CN106012980A - Cavity heat-preserving lining plate for resisting frost heaving of channel - Google Patents
Cavity heat-preserving lining plate for resisting frost heaving of channel Download PDFInfo
- Publication number
- CN106012980A CN106012980A CN201610453042.XA CN201610453042A CN106012980A CN 106012980 A CN106012980 A CN 106012980A CN 201610453042 A CN201610453042 A CN 201610453042A CN 106012980 A CN106012980 A CN 106012980A
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- China
- Prior art keywords
- cavity
- channel
- liner plate
- lining plate
- frost heaving
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a cavity heat-preserving lining plate for resisting frost heaving of a channel. The cavity heat-preserving lining plate for resisting frost heaving of the channel comprises two common prefabricated lining plate forms of a rectangular plate, a six-rowed plate and the like. A plurality of cavities sealed by cuboids and triangular prisms are arranged inside; and two layers of KK ultra-hard craft paper boxes ate arranged between the cavities and the lining plate. The effect of the cavity heat-preserving lining plate for resisting frost heaving of the channel lies in forming of the cavities during prefabricating of the lining plate, and the formed cavities play sealing and heat-preserving effects during running of the channel; a separating part with the thickness not smaller than 2 cm is arranged between every two adjacent cavities, the cavity sealing and ribbing effects are achieved, and the thickness of each cavity is not larger than 4 cm; and the whole lining plate, except the reserved cavities, is integrally prefabricated through concrete. The cavity heat-preserving lining plate for resisting frost heaving of the channel has the beneficial effects of channel foundation soil heat preservation, channel foundation soil freezing depth reduction, frost heaving amount reduction, concrete material saving and the like, can be widely applied to the channel engineering in north and guarantees water delivery safety of the channel.
Description
Technical field
The present invention relates to hydraulic engineering field, particularly relate to Frozen Ground Area channel frost heaving resistant new-type tunnel lining structure.
Background technology
Channel is interregional water transfer, diversion and power, urban water supply, the water delivery engineering that field irrigation aspect is important.In the frozen ground regions accounting for China's area 54%, canal frost heave destroys serious, and current heaving measures includes that structural measure, base soil change and fills out and Insulation.Wherein structural measure is first-selected measure, and is often used in combination with latter two mode.
Current structure heaving measures has only carried out some from the angle of " resist, adapt to " frost heave to be improved, and obtains certain frost heaving resistant effect including changing tradition trapezoidal and rectangle lining cutting mode, form of fracture, size and material etc..
Liner structure can be divided into prefabricated and cast-in-place two kinds according to lining cutting mode.Cast-in-place lining cutting globality is good, and construction quality difficulty controls, and its cross dimensions can change clapboard, girt strip plate, cut deal etc. at the position that frost heave is strong, but difficulty of construction is bigger.Precoated plate easily realizes standardization control, and construction is simple, is suitable for less frost-heaving deformation, but globality is not strong, frost-heaving deformation often occurs, causes entirety to collapse.Common prefabricated liner plate has rectangular slab and six rib plates two kinds, is concrete solid prefabricated.
The material of liner structure is changed into armored concrete, bituminous concrete, fiber concrete etc. by common concrete material and increases the strength of materials, but cost is higher, rice husk concrete etc., and new material heat insulation effect is inconspicuous, and structural strength is lost simultaneously.In sum, these liner structures be difficult to meet simultaneously intensity, construct, be incubated, requirement in terms of economic dispatch.
Summary of the invention
Goal of the invention: the problem existed for prefabricated liner plate, the present invention proposes one not only " can adapt to; opposing " certain frost-heaving deformation, the liner structure that can also " be incubated ", can effectively reduce freezing of canal base soil deep, reduce the frost heaving amount of canal base soil, II level frost heave area can be applied individually to any, or with II level above frost heave area is used in combination with other measures.
Technical scheme: in order to increase heat insulation function in the structure, the present invention is that a kind of inside has some closing cavitys and the concrete prefabricated board of barrier supporting construction.Described concrete prefabricated board includes two kinds of structures, and one is rectangle, and another kind is six rib plates, described lining cutting body is by top cover plate, lower raft, central cavity and internal barrier composition, described cover plate and barrier are a complete structure, and described concrete prefabricated board memory is at cavity.
As preferably, precoated plate uses C15 or C20 concrete, and cement uses 32.5 Portland cements, frost heaving resistant grade to be preferably W6 between F100 to F200, seepage-resistant grade.
As preferably, described lining cutting body is required to prefabricated, and maintenance reaches certain intensity.
As preferably, in order to ensure that liner plate intensity, top board and base plate thickness cannot be less than 2cm, central cavity thickness cannot be greater than 4cm.
As preferably, being incubated liner plate for rectangular enclosure, overall dimensions is 50cm × 50cm × 8cm, and cavity is 10cm × 10cm × 4cm.
As preferably, for six prismatic cavity insulation liner plates, the profile length of side is preferably 32cm, and cavity is rectangle and triangle two kinds.Rectangular enclosure length and width, thickness be: 13cm × 11.8cm × 4cm, triangular cavity hypotenuse length, long right-angle side, short right-angle side, a height of: 26.5cm × 23cm × 13.2cm × 4cm.
As preferably, in order to ensure the molding of prefabrication process cavity, selecting 2 layers of thick for 0.1cm KK ultrahard craft paper to make carton, carton outside dimension determines according to cavity size, there is an envelope plastic paper to seal outside craft paper box, and be fixed on relevant position when precast concrete.
As preferably, in order to ensure that prefabrication process cavity position is fixed, in carton bottom through an iron wire, the iron wire other end is fixed on mold base.
As preferably, liner plate barrier thickness is not less than 2cm, and barrier is connected closely knit with upper and lower plates, it is ensured that cavities seals, simultaneously as girt strip, it is ensured that the intensity of liner structure.
Beneficial effect: the invention have the advantages that
(1) canal base soil can be played the effect of insulation by the present invention, can significantly reduce canal base soil and freeze deeply, reduces frost heaving amount, improves liner structure frost heaving resistant.The existence of inner sealing cavity, stoping air flowing, occluded air heat conductivity in normal conditions is 0.0244W/ (m.K), and the heat conductivity of concrete is between 1.5-1.74W/ (m.K), the latter is the former more than 60 times, has good heat insulation effect.
(2) there is barrier in the cavity insulation liner plate of the present invention, one of effect is to close cavity, stops air flowing, and the two of effect have been ribbing effects, improve bulk strength, resist frost-heave force.The bulk strength of cavity insulation liner plate meets the loading demands of canal engineering.
(3) present invention has some cavitys, can significantly reduce the usage amount of concrete, relatively inexpensive compared with conventional concrete lining plate.
Accompanying drawing explanation
Fig. 1 is the rectangular enclosure insulation liner plate three-dimensional perspective that the present invention proposes.
Fig. 2 is the rectangular enclosure insulation liner plate horizontal sectional drawing that the present invention proposes.
Fig. 3 is the rectangular enclosure insulation liner plate A-A1 profile that the present invention proposes.
Fig. 4 is the six prismatic cavity insulation liner plate three-dimensional perspectives that the present invention proposes.
Fig. 5 is the rectangular enclosure insulation liner plate horizontal sectional drawing that the present invention proposes.
Fig. 6 is the six prismatic cavity insulation liner plate B-B1 profiles that the present invention proposes.
Detailed description of the invention
Precast hollow liner plate prefabrication process of the present invention mainly includes the configuration of concrete, fixed box cavity, and liner plate pours, the process such as maintenance and the demoulding.Prefabrication process is as follows:
Configuration C15 concrete: cement, stone, sand, water are configured with, according to certain proportion relation, the concrete that impervious frost heaving resistant grade is up to standard.
Fixed box cavity: use KK ultrahard craft paper to make specification needed for cavity, carry out plastic paper sealing, the center of carton bottom surface increases the specification iron wire between 12#-16#, and it through carton and is fixed on mold base relevant position according to Fig. 1 by iron wire.
Liner plate pours molding: is placed on a vibration table by mould, by concreting mould, carries out vibration compacting, be finally closed flat by end face.
Maintenance and the demoulding: carrying out later stage watering maintenance, maintenance, to after requiring age, carries out the demoulding.
The molding of six rib plates is similar with rectangle precoated plate, except for the difference that mould and the ultrahard craft paper box used by cavity molding, and concrete usage amount.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (5)
1. a channel frost heaving resistant cavity insulation liner plate, it is characterised in that include rectangle and two kinds of common canal liner plates of six prismatics；
There is some cavitys in described liner plate, rectangle liner plate cavity is cuboid, and six prismatic liner plate cavitys include cuboid and three
Two kinds of prism；2 layers of KK ultrahard craft paper box are had outside described liner plate cavity；Described liner plate material is concrete；Institute
Stating between liner plate internal cavity as barrier girt strip, it is prefabricated with top board and base plate is integrated.
Channel cavity insulation liner plate the most according to claim 1, it is characterised in that there is cavity inside.
Channel cavity insulation liner plate the most according to claim 1, it is characterised in that have 2 layers of KK ultrahard craft paper box outside cavity,
The good molding of cavity when prefabricated, has plastic seal outside craft paper box simultaneously.
Channel cavity insulation liner plate the most according to claim 1, it is characterised in that top board, base plate and barrier girt strip thickness are not less than
2cm, cavity thickness is not more than 4cm.
Channel prefabricated hollow insulation liner plate the most according to claim 1, it is characterised in that concrete grade is C15 or C20, anti-
Oozing grade W6, freeze proof grade is F200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610453042.XA CN106012980A (en) | 2016-06-14 | 2016-06-14 | Cavity heat-preserving lining plate for resisting frost heaving of channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610453042.XA CN106012980A (en) | 2016-06-14 | 2016-06-14 | Cavity heat-preserving lining plate for resisting frost heaving of channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106012980A true CN106012980A (en) | 2016-10-12 |
Family
ID=57086991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610453042.XA Pending CN106012980A (en) | 2016-06-14 | 2016-06-14 | Cavity heat-preserving lining plate for resisting frost heaving of channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106012980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113605319A (en) * | 2021-08-11 | 2021-11-05 | 黑龙江省水利科学研究院 | Flexible frost heaving resistant partition type channel protection facility and construction method thereof |
-
2016
- 2016-06-14 CN CN201610453042.XA patent/CN106012980A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113605319A (en) * | 2021-08-11 | 2021-11-05 | 黑龙江省水利科学研究院 | Flexible frost heaving resistant partition type channel protection facility and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |
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| WD01 | Invention patent application deemed withdrawn after publication |