CN117403495A - Embankment drainage structures and reinforced composite embankment - Google Patents
Embankment drainage structures and reinforced composite embankment Download PDFInfo
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- CN117403495A CN117403495A CN202311683825.3A CN202311683825A CN117403495A CN 117403495 A CN117403495 A CN 117403495A CN 202311683825 A CN202311683825 A CN 202311683825A CN 117403495 A CN117403495 A CN 117403495A
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- 239000002131 composite material Substances 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 150
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 29
- 239000010439 graphite Substances 0.000 claims abstract description 29
- 230000005684 electric field Effects 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 description 16
- 239000002689 soil Substances 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004746 geotextile Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/08—Investigation of foundation soil in situ after finishing the foundation structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Agronomy & Crop Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention provides a embankment drainage structure and a reinforced composite embankment, and belongs to the technical field of roadbed engineering. This embankment drainage structures include embankment main part mechanism, shop in multilayer geogrid in the embankment main part mechanism, set up in the graphite carbon felt of the top surface of embankment main part mechanism, install in a plurality of water content apparatus and the control assembly in the embankment main part mechanism, control assembly respectively with graphite carbon felt and multilayer geogrid passes through the wire and is connected, just control assembly respectively with a plurality of water content apparatus signal connection, control assembly is used for forming the electric field based on the detection data control graphite carbon felt of water content apparatus and geogrid electrification to through geogrid's first drainage channel and second drainage channel quick drainage. The invention discharges water in the main body mechanism of the embankment in real time through the improved geogrid so as to keep lower water content, thereby increasing the stability and bearing capacity of the embankment.
Description
Technical Field
The invention belongs to the technical field of roadbed engineering, and particularly relates to a embankment drainage structure and a reinforced composite embankment.
Background
In areas with large rainfall, rainwater is difficult to drain after penetrating into the roadbed structure, the compressive strength and the shear strength of roadbed filler are reduced under the soaking of the rainwater, so that the roadbed is unevenly settled, and soil water loss is easily caused by the impact of the rainwater on the embankment slope, so that the slope is damaged.
At present, two technologies are often adopted for roadbed drainage. One is to construct drainage facilities on the ground and underground, and guide and collect rainwater, slope catchments and melted snow water through the cooperative work of side ditches, drainage ditches, hidden ditches, seepage wells and the like and discharge the rainwater, the slope catchments and the melted snow water out of the range of a road base; the other is to carry out seepage prevention by specially designing the self structure of the roadbed and arranging a water-resisting layer in the roadbed structure layer.
In addition, in the embankment construction engineering, reinforcement materials such as geogrids and geotextiles are generally adopted to carry out reinforcement treatment on the embankment so as to play a role in reinforcing the embankment. The prior geogrid is mainly a two-dimensional grid formed by thermoplastic or mould pressing of high polymer materials such as polypropylene, polyvinyl chloride and the like, and only has a reinforcement effect on the road embankment soil, but can not realize a drainage effect.
Disclosure of Invention
The invention aims to provide a geogrid with drainage and reinforcement functions, which improves a embankment, so that the drainage performance of the embankment drainage structure is good, the stability and durability of the embankment are improved, and the risks of sedimentation and deformation are reduced.
In order to achieve the above object, the present invention provides a embankment drainage structure, comprising,
the embankment main body mechanism comprises a plurality of layers of dielectric layers which are stacked along the height direction, wherein the dielectric layer at the topmost end is a first dielectric layer, the dielectric layer at the bottommost end is a second dielectric layer, and the other dielectric layers are third dielectric layers;
the multi-layer geogrid is characterized in that a layer of geogrid is paved between two adjacent medium layers and at the lower side of the second medium layer respectively, the geogrid is of a multi-layer laminated structure and comprises a first reinforced layer positioned in the middle, two impermeable layers which are respectively arranged at two sides of the first reinforced layer, a drainage layer arranged at one side of each impermeable layer far away from the first reinforced layer, and a reverse filtering layer arranged at one side of each drainage layer far away from the first reinforced layer, wherein each drainage layer comprises a plurality of capillary drainage strips with first drainage channels and second drainage channels formed by interval arrangement of two adjacent capillary drainage strips;
the graphite carbon felt is arranged on the top surface of the first dielectric layer far away from the second dielectric layer;
a plurality of moisture content measuring instruments, wherein at least one moisture content measuring instrument is arranged in each dielectric layer;
the control component is connected with the graphite carbon felt and the plurality of layers of geogrids through wires respectively, and is connected with the plurality of water content measuring instruments through signals respectively;
when the detection data of the water content measuring instrument is smaller than or equal to the preset value, the embankment main body mechanism drains water through the first drainage channels of the two drainage layers of the geogrid; when the detection data of the water content tester is larger than a preset value, the control component is used for controlling the graphite carbon felt and the surface of the geogrid to charge to form an electric field, so that the water in the medium layer moves to the negative electrode under the action of the electric field and is discharged through the first drainage channel and the second drainage channel of the drainage layer of the geogrid.
In a specific embodiment, when multiple dielectric layers drain simultaneously, the control component is used for controlling the graphite carbon felt to be positively charged, and the upper surface of each layer of the geogrid to be negatively charged and the lower surface of each layer of the geogrid to be positively charged, so that the moisture in the dielectric layers moves downwards to drain under the action of an electric field.
In a specific embodiment, when multiple dielectric layers are respectively drained, the control component is used for controlling the graphite carbon felt to be positively charged and the upper surface of the geogrid nearest to the graphite carbon felt to be negatively charged so as to enable the moisture of the first dielectric layer to move downwards to be drained under the action of an electric field; or the control component is used for controlling the lower surface of the geogrid on the upper side of the target medium layer to have positive charges and the upper surface of the geogrid on the lower side of the target medium layer to have negative positive charges so that the water in the target medium layer can be downwards moved and discharged under the action of an electric field, and the target medium layer is any one of the second medium layer and the third medium layers.
In a specific embodiment, each capillary drain strip comprises a drain strip body and a plurality of drain grooves formed by recessing inwards from the drain strip body towards the surface of the reverse filtering layer, and the plurality of drain grooves jointly form a first drain channel of the capillary drain strip.
In a specific embodiment, the drainage groove is a semi-closed circular groove, and the width of the opening of the drainage groove is smaller than the diameter length of the semi-closed circular groove.
In a specific implementation mode, the embankment drainage structure is still including locating separately the rib retaining subassembly that adds of embankment main part mechanism both sides, add the rib retaining subassembly including the water storage layer, and set up in the water storage layer is kept away from the second that embankment main part mechanism one side adds the muscle layer, the water storage layer with geogrid's first drainage channel and second drainage channel intercommunication, the second adds the muscle layer and is formed by double-twisted hexagon wire mesh face and polymer wire net complex.
In a specific embodiment, the aquifer comprises a plurality of first connecting ribs arranged at intervals along a first direction, a plurality of second connecting ribs arranged at intervals along a second direction which is parallel to the first direction, a plurality of water storage cups arranged at the crossing positions of the first connecting ribs and the second connecting ribs, a water seepage channel arranged at the second connecting ribs, and a plurality of water drainage pipes extending along the second direction, wherein the water drainage pipes are communicated with a first water drainage channel and a second water drainage channel of the geogrid, water seepage holes are formed in the water drainage pipes, the water seepage channels are sequentially communicated with the water storage cups, and water in the water storage cups is used for providing water for vegetation layers of a side slope.
In a specific embodiment, the embankment drainage structure further comprises a plurality of permeable pipe groups for collecting water discharged by the geogrid, each layer of permeable pipe group is correspondingly arranged on the geogrid, each permeable pipe group comprises two permeable pipes extending along the longitudinal direction of the embankment main body mechanism and positioned on two sides of the embankment main body mechanism, the first drainage channel and the second drainage channel of the geogrid are communicated with the permeable pipes, and the permeable pipes are communicated with the drainage pipes.
The invention also provides a reinforced composite embankment comprising the embankment drainage structure described above.
In a specific embodiment, the reinforced composite embankment further comprises side slope vegetation layers paved on side slopes at two sides of the embankment drainage structure, and water discharged by the embankment drainage structure can supply water for the side slope vegetation layers.
The beneficial effects of the invention at least comprise:
1. the invention provides a embankment drainage structure, which comprises an embankment main body mechanism, a plurality of layers of geogrids paved in the embankment main body mechanism, a graphite carbon felt arranged on the top surface of the embankment main body mechanism, a plurality of water content measuring instruments and a control assembly, wherein the water content measuring instruments are arranged in the embankment main body mechanism; when the detection data of the water content detector is larger than a preset value, the control component is used for controlling the graphite carbon felt and the surface of the geogrid to charge to form an electric field, so that the water in the medium layer moves towards the negative electrode under the action of the electric field and is discharged through the first drainage channel and the second drainage channel of the drainage layer; the embankment drainage structure provided by the invention can drain water in the embankment main body mechanism in real time by improving the geogrid, and drain water through the electric field in an acceleration way when the water content is larger than a preset value, so that the embankment can keep lower water content all the time by draining the water in the embankment through the geogrid in real time, thereby increasing the stability and bearing capacity of the embankment and reducing the risks of sedimentation and deformation.
2. The geogrid provided by the invention adopts a 7-layer structure, a first reinforcement layer is arranged in the middle, and an impermeable layer, a drainage layer and a reverse filtering layer are symmetrically arranged on two sides of the geogrid, wherein the first reinforcement layer is used for reinforcing a main body mechanism of a embankment, the reverse filtering layer is used for preventing particles from entering the drainage layer to fill drainage channels, the drainage layer forms two drainage channels, and the impermeable layer prevents water from penetrating into the first reinforcement layer; on the one hand, because the structures of the two sides of the first reinforcement layer are the same, the two sides of the geogrid can absorb water by utilizing the capillary principle to reduce the water content of the main body mechanism of the embankment, and on the other hand, the two sides of the geogrid can be electrified and charged simultaneously to participate in the formation of electric fields of different medium layers respectively, so that the different medium layers can drain water by utilizing the first drainage channel and the second drainage channel under the action of the electric field simultaneously, and the drainage efficiency is improved.
3. The reinforced water storage component in the embankment drainage structure provided by the invention comprises the second reinforced layer and the water storage layer, wherein the water storage layer is communicated with the water outlet of the geogrid, so that water discharged by the geogrid can be used for maintaining a vegetation layer of a side slope, the utilization rate of the discharged water is improved on one hand, the ecological greening protection of the side slope is improved on the other hand, and the maintenance cost is reduced.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
Fig. 1 is a schematic perspective view of a embankment drainage structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of the embankment drainage structure of FIG. 1 at an angle;
FIG. 3 is a layer structure view of a geogrid in the embankment drainage structure shown in FIG. 1;
FIG. 4 is a schematic view of an angle of the reinforced water storage assembly in the embankment drainage structure shown in FIG. 1;
FIG. 5 is a schematic view of the second reinforced layer of the reinforced water storage assembly of FIG. 4 at an angle;
FIG. 6 is a schematic view of a partial isometric view of an aquifer of the reinforced water storage assembly of FIG. 4;
FIG. 7 is a schematic view of the aquifer of FIG. 6 from an angular configuration;
fig. 8 is a schematic perspective view of a reinforced composite embankment according to another embodiment of the present invention;
fig. 9 is a schematic view of the structure of the reinforced composite embankment of fig. 8 at an angle.
Detailed Description
The embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be defined and covered in a number of different embodiments according to the claims.
Referring to fig. 1 to 7, the present invention provides a embankment drainage structure 101, the embankment drainage structure 101 includes an embankment body mechanism 10, a multi-layer geogrid 20 laid in the embankment body mechanism 10, two reinforced water storage components 30 separately arranged at two sides of the embankment body mechanism 10, a plurality of permeable tube groups 40 for collecting water discharged from the geogrid 20, a graphite carbon felt 50, a plurality of water content measuring devices 60 installed in the embankment body mechanism 10, and a control component 70 for controlling the geogrid 20 to accelerate drainage based on detection data of the water content measuring devices 60.
The embankment body mechanism 10 includes a plurality of dielectric layers stacked along a height direction, wherein a dielectric layer at a topmost end is a first dielectric layer 11, a dielectric layer at a bottommost end is a second dielectric layer 12, and other dielectric layers are third dielectric layers 13.
In this embodiment, the number of the dielectric layers is four, that is, the number of the third dielectric layers 13 is two, and the two third dielectric layers are located between the first dielectric layer 11 and the second dielectric layer 12. In other embodiments, the third dielectric layer may be 0 layer, 1 layer, 3 layers, or other layers.
In this embodiment, the width (length in the X direction shown in fig. 1) of the embankment body mechanism 10 gradually decreases from the second dielectric layer 12 to the first dielectric layer 11, that is, the cross section of the embankment body mechanism 10 takes a trapezoid shape with a short upper side and a long lower side.
It should be noted that, in the present application, the multiple dielectric layers are named and distinguished by the first dielectric layer, the second dielectric layer, and the third dielectric layer, mainly for convenience of the following description.
In this embodiment, the embankment body mechanism 10 is a fill layer.
The geogrid 20 provided by the invention is of a net structure and is formed by intersecting a plurality of transverse ribs arranged in parallel with each other and a plurality of longitudinal ribs arranged in parallel with each other.
The invention improves the layer structure of the geogrid 20, so that the geogrid 20 not only has a reinforcement function, but also has a real-time drainage function, the water content in the embankment can be reduced, the stability and durability of the embankment are improved, and the risks of sedimentation and deformation are reduced.
In the present invention, a geogrid 20 is respectively laid between two adjacent medium layers and below the second medium layer.
In this embodiment, the number of the geogrids 20 is four, and the four geogrids 20 are respectively disposed between the first medium layer and the third medium layer, between the two third medium layers, between the third medium layer and the second medium layer, and at one side of the second medium layer far away from the first medium layer.
Referring to fig. 3, the geogrid 20 is a multi-layered structure, and includes a first reinforced layer 21 in the middle, two impermeable layers 22 disposed on two sides of the first reinforced layer 21, a drainage layer 23 disposed on one side of each impermeable layer 22 away from the first reinforced layer, and a filtration layer 24 disposed on one side of each drainage layer 23 away from the first reinforced layer 21.
That is, in the embodiment, the geogrid 20 has a seven-layer structure, and the geogrid is provided with two layers except for one layer of the first reinforced layer positioned at the middle, and the geogrid is symmetrically arranged about the first reinforced layer, specifically, from top to bottom, sequentially: one layer of the reverse filtering layer, one layer of the drainage layer, one layer of the impermeable layer, the first reinforcement layer, the other layer of the impermeable layer, the other layer of the drainage layer and the other layer of the reverse filtering layer.
Preferably, the first reinforcement layer 21 is any one of high-strength steel wires, glass fibers and polyester fibers, so that reinforcement of the embankment soil can be achieved.
Preferably, the impermeable layer 22 is a impermeable geotextile that prevents further penetration of water.
Preferably, the drainage layer 23 includes a plurality of capillary drainage strips 231 having a first drainage channel, and a second drainage channel 232 formed by spacing adjacent two capillary drainage strips 231.
In this embodiment, the capillary drainage strip 231 is made of a thin sheet type soft rubber plastic material, and absorbs water by utilizing the capillary principle.
In this embodiment, each capillary drain strip 231 includes a drain strip body 2311, and a plurality of drain grooves 2312 formed to be recessed inward from the surface of the drain strip body 2311 toward the counter filter layer 24, and the plurality of drain grooves 2312 together form a first drain channel of the capillary drain strip 231.
In this embodiment, the number of the capillary drainage strips 231 is two, and the number of the second drainage channels 232 is one.
In this embodiment, the interval between the two capillary drainage strips 231 is 0.5cm, i.e., the width of the second drainage channel 232 is 0.5cm.
Preferably, the drain groove 2312 is a semi-closed circular groove, and the width of the opening of the drain groove 2312 is smaller than the diameter of the semi-closed circular groove.
In this embodiment, each capillary drainage strip 231 includes 5 drainage grooves, the center-to-center distance between two adjacent drainage grooves is 1.5mm, the diameter of the circular groove is 1mm, and the width of the opening of the drainage groove 2312 is 0.3mm.
To facilitate an understanding of the structure of the drain tank 2312, the drain tank 2312 is divided into connected phase portions, a first portion facing the reverse filter layer is a rectangular tank having an opening width of 0.3mm, and a second portion facing the first reinforcement layer is a capillary hole having a diameter of 1mm and being semi-closed.
The width of the opening of the drain groove 2312 is smaller, so that soil particles can be prevented from entering the capillary holes to block the first drain channel.
Preferably, the reverse filtering layer 24 is made of a reverse filtering geotextile, and can prevent infiltration of soil particles when water is infiltrated. In this embodiment, water in the medium layer enters the first and second drain passages of the drain layer 23 through the reverse filter layer 24, and then is drained through the first and second drain passages.
In the present invention, after the geogrid 20 is electrified, both the upper surface and the lower surface of the geogrid 20 can be charged, specifically, the geogrid can be realized by attaching conductive glue or other conductive members to the surface of the geogrid 20, and the charging of the upper surface and the lower surface of the geogrid 20 can be realized by adopting the prior art, which is not improved in the present invention.
Referring to fig. 4 to 7, the reinforced water storage components 30 are disposed on two side slopes of the main body 10 of the embankment, and the functions thereof include two, namely, reinforcing the side slope of the embankment to reduce water and soil loss, and collecting water discharged from the geogrid and supplying the water to the vegetation layer of the side slope, so as to realize recycling of water resources.
The reinforced water storage assembly 30 comprises a second reinforced layer 31 and a water storage layer 32, wherein the water storage layer 32 is arranged between the second reinforced layer 31 and the embankment main body mechanism 10, the second reinforced layer 31 is used for reinforcing a slope, and the water storage layer 32 is communicated with a first drainage channel and a second drainage channel of the geogrid 20 and used for storing water.
Preferably, the second reinforcement layer 31 is formed by compounding the twisted pair hexagonal steel wire mesh surface 311 and the polymer mesh 312, specifically, the two are compounded by a drawn wire thermal bonding process. Namely, the second reinforcement layer 31 is formed by compounding the twisted hexagonal steel wire mesh surface 311 and the polymer mesh 312 through a drawing hot bonding process.
The aquifer 32 comprises a plurality of first connecting ribs 321 arranged at intervals in parallel along a first direction, a plurality of second connecting ribs 322 arranged at intervals in parallel along a second direction which is parallel to the first direction, a plurality of water storage cups 323 arranged at the crossing positions of the first connecting ribs 321 and the second connecting ribs 322, a water seepage channel 324 arranged on the second connecting ribs 322, and a plurality of water drainage pipes 325 extending along the second direction, wherein water seepage holes are formed in the water drainage pipes 325.
In this embodiment, the first direction is the longitudinal direction shown in fig. 7, the second direction is the width direction shown in fig. 7, and meanwhile, the first direction is the Y direction shown in fig. 1, and the second direction is the Z direction shown in fig. 1.
In this embodiment, the first connecting ribs 321 and the second connecting ribs 322 are connected in a cross manner to form a net structure, and a water storage cup 323 is disposed at each crossing position of the first connecting ribs and the second connecting ribs, and the water storage cup 323 has a certain accommodating space.
In this embodiment, the extending direction of the first connecting rib 321 is the second direction, the extending direction of the second connecting rib 322 is the first direction, and the first connecting rib 321 and the drain pipe 325 are arranged in parallel and spaced apart.
The water seepage channel 324 may be a groove formed by recessing downwards from the upper surface of the second connecting rib 322, one end of the water seepage channel 324 is communicated with the water seepage hole of the drain pipe 325, and the other end is communicated with the water storage cup 323.
In this embodiment, a plurality of drain pipes 325 are uniformly spaced along the first direction, and the drain pipes 325 are in communication with the first drain passage and the second drain passage of the geogrid 20, so that water discharged from the geogrid 20 is delivered to the water storage cup 323 through the drain pipes 325 and the water seepage passage 324 for providing water to the vegetation layer of the side slope.
In the present invention, there are four water permeable tube sets 40, and each geogrid 20 is provided with one water permeable tube set 40 to collect water discharged from the geogrid 20.
Each permeable tube group 40 includes two permeable tubes, which are separately disposed at two ends of the geogrid 20, and each permeable tube is disposed (extended) along the length direction of the embankment body mechanism 10, which may also be understood as the Y direction shown in fig. 1.
In this embodiment, the end of the geogrid 20 is wrapped around the water permeable pipe.
In the present embodiment, a plurality of water permeable tube groups 40 are installed in the soil layer of the embankment body mechanism 10.
The graphite carbon felt 50 is installed on the top surface of the first medium layer 11 far away from the second medium layer 12, the graphite carbon felt 50 is electrically connected with the control assembly 70 through a wire, and the control assembly 70 can control the graphite carbon felt 50 to carry positive charges and be matched with the geogrid 20 below the graphite carbon felt to accelerate the discharge of water in the first medium layer 11.
The number of the water content measuring instruments 60 is plural, and the plural water content measuring instruments 60 are respectively in signal connection with the control assembly 70.
Each dielectric layer is provided with at least one moisture content measuring instrument 60, and the moisture content measuring instrument 60 is used for measuring the moisture content in the dielectric layer in real time and sending the detection result to the control component 70.
The control assembly 70 comprises a controller and a power supply, the controller is in signal connection with the power supply and the water content measuring instrument, the power supply is respectively and electrically connected with the graphite carbon felt 50 and the geogrid 20, the controller receives detection data sent by the water content measuring instrument 60 and compares the detection data with a preset value to obtain a comparison result, and when the comparison result is that the detection data is larger than the preset value, the controller also controls the graphite carbon felt 50 to have positive charges and the surface of the geogrid 20 to have positive charges/negative charges so that moisture in the medium layer moves to the negative electrode under the action of an electric field and is discharged through a first drainage channel and a second drainage channel of a drainage layer of the geogrid 20.
Preferably, the negative electrode of the electric field is located below each medium layer, water in the medium layers moves downwards under the action of the electric field and is discharged in an accelerating mode through the first drainage channel and the second drainage channel of the first drainage layer, and the first drainage layer is a drainage layer close to the first medium layer in the two drainage layers of the geogrid.
In the present invention, the preset value is a value determined by a person skilled in the art based on design experience, and may be 1.5%, 2%, 3%, 4%, etc.
Specifically:
when the detected data are greater than the preset value as a result of the comparison, and the medium layers are simultaneously drained, the control assembly 70 is configured to control the graphite carbon felt 50 to be positively charged, and the upper surface of each layer of the geogrid 20 to be negatively charged and the lower surface to be positively charged, so that the water in the medium layers is moved downwards under the action of the electric field to be drained.
When the detection data are larger than the preset value as a plurality of comparison results, and a plurality of medium layers are respectively drained, the control component is used for controlling the graphite carbon felt to be positively charged and the upper surface of the geogrid nearest to the graphite carbon felt to be negatively charged so as to drain the water of the first medium layer; or controlling the lower surface of the geogrid on the upper side of the target medium layer to have positive charges and the upper surface of the geogrid on the lower side of the target medium layer to have negative positive charges so as to drain the water of the target medium layer, wherein the target medium layer is any one of the second medium layer and the third medium layers.
When the layers of the medium layers are respectively drained, the order of draining from top to bottom is adopted, namely, firstly, the first medium layer drains until the water content is reduced below a preset value, then the third medium layer which is more close to the first medium layer drains until the water content is reduced below the preset value, then the third medium layer drains … … which is second and is close to the first medium layer, and finally the second medium layer drains, and correspondingly, the control component 70 controls the geogrids corresponding to the medium layers to be sequentially charged to form an electric field so as to accelerate the water in the medium layer to drain under the action of the electric field.
It is understood that simultaneous drainage of multiple dielectric layers does not mean simultaneous drainage of all dielectric layers, but means all dielectric layers having a water content greater than a preset value; and the same layers of medium layers are used for draining water respectively, and the multi-layer medium layers do not refer to all medium layers, and refer to all medium layers with water content larger than a preset value.
The structure of the geogrid is improved, so that the geogrid has the functions of reinforcement and drainage, and when the detection data of the water content tester is smaller than or equal to the preset value, the embankment main body mechanism 10 drains water through the first drainage channels of the two drainage layers 23; and when the detection data of the water content detector is greater than a preset value, the control assembly 70 controls the graphite carbon felt 50 and the surface of the geogrid 20 to charge to form an electric field, so that the water of the embankment body mechanism 10 moves to the negative electrode under the action of the electric field, and is discharged through the first drainage channel and the second drainage channel of the drainage layer in an accelerating way.
When the detection data of the moisture content meter is less than or equal to the preset value, the surface of the graphite carbon felt 50 and the geogrid 20 is not controlled to be charged, and the capillary drainage strips 231 can suck water flow back into the capillary holes from bottom to top, so that the first drainage channel formed by the capillary drainage strips 231 is mainly used for drainage. At the same time, when the water is discharged, the water sucking and discharging efficiency is increased due to the siphon effect.
The invention also provides a reinforced composite embankment 100, the reinforced composite embankment 100 comprises the embankment drainage structure 101 and side slope vegetation layers 102 paved on side slopes at two sides of the embankment drainage structure, and water discharged by the embankment drainage structure 101 can supply water for the side slope vegetation layers 102.
In this embodiment, the slope vegetation layer 102 is disposed outside the reinforced water storage assembly 30.
Specifically, a layer of soil is laid on the reinforced water storage component 30 of the embankment drainage structure 101, and the slope vegetation layer 102 is planted on the soil, so that the reinforced water storage component 30 can provide moisture for the slope vegetation layer 102, and maintenance cost of the slope vegetation layer is saved.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and is not intended to limit the practice of the invention to such description. It will be apparent to those skilled in the art that several simple deductions and substitutions can be made without departing from the spirit of the invention, and these are considered to be within the scope of the invention.
Claims (10)
1. A embankment drainage structure is characterized by comprising,
the embankment main body mechanism comprises a plurality of layers of dielectric layers which are stacked along the height direction, wherein the dielectric layer at the topmost end is a first dielectric layer, the dielectric layer at the bottommost end is a second dielectric layer, and the other dielectric layers are third dielectric layers;
the multi-layer geogrid is characterized in that a layer of geogrid is paved between two adjacent medium layers and at the lower side of the second medium layer respectively, the geogrid is of a multi-layer laminated structure and comprises a first reinforced layer positioned in the middle, two impermeable layers which are respectively arranged at two sides of the first reinforced layer, a drainage layer arranged at one side of each impermeable layer far away from the first reinforced layer, and a reverse filtering layer arranged at one side of each drainage layer far away from the first reinforced layer, wherein each drainage layer comprises a plurality of capillary drainage strips with first drainage channels and second drainage channels formed by interval arrangement of two adjacent capillary drainage strips;
the graphite carbon felt is arranged on the top surface of the first dielectric layer far away from the second dielectric layer;
a plurality of moisture content measuring instruments, wherein at least one moisture content measuring instrument is arranged in each dielectric layer;
the control component is connected with the graphite carbon felt and the plurality of layers of geogrids through wires respectively, and is connected with the plurality of water content measuring instruments through signals respectively;
when the detection data of the water content measuring instrument is smaller than or equal to a preset value, the embankment main body mechanism drains water through the first drainage channels of the two drainage layers of the geogrid; when the detection data of the water content detector is larger than the preset value, the control component is used for controlling the graphite carbon felt and the surface of the geogrid to charge to form an electric field, so that the water in the medium layer moves to the negative electrode under the action of the electric field and is discharged through the first drainage channel and the second drainage channel of the drainage layer of the geogrid.
2. The embankment drainage structure of claim 1, wherein the control component is used for controlling the graphite carbon felt to be positively charged and the upper surface of each layer of the geogrid to be negatively charged and the lower surface of each layer of the geogrid to be positively charged when a plurality of medium layers drain water simultaneously, so that the water in the medium layers moves downwards to drain under the action of an electric field.
3. The embankment drainage structure according to claim 1, wherein when a plurality of the medium layers are respectively drained, the control component is used for controlling the graphite carbon felt to be positively charged and the upper surface of the geogrid nearest to the graphite carbon felt to be negatively charged so as to enable the water of the first medium layer to be downwards moved and drained under the action of an electric field; or the control component is used for controlling the lower surface of the geogrid on the upper side of the target medium layer to have positive charges and the upper surface of the geogrid on the lower side of the target medium layer to have negative positive charges so that the water in the target medium layer can be downwards moved and discharged under the action of an electric field, and the target medium layer is any one of the second medium layer and the third medium layers.
4. The embankment drainage structure of claim 1, wherein each capillary drain strip comprises a drain strip body and a plurality of drainage channels formed by recessing inwards from the drain strip body towards the surface of the inverted filter, the plurality of drainage channels collectively forming a first drainage channel of the capillary drain strip.
5. The embankment drainage structure according to claim 4, wherein the drainage groove is a semi-closed circular groove, and the width of the opening of the drainage groove is smaller than the diameter and the length of the semi-closed circular groove.
6. The embankment drainage structure according to any one of claims 1 to 5, further comprising reinforced water storage components which are respectively arranged at two sides of the embankment main body mechanism, wherein the reinforced water storage components comprise water storage layers and second reinforced layers which are arranged at one side of the water storage layers, which is far away from the embankment main body mechanism, and the water storage layers are communicated with the first drainage channel and the second drainage channel of the geogrid, and the second reinforced layers are formed by compounding double-twisted hexagonal steel wire mesh surfaces and polymer meshes.
7. The embankment drainage structure of claim 6, wherein the aquifer comprises a plurality of first connecting ribs arranged at intervals along a first direction, a plurality of second connecting ribs arranged at intervals along a second direction which is parallel to the first direction, a plurality of water storage cups arranged at the crossing positions of the first connecting ribs and the second connecting ribs, a water seepage channel arranged at the second connecting ribs, and a plurality of drainage pipes extending along the second direction, wherein the drainage pipes are communicated with the first drainage channel and the second drainage channel of the geogrid, water seepage holes are arranged on the drainage pipes, the water seepage holes of the drainage pipes, the water seepage channels and the water storage cups are sequentially communicated, and water in the water storage cups is used for providing water for a vegetation layer of a side slope.
8. The embankment drainage structure according to claim 7, further comprising a plurality of water permeable tube groups for collecting water drained by the plurality of layers of the geogrid, one water permeable tube group is arranged corresponding to each layer of the geogrid, each water permeable tube group comprises two water permeable tubes extending along the longitudinal direction of the embankment body mechanism and positioned at two sides of the embankment body mechanism, the first drainage channel and the second drainage channel of the geogrid are communicated with the water permeable tubes, and the water permeable tubes are communicated with the drainage pipes.
9. A reinforced composite embankment, characterized in that it comprises the embankment drainage structure according to any one of claims 1 to 8.
10. The reinforced composite embankment of claim 9, further comprising side slope vegetation layers laid on side slopes of the embankment drainage structures, wherein water discharged by the embankment drainage structures can supply water to the side slope vegetation layers.
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