CN115506329A - Method for treating frost heaving and slurry turning of roadbed in frozen soil area - Google Patents
Method for treating frost heaving and slurry turning of roadbed in frozen soil area Download PDFInfo
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- CN115506329A CN115506329A CN202210937011.7A CN202210937011A CN115506329A CN 115506329 A CN115506329 A CN 115506329A CN 202210937011 A CN202210937011 A CN 202210937011A CN 115506329 A CN115506329 A CN 115506329A
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- 239000002689 soil Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002002 slurry Substances 0.000 title claims abstract description 25
- 238000005370 electroosmosis Methods 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000523 sample Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 13
- 201000010099 disease Diseases 0.000 claims description 11
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 8
- 239000011707 mineral Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000007646 directional migration Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 235000010755 mineral Nutrition 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001932 seasonal effect Effects 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
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Classifications
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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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/027—Investigation of foundation soil in situ before construction work by investigating properties relating to fluids in the soil, e.g. pore-water pressure, permeability
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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
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for treating frost heaving and slurry turning of a roadbed in a frozen soil area, which comprises the following steps of: step one, leveling a roadbed; secondly, the cathode and anode electrode assemblies penetrate through the mounting seat and are arranged in the punched hole positions in a parallel dislocation mode; according to the invention, the soil moisture sensor probe and the temperature sensor probe are arranged between the electrodes, so that the moisture content and the temperature of roadbed soil bodies in a corresponding electroosmosis area can be accurately measured, when the moisture content is reduced to a specified value, a power supply is cut off in time, a large amount of power supply energy is avoided, meanwhile, when the temperature is lower, the heating rod can be used for heating, the fluidity of an internal water body is ensured, and therefore, the electroosmosis effect is improved.
Description
Technical Field
The invention belongs to the technical field of frozen soil treatment, and relates to a method for treating frost heaving and slurry turning of a roadbed in a frozen soil area.
Background
The frozen soil is soil or rock with the temperature lower than 0 ℃ and containing ice, and can be divided into perennial frozen soil and seasonal frozen soil according to the freezing time of the soil body, wherein the seasonal frozen soil is widely distributed in China, in recent years, along with the rapid development of the economy of China, a large number of constructions of national major cold area projects such as 'Qinghai-Tibet roads' and 'Chuan-Tibet roads' and the like enable the status, the action and the benefit of a road traffic industry in the national economy to be increasingly obvious, but meanwhile, the problem of diseases of the roadbed in the seasonal frozen area is not ignored, the frost heaving slurry turning disease is particularly obvious, the roadbed is frozen due to the temperature reduction in winter, in the spring thawing stage, water at the upper part of the roadbed cannot migrate due to the obstruction of a lower freezing layer, so that the upper layer is stagnant water, the water content of the soil body of the roadbed is increased, and the service life of the roadbed is seriously influenced.
For treating the subgrade grout-turning disease, the soft interlayer in the subgrade is removed by the following methods in the prior construction field, and the subgrade is rolled again after the benign soil is filled; (2) Turning over and drying over wet soil at the slurry turning part in the roadbed, uniformly mixing, and rolling again; (3) For the road section with urgent treatment time, quicklime powder can be mixed, stirred uniformly, and filled and rolled again after the water content is proper. However, the above technologies require a large amount of filling and digging treatment on the roadbed, are time-consuming, labor-consuming and high in economic cost, and are not suitable for the modern project construction requirements of high efficiency, low cost and high quality.
Application number 201910951265.2 discloses a method for treating frost heaving and grout turning of a roadbed in a frozen soil area, based on an electroosmosis drainage principle, a conductive alloy is inserted into the roadbed with severe frost heaving and grout turning diseases to serve as electrodes, so that water in the roadbed transversely and directionally migrates to two sides from the middle of the roadbed under the action of an electric field force, on-off time of a power supply is accurately controlled through a soil water sensor arranged between the electrodes, and water content of a stagnant water layer in the roadbed is reduced through multi-stage transverse continuous drainage, so that the aim of treating frost heaving and grout turning of the roadbed is fulfilled.
The invention can effectively drain water based on the electroosmosis drainage principle, but still has the following defects that firstly, the mobility of water in frozen soil is poor, the efficiency of draining to two sides by adopting electroosmosis drainage is low, meanwhile, the internal temperature is low, the conductivity of the water body is poor, the circuit conductivity of the electroosmosis drainage is insufficient, the drainage is difficult, and the drainage effect is poor.
Disclosure of Invention
The invention aims to provide a method for treating frost heaving and slurry turning of a roadbed in a frozen soil area, and aims to solve the problems in the background art.
The purpose of the invention can be realized by the following technical scheme:
a horizontal grading electroosmosis drainage method for treating frost heaving and slurry turning of a roadbed in a frozen soil area comprises the following steps:
step one, leveling a roadbed: detecting the soil condition of the roadbed, measuring the depth of influence of the roadbed slurry turning disease, using mechanical equipment to treat a hardened surface layer of the roadbed at a road section with the roadbed slurry turning disease, exposing an internal base layer, and cleaning the site to facilitate equipment arrangement;
secondly, punching holes on the surface of the roadbed, paving a layer of isolation pad on the punched processed roadbed surface, wherein a mounting seat of the isolation pad is arranged opposite to the punching hole position, a cathode and anode assembly penetrates through the mounting seat and is arranged in the punched hole position in a parallel dislocation mode, the cathode and anode assembly is driven into a roadbed soil body perpendicular to the treated roadbed surface, and the cathode and anode assembly is respectively connected with the cathode and anode assembly through a cable and a material guide pipe and extends to a current input/output port of an electroosmosis instrument;
thirdly, connecting a soil moisture sensor probe and a temperature sensor probe inside the cathode-anode electrode assembly to an intelligent data recorder through a first data transmission line and a second data lead, so as to detect the moisture content and the temperature of soil at each position of a detected roadbed;
step four, connecting an electroosmosis instrument into a storage battery, starting a positive electrode assembly and a negative electrode assembly to record initial roadbed soil moisture content and initial temperature of a first electroosmosis area, turning on a switch button of the electroosmosis instrument, heating the electroosmosis area by a heating rod in the positive electrode assembly and the negative electrode assembly, simultaneously introducing mineral salt powder through a material guide pipe, recording the roadbed soil moisture content once every 30min in the electroosmosis drainage process, and turning off the switch button of the electroosmosis instrument when the moisture content of soil on two sides of an anode is reduced to a specified moisture content value of a corresponding road section and tends to be stable;
step five, after the first electroosmosis stage is finished, connecting the cathode and the anode of the second electroosmosis stage for electroosmosis drainage, closing a switch button of an electroosmosis instrument when the water content is reduced to a specified value and tends to be stable, repeating the steps until the electroosmosis drainage is finished at the outermost electrode of the roadbed, naturally evaporating the water migrated to the slope in the convection of the air inside and outside the roadbed, and finally reducing the water content of the soil body of the roadbed so as to achieve the purpose of treating the frost heaving and slurry turning of the roadbed;
and sixthly, after the electroosmotic drainage work of the roadbed is finished, recovering, summarizing and arranging the soil moisture sensor, the temperature sensor probe, the data transmission line and the cable, burying the cathode and anode bars and the heating bar in the roadbed to play a role of reinforcing the whole strength of the roadbed, wherein a small number of gaps exist around the anode due to the influence of transverse directional migration of moisture from the anode to the cathode, the anode is not tightly contacted with a soil body, grouting is needed to be injected into the anode of the roadbed for reinforcement before burying, and after grouting is finished, the roadbed surface layer is filled and constructed according to construction specifications and traffic is recovered.
In foretell a method of administering frozen soil district road bed frost heaving and thick liquid that turns over, negative and positive electrode subassembly comprises support frame, negative and positive electrode stick, heating rod, passage, soil moisture sensor probe and temperature sensor probe, the bottom fixedly connected with negative and positive motor stick of support frame, its the heating rod is provided with two sets ofly, and the symmetry sets up the both sides at negative and positive motor stick respectively, passage, soil moisture sensor probe and temperature sensor probe set up the avris at negative and positive motor stick.
In the method for treating frost heaving and slurry turning of the roadbed in the frozen soil area, the cathode and anode electrode rods adopt hot rolled steel bars HPB300, the design values of tensile strength and compressive strength are respectively set, the diameter is 20mm, and the length of the electrode rods is 80cm.
In the method for treating frost heaving and slurry turning of the roadbed in the frozen soil area, the storage batteries are supplied by solar power generation systems on two sides of the road, and the output voltage and the current intensity of the storage batteries are determined according to the soil components and the water content of the treated road section.
In the method for treating frost heaving and slurry turning of the roadbed in the frozen soil area, in the step 2, the arrangement of the cathode and anode electrode assemblies is that the transverse and longitudinal distances of the electrodes are 1m, and the insertion depth of the electrodes is 60-80cm below the top of the roadbed base layer.
In the method for treating frost heaving and slurry turning of the roadbed in the frozen soil area, in the step 3, the soil moisture sensors are arranged at the transverse and longitudinal intervals of 1m, and the arrangement depth is 40-60cm below the top of the roadbed base layer.
Compared with the prior art, the method for treating frost heaving and slurry turning of the roadbed in the frozen soil area has the advantages that:
1. based on the principle of an electroosmosis method, the cathode and the anode are inserted into the roadbed with serious slurry-turning diseases, and water content of a stagnant water layer in the roadbed is reduced through multi-stage transverse continuous drainage, so that a large amount of excavation and filling work of the roadbed is avoided in the whole treatment process, the construction period is short, the treatment efficiency is high, the process is simple and easy to operate, a cable for electroosmosis can be recycled, and economic cost is saved;
2. through laying soil moisture sensor probe and temperature sensor probe between the electrode, can be accurate measure moisture content and the temperature that corresponds the regional road bed soil body of electroosmosis, when the moisture content reduces to the specified value, in time cut off the power, avoid power energy to consume in a large number, simultaneously when the temperature is lower, the accessible heating rod heats, guarantee the mobility of inside water, thereby improve the electroosmosis effect, mineral salt is sneaked into to soil still to the baffle pipe simultaneously, mineral salt mixes with inside moisture, reduce the freezing point of water, improve its frost resistance, simultaneously still can improve the electric conductivity of negative and positive pole stick, and then improve the electroosmosis effect, the drainage effect is and better.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
A horizontal grading electroosmosis drainage method for treating frost heaving and slurry turning of a roadbed in a frozen soil area comprises the following steps:
step one, leveling a roadbed: detecting the soil condition of the roadbed, measuring the depth of influence of the roadbed slurry turning disease, using mechanical equipment to treat a hardened surface layer of the roadbed at a road section with the roadbed slurry turning disease, exposing an internal base layer, and cleaning the site to facilitate equipment arrangement;
secondly, punching holes in the surface of the roadbed, then paving a layer of isolation pad on the punched treated roadbed surface, wherein a mounting seat of the isolation pad is arranged opposite to the punched hole site, a cathode-anode assembly penetrates through the mounting seat and is arranged in the punched hole site in a parallel dislocation manner, and is driven into a roadbed soil body vertical to the treated roadbed surface, and the cathode-anode assembly is respectively connected with the cathode-anode assembly through a cable and a material guide pipe and extends to a current input/output port of an electroosmosis instrument;
specifically, negative and positive electrode subassembly comprises support frame, negative and positive electrode stick, heating rod, passage, soil moisture sensor probe and temperature sensor probe, the bottom fixedly connected with negative and positive motor stick of support frame, its the heating rod is provided with two sets ofly, and the symmetry sets up respectively in the both sides of negative and positive motor stick, passage, soil moisture sensor probe and temperature sensor probe set up the avris at negative and positive motor stick.
The cathode and anode electrode rods adopt hot rolled steel bars HPB300, the design value of tensile strength and the design value of compressive strength, the diameter is 20mm, the length of the electrode rod is 80cm, and the design value f of the tensile strength of the cathode and anode electrode rods y ＝270N/mm 2 Design value of compressive Strength f' y ＝270N/mm 2 。
The support frame support structure, the top is insulating component, the support frame is to the negative and positive electrode stick, the heating rod, the passage, soil moisture sensor probe and temperature sensor probe install the support, the heating rod heats the electric osmosis region of frozen soil, improve the mobility of inside water, thereby improve the effect of electric osmosis, the heating rod also supplies power through the battery, the passage guides mineral salt, after the negative and positive electrode stick has been installed, the accessible is direct to add mineral salt through the feed port of ground basic unit, mineral salt enters into the electric osmosis region along the passage, and then dissolve in the regional water of electric osmosis, because add thermal treatment in the frozen soil, consequently, can improve the dissolution rate, after the dissolution finishes, can improve the salt content of inside water, reduce the freezing point of water, improve its frost resistance, still can improve the electric conductivity of negative and positive electrode stick simultaneously, and then improve the electric osmosis effect, the drainage effect is better.
The arrangement of the cathode and anode electrode assemblies adopts the arrangement that the transverse and longitudinal intervals of the electrodes are all 1m, and the insertion depth of the electrodes is 60-80cm below the top of the roadbed base.
Thirdly, connecting a soil moisture sensor probe and a temperature sensor probe inside the cathode-anode electrode assembly to an intelligent data recorder through a first data transmission line and a second data lead, so as to detect the moisture content and the temperature of soil at each position of a detected roadbed;
the soil moisture sensors are arranged at the transverse and longitudinal intervals of 1m, and the arrangement depth is 40-60cm below the top of the roadbed base.
Step four, connecting an electroosmosis instrument into a storage battery, starting a positive electrode assembly and a negative electrode assembly to record initial roadbed soil moisture content and initial temperature of a first electroosmosis area, turning on a switch button of the electroosmosis instrument, heating the electroosmosis area by a heating rod in the positive electrode assembly and the negative electrode assembly, simultaneously introducing mineral salt powder through a material guide pipe, recording the roadbed soil moisture content once every 30min in the electroosmosis drainage process, and turning off the switch button of the electroosmosis instrument when the moisture content of soil on two sides of an anode is reduced to a specified moisture content value of a corresponding road section and tends to be stable;
specifically, under the action of an electric field force, moisture in the roadbed transversely and directionally migrates from an anode in the middle of the roadbed to cathodes on two sides, so that the purpose of drainage consolidation is achieved.
Step five, after the first electroosmosis stage is finished, connecting the cathode and the anode of the second electroosmosis stage for electroosmosis drainage, closing a switch button of an electroosmosis instrument when the water content is reduced to a specified value and tends to be stable, repeating the steps until the electroosmosis drainage is finished at the outermost electrode of the roadbed, naturally evaporating the water migrated to the slope in the convection of the air inside and outside the roadbed, and finally reducing the water content of the soil body of the roadbed so as to achieve the purpose of treating the frost heaving and slurry turning of the roadbed;
the storage batteries are supplied by solar power generation systems on two sides of the road, and the output voltage and the current intensity of the storage batteries are determined according to soil components and water content of the road section to be treated.
And sixthly, after the electroosmotic drainage work of the roadbed is finished, recovering, summarizing and arranging the soil moisture sensor, the temperature sensor probe, the data transmission line and the cable, burying the cathode and anode bars and the heating bar in the roadbed to play a role of reinforcing the whole strength of the roadbed, wherein a small number of gaps exist around the anode due to the influence of transverse directional migration of moisture from the anode to the cathode, the anode is not tightly contacted with a soil body, grouting is needed to be injected into the anode of the roadbed for reinforcement before burying, and after grouting is finished, the roadbed surface layer is filled and constructed according to construction specifications and traffic is recovered.
Specifically, the material that negative and positive electrodes adopted in the electroosmosis process is hot rolling reinforcing bar HPB300, and relative to other materials, reinforcing bar low cost and easy acquisition, when driving into the road bed soil body, deformation is little because of the intensity is high, and in the circular telegram drainage process, electrode corrosion is less relatively, the non-staining environment, after the electroosmosis, remain the reinforcing bar in the road bed soil body and the concretion of grout, play the effect of muscle, can improve the bulk strength of road bed.
Those not described in detail in this specification are well within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (6)
1. A horizontal grading electroosmosis drainage method for treating frost heaving and slurry turning of a roadbed in a frozen soil area comprises the following steps:
step one, leveling a roadbed: detecting the soil condition of the roadbed, measuring the depth of influence of the roadbed slurry turning disease, using mechanical equipment to treat a hardened surface layer of the roadbed at a road section with the roadbed slurry turning disease, exposing an internal base layer, and cleaning the site to facilitate equipment arrangement;
secondly, punching holes on the surface of the roadbed, paving a layer of isolation pad on the punched processed roadbed surface, wherein a mounting seat of the isolation pad is arranged opposite to the punching hole position, a cathode and anode assembly penetrates through the mounting seat and is arranged in the punched hole position in a parallel dislocation mode, the cathode and anode assembly is driven into a roadbed soil body perpendicular to the treated roadbed surface, and the cathode and anode assembly is respectively connected with the cathode and anode assembly through a cable and a material guide pipe and extends to a current input/output port of an electroosmosis instrument;
thirdly, connecting a soil moisture sensor probe and a temperature sensor probe in the cathode-anode electrode assembly to an intelligent data recorder through a first data transmission line and a second data lead, so as to detect the moisture content and the temperature of the soil body at each position of the roadbed;
step four, connecting an electroosmosis instrument into a storage battery, starting a positive electrode assembly and a negative electrode assembly to record initial roadbed soil moisture content and initial temperature of a first electroosmosis area, turning on a switch button of the electroosmosis instrument, heating the electroosmosis area by a heating rod in the positive electrode assembly and the negative electrode assembly, simultaneously introducing mineral salt powder through a material guide pipe, recording the roadbed soil moisture content once every 30min in the electroosmosis drainage process, and turning off the switch button of the electroosmosis instrument when the moisture content of soil on two sides of an anode is reduced to a specified moisture content value of a corresponding road section and tends to be stable;
step five, after the first electroosmosis stage is finished, connecting the cathode and the anode of the second electroosmosis stage for electroosmosis drainage, closing a switch button of an electroosmosis instrument when the water content is reduced to a specified value and tends to be stable, repeating the steps until the electroosmosis drainage is finished at the outermost electrode of the roadbed, naturally evaporating the water migrated to the slope in the convection of the air inside and outside the roadbed, and finally reducing the water content of the soil body of the roadbed so as to achieve the purpose of treating the frost heaving and slurry turning of the roadbed;
and step six, after the electroosmotic drainage work of the roadbed is finished, the soil moisture sensor, the temperature sensor probe, the data transmission line and the cable are recovered, summarized and sorted, the cathode electrode bar and the anode electrode bar and the heating bar are embedded in the roadbed to play a role of reinforcing ribs, so that the overall strength of the roadbed is enhanced, however, due to the influence of transverse directional migration of moisture from the anode to the cathode, a few gaps exist around the anode and are not in tight contact with a soil body, therefore, slurry needs to be injected into the anode of the roadbed before embedding for reinforcement, and after grouting is finished, the roadbed surface layer is filled and recovered to be communicated with a vehicle according to construction specifications.
2. The method according to claim 1, wherein the cathode and anode electrode assembly comprises a support frame, cathode and anode rods, a heating rod, a material guiding tube, a soil moisture sensor probe and a temperature sensor probe, the cathode and anode rods are fixedly connected to the bottom of the support frame, the heating rod is provided with two groups, the two groups are symmetrically arranged on two sides of the cathode and anode rods, and the material guiding tube, the soil moisture sensor probe and the temperature sensor probe are arranged on the side of the cathode and anode rods.
3. The method according to claim 1, wherein the cathode and anode rods are hot rolled steel bar HPB300, the tensile strength and compressive strength are designed values, the diameter is 20mm, and the length of the electrode rod is 80cm.
4. The method of claim 1, wherein the storage battery is supplied by solar power generation systems on both sides of the road, and the output voltage and current intensity are determined according to soil composition and water content in the treated section.
5. The method according to claim 1, wherein in step 2, the arrangement of the cathode and anode electrode assemblies is such that the distance between the electrodes in the transverse direction and the longitudinal direction is 1m, and the depth of the electrode insertion is 60-80cm below the top of the roadbed base layer.
6. The method according to claim 1, wherein in step 3, the soil moisture sensors are arranged at a distance of 1m in both the transverse and longitudinal directions and at a depth of 40-60cm below the top of the roadbed base.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956356A (en) * | 2010-09-01 | 2011-01-26 | 中国科学院寒区旱区环境与工程研究所 | Novel subgrade structure for preventing road frost boiling in cold area |
| CN107447746A (en) * | 2017-09-11 | 2017-12-08 | 中圣科技(江苏)有限公司 | A kind of heating system and installation method for preventing and treating seasonal frozen ground subgrade frost heave disaster |
| CN110629741A (en) * | 2019-10-08 | 2019-12-31 | 兰州交通大学 | Method for treating frost heaving and slurry turning of roadbed in frozen soil area |
| CN112012063A (en) * | 2020-08-13 | 2020-12-01 | 中国地质大学（武汉） | Device for preventing pavement from being turned into slurry for roads in cold regions |
-
2022
- 2022-08-05 CN CN202210937011.7A patent/CN115506329A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956356A (en) * | 2010-09-01 | 2011-01-26 | 中国科学院寒区旱区环境与工程研究所 | Novel subgrade structure for preventing road frost boiling in cold area |
| CN107447746A (en) * | 2017-09-11 | 2017-12-08 | 中圣科技(江苏)有限公司 | A kind of heating system and installation method for preventing and treating seasonal frozen ground subgrade frost heave disaster |
| CN110629741A (en) * | 2019-10-08 | 2019-12-31 | 兰州交通大学 | Method for treating frost heaving and slurry turning of roadbed in frozen soil area |
| CN112012063A (en) * | 2020-08-13 | 2020-12-01 | 中国地质大学（武汉） | Device for preventing pavement from being turned into slurry for roads in cold regions |
Non-Patent Citations (2)
| Title |
|---|
| 巩丽丽等: "季节性冻土区人工盐化路基冻胀模型试验", 《中国地质灾害与防治学报》, vol. 30, no. 3, pages 129 - 135 * |
| 巩丽丽等: "季节性冻土区路基土体冻胀影响因素灰色关联分析", 《水利水运工程学报》, no. 2019, pages 28 - 34 * |
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