CN102493308A - Bio-enzyme modified roller compacted concrete road engineering construction technology - Google Patents
Bio-enzyme modified roller compacted concrete road engineering construction technology Download PDFInfo
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- CN102493308A CN102493308A CN2011104147887A CN201110414788A CN102493308A CN 102493308 A CN102493308 A CN 102493308A CN 2011104147887 A CN2011104147887 A CN 2011104147887A CN 201110414788 A CN201110414788 A CN 201110414788A CN 102493308 A CN102493308 A CN 102493308A
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Abstract
The invention discloses a bio-enzyme modified roller compacted concrete road engineering construction technology in which bio-enzyme is used as a curing agent and which is low in construction cost, and is easy to implement, pollution-free, low-carbon and environment-friendly. The technology has the advantages that a road base has high intensity and water stability and a good effect of stabilizing and curing soil. Compared with the conventional road building material, a bio-enzyme road is high in load carrying property, good in road performance, and high in construction speed, and low in cost, and easy to construct; and compared with the conventional road building technology, a bio-enzyme road engineering construction technology can save fund by 10 to 20 percent, and has obvious economic benefit and social benefit; the road is easy to cure, and the bio-enzyme road engineering construction technology greatly reduces the using amount of lime and cement, so the resources are saved; the used materials are mostly waste slag, spoil, hole slag, building slag and other waste materials, damage to an ecological environment is reduced, and the bio-enzyme modified roller compacted concrete road engineering construction technology has obvious economic benefit and social benefit.
Description
Technical field
The present invention relates to road construction technology, particularly a kind of biology enzyme modification roller compacted concrete highway engineering construction technology.
Background technology
At present, the highway in China construction is advanced by leaps and bounds, and invests huge.It is the semi-rigid type base of main material that sub-surface adopts with lime, flyash, cement and rubble more; Development along with highway construction; Consumption to constructional materialss such as sand, stones is also increasing, makes these natural resources day by day poor, and its exploitation is also more and more serious to the destruction of natural environment.Therefore, continually develop and utilize some new constructional materialss, the friendly type of built environment, resource-conserving highway are of great practical significance.
Dry discharge fly ash and desulfurated plaster that the patent No. 200410008727.0 has been produced when disclosing " a kind of soil-solidified-agent that is used for road construction " promptly with inferior coal of power plant burning or brown coal are main component; Participating in quicklime and/or cement, the plaster of paris, aluminum sulfate or alunite forces to mix to form; This method construction is complicated, and structure is unstable, damages easily; Life-span is not long, haves much room for improvement.
Summary of the invention
Technical problem to be solved by this invention provides a kind of biology enzyme modification roller compacted concrete highway engineering construction technology, and promptly providing a kind of is curing compound with the biology enzyme, builds cheap, easy, the pollution-free and low-carbon environment-friendly highway engineering construction technology of construction.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is that the construction technology step is following.
1. material is prepared.
A, raw material are prepared: prepare following mix: bio-modification agent, flexible fiber, coarse aggregate, sand, cement and biology enzyme, wherein mix material proportioning is: bio-modification agent: flexible fiber: coarse aggregate: sand: cement=2:1:1650:495:250.
B, mixed material mix and stir: at first with bio-modification agent, flexible fiber, coarse aggregate, sand, cement according to the proportioning of 2:1:1650:495:250 force dry mixing and; Then dry mixing with after material on evenly spray biology enzyme solution, the proportioning of biology enzyme and mixed material is 1L biology enzyme curing compound: 10m
3Mixed material then fully carries out wet-mixing and subsequent use.
2. former roadbed arrangement: at first carry out former roadbed roadbed arrangement, remove surperficial weeds, foreign material, soft base is handled, suitably changed and fill out, fully roll, recover center line, check and accept absolute altitude, planeness, carry out the flexure detection.
3. biology enzyme solidified earth base layer construction: spray 0.5 ‰ biology enzyme solution, static pressure is 2 times simultaneously.
4. descend the seal construction: spray a certain amount of water in biology enzyme solidified earth substrate surface; Artificial spreading 10-20mm rubble was to substrate surface after the surface reached certain degree of wetting; Reach 98% above coverage scale, then it is carried out vibroroller cmpacting, reach rubble and be embedded in substrate surface with the above pressure road of 16T; Cement paste spreading to the macadam that is in harmonious proportion again is surperficial, and cement paste is prepared according to 50kg/10m
2Prepare and spreading, require the compound concentration consistent and uniform, surperficial application rate reaches 100%.
5. modification grinding coagulation soil layer construction.
A, material pave: carry out paving operation immediately after the construction of following seal finishes, with after mixing and stirring qualified material and being transported to the scope of operation, adopt manual work to pave, flatten; Should confirm vertical and horizontal gradient and thickness before paving, even, the linear smoothness of accomplishing to pave does not have obviously low-lying and protuberance; Check the situation of gathering materials constantly; Should in time reject if any leaf, adhesive tape, over dimensioning stone, bulk foreign matter such as gather materials, check elevation, width, horizontal wall inscription, longitudinal gradient at last, accurately put the road type in order.
B, roll: pave length for rolling length with 20-30m,, can suitably shorten it and roll length if dry; It rolls length otherwise also answer proper extension, when the moisture content of material during near best saturation state, with 20T vibratory roller static pressure 2 times; Bulge, depression, material segregation are dealt with; Low frequency vibration rolls twice then, and dither rolls twice again, twice of last static pressure; The overlapping width of wheelmark should be greater than 10cm during the road roller operation, and rolling speed should be controlled at 0.5-1.0km/h, and nature, smoothness, attractive in appearance should be accomplished in the joint between per two sections of rolling, and do not have tangible seam phenomenon.
6. go up seal construction: after rolling end, with cement paste, biology enzyme modifier and fine sand according to the ratio of 1:1:1 be in harmonious proportion the back evenly spreading fill the road surface hole to road surface, eliminate the group of spending, the cloth trace is swept in manual work.
7. health is checked and accepted: after full-scale construction finishes; The watering health got final product in good time open to traffic in 5 days; The open initial stage of traffic should be established the special messenger and carried out the traffic clearance; Progressively let pass according to dilly → light type agricultural vehicle → load-carrying agri-vehicle → light truck → truck order in principle, between blanking time be 3 days, and then inspect for acceptance.
The invention has the beneficial effects as follows that the roadbase that biology enzyme is reinforced has higher intensity and water stability, has good stable curing effect to soil.Compare with method with traditional road materials such as cement stabilizing sand, biology enzyme road load-carrying properties are high, and pavement performance is good, sensation steadily, do not have jolt, tire makes an uproar little; Construction technology is simple, does not need special construction machinery, and quality requirement is all satisfied in plantmix and road-mix method construction, and speed of application is fast; Cost is low, compares with traditional road building technology, and the biology enzyme highway engineering construction technology 10-20% that can economize on the use of funds has remarkable economic efficiency and social benefit; Maintenance is simple, stability is high, pollution-free, the not blowdown of biology enzyme highway engineering construction technology, nontoxic, nothing corrosion; Really accomplished the strong basis sake; The biology enzyme road building technology has reduced lime, cement consumption significantly, thereby economizes on resources, and mostly the material that adopts is waste, spoir, hole slag, builds obsolete materials such as slag; Reduced destruction, had remarkable economic efficiency and social benefit ecological environment.
Description of drawings
Accompanying drawing is biological enzyme modification roller compacted concrete road structure sketch map.
Among the figure: 1. go up seal, 2. modification grinding coagulation soil layer 3. descends seal, 4. biology enzyme solidified earth basic unit, 5. former roadbed.
The specific embodiment
Be described further below in conjunction with the accompanying drawing specific embodiments of the invention.
In July, 2010, the inventor has done the engineering construction of biology enzyme modification roller compacted concrete actual road test property on the kiwi fruit garden road in village oneself, two river mouth, township, Cenxi, county, the Xiushan Mountain, Chongqing City, the construction long 2100m in road surface.Construction sequence is following:
At first prepare material, the good biological modifier of preparation, flexible fiber, coarse aggregate, sand, cement and biology enzyme, wherein mix material proportioning is: bio-modification agent: flexible fiber: coarse aggregate: sand: cement=2:1:1650:495:250.Carry out earlier dry mixing with, be about to the said ratio material and force to mix and stir, spray biology enzyme then, promptly dry mixing with after material on evenly spray biology enzyme solution, the proportioning of biology enzyme and mixed material is 1L biology enzyme curing compound: 10m
3Mixed material, spray fully carry out behind the biology enzyme wet-mixing with.
Carry out former roadbed 5 roadbeds arrangement simultaneously, remove surperficial weeds, foreign material, soft base is handled, suitably changed and fill out, fully roll, recover center line, check and accept absolute altitude, planeness, carry out the flexure detection; Spray 0.5 ‰ biology enzyme solution then, static pressure is 2 times simultaneously, carries out biology enzyme solidified earth base layer construction 4; Then descend seal 3 constructions, spray a certain amount of water in substrate surface before the construction, make former roadbed 5 surfaces reach certain degree of wetting; Artificial again spreading 10-20mm rubble is to substrate surface; Reach 98% above coverage scale, carry out vibroroller cmpacting, reach rubble and be embedded in substrate surface with the 20T road roller; Cement paste spreading to the macadam that then is in harmonious proportion is surperficial, and cement paste is prepared according to 50kg/10m
2Prepare and spreading, the compound concentration consistent and uniform, surperficial application rate reaches 100%.
Carry out 2 constructions of modification grinding coagulation soil layer after 3 constructions of following seal finish immediately, at first carry out paving operation,, can only carry out that manual work paves and levelling because the mountain construction operating condition is limited.Confirm good vertical and horizontal gradient and thickness before paving, even, the linear smoothness of accomplishing to pave does not have obviously low-lying and protuberance.The inspection situation of gathering materials is constantly in time rejected impurity such as leaf, adhesive tape, over dimensioning stone, bulk foreign matter such as gather materials, and checks elevation, width, horizontal wall inscription, longitudinal gradient then, accurately puts the road type in order; When the moisture content of material during near best saturation state, roll, roll length 30m; At first use 20T vibratory roller static pressure 2 times, bulge, depression, material segregation are dealt with, low frequency vibration rolls twice then; Then dither rolls twice, last static pressure 2 times, and the overlapping width of wheelmark is greater than 10cm during operation; Rolling speed is 1.0km/h, checks that at any time whether two joints between the section of rolling are natural, smooth, attractive in appearance, have or not tangible seam phenomenon.
After rolling end; And then go up seal construction, with cement paste, biology enzyme modifier and a small amount of fine sand be in harmonious proportion to the even spreading of certain proportion to road surface, filling road surface hole; Accomplish not have flower group, the cloth trace is swept in no obvious manual work, cement paste is according to 50kg/10m
2, biology enzyme modifier is according to 2kg/m
3Prepare, carry out an acceptance inspection at last.
After full-scale construction finishes, watering health 5 days, open to traffic then; Initial stage establishes the special messenger and carries out the traffic clearance; Progressively let pass according to dilly → light type agricultural vehicle → load-carrying agri-vehicle → light truck → truck order, between blanking time be 3 days, inspect for acceptance at last.
Use through the inside in 1 year, nowadays, this road surface is stable, groove, no surface porosity, dustless, no rut phenomenon are not cheated in fracture, and behavior in service is good.
Claims (7)
1. biology enzyme modification roller compacted concrete highway engineering construction technology; Its operation is checked and accepted and is formed by material preparation, the arrangement of former roadbed, biology enzyme solidified earth base layer construction, seal construction down, the construction of modification grinding coagulation soil layer, upward seal construction, health; It is characterized in that the described material material in preparing is made up of bio-modification agent, flexible fiber, coarse aggregate, sand, cement and biology enzyme, and its component ratio is biological modifier: flexible fiber: coarse aggregate: sand: cement=2:1:1650:495:250; And with its by proportioning force dry mixing with, then dry mixing with after material on evenly spray biology enzyme solution, the proportioning of biology enzyme and mixed material is 1L biology enzyme curing compound: 10m
3Mixed material.
2. biology enzyme modification roller compacted concrete highway engineering construction technology according to claim 1; It is characterized in that described former roadbed arrangement is at first with former roadbed roadbed arrangement; Remove surperficial weeds, foreign material, soft base is handled, suitably changed and fill out, fully roll; Recover center line, check and accept absolute altitude, planeness, carry out the flexure detection.
3. according to the described biology enzyme modification of claim 1-2 roller compacted concrete highway engineering construction technology, it is characterized in that described biology enzyme solidified earth base layer construction is the surface sprinkling 0.5 ‰ biology enzyme solution after former roadbed arrangement, static pressure is 2 times simultaneously.
4. according to the described biology enzyme modification of claim 1-3 roller compacted concrete highway engineering construction technology; It is characterized in that the construction of described seal down is to spray a certain amount of water in biology enzyme solidified earth substrate surface; Artificial spreading 10-20mm rubble was to substrate surface after the surface reached certain degree of wetting; Reach 98% above coverage scale, then it is carried out vibroroller cmpacting, reach rubble and be embedded in substrate surface with the above pressure road of 16T; Cement paste spreading to the macadam that is in harmonious proportion again is surperficial, and cement paste is prepared according to 50kg/10m
2Prepare and spreading, require the compound concentration consistent and uniform, surperficial application rate reaches 100%.
5. according to the described biology enzyme modification of claim 1-4 roller compacted concrete highway engineering construction technology, it is characterized in that described modification grinding coagulation soil layer construction is to carry out material earlier to pave, carry out paving operation immediately after seal construction instantly finishes; With after mixing and stirring qualified material and being transported to the scope of operation, adopt manual work to pave, flatten, should confirm vertical and horizontal gradient and thickness before paving; Even, the linear smoothness of accomplishing to pave; Do not have obviously low-lying and protuberance, the situation of gathering materials of inspection is constantly in time rejected leaf, adhesive tape, over dimensioning stone, bulk foreign matter such as gather materials; Check elevation, width, horizontal wall inscription, longitudinal gradient at last, accurately put the road type in order; Then roll, pave length for rolling length, when the moisture content of material during near best saturation state with 20-30m; With 20T vibratory roller static pressure 2 times, bulge, depression, material segregation are dealt with, low frequency vibration rolls twice then; Dither rolls twice again, twice of last static pressure; The overlapping width of wheelmark should be greater than 10cm during the road roller operation, and rolling speed should be controlled at 0.5-1.0km/h, and nature, smoothness, attractive in appearance should be accomplished in the joint between per two sections of rolling, and do not have tangible seam phenomenon.
6. according to the described biology enzyme modification of claim 1-5 roller compacted concrete highway engineering construction technology; It is characterized in that the construction of described upward seal is after rolling end; With cement paste, biology enzyme modifier and fine sand according to the ratio of 1:1:1 be in harmonious proportion the back evenly spreading fill the road surface hole to road surface.
7. biology enzyme modification roller compacted concrete highway engineering construction technology according to claim 1; It is characterized in that it is after full-scale construction finishes that described health is checked and accepted, watering health 5 days, open to traffic again; The open initial stage establishes the special messenger and carries out the traffic clearance; Progressively let pass according to dilly → light type agricultural vehicle → load-carrying agri-vehicle → light truck → truck order, whenever increased by one type of vehicle, and then inspect for acceptance at a distance from 3 days.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912804A (en) * | 2012-11-20 | 2013-02-06 | 长沙理工大学 | Biological enzyme soil solidification-based side slope ecological protection method |
| CN103882788A (en) * | 2014-03-12 | 2014-06-25 | 湖南瑞霦科技有限公司 | Road building method based on modified roller compacted concrete pavement on enzyme soil solidified base layer |
| CN103882787A (en) * | 2014-03-12 | 2014-06-25 | 湖南瑞霦科技有限公司 | Pavement structure based on modified roller compacted concrete pavement on enzyme soil solidified base layer |
| CN104152148A (en) * | 2014-07-16 | 2014-11-19 | 中南大学 | Method for preparing pavement base material by stabilizing iron tailings by novel soil stabilizer |
| CN108677667A (en) * | 2018-03-26 | 2018-10-19 | 美尚生态景观股份有限公司 | A kind of method of constructing roadway based on biological enzyme soil-solidified-agent |
| CN109914178A (en) * | 2019-03-06 | 2019-06-21 | 浙江工业大学 | A kind of biological enzyme curing materials integration paved roads construction method |
| CN110725175A (en) * | 2019-09-30 | 2020-01-24 | 杭州园林设计院股份有限公司 | Novel sandy soil pavement |
| CN111501455A (en) * | 2020-04-23 | 2020-08-07 | 山东交通学院 | Construction process for reinforcing roadbed by combining biological enzyme curing material with cured powder soil roadbed and compacted sand piles |
| CN111877072A (en) * | 2020-08-05 | 2020-11-03 | 山东鲁桥建设有限公司 | Method for solidifying new and old roadbed joint by using biological enzyme material |
| CN112555503A (en) * | 2020-12-01 | 2021-03-26 | 上海宝冶集团有限公司 | Biological enzyme curing method for backfilling pipeline groove |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912804A (en) * | 2012-11-20 | 2013-02-06 | 长沙理工大学 | Biological enzyme soil solidification-based side slope ecological protection method |
| CN103882788B (en) * | 2014-03-12 | 2015-10-28 | 湖南瑞霦科技有限公司 | Based on the method for constructing roadway of the modification roller compacted concrete surface layer of enzyme soil cured substrate layer |
| CN103882788A (en) * | 2014-03-12 | 2014-06-25 | 湖南瑞霦科技有限公司 | Road building method based on modified roller compacted concrete pavement on enzyme soil solidified base layer |
| CN103882787A (en) * | 2014-03-12 | 2014-06-25 | 湖南瑞霦科技有限公司 | Pavement structure based on modified roller compacted concrete pavement on enzyme soil solidified base layer |
| CN103882787B (en) * | 2014-03-12 | 2015-10-28 | 湖南瑞霦科技有限公司 | Based on the road structure of the modification roller compacted concrete surface layer of enzyme soil cured substrate layer |
| CN104152148B (en) * | 2014-07-16 | 2018-05-01 | 中南大学 | Soil curing agent stablizes the method that iron tailings prepares road surface base layer material |
| CN104152148A (en) * | 2014-07-16 | 2014-11-19 | 中南大学 | Method for preparing pavement base material by stabilizing iron tailings by novel soil stabilizer |
| CN108677667A (en) * | 2018-03-26 | 2018-10-19 | 美尚生态景观股份有限公司 | A kind of method of constructing roadway based on biological enzyme soil-solidified-agent |
| CN109914178A (en) * | 2019-03-06 | 2019-06-21 | 浙江工业大学 | A kind of biological enzyme curing materials integration paved roads construction method |
| CN110725175A (en) * | 2019-09-30 | 2020-01-24 | 杭州园林设计院股份有限公司 | Novel sandy soil pavement |
| CN111501455A (en) * | 2020-04-23 | 2020-08-07 | 山东交通学院 | Construction process for reinforcing roadbed by combining biological enzyme curing material with cured powder soil roadbed and compacted sand piles |
| CN111877072A (en) * | 2020-08-05 | 2020-11-03 | 山东鲁桥建设有限公司 | Method for solidifying new and old roadbed joint by using biological enzyme material |
| CN112555503A (en) * | 2020-12-01 | 2021-03-26 | 上海宝冶集团有限公司 | Biological enzyme curing method for backfilling pipeline groove |
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Application publication date: 20120613 |