CN111535289A - Foundation treatment method considering waste tire recycling - Google Patents
Foundation treatment method considering waste tire recycling Download PDFInfo
- Publication number
- CN111535289A CN111535289A CN202010323643.5A CN202010323643A CN111535289A CN 111535289 A CN111535289 A CN 111535289A CN 202010323643 A CN202010323643 A CN 202010323643A CN 111535289 A CN111535289 A CN 111535289A
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- Prior art keywords
- waste
- waste tires
- tires
- foundation treatment
- foundation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Abstract
The invention belongs to the technical field of composite foundations, and discloses a foundation treatment method considering recycling of waste tires.A permeable and sand-impermeable semi-permeable geotextile is laid in a foundation treatment area; then uniformly laying waste tires arranged at intervals on the semi-permeable geotextile, wherein the treads of the waste tires are substantially vertical to the foundation; then filling a particle filler in each waste tire; finally, filling granular fillers between the waste tires and paving a mattress layer on the waste tires. According to the invention, the mechanical strength of the waste tire per se is utilized to generate a lateral limitation effect on the internal particle filler, so that the internal particle filler can show higher rigidity than surrounding unconfined soil under the action of working load, the effect of improving the bearing capacity and rigidity of the foundation is achieved, and the operation is simple and rapid; and because the waste tires are directly utilized, compared with most of the existing foundation treatment methods which need to input cement and mechanical equipment, the construction cost and time are saved, and the recycling rate of the waste tires is improved.
Description
Technical Field
The invention belongs to the technical field of composite foundations, and particularly relates to a foundation treatment method for solid waste utilization.
Background
China is a world wide tire production country, and the quantity of waste tires produced every year is huge. These rubber tires are difficult to degrade and if merely thrown away as garbage, they are not only environmentally harmful but also a waste of resources. At present, the recycling of waste tires in China mainly comprises the following steps: the tire with lower abrasion degree can be used for retreading and repairing, and the tire with higher abrasion degree is generally ground into rubber powder or rubber particles or processed into rubber products such as steel cord fabrics. For the waste tires with higher abrasion degree, no matter the waste tires are ground into rubber powder/particles or processed into rubber products, a large amount of processing is carried out and the rubber products cannot be directly used, so that the recycling cost of the waste rubber is increased. In addition, the recycling rate of the waste tires in China is to be improved compared with that of developed countries, a considerable proportion of the waste tires are not effectively recycled, and thus, the recycling of the waste tires in China has a larger improvement space.
The foundation treatment is a technical means for improving the bearing capacity and deformation property of soft foundation soil by adopting engineering technical measures. The foundation treatment measures mainly adopted at present include a cushion method, a drainage consolidation method, a deep cement stirring method, a high-pressure jet grouting method, a dynamic compaction method and a vibroflotation method. The methods have advantages, but all the foundation treatment methods hope to save the construction period and reduce the cost as much as possible on the basis of ensuring the engineering effect of the foundation treatment.
Disclosure of Invention
The invention aims to solve the technical problems that the recycling rate of the waste tires is not high and the recycling mode is not economical at present in China, and the existing soft foundation soil treatment method is difficult to save the construction period and reduce the cost on the basis of ensuring the foundation treatment engineering effect, so that the invention provides the foundation treatment method which gives consideration to the recycling of the waste tires; and because the waste tires are directly utilized, compared with most of the existing foundation treatment methods which need to input cement and mechanical equipment, the construction cost and time are saved, and the recycling rate of the waste tires is improved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a foundation treatment method considering waste tire recycling comprises the following steps:
(1) paving permeable and sand-impermeable semi-permeable geotextile on soft foundation soil in a foundation treatment area;
(2) uniformly and horizontally laying a plurality of waste tires on the semi-permeable geotextile, wherein the waste tires are arranged at intervals;
(3) filling a particle filler in each waste tire;
(4) and backfilling particle fillers among the waste tires.
Further, the particle filler is at least one of sand, broken stone, construction waste recycled aggregate and slag.
Further, the shortest distance between adjacent junked tires is not greater than the tread width of the junked tires.
Furthermore, a cross-shaped pull belt is fixed on the upper surface of the waste tire.
Furthermore, a cross-shaped pull belt is fixed on the lower surface of the waste tire.
Furthermore, the cross-shaped drawstring is fixed to the waste tire in a sewing, bonding or anchoring mode.
Further, a mattress layer is laid on the waste tire after the step (4).
The invention has the beneficial effects that:
the invention relates to a foundation treatment method considering recycling of waste tires, which comprises the steps of firstly paving semi-permeable geotextile, then placing the waste tires at designed positions and filling the interiors of the waste tires with particle fillers, wherein the particle fillers can deform under the action of working load; finally, particle filling is backfilled among the waste tires, so that the stress of the treated foundation is more uniform; and a mattress layer can be uniformly laid on the top of the waste tire.
Compared with the existing cushion method in foundation treatment, the method of the invention can better ensure the bearing capacity and rigidity of the foundation soil on the premise of basically unchanged manufacturing cost. Compared with other methods in the existing foundation treatment, the method of the invention can avoid the use of cement and large machinery under the condition of ensuring the bearing capacity and rigidity of the foundation soil, simplify the construction steps, save the construction period and reduce the cost.
In addition, the method of the invention also directly recycles a large amount of waste tires, not only makes full use of the strength of the tires, but also reduces the secondary processing of the waste tires, reduces the recycling cost and improves the recycling rate.
Drawings
FIG. 1 is a construction flow chart of a foundation treatment method according to the present embodiment;
fig. 2 is a schematic view of geotextile laying in the foundation treatment method provided in this embodiment;
FIG. 3 is a schematic view of a used tire fixing crisscross drawstring according to the foundation treatment method of the present embodiment;
FIG. 4 is a schematic view of a waste tire laying process of the foundation treatment method according to the present embodiment;
FIG. 5 is a schematic view of the inside of the foundation treatment method according to the present embodiment filled with the particulate filler;
FIG. 6 is a schematic view of the loading of the waste tires and the particulate filler under the working load according to the foundation treatment method of this embodiment;
fig. 7 is a schematic diagram of the backfilling of the waste tire inter-and top mattress layer granule filler in the foundation treatment method provided in this embodiment.
In the above figures: 1-soft foundation soil; 2-semi-permeable geotextile; 3-waste tires; 4-a cross-shaped drawstring; 5-a particulate filler; 6-pulling force of a cross-shaped pull belt; 7-side pressure limit.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
the embodiment provides a foundation treatment method considering waste tire recycling, waste tires 3 are applied to foundation treatment engineering, and the method can avoid the use of cement and large machinery under the condition of ensuring the bearing capacity and rigidity of foundation soil, simplify construction steps, save construction period and reduce cost.
As shown in figure 1, the construction steps of the method mainly comprise the steps of laying the geotextile 2, laying the waste tires 3, filling the particle fillers 5 in the waste tires 3 and backfilling the particle fillers 5 among the waste tires 3.
As shown in fig. 2, a semi-permeable geotextile 2 is first uniformly laid on the soft foundation soil 1 of the foundation treatment area, and the semi-permeable geotextile 2 is made of a geotextile material which is permeable to water and impermeable to sand. Under operating condition, certain subsidence takes place for granule filler 5 inside junked tire 3 can receive the work load influence, and half permeable geotechnological cloth 2 can permeate water and can not pass through sand, and it can guarantee that the inside granule filler 5 of structure can not run off, guarantees the structure wholeness.
As shown in fig. 3, the junked tire 3 is used as a main body of the reinforcement structure of the foundation, and cross-shaped drawstrings 4 are sewn to the upper surface and the lower surface of the junked tire 3 in a flat state where the junked tire 3 is substantially perpendicular to the foundation. The cross-shaped drawstring 4 can be fixed on the waste tyre 3 by sewing, bonding or anchoring.
After the semi-permeable geotextile 2 is laid, the waste tires 3 fixed with the cross-shaped draw tapes 4 shown in the figure 3 are evenly laid on the semi-permeable geotextile 2 according to a certain rule, and the waste tires 3 are laid in the direction that the tire surfaces are approximately vertical to the foundation. The junked tires 3 are densely and alternately laid, the junked tires 3 are not in contact with each other, but the minimum distance between the junked tires 3 is generally not larger than the tread width of the junked tires 3, so that the junked tires 3 and the particle fillers 5 inside the junked tires 3 can develop certain lateral displacement.
As shown in fig. 5, a particulate filler 5 is filled in each junked tire 3, and the particulate filler 5 is a mixture of one or more of sand, crushed stone, construction waste recycled aggregate, and slag. As shown in fig. 6, under the action of a working load, the particle fillers 5 inside the waste tires 3 tend to generate lateral displacement due to stress, and the presence of the waste tires 3 can generate a restraining effect on the lateral displacement, which is represented by a lateral limit pressure 7 generated by the waste tires 3 and a cross-shaped drawstring tension 6 generated in the cross-shaped drawstring 4 respectively.
As shown in fig. 7, finally, the particle fillers 5 are filled between the waste tires 3 and the top mattress layer, and the particle fillers 5 are filled between the waste tires 3, so that the stress of the treated foundation is more uniform.
The bearing capacity and the compressive rigidity of the particle filler 5 in the waste tire 3 under the action of working load are higher than those of the particle filler 5 between the soft foundation soil 1 and the waste tire 3 in the foundation reinforcing structure.
Compared with the common foundation treatment process, the construction process involved in the method avoids the use of cement and large-scale machinery, and the operation of each step is simple. Meanwhile, the waste tires 3 playing an important role in the method also improve the recycling rate of the solid wastes. Therefore, the foundation treatment method considering waste tire recycling can improve the recycling rate of the waste tire 3, simplify construction on the premise of ensuring engineering quality, reduce cost and shorten construction period.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make various changes and modifications within the spirit and scope of the present invention without departing from the spirit and scope of the appended claims.
Claims (7)
1. A foundation treatment method considering waste tire recycling is characterized by comprising the following steps:
(1) paving permeable and sand-impermeable semi-permeable geotextile on soft foundation soil in a foundation treatment area;
(2) uniformly and horizontally laying a plurality of waste tires on the semi-permeable geotextile, wherein the waste tires are arranged at intervals;
(3) filling a particle filler in each waste tire;
(4) and backfilling particle fillers among the waste tires.
2. The method for foundation treatment with consideration of recycling of waste tires according to claim 1, wherein the particulate filler is at least one of sand, crushed stone, construction waste recycled aggregate and slag.
3. The method for foundation treatment with consideration of recycling of junked tires according to claim 1, wherein the shortest distance between adjacent junked tires is not more than the tread width of the junked tires.
4. The foundation treatment method considering waste tire recycling according to claim 1, wherein a cross-shaped drawstring is fixed on the upper surface of the waste tire.
5. The foundation treatment method considering waste tire recycling according to claim 1, wherein a cross-shaped drawstring is fixed on the lower surface of the waste tire.
6. The foundation treatment method considering the recycling of waste tires according to claim 4 or 5, characterized in that the cross-shaped drawstring is fixed to the waste tires by sewing, bonding or anchoring.
7. The method for foundation treatment with consideration of recycling of waste tires according to claim 1, characterized in that a mattress layer is laid on the waste tires after the step (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323643.5A CN111535289A (en) | 2020-04-22 | 2020-04-22 | Foundation treatment method considering waste tire recycling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323643.5A CN111535289A (en) | 2020-04-22 | 2020-04-22 | Foundation treatment method considering waste tire recycling |
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| CN111535289A true CN111535289A (en) | 2020-08-14 |
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| CN202010323643.5A Pending CN111535289A (en) | 2020-04-22 | 2020-04-22 | Foundation treatment method considering waste tire recycling |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314964A (en) * | 1998-08-06 | 2001-09-26 | 澳大利亚埃科夫莱克斯有限公司 | Tyre foundation structure |
| CN201169733Y (en) * | 2008-03-13 | 2008-12-24 | 上海交通大学 | Tire lattice structure for reinforcing embankment |
| JP2010043442A (en) * | 2008-08-11 | 2010-02-25 | Bridgestone Corp | Normal surface protecting construction method |
| CN205259204U (en) * | 2015-11-23 | 2016-05-25 | 湖北工业大学 | Two -way grid of junked tire - adds muscle and building rubbish combination environmental protection antidetonation ground |
-
2020
- 2020-04-22 CN CN202010323643.5A patent/CN111535289A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314964A (en) * | 1998-08-06 | 2001-09-26 | 澳大利亚埃科夫莱克斯有限公司 | Tyre foundation structure |
| CN201169733Y (en) * | 2008-03-13 | 2008-12-24 | 上海交通大学 | Tire lattice structure for reinforcing embankment |
| JP2010043442A (en) * | 2008-08-11 | 2010-02-25 | Bridgestone Corp | Normal surface protecting construction method |
| CN205259204U (en) * | 2015-11-23 | 2016-05-25 | 湖北工业大学 | Two -way grid of junked tire - adds muscle and building rubbish combination environmental protection antidetonation ground |
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Application publication date: 20200814 |