CN110306572A - A kind of loess slope roughing-in slope protection prevention method - Google Patents
A kind of loess slope roughing-in slope protection prevention method Download PDFInfo
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- CN110306572A CN110306572A CN201910603485.6A CN201910603485A CN110306572A CN 110306572 A CN110306572 A CN 110306572A CN 201910603485 A CN201910603485 A CN 201910603485A CN 110306572 A CN110306572 A CN 110306572A
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- slope
- loess
- roughing
- rammer
- prevention method
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a kind of loess slope roughing-in slope protection prevention methods, the analytical methods for slope stability the following steps are included: step 1 rammer banket it is prefabricated, step 2 rammer, which bankets to mix with lime, to be set, the setting of step 3 slope foot spats parapet, step 4, which determines, rams body series, single-stage rams body height and rams body outer slope, the cleaning of step 5 slope surface, step 6 slope surface reinforcement building, step 7 top of the slope drain dyke are laid.The present invention is banketed using the rammer of volume ratio 3:7 and mix setting with lime, and the infiltration of water and the loss of soil are prevented；Have many advantages, such as that applied widely, construction is convenient, low in cost, the protection effect duration is long, slope surface damaged or destroyed by flood bring pipe safety risk when Canal in Loess Area slope roughing-in can be effectively reduced.
Description
Technical field
The present invention relates to a kind of analytical methods for slope stabilities, anti-more particularly, to a kind of loess slope roughing-in slope protection
Maintaining method.
Background technique
Canal in Loess Area carry out long-distance pipe cable laying operation process of construction in, pipeline often surround mountain area carry out construction build
If.In China Canal in Loess Area, such as when sweet peaceful, Qinghai, Shan, Inner Mongol area carry out laying long-distance pipe construction, mostly directly
It is constructed by the way of pipe canal digging, this not only changes original environmental aspect to varying degrees, but also in pipeline
Long-distance pipe when after the completion of laying to operation can be caused very big due to loess disease and loess high gradient slope to pipe safety
Threat.In the construction of Canal in Loess Area slope roughing-in, due to loess slope self-characteristic, loess is after being immersed in water, soil
The cementation of intergranular is destroyed immediately, sticks the great reduction of poly- intensity, and mechanical strength also declines to a great extent therewith.Natural loess is oblique
The loess pipe trench being backfilling and compacted on slope and slope through original soil is typically in stable state, once immersion, soil strength will be fast
Speed reduces.Loess is once largely soaked or loess slope is washed away by heavy rain and cannot effectively be contained, slope surface will
Soil erosion can occur, pipe trench collapses, earth steps collapse even Failure of Slopes situations such as.Therefore loess slope area is laid and is grown
How to carry out effective protection when defeated pipeline, prevent erosion, pipe trench collapses, earth steps collapse even Failure of Slopes situations such as hair
Life is this case problem to be solved.
Summary of the invention
It is an object of the present invention to provide a kind of loess slope roughing-in slope protection prevention methods, when to loess slope roughing-in
Effective slope protection prevention is carried out, is conducive to improve loess slope stability and fastness, improves pipe safety.
To achieve the above object, the technical scheme adopted by the invention is that:
A kind of loess slope roughing-in slope protection prevention method, the slope protection prevention method is the following steps are included: step 1 is rammed
It bankets prefabricated, step 2 rammer, which bankets to mix with lime, to be set, and step 3 top of the slope drain dyke is laid, and step 4, which determines, rams body series, single-stage rammer
Body height and rammer body outer slope, step 5 slope foot spats parapet are laid, the cleaning of step 6 slope surface, step 7 slope surface reinforcement building, step
Rapid 8 check building intensity.
Further, the step 1 ram banket it is prefabricated in rammer banket can be in sandy clay, fresh loess or clay
Any one or more combination.
Further, the moisture content that bankets that rams is 15%~20%.
Further, step 2 rammer bankets and lime is banketed according to rammer and sufficiently mixed with lime with the volume ratio of 3:7
Set, ultimately form rammer dirt, and mix set after the completion of time of repose be less than or equal to 5 hours.
Further, the step 3 top of the slope drain dyke is laid in top of the slope, for preventing rainwater from directly washing away loess slope
Top.
Further, when the step 5 slope foot spats parapet is laid, 0.6m is dug down change and fill out rammer in the substrate of parapet
Dirt.
Further, the substrate excavate 0.5m original soil and banketed with the rammer of volume ratio 3:7 mixed with lime set made of rammer
Dirt change filling out.
Further, the wall is using any one or more group in plain concrete, cyclopean concrete or stone masonry
At, and wall intensity reach design strength 70% after carry out building.
Further, the step 7 slope surface reinforcement building, muscle body is made using the straw rope of straw braiding, and diameter
More than or equal to 3cm.
Further, the muscle body is evenly arranged along slope direction transverse and longitudinal intersection, spacing 40cm, and every building 20cm cloth
Set one layer.
Further, the building is with a thickness of 1.5~2m, preferably 1.5m, and the rammer body compacting factor after compacting is not
Less than 0.93.
The present invention compared with the existing technology the advantages of be:
(1) entirely constructing, convenient, low in cost, the protection effect duration is long, by Canal in Loess Area slope slope surface damaged or destroyed by flood band
The pipe safety risk come effectively reduces；(2) it bankets sufficiently to mix with lime progress using the rammer of volume ratio 3:7 and set, formed and rammed
Dirt prevents the infiltration of water and the loss of soil；(3) the whole strong of body is rammed by the way that muscle is carried out arranged in a crossed manner improve of transverse and longitudinal
Degree, and spats parapet then enhances the stability rammed and banketed；(4) by laying in top of the slope drain dyke, it is whole to improve construction front and back
The safety and feasibility of a roughing-in.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of loess slope roughing-in slope protection prevention method of the present invention；
Fig. 2 is a kind of construction procedure figure of loess slope roughing-in slope protection prevention method of the present invention.
In figure: 1. slopes, 2. slope top of the slope, the 3. building soil bodys, 4. spats parapets, the grey rammed earth of 5. rammers, which changes, to be filled out, 6. ground
Line.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in Figs. 1-2, the invention discloses a kind of loess slope roughing-in slope protection prevention method, the side slope protections
Means of defence is the following steps are included: step 1 rammer bankets prefabricated, and step 2 rammer bankets to mix with lime and sets, step 3 top of the slope drain dyke
It lays, step 4, which determines, rams body series, single-stage rams body height and ram body outer slope, and step 5 slope foot spats parapet is laid, step 6
Slope surface cleaning, step 7 slope surface reinforcement building, step 8 check building intensity.
The step 1 are as follows: ram any one or more group banketed to be in sandy clay, fresh loess or clay
It closes；It must not use containing mud, peat, frozen soil, swelled ground and organic substance soil as fill material, and ram the moisture content that bankets and be
15%~20%.
The step 2 are as follows: rammer bankets and lime is banketed sufficiently to be mixed with the volume ratio progress of 3:7 with lime according to rammer and be set, most
End form at ram dirt, and mix set after the completion of time of repose be less than or equal to 5 hours.
The step 3 are as follows: top of the slope drain dyke is laid in top of the slope, for preventing rainwater from directly washing away loess slope top.
The step 4 are as follows: value is carried out according to below table:
Table 1 rams body series, single-stage rams body height and rams body outer slope value table
The step 5 are as follows: when slope foot spats parapet is laid, dig 0.6m down in the substrate of parapet and change and fill out volume ratio 3:
7 rammer bankets the rammer dirt mixed and set with lime；The wall of slope foot spats parapet uses plain concrete, cyclopean concrete or stone masonry
In any one or more composition, and wall intensity reach design strength 70% after carry out building.
The step 6 are as follows: the vegetation in slope surface, and the construction riding track width that reserved width is 1~1.5m are removed before building.
The step 7 are as follows: muscle body is made using the straw rope of straw braiding, and diameter is not less than 3cm；Muscle body is along loess
Transverse and longitudinal intersection in slope direction is evenly arranged, spacing 40cm, carries out building with dirt is rammed, every building 20cm arranges one layer of muscle body.
Building is with a thickness of 1.5~2m, preferably 1.5m, and the rammer body compacting factor after compacting is not less than 0.93.
The step 8 are as follows: the loess slope after step 7 building is carried out to check whether building compacting situation complies with standard.
The muscle body use straw braiding straw rope, straw rope have certain corrosion resistance, fibr tissue can bear compared with
Big pulling force, in stable condition during tension, compared with conventional plain earth rammer body, tensile strength improves 30%, and straw holds
Easily obtain, it is cheap.
The rammer, which bankets, to carry out mixing the rammer dirt set according to 3:7 volume ratio with lime, moisture content when using in construction
It should be maintained at 22%~23%.
Rammer dirt itself intensity is lower, and impact resistance is weak, is evenly arranged when ramming dirt to loess slope building
Reinforcing body is by the integral strength after building is greatly improved.
In order to the clearer understanding present invention, it is described in detail taking the embodiment as an example:
As shown in Figs. 1-2, when needing to loess slope slope surface roughing-in slope protection prevention, first by sandy clay and stone
Ash is sufficiently mixed according to the volume ratio progress of 3:7 and is set, and rammer dirt is ultimately formed；Then top of the slope section is laid in slope top of the slope 2 to drain
Ditch search and determine ramming body series, single-stage rams body height and ramming body outer slope, be opened in 4 bottom of spats parapet by table 1
Dig the substrate of 0.6m depth, and banketed with the rammer of volume ratio 3:7 mixed with lime set made of ram grey rammed earth and change and fill out 5；It changes and completes
Spats parapet 4 is configured after, height is the upward 0.25m of ground line, downward 0.25m, and 0.5m high, wall use hair in total
Stone concrete is built, and wall intensity should reach design strength 70%.According to the vertical height H=5m of the present embodiment slope slopes 1
Being determined from above-mentioned table 1 and ramming body series is that 2, single-stage rams body height 2.5 and rams 65 ° of body outer slope, then according to determining
The reserved construction riding track width of value be 1.2m, while removing slope vegetation, dirt will be rammed at slope surface, that is, building soil body 3 and is rammed
It builds, is evenly arranged the muscle body that diameter is 3cm according to along slope direction transverse and longitudinal intersection while building, spacing 40cm, and every
Building 20cm arranges one layer of muscle body, and building is with a thickness of 1.5m, and the rammer body compacting factor after compacting is not less than 0.93, i.e. building is complete
At.
The present invention has many advantages, such as that protection effect is good, construction is convenient, low in cost, the protection effect duration is long, can have
Slope surface damaged or destroyed by flood bring pipe safety risk when effect reduces Canal in Loess Area slope roughing-in.
Claims (8)
1. a kind of loess slope roughing-in slope protection prevention method, it is characterised in that: the slope protection prevention method includes following step
It is rapid:
Step 1 rammer banket it is prefabricated,
Step 2 rammer, which bankets to mix with lime, to be set,
Step 3 top of the slope drain dyke is laid,
Step 4, which determines, rams body series, single-stage rams body height and rams body outer slope,
Step 5 slope foot spats parapet is laid,
The cleaning of step 6 slope surface,
Step 7 slope surface reinforcement building,
Step 8 checks building intensity.
2. a kind of loess slope roughing-in slope protection prevention method according to claim 1, it is characterised in that: the step
1 ram banket it is prefabricated in rammers banket and can be combined for any one or more in sandy clay, fresh loess or clay.
3. a kind of loess slope roughing-in slope protection prevention method according to claim 2, it is characterised in that: the rammer is filled out
Native moisture content is 15%~20%.
4. a kind of loess slope roughing-in slope protection prevention method according to claim 1, it is characterised in that: the step
2 rammers banket and lime is banketed sufficiently to be mixed with the volume ratio progress of 3:7 with lime according to rammer and be set, and ultimately form rammer dirt, and mix and set
Time of repose is less than or equal to 5 hours after the completion.
5. a kind of loess slope roughing-in slope protection prevention method according to claim 1, it is characterised in that: the step
3 top of the slope drain dykes are laid in top of the slope, for preventing rainwater from directly washing away loess slope top.
6. a kind of loess slope roughing-in slope protection prevention method according to claim 1, it is characterised in that: the step
When 5 slope foot spats parapets are laid, 0.6m is dug down change and fill out rammer dirt in the substrate of parapet.
7. a kind of loess slope roughing-in slope protection prevention method according to claim 1, it is characterised in that: the step
7 slope surface reinforcement buildings, muscle body are made using the straw rope of straw braiding, and diameter is more than or equal to 3cm.
8. a kind of loess slope roughing-in slope protection prevention method according to claim 7, it is characterised in that: the muscle body
It is evenly arranged along slope direction transverse and longitudinal intersection, spacing 40cm, and every building 20cm arranges one layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603485.6A CN110306572A (en) | 2019-07-05 | 2019-07-05 | A kind of loess slope roughing-in slope protection prevention method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603485.6A CN110306572A (en) | 2019-07-05 | 2019-07-05 | A kind of loess slope roughing-in slope protection prevention method |
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| CN110306572A true CN110306572A (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910603485.6A Pending CN110306572A (en) | 2019-07-05 | 2019-07-05 | A kind of loess slope roughing-in slope protection prevention method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201991010U (en) * | 2011-02-28 | 2011-09-28 | 中国电力工程顾问集团西南电力设计院 | Ecological environmental protection type one-way geogrid reinforced soil side slope device |
| CN105625444A (en) * | 2016-03-14 | 2016-06-01 | 攀枝花学院 | Impermeable surface layer structure for soil slope |
-
2019
- 2019-07-05 CN CN201910603485.6A patent/CN110306572A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201991010U (en) * | 2011-02-28 | 2011-09-28 | 中国电力工程顾问集团西南电力设计院 | Ecological environmental protection type one-way geogrid reinforced soil side slope device |
| CN105625444A (en) * | 2016-03-14 | 2016-06-01 | 攀枝花学院 | Impermeable surface layer structure for soil slope |
Non-Patent Citations (1)
| Title |
|---|
| YANGMOCHOURBHW: "黄土区管道加筋干打垒护坡防护方法", 《豆丁建筑》 * |
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Application publication date: 20191008 |
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