CN109295921B - Sea wall structure filled with Bayer process red mud and construction method thereof - Google Patents
Sea wall structure filled with Bayer process red mud and construction method thereof Download PDFInfo
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- CN109295921B CN109295921B CN201811319325.0A CN201811319325A CN109295921B CN 109295921 B CN109295921 B CN 109295921B CN 201811319325 A CN201811319325 A CN 201811319325A CN 109295921 B CN109295921 B CN 109295921B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Abstract
The invention discloses a sea wall structure filled with Bayer process red mud and a construction method thereof, belonging to the field of sea wall protection engineering. The sea wall structure comprises a sea wall foundation, a sea wall main body, a sealing layer, a wave-preventing masonry and a road structure, wherein the sea wall main body is filled on the sea wall foundation by red mud filling materials in a layered compaction mode, and the sea facing side, the sea facing side and the sea facing side of the sea wall main body and the top of the sea wall are all filled with sealing materials in a layered compaction mode to form the sealing layer. According to the invention, the red mud filling material is compounded according to the mixing proportion, so that the filling material meets the requirements of sea wall strength and the solidification of heavy metal ions in industrial waste, the sea wall structure design avoids the red mud filling material from being corroded by seawater, the large-scale application of the industrial waste Bayer process red mud, fly ash, phosphogypsum and the like in sea wall protection engineering is realized, a large amount of filling soil can be saved, the characteristics of energy conservation, emission reduction and environmental protection are realized, and the method has good popularization and application values.
Description
Technical Field
The invention relates to the field of seawall protection engineering, in particular to a seawall structure filled with Bayer process red mud and a construction method thereof.
Background
Bayer process red mud is a pollutant waste residue discharged during alumina extraction in the aluminum production industry, and generally produces 1.0-2.0 tons of red mud per 1 ton of alumina on average. The Bayer process red mud produced every year worldwide is about 7000 ten thousand tons, and the Bayer process red mud produced every year in China is more than 3000 ten thousand tons. At present, a large amount of aluminum ores serving as raw materials for aluminum smelting in China are imported, and most aluminum factories are arranged in coastal areas for the convenience of transportation and the cost, so that a large amount of aluminum industry waste Bayer process red mud is distributed in the coastal areas. In view of safety management and environmental protection, the treatment of Bayer process red mud mainly depends on stacking in a large area, occupies a large amount of land, causes pollution to the environment, and seriously affects the environmental protection and economic development of surrounding areas of the stacking.
On the other hand, in order to protect and develop and utilize coastal beaches, a great deal of coastal beaches in China need to be constructed on seawalls. However, coastal beaches are lack of a large amount of seawall filling earth and stone materials, if excavated and transported outside through different land earth fields, natural environment is destroyed, and transportation cost is greatly increased. If Bayer process red mud is used as a sea wall filling material, the problem of shortage of sea wall filling materials is solved, and meanwhile, the reduction and resource utilization of the Bayer process red mud are also important breakthroughs.
However, the existing Bayer process red mud directly used as a sea wall filling material cannot meet engineering index requirements and cannot meet environmental protection index requirements. The engineering characteristics and the environmental characteristics of Bayer process red mud used as a sea wall filling material are greatly different from those of other engineering applications, and a complete set of materials and structural schemes for filling sea walls with the red mud are not available so far. The patent document with publication number of CN108086337A discloses a method for sea-filling and land-making of red mud cofferdam, which, although realizing the application of red mud to a certain extent, still has the following defects: 1. a large amount of waste stones are needed to fill the slope protection waste stone dam; 2. the red mud of the cofferdam and the red mud piled up need to be pretreated; 3. the overflow generated by the concentration of the red mud is discharged into the sea, oxalic acid and the like are needed to neutralize the red mud, and polymeric ferric sulfate is used for adsorbing pollutants in the red mud so as to avoid polluting the sea water; 4. the paste thickener and the filter press are used for compression filtration, the construction process is complex, and the construction period is long because the red mud is piled after the artificial cofferdam is firstly made.
Disclosure of Invention
The technical task of the invention is to provide a sea wall structure filled with Bayer process red mud aiming at the defects of the prior art. The seawall structure can ensure that the Bayer process red mud can meet engineering index requirements and environmental protection requirements as seawall filler, and can greatly reduce the consumption of traditional earth and stone materials, thereby achieving the purposes of safety, environmental protection and durability.
The invention further aims to provide a construction method of a sea wall structure filled with Bayer process red mud.
The technical task of the invention is realized in the following way: the sea wall structure filled with Bayer process red mud is characterized by comprising a sea wall foundation, a sea wall main body, a sealing layer, a wave-preventing masonry and a road structure, wherein the sea wall foundation is filled by base materials in a layered compaction mode, the sea wall main body is filled on the sea wall foundation by red mud filling materials in a layered compaction mode, the sea facing side, the back sea side and the top of the sea wall main body are all sealed by sealing materials in a layered compaction mode to form the sealing layer, the wave-preventing masonry is arranged outside the sealing layer on the sea side, the road structure is paved on the sealing layer on the top of the sea wall, the red mud filling materials are Bayer process red mud added with a modifier, and the mixing ratio of the Bayer process red mud and the modifier is (90-95): 8; the modifier is a mixture of fly ash, phosphogypsum, zeolite powder and a regulator; the base material and the packaging material are soil doped with lime and/or cement.
Preferably, planting soil can be covered outside the back sea side wrapping layer for greening so as to meet the requirements of ecology, environment and landscape around the seawall. The thickness of the planting soil is not less than 100cm.
In order to meet engineering and environmental index requirements of the material for filling the seawall, the mass ratio of the fly ash, phosphogypsum, zeolite powder and the regulator in the modifier is preferably (4-6): (1-3): (0.5-1.5): (0.3-0.6), especially when the mass ratio of phosphogypsum, zeolite powder and regulator is (4.5-5.5): (2-3): (0.7-1.1): (0.5-0.6), the best technical effect can be achieved.
The regulator is used for solidifying heavy metal ions in Bayer process red mud and improving performance indexes such as compressive strength of seawall main body, and is preferably sodium alginate (purity is more than 97%, fineness is less than 80 meshes) or sodium carboxymethyl cellulose.
In order to ensure the stability of the sea wall structure, after the sea wall foundation is reinforced according to the requirement, the total thickness of the sea wall foundation is not less than 80cm, and the equivalent modulus of the top surface of the foundation is required to be more than 80MPa; the total thickness of the envelope is not less than 50cm, and the equivalent modulus is required to be more than 120MPa. Further, the width of the dykes of the sea-facing side seal cladding layer and the back-facing side seal cladding layer is not less than 1.5m, the slope ratio of the sea-facing side seal cladding layer is preferably 1:1.5-1:5, and the slope ratio of the back-facing side seal cladding layer is preferably 1:3-1:6.
In order to achieve the best effect, the red mud filling material of the seawall main body and the sealing material of the sea-facing side sealing layer and the back-sea side sealing layer are filled (compacted) in layers to the designed height at the same time.
The addition amount of lime in the base material is 5-10%, preferably 5-7%; the mixing amount of cement is 3-6%, preferably 3-5%.
The mixing amount of lime in the packaging material is 5-10%, preferably 7-9%; the mixing amount of cement is 4-8%, preferably 4-6%.
The construction method of the sea wall structure filled with Bayer process red mud is characterized by comprising the following steps:
a. performing sea wall foundation layered compaction filling construction by using a foundation material;
b. filling construction of a sea wall main body, a sea facing side sealing layer and a sea facing side sealing layer is carried out on the basis of the sea wall, the sea facing side sealing layer and the sea facing side sealing layer are respectively positioned at two sides of the sea wall main body, synchronous filling compaction is carried out on the sea wall main body, the compaction thickness of each layer is 20-25 cm, and the construction of a wall top sealing layer is carried out after the sea wall main body is completed;
c. paving a road structure on the dike top sealing layer;
d. arranging wave-resistant masonry outside the sea-facing side wrapping layer;
e. road structures are paved on the dyke top sealing layer,
the red mud filler is a mixture of Bayer process red mud, fly ash, phosphogypsum, zeolite powder and a regulator, and the base material and the packaging material are soil doped with lime and/or cement.
In order to ensure the integral rigidity and stability of the seawall main body, a heavy road roller is adopted for compaction, layered filling construction is carried out, the thickness of each layer of compaction is preferably 20-25 cm, the compactness requirement is more than or equal to 95%, and the next layer of filling construction is carried out after the compaction is completed and moisture maintenance is carried out for 1 day.
When the road structure adopts an asphalt pavement, as the surface of the rolled dyke top sealing layer is very compact, the interface is not easy to be bonded with an asphalt concrete pavement, and a 10-20 mm single-particle-diameter broken stone connecting layer can be arranged between the two layers in order to ensure good connection between the dyke top sealing layer and the asphalt pavement structure. Spreading immediately after the construction and rolling of the sealing layer at the top of the dyke is finished, wherein the spreading amount is 6-10 kg/m 2 And uniformly spreading, and then rolling with a small steel wheel road roller for one time, wherein broken stones are partially embedded, and a uniform rough structural surface is formed on the surface of the roadbed.
Further, the construction method further comprises covering planting soil for greening outside the back sea side wrapping layer.
Compared with the prior art, the sea wall structure filled with Bayer process red mud and the construction method thereof have the following outstanding beneficial effects:
firstly, solidifying heavy metal ions in the red mud by using a regulator, discharging overflow into seawater is not needed, and lime and/or cement soil effectively isolate the red mud from the seawater, so that an anti-pollution effect can be achieved;
secondly, an artificial cofferdam is not required to be constructed in advance, and the red mud filling material and lime soil and/or cement soil on two sides are filled (compacted in layers) to the designed height at the same time, so that the construction process is simple;
the dosage of the traditional earth and stone materials can be greatly reduced, and the method has the characteristics of energy conservation, emission reduction and environmental protection;
and (IV) the structural layer of the Bayer process red mud filling material in the seawall main body is not corroded by seawater, so that the long-term stability of the whole structure is ensured, and the seawall main body has the characteristics of safety and durability.
Drawings
FIG. 1 is a schematic diagram of a Bayer process red mud filled sea wall structure in an embodiment.
Detailed Description
The sea wall structure filled with bayer process red mud and the construction method thereof according to the present invention will be described in detail below with reference to the accompanying drawings.
Examples:
a great number of Bayer process red mud yards are distributed nearby the line of the newly built seawall engineering project in a coastal area of China according to the standard design of the 2-level seawall, the seawall structure is filled by Bayer process red mud, the section type is a slope type, the requirements on stability, seepage, deformation, scour resistance and the like are met according to the design of disallowing surmounting, and meanwhile the requirements on ecology, environment, landscape and sea use of the periphery of the seawall are also met.
1. Determining Bayer process red mud filled sea wall structure combination type
According to requirements of sea wall engineering grade, wall height, geological conditions and the like, economical and reasonable sea wall filling structure design combination is determined: the road pavement of the dyke top comprises a dyke top pavement 1, a dyke main body 2, a sealing layer, a dyke foundation 4, wave-resistant masonry 5 and planting soil 6. The encapsulation layer comprises a sea side encapsulation layer 31, a back sea side encapsulation layer 32 and a dyke top encapsulation layer 33.
The embankment top pavement 1 adopts a 6cm asphalt anti-skid wearing layer AC-16; the sea wall main body 2 adopts 300cm to stably solidify Bayer process red mud; the encapsulation layer adopts lime soil with the concentration of 50cm 8%; the seawall foundation 4 adopts 80cm6% lime soil. The width of the dykes at the two sides of the seawall (the seaside cladding 31 and the back seaside cladding 32) is 1.5m, the seaside slope ratio is 1:3, the back seaside slope ratio is 1:5, and the total width of the dykes is designed according to 6 m.
According to the engineering design elevation of the seawall, the surface soil of the original seawall foundation is removed, and the foundation is compacted by a heavy road roller, so that the requirements of seepage control, stability and deformation are met. Also, the seawall foundation 4 is made to meet the seepage control, stabilization and deformation requirements by using the heavy road roller, and then the filling construction of the seawall main body 2, the sea facing side seal coat 31 and the back sea side seal coat 32 is performed on the seawall foundation 4. The sea facing side sealing layer 31 and the back sea side sealing layer 32 are respectively positioned at two sides of the seawall main body 2, and are filled and compacted with the seawall main body 2 synchronously, the thickness of each layer is 25cm, and the total filling thickness is determined according to the height design of the seawall. After the sea wall main body 2 is completed, the construction of the 50cm wall top envelope 33 is performed, and then the paving construction of the wall top pavement 1 is performed.
The wave-resistant masonry 5 outside the sea wall side sealing layer 31 adopts concrete filled block stone slope protection with the thickness of 50cm, the reverse filtering layer adopts geotextile, and the back sea side covers 120cm planting soil 6 for greening.
The road pavement 1 on the top of the dyke adopts an asphalt concrete road, the average transverse gradient of a single-slope road arch is 2%, and a wave wall can be additionally arranged. The net height above the breakwater top of the wave wall is 1.2m, and the embedding depth is 0.5m.
2. Formula design of special modifier for red mud
In order to reduce the leaching concentration and water stability of heavy metal ions in Bayer process red mud, the red mud filler of the seawall main body 2 is subjected to stable solidification treatment by using a special modifier. The special modifier consists of fly ash, phosphogypsum, zeolite powder and sodium alginate, wherein the mass ratio of the fly ash to the phosphogypsum to the zeolite powder to the sodium alginate is 56:28:10:6.
3. Construction requirements of red mud filled sea dike by Bayer process
In order to ensure the overall rigidity and stability of the seawall main body 2, the construction mixing ratio of the Bayer process red mud and the special modifier is 92:8. The sea wall main body 2 is compacted by adopting a heavy road roller, the layered filling construction is carried out, the compaction thickness of each layer is 25cm, the compaction degree requirement is more than or equal to 95%, and the next filling construction is carried out after the compaction is completed and the moisture preservation and maintenance are carried out for 1 day.
4. Intensity and environmental protection index inspection
The on-site sampling of the red mud filler of the seawall main body 2 is used for indoor molding, and the unconfined compressive strength of the modified Bayer process red mud soil matrix is 2.73MPa and the elastic modulus is 5750MPa through inspection. The leaching concentration of the main heavy metal ions is less than 0.00005mg/L (lower than the detection limit) of the total mercury content index, and the hexavalent chromium content index is 0.009mg/L, which are both lower than the III class control standard of the underground water.
5. Sea wall overall performance test
And carrying out field test of deflection and modulus after the construction of each layer of structure is completed. The deflection value of the top surface of the seawall foundation 4 is less than 150 (0.01 mm), and the equivalent rebound modulus is more than 80MPa; the deflection value of the top surface of the encapsulation layer is less than 100 (0.01 mm), and the equivalent rebound modulus is more than 120MPa; the deflection value of the top surface of the seawall main body 2 is less than 90 (0.01 mm), and the equivalent rebound modulus is more than 150MPa; the deflection value of the top surface of the dyke-top pavement 1 is less than 20 (0.01 mm). The sea wall structure has good strength, rigidity and stability.
6. Interface connection treatment of asphalt pavement and roadbed top surface
Because the surface of the lime soil roadbed after rolling is very compact, the interface is not easy to bond with the asphalt concrete pavement, in order to ensure good connection between the roadbed and the asphalt pavement structure, a 15mm single-particle-size broken stone connecting layer is arranged between the two layers, lime stabilized soil roadbed is immediately spread after the construction rolling is finished, and the spreading amount is 8-9 kg/m 2 And uniformly spreading, and then rolling with a small steel wheel road roller for one time, wherein broken stones are partially embedded, and a uniform rough structural surface is formed on the surface of the roadbed.
7. Asphalt structural layer material design
The asphalt anti-skid wearing layer adopts an AC-16 graded asphalt mixture, the asphalt binder adopts PG 76-22 modified asphalt, the design void ratio is 3.5-4.5%, and the design thickness is 6cm.
8. Proved calculation for stabilization, seepage and deformation of sea wall filled with Bayer process red mud
Calculating the seepage and permeation stability of the Bayer process red mud filled sea dike according to annex E of the national standard 'embankment engineering design Specification' (GB 50286-2013), wherein the permeability coefficient of the embankment body is 5 multiplied by 10 -4 cm/s, satisfying the seepage stability.
The calculation of the integral anti-slip stability of the sea wall filled with the Bayer process red mud adopts a Swedish arc method, and the safety coefficient is 1.5, which is greater than the integral anti-slip stability requirement of the 2-level sea wall under normal operating conditions.
Comparative example 1:
the seawall structure is characterized in that sodium carboxymethyl cellulose is used as a regulator in the red mud filling material.
Comparative example 2:
the seawall structure described in the embodiment is adopted, and the difference is that no regulator is added into the red mud filler.
Comparative example 3:
the seawall structure is adopted, and the difference is that 100% red mud is adopted as red mud filler.
Comparative example 1, comparative example 2, comparative example 3 raw material composition:
performance measurements were performed on seawall bodies constructed in examples, comparative example 1, comparative example 2 and comparative example 3, to obtain the following performance data:
from the data, the seawall structure filled with the Bayer process red mud has outstanding performance in the aspects of compressive strength, deflection value, environmental protection test and the like, and particularly, the addition of the regulator further improves various performance indexes of the seawall main body of the Bayer process red mud.
Claims (9)
1. The sea wall structure filled with Bayer process red mud is characterized in that: the sea wall comprises a sea wall foundation, a sea wall main body, a sealing layer, a wave-proof masonry and a road structure, wherein the sea wall foundation is filled by base materials in a layered compaction mode, the sea wall main body is filled on the sea wall foundation by red mud filling materials in a layered compaction mode, the sea facing side, the back sea side and the top of the sea wall main body are all filled by sealing materials in a layered compaction mode to form the sealing layer, the wave-proof masonry is arranged outside the sea facing side sealing layer, the road structure is paved on the sealing layer at the top of the sea wall, the red mud filling materials are Bayer process red mud added with a modifier, and the mixing ratio of the Bayer process red mud to the modifier is (90-95): 8; the modifier is a mixture of fly ash, phosphogypsum, zeolite powder and a regulator, and the regulator is sodium alginate or sodium carboxymethyl cellulose; the base material and the packaging material are soil doped with lime and/or cement.
2. The bayer process red mud filled seawall structure according to claim 1, wherein: the outside of the back sea side wrapping layer is covered with planting soil for greening.
3. The bayer process red mud filled seawall structure according to claim 1 or 2, wherein: the mass ratio of the fly ash, phosphogypsum, zeolite powder and the modifier in the modifier is (4-6): (1-3): (0.5-1.5): (0.3-0.6).
4. The bayer process red mud filled seawall structure according to claim 1 or 2, wherein: the total thickness of the sea wall foundation is not less than 80cm, and the top equivalent modulus is required to be more than 80MPa.
5. The bayer process red mud filled seawall structure according to claim 1 or 2, wherein: the total thickness of the envelope is not less than 50cm, and the equivalent modulus is required to be more than 120MPa.
6. The bayer process red mud filled seawall structure according to claim 5, wherein: the width of the dykes of the sea side sealing cladding layer and the back sea side sealing cladding layer is not less than 1.5m, the slope ratio of the sea side sealing cladding layer is 1:1.5-1:5, and the slope ratio of the back sea side sealing cladding layer is 1:3-1:6.
7. The bayer process red mud filled seawall structure according to claim 1 or 2, wherein: the red mud filling material of the seawall main body and the sealing material of the sea side sealing layer and the back sea side sealing layer are simultaneously layered and filled to the designed height.
8. The construction method of the bayer process red mud filled sea dike structure according to any one of claims 1 to 7, comprising the steps of:
a. performing sea wall foundation layered compaction filling construction by using a foundation material;
b. filling construction of a sea wall main body, a sea facing side sealing layer and a sea facing side sealing layer is carried out on the basis of the sea wall, the sea facing side sealing layer and the sea facing side sealing layer are respectively positioned at two sides of the sea wall main body, synchronous filling compaction is carried out on the sea wall main body, the compaction thickness of each layer is 20-25 cm, and the construction of a wall top sealing layer is carried out after the sea wall main body is completed;
c. paving a road structure on the dike top sealing layer;
d. wave-resistant masonry is arranged outside the sea-facing side wrapping layer.
9. The construction method of the sea wall structure filled with bayer process red mud according to claim 8, wherein the construction method comprises the following steps: the method also comprises the step of covering planting soil for greening outside the back sea side wrapping layer.
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| CN101343852A (en) * | 2008-08-19 | 2009-01-14 | 中交第二公路勘察设计研究院有限公司 | Method for filling highroad roadbed by waste steel slags |
| CN101363217A (en) * | 2007-08-09 | 2009-02-11 | 沈阳铝镁设计研究院 | Dam construction method of red mud permeable dam by sintering process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101363217A (en) * | 2007-08-09 | 2009-02-11 | 沈阳铝镁设计研究院 | Dam construction method of red mud permeable dam by sintering process |
| CN101343852A (en) * | 2008-08-19 | 2009-01-14 | 中交第二公路勘察设计研究院有限公司 | Method for filling highroad roadbed by waste steel slags |
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