CN220246997U - Utilize geotechnique to add extension rubbish dam of muscle mould bag solidification soil - Google Patents
Utilize geotechnique to add extension rubbish dam of muscle mould bag solidification soil Download PDFInfo
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- CN220246997U CN220246997U CN202321613811.XU CN202321613811U CN220246997U CN 220246997 U CN220246997 U CN 220246997U CN 202321613811 U CN202321613811 U CN 202321613811U CN 220246997 U CN220246997 U CN 220246997U
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- 239000002689 soil Substances 0.000 title claims abstract description 93
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 19
- 238000007711 solidification Methods 0.000 title description 3
- 230000008023 solidification Effects 0.000 title description 3
- 210000003205 muscle Anatomy 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- 239000004746 geotextile Substances 0.000 claims abstract description 48
- 230000002787 reinforcement Effects 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 8
- 238000005728 strengthening Methods 0.000 claims description 8
- 239000011440 grout Substances 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims 4
- 239000004927 clay Substances 0.000 claims 1
- 239000002990 reinforced plastic Substances 0.000 claims 1
- 239000010802 sludge Substances 0.000 description 9
- 239000010881 fly ash Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- 238000005507 spraying Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a constructed garbage dam utilizing geotechnical reinforcement molding bags to solidify soil, which comprises a reinforcing part and an heightening part; the reinforcing part is connected with the side wall of the old dam body, and the heightening part is arranged on the top surfaces of the reinforcing part and the old dam body; the reinforcement part comprises a plurality of first reinforcement layers; one side of the first reinforcement layer, which is close to the old dam body, is connected with the old dam body through a traction piece; the traction piece comprises a steel floral tube and a steel tube; one end of the steel flowered pipe is inserted into the old dam body, and the other end is connected with the steel pipe; the first reinforcement layer comprises reinforcement geotextile and mould bag solidified soil; one end of the reinforced geotextile is pressed between the upper layer of die bag solidified soil and the lower layer of die bag solidified soil, the other end of the reinforced geotextile extends horizontally, bypasses the steel pipe downwards and then extends horizontally reversely, and is pressed between the upper layer of die bag solidified soil and the lower layer of die bag solidified soil, so that the die bag solidified soil is wrapped in the reinforced geotextile positioned in the upper layer and the lower layer of die bag solidified soil. Through the improvement, the stability of the connection between the new dam body and the old dam body is better by the aid of the constructed garbage dam.
Description
Technical Field
The utility model relates to the field of buildings, in particular to a constructed garbage dam by utilizing geotechnical reinforcement molding bags to solidify soil.
Background
With the rapid increase of the amount of domestic waste, the existing landfill is difficult to continue to fill the increasing amount of waste, and in view of the limited land used for the landfill and the limited storage capacity of the existing landfill, the extension treatment of the existing landfill is required to improve the storage capacity of the existing landfill. Because the landfill site is limited in use and in order to greatly improve the storage capacity of the existing landfill site, the extension of the existing landfill site needs to be subjected to heightened treatment, and at least two requirements on the heightened extension of the existing landfill site are met, firstly, the garbage dam is required to have enough stability to ensure that the garbage dam cannot slide or collapse under the influence of various natural and human factors, and secondly, the garbage dam is required to have enough impermeability to prevent leakage pollution of garbage in the landfill site. However, the existing dam topology technology cannot meet the above requirements.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a constructed garbage dam by utilizing geotechnical reinforcement molding bags to solidify soil.
The technical scheme for solving the technical problems is as follows:
a kind of rubbishes dam of building of the solidified soil of the reinforcement mould bag of utilizing geotechnique, is used for strengthening and building the old dam body, including strengthening the portion and heightening the portion, wherein, the said strengthening portion is connected with sidewall of the said old dam body, the said heightening the portion is set up on top surfaces of the said strengthening portion and said old dam body; the reinforcement part comprises a plurality of first reinforcement layers which are stacked along the height direction of the reinforcement part; one side, close to the old dam body, of the first reinforcement layer is connected with the old dam body through a traction piece;
the traction piece comprises a steel floral tube and a steel tube; one end of the steel flowtube is inserted into the old dam body, and the other end of the steel flowtube extends out of the old dam body and is connected with the steel tube; the axial direction of the steel pipe is perpendicular to the axial direction of the steel flower pipe; the first reinforcement layer comprises reinforcement geotextile and mould bag solidified soil; one end of the reinforced geotextile is pressed between the solidified soil of the upper layer of mould bags and the lower layer of mould bags, the other end of the reinforced geotextile extends horizontally, bypasses the steel pipe downwards, extends horizontally reversely, and is pressed between the solidified soil of the upper layer of mould bags and the lower layer of mould bags; the mould bag solidified soil is wrapped in the reinforced geotextile positioned on the upper layer and the lower layer.
Preferably, grouting holes are formed in the circumferential direction of the steel flowtube, the grouting holes are arranged along the axial direction of the steel flowtube, and grouting channels communicated with the grouting holes are formed in the steel flowtube.
Preferably, the diameter of the steel flower pipe is 75mm, and the wall thickness is not less than 5mm; barb angle steel is welded at the slurry outlet.
Preferably, the pitch of the slurry outlet holes is 200-500 mm, and the diameter is 7-10 mm.
Preferably, the two layers of the mould bag solidified soil are vertically stacked and are sequentially arranged along the extending direction of the reinforced geotextile.
Preferably, the upper layer and the lower layer in the reinforced geotextile are fixed on the mould bag solidified soil through fixed nails.
Preferably, the steel bars in the upper layer of reinforced geotextile and the lower layer of reinforced geotextile are connected and fixed with the steel pipes fixed on the old dam body in an electric welding mode.
Preferably, the heightening part comprises a plurality of second reinforcement layers which are stacked along the height direction of the heightening part; the second reinforcement layer comprises reinforcement geotextile and mold bag solidified soil.
Preferably, the reinforced concrete dam further comprises a reinforced concrete dam body arranged on the outer sides of the reinforcing part and the heightening part, wherein the reinforced concrete dam body is connected with the end part of the reinforced geotechnical cloth.
Preferably, each layer of mould bags is solidified with a layer of sandy cohesive soil above and below the soil to fill the pores.
Compared with the prior art, the method has the following beneficial effects:
1. the construction of the constructed garbage dam by using the geotechnical reinforcement molding bag solidified soil is convenient, and the dam of a garbage landfill can be well constructed under the condition of limited land use, so that the storage capacity is improved.
2. The steel flowtube is used in the construction of the garbage dam by utilizing the geotechnical reinforcement molding bag solidified soil, so that the anchoring and anti-slip capabilities can be enhanced, and the connection strength of new and old dam bodies can be greatly improved.
3. The reinforced geotextile is used in the constructed garbage dam by using the geotextile reinforced mould bag solidified soil, so that the mould bag solidified soil can be tightly wrapped and clamped, the whole dam body forms a stable whole, and the whole function of the dam can be effectively exerted.
Drawings
FIG. 1 is a schematic diagram of the construction of a refuse dam of the present utility model utilizing geotechnical reinforced molded bag solidified soil.
Fig. 2 is a schematic structural view of the reinforcement portion.
Fig. 3 is a schematic structural view of a steel flowtube.
Detailed Description
The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.
Referring to fig. 1-3, the utility model discloses a rubbishes dam built by using geotechnical reinforcement molding bags to solidify soil, which is used for reinforcing and building an old dam body 8, and comprises a reinforcing part and a heightening part, wherein the reinforcing part is connected with the side wall of the old dam body 8, and the heightening part is arranged on the top surfaces of the reinforcing part and the old dam body 8; the reinforcement part comprises a plurality of first reinforcement layers which are stacked along the height direction of the reinforcement part; one side of the first reinforcement layer, which is close to the old dam body 8, is connected with the old dam body 8 through a traction piece; the traction piece comprises a steel floral tube 7 and a steel tube 6, wherein one end of the steel floral tube 7 is inserted into the old dam body 8, and the other end of the steel floral tube extends out of the old dam body 8 and is connected with the steel tube 6; the axial direction of the steel pipe 6 is perpendicular to the axial direction of the steel flower pipe 7; the first reinforced layer comprises reinforced geotextile 2 and mould bag solidified soil 1, wherein one end of the reinforced geotextile 2 is pressed between the upper mould bag solidified soil 1 and the lower mould bag solidified soil 1, the other end of the reinforced geotextile extends horizontally, bypasses the steel pipe 6 downwards and then extends horizontally reversely, and is pressed between the upper mould bag solidified soil 1 and the lower mould bag solidified soil 1; the mould bag solidified soil 1 is wrapped in reinforced geotextile 2 positioned on an upper layer and a lower layer, and the heightening part comprises a plurality of second reinforced layers which are stacked along the height direction of the heightening part; the second reinforced layer comprises reinforced geotextile 2 and mould bag solidified soil 1, wherein,
the mould bag solidified soil 1 consists of concentrated sludge, sulphoaluminate cement and fly ash solidified soil and is a main filling of a new dam 9. The compressive strength of the solidified soil 28d is far more than 300kPa, so that the requirement of landfill strength is met;
the reinforced geotextile 2 is an engineering material for reinforcing a solidified soil body with long-term design life, has the characteristics of corrosion resistance, chemical resistance and good water permeability, and not only ensures the stability of the solidified soil body, but also plays a role in reverse filtration and isolation (a landfill leachate can erode a dam body). Under the action of the tension of soil nails, the upper layer and the lower layer of reinforced geotextile 2 can tightly clamp the mould bag solidified soil 1 filled in the middle, so that the integrity of the new dam is more stable, and the connection effect between the new dam body and the old dam body can be enhanced;
the reinforced concrete 11 is arranged around the mould bag solidified soil 1 dam body of the new dam, C30 concrete and the steel bars at the other end of the reinforced geotextile 2 are poured together (the dam is not provided with the old dam last time, and the steel bars at the two ends of the reinforced geotextile 2 are poured together with the reinforced concrete 11), so that the reinforced geotextile 2 can tightly wrap the mould bag solidified soil 1, and the new and old dam bodies form a stable whole;
the steel pipe 6 is welded on soil nails (namely steel flower pipes 7) and is used for pulling the upper layer of reinforced geotechnical cloth 2 and the lower layer of reinforced geotechnical cloth 2, and the pipe length direction of the steel pipe 6 is consistent with the trend of a dam body;
the diameter of the steel flowtube 7 is 75mm, the wall thickness is 5mm, the spacing between the grout outlet holes 701 is 300mm, and barb-shaped angle steels 702 are welded at the grout outlet holes 701, so that the grout outlet holes 701 are prevented from being blocked, and the anti-skid capability of the steel flowtube 7 is improved; drilling holes in the old dam body 8, driving steel flowtube 7, grouting, injecting cement mortar into soil around the pipe body through grouting holes in the pipe wall, solidifying the soil and forming an anchor body, and firmly anchoring the grouted steel flowtube 7 in the dam body to provide certain anchoring and anti-slip effects and strengthen the connection of the new and old dam bodies 8; further, stiffening ribs 703 are provided in the steel pipe 7.
The following is a specific construction case:
referring to fig. 1 to 3, the construction method of the constructed garbage dam by using the geotechnical reinforced molding bag solidified soil of the utility model comprises the following steps:
s1, reinforcing a new dam foundation before a new dam body 9 is constructed, and using soil, stones and concrete materials as the new dam foundation to ensure enough bearing capacity; before filling a new dam 9, positioning and drilling holes are needed to be formed in the old dam 8 according to the design requirement of paving reinforced geotechnical cloth 2, soil nails are driven into the old dam 8 after grouting holes are drilled, then at least 3 stiffening ribs 703 with the diameter of 6mm are splice welded at joints of the soil nails, and grouting is performed for solidification; the soil nails are steel flower pipes 7, the diameter of each steel flower pipe 7 is 75mm, and the wall thickness is not less than 5mm; barb-shaped angle steel 702 is welded at the position of the grout outlet 701 to prevent the grout outlet 701 from being blocked, in addition, the pitch of the grout outlet 702 is generally 200-500 mm, the diameter is 7-10 mm, and a steel pipe 6 is welded at the outer side of the steel pipe 7 and used for pulling the reinforced geotextile 2.
S2, the new dam body is filled and tamped into a dam in a layered mode by using the mold bag solidified soil 1, the reinforced geotextile 2 is covered on the new dam foundation before the first layer of mold bag solidified soil 1 is filled, after the two layers of mold bag solidified soil 1 are continuously filled, the reinforced geotextile 2 is covered on the top surface of the mold bag solidified soil 1 again after the two layers of mold bag solidified soil 1 are filled and tamped, the reinforced steel bars of the upper layer of reinforced geotextile 2 and the lower layer of reinforced geotextile 2 are connected with soil nails arranged on the slope surface of the old dam body 8, and the soil nails pull the reinforced geotextile 2 so as to promote the mold bag solidified soil 1 not to be separated due to lateral pressure, so that the new dam body 9 and the old dam body 8 form a stable whole and have enough lateral pressure resistance.
S3, taking two layers of mould bag solidified soil 1 and upper and lower layers of reinforced geotextile 2 as a small structure, rolling the edge of the lower layer of reinforced geotextile 2 until the other side of the mould bag solidified soil 1 is pressed by the mould bag solidified soil 1, and rolling the edge of the upper layer of reinforced geotextile 2 downwards to wrap the mould bag solidified soil 1, so that the upper and lower layers of reinforced geotextile 2 can clamp the mould bag solidified soil 1, thereby further enhancing the integrity of the new dam filling mould bag and enhancing the connection effect between the new and old dam bodies 8; each layer of reinforced geotextile 2 needs to be fixed on the mould bag solidified soil 1 by using the fixed nails 5 so as to play a role of fixed connection.
S4, when filling the dam body, after each time two layers of mould bags are filled with solidified soil 1 and the reinforced geotextile 2 is laid, the reinforced bars of the reinforced geotextile 2 on the upper layer and the lower layer of the new dam body 9 are fixedly connected with the fixed steel pipes 6 on the old dam body 8 by adopting electric welding, and the reinforced geotextile 2 is tensioned by soil nails so as to enhance the connection effect between the extension dam and the old dam body 8.
S5, after filling the mould bag solidified soil 1, arranging a circle of reinforced concrete dam body (embedded bars 12 and woven net 13 are arranged in the reinforced concrete dam body) with the thickness of 200mm around the mould bag solidified soil 1 of the new dam body 9, connecting the reinforced concrete dam body with the reinforced geotextile 2 (pouring and filling together with the bars in the reinforced geotextile 2), enabling the reinforced geotextile 2 to be stable enough, and then spraying a layer of straw-pulp mixture 14 with the thickness of 150mm outside the reinforced concrete dam body.
In the process, the standard size of the adopted mould bags is 1m multiplied by 0.5m (length multiplied by width multiplied by height), and the mould bags with different sizes are required to be arranged according to the filling length of each layer because the slope setting requirement is required for the dam to be constructed, so that the tight connection of the mould bags is ensured; and because the holes are inevitably formed between the mould bags, a layer of sandy cohesive soil 10 is paved above and below each layer of mould bag solidified soil 1 to fill the holes.
In the embodiment, the adopted mould bag solidified soil 1 is sulphoaluminate cement-fly ash-concentrated solution sludge solidified soil, the sulphoaluminate cement type is R.SAC42.5, the fly ash is taken from a garbage incineration power plant, the concentrated solution sludge is taken from a household garbage sanitary landfill, and the chemical composition is shown in the table 1. The adopted mould bag solidified soil 1 is formed by mixing the sludge solidified soil formed by mixing concentrated sludge, sulphoaluminate cement and fly ash according to the mass ratio of 1:0.4:0.1, and solidifying for 28 d.
TABLE 1 composition of sulfoaluminate Cement, fly ash, concentrate sludge elements
Because the dam body adopts the concentrated liquid sludge-sulphoaluminate cement-fly ash solidified body mold bags, on one hand, the use of concrete resources in the earthwork is reduced, and on the other hand, the sludge and solid wastes are fully utilized, thereby realizing the recycling of toxic and harmful wastes and the reduction of nonrenewable filling materials, and being economical and environment-friendly.
In addition, concentrated liquid sludge, sulphoaluminate cement and fly ash are used as geotechnical mould bag solidified body materials to expand a dam of a landfill, so that on one hand, the storage capacity of the landfill can be enlarged, on the other hand, sludge and solid waste can be effectively utilized, and the purposes of energy conservation and environmental protection of recycling toxic and harmful waste and reducing nonrenewable filling materials are achieved.
The foregoing is illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various changes, modifications, substitutions, combinations, and simplifications which may be made therein without departing from the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. A kind of rubbishes dam of building of the solidified soil of the reinforcement mould bag of utilizing geotechnique, is used for strengthening and building the old dam body, including strengthening the portion and heightening the portion, wherein, the said strengthening portion is connected with sidewall of the said old dam body, the said heightening the portion is set up on top surfaces of the said strengthening portion and said old dam body; the reinforcement part comprises a plurality of first reinforcement layers which are stacked along the height direction of the reinforcement part; one side, close to the old dam body, of the first reinforcement layer is connected with the old dam body through a traction piece; it is characterized in that the method comprises the steps of,
the traction piece comprises a steel floral tube and a steel tube; one end of the steel flowtube is inserted into the old dam body, and the other end of the steel flowtube extends out of the old dam body and is connected with the steel tube; the axial direction of the steel pipe is perpendicular to the axial direction of the steel flower pipe; the first reinforcement layer comprises reinforcement geotextile and mould bag solidified soil; one end of the reinforced geotextile is pressed between the solidified soil of the upper layer of mould bags and the lower layer of mould bags, the other end of the reinforced geotextile extends horizontally, bypasses the steel pipe downwards, extends horizontally reversely, and is pressed between the solidified soil of the upper layer of mould bags and the lower layer of mould bags; the mould bag solidified soil is wrapped in the reinforced geotextile positioned on the upper layer and the lower layer.
2. The rubbish dam for the construction using the geotechnical reinforcement molding bag solidified soil according to claim 1, wherein grouting holes are arranged in the circumferential direction of the steel flowtube, the grouting holes are arranged along the axial direction of the steel flowtube, and grouting channels communicated with the grouting holes are arranged in the steel flowtube.
3. The constructed waste dam using geotechnical reinforcement matrix bag solidified soil of claim 2, wherein the diameter of the steel flowtube is 75mm and the wall thickness is not less than 5mm; barb angle steel is welded at the slurry outlet.
4. A constructed waste dam using geotechnical reinforced plastic bags solidified soil according to claim 3, wherein the pitch of the grout outlet holes is 200-500 mm and the diameter is 7-10 mm.
5. A refuse dam constructed using geotechnical reinforcement matrix bag solidified soil as in claim 3 wherein the matrix bag solidified soil in the geotechnical reinforcement cloth is two layers vertically stacked and arranged in sequence along the extending direction of the geotechnical reinforcement cloth.
6. A constructed waste dam utilizing geotechnical reinforced molded bag solidified soil as claimed in claim 3 wherein said upper and lower layers of reinforced geotechnical cloth are secured to said molded bag solidified soil by means of securing studs.
7. The refuse dam according to claim 3, wherein the reinforcing bars in the upper and lower layers of reinforced geotextiles are connected and fixed to the steel pipes fixed to the old dam body by means of electric welding.
8. The constructed waste dam using geotechnical reinforcement molding bags for solidifying soil according to claim 1, wherein the elevated portion comprises a plurality of second reinforcement layers stacked in a height direction of the elevated portion; the second reinforcement layer comprises reinforcement geotextile and mold bag solidified soil.
9. The method of constructing a rubbish dam utilizing geotechnical reinforcement matrix bag solidified soil of claim 3 further comprising a reinforced concrete dam body disposed outboard of the reinforcing portion and the raised portion, wherein the reinforced concrete dam body is connected to an end of the geotechnical reinforcement cloth.
10. The method of claim 5, wherein each layer of cured soil is filled with a layer of sandy clay soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613811.XU CN220246997U (en) | 2023-06-25 | 2023-06-25 | Utilize geotechnique to add extension rubbish dam of muscle mould bag solidification soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613811.XU CN220246997U (en) | 2023-06-25 | 2023-06-25 | Utilize geotechnique to add extension rubbish dam of muscle mould bag solidification soil |
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| CN220246997U true CN220246997U (en) | 2023-12-26 |
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| CN202321613811.XU Active CN220246997U (en) | 2023-06-25 | 2023-06-25 | Utilize geotechnique to add extension rubbish dam of muscle mould bag solidification soil |
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| Country | Link |
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| CN (1) | CN220246997U (en) |
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2023
- 2023-06-25 CN CN202321613811.XU patent/CN220246997U/en active Active
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