阅读说明：本技术 一种柔性抗冻胀隔仓式渠道防护设施及其施工方法 (Flexible frost heaving resistant partition type channel protection facility and construction method thereof ) 是由 苏安双 于沭 王国志 郑健 高士军 温彦锋 郝建伟 李兆宇 刘迪 王宇 刘倩 于 2021-08-11 设计创作，主要内容包括：本发明公开了一种柔性抗冻胀隔仓式渠道防护设施及其施工方法,属于渠道工程技术领域,该渠道防护设施包括渠道防护设施外部和渠道防护设施内部,渠道防护设施外部为箱式结构,箱式结构的外形为正六面体,箱式结构的迎水流一侧设置有抗冲刷层,其余五个侧面设置有PET布层,渠道防护设施内部设置有若干个均匀的隔仓,相邻隔仓之间设置有隔仓缝合层,隔仓与渠道防护设施外部之间设置有边界连接层,隔仓上部设置有顶层。本发明中渠道防护设施具有柔性和隔仓式的特点,可有效解决高寒地区渠道内水文、混凝土因温度变化易引起渠道土体发生冻胀或渠道边坡衬砌结构发生错位、开裂等破坏问题,以及刚性渠道防护设施适用变形能力弱、透水性弱等缺点。(The invention discloses a flexible anti-frost heaving partition type channel protection facility and a construction method thereof, and belongs to the technical field of channel engineering. The channel protection facility has the characteristics of flexibility and partition type, can effectively solve the damage problems of frost heaving of a channel soil body or dislocation and cracking of a channel side slope lining structure and the like easily caused by temperature change of hydrology and concrete in a channel in a severe cold area, and has the defects of weak deformation capability, weak water permeability and the like of a rigid channel protection facility.)

1. The utility model provides a flexible frost heaving resistant compartment formula channel safeguard, its characterized in that, inside channel safeguard outside and channel safeguard, channel safeguard is outside to be boxed structure, boxed structure's appearance is regular hexahedron, boxed structure's stream one side is provided with anti scouring layer, and all the other five sides are provided with the PET cloth layer, the inside even compartment that is provided with a plurality of channel safeguard, be provided with the compartment between the adjacent compartment and sew up the layer, the compartment with be provided with the boundary connecting layer between the channel safeguard outside, compartment upper portion is provided with the top layer.

2. The flexible frost heave resistant compartmented channel protection according to claim 1, wherein the top layer is a water permeable layer or a water impermeable layer.

3. The flexible frost heave resistant compartmented channel protection facility according to claim 2, wherein the water permeable layer is provided with a PET cloth surface layer and a geotextile surface layer in sequence from top to bottom.

4. The flexible frost heaving resistant bulkhead type channel protection facility of claim 2, wherein the impermeable layer is provided with a PET cloth surface layer, a geomembrane surface layer and a geotextile surface layer in this order from top to bottom.

5. The flexible anti-frost heaving bulkhead channel protection facility of claim 1, wherein the anti-impact brush layer is a composite layer of PET cloth and geotextile.

6. The flexible frost heave resistant compartmented channel protection facility according to claim 1, wherein the compartmented stitched layer is a PET cloth layer and the boundary connecting layer is a composite layer consisting of PET cloth and geotextile.

7. The flexible frost heave resistant compartmented channel protection apparatus according to claim 1, wherein the material of the compartmented vessel is a CADSS composite.

8. The construction method of the flexible frost heaving resistant bulkhead type channel protection facility as claimed in any one of claims 1 to 7, comprising the steps of:

step (1): measuring the groundwater level line of a channel to be built with protective measures, performing a bank slope ratio, a water flow velocity in the channel and a soil geotechnical test on soil materials, and determining the mutual replenishment relation between different positions of water delivery flow and groundwater in the channel and the designed size of the channel;

step (2): determining the laying areas of the water-permeable channel protection facilities and the non-water-permeable channel protection facilities according to the mutual replenishment relations of different positions of the water flow and the underground water in the channel obtained in the step (1) and the designed sizes of the channel, and dividing the laying areas into area areas with regular geometric shapes;

and (3): determining the length and the arrangement density of the U-shaped nails according to the friction force between the flexible frost heaving resistant compartment type channel protection facility and the bank slope, the pulling force generated by the shoulder soil compaction of the channel bank and the additional resistance transferred by the anchor bolts of the slope surface;

and (4): excavating a boundary fixing groove with the width of 20-30cm and the depth of 50cm in parallel along the channel at the position of 0.5-1.0m of the land shoulders at the two sides of the channel;

and (5): paving and filling soil materials in the flexible anti-frost heaving partition type channel protection facilities;

and (6): sewing the top of the filled composite geotextile bag in the step (5), wherein each sewing line needs to be repeatedly sewn for 2-3 times;

and (7): connecting the adjacent single flexible anti-frost heaving partition type channel protection facilities paved in the step (6);

and (8): repeating the steps (4) to (7) to finish the channel interface laying, and reserving a gap of 2-5cm at the splicing position between the protective facilities;

and (9): paving boundary materials extending out of the two sides of the channel on the bank sides, placing the boundary materials into a U-shaped groove, fixing the boundary materials by using U-shaped nails, and backfilling the groove by adopting a layered tamping method after the fixing is finished;

step (10): and (5) repeating the steps (4) to (9) to finish the laying work of the whole channel protection facility.

9. The method for constructing the flexible frost heaving resistant partition type channel protection facilities as claimed in claim 8, wherein a gap of 2-5cm is reserved between the adjacent flexible frost heaving resistant partition type channel protection facilities in the step (7).

10. The method for constructing a flexible frost heaving resistant partition type channel protection facility as claimed in claim 8, wherein during the process of laying the protection material, the interior is fixed by a U-shaped nail, and the boundary is fixed by a combination of a U-shaped groove and the U-shaped nail; the length and the arrangement density of the U-shaped nails can be determined according to the friction force between the composite geotextile bag and the bank slope, the pulling force generated by the soil pressing of the bank shoulder and the additional resistance transferred by the anchor bolts on the slope surface, and the calculation formula is as follows:

in the formula: mu-surface friction coefficient of the composite geotextile bag;

m_soilg-the weight of the composite geotextile bag;

f_cp-staple pretension;

R_f-a friction force generated in the direction of the staple direction force;

R_pull-tension from shore soil compaction;

R_scisadditional resistance to the transmission of the ramp staples;

F_f-the stress component created by the composite geotextile bag and the internal soil mass gravity along the bank slope.

Technical Field

The invention relates to the technical field of channel engineering, in particular to a flexible frost heaving resistant partition type channel protection facility and a construction method thereof.

Background

The channel is as important diversion and water delivery water conservancy project building in hydraulic engineering, especially in industrial water field such as agricultural irrigation and power station, often needs the open channel diversion, and this just needs to study various channel protection facilities in order to prevent that the channel from taking place to destroy, promotes the utilization efficiency of channel. Due to poor tensile property and adaptive deformation capability of the rigid protection facility, the temperature change of hydrology and concrete in the channel in permafrost regions or severe cold regions easily causes frost heaving of the channel soil body or dislocation, cracking and other damages to the lining structure of the side slope of the channel, and the rigid channel protection facility can generate bulge, uplift, support, overhead, collapse and other damage forms, which causes a lot of adverse effects on the water delivery water of the channel. Therefore, a novel channel protection facility which has the pressure resistance and the scouring resistance of the material, and needs to have excellent tensile resistance and good adaptive deformability is provided, the urgency and the importance of the demand are increasingly shown, and particularly, the protection of the channel in permafrost or seasonal frozen soil areas in some alpine regions is extremely important.

Disclosure of Invention

Aiming at the defects or shortcomings, the invention aims to provide a flexible anti-frost heaving partition type channel protection facility and a construction method thereof, which can effectively solve the problem that the damage such as frost heaving of a channel soil body or dislocation and cracking of a channel side slope lining structure are easily caused by the temperature change of hydrology and concrete in a channel in the existing permafrost region or alpine region and the defects of weak deformation capability and weak water permeability of the traditional rigid channel protection facility.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a flexible anti-frost heaving partition type channel protection facility which comprises an outer portion of the channel protection facility and an inner portion of the channel protection facility, wherein the outer portion of the channel protection facility is of a box-type structure, the box-type structure is of a regular hexahedron in shape, an anti-scouring layer is arranged on one side, facing water flow, of the box-type structure, PET cloth layers are arranged on the other five side faces of the box-type structure, a plurality of uniform partitions are arranged in the channel protection facility, partition sewing layers are arranged between adjacent partitions, a boundary connecting layer is arranged between the partitions and the outer portion of the channel protection facility, and a top layer is arranged on the upper portions of the partitions.

Further, the top layer is a water permeable layer or a water impermeable layer.

Further, the water permeability layer is provided with a PET cloth surface layer and a geotechnical cloth surface layer from top to bottom in sequence.

Further, the impermeable layer is sequentially provided with a PET cloth surface layer, a geomembrane surface layer and a geotextile surface layer from top to bottom.

Further, the anti-scouring layer is a composite layer consisting of PET cloth and geotextile.

Furthermore, the compartment sewing layer is a PET cloth layer, and the boundary connecting layer is a composite layer consisting of PET cloth and geotextile.

Further, the material of the compartment is a CADSS composite material, and the CADSS composite material is made of Polyethylene terephthalate (PET) cloth and geotextile.

Further, the geomembrane surface layer is made of a composite geomaterial without permeability, which is formed by combining three materials in the order of PET cloth, geomembrane and geotextile by adopting a hot melting technology.

Furthermore, the filler in the compartment comprises one or more of soil, sand, soil and stone, crushed stone and construction waste.

The invention also provides a construction method of the flexible frost heaving resistant partition type channel protection facility, which specifically comprises the following steps:

step (1): measuring the groundwater level line of a channel to be built with protective measures, performing a bank slope ratio, a water flow velocity in the channel and a soil geotechnical test on soil materials, and determining the mutual replenishment relation between different positions of water delivery flow and groundwater in the channel and the designed size of the channel;

step (2): determining the laying areas of the water-permeable channel protection facilities and the non-water-permeable channel protection facilities according to the mutual replenishment relations of different positions of the water flow and the underground water in the channel obtained in the step (1) and the designed sizes of the channel, and dividing the laying areas into area areas with regular geometric shapes;

and (3): determining the length and the arrangement density of the U-shaped nails according to the friction force between the flexible frost heaving resistant compartment type channel protection facility and the bank slope, the pulling force generated by the shoulder soil compaction of the channel bank and the additional resistance transferred by the anchor bolts of the slope surface;

and (4): excavating a boundary fixing groove with the width of 20-30cm and the depth of 50cm in parallel along the channel at the position of 0.5-1.0m of the land shoulders at the two sides of the channel;

and (5): paving and filling soil materials in the flexible anti-frost heaving partition type channel protection facilities;

and (6): sewing the top of the filled composite geotextile bag in the step (5), wherein each sewing line needs to be repeatedly sewn for 2-3 times;

and (7): connecting the adjacent single flexible anti-frost heaving partition type channel protection facilities paved in the step (6);

and (8): repeating the steps (4) to (7) to finish the channel interface laying, and reserving a gap of 2-5cm at the splicing position between the protective facilities;

and (9): paving boundary materials extending out of the two sides of the channel on the bank sides, placing the boundary materials into a U-shaped groove, fixing the boundary materials by using U-shaped nails, and backfilling the groove by adopting a layered tamping method after the fixing is finished;

step (10): and (5) repeating the steps (4) to (9) to finish the laying work of the whole channel protection facility.

And further, when the flexible anti-frost heaving partition type channel protection facility is laid in the step (5), building templates around the flexible anti-frost heaving partition type channel protection facility, and filling soil into the flexible anti-frost heaving partition type channel protection facility.

Further, a gap of 2-5cm is reserved between the adjacent single flexible anti-frost heaving partition type channel protection facilities in the step (7).

Further, the connection of the adjacent flexible frost heaving resistant partition type channel protection facilities in the step (7) is specifically that a charging type electric iron drill is used for ironing a connecting hole, and finally a connecting rope with the same connecting hole diameter is used and connected in a double-splayed mode.

Furthermore, in the process of laying the protective material, the interior of the protective material is fixed by adopting a U-shaped nail, and the boundary of the protective material is fixed by adopting a mode of combining a U-shaped groove and the U-shaped nail; the length and the arrangement density of the U-shaped nails can be determined according to the friction force between the composite geotextile bag and the bank slope, the pulling force generated by the soil pressing of the bank shoulder and the additional resistance transferred by the anchor bolts on the slope surface, and the calculation formula is as follows:

in the formula: mu-surface friction coefficient of the composite geotextile bag;

m_soilg-the weight of the composite geotextile bag;

f_cp-staple pretension;

R_f-a friction force generated in the direction of the staple direction force;

R_pull-tension from shore soil compaction;

R_scisadditional resistance to the transmission of the ramp staples;

F_f-the stress component created by the composite geotextile bag and the internal soil mass gravity along the bank slope.

The invention has the following advantages:

1. the invention provides a flexible frost heaving resistant partition type channel protection facility, wherein during on-site construction, the exterior of the channel protection facility is designed into a regular hexahedron structure, and template support is carried out in the filling process, so that the regular geometric appearance can be still ensured after soil filling is finished, the construction is finished by adopting a modular splicing (such as jigsaw puzzle) method when the protection facility is laid, and a 2-4cm gap is reserved between adjacent protection facilities, so that the flexible deformation of the channel protection facility caused by frost heaving is met. The channel protection facility has the characteristics of flexibility and partition type, so that the channel protection facility can adapt to frost heaving deformation of soil caused by low temperature of soil, and can limit soil flow and material deformation in the channel protection facility within a minimum range without affecting the whole material through the internal CADSS material for partitioning the partition. Meanwhile, the channel protection facility has excellent water permeability, namely the water inside and outside the channel can be circulated, so that severe deformation and pot cover effect caused by overhigh water content in a channel bank slope are effectively prevented; on the other hand, the channel protection facility has excellent impermeability, when the water level in the channel is higher than the groundwater level, the water flow loss in the channel can be effectively prevented, and the water delivery quality and efficiency of the channel are ensured;

2. the invention provides a flexible frost heaving resistant partition type channel protection facility, wherein a partition type structure is adopted in the channel protection facility, and the structure can divide fillers in materials, so that the phenomenon that the local bulge of the protection facility is caused by the flowing of the materials due to the erosion of water flow can be effectively avoided. Meanwhile, the compartment can play a role in connecting the top surface and the bottom surface, so that the anti-corrosion characteristic of the protective facility is improved, and the safe and stable operation of the channel is ensured;

3. the filler in the compartment in the flexible frost heaving resistant compartment type channel protection facility can be selected from materials such as soil, sand, soil and stone, crushed stone, building waste and the like, the particle size of the filler is limited to a small extent, the selectivity of the filler is high, and the flexible frost heaving resistant compartment type channel protection facility has excellent practicability and applicability; the dry material is filled, so that the problem that the protection effect of the protection facility is influenced due to the fact that the volume of a wet material expands due to low temperature during construction in winter, the volume is reduced due to temperature rise in summer, and the phenomenon of local depression caused by insufficient filling is avoided;

4. the material inside the compartment in the flexible frost heaving resistant compartment type channel protection facility is a CADSS composite material, the CADSS composite material is a flexible material, has excellent adaptive deformation capacity, can be suitable for deformation caused by internal filling volume expansion and deformation caused by channel side slope damage, has high degree of fitting with the channel side slope, and has excellent characteristics of erosion resistance, scouring resistance, frost heaving resistance and the like;

5. the invention provides a construction method of a flexible frost heaving resistant partition type channel protection facility, which aims to prevent the protection facility from sliding down to the bottom of a channel due to the increase of self weight caused by the fact that the protection facility is immersed in water. When the protective facility is subjected to boundary fixing, a structure with the depth of 1m and the width of 0.5m is excavated in parallel to the boundary, then the fixed end of the boundary is placed in a fixed groove and is fixed by a U-shaped nail, and when the U-shaped nail is operated for fixing, the U-shaped nail is incompletely nailed, and a part of the U-shaped nail is left outside, so that the combination degree and the skid resistance after the groove is backfilled can be increased; when the boundary is backfilled, in order to prevent the situation that the weight of the counterweight is too small, so that the uplift resistance and the erosion resistance of the counterweight are weak, and the like, during backfilling, large-sized rock blocks with the thickness of 60-80cm are backfilled, and then a layer of cemented soil is backfilled on the large-sized rock blocks; the construction method can effectively improve the characteristics of erosion resistance, uplift resistance, scouring resistance and the like of the protective facilities, and ensure the safe and stable operation of the water delivery channel;

6. the invention provides a method for calculating the length and the arrangement density of a U-shaped nail in a construction method of the flexible anti-frost heaving partition type channel protection facility. In the process of laying the protective material, the interior of the protective material is fixed by adopting a U-shaped nail, and the boundary of the protective material is fixed by adopting a mode of combining a U-shaped groove and the U-shaped nail. The length and the arrangement density of the U-shaped nails can be determined according to the friction force between the composite geotextile bag and the bank slope, the pulling force generated by the soil pressing of the bank shoulder and the additional resistance transferred by the anchor bolts on the slope surface.

Drawings

FIG. 1 is a top view of the flexible anti-frost heaving bulkhead channel protection of the present invention;

FIG. 2 is a schematic sectional view of the flexible anti-frost heaving partition canal protection device of the present invention with a water permeable top layer;

FIG. 3 is a schematic cross-sectional view of the flexible anti-frost heaving bulkhead channel protection with a water impermeable top layer according to the present invention;

FIG. 4 is a schematic view of the channel boundary cut groove and groundwater level line measurement in the construction method of the flexible frost heaving resistant compartment channel protection facility of the present invention;

FIG. 5 is a schematic laying diagram in the construction method of the flexible anti-frost heaving partition canal protection facility of the invention;

FIG. 6 is a schematic view of the fixation of the flexible frost heaving resistant bulkhead channel protection facility in the construction method of the invention;

FIG. 7 is a schematic structural view of a U-shaped nail in the construction method of the flexible anti-frost heaving partition canal protection facility according to the present invention;

wherein, 1, a box structure; 2. separating the bin; 3. an anti-scouring layer; 4. a PET cloth layer; 5. a compartment sewing layer; 6. a boundary connecting layer; 7. a water permeable layer; 8. a PET cloth surface layer; 9. a geotextile surface layer; 10. a water impermeable layer; 11. a geomembrane surface layer; 12. a U-shaped fixing groove; 13. groundwater level lines on both sides of the channel; 14. flexible frost heaving resistant partition channel protection facilities of the impervious layer; 15. flexible frost heaving resistant partition canal protection facilities of the water permeable layer; 16. a water flow water line of water delivery in the channel; 17. a U-shaped nail; 18. soil material; 19. and (4) lump stones.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Thus, the following detailed description of the embodiments of the present invention 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 derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

This example provides a flexible frost heaving resistant bin type channel protection facility, as shown in fig. 1-3, comprising an exterior of the channel protection facility and an interior of the channel protection facility, the exterior of the channel protection facility is a box structure 1, the box structure 1 is a regular hexahedron in shape, an anti-scouring layer 3 is arranged on the side facing the water flow of the box structure 1, the anti-scouring layer 3 is a composite layer composed of PET cloth and geotextile, the rest five sides are provided with PET cloth layers 4, a plurality of uniform compartments 2 are arranged in the channel protection facility, compartment sewing layers 5 are arranged between adjacent compartments 2, the compartment sewing layers 5 are PET cloth layers, a boundary connecting layer 6 is arranged between the compartments 2 and the exterior of the channel protection facility, the boundary connecting layer 6 is a composite layer composed of PET cloth and geotextile, a top layer is arranged on the upper portion of the compartments 2, a water permeable layer 7 is arranged on the top layer, the water permeable layer 7 is provided with a PET cloth surface layer 8 and a geotextile surface layer 9 in sequence from top to bottom, the filling material in the compartment 2 comprises soil, sand, soil and stone, crushed stone and building waste.

The embodiment also provides a construction method of the flexible frost heaving resistant partition type channel protection facility, which specifically comprises the following steps:

step (1): measuring the groundwater level line of a channel to be built with protective measures, performing a bank slope ratio, a water flow velocity in the channel and a soil geotechnical test on soil materials, and determining the mutual replenishment relation between different positions of water delivery flow and groundwater in the channel and the designed size of the channel;

step (2): determining the laying areas of the water-permeable channel protection facilities and the non-water-permeable channel protection facilities according to the mutual replenishment relations of different positions of the water flow and the underground water in the channel obtained in the step (1) and the designed sizes of the channel, and dividing the laying areas into area areas with regular geometric shapes;

and (3): determining the length and the arrangement density of the U-shaped nails according to the friction force between the flexible frost heaving resistant compartment type channel protection facility and the bank slope, the pulling force generated by the shoulder soil compaction of the channel bank and the additional resistance transferred by the anchor bolts of the slope surface;

and (4): excavating a boundary fixing groove with the width of 20-30cm and the depth of 50cm in parallel along the channel at the position of 0.5-1.0m of the land shoulders at the two sides of the channel;

and (5): paving and filling soil materials in the flexible anti-frost heaving partition type channel protection facilities; when the flexible anti-frost heaving partition type channel protection facility is laid, building templates around the flexible anti-frost heaving partition type channel protection facility, and then filling soil materials to the flexible anti-frost heaving partition type channel protection facility;

and (6): sewing the top of the filled composite geotextile bag in the step (5), wherein each sewing line needs to be repeatedly sewn for 2-3 times;

and (7): connecting the adjacent single flexible anti-frost heaving partition type channel protection facilities paved in the step (6); a gap of 2-5cm is reserved between adjacent single flexible anti-frost heaving partition type channel protection facilities, and the adjacent flexible anti-frost heaving partition type channel protection facilities are connected by specifically adopting a charging type electric iron drill to scald a connecting hole and finally adopting a connecting rope with the same connecting aperture and adopting a double-splayed mode to connect;

and (8): repeating the steps (4) to (7) to finish the channel interface laying, and reserving a 2cm gap at the splicing position between the protective facilities; and (9): paving boundary materials extending out of the two sides of the channel on the bank sides, placing the boundary materials into a U-shaped groove, fixing the boundary materials by using U-shaped nails, and backfilling the groove by adopting a layered tamping method after the fixing is finished;

step (10): repeating the steps (4) to (9) to finish the laying work of the whole channel protection facility;

during the laying process of the protective material, the interior of the protective material is fixed by adopting a U-shaped nail, and the boundary of the protective material is fixed by adopting a mode of combining a U-shaped groove and the U-shaped nail; the length and the arrangement density of the U-shaped nails can be determined according to the friction force between the composite geotextile bag and the bank slope, the pulling force generated by the soil pressing of the bank shoulder and the additional resistance transferred by the anchor bolts on the slope surface, and the calculation formula is as follows:

in the formula: mu-surface friction coefficient of the composite geotextile bag;

m_soilg-the weight of the composite geotextile bag;

f_cp-pre-fastening of the stapleForce;

R_f-a friction force generated in the direction of the staple direction force;

R_pull-tension from shore soil compaction;

R_scisadditional resistance to the transmission of the ramp staples;

F_f-the stress component created by the composite geotextile bag and the internal soil mass gravity along the bank slope.

According to the method for calculating the length and the arrangement density of the U-shaped nails, the U-shaped nails are used for fixing the inside of the protective material in the laying process, and the U-shaped grooves and the U-shaped nails are used for fixing the boundary in a combined mode. The length and the arrangement density of the U-shaped nails can be determined according to the friction force between the composite geotextile bag and the bank slope, the pulling force generated by the soil pressing of the bank shoulder and the additional resistance transferred by the anchor bolts on the slope surface.

The invention aims to prevent the protective facilities from sliding down to the bottom of the channel due to the increase of self weight caused by the immersion of the protective facilities in water. When the protective facility is subjected to boundary fixing, a structure with the depth of 1m and the width of 0.5m is excavated in parallel to the boundary, then the fixed end of the boundary is placed in a fixed groove and is fixed by a U-shaped nail, and when the U-shaped nail is operated for fixing, the U-shaped nail is incompletely nailed, and a part of the U-shaped nail is left outside, so that the combination degree and the skid resistance after the groove is backfilled can be increased; when the boundary is backfilled, in order to prevent the situation that the weight is too small, so that the uplift resistance and the erosion resistance of the boundary are weak, and the like, the boundary is backfilled with large-sized stones with the thickness of 60-80cm, and then a layer of cemented soil is backfilled on the large-sized stones. The construction method can effectively improve the characteristics of erosion resistance, uplift resistance, scouring resistance and the like of the protection facilities, and ensures the safe and stable operation of the water delivery channel.

Example 2

The present example provides a flexible frost heaving resistant bulkhead channel protection, which differs from example 1 only in that: the top layer is impervious layer, and impervious layer has set gradually PET cloth top layer, geomembrane top layer and geotechnological cloth top layer from last to down, and all the other steps and parameter are the same.

The construction method of the flexible anti-frost heaving partition type channel protection facility of the embodiment refers to embodiment 1.

Example 3

The embodiment provides a flexible frost heaving resistant partition type channel protection facility and a construction method thereof, and the difference from the embodiment 1 is only that: in the construction method, a 5cm gap is reserved at the splicing position between the protective facilities in the step (8), and the other steps and parameters are the same.

Example 4

The embodiment provides a flexible frost heaving resistant partition type channel protection facility and a construction method thereof, and the difference from the embodiment 1 is only that: in the construction method, a 3cm gap is reserved at the splicing position between the protective facilities in the step (8), and the rest steps and parameters are the same.

The foregoing is merely exemplary and illustrative of the present invention and it is within the purview of one skilled in the art to modify or supplement the embodiments described or to substitute similar ones without the exercise of inventive faculty, and still fall within the scope of the claims.