CN103711053A - Composite reinforced roadbed and construction method - Google Patents
Composite reinforced roadbed and construction method Download PDFInfo
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- CN103711053A CN103711053A CN201410021123.3A CN201410021123A CN103711053A CN 103711053 A CN103711053 A CN 103711053A CN 201410021123 A CN201410021123 A CN 201410021123A CN 103711053 A CN103711053 A CN 103711053A
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Abstract
The invention discloses a composite reinforced roadbed and a construction method. The composite reinforced roadbed comprises water-permeable concrete piles, waste tires, connection pieces and gravels, wherein the water-permeable concrete piles are sequentially poured to peaks of triangles according to the shapes of equilateral triangles; each longitudinally cut waste tire is fixed on a steel bar of each water-permeable concrete pile; the water-permeable concrete piles are connected through the connection pieces in sequence and are buried on the roadbed; the equilateral triangles and the tires are filled with the gravels; the structure is filled with the soil roadbed. According to the composite reinforced roadbed, the waste tires are arranged at the bottom of the roadbed and replace part of the soil body; compared with the friction force in the soil body, the friction force between the soil body and the waste tires or the friction force caused by indirect contact between the gravels and the tires is obviously increased; in spite of cohesive soil or non-cohesive soil, the cohesive force of the soil body or the inner friction angle of the soil body can be increased; the stability of a slope of the roadbed is improved.
Description
Technical field
The present invention relates to highway construction field, relate in particular to a kind of composite consolidation roadbed and construction method.
Background technology
In recent years, along with people's living standard progressively improves and logistics high speed development, the private car recoverable amount of China and the quantity of lorry improve year by year.The increase of vehicle fleet size has driven expanding economy, and the consumption of doughnut simultaneously and wearing and tearing have also produced a lot of rubbish---junked tire, the living environment that " black pollution " that increasing junked tire forms threatening the whole mankind.At present, the way using junked tire as resource recycling is many, and the main path of recycling has: heat energy utilization, thermal decomposition, production reclaimed rubber etc., wherein, the application of junked tire in road construction is the emphasis of various countries' research and application.On the other hand, in the higher area of some groundwater table (region of no relief as general in Huang), subgrade soils easily water suction is softening, cause subgrade strength that violent decay occurs, under the comprehensive function of vehicle heavy duty and water, very easily there are all kinds of diseases in roadbed, as subgrade settlement, slope erosion coombe, crevice of roadbed or slip collapse, that roadbed pitfall or dark hole, end of the bridge protect cone punching is empty or cave in etc., has a strong impact on safety and the comfortableness of road.
Summary of the invention
The present invention, in order to address the above problem, proposes a kind of composite consolidation roadbed and construction method, contributes to alleviate " black pollution " problem that junked tire brings, and by waste recovery recycling, plays the effect of protection of the environment.In addition, by permeable concrete stake, junked tire and rubble comprehensive utilization, effectively prevent roadbed side slope slump, improve the stability of roadbed.
To achieve these goals, the present invention adopts following technical scheme:
A kind of composite consolidation roadbed, comprise permeable concrete stake, junked tire, connector and rubble, permeable concrete stake is built in vertex of a triangle successively by the shape of equilateral triangle, the reinforcing bar of each permeable concrete stake is fixed a junked tire longitudinally cutting, permeable concrete stake connects, is embedded on ground by connector successively, inner and the wheel tyre cavity of equilateral triangle is filled with rubble, and said structure has filled on it earth roadbed.
Described connector is prepared from by resistant material.
A construction method that adopts above-mentioned subgrade structure, the steps include:
(1) with drill hole of drilling machine clear hole, equilateral triangle is held in the position in hole, pitch-row 1.2～1.8m; Junked tire longitudinally being cut open, formed peviform, prefabricated connector is cut into mono-section of 2.2m, is connection basin type tire used, will
reinforcing bar be cut into mono-section of 1.5m, with transport vehicle, transport rubble to scene, in order to using;
(2) in the hole of having bored, build permeable concrete, stake is long can be determined according to actual conditions, while building pile body top, reinforcing bar is implanted to permeable concrete stake, the concrete pile of the having built 0.5m that is above the ground level, and by the Partial Resection being above the ground level, the reinforcing bar length after excision in pile body is about 1m, the reinforcing bar length of stretching out pile body is not less than 0.4m, afterwards grade;
(3) junked tire of longitudinally cutting open is arranged in directly over permeable concrete stake, makes reserved steel bar pass tire hole, reserved steel bar is bent up, hold tire, the banded connector made from pvc material couples together the colligation of peviform tire;
(4) rubble is filled between peviform tire and tire in, rubble filled height, higher than the height 1-5cm of the half of tire of basin shape, will note protecting the connector between tire while filling rubble;
(5) after rolling compacting, fill earth roadbed.
Operating principle of the present invention:
(1) reinforcement performance
1. ground stabilization
Permeable concrete is the porous concrete of being made with technique in specific proportions by the gathering materials of specific grating, cement, Admixture, reinforcing agent and water etc.By permeable concrete, build the pile body forming and there is higher intensity, can effectively reduce horizontal movement and the vertical displacement of ground, ground has been played to good reinforcement effect.
2. slope reinforcement
The slip safety factor of roadbed side slope is relevant with the shear strength of the soil body, the shear strength of the soil body
for the angle of internal friction of the soil body, cohesion, normal stress, angle of internal friction are larger, and shear strength is larger, and the safety factor of sliding is just larger, and slight slope is just more stable.
For increasing the slip safety factor of slight slope, most of engineerings are used geo-grid, increase skid resistance and the resisting moment of the soil body.The utility model is used and connects webbed junked tire replacement geo-grid, tire anti-corrosion capability is strong, anti-aging, tire estimate at least 200 years life-spans, its in length and breadth direction all have stronger supporting capacity, and the interaction between soil particle is strong, can bring into play at short notice reinforced action, strengthen the overall performance of the soil body.
Connecting webbed basin type one side of something, take turns the deficiency that tyre bead soil body principal strain directions lays to make up soil shear strength, the reason that tensile strength strengthens comes from the interaction of tire and the soil body, tire and permeable concrete stake, connecting webbed tire is laid in the soil body according to certain angle, can fully retrain the lateral displacement of soil particle, thereby increase widely the self-support stability of the soil body.
Junked tire is arranged in to roadbed bottom to be equivalent to the part soil body and to be substituted, and frictional force between the soil body and junked tire or the frictional force by rubble and tire mediate contact enlarge markedly than the frictional force of inside soil body, no matter for cohesive soil, be also non-cohesive soil, all, as the cohesion or the angle of internal friction that have increased the soil body, improved the stability of roadbed side slope.
(2) drainage performance
Permeable concrete stake and the synergy of rubble drainage blanket can be played good drainage effect, under the impact of underground water and pore water pressure, existence due to permeable concrete stake, most of water rises to drainage blanket by the perforation hole along in pile body, most of water will go out roadbed along drainage blanket transverse row afterwards, only have small part to see through upwards infiltration of bed course, therefore water content reduces a lot while having hardcore bed time channel basal part water content ratio without hardcore bed.Under permeable concrete stake and the synergy of rubble drainage blanket, the intensity of ground and roadbed, stability and bearing capacity can obtain larger raising.
The punishment measure of permeable concrete stake, junked tire and rubble being combined to use can make ground and subgrade rating significantly improve, and improves resistance to shear of soil environment, effectively reduces settling amount.
Beneficial effect of the present invention is:
1, junked tire being arranged in to roadbed bottom is equivalent to the part soil body and is substituted, and frictional force between the soil body and junked tire or the frictional force by rubble and tire mediate contact enlarge markedly than the frictional force of inside soil body, no matter for cohesive soil, be also non-cohesive soil, all, as the cohesion or the angle of internal friction that have increased the soil body, improved the stability of roadbed side slope;
2, permeable concrete stake-junked tire-rubble roadbed punishment measure can make subgrade rating significantly improve, and improves resistance to shear of soil environment, effectively reduces settling amount;
3, by waste recovery recycling, protection of the environment.
Accompanying drawing explanation
Fig. 1 is structural representation top view of the present invention;
Fig. 2 is reinforcing road bed schematic cross-sectional view of the present invention.
Wherein, 1, rubble; 2, junked tire, 3, connector, 4, reinforcing bar, 5, permeable concrete stake, 6, ground; 7, roadbed.
The specific embodiment:
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, a kind of composite consolidation roadbed, comprise permeable concrete stake 5, junked tire 2, connector 3 and rubble 1, permeable concrete stake 5 is built in vertex of a triangle successively by the shape of equilateral triangle, the reinforcing bar 4 of each permeable concrete stake 5 is fixed a junked tire 2 longitudinally cutting, permeable concrete stake 5 is connected, is embedded on ground 6 by connector 4 successively, and the inner and wheel tyre cavity of equilateral triangle is filled with rubble 1, and said structure has filled roadbed 7 on it.
A construction method that adopts above-mentioned subgrade structure, the steps include:
(1) with drill hole of drilling machine clear hole, equilateral triangle is held in the position in hole, pitch-row 1.2～1.8m; Junked tire 2 longitudinally being cut open, formed peviform, prefabricated connector is cut into mono-section of 2.2m, is connection basin type tire used, will
reinforcing bar be cut into mono-section of 1.5m, transport rubble 1 use transport vehicle to scene, in order to using;
(2) in the hole of having bored, build permeable concrete, stake is long can be determined according to actual conditions, while building pile body top, reinforcing bar is implanted to permeable concrete stake 5, the concrete pile 5 of the having built 0.5m that is above the ground level, and by the Partial Resection being above the ground level, reinforcing bar 4 length after excision in pile body are about 1m, reinforcing bar 4 length of stretching out pile body are not less than 0.4m, afterwards grade;
(3) junked tire of longitudinally cutting open 2 is arranged in directly over permeable concrete stake 5, make reserved steel bar 4 through tire hole, reserved steel bar 4 is bent up, hold tire, the banded connector 3 made from pvc material couples together the colligation of peviform tire, as shown in Figure 1;
(4) rubble 1 is filled between peviform tire and tire in, rubble 1 filled height, higher than the height 1-5cm of the half of tire of basin shape, will note protecting the connector 3 between tire while filling rubble 1;
(5) after rolling compacting, fill earth roadbed 7, after completing as shown in Figure 2.
Operating principle of the present invention:
(1) reinforcement performance
1. ground stabilization
Permeable concrete is the porous concrete of being made with technique in specific proportions by the gathering materials of specific grating, cement, Admixture, reinforcing agent and water etc.By permeable concrete, build the pile body forming and there is higher intensity, can effectively reduce horizontal movement and the vertical displacement of ground, ground 6 has been played to good reinforcement effect.
2. slope reinforcement
The slip safety factor of roadbed 7 side slopes is relevant with the shear strength of the soil body, the shear strength of the soil body
for the angle of internal friction of the soil body, cohesion, normal stress, angle of internal friction are larger, and shear strength is larger, and the safety factor of sliding is just larger, and slight slope is just more stable.
For increasing the slip safety factor of slight slope, most of engineerings are used geo-grid, increase skid resistance and the resisting moment of the soil body.The present invention uses and connects webbed junked tire 2 replacement geo-grid, tire anti-corrosion capability is strong, anti-aging, tire estimate at least 200 years life-spans, its in length and breadth direction all have stronger supporting capacity, and the interaction between soil particle is strong, can bring into play at short notice reinforced action, strengthen the overall performance of the soil body.
Connecting webbed basin type one side of something, take turns the deficiency that tyre bead soil body principal strain directions lays to make up soil shear strength, the reason that tensile strength strengthens comes from the interaction of tire and the soil body, tire and permeable concrete stake 5, connecting webbed tire is laid in the soil body according to certain angle, can fully retrain the lateral displacement of soil particle, thereby increase widely the self-support stability of the soil body.
(2) drainage performance
The punishment measure of permeable concrete stake 5, junked tire 2 and rubble 1 being combined to use can make ground 6 and roadbed 7 bearing capacities significantly improve, and improves resistance to shear of soil environment, effectively reduces settling amount.
Example one:
Qing Lin road contract section to control sedimentation, reduces the harm of jumping car, its road foundation height mark 6.5m with which punishment culvert ground and roadbed, permeable concrete stake diameter 0.5m, lower long 8m of culvert, roadbed is partly punished length 30m, divide A, B, C 3rd district, every district 10m, the long 11m of A district stake, the long 9m of B district stake, the long 7m of C district stake, arranges pilespacing 1.8m by equilateral triangle, tire is arranged in permeable concrete stake top, and rubble filled height 20cm(tire and rubble are only arranged in roadbed part).Punishment result shows, after culvert, roadbed are completed 3 years, culvert settlement after construction 4.1cm, with the relative settlement of end of the bridge be 1.8cm, under heavy rain and heavy traffic load impact, the boundless hill wash phenomenon of collapsing, on hardcore bed, roadbed partially aqueous amount is lower.This shows, this punishment measure plays a good role in the reinforcing of culvert location place ground and roadbed and draining, has improved the stability of ground and roadbed.
Example two:
In Shandong, provincial highway S336 contract section is punished Bridgehead by Blastig by which, to reduce the harm of bumping at bridge-head, and this section road foundation height mark 5.5m, permeable concrete stake diameter 0.5m, roadbed punishment length 30m, minute A, B, C 3rd district, every district 10m, the long 10m of A district stake, the long 8m of B district stake, the long 6m of C district stake, pressing equilateral triangle arranges, pilespacing 1.5m, tire is arranged in permeable concrete stake top, rubble filled height 25cm.Punishment result shows, highway operation is after 5 years, and the relative settlement of end of the bridge and roadbed is 1.5cm, under heavy rain and heavy traffic load impact, and the boundless hill wash phenomenon of collapsing, on hardcore bed, roadbed is partly obviously on the low side than lower part water content.This shows, this measure plays a good role weakening on problem of bumping at bridge-head, has improved the stability of roadbed side slope.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (3)
1. a composite consolidation roadbed, it is characterized in that: comprise permeable concrete stake, junked tire, connector and rubble, permeable concrete stake is built in vertex of a triangle successively by the shape of equilateral triangle, the reinforcing bar of each permeable concrete stake is fixed a junked tire longitudinally cutting, permeable concrete stake connects, is embedded on ground by connector successively, inner and the wheel tyre cavity of equilateral triangle is filled with rubble, and said structure has filled on it earth roadbed.
2. a kind of composite consolidation roadbed as claimed in claim 1, is characterized in that: described connector is prepared from by resistant material.
3. adopt a construction method for above-mentioned subgrade structure, it is characterized in that: the steps include:
(1) with drill hole of drilling machine clear hole, equilateral triangle is held in the position in hole, pitch-row 1.2～1.8m; Junked tire longitudinally being cut open, formed peviform, prefabricated connector is cut into mono-section of 2.2m, is connection basin type tire used, will
reinforcing bar be cut into mono-section of 1.5m, with transport vehicle, transport rubble to scene, in order to using;
(2) in the hole of having bored, build permeable concrete, stake is long can be determined according to actual conditions, while building pile body top, reinforcing bar is implanted to permeable concrete stake, the concrete pile of the having built 0.5m that is above the ground level, and by the Partial Resection being above the ground level, the reinforcing bar length after excision in pile body is about 1m, the reinforcing bar length of stretching out pile body is not less than 0.4m, afterwards grade;
(3) junked tire of longitudinally cutting open is arranged in directly over permeable concrete stake, makes reserved steel bar pass tire hole, reserved steel bar is bent up, hold tire, the banded connector made from pvc material couples together the colligation of peviform tire;
(4) rubble is filled between peviform tire and tire in, rubble filled height, higher than the height 1-5cm of the half of tire of basin shape, will note protecting the connector between tire while filling rubble;
(5) after rolling compacting, fill earth roadbed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410021123.3A CN103711053B (en) | 2014-01-16 | 2014-01-16 | A kind of composite consolidation roadbed and construction method |
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| CN201410021123.3A CN103711053B (en) | 2014-01-16 | 2014-01-16 | A kind of composite consolidation roadbed and construction method |
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| CN103711053B CN103711053B (en) | 2016-03-30 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911983A (en) * | 2014-04-17 | 2014-07-09 | 山东大学 | Tire-gravel drainage pile composite foundation treatment method |
| CN105254195A (en) * | 2015-11-13 | 2016-01-20 | 山东大学 | Junked tire recycled concrete composite material and complex and construction method thereof |
| CN107059536A (en) * | 2017-04-26 | 2017-08-18 | 河北工业大学 | A kind of new-to-old concrete interface bar planting adhesive method |
| CN108560542A (en) * | 2018-05-03 | 2018-09-21 | 湖北工业大学 | A kind of waste tire cladding builds the two-directed reinforcement and its construction method of slag |
| CN111305184A (en) * | 2020-02-27 | 2020-06-19 | 江苏省地质矿产局第三地质大队 | Waste tire reinforced foundation and construction method thereof |
| CN112227340A (en) * | 2020-10-23 | 2021-01-15 | 金陵科技学院 | Pile-supported reinforced embankment based on waste tires and working method thereof |
| CN112227122A (en) * | 2020-08-29 | 2021-01-15 | 天津鑫路桥建设工程有限公司 | Roadbed reinforcing structure and construction method |
| CN112301822A (en) * | 2020-10-26 | 2021-02-02 | 方苏峤 | Highway construction method |
| CN112391894A (en) * | 2020-11-06 | 2021-02-23 | 天津市市政工程设计研究院 | Transverse water passing roadbed structure |
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| US4801217A (en) * | 1986-11-24 | 1989-01-31 | Jerry Goldberg | Construction mat formed from discarded tire beads and method for its use |
| US5846021A (en) * | 1995-08-02 | 1998-12-08 | Bailey; Denzil C. | Road base matrix |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911983A (en) * | 2014-04-17 | 2014-07-09 | 山东大学 | Tire-gravel drainage pile composite foundation treatment method |
| CN103911983B (en) * | 2014-04-17 | 2015-12-02 | 山东大学 | Tire-gravel drainage pile treatment process of composite foundation |
| CN105254195A (en) * | 2015-11-13 | 2016-01-20 | 山东大学 | Junked tire recycled concrete composite material and complex and construction method thereof |
| CN107059536A (en) * | 2017-04-26 | 2017-08-18 | 河北工业大学 | A kind of new-to-old concrete interface bar planting adhesive method |
| CN107059536B (en) * | 2017-04-26 | 2019-01-25 | 河北工业大学 | A kind of new-to-old concrete interface bar planting adhesive method |
| CN108560542A (en) * | 2018-05-03 | 2018-09-21 | 湖北工业大学 | A kind of waste tire cladding builds the two-directed reinforcement and its construction method of slag |
| CN111305184A (en) * | 2020-02-27 | 2020-06-19 | 江苏省地质矿产局第三地质大队 | Waste tire reinforced foundation and construction method thereof |
| CN111305184B (en) * | 2020-02-27 | 2021-08-06 | 江苏省地质矿产局第三地质大队 | Construction method for reinforcing foundation by waste tire |
| CN112227122A (en) * | 2020-08-29 | 2021-01-15 | 天津鑫路桥建设工程有限公司 | Roadbed reinforcing structure and construction method |
| CN112227340A (en) * | 2020-10-23 | 2021-01-15 | 金陵科技学院 | Pile-supported reinforced embankment based on waste tires and working method thereof |
| CN112227340B (en) * | 2020-10-23 | 2022-02-18 | 金陵科技学院 | Pile-supported reinforced embankment based on waste tires and working method thereof |
| CN112301822A (en) * | 2020-10-26 | 2021-02-02 | 方苏峤 | Highway construction method |
| CN112391894A (en) * | 2020-11-06 | 2021-02-23 | 天津市市政工程设计研究院 | Transverse water passing roadbed structure |
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| CN103711053B (en) | 2016-03-30 |
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