CN112627202A

CN112627202A - Waterproof slope protection

Info

Publication number: CN112627202A
Application number: CN202011544137.5A
Authority: CN
Inventors: 朱方伍; 马少坤; 伍盛江; 胡豫; 马敏; 陆善庆
Original assignee: Xiniupi Waterproof Technology Co ltd
Current assignee: Xiniupi Waterproof Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-04-09

Abstract

The invention belongs to the technical field of slope protection, and discloses a waterproof slope protection, which comprises an expansive soil slope, a slope top protection platform, a slope foot protection platform, a high polymer waterproof layer, an ecological protection layer and a water guide channel. Wherein, the top layer of inflation soil side slope forms solidified layer through soil curing agent, slope top protection platform sets up in the top of slope of inflation soil side slope, the top of slope protection bench is provided with the top of slope catch basin, slope foot protection platform sets up in the toe of inflation soil side slope, the toe of slope protection bench is provided with the toe escape canal, polymer waterproof layer is formed by the combination more than one of water proof coating or the on-the-spot coiled material waterproof layer, polymer waterproof layer lays in the surface of solidified layer, ecological protection layer lays in polymer waterproof layer's surface, the water guide channel sets up on ecological protection layer, can lead the toe escape canal with the water in the top of slope catch basin. According to the invention, the high-molecular waterproof layer can reliably protect the expansive soil slope and can buffer and release stress generated by the deformation of the expansive soil slope.

Description

Waterproof slope protection

Technical Field

The invention relates to the technical field of side slope protection, in particular to a waterproof protection slope.

Background

The expansive soil in the slope protection structure is special cohesive soil with obvious water sensitivity, the main particularity of the expansive soil is that the expansive soil is softened after meeting water and shrinks and cracks after losing water, and the deformation process of wet expansion and dry shrinkage can be repeated. After the expansive soil undergoes multiple dry-wet alternation, the strength of the expansive soil is obviously reduced, and landslide accidents of the expansive soil side slope are easily caused. Therefore, a waterproof measure for the expansive soil slope is made, and the waterproof measure is very important for the problem of the expansive soil slope.

In order to solve the problems, rigid structures such as soil retaining walls or anti-slide piles are mostly adopted in the existing treatment methods to protect the expansive soil side slope, the characteristic that the expansive soil is wet-expanded and dry-contracted is not considered in the rigid slope protection methods, the expansive soil can expand when meeting water, and if the soil body is expanded and deformed to a certain degree and the stress cannot be released timely, the rigid structure can be damaged, so that the damage to the slope protection structure is caused.

Disclosure of Invention

The invention aims to provide a waterproof protection slope which can reliably protect an expansive soil side slope and buffer and release stress generated by the deformation of the expansive soil side slope.

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

a water-resistant revetment comprising:

the surface layer of the expansive soil side slope forms a solidified layer through a soil solidifying agent;

the slope top protection platform is arranged at the slope top of the expansive soil side slope, and a slope top intercepting ditch is arranged on the slope top protection platform;

the slope toe protection platform is arranged on the slope toe of the expansive soil side slope, and a slope toe drainage ditch is arranged on the slope toe protection platform;

the macromolecular waterproof layer is laid on the surface of the cured layer;

the ecological protection layer is laid on the surface of the high polymer waterproof layer;

and the water guide channel is arranged on the ecological protective layer and can guide water in the slope top intercepting drain to the toe drain.

Preferably, the ecological protection layer comprises:

the planting soil layer is laid on the surface of the high polymer waterproof layer;

the ecological vegetation is arranged on the planting soil layer;

and the fixing component locks the planting soil layer on the outer side of the polymer waterproof layer.

Preferably, the fixing assembly includes:

the geogrid is arranged in the planting soil layer;

one end of the self-drilling anchor rod penetrates through the high polymer waterproof layer and extends into the expansive soil side slope, and the other end of the self-drilling anchor rod is positioned in the planting soil layer;

the supporting piece is positioned in the planting soil layer and connected to the self-drilling anchor rod;

and the fixing piece is connected with the support piece and the geogrid.

Preferably, the supporting piece is a bolt, a head of the bolt is provided with a threaded hole, and the head is in threaded connection with the self-drilling anchor rod through the threaded hole.

Preferably, the fixing member is a nylon rope, and the nylon rope binds the screw of the bolt to the geogrid.

Preferably, the water guide passage includes:

the first water guide pipe is buried in the planting soil layer, is attached to the high polymer waterproof layer and extends along the gradient direction of the expansive soil slope;

the second water guide pipe is positioned in the toe protection platform and extends in a direction vertical to the first water guide pipe, and one end of the first water guide pipe is communicated with the second water guide pipe;

and the third water guide pipe is positioned in the toe protection platform and extends in a direction perpendicular to the second water guide pipe, one end of the third water guide pipe is communicated with the second water guide pipe, and the other end of the third water guide pipe is communicated with the toe drainage ditch.

Preferably, the ecological protection layer comprises:

the ecological bags are stacked from bottom to top along the gradient direction of the expansive soil slope and are attached to the outer side of the high polymer waterproof layer;

a planting soil layer covering the ecological bag;

and the ecological vegetation is arranged on the planting soil layer.

Preferably, the ecological bag further comprises a gravel reverse filtering layer, the gravel reverse filtering layer is arranged on the top surface of the toe protection platform, and the ecological bag at the lowest layer is arranged on the top surface of the gravel reverse filtering layer.

Preferably, the water guide channel comprises a drain pipe, the drain pipe is arranged on the top surface of the toe protection platform, one end of the drain pipe extends into the gravel reverse filtering layer, and the other end of the drain pipe faces the toe drainage ditch.

Preferably, the water guide channel further comprises a side ditch, the side ditch is arranged on the surface of the ecological protection layer and extends along the slope direction of the expansive soil slope, one end of the side ditch is communicated with the slope top intercepting ditch, and the other end of the side ditch extends to the toe ditch.

The invention has the beneficial effects that:

the polymer waterproof layer can reliably protect the expansive soil slope and buffer and release stress generated by deformation of the expansive soil slope, has excellent waterproof performance, sealing performance, crack resistance and ageing resistance compared with the existing rigid structure, and is not easy to be damaged and lose efficacy.

The polymer waterproof layer can effectively control rainwater infiltration of the slope surface and water evaporation of the slope body, can stabilize the water content of the expansive soil side slope, can effectively reduce the influence of the dry-wet cycle effect on the side slope, and can ensure the stability of the expansive soil side slope.

Make waterproof bank protection have certain extensibility performance through setting up the polymer waterproof layer, this has fine absorption and control action to the expansive force and the deformation that the swelling soil side slope meets water inflation production.

The surface layer of the expansive soil slope forms a cured layer through the soil curing agent, so that the cohesive force of the expansive soil body on the original surface layer is enhanced, the engineering property is improved, the bonding effect with the polymer waterproof layer after treatment is enhanced, and the advantages of the polymer waterproof layer can be exerted to the maximum.

The high-molecular waterproof layer has uniform and controllable thickness and strong engineering adaptability, and the subsequent problem that the side slope needs to be maintained and treated is greatly reduced due to higher durability, so that the protective effect is obvious.

Drawings

Fig. 1 is a schematic cross-sectional view of a waterproof slope protection according to a first embodiment of the present invention;

fig. 2 is a front view of a waterproof slope protection according to a first embodiment of the present invention;

fig. 3 is a schematic view of a structure of the geogrid, the supporting member and the fixing member in the waterproof slope protection according to the first embodiment of the present invention;

FIG. 4 is a schematic view of a structure of a self-anchoring drill rod and a support member in a waterproof slope protection according to a first embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a waterproof slope protection according to a second embodiment of the present invention;

fig. 6 is a front view of the waterproof slope protection according to the second embodiment of the present invention.

In the figure:

1. expanding soil slope; 11. curing the layer;

2. a slope top protection platform; 21. a slope top intercepting ditch;

3. a toe protection platform; 31. a toe drain ditch; 32. a water seepage station; 33. a toe support table; 34. a reinforced concrete floor; 35. a toe platform;

4. a polymer waterproof layer;

5. an ecological protection layer; 51. planting a soil layer; 52. ecological vegetation; 53. a fixing assembly; 531. a geogrid; 532. self-drilling an anchor rod; 533. a support member; 534. a fixing member; 54. an ecological bag;

6. a water guide channel; 61. a first water conduit; 62. a second water conduit; 63. a third water conduit; 64. a drain pipe; 65. side ditches;

7. and a gravel reverse filtering layer.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction 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.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

As shown in fig. 1-4, the present embodiment provides a waterproof slope protection, which includes an expansive soil slope 1, a top protection platform 2, a toe protection platform 3, a polymer waterproof layer 4, an ecological protection layer 5, and a water guide channel 6. Wherein, the top layer of inflation soil side slope 1 passes through soil curing agent and forms solidified layer 11, slope top protection platform 2 sets up in the top of slope of inflation soil side slope 1, be provided with slope top catch basin 21 on the top of slope protection platform 2, slope foot protection platform 3 sets up in the toe of inflation soil side slope 1, be provided with toe escape canal 31 on the toe of slope protection platform 3, polymer waterproof layer 4 lays in the surface of solidified layer 11, ecological protection layer 5 lays in polymer waterproof layer 4's surface, water guide channel 6 sets up on ecological protection layer 5, can lead toe escape canal 31 with the water in the top of slope catch basin 21.

In the invention, the high polymer waterproof layer 4 can reliably protect the expansive soil side slope 1 and buffer and release stress generated by the deformation of the expansive soil side slope 1, compared with the existing rigid structure, the high polymer waterproof layer 4 has excellent waterproof performance, sealing performance, anti-cracking performance and anti-aging performance, is not easy to be damaged and loses efficacy, the high polymer waterproof layer 4 can effectively control rainwater infiltration of the slope surface and water evaporation of the slope body, can stabilize the water content of the expansive soil side slope 1, can effectively reduce the influence of dry-wet cycle action on the side slope, can ensure the stability of the expansive soil side slope 1, the waterproof protection slope has certain extensibility by arranging the high polymer waterproof layer 4, has good absorption and control effects on expansibility and deformation generated by the expansive soil side slope 1 expanding when encountering water, and the surface layer of the expansive soil side slope 1 forms a cured layer 11 through a soil curing agent, make original top layer inflation soil body cohesion reinforcing, the engineering property is improved to also obtain the reinforcing with the adhesive effect of macromolecular waterproof layer 4 after handling, can exert macromolecular waterproof layer 4's advantage to the maximize, in addition, macromolecular waterproof layer 4's thickness is even controllable, and engineering adaptability is strong, and because of its durability is higher, follow-up side slope need maintain the treatment problem significantly reduce, and the protective effect is showing.

In this embodiment, the slope top intercepting drain 21 and the slope foot drainage drain 31 extend in a direction perpendicular to the slope direction, and the soil curing agent used for curing the surface layer of the expansive soil slope 1 is specifically an ionic soil curing agent aqueous solution, which is mainly composed of sulfonated oil, and is a curing agent commonly used in the art, and the specific cost is not described herein again.

In this embodiment, the polymer waterproof layer 4 is formed by laminating one or two of a first polymer waterproof layer and a second polymer waterproof layer, specifically, the rubber modified asphalt waterproof paint or the now-made coil waterproof layer described in patent application nos. 201811304143.6, 201811304665.6, and 201811306165.6.

The first high polymer waterproof layer has low-temperature flexibility of less than or equal to minus 20 ℃ for 2h, no crack, bonding strength of more than or equal to 0.5MPa with the base layer, water absorption of less than or equal to 7.0% for 48h, heat resistance of more than or equal to 90 ℃, stress relaxation of less than or equal to 35%, no separation from the bonding surface, bridging crack capacity of more than or equal to 0.25mm, and joint deformation capacity of more than or equal to 5000 cycles without damage.

The first polymer waterproof layer is formed by uniformly mixing a first component and a second component in a mass ratio of 1: 0.1-1.0 and then drying and solidifying.

Wherein the first component comprises the following components in percentage by mass:

asphalt: 25.8-56%;

rubber: 6-15.4%;

asphalt regenerant: 6-24.5%;

emulsifier: 0.8-4.0%;

a stabilizer: 0.03-5.0%;

other auxiliary agents: 0 to 5.0 percent;

water: and (4) the balance.

The total mass percentage of the asphalt and the asphalt regenerant is 46-63%, the solid content of the first component is 60-70%, the rubber accounts for 10-22% of the total mass of the asphalt, the asphalt regenerant and the rubber, the asphalt is at least one of coal tar asphalt, petroleum asphalt and natural asphalt, the asphalt regenerant is prepared by using naphthenic base heavy oil as a raw material and distilling the raw material under normal pressure and reduced pressure, the rubber is solid rubber which is one or a mixture of star SBS, linear SBS, SBR, SIS, SEBS, butyl rubber, chloroprene rubber, butadiene rubber, isoprene rubber, ethylene propylene rubber, silicon rubber, nitrile rubber, ethylene propylene diene monomer rubber or natural rubber, and the emulsifier is one or a mixture of sodium dodecyl benzene sulfonate, sodium butyl naphthalene sulfonate, sodium alkenyl sulfonate, modified sodium lauryl sulfate, alkylphenol polyoxyethylene ether phosphate, rosin acid soap, sodium alkyl benzene sulfonate, modified sodium lauryl sulfate, alkyl phenol polyoxyethylene, One or more of OP-10, octadecyl trimethyl ammonium chloride, didodecyl ammonium bromide, Mucosu quaternary ammonium salt and alkyl imidazoline, one or more of CaCl2 and acid as stabilizer, and one or more of hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, alkali swelling associative thickener and associative polyurethane thickener as other assistant.

The second component is a filler which is one or more of an active filler or an inert filler; the active filler is at least one of cement and calcium oxide; the inert filler is one or more of quartz powder, titanium dioxide, barium sulfate, calcium carbonate powder, talcum powder, kaolin and rubber particles.

The bonding strength of the second macromolecule waterproof layer and the base layer is more than or equal to 0.7MPa, the water absorption rate of 48h is less than or equal to 6.0%, the heat resistance is more than or equal to 95 ℃, no crack exists at the low temperature flexibility of less than or equal to minus 25 ℃ for 2h, the stress relaxation is less than or equal to 25%, the second macromolecule waterproof layer is not separated from the bonding surface, the bridging crack capacity is more than or equal to 1.0mm, and the seam deformation capacity is more than or equal.

The second polymer waterproof layer comprises at least two layers which are sequentially overlapped and can be alternately overlapped in a plurality of layers, wherein one layer is the first polymer waterproof layer, and the other layer is the reinforced carcass layer.

The reinforced tyre body layer is prepared by tyre body reinforcing materials, and the second macromolecule waterproof layer also comprises a second waterproof coating arranged on the outer layer of the reinforced tyre body layer. The second waterproof coating can be formed by coating and drying the same or different raw materials as the first waterproof coating.

Optionally, the ecological protection layer 5 comprises a planting soil layer 51, ecological vegetation 52 and a fixing component 53. Wherein, plant soil layer 51 and lay in the surface of polymer waterproof layer 4, ecological vegetation 52 sets up on planting soil layer 51, and fixed subassembly 53 locks planting soil layer 51 in the outside of polymer waterproof layer 4. The above-mentioned structure setting of ecological inoxidizing coating 5 can safe and reliable ground lay in the outside of inflation soil side slope 1, plays ecological protection's effect, mixes nutrient and green seed of planting in planting soil layer 51, and the ecological vegetation 52 of growth after cultivating can effectively reduce soil erosion and water loss to play the effect of waterproof bank protection.

Specifically, the fixing assembly 53 includes a geogrid 531, a self-drilling anchor 532, a support 533, and a fixing 534. The geogrid 531 is arranged in a planting soil layer 51, one end of the self-drilling anchor rod 532 penetrates through the high polymer waterproof layer 4 and extends into the expansive soil slope 1, the other end of the self-drilling anchor rod 532 is located in the planting soil layer 51, the support piece 533 is located in the planting soil layer 51 and connected to the self-drilling anchor rod 532, and the fixing piece 534 is connected with the support piece 533 and the geogrid 531. The concrete structure of the fixing component 53 can more reliably fix and support the planting soil layer 51, wherein the self-drilling anchor rod 532 is matched with the high polymer waterproof layer 4, and the slope is prevented from seepage, and meanwhile, the stability of the slope can be greatly enhanced.

More specifically, the support 533 is a bolt, and a head of the bolt is provided with a threaded hole through which the head is threadedly coupled with the self-drilling anchor bar 532. In the invention, the self-drilling anchor rods 532 are reserved with 0.4-0.5m outside the high polymer waterproof layer 4, the threaded holes of the bolt heads are used for sleeve protection, and the geogrid 531 is bound on the bolts, so that the vertical bearing capacity of the geogrid 531 can be greatly increased, and the water and soil erosion of the slope surface is effectively reduced.

In this embodiment, the fixing member 534 is a nylon rope, the nylon rope ties the screw of the bolt on the geogrid 531, and the nylon rope ties and fastens the geogrid 531 with the screw of the bolt according to the thread trace, so that the fixing is safe and reliable.

In addition to the above arrangement, the support 533 may be a metal rod, one end of which is welded or connected to the self-drilling anchor rod 532 by a fastener, and the fixing member 534 is a steel wire rope, which binds the metal rod to the geogrid 531.

Specifically, the water guide passage 6 includes a first water introduction pipe 61, a second water introduction pipe 62, and a third water introduction pipe 63. The first water guide pipe 61 is embedded in the planting soil layer 51, is attached to the polymer waterproof layer 4, extends along the slope direction of the expansive soil slope 1, the second water guide pipe 62 is located in the toe protection platform 3, extends along the direction perpendicular to the first water guide pipe 61, one end of the first water guide pipe 61 is communicated with the second water guide pipe 62, the third water guide pipe 63 is located in the toe protection platform 3, extends along the direction perpendicular to the second water guide pipe 62, one end of the third water guide pipe 63 is communicated with the second water guide pipe 62, and the other end is communicated with the toe drainage ditch 31. The specific structure of the water guide channel 6 is arranged, so that the waterproof slope protection has the characteristic of 'hidden' drainage, and is not exposed out of the surface of the slope, and the attractiveness of the waterproof slope protection can be improved.

In this embodiment, the toe protection platform 3 includes a water penetration platform 32 and a toe support platform 33 built on the water penetration platform 32, the toe drainage ditch 31 is located on one side of the toe support platform 33 away from the expansive soil slope 1, the second water conduit 62 is embedded in the water penetration platform 32, the upper end of the first water conduit 61 extends towards the top of the slope, the lower end extends into the water penetration platform 32 and is communicated with the second water conduit 62, the third water conduit 63 is embedded in the toe support platform 33, one end extends into the water penetration platform 32 and is communicated with the second water conduit 62, and the other end is communicated with the toe drainage ditch 31 outside the toe support platform 33.

The concrete construction method of the waterproof slope protection of the embodiment is as follows:

the method comprises the steps of firstly, flattening the expansive soil slope 1 to enable the slope surface not to have sharp objects, and finishing and cleaning the slope surface to remove obstacles.

And step two, spraying the surface layer of the expansive soil slope 1 by using an ionic soil curing agent aqueous solution, wherein the spraying can be averagely divided into 3-4 times, and wet-mixing the mixture by using a road mixer after each spraying until the dry and wet of the cured soil mixture are consistent.

And step three, immediately flattening the uniformly mixed solidified soil mixture, performing shaping, rolling and other work, and finally maintaining at a certain humidity for at least 7 days to finally form a solidified layer 11, wherein the whole construction process should avoid rainy seasons.

And fourthly, excavating a groove according to the design, cleaning earthwork, building the water seepage platform 32 at the toe of the slope, burying a second water guide pipe 62 in the water seepage platform 32 along the longitudinal direction, burying a third water guide pipe 63 along the transverse direction, wherein one end of the third water guide pipe 63 is communicated with the second water guide pipe 62, and the third water guide pipe 63 is buried according to the gradient of 4%.

Step five, building the slope top protection platform 2, arranging a slope top intercepting ditch 21 on the slope top protection platform 2, building a slope toe support platform 33, arranging a slope toe drainage ditch 31 on one side of the slope toe support platform 33, connecting the other end of a third water guide pipe 63 with the slope toe drainage ditch 31, and reserving a hole at the position, close to the slope toe, of the slope toe support platform 33 so as to facilitate later-stage laying of a first water guide pipe 61 along the slope direction. Wherein, the slope top protection platform 2 is provided with a 4% slope, and the slope foot support platform 33 is provided with a 2% slope. In a rainy area, one or more water intercepting ditches can be arranged by combining specific terrains and actual conditions, and the water intercepting ditches are used for intercepting surface running water or rainwater above the top of the slope and enabling the rainwater on the slope surface to be drained away through the toe drainage ditches 31 in time.

And a sixth step of laying a waterproof polymer layer 4 on the surface of the cured layer 11 (according to the construction methods described in patent application nos. 201811304143.6, 201811304665.6, and 201811306165.6 or the construction method of the waterproof coating material described in the prior art). Wherein, polymer waterproof layer 4 need cover the distance of slope

top protection platform

2 and 33 width 1/2 of toe brace table respectively, and polymer waterproof layer 4 thickness should not be less than 5mm, can confirm according to actual conditions, and polymer waterproof layer 4 need once only to lay on the scene and finish.

And step seven, after the construction of the high polymer waterproof layer 4 is finished, maintaining the high polymer waterproof layer 4 until the high polymer waterproof layer is solidified and reaches the design use standard. Meanwhile, whether the high-molecular waterproof layer 4 has construction cracks or leakage points is checked, and the construction cracks or the leakage points are repaired in time, so that the effect of slope protection for a long time can be achieved.

Step eight, installing the self-drilling anchor rod 532, reserving the end part length of 0.4-0.5m without drilling into a slope body, grouting into the self-drilling anchor rod 532 after drilling is finished, wherein the grout can be cement mortar or cement paste, sleeving an anchor gasket on the exposed part of the self-drilling anchor rod 532, then screwing a bolt, and then coating a first polymer waterproof layer on the joint of the self-drilling anchor rod 532 and the polymer waterproof layer 4 and the joint of the self-drilling anchor rod 532 and the bolt for waterproofing. The self-drilling anchor rods 532 are arranged at intervals of 2m or so, are 3m-9m in length and can be determined according to actual working conditions.

Ninth, a first water guide pipe 61 is installed along the down slope direction, the first water guide pipe and the top are wrapped and fastened by geotextile, the bottom of the water guide pipe is embedded into the water seepage table 32 through a hole reserved on the toe support table 33, and the seam between the first water guide pipe 61 and the toe support table 33 is coated with a first polymer waterproof layer.

Step ten, backfilling planting soil from the toe of the slope, tamping and leveling to the position of a first anchor rod and a first bolt at the bottom to form a planting soil layer 51, laying geogrid 531, binding and fastening the geogrid 531 with nylon ropes and the bolts according to thread traces of the nylon ropes, binding 2-4 bolts at intervals according to actual working conditions, fixing the lap joint of the geogrid 531 with U-shaped nails, performing backfilling of the planting soil and laying of the geogrid 531 in a matched manner, backfilling the planting soil from the bottom of the slope to the top of the slope in sequence, laying the geogrid 531, and increasing the vertical bearing capacity of the geogrid 531 in a connection mode of the geogrid 531 and the bolts.

And eleventh, performing regular maintenance on the side slope, and further ensuring the stability of the side slope after the green plant seeds in the planting soil layer 51 are cultivated and grow into the ecological vegetation 52.

Example two

As shown in fig. 5 and 6, the present embodiment provides a waterproof slope protection, which is different from the first embodiment in that:

the ecological protection layer 5 comprises a plurality of ecological bags 54, planting soil layers 51 and ecological vegetation 52. Wherein, a plurality of ecological bags 54 stack from bottom to top along the slope direction of inflation soil side slope 1, lean on in the outside of polymer waterproof layer 4, plant soil layer 51 and cover ecological bag 54, and ecological vegetation 52 sets up on planting soil layer 51.

Ecological bag 54's setting for the structure of waterproof bank protection is more firm, has left out the firm stay structure of boring stock 532, geogrid 531 certainly, has mixed nutrient and green planting seed in planting soil layer 51, cultivates the back and grows into ecological vegetation 52, can effectively reduce soil erosion and water loss, thereby play the effect of waterproof bank protection, in this embodiment, ecological bag 54's the bag body is made for raw and other materials by polypropylene or polyester fiber, and the internal planting soil and the fertilizer that is fit for vegetation of being equipped with of bag.

Specifically, the waterproof slope protection further comprises a gravel reverse filtering layer 7, the gravel reverse filtering layer 7 is arranged on the top surface of the toe protection platform 3, and the ecological bag 54 at the lowest layer is arranged on the top surface of the gravel reverse filtering layer 7. The gravel reverse filtering layer 7 can play a role in supporting and filtering water, and can effectively discharge redundant water in the ecological protective layer 5 so as to ensure the stability of the ecological protective layer.

More specifically, the water guide passage 6 includes a drain pipe 64, and the drain pipe 64 is provided on the top surface of the toe guard table 3 with one end extending into the gravel reverse filter 7 and the other end facing the toe drain 31. The water discharge pipe 64 is arranged to lead out the water in the gravel reverse filtering layer 7 and discharge the water to the toe drain 31.

Specifically, the water guide channel 6 further includes a side ditch 65, the side ditch 65 is opened on the surface of the ecological protection layer 5 and extends along the slope direction of the expansive soil side slope 1, one end of the side ditch is communicated with the slope top cut-off ditch 21, and the other end of the side ditch extends to the toe drainage ditch 31.

In this embodiment, the toe protection platform 3 comprises a reinforced concrete bottom plate 34 and a toe platform 35 built on the reinforced concrete bottom plate 34, and the toe drainage ditch 31 is arranged on the toe platform 35 and is located on one side of the reinforced concrete bottom plate 34 far away from the expansive soil slope 1.

And step two, spraying the surface of the expansive soil slope 1 with an ionic soil curing agent aqueous solution, wherein the spraying is averagely divided into 3-4 times, and wet-mixing the mixture by a road mixer after each spraying until the dry and wet of the cured soil mixture are consistent.

And step four, building the slope top protection platform 2, arranging a slope top intercepting ditch 21 on the slope top protection platform 2, building a reinforced concrete bottom plate 34 and a slope toe platform 35, arranging a slope toe drainage ditch 31 on the slope toe platform 35, building a slope water guide platform, and arranging a side ditch 65 on the slope water guide platform. Wherein, the slope top protection platform 2 is provided with a 4% slope, and the slope foot drainage ditch 31 platform is provided with a 2% slope. In a rainy area, one or more water intercepting ditches can be arranged by combining specific terrains and actual conditions, and the water intercepting ditches are used for intercepting surface running water or rainwater above the top of the slope and enabling the rainwater on the slope surface to be drained away through the toe drainage ditches 31 in time.

And a fifth step of laying a waterproof polymer layer 4 on the surface of the cured layer 11 (according to the construction methods described in patent application nos. 201811304143.6, 201811304665.6, and 201811306165.6 or the construction method of the waterproof coating material described in the prior art). Wherein, polymer waterproof layer 4 need cover the distance of slope top protection platform 2 and toe platform 35 width 1/2 respectively, and polymer waterproof layer 4 thickness should not be less than 5mm, can confirm according to actual conditions, and polymer waterproof layer 4 need once only to lay on the scene and finish.

And step six, after the construction of the high polymer waterproof layer 4 is finished, maintaining the high polymer waterproof layer 4 until the high polymer waterproof layer is solidified and reaches the design use standard. Meanwhile, whether the high-molecular waterproof layer 4 has construction cracks or leakage points is checked, and the construction cracks or the leakage points are repaired in time, so that the effect of slope protection for a long time can be achieved.

And step seven, paving a gravel reverse filtering layer 7 on the slope toe, and arranging a water outlet through the buried drain pipe 64.

Step eight, paving ecological bags 54 filled with planting soil and fertilizer suitable for plant growth, connecting adjacent ecological bags 54 by using connecting buckles, and compacting in the paving process to ensure close contact between the ecological bags 54; after the construction is finished, backfilling planting soil to cover the surface of the ecological bag 54 to form a planting soil layer 51.

And ninthly, performing regular maintenance on the side slope, and further ensuring the stability of the side slope after the green plant seeds in the planting soil layer 51 are cultivated and grow into the ecological vegetation 52.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A waterproof bank protection, its characterized in that includes:

the soil conditioner comprises an expansive soil slope (1), wherein a solidified layer (11) is formed on the surface layer of the expansive soil slope (1) through a soil conditioner;

the slope top protection platform (2) is arranged at the slope top of the expansive soil side slope (1), and a slope top intercepting ditch (21) is arranged on the slope top protection platform (2);

the toe protection platform (3) is arranged at the toe of the expansive soil side slope (1), and a toe drainage ditch (31) is arranged on the toe protection platform (3);

the polymer waterproof layer (4) is laid on the surface of the cured layer (11);

the ecological protection layer (5) is laid on the surface of the high polymer waterproof layer (4);

and the water guide channel (6) is arranged on the ecological protective layer (5) and can guide water in the slope top intercepting drain (21) to the toe drain (31).

2. The water protection slope according to claim 1, wherein the ecological protection layer (5) comprises:

a planting soil layer (51) laid on the surface of the high polymer waterproof layer (4);

an ecological vegetation (52) disposed on the planting soil layer (51);

and the fixing component (53) locks the planting soil layer (51) on the outer side of the polymer waterproof layer (4).

3. The water protection slope according to claim 2, wherein the fixing member (53) comprises:

a geogrid (531) arranged in the planting soil layer (51);

one end of the self-drilling anchor rod (532) penetrates through the high polymer waterproof layer (4) and extends into the expansive soil slope (1), and the other end of the self-drilling anchor rod is positioned in the planting soil layer (51);

a support (533) in the planting soil layer (51) connected to the self-drilling anchor rod (532);

a fixture (534) connecting the support (533) and the geogrid (531).

4. The water protection slope according to claim 3, wherein the supporting member (533) is a bolt, a head of the bolt is provided with a threaded hole, and the head is screwed with the self-drilling anchor rod (532) through the threaded hole.

5. The water protection slope according to claim 4, wherein the fixing member (534) is a nylon rope, and the nylon rope binds the screw of the bolt to the geogrid (531).

6. The waterproof slope protection according to claim 2, wherein the water guide channel (6) comprises:

the first water guide pipe (61) is buried in the planting soil layer (51), is attached to the high polymer waterproof layer (4) and extends along the gradient direction of the expansive soil slope (1);

the second water guide pipe (62) is positioned in the toe protection platform (3) and extends in a direction perpendicular to the first water guide pipe (61), and one end of the first water guide pipe (61) is communicated with the second water guide pipe (62);

and the third water guide pipe (63) is positioned in the toe protection platform (3) and extends in a direction perpendicular to the second water guide pipe (62), one end of the third water guide pipe (63) is communicated with the second water guide pipe (62), and the other end of the third water guide pipe is communicated with the toe drainage ditch (31).

7. The water protection slope according to claim 1, wherein the ecological protection layer (5) comprises:

the ecological bags (54) are stacked from bottom to top along the gradient direction of the expansive soil side slope (1) and are attached to the outer side of the polymer waterproof layer (4);

a planting soil layer (51) covering the ecological bag (54);

and the ecological vegetation (52) is arranged on the planting soil layer (51).

8. The waterproof revetment according to claim 7, further comprising a gravel reverse filter layer (7), wherein the gravel reverse filter layer (7) is disposed on the top surface of the toe protection stage (3), and the lowest ecological bag (54) is disposed on the top surface of the gravel reverse filter layer (7).

9. The waterproof revetment according to claim 8, wherein said water conducting channel (6) comprises a drain pipe (64), said drain pipe (64) being arranged on the top surface of the toe guard (3) with one end extending into said gravel reverse filtering layer (7) and the other end facing said toe drain (31).

10. The waterproof revetment according to claim 9, wherein the water channel (6) further comprises a side ditch (65), the side ditch (65) is opened on the surface of the ecological protection layer (5) and extends along the slope direction of the expansive soil side slope (1), one end of the side ditch is communicated with the slope top intercepting ditch (21), and the other end of the side ditch extends to the toe drainage ditch (31).