CN206721822U - A kind of Novel geogrid and the old and new's dyke joint portion ruggedized construction - Google Patents
A kind of Novel geogrid and the old and new's dyke joint portion ruggedized construction Download PDFInfo
- Publication number
- CN206721822U CN206721822U CN201720399709.2U CN201720399709U CN206721822U CN 206721822 U CN206721822 U CN 206721822U CN 201720399709 U CN201720399709 U CN 201720399709U CN 206721822 U CN206721822 U CN 206721822U
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- dyke
- gsz
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- new
- joint portion
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Abstract
The utility model provides a kind of Novel geogrid for the old and new's dyke joint portion, including surface is provided with the GSZ of some liquid overflow holes, and the microorganism glued layer formed by liquid injection pipe to GSZ inside perfusion microorganism mixed solution.The utility model also provides a kind of ruggedized construction of the old and new's dyke joint portion, it is included in the domatic upper step excavation of old dyke backwater, the new dyke earth material structure filled consistent with every one-level step level height and lay GSZ on every one-level step horizontal plane, wherein, one end of the GSZ is stretched into old dyke levee body.With reference to GSZ and microbial mineralization principle, punish because the old and new's dyke combine it is improper caused by differential settlement, sliding, seepage flow, piping the problems such as.It is more closely knit that microorganism mixed bacteria liquid can be such that the Novel geogrid is combined with the old and new's dyke, effectively fill the gap caused by injection GSZ is to old dyke, strengthen the effect of the resistance differential settlement of GSZ, while the glued layer of microbial mineralization generation can also play a part of antiseepage；The use of the binder materials such as cement is that replaced, reduces CO2Discharge capacity, avoid the aggravation of greenhouse effects.
Description
Technical field
The utility model belongs to dyke enlarging reinforcing engineering field, specifically, is related to a kind of the old and new's dyke that is used for and combines
The Novel geogrid and the old and new's dyke joint portion ruggedized construction in portion.
Background technology
The continuous improvement required with flood control is, it is necessary to carry out heightening and thickening to dyke building, and heightening of embankment protection trains thick engineering
The punishment that middle the old and new's dyke combines is improper, tends to that the diseases such as differential settlement, sliding, seepage flow, piping occur, directly results in
The flood control capacity of dyke declines, and therefore, the combination punishment of the old and new's dyke is particularly important.
The experience that the old and new's dyke joint portion refers to roadbed extension project mostly, such as domatic progress in old dyke are administered at present
Step excavation, adds GSZ in the old and new's dyke junction while having, this method can effectively prevent the old and new's dyke
Relative settlement, but the extension project of roadbed is mostly below the level of ground water, and dyke is a kind of special dash building
Thing is, it is necessary to which flood is limited in flood passage road, it is necessary to prevents the disasters such as seepage flow, the requirement to dyke expansion engineering is stricter, newly
The compaction rate that old dyke combines is very crucial, is particularly due to GSZ pouring into caused gap in old dyke and fills up not
When being easy to cause the disasters such as seepage flow, therefore there is the defects of certain and deficiency in the simple experience for applying mechanically roadbed extension project.
Utility model content
The purpose of this utility model is to provide a kind of Novel geogrid for the old and new's dyke joint portion.
Another object of the present utility model is to provide a kind of the old and new's dyke constructed using the Novel geogrid and combined
Portion's ruggedized construction.
In order to realize the utility model purpose, a kind of new geotechnological lattice for the old and new's dyke joint portion of the present utility model
Grid, including surface are provided with the GSZ of some liquid overflow holes, and irrigate microorganism to GSZ inside by liquid injection pipe and mix
Close the microorganism glued layer that solution is formed.
A diameter of 2-3cm of the GSZ, wall thickness 5-10mm, the aperture of the liquid overflow hole are 1-2cm, pitch of holes
For 7-10cm.
GSZ of the present utility model be by polypropylene or high density polyethylene (HDPE) or high-strength polyester fibers through thermoplastic and into
A kind of two-way grille for 3 D stereo that hole machined forms.The grid tensile strength is high, and stretching force is small, and anti-tear force intensity is big, indulges
Transverse strength difference is small, ultraviolet-resistant aging, wear-resistant, corrosion-resistant, light, strong with soil or rubble interlocking power.
The microorganism glued layer includes soil particle and microorganism mixed solution, and the microorganism mixed solution includes bacterium solution
And nutrient solution.Wherein, the bacterium solution is Pasteur's gemma sarcine bacterium solution.The nutrient solution is by urea and solubility calcium salting liquid
Composition.
Preferably, bacterial concentration 108-109cells/L.Nutrient solution is by volume ratio 1:1 urea and CaCl2Solution group
Into mixed solution, the two concentration is identical, is 1-1.5mol/L.
The utility model also provides a kind of the old and new's dyke joint portion ruggedized construction, be included in old dyke backwater it is domatic on open
Dig step, the new dyke earth material structure filled consistent with every one-level step level height and on every one-level step horizontal plane upper berth
If the Novel geogrid, wherein, one end of the GSZ is stretched into old dyke levee body.
When constructing at the scene, specific work process is as follows：
1st, smooth location, and reconnoitre scene, according to in-situ data and heightening and thickening size determine GSZ usage amount and
The depth of the old dyke of injection.
2nd, step excavation, and construction working well is set, arrangement rig machinery, the machinery can be by the old dike of GSZ injection
It is anti-, and the soil drilled out is transported out.
3rd, GSZ is laid by design, fills new dyke earth material, layered rolling is to designing compactness.
4th, prepare and inject bacterium solution and nutrient solution into GSZ respectively, every time every square metre of grid injection bacterium solution and battalion
Nutrient solution is 20L, is injected several times, every time injection interval 30min or so.
5th, after fluid injection, site clearing, backfilling working well.
The utility model uses a kind of new GSZ, and the grid is a kind of high intensity, corrosion-resistant, mantle friction system
The larger direction earthwork grilles of number, it can irrigate liquid by least one liquid injection pipe to its inside, and there is liquid overflow hole on surface, can be with
Equably liquid is overflowed to soil body surface.This new GSZ is laid in the old and new's dyke faying face, and injection is old
Dyke certain depth, by this new GSZ, microbial inoculum and nutrient solution are injected separately into, liquid is uniformly divided
Cloth is in the soil body surface contacted with GSZ.
Microorganism is that Pasteur's gemma sarcine (is purchased from China General Microbiological culture presevation used by the utility model
Administrative center, numbering 1.3687), culture medium is Yeast extract 20g/L, NH4Cl 10g/L, MnSO410mg/L,
NiCl624mg/L, pH to 7.5-8.5 is adjusted with NaOH.Nutrient solution is CaCl2Solution and urea liquid, thalline is in metabolic mistake
A large amount of urases are produced in journey, the urase can hydrolyze urea and produce CO3 2-Ion；Due to the special construction of the bacteria cell wall, carefully
Bacterium surface is negatively charged, and bacterial cell is adsorbed onto soil body particle surface, when containing finite concentration calcium ion in hole environment, calcium
Ion can be adsorbed by cell, and so as to using cell as nucleus, generate the nuclei of crystallization of calcium carbonate crystal around bacterium, calcium carbonate is brilliant
The body nuclei of crystallization form one layer of closely knit glued layer with bacterium and its caused colloidality secretion, and intensity is up to 20MPa or so, together
When this glued layer osmotic coefficient ratio it is relatively low, 3~4 times lower than the infiltration coefficient of the conventional soil body, good antiseepage can be played
Effect.Reaction equation is as follows：
Cell+ soil particles → Cell- soil particles
Cell- soil particles+Ca2+→ Cell- soil particles-Ca2+
Cell- soil particles-Ca2++CO3 2-→ Cell- soil particles-CaCO3
The utility model provides a kind of Novel geogrid of internal energy fluid injection, with reference to GSZ and microbial mineralization
Principle, punish because the old and new's dyke combine it is improper caused by uniform settlement, sliding, seepage flow, piping the problems such as.Microorganism mixed bacteria liquid
GSZ can be combined with the old dike of new dike closely knit, effectively fill the gap caused by injection GSZ is to old dyke, increase
The effect of the resistance differential settlement of strong GSZ, while the glued layer of microbial mineralization generation can also play the work of antiseepage
With；The use of the binder materials such as cement is that replaced, reduces CO2Discharge capacity, avoid the aggravation of greenhouse effects.
Microbial mineralization is a kind of phenomenon of generally existing in nature, the certain micro-organisms in the soil body can also utilize from
The metabolic activity generation multi mineral crystallization of body.Because calcium carbonate is that a kind of most wide carbonate is distributed in nature, and
Property is relatively stable, has stronger intensity and durability.Meanwhile the microorganism fungus kind selected by the utility model is from soil
Harmless, the non-pathogenic bacteria of middle extraction, it is relatively safer；In addition, using intrinsic bacterium in situ, added by the method for Culture in situ
With propagation, the speed of microbial reaction is set to reach the needs of engineering.
For the old and new's dyke faying face under the collective effect of GSZ and microbial inoculum, GSZ mainly undertakes decrease
The generation of the old and new's dyke relative settlement, glued layer caused by microorganism mixed bacteria liquid can prevent faying face from Seepage problems occur,
It can also fill because of gap caused by the old dyke of GSZ injection simultaneously, GSZ can be made to be combined with the soil body closer.
The utility model has advantages below：
(1) the utility model provides a kind of GSZ for being capable of slip casting, is not required on GSZ in colligation slip casting
Pipe, constructing operation are easy.
(2) by injecting mixed bacteria liquid, react and produce closely knit glued layer, can fill because extending through old dyke
Internal and caused gap, and GSZ can be made to be engaged closely with the old dike of new dike.
(3) contrast the injection binder materials or chemical high polymer etc. such as concrete, it is avoided to surrounding soil and vegetation
Corrode, while CO can also be reduced2Discharge capacity, reduce the aggravation of greenhouse effects, ecological, environmental protective.
(4) glued layer caused by mixed bacteria liquid, the effect of the resistance differential settlement of GSZ can be strengthened, moreover it is possible to
Enough play a part of antiseepage.
(5) after carrying out reinforcement to the old and new's dyke using the Novel geogrid, the safety coefficient of dyke can be increased, entered
And dyke section can be reduced, Economization on land.
Brief description of the drawings
Fig. 1 is the top view of GSZ in the utility model embodiment 1.
Fig. 2 is the cross-sectional view of the old and new's dyke joint portion ruggedized construction in the utility model embodiment 2.
In figure, 1- GSZs, 2- liquid overflow holes, 3- liquid injection pipes, the old dykes of 4-, 5- Novel geogrids and microorganism are cementing
Layer, the new dyke earth material structures of 6- (heightening and thickening part), 7- grounds (levee body), 8- water levels.
Embodiment
Following examples are used to illustrate the utility model, but are not limited to the scope of the utility model.If do not refer in particular to
Conventional meanses bright, that technological means used is well known to those skilled in the art in embodiment, raw materials used is commercially available business
Product.
In description of the present utility model, unless otherwise indicated, the orientation or state relation of the instruction such as term " on ", " under "
It is for only for ease of description the utility model and simplifies and describe, rather than indicates or imply that signified device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
A kind of Novel geogrid for the old and new's dyke joint portion of embodiment 1
As depicted in figs. 1 and 2, a kind of Novel geogrid for the old and new's dyke joint portion that the present embodiment provides, bag
The GSZ 1 that surface is provided with some liquid overflow holes 3 is included, and microorganism is irrigated to GSZ inside by liquid injection pipe 3 and mixed
The microorganism glued layer that solution is formed.
The GSZ be by polypropylene or high density polyethylene (HDPE) or high-strength polyester fibers through thermoplastic and into hole machined and
Into a kind of 3 D stereo two-way grille.The grid tensile strength is high, and stretching force is small, and anti-tear force intensity is big, in length and breadth intensity difference
It is different small, it is ultraviolet-resistant aging, wear-resistant, corrosion-resistant, light, it is strong with soil or rubble interlocking power.It can by a liquid injection pipe to
Its internal perfusion liquid, there is liquid overflow hole on surface, equably liquid can overflow to soil body surface.The diameter of the GSZ
For 3cm, wall thickness 10mm, the aperture of the liquid overflow hole is 2cm, pitch of holes 10cm.
The microorganism glued layer includes soil particle and microorganism mixed solution, and the microorganism mixed solution includes bacterium solution
And nutrient solution.Wherein, the bacterium solution is Pasteur's gemma sarcine bacterium solution, and bacterial concentration is 5 × 108cells/L.The nutrition
Liquid is by volume ratio 1:1 urea and CaCl2The mixed solution of solution composition, the two concentration are 1mol/L.
A kind of the old and new's dyke joint portion ruggedized construction of embodiment 2
The present embodiment provide the old and new's dyke joint portion ruggedized construction (Fig. 2), be included in the old backwater of dyke 4 it is domatic on open
Dig step, the new dyke earth material structure 6 filled consistent with every one-level step level height and on every one-level step horizontal plane
The GSZ of the embodiment 1 of laying, wherein, one end of the GSZ is stretched into old dyke levee body.
When constructing at the scene, specific work process is as follows：
1st, smooth location, and reconnoitre scene, according to in-situ data and heightening and thickening size determine GSZ usage amount and
The depth of the old dyke of injection.
2nd, step excavation, and construction working well is set, arrangement rig machinery, the machinery can be by the old dike of GSZ injection
It is anti-, and the soil drilled out is transported out.
3rd, GSZ is laid by design, fills new dyke earth material, layered rolling is to designing compactness.
4th, prepare and inject bacterium solution and nutrient solution into GSZ respectively, every time every square metre of grid injection bacterium solution and battalion
Nutrient solution is 20L, point 5 injections, every time injection interval 30min or so.
5th, after fluid injection, site clearing, backfilling working well.
The utility model provides a kind of GSZ for being capable of fluid injection, is routed to the old and new's dyke junction, and stretches into old
Dyke；By injecting mixed bacteria liquid to GSZ, react and produce closely knit glued layer, can fill because extending through old dike
Anti- inside and caused gap, and GSZ can be made to be engaged with the old dike of new dike closely, enhancing GSZ resistance is uneven
The effect of even sedimentation, additionally it is possible to play a part of antiseepage.The utility model on GSZ without, in colligation Grouting Pipe, constructing
It is easy to operate, the binder materials or chemical high polymer etc. such as contrast injection cement, ecological, environmental protective, energy-saving and emission-reduction.
Although above having made detailed description to the utility model with a general description of the specific embodiments,
But on the basis of the utility model, it can be modified or improved, this is aobvious and easy to those skilled in the art
See.Therefore, the these modifications or improvements on the basis of without departing from the utility model spirit, belong to the utility model
Claimed scope.
Claims (4)
1. a kind of Novel geogrid for the old and new's dyke joint portion, it is characterised in that be provided with some liquid overflow holes including surface
GSZ, and by liquid injection pipe to GSZ inside to irrigate the microorganism that is formed of microorganism mixed solution cementing
Layer.
2. GSZ according to claim 1, it is characterised in that a diameter of 2-3cm of the GSZ, wall thickness are
5-10mm, the aperture of the liquid overflow hole is 1-2cm, pitch of holes 7-10cm.
3. GSZ according to claim 1, it is characterised in that the GSZ is gathered by polypropylene or high density
A kind of two-way grille for 3 D stereo that ethene or high-strength polyester fibers are process through thermoplastic and pore-forming.
A kind of 4. the old and new's dyke joint portion ruggedized construction, it is characterised in that it is included in the domatic upper step excavation of old dyke backwater, with
Per the one-level step level height new dyke earth material structure unanimously filled and the right laid on every one-level step horizontal plane
It is required that the Novel geogrid described in any one of 1-3, wherein, one end of the GSZ is stretched into old dyke levee body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720399709.2U CN206721822U (en) | 2017-04-17 | 2017-04-17 | A kind of Novel geogrid and the old and new's dyke joint portion ruggedized construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720399709.2U CN206721822U (en) | 2017-04-17 | 2017-04-17 | A kind of Novel geogrid and the old and new's dyke joint portion ruggedized construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206721822U true CN206721822U (en) | 2017-12-08 |
Family
ID=60505427
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720399709.2U Expired - Fee Related CN206721822U (en) | 2017-04-17 | 2017-04-17 | A kind of Novel geogrid and the old and new's dyke joint portion ruggedized construction |
Country Status (1)
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| CN (1) | CN206721822U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2018236858A1 (en) * | 2018-05-04 | 2019-11-21 | Korea Advanced Institute Of Science And Technology | Reinforcement method for water leaking of water facilities using soil microbes biostimulation and microparticles injection |
| CN111074708A (en) * | 2019-12-02 | 2020-04-28 | 上海市水利工程设计研究院有限公司 | Roadbed structure for widening and heightening waterfront embankment along water side and construction method thereof |
| CN112176948A (en) * | 2020-10-09 | 2021-01-05 | 湖北省水利水电规划勘测设计院 | Construction method for preventing settlement and cracks of widened and heightened integral structure of dike project |
| CN112431170A (en) * | 2020-11-12 | 2021-03-02 | 中交天津港湾工程研究院有限公司 | Construction method of river channel balance environment-friendly river bank structure and river bank structure |
| CN112726310A (en) * | 2021-01-29 | 2021-04-30 | 温州大学 | Reinforced roadbed with concrete building rubbish mixed soil as roadbed filler and construction method thereof |
| CN116752393A (en) * | 2023-08-17 | 2023-09-15 | 中南大学 | Novel structure for roadbed widening and construction process |
-
2017
- 2017-04-17 CN CN201720399709.2U patent/CN206721822U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2018236858A1 (en) * | 2018-05-04 | 2019-11-21 | Korea Advanced Institute Of Science And Technology | Reinforcement method for water leaking of water facilities using soil microbes biostimulation and microparticles injection |
| CN111074708A (en) * | 2019-12-02 | 2020-04-28 | 上海市水利工程设计研究院有限公司 | Roadbed structure for widening and heightening waterfront embankment along water side and construction method thereof |
| CN111074708B (en) * | 2019-12-02 | 2023-11-14 | 上海市水利工程设计研究院有限公司 | Roadbed structure for widening and heightening along water side of water embankment and construction method thereof |
| CN112176948A (en) * | 2020-10-09 | 2021-01-05 | 湖北省水利水电规划勘测设计院 | Construction method for preventing settlement and cracks of widened and heightened integral structure of dike project |
| CN112431170A (en) * | 2020-11-12 | 2021-03-02 | 中交天津港湾工程研究院有限公司 | Construction method of river channel balance environment-friendly river bank structure and river bank structure |
| CN112726310A (en) * | 2021-01-29 | 2021-04-30 | 温州大学 | Reinforced roadbed with concrete building rubbish mixed soil as roadbed filler and construction method thereof |
| CN116752393A (en) * | 2023-08-17 | 2023-09-15 | 中南大学 | Novel structure for roadbed widening and construction process |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20180417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |