CN106703053A - Construction method for reinforced soil drainage composite revetment structure - Google Patents
Construction method for reinforced soil drainage composite revetment structure Download PDFInfo
- Publication number
- CN106703053A CN106703053A CN201611177304.0A CN201611177304A CN106703053A CN 106703053 A CN106703053 A CN 106703053A CN 201611177304 A CN201611177304 A CN 201611177304A CN 106703053 A CN106703053 A CN 106703053A
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- China
- Prior art keywords
- slope
- construction method
- protection
- layer
- reinforced earth
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Classifications
-
- 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
-
- 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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
Abstract
The invention discloses a construction method for a reinforced soil drainage composite revetment structure. The method includes the following steps that first, a slope body to be protected is excavated; second, the revetment structure is laid on the surface of the excavated slope body and comprises a gravel drainage layer, a reinforced soil layer and a slope protection layer, in particular, the gravel drainage layer is laid on the surface of the slope body, the reinforced soil layer is arranged outside the gravel drainage layer, then a slope toe wall is adopted for reinforcing the bottom of the slope body, and the slope protection layer is laid outside the reinforced soil layer ultimately; and third, after the slope protection structure is laid, green plants are planted on the slope protection layer. Compared with the prior art, the construction method has the advantages of being simple in structure, convenient to construct, economical in cost, excellent in protecting effect and the like.
Description
Technical field
The invention belongs to Geotechnical Engineering field, and in particular to a kind of construction party of the compound bank protection of reinforced earth draining
Method.
Background technology
The swelled grounds such as red clay have the characteristic of water swelling, dehydration shrinkage, and swelled ground slopes easily form slight crack, and split
The formation of trace is again the major influence factors of slope instability.Swelled ground slopes run into the weather such as heavy rain and easily trigger heavy cut section
Geological disaster.Dilatancy slopes are because the reason such as weather can often occur the disasters such as avalanche, landslide, once occur, to locals
The influence of people's livelihood work, architectural engineering etc. is very big.So protective treatment is carried out to dilatancy slopes, to avoid slopes
What the destruction such as unstability was highly desirable to when occurring.And existing safeguard structure, usual complex structure, it is necessary to input etc. into
This is also relatively large, and the protection cycle is shorter.Therefore, a kind of simple structure is found, economical and effective protects the protection knot that the cycle is long
Structure is necessary.
The invention discloses a kind of construction method of the compound protective slope structure of reinforced earth draining, it uses a kind of classification side slope
Protection and Technique of soft support of full carry out supporting file to unstability side slope, and deform for expansion red clay water-swellable, dehydration shrinkage
Characteristics design drainage channel, in time row dredged underground water in massif and it is domatic on surface water, and reinforcement soil layer also fills
When the cushion between slopes and protective slope structure, stress of the swelled ground to slope protection is reduced, it is ensured that cut slope is steady
Fixed, the deep vertical shaft protective action to expansion red clay area is notable.
The content of the invention
For the shortcoming or deficiency of above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of reinforced earth row
The construction method of water combined protective slope structure.
In order to solve the above technical problems, the present invention has following composition：
A kind of construction method of the compound bank protection of reinforced earth draining, step is as follows：Step one：The slopes for treating protection are opened
Dig；Step 2：Slope surface laying protective slope structure after excavation, the protective slope structure includes rubble drainage blanket, reinforcement soil layer
And slope protection layer, specifically, the rubble drainage blanket is laid on slope surface, reinforced earth is set outside the rubble drainage blanket
Layer, is then reinforced using toe wall to slopes bottom, and slope protection layer is finally laid on the outside of the reinforcement soil layer；
Step 3：After the completion of above-mentioned protective slope structure laying, green plants is planted on slope protection layer.
In the step one, the Slope excavation of protection into the classification side slope of at least two-stage is treated, the classification side slope is outer right
Protective slope structure should be laid；Platform is set between the classification side slope, and the width of the platform is at least 2m.
Platform intercepting ditch is set on the platform.
In the step one, slope surface is excavated into stepped structure, the height of the step-like structure is 0.5-
1.5m, and its depth-width ratio is not less than 1:1.5.
In the step one, the ratio of slope of the slopes after the excavation is not more than 1:1.5.
In the step 2, the top laying of the protective slope structure grouts chip architecture, described to grout chip architecture and slopes
Intercepting ditch is provided between surface.
In the step 2, the reinforcement soil layer use volume ratio for 30% native horsestone material, and reinforcement soil layer laying
Width is not less than 2.5m.
In the step 2, the slope protection layer is provided with spilled water hole and drainpipe, and the spilled water hole is arranged on domatic
The surface of overcoat, the drainpipe is through spilled water hole and is inserted into reinforcement soil layer.
In the step 3, gutter is set outside the toe wall.
Compared with prior art, the invention has the advantages that：
1）The present invention uses Technique of soft support of full, and the Incoordinate deformation between swelled ground slopes and protective slope structure can be avoided to make bank protection
Structure is destroyed, and the service life of protective slope structure is extended to a certain extent, and it is stronger that the technology causes that protective slope structure has
Adaptive deformation ability and resistance to capsizing, and simple structure of the present invention, cost economy, protection effect are good；
2）The present invention is set and is carried out using multistage protective slope structure, and the berm width widened between multistage bank protection, multistage bank protection
Segmentation protection, and direct effect power of higher level's bank protection to subordinate's bank protection is reduced, and enhance the protection effect of the protective slope structure
Really；
3）Using the layer three-layer protection measure of rubble drainage blanket, reinforcement soil layer and slope protection, cost economic, protection effect show
Write；
4）Reinforcement soil layer in the present invention uses volume ratio to be compacted for 30% soil plus stone material, and compacting rate is at least 90%,
Do not only have bracing effect, also acts as the cushion between slopes and protective slope structure；Soil after being wrapped up through GSZ adds stone material
The bidirectional stretch power of material is at least 50KN/m, further enhancing tension, shearing strength and the resistance to overturning of slopes；
5）Rubble drainage blanket in the present invention, underground water, surface water and rainwater inside and outside the effective white-out side slope of energy, so as to avoid
The harm such as landslide that swell deformation of expansive soil encountered with water is triggered；
6）Spilled water hole and drainpipe on slope protection layer are arranged in the present invention, can timely and effectively to the water in reinforcement soil layer
Stream is derived；
7）The present invention also using the ratio of slope for slowing down slopes and reinforces the measures such as toe, further enhances the protection effect of protective slope structure
Really.
Brief description of the drawings
Fig. 1：The compound protective slope structure schematic diagram of reinforced earth draining in the present invention.
Specific embodiment
The technique effect of design of the invention, concrete structure and generation is described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
As shown in figure 1, the construction method of the compound bank protection of reinforced earth draining of the present invention, Specific construction step is as follows：
Step one：The slopes for treating protection are excavated.The Slope excavation of protection into the classification side slope of at least one-level is treated, it is described
Correspondence laying protective slope structure 10 outside classification side slope；Platform 20 is set between the classification side slope, and the width of the platform 20 is at least
It is 2m, platform intercepting ditch 21 is set on the platform 20.
Using multistage protective slope structure and the berm width widened between multistage bank protection, set multistage bank protection is carried out the present invention
Segmentation protection, reduces direct effect power of higher level's bank protection to subordinate's bank protection, and enhance the integral protection effect of the protective slope structure
Really.The construction length of the protective slope structure 10 is 28-32m, and the construction length is preferably 30m.The construction length is by site operation
Summary of experience draws, can suitably be adjusted according to actual conditions.
As a further improvement, above-mentioned slope surface is excavated into stepped structure, the height of the step-like structure
It is 0.5-1.5m, and its depth-width ratio is not less than 1:The ratio of slope of the slopes behind 1.5, and excavation is not more than 1:1.5.The step-like knot
Structure sets the interaction force between increase slopes and protective slope structure, can reduce mutually to slide producing.Less ratio of slope is set
The interaction force between slopes and protective slope structure is enhanced to a certain extent.
Step 2：Protective slope structure 10 is laid to the slope surface after above-mentioned excavation, during specific implementation, the side slope is per 28-
32m is a construction section（Preferably 30m）, construction in layer from bottom to top.Up constructed successively after the completion of bottom laying, directly
It is fully completed to the outer slope protection construction of slopes.
The protective slope structure 10 includes rubble drainage blanket 11, reinforcement soil layer 12 and slope protection layer 13, specifically, described
Rubble drainage blanket 11 is laid on slope surface, the rubble drainage blanket 11 and slopes bottom UNICOM, can by rubble drainage blanket 11
Underground water in the white-out soil body.The rubble drainage blanket 11 is outer to set reinforced earth layer 12, then using toe wall 40 to slopes bottom
Reinforced, the toe wall construction 40 mainly rises strengthens fixation, and the toe wall 40 is provided with gutter 50.Finally by slope
Face overcoat 13 is laid on the outside of the reinforcement soil layer 12.Using rubble drainage blanket, reinforcement soil layer and slope protection layer three
Layer safeguard procedures, cost economic, protection effect are notable.
In the step 2, the top laying of the protective slope structure 10 grouts chip architecture 14, described to grout chip architecture 14
Intercepting ditch 30 is provided with the junction of slope surface.The chip architecture 14 that grouts mainly plays reinforcement fixation, the intercepting ditch
30 rainwater that can temporarily store the weather such as heavy rain, the rainwater in the intercepting ditch 30 etc. are constantly arranged by rubble drainage blanket 11
Go out.
In the step 2, the reinforcement soil layer 12 uses volume ratio to be compacted for 30% native horsestone material, compacting rate
At least 90%, and reinforced using GSZ, the laying width of the reinforcement soil layer 12 is not less than 2.5m.Through geotechnological lattice
The two-way tension of the reinforcement soil layer 12 after grid reinforcing is at least 50KN/m.The reinforcement soil layer 12 does not only have bracing effect, also fills
When the cushion between side slope and protective slope structure, tension, shearing strength and the resistance to overturning of slopes are further enhancing.
In the step 2, the slope protection layer 13 is provided with spilled water hole 132 and drainpipe 133, the spilled water hole 132
The surface of slope protection layer 13 is arranged on, the drainpipe 133 is through spilled water hole 132 and is inserted into reinforcement soil layer 12.It is described
Spilled water hole 132 and drainpipe 133 can be derived timely and effectively to the current in reinforcement soil layer 12.The He of the spilled water hole 132
The setting quantity and set location of drainpipe 133, can according to actual needs carry out appropriate increasing or decreasing.In the present embodiment,
Drainpipe 133 uses the PVC drain pipe of a diameter of 80cm, length to be preferably 1m, and adjacent drainpipe 133 sets height spacing and is
2m。
Step 3：After the completion of above-mentioned protective slope structure 10 is laid, green plants 131 is planted on slope protection layer 13.
Green plants 131 is planted on the slope protection layer 13, the slope protection layer 3 can prevent a large amount of rainwater from penetrating into side slope.
The construction method of the compound protective slope structure of reinforced earth draining of the present invention, it is adaptable to the dilatancy slopes such as red clay it is anti-
Shield, is also also applied for the protection of non-expansibility slopes simultaneously.Easy construction of the present invention, cost economic, protection effect is good, with wide
Wealthy market application foreground.
According to the teaching of the present embodiment, those skilled in the art are capable of achieving in other scope of the present invention completely
Technical scheme.
Claims (9)
1. a kind of construction method of the compound bank protection of reinforced earth draining, it is characterised in that step is as follows：
Step one：The slopes for treating protection are excavated；
Step 2：Slope surface laying protective slope structure after excavation（10）, the protective slope structure（10）Including rubble drainage blanket
（11）, reinforcement soil layer（12）And slope protection layer（13）, specifically, the rubble drainage blanket（11）It is laid on slope surface,
The rubble drainage blanket（11）Outer setting reinforced earth layer（12）, then using toe wall（40）Slopes bottom is reinforced, most
Afterwards by slope protection layer（13）It is laid on the reinforcement soil layer（12）Outside；
Step 3：Above-mentioned protective slope structure（10）After the completion of laying, in slope protection layer（13）Upper plantation green plants
（131）.
2. the construction method of the compound bank protection of reinforced earth draining according to claim 1, it is characterised in that the step one
In, the Slope excavation of protection into the classification side slope of at least two-stage is treated, correspondence laying protective slope structure outside the classification side slope（10）；
Platform is set between the classification side slope（20）, the platform（20）Width be at least 2m.
3. the construction method of the compound bank protection of reinforced earth draining according to claim 2, it is characterised in that the platform
（20）Upper setting platform intercepting ditch（21）.
4. the construction method of the compound bank protection of reinforced earth draining according to claim 1, it is characterised in that the step one
In, slope surface is excavated into stepped structure, the height of the step-like structure is 0.5-1.5m, and its depth-width ratio is not less than
1:1.5。
5. the construction method of the compound bank protection of reinforced earth draining according to claim 1 or 4, it is characterised in that the step
In rapid one, the ratio of slope of the slopes after the excavation is not more than 1:1.5.
6. the construction method of the compound bank protection of reinforced earth draining according to claim 1, it is characterised in that the step 2
In, the protective slope structure（10）Top laying grout chip architecture（14）, it is described to grout chip architecture（14）With slope surface
Junction is provided with intercepting ditch（30）.
7. the construction method of the compound bank protection of reinforced earth draining according to claim 1, it is characterised in that the step 2
In, the reinforcement soil layer（12）Use volume ratio for 30% native horsestone material, and reinforcement soil layer（12）Laying width be not less than
2.5m。
8. the construction method of the compound bank protection of reinforced earth draining according to claim 1, it is characterised in that the step 2
In, the slope protection layer（13）It is provided with spilled water hole（132）And drainpipe（133）, the spilled water hole（132）It is arranged on domatic
Overcoat（13）Surface, the drainpipe（133）Through spilled water hole（132）And it is inserted into reinforcement soil layer（12）In.
9. the construction method of the compound bank protection of reinforced earth draining according to claim 1 or 6 or 7 or 8, it is characterised in that
In the step 3, the toe wall（40）Outer setting gutter（50）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177304.0A CN106703053A (en) | 2016-12-19 | 2016-12-19 | Construction method for reinforced soil drainage composite revetment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177304.0A CN106703053A (en) | 2016-12-19 | 2016-12-19 | Construction method for reinforced soil drainage composite revetment structure |
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| Publication Number | Publication Date |
|---|---|
| CN106703053A true CN106703053A (en) | 2017-05-24 |
Family
ID=58939171
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611177304.0A Pending CN106703053A (en) | 2016-12-19 | 2016-12-19 | Construction method for reinforced soil drainage composite revetment structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385701A (en) * | 2018-03-14 | 2018-08-10 | 中建五局土木工程有限公司 | Road Protection of Expansive Soil structure and its construction method |
| CN108797608A (en) * | 2018-06-21 | 2018-11-13 | 江苏地基工程有限公司 | A kind of assembled thin bamboo strips used for weaving foundation pit slope protection and its construction method |
| CN109972636A (en) * | 2019-04-19 | 2019-07-05 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of seepage-proof structure of geotechnical engineering side slope |
| CN116791634A (en) * | 2023-04-17 | 2023-09-22 | 广州航海学院 | Ecological slope protection structure and construction method |
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| CN103410159A (en) * | 2013-08-13 | 2013-11-27 | 南昌工程学院 | Expansive soil cut slope support structure and construction method thereof |
| CN104532857A (en) * | 2014-12-24 | 2015-04-22 | 中铁二院工程集团有限责任公司 | Flexible expansion reduced ecological slope protection construction |
| CN204703189U (en) * | 2015-06-09 | 2015-10-14 | 山西省交通规划勘察设计院 | A kind of cutting barricade being applicable to crevice water, diving growth |
| CN204825931U (en) * | 2015-07-02 | 2015-12-02 | 湖北文理学院 | Protective structure is administered to side slope |
| CN105887898A (en) * | 2016-06-07 | 2016-08-24 | 中交第二公路勘察设计研究院有限公司 | Swell-shrink characteristic rock-soil cut slope protection method and structure |
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2016
- 2016-12-19 CN CN201611177304.0A patent/CN106703053A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410159A (en) * | 2013-08-13 | 2013-11-27 | 南昌工程学院 | Expansive soil cut slope support structure and construction method thereof |
| CN104532857A (en) * | 2014-12-24 | 2015-04-22 | 中铁二院工程集团有限责任公司 | Flexible expansion reduced ecological slope protection construction |
| CN204703189U (en) * | 2015-06-09 | 2015-10-14 | 山西省交通规划勘察设计院 | A kind of cutting barricade being applicable to crevice water, diving growth |
| CN204825931U (en) * | 2015-07-02 | 2015-12-02 | 湖北文理学院 | Protective structure is administered to side slope |
| CN105887898A (en) * | 2016-06-07 | 2016-08-24 | 中交第二公路勘察设计研究院有限公司 | Swell-shrink characteristic rock-soil cut slope protection method and structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385701A (en) * | 2018-03-14 | 2018-08-10 | 中建五局土木工程有限公司 | Road Protection of Expansive Soil structure and its construction method |
| CN108797608A (en) * | 2018-06-21 | 2018-11-13 | 江苏地基工程有限公司 | A kind of assembled thin bamboo strips used for weaving foundation pit slope protection and its construction method |
| CN109972636A (en) * | 2019-04-19 | 2019-07-05 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of seepage-proof structure of geotechnical engineering side slope |
| CN109972636B (en) * | 2019-04-19 | 2024-03-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Water seepage prevention structure of geotechnical engineering side slope |
| CN116791634A (en) * | 2023-04-17 | 2023-09-22 | 广州航海学院 | Ecological slope protection structure and construction method |
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