CN207347862U - A kind of subgrade in swelling soil zone supporting and retaining system subtracts swollen structure - Google Patents
A kind of subgrade in swelling soil zone supporting and retaining system subtracts swollen structure Download PDFInfo
- Publication number
- CN207347862U CN207347862U CN201720947329.8U CN201720947329U CN207347862U CN 207347862 U CN207347862 U CN 207347862U CN 201720947329 U CN201720947329 U CN 201720947329U CN 207347862 U CN207347862 U CN 207347862U
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- Prior art keywords
- swollen
- lateral sulcus
- drainage
- subtract
- drainage blanket
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- 239000002689 soil Substances 0.000 title claims abstract description 23
- 230000008961 swelling Effects 0.000 title claims abstract description 15
- 210000000481 breast Anatomy 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 239000000806 elastomer Substances 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 3
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000004746 geotextile Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 33
- 238000010276 construction Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 15
- -1 polypropylene Polymers 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Subtract swollen structure the utility model discloses a kind of subgrade in swelling soil zone supporting and retaining system, subgrade support retainer, which subtracts swollen structure, to be included lateral sulcus, lateral sulcus platform, loaded filter, subtract swollen drainage blanket, breast boards, plate top concrete platform, spilled water hole；Lateral sulcus is U-shaped lateral sulcus, and lateral sulcus edge level is equipped with lateral sulcus platform；Loaded filter, subtract swollen drainage blanket, breast boards vertically be arranged on lateral sulcus platform on, and it is arranged on the outside of swelled ground (rock) body from inside to outside successively, plate top concrete platform casting on flat is in subtracting on swollen drainage blanket, loaded filter and swelled ground (rock) body；It is flexible elastomer to subtract swollen drainage blanket, it is described to subtract swollen drainage blanket and include drainage network sandwich layer and permeable net bed course, the drainage network sandwich layer is elastic waveform net structure, and the permeable net bed course is resilient three-dimensional net structure, and the permeable net bed course is compound in the both sides of waveform drainage network sandwich layer.The utility model takes into account drain function at the same time, subtracts swollen effect significantly, and drainage effect is good, and construction is convenient, easy to control the quality.
Description
Technical field
Roadbed Geotechnical Engineering field is the utility model is related to, more particularly to one kind subtracts swollen effect significantly, drainage effect
Good, construction is convenient, and swelled ground (rock) subgrade support retainer easy to control the quality subtracts swollen structure.
Background technology
Swelled ground (rock) is very extensive in China's distribution, due to swelled ground (rock) have water swelling, dehydration shrinkage cracking,
The characteristics such as repeated expansion and shrinkage deformation, the decay of immersion bearing capacity, desiccation crack development, easily cause retaining structure to destroy, side slope cracking
Inundated intenerating, and then occur that subgrade settlement, bedding are risen soil, the disease such as collapse, cave in, coming down is slipped in slope erosion, seriously affect
Road is passed through safety, causes hundreds of millions of economic losses every year.The engineering project route selection such as railway, highway, although as far as possible pass round and
Optimization design, still difficulty avoid the occurrence of swelled ground (rock) cutting, and cutting slope foot is prevented frequently with retaining wall, pile plate wall progress supporting and retaining system at present
Shield.When retaining wall, pile plate wall structure design, since swelled ground (rock) mechanical strength index is low, engineering properties is poor, and absorbs water and produce
Expansive force it is big, therefore the obtained earth-retaining wall thickness of inspection is big, anchors that stake body section is big, and stake is long, causes retaining structure
Bricklaying is big, causes the regional construction investment of swelled ground (rock) larger.
The packed sand gravel loaded filter of retaining structure wall back of the body anti-filter draining is presently used for, because building construction using code, particularly
When retaining wall is higher, construction is extremely difficult, and lacks reliable quality inspection standard, causes loaded filter construction quality poor,
Wall carries on the back impeded drainage, or even there is the phenomenon that sand gravel is served as with soil, does not play expected draining purpose, easily causes supporting and retaining system
The destruction of engineering.
In conclusion the characteristic deformed according to swelled ground water swelling, dehydration shrinkage cracking, repeated expansion and shrinkage, there is an urgent need to
It is a kind of can cut down expansive force suffered by retaining structure, have subtract swollen and drain function, low engineering cost, construction are convenient and can
Ensure that construction quality and the subgrade in swelling soil zone supporting and retaining system of safety subtract swollen structure.
The content of the invention
The utility model is in view of the above shortcomings of the prior art, there is provided a kind of swelled ground (rock) subgrade support retainer subtracts swollen knot
Structure, it, which is used, subtracts swollen structure and has taken into account drain function, and it is geosynthetics to subtract swollen layer, has flexible resilient structure, swollen
Expansive force effect is lower can to occur certain elastic deformation, adapt to the expansion repeatedly and contraction distortion of swelled ground (rock), largely
Cut down influence of the expansive force to retaining structure, it subtracts, and swollen effect is notable, and hydraulic conductivity is high, and anti-filter effect is good, convenient, matter of constructing
Measure easily-controllable.
To solve problems of the prior art, the concrete technical scheme of use is：
A kind of swelled ground (rock) subgrade support retainer subtracts swollen structure, it include lateral sulcus, lateral sulcus platform, loaded filter, subtract swollen drainage blanket,
Breast boards, plate top concrete platform, spilled water hole；The lateral sulcus is U-shaped lateral sulcus, and one side of lateral sulcus is connected with road surface, lateral sulcus it is another
While being horizontally disposed lateral sulcus platform, the flat edge of table of lateral sulcus is connected with swelled ground (rock) body；The loaded filter, subtract swollen draining
Layer, breast boards vertically be arranged on lateral sulcus platform on, and the loaded filter, subtract swollen drainage blanket, breast boards is sequentially arranged in from inside to outside
The outside of swelled ground (rock) body, the plate top concrete platform casting on flat is in subtracting swollen drainage blanket, loaded filter and swelled ground (rock)
On body；It is described that to subtract swollen drainage blanket be flexible resilient structure.
Preferable scheme, the loaded filter can be sand gravel loaded filter, or polypropylene or polyester geotex-tile are anti-
Filtering layer.When for sand gravel loaded filter when, the loaded filter and subtract the layering of swollen drainage blanket and set；When for pp geo textiles loaded filter
When, compound be wrapped in of the loaded filter subtracts outside swollen drainage blanket.
Further preferred scheme, described to subtract swollen drainage blanket be the geotechnique that raw material are polypropylene, polyethylene or polyamide
Layer of composite material.
Scheme still more preferably, it is described to subtract swollen drainage blanket and include drainage network sandwich layer and permeable net bed course, the draining
Steel wire rack layer is with certain thickness elastic waveform net structure, is formed through particular process fabrication, the permeable net bed course
For tridimensional network, hole is big, has certain elasticity, and the permeable net bed course is compound in the two of waveform drainage network sandwich layer
Side.
The spilled water hole is multiple, is distributed on breast boards.
The raw material of the drainage network sandwich layer and permeable net bed course are in the high molecular polymer of geosynthetics
One kind.
Scheme still further preferably, the thickness for subtracting swollen drainage blanket are 2~20cm, the elasticity for subtracting swollen drainage blanket
Modulus is 0.05~0.5MPa.The elasticity modulus and thickness for subtracting swollen drainage blanket can be according to the expansion power characteristics of swelled ground (rock)
It is adjusted.
Subtracting swollen drainage blanket has a larger drainage space, porosity of=65%, and drainage effect is good.
A kind of swelled ground of the utility model (rock) subgrade support retainer subtracts the construction method of swollen structure, its construction procedure is：
S1, after the completion for the treatment of cutting earthwork evacuation and anchoring pile driving construction, apply lateral sulcus；
S2, apply lateral sulcus platform and plate base concrete is levelling；
S3 and then lifting breast boards, side installation breast boards, side, which is laid with, subtracts swollen drainage blanket and loaded filter；
S4, construction plate top concrete platform.
By using such scheme, a kind of swelled ground (rock) subgrade support retainer of the utility model subtracts swollen structure and the prior art
Compare, it has technical effect that：
(1), the utility model is equipped between retaining structure and swelled ground (rock) body subtracts swollen drainage blanket, and subtracts swollen drainage blanket
For flexible elastomer, certain elastic deformation can occur under expansive force effect, should when swelled ground (rock) water suction expands
Structure sheaf is acted on by expansive force occurs elasticity of compression deformation, and due to generating certain deformation, expansive force is effectively cut down；With
Swelled ground (rock) dehydration shrinkage cracks, and expansive force diminishes, which, which followed by, is resiliently deformed, the structure sheaf all the time with it is swollen
Swollen soil (rock) keeps being in close contact, and avoids the wall back of the body and large fracture occurred and caused wall top platform to crack, avoids under surface water
Ooze, retaining structure is more stablized.
(2), it is described to subtract swollen drainage blanket and be combined by waveform drainage network sandwich layer and permeable net bed course, due to drainage network sandwich layer
It is elastomer with permeable net bed course, therefore, it is a good flexible elastomer to subtract swollen drainage blanket, can preferably adapt to expand
The expansion and contraction of soil.
(3), it is high to subtract swollen draining layer porosity, drainage effect is good.
(4), by setting retaining structure to subtract swollen layer, the expansive force that retaining structure is born is reduced, adds retaining structure
Stability, compensate for vacancy of the retaining structure in terms of swollen construction is subtracted, the work of the regional retaining structure of swelled ground (rock) can be reduced
Journey cost, has wide popularizing application prospect.
(5), described to subtract swollen drainage blanket be geosynthetics, and subtracting swollen drainage blanket can get ready in advance, accelerate construction speed,
Construction time, and its system easy to control the quality are shortened, and can preferably play reinforcement and protect the effect of the soil body.
(6), different thickness and elasticity modulus can be used according to the strong and weak characteristic of expansion of swelled ground (rock) by subtracting swollen drainage blanket,
It is easy for construction, to subtract swollen drainage performance good using flexible.
(7), the utility model is equipped with loaded filter, and loaded filter can be separately provided, and can also be compound in and subtract on swollen drainage blanket, instead
When filtering layer can guarantee that infiltration water outflow, band does not walk the soil in dyke (dam) or ground, so as to prevent the generation of stream soil, realizes branch
Gear structure subtracts swollen, draining and anti-filter function.
(8), the utility model is ensureing to subtract on the premise of swollen effect is good, drainage performance is good, anti-filter is good, its construction is just
It is prompt, easy to control the quality, it can ensure construction quality and safety.
Brief description of the drawings
Fig. 1 is the overall structure diagram that a kind of swelled ground of the utility model (rock) subgrade support retainer subtracts swollen structure；
Fig. 2 subtracts the I-I profiles in Fig. 1 of swollen structure for a kind of swelled ground of the utility model (rock) subgrade support retainer.
In figure mark for：1st, swollen drainage blanket is subtracted；2nd, loaded filter；3rd, breast boards；4th, plate top concrete platform；5th, lateral sulcus is put down
Platform；6th, lateral sulcus；7th, spilled water hole；8th, drainage network sandwich layer；9th, permeable net bed course.
Embodiment
To make the objectives, technical solutions and advantages of the present invention clearer, with reference to instantiation and join
According to attached drawing, the utility model is further described.It should be understood that these descriptions are merely illustrative, and it is not intended to limit
The scope of the utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessary
Obscure the concept of the utility model in ground.
A kind of swelled ground (rock) subgrade support retainer subtracts swollen structure, its overall structure as shown in Figure 1, it include lateral sulcus 6, lateral sulcus is put down
Platform 5, loaded filter 2, subtract swollen drainage blanket 1, breast boards 3, plate top concrete platform 4.
The lateral sulcus 6 is U-shaped lateral sulcus, and one side of lateral sulcus 6 is connected with road surface, and the another side of lateral sulcus 6 is horizontally disposed side
Ditch platform 5, the edge of lateral sulcus platform 5 are connected with swelled ground (rock) body.
The loaded filter 2, subtract swollen drainage blanket 1, breast boards 3 and be arranged on vertically on lateral sulcus platform 5, and the loaded filter 2, subtracts
Swollen drainage blanket 1, breast boards 3 are sequentially arranged in the outside of swelled ground (rock) body from inside to outside, and concrete platform 4 level in the plate top is poured
Note in subtracting on swollen drainage blanket 1, loaded filter 2 and swelled ground (rock) body.
The structure for subtracting swollen drainage blanket 1 is as shown in Fig. 2, be the sectional view for subtracting swollen drainage blanket 1 at I-I.It is described to subtract swollen row
The raw material of water layer 1 are polypropylene, polyethylene or polyamide, have a flexible resilient structure, its thickness is 2~20cm, springform
Measure as 0.05~0.5MPa, porosity of=65%.It is described to subtract swollen drainage blanket 1 and include drainage network sandwich layer 8 and permeable net bed course 9, institute
It is with certain thickness elastic waveform net structure to state drainage network sandwich layer 8, is formed through particular process fabrication, described permeable
Gauze pad layer 9 is tridimensional network, and hole is big, has certain elasticity, and the permeable net bed course 9 is compound in waveform drainage network
The both sides of sandwich layer 8, the breast boards 3 are equipped with multiple spilled water holes 7 for draining.The drainage network sandwich layer 8 and permeable gauze pad
The raw material of layer 9 are one kind in the high molecular polymer of geosynthetics.It is flexible elastomer to subtract swollen drainage blanket 1,
Certain elastic deformation can occur under expansive force effect, when swelled ground (rock) water suction expands, which is expanded
Elasticity of compression deformation occurs for power effect, due to generating certain deformation, expansive force is effectively cut down；With swelled ground
(rock) dehydration shrinkage cracks, and expansive force diminishes, which, which followed by, is resiliently deformed, the structure sheaf all the time with swelled ground
(rock) keeps being in close contact, and avoids the wall back of the body and large fracture occurred and caused wall top platform to crack, avoids and oozed under surface water, made
Retaining structure is more stablized.
Wherein, the loaded filter 2 and subtracting can be separately provided between swollen drainage blanket 1, can also be compound by the loaded filter 2
In subtracting on swollen drainage blanket 1.When loaded filter 2 is gravel stone structure, loaded filter 2 and subtracts to be layered between swollen drainage blanket 1 and individually set
Put, when loaded filter 2 is polypropylene or polyester geotex-tile loaded filter, compound be wrapped in of loaded filter 2 subtracts outside swollen drainage blanket 1.
The construction procedure that a kind of swelled ground of the utility model (rock) subgrade support retainer subtracts swollen structure is：Treat cutting earthwork evacuation
And after the completion of anchoring pile driving construction, it is levelling to apply lateral sulcus 6, construction lateral sulcus platform 5 and plate base concrete, then lifts breast boards 3, side
Breast boards 3 is installed, side, which is laid with, subtracts swollen drainage blanket 1 and loaded filter 2, plate top concrete platform 4 of finally constructing.
The above is only the preferred embodiment of the utility model only, the protection model being not intended to limit the utility model
Enclose, where within the spirit and principles of the present invention, any modification for being made, equivalent substitution, be all contained in the utility model
Protection domain within.
Claims (9)
1. a kind of subgrade in swelling soil zone supporting and retaining system subtracts swollen structure, it is characterised in that it includes lateral sulcus, lateral sulcus platform, loaded filter, subtracts swollen row
Water layer, breast boards, plate top concrete platform, spilled water hole；The lateral sulcus is U-shaped lateral sulcus, and one side of lateral sulcus is connected with road surface, lateral sulcus
Another side be horizontally disposed lateral sulcus platform, the flat edge of table of lateral sulcus is connected with the expansion soil body；The loaded filter, subtract swollen draining
Layer, breast boards vertically be arranged on lateral sulcus platform on, and the loaded filter, subtract swollen drainage blanket, breast boards is sequentially arranged in from inside to outside
Expand the soil body outside, the plate top concrete platform casting on flat in subtract swollen drainage blanket, loaded filter and expansion the soil body on；Institute
State that to subtract swollen drainage blanket be flexible elastomer.
2. a kind of subgrade in swelling soil zone supporting and retaining system according to claim 1 subtracts swollen structure, it is characterised in that：The loaded filter is sand
Gravel loaded filter, the loaded filter are set with subtracting swollen drainage blanket layering.
3. a kind of subgrade in swelling soil zone supporting and retaining system according to claim 1 subtracts swollen structure, it is characterised in that：The loaded filter is poly-
Propylene or polyester geotex-tile loaded filter, the loaded filter, which is compound in, to be subtracted outside swollen drainage blanket.
4. a kind of subgrade in swelling soil zone supporting and retaining system according to claim 1 subtracts swollen structure, it is characterised in that：It is described to subtract swollen drainage blanket
For geosynthetic layer.
5. a kind of subgrade in swelling soil zone supporting and retaining system according to claim 1 subtracts swollen structure, it is characterised in that：It is described to subtract swollen drainage blanket
Including drainage network sandwich layer and permeable net bed course, the drainage network sandwich layer is elastic waveform net structure, the permeable net bed course
For resilient three-dimensional net structure, the permeable net bed course is compound in the both sides of waveform drainage network sandwich layer.
6. a kind of subgrade in swelling soil zone supporting and retaining system according to claim 1 subtracts swollen structure, it is characterised in that：The spilled water hole is more
It is a, it is distributed on breast boards.
7. a kind of subgrade in swelling soil zone supporting and retaining system according to claim 1 subtracts swollen structure, it is characterised in that：It is described to subtract swollen drainage blanket
Thickness be 2~20cm.
8. a kind of subgrade in swelling soil zone supporting and retaining system according to claim 1 subtracts swollen structure, it is characterised in that：It is described to subtract swollen drainage blanket
Elasticity modulus be 0.05~0.5MPa.
9. a kind of subgrade in swelling soil zone supporting and retaining system according to claim 1 subtracts swollen structure, it is characterised in that：It is described to subtract swollen drainage blanket
Porosity of=65%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947329.8U CN207347862U (en) | 2017-08-01 | 2017-08-01 | A kind of subgrade in swelling soil zone supporting and retaining system subtracts swollen structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947329.8U CN207347862U (en) | 2017-08-01 | 2017-08-01 | A kind of subgrade in swelling soil zone supporting and retaining system subtracts swollen structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207347862U true CN207347862U (en) | 2018-05-11 |
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| CN201720947329.8U Expired - Fee Related CN207347862U (en) | 2017-08-01 | 2017-08-01 | A kind of subgrade in swelling soil zone supporting and retaining system subtracts swollen structure |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237230A (en) * | 2017-08-01 | 2017-10-10 | 四川睿铁科技有限责任公司 | A kind of swelled ground（Rock）Subgrade support retainer subtracts swollen structure and its construction method |
-
2017
- 2017-08-01 CN CN201720947329.8U patent/CN207347862U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237230A (en) * | 2017-08-01 | 2017-10-10 | 四川睿铁科技有限责任公司 | A kind of swelled ground（Rock）Subgrade support retainer subtracts swollen structure and its construction method |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 |