CN113774893A - Cemented soil slope filling construction method - Google Patents
Cemented soil slope filling construction method Download PDFInfo
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- CN113774893A CN113774893A CN202111014878.7A CN202111014878A CN113774893A CN 113774893 A CN113774893 A CN 113774893A CN 202111014878 A CN202111014878 A CN 202111014878A CN 113774893 A CN113774893 A CN 113774893A
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- cemented soil
- slope
- soil
- cemented
- rolling
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- 239000002689 soil Substances 0.000 title claims abstract description 128
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000005096 rolling process Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000012423 maintenance Methods 0.000 claims abstract description 9
- 238000007373 indentation Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 15
- 241000196324 Embryophyta Species 0.000 claims description 14
- 238000013461 design Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 238000003892 spreading Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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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
- E02D3/02—Improving by compacting
-
- 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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Abstract
A cemented soil slope filling construction method relates to a slope filling construction method. The invention solves the problems of low construction efficiency and incapability of ensuring the mixing quality of cemented soil existing in the field mixing of the existing cemented soil. The method comprises the following steps: the cemented soil is mixed by adopting a centralized plant mixing process; step two: transporting the cemented soil to an operation slope; step three: uniformly paving the cemented soil along the operation slope by adopting a paving machine; step four: sprinkling water on the paved cemented soil slope surface by a sprinkling truck, wherein the allowable deviation of the water content of the cemented soil slope surface before rolling and the optimal water content is +/-2%; step five: rolling the spread and watered cemented soil for many times; step six: repeatedly rolling the compacted cemented soil along the operation slope by adopting a smooth surface rolling machine until the indentation is eliminated; step seven: and covering and watering the compacted cemented soil slope for maintenance, keeping the cemented soil surface moist, wherein the maintenance period is not less than 14 days. The invention is used for cemented soil slope filling construction.
Description
Technical Field
The invention relates to the field of cemented soil site construction, in particular to a cemented soil slope filling construction method.
Background
The cemented soil is a material with certain strength formed by mixing, paving, rolling and maintaining a cementing material, soil materials and water according to a certain proportion, can be used for filling, protecting and reinforcing treatment of hydraulic engineering, and can also be used for modification of special soil. With the continuous and deep research on various performances of cemented soil, the cemented soil is implemented from an experimental stage to a construction stage.
At present, cemented soil is usually mixed on a construction site in the construction process of the cemented soil, which is a common mode in the construction process of a plurality of buildings, because the required cemented soil is more in the construction process, the on-site mixing can not meet the continuous construction operation, the construction efficiency is low, in addition, the mixing process and the mixing quality can not be completely ensured, and further the construction quality of the cemented soil can not be ensured.
In conclusion, the problems of low construction efficiency and incapability of ensuring the mixing quality of cemented soil exist in the field mixing of the existing cemented soil.
Disclosure of Invention
The invention aims to solve the problems that the existing cemented soil on-site mixing is low in construction efficiency and the cemented soil mixing quality cannot be guaranteed, and further provides a cemented soil slope filling construction method.
The technical scheme of the invention is as follows:
a cemented soil slope filling construction method comprises the following steps:
the method comprises the following steps: the cemented soil mixing adopts a centralized plant mixing process, and the output of cemented soil mixing production equipment is more than 360m 3/h;
step two: transporting vehicles are equipped according to the cemented soil filling engineering quantity, the construction strength and the transport distance, and the cemented soil is transported to the operation slope;
step three: uniformly paving the cemented soil along the operation slope by adopting a paving machine, wherein the paving thickness of the slope is not less than 150mm and not more than 450 mm;
step four: sprinkling water on the paved cemented soil slope surface by a sprinkling truck, wherein the allowable deviation of the water content of the cemented soil slope surface before rolling and the optimal water content is +/-2%;
step five: repeatedly rolling the spread and watered cemented soil along the operation slope surface by a rolling machine to reach the required rolling times;
step six: repeatedly rolling the compacted cemented soil along the operation slope by adopting a smooth surface rolling machine until indentation is eliminated, so that the rolled slope is smooth;
step seven: and covering and watering the compacted cemented soil slope for maintenance, keeping the cemented soil surface moist, wherein the maintenance period is not less than 14 days.
Compared with the prior art, the invention has the following effects:
according to the invention, the cemented soil is produced by a centralized plant-mixing process, rapid and continuous industrial preparation is realized, the cemented soil after being mixed is transported to the operation slope for filling construction, the mechanization degree is high in the whole construction process, the construction efficiency is greatly improved, and the filling construction quality of the cemented soil is powerfully ensured.
Drawings
FIG. 1 is a schematic diagram of a consolidated soil plant mix. Fig. 2 is a schematic illustration of cemented soil transport. Fig. 3 is a schematic view of construction and paving of a cemented soil slope. Fig. 4 is a schematic view of construction and rolling of a cemented soil slope. FIG. 5 is a schematic view of the construction of the cemented soil slope by sprinkling water and curing.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 5, and the cemented soil slope filling construction method of the present embodiment includes the following steps:
the method comprises the following steps: the cemented soil mixing adopts a centralized plant mixing process, and the output of cemented soil mixing production equipment is more than 360m 3/h;
step two: transporting vehicles are equipped according to the cemented soil filling engineering quantity, the construction strength and the transport distance, and the cemented soil is transported to the operation slope;
step three: uniformly paving the cemented soil along the operation slope by adopting a paving machine, wherein the paving thickness of the slope is not less than 150mm and not more than 450 mm;
step four: sprinkling water on the paved cemented soil slope surface by a sprinkling truck, wherein the allowable deviation of the water content of the cemented soil slope surface before rolling and the optimal water content is +/-2%;
step five: repeatedly rolling the spread and watered cemented soil along the operation slope surface by a rolling machine to reach the required rolling times;
step six: repeatedly rolling the compacted cemented soil along the operation slope by adopting a smooth surface rolling machine until indentation is eliminated, so that the rolled slope is smooth;
step seven: and covering and watering the compacted cemented soil slope for maintenance, keeping the cemented soil surface moist, wherein the maintenance period is not less than 14 days.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1 to 5, and the process of mixing cemented soil by a centralized plant in the first step of the present embodiment is as follows: and (3) conveying the soil material to a mixing station, mixing the cementing material into the soil material according to the required designed mixing proportion, fully mixing, controlling the water addition amount according to the optimal water content in the mixing process, and mixing for not less than 3min to produce the cemented soil material. So set up, concentrate to mix cemented soil not only can guarantee the quality of cemented soil, but also can guarantee the uniformity of the cemented soil of whole filling process, effectively avoided the cemented soil that mixes in different periods to have inconsistent problem, guarantee cemented soil filling quality. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: in the fifth step of the present embodiment, the cemented soil after being sprinkled with water is rolled along the working slope at a speed of 2-3km/h by a rolling machine with a weight of 7t, which is described with reference to fig. 1 to 5. So set up, be convenient for guarantee to roll the effect. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 5, and the rolling in step five of the present embodiment adopts a sectional construction method: the length of 30m is a unit section, the rolling tracks of two adjacent sections of the overlapping belts are overlapped with each other, the width of the overlapping belt is 0.3 m-0.5 m, and the overlapping belts are rolled to the compactness required by the design. So set up, be convenient for guarantee the planarization that rolls. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 to 5, the cemented soil rolling in the fifth step of the embodiment should be continuously performed within 2 hours, and the dry density and the water content of the cemented soil after compaction are subjected to field sampling test. So set up, be convenient for guarantee cemented soil rolls the quality. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: before the steps of the embodiment are started, the base cleaning treatment is carried out on weeds, plant roots and stems, large stones and the like on the slope surface by using a backhoe excavator to ensure that the base surface of the side slope is flat. So set up, the clearance side slope road bed guarantees the smooth filling of cemented soil. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: the present embodiment will be described with reference to fig. 1 to 5, and in the present embodiment, the leveled slope surface is roughened, and then cemented soil is spread and rolled. So set up, be convenient for guarantee the joint strength between cemented soil and the domatic. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: the present embodiment will be described with reference to fig. 1 to 5, and the cemented soil mixing of the present embodiment adopts a centralized plant mixing process: the cemented soil takes fine soil as a raw material, the soil material excavated in a stock ground is fully crushed and needs to be screened by a sieve with the aperture of 5mm, and the cemented soil is ensured not to contain soil blocks with the particle size larger than 5 mm. So set up, be convenient for guarantee the quality of mixing of cemented soil. Other compositions and connection relationships are the same as those of embodiment one, two, three, four, five, six or seven.
The invention comprises centralized plant mixing, transportation, paving, sprinkling, rolling, shaping and maintenance. The centralized plant mixing is mixing production equipment of cemented soil, and soil materials and cementing materials are mixed and stirred uniformly. And the transportation is to transport the uniformly mixed cemented soil to the operation slope surface by a dump truck. And the paving step is to uniformly lay the cemented soil to a certain thickness along the operation slope surface by a paving machine. And the sprinkling is to spray water on the paved cemented soil slope surface through a sprinkling truck so as to reach the water content required by the design. And in the rolling, the spread and watered cemented soil is repeatedly rolled to a certain number of times along the operation slope surface through a rolling machine so as to achieve the compactness required by the design. And the shaping is to repeatedly roll the compacted cemented soil along the operation slope by adopting a smooth surface rolling machine until indentation is eliminated, so that the rolled slope is smooth and flat. And maintaining, namely maintaining the surface of the cemented soil moist on the compacted cemented soil slope surface by adopting the modes of covering, sprinkling and the like so as to achieve the strength required by design.
Claims (8)
1. A cemented soil slope filling construction method is characterized in that: it comprises the following steps:
the method comprises the following steps: the cemented soil mixing adopts a centralized plant mixing process, and the output of cemented soil mixing production equipment is more than 360m 3/h;
step two: transporting vehicles are equipped according to the cemented soil filling engineering quantity, the construction strength and the transport distance, and the cemented soil is transported to the operation slope;
step three: uniformly paving the cemented soil along the operation slope by adopting a paving machine, wherein the paving thickness of the slope is not less than 150mm and not more than 450 mm;
step four: sprinkling water on the paved cemented soil slope surface by a sprinkling truck, wherein the allowable deviation of the water content of the cemented soil slope surface before rolling and the optimal water content is +/-2%;
step five: repeatedly rolling the spread and watered cemented soil along the operation slope surface by a rolling machine to reach the required rolling times;
step six: repeatedly rolling the compacted cemented soil along the operation slope by adopting a smooth surface rolling machine until indentation is eliminated, so that the rolled slope is smooth;
step seven: and covering and watering the compacted cemented soil slope for maintenance, keeping the cemented soil surface moist, wherein the maintenance period is not less than 14 days.
2. The cemented soil slope filling construction method according to claim 1, characterized in that: the process of mixing the cemented soil in the first step by adopting a centralized plant comprises the following steps: and (3) conveying the soil material to a mixing station, mixing the cementing material into the soil material according to the required designed mixing proportion, fully mixing, controlling the water addition amount according to the optimal water content in the mixing process, and mixing for not less than 3min to produce the cemented soil material.
3. The cemented soil slope filling construction method according to claim 2, characterized in that: and fifthly, rolling the spread and sprinkled cemented soil along the operation slope at the speed of 2-3km/h by adopting a 7t rolling machine.
4. The cemented soil slope filling construction method according to claim 3, characterized in that: and the rolling in the fifth step adopts a sectional construction mode: the length of 30m is a unit section, the rolling tracks of two adjacent sections of the overlapping belts are overlapped with each other, the width of the overlapping belt is 0.3 m-0.5 m, and the overlapping belts are rolled to the compactness required by the design.
5. The cemented soil slope filling construction method according to claim 4, characterized in that: and (5) continuously rolling the cemented soil in the step five, finishing within 2h, and carrying out field sampling test on the dry density and the water content of the compacted cemented soil.
6. The cemented soil slope filling construction method according to claim 5, characterized in that: before the first step, carrying out base cleaning treatment on weeds, plant roots and stems and large stones on the slope surface by adopting a backhoe excavator to ensure that the base surface of the side slope is flat.
7. The cemented soil slope filling construction method according to claim 6, characterized in that: and performing chiseling treatment on the leveled slope surface, and then spreading and rolling the cemented soil.
8. The cemented soil slope filling construction method according to claim 7, characterized in that: the cemented soil is mixed by adopting a centralized plant mixing process: the cemented soil takes fine soil as a raw material, the soil material excavated in a stock ground is fully crushed and needs to be screened by a sieve with the aperture of 5mm, and the cemented soil is ensured not to contain soil blocks with the particle size larger than 5 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111014878.7A CN113774893A (en) | 2021-08-31 | 2021-08-31 | Cemented soil slope filling construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111014878.7A CN113774893A (en) | 2021-08-31 | 2021-08-31 | Cemented soil slope filling construction method |
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| CN113774893A true CN113774893A (en) | 2021-12-10 |
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| CN202111014878.7A Pending CN113774893A (en) | 2021-08-31 | 2021-08-31 | Cemented soil slope filling construction method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007332676A (en) * | 2006-06-15 | 2007-12-27 | Minoru Maekawa | Construction method of surface-compacted concrete pavement |
| CN102900003A (en) * | 2012-10-12 | 2013-01-30 | 中交第三公路工程局有限公司 | Steel bridge deck pavement interface handling structure layer and construction process |
| CN108468325A (en) * | 2018-03-23 | 2018-08-31 | 葛洲坝中固科技股份有限公司 | A kind of large area borders on the sea beach ooze rapid curing construction method |
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| CN113005839A (en) * | 2021-03-15 | 2021-06-22 | 云南省设计院集团工程投资有限公司 | Treatment process of bad soil roadbed |
| CN113123323A (en) * | 2021-04-21 | 2021-07-16 | 鹏图建设有限公司 | Lime soil construction process |
| CN113213883A (en) * | 2021-05-24 | 2021-08-06 | 四川交通职业技术学院 | Reclaimed water stabilizing material prepared from waste earthwork and construction method thereof |
-
2021
- 2021-08-31 CN CN202111014878.7A patent/CN113774893A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007332676A (en) * | 2006-06-15 | 2007-12-27 | Minoru Maekawa | Construction method of surface-compacted concrete pavement |
| CN102900003A (en) * | 2012-10-12 | 2013-01-30 | 中交第三公路工程局有限公司 | Steel bridge deck pavement interface handling structure layer and construction process |
| CN108468325A (en) * | 2018-03-23 | 2018-08-31 | 葛洲坝中固科技股份有限公司 | A kind of large area borders on the sea beach ooze rapid curing construction method |
| CN108589688A (en) * | 2018-05-14 | 2018-09-28 | 中国科学院武汉岩土力学研究所 | A kind of coral sand ground deep layer vibroflotation cooperation shallow-layer watering impact-rolling strengthening construction engineering method |
| CN113005839A (en) * | 2021-03-15 | 2021-06-22 | 云南省设计院集团工程投资有限公司 | Treatment process of bad soil roadbed |
| CN113123323A (en) * | 2021-04-21 | 2021-07-16 | 鹏图建设有限公司 | Lime soil construction process |
| CN113213883A (en) * | 2021-05-24 | 2021-08-06 | 四川交通职业技术学院 | Reclaimed water stabilizing material prepared from waste earthwork and construction method thereof |
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Application publication date: 20211210 |