CN210827346U - Flexible frost heaving resistant and scour resistant channel protection facility - Google Patents
Flexible frost heaving resistant and scour resistant channel protection facility Download PDFInfo
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- CN210827346U CN210827346U CN201921749066.5U CN201921749066U CN210827346U CN 210827346 U CN210827346 U CN 210827346U CN 201921749066 U CN201921749066 U CN 201921749066U CN 210827346 U CN210827346 U CN 210827346U
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Abstract
The utility model discloses a flexible frost heaving resistance, antiscour channel safeguard relates to channel engineering technical field. The facility comprises a composite geotextile bag, wherein the composite geotextile bag comprises a slurry filling bag and geotextile sewn with the slurry filling bag, and the slurry filling bag is made of PET (polyethylene terephthalate) cloth; u-shaped grooves are dug on the left side and the right side of the channel, and the length direction of the U-shaped grooves is parallel to the length direction of the channel; the composite geotextile bag is laid on and covered on a plane between the U-shaped groove and the channel, two slope surfaces of the channel and the bottom surface of the channel, the geotextile is covered on the top surface of the grout filling bag, and the left side and the right side of the geotextile bag extend into the U-shaped grooves on the two sides respectively and are pressed and fixed by the backfill soil; the slurry filling bag is filled with slurry, and the composite geotextile bag is clamped and fixed on a supporting surface below the composite geotextile bag through a plurality of inverted U-shaped nails. The facility has the characteristics of excellent deformation coordination adaptability, good freezing resistance, strong scouring resistance, local material availability and the like; the method is suitable for channel protection in alpine regions, and improves the safe service life and the channel water delivery efficiency.
Description
Technical Field
The utility model relates to a channel engineering technical field particularly, relates to a flexible frost heaving resistance, antiscour channel safeguard.
Background
The channel is a water diversion and water delivery building widely applied in water conservancy projects, and under the common condition, the channel water delivery project adopts an open channel to deliver water. Due to the influence of factors such as air temperature, water content and frost heaviness of clay on the side slope of the channel, water level replenishment relation and permeability inside and outside the channel and the like in alpine regions, the rigid channel protective material has damage modes such as bulging, uplifting, supporting, overhead, collapsing and the like, and further influences the long-term use of the channel, the water delivery efficiency and certain economic loss brought by the channel. Therefore, it is increasingly important to develop a new channel protection facility with frost heaving resistance, scouring resistance and strong adaptive deformation capability for alpine regions.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flexible frost heaving resistance, scour resistance channel safeguard, it can alleviate above-mentioned problem.
In order to alleviate the above-mentioned problem, the utility model discloses the technical scheme who takes as follows:
the utility model provides a flexible frost heaving resistant and scouring resistant channel protection facility, which comprises a composite geotextile bag, wherein the composite geotextile bag comprises a grout filling bag and geotextile sewed with the grout filling bag, and the grout filling bag is made of PET (polyethylene terephthalate) cloth;
u-shaped grooves are dug in the left side and the right side of the channel, and the length direction of the U-shaped grooves is parallel to the length direction of the channel;
the composite geotextile bag is laid on a plane between the U-shaped groove and the channel, two slope surfaces of the channel and the bottom surface of the channel, the geotextile is covered on the top surface of the grout filling bag, and the left side and the right side of the geotextile bag extend into the U-shaped grooves on the two sides respectively and are pressed and fixed by backfill soil;
the slurry filling bag is filled with slurry, and the composite geotextile bag is clamped and fixed on a supporting surface below the composite geotextile bag through a plurality of inverted U-shaped nails.
The technical effect of the technical scheme is as follows: because the facility adopts the design of flexible composite geotechnical materials, the facility has the characteristics of excellent deformation coordination adaptability, good freezing resistance, smooth surface, strong scouring resistance, local material availability and the like; the rigid protection facility is more suitable for channel protection in alpine regions compared with the traditional rigid protection facility, the safe service life of the channel protection facility can be effectively prolonged, the integrity of the channel is guaranteed, the water delivery efficiency of the channel is improved, and the ecological environments on two sides of the channel are effectively guaranteed.
Optionally, the upper layer and the lower layer of the pulp filling bag are provided with connecting pieces, the upper connecting pieces correspond to the lower connecting pieces one by one, the corresponding upper connecting pieces and the corresponding lower connecting pieces are connected in a binding mode through connecting ropes, the edge portion of the upper layer and the edge portion of the lower layer of the pulp filling bag are sewn, and the upper layer and the lower layer of the pulp filling bag are formed by overlapping a plurality of small PET (polyethylene terephthalate) fabrics through the connecting pieces.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of the composite geotextile bag filled with slurry in the embodiment of the present invention;
FIG. 2 is a schematic structural view of the channel being constructed and leveled according to the embodiment of the present invention;
FIG. 3 is a schematic structural view of U-shaped grooves dug on two sides of a channel in the embodiment of the present invention;
fig. 4 is a schematic structural view of the embodiment of the present invention when the composite geotextile bag is laid;
fig. 5 is a schematic structural view of the embodiment of the present invention after the composite geotextile bag is filled with slurry and the grouting hole is sewn;
fig. 6 is a schematic structural diagram of the flexible frost heaving resistant and erosion resistant channel protection facility after construction in the embodiment of the present invention;
in the figure: 1-grout filling bag, 2-geotextile, 3-U-shaped groove, 4-backfill soil, 5-U-shaped nail, 6-channel, 7-connecting piece, 8-connecting rope, 9-slurry, 10-unstitched grout hole and 11-stitched grout hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1 and 6, the present embodiment provides a flexible frost heaving and scouring resistant channel protection facility, which includes a composite geotextile bag, wherein the composite geotextile bag includes a slurry filling bag 1 and a geotextile 2 sewn with the slurry filling bag 1, and the slurry filling bag 1 is made of PET fabric;
u-shaped grooves 3 are dug on the left side and the right side of the channel 6, and the length direction of the U-shaped grooves 3 is parallel to the length direction of the channel 6;
the composite geotextile bag is laid and covered on a plane between the U-shaped groove 3 and the channel 6, two slope surfaces of the channel 6 and the bottom surface of the channel 6, the geotextile 2 is covered on the top surface of the grout filling bag 1, and the left side and the right side of the geotextile bag extend and are laid in the U-shaped grooves 3 on the two sides respectively and are pressed and fixed by the backfill material 4;
the slurry filling bag 1 is filled with slurry 9, and the composite geotextile bag is clamped and fixed on a supporting surface below the composite geotextile bag through a plurality of inverted U-shaped nails 5.
In this embodiment, the geotextile 2 is extended and laid in the U-shaped grooves 3 on both sides and is compacted by the backfill material, so that water flow can be prevented from flowing into the bottom of the protective facility from both sides, and damage to the facility can be avoided.
In this embodiment, the U-shaped nails 5 mainly serve to fix the composite geo-bag to the foundation of the channel 6.
In the embodiment, the surface of the channel 6 and the bottom surface of the composite geotextile bag can be kept in good integrity to the greatest extent through the fixing of the U-shaped nail 5, so that the scouring resistance and the deformation adapting property of the facility can be better exerted.
In the flexible frost heaving resistant and scour resistant channel 6 protection facility, due to the adoption of the flexible design, the protection facility has better adaptive deformation capability, and can avoid and prevent rigid protection measure damage modes when used in alpine regions. For example; in the area with lower temperature in winter, the water content of the clay on the side slope of the channel 6 is high, the frost heaviness is strong, the water level outside the channel is higher than the water level in the channel, the continuous supply condition and the geomembrane seepage prevention form are formed, the drainage condition of the side slope is not smooth, the comprehensive influence of the factors such as local pressure bearing, hyperstatic pore water pressure and the like is formed, the protective facilities of the rigid channel 6 are damaged, and the common damage mode mainly comprises the following steps: bulge, bump, prop up, make somebody a mere figurehead and collapse, flexible safeguard because have the adaptive deformation ability, just can effectively avoid the appearance of above-mentioned destruction form.
The construction method of the flexible frost heaving and scour resisting channel protection facility comprises the following steps:
s1, removing sundries on the bottom surface and the slope surface of the channel 6 by using a hooking machine, repairing and leveling the bottom surface and the slope surface of the channel 6, ensuring that the surface of the channel 6 is level, and meeting the design requirement of the water delivery flow of the channel 6, as shown in figure 2;
s2, respectively excavating a U-shaped groove 3 with the width of 30-40 cm and the depth of 50cm at the left side and the right side of the channel 6, wherein the distance between the U-shaped groove 3 at the two sides and the channel 6 is 4-5 m, and the U-shaped groove 3 is used for preventing seepage and fixing the boundary, as shown in figure 3;
s3, sewing the composite geotextile bag according to the design size of the composite geotextile bag, forming a plurality of punching holes on the grout filling bag 1, wherein the grout filling bag 1 is formed by overlapping a plurality of PET (polyethylene terephthalate) fabrics through a connecting piece 7;
s4, laying a composite geotextile bag along the plane between the U-shaped groove 3 and the channel 6, two slope surfaces of the channel 6 and the bottom surface of the channel 6, and covering the geotextile 2 on the top surface of the grout filling bag 1, as shown in FIG. 4;
s5, injecting the evenly-stirred slurry 9 into the slurry filling bag 1 from the slurry flushing holes by using a slurry flushing pump, stopping flushing after the slurry flushing thickness meets the requirement, and sealing each slurry flushing hole by adopting a handheld sewing machine in a sewing way, as shown in figure 5;
s6, sewing and connecting the lap joint parts of the grout filling bag 1 and the geotextile 2 together by adopting a handheld sewing machine;
s7, fixing the composite geotextile bag on a supporting surface below by using U-shaped nails 5, fixing the geotextile 2 in the U-shaped groove 3 by using the U-shaped nails 5, and then backfilling soil into the U-shaped groove 3 to level the U-shaped groove 3, namely backfilling the geotextile bag to be parallel to the ground surface, as shown in figure 6.
In this embodiment, when laying, the mode operation of lining cutting can be adopted to compound geotechnological bag, carries out geotechnological bag along the channel direction promptly and lays, and seam crossing adopts the sewing technique to connect, and the edge adopts U type groove to carry out compaction fixed processing.
In this embodiment, the sewing operation of each overlapped portion of the grout bag 1 is performed at least twice to ensure the sewing quality.
In this embodiment, the sluicing thickness is determined by the flow rate of the water supplied from the channel 6, the water level replenishment condition of the channel 6 along the way, the water content of the soil in the channel 6, the width and the slope ratio of the channel 6, and the like. And determining the water content of the slurry in the stirring process according to the particle composition state of the local soil.
In this embodiment, the weaving aperture of the PET cloth and the geotextile 2 needs to be determined according to the flow velocity and the flow rate of the water transported through the channel 6 and the particle size of the protected soil, so as to ensure the excellent anti-scouring property and the soil conservation property.
This embodiment flexible frost heaving resistant, anti scour channel safeguard has its unique advantage and characteristics, mainly includes: 1) the finished facility has strong anti-aging capability and does not age for 50 years; 2) the anti-freezing capability is strong, and the anti-freezing performance can be improved by-40 ℃; 3) the adaptability to deformation is strong; 4) the cost is low, and each square meter is about 60-70 yuan; 5) the construction is quick and convenient; 6) is suitable for various channels 6; 7) excellent soil retention; 8) high-speed water flow scouring resistance, and the maximum flow velocity of the current test is 5.26m/s and is not damaged; 9) the internal filling material-slurry can be obtained from local materials, channel dredging can be combined with channel sludge removal and filling, sludge occupation is saved, and the two purposes are achieved.
In this embodiment, the upper and lower layers of the pulp filling bag 1 in the step S3 are provided with the connecting members 7, the upper and lower connecting members 7 correspond to each other one by one, the corresponding upper and lower connecting members 7 are bound together by the connecting rope 8, the upper and lower height of the connecting rope 8 is equal to the pulp filling thickness in the step S5, and the connecting members 7 lap-joint the unit parts of the pulp filling bag 1 together, so that the pulp filling bag can be conveniently manufactured to cover a large range, and the subsequent pulp filling operation is facilitated, and the reliability is high.
In the embodiment, the periphery of the filling bag is sewn, the geotextile 2 is also sewn with the periphery of the filling bag, the middle part of the filling bag is overlapped with the small parts through the connecting piece 7, the height of the connecting rope 8 is determined according to the flow velocity and the flow rate of the water conveyed by the channel 6, and the height of the connecting rope 8 is the slurry pouring thickness so as to ensure the protection performance of the protection facility of the channel 6.
In the laying process of the composite geotextile bag, the connecting rope 8 plays a role in connection and fixation, and the U-shaped nail 5 mainly plays a role in fixing the composite geotextile bag and the channel 6 foundation.
In this embodiment, the arrangement form of the whole facility needs to be determined according to the flow velocity and the flow rate of the water flow delivered by the channel 6, and the comprehensive positioning size of various factors such as the width, the height and the slope ratio of the channel 6, and mainly includes: the size of the composite geotextile bag, the number of the U-shaped nails 5, the connecting rope 8, the lap joint width of each adjacent unit part of the grout filling bag 1 and the like.
After the U-shaped groove 3 is filled and leveled, whether the lap joint between the soil engineering bags is tight or not can be checked finally, and the direct connection reliability of the composite soil engineering bags is ensured, and the integrity of the composite soil engineering bags is ensured.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A flexible frost heaving resistant and scour resistant channel protection facility is characterized by comprising a composite geotextile bag, wherein the composite geotextile bag comprises a slurry filling bag and geotextile sewn with the slurry filling bag, and the slurry filling bag is made of PET (polyethylene terephthalate) cloth;
u-shaped grooves are dug in the left side and the right side of the channel, and the length direction of the U-shaped grooves is parallel to the length direction of the channel;
the composite geotextile bag is laid on a plane between the U-shaped groove and the channel, two slope surfaces of the channel and the bottom surface of the channel, the geotextile is covered on the top surface of the grout filling bag, and the left side and the right side of the geotextile bag extend into the U-shaped grooves on the two sides respectively and are pressed and fixed by backfill soil;
the slurry filling bag is filled with slurry, and the composite geotextile bag is clamped and fixed on a supporting surface below the composite geotextile bag through a plurality of inverted U-shaped nails.
2. The flexible frost heaving resistant and scour resistant channel protection facility as claimed in claim 1, wherein the upper and lower layers of the grout bag are provided with connectors corresponding to each other one by one, the corresponding upper and lower connectors are tied by connecting ropes, the upper and lower edge portions of the grout bag are sewn, and the upper and lower layers are formed by overlapping a plurality of small PET cloths through the connectors.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921749066.5U CN210827346U (en) | 2019-10-17 | 2019-10-17 | Flexible frost heaving resistant and scour resistant channel protection facility |
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| CN201921749066.5U CN210827346U (en) | 2019-10-17 | 2019-10-17 | Flexible frost heaving resistant and scour resistant channel protection facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593203B (en) * | 2019-10-17 | 2024-03-08 | 黑龙江省引嫩工程管理处 | Flexible frost heaving resistant and scour resistant channel protection facility and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110593203B (en) * | 2019-10-17 | 2024-03-08 | 黑龙江省引嫩工程管理处 | Flexible frost heaving resistant and scour resistant channel protection facility and construction method |
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