CN206204970U - A kind of high fill foundation weeper drain - Google Patents
A kind of high fill foundation weeper drain Download PDFInfo
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- CN206204970U CN206204970U CN201621291006.XU CN201621291006U CN206204970U CN 206204970 U CN206204970 U CN 206204970U CN 201621291006 U CN201621291006 U CN 201621291006U CN 206204970 U CN206204970 U CN 206204970U
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Abstract
A kind of high fill foundation weeper drain, including longitudinal drainage french drain（10）With transverse drainage french drain（11）, vertically and horizontally weeper drain is interlaced is distributed in groined type, constitutes weeper drain net, and weeper drain structure is by plain fill layer（2）, geotextiles（3）, flexible porous tube（4）, the first granule rock layers（5）, cobble rock layers（6）, the second granule rock layers（7）, GSZ（8）Composition；From the spring on ground top layer（12）Place starts along water (flow) direction（13）Rhone with bell shape and the default gradient, the plain fill layer of draining trench bottom laying preset thickness are set（2）, plain fill layer（2）On lay geotextiles successively（3）, the first granule rock layers（5）, cobble rock layers（6）, the second granule rock layers（7）, GSZ（8）, wherein the first granule rock layers（5）Interior placement flexible porous tube（4）.
Description
Technical field
The utility model is related to high fill foundation treatment technology in civil engineering, and in particular to high fill foundation weeper drain
Construction technology.
Background technology
In recent years, quickly propelling with Development of China's Urbanization, western China combines its own geographical, lineament,
Hills gully area using cut mountain make ground by the way of expand town site, thereby produce substantial amounts of high fill foundation work
Journey.However, high fill foundation groundwater treatment still accumulates the stage in Initial experience, its design and construction depend on engineer more
Micro-judgment, blindness is difficult to avoid that；By a large amount of engineering practices, engineering, its big thickness are processed for high fill foundation
Degree embankment certainly will change the vent path of original underground water, and underground water rises or falls the notable work that will cause filling body
Sedimentation or uneven relative settlement afterwards, the safe handling of construction of structures, will trigger filling body to come down on influence ground when serious,
Cause huge life and property loss.It is also high roadbed ground so groundwater treatment is always to perplex a great problem of engineering staff
Can focus of interest in base engineering construction, effectively solve the key point that problem of groundwater is high roadbed construction project；Face
To gradually increasing for high fill foundation engineering, problem of groundwater has great importance in properly handling high fill foundation.
At present, high roadbed engineering is increasing, and the problem of groundwater in high fill foundation never has and rationally solved,
Conventional drainage pattern mainly has french drain, drainpipe, horizontal row water layer and a pipe culvert, wherein blind drainage because its is with low cost, apply
Work is easy and be used widely, but conventional drainage french drain generally wraps up block stone layer using non-woven geotextile, its structure is excessively
It is simple and drainage effect is not obvious, particularly with the high fill foundation with multiple infiltration springs, it is difficult between each weeper drain
Realize co-ordination.
The content of the invention
The purpose of this utility model is to provide a kind of high fill foundation weeper drain.
The utility model is a kind of high fill foundation weeper drain, as shown in Figure 1 and Figure 2, including the He of longitudinal drainage french drain 10
Transverse drainage french drain 11, vertically and horizontally weeper drain is interlaced is distributed in groined type, constitutes weeper drain net；Weeper drain structure
By plain fill layer 2, geotextiles 3, flexible porous tube 4, the first granule rock layers 5, cobble rock layers 6, the second granule rock layers 7, Tu Gongge
Grid 8 are constituted；Row with bell shape and the default gradient is set at the spring 12 on ground top layer along water (flow) direction 13
Tank, the plain fill layer 2 of draining trench bottom laying preset thickness, geotextiles 3, the first bird's-eye gravel are laid on plain fill layer 2 successively
Layer 5, cobble rock layers 6, the second granule rock layers 7, GSZ 8, wherein laying flexible porous tube 4 in the first granule rock layers 5.
The beneficial effects of the utility model are：1. each can be coordinated using weeper drain net vertically and horizontally staggeredly longitudinally to arrange
Water french drain and transverse drainage french drain, for the discharge effect is significant of whole embankment local ground watering；2. it is vertical with certain ratio of slope
Transverse drainage french drain can realize the gravity flow discharge of underground water；3. there are ponding wetland and spring to appear on ground top layer to locate to expand draining
French drain area of section, makes it be in bell shape, water outlet source can be included in weeper drain as far as possible；4. geotextiles bag
In wrapping up in each gravel layer and can effectively preventing weeper drain periphery soil particle from falling into gravel layer, it is to avoid weeper drain is blocked, influence
It is normally used；5. the use of two-layer granule rock layers causes that whole weeper drain reasonable stress, compressive resistance are greatly enhanced, it is ensured that
The safe handling of weeper drain；6. drain-hose has anti-pressure ability very high, is arranged in weeper drain bottom first layer thin
In gravel, the problem of granule rock layers drainability difference can be compensate for, play assisted drainage function, advantageously having in underground water
Effect discharge；7. GSZ is arranged in geotextiles, and it is blind also to strengthen whole draining while protecting geotextiles against damages
The compression strength of ditch；8. the utility model step is simple, each operation is reasonable, easily operated and safe and feasible, is shortening the duration
Cost is saved again simultaneously, practical value is high, the large-scale popularization application preferably in high fill foundation engineering.
Brief description of the drawings
Fig. 1 is weeper drain schematic cross-section, and Fig. 2 is vertically and horizontally weeper drain schematic diagram；Reference and correspondence title
For：Former foundation soil 1, plain fill layer 2, geotextiles 3, flexible porous tube 4, ground floor granule rock layers 5, cobble rock layers 6, the second layer is thin
Gravel layer 7, GSZ 8, back-filling in layers soil 9, longitudinal drainage french drain 10, transverse drainage french drain 11, spring 12, water (flow) direction
13。
Specific embodiment
The utility model is a kind of high fill foundation weeper drain, as shown in Figure 1 and Figure 2, including the He of longitudinal drainage french drain 10
Transverse drainage french drain 11, vertically and horizontally weeper drain is interlaced is distributed in groined type, constitutes weeper drain net；Weeper drain structure
By plain fill layer 2, geotextiles 3, flexible porous tube 4, the first granule rock layers 5, cobble rock layers 6, the second granule rock layers 7, Tu Gongge
Grid 8 are constituted；Row with bell shape and the default gradient is set at the spring 12 on ground top layer along water (flow) direction 13
Tank, the plain fill layer 2 of draining trench bottom laying preset thickness, geotextiles 3, the first bird's-eye gravel are laid on plain fill layer 2 successively
Layer 5, cobble rock layers 6, the second granule rock layers 7, GSZ 8, wherein laying flexible porous tube 4 in the first granule rock layers 5.
As shown in Fig. 2 the bell shape weeper drain is appeared place, the left and right Ge Yan centered on spring 12 in spring
Stretch that 6m ~ 8m is wide, and the weeper drain end for gradually forming reduced width to 4m along water (flow) direction 13.
As shown in Fig. 2 the longitudinal drainage french drain 10 to extend to embankment along water (flow) direction 13 by spring 12 external
Edge, the gradient is not less than 0.2%, and spacing is 50m ~ 100m；The transverse drainage french drain 11 is axial direction two with longitudinal drainage french drain 10
Lateral sulcus bottom absolute altitude is gradually increasing, and the gradient is not less than 0.2%, and spacing is 50m ~ 100m.
As shown in figure 1, plain fill 2 laying depth of layer are 0.1m ~ 0.15m；The specification of geotextiles 3 is 200g/m2~400g/
m2；Diameter 50mm ~ the 200mm of flexible porous tube 4, spacing is 0.5m ~ 1m；The laying depth of the first granule rock layers 5 be 0.5m ~
0.6m, particle diameter is 10mm ~ 30mm；The laying depth of the cobble rock layers 6 is 1m ~ 1.2m, and particle diameter is 50mm ~ 100mm；Described
The laying depth of two granule rock layers 7 is 0.5m ~ 0.6m, and particle diameter is 10mm ~ 30mm；The grid spacing of the GSZ 8 is little
In 0.4m × 0.4m.
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Gansu Province's south of Gansu Province is located at the mountains low-to-middle in height of the multiple south of Gansu Province Cheng County Lip river west of a river side of geological disaster into state civil airport engineering
Hills area, place engineering geological condition is complicated, and building place particularly airstrips area part is located at excavation zone, partly positioned at filling out
Square area, maximum Depth of filled soil reaches 63m；On-site rich groundwater, buried depth 0.70m ~ 11.00m, category the 4th is that loose class hole is dived
Water, is distributed at the runway ridge both sides low-lying place of cheuch.In view of the construction of large area high roadbed engineering can cause on-site ground
The change of lower water environment, will trigger the notable differential settlement of ground even to come down when serious, to avoid producing new disaster, need
On-site underground water is processed before fill construction, that is, is built a plurality of vertically and horizontally weeper drain and is formed weeper drain net by field
Underground water is effectively discharged in area.
As shown in Figure 1 and Figure 2, the weeper drain includes longitudinal drainage french drain 10 and transverse drainage french drain 11, vertically and horizontally draining
French drain is interlaced to be distributed in groined type, and composition weeper drain net carries out systematization discharge to underground water in whole embankment region；
Weeper drain structure is main by plain fill layer 2, geotextiles 3, flexible porous tube 4, the first granule rock layers 5, cobble rock layers 6, second
Granule rock layers 7, GSZ 8 are constituted；Being set along water (flow) direction 13 at the ground top layer spring 12 has horn mouth and slope
The rhone of degree, draining trench bottom laying plain fill layer 2 causes that draining trench bottom is smooth, and geotechnique is laid successively on plain fill layer 2
Cloth 3, the first granule rock layers 5, cobble rock layers 6, the second granule rock layers 7, GSZ 8, wherein laying soft in the first granule rock layers 5
Formula water-permeable pipe 4, geotextiles 3 wrap up each gravel layer.
The horn mouth is appeared place in spring, and each 6m ~ 8m that extends in left and right is wide centered on spring 12, and along water (flow) direction
The 13 weeper drain ends for gradually forming reduced width to 4m；The longitudinal drainage french drain 10 is by spring 12 along current
Direction 13 extends to embankment outer rim, and ratio of slope is no less than 0.2%, and spacing is 50m ~ 100m, and transverse drainage french drain 11 is with longitudinal direction
Weeper drain 10 is that axial both sides bottom of trench absolute altitude is gradually increasing, and current in transverse drainage french drain 11 can be imported into longitudinal drainage french drain
10, its ratio of slope is no less than 0.2%, and spacing is 50m ~ 100m；The plain fill layer 2 laying depth 0.1m ~ 0.15m；The geotechnique
Cloth 3 uses 200g/m2~400g/m2；The diameter 50mm of the flexible porous tube 4 ~ 200mm, spacing 0.5m ~ 1m；The ground floor is thin
The laying depth 0.5m of gravel layer 5 ~ 0.6m, particle diameter 10mm ~ 30mm；The laying depth 1m of the cobble rock layers 6 ~ 1.2m, particle diameter 50mm ~
100mm；The laying depth 0.5m of the second layer granule rock layers 7 ~ 0.6m, particle diameter 10mm ~ 30mm；The grid of the GSZ 8
Spacing is not more than 0.4m × 0.4m.
It should be noted that the present embodiment is served only for explaining the utility model, not for limitation model of the present utility model
Enclose, it is all within the utility model spirit and principle, it is impossible to depart from any modification or equally replace that the utility model objective made
Change and should be included in the utility model scope of the claimed protection.
Claims (4)
1. a kind of high fill foundation weeper drain, including longitudinal drainage french drain（10）With transverse drainage french drain（11）, vertically and horizontally arrange
Water french drain is interlaced to be distributed in groined type, constitutes weeper drain net, it is characterised in that weeper drain structure is by plain fill layer
（2）, geotextiles（3）, flexible porous tube（4）, the first granule rock layers（5）, cobble rock layers（6）, the second granule rock layers（7）, geotechnique
Grid（8）Composition；From the spring on ground top layer（12）Place starts along water (flow) direction（13）Setting has bell shape and presets
The rhone of the gradient, the plain fill layer of draining trench bottom laying preset thickness（2）, plain fill layer（2）On lay geotextiles successively
（3）, the first granule rock layers（5）, cobble rock layers（6）, the second granule rock layers（7）, GSZ（8）, wherein the first granule rock layers
（5）Interior placement flexible porous tube（4）.
2. high fill foundation weeper drain according to claim 1, it is characterised in that：The bell shape weeper drain
It is to be appeared place in spring, with spring（12）Centered on each 6m ~ 8m that extends in left and right it is wide, and along water (flow) direction（13）Gradually width is contracted
The weeper drain end that as low as 4m is formed.
3. high fill foundation weeper drain according to claim 1, it is characterised in that：The longitudinal drainage french drain（10）By
Spring（12）Place starts along water (flow) direction（13）Embankment outer rim is extended to, the gradient is not less than 0.2%, and spacing is 50m ~ 100m；
The transverse drainage french drain（11）With longitudinal drainage french drain（10）For axial both sides bottom of trench absolute altitude is gradually increasing, the gradient is not less than
0.2%, spacing is 50m ~ 100m.
4. high fill foundation weeper drain according to claim 1, it is characterised in that：Plain fill layer（2）Laying depth is
0.1m~0.15m；Geotextiles（3）Specification be 200g/m2~400g/m2；Flexible porous tube（4）Diameter 50mm ~ 200mm, spacing
It is 0.5m ~ 1m；First granule rock layers（5）Laying depth be 0.5m ~ 0.6m, particle diameter be 10mm ~ 30mm；The cobble rock layers
（6）Laying depth be 1m ~ 1.2m, particle diameter be 50mm ~ 100mm；The second granule rock layers（7）Laying depth for 0.5m ~
0.6m, particle diameter is 10mm ~ 30mm；The GSZ（8）Grid spacing be not more than 0.4m × 0.4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291006.XU CN206204970U (en) | 2016-11-29 | 2016-11-29 | A kind of high fill foundation weeper drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291006.XU CN206204970U (en) | 2016-11-29 | 2016-11-29 | A kind of high fill foundation weeper drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206204970U true CN206204970U (en) | 2017-05-31 |
Family
ID=58748084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621291006.XU Active CN206204970U (en) | 2016-11-29 | 2016-11-29 | A kind of high fill foundation weeper drain |
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| CN (1) | CN206204970U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178043A (en) * | 2017-06-05 | 2017-09-19 | 长沙理工大学 | A kind of coarse-grained soil high-fill roadbed discharge structure and its construction technology |
| CN111636408A (en) * | 2020-04-24 | 2020-09-08 | 山东大学 | System and method for keeping smooth drainage of filled foundation in gully site |
-
2016
- 2016-11-29 CN CN201621291006.XU patent/CN206204970U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178043A (en) * | 2017-06-05 | 2017-09-19 | 长沙理工大学 | A kind of coarse-grained soil high-fill roadbed discharge structure and its construction technology |
| CN111636408A (en) * | 2020-04-24 | 2020-09-08 | 山东大学 | System and method for keeping smooth drainage of filled foundation in gully site |
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