CN104452738A - Construction method for existing dyke soft foundation electrochemical treatment - Google Patents
Construction method for existing dyke soft foundation electrochemical treatment Download PDFInfo
- Publication number
- CN104452738A CN104452738A CN201410689765.0A CN201410689765A CN104452738A CN 104452738 A CN104452738 A CN 104452738A CN 201410689765 A CN201410689765 A CN 201410689765A CN 104452738 A CN104452738 A CN 104452738A
- Authority
- CN
- China
- Prior art keywords
- electrode
- dyke
- concentration
- electrodes
- soft
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
Abstract
The invention discloses a construction method for existing dyke soft foundation electrochemical treatment and belongs to the technical field of dyke soft foundation reinforcing engineering. A chemical solution is poured into the peripheries of electrodes to increase the contents of a gel object (Fe(OH)3) and a sediment (Mg(OH)2) for an electrochemical reaction and improve the reinforcing effect of a soil body and shorten the reinforcing time. By means of the combination of the electrochemical solution and the electrochemical reaction, the distance between two rows of electrodes can be increased so as to save materials for experiments. Grooves are reserved in the peripheries of the electrodes, the chemical solution is conveniently poured into the soil body on the peripheries of the electrodes in the construction process, and the concentration of the chemical solution in the soil body on the peripheries of the electrodes is conveniently measured. The positive electrodes and the negative electrodes of a power source are converted and the chemical solution is replaced, so that the electrochemical reaction of the electrodes in the soil body is more sufficient, the reinforcing range is wide, and reinforcing effect is more uniform. The construction method for the existing dyke soft foundation electrochemical treatment is simple in implementation process, high in operability, obvious in economic benefits and remarkable in treatment effect.
Description
Technical field
The invention belongs to dykes and dams Soft Soils Consolidation in A technical field, be specifically related to the construction method of the soft based electrochemical process of a kind of existing dyke.
Background technology
At present for runing road, the technological means of dyke building settlement of soft foundation process mainly contains: substrate slurry injection technique, soil body replacement technique and pile foundation reinforcement technology etc.The treatment of soft foundation of dyke building, certain otherness is there is with the process of the soft base of ordinary highway, dyke building is except settlement Control standard, levee body is also the emphasis merited attention in the stability of flood period and drought period, therefore in treatment of soft foundation process, need the intensity that effectively can improve soft basic body, reach the object of controlling distortion.
In prior art, there is following method: the construction method of 1) carrying out settlement Control on highway open to traffic roadbed, the method needs to excavate original embankment in implementation process, destroy the stability of existing embankment, need in work progress to insert Grouting Pipe bottom embankment, construction is complicated, fails effectively to solve the intensity of software itself; 2) by utilizing a kind of light soil to replace original embankment filled soil, reducing the annex stress to ground, reaching the target reducing Embankment Subsidence, fail to reach the object improving software foundation strength; 3) in river dike soft foundation, alternately arrange that electronic earthwork plastic drain board is as anodic-cathodic successively, be engaged in electrode perimeter and pour into silicate of soda sodium solution and calcium chloride solution respectively, carry out the construction method of ground stabilization, the method needs to arrange that special chemical solution tester difficulty of construction is larger in work progress, the cation passed through in chemical solution just single in work progress forms gum material, the gel polymer formed is less, and foundation capability improves not obvious; 4) in soft rock, arrange that irony electrode carries out the method for soft rock reinforcing, the method adopts single electrolysis Scheme of Strengthening, fails to repeat to consider electrolysis and the symphyogenetic consolidation effect of chemical solution, and the processing time is longer.
Summary of the invention
Goal of the invention: the construction method that the object of the present invention is to provide the soft based electrochemical process of a kind of existing dyke, the method is destroyed little to existing dyke, and exploitativeness is good, quality is easy to control and can construct within a short period of time.
Technical scheme: for achieving the above object, the present invention adopts following technical scheme:
A construction method for the soft based electrochemical process of existing dyke, comprises the steps:
1) carry out the geologic prospect of the Soft Soil Layer of existing dyke, determine the reinforcing scope of Soft Soil Layer;
2) according to prospecting results, according to designing requirement in existing dyke both sides respectively to inserting some row's electrodes bottom dyke in the Soft Soil Layer needed reinforcement; The main body of this electrode is cylindrical structure, and the top of electrode is conical; Electrode is axially arranged with two grooves along it, and a groove is embedded in liquid injection pipe wherein, installs chemical concentrations measuring instrument in another groove; After electrode has inserted, connect wire according to the requirement of often arranging positive and negative electrode interval, connect dc source, the voltage of power supply is 0 ~ 220 volt, and electric current is 0 ~ 300 ampere;
3) by the liquid injection pipe on electrode, inject sodium carbonate liquor to negative electrode, its concentration is 10 ~ 20%, and anode injects magnesium chloride solution, and its concentration is 10 ~ 20%; By the concentration of chemical concentrations measuring instrument measurement electrode peripheral carbon acid sodium solution and magnesium chloride solution, when its concentration lower than 4% time, inject sodium carbonate liquor and magnesium chloride solution respectively by liquid injection pipe, make its concentration reach 15%;
4) when the output current of electrode is less than 20 amperes, the concentration of chemical solution lower than 4% time, original positive and negative electrode is exchanged, and positive electrode N after conversion and negative electrode S injects corresponding chemical solution respectively, repeat step 3), make its concentration reach 15%;
5) 3 are repeated) ~ 4) until the intensity of Soft Soil Layer 2 reaches designing requirement, stop energising and inject chemical solution, extracting electrode.
Described electrode external diameter is 3 ~ 10cm, and length is 200 ~ 1000cm.
Distance between adjacent electrode is 300 ~ 500cm.
Described electrode is ferrous material, and the main body of electrode is cylindrical structure, and the top of electrode is conical.
Beneficial effect: compared with prior art, the construction method of the existing dyke of the present invention soft based electrochemical process possesses following advantage:
1) by injecting chemical solution in electrode perimeter, the gelling thing (Fe (OH) of electrochemical reaction is added
3) and sediment (Mg (OH)
2) content, improve the consolidation effect of the soil body and shorten consolidation time;
2) adopt the mode adding the reaction of chemical solution combined with electrochemical, the spacing between two row's electrodes can be increased, thus save test material;
3) by leaving groove in electrode perimeter, facilitating the injection carrying out chemical solution in the electrode perimeter soil body in work progress, facilitating the concentration of chemical solution in the measurement electrode periphery soil body;
4) by conversion electric power positive and negative electrode and the replacing carrying out chemical solution, make the electrochemical reaction of electrode in the soil body more abundant, reinforcing scope and effect are more even, adopt program construction technology simple, workable, economic benefit is obvious, obvious processing effect.
Accompanying drawing explanation
Structural representation when Fig. 1 is the soft based electrochemical process of existing dyke;
Fig. 2 is the schematic cross section of Fig. 1;
Fig. 3 is the schematic cross-sectional view of electrode;
Fig. 4 is the schematic longitudinal section of electrode.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in Fig. 1 ~ 4, in figure, N is the positive pole (negative pole) of dc source; S is the negative pole (positive pole) of dc source; Existing dyke 1 is arranged on Soft Soil Layer 2, inserts multi-electrode 3 in dyke 1 both sides respectively to bottom dyke 1, and ensure that electrode 3 is inserted in the Soft Soil Layer 2 needed reinforcement, the distance between adjacent electrode 3 is 300 ~ 500cm.
Embodiment 1
The construction method of the soft based electrochemical process of existing dyke, comprises the steps:
1) carry out the geologic prospect of the Soft Soil Layer 2 of existing dyke 1, determine the reinforcing scope of Soft Soil Layer 2;
2) according to prospecting results, according to designing requirement in existing dyke 1 both sides respectively to inserting some row's electrodes 3 bottom dyke, ensure electrode 3 be inserted in the Soft Soil Layer 2 needed reinforcement, two row electrodes 3 between distances be 400cm; Electrode 3 is ferrous material, and the main body of electrode 3 is cylindrical structure, and the top of electrode 3 is conical; Electrode 3 is axially arranged with two grooves along it, groove is embedded in the liquid injection pipe 5 for injecting chemical solution wherein, the chemical concentrations measuring instrument 6 of electrode 3 periphery chemical concentrations is installed and measured in another groove, electrode external diameter is 7cm, carries out determining that length is 600cm according to the thickness of Soft Soil Layer; After electrode 3 has inserted, connect wire 4 according to the requirement of often arranging positive and negative electrode interval, connect dc source, the voltage of power supply is 0 ~ 220 volt, and electric current is 0 ~ 300 ampere;
3) by the liquid injection pipe 5 on electrode 3, inject sodium carbonate liquor to negative electrode, its concentration is 15%, and anode injects magnesium chloride solution, and its concentration is 15%; By the chemical concentrations measuring instrument 6 on electrode 3, the concentration of measurement electrode 3 peripheral carbon acid sodium solution and magnesium chloride solution, when its concentration lower than 4% time, inject sodium carbonate liquor and magnesium chloride solution respectively by liquid injection pipe 5, make its concentration reach 15%;
4) when the output current of electrode 3 is less than 20 ampere-hours, the concentration of chemical solution lower than 4% time, original positive and negative electrode is exchanged, and positive electrode N after conversion and negative electrode S injects corresponding chemical solution respectively, makes its concentration reach 15%;
5) 3 are repeated) ~ 4) until the intensity of Soft Soil Layer 2 reaches designing requirement, stop energising and inject chemical solution, extracting electrode 3.
Embodiment 2
The construction method of the soft based electrochemical process of existing dyke, comprises the steps:
1) carry out the geologic prospect of the Soft Soil Layer 2 of existing dyke 1, determine the reinforcing scope of Soft Soil Layer 2;
2) according to prospecting results, according to designing requirement in existing dyke 1 both sides respectively to inserting some row's electrodes 3 bottom dyke, ensure electrode 3 be inserted in the Soft Soil Layer 2 needed reinforcement, two row electrodes 3 between distances be 300cm; Electrode 3 is ferrous material, and the main body of electrode 3 is cylindrical structure, and the top of electrode 3 is conical; Electrode 3 is axially arranged with two grooves along it, groove is embedded in the liquid injection pipe 5 for injecting chemical solution wherein, the chemical concentrations measuring instrument 6 of electrode 3 periphery chemical concentrations is installed and measured in another groove, electrode external diameter is 3cm, carries out determining that length is 200cm according to the thickness of Soft Soil Layer; After electrode 3 has inserted, connect wire 4 according to the requirement of often arranging positive and negative electrode interval, connect dc source, the voltage of power supply is 0 ~ 220 volt, and electric current is 0 ~ 300 ampere;
3) by the liquid injection pipe 5 on electrode 3, inject sodium carbonate liquor to negative electrode, its concentration is 10%, and anode injects magnesium chloride solution, and its concentration is 10%; By the chemical concentrations measuring instrument 6 on electrode 3, the concentration of measurement electrode 3 peripheral carbon acid sodium solution and magnesium chloride solution, when its concentration lower than 4% time, inject sodium carbonate liquor and magnesium chloride solution respectively by liquid injection pipe 5, make its concentration reach 15%;
4) when the output current of electrode 3 is less than 20 ampere-hours, the concentration of chemical solution lower than 4% time, original positive and negative electrode is exchanged, and positive electrode N after conversion and negative electrode S injects corresponding chemical solution respectively, makes its concentration reach 15%;
5) 3 are repeated) ~ 4) until the intensity of Soft Soil Layer 2 reaches designing requirement, stop energising and inject chemical solution, extracting electrode 3.
Embodiment 3
The construction method of the soft based electrochemical process of existing dyke, comprises the steps:
1) carry out the geologic prospect of the Soft Soil Layer 2 of existing dyke 1, determine the reinforcing scope of Soft Soil Layer 2;
2) according to prospecting results, according to designing requirement in existing dyke 1 both sides respectively to inserting some row's electrodes 3 bottom dyke, ensure electrode 3 be inserted in the Soft Soil Layer 2 needed reinforcement, two row electrodes 3 between distances be 500cm; Electrode 3 is ferrous material, and the main body of electrode 3 is cylindrical structure, and the top of electrode 3 is conical; Electrode 3 is axially arranged with two grooves along it, groove is embedded in the liquid injection pipe 5 for injecting chemical solution wherein, the chemical concentrations measuring instrument 6 of electrode 3 periphery chemical concentrations is installed and measured in another groove, electrode external diameter is 10cm, carries out determining that length is 1000cm according to the thickness of Soft Soil Layer; After electrode 3 has inserted, connect wire 4 according to the requirement of often arranging positive and negative electrode interval, connect dc source, the voltage of power supply is 0 ~ 220 volt, and electric current is 0 ~ 300 ampere;
3) by the liquid injection pipe 5 on electrode 3, inject sodium carbonate liquor to negative electrode, its concentration is 20%, and anode injects magnesium chloride solution, and its concentration is 20%; By the chemical concentrations measuring instrument 6 on electrode 3, the concentration of measurement electrode 3 peripheral carbon acid sodium solution and magnesium chloride solution, when its concentration lower than 4% time, inject sodium carbonate liquor and magnesium chloride solution respectively by liquid injection pipe 5, make its concentration reach 15%;
4) when the output current of electrode 3 is less than 20 ampere-hours, the concentration of chemical solution lower than 4% time, original positive and negative electrode is exchanged, and positive electrode N after conversion and negative electrode S injects corresponding chemical solution respectively, makes its concentration reach 15%;
5) 3 are repeated) ~ 4) until the intensity of Soft Soil Layer 2 reaches designing requirement, stop energising and inject chemical solution, extracting electrode 3.
Claims (4)
1. a construction method for the soft based electrochemical process of existing dyke, is characterized in that, comprise the steps:
1) carry out the geologic prospect of the Soft Soil Layer (2) of existing dyke (1), determine the reinforcing scope of Soft Soil Layer (2);
2) according to prospecting results, according to designing requirement in existing dyke (1) both sides respectively to inserting some row's electrodes (3) bottom dyke in the Soft Soil Layer needed reinforcement (2); The main body of this electrode (3) is cylindrical structure, and the top of electrode (3) is conical; Electrode (3) is axially arranged with two grooves along it, and a groove is embedded in liquid injection pipe (5) wherein, installs chemical concentrations measuring instrument (6) in another groove; After electrode (3) has inserted, connect wire (4) according to the requirement of often arranging positive and negative electrode interval, connect dc source, the voltage of power supply is 0 ~ 220 volt, and electric current is 0 ~ 300 ampere;
3) by the liquid injection pipe (5) on electrode (3), inject sodium carbonate liquor to negative electrode, its concentration is 10 ~ 20%, and anode injects magnesium chloride solution, and its concentration is 10 ~ 20%; By the concentration of chemical concentrations measuring instrument (6) measurement electrode (3) peripheral carbon acid sodium solution and magnesium chloride solution, when its concentration lower than 4% time, inject sodium carbonate liquor and magnesium chloride solution respectively by liquid injection pipe (5), make its concentration reach 15%;
4) when the output current of electrode (3) is less than 20 amperes, the concentration of chemical solution lower than 4% time, original positive and negative electrode is exchanged, and positive electrode N after conversion and negative electrode S injects corresponding chemical solution respectively, repeat step 3), make its concentration reach 15%;
5) 3 are repeated) ~ 4) until the intensity of Soft Soil Layer 2 reaches designing requirement, stop energising and inject chemical solution, extracting electrode (3).
2. the construction method of the soft based electrochemical process of existing dyke according to claim 1, is characterized in that: described electrode (3) external diameter is 3 ~ 10cm, and length is 200 ~ 1000cm.
3. the construction method of the soft based electrochemical process of existing dyke according to claim 1, is characterized in that: the distance between adjacent electrode (3) is 300 ~ 500cm.
4. the construction method of the soft based electrochemical process of existing dyke according to claim 1, is characterized in that: described electrode (3) is ferrous material, and the main body of electrode (3) is cylindrical structure, and the top of electrode (3) is conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689765.0A CN104452738B (en) | 2014-11-26 | 2014-11-26 | The construction method that a kind of soft based electrochemical of existing dyke processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689765.0A CN104452738B (en) | 2014-11-26 | 2014-11-26 | The construction method that a kind of soft based electrochemical of existing dyke processes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104452738A true CN104452738A (en) | 2015-03-25 |
| CN104452738B CN104452738B (en) | 2016-12-07 |
Family
ID=52899438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410689765.0A Active CN104452738B (en) | 2014-11-26 | 2014-11-26 | The construction method that a kind of soft based electrochemical of existing dyke processes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104452738B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2168585C2 (en) * | 1999-03-05 | 2001-06-10 | Шаймуратов Валерий Халитович | Electrochemical method for producing earth piles |
| CN102094414A (en) * | 2011-04-02 | 2011-06-15 | 河海大学 | Method for treating deep soft soil foundation by combining chemical electro-osmosis method and vacuum preloading method |
| CN102162239A (en) * | 2011-04-02 | 2011-08-24 | 河海大学 | Soft soil foundation treated by chemical-solution-combined injection electroosmosis method and construction method of soft soil foundation |
| CN103255761A (en) * | 2012-02-16 | 2013-08-21 | 同济大学 | Method for reinforcing soft soil foundation by using calescence type vacuum preloading way |
| CN103321208A (en) * | 2013-06-26 | 2013-09-25 | 上海大学 | Vacuum-electroosmosis combined soft foundation reinforcing treatment system utilizing alternative arrangement of long and short cathodes |
-
2014
- 2014-11-26 CN CN201410689765.0A patent/CN104452738B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2168585C2 (en) * | 1999-03-05 | 2001-06-10 | Шаймуратов Валерий Халитович | Electrochemical method for producing earth piles |
| CN102094414A (en) * | 2011-04-02 | 2011-06-15 | 河海大学 | Method for treating deep soft soil foundation by combining chemical electro-osmosis method and vacuum preloading method |
| CN102162239A (en) * | 2011-04-02 | 2011-08-24 | 河海大学 | Soft soil foundation treated by chemical-solution-combined injection electroosmosis method and construction method of soft soil foundation |
| CN103255761A (en) * | 2012-02-16 | 2013-08-21 | 同济大学 | Method for reinforcing soft soil foundation by using calescence type vacuum preloading way |
| CN103321208A (en) * | 2013-06-26 | 2013-09-25 | 上海大学 | Vacuum-electroosmosis combined soft foundation reinforcing treatment system utilizing alternative arrangement of long and short cathodes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104452738B (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162239B (en) | Soft soil foundation treated by chemical-solution-combined injection electroosmosis method and construction method of soft soil foundation | |
| CN105507232B (en) | A kind of microorganism flat board grouting device and method for reinforcing Liquefaction Foundation | |
| CN102322067B (en) | Method for treating landslide projects through combining chemical electroosmosis method with micro anti-slide piles | |
| CN102409663A (en) | Method for processing soft foundation by combining electrochemical grouting with slurry-cemented discrete material pile | |
| CN105714762B (en) | Change and fill out compacting improvement soft clay electric osmose reinforcement means | |
| CN112921193B (en) | Method for controlling seepage direction of rare earth leaching solution by electrifying | |
| CN102094414A (en) | Method for treating deep soft soil foundation by combining chemical electro-osmosis method and vacuum preloading method | |
| CN101838740A (en) | Method for removing soluble heavy metal ions in situ | |
| CN102562090B (en) | Electrode optimization placement method for improving stability of surrounding rocks in roadway | |
| CN105649005A (en) | Geogrid combined grouting electro-osmosis construction method for ultra-soft soil | |
| CN107630450A (en) | A kind of carbon-fiber cement mixing pile combines electro-osmosis method reinforcing flexible foundation construction method | |
| Liu et al. | Electroosmotic stabilization on soft soil: Experimental studies and analytical models (A historical review) | |
| CN112359811B (en) | Silt rapid treatment method of electric geotextile electroosmosis combined dynamic compaction gravel pile | |
| CN103726486A (en) | Processing method for strengthening vacuum preloading soft foundation by direct-current electric field | |
| CN205224011U (en) | A dull and stereotyped slip casting device of microorganism for reinforcing ground that can liquefy | |
| CN101701458B (en) | Triangularly arranged compound electrode of soft soil electrochemistry solidification | |
| CN103388321A (en) | Construction method for river dike foundation anti-seepage wall | |
| CN104452738B (en) | The construction method that a kind of soft based electrochemical of existing dyke processes | |
| CN202577276U (en) | Electric plastic drain board | |
| CN101644637B (en) | Test method of changing performances of rock | |
| Hu et al. | The optimal combination form of vacuum pre-loading combined with electro-osmosis and with dynamic compaction method on the improvement of dredged slurry | |
| CN201406681Y (en) | Pre-reinforcement processing device of mixed hydraulic reclamation soft soil foundation | |
| Shen et al. | The performance of super soft foundations under a modified vacuum preloading method | |
| CN206941562U (en) | A kind of geotechnical grid for strengthening being fixedly connected | |
| CN203411990U (en) | Glass fiber reinforced plastic screw anchor foundation for electric transmission line tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 315099, Zhejiang Province, Haishu District, Zhongshan Ningbo West Road, No. 2 hang Long Center (15-9) (Yu Shun Ecological Construction Co., Ltd.) Co-patentee after: Hehai Science & Technology Co., Ltd. Patentee after: YUSHUN ECOLOGICAL CONSTRUCTION CO., LTD. Address before: 7, building 487, building 17, Ning Xing Fortune Plaza, No. 315000, Cheng Cheng North Road, Zhejiang, Ningbo Co-patentee before: Hehai Science & Technology Co., Ltd. Patentee before: YUSHUN ECOLOGICAL CONSTRUCTION CO., LTD. |
|
| CP02 | Change in the address of a patent holder |