CN106049369A - Anti-frost heaving canal lining plate containing thermal insulation material - Google Patents
Anti-frost heaving canal lining plate containing thermal insulation material Download PDFInfo
- Publication number
- CN106049369A CN106049369A CN201610460904.1A CN201610460904A CN106049369A CN 106049369 A CN106049369 A CN 106049369A CN 201610460904 A CN201610460904 A CN 201610460904A CN 106049369 A CN106049369 A CN 106049369A
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- Prior art keywords
- frost heaving
- liner plate
- lining plate
- plate
- cavity
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses an anti-frost heaving canal lining plate containing a thermal insulation material. The anti-frost heaving canal lining plate comprises two prefabricated lining plate forms, namely, a rectangular plate and a six-edge plate, and is characterized in that two cavities of which one ends are open are arranged inside the lining plate; one of the two cavities is cuboid and the other of the two cavities is approximate isosceles trapezoid-shaped; the cavities are filled with the thermal insulation material through on-site foamed EPS casting or direct foam plate filling; a separation block of which the thickness is not smaller than 2 cm is arranged between the adjacent cavities; the thickness of the surrounding concrete is not smaller than 2 cm; the thickness of the cavities (the thickness of an insulating layer) can be determined through calculating the local freezing depth; and the entire lining plate except the insulating layer is integrally prefabricated through concrete. The anti-frost heaving canal lining plate has the advantages that canal foundation soil keeps warm, the frost heaving amount is decreased, the project cost is reduced, the construction is facilitated, and waste plastic is fully utilized, the anti-frost heaving canal lining plate can be widely applied to northern canals, and the water delivery of the canals is guaranteed to be safe.
Description
Technical field
The present invention relates to hydraulic engineering field, be specifically related to a kind of canal for water conveyance heat insulation lining structure.
Background technology
In Frozen Ground Area, canal for water conveyance liner structure often produces destruction because of the frost heave of canal base soil.Show as lifting, drum
Swollen, crack, projection are maked somebody a mere figurehead, the forms such as dislocation i.e. base soil washes away of caving in.Produce serious threat channel safety while a large amount of seepage.
The measure of current frost heaving resistant includes: base soil changes to be filled out, drainage measure, structural measure and Insulation etc..
Base soil altering fill amount is big, and construction costs depends on the abundant degree of local Coarse Aggregate, in the runtime, often because of particulate
The intrusion of soil causes frost heaving resistant to lose efficacy.The same quantities of drainage measure is big, is usually used in canal on embankment.Structural measure is with arc, U-shaped
Equal section replaces trapezoidal, rectangle equal section, replaces traditional material with steel fiber reinforced concrete, bituminous concrete etc., but because of canal base soil
, still there is frost heaving failure in the complexity of frost heave load.The insulation of canal base soil is i.e. weakened by Insulation by laying insulation material
Frost heave, protects superstructure safety, relatively common.
Insulation material kind is a lot, such as expanded vermiculite and goods, expanded perlite and goods, mineral wool board etc., with
The development of chemical industry, various cellular insulants are extensively applied in channel, mainly have an EPS warming plate, XPS warming plate,
Polyurethane (PUR), polymer impervious heat-insulating rolling material etc..
During construction, insulation material full wafer is laid on liner structure following, high insulating effect, but there are two problems: one is
Difficulty of construction is relatively big, work progress sensitive for damages；During two are channel water-break, Chang Yinji soil Pore Pressure is excessive, anti-floating
Power is low causes lining cutting body jack-up to be destroyed, and this situation occurred repeatedly in Xinjiang, threatens channel hydraulic pipeline safety.
Summary of the invention
Goal of the invention: the present invention is a kind of novel canal liner plate with heat-insulation layer and technique thereof, i.e. use " structure with
Insulation material " mode that combines, allow liner structure have certain heat insulation function, thus reduce and freeze deep, reduce frost heaving amount, anti-
Only rectangle or six rib plate generation frost heave and slumps, reduce difficulty of construction simultaneously.
Technical scheme: the present invention increases heat-insulation layer at rectangular slab and six rib intralaminar parts.Reserved two cavitys in precoated plate,
Middle part has barrier girt strip, cavity one not to close, it is ensured that Tuo Neimo smoothly, use foaming to pour by opening insulation material,
Injection or filling load cavity.
As preferably, according to " Anti-seepage Engineering Techniques for Irrigation Canals specification ", precoated plate uses C15 or C20 concrete, and cement is adopted
Using 32.5 Portland cements, frost heaving resistant grade is F200, and seepage-resistant grade is W6.
As preferably, warming plate uses the polystyrene foam plate EPS (Expanded of present price relative moderate
Polystyrene) or illustrate as a example by polystyrene extruded sheet XPS (Extruded Polystyrene).Its density between
15-40kg/m3, volume water absorption rate is less than 6%, and dimensional stability (-40-70 DEG C) is not more than 4%, and heat conductivity is less than
0.044W/m℃。
As preferably, concrete roof and base plate thickness are all not less than 2cm, and middle part barrier thickness is 2cm, connect two tables
Face, strengthens structural integrity.In the middle part of concrete, warming plate thickness can determine according to the frost penetration of position, and thickness can foundation
1cm warming plate reduces 10-15cm and freezes deep estimation.This patent illustrates as a example by 4cm thickness.
As preferably, rectangle liner plate, overall dimensions is 38cm × 38cm, inside is divided two pieces of areas be 36cm ×
The cavity of 16cm keeps for warming plate.
As preferably, six prismatic liner plates, the length of side is preferably 32cm, and cavity is the approximation isosceles trapezoid of two area equation,
Base is 32cm × 60.5cm, a height of 24.7cm, and cavity keeps for warming plate.
Beneficial effect: the invention have the advantages that
(1) precast slab of the present invention has good heat-insulating property；Come from substantial amounts of foam beads in the middle part of it, bubble
Being CAB in foam granule, cystosepiment heat conductivity is less than 0.044W/ (m.K), and the heat conductivity of concrete is between 1.5-
1.74W/ (m.K), for 34 times of cystosepiment heat conductivity, insulation effect is obvious, and can reduce canal base soil freezes deep and frost heaving amount.
(2) the material structure distribution of the present invention is more reasonable.Barrier girt strip in precoated plate can strengthen its bulk strength；Insulation
The compacting modulus of plate self is bigger.For non-bearing formula mask liner structure, its bulk strength meets the load of canal engineering to be wanted
Ask.
(3) compared with conventional concrete liner plate, the present invention can save the concrete of at least 70%, and the price of cystosepiment is remote
Less than concrete, less expensive.
(4) compared with conventional concrete liner plate, weight of the present invention decreases 70% accordingly, and (cystosepiment weight can be neglected
Slightly disregard), decrease the operation individually laying cystosepiment simultaneously, difficulty of construction reduces.
(5) granules of polystyrene of the present invention can derive from waste plastic bag and plastic, therefore, it is possible to reduce white
Pollute so that garbage decrement, resource, preserve the ecological environment.
Accompanying drawing explanation
Fig. 1 is the rectangle insulation liner plate three-dimensional perspective that the present invention proposes
Fig. 2 is the rectangle insulation liner plate section plan that the present invention proposes
Fig. 3 is the rectangle insulation liner plate A-A1 profile that the present invention proposes
Fig. 4 is the six prismatic insulation liner plate three-dimensional perspectives that the present invention proposes
Fig. 5 is the six prismatic insulation liner plate section plans that the present invention proposes
Fig. 6 is the six prismatic insulation liner plate B-B1 profiles that the present invention proposes
Detailed description of the invention
Prefabricated thermal insulation liner plate prefabrication process of the present invention mainly includes the configuration of concrete, and lining cutting body is prefabricated and maintenance, protects
The stages such as adiabator filling.Specific implementation process is as follows:
Configuration C15 concrete: cement, stone (peastone), sand, water are configured to tool according to the proportion relation that specification provides
There is the concrete that impervious frost heaving resistant grade is up to standard.
Lining cutting body prefabricated: Nei Mo and external mold are fixed on relevant position, all coat one layer of releasing agent, and place it in
On vibration table, by concreting mould, carry out vibration compacting.
The maintenance demoulding: carry out late maintaining, maintenance, to after requiring age, carries out the demoulding (Nei Mo and external mold).
Filled thermal insulation materials: insulation material be filled with two ways, a kind of mode is foam-in-place casting (or injection),
Will configure with other industrial chemicals by granules of polystyrene, foam under the hot environment of foaming machine, reaction completes
After, the foam beads of flow regime is cast in the cavity of liner plate, warming plate molding after cooling；First another way is
Foaming in foaming workshop, cystosepiment is loaded cavity by scene；Whole manufacturing process i.e. completes.
Six rib plates are similar with rectangular slab technique, only difference is that mold shape is different from size.
Concrete curing completes, and after heat insulating material filling is substituted the bad for the good, is used directly for canal lining.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (5)
1. the channel frost heaving resistant liner plate including heat-insulation layer, it is characterised in that include that rectangle and six prismatics two kinds are common
Canal liner plate；Having two cavitys, rectangle liner plate cavity inside described liner plate is rectangle, and six prismatic liner plate cavitys are
Two approximation isosceles trapezoids；Cavity one end open, internal containing heat-insulation layer；Described liner plate material is concrete；Described lining cutting
Being barrier girt strip between plate internal cavity, it is prefabricated with top board and base plate is integrated.
The most according to claim 1, channel frost heaving resistant liner plate, it is characterised in that there is cavity inside, fill thermal insulating material in cavity
Material.
Channel frost heaving resistant liner plate the most according to claim 1, it is characterised in that cavity in prefabricated period by arranging interior mould
And formed, fill insulation material in cavity, insulation material is generally selected EPS (or XPS) cystosepiment.
Channel frost heaving resistant liner plate the most according to claim 1, it is characterised in that top board, base plate and barrier girt strip thickness are the least
In 2cm, cavity thickness can determine according to the depth of freezing.
Channel frost heaving resistant liner plate the most according to claim 1, it is characterised in that concrete grade is C15 or C20, impervious etc.
Level W6, freeze proof grade is F200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460904.1A CN106049369A (en) | 2016-06-14 | 2016-06-14 | Anti-frost heaving canal lining plate containing thermal insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460904.1A CN106049369A (en) | 2016-06-14 | 2016-06-14 | Anti-frost heaving canal lining plate containing thermal insulation material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106049369A true CN106049369A (en) | 2016-10-26 |
Family
ID=57168029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610460904.1A Pending CN106049369A (en) | 2016-06-14 | 2016-06-14 | Anti-frost heaving canal lining plate containing thermal insulation material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106049369A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759123A (en) * | 2017-01-06 | 2017-05-31 | 石河子大学 | The method for eliminating the canal for water conveyance frost heaving failure effect that Frozen Area winter is run without ice sheet, high water level |
| CN111719509A (en) * | 2020-06-05 | 2020-09-29 | 西北农林科技大学 | Heat-preservation anti-frost-heaving phase-change heat-insulation board for foundation soil of canal in salt cold region |
| CN115284436A (en) * | 2022-06-29 | 2022-11-04 | 一道新能源科技(衢州)有限公司 | Forming method of floating type floating body and floating type floating body |
-
2016
- 2016-06-14 CN CN201610460904.1A patent/CN106049369A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759123A (en) * | 2017-01-06 | 2017-05-31 | 石河子大学 | The method for eliminating the canal for water conveyance frost heaving failure effect that Frozen Area winter is run without ice sheet, high water level |
| CN106759123B (en) * | 2017-01-06 | 2018-11-20 | 石河子大学 | The method for eliminating the canal for water conveyance frost heaving failure effect that Frozen Area winter runs without ice sheet, high water level |
| CN111719509A (en) * | 2020-06-05 | 2020-09-29 | 西北农林科技大学 | Heat-preservation anti-frost-heaving phase-change heat-insulation board for foundation soil of canal in salt cold region |
| CN111719509B (en) * | 2020-06-05 | 2021-12-24 | 西北农林科技大学 | Heat-preservation anti-seepage anti-frost-heaving method for heat-preservation anti-frost-heaving phase-change heat-preservation plate for foundation soil of canal in salt cold region |
| CN115284436A (en) * | 2022-06-29 | 2022-11-04 | 一道新能源科技(衢州)有限公司 | Forming method of floating type floating body and floating type floating body |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |