CN115288168A - Sand soil subgrade construction period slope comprehensive anti-scouring structure and protection method - Google Patents
Sand soil subgrade construction period slope comprehensive anti-scouring structure and protection method Download PDFInfo
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- CN115288168A CN115288168A CN202211016597.XA CN202211016597A CN115288168A CN 115288168 A CN115288168 A CN 115288168A CN 202211016597 A CN202211016597 A CN 202211016597A CN 115288168 A CN115288168 A CN 115288168A
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- 239000002689 soil Substances 0.000 title claims abstract description 56
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000009991 scouring Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 17
- 239000004576 sand Substances 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 239000010902 straw Substances 0.000 claims abstract description 31
- 230000000903 blocking effect Effects 0.000 claims abstract description 27
- 239000011083 cement mortar Substances 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000007480 spreading Effects 0.000 claims description 6
- 238000003892 spreading Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 abstract description 6
- 241000196324 Embryophyta Species 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005034 decoration Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Environmental Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Botany (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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a comprehensive side slope anti-scouring structure in a sandy soil subgrade construction period, which comprises an inclined slope surface, a water blocking ridge, a rapid trough, a ramp protection way and a temporary side ditch, wherein the water blocking ridge is transversely arranged at the top of the inclined slope surface, a plurality of openings are formed in the water blocking ridge and communicated with the rapid trough, the rapid trough is longitudinally arranged on the inclined slope surface, the temporary side ditch is arranged at the bottom of the inclined slope surface, the ramp protection way is arranged between the temporary side ditch and the inclined slope surface, the temporary side ditch is connected below the rapid trough, the bottom layer of the inclined slope surface is covered soil, flower and grass seeds are spread on the covered soil, a degradable layer of straw fiber curtain is laid above the flower and grass seeds, and the degradable straw fiber curtain is fixed on the inclined slope surface by U-shaped nails.
Description
Technical Field
The invention belongs to the field of slope protection, and particularly relates to a comprehensive anti-scouring structure and a protection method for a slope during a sandy soil subgrade construction period.
Background
In the construction of highways, sandy soil foundations are often found in areas such as flood plain, river delta, coastal plain and the like in China, the amount of earth and earth in the construction of the roadbed is large, the construction period is long, the roadbed is often damaged by rainwater washing side slopes, water and soil loss, dust raising and the like in the construction period, and similar roadbed side slope protection methods have the problems of easy damage, poor protection effect, unattractive appearance, easy environmental pollution and the like.
Disclosure of Invention
In order to solve the problems, the invention discloses a comprehensive side slope anti-scouring structure and a protection method in a sandy soil subgrade construction period, which have the advantages of simple structure, good side slope soil stabilization effect, low construction cost, effective prevention of dust raising and scouring water damage during construction, improvement of the overall structure and stability of the side slope, and good greening and aesthetic effects.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a scouring prevention structure is synthesized to sandy soil subgrade construction period side slope, includes slope surface, the ridge of blocking water, rapid trough, berm way, interim side ditch, the horizontal setting in slope surface top in the ridge of blocking water is equipped with a plurality of openings and rapid trough intercommunication on the ridge of blocking water, the rapid trough vertically sets up on slope surface, the opening is the cement mortar face with rapid trough surface and both sides bank protection, interim side ditch sets up in slope surface's bottom, berm way sets up between interim side ditch and slope surface, interim side ditch is connected to the rapid trough below, slope surface bottom is bordure, spreading flowers and plants seed on the soil of borduring, lay one deck degradable straw fibre curtain above flowers and plants seed, the U shaped nail is fixed degradable straw fibre curtain on slope surface with degradable straw fibre curtain.
As an improvement of the invention, the inclination angle of the inclined slope is 45 ± 5 °.
As an improvement of the invention, the water blocking ridge is filled with soil on the roadbed, and the cross section of the water blocking ridge is trapezoidal or semicircular. The height is 10-15cm.
As an improvement of the invention, the inclined slope surface, the water blocking ridge, the ramp protecting channel and the temporary side ditch are arranged in parallel along the length direction.
As an improvement of the invention, the section of the rapid trough is a square trough.
As an improvement of the invention, a color steel plate is paved on the bottom surface of the rapid trough.
As an improvement of the invention, the U-shaped nails are arranged in a crisscross arrangement.
The invention relates to a protection method of a side slope comprehensive anti-scouring structure in a sandy soil subgrade construction period, which comprises the following specific steps of:
the method comprises the following steps: excavating a temporary side ditch on the outer side of the roadbed toe line, arranging a slope protection way between the temporary side ditch and the inclined slope surface, arranging a longitudinal slope at the bottom of the temporary side ditch, compacting the slope surfaces on two sides of the temporary side ditch, and leveling the slope surfaces;
step two: laying a layer of edge-covering soil on the inclined slopes on two sides of the roadbed, wherein the soil is selected from silty clay or loam;
step three: a water blocking ridge is arranged at the top of the inclined slope surface to ensure that the slope surface is linear and straight;
step four: arranging a plurality of torrent tanks on the inclined slope surface, extending the water outlet edge to the temporary side ditch, sealing the top (the opening) and the bottom and two sides of the water inlet of the torrent tank by using cement mortar plastering, and laying color steel plates on the bottom surface and the inner side of the torrent tank;
step five: manually cleaning the inclined slope surface, removing unstable stones or sundries on the slope surface, loosening the edge-covering soil on the slope surface, and spreading the flowers and plants on the edge-covering soil;
step six: watering the ground, keeping the soil moist, extending the degradable straw fiber curtain 10-20cm at the top of the inclined slope surface, burying the curtain in the soil, spreading the curtain to the ramp protection way from top to bottom, overlapping the junction, pressing the next-stage curtain below the previous-stage curtain, and allowing the overlapping surface to conform to the wind direction;
step seven: the degradable straw fiber curtains are fixedly connected by using U-shaped nails which are arranged in a crisscross manner, and the degradable straw fiber curtains are fully contacted with the inclined slope surface and are in a semi-tight state without being suspended;
step eight: and spraying water for maintenance after laying the degradable straw fiber curtain.
The beneficial effects of the invention are as follows:
(1) The side slope scour prevention method during the sandy soil subgrade construction period is simple in construction process and convenient to connect;
(2) The method has the advantages that the straw fiber curtain is degradable, pollution is avoided, the protection effect is good, the straw fiber curtain is green and attractive, the straw fiber curtain can be used as a fertilizer after being degraded, the growth of flowers and plants is promoted, and the anti-scouring effect on the sandy soil subgrade side slope is enhanced;
(3) The method combines various modes to comprehensively prevent and control the side slope scouring of the sandy soil subgrade, and has excellent anti-scouring effect.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the closure of the torrent tank cement mortar of the present invention.
Fig. 3 is a schematic view of a half-width roadbed section.
Fig. 4 is a cross-sectional view of the chute of the invention.
Fig. 5 is a cross-sectional view of an inclined ramp surface according to the present invention.
List of reference symbols:
1. an inclined slope surface; 2. water blocking ridges; 3. a chute; 4. opening; 5. degradable straw fiber curtains; 6. a temporary gutter; 7. a ramp guard; 8. seeds of flowers and plants; 9. covering soil; 10. a U-shaped nail; 11. two side revetments of the rapid trough, 12 color steel plates.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and detailed description, which will be understood as being illustrative only and not limiting in scope.
As shown in the figure, the comprehensive side slope anti-scouring structure in the sandy soil subgrade construction period comprises an inclined slope surface 1, a water blocking ridge 2, a rapid trough 3, a retaining ramp 7 and a temporary side ditch 6, wherein the water blocking ridge 2 is transversely arranged on the top of the inclined slope surface 1, a plurality of openings 4 are formed in the water blocking ridge 2 and communicated with the rapid trough 3, the rapid trough 3 is longitudinally arranged on the inclined slope surface 1, the surfaces of the openings and the rapid trough 3 and slope protection 11 on two sides are cement mortar surfaces, the temporary side ditch 6 is arranged at the bottom of the inclined slope surface 1, the retaining ramp 7 is arranged between the temporary side ditch 6 and the inclined slope surface, the temporary side ditch 6 is connected below the rapid trough 3, the bottom layer of the inclined slope surface 1 is edge-covered soil 9, flower and grass seeds 8 are spread on the edge-covered soil 9, a layer of degradable straw fiber curtain 5 is laid above the flower and grass seeds 8, and the degradable straw fiber curtain 5 is fixed on the slope surface 1 through U-shaped nails 10.
The inclination angle of the inclined slope surface 1 is 45 +/-5 degrees.
The cross section of the water blocking ridge 2 is trapezoidal or semicircular.
The invention relates to a protection method of a comprehensive side slope scour prevention structure in a sandy soil subgrade construction period, which comprises the following specific steps of:
the method comprises the following steps: excavating a temporary side ditch on the outer side of a slope toe line of the roadbed, arranging a slope protection way between the temporary side ditch and the inclined slope surface, arranging a longitudinal slope at the bottom of the temporary side ditch, compacting the slope surfaces on two sides of the temporary side ditch, and flattening the slope surfaces;
step two: laying a layer of edge-covering soil on the inclined slopes on two sides of the roadbed, wherein the soil is selected from silty clay or loam;
step three: a water blocking ridge is arranged at the top of the inclined slope surface to ensure that the slope surface is linear and straight; the water blocking ridges are filled with soil on the roadbed, and the height of the water blocking ridges is 10-15cm.
Step four: arranging a plurality of rapid chutes on the inclined slope surface, wherein the water outlets extend to the temporary side ditches, the top (the opening) and the bottom and two sides of the water inlets of the rapid chutes are closed by cement mortar plastering, and color steel plates are laid on the bottom surface and the inner side of the rapid chutes, so that water can flow down rapidly;
step five: manually cleaning the inclined slope surface, removing unstable stones or sundries on the slope surface, loosening edge-covering soil on the slope surface, and spreading flower and grass seeds on the edge-covering soil;
step six: watering the ground, keeping the soil moist, extending the degradable straw fiber curtain on the top of the inclined slope surface for 10-20cm, burying the degradable straw fiber curtain in the soil, flatly paving the degradable straw fiber curtain on a ramp protection way from top to bottom, lapping the junction, pressing the next-stage curtain below the previous-stage curtain, and enabling the lapping surface to conform to the wind direction;
step seven: the degradable straw fiber curtains are well fixed by arranging the U-shaped nails in a crisscross manner, so that the degradable straw fiber curtains are fully contacted with the inclined slope surface and are in a semi-tight state without being suspended;
step eight: and spraying water for maintenance after laying the degradable straw fiber curtain.
As an improvement of the invention, the section of the rapid trough is a square trough.
The inclined slope surface 1, the water blocking ridges 2, the ramp protection channels 7 and the temporary side ditches 6 are arranged in parallel along the length direction, when the novel slope protection device is used, rainwater flows to the water blocking ridges 2 on two sides along the 2% cross slope direction of a roadbed, flows to the positions with the openings 4 along the longitudinal slope direction of the roadbed after being blocked by the water blocking ridges 2, then flows down into the temporary side ditches 6 along the slope along the rapid trough 3 with the protection slope 11, and the roadbed and the side slopes are effectively prevented from being washed by rainwater; firstly, a layer of edge-covered soil 9 is paved on the inclined slope surface 1, then, flowers and plants seeds 8 are spread on the edge-covered soil 9, and then, the degradable straw fiber curtains 5 are paved to combine the edge-covered soil and the grass seeds into a complete roadbed (side slope) protection system, so that the sandy roadbed 1 (side slope) is effectively protected, the construction process is simple, and the connection is convenient; the straw fiber curtain 5 is penetrated after the flowers and the plants grow, is green and beautiful, prevents water and soil loss, can be degraded after a plurality of months, the straw fiber curtain can be used as a fertilizer after being degraded, thereby promoting the growth of flowers and plants and strengthening the effect of preventing the sandy soil subgrade side slope from being scoured.
It should be noted that the above-mentioned contents only illustrate the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and it is obvious to those skilled in the art that several modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a sandy soil subgrade construction period side slope is synthesized scour prevention structure which characterized in that: including slope surface, the ridge of blocking water, rapid trough, berm way, interim border ditch, the ridge of blocking water transversely sets up at the slope surface top, is equipped with a plurality of openings and rapid trough intercommunication on the ridge of blocking water, the rapid trough vertically sets up on slope surface, the opening is the cement mortar face with rapid trough surface and both sides bank protection, interim border ditch sets up in slope surface's bottom, berm way sets up between interim border ditch and slope surface, interim border ditch is connected to the rapid trough below, slope surface's bottom is bordure soil, on bordure soil spread flowers and plants seeds, lay one deck degradable straw fibre curtain above flowers and plants seeds, the U shaped nail is fixed degradable straw fibre curtain on slope surface with degradable straw fibre curtain.
2. The comprehensive anti-scouring structure for the side slope in the sandy soil subgrade construction period according to claim 1, which is characterized in that: the inclination angle of the inclined slope surface is 45 +/-5 degrees.
3. The comprehensive side slope scour prevention structure for the sandy soil subgrade in the construction period according to claim 1, which is characterized in that: the cross section of the water blocking ridge is trapezoidal or semicircular.
4. The comprehensive anti-scouring structure for the side slope in the sandy soil subgrade construction period according to claim 1, which is characterized in that: the inclined slope surface, the water blocking ridge, the ramp protecting way and the temporary side ditch are arranged in parallel along the length direction.
5. The comprehensive anti-scouring structure for the side slope in the sandy soil subgrade construction period according to claim 1, which is characterized in that: the section of the rapid trough is a square trough.
6. The comprehensive side slope scour prevention structure for the sandy soil subgrade in the construction period according to claim 1, which is characterized in that: and a color steel plate is laid on the bottom surface of the rapid trough.
7. The comprehensive anti-scouring structure for the side slope in the sandy soil subgrade construction period according to claim 1, which is characterized in that: the U-shaped nails are arranged in a crisscross manner.
8. A protection method of a side slope comprehensive anti-scouring structure in a sandy soil subgrade construction period is characterized in that: the method comprises the following specific steps:
the method comprises the following steps: excavating a temporary side ditch on the outer side of the roadbed toe line, arranging a slope protection way between the temporary side ditch and the inclined slope surface, arranging a longitudinal slope at the bottom of the temporary side ditch, compacting the slope surfaces on two sides of the temporary side ditch, and leveling the slope surfaces;
step two: paving a layer of tipping soil on the inclined slopes on two sides of the roadbed, wherein the soil is selected from silty clay or loam;
step three: a water blocking ridge is arranged at the top of the inclined slope surface to ensure that the slope surface is linear and straight;
step four: arranging a plurality of rapid flow grooves on the inclined slope surface, wherein the water outlet edges extend to the temporary side ditches, the top, the bottom and two sides of the water inlet of each rapid flow groove are sealed by cement mortar plastering, and color steel plates are laid on the bottom surface and the inner side of each rapid flow groove;
step five: manually cleaning the inclined slope surface, removing unstable stones or sundries on the slope surface, loosening the edge-covering soil on the slope surface, and spreading the flowers and plants on the edge-covering soil;
step six: watering the ground, keeping the soil moist, extending the degradable straw fiber curtain 10-20cm at the top of the inclined slope surface, burying the curtain in the soil, spreading the curtain to the ramp protection way from top to bottom, overlapping the junction, pressing the next-stage curtain below the previous-stage curtain, and allowing the overlapping surface to conform to the wind direction;
step seven: the degradable straw fiber curtains are fixedly connected by using the U-shaped nails which are arranged in a cross-shaped arrangement manner, so that the degradable straw fiber curtains are fully contacted with the inclined slope surface and are in a semi-tight state without being suspended;
step eight: and spraying water for maintenance after laying the degradable straw fiber curtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211016597.XA CN115288168A (en) | 2022-08-24 | 2022-08-24 | Sand soil subgrade construction period slope comprehensive anti-scouring structure and protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211016597.XA CN115288168A (en) | 2022-08-24 | 2022-08-24 | Sand soil subgrade construction period slope comprehensive anti-scouring structure and protection method |
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| Publication Number | Publication Date |
|---|---|
| CN115288168A true CN115288168A (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211016597.XA Pending CN115288168A (en) | 2022-08-24 | 2022-08-24 | Sand soil subgrade construction period slope comprehensive anti-scouring structure and protection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717346A (en) * | 2022-12-08 | 2023-02-28 | 江苏海洋大学 | Be applied to two base structures of giving up admittedly among road engineering |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100496118B1 (en) * | 2004-02-02 | 2005-06-16 | 충청북도 | Method to keep a green slope surface |
| CN203034335U (en) * | 2013-01-31 | 2013-07-03 | 江苏淮安交通勘察设计研究院有限公司 | Silty soil section highway drainage system |
| CN103266549A (en) * | 2013-05-28 | 2013-08-28 | 长沙理工大学 | Road surface drainage system for construction period of highway reconstruction and extension project |
| CN108442392A (en) * | 2018-05-31 | 2018-08-24 | 中国二十二冶集团有限公司 | Roadbed side slope entirety green safeguard structure and its construction method |
-
2022
- 2022-08-24 CN CN202211016597.XA patent/CN115288168A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100496118B1 (en) * | 2004-02-02 | 2005-06-16 | 충청북도 | Method to keep a green slope surface |
| CN203034335U (en) * | 2013-01-31 | 2013-07-03 | 江苏淮安交通勘察设计研究院有限公司 | Silty soil section highway drainage system |
| CN103266549A (en) * | 2013-05-28 | 2013-08-28 | 长沙理工大学 | Road surface drainage system for construction period of highway reconstruction and extension project |
| CN108442392A (en) * | 2018-05-31 | 2018-08-24 | 中国二十二冶集团有限公司 | Roadbed side slope entirety green safeguard structure and its construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717346A (en) * | 2022-12-08 | 2023-02-28 | 江苏海洋大学 | Be applied to two base structures of giving up admittedly among road engineering |
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Application publication date: 20221104 |
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