CN107142959A - A kind of geotechnical grid reinforcement foam concrete retaining wall fills structure and its method - Google Patents
A kind of geotechnical grid reinforcement foam concrete retaining wall fills structure and its method Download PDFInfo
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- CN107142959A CN107142959A CN201710407630.4A CN201710407630A CN107142959A CN 107142959 A CN107142959 A CN 107142959A CN 201710407630 A CN201710407630 A CN 201710407630A CN 107142959 A CN107142959 A CN 107142959A
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- geotechnical grid
- retaining wall
- foam concrete
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- geotechnical
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0208—Gabions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Structure and its method are filled the invention discloses a kind of foam concrete retaining wall in lightweight of utilization geotechnical grid reinforcement, is filled using high intensity geotechnical grid framing, then by foam concrete.In structure, lay geotechnical grid upwards step by step and pour foam concrete, every layer of geotechnical grid outside inside contracts to form certain slope, is successively fixed with the soil body.Construction method includes：Excavate, clear up and leveling ground；Tensioning, fixed bottom geotechnical grid, joints cement fly ash foam concrete；Arrange drainpipe；Upward successively tensioning, fixed geotechnical grid, pour foam concrete, to reaching required height.Overall structure lightweight of the present invention, it is low to ground requirement for bearing capacity, fixed by reinforcement step by step, connection integrity and retaining wall resistance to capsizing between enhancing retaining wall and the soil body, while ensureing strength of wall body.Foam concrete utilizes industrial residue flyash, and pouring construction is more convenient.It is applicable all kinds of roadbeds, cutting retaining wall, the especially less geological conditions of foundation bearing capacity.
Description
Technical field
The invention belongs to road engineering design and construction technical field, and in particular to a kind of geotechnical grid reinforcement foam coagulation
Native retaining wall in lightweight fills structure and its method.
Background technology
Retaining wall be for prevent the soil body collapse cunning build, be primarily subjected to the wall building of soil lateral pressure.In road
Supporting embankment filled soil or cut slope, and abutment, tunnel portal and river embankment etc. are widely used in engineering.Make by retaining wall
Classified with occasion, common are cutting barricade, embankment retaining wall, curb barricade, end of the bridge barricade etc..By the structure type point of retaining wall
Class, common are Gravity Retaining Wall, Cantilever Retaining Wall, thin wall-type barricade, reinforced earth bulkhead etc..Conventional gravity formula barricade is general
Using cemented rock or concrete masonry, consumptive material is more, higher to ground requirement for bearing capacity from great.General reinforcement earth-retaining
Wall then belongs to flexible structure thing, and barricade intensity itself is poor, is influenceed larger by filler and form of construction work, the later stage easily deforms
And damage.
Foam concrete, as a kind of new-type material, is, by physics, chemical mode, to introduce gases into concrete mortar
In, through maintenance, form the concrete product containing a large amount of tiny sealed porositys and with suitable intensity.With conventional concrete phase
Than, intensity is weaker, but with it is Lightness, self compacting ability is good for filling, good endurance the features such as, extensive utilization is to all kinds of civil engineerings
In engineering.Geotechnical grid is then a kind of with high intensity, the netted earth working material of powerful laterally limiting power.Geotechnical grid is used as one
Reinforcement material is planted, also extensive utilization is carried on the back in the work such as subgrade soils reinforcement to basement process, slope protection, platform.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of geotechnical grid reinforcement foam
Concrete light retaining wall fills structure and its method, and the technology takes full advantage of industrial residue flyash, solves existing heavy
The problem of power formula retaining wall is too high to ground requirement for bearing capacity, it is adaptable to which all kinds of roadbeds, cutting retaining wall, be particularly suitable for use in ground
The less geological conditions of bearing capacity.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of geotechnical grid reinforcement foam concrete retaining wall structure, if constructing general frame by dried layer geotechnical grid, institute
State joints cement-fly ash foam concrete in geotechnical grid；Inside contracted on the outside of every layer of geotechnical grid, form outer slope；Often
Layer geotechnical grid by the supporting soil body and adjacent geotechnical grid all with being interfixed；Geotechnical grid horizontal direction is provided with draining
Pipeline.
Further, the average thickness of the retaining wall is not less than the 1/2 of retaining wall height.
Further, the retaining wall is layer structure, and basal layer longitudinal direction thickness is 20-25cm, and every layer of longitudinal direction is thick upwards
Spend for 10-15cm.
Further, the geotechnical grid is successively laid upwards, and the outside of every layer of geotechnical grid is to contract 5-10cm, shape
Into i=300% outer slope.
Further, a length of 10-15cm of geotechnical grid single hole, a width of 10-15cm of single hole, single hole area are 70-
80cm2, cell compartment thickness is 1-2mm.
Further, the geotechnical grid transversely inside and outside be equipped with keyhole, inner side is with pile steel nail by geotechnological lattice
Room by the supporting soil body with successively being fixed, and constant depth is 10-15cm, and the anchoring that outside is used between geotechnical grid layer, anchoring is deep
Spend for 10-15cm.
Further, the retaining wall sets drainpipe, draining since the upper surface of bottom every 4 layers of geotechnical grid
Length of tube is than the long 1-5cm of upper layer retaining wall transverse width.
Further, the retaining wall use compression strength for 5-6MPa cement-fly ash foam concrete is filled and
Into.
Further, the cement-fly ash foam concrete by cement, flyash, water according to (8-9):5:7 quality
Ratio, is mixed with foaming agent and forms.
The method of above-mentioned geotechnical grid reinforcement foam concrete retaining wall structure, is made up of following construction procedure：
(1) to former foundation dredging, leveling, it is ensured that ground meets minimum bearing capacity；
(2) retaining wall basal layer transverse width is calculated, tensioning geotechnical grid, side is close to, by the supporting soil body, utilize both sides
Keyhole, by geotechnical grid dowel pin on soil matrix surface, and along fabric swatch molding on the outside of geotechnical grid；
(3) cement, flyash, water are pressed 8:5:7 mass ratio, cement-fly ash foam is mixed with foaming agent
Concrete, is poured in a mold；
(4) drainpipe is arranged every 1.5-2m above basal layer, draining length of tube is more laterally wide than upper layer retaining wall
Spend long 1-5cm；
(5) in the case of the also unseasoned shaping of basal layer foam concrete, second layer geotechnical grid is laid, outside is utilized
Keyhole is mutually anchored every 40-50cm with next layer, and anchorage depth is 10-15cm, and inner side utilizes pile steel nail, every 40-50cm
By geotechnical grid with being fixed by the supporting soil body, dowel pin depth is 10-15cm, and equally along fabric swatch molding on the outside of geotechnical grid；
(6) after basal layer foam concrete reaches prescribed strength, the foam concrete prepared is poured native to last layer
In work cell compartment mould；
(7) (5), (6) two steps are repeated, are successively constructed, until reaching regulation retaining wall height.
Beneficial effect：Geotechnical grid reinforcement foam concrete retaining wall in lightweight structure and its method that the present invention is provided, with
Conventional gravity formula retaining wall is compared, and quality wants light by 50%~90%, pressure of the retaining wall to ground can be greatly reduced, in ground
It is especially suitable under the less special geologic condition of bearing capacity.Compared with general retaining wall in lightweight, the cement-fly ash bubble of filling
Foam concrete has certain intensity and durability, in the case of geotechnical grid successively reinforcement, wall is had more
Big intensity, on the other hand enhances wall by the globality and the resistance to capsizing of wall between the supporting soil body.Even in
In the case that foam concrete produces crack, acted on by geotechnical grid side wall side to restraint and frictional force, retaining wall is still
It ensure that enough intensity.Compared with the geotechnical grid retaining wall typically filled with sandy soil, rubble, the adjacent soil of the retaining wall
By the anchorage effect of concrete and rebar between work cell compartment layer, structure is more stablized.With cement-fly ash foam concrete conduct
Geotechnical grid packing material, with bigger intensity and durability, is influenceed small by rain drop erosion.Meanwhile, foam concrete
Good fluidity, with filling self compacting ability, it is not necessary to carry out fill compaction, is easy to construction.
Brief description of the drawings
Fig. 1 is retaining wall cross-sectional configuration schematic diagram of the present invention；
Fig. 2 is every layer of geotechnical grid layout diagram；
Fig. 3 is that geotechnical grid is anchored and pile steel nail fixes schematic diagram.
Embodiment
The invention discloses a kind of foam concrete retaining wall in lightweight fill placement technique of utilization geotechnical grid reinforcement, belong to
Road engineering design and technical field of construction.The retaining wall of the present invention, is mixed using high intensity geotechnical grid framing, then by foam
Solidifying soil is filled.In structure, lay geotechnical grid upwards step by step and pour foam concrete, every layer of geotechnical grid outside inside contracts to be formed
Certain slope, is successively fixed with the soil body.The construction method of the present invention includes：Excavate, clear up and leveling ground；Tensioning, fixation are most
Bottom geotechnical grid, and joints cement-fly ash foam concrete；Arrange drainpipe；Upward successively tensioning, fixed geotechnological lattice
Room, and foam concrete is poured, until reaching required height.It is of the invention compared with traditional gravity retaining wall, overall structure
Lightweight, it is relatively low to ground requirement for bearing capacity, fixed by reinforcement step by step, enhance the connection integrity between retaining wall and the soil body
With the resistance to capsizing of retaining wall, while ensure that the intensity of wall.Foam concrete takes full advantage of industrial residue flyash,
Pouring construction also more facilitates.The present invention is applied to all kinds of roadbeds, cutting retaining wall, and the foundation bearing capacity that is particularly suitable for use in is less
Geological conditions.
A kind of geotechnical grid reinforcement foam concrete retaining wall structure, general frame is constructed by high intensity geotechnical grid；Water
Mud-fly ash foam concrete is cast in geotechnical grid；Geotechnical grid is successively laid upwards and pours foam concrete, until
Reach specified altitude requirement；Certain distance is inside contracted on the outside of every layer of geotechnical grid, certain gradient is formed；Arrange and arrange in specified interlayer
Waterpipe；All with the soil body and up and down, both sides geotechnical grid interfixes every layer of geotechnical grid.
Wherein, retaining wall is layer structure, and basal layer longitudinal direction thickness is 20-25cm (i.e. bottom geotechnical grid height),
It is 10-15cm (i.e. every layer geotechnical grid height) per thickness degree upwards, retaining wall whole height is determined according to actual conditions.Earth-retaining
The cement-fly ash foam concrete that wall is about 5-6MPa using compression strength, which is filled, to be formed.Cement-fly ash foam concrete
By cement, flyash, water according to (8-9):5:7 mass ratio, is mixed with appropriate foaming agent and forms.
Retaining wall geotechnical grid, successively upwards, to contract 5-10cm on the outside of every layer of geotechnical grid, forms i=300%'s
Outer slope, the thickness of retaining wall need to match with retaining wall whole height, it is ensured that average thickness is not less than retaining wall height
1/2。
Geotechnical grid is equipped with keyhole along inside and outside road direction two, and inner side is with pile steel nail by geotechnical grid and by supporting soil
Body is successively fixed, constant depth about 10-15cm, the anchoring that outside is used between geotechnical grid layer, it is ensured that structural integrity, anchoring
Depth about 10-15cm.
Retaining wall sets drainpipes since the upper surface of bottom every 4 layers of geotechnical grid, draining length of tube be slightly longer than to
Last layer retaining wall transverse width.
The construction method of the present invention includes：Excavate, clear up and leveling ground；Tensioning, fixed bottom geotechnical grid, and pour
Build cement-fly ash foam concrete；Arrange drainpipe；Upward successively tensioning, fixed geotechnical grid, and pour foam coagulation
Soil, until reaching required height.
Below in conjunction with the accompanying drawings, the embodiment to the fill placement technique of the present invention is further described.Obviously, retouched
The embodiment stated is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those skilled in the art are obtained on the premise of creative technology is not made, belongs to the present invention
Protection domain.
Embodiment
It is geotechnical grid reinforcement foam concrete retaining wall cross-sectional configuration schematic diagram as shown in Figure 1, including by supporting soil
Body 1, soil matrix 2, geotechnical grid 3, cement-fly ash foam concrete filling 4, drainpipe 5, anchor bar 6, pile steel nail 7.Tool
Body construction mode has the following steps：
(1) original soil base 2 excavated, filled, leveling is handled, soil matrix is compacted with vibrating roller, makes soil
Base meets the requirement of minimum bearing capacity.
(2) according to actual conditions, the transverse width of retaining wall basal layer (bottom) is calculated, and prepares the soil of dimension
Work cell compartment material, as shown in Fig. 2 it is about 15cm that the present embodiment, which chooses geotechnical grid single hole length (L), single hole wide (B) is about 10cm,
Single hole area is about 75cm2, cell compartment thickness is about 1mm.Scene laying tensioning geotechnical grid 3, it is ensured that geotechnical grid tensioning is complete
Entirely, side is close to by the supporting soil body 1.Using the keyhole of geotechnical grid both sides, geotechnical grid is entered every 40cm piles steel nail 7
Row is fixed on soil matrix 2, and dowel pin depth is 100cm.Fix after terminating, plank molding is laid along geotechnical grid outside.
(3) by cement, fine coal, water ash according to (8-9)：5：7 mass ratio is mixed, and adds foaming agent, is prepared anti-
The cement-fly ash foam concrete 4 that Compressive Strength is about 5MPa.The foam concrete prepared is poured by way of pumping
In the mould of retaining wall basal layer.Because foam concrete has preferably filling self compacting ability, without being vibrated and being ground
Pressure, only needs flattened faces.
(4) diameter about 1.5cm drainpipe 5 is arranged every 1.5m in the top of basal layer, one, drainpipe is close to
By the supporting soil body 1, length is slightly longer than one layer of the retaining wall transverse width that will be laid upwards.
(5) in the case of the also unseasoned shaping of basal layer foam concrete, second layer geotechnical grid is laid, outside is utilized
Keyhole, is anchored, anchorage depth is about every in the foam concrete that anchor bar 6 is inserted into basal layer (next layer) by 40cm
For 15cm.It is in contact, using pile steel nail, is fixed on geotechnical grid every 40cm with by the supporting soil body 1 on the inside of geotechnical grid
By on the supporting soil body, dowel pin depth about 15cm, as shown in Figure 3.It is same to lay plank molding along on the outside of geotechnical grid, note needs
The position of drainpipe is available, and to include the bedding void caused by arranging drainpipe.
(6) after basal layer foam concrete reaches some strength, the foam concrete for pouring preparation is geotechnological to last layer
In cell compartment mould, noting can not be clogging by drainpipe two.
(7) (5), (6) two steps are repeated, are successively constructed, until reaching regulation retaining wall height.
Whether this construction should examine associated materials qualified before carrying out, including the geotechnical grid strength of materials (including joint connection
Place) it is whether up to standard, whether geotechnical grid has breakage, and whether pile steel nail, anchor bar quality are qualified, and whether drainpipe quality reaches
Mark etc..If the underproof situation of material, it is necessary to which relevant manufacturers are changed immediately, need to change material supplier if necessary.
The retaining wall of the embodiment, outside is in the i=300% gradient, alleviates retaining wall weight, it is ensured that structure is steady
It is qualitative.Compared with Conventional gravity formula retaining wall, the retaining wall gross mass wants light by 50%~90%, relatively low to ground requirement for bearing capacity.Bubble
Foam concrete filler further ensures the bulk strength and durability of retaining wall under conditions of geotechnical grid reinforcement.With one
As with sandy soil, rubble fill geotechnical grid reinforcement retaining wall compare, the retaining wall is anchored by multilayer, dowel pin effect, structure is more
It is stable, enhance resistance to capsizing.Foam concrete good fluidity, with self compacting ability, without compacting, is easy to construction.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of geotechnical grid reinforcement foam concrete retaining wall structure, it is characterised in that：If constructing whole by dried layer geotechnical grid
Joints cement-fly ash foam concrete in body framework, the geotechnical grid；Inside contracted on the outside of every layer of geotechnical grid, form outer
Side slope degree；Every layer of geotechnical grid by the supporting soil body and adjacent geotechnical grid all with being interfixed；Along geotechnical grid horizontal direction
It is provided with drainage pipeline.
2. geotechnical grid reinforcement foam concrete retaining wall structure according to claim 1, it is characterised in that：The earth-retaining
The average thickness of wall is not less than the 1/2 of retaining wall height.
3. geotechnical grid reinforcement foam concrete retaining wall structure according to claim 1, it is characterised in that：The earth-retaining
Wall is layer structure, and basal layer longitudinal direction thickness is 20-25cm, and every layer of longitudinal thickness is 10-15cm upwards.
4. geotechnical grid reinforcement foam concrete retaining wall structure according to claim 1, it is characterised in that：The geotechnique
Cell compartment is successively laid upwards, and the outside of every layer of geotechnical grid forms i=300% outer slope to contract 5-10cm.
5. geotechnical grid reinforcement foam concrete retaining wall structure according to claim 1, it is characterised in that：The geotechnique
The a length of 10-15cm of cell compartment single hole, a width of 10-15cm of single hole, single hole area are 70-80cm2, cell compartment thickness is 1-2mm.
6. geotechnical grid reinforcement foam concrete retaining wall structure according to claim 1, it is characterised in that：The geotechnique
Cell compartment transversely inside and outside be equipped with keyhole, inner side with pile steel nail by geotechnical grid with successively being fixed by the supporting soil body, Gu
Depthkeeping degree is 10-15cm, and outside is for the anchoring between geotechnical grid layer, and anchorage depth is 10-15cm.
7. geotechnical grid reinforcement foam concrete retaining wall structure according to claim 1, it is characterised in that：The earth-retaining
Wall sets drainpipe since the upper surface of bottom every 4 layers of geotechnical grid, and draining length of tube is more horizontal than upper layer retaining wall
The long 1-5cm of width.
8. geotechnical grid reinforcement foam concrete retaining wall structure according to claim 1, it is characterised in that：The earth-retaining
Wall uses compression strength to be filled for 5-6MPa cement-fly ash foam concrete and formed.
9. the geotechnical grid reinforcement foam concrete retaining wall structure according to claim 1 or 8, it is characterised in that：It is described
Cement-fly ash foam concrete is by cement, flyash, water according to (8-9):5:7 mass ratio, is mixed with foaming agent
Form.
10. a kind of method of geotechnical grid reinforcement foam concrete retaining wall structure, it is characterised in that：By following construction procedure group
Into：
(1) to former foundation dredging, leveling, it is ensured that ground meets minimum bearing capacity；
(2) retaining wall basal layer transverse width is calculated, tensioning geotechnical grid, side is close to by the supporting soil body, using both sides keyhole,
By geotechnical grid dowel pin on soil matrix surface, and along fabric swatch molding on the outside of geotechnical grid；
(3) cement, flyash, water are pressed into (8-9):5:7 mass ratio, cement-fly ash foam is mixed with foaming agent
Concrete, is poured in a mold；
(4) drainpipe is arranged every 1.5-2m above basal layer, draining length of tube is longer than upper layer retaining wall transverse width
1-5cm；
(5) in the case of the also unseasoned shaping of basal layer foam concrete, second layer geotechnical grid is laid, outside utilizes keyhole
Mutually anchored with next layer every 40-50cm, anchorage depth is 10-15cm, inner side utilizes pile steel nail, every 40-50cm by soil
Work cell compartment by the supporting soil body with being fixed, and dowel pin depth is 10-15cm, and equally along fabric swatch molding on the outside of geotechnical grid；
(6) after basal layer foam concrete reaches prescribed strength, the foam concrete for preparing is poured to the geotechnological lattice of last layer
In the mould of room；
(7) (5), (6) two steps are repeated, are successively constructed, until reaching regulation retaining wall height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407630.4A CN107142959A (en) | 2017-06-02 | 2017-06-02 | A kind of geotechnical grid reinforcement foam concrete retaining wall fills structure and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407630.4A CN107142959A (en) | 2017-06-02 | 2017-06-02 | A kind of geotechnical grid reinforcement foam concrete retaining wall fills structure and its method |
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| CN107142959A true CN107142959A (en) | 2017-09-08 |
Family
ID=59779381
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| CN201710407630.4A Pending CN107142959A (en) | 2017-06-02 | 2017-06-02 | A kind of geotechnical grid reinforcement foam concrete retaining wall fills structure and its method |
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| CN110578290A (en) * | 2019-08-14 | 2019-12-17 | 山东高速工程检测有限公司 | Abutment back backfilling structure of bridgehead and construction method thereof |
| CN111441206A (en) * | 2020-03-04 | 2020-07-24 | 山东大学 | Composite reinforced lightweight soil retaining wall roadbed integrated structure and construction method |
| CN112281638A (en) * | 2020-11-04 | 2021-01-29 | 武汉大学 | Two-stage reinforced earth abutment with closely-arranged ribs and construction method thereof |
| CN112921731A (en) * | 2021-01-28 | 2021-06-08 | 武汉大学 | Reinforced gravel pile supported EPS light embankment structure in soft soil area and construction method |
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| US20120237299A1 (en) * | 2009-12-08 | 2012-09-20 | Carlton Dudding | Berm and method of construction thereof |
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| CN112281638A (en) * | 2020-11-04 | 2021-01-29 | 武汉大学 | Two-stage reinforced earth abutment with closely-arranged ribs and construction method thereof |
| CN112921731A (en) * | 2021-01-28 | 2021-06-08 | 武汉大学 | Reinforced gravel pile supported EPS light embankment structure in soft soil area and construction method |
| CN112921731B (en) * | 2021-01-28 | 2022-04-01 | 武汉大学 | Reinforced gravel pile supported EPS light embankment structure in soft soil area and construction method |
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Application publication date: 20170908 |