CN104234026B - A kind of stalk fibre silk reinforced cement improvement loose-filled ground and construction method thereof - Google Patents
A kind of stalk fibre silk reinforced cement improvement loose-filled ground and construction method thereof Download PDFInfo
- Publication number
- CN104234026B CN104234026B CN201410407276.1A CN201410407276A CN104234026B CN 104234026 B CN104234026 B CN 104234026B CN 201410407276 A CN201410407276 A CN 201410407276A CN 104234026 B CN104234026 B CN 104234026B
- Authority
- CN
- China
- Prior art keywords
- stalk fibre
- ground
- cement
- fibre silk
- loose
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The present invention relates to a kind of stalk fibre silk reinforced cement improvement loose-filled ground and construction method thereof, the component proportion of its ground, in dry ground % by weight, specifically comprises: stalk fibre silk incorporation is 0.5～1.5%, cement mixed weight 5～8%, loose earth filling incorporation are 90.5～94%; Wherein said stalk fibre filament length degree is 10～15mm; Its foundation construction method, according to the size of construction work scale, is divided into mixer mix and job mix two class techniques, through mix, landfill, roll formation ground. The advantages such as ground of the present invention has that resistance to compression, shearing resistance, resistance are split, high tenacity, high water stability and low swell-shrink characteristic, and cost low, construct simple and reliablely, can be widely used in the engineering fields such as side slope, roadbed, ground, embankment.
Description
Technical field
The invention belongs to ground and construction work technical field thereof, particularly relate to a kind of stalk fibre silk reinforcement waterMud improvement loose-filled ground and construction method thereof.
Background technology
Foundation construction method can be divided into antihunt means and the large class of reinforcement method two substantially at present. Antihunt means mainly containCement improvement, lime improvement, two ash improvement or polymer reactant modification method etc.; Reinforcement method mainly comprises soilWork cloth, geomembrane, GSZ, continuous fiber reinforced earth method etc.
Cement, as a kind of cheap and efficient stabilizing agent, has been brought into play very large effect on improvement of soil nature. CementMix crushing resistance, shear resistance and the frost resistance that can improve significantly engineering soil, reduce its swell-shrink characteristic, mouldSex index. Although cement has been improved a lot of engineering properties of soil effectively, it has also brought some negative simultaneouslyImpact: the one, a large amount of cement improvement effects has reduced native plasticity and has increased native pH value, and this can cause soilEarth sand and environmental pollution; The 2nd, banketing after cement improvement can show very strong fragility, and this can cause the soil bodyUnexpected unstability, seriously affected the safety and stability of engineering.
In recent years, along with the fast development of chemical synthesis industry, artificial synthetic fiber has become a kind of novel reinforcementMaterial, is applied to concrete works and Geotechnical Engineering field widely. Fiber and steel bar reinforced soil (referred to as fiber soil)Be by a certain proportion of filament is incorporated into bankets, native engineering properties is improved. Although fiberThe advantage of soil is a lot, but it still exists some shortcomings: the one, and the strengthening action of fiber is not very outstanding, reinforcementThe intensity increase rate of rear soil is little, far away from the intensity of cement or cement stabilized soil; The 2nd, the water temperature of fiber soilProperty poor, a period of time can there is disintegration in immersion, smooth being difficult to of most of fiber surface cohered with engineering soil coupling;The 3rd, once being abandoned polyester fiber, engineering soil is difficult to separate from soil, abandon soil and can cause secondary dirt to environmentDye. Very obvious for stalk fibre its effect history, for example, in China or Egyptian major partArea, since ancient times, people just start to have learned to add in cohesive soil stalk fibre (the so-called soil that puts up a houseRoom), also have the railing of family etc., some houses even still stand erect so far over half a century, wherein stalk fibreDimension has been brought into play great function. Its construction method is comparatively simple, when first cohesive soil reaches soft-plastic state stalkThe surface that fiber is sprinkled upon cohesive soil then digs that covering, pin are stepped on until fiber and soil stir fully reachesCoupling, is then to wake up native partly 2～3 hours, and now cohesive soil and stalk fibre fully cohere, lastIndividual link is that " choosing wall " constructs, and now engineering earth is contiguous hard plastic state, can construct continuously 1.5 meters highLeft and right, and wall is not askew. This method is the tensile property/shear behavior/crack resistance that takes full advantage of fiberCan, stop the lateral deformation of engineering soil, also can control vertical deformation simultaneously, this is conducive to the safety of engineeringProperty and stability. The method of this stalk fibre reinforcing cohesive soil is adopting always from ancient times to the present, but fixedComponent analysis, does not know stalk fibre and native proportioning are how many, so the technological innovation gesture of Traditional Folk legacy existsMust go.
Summary of the invention
The object of the invention is provides a kind of stalk fibre silk reinforced cement to change for overcoming the deficiencies in the prior artGood loose-filled ground and construction method thereof, the present invention can be by organic to cement stabilizing method and filament reinforcement methodCombine, not only can bring into play both advantages, can also make up separately the deficiency existing, make native intensity,The engineering properties such as toughness, swell-shrink characteristic and water temperature all obtain the improvement showing.
A kind of stalk fibre silk reinforced cement improvement loose-filled ground proposing according to the present invention, is characterized in that instituteState the component proportion of ground in dry ground % by weight, specifically comprise: stalk fibre silk incorporation is 0.5～1.5%,Cement mixed weight 5～8%, loose earth filling are 90.5～94%, and wherein said stalk fibre filament length degree is 10～15mm.
The construction party of a kind of stalk fibre silk reinforced cement improvement loose-filled ground proposing based on the invention described aboveMethod, is characterized in that, for small-scale engineering construction, comprising following concrete steps:
Step 1, raw material is weighed: the component proportion of described ground is in dry ground % by weight, and stalk fibre silk mixesAmount is 0.5～1.5%, cement mixed weight 5～8%, loose earth filling are 90.5～94%, wherein said stalk fibreFilament length degree is 10～15mm;
Step 2, raw material mix: stalk fibre silk, cement and loose earth filling by step 1 after weighing are sent into and stirredMix machine, make its mix evenly form mixture;
Step 3, mixture landfill: by the mix of stalk fibre silk, cement and loose earth filling after step 2 mixThing carries out landfill, becomes the landfill thing of ground shape;
Step 4, landfill thing rolls or tamps: by stalk fibre silk, cement and pine after step 3 landfill groundThe landfill of banketing thing rolls or tamps, and becomes ground.
The construction party of a kind of stalk fibre silk reinforced cement improvement loose-filled ground proposing based on the invention described aboveMethod, is characterized in that, for large-scale engineering construction, comprising following concrete steps:
Step 1, raw material is weighed: the component proportion of described ground, in dry ground % by weight, is mixed stalk fibre silkEnter amount and be 0.5～1.5%, cement mixed weight 5～8%, loose earth filling be 90.5～94%, wherein said stalk fibreDimension filament length degree is 10～15mm;
Step 2, site operation: be followed successively by base frame upper berth, ground loose earth filling, the cement that paves, cement and turn, sprayPenetrate stalk fibre silk, stalk fibre silk mix, surface evening and cal rolling, become ground.
General principle of the present invention is: stalk fibre silk, cement and loose earth filling three mix the two kinds of effects that haveMechanism: the first is the chemical action that cement and loose earth filling mix, when the calcium oxide in cement, aluminideDuring with silicide generation chemical action in loose earth filling, make the mixture of cement and loose earth filling that flocculation occur and doWith, thereby improve the density of this mixture, make moisture be difficult to enter this mixture, in engineering, showFor high water stability and low swell-shrink characteristic, meanwhile, the chemical reaction between cement and loose earth filling has generated siliceous, calcareousCement, has increased connection power and the snap-in force of this mixture, and its intensity increases substantially; The second is stalkMix effect between filament and cement and loose earth filling three, draws when ground bears, when pressure and shearing, stalkFilament in cement and loose earth filling by bearing tension effect, thereby improved the toughness of cement and loose earth filling, haveEffect ground has stoped ground to form crack, and has changed the brittle break feature of cement and loose earth filling.
The present invention compared with prior art its remarkable advantage is: the first, and the cement after stalk fibre silk reinforcementSoil has higher intensity, toughness and cracking resistance, and its destructive characteristics changes strain into from brittle break completelySoftening plastic failure and residual strength are higher; The second, the soil cement after reinforcement still has high water stability and low swollenContracting, has stoped the lateral deformation of foundation soil; The 3rd, the in the situation that of proof strength, mixing of fiber can subtractFew cement consumption more than 35%, has reduced the degree of soil sand and environmental pollution simultaneously; The 4th, of the present inventionThe implementation cost of construction method is low, and construction technology is simple and reliable, be widely used in side slope, retaining wall, roadbed,The ground such as ground and embankment and hydraulic engineering application.
Brief description of the drawings
Fig. 1 is the small-scale work of a kind of stalk fibre silk reinforced cement improvement loose-filled ground that proposes of the present inventionThe process blocks schematic diagram of engineering construction method.
Fig. 2 is the extensive work of a kind of stalk fibre silk reinforced cement improvement loose-filled ground that proposes of the present inventionThe process blocks schematic diagram of engineering construction method.
Fig. 3 is the extensive work of a kind of stalk fibre silk reinforced cement improvement loose-filled ground that proposes of the present inventionThe construction drawing of engineering construction method.
Fig. 4 is that the unconfined compressive strength of each proportion specimen of proposing of the present invention is with the situation of change of stalk volumeSchematic diagram.
Five, detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.
A kind of stalk fibre silk reinforced cement improvement loose-filled ground that the present invention proposes, the component proportion of this groundIn dry ground % by weight, specifically comprising: stalk fibre silk incorporation is 0.5～1.5%, cement mixed weight is 5～8%, loose earth filling incorporation is 90.5～94%, and wherein said stalk fibre filament length degree is 10～15mm.
The typical component proportioning of a kind of stalk fibre silk reinforced cement improvement loose-filled ground that the present invention proposesEmbodiment, in dry ground % by weight:
1, stalk fibre silk incorporation is 0.5%, cement mixed weight is 5%, loose earth filling incorporation is94.5%, wherein said stalk fibre filament length degree is 10mm.
2, stalk fibre silk incorporation is 0.5%, cement mixed weight is 8%, loose earth filling incorporation is91.5%, wherein said stalk fibre filament length degree is 12mm.
3, stalk fibre silk incorporation is 1.0%, cement mixed weight is 5%, loose earth filling incorporation is 94%,Wherein said stalk fibre filament length degree is 11mm.
4, stalk fibre silk incorporation is 1.0%, cement mixed weight is 8%, loose earth filling incorporation is 91%, itsDescribed in stalk fibre filament length degree be 13mm.
5, stalk fibre silk incorporation is 1.5%, cement mixed weight is 5%, loose earth filling incorporation is 93.5%,Wherein said stalk fibre filament length degree is 14mm.
6, stalk fibre silk incorporation is 1.5%, cement mixed weight is 8%, loose earth filling incorporation is 90.5%,Wherein said stalk fibre filament length degree is 15mm.
In conjunction with Fig. 1, a kind of stalk fibre silk reinforced cement improvement loose-filled ground proposing based on the invention described aboveSmall-scale engineering construction method, comprise following concrete steps:
Step 1, raw material is weighed: the component proportion of described ground is in dry ground % by weight, and stalk fibre silk mixesAmount is 0.5～1.5%, cement mixed weight 5～8%, loose earth filling are 90.5～94%, wherein said stalk fibreFilament length degree is 10～15mm;
Step 2, raw material mix: stalk fibre silk, cement and loose earth filling by step 1 after weighing are sent into and stirredMix machine, make its mix evenly form mixture;
Step 3, mixture landfill: by the mix of stalk fibre silk, cement and loose earth filling after step 2 mixThing carries out landfill, becomes the landfill thing of ground shape;
Step 4, landfill thing rolls or tamps: by stalk fibre silk, cement and pine after step 3 landfill groundThe landfill thing banketing rolls or tamps, and becomes ground.
The small-scale engineering construction of a kind of stalk fibre silk reinforced cement improvement loose-filled ground that the present invention proposesThe further preferred version of method is: described in step 2, mix refers to first cement and loose earth filling are stirred, soThe small-sized hair-dryer of rear employing is blown into filament equably in mixer and with cement and stirs together with loose earth fillingMix, until stir, taking the stalk without bunchy as qualified; Described stalk fibre silk, cement and pine are filled outWater content when soil mix counts 10～15% with dry ground % by weight; Described in step 4, landfill thing rolls or tamps,Refer to layered rolling or compacting, its lift height is 10～20cm, taking 18cm as good.
In conjunction with Fig. 2, a kind of stalk fibre silk reinforced cement improvement loose-filled ground proposing based on the invention described aboveLarge-scale engineering construction method, it is characterized in that comprising following concrete steps:
Step 1, raw material is weighed: the component proportion of described ground is in dry ground % by weight, and stalk fibre silk mixesAmount is 0.5～1.5%, cement mixed weight is 5～8%, loose earth filling incorporation is 90.5～94%, wherein saidStalk fibre filament length degree is 10～15mm;
Step 2, site operation: be followed successively by base frame upper berth, ground loose earth filling, the cement that paves, cement and turn, sprayPenetrate stalk fibre silk, stalk fibre silk mix, surface evening and cal rolling, become ground.
The large-scale engineering construction of a kind of stalk fibre silk reinforced cement improvement loose-filled ground that the present invention proposesThe further preferred version of method is: described in step 2, site operation is, after the cement that paves, adopts rooter to dig,Adopt again harrower that cement and loose earth filling are carried out to 2～4 times turning and soil block is smashed to processing, smashAfter loose earth filling particle diameter be controlled at below 5cm, then adopt the vertical road of agricultural rooter direction to dig, subsequently strawStalk fiber silk is sprayed on the face of digging, and finally the foundation soil turning over for the second time is just covered and sprays stalk fibreIn the one side of silk, the like until the subgrade soils of vertical road direction is digged complete; Describedly dig for the second time, at horizontal strokeRoad direction is digged with rooter and is repeated to indulge the method sprinkling stalk fibre silk of road direction.
The concrete reality of the construction method of a kind of stalk fibre silk reinforced cement improvement loose-filled ground that invention proposesExecute example, improve respectively small-scale and the large-scale engineering construction work of loose-filled ground with stalk fibre silk reinforced cementProcess is example.
One, raw material are prepared
Stalk fibre silk: this straw silk is one in wheat stalk silk, rice straw silk or broomcorn straw silkKind, two or more is mixed; This stalk fibre silk is that straw rolls processing after natural air drying, straightAutomatically rive from centre along machine direction and form to straw, then getting its length 10～15mm is strawStalk fiber silk; Described straw is one in wheat stalk, rice straw or broomcorn straw, two kinds or twoMixed more than kind.
Cement: the general cement that adopts general civil construction project to use; This general cement refer to portland cement,Portland cement, portland slag cement, Portland pozzolana cement, Portland fly ash cement orComposite Portland cement, meets " Portland cement GB175-1999 " standard.
Loose earth filling: adopt plasticity index be greater than 10 and dilatancy belong to medium above expansive clay.
Water: water content when loose earth filling and cement and stalk fibre silk mix with dry ground % by weight count 10～15%, if when the natural moisture content of loose earth filling has reached 10～15%, do not need the additional water yield, otherwise needWant the additional water yield.
Two, engineering construction process method
According to the size of project scale, blending craft can be divided into two classes: mixer mix and job mix.
(1) to being applied to the small-scale engineering construction such as side slope and retaining wall, can adopt mixer mix method,As adopt rotary mixer, the surperficial also available coupling molecule of stalk fibre silk is carried out to surface treatment.
Because the loose earth filling under native state easily lumps, so should first loose earth filling be pulverized before stirring, pulverizeAfter loose earth filling grain diameter be controlled at below 5cm; When mix, first cement and loose earth filling are put into and rolled in proportionCylinder mixer stirs 5min, then the stalk fibre of regulation volume is blown in mixer with small-sized hair-dryer, realityIn matter, be by means of wind-force, stalk fibre silk to be broken up, and then according to the requirement of water content, in mixer allThe water that even injection is appropriate, stirs sampling immediately after 10～15min, observe fiber in loose earth filling mixture pointLoose state, filament dispersion should be more even under normal circumstances.
(2) to being applied to the large-scale engineering construction such as roadbed and ground, stalk fibre silk, cement and pine are filled outThe mix of soil can directly adopt job mix, and its site construction technology method can specifically be subdivided into following stepRapid:
The one, leveling roadbed or bedding, then spread loose earth filling, and this loose earth filling laying depth is 25～50cm, pressesReal thickness 10～20cm;
The 2nd, by the match ratio of designing requirement, cement is paved equably at the upper surface of loose earth filling layer, table on thisFace should be smooth, and thickness should be even;
The 3rd, utilize rooter scarifying to banket, cement is dissolved in loose earth filling as far as possible, then with rake car to turning overSoil carries out 2～3 times and turns; This operation both can make cement and loose earth filling mix even, can smash again loose earth filling soilPiece, is controlled at below 5cm loose earth filling granular size, also can make loose earth filling and stalk fibre silk mix; TurnLeveling mixture surface after finishing;
The 4th, adopt rooter scarifying to banket along vertical road direction, the section of at every turn digging is 30～40cm, thenAdopt air compressor that stalk fibre silk is ejected into by the surface of the mixture of the cement after digging and loose earth filling,Dig next time and just in time cover the upper surface of digging above, until vertical road direction been sprayed; Stalk fibre silkSpray and want evenly, the flow of injection should be set according to the design volume of stalk fibre silk, now stalk fibreSilk consumption is its total amount 50%;
The 5th, adopt rooter to dig along cross road direction, construction method is identical with the 4th step, now stalk fibreSilk consumption is its total amount 50%; After stalk fibre silk being sprayed with rake car again by stalk fibre silk, cementCarry out the scarifying of 2～3 times with the mixture road surface of loose earth filling composition, its objective is in order to make mixture road surfaceBetween component, abundant contact and mix are even;
The 6th, adopt bull-dozer road pavement paving and leveling, referring to " scene, JTGE60-2008 highway subgrade road surfaceTest procedure " carry out smooth;
The 7th, adopt road roller the stalk fibre silk reinforced cement earth surface after flattening to be carried out to the stone roller of 2～4 timesPress.
The large-scale engineering construction of a kind of stalk fibre silk reinforced cement improvement loose-filled ground that the present invention proposesMethod execute-in-place flow process is referring to Fig. 3. Shown in Fig. 3, successively: Fig. 3 a according to consumption on original groundPaving loose earth filling; Fig. 3 b lays cement on loose earth filling according to consumption; Fig. 3 c is taking the section of digging as unit, and employing is turned overNavy barrow turns loose earth filling and cement, digs from cross road direction or vertical road direction; Fig. 3 d adopts rakeCar is by cement and loose earth filling uniform stirring; Fig. 3 e is again taking the section of digging as unit, from cross road or vertical road directionThe section of digging on adopt air compressor to spray stalk fibre silk; Fig. 3 f adopts rake car by stalk fibre silkBecome mixture with cement with loose earth filling three uniform stirring; Fig. 3 g adopts bull-dozer slightly to put down; Fig. 3 h adoptsRoad roller and manually to carry out essence flat.
For higher roadbed or thicker ground, can adopt the method for layering processing, i.e. the construction of every layer is all pressedAbove-mentioned 7 concrete steps are carried out; In addition, aspect maintenance, stalk fibre silk reinforced cement earth is similar to generallySoil cement, its curing time is 28 days, preferably adopts the thin mould fencing lawn of plastics. Table 1 is sample of the present inventionUnconfined compression strength test result. As seen from Table 1, utilize stalk fibre silk improvement swelled ground, Ke YimingThe unconfined compressive strength of the aobvious enhancing soil body. When stalk fibre silk volume from 0 to 1%, non-confining strengthDegree raises with the rising of stalk fibre silk volume, in the time that stalk fibre silk volume is 1.5%, in swelled groundCement mixing content is that 5% respectively the sample unconfined compressive strength of maintenance 7 days, 14 days and 28 days is on a declining curve;When the cement mixing content in swelled ground is the 8% sample unconfined compressive strength of maintenance 7 days, 14 days and 28 days respectivelyIn rising trend, this is relevant with curing age length, the hardenability of sample. So draw 1% left and rightIt is proper that stalk volume is improved swelled ground, as shown in Figure 4. Swelled ground of the present invention is groundConventional loose earth filling, this loose earth filling adopt plasticity index be greater than 10 and dilatancy belong to medium above dilatancyClay.
In the specific embodiment of the present invention, all explanations not relating to belong to the known technology of this area, can be with reference to public affairsKnow that technology is implemented.
The present invention, through validation trial, has obtained satisfied effect.
Table 1: the unconfined compression strength test result of sample of the present invention
Claims (10)
1. stalk fibre silk reinforced cement is improved a loose-filled ground, it is characterized in that the component of described groundProportioning, in dry ground % by weight, specifically comprises: stalk fibre silk incorporation is 0.5～1.5%, cement mixed weightBe 5～8%, loose earth filling incorporation is 90.5～94%, wherein said stalk fibre filament length degree is 10～15mm.
2. the construction based on a kind of stalk fibre silk reinforced cement improvement loose-filled ground claimed in claim 1Method, is characterized in that, for small-scale engineering construction, comprising following concrete steps:
Step 1, raw material is weighed: the component proportion of described ground is in dry ground % by weight, and stalk fibre silk mixesAmount is 0.5～1.5%, cement mixed weight is 5～8%, loose earth filling incorporation is 90.5～94%, wherein saidStalk fibre filament length degree is 10～15mm;
Step 2, raw material mix: stalk fibre silk, cement and loose earth filling by step 1 after weighing are sent into and stirredMix machine, make its mix evenly form mixture;
Step 3, mixture landfill: by the mix of stalk fibre silk, cement and loose earth filling after step 2 mixThing carries out landfill, becomes the landfill thing of ground shape;
Step 4, landfill thing rolls or tamps: by stalk fibre silk, cement and pine after step 3 landfill groundThe landfill thing banketing rolls or tamps, and becomes ground.
3. the construction of a kind of stalk fibre silk reinforced cement improvement loose-filled ground according to claim 2Method, is characterized in that described in step 2 that mix refers to first cement and loose earth filling are stirred, and then adopts littleType hair-dryer is blown into filament equably in mixer and with cement and stirs together with loose earth filling, until stirTill mixing evenly, taking the stalk without bunchy as qualified.
4. the construction of a kind of stalk fibre silk reinforced cement improvement loose-filled ground according to claim 2Method, is characterized in that described in step 4 that landfill thing rolls or tamps, and refers to layered rolling or compacting, its layeringThickness is 10～20cm.
5. the construction based on a kind of stalk fibre silk reinforced cement improvement loose-filled ground claimed in claim 1Method, is characterized in that, for large-scale engineering construction, comprising following concrete steps:
Step 1, raw material is weighed: the component proportion of described ground is in dry ground % by weight, and stalk fibre silk mixesAmount is 0.5～1.5%, cement mixed weight is 5～8%, loose earth filling incorporation is 90.5～94%, wherein saidStalk fibre filament length degree is 10～15mm;
Step 2, site operation: be followed successively by base frame upper berth, ground loose earth filling, the cement that paves, cement and turn, sprayPenetrate stalk fibre silk, stalk fibre silk mix, surface evening and cal rolling, become ground.
6. the construction of a kind of stalk fibre silk reinforced cement improvement loose-filled ground according to claim 5Method, is characterized in that described in step 2 that site operation is after the cement that paves, to adopt rooter to dig, then adoptHarrower carries out cement and loose earth filling 2～4 times turning and soil block is smashed to processing, the pine after smashingThe particle diameter that bankets is controlled at below 5cm, then adopts agricultural rooter direct route direction to dig, subsequently stalk fibreSilk is sprayed on the face of digging, and finally the foundation soil turning over for the second time is just covered and sprays one of stalk fibre silkOn face, the like, until the subgrade soils of direction is digged complete by the way; Describedly dig for the second time, in cross road sideTo digging with rooter and repeating the method sprinkling stalk fibre silk of direction by the way.
7. according to a kind of stalk fibre silk reinforced cement improvement loose-filled ground described in claim 2 or 5Construction method, is characterized in that described stalk fibre silk is wheat stalk silk, rice straw silk or broomcorn straw silkIn one, two or more is mixed.
8. according to a kind of stalk fibre silk reinforced cement improvement loose-filled ground described in claim 2 or 5Construction method, is characterized in that described stalk fibre silk is that straw rolls processing after natural air drying, untilStraw is automatically rived from centre along machine direction and is formed.
9. the construction of a kind of stalk fibre silk reinforced cement improvement loose-filled ground according to claim 8Method, is characterized in that described straw is the one, two in wheat stalk, rice straw or broomcorn strawPlant or two or more using with.
10. according to a kind of stalk fibre silk reinforced cement improvement loose-filled ground described in claim 2 or 5Construction method, the water content while it is characterized in that stalk fibre silk, cement and loose earth filling mix is with dry ground % by weightCount 10～15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407276.1A CN104234026B (en) | 2014-08-18 | 2014-08-18 | A kind of stalk fibre silk reinforced cement improvement loose-filled ground and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407276.1A CN104234026B (en) | 2014-08-18 | 2014-08-18 | A kind of stalk fibre silk reinforced cement improvement loose-filled ground and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234026A CN104234026A (en) | 2014-12-24 |
| CN104234026B true CN104234026B (en) | 2016-05-25 |
Family
ID=52222860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410407276.1A Expired - Fee Related CN104234026B (en) | 2014-08-18 | 2014-08-18 | A kind of stalk fibre silk reinforced cement improvement loose-filled ground and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104234026B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239558B (en) * | 2015-09-02 | 2017-07-28 | 河海大学 | A kind of expansive soil foundation improved with wood fiber and its implementation |
| CN105507102B (en) * | 2015-12-15 | 2018-02-09 | 上海交通大学 | A kind of construction method reinforcing road bed with waste or used plastics woven bag |
| CN108411884A (en) * | 2018-03-19 | 2018-08-17 | 吴慧明 | A kind of processing method of barged-in fill shallow-layer physical solidification |
| CN110528346A (en) * | 2019-07-24 | 2019-12-03 | 中国一冶集团有限公司 | A kind of Red Sandstone improvement construction method |
| CN111945700A (en) * | 2020-07-30 | 2020-11-17 | 海南大学 | Composite reinforcement foundation and manufacturing method thereof |
| CN112341056A (en) * | 2020-11-16 | 2021-02-09 | 盐城工学院 | Straw reinforced cement soil and application thereof |
| CN114108591A (en) * | 2021-12-09 | 2022-03-01 | 南京信息工程大学 | Improved expansive soil and preparation method, construction method and application thereof |
| CN114277815A (en) * | 2022-01-30 | 2022-04-05 | 湖北工业大学 | Geogrid reverse-wrapped modified expansive soil flexible ecological slope protection structure and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000234329A (en) * | 1999-02-15 | 2000-08-29 | Yoshitaka Tateiwa | Ground improvement material and manufacture of improved ground |
| CN1932167A (en) * | 2006-07-25 | 2007-03-21 | 南京大学 | Chopped fiber reinforced rendzinas ground treatment method |
| CN103422491A (en) * | 2013-06-28 | 2013-12-04 | 上海理工大学 | Palm fiber reinforced soil, preparation method thereof and application |
| CN103833297A (en) * | 2014-01-07 | 2014-06-04 | 清华大学 | High performance cement soil and preparation method thereof |
-
2014
- 2014-08-18 CN CN201410407276.1A patent/CN104234026B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000234329A (en) * | 1999-02-15 | 2000-08-29 | Yoshitaka Tateiwa | Ground improvement material and manufacture of improved ground |
| CN1932167A (en) * | 2006-07-25 | 2007-03-21 | 南京大学 | Chopped fiber reinforced rendzinas ground treatment method |
| CN103422491A (en) * | 2013-06-28 | 2013-12-04 | 上海理工大学 | Palm fiber reinforced soil, preparation method thereof and application |
| CN103833297A (en) * | 2014-01-07 | 2014-06-04 | 清华大学 | High performance cement soil and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| "秸秆复合纤维材料路用性能试验及评价研究";郎森;《中国优秀硕士论文电子期刊工程科技Ⅱ辑》;20120531;C034-227 * |
| "纤维水泥土力学性能试验研究";李云峰等;《建筑科学》;20041230;第20卷(第6期);第56-60页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104234026A (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104234026B (en) | A kind of stalk fibre silk reinforced cement improvement loose-filled ground and construction method thereof | |
| CN108842557B (en) | Temporary road pavement structure and road building method | |
| CN100439605C (en) | Chopped fiber reinforced rendzinas ground treatment method | |
| CN104402339B (en) | The constructional method of pervious concrete | |
| CN109914178B (en) | Construction method for integrally paving road by using bio-enzyme curing material | |
| CN106587835B (en) | A kind of cold mixing formula Cement emulsified asphalt concrete and its method for paving | |
| CN101684409A (en) | Soil chemical stabilizer formula and application | |
| CN109594445A (en) | A kind of ecology environmental protection color asphalt paving and its construction method | |
| CN103882788B (en) | Based on the method for constructing roadway of the modification roller compacted concrete surface layer of enzyme soil cured substrate layer | |
| CN105924124A (en) | Soil stabilizer for reinforcing roadbed base | |
| CN104988901A (en) | Method for modifying swelling soil through iron tailing fine sand and construction method thereof | |
| CN109626884A (en) | Composite curing additive cement stabilized road base mixture and its application method | |
| CN112779016A (en) | High-strength soil-fixing rock powdery material, preparation method and application | |
| CN108589457B (en) | The modification method of two high dirt road based fillers | |
| CN103161119B (en) | A kind of new method of rebuilding old road of turning waste into wealth | |
| CN101691735A (en) | Method for constructing road pavement | |
| CN103242013A (en) | Low-quality-flyash concrete pavement material and construction method thereof | |
| CN116655305A (en) | Recycled aggregate composite stabilized soil and proportioning design method and manufacturing method thereof | |
| CN103981882B (en) | Anti-settling construction method for large-area underground chamber-free foundation | |
| CN103669332B (en) | A kind of earth material with high unconfined compressive strength | |
| Zhang et al. | Application and curing mechanism of soil stabilizer | |
| CN103161110B (en) | The long-lived environmental protection of a kind of water-proofing anticracking is built the road new method | |
| CN102690099B (en) | Application of soil hardener in wall body building of greenhouse | |
| CN105239558B (en) | A kind of expansive soil foundation improved with wood fiber and its implementation | |
| CN101775801B (en) | Novel self maintenance cement soil pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20190818 |