CN110424420A - Coarse granule composite soil high gradient slope control method - Google Patents
Coarse granule composite soil high gradient slope control method Download PDFInfo
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- CN110424420A CN110424420A CN201910723450.6A CN201910723450A CN110424420A CN 110424420 A CN110424420 A CN 110424420A CN 201910723450 A CN201910723450 A CN 201910723450A CN 110424420 A CN110424420 A CN 110424420A
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- Prior art keywords
- slope
- high gradient
- coarse granule
- woven bag
- soil
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/08—Restraining of underground water by employing open ditches arranged below the level of the water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
Abstract
The invention discloses coarse granule composite soil high gradient slope control methods, and protective net to be equably laid on above entire side slope in advance when preventing and treating high gradient slope, to prevent coarse granule composite soil side slope slump；Secondly the organic soil for being suitble to the seed of local growth will be mixed with, it puts into degradable woven bag, and by woven bag according to ladder-like, it is deposited in side slope in picturesque disorderly, it is every to build certain height, start the embedded drainpipe Jing Guo specially treated in advance, and construct rhone in slope surface, anti- harness the river washes away slope surface, leads to soil erosion.Finally through maintenance after a period of time, seed is grown out of woven bag, and woven bag is degraded, and one of natural environmentally protective protecting wall is formed, to reach the protection to high gradient slope and reinforcement effect.
Description
Technical field
The present invention relates to coarse granule composite soil high gradient slope control method, belong to Geotechnical Engineering field.
Background technique
It is well known that Southeast Tibet area belongs to high mountain gorge topography and geomorphology, high gradient slope is numerous in region, and is mostly by thick
Particle composite soil composition.In addition rainfall is abundant in the region, rich groundwater, rift structure and geological process are strong in region,
Therefore the geological disasters such as landslide, mud-rock flow, avalanche are easily formed to occur.The big partial sizes such as coarse granule composite soil medium stone, sand gravel
Content is more, and content is greater than 50%, and the content of the fine grains such as powder, clay is less, only account for gross sample less than 6%.Due to
The soil body is loose, and one meets rainfall, and rainwater easily penetrates into the soil body, fine grained is taken away, and forms many holes, viscous between the soil body in addition
Poly- power is relatively small, to form the natural calamities such as falling rocks and landslide under external factor effect.For this purpose, invention coarse granule is mixed
The Prevention Technique for closing native high gradient slope will recognize us the essence of Southeast Tibet high gradient slope unstability, improve coarse granule composite soil
The reinforcement measure of high gradient slope has far-reaching and real meaning.
For previous civil engineers merely from amechanical angle, the stable problem of quantitative analysis side slope often takes stone
Material or concrete guard wall and mask, or using lattice protection, bolt-spary supports.The serious water and soil of side slope bring can be overcome by doing so
The disasters such as loss and landslide, mud-rock flow, but also bring serious environmental problem, such as visual pollution, disruption of ecological balance etc..
Summary of the invention
The present invention provides a kind of coarse granule composite soil high gradient slope control method, by pre-buried prior inside high gradient slope
By the drainpipe of specially treated, then protective net is uniformly laid on above entire side slope.It will finally be mixed with and be suitble to locality
The organic soil of the seed of growth is put into degradable woven bag, and is deposited in woven bag is in picturesque disorder in side slope, and
Rhone is constructed, through maintenance after a period of time, seed is grown out of woven bag, and woven bag is degraded, and utilizes root system of plant
Fixation, formed one of natural protecting wall, to have the function that high-steep slope protection and reinforcing.
Specific technical solution:
Coarse granule composite soil high gradient slope control method, includes the following steps:
Step 1: the progress of entire side slope is simple artificial smooth, as far as possible by bark, tree root, rubbish, the sundries in slope surface
Equal removings are clean, accomplish that slope surface is clean and tidy.The turquoise of slope surface, the unstable soil body will be fixed or be removed；Acute angle object will be worn into blunt
Angle is laid with exempt from customs examination protective net, the subsequent constructions such as pre-buried of drainpipe increase difficulty；
Step 2: top of the slope will set intercepting ditch in advance, and select suitable drainage point in high gradient slope slope surface, when us
When the pre-buried prior drainpipe by specially treated, should successively it be carried out according to sequence side by side pre-buried；
Step 3: successively arranging from side slope side, carries out the tiling operation of side slope protective screen.U is used between protective net or so
Sprig carries out being connected to an entirety, and specific position should be also fixed with rivet and the mode of welding.It is left up and down
It is right to deform big, it to adjust in time well-balanced；
Step 4: will finally be mixed with the organic soil for being suitble to the seed of local growth, put into degradable woven bag, and
By woven bag in the way of ladder-like (pyramid), in picturesque disorder is deposited in side slope, and every build arrives certain altitude, is started
The embedded drainpipe Jing Guo specially treated in advance, and rhone is constructed in slope surface.Mounted woven bag protecting wall is carried out
Along slope protection vertical equity degree and plane levelness inspection, it is ensured that the construction quality of slope entirety.Through maintenance after a period of time, seed
It is grown out of woven bag, woven bag is effectively degraded, and one of natural protecting wall is formed；
Step 5: infiltration in coarse granule composite soil side slope in order to prevent washes away side slope and slope foot, leads to slope instability.Cause
Concrete drain tank is arranged on the woven bag surface piled up in this, and is also provided with a drainage in the position apart from 0.5 meter of slope foot
Gutter.The gutter drained under intercepting ditch and slope foot above slope, uses concreting.
The drainage hole should select water leaking-in stream concentrated part, be evenly arranged as far as possible with arranged side by side or staggered manner.
In step 2, the suitable drainage point of the selection should select water leaking-in stream concentrated part, as far as possible with side by side or
Staggered manner is evenly arranged.
In step 3, steel mesh extends in 200cm embedment intercepting ditch or soil in slope surface, and then tiling is set from top to bottom, adjacent
20~25cm is overlapped between net and net, net is close to slope surface, longitudinal to be fixed every 150cm with staple.
Such as dry in the step 4, using non-textile mulch and water seasoning pours daily in the vegetation development phase
Twice, curing period is about 20d to water, and vegetation growth molding, drilling out straw bag can be completed.
The invention patent is exactly individually or with other structures cooperation side slope to be prevented using biological (mainly plant)
A kind of complex art of shield and revegetation.Comprising Afforestation Landscape, fixing of soil and conservation of water, prevent coarse granule composite soil high gradient slope sliding
The bioenvironmental basic content such as slope, landslide.
The technical effect that the present invention has: (1) after vegetation is formed, the root system of plant is woven to be formed with galvanized steel wire netting
A protective layer, root system can be directly entered inside coarse-grained soil side slope, form a powerful root system concretion state.Side slope slope
Face forms permanent protection, avoids rainwater from washing away caused by slope surface, the stabilization of effective protection side slope.When root system of plant penetrates slightly
When particle composite soil, plant, galvanized steel wire netting and coarse granule composite soil three form a firm compound entirety, play solid
The effect of native water storage, achievees the purpose that water and soil conservation.(2) play the role of geo-grid reinforcement in side slope surface layer, to effectively prevent
The sliding of surface layer coarse granule composite soil.(3) once being formed, woven bag can quickly form protection once degrading to vegetation.(4) work as slope
When face is relatively broken, often there are many unstability factors in this kind of side slope, and there is rubble landing in when slope surface, at this point, relying on certain merely
The single protection of kind cannot restore its stability or recovery effects are poor.Therefore by galvanized steel wire netting (or geonet) and vegetation
R. concomitans.On the one hand, which is utilized the function of the fixing of soil and conservation of water of vegetation, is topsoil geo-grid reinforcement, effectively prevent
The sliding of surface soil；On the other hand, the project post-evaluations skill such as and the good mechanical property of steel wire is utilized, while anchor pole is added
Art increases the globality of unstable slope surface, creates advantage for greening.
Detailed description of the invention
Fig. 1 is the effect picture after the completion of the construction of coarse granule composite soil high gradient slope；
Fig. 2 is the schematic diagram of coarse granule composite soil high gradient slope construction；
Fig. 3 is the distribution schematic diagram arranged side by side of coarse granule composite soil high gradient slope drainpipe.
Fig. 4 is the stagger arrangement distribution schematic diagram of coarse granule composite soil high gradient slope drainpipe.
Specific embodiment
It is described in conjunction with the embodiments the specific technical solution of the present invention.
As shown in Figure 1, protective net is equably laid in entire side slope in advance when preventing and treating high gradient slope
Face, to prevent coarse granule composite soil side slope slump；Secondly it will be mixed with the organic soil for being suitble to the seed of local growth, threading can drop
In the woven bag of solution, and woven bag is deposited in side slope in picturesque disorderly according to ladder-like, it is every to build certain height, it opens
Begin the embedded drainpipe Jing Guo specially treated in advance, and constructs rhone in slope surface, and anti-harness the river washes away slope surface, leads to water
Soil flow is lost.Finally through maintenance after a period of time, seed is grown out of woven bag, and woven bag is degraded, and one of formation natural
Environmentally protective protecting wall, to reach the protection to high gradient slope and reinforcement effect.
It is described further now in conjunction with construction method.
In construction, by complete and accurate inspection of the scene of a crime data, reasonable plan and should arrange, using defined
Material, the design for meeting specification, reasonable construction procedure.There must be construction Supervision to track construction quality in work progress.Construction
Before should be contacted with local relevant department to ensure that this work does not damage environment.High-steep slope protection construction needs foundation
Design drawing and in-site measurement data accurately determine plan-position and the slope surface gradient of Slope.
As shown in Figure 1, the progress of entire high gradient slope is simple artificial smooth, as far as possible by bark, tree root, the rubbish in slope surface
The removings such as rubbish, sundries are clean, accomplish that slope surface is clean and tidy.The turquoise of slope surface, the unstable soil body will be fixed or be removed；Acute angle object is wanted
Wear into that obtuse angle is laid with exempt from customs examination protective net, the subsequent constructions such as pre-buried of drainpipe increase difficulty.
Next, top of the slope will set the intercepting ditch of top of the slope in advance, and suitable drainpipe is selected in high gradient slope slope surface
Layout points can be used side by side or staggered manner be arranged.The suitable drainpipe layout points of the selection should select to ooze out
Water flow concentrated part is evenly arranged with arranged side by side or staggered manner, as shown in Figure 3 and Figure 4 as far as possible.Drainpipe needs advanced processing,
Three strainers are respectively set at the end, middle part, tail portion of drainpipe, prevent water flow from taking the fine grained in side slope out of.
It is successively arranged from side slope side, carries out the tiling operation of the zinc-plated protective net of side slope.U is used between protective net or so
Sprig carries out being connected to an entirety, and specific position should be also fixed with rivet and the mode of welding.It is left up and down
It is right to deform big, it to adjust in time well-balanced.Protective net extends in 100cm embedment intercepting ditch or soil in slope surface, then from top to bottom
Tiling is set, and 15~20cm is overlapped between adjacent net and net, net is close to slope surface, longitudinal to be fixed every 100cm with staple.
To finally it be mixed with the organic soil for being suitble to the seed of local growth, put into degradable woven bag, and will braiding
Bag is in picturesque disorder to be deposited in side slope, carries out mounted woven bag protecting wall along slope protection vertical equity degree and planar horizontal
Degree checks, it is ensured that the construction quality of slope entirety.Every build arrives certain altitude, starts the embedded draining Jing Guo specially treated in advance
Pipe, and rhone is constructed in slope surface.Drainpipe pre-buried should meet state compulsory standard, and guarantee drainpipe and slope surface angle
Degree is 5 °.The gutter of a drainage is also provided in the position apart from 0.5 meter of slope foot.
Through maintenance after a period of time, seed is grown out of woven bag, and woven bag is effectively degraded, and one of formation natural
Protecting wall.As dry, should water daily twice using non-textile mulch and water seasoning, in the vegetation development phase, maintenance
Phase is about 20d, and vegetation growth molding, drilling out straw bag can be completed.
The present invention has the advantage that compared with prior art
1, drainage system of the invention has played great effect, and the ponding in side slope can not only be discharged in time, and
The fine grained in slope is taken out of when also avoiding draining, in order to avoid form piping or soil erosion.
2, the configuration of the present invention is simple, construction technology is simple, accelerates construction speed, and material source is wide, reduces work
Cheng Chengben improves economic benefit.
3, after present invention processing, slope stability is good, and reliability is high.On the one hand, which is utilized the solid soil of vegetation
Water retaining function is topsoil geo-grid reinforcement, effectively prevent the sliding of surface soil；On the other hand, and that steel wire is utilized is good
Mechanical property, while the project post-evaluations technology such as anchor pole is added increases the globality of unstable slope surface, created for greening
Sharp condition.
Claims (6)
1. coarse granule composite soil high gradient slope control method, which comprises the steps of:
Step 1: the progress of entire side slope is simple artificial smooth, slope surface is cleaned, the turquoise of slope surface, the unstable soil body will be consolidated
Fixed or removing；Acute angle object will wear into obtuse angle；
Step 2: intercepting ditch is arranged in top of the slope in advance, and at the suitable drainage point of high gradient slope slope surface selection, pre-buried drainpipe, answers
It is successively carried out according to sequence side by side pre-buried；
Step 3: successively arranging from side slope side, carries out the tiling operation of side slope protective screen；U-shaped nail is used between protective net or so
It carries out being connected to an entirety, specific position is also fixed with rivet and the mode of welding；Protective net is up and down
Big place is deformed, to be adjusted in time well-balanced；
Step 4: will be mixed with the organic soil for being suitble to local growing plants seed, put into degradable woven bag, and will compile
Bag is knitted according to stair-stepping mode, in picturesque disorder is deposited in side slope, and every build arrives certain altitude, embedded drainpipe, and
Slope surface constructs rhone；Mounted woven bag protecting wall is carried out along slope protection vertical equity degree and plane levelness inspection,
Ensure the construction quality of slope entirety；
Step 5: concrete drain tank is set on the woven bag surface piled up, and is arranged one in the position apart from 0.5 meter of slope foot
The gutter of drainage.
2. coarse granule composite soil high gradient slope control method according to claim 1, it is characterised in that: in step 2, institute
The suitable drainage point of the selection stated should select water seepage stream concentrated part, be evenly arranged as far as possible with arranged side by side or staggered manner.
3. coarse granule composite soil high gradient slope control method according to claim 1, it is characterised in that: in step 2, institute
The drainpipe stated passes through advanced processing, and three strainers are respectively set at the end, middle part, tail portion of drainpipe.
4. coarse granule composite soil high gradient slope control method according to claim 1, it is characterised in that: in step 3, protection
Net slope surface extend 200cm embedment intercepting ditch or soil in, then from top to bottom tiling set, adjacent net and net between overlap joint 20~
25cm, protective net is close to slope surface, longitudinal to be fixed every 150cm with staple.
5. coarse granule composite soil high gradient slope control method according to claim 1, it is characterised in that: in step 4, such as
Dry, using non-textile mulch and water seasoning, in the vegetation development phase, twice, curing period is about 20d for watering daily, is planted
By growth shaping, drilling out straw bag be can be completed.
6. coarse granule composite soil high gradient slope control method according to claim 1, it is characterised in that: in step 5, slope
The gutter drained under intercepting ditch and slope foot above, uses concreting.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851533A (en) * | 2020-07-24 | 2020-10-30 | 四川省交通勘察设计研究院有限公司 | Construction method for blocking edge of bagged sandstone |
| CN112281909A (en) * | 2020-10-09 | 2021-01-29 | 杭州华耕土地规划设计咨询有限公司 | Ecological retaining wall of last ditch lower base retaining block suitable for massif slope |
| CN112343065A (en) * | 2020-09-30 | 2021-02-09 | 中冶成都勘察研究总院有限公司 | Maintenance method for red bed mudstone block filler high-fill side slope |
| CN114642134A (en) * | 2022-02-15 | 2022-06-21 | 东南大学 | Sustainable flexible slope protection method and system for planting and greening high and steep side slope of arsenopyrite |
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| CN108374423A (en) * | 2016-11-09 | 2018-08-07 | 中国瑞林工程技术有限公司 | Slope ecological recovery system and its implementation |
| CN109479538A (en) * | 2018-11-04 | 2019-03-19 | 浙江杭博生态环境建设有限公司 | A kind of massif ecological management plant seeding method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851533A (en) * | 2020-07-24 | 2020-10-30 | 四川省交通勘察设计研究院有限公司 | Construction method for blocking edge of bagged sandstone |
| CN112343065A (en) * | 2020-09-30 | 2021-02-09 | 中冶成都勘察研究总院有限公司 | Maintenance method for red bed mudstone block filler high-fill side slope |
| CN112343065B (en) * | 2020-09-30 | 2021-12-28 | 中冶成都勘察研究总院有限公司 | Maintenance method for red bed mudstone block filler high-fill side slope |
| CN112281909A (en) * | 2020-10-09 | 2021-01-29 | 杭州华耕土地规划设计咨询有限公司 | Ecological retaining wall of last ditch lower base retaining block suitable for massif slope |
| CN114642134A (en) * | 2022-02-15 | 2022-06-21 | 东南大学 | Sustainable flexible slope protection method and system for planting and greening high and steep side slope of arsenopyrite |
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Application publication date: 20191108 |