CN204676571U - A kind of flexible protective slope structure of feldspathic sandstone natural slope - Google Patents
A kind of flexible protective slope structure of feldspathic sandstone natural slope Download PDFInfo
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- CN204676571U CN204676571U CN201520244657.2U CN201520244657U CN204676571U CN 204676571 U CN204676571 U CN 204676571U CN 201520244657 U CN201520244657 U CN 201520244657U CN 204676571 U CN204676571 U CN 204676571U
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Abstract
A flexible protective slope structure for feldspathic sandstone natural slope, comprises micro-profit system realm, single-layer flexible web area, greening vegetation region and cementing material bonding course region.The flexible edge slope structure of the utility model is coordinated mutually with the landscape environment of surrounding, has the combination properties such as the mechanical property of excellence, UV resistant degradation property, weather-proof, water erosion and mass erosion performance, freeze thawing resistance, water conservation, insulation, fertilizer conservation.
Description
Technical field
The utility model relates to a kind of protective slope structure of natural slope, has the flexible protective slope structure relating to a kind of feldspathic sandstone natural slope.
Background technology
In the Jin-Shan-Meng adjacent area of the Huanghe valley, be dispersed with and be commonly called as ravelly ground into " feldspathic sandstone ", the rock alternating layers be made up of the Permian Period in the Paleozoic Era, Triassic period in Mesozoic Era, Jurassic Period and cretaceous thick-layer sandstone, sand shale and argillaceous sandstone by locals.This stratum is continental clastic system, and rock stratum thickness is little, pressure is low, thus cause that its diagenetic grade is low, degree of consolidation is poor between the grains of sand, structural strength is low, anhydrous as hard as flint, it is then soft as mud to meet water.
At present, for solving the anhydrous as hard as flint of feldspathic sandstone, meet the water then soft problem as mud, domestic existing scholar's research also proposes multiple different control measures, but due to semifinished product and glaze land occupation condition difference water resources shortage in addition, biological control measure is difficult to implement in full, moreover it is general with cement in slope protection works, building stones, the hard materials such as concrete are main building materials, the preferential angle with mechanics goes to think deeply stability of slope in design, have ignored restoration of the ecosystem, makes the ecological functions of natural slope recover more difficult; In this type of natural slope restoration of the ecosystem, do not consider that periphery natural environment, phytoremediation such as to coordinate mutually at the factor simultaneously, inharmonious with the view of periphery, disagree with the development trend focusing on preserving the ecological environment at present.Therefore; feldspathic sandstone adopts protect, create premised on biological good living environment and natural landscape; while ensureing that bank protection has certain intensity, safety and durability; take into account the environmental effect of engineering, to reach a kind of soil body and biology conserves mutually, the flexible protective slope structure of novel consolidation growth-promoting of the imitative nature that is applicable to biological growth is development trend.
Summary of the invention
Technical problem to be solved in the utility model is, provides one to have high safety, and restoration of the ecosystem is good, keeps the flexible protective slope structure of the feldspathic sandstone natural slope of harmony and natural ecological environment.
The technical scheme that the utility model solves the employing of its technical problem is, a kind of flexible protective slope structure of feldspathic sandstone natural slope, comprise micro-profit system realm, single-layer flexible web area, greening vegetation region and cementing material bonding course region, wherein, described micro-profit system realm by being laid on Po Ding district catchwater, micro-profit pipe in water pit and medium gradient district forms; Described single-layer flexible web area by bottom catchwater, furrow bank, bottom water pit, Jiao Bi, abrupt slope district, medium gradient district respectively linked network is formed; Described greening vegetation region is by apart from domatic 10m scope Nei Poding district, medium gradient district, toe gentle slope district, toe district broadcasts sowing well developed root system, growing power is strong, drought-enduring, adaptive faculty is strong herbaceous plant respectively and plants drought-enduring, that survival ability is stronger arbor and/or shrub is formed; Described cementing material bonding course region is by within the scope of the outer 0.5m of the bottom of trench of catchwater, furrow bank and catchwater top curve, and bottom water pit, within the scope of Jiao Bi and water storage kilneye periphery 0.5m, abrupt slope district, medium gradient district, toe gentle slope district spraying cementing material is formed.
Further, described catchwater is arranged in domatic 4 ~ 6 meters of the offset in top, slope, and described water pit is arranged on catchwater, and water pit is separated by between 8 ~ 12m between two; Described micro-profit pipe depth of burying is 5 ~ 10cm, inner pipe water pressure is 2.4 ~ 2.6kPa, micro-profit pipe is connected with flexible duct between the two with water pit, the feed pipe of micro-profit pipe arranges reducing valve, each reducing valve controls 3 ~ 4 micro-profits and manages, and the spacing between adjacent micro-profit pipe is between 0.5 ~ 0.7m, and water supply control range is each 0.3m up and down, micro-profit pipe tail end snap joint that each reducing valve controls connects, and forms shunt circuit.
Further again, described catchwater adopts trapezoidal cross-section, and side slope ratio is 1: 0.5, ditch bottom width 400cm, ditch top width 900cm; Described water pit base diameter is 1000cm, and top diameter is 1400cm, stores dark 1000cm, and side slope ratio is 1: 0.2.
Further, described single-layer flexible web area is fixed by length 50 ~ 60cm anchor from top to bottom, adjacent two volume flexible net junctions require the overlap of 20 ~ 30cm simultaneously, and fix with anchor, described anchor is indulged horizontal spacing and is controlled at 1.5 ~ 2.5m, and local need control at 1m by vertical horizontal spacing at the place of encryption.
Further, described greening vegetation region is Po Ding district plantation sea-buckthorn and Chinese pine, broadcast sowing Wheatgrass, kirschner wheatgrass, buffalograss, creeping bentgrass grass seeds, medium gradient district, toe gentle slope district all adopts grass, fills with the stereoscopic configurations pattern of the plantation that combines, and sows water-loss reducer, described shrub selects sea-buckthorn, in the centre position of micro-profit pipe every 0.8 meter of plantation, 2 sea-buckthorns, the depth of burying of sea-buckthorn is 15 ~ 20cm, sows Wheatgrass, kirschner wheatgrass, buffalograss, creeping bentgrass four kinds of grass seeds; Toe district plantation willow, Chinese pine, caragana microphylla, broadcast sowing Wheatgrass, kirschner wheatgrass, total application rate 20g/m
2.
Further, the bottom of trench of the catchwater in Po Ding district and side slope be even application 8% cementing material W-OHC solution from top to bottom, forms thick 4 ~ 5cm bonding course; Within the scope of the outer 0.5m of catchwater top curve, earth's surface sprays 8% cementing material W-OHC solution, forms thick 5cm bonding course; Bottom the water pit in Po Ding district and Jiao Bi even application 10% cementing material W-OHC solution from top to bottom, form thick 4 ~ 5cm bonding course; Spray 10% cementing material W-OHC solution within the scope of water storage kilneye periphery 0.5m, form thick 5cm bonding course; Abrupt slope district spraying concentration is the cementing material W-OHC solution of 10%, the fountain height of every square controls at 2.0 ~ 3.0L, ensure the thickness 2 ~ 3cm of infiltration, slope angle medium gradient district spraying concentration is the cementing material W-OHC solution of 6%, form thick 2 ~ 3cm bonding course, toe gentle slope district spraying concentration is the cementing material W-OHC solution of 4%, forms thick 1 ~ 2cm bonding course.Wherein, W-OHC is a kind of ecological environment-friendly type modified hydrophilic polyurethane type resin composite curing material, in faint yellow and even brown oil liquid, very easily dissolves or emulsification after meeting water, arbitrary proportion and water can react, and form rapidly good water-retaining property, resilient aqueous gel matrix.These colloid and sandy soil etc. have good adhesive power, and form the bonding course of loose structure, the mechanical properties such as the elasticity of bonding course are high, and have and plant raw function preferably, meet water and no longer dissolve.The function adding material such as compound ultraviolet degradation controlling agent W-US, mechanical property reinforcing agent EVA, PVA can improve the combination property such as weatherability, mechanical property of W-OH, and show through toxicity test and hazardous substances assay, W-OH is nontoxic, there is tight security, be a kind of with low cost, easy construction, growth-promoting material novel against corrosion that carrying capacity of environment is little.
The flexible protective slope structure of the feldspathic sandstone natural slope of the utility model, improve Soil Slope structure, strengthen resistance to overturning, reduce soil erosion, add and plant raw function, vegetation growth provides necessary moisture simultaneously, can while fixing feldspathic sandstone, plant green hand's method with seed gunite etc. to be combined, promote vegetation recovery, effectively improve the effect of water and soil conservation.The flexible edge slope structure of the present invention is coordinated mutually with the landscape environment of surrounding, has the combination properties such as the mechanical property of excellence, UV resistant degradation property, weather-proof, water erosion and mass erosion performance, freeze thawing resistance, water conservation, insulation, fertilizer conservation.
Accompanying drawing explanation
Fig. 1 is catchwater section drawing.
Fig. 2 is water pit plane and section drawing.
Fig. 3 is top, slope construction drawing.
Fig. 4 is abrupt slope district (slope angle >=60 ° complete consolidation zone) protective slope structure drawing.
Fig. 5 is micro-profit pipe work system drawing.
Fig. 6 is medium gradient district (the growth-promoting districts that slope angle is 30 ° ~ 60 °) structure drawing.
Fig. 7 is toe gentle slope district (slope angle≤30 ° growth-promoting district) protective slope structure drawing.
Fig. 8 is the flexible slope protection construction form of fracture of natural slope.
Fig. 9 is that feldspathic sandstone natural slope administers plan view.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is illustrated further.
Embodiment 1: the implementation of the flexible protective slope structure of feldspathic sandstone natural slope
(1) Po Ding district
Po Ding district physical features is mild, and arrange catchwater in apart from domatic 4 ~ 6 meters for charge for remittance around collecting, catchwater adopts trapezoidal cross-section, and side slope ratio is 1: 0.5, ditch bottom width 400cm, ditch top width 900cm; Its structure as shown in Figure 1, catchwater arranges place's water pit every 10m, and described water pit base diameter is 1000cm, top diameter is 1400cm, stores dark 1000cm, and side slope ratio is 1: 0.2, for storing the rainwater of collection, and be that micro-profit pipe supplies water, its form of structure as shown in Figure 2.
In base plate and the Jiao Bi equal sheet layer flexible net of the bottom of trench of catchwater and side slope, water pit, during linked network construction, first the mesh length of side 3 ~ 5cm single-layer flexible net laying is unreeled domatic, then length 50 ~ 60cmU shape reinforcing bar anchor is squeezed into from top to bottom, adjacent two volume flexible net junctions require the overlap of 20cm simultaneously, and fix with anchor, described anchor is indulged horizontal spacing and is controlled at 2m, and local need control at 1m by vertical horizontal spacing at the place of encryption.
After catchwater and water pit have been constructed, afforesting apart from domatic 10m scope Nei Poding district, plant the macrophyte such as drought-enduring sea-buckthorn and Chinese pine, broadcast sowing Wheatgrass, kirschner wheatgrass, buffalograss, creeping bentgrass grass seeds, the ability of top, slope regional soil water conservation can be strengthened on the one hand, can play the effect of filtering rainwater on the other hand, minimizing ground earth pours catchwater and water pit causes alluvial.
At bottom of trench and the side slope even application 8% cementing material W-OHC solution from top to bottom of catchwater, form thick 4 ~ 5cm bonding course; Within the scope of the outer 0.5m of catchwater top curve, earth's surface sprays 8% cementing material W-OHC solution, forms thick 5cm bonding course; Bottom water pit and Jiao Bi even application 10% cementing material W-OHC solution from top to bottom, form thick 4 ~ 5cm bonding course; Spray 10% cementing material W-OHC solution within the scope of water storage kilneye periphery 0.5m, form thick 5cm bonding course, thus form the structure in Po Ding district, as shown in Figure 3.
In the season that rainfall is plentiful, by collecting rainwater as the moisturizing water source of water pit, when rainwater is not enough, and the plant recovery initial stage artificial recharge can be adopted as the resource of water supply of water pit.
(2) abrupt slope district (slope angle >=60 ° complete consolidation zone)
Abrupt slope district whole slope is stablized, and should remove outstanding boulder, local instability's soil layer or adverse slope feldspathic sandstone local.
Linked network is carried out after sloping surface arrangement, unreel the mesh length of side 3 ~ 5cm single-layer flexible net laying domatic, then length 50 ~ 60cmU shape reinforcing bar anchor is squeezed into from top to bottom, adjacent two volume flexible net junctions require the overlap of 20cm simultaneously, and fix with anchor, described anchor is indulged horizontal spacing and is controlled at 2m, and local need control at 1m by vertical horizontal spacing at the place of encryption.
Spray cementing material solution cured top layer feldspathic sandstone in abrupt slope district, form slope table surface composite material cured layer, major function is reduce rainwater to the erosion of feldspathic sandstone, forms topping, reduces soil erosion amount.Consider that the change in concentration of cementing material in solution directly has influence on consolidation effect, therefore adopt concentration to be that 10%W-OHC solution sprays in this region, realize domatic mechanized operation.Concrete spraying method: take water as curing compound, by soluble in water to design concentration for colourless ~ flaxen hydrophily cementing material liquid, after fully stirring, two liquid spraying systems researched and developed are used evenly to spray, the fountain height of every square controls at about 2.0 ~ 3.0L, to ensure the thickness 2 ~ 3cm permeated, ensures consolidation effect, this district's ecological slope protection structure drawing, is shown in Fig. 4.
(3) medium gradient district (, there is micro-profit in the growth-promoting district that slope angle is 30 ° ~ 60 °)
The amount of precipitation annual in Stands in Arsenic Sandstone Area is little, the easy erosion feldspathic sandstone of rainwater on domatic, cause serious soil erosion, can not infiltrate fully in arsenic sandstone, and certain thickness bonding course can be formed on surface after cementing material on spraying on feldspathic sandstone, this is while minimizing feldspathic sandstone runs off, and the infiltration capacity of moisture greatly reduces.Therefore, in order to improve the survival rate of growth-promoting district plant, adopt micro-profit irrigation practice, lay micro-profit pipe in the loose region that weathering is comparatively serious, micro-profit pipe paving adopts water pit to supply water, and the Lay interval of micro-profit pipe is 60cm, the depth of burying is 5 ~ 10cm, and inner pipe water pressure is about 2.5kPa.Micro-profit pipe is connected with flexible duct between the two with water pit.The feed pipe of micro-profit pipe arranges reducing valve, each reducing valve controls 3 ~ 4 micro-profit pipes, spacing between adjacent micro-profit pipe is 0.6m, water supply control range is each 0.3m up and down, micro-profit pipe tail end snap joint that each reducing valve controls connects, form shunt circuit, prevent micro-profit pipe from causing whole cannot use because of joint failure, micro-profit pipe lays form as shown in Figure 5.
Adopt grass in growth-promoting district, fill with the stereoscopic configurations pattern of the plantation that combines, and sow water-loss reducer, described shrub selects drought-enduring, that survival ability is stronger sea-buckthorn, in the centre position of micro-profit pipe every 0.8 meter of plantation, 2 sea-buckthorns, the depth of burying of sea-buckthorn is 15 ~ 20cm, choose Wheatgrass, kirschner wheatgrass, buffalograss, creeping bentgrass four kinds of grass seeds sow, total application rate is 20g/m
2.
Spraying concentration is the cementing material W-OHC solution of 6%, forms thick 2 ~ 3cm bonding course, medium gradient growth-promoting plot structure drawing, as shown in Figure 6.
(4) toe gentle slope district (the growth-promoting district of slope angle≤30 °, without micro-profit)
Spraying concentration is the cementing material W-OHC solution of 4%, forms thick 1 ~ 2cm bonding course.
The feasibility considered on domatic construction and dig pit, adopt grass in growth-promoting district, fill with the stereoscopic configurations pattern of the plantation that combines, and sow water-loss reducer, shrub selects drought-enduring, that survival ability is stronger sea-buckthorn, in the centre position of micro-profit pipe every 0.8 meter of plantation, 2 sea-buckthorns, the depth of burying of sea-buckthorn is approximately 15 ~ 20cm.According to the climatic characteristic of locality, choose the eciophyte that some growing powers are strong, drought-enduring, adaptive faculty is strong to plant, through considering, choose Wheatgrass in growth-promoting district, kirschner wheatgrass, buffalograss, creeping bentgrass four kinds of grass seeds sow, total application rate is about 20g/m
2, and carried out simple collocation according to its growth characteristic, sowed effect in order to what improve seed simultaneously, accelerate to germinate, improve survival rate, before sowing, immersion treatment has been carried out to lightweight seed.Grass seeds has carried out top layer after sowing and has covered feldspathic sandstone, waters simultaneously and spreads the part water yield, to ensure rooting of seed.Toe gentle slope district protective slope structure drawing, as shown in Figure 7, side slope flexible slope protection construction section effect, as shown in Figure 8, slope treatment plan view, as shown in Figure 9.
(5) toe district
Toe district plantation willow, Chinese pine, caragana microphylla, broadcast sowing Wheatgrass, kirschner wheatgrass, total application rate 20g/m
2.
Claims (6)
1. the flexible protective slope structure of a feldspathic sandstone natural slope, it is characterized in that, comprise micro-profit system realm, single-layer flexible web area, greening vegetation region and cementing material bonding course region, wherein, described micro-profit system realm by being laid on Po Ding district catchwater, micro-profit pipe in water pit and medium gradient district forms; Described single-layer flexible web area by bottom catchwater, furrow bank, bottom water pit, Jiao Bi, abrupt slope district, medium gradient district respectively linked network is formed; Described greening vegetation region is by apart from domatic 10m scope Nei Poding district, medium gradient district, toe gentle slope district, toe district broadcasts sowing well developed root system, growing power is strong, drought-enduring, adaptive faculty is strong herbaceous plant respectively and plants drought-enduring, that survival ability is stronger arbor and/or shrub is formed; Described cementing material bonding course region is by within the scope of the outer 0.5m of the bottom of trench of catchwater, furrow bank and catchwater top curve, and bottom water pit, within the scope of Jiao Bi and water storage kilneye periphery 0.5m, abrupt slope district, medium gradient district, toe gentle slope district spraying cementing material is formed.
2. the flexible protective slope structure of feldspathic sandstone natural slope according to claim 1, is characterized in that, described catchwater is arranged in domatic 4 ~ 6 meters of the offset in top, slope, and described water pit is arranged on catchwater, and water pit is separated by between 8 ~ 12m between two; Described micro-profit pipe depth of burying is 5 ~ 10cm, inner pipe water pressure is 2.4 ~ 2.6kPa, micro-profit pipe is connected with flexible duct between the two with water pit, the feed pipe of micro-profit pipe arranges reducing valve, each reducing valve controls 3 ~ 4 micro-profits and manages, and the spacing between adjacent micro-profit pipe is between 0.5 ~ 0.7m, and water supply control range is each 0.3m up and down, micro-profit pipe tail end snap joint that each reducing valve controls connects, and forms shunt circuit.
3. the flexible protective slope structure of feldspathic sandstone natural slope according to claim 2, is characterized in that, described catchwater adopts trapezoidal cross-section, and side slope ratio is 1: 0.5, ditch bottom width 400cm, ditch top width 900cm; Described water pit base diameter is 1000cm, and top diameter is 1400cm, stores dark 1000cm, and side slope ratio is 1: 0.2.
4. the flexible protective slope structure of feldspathic sandstone natural slope according to claim 1, it is characterized in that, described single-layer flexible web area is fixed by length 3 ~ 5cm anchor from top to bottom, adjacent two volume flexible net junctions require the overlap of 20 ~ 30cm simultaneously, and fix with anchor, described anchor is indulged horizontal spacing and is controlled at 1.5 ~ 2.5m, and local need control at 1m by vertical horizontal spacing at the place of encryption.
5. the flexible protective slope structure of feldspathic sandstone natural slope according to claim 1, it is characterized in that, described greening vegetation region is Po Ding district plantation sea-buckthorn and Chinese pine, broadcast sowing Wheatgrass, kirschner wheatgrass, buffalograss, creeping bentgrass grass seeds, medium gradient district, toe gentle slope district all adopts grass, fill with the stereoscopic configurations pattern of the plantation that combines, and sow water-loss reducer, described shrub selects sea-buckthorn, in the centre position of micro-profit pipe every 0.8 meter of plantation, 2 sea-buckthorns, the depth of burying of sea-buckthorn is 15 ~ 20cm, sow Wheatgrass, kirschner wheatgrass, buffalograss, creeping bentgrass four kinds of grass seeds, toe district plantation willow, Chinese pine, caragana microphylla, shrub, broadcast sowing Wheatgrass, kirschner wheatgrass, total application rate 20g/m
2.
6. the flexible protective slope structure of feldspathic sandstone natural slope according to claim 1, is characterized in that, the bottom of trench of the catchwater in Po Ding district and side slope be even application 8% cementing material W-OHC solution from top to bottom, forms thick 4 ~ 5cm bonding course; Within the scope of the outer 0.5m of catchwater top curve, earth's surface sprays 8% cementing material W-OHC solution, forms thick 5cm bonding course; Bottom the water pit in Po Ding district and Jiao Bi even application 10% cementing material W-OHC solution from top to bottom, form thick 4 ~ 5cm bonding course; Spray 10% cementing material W-OHC solution within the scope of water storage kilneye periphery 0.5m, form thick 5cm bonding course; Abrupt slope district spraying concentration is the cementing material W-OHC solution of 10%, the fountain height of every square controls at 2.0 ~ 3.0L, ensure the thickness 2 ~ 3cm of infiltration, slope angle medium gradient district spraying concentration is the cementing material W-OHC solution of 6%, form thick 2 ~ 3cm bonding course, toe gentle slope district spraying concentration is the cementing material W-OHC solution of 4%, forms thick 1 ~ 2cm bonding course.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105230323A (en) * | 2015-11-11 | 2016-01-13 | 天津城建大学 | Corrosion-resistance and growth-promotion binary three-dimensional configuration mode suitable for small pisha sandstone area watershed |
| CN105684778A (en) * | 2016-01-27 | 2016-06-22 | 宏大国源（芜湖）资源环境治理有限公司 | High-and-steep-slope vegetation recovery system and method thereof |
| CN110558170A (en) * | 2019-10-19 | 2019-12-13 | 福建农林大学 | Method for reducing riverway sediment coastal transport in yellow river midstream sandstone area |
-
2015
- 2015-04-21 CN CN201520244657.2U patent/CN204676571U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105230323A (en) * | 2015-11-11 | 2016-01-13 | 天津城建大学 | Corrosion-resistance and growth-promotion binary three-dimensional configuration mode suitable for small pisha sandstone area watershed |
| CN105684778A (en) * | 2016-01-27 | 2016-06-22 | 宏大国源（芜湖）资源环境治理有限公司 | High-and-steep-slope vegetation recovery system and method thereof |
| CN110558170A (en) * | 2019-10-19 | 2019-12-13 | 福建农林大学 | Method for reducing riverway sediment coastal transport in yellow river midstream sandstone area |
| CN110558170B (en) * | 2019-10-19 | 2021-06-01 | 福建农林大学 | Method for reducing riverway sediment coastal transport in yellow river midstream sandstone area |
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