Waterproof revetment

Abstract

The application belongs to the technical field of slope protection, and discloses a waterproof slope protection, which comprises an expansive soil slope, a top slope protection platform, a foot slope protection platform, a macromolecular waterproof layer, an ecological protection layer and a water guide channel. The surface layer of the expansive soil slope is formed into a solidified layer by a soil solidifying agent; the top slope protection platform is arranged on the top of the expansive soil slope; a top water intercepting ditch is arranged on the top slope protection platform; the foot slope protection platform is arranged on the foot of the expansive soil slope; a foot water drainage ditch is arranged on the foot slope protection platform; the macromolecular waterproof layer is formed by one or more than one of waterproof paint or a present prepared waterproof layer; the macromolecular waterproof layer is arranged on the surface of the solidified layer; the ecological protection layer is arranged on the surface of the macromolecular waterproof layer; the water guide channel is arranged on the ecological protection layer and can guide the water in the top water intercepting ditch to the foot water drainage ditch. In the application, the macromolecular waterproof layer can reliably protect the expansive soil slope and can buffer and release the stress generated by the deformation of the expansive soil slope.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology, and more particularly to a waterproof slope protection system. Background Technology

[0002] Expansive soil, a type of cohesive soil with significant water sensitivity, is used in slope protection structures. Its main characteristics include swelling and softening upon contact with water, shrinking and cracking upon water loss, and repeated cycles of expansion and contraction. After repeated wet-dry cycles, the strength of expansive soil decreases significantly, making it prone to landslides on slopes. Therefore, effective waterproofing measures for expansive soil slopes are crucial for addressing their problems.

[0003] To address the aforementioned issues, most existing remediation methods employ rigid structures such as geotechnical retaining walls or anti-slide piles to protect expansive soil slopes. However, these rigid slope protection methods do not take into account the characteristics of expansive soil's expansion when wet and shrinkage when dry. Expansive soil will expand when it comes into contact with water. If the soil expansion and deformation reaches a certain level and the stress is not released in time, it will damage the rigid structure and cause the slope protection structure to be destroyed. Summary of the Invention

[0004] The purpose of this invention is to provide a waterproof slope protection that can reliably protect expansive soil slopes and buffer and release the stress generated by the deformation of expansive soil slopes.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A waterproof slope protection system includes:

[0007] Expansive soil slope, wherein the surface layer of the expansive soil slope is solidified by a soil stabilizer;

[0008] A slope top protection platform is set at the top of the expansive soil slope, and a slope top intercepting ditch is set on the slope top protection platform;

[0009] A slope toe protection platform is set at the toe of the expansive soil slope, and a slope toe drainage ditch is provided on the slope toe protection platform;

[0010] A polymer waterproof layer is laid on the surface of the cured layer;

[0011] An ecological protective layer is laid on the surface of the polymer waterproof layer;

[0012] A water diversion channel, installed on the ecological protection layer, can guide water from the intercepting ditch at the top of the slope to the drainage ditch at the bottom of the slope.

[0013] Preferably, the ecological protection layer includes:

[0014] A planting soil layer is laid on the surface of the polymer waterproof layer;

[0015] Ecological vegetation is placed on the planting soil layer;

[0016] The fixing component locks the planting soil layer to the outside of the polymer waterproof layer.

[0017] Preferably, the fixing component includes:

[0018] Geogrid, installed in the planting soil layer;

[0019] The self-drilling anchor rod has one end extending through the polymer waterproof layer into the expansive soil slope, and the other end located in the planting soil layer;

[0020] The support member is located in the planting soil layer and is connected to the self-drilling anchor.

[0021] A fastener that connects the support and the geogrid.

[0022] Preferably, the support is a bolt, the head of which is provided with a threaded hole, and the head is screwed to the self-drilling anchor rod through the threaded hole.

[0023] Preferably, the fastener is a nylon rope, which binds the bolt's thread to the geogrid.

[0024] Preferably, the water guiding channel includes:

[0025] The first water pipe is buried in the planting soil layer, abuts against the polymer waterproof layer, and extends along the slope direction of the expansive soil slope.

[0026] The second water pipe is located in the slope protection platform and extends in a direction perpendicular to the first water pipe. One end of the first water pipe is connected to the second water pipe.

[0027] The third water pipe is located in the slope protection platform and extends in a direction perpendicular to the second water pipe. One end of the third water pipe is connected to the second water pipe, and the other end is connected to the slope drainage ditch.

[0028] Preferably, the ecological protection layer includes:

[0029] Multiple eco-bags are stacked from bottom to top along the slope direction of the expansive soil slope and attached to the outside of the polymer waterproof layer;

[0030] Planting soil layer, covering the ecological bag;

[0031] Ecological vegetation is placed on the planting soil layer.

[0032] Preferably, the system also includes a gravel filter layer, which is disposed on the top surface of the slope protection platform, and the bottommost ecological bag is disposed on the top surface of the gravel filter layer.

[0033] Preferably, the water guiding channel includes a drain pipe, which is installed on the top surface of the slope toe protection platform, with one end extending into the gravel filter layer and the other end facing the slope toe drainage ditch.

[0034] Preferably, the water diversion channel also includes a side ditch, which is opened on the surface of the ecological protection layer and extends along the slope direction of the expansive soil slope, with one end connected to the intercepting ditch at the top of the slope and the other end extending to the drainage ditch at the bottom of the slope.

[0035] The beneficial effects of this invention are:

[0036] Polymer waterproofing layers can reliably protect expansive soil slopes and buffer and release the stress generated by the deformation of expansive soil slopes. Compared with existing rigid structures, polymer waterproofing layers have excellent waterproofing, sealing, crack resistance and aging resistance, and are not easily damaged and fail.

[0037] The polymer waterproof layer can effectively control rainwater infiltration and water evaporation on the slope, stabilize the moisture content of the expansive soil slope, and effectively reduce the impact of the wet-dry cycle on the slope, thus ensuring the stability of the expansive soil slope.

[0038] By setting up a polymer waterproof layer, the waterproof slope protection has a certain degree of extensibility, which can effectively absorb and control the expansion force and deformation generated by the expansion of expansive soil slopes when exposed to water.

[0039] The surface of the expansive soil slope is solidified by a soil stabilizer, which enhances the cohesion of the original surface expansive soil, improves its engineering properties, and enhances its adhesion to the polymer waterproofing layer, thus maximizing the advantages of the polymer waterproofing layer.

[0040] The polymer waterproof layer has a uniform and controllable thickness, strong engineering adaptability, and due to its high durability, the need for subsequent slope maintenance and treatment is greatly reduced, resulting in significant protective effects. Attached Figure Description

[0041] Figure 1 This is a cross-sectional schematic diagram of the waterproof slope protection described in Embodiment 1 of the present invention;

[0042] Figure 2 This is a front view of the waterproof slope protection described in Embodiment 1 of the present invention;

[0043] Figure 3This is a schematic diagram of the structure of the geogrid, support and fixing components in the waterproof slope protection according to Embodiment 1 of the present invention.

[0044] Figure 4 This is a schematic diagram of the structure of the self-anchoring drill rod and support component in the waterproof slope protection according to Embodiment 1 of the present invention;

[0045] Figure 5 This is a cross-sectional schematic diagram of the waterproof slope protection described in Embodiment 2 of the present invention;

[0046] Figure 6 This is a front view of the waterproof slope protection described in Embodiment 2 of the present invention.

[0047] In the picture:

[0048] 1. Expansive soil slope; 11. Stabilizing layer;

[0049] 2. Slope top protective platform; 21. Slope top intercepting ditch;

[0050] 3. Slope toe protection platform; 31. Slope toe drainage ditch; 32. Seepage platform; 33. Slope toe support platform; 34. Reinforced concrete base slab; 35. Slope toe platform;

[0051] 4. Polymer waterproof layer;

[0052] 5. Ecological protective layer; 51. Planting soil layer; 52. Ecological vegetation; 53. Fixing components; 531. Geogrid; 532. Self-drilling anchor; 533. Support components; 534. Fixing components; 54. Ecological bags;

[0053] 6. Water diversion channel; 61. First water diversion pipe; 62. Second water diversion pipe; 63. Third water diversion pipe; 64. Drainage pipe; 65. Side ditch;

[0054] 7. Gravel filter layer. Detailed Implementation

[0055] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0056] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0058] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0059] Example 1

[0060] like Figures 1-4 As shown, this embodiment provides a waterproof slope protection system, including an expansive soil slope 1, a slope top protection platform 2, a slope toe protection platform 3, a polymer waterproof layer 4, an ecological protection layer 5, and a water diversion channel 6. The surface of the expansive soil slope 1 is solidified into a solidified layer 11 using a soil stabilizer. The slope top protection platform 2 is located at the top of the expansive soil slope 1, and a slope top intercepting ditch 21 is provided on the slope top protection platform 2. The slope toe protection platform 3 is located at the toe of the expansive soil slope 1, and a slope toe drainage ditch 31 is provided on the slope toe protection platform 3. The polymer waterproof layer 4 is laid on the surface of the solidified layer 11, the ecological protection layer 5 is laid on the surface of the polymer waterproof layer 4, and the water diversion channel 6 is located on the ecological protection layer 5, enabling water from the slope top intercepting ditch 21 to be directed to the slope toe drainage ditch 31.

[0061] In this invention, the polymer waterproof layer 4 can reliably protect the expansive soil slope 1 and buffer and release the stress generated by the deformation of the expansive soil slope 1. Compared with existing rigid structures, the polymer waterproof layer 4 has excellent waterproof performance, sealing performance, crack resistance, and aging resistance, and is not easily damaged or failed. The polymer waterproof layer 4 can effectively control rainwater infiltration and water evaporation on the slope surface, stabilize the moisture content of the expansive soil slope 1, and effectively reduce the impact of wet-dry cycles on the slope, thus ensuring the stability of the expansive soil slope 1. By setting the polymer waterproof layer 4, The waterproof slope protection has a certain degree of extensibility, which can effectively absorb and control the expansion force and deformation generated by the expansion of the expansive soil slope 1 when it encounters water. The surface of the expansive soil slope 1 is solidified into a solidified layer 11 by the soil solidifier, which enhances the cohesion of the original surface expansive soil and improves its engineering properties. Furthermore, the adhesion between the treated layer and the polymer waterproof layer 4 is also enhanced, maximizing the advantages of the polymer waterproof layer 4. In addition, the thickness of the polymer waterproof layer 4 is uniform and controllable, with strong engineering adaptability. Due to its high durability, the need for subsequent slope maintenance and treatment is greatly reduced, resulting in a significant protective effect.

[0062] In this embodiment, the slope top intercepting ditch 21 and the slope foot drainage ditch 31 extend in a direction perpendicular to the slope direction. The soil stabilizer used for surface solidification of the expansive soil slope 1 is specifically an aqueous solution of ionic soil stabilizer, mainly composed of sulfonated oil, which is a commonly used stabilizer in the field. The specific cost will not be elaborated here.

[0063] In this embodiment, the polymer waterproof layer 4 is composed of one or two of the first polymer waterproof layer and the second polymer waterproof layer, specifically the rubber modified bitumen waterproof coating or the ready-made roll waterproof layer described in patent application numbers 201811304143.6, 201811304665.6, and 201811306165.6.

[0064] The first polymer waterproof layer exhibits low-temperature flexibility ≤ -20℃ for 2 hours without cracking, bonding strength with the substrate ≥ 0.5MPa, water absorption rate ≤ 7.0% after 48 hours, heat resistance ≥ 90℃, stress relaxation ≤ 35% without detachment from the adhesive surface, bridging crack capacity ≥ 0.25mm, and joint deformation capacity ≥ 5000 cycles without damage.

[0065] The first polymer waterproof layer is formed by uniformly mixing the first component and the second component in a mass percentage ratio of 1:(0.1 to 1.0) and then drying it.

[0066] The mass percentages of each component in the first component are as follows:

[0067] Asphalt: 25.8%–56%;

[0068] Rubber: 6-15.4%;

[0069] Asphalt recycling agent: 6-24.5%;

[0070] Emulsifier: 0.8–4.0%;

[0071] Stabilizer: 0.03–5.0%;

[0072] Other additives: 0–5.0%;

[0073] Water: Balance.

[0074] The sum of the mass percentages of asphalt and asphalt rejuvenator is 46%–63%, the solid content of the first component is 60%–70%, and rubber accounts for 10%–22% of the total content of asphalt, asphalt rejuvenator, and rubber. The asphalt is at least one of coal tar pitch, petroleum asphalt, and natural asphalt. The asphalt rejuvenator is produced by atmospheric and vacuum distillation using naphthenic heavy oil as raw material. The rubber is a solid rubber, including star-shaped SBS, linear SBS, SBR, SIS, SEBS, butyl rubber, chloroprene rubber, cis-butadiene rubber, isoprene rubber, ethylene propylene rubber, silicone rubber, nitrile rubber, and EPDM rubber. The emulsifier is one or more of the following: sodium dodecylbenzene sulfonate, sodium butylnaphthalene sulfonate, sodium alkylene sulfonate, modified sodium lauryl sulfate, alkylphenol polyoxyethylene ether phosphate, rosinate soap, OP-10, octadecyltrimethylammonium chloride, didodecylammonium bromide, quaternary ammonium salt of mozzarella, and a mixture of alkyl imidazolines; the stabilizer is one or more of the following: CaCl2 and an acid; and other additives are one or more of the following: hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, alkali-swellable associative thickener, and associative polyurethane thickener.

[0075] 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, talc powder, kaolin, and rubber granules.

[0076] The second polymer waterproof layer has an adhesion strength to the substrate of ≥0.7MPa, a water absorption rate of ≤6.0% in 48h, a heat resistance of ≥95℃, a low-temperature flexibility of ≤-25℃ for 2h without cracks, a stress relaxation of ≤25%, and does not detach from the adhesive surface. It also has a crack bridging capacity of ≥1.0mm and a joint deformation capacity of ≥7000 cycles without damage.

[0077] The second polymer waterproof layer comprises at least two layers stacked sequentially, and multiple layers can be stacked alternately, one of which is the first polymer waterproof layer and the other is the reinforcing body layer.

[0078] The reinforcing carcass layer is made of carcass reinforcing material, and the second polymer waterproof layer also includes a second waterproof coating placed on the outer layer of the reinforcing carcass layer. The second waterproof coating can be made by applying and drying with the same or different raw materials as the first waterproof coating.

[0079] Optionally, the ecological protection layer 5 includes a planting soil layer 51, ecological vegetation 52, and fixing components 53. The planting soil layer 51 is laid on the surface of the polymer waterproof layer 4, the ecological vegetation 52 is placed on the planting soil layer 51, and the fixing components 53 lock the planting soil layer 51 to the outside of the polymer waterproof layer 4. This structural arrangement of the ecological protection layer 5 allows it to be safely and reliably laid on the outside of the expansive soil slope 1, achieving an ecological protection effect. The planting soil layer 51 contains nutrients and plant seeds, which, after cultivation, grow into ecological vegetation 52, effectively reducing soil erosion and thus serving as a waterproof slope protection measure.

[0080] Specifically, the fixing component 53 includes a geogrid 531, a self-drilling anchor 532, a support member 533, and a fixing member 534. The geogrid 531 is disposed within the planting soil layer 51. One end of the self-drilling anchor 532 extends through the polymer waterproof layer 4 into the expansive soil slope 1, while the other end is located within the planting soil layer 51. The support member 533 is located within the planting soil layer 51 and connected to the self-drilling anchor 532. The fixing member 534 connects the support member 533 and the geogrid 531. This specific structure of the fixing component 53 provides more reliable support for the planting soil layer 51. The self-drilling anchor 532, in conjunction with the polymer waterproof layer 4, not only prevents water seepage from the slope but also significantly enhances the stability of the slope.

[0081] More specifically, the support member 533 is a bolt, and the head of the bolt is provided with a threaded hole, through which the head is screwed to the self-drilling anchor 532. In this invention, the self-drilling anchor 532 is left outside the polymer waterproof layer 4 for 0.4-0.5m, and is protected by the threaded hole of the bolt head. The geogrid 531 is tied to the bolt, which can greatly increase the vertical bearing capacity of the geogrid 531, thereby effectively reducing the erosion of the slope surface by water and soil.

[0082] In this embodiment, the fastener 534 is a nylon rope. The nylon rope binds the bolt's thread to the geogrid 531. The nylon rope also secures the geogrid 531 to the bolt's thread along the thread marks, ensuring a safe and reliable fixation.

[0083] In addition to the above-mentioned configuration, the support member 533 can also be a metal rod, one end of which is welded to the self-drilling anchor rod 532 or connected to it by fasteners, and the fixing member 534 is a steel wire rope that binds the metal rod to the geogrid 531.

[0084] Specifically, the water diversion channel 6 includes a first water diversion pipe 61, a second water diversion pipe 62, and a third water diversion pipe 63. The first water diversion pipe 61 is buried in the planting soil layer 51, abutting the polymer waterproof layer 4, and extends along the slope direction of the expansive soil slope 1. The second water diversion pipe 62 is located in the slope toe protection platform 3, extending perpendicular to the first water diversion pipe 61, with one end of the first water diversion pipe 61 connected to the second water diversion pipe 62. The third water diversion pipe 63 is located in the slope toe protection platform 3, extending perpendicular to the second water diversion pipe 62, with one end connected to the second water diversion pipe 62 and the other end connected to the slope toe drainage ditch 31. This specific structure of the water diversion channel 6 gives the waterproof slope protection a "hidden" drainage characteristic, as it is not exposed on the slope surface, thus increasing the aesthetics of the waterproof slope protection.

[0085] In this embodiment, the slope toe protection platform 3 includes a seepage platform 32 and a slope toe support platform 33 built on the seepage platform 32. The slope toe drainage ditch 31 is located on the side of the slope toe support platform 33 away from the expansive soil slope 1. The second water guide pipe 62 is buried in the seepage platform 32. The upper end of the first water guide pipe 61 extends toward the top of the slope, and the lower end extends into the seepage platform 32 and communicates with the second water guide pipe 62. The third water guide pipe 63 is buried in the slope toe support platform 33. One end extends into the seepage platform 32 and communicates with the second water guide pipe 62, and the other end is connected to the slope toe drainage ditch 31 outside the slope toe support platform 33.

[0086] The specific construction method for waterproof slope protection in this embodiment is as follows:

[0087] Step 1: Level the expansive soil slope 1 to ensure there are no sharp objects on the slope surface, and clean and sweep the slope surface to remove obstacles.

[0088] Step 2: Spray the surface of the expansive soil slope 1 with an aqueous solution of ionic soil stabilizer. The spraying can be divided into 3-4 sprays. After each spraying, use a road mixer to wet mix the soil until the stabilized soil mixture is uniformly dry and wet.

[0089] Step 3: Immediately spread the well-mixed solidified soil mixture on a flat surface for shaping, compaction, etc. Finally, cure it under certain humidity for no less than 7 days to form the solidified layer 11. The entire construction process should avoid the rainy season.

[0090] Step 4: Excavate trenches according to the design, clear the soil, and build a seepage platform 32 at the toe of the slope. First, lay the second water guide pipe 62 longitudinally in the seepage platform 32, and then lay the third water guide pipe 63 transversely. One end of the third water guide pipe 63 is connected to the second water guide pipe 62, and the third water guide pipe 63 is laid with a 4% slope.

[0091] Step 5: Construct the slope top protective platform 2, and install a slope top intercepting ditch 21 on the slope top protective platform 2. Construct a slope toe support platform 33, and install a slope toe drainage ditch 31 on one side of the slope toe support platform 33. The other end of the third water guide pipe 63 is connected to the slope toe drainage ditch 31. A hole is reserved near the slope toe of the slope support platform 33 to facilitate the later laying of the first water guide pipe 61 along the slope direction. The slope top protective platform 2 has a slope of 4%, and the slope toe support platform 33 has a slope of 2%. In rainy areas, one or more intercepting ditches can be set up according to the specific terrain and actual conditions. Their function is to intercept surface water or rainwater above the slope top and allow rainwater on the slope surface to be drained away in a timely manner through the slope toe drainage ditch 31.

[0092] Step Six: Lay a polymer waterproof layer 4 on the surface of the cured layer 11 (according to the construction method described in patent applications 201811304143.6, 201811304665.6, and 201811306165.6, or the construction method of waterproof coatings described in the prior art). The polymer waterproof layer 4 must cover half the width of both the slope top protection platform 2 and the slope toe support platform 33. The thickness of the polymer waterproof layer 4 should not be less than 5mm, and can be determined according to the actual situation. The polymer waterproof layer 4 must be laid in one continuous application on site.

[0093] Step 7: After the polymer waterproof layer 4 is completed, it should be cured until it solidifies and meets the design standards. At the same time, check the polymer waterproof layer 4 for any construction cracks or leaks and repair them promptly to ensure long-term slope protection.

[0094] Step 8: Install self-drilling anchor bolts 532, leaving a 0.4-0.5m end length un-drilled into the slope. After drilling, grout into the self-drilling anchor bolts 532 using cement mortar or cement slurry. Then, install anchor washers on the exposed portion of the self-drilling anchor bolts 532, and then bolt them in. Finally, apply the first polymer waterproof layer to the joints between the self-drilling anchor bolts 532 and the polymer waterproof layer 4, as well as the joints between the self-drilling anchor bolts 532 and the bolts, for waterproofing. Place one self-drilling anchor bolt 532 approximately every 2m, with a length of 3m-9m, depending on the actual working conditions.

[0095] Step 9: Install the first water guide pipe 61 along the slope direction. Wrap the top of the first water guide pipe with geotextile and secure it. Bury the bottom of the water guide pipe 61 into the seepage platform 32 through the pre-reserved hole on the slope toe support platform 33. Apply the first polymer waterproof layer to the joint between the first water guide pipe 61 and the slope toe support platform 33.

[0096] Step 10: Start backfilling planting soil from the toe of the slope, compacting and leveling it to the position of the first anchor rod and bolt at the bottom to form planting soil layer 51. Then lay geogrid 531 and tie it to the bolt with nylon rope according to its thread marks. Depending on the actual working conditions, the binding can be done every 2-4 bolts. Use U-shaped nails to fix the overlap of geogrid 531. Backfilling planting soil and laying geogrid 531 are carried out in a coordinated manner. Backfill planting soil and lay geogrid 531 from the bottom of the slope to the top of the slope. The connection method between geogrid 531 and bolt can increase the vertical bearing capacity of geogrid 531.

[0097] Step 11: Regularly maintain the slope. After the green plant seeds in the planting soil layer 51 grow into ecological vegetation 52, the stability of the slope can be further guaranteed.

[0098] Example 2

[0099] like Figure 5 and Figure 6 As shown, this embodiment provides a waterproof slope protection method, which differs from Embodiment 1 in that:

[0100] The ecological protection layer 5 includes multiple ecological bags 54, a planting soil layer 51, and ecological vegetation 52. The multiple ecological bags 54 are stacked from bottom to top along the slope direction of the expansive soil slope 1 and are attached to the outside of the polymer waterproof layer 4. The planting soil layer 51 covers the ecological bags 54, and the ecological vegetation 52 is placed on the planting soil layer 51.

[0101] The ecological bag 54 makes the structure of the waterproof slope protection more stable, eliminating the need for the self-drilling anchor 532 and geogrid 531. The planting soil layer 51 contains nutrients and plant seeds, which will grow into ecological vegetation 52 after cultivation, effectively reducing soil erosion and thus playing the role of waterproof slope protection. In this embodiment, the ecological bag 54 is made of polypropylene or polyester fiber as raw material, and the bag is filled with planting soil and fertilizer suitable for plant growth.

[0102] Specifically, the waterproof slope protection also includes a gravel filter layer 7, which is set on the top surface of the slope toe protection platform 3, and the bottommost ecological bag 54 is set on the top surface of the gravel filter layer 7. The gravel filter layer 7 can provide support and filter water, and can effectively drain excess water from the ecological protection layer 5 to ensure its stability.

[0103] More specifically, the water guiding channel 6 includes a drain pipe 64, which is located on the top surface of the slope toe protection platform 3. One end of the drain pipe 64 extends into the gravel filter layer 7, and the other end faces the slope toe drainage ditch 31. The drain pipe 64 facilitates the removal of water from the gravel filter layer 7 and its discharge into the slope toe drainage ditch 31.

[0104] Specifically, the water diversion channel 6 also includes a side ditch 65, which is opened on the surface of the ecological protection layer 5 and extends along the slope direction of the expansive soil slope 1. One end is connected to the intercepting ditch 21 at the top of the slope, and the other end extends to the drainage ditch 31 at the bottom of the slope.

[0105] In this embodiment, the slope toe protection platform 3 includes a reinforced concrete base slab 34 and a slope toe platform 35 built on the reinforced concrete base slab 34. The slope toe drainage ditch 31 is set on the slope toe platform 35 and is located on the side of the reinforced concrete base slab 34 away from the expansive soil slope 1.

[0106] The specific construction method for waterproof slope protection in this embodiment is as follows:

[0107] Step 1: Level the expansive soil slope 1 to ensure there are no sharp objects on the slope surface, and clean and sweep the slope surface to remove obstacles.

[0108] Step 2: Spray the surface of the expansive soil slope 1 with an aqueous solution of ionic soil stabilizer. The spraying can be divided into 3-4 sprays. After each spraying, wet mix the soil using a road mixer until the stabilized soil mixture is uniformly dry and wet.

[0109] Step 3: Immediately spread the well-mixed solidified soil mixture on a flat surface for shaping, compaction, etc. Finally, cure it under certain humidity for no less than 7 days to form the solidified layer 11. The entire construction process should avoid the rainy season.

[0110] Step 4: Construct the slope top protective platform 2, install a slope top intercepting ditch 21 on the slope top protective platform 2, construct a reinforced concrete base slab 34 and a slope toe platform 35, install a slope toe drainage ditch 31 on the slope toe platform 35, construct a slope surface water guide platform, and install a side ditch 65 on the slope surface water guide platform. The slope top protective platform 2 has a 4% slope, and the slope toe drainage ditch 31 platform has a 2% slope. In rainy areas, one or more intercepting ditches can be constructed depending on the specific terrain and actual conditions. Their function is to intercept surface runoff or rainwater above the slope top and allow rainwater on the slope surface to be drained away promptly through the slope toe drainage ditch 31.

[0111] Step 5: Lay a polymer waterproof layer 4 on the surface of the cured layer 11 (according to the construction method described in patent applications 201811304143.6, 201811304665.6, and 201811306165.6, or the construction method of waterproof coatings described in the prior art). The polymer waterproof layer 4 must cover half the width of both the slope top protection platform 2 and the slope toe platform 35. The thickness of the polymer waterproof layer 4 should not be less than 5mm, and can be determined according to the actual situation. The polymer waterproof layer 4 must be laid in one continuous application on site.

[0112] Step Six: After the polymer waterproof layer 4 is completed, it should be cured until it solidifies and meets the design standards. Simultaneously, check the polymer waterproof layer 4 for any construction cracks or leaks and repair them promptly to ensure long-term slope protection.

[0113] Step 7: Lay a gravel filter layer 7 at the foot of the slope and set up a drainage outlet by burying a drainage pipe 64.

[0114] Step 8: Lay out ecological bags 54 containing planting soil and fertilizer suitable for plant growth. Connect adjacent ecological bags 54 with fasteners. Compact the bags during the laying process to ensure close contact between them. After construction is completed, backfill with planting soil to cover the surface of the ecological bags 54 to form a planting soil layer 51.

[0115] Step 9: Regularly maintain the slope. After the green plant seeds in the planting soil layer 51 grow into ecological vegetation 52, the stability of the slope can be further guaranteed.

[0116] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A waterproofed slope, characterized by, The application relates to an expansive soil slope (1), a slope top protection platform (2) arranged on the slope top of the expansive soil slope (1), a slope foot protection platform (3) arranged on the slope foot of the expansive soil slope (1), a high polymer waterproof layer (4) arranged on the surface of the solidified layer (11), an ecological protection layer (5) arranged on the surface of the high polymer waterproof layer (4), and a water guide channel (6) arranged on the ecological protection layer (5). The slope top protection platform (2) is provided with a slope top water intercepting ditch (21); the slope foot protection platform (3) is provided with a slope foot drainage ditch (31); the high polymer waterproof layer (4) is composed of one or two layers of first high polymer waterproof layer and second high polymer waterproof layer; the second high polymer waterproof layer is composed of at least two layers which are stacked in sequence and can be alternately stacked in multiple layers; one layer is the first high polymer waterproof layer, and the other layer is a reinforced carcass layer which is prepared from a carcass reinforcing material; the first high polymer waterproof layer (4) is formed by uniformly mixing a first component and a second component in a mass percentage of 1: (0.1-1.0) and then drying and solidifying; the first component comprises asphalt, solid rubber, asphalt regenerant, emulsifier and other additives; the solid rubber is one or more of star-shaped SBS, linear SBS, styrene-butadiene rubber, SIS, SEBS, butyl rubber, chloroprene rubber, cis-butadiene rubber, isoprene rubber, ethylene-propylene rubber, silicone rubber, nitrile rubber, ternary ethylene-propylene rubber or natural rubber; the other additives are one or more mixtures of hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, alkali-swellable associative thickener and associative polyurethane thickener; the ecological protection layer (5) comprises a planting soil layer (51), ecological vegetation (52) and a fixing assembly (53) which locks the planting soil layer (51) on the outside of the high polymer waterproof layer (4); the fixing assembly (53) comprises a geogrid (531) vertically arranged in the planting soil layer (51), a self-drilling anchor rod (532) which penetrates into the expansive soil slope (1) through the high polymer waterproof layer (4) and is located in the planting soil layer (51), a support (533) located in the planting soil layer (51) and connected to the self-drilling anchor rod (532), and a fixing member (534) connected to the support (533) and the geogrid (531); and the water guide channel (6) can guide the water in the slope top water intercepting ditch (21) to the slope foot drainage ditch (31). The support (533) is a bolt, the 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. The fixing member (534) is a nylon rope which binds the screw rod of the bolt on the geogrid (531). The water guide channel (6) comprises ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The waterproofing slope protection according to claim 1, characterized in that ​ 3. The waterproofing slope protection according to claim 2, characterized in that ​ 4. The waterproofing slope protection according to claim 1, wherein ​ A first water guide pipe (61) is embedded in the planting soil layer (51) and abuts against the high polymer waterproof layer (4), extending along the slope direction of the expansive soil slope (1); A second water guide pipe (62) is located in the slope foot protection platform (3) and extends in a direction perpendicular to the first water guide pipe (61), one end of the first water guide pipe (61) being communicated with the second water guide pipe (62); A third water guide pipe (63) is located in the slope foot 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) being communicated with the second water guide pipe (62) and the other end being communicated with the slope foot drainage ditch (31).

5. The waterproofing slope protection according to claim 1, wherein The ecological protection layer (5) comprises: A plurality of ecological bags (54) are stacked from bottom to top along the slope direction of the expansive soil slope (1) and abut against the outer side of the high polymer waterproof layer (4); A planting soil layer (51) covers the ecological bags (54); Ecological vegetation (52) is arranged on the planting soil layer (51).

6. The water-proof revetment according to claim 5, wherein, A gravel anti-filtration layer (7) is arranged on the top surface of the slope foot protection platform (3), and the lowest layer of the ecological bags (54) is arranged on the top surface of the gravel anti-filtration layer (7).

7. The waterproofing slope protection according to claim 6, characterized in that The water guide channel (6) comprises a drainage pipe (64) arranged on the top surface of the slope foot protection platform (3), one end of the drainage pipe (64) extending into the gravel anti-filtration layer (7), and the other end extending towards the slope foot drainage ditch (31).

8. The waterproofing slope protection according to claim 7, characterized in that The water guide channel (6) further comprises a side ditch (65) opened on the surface of the ecological protection layer (5) and extending along the slope direction of the expansive soil slope (1), one end of the side ditch (65) being communicated with the slope top water interception ditch (21) and the other end extending to the slope foot drainage ditch (31).

Images