CN103979880B - A kind of pipeline engineering trench backfill material cement many conjunctions compound and preparation method - Google Patents
A kind of pipeline engineering trench backfill material cement many conjunctions compound and preparation method Download PDFInfo
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- CN103979880B CN103979880B CN201410238236.9A CN201410238236A CN103979880B CN 103979880 B CN103979880 B CN 103979880B CN 201410238236 A CN201410238236 A CN 201410238236A CN 103979880 B CN103979880 B CN 103979880B
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Abstract
The present invention relates to construction material, be specifically related to a kind of pipeline engineering trench backfill material cement many conjunctions compound and preparation method thereof。This compound with construction waste crushing compound and soil for main composition material, and it being aided with a small amount of cement, cement accounts for the 3%-10% of compound total amount, and soil accounts for the 35%-45% of compound total amount, the plasticity index of this soil is 10-20, and its amount of water accounts for the 10%-16% of compound。Owing to this compound has good workability, so this back-filling way will not leave dead angle at pipeline axil angle place, it is possible to fill each corner uniformly densely, safe and reliable；This construction technology has saved substantial amounts of manpower and materials compared to traditional construction technique, is greatly shortened the construction period, highly promotes；In material composition, we used building waste, turned waste into wealth by these garbages, again produce to be worth, it is achieved that save the energy, environmental protection produces theory。
Description
(1) technical field
The present invention relates to construction material, be specifically related to a kind of pipeline engineering trench backfill material cement many conjunctions compound and preparation method。
(2) background technology
The municipal pipeline engineering trench backfill material of current China is generally element soil, dirt, yellow ground, stone powder and aggregate chips mix by a certain percentage, broken (gravel) stone of cement, stone powder and aggregate chips mix by a certain percentage, grating and cement stabilizing broken (gravel) stone material etc., most employing is tamped or rolling method, this back-filling way also exists a problem for a long time always, namely pipeline axil angle place does not have enough work surfaces to be difficult to grinding compacting or compacting due to ballast consolidating machine, backfilling material degree of compaction does not reach designing requirement, and voidage is bigger。Due to the outside seepage of water in the immersion of surface water and the activity of subsoil water and pipeline or underground structure, causing producing to contact between backfilling material with pipeline or structures to wash away, the fine grained soil in backfill soil is moved with the activity of subsoil water。Along with passage and the loss of underground fine grained soil, soil is emptied, and underground can produce cavity, the situation that pipeline can be subjected to displacement in space, causes that ground subsides, and the life security of people is impacted。
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, provide a kind of pipeline engineering trench backfill material cement many conjunctions compound and preparation method, owing to the use of this compound makes pipeline will not be subjected to displacement in groove, thus avoiding the generation of surface collapse, safe and reliable。
The present invention is achieved through the following technical solutions:
A kind of pipeline engineering trench backfill material cement many conjunctions compound, its be characterized in that this compound with construction waste crushing compound and soil for main composition material, and it is aided with a small amount of cement, cement accounts for the 3%-10% of compound total amount, soil accounts for the 35%-45% of compound total amount, the plasticity index of this soil is 10-20, and its amount of water accounts for the 10%-16% of compound。
The preparation method of a kind of pipeline engineering trench backfill material cement many conjunctions compound, comprises the following steps:
(1) selection: with construction waste crushing compound and soil for main composition material, and being aided with a small amount of cement, cement accounts for the 3%-10% of compound total amount；
(2) add water mix: soil accounts for the 35%-45% of compound total amount, and the plasticity index of this soil is 10-20, instructs amount of water according to the plasticity index of soil used, and its amount of water accounts for the 10%-16% of compound, forms a kind of good mixture of workability；
(3) pipeline backfill: in pipeline backfill construction, the mixture that mixing is good is poured directly in backfill groove, is vibrated again floating with vibrating spear。
Beneficial effects of the present invention: owing to this compound has good workability, so this back-filling way will not leave dead angle at pipeline axil angle place, it is possible to fill each corner uniformly densely, safe and reliable；This compound can increase the ring stiffness of backfill pipeline after producing intensity, form with it an entirety, add the strength durable of pipeline；Backfill position zanjon place etc. being inconvenient to down to workman and machinery is especially suitable for；This construction technology has saved substantial amounts of manpower and materials compared to traditional construction technique, is greatly shortened the construction period, highly promotes；In material composition, we used building waste, turned waste into wealth by these garbages, again produce to be worth, it is achieved that save the energy, environmental protection produces theory。
(4) accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of the pipeline engineering groove of the present invention。
(5) detailed description of the invention
Embodiment 1:
The preparation method of pipeline engineering trench backfill material cement many conjunctions compound of the present embodiment, the steps include:
(1) selection: with construction waste crushing compound and soil for main composition material, and being aided with a small amount of cement, cement accounts for the 3% of compound total amount；
(2) add water mix: soil accounts for the 35% of compound total amount, and the plasticity index of this soil is 10, instructs amount of water according to the plasticity index of soil used, and its amount of water accounts for the 10% of compound, forms a kind of good mixture of workability；
(3) pipeline backfill: in pipeline backfill construction, the mixture that mixing is good is poured directly in backfill groove, is vibrated again floating with vibrating spear。
Embodiment 2
The preparation method of pipeline engineering trench backfill material cement many conjunctions compound of the present embodiment, the steps include:
(1) selection: with construction waste crushing compound and soil for main composition material, and being aided with a small amount of cement, cement accounts for the 10% of compound total amount；
(2) add water mix: soil accounts for the 45% of compound total amount, and the plasticity index of this soil is 20, instructs amount of water according to the plasticity index of soil used, and its amount of water accounts for the 16% of compound, forms a kind of good mixture of workability；
(3) pipeline backfill: in pipeline backfill construction, the mixture that mixing is good is poured directly in backfill groove, is vibrated again floating with vibrating spear。
Embodiment 3
The preparation method of pipeline engineering trench backfill material cement many conjunctions compound of the present embodiment, the steps include:
(1) selection: with construction waste crushing compound and soil for main composition material, and being aided with a small amount of cement, cement accounts for the 6% of compound total amount；
(2) add water mix: soil accounts for the 40% of compound total amount, and the plasticity index of this soil is 15, instructs amount of water according to the plasticity index of soil used, and its amount of water accounts for the 13% of compound, forms a kind of good mixture of workability；
(3) pipeline backfill: in pipeline backfill construction, the mixture that mixing is good is poured directly in backfill groove, is vibrated again floating with vibrating spear。
Embodiment 4
The preparation method of pipeline engineering trench backfill material cement many conjunctions compound of the present embodiment, the steps include:
(1) selection: with construction waste crushing compound and soil for main composition material, and being aided with a small amount of cement, cement accounts for the 6% of compound total amount；
(2) add water mix: instructs amount of water according to the plasticity index of soil used, to plasticity index soil in 15 scopes, its amount of water accounts for the 11% of compound, forms a kind of good mixture of workability；
(3) pipeline backfill: in pipeline backfill construction, the mixture that mixing is good is poured directly in backfill groove, is vibrated again floating with vibrating spear。
Embodiment 5
Compound 1d comprcssive strength in above-described embodiment up to 450KPa, 3d can more than 1000KPa, 7d then can more than 2000KPa more than about 1500KPa, 28d intensity, there is not retraction in 56d intensity under sealed maintenance。
Test section backfill data show, adopt light-duty feeler inspection to test its bearing capacity, 1d bearing capacity reach 412KPa, 3d reach light-duty feeler inspection when 660KPa, 7d reach 780KPa, 28d cannot measure (beyond light-duty feeler inspection test scope)。
Claims (1)
1. pipeline engineering trench backfill material cement many conjunctions compound, it is characterized in that: this pipeline engineering trench backfill material cement many conjunctions compound with construction waste crushing compound and soil for main composition material, and it is aided with a small amount of cement, cement accounts for the 3%-10% of pipeline engineering trench backfill material cement many conjunctions compound total amount, soil accounts for the 35%-45% of pipeline engineering trench backfill material cement many conjunctions compound total amount, the plasticity index of this soil is 10-20, its amount of water accounts for the 10%-16% of pipeline engineering trench backfill material cement many conjunctions compound
The preparation method of described pipeline engineering trench backfill material cement many conjunctions compound, comprises the following steps:
(1) selection: with construction waste crushing compound and soil for main composition material, and being aided with a small amount of cement, cement accounts for the 3%-10% of pipeline engineering trench backfill material cement many conjunctions compound total amount；
(2) add water mix: soil accounts for the 35%-45% of pipeline engineering trench backfill material cement many conjunctions compound total amount, the plasticity index of this soil is 10-20, plasticity index according to soil used instructs amount of water, its amount of water accounts for the 10%-16% of pipeline engineering trench backfill material cement many conjunctions compound, forms a kind of good mixture of workability；
(3) pipeline backfill: in pipeline backfill construction, the mixture that mixing is good is poured directly in backfill groove, is vibrated again floating with vibrating spear,
Pipeline engineering trench backfill material cement many conjunctions compound 1d comprcssive strength up to 450KPa, 3d can more than 1000KPa, 7d then can more than 2000KPa more than 1500KPa, 28d intensity, there is not retraction in 56d intensity under sealed maintenance。
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| CN103979880B true CN103979880B (en) | 2016-06-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110776286A (en) * | 2019-09-24 | 2020-02-11 | 中电建生态环境集团有限公司 | Spoil regeneration backfill material and preparation method thereof |
| CN111807782B (en) * | 2020-07-03 | 2021-12-28 | 北京城建华晟交通建设有限公司 | Fluid-state solidification regeneration mixture, preparation method and application thereof in pit backfill |
| CN111779887A (en) * | 2020-07-14 | 2020-10-16 | 浙江昊阳建设有限公司 | Underground pipeline maintenance method |
| CN112159160A (en) * | 2020-09-12 | 2021-01-01 | 北京综建科技有限公司 | Energy-saving environment-friendly backfill material and construction process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1840504A (en) * | 2005-04-01 | 2006-10-04 | 杜绍安 | Normal temperature consolidation materials for construction |
| CN102173682A (en) * | 2011-01-27 | 2011-09-07 | 湖南有色冶金劳动保护研究院 | Loess bonding high-pressure pumping cemented filling material and preparation method thereof |
| CN103319121A (en) * | 2013-06-09 | 2013-09-25 | 北京工业大学 | Fluidic backfill material produced by building garbage fines and construction method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1060469A (en) * | 1996-08-21 | 1998-03-03 | Mitsubishi Materials Corp | Composition for one powder type slow-hardening back-filling material |
| KR100579420B1 (en) * | 2005-11-02 | 2006-05-12 | 상원개발산업주식회사 | Structure and composition use concrete block |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1840504A (en) * | 2005-04-01 | 2006-10-04 | 杜绍安 | Normal temperature consolidation materials for construction |
| CN102173682A (en) * | 2011-01-27 | 2011-09-07 | 湖南有色冶金劳动保护研究院 | Loess bonding high-pressure pumping cemented filling material and preparation method thereof |
| CN103319121A (en) * | 2013-06-09 | 2013-09-25 | 北京工业大学 | Fluidic backfill material produced by building garbage fines and construction method |
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