CN111456083A - Ecological geotechnical filling retaining wall and construction method thereof - Google Patents
Ecological geotechnical filling retaining wall and construction method thereof Download PDFInfo
- Publication number
- CN111456083A CN111456083A CN202010417489.8A CN202010417489A CN111456083A CN 111456083 A CN111456083 A CN 111456083A CN 202010417489 A CN202010417489 A CN 202010417489A CN 111456083 A CN111456083 A CN 111456083A
- Authority
- CN
- China
- Prior art keywords
- ecological
- retaining wall
- soil
- bag
- bags
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 66
- 238000011049 filling Methods 0.000 title claims abstract description 33
- 239000002689 soil Substances 0.000 claims abstract description 89
- 239000000463 material Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 241000196324 Embryophyta Species 0.000 claims description 16
- 238000013461 design Methods 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 12
- 239000003337 fertilizer Substances 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000010899 nucleation Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 230000035764 nutrition Effects 0.000 claims description 3
- 235000016709 nutrition Nutrition 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000004083 survival effect Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 238000009966 trimming Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000004642 transportation engineering Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005056 compaction Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000009958 sewing Methods 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003864 humus Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 238000013102 re-test Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (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)
- Structural Engineering (AREA)
- Environmental Sciences (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses an ecological geotechnical filling retaining wall and a construction method thereof, belonging to the technical field of building construction, wherein the retaining wall is formed by stacking ecological bags, the ecological bags are fixed through a plurality of layers of reinforced grids, and the reinforced grids of two adjacent layers are fixed through connecting buckles; the ecological bag is filled with soil and particles which can freely drain water; the connecting buckles are inserted into the lattice ribs of the two layers of reinforced grids, span two adjacent ecological bags and are fixed with the ecological bags; the barricade lateral surface still is provided with plants the coating, plant the coating and depend on forming the ecological bag of barricade lateral surface. The construction method is simple and convenient, the earthwork in the field can be directly adopted, the internal and external transportation engineering quantity of the earthwork is reduced, and the construction cost is reduced; the novel retaining wall has the advantages of small occupied area, strong adaptability to the foundation, capability of bearing impact load and better anti-seismic performance, and saves occupied area and material cost compared with the traditional rubble retaining wall and concrete retaining wall.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an ecological geotechnical filling retaining wall and a construction method thereof.
Background
In recent years, the environment protection management strength is enhanced by the nation, the outside transportation difficulty of earthwork on a construction site is increased, the vertical surfaces of the traditional rubble retaining wall and the concrete retaining wall cannot be greened, and the visual effect is poor.
Disclosure of Invention
The technical task of the invention is to provide the ecological geotechnical filling retaining wall and the construction method thereof aiming at the defects, the construction is simple, the construction cost can be effectively reduced, the occupied area is small, and the adaptability to the foundation is strong.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an ecological earth-filled retaining wall is formed by stacking ecological bags, wherein the ecological bags are fixed through a plurality of layers of reinforced gratings, and the reinforced gratings of two adjacent layers are fixed through connecting buckles;
the ecological bag is filled with soil and particles which can freely drain water;
the connecting buckles are inserted into the lattice ribs of the two layers of reinforced grids, span two adjacent ecological bags and are fixed with the ecological bags;
the barricade lateral surface still is provided with plants the coating, plant the coating and depend on forming the ecological bag of barricade lateral surface.
According to the ecological soil engineering filling retaining wall, the lacing wires are added into the backfill soil, so that the anti-deformation capacity of backfill is improved, and the stability of the stable retaining wall is improved; planting and greening on the surface of the soil body, thereby achieving the perfect combination of ecological environmental protection and soil retaining structure. During construction, on-site earthwork can be adopted, so that the earthwork is prevented from being transported inside and outside, and the construction cost is reduced; the slope greening effect is good, and the greening and beautifying problems of tall and big slopes are solved.
Preferably, the ecological bag forming the outer side surface of the retaining wall is provided with a transplanting hole.
Preferably, the upper and lower surfaces of the connecting buckle are uniformly provided with buckles, and the buckles on the upper and lower surfaces penetrate into the bottom surface and the top surface of the upper and lower two-layer ecological bag adjacent to the buckles respectively to be fixed. The ecological bags on the upper layer and the lower layer are fixed through the buckle thorns through the connecting buckles, the two ecological bags with the span of the connecting buckles form an internal locking triangular structure, and the stability of the structure is enhanced.
Preferably, the soil components in the ecological bag comprise (by volume): 10-15% of organic matters, 60-70% of particles with the particle size of less than 50mm and more than 20mm, 10-15% of particles with the particle size of more than 0.05mm and less than 2mm, and 0-5% of clay and sludge.
Preferably, the ecological bag is used as a structural plate surface and is inwards inclined 1/100-1/200. As a reserve for packing the panel.
The invention also claims a construction method of the ecological soil engineering filled retaining wall, wherein the retaining wall is the ecological soil engineering filled retaining wall, the ecological bag is filled in a construction site, a flat substrate is excavated, soil is taken on the site, and base fertilizer or compound fertilizer is added and uniformly mixed;
the plant root system passes through the ecological bag and the connecting buckle to grow freely to form a planting layer and fix the soil body.
The ecological bag is made of high-quality environment-friendly materials, and has the physical and chemical properties of no toxicity, no degradation, resistance to acid, alkali, salt and microbial corrosion and small intensity decay; the ecological bag also has good soil fixing effect, the filtering performance of permeable soil and impermeable soil is good for living things, and the plant root system can penetrate through the ecological bag and the connecting buckle to grow freely so as to fix the soil body.
The ecological bags are mutually connected by the connecting buckles to form a firm triangular inner locking structure, so that the shearing strength is enhanced, the applicable height of the wall body can be increased, and the gradient of the wall surface is reduced.
Specifically, the construction process of the method is as follows:
1) preparing for construction;
2) excavating a flat substrate; filling soil, mixing and filling ecological bags;
3) checking and accepting the foundation;
4) side paying-off line and gradient;
5) laying a first reinforcement grid and building a first layer of ecological bag;
6) tamping the ecological bag, backfilling earthwork and compacting;
7) turning over the first reinforced grating; laying a second reinforced grating, fixedly connecting the second reinforced grating with the first reinforced grating through connecting buckles, and building a second layer of ecological bags;
8) repeating the steps 6) and 7) until backfilling to the design height;
9) cleaning the wall surface;
10) and greening;
11) and vegetation maintenance.
Further, the greening comprises spray sowing and inter-planting,
the spray seeding mode is as follows: seeds and auxiliary materials including fiber materials, a water-retaining agent, a fertilizer and a coloring agent are put into a spray seeding water tank in proportion; adding water, dissolving the mixed materials in the water, and opening a power machine to fully stir the materials until the materials are uniform; pressurizing by a power machine and a water pump; uniformly spraying the mixture to a slope section needing vegetation slope protection by using a spray gun, and covering a non-woven fabric on the slope section to germinate and sprout;
the inserting mode is as follows: according to the design requirements of the drawing, the position of the plant planted on the drawing is identified in the field according to the proportion; cutting the ecological bag into small T-shaped openings according to the size of soil balls of the nursery stock belts, and simultaneously uncovering the cut bag pieces; taking out soil at the cut position to a size suitable for the carried soil balls, and piling the taken soil beside the cut; cutting the nutrition bag of the nursery stock to expose the soil ball completely, and properly trimming the root system and the branches and leaves of the nursery stock; placing the seedlings in the soil holes, backfilling the soil until the soil holes are completely backfilled, and covering the bag pieces.
Furthermore, the vegetation is maintained, the survival period is maintained for one month, and the daily management and maintenance date is three months. Timely replanting and fertilizing according to the growth condition. The lawn density is not lower than 80%. The shrubs grow well without diseases and insect pests, and the vines grow on the surface of the bag in a climbing mode.
Preferably, outside the retaining wall foundation, a temporary catchment ditch is formed by adopting temporary color cloth strips and sand bags in rainy seasons. Clean overflow can be led into municipal administration downspout, and the silt in the canal is by artifical clearance, transports to the work area and dries in the sun.
Compared with the prior art, the ecological geotechnical filling retaining wall and the construction method thereof have the following beneficial effects:
the retaining wall consists of a panel, a tie bar and filling soil, an ecological bag is used as the wall panel of the retaining wall, and the lateral pressure of the soil is transferred to the tie bar by virtue of the friction action between the tie bar and the filling soil, so that the soil body is stabilized; reinforced retaining walls can be arranged according to different heights in a grading manner according to landscape design requirements, and greening, landscape pedestrian passages and driving passages are arranged on the wall top platform; the surface of the wall body is greened by adopting plants, so that the appearance is attractive, and the environment is harmonious.
The construction method of the retaining wall is simple and convenient to construct, the earthwork in the field can be directly adopted, the internal and external transportation engineering quantity of the earthwork is reduced, and the engineering cost is reduced; the novel retaining wall has the advantages of small occupied area, strong adaptability to the foundation, capability of bearing impact load and better anti-seismic performance, and saves occupied area and material cost compared with the traditional rubble retaining wall and concrete retaining wall.
Drawings
FIG. 1 is a schematic view showing the connection of the reinforced grating for ecological geotechnical filling retaining wall of the present invention;
FIG. 2 is a schematic view of the arrangement of the connector clasp of the present invention;
fig. 3 is a flow chart of the ecological geotechnical filling retaining wall construction process of the invention.
In the figure: 1. ecological bag, 2, add muscle grid, 3, connector link (the connector link inserts in the check rib of upper and lower two-layer muscle grid), 4, drain pipe.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
An ecological earth-filled retaining wall is formed by stacking ecological bags, wherein the ecological bags are fixed through a plurality of layers of reinforced gratings, and the reinforced gratings of two adjacent layers are fixed through connecting buckles;
the ecological bag is filled with soil and particles which can freely drain water;
the connecting buckles are inserted into the lattice ribs of the two layers of reinforced grids, span two adjacent ecological bags and are fixed with the ecological bags; the upper and lower surfaces of the connecting buckle are uniformly provided with buckles, and the buckles on the upper and lower surfaces respectively penetrate into the bottom surface and the top surface of the upper and lower two-layer ecological bag adjacent to the buckles to be fixed. The ecological bags on the upper layer and the lower layer are fixed through the buckle thorns through the connecting buckles, the ecological bags with two spans of the connecting buckles are mutually connected to form a firm triangular inner locking structure, the shear strength is enhanced, the applicable height of a wall body can be increased, and the inclination of the wall surface is reduced.
The barricade lateral surface still is provided with plants the coating, plant the coating and depend on forming the ecological bag of barricade lateral surface.
According to the ecological soil engineering filling retaining wall, the lacing wires are added into the backfill soil, so that the anti-deformation capacity of backfill is improved, and the stability of the stable retaining wall is improved; planting and greening on the surface of the soil body, thereby achieving the perfect combination of ecological environmental protection and soil retaining structure. During construction, on-site earthwork can be adopted, so that the earthwork is prevented from being transported inside and outside, and the construction cost is reduced; the slope greening effect is good, and the greening and beautifying problems of tall and big slopes are solved.
The ecological bag is made of high-quality environment-friendly materials, and has the physical and chemical properties of no toxicity, no degradation, resistance to acid, alkali, salt and microbial corrosion and small intensity decay; the ecological bag also has good soil fixing effect, the filtering performance of permeable soil and impermeable soil is good for living things, and the plant root system can penetrate through the ecological bag and the connecting buckle to grow freely so as to fix the soil body.
The specific construction method of the ecological geotechnical filling retaining wall comprises the following steps:
1. preparation for construction
The construction drawing is checked, the coordinate points set on site are retested, and the construction drawing can be used after the requirements are met. And a drainage ditch is dug along the boundary line, and a water accumulation well is arranged to ensure that no water is accumulated in rainy days. And (3) selecting and testing the filler, performing compaction test on the soil to be backfilled, and calculating the optimum water content of the compacted soil, so that the quality control of the filler during construction is facilitated. According to design requirements, materials such as ecological bags, geogrids, connecting buckles and the like are selected, ordering manufacturers are determined, various indexes of the materials are detected, and the materials can be used after being detected to be qualified.
2. Excavating flat substrate
And removing the surface deficient soil of the filled area to the original soil or the original ecological rock stratum, and inspecting the groove by an emotion exploration unit to be qualified. When excavating the substrate, the raw materials of other foundation stones are not damaged, and the substrate cannot contain sundries such as garbage.
3. Acceptance of foundations
The foundation must meet the design requirement of bearing capacity, otherwise should be designed and treated the way.
4. Soil filling and mixing, ecological bag filling
The ecological bag is filled with soil and particles which can freely drain water, and chips, root systems, branches, stones with diameters of more than 50mm and other toxic substances are removed. The filler should not contain calcium chloride, toxic substances, petroleum products and the like.
The most desirable soil ingredients should include: (by volume)
Organic matter (about): 10 to 15 percent
Particles smaller than 50mm and larger than 2 mm: 60 to 70 percent
Particles larger than 0.05mm and smaller than 2 mm: 10 to 15 percent
Clay and sludge: 0 to 5 percent
Taking out soil on a construction site, adding a base fertilizer or a compound fertilizer, uniformly mixing, namely mixing immediately, wherein the mixture which is not used up must be covered so as to reduce the moisture of the bagged soil and the fertilizer leakage. The filler must not contain stones, organic materials and domestic garbage. During construction, special attention should be paid to prevent frozen soil in the ecological bag from causing local settlement after the frozen soil in the ecological bag is melted when construction is not performed below 0 ℃.
And (4) bagging the mixed filler by using a shovel. When the bag is filled, the soil in the bag is required to be filled, and after the bag is filled, a special tying belt is adopted for sealing. The filled soil bags are intensively placed on the site for standby, the number of the ecological bags filled every day and the number of the ecological bags built every day are arranged according to the number of workers and a construction plan, and the filled soil bags must be used up as soon as possible, so that solarization and rain are avoided.
5. Side line and slope
And (4) lofting by using a total station instrument to determine a slope toe line, and spraying lime. And then, the side slope line is released by using the upright post of the station house between the side slopes, and the side slope filling sidelines are controlled by inserting rods at two ends of the side slope filling and pulling wires.
6. Laying a first reinforced grating and building a first layer of ecological bag;
the method comprises the steps of laying a first layer of geogrid after cleaning and tamping a roadbed substrate, wherein the geogrid is complete and continuous and has no damage or joint, the lap joint length of each layer of reverse cladding reinforced grid is 1.5 meters, and the lap joint length of a single sheet (about 1.3 meters wide) along the length direction of the retaining wall is 0.15 meter. The length of the exposed side slope of the geogrid is more than 3.5 m. Then, a first ecological bag is built at the position of the side slope line.
7. Tamping the ecological bag, backfilling earthwork in the wall and compacting;
the ecological bag is manually compacted, and the backfilled earthwork in the wall is compacted by a road roller with more than 12 tons.
Filling: adopting middle-low liquid limit clay, sand soil and gravel soil; preferably, gravelly soil and sand soil with certain gradation are adopted; humus soil, frozen soil, chalk soil, diatomite, high liquid limit clay and other special soil are forbidden.
The ecological bag is used as a structural panel, is required to be inwards inclined at 1/100-1/200, and is used as the reservation degree of the panel when the filler is compacted.
All soil layers are paved, the clear distance between the discharged material and the ecological bag is not less than 1.5 m, the running direction of the machine is vertical to the direction of the lacing wire, and all machines cannot run or stop on the grids which are not covered with the filler.
The compaction machine is not less than 1.0 meter from the clear distance of the ecological bag, and light equipment is used for compaction in the range to prevent the dislocation of the panel structure formed by the ecological bag.
The compaction of the reinforced soil filler is required to reach more than 90-95% of the optimal compaction degree. To ensure compaction, the water content of the filler should be optimized. And the compactness is qualified through a field test inspection result and then enters the next procedure.
8. Turning over the first reinforced grating; laying a second reinforced grating, fixedly connecting the second reinforced grating with the first reinforced grating through connecting buckles, and building a second layer of ecological bags;
and the turning length of the geotechnical reinforcement grid is not less than 2500 mm. The reinforced grid connection is shown in fig. 1.
The connector fastener is placed horizontally between the two bags near the edges of the bags so that each connector fastener spans two bags as shown in fig. 2. The tamped bag was shaken so that each standard button pierced just below the medial side of the bag. After each layer of bags is laid, wood boards are placed on the bags and people can step on the wood boards by walking, and the operation is used for ensuring good connection between the connection buttons and the ecological bags. When the bag is laid, the sewing line of the bag is placed inwards on the side to build a flat and beautiful wall.
9. Tamping the backfill in the wall, and repeating the steps until the backfill reaches the designed elevation;
the ecological bag is tamped manually. And compacting the backfill soil by a road roller.
10. Cleaning wall surface
And (4) sweeping and cleaning the construction waste on the surface of the piled ecological bag and the greening platform.
11. Greening
Greening is carried out according to the principle of greening first and then beautifying. The construction firstly realizes the green covering, and provides a good greening and beautifying platform for garden engineers.
Selecting green plant varieties and meeting the quality requirements of seeds and seedlings:
the quality of the seed must meet the viability requirements of the seed and its identification is based on the supplier's standard. Other nursery stocks should refer to Shenzhen greening industry standard.
The greening comprises a spray sowing mode and an inter-planting mode,
(1) and spray seeding
Seeds, fiber materials, a water-retaining agent, a fertilizer, a coloring agent and the like are put into a spray seeding water tank according to a certain proportion; adding water, dissolving the mixed materials in the water for a period of time, and opening a power machine to fully stir the materials until the materials are uniform; pressurizing by a power machine and a water pump; uniformly spraying the mixture to a slope section needing vegetation protection slope by using a spray gun, and covering non-woven fabrics on the slope section to germinate and emerge. If necessary, the slope section of the vegetation slope protection is protected, so that the emergence rate is greatly improved.
(2) And inserting and broadcasting
According to the design requirements of the drawing, the position of the plant planted on the drawing is identified in the field according to the proportion; comparing the size of the soil ball of the nursery stock strip, cutting the ecological bag into a small T-shaped opening by using a knife, and simultaneously uncovering the cut bag piece; taking out soil at the cut position to a size suitable for the carried soil balls by using a flower shovel, and piling the taken soil beside the cut; cutting the nutrition bag of the seedling by using a pruning shear, completely exposing a soil ball, and properly pruning the root system and the branches and leaves of the seedling; placing the seedlings in soil holes, backfilling the soil to the soil holes and sewing edges by using a shovel until the soil is completely backfilled, and covering with bags; for the nursery stock which is just planted, root drenching water must be thoroughly watered; removing impurities such as residual soil, garbage and the like from the site; managing and culturing according to local greening regulations.
Planting time: proper time must be selected for planting under local climate conditions, and the determination of the owners and designers should be obtained before construction.
12. Vegetation maintenance
The survival period is maintained for one month, and the daily management and maintenance date is three months. Timely replanting and fertilizing according to the growth condition. The lawn density is not lower than 80%. The shrubs grow well without diseases and insect pests, and the vines grow on the surface of the bag in a climbing mode.
Materials and apparatus involved in construction
The main materials and machines are shown in Table 1.1
TABLE 1.1 Main materials, machines and tools watch
Quality control
1. Specification and standard: construction is carried out according to the national standards and the requirements of design drawings, such as the technical application of geosynthetics, the experimental regulations of highway geosynthetics, the design specifications for highway environmental protection, the technical specifications of construction slope engineering, the construction and acceptance specifications of urban greening engineering, the engineering measurement specifications and the like. Various materials must meet national standards, industry standards and design requirements. All the materials for entering the field must have quality certificates and retest reports, and the site construction must go into the next procedure after passing the test.
2. Quality assurance measures:
(1) the reinforced grid material must meet the national standard, the industry standard and the design requirement. All the materials must have quality certificate and retest report, and carefully carry out the inspection of variety, specification and geometric dimension and sort and stack.
(2) And making rain-proof drainage measures to prevent the substrate from being soaked by precipitation and prevent the backfilling of the working surface.
(3) The planting soil is filled to a position which is about 7-10cm away from the ecological bag opening, and the ecological bag is filled as full as possible by manually upsetting in the filling process, so that the design requirement is met, the using amount of the ecological bag can be saved, and the later construction quality and effect can be guaranteed.
(4) The ecological bag is packaged in two basic forms, namely sealing by a portable sewing machine and binding sealing, and the sealing is mostly carried out by a binding tape at present, and the part which is 10-15cm away from the bag opening is bound by the binding tape.
(5) Before construction, all tree roots, turf, humus, silt and the like in the range of the ecological bag engineering foundation are dug out, and the bottom of the excavated foundation is leveled and tamped.
(6) The ecological bag is piled up layer by adopting a triangular structure of the plant biological bag, and the ecological bag is fully contacted with the connecting buckle in operation to achieve effective connection.
(7) Vegetation is directly related to the treatment effect and the improvement of the side slope ecological environment, the selected slope protection plants are suitable for the local environmental conditions, and the watering amount and the watering times are ensured in the ecological bag side slope vegetation maintenance period.
Environmental protection measure
1. The construction site adjacent to the municipal works must pay attention to dust treatment in the earthwork construction, in addition to necessary fencing and traffic guidance according to local requirements.
2. The construction section is reasonably arranged, so that the water and soil loss range during construction is reasonable and controllable, and the exposed time and the exposed area of earthwork excavation are reduced as much as possible.
3. And (5) excavating a slope body, and respectively covering by using a black net, color stripe cloth and the like according to the exposed time.
4. Outside the retaining wall foundation, the temporary ponding canal composed of temporary color strip cloth and sand bags is adopted in rainy seasons, the clean overflow can be led into the municipal rainwater pipe, and the silt in the canal is manually cleaned and conveyed to an industrial area to be dried in the sun.
5. And the measures for preventing water and soil loss are integrally adopted, so that the loss of silt along with rainwater is prevented.
6. And taking precautionary measures according to the weather forecast, arranging a corresponding earthwork construction plan in advance, and striving for active precaution.
The structure and the construction method are applied to the construction engineering outdoor retaining wall of China capital market institute, and the retaining wall is filled with ecological soil on three sides of the southeast and the west of the construction engineering outdoor retaining wall, and the total length is about 800 m. The construction date is 03 months to 06 months in 2017, the quality of each inspection lot and each item meets the specification and the design requirement, and the inspection acceptance is qualified.
The structure and the construction method are applied to a southwest retaining wall of an intelligent square in Guangzhou green space, and the total length of the retaining wall is about 1150 m. The construction date is 2015 08-2016-04, and the quality of each inspection batch and each item meets the specification and design requirements, and the inspection acceptance is qualified.
The construction method avoids the outward transportation of earthwork in the construction engineering application of Chinese capital market college, reduces the construction cost by 23 ten thousand yuan and 60 ten thousand yuan compared with the construction period by 50 days and 80 days respectively in advance by adopting the reinforced concrete retaining wall and the rubble retaining wall, avoids the outward transportation of earthwork in the first-stage engineering application of a green place intelligent square, and saves 213 ten thousand yuan compared with the construction period by adopting a grouted rubble retaining wall by 50 days.
The project quality is excellent, and the owners are satisfied, and all the projects obtain the high-quality project award of Guangdong province. The construction method creates a brand-new construction method for the construction of the similar retaining walls, fully reflects the demonstration effect of building science and technology development based on project entities, and has good social benefit.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (10)
1. An ecological geotechnical filling retaining wall is characterized in that the retaining wall is formed by stacking ecological bags, the ecological bags are fixed through a plurality of layers of reinforced gratings, and the reinforced gratings of two adjacent layers are fixed through connecting buckles;
the ecological bag is filled with soil and particles which can freely drain water;
the connecting buckles are inserted into the lattice ribs of the two layers of reinforced grids, span two adjacent ecological bags and are fixed with the ecological bags;
the barricade lateral surface still is provided with plants the coating, plant the coating and depend on forming the ecological bag of barricade lateral surface.
2. The ecological geotechnical filling retaining wall of claim 1, wherein the ecological bag forming the outer side surface of the retaining wall is provided with inserting holes.
3. The ecological geotechnical filling retaining wall according to claim 1, wherein said connecting fastener has fastening barbs uniformly distributed on its upper and lower surfaces, said fastening barbs respectively penetrate into the bottom and top surfaces of the ecological bags of its adjacent upper and lower layers to be fixed.
4. The ecological geotechnical filling retaining wall of claim 1, wherein the soil components in the ecological bag comprise: 10-15% of organic matters, 60-70% of particles with the particle size of less than 50mm and more than 20mm, 10-15% of particles with the particle size of more than 0.05mm and less than 2mm, and 0-5% of clay and sludge.
5. The ecological geotechnical filling retaining wall according to claim 1 or 4, wherein the ecological bag is used as a structural plate surface and is inwardly inclined 1/100-1/200.
6. An ecological geotechnical filling retaining wall construction method is characterized in that the retaining wall is the ecological geotechnical filling retaining wall according to any one of claims 1-5, the filling of the ecological bag is carried out on-site soil taking after a flat base is excavated on a construction site, and base fertilizer or compound fertilizer is added and evenly mixed;
the plant root system passes through the ecological bag and the connecting buckle to grow freely to form a planting layer and fix the soil body.
7. The ecological geotechnical filling retaining wall construction method according to claim 6, characterized in that the construction process is as follows:
1) preparing for construction;
2) excavating a flat substrate; filling soil, mixing and filling ecological bags;
3) checking and accepting the foundation;
4) side paying-off line and gradient;
5) laying a first reinforcement grid and building a first layer of ecological bag;
6) tamping the ecological bag, backfilling earthwork and compacting;
7) turning over the first reinforced grating; laying a second reinforced grating, fixedly connecting the second reinforced grating with the first reinforced grating through connecting buckles, and building a second layer of ecological bags;
8) repeating the steps 6) and 7) until backfilling to the design height;
9) cleaning the wall surface;
10) and greening;
11) and vegetation maintenance.
8. The ecological geotechnical filling retaining wall construction method according to claim 7, wherein the greening includes spray seeding and spot seeding,
the spray seeding mode is as follows: seeds and auxiliary materials including fiber materials, a water-retaining agent, a fertilizer and a coloring agent are put into a spray seeding water tank in proportion; adding water, dissolving the mixed materials in the water, and opening a power machine to fully stir the materials until the materials are uniform; pressurizing by a power machine and a water pump; uniformly spraying the mixture to a slope section needing vegetation slope protection by using a spray gun, and covering a non-woven fabric on the slope section to germinate and sprout;
the inserting mode is as follows: according to the design requirements of the drawing, the position of the plant planted on the drawing is identified in the field according to the proportion; cutting the ecological bag into small T-shaped openings according to the size of soil balls of the nursery stock belts, and simultaneously uncovering the cut bag pieces; taking out soil at the cut position to a size suitable for the carried soil balls, and piling the taken soil beside the cut; cutting the nutrition bag of the nursery stock to expose the soil ball completely, and properly trimming the root system and the branches and leaves of the nursery stock; placing the seedlings in the soil holes, backfilling the soil until the soil holes are completely backfilled, and covering the bag pieces.
9. The method for constructing an ecological earth-engineering filled retaining wall according to claim 7 or 8, wherein the vegetation maintenance is carried out for one month in the survival period and the daily management and maintenance date is three months.
10. The ecological geotechnical filling retaining wall construction method according to claim 6 or 7, characterized in that outside the retaining wall foundation, temporary water accumulation channels are formed by temporary color cloth strips and sand bags in rainy season.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010417489.8A CN111456083A (en) | 2020-05-18 | 2020-05-18 | Ecological geotechnical filling retaining wall and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010417489.8A CN111456083A (en) | 2020-05-18 | 2020-05-18 | Ecological geotechnical filling retaining wall and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111456083A true CN111456083A (en) | 2020-07-28 |
Family
ID=71676613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010417489.8A Pending CN111456083A (en) | 2020-05-18 | 2020-05-18 | Ecological geotechnical filling retaining wall and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111456083A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705695A (en) * | 2009-11-27 | 2010-05-12 | 北京顺天绿色边坡科技有限公司 | Ecological bag reinforced retaining wall |
| CN202969395U (en) * | 2012-10-22 | 2013-06-05 | 北京林业大学 | Flexible ecological wall |
| CN103758139A (en) * | 2014-01-27 | 2014-04-30 | 浙江水利水电学院 | Vegetation type anchor rod ecological bag and slope protection method thereof |
| CN204326011U (en) * | 2014-12-17 | 2015-05-13 | 江苏省水利科学研究院 | A kind of protective ecological bag and slope wall |
| US20160376181A1 (en) * | 2014-03-21 | 2016-12-29 | Nanjing University Ecological Research Institute Of Changshu | In-situ purification island structure and the construction method thereof |
| CN206051687U (en) * | 2016-09-26 | 2017-03-29 | 格丰环保科技有限公司 | A kind of black and odorous water repairing and treating ecological revetment |
| CN106894441A (en) * | 2015-12-19 | 2017-06-27 | 王冠红 | Afforest the reinforced earth bulkhead and greening method of sound absorption function |
| CN107558480A (en) * | 2017-07-07 | 2018-01-09 | 江苏省镇江市路桥工程总公司 | The construction method of the reinforced ecological slope protection structure of roadbed three-dimensional water discharge |
| CN107724330A (en) * | 2017-10-30 | 2018-02-23 | 郑州大学 | A kind of ecosystem and its construction method for lifting the ability of the river self-purification |
| CN212801631U (en) * | 2020-05-18 | 2021-03-26 | 中建八局第二建设有限公司 | Ecological geotechnical filling retaining wall |
-
2020
- 2020-05-18 CN CN202010417489.8A patent/CN111456083A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705695A (en) * | 2009-11-27 | 2010-05-12 | 北京顺天绿色边坡科技有限公司 | Ecological bag reinforced retaining wall |
| CN202969395U (en) * | 2012-10-22 | 2013-06-05 | 北京林业大学 | Flexible ecological wall |
| CN103758139A (en) * | 2014-01-27 | 2014-04-30 | 浙江水利水电学院 | Vegetation type anchor rod ecological bag and slope protection method thereof |
| US20160376181A1 (en) * | 2014-03-21 | 2016-12-29 | Nanjing University Ecological Research Institute Of Changshu | In-situ purification island structure and the construction method thereof |
| CN204326011U (en) * | 2014-12-17 | 2015-05-13 | 江苏省水利科学研究院 | A kind of protective ecological bag and slope wall |
| CN106894441A (en) * | 2015-12-19 | 2017-06-27 | 王冠红 | Afforest the reinforced earth bulkhead and greening method of sound absorption function |
| CN206051687U (en) * | 2016-09-26 | 2017-03-29 | 格丰环保科技有限公司 | A kind of black and odorous water repairing and treating ecological revetment |
| CN107558480A (en) * | 2017-07-07 | 2018-01-09 | 江苏省镇江市路桥工程总公司 | The construction method of the reinforced ecological slope protection structure of roadbed three-dimensional water discharge |
| CN107724330A (en) * | 2017-10-30 | 2018-02-23 | 郑州大学 | A kind of ecosystem and its construction method for lifting the ability of the river self-purification |
| CN212801631U (en) * | 2020-05-18 | 2021-03-26 | 中建八局第二建设有限公司 | Ecological geotechnical filling retaining wall |
Non-Patent Citations (1)
| Title |
|---|
| 孙秀玲等: "《建设项目水土保持与环境保护》", 31 December 2016, 山东大学出版社, pages: 190 - 192 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10221536B1 (en) | System, devices, and/or methods for stabilizing earth | |
| CN106900342B (en) | Integrated semi-lithologic high slope vegetation reconstruction protection method | |
| CN101818499B (en) | Revegetation system on steep rocky slopes and implementing method thereof | |
| WO2015101295A1 (en) | Water and soil conservation and ecological restoration method of high and steep, abandoned slag piles at high elevation with large temperature differential in dry, hot valley | |
| CN107100176B (en) | A kind of expressway slope greening system | |
| CN208266847U (en) | Quickly repair structure in Gullied suitable for Canal in Loess Area | |
| CN110984189A (en) | Slope ecological restoration system and method | |
| CN108901648A (en) | Ecological grass mat and its construction method protected for soil-slope | |
| CN108476648A (en) | A kind of method and system of rock coast Difficult site revegetation | |
| CN110219310B (en) | Frame-type vegetation cement soil slope protection method and facility of water storage and drainage pipe combined multifunctional water drawing reinforced belt | |
| CN210275361U (en) | Mountain hilly area wind-powered electricity generation field sandy soil afforestation resumes construction structures | |
| CN109392582A (en) | A kind of massif slope surface implantation methods | |
| CN110476532A (en) | A kind of ecological restoring method suitable for arid area mine | |
| CN113235623A (en) | Thick-layer base material foreign soil spray-seeding structure suitable for ecological restoration of high and steep slope and construction method thereof | |
| CN110424419A (en) | A kind of construction method of sash beam greening side slope system | |
| CN212801631U (en) | Ecological geotechnical filling retaining wall | |
| CN111887067B (en) | Method for ecological restoration of artificial vegetation on high and steep rock slope | |
| CZ2008145A3 (en) | Green roof, particularly inclined green roof and method of making the same | |
| CN113216222A (en) | Green plant ecological side slope protection system with communication structure and construction method thereof | |
| CN111894015A (en) | Plant fiber blanket side ditch construction method | |
| CN107396722A (en) | A kind of greening method in high and cold mining area | |
| CN112012229A (en) | Ecological restoration system for high steep slope rock slope of limestone mine stope | |
| CN116267079A (en) | Method for recovering vegetation of coal gangue mountain by using starch-based biodegradable plant-growing bag | |
| CN211228533U (en) | Ecological bag | |
| CN111456083A (en) | Ecological geotechnical filling retaining wall and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |