CN109577122A - A kind of vertical drainage road structure based on electro-osmosis method - Google Patents
A kind of vertical drainage road structure based on electro-osmosis method Download PDFInfo
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- CN109577122A CN109577122A CN201811496759.8A CN201811496759A CN109577122A CN 109577122 A CN109577122 A CN 109577122A CN 201811496759 A CN201811496759 A CN 201811496759A CN 109577122 A CN109577122 A CN 109577122A
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- roadbed
- tgxg
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- cess
- cathode
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A kind of vertical drainage road structure based on electro-osmosis method, it is related to highway bed construction and guarded drainage technical field, outside moisture can not be prevented to enter formation moisture enriched layer inside roadbed in order to solve the prior art, also white-out can not be carried out to the moisture more than needed being trapped in inside roadbed in the thawing phase, the problem of causing moisture enriched layer to cause freeze-thaw damage in Frozen-thawed cycled, weakening roadbed service performance and reduce roadbed service life.Upper roadbed, lower roadbed and roadbed substrate are from top to bottom cascading, roadbed substrate two sides mirror symmetry is provided with rhone, one layer of anode conducting TGXG is equipped in upper roadbed, one layer of cathode conduction TGXG and Duo Gen cess are equipped in lower roadbed, the lower surface of cess abutting cathode conduction TGXG, moisture in the soil body is oriented to rhone after being collected by cess, the cathode of the positive jointed anode conduction TGXG of DC power supply, DC power supply connects cathode conduction TGXG.The present invention is suitable for roadbed.
Description
Technical field
The present invention relates to highway subgrades and guarded drainage technical field, and in particular to a kind of vertical drainage based on electro-osmosis method
Road structure.
Background technique
Seasonal frost region roadbed will form moisture enriched layer after Frozen-thawed cycled, exist so that roadbed moisture content increase,
Modulus reduces, so that serious differential settlement, frost boiling disease occur under the dynamic loads effect that road surface is transmitted, seriously affects
The working condition and service life of roadbed greatly restrict the safety and high efficiency of road, give people's lives and properties
Safety and socio-economic development bring great hidden danger.
Currently, passing through subgrade drainage frequently with two kinds of technologies.One is on the ground, underground construct pumping equipment, pass through
Rainwater, side slope charge for remittance, thawing snow-broth are guided convergence and are discharged by the collaborative work of gutter, gutter, underdrain, seepage well etc.
Outside roadbed range；Another kind be by roadbed self structure carry out special designing, in road structure layer be arranged water barrier into
Row antiseepage.Diversified subgrade drainage improved device and measure have been derived on this basis, such as have been arranged in road bed
Draining, which is slipped through the net, carries out flow adjusting and sandstone filtering, or the connection method of water discharge member is changed to elasticity by existing rigid connection
Connection also or below native base of building the road is arranged for absorbing or being isolated seepage in underground to avoid the destruction under external force
Hygroscopic fibre material and coarse-grained soil to accelerate subgrade drainage to consolidate, and are mixed the fiber soil to be formed and filled out by colloid layer
It builds in roadbed, prevents washing away for rainfall infiltration side slope.These devices and measure to a certain extent can be by Lu Biao and roads
Ponding part discharge in base, and completely cut off roadbed and contacted with underground water and capillary water, roadbed moisture constant is kept, roadbed is maintained
Stablize.But practical engineering experience summarizes discovery, and subgrade drainage methods all at present all has limitation, can not really prevent
Outside moisture under congelation enter roadbed inside formed moisture enriched layer, also can not to melt the phase because can not naturally osmotic row
It is trapped in moisture more than needed inside roadbed out and carries out white-out, the roadbed that can only be left departing from optimum humidity state is subsequent
Serious frozen swell and melt settlement occurs in unfreezing to destroy, its working performance is caused sharply to decline, service life shortens rapidly, influences
Road operation state.
Summary of the invention
The purpose of the present invention is to solve the prior arts, and outside moisture can not be prevented to enter in roadbed under congelation
Portion forms moisture enriched layer, also can not carry out white-out to the moisture more than needed being trapped in inside roadbed in the thawing phase, cause moisture rich
Collection layer causes serious freeze-thaw damage in subsequent Frozen-thawed cycled, weakens roadbed service performance and reduces roadbed service life
Problem, to provide a kind of vertical drainage road structure based on electro-osmosis method.
A kind of vertical drainage road structure based on electro-osmosis method of the present invention, including upper roadbed 3, anode conducting geotechnique
Grid 4, lower roadbed 5, cathode conduction TGXG 6, more cesses 7, rhone 8, roadbed substrate 9, DC power supply and
Humidity sensor；
Upper roadbed 3, lower roadbed 5 and roadbed substrate 9 are from top to bottom cascading, 9 two sides mirror symmetry of roadbed substrate
It is provided with rhone 8, one layer of anode conducting TGXG 4 is equipped in upper roadbed 3, the conductive soil of one layer of cathode is equipped in lower roadbed 5
Work grid 6 and Duo Gen cess 7, cess 7 are close to the lower surface of cathode conduction TGXG 6, the water in the soil body
Divide and is oriented to rhone 8 after being collected by cess 7；
When the humidity of upper roadbed 3 and lower roadbed 5 that humidity sensor detects is all larger than design humidity, DC power supply is opened
It is dynamic；The cathode of the positive jointed anode conduction TGXG 4 of DC power supply, DC power supply connects cathode conduction TGXG 6.
Preferably, anode conducting TGXG 4 and cathode conduction TGXG 6 the distance of vertical direction be 20cm~
40cm。
Preferably, anode conducting TGXG 4 and cathode conduction TGXG 6 are by reinforced grating incorporation conductive carbon fibres
Dimension is made.
Preferably, cess 7 is cylinder type hollow drainpipe, and cess 7 is close to the conductive geotechnological lattice of cathode
The side wall of 6 side of grid is equipped with round hole.
Preferably, further include geotextiles, wrap up cess 7 using geotextiles.
It preferably, further include top course 1 and sub-surface 2；
Top course 1 is located at top layer, and sub-surface 2 is between top course 1 and upper roadbed 3.
Preferably, DC power supply is provided by solar panel or road photovoltaic generating system.
Beneficial effects of the present invention:
1, the present invention is a kind of vertical drainage road structure based on electro-osmosis method, is suitable for rich groundwater, unfreezing
The subgrade drainage in significant area, can be by the discharge of the moisture in the water-enriched layer to be formed is gathered in migration under unfreezing inside roadbed
Roadbed, so that roadbed is maintained at optimum humidity state, it is ensured that roadbed has good working order；
2. present invention only requires two layers of conductive TGXG is laid in roadbed, compared to being required in current subgrade construction
It is laid with for one layer of TGXG and increases only one layer of TGXG, working procedure only increases together, and construction method is easy；
3. the conductive TGXG that the present invention uses not only had been able to achieve original reinforcement roadbed function, but also was able to achieve new draining
Function is killed two birds with one stone.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the vertical drainage road structure based on electro-osmosis method described in specific embodiment one
Figure；
Fig. 2 is the structural schematic diagram of the conductive TGXG in specific embodiment one；
Fig. 3 is the structural schematic diagram of the cess in specific embodiment four.
Specific embodiment
Specific embodiment 1: illustrating present embodiment, a kind of base described in present embodiment in conjunction with Fig. 1 and Fig. 2
In the vertical drainage road structure of electro-osmosis method, including the conductive geotechnique of upper roadbed 3, anode conducting TGXG 4, lower roadbed 5, cathode
Grid 6, more cesses 7, rhone 8, roadbed substrate 9, DC power supply and humidity sensor；
Upper roadbed 3, lower roadbed 5 and roadbed substrate 9 are from top to bottom cascading, 9 two sides mirror symmetry of roadbed substrate
It is provided with rhone 8, one layer of anode conducting TGXG 4 is equipped in upper roadbed 3, the conductive soil of one layer of cathode is equipped in lower roadbed 5
Work grid 6 and Duo Gen cess 7, cess 7 are close to the lower surface of cathode conduction TGXG 6, the water in the soil body
Divide and is oriented to rhone 8 after being collected by cess 7；
When the humidity of upper roadbed 3 and lower roadbed 5 that humidity sensor detects is all larger than design humidity, DC power supply is opened
It is dynamic；The cathode of the positive jointed anode conduction TGXG 4 of DC power supply, DC power supply connects cathode conduction TGXG 6.
It further include top course 1 and sub-surface 2 in present embodiment；
Top course 1 is located at top layer, and sub-surface 2 is between top course 1 and upper roadbed 3.
Roadbed substrate 9 is cutting or embankment.
Anode conducting TGXG 4 is identical with the structure of cathode conduction TGXG 6, as shown in Figure 2.
The principle of the present invention: anode conducting TGXG 4 connects DC power anode, and (power supply can be mentioned by solar panel
For), cathode conduction TGXG 6 connects DC power cathode, and electric current is via DC power supply, anode conducting TGXG 4, upper road
3 partial regions of bed, 5 partial region of lower roadbed, cathode conduction TGXG 6 form closed circuit；Anode conducting TGXG 4 with
3 partial region of upper roadbed and lower 5 partial region of roadbed among cathode conduction TGXG 6 generate electric field, and direction of an electric field is by sun
Extremely conductive TGXG 4 is directed toward cathode conduction TGXG 6.Electroosmosis will occur for the unsaturated soil in electric field region,
Moisture in the soil body will be migrated from anode to cathodic migration from anode conducting TGXG 4 to cathode conduction TGXG 6,
And it is collected after reaching at cathode conduction TGXG 6 by cess 7 and is oriented to outside roadbed by rhone.
Specific embodiment 2: present embodiment is to a kind of based on the vertical of electro-osmosis method described in specific embodiment one
Draining road structure is described further, and in present embodiment, anode conducting TGXG 4 and cathode conduction TGXG 6 exist
The distance of vertical direction is 20cm~40cm.
Specific embodiment 3: present embodiment is to a kind of based on the vertical of electro-osmosis method described in specific embodiment two
Draining road structure is described further, and in present embodiment, anode conducting TGXG 4 and cathode conduction TGXG 6 are equal
It is made of reinforced grating incorporation conductive carbon fibre.To have good electric conductivity.Conductive carbon fibre is mixed using reinforced grating
Not only it had been able to achieve original reinforcement roadbed function, but also has been able to achieve new drain function.
Specific embodiment 4: illustrating present embodiment in conjunction with Fig. 3, present embodiment is to specific embodiment three
A kind of vertical drainage road structure based on electro-osmosis method is described further, and in present embodiment, cess 7 is
Cylinder type hollow drainpipe, side wall of the cess 7 close to 6 side of cathode conduction TGXG are equipped with round hole.It is porous
Drainpipe 7 bores round hole by cylinder type hollow drainpipe and forms.There is round hole side when laying upward, no round hole side court
Under.
Further include geotextiles in present embodiment, wraps up cess 7 using geotextiles.Geotextiles play anti-filter
Effect prevents soil from entering cess 7 by round hole, blocks round hole.
A kind of construction method of the vertical drainage road structure based on electro-osmosis method the following steps are included:
Step 1: determining the position for the moisture enriched layer that freeze thawing is formed first, can be adjusted by indoor model test or scene
It grinds to obtain the position that the moisture enriched layer to be formed is assembled in region roadbed water translocation under unfreezing；When moisture enriched layer position
20~60cm below upper roadbed top surface, then anode conducting TGXG should be located at the 20cm of upper roadbed top surface or less, cathode
Conductive TGXG should be located at the 60cm of upper roadbed top surface or less.
Step 2: after the completion of cutting or embankments construction, the lower total 50cm of roadbed, which divides two layers, to be filled, and first placement grinding 20cm is thick
One layer, the cess 7 wrapped up by geotextiles is then laid in the vertical road direction of advance in surface, and in porous draining
Pipe surface is laid with cathode conduction TGXG 6, and then one layer of placement grinding 30cm thickness, in this layer along perpendicular after filling
Histogram lays a humidity sensor to every 10cm；
Step 3: after lower roadbed construction, the upper total 30cm of roadbed, which equally divides two layers, to be filled, first placement grinding 10cm thickness
One layer, and a humidity sensor is laid on surface, it is then laid with anode conducting TGXG 4, then placement grinding 20cm is thick
One layer；
Step 4: two rhones 8 are symmetrically dug in the two sides of cutting or embankment；
Step 4: by anode conducting TGXG and cathode conduction TGXG be respectively connected to DC power supply anode and
Cathode, and humidity sensor signal is accessed into power-supply system, when monitoring that humidity is greater than design humidity, just start DC power supply
Electric osmose is carried out, excessive moisture is discharged, roadbed moisture content then disconnects power supply after dropping to optimum moisture content immediately, stops electric osmose.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
Claims (7)
1. a kind of vertical drainage road structure based on electro-osmosis method, which is characterized in that including upper roadbed (3), anode conducting geotechnique
Grid (4), lower roadbed (5), cathode conduction TGXG (6), more cesses (7), rhone (8), roadbed substrate
(9), DC power supply and humidity sensor；
Upper roadbed (3), lower roadbed (5) and roadbed substrate (9) are from top to bottom cascading, roadbed substrate (9) two sides mirror image
It is symmetrically arranged with rhone (8), one layer of anode conducting TGXG (4) is equipped in upper roadbed (3), is equipped with one in lower roadbed (5)
Layer cathode conduction TGXG (6) He Duogen cess (7), cess (7) are close to cathode conduction TGXG (6)
Lower surface, the moisture in the soil body is oriented to rhone (8) after being collected by cess (7)；
When the humidity of upper roadbed (3) and lower roadbed (5) that humidity sensor detects is all larger than design humidity, DC power supply is opened
It is dynamic；The cathode of the positive jointed anode conduction TGXG (4) of DC power supply, DC power supply connects cathode conduction TGXG
(6)。
2. a kind of vertical drainage road structure based on electro-osmosis method according to claim 1, which is characterized in that the anode
Conductive TGXG (4) and cathode conduction TGXG (6) are 20cm~40cm in the distance of vertical direction.
3. a kind of vertical drainage road structure based on electro-osmosis method according to claim 1, which is characterized in that the anode
Conductive TGXG (4) and cathode conduction TGXG (6) are made of reinforced grating incorporation conductive carbon fibre.
4. a kind of vertical drainage road structure based on electro-osmosis method according to claim 1, which is characterized in that described porous
Drainpipe (7) is cylinder type hollow drainpipe, and cess (7) is on the side wall of cathode conduction TGXG (6) side
Equipped with round hole.
5. a kind of vertical drainage road structure based on electro-osmosis method according to claim 1, which is characterized in that further include soil
Work cloth wraps up cess (7) using geotextiles.
6. a kind of vertical drainage road structure based on electro-osmosis method according to claim 1, which is characterized in that further include road
Face surface layer (1) and sub-surface (2)；
Top course (1) is located at top layer, and sub-surface (2) is located between top course (1) and upper roadbed (3).
7. a kind of vertical drainage road structure based on electro-osmosis method according to claim 1, which is characterized in that DC power supply
It is provided by solar panel or road photovoltaic generating system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644309A (en) * | 2019-09-26 | 2020-01-03 | 山东大学 | Roadbed drainage structure, system and construction method |
| CN111827257A (en) * | 2020-06-28 | 2020-10-27 | 河海大学 | Self-drainage solidified soil roadbed structure and construction method |
| CN115976899A (en) * | 2022-12-28 | 2023-04-18 | 河北工业大学 | Geogrid capable of actively regulating humidity and accurately judging catastrophe and application thereof |
| CN117403495A (en) * | 2023-12-11 | 2024-01-16 | 中南大学 | Embankment drainage structures and reinforced composite embankment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20190405 |