CN109930613A - A kind of construction method and structure of the roadbed slope drainage system that seeps water - Google Patents
A kind of construction method and structure of the roadbed slope drainage system that seeps water Download PDFInfo
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- CN109930613A CN109930613A CN201910329900.3A CN201910329900A CN109930613A CN 109930613 A CN109930613 A CN 109930613A CN 201910329900 A CN201910329900 A CN 201910329900A CN 109930613 A CN109930613 A CN 109930613A
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- slope
- dewatering well
- drainpipe
- roadbed
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 230000008595 infiltration Effects 0.000 claims abstract description 22
- 238000001764 infiltration Methods 0.000 claims abstract description 22
- 238000001556 precipitation Methods 0.000 claims abstract description 12
- 239000003673 groundwater Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 6
- 239000004746 geotextile Substances 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 3
- 238000009966 trimming Methods 0.000 abstract description 3
- 230000004224 protection Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The invention discloses the construction method and structure of a kind of roadbed slope drainage system that seeps water, the present invention is by the slope trimming of base side side face of slope, and direction and level of ground water in top of the slope dewatering well, by dewatering well change seepage water pressure into a ladder；Precipitation bottom is connect by drainpipe with the intercepting ditch of every grade of step plane, and the water in dewatering well is discharged by intercepting ditch；To increase the stability of side slope, with the construction and traffic safety of the roadbed that ensures to seep water.Cut subgrade side slope section of the present invention suitable for seep water serious or side slope internal drainage difficulty.The level of ground water in side slope can be reduced, and water is collected in dewatering well, side slope is discharged by drainpipe, improves the shearing strength of slope geological.Dewatering well lowering of watertable is set before slope excavating, improves excavation condition, is prevented in work progress since infiltration leads to slope failure.
Description
Technical field
The present invention relates to the construction methods and structure of a kind of roadbed slope drainage system that seeps water, belong to highway subgrade slope row
Water technical field.
Background technique
Southwest Mountainous Areas complex geologic conditions, selection of route is difficult, and it is also relatively more to fill out excavation quantity.Encounter infiltration roadbed side
Slope section, at present frequently with method be to slow down side slope, grass planting protection, anchor pole sash beam, shotcrete with steel bar nets and top of the slope intercepting ditch is set
And the slope protections such as platform intercepting ditch and draining.Since infiltration section groundwater level depth is shallower, side slope is constantly in after excavation
Water-saturated state, it is serious to encounter rainwater season side slope seepage, generates and is directed toward side slope exosmosis water pressure and adds slope geological parameter
The comprehensive circulating effect such as reduction, Slope Stability are unfavorable.
Therefore, there is also certain defects for the prior art, have much room for improvement.
Summary of the invention
The object of the present invention is to provide the construction methods and structure of a kind of roadbed slope drainage system that seeps water, to pass through
Dewatering well is set on the outside of side slope, reduces the level of ground water of side slope, and engages the water in slope drainage system discharge dewatering well, is changed
The direction for becoming seepage water pressure, increases the stability of side slope, thus overcome the deficiencies in the prior art.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of construction method of infiltration roadbed slope drainage system of the invention, this method be by the slope trimming of base side side at
Staircase-like inclination slope surface, and in top of the slope dewatering well, change direction and the level of ground water of seepage water pressure by dewatering well；Dewatering well
Bottom is connect by drainpipe with the intercepting ditch of every grade of step plane, and the water in dewatering well is discharged by intercepting ditch；To increase
The stability of side slope, with the construction and traffic safety of the roadbed that ensures to seep water.
In preceding method, every grade of step plane is equipped with dewatering well, and precipitation bottom passes through drainpipe and next stage
The intercepting ditch of step plane connects.
In preceding method, the infiltration roadbed keeps to the side slope side equipped with gutter, and gutter passes through drainpipe and upper level step
The precipitation bottom of plane connects.
A kind of structure of the infiltration roadbed slope drainage system of the invention constituted according to the above method, including it is located at water seepage road
The side slope of base side；Side slope is staircase-like inclination slope surface；At the top of side slope and every grade of step plane is equipped with one group of dewatering well, and every grade
Step plane is equipped with intercepting ditch；Intercepting ditch is connect through drainpipe with upper level precipitation bottom；Infiltration roadbed keeps to the side slope side
Equipped with gutter, gutter is connect through drainpipe with upper level precipitation bottom.
In aforementioned structure, seepy material is filled in the dewatering well, dewatering well top opening is sealed using plain concrete or clay
Mouthful.
In aforementioned structure, the drainpipe is obliquely installed, and one end that drainpipe is connect with precipitation bottom is higher than the other end.
In aforementioned structure, permeable hole is evenly equipped on the tube wall of the drainpipe, drainpipe is wrapped with geotextiles.
Cut subgrade side slope section of the present invention suitable for seep water serious or side slope internal drainage difficulty.By being beaten in side slope top of the slope
Dewatering well reduces the level of ground water in side slope, and water is collected in dewatering well, side slope is discharged by drainpipe, with improving side slope
The shearing strength of matter.The water inside side slope is permeated into dewatering well simultaneously, changes the direction of seepage water pressure, Slope Stability
Favorably；Dewatering well is beaten before slope excavating, by dewatering well lowering of watertable, is improved excavation condition, is prevented work progress
In due to infiltration lead to slope failure；After infiltration is pooled to dewatering well in side slope, side slope body keeps relatively dry, anti-conducive to side slope
Shield；Drainpipe connects with dewatering well excludes rainwater in time, can effectively prevent rainy season SEA LEVEL VARIATION, impeded drainage causes side slope to be lost
Surely.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
The label in accompanying drawing is: 1- infiltration roadbed, 2- side slope, 3- face of slope, 4- step plane, 5- dewatering well, 6- are cut
Ditch, 7- drainpipe, 8- gutter, 9- seepy material, 10- plain concrete or clay, 11- permeable hole, 12- geotextiles.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
The construction method of a kind of infiltration roadbed slope drainage system of the invention, as shown in Figure 1, this method is by base side one
The slope trimming of side face of slope into a ladder, and in top of the slope dewatering well, by dewatering well change seepage water pressure direction and
Level of ground water；Precipitation bottom is connect by drainpipe with the intercepting ditch of every grade of step plane, and dewatering well is discharged by intercepting ditch
In water；To increase the stability of side slope, with the construction and traffic safety of the roadbed that ensures to seep water.Every grade of step plane is equipped with
Dewatering well, precipitation bottom are connect by drainpipe with the intercepting ditch of next stage step plane.Infiltration roadbed slope side of keeping to the side is set
There is gutter, gutter is connect by drainpipe with the precipitation bottom of upper level step plane.
The structure of a kind of infiltration roadbed slope drainage system of the invention constituted according to the above method, as shown in Figure 1, the knot
Structure includes the side slope 2 positioned at infiltration 1 side of roadbed；Side slope 2 is staircase-like inclination slope surface 3；2 top of side slope and every grade of step plane
4 are equipped with one group of dewatering well 5, and every grade of step plane 4 is equipped with intercepting ditch 6；Intercepting ditch 6 is through drainpipe 7 and upper level dewatering well 5
Bottom connection；The roadbed 1 that seeps water leans on 2 side of side slope to be equipped with gutter 8, and gutter 8 is connect through drainpipe 7 with 5 bottom of upper level dewatering well.
Seepy material 9 is filled in dewatering well 5,5 top opening of dewatering well is sealed using plain concrete or clay 10.Drainpipe 7 is obliquely installed,
One end that drainpipe 7 is connect with 5 bottom of dewatering well is higher than the other end.Permeable hole 11, drainpipe are evenly equipped on the tube wall of drainpipe 7
7 are wrapped with geotextiles 12.
Embodiment
This example is as shown in Figure 1, include dewatering well 5, drainpipe 7, intercepting ditch 6, gutter 8 etc..2~3 meters of positions outside top of the slope
Dewatering well 5 is beaten, the depth of dewatering well 5 is from top of the slope to every 4 bottom level of level-one step plane.Seepy material is clogged in dewatering well 5
9, seepy material 9 is gravel or coarse sand.The level of ground water of infiltration roadbed 1 is reduced by dewatering well 5, and is adopted at the top of dewatering well 5
5 top opening of dewatering well is sealed with plain concrete or clay 10.Each 5 bottom of dewatering well is respectively connected with drainpipe 7, in dewatering well 5
Water leans on the gutter 8 of side slope side to be discharged outside side slope by the intercepting ditch 6 or infiltration roadbed 1 being located on step plane 4.It is applied in side slope
Lowering of watertable during work and operation, it is advantageous to change seepage water pressure direction Slope Stability.
Connection with figures illustrates construction method of the invention below:
A, before infiltration roadbed 1 excavates, some dewatering wells 5 are beaten in top of the slope, and use pumping equipment by the underground water in dewatering well 5
Extraction, until stability of groundwater level.Seepy material 9 is clogged in dewatering well 5, seepy material 9 can use gravel or coarse sand, and
Plain concrete or clay 10 is used to block at the top of dewatering well 5 as sealant.
B, most upper level side slope is excavated to step plane 4, is carried out face of slope 3 and is protected, bores in 3 appropriate location of face of slope
Hole, and the drainpipe 7 that laying is enclosed with geotextiles 12 in hole is connected to dewatering well 5.
C, intercepting ditch 6 is built in step plane 4, by the water ejectment in drainpipe 7 to intercepting ditch 6, completes most upper level side
Slope drainage system.Successively next stage side slope is excavated until completing the drainage system of entire side slope.
Cut subgrade side slope section of the present invention suitable for seep water serious or side slope internal drainage difficulty.By being beaten in side slope top of the slope
If dewatering well, the level of ground water in side slope is reduced, and water is collected in dewatering well, side slope is discharged by drainpipe, improve side slope
The shearing strength of geology.The water inside side slope is permeated into dewatering well simultaneously, changes the direction of seepage water pressure, Slope Stability
Property is advantageous；Dewatering well lowering of watertable is set before slope excavating, improves excavation condition, is prevented in work progress due to seeping
Water leads to slope failure；After infiltration is pooled to dewatering well in side slope, side slope body keeps relatively dry, is conducive to side slope protection；Draining
Pipe connects with dewatering well excludes rainwater in time, can effectively prevent rainy season SEA LEVEL VARIATION, impeded drainage leads to slope instability.
Claims (7)
1. a kind of construction method for the roadbed slope drainage system that seeps water, it is characterised in that: this method is by the side slope of base side side
It is trimmed to staircase-like inclination slope surface, and in top of the slope dewatering well, changes direction and the level of ground water of seepage water pressure by dewatering well；
Precipitation bottom is connect by drainpipe with the intercepting ditch of every grade of step plane, and the water in dewatering well is discharged by intercepting ditch；From
And increase the stability of side slope, with the construction and traffic safety of the roadbed that ensures to seep water.
2. the construction method for the roadbed slope drainage system that seeps water according to claim 1, it is characterised in that: every grade of step
Plane is equipped with dewatering well, and precipitation bottom is connect by drainpipe with the intercepting ditch of next stage step plane.
3. the construction method for the roadbed slope drainage system that seeps water according to claim 2, it is characterised in that: the infiltration roadbed
It is equipped with gutter by side slope side, gutter is connect by drainpipe with the precipitation bottom of upper level step plane.
4. a kind of structure of the infiltration roadbed slope drainage system constituted by either method described in claims 1 to 3, including be located at
The side slope (2) of infiltration roadbed (1) side；It is characterized by: side slope (2) is staircase-like inclination slope surface (3)；At the top of side slope (2) and
Every grade of step plane (4) is equipped with one group of dewatering well (5), and every grade of step plane (4) is equipped with intercepting ditch (6)；Intercepting ditch (6) warp
Drainpipe (7) is connect with upper level dewatering well (5) bottom；Infiltration roadbed (1) is equipped with gutter (8) by side slope (2) side, gutter
(8) it is connect through drainpipe (7) with upper level dewatering well (5) bottom.
5. the structure for the roadbed slope drainage system that seeps water according to claim 4, it is characterised in that: in the dewatering well (5)
Filled with seepy material (9), dewatering well (5) top opening is sealed using plain concrete or clay (10).
6. the structure for the roadbed slope drainage system that seeps water according to claim 4, it is characterised in that: the drainpipe (7) is inclined
Tiltedly setting, one end that drainpipe (7) is connect with dewatering well (5) bottom are higher than the other end.
7. the structure for the roadbed slope drainage system that seeps water according to claim 4, it is characterised in that: the drainpipe (7)
It is evenly equipped on tube wall permeable hole (11), drainpipe (7) is wrapped with geotextiles (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329900.3A CN109930613A (en) | 2019-04-23 | 2019-04-23 | A kind of construction method and structure of the roadbed slope drainage system that seeps water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329900.3A CN109930613A (en) | 2019-04-23 | 2019-04-23 | A kind of construction method and structure of the roadbed slope drainage system that seeps water |
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| Publication Number | Publication Date |
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| CN109930613A true CN109930613A (en) | 2019-06-25 |
Family
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| CN201910329900.3A Pending CN109930613A (en) | 2019-04-23 | 2019-04-23 | A kind of construction method and structure of the roadbed slope drainage system that seeps water |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997163A (en) * | 2020-08-07 | 2020-11-27 | 长江勘测规划设计研究有限责任公司 | Embankment-road integrated engineering cable trench drainage structure and drainage method thereof |
| CN113073655A (en) * | 2021-04-13 | 2021-07-06 | 湖南映晟交通建设工程有限公司 | Construction method for roadbed foundation pit in deep and soft soil layer |
| CN113756349A (en) * | 2021-09-18 | 2021-12-07 | 宁波同三建设集团有限公司 | Foundation pit drainage structure and construction method thereof |
| CN114837207A (en) * | 2022-05-13 | 2022-08-02 | 北京城建集团有限责任公司 | Foundation pit dewatering structure and method |
| CN117107792A (en) * | 2023-10-20 | 2023-11-24 | 水利部交通运输部国家能源局南京水利科学研究院 | Combined drainage slope protection system for deep-excavation square expansion soil canal slope and integrated construction method |
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| 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 |
| CN109083162A (en) * | 2018-08-21 | 2018-12-25 | 中国十七冶集团有限公司 | A kind of infiltration Reinforcing High Slope ejectment system and construction method |
| CN210002425U (en) * | 2019-04-23 | 2020-01-31 | 中国电建集团贵阳勘测设计研究院有限公司 | structure of seepage roadbed side slope drainage system |
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Patent Citations (5)
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| JP2001089223A (en) * | 1999-09-22 | 2001-04-03 | Taihei Kogyo Co Ltd | Roadbed material and roadbed structure excellent in strength and water permeability |
| CN202170502U (en) * | 2011-07-05 | 2012-03-21 | 长沙理工大学 | Soil cut slope drainage system |
| 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 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997163A (en) * | 2020-08-07 | 2020-11-27 | 长江勘测规划设计研究有限责任公司 | Embankment-road integrated engineering cable trench drainage structure and drainage method thereof |
| CN113073655A (en) * | 2021-04-13 | 2021-07-06 | 湖南映晟交通建设工程有限公司 | Construction method for roadbed foundation pit in deep and soft soil layer |
| CN113073655B (en) * | 2021-04-13 | 2022-10-25 | 湖南映晟交通建设工程有限公司 | Construction method for roadbed foundation pit in deep and soft soil layer |
| CN113756349A (en) * | 2021-09-18 | 2021-12-07 | 宁波同三建设集团有限公司 | Foundation pit drainage structure and construction method thereof |
| CN113756349B (en) * | 2021-09-18 | 2022-07-05 | 宁波同三建设集团有限公司 | Foundation pit drainage structure and construction method thereof |
| CN114837207A (en) * | 2022-05-13 | 2022-08-02 | 北京城建集团有限责任公司 | Foundation pit dewatering structure and method |
| CN117107792A (en) * | 2023-10-20 | 2023-11-24 | 水利部交通运输部国家能源局南京水利科学研究院 | Combined drainage slope protection system for deep-excavation square expansion soil canal slope and integrated construction method |
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