CN114164802A - Gabion structure for preventing flood drainage channel from frost heaving damage in high and cold areas and construction method - Google Patents
Gabion structure for preventing flood drainage channel from frost heaving damage in high and cold areas and construction method Download PDFInfo
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- CN114164802A CN114164802A CN202111342517.5A CN202111342517A CN114164802A CN 114164802 A CN114164802 A CN 114164802A CN 202111342517 A CN202111342517 A CN 202111342517A CN 114164802 A CN114164802 A CN 114164802A
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 32
- 239000004746 geotextile Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 51
- 239000010959 steel Substances 0.000 claims description 51
- 238000009412 basement excavation Methods 0.000 claims description 22
- 239000011241 protective layer Substances 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 208000001034 Frostbite Diseases 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008961 swelling Effects 0.000 abstract description 2
- 238000009991 scouring Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000004162 soil erosion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/14—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against frost heaves in soil
Abstract
The invention relates to a gabion structure for preventing a flood discharge channel from frost heaving damage in a high and cold area and a construction method, wherein geotextile is laid at the bottom of the flood discharge channel, a bottom check net box is placed on the geotextile, a left check net box is placed on the left side above the bottom check net box, a right check net box is placed on the right side above the bottom check net box, the tops of the right check net box and the left check net box are aligned with the top of the flood discharge channel, and filling pebbles are filled in the bottom check net box, the left check net box and the right check net box; backfill is arranged between the bottom check net box and the left check net box as well as between the left check net box and the left slope of the drainage channel, and backfill is arranged between the bottom check net box and the right check net box as well as between the right check net box and the right slope of the drainage channel; and a geomembrane is arranged between the backfill soil and the net cage. The system is reasonable in design and convenient to implement, and can effectively prevent the problem of water and soil loss caused by scouring of the slope bank of the flood drainage channel; the construction safety and effectiveness of the flood discharge channel and the flood control embankment can be simultaneously guaranteed. Is particularly suitable for the frozen swelling soil environment in northwest areas.
Description
Technical Field
The invention relates to the technical field of flood discharge channels and flood control dams, in particular to a gabion structure for preventing flood discharge channels from frost heaving damage in high and cold regions and a construction method.
Background
With the development of mine enterprises in northwest areas of China, large-scale underground mining causes large-area underground mining in the process of mining, underground water is drained, the soil water retention capacity and fertilizer efficiency are reduced, the coverage rate of surface vegetation is reduced, and the value of farmland farming is lost. The deformation of the earth surface and the deterioration of the unstable living environment condition of the building, particularly the serious water and soil loss are easily caused under the special geological condition in the northwest region, so that the phenomena can be prevented by arranging special flood discharge channel protection measures.
Disclosure of Invention
The application provides a gabion structure and a construction method for preventing flood drainage channels from frost heaving damage in alpine regions in order to solve the technical problems.
The application is realized by the following technical scheme:
according to the gabion structure for preventing the flood discharge channel from frost heaving damage in the alpine region, geotextile is laid at the bottom of the flood discharge channel, a bottom check net box is placed on the geotextile, a left check net box is placed on the left side above the bottom check net box, a right check net box is placed on the right side above the bottom check net box, the tops of the right check net box and the left check net box are aligned with the top of the flood discharge channel, and filling pebbles are filled in the bottom check net box, the left check net box and the right check net box;
backfill is arranged between the bottom check net box and the left check net box as well as between the left check net box and the left slope of the drainage channel, and backfill is arranged between the bottom check net box and the right check net box as well as between the right check net box and the right slope of the drainage channel; and a geomembrane is arranged between the backfill soil and the net cage.
Particularly, the width of the bottom check net box is equal to that of the flood drainage channel bottom.
Optionally, the left check net box, the left second check net box and the left third check net box are sequentially overlapped from bottom to top to form the left check net box;
and the right check guest net cage, the right two check guest net cages and the right three check guest net cages are sequentially overlapped from bottom to top to form the right check guest net cage.
Optionally, the left side surfaces of the bottom check net box, the left two check net box and the left three check net box are aligned up and down; the right side surfaces of the bottom check net box, the right two check net boxes and the right three check net boxes are aligned up and down.
Optionally, the right sides of the left check net box, the left two check net box and the left three check net box form a ladder structure, and the left sides of the right check net box, the right two check net box and the right three check net box form a ladder structure.
Optionally, each net cage is a rectangular net cage and comprises 6 rectangular net panels;
the rectangular net panel comprises a frame fixing steel wire and a net surface woven by the net surface steel wire, and the frame fixing steel wire is connected with the net surface steel wire through a binding steel wire.
Optionally, the wire mesh is coated with a PVC protective layer.
Particularly, the earth cover is arranged from the center of the top of the left check net box to the left, and the earth cover extends to the ground of a flood discharge channel of the left bank to form a slope of three thousandth; and covering soil is arranged from the center of the top of the right check net box to the right side, and the covering soil extends until the ground of the flood discharge channel on the right bank to form a three-thousandth slope.
The application provides a flood discharge canal construction method for preventing flood discharge canal frost heaving damage in alpine regions, includes the following steps:
placing a left check net box on the left side above the bottom check net box, placing a right check net box on the right side above the bottom check net box, and filling pebble stones in the left check net box and the right check net box;
respectively placing a left check net cage and a right check net cage above the left check net cage and the right check net cage; a left check-guest net cage and a right check-guest net cage are respectively arranged above the left check-guest net cage and the right check-guest net cage, and pebble stones are filled in the left check-guest net cage, the right check-guest net cage, the left check-guest net cage and the right check-guest net cage;
and 4, backfilling soil between the left geomembrane and the excavation surface and between the right geomembrane and the excavation surface, and tamping the backfilled soil.
Optionally, lime and cement are doped into the backfill soil.
Compared with the prior art, the method has the following beneficial effects:
this application reasonable in design, it is convenient to implement, can prevent effectively that the flood drainage ditch bank is washed away the soil erosion problem that leads to.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a sectional view of a preliminary excavation surface in an example;
FIG. 2 is a top view of a rough excavation surface in an example;
FIG. 3 is a cross-sectional view of a bottom check box arrangement in an embodiment;
FIG. 4 is a top view of a bottom check box arrangement in an embodiment;
figure 5 is a cross-sectional view of the gabion structure of the example;
figure 6 is a top plan view of the gabion structure of an embodiment;
FIG. 7 is a diagrammatic illustration of a bingo box in an embodiment;
FIG. 8 is a diagram of a bingo box component in an embodiment;
in the figure: 1-flood discharge channel ground, 2-excavation surface, 3-channel bottom plane, 4-geotextile, 5-bottom check net box, 6-left check net box, 7-right check net box, 8-left check net box, 9-right check net box, 10-left check net box, 11-right check net box, 12-left geomembrane, 21-right geomembrane, 13-backfill soil, 14-mesh surface steel wire, 15-PVC protective layer, 16-frame fixing steel wire, 17-filling pebble, 18-top cover, 19-end plate, 20-panel and 22-binding steel wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely used for convenience of description and simplification of description, and do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "right one," "right two," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1, the flood discharge channel construction method for preventing frost heaving damage of the flood discharge channel in the alpine region disclosed in the present embodiment includes the following steps:
And 2, placing a bottom check net box 5 on the geotextile 4 on the trench bottom plane 3, wherein the bottom check net box 5 is filled with pebble stones. As shown in fig. 3 and 4;
a left check guest net box 6 is arranged on the left side above the bottom check guest net box 5, a right check guest net box 7 is arranged on the right side above the bottom check guest net box 5, and pebble stones are filled in the left check guest net box 6 and the right check guest net box 7;
a left check net box 8 and a right check net box 9 are respectively arranged above the left check net box 6 and the right check net box 7; a left check-guest net box 10 and a right check-guest net box 11 are respectively arranged above the left check-guest net box 8 and the right check-guest net box 9, and pebble stones are filled in the left check-guest net box 8, the right check-guest net box 9, the left check-guest net box 10 and the right check-guest net box 11;
optionally, the left side surfaces of the bottom check net box 5, the left check net box 6, the left two check net box 8 and the left three check net box 10 are aligned up and down; the right side faces of the bottom check net box 5, the right first check net box 7, the right second check net box 9 and the right third check net box 11 are aligned up and down.
and 4, backfilling soil 13 between the left geomembrane 12 and the left slope of the excavation surface 2 and between the right geomembrane 21 and the right slope of the excavation surface 2, as shown in fig. 5 and 6.
The soil on the ground 1 of the flood discharge channel is frost heaving soil. Optionally, a proper amount of lime and cement are mixed into the backfilled backfill soil 13; when the backfilled backfill soil 13 is backfilled, the compaction coefficient is required to be more than or equal to 0.9 through repeated tamping.
Alternatively, as shown in fig. 7, the bottom check-up net cage 5, the left check-up net cage 6, the right check-up net cage 7, the left two check-up net cage 8, the right two check-up net cage 9, the left three check-up net cage 10, and the right three check-up net cage 11 each include a top cover 18 and a case 19, and the top cover 18 is openable. Specifically, the net cage is rectangular, the box body 19 has 5 rectangular net panels 20, and the top cover 18 has one rectangular net panel 20.
As shown in fig. 8, the rectangular net panel 20 is woven by using the net surface wires 14. The rectangular net panel 20 is reinforced by the frame fixing steel wire 16, and the frame fixing steel wire 16 is connected with the net surface steel wire 14 through the binding steel wire 22.
Optionally, the wire mesh 14 is a low carbon wire.
In particular, the mesh surface steel wire 14 is coated with a PVC protective layer 15, and the mesh surface steel wire has the characteristics of corrosion resistance, ageing resistance and high shearing resistance. Preferably, the outer layers of the mesh surface steel wires 14, the binding steel wires 22 and the frame fixing steel wires 16 are all covered with a PVC protective layer 15.
This embodiment adopts check guest's net cage to consolidate the construction, forms the gabion structure that is applicable to the severe cold district and prevents the flood discharge canal frost heaving damage, can improve the washing away defect of traditional flood discharge canal, does benefit to and prevents to cause serious soil erosion and water loss, when guaranteeing construction safety, has still improved the efficiency of construction on-the-spot, very big enhancement the stability of flood discharge canal.
Example two
In the embodiment, the soil on the ground 1 of the flood drainage channel is frost heaving soil. The depth of the excavation surface 2 is 3m, the width of the slope top of the excavation surface 2 is 8.6m, and the horizontal included angle between the excavation surface 2 and the channel bottom is 60 degrees.
The width of the trench bottom plane 3 is 5.2 m; the width of the geotextile 4 laid on the trench bottom plane 3 is 5.2m, and the thickness of the geotextile 4 is 2.0 mm.
Optionally, the bottom check-up net cage 5 is 6m long, 5.2m wide and 0.5m high; the diameter of the mesh surface steel wire 14 of the bottom check net box 5 is 4.0 mm; the diameter of the binding steel wire 22 of the bottom check net box 5 is 2.2 mm; the diameter of the frame fixing steel wire 16 of the bottom check net box 5 is 5.0 mm; the outer layers of the mesh surface steel wire 14, the binding steel wire 22 and the frame fixing steel wire 16 of the bottom check box 5 are all wrapped with a PVC protective layer 15 with the diameter of 1.0 mm; 80-85% of the filled pebbles in the bottom check net cage 5 are 100-150 mm in diameter, and the rest particle size is 10-50 mm;
optionally, the left check net box 6 is 3m long, 1.5m wide and 1.0m high; the diameter of the net surface steel wire 14 of the left check-up net box 6 is 4.0mm, the diameter of the binding steel wire 22 is 2.2mm, and the diameter of the frame fixing steel wire 16 is 5.0 mm. The right check net box 7 is 3m long, 1.5m wide and 1.0m high; the diameter of the net surface steel wire 14 of the right check-up net box 7 is 4.0mm, the diameter of the binding steel wire 22 is 2.2mm, and the diameter of the frame fixing steel wire 16 is 5.0 mm.
Optionally, the left-two check-guest net cage 8 is 3m long, 1.2m wide and 1.0m high; the diameter of the net surface steel wire 14 of the left-two check-guest net box 8 is 4.0mm, the diameter of the binding steel wire 22 is 2.2mm, and the diameter of the frame fixing steel wire 16 is 5.0 mm; the right two-check net box 9 is 3m long, 1.2m wide and 1.0m high; the diameter of the mesh surface steel wire 14 of the right two-check-guest net box 9 is 4.0mm, the diameter of the binding steel wire 22 is 2.2mm, and the diameter of the frame fixing steel wire 16 is 5.0 mm.
Optionally, the left three-check-guest net cage 10 is 3m long, 1.0m wide and 0.5m high; the diameter of the net surface steel wire 14 of the left check net box 10 is 4.0mm, the diameter of the binding steel wire 22 is 2.2mm, and the diameter of the frame fixing steel wire 16 is 5.0 mm. The right three-check net box 11 is 3m long, 1.0m wide and 0.5m high; the diameter of the mesh surface steel wire 14 of the right three-check net box 11 is 4.0mm, the diameter of the binding steel wire 22 is 2.2mm, and the diameter of the frame fixing steel wire 16 is 5.0 mm.
The check net box is formed by twisting the net surface steel wire 14 and the binding steel wire 22 to form a net surface, and then binding the net surface steel wire 22 to the frame fixing steel wire 16 to form a shape which is in accordance with the design.
Optionally, the width of the left geomembrane 12 and the right geomembrane 21 is 3.0m, and the thickness of the left geomembrane 12 and the right geomembrane 21 is 2.0 mm.
After backfilling, the backfilled backfill soil 13 extends to the ground 1 on two sides of the flood discharge channel to form a slope of three thousandths from the left three-check-guest net box 10 and the right three-check-guest net box 11;
after the depth and the width of the flood drainage channel are surveyed as shown in fig. 1 and fig. 2, the gradient of an excavation surface 2 is determined, the width of a channel bottom plane 3 is excavated, and geotextile 4 is laid on the channel bottom plane 3;
it is worth to be noted that after backfilling, the backfilled soil 13 is covered with soil from the middle of the left three-check net box 10 to the left side, and the flood discharge channel ground 1 extending to the left bank forms a slope of three thousandth; and covering soil from the middle part of the right three-check net box 11 to the right side, and extending to the flood discharge channel ground 1 of the right bank to form a slope of three per thousand.
This application reasonable in design, it is convenient to implement, can prevent effectively that the flood drainage ditch bank is washed away the soil erosion problem that leads to. The invention is beneficial to simultaneously ensuring the construction safety and effectiveness of the flood discharge channel and the flood control dam. Is particularly suitable for the frozen swelling soil environment in northwest areas.
The above embodiments are provided to explain the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The high and cold area prevents that flood discharge channel from frostbite and bloated gabion structure of damage, its characterized in that: the bottom of the flood discharge channel is laid with geotextile (4), a bottom check-in net box (5) is placed on the geotextile (4), a left check-in net box is placed on the left side above the bottom check-in net box (5), a right check-in net box is placed on the right side above the bottom check-in net box (5), the tops of the right check-in net box and the left check-in net box are aligned with the top of the flood discharge channel, and filling pebbles are filled in the bottom check-in net box (5), the left check-in net box and the right check-in net box;
backfill is arranged between the bottom check net box (5) and the left check net box as well as between the left check net box and the left slope of the drainage channel, and backfill is arranged between the bottom check net box (5) and the right check net box as well as between the right check net box and the right slope of the drainage channel; and a geomembrane is arranged between the backfill soil and the net cage.
2. The alpine region gabion structure for preventing flood drainage canals from frost heaving damage according to claim 1, characterized in that: the width of the bottom check box (5) is equal to that of the flood drainage channel bottom.
3. The alpine region gabion structure for preventing frost heaving damage of the flood drainage channel according to claim 1 or 2, characterized in that: the left check net box (6), the left second check net box (8) and the left third check net box (10) are sequentially overlapped from bottom to top to form the left check net box;
and the right check guest net box (7), the right two check guest net boxes (9) and the right three check guest net boxes (11) are sequentially overlapped from bottom to top to form the right check guest net box.
4. The alpine region gabion structure for preventing flood drainage canals from frost heaving damage according to claim 3, characterized in that: the left side surfaces of the bottom check net box (5), the left check net box (6), the left two check net boxes (8) and the left three check net boxes (10) are aligned up and down; the right side surfaces of the bottom check net box (5), the right check net box (7), the right two check net boxes (9) and the right three check net boxes (11) are aligned up and down.
5. The alpine region gabion structure for preventing flood drainage canals from frost heaving damage according to claim 3, characterized in that: the right sides of the left first check net box (6), the left second check net box (8) and the left third check net box (10) form a ladder structure, and the left sides of the right first check net box (7), the right second check net box (9) and the right third check net box (11) form a ladder structure.
6. The alpine region gabion structure for preventing frost heaving damage of a flood drainage channel according to claim 1, 2, 4 or 5, wherein: each net cage is a rectangular net cage and comprises 6 rectangular net panel plates (20);
the rectangular net panel (20) comprises a frame fixing steel wire (16) and a net surface woven by a net surface steel wire (14), and the frame fixing steel wire (16) is connected with the net surface steel wire (14) through a binding steel wire (22).
7. The alpine region gabion structure for preventing flood drainage canals from frost heaving damage according to claim 6, characterized in that: the mesh surface steel wire (14) is coated with a PVC protective layer (15).
8. The alpine region gabion structure for preventing flood drainage canals from frost heaving damage according to claim 1, characterized in that: covering soil is arranged from the center of the top of the left check net box to the left, and the covering soil extends to the flood discharge channel ground (1) of the left bank to form a slope of three thousandth; and covering soil is arranged from the center of the top of the right check net box to the right side, and the covering soil extends to the flood discharge channel ground (1) of the right bank to form a three-thousandth slope.
9. Flood discharge canal construction method for preventing flood discharge canal frost heaving damage in alpine regions is characterized in that: the method comprises the following steps:
step 1, determining the gradient of an excavation surface (2) and the width of a channel bottom plane (3); digging excavation surfaces (2) at two sides of a flood drainage channel ground (1), and paving geotextile (4) on a channel bottom plane (3) at the channel bottom after excavation;
step 2, placing a bottom check net box (5) on the geotextile (4) of the trench bottom plane (3), wherein pebble stones are filled in the bottom check net box (5);
a left check guest net cage (6) is placed on the left side above the bottom check guest net cage (5), a right check guest net cage (7) is placed on the right side above the bottom check guest net cage (5), and pebble stones are filled in the left check guest net cage (6) and the right check guest net cage (7);
a left check net box (8) and a right check net box (9) are respectively arranged above the left check net box (6) and the right check net box (7); a left three-check-guest net box (10) and a right three-check-guest net box (11) are respectively arranged above the left two-check-guest net box (8) and the right two-check-guest net box (9), and pebble stones are filled in the left two-check-guest net box (8), the right two-check-guest net box (9), the left three-check-guest net box (10) and the right three-check-guest net box (11);
step 3, paving a left geomembrane (12) on the left sides of the bottom check net box (5), the left check net box (6), the left two check net boxes (8) and the left three check net boxes (10); paving a right geomembrane (21) on the right side surfaces of the bottom check net box (5), the right check net box (7), the right two check net boxes (9) and the right three check net boxes (11);
and 4, backfilling soil (13) between the left geomembrane (12) and the excavation surface (2) and between the right geomembrane (21) and the excavation surface (2), and tamping the backfilled soil (13).
10. Flood discharge canal construction method for preventing flood discharge canal frost heaving damage in alpine regions is characterized in that: the backfill soil (13) is mixed with lime and cement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111342517.5A CN114164802A (en) | 2021-11-12 | 2021-11-12 | Gabion structure for preventing flood drainage channel from frost heaving damage in high and cold areas and construction method |
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| CN202111342517.5A CN114164802A (en) | 2021-11-12 | 2021-11-12 | Gabion structure for preventing flood drainage channel from frost heaving damage in high and cold areas and construction method |
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