CN115094694A - Roadbed structure filled with industrial waste residues and construction process thereof - Google Patents
Roadbed structure filled with industrial waste residues and construction process thereof Download PDFInfo
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- CN115094694A CN115094694A CN202210840817.4A CN202210840817A CN115094694A CN 115094694 A CN115094694 A CN 115094694A CN 202210840817 A CN202210840817 A CN 202210840817A CN 115094694 A CN115094694 A CN 115094694A
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- 239000002440 industrial waste Substances 0.000 title claims abstract description 50
- 238000010276 construction Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 18
- 239000004746 geotextile Substances 0.000 claims abstract description 74
- 238000005452 bending Methods 0.000 claims abstract description 73
- 238000005056 compaction Methods 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims description 132
- 239000011229 interlayer Substances 0.000 claims description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 239000004575 stone Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 description 7
- 239000004744 fabric Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
Abstract
The invention provides an industrial waste residue filled roadbed structure and a construction process thereof, wherein the industrial waste residue filled roadbed structure comprises a plurality of compaction layers which are sequentially stacked from bottom to top and covered edges connected to the edges of the compaction layers, and the widths of the compaction layers are sequentially reduced from bottom to top; the compaction layer comprises geotextile, a fixing block and a filling layer, the geotextile comprises a first bending unit, a tiling unit and a second bending unit which are sequentially connected along a first preset path, and the first bending unit and the second bending unit respectively extend along an annular path and are respectively provided with free ends which are erected at the tops of the tiling units; the fixing block is arranged in the wrapping cavity; the filling layer is laminated on the top of the tiling unit so as to fix the free ends of the first bending unit and the second bending unit. The roadbed structure filled with the industrial waste residues and the construction process thereof reduce the construction cost and reduce the environmental pollution.
Description
Technical Field
The invention belongs to the technical field of highway infrastructure construction, and particularly relates to an industrial waste residue filled roadbed structure and a construction process thereof.
Background
The roadbed is a foundation of a track or a road surface and is an earth structure formed by excavation or filling. The roadbed mainly has the functions of providing necessary conditions for track or road surface laying and train or traveling operation, bearing static load and dynamic load of track and locomotive vehicle or road surface and traffic load, and transmitting and diffusing the load to the deep part of the foundation. On the longitudinal section, the roadbed must ensure the required elevation of the line; on the plane, the roadbed, the bridge and the tunnel are connected to form a complete through line. In civil engineering, the subgrade occupies an important position in the aspects of construction quantity, floor area and investment.
A large amount of soil and stone resources are consumed for filling the roadbed in the road engineering construction process, so that the cost is huge; and the utilization rate of industrial waste residues in China is low at present, most of the industrial waste residues are directly accumulated on the land, the land is invaded and serious environmental pollution is brought.
Disclosure of Invention
The embodiment of the invention provides an industrial waste residue filled roadbed structure and a construction process thereof, aiming at realizing the application of industrial waste residue in the roadbed construction process, reducing the environmental pollution and reducing the cost loss of roadbed filling.
In a first aspect, an embodiment of the present invention provides an industrial waste residue filled roadbed structure, including a plurality of compacted layers stacked in sequence from bottom to top, and a covered edge connected to edges of the plurality of compacted layers, wherein widths of the plurality of compacted layers decrease in sequence from bottom to top;
the compacted layer comprises:
the geotextile comprises a first bending unit, a spreading unit and a second bending unit which are sequentially connected along a first preset path, wherein the first preset path is parallel to the width direction of the compacted layer, the first bending unit and the second bending unit respectively extend along an annular path and respectively have free ends which are erected at the tops of the spreading unit, and the first bending unit and the second bending unit respectively enclose to form a wrapping cavity;
the fixing block is arranged in the wrapping cavity; and
the filling layer is arranged at the top of the tiled unit in a pressing mode to fix the first bending unit and the free end of the second bending unit, and the filling layer is made of industrial waste residues.
Compared with the prior art, the scheme shown in the embodiment of the application has the advantages that the roadbed structure is filled with the industrial waste residues, the industrial waste residues are used as a part of the roadbed structure through the construction process of applying the industrial waste residues to the roadbed structure, so that the environmental pollution caused by direct accumulation of the industrial waste residues on the land is avoided, the loss of soil and stone resources in roadbed construction is reduced, the construction cost is reduced, and the environmental pollution is reduced; the plurality of compaction layers are sequentially overlapped up and down, and the outer edge of each compaction layer is connected with the edge covering, so that the stability of the roadbed structure can be improved, and the landslide phenomenon can be prevented; the fixing of the geotextile is completed by filling the industrial waste residues in the construction process of filling the roadbed structure with the industrial waste residues, and the two fixing blocks are fixed at the two ends of the geotextile, so that the geotextile is fixed obviously, the construction is convenient, the construction efficiency is improved, and the construction quality is ensured.
With reference to the first aspect, in one possible implementation manner, the fixing block includes a wrapping bag, and crushed stones filled in the wrapping bag.
In some embodiments, the fixing blocks are stacked from bottom to top.
With reference to the first aspect, in one possible implementation manner, the geotextile includes:
a first paved layer;
the two second laying layers are symmetrically arranged at two ends of the first laying layer and comprise a flat laying part connected with the first laying layer and a bending part positioned at one side of the flat laying part, which is far away from the first laying layer;
two ends of the first laying layer are respectively erected at the tops of the two tiled parts;
the bending parts of the two second laying layers form the first bending unit and the second bending unit respectively;
the two second laying layers and the first laying layer form the laying unit.
In some embodiments, an anchor is connected between the tile and the first paved layer.
In some embodiments, the first and second paving layers respectively include an upper interlayer and a lower interlayer stacked in an up-down direction, and activated carbon powder filled between the upper interlayer and the lower interlayer, and the upper interlayer and the lower interlayer are connected by fibers.
With reference to the first aspect, in one possible implementation manner, the thickness of the edge cover is 0.5 to 1.0 m.
In a second aspect, an embodiment of the present invention further provides a construction process for filling a roadbed structure with industrial waste residues, which is used for constructing the roadbed structure filled with industrial waste residues, and includes the following steps:
s10: laying geotextile;
s20: respectively pressing fixed blocks at two ends of the geotextile, and reserving turning parts with preset lengths at two ends of the geotextile;
s30; turning the turning part towards the middle of the geotextile, covering the turning part at the top of the fixing block, and overlapping the free end of the turning part on the geotextile again to form a first bending unit and a second bending unit;
s40: a filling layer is laid between the first bending unit and the second bending unit, and the filling layer is respectively pressed at the free ends of the two turning parts to form a compaction layer;
s50: repeating the steps S10-S40 from bottom to top until the construction of the last compacted layer is completed;
s60: and paving clay at two ends of the compacted layers respectively to form a bound edge for connecting the compacted layers.
With reference to the second aspect, in a possible implementation manner, the step S10 specifically includes:
s11: laying the lower interlayer on an operation table top;
s12: uniformly paving activated carbon powder on the top surface of the lower interlayer, and compacting;
s13: laying an interlayer on the activated carbon powder;
s14: and connecting the fibers between the upper interlayer and the lower interlayer by adopting a needle punching method to form the geotextile.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a geotechnical waste residue filled roadbed structure provided by the embodiment of the invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Description of reference numerals:
10-compacting the layer;
11-geotextile; 111-a first bending unit; 112-a tiling unit; 113-a second bending unit; 114-a first layup; 115-a second layup; 116-a tile; 117-bending part;
12-fixing blocks; 121-a wrap-bag; 122-breaking stone;
13-a filler layer;
20-edge covering;
30-anchoring the bolt.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In this embodiment, the width direction of the compacted layer 10, i.e., the left-right direction in fig. 1, is the width direction of the cross section of the formed roadbed structure, and the extending direction of the roadbed structure, i.e., the length direction.
Referring to fig. 1 to 2 together, the roadbed filled with industrial waste residue according to the present invention will now be described. The roadbed structure filled with the industrial waste residues comprises a plurality of compaction layers 10 which are sequentially overlapped from bottom to top and covered edges 20 connected to the edges of the compaction layers 10, wherein the widths of the compaction layers 10 are sequentially reduced from bottom to top; the compacted layer 10 comprises geotextile 11, a fixed block 12 and a filling layer 13, the geotextile 11 comprises a first bending unit 111, a tiling unit 112 and a second bending unit 113 which are sequentially connected along a first preset path, the first preset path is parallel to the width direction of the compacted layer 10, the first bending unit 111 and the second bending unit 113 respectively extend along an annular path and respectively have free ends which are erected at the tops of the tiling unit 112, and the first bending unit 111 and the second bending unit 113 respectively enclose to form a wrapping cavity; the fixed block 12 is arranged in the wrapping cavity; the filling layer 13 is pressed on the top of the tiling unit 112 to fix the free ends of the first bending unit 111 and the second bending unit 113, and the filling layer 13 is made of industrial waste.
It should be noted that the industrial waste residue includes coal gangue, steel slag, blast furnace slag, boiler ash, and the like.
It should be understood that the circular paths of the first bending unit 111 and the second bending unit 113 are not necessarily standard circular paths, but only for meeting the end-to-end connection to wrap the fixing block 12, and thus the specific extending paths thereof are also related to the outer contour of the fixing block 12.
The roadbed structure is filled to industrial waste residue that this embodiment provided, at the actual in-process of laying, follow the construction of up carrying out every compaction layer 10 in proper order down earlier, the construction step of every compaction layer 10 is: laying geotextile 11; placing fixed blocks 12 at two ends of the geotextile 11, and reserving preset lengths at two ends of the geotextile 11 respectively; the two ends of the reserved geotextile 11 are respectively and reversely laid towards the middle part, so that the reserved geotextile 11 wraps the fixing block 12 and is overlapped on the top surface of the geotextile 11 to form a first bending unit 111 and a second bending unit 113 wrapping the periphery of the fixing block 12, and the geotextile 11 in a flat laying state forms a flat laying unit 112; then, industrial waste residues are filled in the flat laying units 112, so that the industrial waste residues compact the free ends of the first bending units 111 and the second bending units 113, further fixing the geotextile 11 is achieved, construction of the laminated compacted layers 10 is completed, the steps are repeated to complete construction of each compacted layer 10, and finally the edge covers 20 are arranged on the outer edges of the compacted layers 10 to form a roadbed structure.
Compared with the prior art, the roadbed structure filled with the industrial waste residues has the advantages that the industrial waste residues are used as a part of the roadbed structure in the construction process of applying the industrial waste residues to the roadbed structure, so that the environmental pollution caused by direct accumulation of the industrial waste residues on the land is avoided, the loss of soil and stone resources in roadbed construction is reduced, the construction cost is reduced, and the environmental pollution is reduced; the plurality of compaction layers 10 are sequentially overlapped up and down, and the outer edge is connected with the edge 20, so that the stability of the roadbed structure can be improved, and the landslide phenomenon can be prevented; the fixing blocks 12 are pressed on two sides of the geotextile 11, so that the geotextile 11 is fixed, and the fixing blocks can be arranged on two sides of the filling layer 13 in a blocking manner, so that the normal filling construction of the filling layer 13 is ensured, and the structural strength in subsequent use is improved; the first unit 111 that bends and the second unit 113 that bends of geotechnological cloth 11 have adopted the mode formation of anti-shop, combine filling layer 13 to the first unit 111 that bends and the frictional contact of the second unit 113 that bends, have restricted the displacement of soil in the filling layer 13, prevent the landslide, can also be appropriate increase the slope of side slope of road bed, realize receiving the effect on slope, reduced the area occupied of road bed, practice thrift the soil.
In some embodiments, a specific implementation of the fixing block 12 may adopt a structure as shown in fig. 1 to 2. Referring to fig. 1 to 2, the fixing block 12 includes a wrapping bag 121, and crushed stones 122 filled in the wrapping bag 121. After the geotextile 11 is laid, the broken stones 122 are firstly filled in the wrapping bag 121, then the wrapping bag 121 is placed on the geotextile 11, and the end part of the geotextile 11 is bent to wrap the fixing block 12, so that the first bending unit 111 or the second bending unit 113 is formed. The wrapping bag 121 and the broken stone 122 are used as the fixing block 12, so that the broken stone 122 on the site can be utilized, and the construction cost is reduced; wrapping bag 121 wraps rubble 122, also makes things convenient for the follow-up convenient operation when buckling geotechnological cloth 11's tip, prevents that rubble 122 from not having wrapping bag 121 parcel to cause geotechnological cloth 11 to lay inconveniently, reduces intensity of labour.
In some embodiments, a modified embodiment of the fixing block 12 may be configured as shown in fig. 1 to 2. Referring to fig. 1 to 2, a plurality of fixing blocks 12 are stacked from bottom to top. The fixed block 12 is overlapped and is equipped with a plurality of compactedness that can guarantee the compaction layer 10 edge, and then after setting up bordure 20, improves the both sides intensity of the roadbed structure of formation, reinforcing roadbed stability.
In some embodiments, a specific embodiment of the geotextile 11 described above may be constructed as shown in fig. 1 to 2. Referring to fig. 1 to 2, the geotextile 11 includes a first laying layer 114 and two second laying layers 115, the two second laying layers 115 are symmetrically disposed at two ends of the first laying layer 114, the second laying layer 115 includes a flat laying portion 116 connected to the first laying layer 114, and a bending portion 117 located at a side of the flat laying portion 116 away from the first laying layer 114; the two ends of the first laying layer 114 are respectively erected on the tops of the two tiling parts 116; the bending parts 117 of the two second paving layers 115 form a first bending unit 111 and a second bending unit 113 respectively; the tiles 116 of the two second laid layers 115 and the first laid unit form the tiled unit 112. The geotextile 11 is laid in three sections, so that the width of each section of geotextile 11 can be reduced, the geotextile can be conveniently laid, the laying progress is accelerated, and the construction efficiency of the roadbed is improved.
In some embodiments, a modified embodiment of geotextile 11 as described above may be constructed as shown in fig. 1. Referring to fig. 1, anchor studs 30 are connected between the tiles 116 and the first layer of pavement 114. After the two second paved layers 115 are paved, overlapping the first paved layer 114 between the two second paved layers 115, so that two ends of the first paved layer 114 are respectively positioned at the tops of the two tiled parts 116, stretching the first paved layer 114 and the second paved layer 115 to be tightened, fixing the anchor bolts 30, and then paving the filling layer 13; the anchoring bolts 30 are used for fixing the geotextile 11, so that the geotextile 11 can be prevented from moving when the filling layer 13 is constructed; and can keep geotechnological cloth 11's taut state, reduce geotechnological cloth 11's usable floor area, reduce cost.
In some embodiments, a specific implementation of first and second paved layers 114, 115 described above can be configured as follows. The first and second paving layers 114 and 115 respectively include an upper interlayer and a lower interlayer stacked in the up-down direction, and activated carbon powder filled between the upper and lower interlayers, which are connected by fibers. Because the packing layer adopts industrial waste residue, under the rainwater environment, the leaching solution that industrial waste residue produced after the rainwater leaching appears the seepage, and the heavy metal composition in the leaching solution of seepage can pollute soil, surface water and groundwater, through set up activated carbon powder at last intermediate layer and lower intermediate layer, utilizes activated carbon powder to adsorb the heavy metal element in the industrial waste residue leaching solution, avoids the secondary pollution after the industrial waste residue utilizes.
It should be noted that after the activated carbon powder is sandwiched between the upper interlayer and the lower interlayer, the fibers of the upper interlayer are connected to the lower interlayer by needle pressing through the activated carbon powder by needle punching, so as to form a plurality of small fiber spaces, which are filled with the activated carbon powder and used as the geotextile 11, thereby improving the structural strength of the geotextile 11 and effectively improving the bearing capacity and stability of the roadbed.
In some embodiments, a modified embodiment of the above-described hem 20 may be constructed as follows. Not shown in the drawings, the thickness of the covering edge 20 is 0.5 to 1.0 m. By controlling the thickness of the wrapping edge 20, heavy metal ions can be prevented from being exposed from the slope surface, slope greening is convenient to carry out, and landslide can be reduced.
Based on the same inventive concept, the embodiment of the application also provides a construction process for filling the roadbed structure with the industrial waste residues, which comprises the following steps:
s10: laying geotextile 11;
s20: fixing blocks 12 are respectively pressed at two ends of the geotextile 11, and folding parts with preset lengths are respectively reserved at two ends of the geotextile 11;
s30; the turning part is turned towards the middle part of the geotextile 11 and covers the top of the fixing block 12, and the free end of the turning part is overlapped on the geotextile 11 again to form a first bending unit 111 and a second bending unit 113;
s40: a filling layer 13 is laid between the first bending unit 111 and the second bending unit 113, and the filling layer 13 is respectively pressed at the free ends of the two turning parts to form a compaction layer 10;
s50: repeating the steps S10-S40 from bottom to top until the construction of the last compacted layer 10 is completed;
s60: clay is laid on both ends of the compacted layers 10 to form a covered edge 20 connecting the compacted layers 10.
The construction process of roadbed structure is filled to industrial waste residue that this embodiment provided, at the actual in-process of laying, follow the construction of up carrying out every compacted layer 10 in proper order down earlier, the construction step of every compacted layer 10 is: laying geotextile 11; placing fixed blocks 12 at two ends of the geotextile 11, and reserving preset lengths at two ends of the geotextile 11 respectively; the two ends of the reserved geotextile 11 are respectively and reversely laid towards the middle part, so that the reserved geotextile 11 wraps the fixing block 12 and is overlapped on the top surface of the geotextile 11 to form a first bending unit 111 and a second bending unit 113 wrapping the periphery of the fixing block 12, and the geotextile 11 in a flat laying state forms a flat laying unit 112; then, industrial waste residues are filled in the flat laying units 112, so that the industrial waste residues compact the free ends of the first bending units 111 and the second bending units 113, further fixing the geotextile 11 is achieved, construction of the laminated compacted layers 10 is completed, the steps are repeated to complete construction of each compacted layer 10, and finally the edge covers 20 are arranged on the outer edges of the compacted layers 10 to form a roadbed structure.
Compared with the prior art, the fixing of the geotextile 11 is finished by filling the industrial waste residues in the construction process of filling the roadbed structure with the industrial waste residues, and the two fixing blocks 12 are also fixed at the two ends of the geotextile 11, so that the fixing effect on the geotextile 11 is remarkable, the construction is convenient, the construction efficiency is improved, and the construction quality is ensured; a plurality of compaction layers 10 are overlapped from top to bottom in sequence, and the edge 20 is connected to the outer edge, so that the stability of the roadbed structure can be improved, and landslide is prevented.
In some embodiments, a specific implementation of the geotextile may adopt the following structure, and the step S10 specifically includes:
s11: laying the lower interlayer on an operation table top;
s12: uniformly paving activated carbon powder on the top surface of the lower interlayer, and compacting;
s13: laying an interlayer on the activated carbon powder;
s14: the fibers between the upper and lower interlayers are connected by needle punching to form geotextile 11.
Geotextiles, also known as geotextiles, are water permeable geosynthetic materials made of synthetic fibers by needling or weaving. In this embodiment, the lower interlayer and the upper interlayer are both made of one geotextile, and the activated carbon powder is laid between the two geotextiles and then a new geotextile is formed by a needle punching method, so that the activated carbon composite geotextile is obtained, the structural compactness of the new geotextile is ensured, the tightening effect on the roadbed slope is improved, and the adsorption of heavy metal components is conveniently realized.
Specifically, the construction steps of the roadbed structure filled with the industrial waste residue of the embodiment are as follows:
(1) backfilling soil to the ground elevation and compacting;
(2) laying two second laid layers 115 at intervals, wherein the distribution paths of the two second laid layers 115 are parallel to the first preset path, applying tension to opposite sides of the two second laid layers 115 respectively to enable the two second laid layers 115 to be tightened respectively, and fixing the opposite sides of the two second laid layers 115 by using anchoring bolts 30 respectively;
(3) laying the first laid layer 114 between two second laid layers 115, respectively overlapping two ends of the first laid layer 114 on the tiled parts 116 of the second laid layers 115, wherein the overlapping length is 30-50cm, and fixing the overlapped part of the first laid layer 114 and the second laid layer 115 by using an anchor 30;
it should be noted that the surface of the geotextile 11 should be smooth and should not be in direct contact with hard objects such as gravel, and after the geotextile 11 is laid, the next step should be carried out as soon as possible in order to avoid long-term exposure to sunlight;
(4) industrial waste residues are filled in the tiled parts 116 of the first laying layer 114 and the two second laying layers 115, and in the filling process, the filled industrial waste residues are compacted continuously until a filling layer 13 is formed, so that the height of the filling layer 13 is equal to that of the first bending unit 111 and the second bending unit 113, and the construction of the first compacted layer 10 is completed;
it should be noted that the first bending unit 111 and the second bending unit 113 have the same height;
(5) paving and compacting clay on the outer side of the first compacted layer 10 to form a covered edge 20 corresponding to the single compacted layer 10;
(6) repeating the steps to lay the next layer of compacted layer 10 until all the layers 10 are laid;
it should be noted that, when the next compacted layer 10 is constructed, the compaction degree of the previous compacted layer 10 needs to be detected, the compaction degree should meet the design requirement, and meanwhile, the broken stones 122 in the wrapping bag 121 are detected, so that the fixed block 12 deformed in the process of backfilling industrial waste residues and rolling is timely processed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The roadbed structure filled with the industrial waste residues is characterized by comprising a plurality of compaction layers and covered edges, wherein the compaction layers are sequentially stacked from bottom to top, the covered edges are connected to the edges of the compaction layers, and the widths of the compaction layers are sequentially reduced from bottom to top;
the compacted layer comprises:
the geotextile comprises a first bending unit, a spreading unit and a second bending unit which are sequentially connected along a first preset path, wherein the first preset path is parallel to the width direction of the compacted layer, the first bending unit and the second bending unit respectively extend along an annular path and respectively have free ends which are erected at the tops of the spreading unit, and the first bending unit and the second bending unit respectively enclose to form a wrapping cavity;
the fixing block is arranged in the wrapping cavity; and
the filling layer is arranged at the top of the tiled unit in a pressing mode to fix the first bending unit and the free end of the second bending unit, and the filling layer is made of industrial waste residues.
2. The industrial slag-filled roadbed structure of claim 1, wherein the fixing block comprises a wrapping bag, and crushed stone filled in the wrapping bag.
3. The industrial residue filled roadbed structure of claim 2, wherein the fixing blocks are stacked in plurality from bottom to top.
4. The industrial slag-filled roadbed structure of claim 1, wherein the geotextile comprises:
a first paved layer;
the two second laying layers are symmetrically arranged at two ends of the first laying layer and comprise a flat laying part connected with the first laying layer and a bending part positioned at one side of the flat laying part, which is far away from the first laying layer;
two ends of the first laying layer are respectively erected at the tops of the two tiled parts;
the bending parts of the two second laying layers form the first bending unit and the second bending unit respectively;
the two second laying layers and the first laying layer form the laying unit.
5. The industrial slag-filled roadbed structure of claim 4, wherein an anchor bolt is connected between the tiled portion and the first paved layer.
6. The industrial residue-filled roadbed structure of claim 4, wherein the first and second paved layers respectively comprise an upper interlayer and a lower interlayer which are stacked in an up-down direction, and activated carbon powder filled between the upper interlayer and the lower interlayer, and the upper interlayer and the lower interlayer are connected by fiber.
7. The industrial slag-filled roadbed structure of claim 1, wherein the thickness of the bordure is 0.5-1.0 m.
8. A construction process for an industrial waste residue-filled roadbed structure, which is used for constructing the industrial waste residue-filled roadbed structure according to any one of claims 1 to 7, comprising the steps of:
s10: laying geotextile;
s20: respectively pressing fixed blocks at two ends of the geotextile, and reserving turning parts with preset lengths at two ends of the geotextile;
s30; the turning and folding part is turned towards the middle part of the geotextile and covers the top of the fixing block, and the free end of the turning and folding part is erected on the geotextile again to form a first bending unit and a second bending unit;
s40: a filling layer is laid between the first bending unit and the second bending unit, and the filling layer is respectively pressed at the free ends of the two turning parts to form a compaction layer;
s50: repeating the steps S10-S40 from bottom to top until the construction of the last compacted layer is completed;
s60: and paving clay at two ends of the compacted layers respectively to form a bound edge for connecting the compacted layers.
9. The construction process for filling a roadbed structure with industrial waste residues according to claim 8, wherein the step S10 specifically comprises:
s11: laying the lower interlayer on an operation table top;
s12: uniformly paving activated carbon powder on the top surface of the lower interlayer, and compacting;
s13: laying an interlayer on the activated carbon powder;
s14: and connecting the fibers between the upper interlayer and the lower interlayer by adopting a needle punching method to form the geotextile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210840817.4A CN115094694A (en) | 2022-07-18 | 2022-07-18 | Roadbed structure filled with industrial waste residues and construction process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116180525A (en) * | 2023-02-03 | 2023-05-30 | 中国建设基础设施有限公司 | Reinforced gangue embankment structure and construction method |
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| CN104631254A (en) * | 2014-12-26 | 2015-05-20 | 石家庄铁道大学 | Construction method of geogrid reinforced clay edge-covered tailing subgrade |
| RU2597349C1 (en) * | 2015-05-07 | 2016-09-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") | Method for installation of cellular road |
| CN208815364U (en) * | 2018-07-28 | 2019-05-03 | 新疆维吾尔自治区交通规划勘察设计研究院 | One kind returning packet mode TGXG Steep Slope Embankment structure |
| CN112458811A (en) * | 2020-11-30 | 2021-03-09 | 中国铁路通信信号上海工程局集团有限公司 | Roadbed widening structure and roadbed widening method |
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| CN104631254A (en) * | 2014-12-26 | 2015-05-20 | 石家庄铁道大学 | Construction method of geogrid reinforced clay edge-covered tailing subgrade |
| RU2597349C1 (en) * | 2015-05-07 | 2016-09-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") | Method for installation of cellular road |
| CN208815364U (en) * | 2018-07-28 | 2019-05-03 | 新疆维吾尔自治区交通规划勘察设计研究院 | One kind returning packet mode TGXG Steep Slope Embankment structure |
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| CN116180525A (en) * | 2023-02-03 | 2023-05-30 | 中国建设基础设施有限公司 | Reinforced gangue embankment structure and construction method |
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