top surface of the dam body main structure in the first period is set as a construction foundation surface for heightening the dam body main structure;
s3: after the construction of the slag and rockfill structure at the upstream side of the dam body main structure of the first stage and the dam body main structure of the first stage is completed, constructing the dam body main structure of the next stage on a heightened construction foundation table top surface at the top surface of the dam body main structure of the first stage;
s4: when a new first-stage dam body structure is constructed, a new first-stage dam body structure and a rock-fill structure which are connected with a previous-stage rock-fill structure are arranged at the same time, and a dam body structure mortar plastering surface which is connected with a previous-stage mortar plastering surface is arranged; the new first-stage dam body main structure, the upstream rockfill structure and the backfilled waste slag ascend synchronously, and the upstream rockfill structure is used as a water seepage channel of the downstream surface of the new first-stage backfilled waste slag and is also used as a new first-stage dam body main structure for filling an upstream template; the top surface of the main structure of the new first-stage dam body is set as a heightened construction foundation table surface;
s5: and (5) when the new primary dam body structure, the rockfill structure and the backfilled waste slag in the step 4 are completed, repeating the step S4, and carrying out the construction of the new primary dam body structure, the rockfill structure and the backfilled waste slag.
The dam body main structure and the heightening structure are formed by filling and rolling gelled sand gravel materials in a layered mode.
The second purpose of the invention is to provide a slag blocking dam for a waste slag yard, which can be quickly constructed and put into use as soon as possible. Therefore, the invention adopts the following technical scheme:
the utility model provides a abandon cinder yard slag blocking dam which characterized in that: including the dam body major structure that the top can be heightened, dam body major structure upper reaches face sets up the rock-fill structure, and dam body major structure lower reaches face is equipped with the mortar and wipes one's face, and dam body major structure top surface is set up to the construction foundation face that the dam body increased the structure.
Further: and a drainage culvert pipe is arranged at the bottom of the slag stopping dam of the waste slag field.
Further: the slope of the upstream slope of the dam body structure is greater than the slope of the downstream slope of the dam body structure.
Further: the height that increases dam body major structure is 1~3m, the upstream face that increases dam body major structure sets up the rock-fill structure that links up with dam body major structure of previous phase, the downstream face that increases dam body major structure sets up the structure mortar that increases that links up with the downstream mortar of dam body major structure of previous phase, increases the structure top surface and also sets up to increase the construction foundation face.
Further: the dam body main structure and the heightening dam body main structure are formed by filling and rolling gelled sand gravel materials in a layered mode.
Compared with the prior art, the invention has the following beneficial effects:
the dam body can be constructed quickly, the dam building materials are obtained from local materials, additional mining and processing are not needed, the dam body can be heightened section by section, the slag stopping and the stage construction of the dam body can be synchronous, and the dam body can be used for stopping slag as early as possible; and dam body major structure low reaches face is equipped with mortar and plasters, need not set up the template, and dam body major structure upper reaches face is equipped with the rock-fill structure, and as the use of sediment body low reaches face infiltration passageway and dam body major structure template, simple structure can roll the construction fast, and the practicality is high.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic front view of the structure of fig. 1.
Fig. 3 is a schematic structural view of the heightening structure of the present invention.
Fig. 4 is a schematic front view of the structure of fig. 3.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
As shown in fig. 1-4, the method for rapidly constructing the slag blocking dam of the abandoned slag yard, provided by the invention, divides the slag blocking dam into a plurality of stages of buildings and comprises the following construction steps:
s1: excavating and cleaning the trench bottom 11 in advance before filling the main structure of the dam body in the first stage, and embedding a drainage culvert pipe in advance;
s2: filling gelled sand gravel materials upwards from the bottom of the ditch, and performing rolling while filling to form a primary dam body main structure; in the filling process of the primary dam body main structure, the rockfill structure is arranged on the upstream face of the primary dam body main structure and serves as a template of the dam body main structure and a water seepage channel between the backfill waste slag and the dam body main structure, the primary dam body main structure, the rockfill structure and the backfill waste slag can be synchronously constructed, and the construction of all the slag dams is not required to be finished. The downstream surface of the dam body structure in the first period is synchronously provided with mortar plastering, so that the downstream surface is prevented from being provided with a template, and rapid rolling construction is realized; the top surface of the dam body main structure in the first period is set as a construction foundation surface for heightening the dam body main structure; the slope of the upstream slope of the dam body structure in the first period is greater than that of the downstream slope.
S3: after the construction of the slag and rockfill structure at the upstream side of the dam body main structure at the first stage and the dam body main structure at the first stage is completed, constructing the dam body main structure at the second stage on a heightened construction foundation table top surface at the top surface of the dam body main structure at the first stage;
s4: when the dam body structure construction of the second stage is carried out, a second stage rockfill structure 3 connected with the first stage rockfill structure and a second stage dam body structure mortar plastering connected with the first stage mortar plastering are arranged at the same time; the top surface of the dam body main structure in the second stage is set as a heightened construction foundation table surface; and similar to the step S2, when the rockfill structure, the dam body structure, and the backfill waste slag construction are performed on the upstream side of the second-stage dam body structure, the rockfill structure may be formed by a template of the second-stage dam body structure, and the backfill waste slag is performed on the upstream side of the second-stage rockfill structure.
And constructing a heightening structure 9 by stages according to the method, heightening the dam body main structure, and backfilling the waste slag synchronously with the heightening of the dam body main structure by stages until the construction of the slag stopping dam of the waste slag field is completed. Realizes quick construction and is put into waste slag in advance.
To sum up, the slag dam 10 constructed by the construction method of the slag stopping dam in the abandoned slag yard provided by the invention comprises the following structures: top liftable dam body major structure 1, dam body major structure 1 is as the bottom basis that increases structure 9, 1 upper reaches of dam body major structure 7 sets up the rockfill structure 4 of dam body major structure 1, rockfill structure 4 is the rockfill of certain thickness, rockfill structure 4 is for abandoning 12 downstream face infiltration passageways of sediment and do dam body major structure 1's construction template concurrently, 1 downstream face 8 of dam body major structure is equipped with mortar plastering 6, 1 top surface of dam body major structure is set up to the construction foundation face 5 that increases structure 9. And a drainage culvert pipe 2 is arranged at the bottom of the slag stopping dam 10 of the waste slag yard.
The height of the dam body main structure in the first stage and the height increasing structure 9 in each stage at the bottom is 1-3 m. The dam body main structure 1 and the heightening structure 9 are formed by filling and rolling gelled gravel materials layer by layer. The slope of the upstream slope of the dam body main structure 1 is greater than the slope of the downstream slope of the dam body main structure 1.
The upstream face 7 that increases the structure 9 sets up the rockfill structure that links up with the rockfill structure 4 of dam body major structure 1 of previous stage, the downstream face 8 that increases the structure 9 sets up the structure mortar plastering that increases that links up with the downstream mortar plastering 6 of dam body major structure 1.
The above embodiment is merely a preferred embodiment of the present invention, and those skilled in the art will understand that modifications or substitutions of technical solutions or parameters in the embodiment can be made without departing from the principle and essence of the present invention, and all of them shall be covered by the protection scope of the present invention.
Claims (4)
1. A method for rapidly constructing a slag dam of a waste slag yard is characterized by comprising the following steps: the slag blocking dam is divided into a plurality of stages of buildings and comprises the following construction steps:
s1: excavating and cleaning the bottom of the trench in advance before filling the main structure of the dam body in the first stage, and embedding a drainage culvert pipe in advance;
s2: filling gelled sand gravel materials upwards from the bottom of the ditch, and performing rolling while filling to form a primary dam body main structure; in the filling process of the main structure of the first-stage dam body, a rockfill structure which ascends synchronously with the main structure of the dam body is arranged on the upstream face of the main structure of the first-stage dam body, backfilling waste slag is arranged on the upstream of the rockfill structure, the backfilling waste slag and the rockfill structure ascend synchronously, the rockfill structure is used as a water seepage channel of the downstream face of the backfilling waste slag and is also used for filling an upstream template of the main structure of the dam body, and a mortar plastering face is arranged on the downstream face of the main structure of the first-stage dam body synchronously; the top surface of the dam body main structure in the first period is set as a construction foundation surface for heightening the dam body main structure;
s3: after the construction of the slag and rockfill structure at the upstream side of the dam body main structure of the first stage and the dam body main structure of the first stage is completed, constructing the dam body main structure of the next stage on a heightened construction foundation table top surface at the top surface of the dam body main structure of the first stage;
s4: when a new first-stage dam body structure is constructed, a new first-stage dam body structure and a rock-fill structure which are connected with a previous-stage rock-fill structure are arranged at the same time, and a dam body structure mortar plastering surface which is connected with a previous-stage mortar plastering surface is arranged; the new first-stage dam body main structure, the upstream rockfill structure and the backfilled waste slag ascend synchronously, and the upstream rockfill structure is used as a water seepage channel of the downstream surface of the new first-stage backfilled waste slag and is also used as a new first-stage dam body main structure for filling an upstream template; the top surface of the main structure of the new first-stage dam body is set as a heightened construction foundation table surface;
s5: and (5) when the new primary dam body structure, the rockfill structure and the backfilled waste slag in the step 4 are completed, repeating the step S4, and carrying out the construction of the new primary dam body structure, the rockfill structure and the backfilled waste slag.
2. The method for rapidly constructing the slag stopping dam of the abandoned slag yard according to claim 1, characterized in that: the dam body main structure and the heightening structure are formed by filling and rolling gelled gravel materials layer by layer.
3. The method for rapidly constructing the slag stopping dam of the abandoned slag yard according to claim 1, characterized in that: the slope of the upstream slope of the dam body main structure is greater than the slope of the downstream slope of the dam body main structure.
4. The method for rapidly constructing the slag stopping dam of the abandoned slag yard according to claim 1, which is characterized in that: the height of the main body structure of the heightening dam body is 1-3 m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010715881.0A CN111979973B (en) | 2020-07-23 | 2020-07-23 | Method for rapidly constructing slag dam of abandoned slag yard and slag dam of abandoned slag yard |
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| CN202010715881.0A CN111979973B (en) | 2020-07-23 | 2020-07-23 | Method for rapidly constructing slag dam of abandoned slag yard and slag dam of abandoned slag yard |
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| CN111979973A CN111979973A (en) | 2020-11-24 |
| CN111979973B true CN111979973B (en) | 2022-07-05 |
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| JP4079435B2 (en) * | 2004-03-31 | 2008-04-23 | 内閣府沖縄総合事務局長 | Construction method of PC inclined formwork and dam body for dam construction |
| CN102277860B (en) * | 2010-12-28 | 2013-09-25 | 沈阳市利千水利技术开发有限责任公司 | Construction method for fill mortar junction stone dam of mortar stone precast block masonry dam shell |
| CN104532798A (en) * | 2014-12-26 | 2015-04-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Flexible debris retaining dam structure and construction method thereof |
| CN110130278B (en) * | 2019-05-29 | 2020-02-21 | 中国水利水电科学研究院 | Construction method of cemented dam |
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