CN106759123A - 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 - Google Patents
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 Download PDFInfo
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- CN106759123A CN106759123A CN201710010222.5A CN201710010222A CN106759123A CN 106759123 A CN106759123 A CN 106759123A CN 201710010222 A CN201710010222 A CN 201710010222A CN 106759123 A CN106759123 A CN 106759123A
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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
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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
- E02B5/005—Canals entirely situated above ground level, e.g. on piers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/35—Foundations formed in frozen ground, e.g. in permafrost soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/46—Foundations for supply conduits or other canals
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Abstract
The present invention relates to a kind of canal for water conveyance frost heaving resistant destruction methods for being applied to Frozen Area.The method of the canal for water conveyance frost heaving failure effect that a kind of elimination Frozen Area winter is run without ice sheet, high water level, including：1）Canal for water conveyance rigidity lining canal cross section uses compound cross-section form, is trapezoidal cross-section below canal bank or levee crown face, more than canal bank or levee crown face is rectangular cross section；2）Using the specific heat capacity of channel water it is high the characteristics of, channel water plays insulation effect to canal base soil, reaches canal base soil in whole phase in winter uncongealable purpose, eliminates the frost heave of canal for water conveyance, and whole winter channel water plane must not be less than canal bank or canal levee crown face；3）The dash stalk canal outside of channel rectangular cross section is without, without soil, natural dash stalk is just without the frost heave action of soil after dash stalk wall more than soil, i.e. canal bank or canal levee crown face.This invention removes canal base soil to the frost heave action of channel rigidity lining cutting layer, and channel rigidity liner plate can be prefabricated, realizes channel concrete product ommercialization, can cross construction build channel, shorten the duration.
Description
Technical field
The present invention relates to a kind of canal for water conveyance frost heaving resistant destruction methods for being applied to Frozen Area, more particularly, to one kind
Eliminate the method for designing of the canal for water conveyance frost heaving failure effect that seasonal frost region winter is run without ice sheet, high water level.
Background technology
Precast slab lining canal has erosion control, seepage capability stronger, the advantage of quick construction, but should be defeated in the north
Often there is crack, the protuberance even breakoff phenomenon on landslide in Hydraulic Projects because of the frost heave action of canal base soil.In order to solve channel
Frost heaving failure, one side people improve channel frost heaving resistant ability, precast slab has been changed to cast in place concrete plate, very
To the thickness of concrete is brought up into 10cm by 5cm, even more greatly；On the other hand, people are according to producing the three big of body frost heaving
Factor, changes the three major types anti-freeze expansion destruction methods filled out to weaken to rigid channel using insulation, waterproof and the soil body（Or eliminate）
The frost heave of Canal Base soil is reducing（Or weaken）Destruction to lining cutting layer.In addition to these measures, also usually use
Structural measure come adapt to channel frost heave change so that act on canal lining layer on frost heave force value reduce, such as small-sized canal
Road U-shape structure, using the form of fracture on arcuate bottom hypotenuse slope in big-and-middle-sized channel.
In recent years, the widely used trapezoidal concrete lining in northern China canal for water conveyance, and under concrete lining course
Overlay has set one or complex geomembrane geotextile.These anti-freeze expansions destruction achievement is widely applied in canal for water conveyance at different levels, is taken
Obtained preferable economic effect.And these anti-freeze expansion methods, also instructed in the form of specification and applied to engineering practice,
Such as：1）Canal cross section form and liner structure use integral concrete U-shaped or rectangular channel, concrete slab according to the big I of channel
With the arc or the section on arc bottom straight flange slope of geotechnological membrane structure, stone-laying lining cutting or other suitable anti-frost heaving resistants destroy structural types
Formula；2）Free flow under the appropriate to the occasion arc canal bottom+rectangle or trapezoidal section canal ice sheet using narrow deep formula of winter water delivery, flowing full water delivery or
Water is crossed without ice sheet.So, no matter whether channel winter crosses water, is all to determine adjoining rock on cross section by water force, and
Lining thickness is determined according to engineering experience and detailing requiments【National Standard of the People's Republic of China's hydraulic structure anti-ices
Freeze design specification GB/T50662-2011 [S] Beijing：China's plan is published, and 2011】, because it was recognized that winter it is defeated
The base soil in water channel road unlike winter cut off the water channel base soil on the whole cross section of channel whole frost heaves, but only in channel water position
Face above side slope position frost heave, under the same terms, the base soil frost-heaving deformation of winter canal for water conveyance（Or total frost-heave force）Not as complete
Section frost heave obtains so big, so lining cutting damage layer degree is also just cut off the water the light thus larger with frost heave action of channel than winter
Tunneling boring frost heave in the case of（That is winter cuts off the water service condition）Method for designing carry out the design of winter canal for water conveyance, just more pacify
Quan Liao.
But thing be willing to be, such as：Project of South-to-North water diversion is employed to change from Shijiazhuang to Beijing general main canal and filled out and thermal-insulating method two
Plant anti-freeze expansion destruction measure【It is several in the design of Wang Liuquan, Zhao Wenqing, Yao Li China Route channels anti-freeze expansion
Problem [J] the south water to north and water conservancy section, 2004,2 (5):9-14.】, Wushi, xinjiang water Reservoir in winter flume is using under ice sheet
Free flow【The cold area's winter canal for water conveyance frost heaving failure mechanism of Cao Xingshan, Chen Zhi Meng and preventing and treating --- drawn with Wushi, xinjiang water reservoir
[J] Journal of Geological Hazards and Environment Preservation as a example by water channel, 2005,16 (4):405-409.】, the two engineerings it is defeated（Draw）Water channel is transported
Row all occurs in that different degrees of frost heaving failure in 2,3 years.This is absolutely proved：Even if the identical channel of all conditions, only because
Whether winter crosses the difference of water, and postrun channel destroying situation is just different.Burst suitable for winter the antifreeze of channel of cutting off the water
Bad method not necessarily just can be applicable winter canal for water conveyance.Therefore two kinds of channels of the method for operation must respectively be carried out each only
Vertical design, research, it is impossible to the consideration for uniting two into one.
In recent years, the widely used lining types tempered toughness with gentleness, i.e., overlay one or complex geomembrane under concrete lining course
Deng geotextile.For the channel that winter cuts off the water, compared with the only channel of concrete slab lining cutting, one or complex geomembrane+
The double anti-lining types of concrete greatly reduce the degree of canal frost heave destruction really.Although being pointed to the complete of Frozen Area
For teletostage canal for water conveyance, the liner structure form for overlaying geomembrane also has preferable anti-seepage effect compared with without geomembrane, so that
Reduce the influence intensity of the factor of frost swelling of base soil, it is ensured that reach antifreezing expansion effect.But according to field investigation, both make to employ at present compared with
Advanced liner structure --- one or complex geomembrane+concrete lining mode in full winter canal for water conveyance, but concrete lining course
Still there is breakoff phenomenon.
Therefore, the channel rigidity lining cutting layer lower surface for just knowing that winter water delivery in people has the frost heaving failure effect of canal bed soil
And it is indefinite and not can determine that the feelings of frost-heave force type and design load to the frost heaving failure mechanism of winter canal for water conveyance lining cutting layer
Under condition, the method for seeking thoroughly to solve the anti-freeze expansion destruction of winter canal for water conveyance be can yet be regarded as a kind of solution Frozen Area winter
The effective ways of water delivery rigidity channel destroying.
The content of the invention
At present, because of the frost heave of canal base soil more than water surface curve, its lower soil body does not freeze the trapezoidal concrete canal of winter water delivery
Knot, frost heave scope only total under part freezing soil, i.e. canal side slope plate reduces on whole canal cross section, namely frost-heave force
Active area reduces.But, whether its destruction is just small, and this is difficult to judge.Because people are also without grasp winter fortune completely
The mechanism of the frost heaving failure of market condition lower trapezoid canal lining layer.
The present invention is for the current people skill unclear to the frost heaving failure mechanism cognition of Frozen Area winter canal for water conveyance
Under art present situation, to solve the problems, such as Frozen Area winter canal for water conveyance because of the channel destroying under canal base soil frost heave action, it is proposed that
A kind of method of the canal for water conveyance frost heaving failure effect of elimination seasonal frost region winter high water level operation.
The present invention without ice sheet and has the Frozen Area of constant water level higher operation trapezoidal just during being applied to whole winter
Property channel designing in, it is ensured that exist without frost-heave force under rigid lining cutting layer, i.e., canal bed soil is because channel water body is incubated under side slope plate
Do not freeze, and the upstanding portion without the protection of channel water body is banketed therefore without frost heave action because of the outer nothing of canal.
The technical solution adopted in the present invention：
The method of the canal for water conveyance frost heaving failure effect that a kind of elimination Frozen Area winter is run without ice sheet, high water level, including
The following aspects：
1）Canal for water conveyance rigidity lining canal cross section uses compound cross-section form, is trapezoidal disconnected below canal bank or levee crown face
Face, and more than canal bank or levee crown face it is rectangular cross section；
2）The characteristics of in order to utilize the specific heat capacity of channel water high, channel water plays insulation effect to canal base soil, reaches canal base soil and exists
Uncongealable purpose of whole phase in winter, so that the frost heave of canal for water conveyance is eliminated, so whole winter channel water plane must not be less than
Canal bank or canal levee crown face；
3）The waterwall canal outside of channel rectangular cross section without after stalk wall more than soil, i.e. canal bank or canal levee crown face without soil, it is natural
Just without the frost heave action of soil.
The described side for eliminating the canal for water conveyance frost heaving failure effect that Frozen Area is run without ice sheet, winter high water level
Method, 1）Design discharge when normally being run by winter calculates the depth of water and determines therefrom that trapezoidal channel groove depth；
2）By annual maximum water supply flow calculate the depth of water of compound cross-section；
3）Channel end regimen condition, operating condition are taken into full account on the basis of the compound cross-section depth of water, it is comprehensive to determine that safety is super
It is high；
4）The depth of water of compound cross-section is total canal depth with safe superelevation sum；
5）The strength checking under annual peak level operating condition is carried out to the dash stalk of selected material, and carries out dash stalk
Against Sliding Stability and antidumping checking computations under effect of water pressure, dash stalk thickness is designed with this.
Beneficial effects of the present invention：
1st, the side that the present invention is acted on for a kind of elimination seasonal frost region winter without the canal for water conveyance frost heaving failure that ice sheet, high water level run
Method, canal for water conveyance uses compound cross-section form, compared with the concrete canal of the arc earth overvoltage used on current big-and-middle-sized channel,
Trapezoidal channel is built in cast-in-place concrete has erection template convenience, simple advantage of constructing.And precast concrete builds trapezoidal channel
Except simple with construction method, the advantage lining section form of the prior art that also construction time is short, progress is fast changes in road
Become（Such as arcuate bottom straight flange slope, U-shaped channel）Be provided to make canal lining layer adapt to the frost heave displacement of Frozen Area canal base with
Reduce frost heaving failure effect.In order to improve the frost heaving resistant damage capability of channel, reduce or adjustment differential frost heave, change concrete
Native plate is cast-in-place concrete lining cutting, or even increases rigidity, and thickness of slab brings up to 10cm even 15cm by 5cm.And other thermal-insulating methods, change
Fill out method and water proof method not only increases new material, and increase new working procedure.Even if taking other antifreeze to burst
Bad method, for winter canal for water conveyance, how on earth is antifreezing expansion effect, need further to investigate.
2nd, the method that the present invention eliminates the canal for water conveyance frost heaving failure effect of seasonal frost region winter high water level operation, proposition is answered
Close form of fracture only increases the basic and new of quantity of masonry under identical water flow by changing the cross-sectional form of channel, not
Material is to make channel canal base soil temperature degree more than zero using the hot specific volume of channel water advantage high, eliminates the frost heave of channel, canal
Also just no longer there are various types of destructions because of base soil frost heave in road.Additionally, precast slab is original all should in channels at different levels
With, it is restricted because not adapting to or adjusting the native differential frost heave of canal base, it is simply possible to use in Small Canal at present.And it is of the invention
Using the accommodation that can also recover precast slab, and thickness of slab is not having the requirement of frost heaving resistant, it is only necessary to meet conventional wanting
Ask.If being incubated in conjunction with other on the basis of the present invention, changing and fill out the anti-freeze expansion execution that can make channel with water proof measure more
It is prominent.
3rd, the present invention is only changed by canal cross section form and remains to keep the requirement of identical waterpower, just using channel water
The larger advantage of specific heat capacity canal base soil is not freezed, also just without frost heave action, so as to fundamentally ensure that Frozen Area
Concrete anti-seepage canal has antiseepage function.If temperature on average Frozen Area higher in the winter time, if High Temperature Permafrost area takes again
Other de-icing methods, the winter canal for water conveyance of Frozen Area would not occur the freeze injury because angrily temperate zone is come and ice trouble.This hair
The attendant advantages of the channel of bright proposed compound cross-section form are to reduce earth volume, quantity of masonry and floor space, and channel
Liner plate can commercialization, easily realize mechanization cross construction.Its direct economic benefit it is clear that and indirectly and social benefit without
Method is estimated.
Brief description of the drawings Fig. 1 is full winter water delivery rigidity lining canal compound cross-section structural representation of the invention；
In figure, label 1 represents channel water upper thread；Label 2 represents cast-in-place or preformed rigid lining cutting layer；3 is rigid waterwall；4 are
Cast-in-place or preformed rigid lining cutting layer base plate；5 is winter normal depth of flow.
Specific embodiment
Below by specific embodiment, technical scheme is described in further detail.
Embodiment 1
Referring to Fig. 1.The present invention eliminates what Frozen Area winter acted on without the canal for water conveyance frost heaving failure that ice sheet, high water level run
Method, including the following aspects：
1）Canal for water conveyance rigidity lining canal cross section uses compound cross-section form, is trapezoidal disconnected below canal bank or levee crown face
Face, and more than canal bank or levee crown face it is rectangular cross section；
2）The characteristics of in order to utilize the specific heat capacity of channel water high, channel water plays insulation effect to canal base soil, reaches canal base soil and exists
Uncongealable purpose of whole phase in winter, so that the frost heave of canal for water conveyance is eliminated, so whole winter channel water plane must not be less than
Canal bank or canal levee crown face；
3）The waterwall canal outside of channel rectangular cross section without after stalk wall more than soil, i.e. canal bank or canal levee crown face without soil, it is natural
Just without the frost heave action of soil.
Embodiment 2
Referring to Fig. 1, the Frozen Area that eliminates of the present embodiment is made without the canal for water conveyance frost heaving failure that ice sheet, winter high water level run
Method, the difference with embodiment 1 is, further：
1）Design discharge when normally being run by winter calculates the depth of water and determines therefrom that trapezoidal channel groove depth；
2）By annual maximum water supply flow calculate the depth of water of compound cross-section；
3）Channel end regimen condition, operating condition are taken into full account on the basis of the compound cross-section depth of water, it is comprehensive to determine that safety is super
It is high；
4）The depth of water of compound cross-section is total canal depth with safe superelevation sum；
5）The strength checking under annual peak level operating condition is carried out to the dash stalk of selected material, and carries out dash stalk
Against Sliding Stability and antidumping checking computations under effect of water pressure, dash stalk thickness is designed with this.It is straight to dash in the case of necessity
Wall carries out the design of foundation.
The present invention in the form of canal for water conveyance is compound cross-section, i.e., below canal bank or canal levee crown face for trapezoidal cross-section canal
More than bank or canal levee crown face it is rectangular cross section, and full winter channel water position not small ditch bank or canal levee crown face.Its principle is utilized
The insulation effect of channel water makes canal dike soil not freeze in the whole phase in winter, and after more than canal bank or canal levee crown face dash stalk wall
It is natural under channel side slopes plate and the presence without frost-heave force after stalk without soil, so as to eliminate canal base soil to the rigid lining cutting of channel
The frost heave action of layer, and channel rigidity liner plate can be prefabricated.Realize channel concrete product ommercialization, can cross construction repair
Channel is built, shortens the duration.
Claims (2)
1. the method that a kind of elimination Frozen Area winter acts on without the canal for water conveyance frost heaving failure that ice sheet, high water level run, its
It is characterised by, including the following aspects：
1）Canal for water conveyance rigidity lining canal cross section uses compound cross-section form, is trapezoidal disconnected below canal bank or canal levee crown face
Face, and more than canal bank or canal levee crown face it is rectangular cross section；
2）The characteristics of in order to utilize the specific heat capacity of channel water high, channel water plays insulation effect to canal base soil, reaches canal base soil and exists
Uncongealable purpose of whole phase in winter, so that the frost heave of canal for water conveyance is eliminated, so whole winter channel water face must not be less than canal
Bank or canal levee crown face；
3）The dash stalk canal outside nothing of channel rectangular cross section is banketed, i.e., without soil after stalk wall more than canal bank or canal levee crown face,
Just without the frost heave action of soil after natural dash stalk.
2. elimination Frozen Area according to claim 1 is broken without the canal for water conveyance frost heave that ice sheet, winter high water level run
The method of bad effect, it is characterised in that：
1）Design discharge when normally being run by winter calculates the depth of water and determines therefrom that trapezoidal channel groove depth；
2）The depth of water for determining compound cross-section is calculated by annual maximum water supply flow；
3）Channel end regimen condition, operating condition are taken into full account on the basis of the compound cross-section depth of water, it is comprehensive to determine that safety is super
It is high；
4）The depth of water of compound cross-section is total canal depth with safe superelevation sum；
5）The strength checking under annual peak level operating condition is carried out to the dash stalk of selected material, dash is designed with this straight
Wall thickness, and carry out Against Sliding Stability and antidumping checking computations of the dash stalk under effect of water pressure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010222.5A CN106759123B (en) | 2017-01-06 | 2017-01-06 | The method for eliminating the canal for water conveyance frost heaving failure effect that Frozen Area winter runs without ice sheet, high water level |
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|---|---|---|---|
| CN201710010222.5A CN106759123B (en) | 2017-01-06 | 2017-01-06 | The method for eliminating the canal for water conveyance frost heaving failure effect that Frozen Area winter runs without ice sheet, high water level |
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| CN106759123A true CN106759123A (en) | 2017-05-31 |
| CN106759123B CN106759123B (en) | 2018-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370056A (en) * | 2022-01-07 | 2022-04-19 | 中基基础工程有限公司 | Construction method, device, terminal and medium for sinking open caisson in severe cold frozen soil area |
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| CN103896521A (en) * | 2014-03-04 | 2014-07-02 | 黑龙江省水利科学研究院 | Preparation method of anti-seepage water delivery tank of channel |
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2017
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| JPH02178409A (en) * | 1988-12-28 | 1990-07-11 | Kobe Steel Ltd | Snow running channel |
| CN1076234A (en) * | 1992-03-12 | 1993-09-15 | 余书超 | Prevent the method for frost crack of irrigation ditch with rigid facing |
| CN104514216A (en) * | 2013-09-26 | 2015-04-15 | 上海市政工程设计研究总院（集团）有限公司 | Fill channel anti-frost heaving and anti-seepage structure and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370056A (en) * | 2022-01-07 | 2022-04-19 | 中基基础工程有限公司 | Construction method, device, terminal and medium for sinking open caisson in severe cold frozen soil area |
| CN114370056B (en) * | 2022-01-07 | 2024-03-29 | 中基基础工程有限公司 | Construction method, device, terminal and medium for sinking well in severe cold frozen soil area |
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| CN106759123B (en) | 2018-11-20 |
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