CN110924381A - Seepage-proofing structure of geotechnical engineering side slope - Google Patents
Seepage-proofing structure of geotechnical engineering side slope Download PDFInfo
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- CN110924381A CN110924381A CN201911260752.0A CN201911260752A CN110924381A CN 110924381 A CN110924381 A CN 110924381A CN 201911260752 A CN201911260752 A CN 201911260752A CN 110924381 A CN110924381 A CN 110924381A
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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Abstract
The invention provides a water seepage prevention structure of a geotechnical engineering side slope, and relates to the technical field of geotechnical engineering. The utility model provides a seepage prevention structure of geotechnical engineering side slope, including the slope body, still include the water retaining channel that slope body upper portion set up, the bottom of slope body is equipped with blocks the dam, one side that the slope body was kept away from to block the dam is equipped with the drainage canal, the surface covering of slope body is equipped with one-level prevention of seepage water layer, the water retaining channel, one-level waterproof layer surface corresponds the intercommunication with the drainage canal, be equipped with second grade prevention of seepage water layer between slope body and the one-level prevention of seepage water layer, second grade prevention of seepage water layer is including setting up the first rete on slope body surface, the rubble soil layer that first rete surface set up, still include the second rete that rubble soil layer surface set up, it is the water permeable stratum to block dam and second grade prevention of seepage water layer contact part, be equipped with the water. The invention solves the problem that the slope structure adopted at the present stage can not play an effective waterproof role in the slope treatment engineering of geotechnical engineering.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering, in particular to a water seepage prevention structure of a geotechnical engineering side slope.
Background
Geotechnical engineering is a new technical system established in civil engineering practice in 60 s of the 20 th century in European and American countries. Geotechnical engineering is to solve the problems of rock and soil engineering, including foundation and foundation, slope and underground engineering.
In the slope treatment engineering of geotechnical engineering, the adverse effect on slope stability mainly comes from surface water and underground water, and the formation of the surface water and the underground water is mainly rainfall. Water is an important factor in causing slope instability, and can cause the following adverse effects: the water in the slope body can cause the self weight of the slope body structure to increase, and the sliding force under the side slope is correspondingly increased; the water in the slope body can reduce the physical and mechanical properties of the slope body structure and reduce the stability of the slope; the groundwater in the slope body generates hydrostatic pressure, seepage force and the like to influence the slope stability. For slope engineering, the treatment of water, i.e. how to prevent rainwater and slope water from infiltrating, is usually the priority. The slope structure adopted at the present stage can not play an effective waterproof role, so that water penetrates into the earth surface from the surface and then permeates into a slope soil layer, the dead weight of the slope structure is increased, the slope is finally induced to slide downwards, a landslide accident is caused, and great loss is caused to the property of people.
In summary, we propose a seepage-proofing structure for geotechnical engineering side slopes to solve the above problems.
Disclosure of Invention
The invention aims to provide a water seepage prevention structure for a geotechnical engineering side slope, which solves the problem that the side slope structure adopted at the present stage in the existing geotechnical engineering side slope treatment engineering cannot play an effective waterproof role.
The embodiment of the invention is realized by the following steps:
the utility model provides a seepage prevention structure of geotechnical engineering side slope, including the slope body, still include the water retaining channel that slope body upper portion set up, the bottom of slope body is equipped with blocks the dam, one side that the slope body was kept away from to block the dam is equipped with the drainage canal, the surface covering of slope body is equipped with one-level prevention of seepage water layer, the water retaining channel, one-level waterproof layer surface corresponds the intercommunication with the drainage canal, be equipped with second grade prevention of seepage water layer between slope body and the one-level prevention of seepage water layer, second grade prevention of seepage water layer is including setting up the first rete on slope body surface, the rubble soil layer that first rete surface set up, still include the second rete that rubble soil layer surface set up, it is the water permeable stratum to block dam and second grade prevention of seepage water layer contact part, be equipped with the water.
In some embodiments of the invention, the catchment channel is in communication with the drainage channel via a second drainage pipe extending through the slope and the catchment dam, and the bottom of the catchment channel is provided with a filter connected to the second drainage pipe.
In some embodiments of the present invention, the filter is cylindrical, the upper side and the lower side of the filter are respectively provided with a first filter screen and a second filter screen, the aperture of the second filter screen is smaller than that of the first filter screen, a floating ball is arranged in the filter between the first filter screen and the second filter screen, and the bottom of the water blocking channel is concave.
In some embodiments of the invention, the primary waterproof layer comprises a gravel layer, the upper surface of the gravel layer is provided with a crushed stone layer, and the surface of the crushed stone layer is provided with a concrete layer.
In some embodiments of the invention, a catchment ditch is formed between the concrete layer and the barrage, the catchment ditch and the drainage ditch being in communication via a third drainage pipe extending through the barrage.
In some embodiments of the invention, the concrete layer is connected with the slope body through the reinforcing columns, the reinforcing columns are arranged on the upper portion and the lower portion of the slope body, the reinforcing columns are made of concrete, and steel wire meshes are arranged in the concrete layer and the reinforcing columns.
In some embodiments of the invention, the surface of the concrete layer is obliquely provided with a flow guide plate for slowing down water flow, and the surface of the flow guide plate for guiding the water flow is designed to be in a step shape.
In some embodiments of the invention, the gravel layer is provided with a plurality of wood plates for reinforcing the structure of the gravel layer.
In some embodiments of the invention, the water permeable layer is made of water permeable bricks.
In some embodiments of the invention, a first pressure relief pipe and a second pressure relief pipe are longitudinally arranged in the dam, the lower ends of the first pressure relief pipe and the second pressure relief pipe are respectively communicated with the second drain pipe and the third drain pipe, and the upper ends of the first pressure relief pipe and the second pressure relief pipe penetrate through the upper surface of the dam.
The embodiment of the invention at least has the following advantages or beneficial effects:
the embodiment of the invention provides a seepage-proofing structure of a geotechnical engineering side slope, which comprises a slope body and a water blocking channel arranged at the upper part of the slope body, wherein a blocking dam is arranged at the bottom of the slope body, a drainage channel is arranged at one side of the blocking dam, which is far away from the slope body, a primary seepage-proofing layer is covered on the surface of the slope body, the water blocking channel and the primary seepage-proofing layer are correspondingly communicated with the drainage channel, a secondary seepage-proofing layer is arranged between the slope body and the primary seepage-proofing layer, the secondary seepage-proofing layer comprises a first mulching layer arranged on the surface of the slope body, a gravel soil layer arranged on the surface of the first mulching layer and a second mulching layer arranged on the surface of gravel soil, the contact part of the blocking dam and the secondary seepage-proofing layer is a water permeable layer, a water storage cavity adjacent to the water permeable layer. When the rainfall, the rainwater is unrestrained when the one-level prevention of seepage layer, partly rainwater landing corresponds to flow into in the ditch after the one-level waterproof layer bottom, reach the effect of partial rainwater drainage, another part rainwater (especially one-level prevention of seepage layer is after permanent use, when one-level prevention of seepage layer takes place local damage or large tracts of land emergence damage, this part rainwater is more relatively) gets into second grade prevention of seepage layer through one-level prevention of seepage layer, collect the bottom at second ground rete through the second ground rete barrier effect on second grade prevention of seepage layer, through the osmosis of permeable stratum, rainwater between second ground rete and the one-level prevention of seepage layer gets into the retaining intracavity, flow into the ditch through first drain pipe at last. Through the dual design of one-level prevention of seepage layer and second grade prevention of seepage layer, the rainwater need get into the internal one-level prevention of seepage layer that need see through in order of slope, second grade prevention of seepage layer, the problem that the degree of difficulty is big has, the slope has the effectual advantage of prevention of seepage water promptly, second grade prevention of seepage layer adopts first basement membrane layer, the design on centre gripping rubble soil layer between the second basement membrane layer, the plastic film has water-proof effects well, the life cycle is long, the advantage that the cost is with low costs, simultaneously the rubble soil layer is the mixture of rubble and soil block, and is with low costs, the stability of first basement membrane layer and second basement membrane layer connection has been increased, make second grade prevention of seepage. The design of the invention solves the problem that the slope structure adopted at the present stage can not play an effective waterproof role in the slope treatment engineering of the existing geotechnical engineering.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed 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 diagram of a water seepage prevention structure of a geotechnical engineering slope according to an embodiment of the invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
FIG. 4 is a side view of a primary water barrier layer according to an embodiment of the invention;
FIG. 5 is a top view of the baffle of FIG. 4;
FIG. 6 is a top view of a barrage according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a filter according to an embodiment of the present invention.
Icon: 1-slope body, 2-second drainage pipe, 3-water blocking channel, 4-filter, 401-first filter screen, 402-floating ball, 403-second filter screen, 5-first ground film layer, 6-wood board, 7-gravel soil layer, 8-gravel layer, 9-gravel layer, 10-steel wire mesh, 11-concrete layer, 12-water accumulation channel, 13-second pressure relief pipe, 14-third drainage pipe, 15-reinforcing column, 16-drainage channel, 17-first drainage pipe, 18-dam, 19-water storage cavity, 20-water permeable layer, 21-first pressure relief pipe and 22-second ground film layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments 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 generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1, 2 and 3, fig. 1 is a schematic structural view of a water seepage prevention structure of a geotechnical engineering side slope, fig. 2 is a partial enlarged view of a part a in fig. 1, and fig. 3 is a partial enlarged view of a part B in fig. 1.
The utility model provides a seepage prevention structure of geotechnical engineering side slope, including the slope body 1, still include the retaining channel 3 that 1 upper portion of slope body set up, the bottom of slope body 1 is equipped with dam 18, one side that the slope body 1 was kept away from to dam 18 is equipped with drainage channel 16, the surface covering of slope body 1 is equipped with one-level prevention of seepage water layer, the retaining channel 3, one-level waterproof layer surface corresponds the intercommunication with drainage channel 16, be equipped with second grade prevention of seepage water layer between slope body 1 and the one-level prevention of seepage water layer, second grade prevention of seepage water layer is including setting up the first rete 5 on slope body 1 surface, the rubble soil layer 7 that first rete 5 surface set up, still include the second rete 22 that rubble soil layer 7 surface set up, dam 18 and second grade prevention of seepage water layer contact part are permeable stratum 20, be equipped with the water storage cavity 19 adjacent with permeable bed 20 in the dam 18, water storage cavity 19 communicates.
When raining, when rainwater is sprinkled on the first-level impermeable layer, a part of rainwater slides to the bottom of the first-level waterproof layer and correspondingly flows into the drainage channel 16 to achieve the effect of partial rainwater drainage, the other part of rainwater (especially, after the first-level impermeable layer is used for a long time, when the first-level impermeable layer is locally damaged or damaged in a large area, the part of rainwater is relatively more) enters the second-level impermeable layer through the first-level impermeable layer, the rainwater between the second-level impermeable layer 22 and the first-level impermeable layer enters the bottom of the second-level impermeable layer 22 through the barrier effect of the second-level impermeable layer 22, and finally flows into the drainage channel 16 through the first drainage pipe 17 through the permeation effect of the permeable layer 20. Through the dual design of one-level prevention of seepage layer and second grade prevention of seepage layer, the rainwater need get into and need see through one-level prevention of seepage layer in order in the slope body 1, the second grade prevention of seepage layer, the problem that the degree of difficulty is big has, slope body 1 has the effectual advantage of prevention of seepage water promptly, the second grade prevention of seepage layer adopts first basement membrane layer 5, centre gripping rubble soil layer 7's design between the second basement membrane layer 22, the plastic film has that water-proof effects is good, the life cycle is long, the advantage that the cost is with low costs, rubble soil layer 7 is the mixture of rubble and soil block simultaneously, low costs, the stability that first basement membrane layer 5 and second basement membrane layer 22 are connected has been increased, it is low to make. The design of the invention solves the problem that the slope structure adopted at the present stage can not play an effective waterproof role in the slope treatment engineering of the existing geotechnical engineering.
Referring to fig. 1 and 7, fig. 7 is a schematic structural view of a filter 4 according to an embodiment of the present invention, in which a water blocking channel 3 is communicated with a water draining channel 16 through a second water draining pipe 2 penetrating through a slope 1 and a blocking dam 18, and the bottom of the water blocking channel 3 is provided with the filter 4 connected with the second water draining pipe 2. The second drain pipe 2 adopts a PVC pipe, and the design of the filter 4 prevents impurities (soil blocks or broken stones) in the water blocking channel 3 from entering the second drain pipe 2 to block the pipeline, so that water in the water blocking channel 3 cannot be stably discharged.
The filter 4 is cylindrical, a first filter screen 401 and a second filter screen 403 are respectively arranged on the upper side and the lower side in the filter 4, the aperture of the second filter screen 403 is smaller than that of the first filter screen 401, a floating ball 402 is arranged in the filter 4 between the first filter screen 401 and the second filter screen 403, and the bottom of the water blocking channel 3 is concave. The aperture of the second filter screen 403 is smaller than that of the first filter screen 401, so that water and impurities (soil blocks or broken stones) in the water retaining channel 3 sequentially pass through the first filter screen 401 and the second filter screen 403, the purpose of filtering step by step is achieved, the problem that a single filter screen (with a small aperture) is blocked easily when a single-layer filter screen is designed is avoided, the drainage efficiency is reduced, the bottom of the water retaining channel 3 is designed to be concave, water in the water retaining channel 3 is easy to gather and flow out, and water in the water retaining channel 3 is completely discharged.
Referring to fig. 1, 2 and 3, fig. 1 is a schematic structural view of a water seepage prevention structure of a geotechnical slope, fig. 2 is a partial enlarged view of a in fig. 1, fig. 3 is a partial enlarged view of B in fig. 1, a primary waterproof layer includes a gravel layer 8, a crushed stone layer 9 is disposed on an upper surface of the gravel layer 8, and a concrete layer 11 is disposed on a surface of the crushed stone layer 9. The gravel layer 8 serves as a foundation layer and has the function of stabilizing the primary impermeable layer, the gravel layer 9 serves as an intermediate layer and has the function of strengthening the overall structure of the primary impermeable layer, and the concrete layer 11 serves as a surface layer of the primary impermeable layer and has the waterproof function.
A water accumulation ditch 12 is formed between the concrete layer 11 and the dam 18, and the water accumulation ditch 12 is communicated with a drainage ditch 16 through a third drainage pipe 14 penetrating the dam 18. Rainwater falls on the concrete layer 11 and then is gathered in the ponding ditch 12, water in the ponding ditch 12 flows into the drainage channel 16 through the third drainage pipe 14, the third drainage pipe 14 has a drainage function, and the third drainage pipe 14 is made of PVC pipes.
The concrete layer 11 is connected with the slope body 1 through the reinforcing column 15, the upper portion and the lower portion of the slope body 1 are provided with the reinforcing column 15, the reinforcing column 15 is made of concrete, and the steel wire meshes 10 are arranged in the concrete layer 11 and the reinforcing column 15. The design of the reinforcing column 15 indirectly connects the slope body 1 with the first-level impermeable layer, so that the stability of the first-level impermeable layer is improved.
Referring to fig. 1, fig. 4, and fig. 5, fig. 1 is a schematic structural view of an anti-seepage structure of a geotechnical engineering side slope, fig. 4 is a side view of a primary anti-seepage layer according to an embodiment of the present invention, fig. 5 is a top view of a diversion plate 23 shown in fig. 4, the surface of a concrete layer 11 is obliquely provided with a diversion plate 23 for slowing down water flow, and the drainage surface of the diversion plate 23 is designed to be stepped. The guide plate 23 is arranged in an inclined mode, and when rainwater falls on the guide plate 23, the guide plate 23 can transfer force of a part of vertical direction of the rainwater to the horizontal direction, so that vertically flowing water is changed into obliquely flowing water, and kinetic energy of the rainwater can be reduced.
A plurality of wood boards 6 used for reinforcing the structure of the broken stone soil layer 7 are arranged in the broken stone soil layer. The wood board 6 is arranged in the gravel soil layer 7, the purpose of enhancing the structural stability of the gravel soil layer 7 is achieved, and the wood board 6 has the advantage of low manufacturing cost.
The permeable layer 20 is made of permeable bricks. The permeable brick can permeate rainwater and block impurities, has the advantage of directional drainage, and is usually several pieces of water, so that the permeable brick has the advantage of low cost.
Referring to fig. 1 and 6, fig. 6 is a top view of a dam 18 according to an embodiment of the present invention, a first pressure relief pipe 21 and a second pressure relief pipe 13 are longitudinally disposed in the dam 18, lower ends of the first pressure relief pipe 21 and the second pressure relief pipe 13 are respectively communicated with a second drainage pipe 2 and a third drainage pipe 14, and upper ends of the first pressure relief pipe 21 and the second pressure relief pipe 13 penetrate through an upper surface of the dam 18. The first pressure relief pipe 21 and the second pressure relief pipe 13 are arranged at one end part far away from the slope body 1, and during drainage, air respectively enters the second drainage pipe 2 and one end, far away from the slope body 1, of the third drainage pipe 14 through the first pressure relief pipe 21 and the second pressure relief pipe 13, so that the drainage water pressure in the second drainage pipe 2 or the third drainage pipe 14 can be reduced.
In conclusion, the invention provides a water seepage prevention structure of a geotechnical engineering side slope, which at least has the following beneficial effects:
when the geotechnical engineering slope anti-seepage structure falls into rain, when rain falls on the first-level anti-seepage layer, a part of rain falls to the bottom of the first-level waterproof layer and then correspondingly flows into the drainage channel 16 to achieve the effect of draining part of the rain, and the other part of rain (particularly when the first-level anti-seepage layer is locally damaged or damaged in a large area after being used for a long time) enters the second-level anti-seepage layer through the first-level anti-seepage layer, is converged at the bottom of the second-level anti-seepage layer 22 through the blocking effect of the second-level anti-seepage layer 22, and finally flows into the drainage channel 16 through the first drainage pipe 17 under the permeation effect of the permeable layer 20, so that the rain between the second-level anti-seepage layer 22 and the first-seepage layer enters the water storage cavity 19. Through the dual design of one-level prevention of seepage layer and second grade prevention of seepage layer, the rainwater need get into and need see through one-level prevention of seepage layer in order in the slope body 1, the second grade prevention of seepage layer, the problem that the degree of difficulty is big has, slope body 1 has the effectual advantage of prevention of seepage water promptly, the second grade prevention of seepage layer adopts first basement membrane layer 5, centre gripping rubble soil layer 7's design between the second basement membrane layer 22, the plastic film has that water-proof effects is good, the life cycle is long, the advantage that the cost is with low costs, rubble soil layer 7 is the mixture of rubble and soil block simultaneously, low costs, the stability that first basement membrane layer 5 and second basement membrane layer 22 are connected has been increased, it is low to make. The design of the invention solves the problem that the slope structure adopted at the present stage can not play an effective waterproof role in the slope treatment engineering of the existing geotechnical engineering.
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 (10)
1. The utility model provides a seepage prevention structure of geotechnical engineering side slope, includes the slope body, still includes the water retaining channel that slope body upper portion set up, the bottom of the slope body is equipped with blocks the dam, it is equipped with the drainage channel to block one side that the slope body was kept away from to the dam, the surface covering of the slope body is equipped with one-level prevention of seepage water layer, water retaining channel, one-level waterproof layer surface correspond the intercommunication with the drainage channel, its characterized in that, be equipped with second grade prevention of seepage water layer between slope body and the one-level prevention of seepage water layer, second grade prevention of seepage water layer still includes the second rete that rubble soil layer surface set up including setting up the rubble soil layer at first rete, the first plastic film layer surface on slope body surface, it is the water permeable bed to block dam and second grade prevention of seepage water layer contact part, be equipped with the adjacent water storage chamber of water permeable layer in the.
2. The geotechnical engineering slope seepage-proofing structure according to claim 1, wherein the water-blocking channel is communicated with the water drainage channel through a second water drainage pipe penetrating through the slope body and the blocking dam, and a filter connected with the second water drainage pipe is arranged at the bottom of the water-blocking channel.
3. The anti-seepage structure of geotechnical engineering side slope according to claim 2, said filter is cylindrical, the upper side and the lower side in said filter are respectively provided with a first filter screen and a second filter screen, the aperture of the second filter screen is smaller than that of the first filter screen, a floating ball is arranged in the filter between the first filter screen and the second filter screen, and the bottom of the water blocking channel is concave.
4. The geotechnical engineering slope water seepage prevention structure according to any one of claims 1 or 3, wherein the primary waterproof layer comprises a gravel layer, a gravel layer is arranged on the upper surface of the gravel layer, and a concrete layer is arranged on the surface of the gravel layer.
5. The geotechnical engineering side slope water seepage prevention structure according to claim 4, wherein a water accumulation ditch is formed between the concrete layer and the retaining dam, and the water accumulation ditch is communicated with the drainage channel through a third drainage pipe penetrating through the retaining dam.
6. The seepage-proofing structure of geotechnical engineering side slope according to claim 5, wherein said concrete layer is connected with the slope body through reinforcement columns, reinforcement columns are arranged on the upper portion and the lower portion of the slope body, the reinforcement columns are made of concrete, and steel wire meshes are arranged in the concrete layer and the reinforcement columns.
7. The seepage-proofing structure of geotechnical engineering slope according to claim 6, wherein the surface of concrete layer is obliquely provided with a flow guide plate for slowing down water flow, and the surface of flow guide plate for guiding flow is designed to be step-shaped.
8. The watertight structure of geotechnical engineering side slope according to claim 1 or 4, wherein a plurality of wood boards for reinforcing the structure of the soil are arranged in the crushed rock layer.
9. The watertight structure of a geotechnical engineering slope according to claim 1, wherein said permeable layer is made of permeable bricks.
10. The geotechnical engineering side slope water seepage prevention structure according to claim 2 or 5, wherein a first pressure relief pipe and a second pressure relief pipe are longitudinally arranged in the blocking dam, the lower ends of the first pressure relief pipe and the second pressure relief pipe are respectively communicated with a second drain pipe and a third drain pipe, and the upper ends of the first pressure relief pipe and the second pressure relief pipe penetrate through the upper surface of the blocking dam.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764409A (en) * | 2020-06-17 | 2020-10-13 | 何清雨 | Seepage-proofing structure of geotechnical engineering side slope |
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