CN106884426A - A kind of large channel base soil heat-preserving anti-freezing method - Google Patents
A kind of large channel base soil heat-preserving anti-freezing method Download PDFInfo
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- CN106884426A CN106884426A CN201710251719.6A CN201710251719A CN106884426A CN 106884426 A CN106884426 A CN 106884426A CN 201710251719 A CN201710251719 A CN 201710251719A CN 106884426 A CN106884426 A CN 106884426A
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- waterproof layer
- sand gravel
- large channel
- freezing method
- preserving anti
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention provides a kind of large channel base soil heat-preserving anti-freezing method, belongs to building for large channel and builds technical field.A trapezoidal channel for certain depth is opened up, the sand gravel of big particle diameter is laid at the canal bottom of the trapezoidal channel, and the sand gravel for setting small particle is filled out in the gap of sand gravel in the big particle diameter；In the first waterproof layer that the side slope and the sand gravel of the big particle diameter and the sand gravel applied atop of small particle of the trapezoidal channel are formed by polyacrylic water-proof material, then non-woven fabrics and warming plate are laid on first waterproof layer, and the second waterproof layer is coated on the warming plate；At least one of which composite geo-membrane is laid on second waterproof layer, confining bed is laid on the composite geo-membrane, and concrete prefabricated board is laid on the confining bed, and be irrigated.The large channel base soil heat-preserving anti-freezing method that the present invention is provided has good heat-preserving anti-freezing swollen and antiseepage function in large channel base soil, improves the utilization rate of large channel.
Description
Technical field
Technical field is built the present invention relates to building for large channel, is incubated more specifically to a kind of large channel base soil
Antifreeze method.
Background technology
NORTHWEST CHINA is regional due to very cold, so one frost heaving failure phenomenon of canal engineering generally existing, i.e., so-called
Freeze injury problem.Although produce the condition of freeze injury has temperature, soil and moisture these three indispensable key elements, but temperature is leading
Key element, does not have temperature this prerequisite, and soil and moisture have that to produce the advantage of frost heave be also not in freeze injury again.
But it is very low for the temperature in severe cold area winter, for the phenomenon for preventing the Canal Base soil of severe cold area freezing, it is necessary to from canal
It is improved in the design in road, channel carries the vital task of irrigation and drainage, in the event of frost heave, bottom surface can not only deforms, canal
Road is likely to be destroyed, therefore to take measures to prevent frost heaving failure in the design and work progress of large channel.
The content of the invention
The present invention provides a kind of large channel base soil heat-preserving anti-freezing method, has good anti-freeze expansion to large channel base soil
With antiseepage function, the structure durability of large channel is improve.
The present invention is adopted the technical scheme that, comprised the following steps：
S1, a trapezoidal channel for certain depth is opened up, the base soil to the trapezoidal channel carries out compacting treatment；
S2, the sand gravel of big particle diameter is laid at the canal bottom of the trapezoidal channel, and between the sand gravel of the big particle diameter
Fill out the sand gravel for setting small particle in gap, the laying depth of the sand gravel of the big particle diameter and the sand gravel of the small particle with it is described
The ratio between depth of trapezoidal channel is 1:5~10；
S3, in the side slope of the trapezoidal channel and the sand gravel of the big particle diameter and the sand gravel applied atop of small particle
The first waterproof layer formed by polyacrylic water-proof material, then lays warming plate, in the insulation on first waterproof layer
Non-woven fabrics is laid on plate, and the second waterproof layer formed by polyacrylic water-proof material is coated on the non-woven fabrics；
S4, the laying at least one of which composite geo-membrane on second waterproof layer, lay envelope on the composite geo-membrane
Layer is closed, and concrete prefabricated board is laid on the confining bed, finally poured the concrete prefabricated board with pouring material and mix
Seam between solidifying soil prefabricated board.
Preferably, the ratio between first waterproof layer and thickness of second waterproof layer are 2:1.
Preferably, the confining bed be modified emulsifying asphalt coating, the modified emulsifying asphalt coating by emulsified asphalt,
Cement and auxiliary agent are constituted.
Preferably, the modified emulsifying asphalt coating is by emulsified asphalt：Cement：Auxiliary agent presses 1:0.4:0.05 ratio
Mixing is formed, and the thickness of the modified emulsifying asphalt coating is 1~5cm.
Preferably, the thickness of first waterproof layer is 3~6cm, and the thickness of second waterproof layer is 1.5~3cm.
Preferably, the number of plies of the composite geo-membrane is two-layer.
Preferably, in the step S4, the pouring material is cement mortar.
Preferably, the laying depth of the sand gravel of the sand gravel of the big particle diameter and the small particle and the trapezoidal channel
The ratio between the depth in road is 1:8.
Preferably, bar-mat reinforcement is provided with the concrete prefabricated board, the number of plies of bar-mat reinforcement is two-layer.
Preferably, the warming plate is styrofoam.
Large channel of the present invention is trapezium structure, by the gravel that big particle diameter is laid in the bottom of trapezoidal channel
Stone, and sand gravel using small particle is filled, then in the side slope and the sand gravel and granule of big particle diameter of trapezoidal channel
The waterproof layer of sand gravel applied atop first in footpath, and non-woven fabrics is laid on the first waterproof layer, second is coated on non-woven fabrics and is prevented
Water layer；Composite geo-membrane is laid on the second waterproof layer, confining bed is laid on composite geo-membrane, and on the confining bed upper berth
If concrete prefabricated board, finally with the seam between pouring material placing concrete prefabricated board, the knot of large channel is ensure that
The stability of structure, antiseepage function, insulation and antifreeze function.
Beneficial effects of the present invention：
1st, large channel base of the present invention soil heat-preserving anti-freezing method to large channel base soil with good insulation and
Antifreeze function, and with good antiseepage function.
2nd, the Stability Analysis of Structures of large channel base soil heat-preserving anti-freezing method of the present invention, reasonable in design, construction party
Just, the cost of material is low, avoids the destruction of the frost heave and seepage of channel to large channel, improves the utilization of large channel
Rate.
Specific embodiment
Embodiment 1
Comprise the following steps：
S1, a trapezoidal channel for certain depth is opened up, the base soil to the trapezoidal channel carries out compacting treatment；
S2, the sand gravel of big particle diameter is laid at the canal bottom of the trapezoidal channel, and between the sand gravel of the big particle diameter
Fill out the sand gravel for setting small particle in gap, the laying depth of the sand gravel of the big particle diameter and the sand gravel of the small particle with it is described
The ratio between depth of trapezoidal channel is 1:5；
S3, in the side slope of the trapezoidal channel and the sand gravel of the big particle diameter and the sand gravel applied atop of small particle
The first waterproof layer formed by polyacrylic water-proof material, then lays polyurethane thermal insulation board, in institute on first waterproof layer
State and non-woven fabrics is laid on warming plate, and the second waterproof layer formed by polyacrylic water-proof material is coated on the non-woven fabrics, the
The ratio between the thickness of one waterproof layer and the depth of trapezoidal channel are 1:20, the thickness of the second waterproof layer is the two of the first waterproofing layer thickness
/ mono-；
S4, one layer of composite geo-membrane of laying on second waterproof layer, confining bed is laid on the composite geo-membrane,
And the concrete prefabricated board of two-layer bar-mat reinforcement is provided with the confining bed in laying, finally with fast-drying type cement mortar pouring institute
State the seam between concrete prefabricated board and concrete prefabricated board；The confining bed is modified emulsifying asphalt coating, modified emulsifying
Bituminous coating is by emulsified asphalt：Cement：Auxiliary agent presses 1:0.3:0.06 ratio mixing is formed, the modified emulsifying asphalt coating
Thickness be 3cm；The large channel of the large channel base soil heat-preserving anti-freezing method building described in the embodiment has good to base soil
Good anti-freeze expansion function, does not occur large channel bursting by freezing and breakoff phenomenon in minus 20 degrees, improves the utilization of large channel
Rate, reduces the maintenance cost that channel is destroyed and need to be repaired.
Embodiment 2
Comprise the following steps：
S1, a trapezoidal channel for certain depth is opened up, the base soil to the trapezoidal channel carries out compacting treatment；
S2, the sand gravel of big particle diameter is laid at the canal bottom of the trapezoidal channel, and between the sand gravel of the big particle diameter
Fill out the sand gravel for setting small particle in gap, the laying depth of the sand gravel of the big particle diameter and the sand gravel of the small particle with it is described
The ratio between depth of trapezoidal channel is 1:8；
S3, in the side slope of the trapezoidal channel and the sand gravel of the big particle diameter and the sand gravel applied atop of small particle
The first waterproof layer formed by polyacrylic water-proof material, then lays polyphenyl board thermal insulation board, in institute on first waterproof layer
State and non-woven fabrics is laid on warming plate, and the second waterproof layer formed by polyacrylic water-proof material is coated on the non-woven fabrics；Institute
The thickness of the first waterproof layer is stated for 3~6cm, the thickness of second waterproof layer is 1.5~3cm；
S4, the laying two-layer composite geo-membrane on second waterproof layer, confining bed is laid on the composite geo-membrane,
And concrete prefabricated board is laid on the confining bed, finally pour the concrete prefabricated board with fast-drying type cement mortar and mix
Seam between solidifying soil prefabricated board.The confining bed is modified emulsifying asphalt coating, and the modified emulsifying asphalt coating is by emulsifying
Pitch, cement and auxiliary agent press 1:0.4:0.05 ratio mixing is formed, and the thickness of the modified emulsifying asphalt coating is 1~5cm,
Auxiliary agent is phthalic acid ester amine；Large channel base soil heat-preserving anti-freezing method described in the embodiment builds the large channel built to base
Soil has good anti-freeze expansion function, large channel bursting by freezing and breakoff phenomenon does not occur at subzero 25 degree, improves large-scale canal
The utilization rate in road, reduces the maintenance cost that channel is destroyed and need to be repaired.
Embodiment 3
Comprise the following steps：
S1, a trapezoidal channel for certain depth is opened up, the base soil to the trapezoidal channel carries out compacting treatment；
S2, the sand gravel of big particle diameter is laid at the canal bottom of the trapezoidal channel, and between the sand gravel of the big particle diameter
Fill out the sand gravel for setting small particle in gap, the laying depth of the sand gravel of the big particle diameter and the sand gravel of the small particle with it is described
The ratio between depth of trapezoidal channel is 1:10；
S3, in the side slope of the trapezoidal channel and the sand gravel of the big particle diameter and the sand gravel applied atop of small particle
The first waterproof layer formed by polyacrylic water-proof material, then lays rock cotton board as warming plate on first waterproof layer,
Non-woven fabrics is laid on the warming plate, and the second waterproof formed by polyacrylic water-proof material is coated on the non-woven fabrics
The ratio between thickness of layer, the first waterproof layer and the second waterproof layer is 2:1；
S4, three layers of composite geo-membrane of laying on second waterproof layer, confining bed is laid on the composite geo-membrane,
And concrete prefabricated board is laid on the confining bed, finally pour the concrete prefabricated board with pouring material and concrete is pre-
Seam between making sheet.The confining bed is modified emulsifying asphalt coating, and the modified emulsifying asphalt coating is by emulsified asphalt, water
Mud and auxiliary agent are constituted, emulsified asphalt：Cement：Auxiliary agent presses 1:0.5:0.04 ratio mixing, the modified emulsifying asphalt coating
Thickness is 1~5cm；The large channel of the large channel base soil heat-preserving anti-freezing method building described in the embodiment has good to base soil
Good anti-freeze expansion function, does not occur large channel bursting by freezing and breakoff phenomenon at subzero 28 degree, improves the utilization of large channel
Rate, reduces the maintenance cost that channel is destroyed and need to be repaired, and the large channel in the embodiment is applied to northwest, northeast
Severe cold area.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the embodiment with description.
Claims (10)
1. a kind of large channel base soil heat-preserving anti-freezing method, it is characterised in that comprise the following steps：
S1, a trapezoidal channel for certain depth is opened up, the base soil to the trapezoidal channel carries out compacting treatment；
S2, lay the sand gravel of big particle diameter at the canal bottom of the trapezoidal channel, and in the gap of sand gravel in the big particle diameter
Fill out the sand gravel for setting small particle, the laying depth of the sand gravel of the big particle diameter and the sand gravel of the small particle is trapezoidal with described
The ratio between depth of channel is 1:5~10；
S3, the trapezoidal channel side slope and the sand gravel of the big particle diameter and the sand gravel applied atop of small particle by third
The first waterproof layer that olefin(e) acid waterproof material is formed, then lays warming plate, on the warming plate on first waterproof layer
Laying non-woven fabrics, and the second waterproof layer formed by polyacrylic water-proof material is coated on the non-woven fabrics；
S4, the laying at least one of which composite geo-membrane on second waterproof layer, confining bed is laid on the composite geo-membrane,
And concrete prefabricated board is laid on the confining bed, finally pour the concrete prefabricated board with pouring material and concrete is pre-
Seam between making sheet.
2. large channel base according to claim 1 soil heat-preserving anti-freezing method, it is characterised in that first waterproof layer with
The ratio between thickness of second waterproof layer is 2:1.
3. large channel base according to claim 1 soil heat-preserving anti-freezing method, it is characterised in that the confining bed is modified
Emulsified asphalt coating, the modified emulsifying asphalt coating is made up of emulsified asphalt, cement and auxiliary agent.
4. large channel base according to claim 3 soil heat-preserving anti-freezing method, it is characterised in that the modified emulsifying asphalt
Coating is by emulsified asphalt：Cement：Auxiliary agent presses 1:0.4:0.05 ratio mixing is formed, the thickness of the modified emulsifying asphalt coating
It is 1~5cm to spend.
5. large channel base according to claim 1 soil heat-preserving anti-freezing method, it is characterised in that first waterproof layer
Thickness is 3~6cm, and the thickness of second waterproof layer is 1.5~3cm.
6. large channel base according to claim 1 soil heat-preserving anti-freezing method, it is characterised in that the composite geo-membrane
The number of plies is two-layer.
7. large channel base according to claim 1 soil heat-preserving anti-freezing method, it is characterised in that in the step S4, institute
Pouring material is stated for cement mortar.
8. large channel base according to claim 1 soil heat-preserving anti-freezing method, it is characterised in that the gravel of the big particle diameter
The ratio between the laying depth of the sand gravel of stone and the small particle and depth of the trapezoidal channel are 1:8.
9. large channel base according to claim 1 soil heat-preserving anti-freezing method, it is characterised in that the concrete prefabricated board
Bar-mat reinforcement is inside provided with, the number of plies of bar-mat reinforcement is two-layer.
10. large channel base according to claim 1 soil heat-preserving anti-freezing method, it is characterised in that the warming plate is poly-
Benzene plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251719.6A CN106884426A (en) | 2017-04-17 | 2017-04-17 | A kind of large channel base soil heat-preserving anti-freezing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251719.6A CN106884426A (en) | 2017-04-17 | 2017-04-17 | A kind of large channel base soil heat-preserving anti-freezing method |
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| CN106884426A true CN106884426A (en) | 2017-06-23 |
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| CN201710251719.6A Pending CN106884426A (en) | 2017-04-17 | 2017-04-17 | A kind of large channel base soil heat-preserving anti-freezing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643129A (en) * | 2018-06-27 | 2018-10-12 | 内蒙古自治区水利科学研究院 | A kind of method that polystyrene board is used for mold-bagged concrete channel anti-freeze expansion |
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| CN108643129A (en) * | 2018-06-27 | 2018-10-12 | 内蒙古自治区水利科学研究院 | A kind of method that polystyrene board is used for mold-bagged concrete channel anti-freeze expansion |
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