CN101886394A - Method for treating shallow disease of expansive soil slope - Google Patents
Method for treating shallow disease of expansive soil slope Download PDFInfo
- Publication number
- CN101886394A CN101886394A CN 201010211710 CN201010211710A CN101886394A CN 101886394 A CN101886394 A CN 101886394A CN 201010211710 CN201010211710 CN 201010211710 CN 201010211710 A CN201010211710 A CN 201010211710A CN 101886394 A CN101886394 A CN 101886394A
- Authority
- CN
- China
- Prior art keywords
- slope
- expansive soil
- compound
- grid
- level
- 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
Images
Abstract
The invention discloses a method for treating a shallow disease of an expansive soil slope. The method comprises the following steps of: 1, excavating the slope into different levels; 2, constructing a protection foundation by using cement mortar: uniformly painting a cement mortar layer on a slope base of each level of the excavated multi-level stepped slope to form a slope base protection foundation; 3, treating the slope level by level: treating the multi-level slope of the multi-level stepped slope level by level from top to bottom or from bottom to top, wherein for any level of the slope Ai, the treatment process comprises the following steps of: laying and fixing waste tires; overlaying a mixed material; covering geogrids; and paving non-woven fabrics; and 4, post-stage curing: curing the mixed material according to a conventional herbaceous plant curing method. The method for treating the shallow disease of the expansive soil slope has the advantages of novel and reasonable design, simple and practical operation, low cost, good treatment effect and capacity of effectively solving the problem of shallow diseases of the expansive soil slope.
Description
Technical field
The invention belongs to the expansive soil slope and administer technical field, especially relate to a kind of method for the treatment of shallow disease of expansive soil slope.
Background technology
Expansive soil is distributed in the arid and semi-arid lands more, has found to exist the country of expansive soil to have more than 40 so far, and China also has more than 20 province all to have expansive soil.The mineralogical composition of expansive soil because it has significant swell-shrink characteristics, can be brought great economic loss based on the montmorillonite and the illite of strong hydrophilicity to engineering construction.After raining, expansive soil slope top layer regular meeting a layer thickness occurs less than the domatic slippery disease of the shallow-layer of 1m, thereby the stability on expansive soil slope is puzzlement people's a difficult problem always.Because expansive soil has and some different engineering propertiess of normal consolidation clay, as overconsolidation, fissurity and water-swellable, dehydration shrinkage cracking etc., make conventional slope protection and reinforcement measure and slope stability analytical method can not be applicable to the expansive soil slope.
At present, about expansive soil disease punishment technology, also there is not a cover mature technique standard to instruct.From general status, the safeguard procedures that the expansive soil slope has all adopted some to suit measures to local conditions more or less.Nowadays, at the domatic means of defence in expansive soil slope, mainly contain following several:
The first, change to fill out with expansive soil and mix grey modification method: this cushion is most economical, the most reliable punishment method in all method for processing foundation.But when the exchange filling amount was excessive, roach may take a large amount of soils, and caused ecological environment problem; Certain areas may also exist borrow earth difficulty or the excessive problem of borrow earth cost, thereby the practical operation difficulty of getting up is bigger.
The second, organic macromolecule solution improved method: this modification method generally is used for the shallow stability on expansive soil moat slope more to be handled.At present, the organic macromolecule solution improving technology of domestic comparative maturity has DAH improvement liquid etc., but this punishment method has greater environmental impacts.
Three, lime pile or lime soil pile reinforcing method: when the lime pile reinforcing method is used for the bigger expansive soil treatment of soft foundation of thickness, have special advantages.But this method expense is higher, and construction technical requirement is also higher.
Four, water proof sealing and sewer drainage: the water proof sealing is to adopt materials such as geotechnological canvas cloth, lime and clay compound that the domatic water proof that carries out is sealed, stop the influence of weather drying and watering cycle to the expansive soil water content, reach the purpose of stabling slope, but construction technology is complicated.
Five, complete domatic dirty worker's protection method: this method will be sealed the growing environment of plant, make forever to recover the natural vegetation of excavating destruction because of expressway construction.
Six, skeleton grass planting stabilizing slope method: this means of defence is applicable to the slope that the gradient is slow, and the slope on general treated slope is than less than 1: 0.75, and is relatively poor to the slope disease effect that the gradient is steeper.
That to sum up, is nowadays adopted all exists defective and deficiencies such as ambient influnence is big, cost is high, construction is complicated, vegetation deterioration is serious, protection effect is relatively poor to some extent at the domatic above-mentioned several means of defences in expansive soil slope.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art, a kind of method for the treatment of shallow disease of expansive soil slope is provided, it is novel in design rationally, operation is simple, cost is low and regulation effect is good, can effectively solve top layer, expansive soil slope disease problem.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of method for the treatment of shallow disease of expansive soil slope is characterized in that this method may further comprise the steps:
Step 1, slope classification excavation: treated expansive soil slope is carried out the classification excavation and formed multistage step slope; Described multistage step slope comprises level from the bottom to top to the multistage slope that distributes, and is the boundary with the horizontal stand between the adjacent two-stage slope, and the vertical height on each grade slope is 6m～8m, and the width of described horizontal stand is 2m～4m;
Step 2, the construction of cement mortar spats: the sloping end on each grade slope in described multistage step slope and the intersection of described horizontal stand, all smear one deck cement sand bed as slope end spats;
Step 3, carry out slope punishment step by step: the multistage slope in the described multistage step slope is punished step by step, and all identical, from top to bottom or from the bottom to top to one-level slope A arbitrarily wherein to the punishment method on each grade slope
i, its punishment process may further comprise the steps:
301, junked tire is put and is fixing: from current treated slope A
iThe sloping end, from the bottom to top at slope A
iDomatic on line by line, continuously every and put a plurality of junked tires continuously, all junked tires in the adjacent two row junked tires all are staggered to be laid, and is placed in slope A
iAll connect as one and all-in-one-piece tire nerve of a covering of corresponding formation by linkage between all junked tires on domatic, described tire nerve of a covering is fixed on slope A by a plurality of fastening devicess
iDomatic on;
302, compound covers: earlier to slope A
iIn domatic compound or the clay of go up filling that do not covered by junked tire until mutually concordant with the top edge of junked tire, evenly covering a bed thickness again on junked tire and populated compound or clay is the compound of 2～5cm, correspondingly forms a compound covering layer on described tire nerve of a covering;
Described compound is 30 ± 5: 60 ± 2 for the wheat straw waste, clay, mixing fertilizer and grass-seed and fours' that evenly mix volume ratio: 1 ± 0.5: 9 ± 0.5; Described wheat straw waste is the wheat straw waste of rotting rate＜2% that produced in 1～2 year before the preparation compound, and the stalk quantity of length＞3cm is not less than 80% in the selected wheat straw waste; Described clay is the clay of the suitable herbaceous plant growth of institute's construction site; Described to mix fertile be that 20 ± 5: 10 ± 5 ratio evenly mixes for chemical fertilizer or by chemical fertilizer and farm manure by volume, contains percentage by weight in the described chemical fertilizer and be 10%～15% nitrogen and percentage by weight and be 15%～20% potassium phosphate; Described grass-seed is the grass seeds seed in the growth of institute construction site geographical environment of suiting;
303, geo-grid coating: one geo-grid topping of coating on described compound covering layer; described geo-grid topping is assemblied to form by being coated on the supratectal polylith simple tension of described compound plastics geo-grid side by side, and described simple tension plastics geo-grid fixedly is anchored at described slope A by a plurality of fasteners
iOn;
304, nonwoven is laid: lay layer of non-woven fabric on institute's coating geo-grid topping;
305, repeating step 301 is finished the punishment process on slopes at different levels in the described multistage step slope step by step to step 304;
Step 4, later stage maintenance: according to the soil property of clay described in the step 302 and the growth period of selected grass seeds, the herbaceous plant maintenance process is carried out maintenance to described compound routinely.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope is characterized in that: the slope ratio on grade slope of each described in the step 1 is 1: 1 ± 0.4.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope is characterized in that: the thickness of cement sand bed described in the step 2 is 0.5m ± 0.2m.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope is characterized in that: the flat ratio of junked tire described in the step 301 is 80,75,70,60 or 55.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope is characterized in that: the A of slope described in the step 302
iIn the domatic internal voids that comprises each junked tire, zone and the described slope A between adjacent two or adjacent three junked tires that are not covered by junked tire
iThe zone that edge, the left and right sides and junked tire of sloping top less than are put.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope is characterized in that: the linkage described in the step 302 is the wire rope of colligation between adjacent two junked tires, and described fastening devices is that the upper end is fixed on the anchor studs on the described wire rope.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope is characterized in that: also comprise humus soil in the mixing fertilizer described in the step 302, the volume ratio of described humus soil and chemical fertilizer is 10 ± 5: 70 ± 10.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: the stretched plastic that the simple tension plastics geo-grid described in the step 303 is 110kN～150kN by every linear meter(lin.m.) tensile yield power is made, and the level of described simple tension plastics geo-grid is 2m～2.5m to width.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope is characterized in that: fastener described in the step 303 is the U-shaped fastener that the bottom is provided with anchor studs.
The method of above-mentioned a kind for the treatment of shallow disease of expansive soil slope is characterized in that: the nonwoven described in the step 304 is that individual layer and specification are 10g/m
2～12g/m
2Or 14g/m
2Nonwoven or for bilayer and specification be 10g/m
2Nonwoven.
The present invention compared with prior art has the following advantages:
1, widely applicable, be not only applicable to slow slope, the expansive soil slope body of the gradient, and be applicable to slope, the expansive soil slope body that the gradient is steeper, specifically be the expansive soil slope disease of punishment shallow-layer (less than 1m).
2, adopt junked tire punishment slope, realized the waste product utilization, turn waste into wealth, avoided the pollution of junked tire environment; The laying of its junked tire and simple installation, cost is low and environmental protection, easy to operate.
3, method novelty, reasonable in design and effect is remarkable.Because expansive soil has the character that expands and shrink, adopt the rigid treatment method to lose efficacy easily.The present invention combines conventional grass planting technology and junked tire, geo-grid to be applied to and administers disease aspect, expansive soil slope, because tire has elasticity, and geo-grid has unidirectional shrinkage, thereby geo-grid, tire and domatic between can produce a kind of compatible deformation, avoided the destruction on slope, thereby not only construction sequence is simple, easy to operate, cost is low, and regulation effect is good, through the domatic test that can stand extra torrential rain in expansive soil slope of the present invention's improvement.
4, have the soil moisture conservation effect,,, all have the good and stable function of retaining and conserveing soil moisture no matter stalk is concentrated or is distributed in the soil according to Agricultural Scientist's research, can play improve the soil, the effect of saving water, resisting drought and pest-resistant volume increase.The nutritive mud that adopts special preparation among the present invention makes full use of the above-mentioned characteristic of stalk as the grown base of grass, keep the humidity of biological growth, has solved that the expansive soil slope is domatic dries out and shortcoming that plant is difficult for surviving easily.
5, have insulation effect, in planting soil, clay, sneak into stalk after, have certain heat build-up effect, and can effectively stop water evaporates after covering, reduce latent heat consumption, keep domatic temperature, thereby, more help obtaining heat in the low temperature time, promote to emerge.
6, have the greening effect, grass-seed adds mixture thermal-insulating, soil moisture conservation effect under the effect that expedites the emergence of of fertilizer, inorganic fertilizer, is easy to growth, and stalk can improve soil simultaneously, helps plant growing, reaches the domatic effect in greening slope.
7, have the Gu Po effect,, thereby in planting soil, also played reinforced action because stalk toughness is better; Above-mentioned stalk phase lap knot forms organic network and becomes one with the soil body, the most at last to the domatic stabilization that plays on slope.Worker's grid is also fixed above-mentioned geo-grid with "T"-shaped spiral steel owing to spread a layer of clay on the surface, like this, the active force of being made of the integral protection system the slope stability soil body, junked tire and geo-grid will affact on the "T"-shaped spiral steel by geo-grid, just can be with the concentration of local load to transmitting to give full play to the protective capacities of whole protection system all around, thereby make system can bear bigger load and reduce the anchored force requirement of single anchor pole, reach solid sloping purpose.
8, have the greening effect, the effect that expedites the emergence of of fertilizer, inorganic fertilizer is easy to grow reach and afforests the domatic effect in expansive soil slope down in the grass-seed.
In sum, the present invention is novel in design rationally, operation is simple, cost is low and regulation effect is good, can effectively solve top layer, expansive soil slope disease problem.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a method flow diagram of the present invention.
Fig. 2 is the putting position schematic diagram of junked tire of the present invention.
Description of reference numerals:
The 1-junked tire.
The specific embodiment
The method of a kind for the treatment of shallow disease of expansive soil slope as shown in Figure 1 may further comprise the steps:
Step 1, slope classification excavation: treated expansive soil slope is carried out the classification excavation and formed multistage step slope; Described multistage step slope comprises that level is to the multistage slope that distributes from the bottom to top, and be the boundary with the horizontal stand between the adjacent two-stage slope, the vertical height on each grade slope is 6m～8m, the width of described horizontal stand is 2m～4m, and promptly the spacing between the top, the slope on the sloping end on upper level slope and next stage slope is 2m～4m.
In the present embodiment, the slope on each grade slope ratio is 1: 1 ± 0.4.During actual the excavation, the slope on each grade slope ratio can be adjusted in 1: 0.6～1: 1.4 scope.By behind the classification excavation, treated expansive soil slope is divided into multistage slope in case follow-up punishment work simply, conveniently carry out,
Step 2, the construction of cement mortar spats: the sloping end on each grade slope in described multistage step slope and the intersection of described horizontal stand, all smear one deck cement sand bed as slope end spats.During practical operation, the thickness of described cement sand bed is 0.5m ± 0.2m, and the cement mortar that is adopted in the described cement sand bed is the M7.5 cement mortar, can carry out firmly slopes at different levels, not only easy construction, cost of investment is low, and can effectively prevent slope failures at different levels, result of use is very good.
Step 3, carry out slope punishment step by step: the multistage slope in the described multistage step slope is punished step by step, and all identical, from top to bottom or from the bottom to top to one-level slope A arbitrarily wherein to the punishment method on each grade slope
i, its punishment process may further comprise the steps:
301, junked tire is put and is fixing: from current treated slope A
iThe sloping end, from the bottom to top at slope A
iDomatic on line by line, continuously every and put a plurality of junked tires 1 continuously, all junked tires 1 in the adjacent two row junked tires 1 all are staggered to be laid, and is placed in slope A
iAll connect as one and all-in-one-piece tire nerve of a covering of corresponding formation by linkage between all junked tires 1 on domatic, described tire nerve of a covering is fixed on slope A by a plurality of fastening devicess
iDomatic on, see Fig. 2 for details.
The flat ratio that described junked tire 1 is is 80,75,70,60 or 55, and what specifically use is automobile-used rubbery cover tyre.
302, compound covers: earlier to slope A
iIn domatic compound or the clay of go up filling that do not covered by junked tire 1 until mutually concordant with the top edge of junked tire 1, evenly covering a bed thickness again on junked tire 1 and populated compound or clay is the compound of 2～5cm, correspondingly forms a compound covering layer on described tire nerve of a covering.Described slope A
iIn the domatic internal voids that comprises each junked tire 1, zone and the described slope A between adjacent two or adjacent three junked tires 1 that are not covered by junked tire 1
iThe zone that edge, the left and right sides and junked tire 1 of sloping top less than are put.
For a junked tire 1, side's amount of soil of being filled in the space between its internal voids and the outside and the adjacent junked tire 1 or compound is (R
2-π (R
2-r
2)/4) * h/R
2, R is the external diameter of junked tire 1 in the formula, and r is the internal diameter of junked tire 1, and h is the tread width of junked tire 1.
Described compound is 30 ± 5: 60 ± 2 for the wheat straw waste, clay, mixing fertilizer and grass-seed and fours' that evenly mix volume ratio: 1 ± 0.5: 9 ± 0.5; Described wheat straw waste is the wheat straw waste of rotting rate＜2% that produced in 1～2 year before the preparation compound, and the stalk quantity of length＞3cm is not less than 80% in the selected wheat straw waste; Described clay is the clay of the suitable herbaceous plant growth of institute's construction site; Described to mix fertile be that 20 ± 5: 10 ± 5 ratio evenly mixes for chemical fertilizer or by chemical fertilizer and farm manure by volume, contains percentage by weight in the described chemical fertilizer and be 10%～15% nitrogen and percentage by weight and be 15%～20% potassium phosphate; Described grass-seed is the grass seeds seed in the growth of institute construction site geographical environment of suiting.In addition, also comprise humus soil in the described mixing fertilizer, and the volume ratio of described humus soil and chemical fertilizer is 10 ± 5: 70 ± 10.Described grass-seed is the grass seeds seed in the growth of institute construction section geographical environment of suiting.Described chemical fertilizer is solid fertilizer or liquid fertilizer.
During specifically for the selection grass seeds, should consider according to weather, the amount of precipitation of sowing season and the careless growth characteristic combined factors of locality.For example for Western Han Dynastry's highway, when selecting grass seeds, should prolong the weather conditions of highway location in conjunction with Huang, draft is mainly selected alfalfa, bitter beans, wheatgrass, Festuca Arundinacea, sweet vernal grass wooden slippers, sainfoin, coronule flower, Artemisia spharocephala; Undershrub is mainly selected caragana microphylla, the twigs of the chaste tree, spends more lily magnolia, white tattooing, sea-buckthorn, two look shrub lespedezas, false indigo etc.Described clay is that soil adopts plant nutrient soil, and its native source stickiness contains any grittiness by force and not, is specially the soil that fertilizer such as organic matter and oxygen, phosphorus, potassium are enriched in pre-configured containing, and dry density is about 0.8～0.9kN/m
3Farm manure in the described mixing fertilizer should preferentially use through macerating the conventional farm manure of system; Employed chemical fertilizer provides for the standard agrochemical and by packed, and it is that 10%～15% nitrogen and percentage by weight are 15%～20% potassium phosphate that chemical fertilizer should contain percentage by weight, and the content of nitrogen phosphorus potassium is specifically selected according to the soil fertility situation in the chemical fertilizer.Selected water is plantation or maintenance plant water, wherein should not contain oil, acid, alkali or other materials harmful to plant growing, and should meet " (agricultural irrigation water quality standard) " requirement (GB5084-1992).Water stability index 〉=60.0% of described water and the pH value of described nutrient wheat straw mud are 5.5～7.0.
In the present embodiment, at first wheat straw waste is pulverized or blended, and guarantee that the stalk quantity of length＞3cm in the final selected wheat straw waste is not less than 80%.Then, preparation mixes fertile, and described to mix fertile be that 10% farm manure, percent by volume are that 20% chemical fertilizer and percent by volume are that 70% humus soil is evenly trembled synthetic by percent by volume.Be noted that: contain percentage by weight in the chemical fertilizer and be 10%～15% nitrogen and percentage by weight and be 15%～20% potassium phosphate, during actual the use, contain the liquid fertilizer that is not less than above-mentioned effective nutritional labeling and also can use.Afterwards, be 30 ± 5: 60 ± 2 by volume with wheat straw waste, clay, the mixing fertilizer for preparing and the grass-seed of handling well: 1 ± 0.5: 9 ± 0.5 ratio is stirred into compound.Finally, guarantee that grass seeds can evenly grow.
In the present embodiment, described linkage is the wire rope of colligation between adjacent two junked tires 1, described fastening devices is that the upper end is fixed on the anchor studs on the described wire rope, and anchor studs described in this step is specially the "T"-shaped spiral steel that length is 1.5～2.5m.After forming a compound covering layer on the described tire nerve of a covering, play the effect of beautifying the environment on the one hand, specifically be can prevent junked tire 1 to external world environment cause harmful effect; On the other hand, reach and beautify effect, the slope good looking appearance after the feasible punishment.
303, geo-grid coating: one geo-grid topping of coating on described compound covering layer; described geo-grid topping is assemblied to form by being coated on the supratectal polylith simple tension of described compound plastics geo-grid side by side, and described simple tension plastics geo-grid fixedly is anchored at described slope A by a plurality of fasteners
iOn.
During practice of construction, the stretched plastic that selected simple tension plastics geo-grid is 110kN～150kN by every linear meter(lin.m.) tensile yield power is made, and the level of described simple tension plastics geo-grid is 2m～2.5m to width.Described fastener is the U-shaped fastener that the bottom is provided with anchor studs.
During coating simple tension plastics geo-grid, should be undertaken by the order of pushing up from the slope to toe, should notice simultaneously that adjacent two simple tension plastics geo-grid should be close to and continuously every, and the vertically coating of described simple tension plastics geo-grid promptly makes the simple tension plastics geo-grid of institute's coating can carry out longitudinal stretching.Like this, because tire also has retractility, can carry out the simple tension plastics geo-grid of simple tension at coating one deck on the junked tire 1 with retractility after, under the mating reaction of the two, can carry out firm reinforcing to treated expansive soil slope, the punishment effect is very good.
304, nonwoven is laid: lay layer of non-woven fabric on institute's coating geo-grid topping.
In the present embodiment, described nonwoven is that individual layer and specification are 10～12g/m
2Or 14g/m
2Nonwoven or for bilayer and specification be 10g/m
2Nonwoven.
After the geo-grid coating is finished, should be in time on coating geo-grid domatic, cover layer of non-woven fabric, in order to avoid the compound that construction just finishes suffers rainfall to wash away and destroy.In the actual process of deployment, for general side slope, should lay one deck individual layer and specification is 10g/m
2～12g/m
2Nonwoven; For the side slope of high gradient slope, the native loose side slope of table and the construction of non-favorable season, should lay one deck individual layer and specification is 14g/m
2Or bilayer and specification are 10g/m
2Nonwoven.After nonwoven is laid, should adopt U-iron silk nail in time to fix; High slope or place, air port also should press soil or stone in the nonwoven top and the bottom, and reinforce with stay cord at the nonwoven middle part.In addition, nonwoven also should smooth-goingly be close to treated domatic, and does not stay the slit between the nonwoven, in the present embodiment, behind adjacent two nonwoven, 5% overlap joint, fixes with "T"-shaped spiral steel equally.
305, repeating step 301 is finished the punishment process on slopes at different levels in the described multistage step slope step by step to step 304.
Step 4, later stage maintenance: according to the soil property of clay described in the step 302 and the growth period of selected grass seeds, the herbaceous plant maintenance process is carried out maintenance to described compound routinely.
After construction finishes, should carry out according to conventional herbaceous plant maintenance process water, maintenance work such as fertilising.Grass in nutrient wheat straw mud is irritated and has been planted during germination, the growth of seedling, water and maintenance management measure such as the prevention and control of plant diseases, pest control, to guarantee the plant smooth growth.Between curing time, should note plant growing and atmospheric condition at any time, it is moistening and append nutrient to add water in case of necessity, uses the compound fertilizer fertilising once in per in principle 2 months.Planting living coverage scale after the expiration in 12 months reaches more than 90%.
Should note during maintenance: should be vaporific sprinkling when 1. watering, the time is selected in morning or carries out at dusk, must avoid the strong period of sunlight; 2. fertilizer should be selected according to the science of carrying out in the growth period of soil property and grass; 3. fertilising should be in right amount, in good time.
After having constructed in addition, wash away as suffering heavy rain, the irrigation canals and ditches described in the step 1 were washed away in backfill in time after rain stopped, and carried out after-culture simultaneously and covered, to prevent to wash away aggravation.Expose as domatic hidden infiltration hole, should in time add the benefit water-guiding hole, and strengthen the adhesive consumption, delivery port is washed away place's after-culture recover.
Certainly, the present invention should sow, construct and cover in the local season of growth, and should not sow at windy day, also should be in wet excessively face of land sowing.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (10)
1. the method for a treating shallow disease of expansive soil slope is characterized in that this method may further comprise the steps:
Step 1, slope classification excavation: treated expansive soil slope is carried out the classification excavation and formed multistage step slope; Described multistage step slope comprises level from the bottom to top to the multistage slope that distributes, and is the boundary with the horizontal stand between the adjacent two-stage slope, and the vertical height on each grade slope is 6m～8m, and the width of described horizontal stand is 2m～4m;
Step 2, the construction of cement mortar spats: the sloping end on each grade slope in described multistage step slope and the intersection of described horizontal stand, all smear one deck cement sand bed as slope end spats;
Step 3, carry out slope punishment step by step: the multistage slope in the described multistage step slope is punished step by step, and all identical, from top to bottom or from the bottom to top to one-level slope A arbitrarily wherein to the punishment method on each grade slope
i, its punishment process may further comprise the steps:
301, junked tire is put and is fixing: from current treated slope A
iThe sloping end, from the bottom to top at slope A
iDomatic on line by line, continuously every and put a plurality of junked tires (1) continuously, all junked tires (1) in the adjacent two row junked tires (1) all are staggered to be laid, and is placed in slope A
iAll connect as one and all-in-one-piece tire nerve of a covering of corresponding formation by linkage between all junked tires (1) on domatic, described tire nerve of a covering is fixed on slope A by a plurality of fastening devicess
iDomatic on;
302, compound covers: earlier to slope A
iIn domatic the going up that do not covered by junked tire (1) fill compound or clay until mutually concordant with the top edge of junked tire (1), evenly covering a bed thickness again on junked tire (1) and populated compound or clay is the compound of 2～5cm, correspondingly forms a compound covering layer on described tire nerve of a covering;
Described compound is 30 ± 5: 60 ± 2 for the wheat straw waste, clay, mixing fertilizer and grass-seed and fours' that evenly mix volume ratio: 1 ± 0.5: 9 ± 0.5; Described wheat straw waste is the wheat straw waste of rotting rate＜2% that produced in 1～2 year before the preparation compound, and the stalk quantity of length＞3cm is not less than 80% in the selected wheat straw waste; Described clay is the clay of the suitable herbaceous plant growth of institute's construction site; Described to mix fertile be that 20 ± 5: 10 ± 5 ratio evenly mixes for chemical fertilizer or by chemical fertilizer and farm manure by volume, contains percentage by weight in the described chemical fertilizer and be 10%～15% nitrogen and percentage by weight and be 15%～20% potassium phosphate; Described grass-seed is the grass seeds seed in the growth of institute construction site geographical environment of suiting;
303, geo-grid coating: one geo-grid topping of coating on described compound covering layer; described geo-grid topping is assemblied to form by being coated on the supratectal polylith simple tension of described compound plastics geo-grid side by side, and described simple tension plastics geo-grid fixedly is anchored at described slope A by a plurality of fasteners
iOn;
304, nonwoven is laid: lay layer of non-woven fabric on institute's coating geo-grid topping;
305, repeating step 301 is finished the punishment process on slopes at different levels in the described multistage step slope step by step to step 304;
Step 4, later stage maintenance: according to the soil property of clay described in the step 302 and the growth period of selected grass seeds, the herbaceous plant maintenance process is carried out maintenance to described compound routinely.
2. according to the method for the described a kind for the treatment of shallow disease of expansive soil slope of claim 1, it is characterized in that: the slope ratio on grade slope of each described in the step 1 is 1: 1 ± 0.4.
3. according to the method for claim 1 or 2 described a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: the thickness of cement sand bed described in the step 2 is 0.5m ± 0.2m.
4. according to the method for claim 1 or 2 described a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: the flat ratio of junked tire described in the step 301 (1) is 80,75,70,60 or 55.
5. according to the method for claim 1 or 2 described a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: the A of slope described in the step 302
iIn the domatic internal voids that comprises each junked tire (1), zone and the described slope A between adjacent two or adjacent three junked tires (1) that are not covered by junked tire (1)
iThe zone that an edge, the left and right sides and a junked tire of sloping top less than (1) are put.
6. according to the method for claim 1 or 2 described a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: the linkage described in the step 302 is the wire rope of colligation between adjacent two junked tires (1), and described fastening devices is that the upper end is fixed on the anchor studs on the described wire rope.
7. according to the method for claim 1 or 2 described a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: also comprise humus soil in the mixing fertilizer described in the step 302, the volume ratio of described humus soil and chemical fertilizer is 10 ± 5: 70 ± 10.
8. according to the method for claim 1 or 2 described a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: the stretched plastic that the simple tension plastics geo-grid described in the step 303 is 110kN～150kN by every linear meter(lin.m.) tensile yield power is made, and the level of described simple tension plastics geo-grid is 2m～2.5m to width.
9. according to the method for claim 1 or 2 described a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: fastener described in the step 303 is the U-shaped fastener that the bottom is provided with anchor studs.
10. according to the method for claim 1 or 2 described a kind for the treatment of shallow disease of expansive soil slope, it is characterized in that: the nonwoven described in the step 304 is that individual layer and specification are 10g/m
2～12g/m
2Or 14g/m
2Nonwoven or for bilayer and specification be 10g/m
2Nonwoven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102117100A CN101886394B (en) | 2010-06-28 | 2010-06-28 | Method for treating shallow disease of expansive soil slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102117100A CN101886394B (en) | 2010-06-28 | 2010-06-28 | Method for treating shallow disease of expansive soil slope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101886394A true CN101886394A (en) | 2010-11-17 |
| CN101886394B CN101886394B (en) | 2012-04-25 |
Family
ID=43072471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102117100A Expired - Fee Related CN101886394B (en) | 2010-06-28 | 2010-06-28 | Method for treating shallow disease of expansive soil slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886394B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264680A (en) * | 2014-10-01 | 2015-01-07 | 西安科技大学 | Foundation treatment method of collapsible loess slope cut-and-fill joint part |
| CN104775391A (en) * | 2014-09-26 | 2015-07-15 | 王恩厚 | Interception/convergence/drainage stable type slope debris flow preventing method |
| CN104969749A (en) * | 2015-06-25 | 2015-10-14 | 中国科学院武汉植物园 | Method for quickly planting cynodon dactylon on ecological concrete slope |
| CN105908987A (en) * | 2016-04-06 | 2016-08-31 | 内蒙古启原文物古建筑修缮工程有限责任公司 | Ecological reinforcement composite material used for historical site protection project and construction method thereof |
| CN112243788A (en) * | 2020-10-22 | 2021-01-22 | 承德京城矿业集团有限公司 | Method for soft foundation slope geomembrane nutrition pot composite afforestation and locust thereof |
| CN113661854A (en) * | 2021-08-13 | 2021-11-19 | 四川轻化工大学 | Ecological slope protection for preventing geological disasters and construction method thereof |
| CN114031338A (en) * | 2021-11-16 | 2022-02-11 | 长江水利委员会长江科学院 | Cement modified expansive soil, preparation method thereof and cement modified expansive soil ecological base material |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0319512A1 (en) * | 1987-12-02 | 1989-06-07 | WENZL HARTL BAUGESELLSCHAFT M.B.H. & CO. KG | Protective mound, in particular a noise barrier |
| JP3260119B2 (en) * | 1998-06-25 | 2002-02-25 | 日本植生株式会社 | Greening method with planting shelves on the slope |
| CN1358908A (en) * | 2001-10-09 | 2002-07-17 | 邹胜文 | Method for consolidating soil, protecting slope and planting vegetation on rock slope |
| CN1632240A (en) * | 2004-11-23 | 2005-06-29 | 陈永烽 | Method for treating slope slide through modified reinforcement soil blind grids |
| CN1880587A (en) * | 2005-06-17 | 2006-12-20 | 长沙理工大学 | Flexible reinforced retaining structure and construction method therefor |
| CN101285311A (en) * | 2008-05-09 | 2008-10-15 | 水利部交通部电力工业部南京水利科学研究院 | Self-adapting slope protection device for preventing slope deforming with waste tyres and belt seeding coating layer |
| CN101343852A (en) * | 2008-08-19 | 2009-01-14 | 中交第二公路勘察设计研究院有限公司 | Method for filling highroad roadbed by waste steel slags |
| CN101457525A (en) * | 2009-01-08 | 2009-06-17 | 西安科技大学 | Heavy layer flaking diseases method in loess slope |
-
2010
- 2010-06-28 CN CN2010102117100A patent/CN101886394B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0319512A1 (en) * | 1987-12-02 | 1989-06-07 | WENZL HARTL BAUGESELLSCHAFT M.B.H. & CO. KG | Protective mound, in particular a noise barrier |
| JP3260119B2 (en) * | 1998-06-25 | 2002-02-25 | 日本植生株式会社 | Greening method with planting shelves on the slope |
| CN1358908A (en) * | 2001-10-09 | 2002-07-17 | 邹胜文 | Method for consolidating soil, protecting slope and planting vegetation on rock slope |
| CN1632240A (en) * | 2004-11-23 | 2005-06-29 | 陈永烽 | Method for treating slope slide through modified reinforcement soil blind grids |
| CN1880587A (en) * | 2005-06-17 | 2006-12-20 | 长沙理工大学 | Flexible reinforced retaining structure and construction method therefor |
| CN101285311A (en) * | 2008-05-09 | 2008-10-15 | 水利部交通部电力工业部南京水利科学研究院 | Self-adapting slope protection device for preventing slope deforming with waste tyres and belt seeding coating layer |
| CN101343852A (en) * | 2008-08-19 | 2009-01-14 | 中交第二公路勘察设计研究院有限公司 | Method for filling highroad roadbed by waste steel slags |
| CN101457525A (en) * | 2009-01-08 | 2009-06-17 | 西安科技大学 | Heavy layer flaking diseases method in loess slope |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775391A (en) * | 2014-09-26 | 2015-07-15 | 王恩厚 | Interception/convergence/drainage stable type slope debris flow preventing method |
| CN104264680A (en) * | 2014-10-01 | 2015-01-07 | 西安科技大学 | Foundation treatment method of collapsible loess slope cut-and-fill joint part |
| CN104264680B (en) * | 2014-10-01 | 2016-04-27 | 西安科技大学 | The method for processing foundation of Tian Wa joint portion, a kind of collapsible loess slope |
| CN104969749A (en) * | 2015-06-25 | 2015-10-14 | 中国科学院武汉植物园 | Method for quickly planting cynodon dactylon on ecological concrete slope |
| CN105908987A (en) * | 2016-04-06 | 2016-08-31 | 内蒙古启原文物古建筑修缮工程有限责任公司 | Ecological reinforcement composite material used for historical site protection project and construction method thereof |
| CN112243788A (en) * | 2020-10-22 | 2021-01-22 | 承德京城矿业集团有限公司 | Method for soft foundation slope geomembrane nutrition pot composite afforestation and locust thereof |
| CN113661854A (en) * | 2021-08-13 | 2021-11-19 | 四川轻化工大学 | Ecological slope protection for preventing geological disasters and construction method thereof |
| CN114031338A (en) * | 2021-11-16 | 2022-02-11 | 长江水利委员会长江科学院 | Cement modified expansive soil, preparation method thereof and cement modified expansive soil ecological base material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101886394B (en) | 2012-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106900342B (en) | Integrated semi-lithologic high slope vegetation reconstruction protection method | |
| CN101886394B (en) | Method for treating shallow disease of expansive soil slope | |
| CN103265355B (en) | Plant growth matrix with high water retention for spray seeding revegetation and preparation method thereof | |
| CN107100176B (en) | A kind of expressway slope greening system | |
| CN107382608A (en) | A kind of vegetation is multiple green to sow grass seeds by duster auxiliary material, sow grass seeds by duster material and the multiple green construction method of vegetation without native composite fibre | |
| WO2021175263A1 (en) | Fully-ecological slope spray-seeding structure and construction method | |
| CN101507391B (en) | Rock slope-surface ecology treatment method | |
| CN101904261B (en) | Method for restoring side slope ecology by adopting AB (Acinetobacter baumannii) bacterium plant growing bags | |
| CN105123212B (en) | A kind of method that slope vegetation protection is carried out using vegetable fiber blanket | |
| CN110089353A (en) | A kind of hard side slope greening restoration method | |
| CN208266847U (en) | Quickly repair structure in Gullied suitable for Canal in Loess Area | |
| CN111316850A (en) | High and steep slope vegetation and planting method thereof | |
| CN108093729A (en) | Side-slope greening and protection method | |
| CN110485441A (en) | It repairs with leaching net formula ecological slope protection structure and its construction method of sowing grass seeds by duster in mine | |
| CN106638630A (en) | Ecological greening device for side slope with flexible ceramsite plates, and greening method thereof | |
| CN107964964A (en) | Technology and its construction method is made in high gradient slope surface of a wound preventing rain wash fiber | |
| CN105594564A (en) | Rainwater collecting and deep infiltrating method for economic forest in mountainous region | |
| CN113235623A (en) | Thick-layer base material foreign soil spray-seeding structure suitable for ecological restoration of high and steep slope and construction method thereof | |
| CN107964963A (en) | High gradient slope surface of a wound fiber reinforcement crumb structure recovery technique and its construction method | |
| CN1122183A (en) | Sand land mulching film cultivation method for rice | |
| CN101457525B (en) | Loess slope heavy layer flaking diseases treatment method | |
| CN110073757A (en) | A kind of greening method of high precipitous rock slope surface | |
| RU2751851C1 (en) | Method for intensive lawn growing with water enrichment of soil using superabsorbent during irrigation | |
| CN109763497A (en) | A kind of flexibility slope ecological guard system and its construction method | |
| CN205337116U (en) | Straw fixes sand store water and plants blanket |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20130628 |