Seepage-proofing construction method for high-standard farmland transformation ditch

Abstract

The invention relates to the technical field of building construction, in particular to an anti-seepage construction method for a high-standard farmland transformation ditch, which comprises the following steps: S1, surveying and setting out; s2, cleaning the surface of the construction area; s3, a ditch is excavated; s4, laying a base layer cement blanket; s5, laying a cover layer cement blanket; s6, watering and curing; and S7, checking and accepting. According to the invention, the ground nails covering the surface of the base layer cement blanket of the cover layer cement blanket are arranged, so that structural weak points formed at the parts punctured by the ground nails are avoided, and the generation probability of hidden leakage channels is obviously reduced. Meanwhile, the paving mode of the double-layer cement blanket is arranged, the overall structural strength of the ditch can be improved, and the service life of the ditch is further prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a ditch anti-seepage construction method for high-standard farmland transformation. Background Art

[0002] In traditional construction methods, drainage ditches are usually treated by laying colored strips, anti-seepage geotextiles or pouring concrete after excavation. However, in poor geological sections, colored strips cannot meet the anti-seepage requirements, and anti-seepage geotextiles do not have reinforcement functions and are easily washed away by summer rainstorms. In addition, drainage and flood discharge ditches are located on the hillside, and concrete can only be transported and poured by hand, resulting in low efficiency, high cost, and difficulty in ensuring construction quality, and prone to cold joint seepage problems.

[0003] In view of this, a construction method of using cement blankets to reinforce and prevent ditches has emerged in the prior art. The construction method specifically includes the following steps: first, dig the ditch; then, cut the cement blanket of appropriate size according to the shape and size of the ditch, and then lay the cement blanket on the bottom and both sides of the ditch to ensure that the cement blanket fits tightly to the excavation surface of the ditch without leaving any gaps. Subsequently, the laid cement blanket is sprinkled with water, and after it is completely solidified, a strong and impermeable protective layer can be formed. Compared with traditional construction methods, the use of cement blankets for ditch reinforcement and anti-seepage treatment has the advantages of fast construction speed, low cost, and good anti-seepage effect. It is particularly suitable for engineering fields such as high-standard farmland transformation. However, there are still some shortcomings, as described below: In the construction of cement blanket, ground nails are usually set at intervals. On the one hand, the ground nails can further fix the cement blanket to prevent displacement or sliding; on the other hand, the ground nails can also reinforce the slope of the ditch to a certain extent and improve the stability of the overall structure of the ditch. However, after the ground nails pierce the cement blanket, the puncture site will form a structural weak point. After the cement blanket solidifies, it is easy to form a hidden leakage channel, causing erosion of the ditch foundation, which in turn affects the anti-seepage effect and service life of the ditch.

[0004] Therefore, how to improve the waterproof performance of the part where the ground nails pierce the cement blanket and extend the structural life of the ditch is a technical problem that needs to be solved urgently in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a ditch anti-seepage construction method for high-standard farmland transformation to address the problem in the prior art that after the ground nails pierce the cement blanket, a structural weak point will be formed at the puncture site, and after the cement blanket is cured, a hidden leakage channel is easily formed, which leads to erosion of the ditch foundation, thereby affecting the anti-seepage effect and service life of the ditch.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A construction method for anti-seepage of ditches in the transformation of high-standard farmland, including the following steps: S1. Survey and setting out: According to the design drawings, measure and set out the position and dimensions of the ditch, and use lime to mark the structural side lines of the ditch; S2. Clearing the surface of the construction area: Remove weeds, garbage, stones and other sundries in the ditch construction area to ensure that the construction area is clean and tidy, laying the foundation for subsequent construction; S3. Excavating the ditch: The ditch is excavated in a longitudinal sectional and horizontal layered manner. During the excavation process, pay attention to maintaining the slope and direction of the ditch to ensure that the excavation of the ditch meets the design requirements; after the excavation is completed, level the bottom and side walls of the ditch, removing sharp soil blocks and stones to prevent damage to the subsequent laid cement blanket; S4. Laying the base layer cement blanket: Cut the base layer cement blanket of a matching size according to the shape and dimensions of the ditch, and unfold the base layer cement blanket along the bottom and both sides of the ditch in turn to ensure that the base layer cement blanket fits tightly against the ditch excavation surface without gaps; while laying the base layer cement blanket, set ground nails at intervals in the slope area corresponding to the ditch to fix the base layer cement blanket to prevent it from shifting or sliding; S5. Laying the cover layer cement blanket: After the base layer cement blanket is laid, lay the cover layer cement blanket; the cover layer cement blanket is set in the slope area of the ditch, and the cover layer cement blanket is used to cover the ground nails set on the surface of the base layer cement; S6. Sprinkling and curing: Sprinkle water on the laid base layer cement blanket and cover layer cement blanket to hydrate and solidify the cement in the cement blanket; after the sprinkling is completed, wait for the cement blanket to cure, and avoid trampling by personnel or heavy object pressing during this period to prevent damage to the cured layer; S7. Inspection and acceptance: After the base layer cement blanket and the cover layer cement blanket are completely cured, conduct a comprehensive inspection and acceptance; focus on verifying the curing status of the base layer and the cover layer cement blanket, whether there are risk points of cracks or leakage. If problems are found during the inspection, repair them in time to ensure the anti-seepage effect and service life of the ditch.

[0007] Preferably, the base layer cement blanket is constructed by transverse paving; the overlapping side lines of the base layer cement blanket are perpendicular to the central axis of the ditch, and the upstream base layer cement blanket is pressed above the downstream base layer cement blanket.

[0008] Preferably, the overlapping side lines of the cover layer cement blanket are staggered from the overlapping side lines of the base layer cement blanket.

[0009] Preferably, a drainage ditch is provided at the intersection area between the bottom surface and the slope of the ditch, and the drainage ditch is used to drain the accumulated water gathered at the bottom of the ditch during the sprinkling and curing operation of the base layer and the cover layer cement blanket.

[0010] Preferably, an anchoring groove is also provided at the top of the ditch, and the edge portions of the base layer cement blanket and the cover layer cement blanket are buried in the anchoring groove.

[0011] Preferably, a wire mesh is also provided between the cover layer cement blanket and the base layer cement blanket.

[0012] Preferably, the ground nail includes an anchor rod body, one end of the anchor rod body is a spiked structure, and the other end is connected with a retaining piece. The retaining piece is arranged around the cross-sectional edge of the anchor rod body, and the retaining piece is used for fitting against the base layer cement blanket; A support member is also provided on the retaining piece. The support member and the retaining piece are in a rotatable connection and cooperation, and a hanging tooth is also provided at the end of the support member; the support member has a first form and a second form; In the first form, the central axis of the support member is parallel to the central axis of the ground nail; in the second form, the support member is in contact with the base layer cement blanket; When laying the cover layer cement blanket, first adjust the support member to the first form. After the cover layer cement blanket is unfolded along the slope of the ditch, the hanging tooth penetrates into the inside of the cover layer cement blanket to realize the connection between the cover layer cement blanket and the ground nail. And at this time, a fitting gap is formed between the base layer cement blanket and the cover layer cement blanket; When performing the watering and curing operation, water is injected into the fitting gap between the base layer cement blanket and the cover layer cement blanket. After wetting the opposite surfaces of the base layer cement blanket and the cover layer cement blanket; a pulling force is applied to the cover layer cement blanket to cause it to displace upward along the slope. During this process, the cover layer cement blanket drives the support member to rotate toward the top side of the ditch slope and finally forms the second form.

[0013] Preferably, the support member is arranged in a sheet-like structure.

[0014] Preferably, a grouting channel is arranged inside the anchor rod body. A limiting groove is arranged on one side of the anchor rod body close to the spiked structure. A slurry outlet hole communicating with the grouting channel is arranged at the bottom of the limiting groove; a sealing plate is also clamped in the limiting groove. The sealing plate and the anchor rod body are in a separable connection and cooperation; when the support member changes from the first form to the second form, the cover layer cement pushes air into the grouting channel, increasing the internal pressure thereof, and then the sealing plate can be disengaged from the limiting groove.

[0015] Preferably, the outer surface of the anchor rod body is arranged in a rough surface structure.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are: 1. For a construction method of ditch anti-seepage in the renovation of high-standard farmland according to the present invention, ground nails are set on the surface of the base layer cement blanket covering the cover layer cement blanket, avoiding the structural weak points formed at the puncture parts of the ground nails, thereby significantly reducing the generation probability of concealed leakage channels. At the same time, the paving method of double-layer cement blanket is set, which can also improve the overall structural strength of the ditch and further extend the service life of the ditch; 2. For a construction method of ditch anti-seepage in the renovation of high-standard farmland according to the present invention, the support member is set to be connected with the cover layer cement blanket, so that a fitting gap is formed between the cover layer cement blanket and the base layer cement blanket after the cover layer cement blanket is fixed; during the curing operation of the cement blanket, water can be directly transported to the surface of the base layer cement blanket through the fitting gap between the two, ensuring that the cement powder in the base layer cement blanket can be fully activated by absorbing water; for the cover layer cement blanket, the water absorption can be effectively reduced, thus avoiding the scouring loss of the cement powder inside it, so as to ensure the curing quality of the base layer cement blanket and the cover layer cement blanket; at the same time, through the fitting gap formed between the cover layer cement blanket and the base layer cement blanket after the cover layer cement blanket is fixed, the construction personnel can directly observe the progress and effect of the hydration reaction of the base layer cement blanket, so that the water consumption can be adjusted in time according to the actual situation during the construction process, further ensuring the curing quality of the cement blanket. On the other hand, with this structural setting, after injecting water into the fitting gap between the base layer cement blanket and the cover layer cement blanket, a tensile force is applied to the cover layer cement blanket to drive the support member to change from the first form to the second form; during this process, the cover layer cement blanket quickly hits the base layer cement blanket under the action of its own gravity, so that the cover layer cement blanket can fit more closely with the base layer cement blanket, further reducing the risk of water leakage from the joint gap between the two; at the same time, during the process of the cover layer cement blanket quickly hitting the base layer cement blanket, the air between the two can be discharged, avoiding the formation of bubble cavities, so as to improve the structural strength after the cement blanket is cured and extend the service life of the ditch; 3. The described construction method for seepage prevention of ditches in the renovation of high-standard farmland according to the present invention injects cement slurry into the soil layer of the ditch foundation through the grouting channel, which can enhance the bonding strength between the ground nails and the ditch foundation and improve the effect of the ground nails anchoring the base cement blanket. Further, after the cement slurry is injected, a swelling structure can be formed on one side of the spiked structure of the anchor rod body, thereby further improving the anti-pulling ability of the ground nails, making the base cement blanket more firmly fixed on the ditch foundation and enhancing the stability and durability of the ditch structure. Still further, by quickly hitting the cover layer cement blanket against the base cement blanket to squeeze air into the grouting channel to push the plugging plate out and open the grouting hole of the grouting method, no additional construction equipment is required for auxiliary operation, which simplifies the construction process and improves the construction efficiency. Even further, after the cover layer cement blanket fits against the base cement blanket, the cement slurry flows out from the slurry outlet hole to fill the gap between the anchor rod body and the soil layer of the ditch foundation. At this time, the anchor rod body is stably fixed in the soil layer of the foundation, avoiding the disturbance of the soil layer by the anchor rod body after grouting, resulting in excessive soil slag mixing into the cement slurry and affecting the curing quality of the cement slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic flow chart of a construction method for seepage prevention of ditches in the renovation of high-standard farmland; Figure 2 is a schematic structural diagram of the connection between the ground nails and the cover layer cement blanket in the first form; Figure 3 is a schematic structural diagram of the cover layer cement blanket pressing the ground nails by its own weight to cause an upward displacement of one side of the spiked structure of the anchor rod body; Figure 4 is a schematic structural diagram of the connection between the ground nails and the cover layer cement and the base cement blanket in the second form; Figure 5 is a schematic structural diagram of the slurry outlet hole opened after the plugging plate is disengaged from the limiting groove; Figure 6 is an isometric structural diagram of the ground nails; Figure 7 is a sectional structural diagram of the ground nails.

[0018] Reference numerals in the figures: 1 - anchor rod body, 2 - retaining piece, 3 - support member, 4 - hanging teeth, 5 - grouting channel, 6 - limiting groove, 7 - slurry outlet hole, 8 - plugging plate, 9 - drainage ditch, 10 - anchoring ditch, 11 - base cement blanket, 12 - cover layer cement blanket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present invention will be described in detail below with reference to the accompanying drawings.

[0020] To make the objectives, 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 accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of them.

[0021] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0022] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0023] It should be noted that like reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0025] Embodiment 1: As Figures 1 to 5 shown, a construction method for seepage prevention of ditches in the renovation of high-standard farmland according to the present invention includes the following steps: S1. Measuring and setting out: According to the design drawings, measure and set out the position and dimensions of the ditch, and use lime to draw lines to mark the structural edges of the ditch; S2. Clearing the surface of the construction area: Remove weeds, garbage, stones and other sundries in the construction area of the ditch to ensure that the construction area is clean and tidy, laying a foundation for subsequent construction; S3. Excavating the ditch: The ditch is excavated in a longitudinal sectional and horizontal layered manner. During the excavation process, pay attention to maintaining the slope and direction of the ditch to ensure that the excavation of the ditch meets the design requirements; after the excavation is completed, level the bottom and side walls of the ditch, removing sharp soil blocks and stones to prevent damage to the subsequent laid cement blanket; S4. Laying the base layer cement blanket 11: Cut the base layer cement blanket 11 to match the shape and size of the ditch. Unroll the base layer cement blanket 11 along the bottom and both sides of the ditch in sequence, ensuring that the base layer cement blanket 11 fits tightly against the excavation surface of the ditch without leaving any gaps. While laying the base layer cement blanket 11, set ground nails at intervals in the slope area corresponding to the ditch to fix the base layer cement blanket 11 and prevent it from shifting or sliding. S5. Laying the cover layer cement blanket 12: After the base layer cement blanket 11 is laid, lay the cover layer cement blanket 12. The cover layer cement blanket 12 is set in the slope area of the ditch and is used to cover the ground nails set on the surface of the base layer cement. S6. Sprinkling water for curing: Carry out sprinkling treatment on the laid base layer cement blanket 11 and cover layer cement blanket 12 to hydrate and consolidate the cement in the cement blanket. After sprinkling water, wait for the cement blanket to cure. During this period, avoid personnel trampling or heavy object pressing to prevent damage to the cured layer. S7. Inspection and acceptance: After the base layer cement blanket 11 and the cover layer cement blanket 12 are completely cured, conduct a comprehensive inspection and acceptance. Focus on verifying the curing status of the base layer and the cover layer cement blanket 12, and check whether there are any risk points of cracks or leakage. If problems are found during the inspection, repair them in a timely manner to ensure the anti-seepage effect and service life of the ditch.

[0026] Adopting the method for anti-seepage construction of ditches for high-standard farmland transformation described in the present invention, the ground nails on the surface of the base layer cement blanket 11 covered by the cover layer cement blanket 12 are set, avoiding the structural weak points formed at the puncture parts of the ground nails, thus significantly reducing the generation probability of hidden leakage channels. At the same time, setting the paving method of double-layer cement blankets can also improve the overall structural strength of the ditch and further extend the service life of the ditch.

[0027] Specifically, in this embodiment, in the operation of step S1, measuring and lofting, GPS-RTK is used for measurement, and two loftings are required. The first time, the clearing line of the ditch is lofted and marked with lime powder. To reduce the impact on the soil layer, the clearing line should be accurate without disturbing the vegetation and soil layer outside the construction range. After the clearing is completed, the second measurement is carried out to loft the upper opening line and the lower opening line of the ditch, marked with lime powder, and the side line and elevation are detected at any time during the excavation process.

[0028] In the operation of step S3, excavating the ditch, the ditch soil is constructed by manual excavation, adopting longitudinal segmentation and horizontal layered excavation. The excavation depth of one layer is based on the height of the iron shovel, controlled at 20 - 30 cm. The excavated soil is evenly spread on both sides of the upper opening line of the ditch and gently tamped with a shovel, and it is strictly prohibited to stack it concentratedly. When encountering large stones during the excavation process, leave them untouched and do not forcefully dig them out.

[0029] Step S6, watering and curing is carried out in two times. The first watering is to use a sprayer to evenly spray water mist on the surface of the cement blanket. The water volume is controlled at 5~8kg / m2, which is adjusted appropriately according to the weather and temperature conditions, so that the surface of the cement blanket is completely soaked but no water accumulates or flows. After the first watering, the color of the cement blanket will gradually darken, indicating that the cement blanket is undergoing a hydration reaction, and the second watering operation can be started in about two hours. There is no water volume requirement for the second watering. When water accumulates or flows on the surface of the cement blanket, it indicates that the cement blanket is saturated with water.

[0030] As a preferred embodiment, on the basis of the above method, further, the base cement blanket 11 is constructed by a horizontal paving method; the overlapping edge line of the base cement blanket 11 is perpendicular to the central axis of the ditch, and the upstream base cement blanket 11 is pressed above the downstream base cement blanket 11.

[0031] Specifically, the overlap width of the base cement blanket 11 is not less than 100 mm, and the overlap joint is brushed twice with cement slurry with glue powder. This structural setting can effectively prevent water from leaking from the overlap joint, further improving the anti-seepage performance of the ditch. At the same time, the upstream base cement blanket 11 is pressed above the downstream base cement blanket 11, which can make the water flow through the overlap joint more smoothly on the one hand; on the other hand, it can prevent the water flow from directly impacting the overlap joint of the base cement blanket 11, thereby further reducing the risk of water leakage from the overlap joint of the base cement blanket 11 and extending the service life of the ditch.

[0032] As a preferred embodiment, on the basis of the above-mentioned method, the overlapping edge line of the cover layer cement blanket 12 is further staggered with the overlapping edge line of the base layer cement blanket 11. With this structural setting, the risk of leakage can be further reduced, while enhancing the connection stability between the cover layer cement blanket 12 and the base layer cement blanket 11. In this embodiment, the overlapping width of the cover layer cement blanket 12 is also not less than 100 mm, and the overlapping seam is brushed twice with cement slurry with glue powder to ensure the sealing of the overlapping part.

[0033] As a preferred embodiment, based on the above method, a drainage ditch 9 is further provided at the junction of the ditch bottom and the slope, and the drainage ditch 9 is used to discharge the accumulated water at the bottom of the ditch during the sprinkling and curing operation of the base layer and the cover layer cement blanket 12.

[0034] Specifically, in this embodiment, the slope of the drainage ditch 9 is the same as that of the ditch, and the width and depth of the drainage ditch 9 are determined according to the size of the ditch and actual needs; after the base layer and the cover layer cement blanket 12 are cured, concrete is poured into the drainage ditch 9 to fill it up, so that the drainage ditch 9 and the bottom of the ditch form a flat whole, avoiding affecting the use of the ditch. The setting of the drainage ditch 9 in this embodiment can timely discharge the accumulated water generated during the sprinkling and curing operation, prevent the accumulated water from having an adverse effect on the curing effect of the cement blanket, and thus improve the construction quality of the ditch.

[0035] Furthermore, in this embodiment, during the operation of filling the drainage ditch 9 with concrete, the horizontal joint formed between the cover layer cement blanket 12 and the base layer cement blanket 11 can also be buried and sealed, thereby further improving the anti-seepage performance of the ditch. In addition, when pouring concrete into the drainage ditch 9, attention should be paid to controlling the pouring speed and vibration intensity of the concrete to avoid damaging the already cured cement blanket.

[0036] As a preferred implementation manner, on the basis of the above manner, further, an anchor ditch 10 is also provided at the top of the ditch, and the edge portions of the base layer cement blanket 11 and the cover layer cement blanket 12 are buried in the anchor ditch 10.

[0037] The setting of the anchor ditch 10 in this embodiment, on the one hand, can effectively fix the base layer cement blanket 11 and the cover layer cement blanket 12, enhance the bonding strength between the cement blanket and the ditch foundation, and further improve the forming quality of the ditch. On the other hand, after the edge portions of the base layer cement blanket 11 and the cover layer cement blanket 12 are buried in the anchor ditch 10, the gap between the cement blanket and the ditch foundation can be sealed, preventing water from seeping in from the top, thereby further improving the anti-seepage performance of the ditch and extending the service life of the ditch.

[0038] Specifically, the depth and width of the anchor ditch 10 are determined according to actual needs, ensuring that the edge portion of the cement blanket can be completely buried therein. The material filled in the anchor ditch 10 in this embodiment is concrete. When burying the edge portion of the cement blanket, attention should be paid to keeping it flat and tightly fitting, avoiding voids or wrinkles, to ensure the lasting and effective fixation of the cement blanket.

[0039] As a preferred implementation manner, on the basis of the above manner, further, a wire mesh is also provided between the cover layer cement blanket 12 and the base layer cement blanket 11.

[0040] The use of the wire mesh in this embodiment can effectively disperse and resist external loads, reduce the risk of deformation or damage of the ditch curing layer caused by the action of the loads, and thus further enhance the structural stability and durability of the ditch.

[0041] Example 2: AsFigures 2 to 7 As shown in Figures 2 to 7 , in a method for anti-seepage construction of ditches for high-standard farmland renovation according to the present invention, on the basis of the above method, further, the ground nail includes an anchor rod body 1, one end of the anchor rod body 1 is a spiked structure, and the other end is connected with a retaining piece 2. The retaining piece 2 is arranged around the cross-sectional edge of the anchor rod body 1, and the retaining piece 2 is used for fitting the base cement blanket 11. A support member 3 is further arranged on the retaining piece 2. The support member 3 and the retaining piece 2 are in a rotatable connection and cooperation. A hanging tooth 4 is further arranged at the end of the support member 3. The support member 3 has a first form and a second form. In the first form, the central axis of the support member 3 is parallel to the central axis of the ground nail. In the second form, the support member 3 fits the base cement blanket 11. When laying the cover cement blanket 12, first adjust the support member 3 to the first form. After the cover cement blanket 12 is unfolded along the ditch slope, the hanging tooth 4 penetrates into the cover cement blanket 12 to realize the connection between the cover cement blanket 12 and the ground nail. And at this time, a fitting gap is formed between the base cement blanket 11 and the cover cement blanket 12. When performing the watering and curing operation, water is injected into the fitting gap between the base cement blanket 11 and the cover cement blanket 12. After wetting the opposite surfaces of the base cement blanket 11 and the cover cement blanket 12; a pulling force is applied to the cover cement blanket 12 to cause it to displace upward along the slope. During this process, the cover cement blanket 12 drives the support member 3 to rotate towards the top side of the ditch slope and finally forms the second form.

[0042] In the above construction method, the cement blanket is laid in a double-layer manner. During the curing operation, water penetrates through the cover layer cement blanket 12 into the base layer cement blanket 11. In this way, it is easy to have penetration dead angles in the base layer cement blanket 11, resulting in the incomplete activation of the cement powder in the base layer cement blanket 11. And the cover layer cement blanket 12 may have the cement powder washed away due to excessive watering, thus affecting the curing quality of the cement blanket. Based on this, in this embodiment, the support member 3 is arranged to be connected to the cover layer cement blanket 12, so that a fitting gap is formed between the cover layer cement blanket 12 and the base layer cement blanket 11 after the cover layer cement blanket 12 is fixed. During the curing operation of the cement blanket, water can be directly transported to the surface of the base layer cement blanket 11 through the fitting gap between the two, ensuring that the cement powder in the base layer cement blanket 11 can fully absorb water and be activated. For the cover layer cement blanket 12, the water absorption can be effectively reduced, thus avoiding the washing away of the cement powder inside it. In this way, the curing quality of the base layer cement blanket 11 and the cover layer cement blanket 12 is ensured. At the same time, through the fitting gap formed between the cover layer cement blanket 12 and the base layer cement blanket 11 after the cover layer cement blanket 12 is fixed, the construction personnel can directly observe the progress and effect of the hydration reaction of the base layer cement blanket 11, so that the water consumption can be adjusted in time according to the actual situation during the construction process, further ensuring the curing quality of the cement blanket.

[0043] On the other hand, in this embodiment, after injecting water into the fitting gap between the base layer cement blanket 11 and the cover layer cement blanket 12, a pulling force is applied to the cover layer cement blanket 12 to drive the support member 3 to change from the first form to the second form. During this process, the cover layer cement blanket 12 quickly hits the base layer cement blanket 11 under the action of its own gravity. In this way, the cover layer cement blanket 12 can fit more closely with the base layer cement blanket 11, further reducing the risk of water leakage from the joint gap between the two. At the same time, during the process of the cover layer cement blanket 12 quickly hitting the base layer cement blanket 11, the air between the two can be discharged, avoiding the formation of bubble cavities. In this way, the structural strength of the cement blanket after curing is improved, and the service life of the ditch is extended.

[0044] As a preferred implementation method, on the basis of the above method, further, the support member 3 is arranged in a sheet structure. With this structural arrangement, it is further ensured that the cover layer cement blanket 12 and the base layer cement blanket 11 fit closely, avoiding the formation of bubble cavities, improving the structural strength of the cement blanket after curing, and extending the service life of the ditch.

[0045] Example 3: As Figure 3 、 Figure 5 and Figure 7As shown, the anti-seepage construction method for ditch reconstruction of high-standard farmland described in the present invention is based on the above method, and further, a grouting channel 5 is arranged inside the anchor body 1, and a limiting groove 6 is arranged on the side of the anchor body 1 close to the spike structure, and a slurry outlet hole 7 connected to the grouting channel 5 is arranged at the bottom of the limiting groove 6; a sealing plate 8 is also clamped in the limiting groove 6, and the sealing plate 8 and the anchor body 1 are detachably connected; when the support member 3 is transformed from the first form to the second form, the cover layer cement pushes the air into the grouting channel 5, thereby increasing the internal pressure, and then the sealing plate 8 can be removed from the limiting groove 6.

[0046] Specifically, in this embodiment, when the ground nail is driven into the base cement blanket 11, an appropriate amount of cement slurry is pre-injected into the grouting channel 5, and at this time, the plugging plate 8 closes the grouting hole 7 to prevent the cement slurry from flowing out. When the cover layer cement blanket 12 is laid and moistened with water, the weight of the cover layer cement blanket 12 presses the ground nail, causing one side of its spike structure to produce an upward displacement, so that a gap can be formed between the anchor body 1 and the ditch foundation soil layer; then, the cover layer cement blanket 12 is pulled to drive the support member 3 from the first form to the second form, and at this time, the cover layer cement blanket 12 quickly hits the base layer cement blanket 11, squeezing air into the grouting channel 5, so that the internal pressure of the grouting channel 5 increases, and then the plugging plate 8 is released from the limit groove 6 under the action of pressure, and the cement slurry flows out of the grouting hole 7 to fill the gap between the anchor body 1 and the ditch foundation soil layer; In this embodiment, the grouting channel 5 is used to inject cement slurry into the ditch foundation soil layer, which can enhance the bonding strength between the ground nail and the ditch foundation and improve the effect of the ground nail anchoring the base cement blanket 11. Furthermore, in this embodiment, after the cement slurry is injected, an expanded structure can be formed on one side of the spike structure of the anchor body 1, which further improves the pull-out resistance of the ground nail, making the base cement blanket 11 more firmly fixed on the ditch foundation, and enhancing the stability and durability of the ditch structure. Furthermore, in this embodiment, the cover layer cement blanket 12 is used to quickly hit the base cement blanket 11, and the air is squeezed into the grouting channel 5 to push the sealing plate 8 out of the grouting hole to open the grouting hole. No additional construction equipment is required to assist in the operation, which simplifies the construction process and improves construction efficiency. Furthermore, in the present embodiment, after the cover layer cement blanket 12 is attached to the base layer cement blanket 11, the cement slurry flows out from the slurry outlet hole 7 to fill the gap between the anchor body 1 and the ditch foundation soil layer. At this time, the anchor body 1 is stably fixed in the soil layer of the foundation, avoiding the anchor body 1 disturbing the soil layer after grouting, causing excessive soil debris to mix into the cement slurry, affecting the curing quality of the cement slurry.

[0047] As a preferred embodiment, on the basis of the above-mentioned manner, further, the outer surface of the bolt body 1 is provided with a rough surface structure. By adopting this structural setting, the bonding stability between the cement slurry and the bolt body 1 can be improved, thereby further enhancing the anchoring effect of the ground nail. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A construction method for ditch seepage prevention in the transformation of high-standard farmland, characterized in that, The steps include: S1. Measurement and layout: According to the design drawings, the position and size of the ditch are measured and laid out, and the structural edge of the ditch is marked with lime. S2. Construction area clearing: Clear weeds, garbage, stones and other debris in the ditch construction area to ensure that the construction area is clean and tidy, laying the foundation for subsequent construction; S3. Ditch excavation: The trench is excavated in longitudinal sections and horizontal layers. During the excavation process, the slope and direction of the trench are maintained to ensure that the trench excavation meets the design requirements. After the excavation is completed, the bottom and side walls of the trench are leveled to remove sharp soil and stones to prevent damage to the cement blanket to be laid later. S4. Laying of base cement blanket: according to the shape and size of the ditch, cut the base cement blanket of matching size, and spread it along the bottom and both sides of the ditch in sequence, ensuring that the base cement blanket fits tightly to the ditch excavation surface without leaving any gaps; while laying the base cement blanket, install ground nails at intervals in the corresponding slope area of the ditch to fix the base cement blanket to prevent it from shifting or sliding; S5. Laying of the cover layer cement blanket: After the base layer cement blanket is laid, the cover layer cement blanket is laid; the cover layer cement blanket is set in the slope area of the ditch, and the cover layer cement blanket is used to cover the ground nails set on the surface of the base layer cement; S6. Watering and curing: Water the laid base cement blanket and cover cement blanket to hydrate and solidify the cement in the blanket. After watering, wait for the blanket to solidify. Avoid people stepping on it or heavy objects pressing on it to avoid damaging the solidified layer. S7. Inspection and acceptance: After the base cement blanket and the cover cement blanket are completely solidified, conduct a comprehensive inspection and acceptance; focus on checking the solidification status of the base and cover cement blankets, and whether there are cracks or leakage risk points. If problems are found during the inspection, repair them in time to ensure the anti-seepage effect and service life of the ditch.

2. The ditch seepage prevention construction method for high-standard farmland transformation according to claim 1, characterized in that, The base cement blanket is constructed by horizontal paving; the overlapping edge line of the base cement blanket is set perpendicular to the central axis of the ditch, and the upstream base cement blanket is pressed on top of the downstream base cement blanket.

3. The ditch seepage prevention construction method for high-standard farmland renovation according to claim 2, characterized in that, The overlapping edge lines of the cover layer cement blanket and the overlapping edge lines of the base layer cement blanket are staggered.

4. The ditch seepage prevention construction method for high-standard farmland transformation according to claim 3, characterized in that A drainage ditch is arranged at the junction of the ditch bottom and the slope, and is used to discharge the accumulated water gathered at the bottom of the ditch during the sprinkling and curing operation of the base layer and the cover layer cement blanket.

5. The ditch seepage prevention construction method for high-standard farmland transformation according to claim 4, characterized in that, An anchoring groove is also arranged at the top of the ditch, and the edge parts of the base layer cement blanket and the cover layer cement blanket are buried in the anchoring groove.

6. The ditch seepage prevention construction method for high-standard farmland renovation according to any one of claims 1-5, characterized in that, A steel wire mesh is also arranged between the cover layer cement blanket and the base layer cement blanket.

7. The ditch seepage prevention construction method for high-standard farmland renovation according to claim 6, characterized in that, The ground nail comprises an anchor rod body, one end of the anchor rod body is a spike structure, and the other end is connected with a baffle, the baffle is arranged around the cross-sectional edge of the anchor rod body, and the baffle is used to fit the base cement blanket; The blocking piece is also provided with a support member, the support member and the blocking piece are rotatably connected and matched, and the end of the support member is also provided with a hanging tooth; the support member has a first shape and a second shape; In the first form, the central axis of the support member is parallel to the central axis of the ground nail; in the second form, the support member is in contact with the base cement blanket; When laying the cover layer cement blanket, first adjust the support member to the first form. After the cover layer cement blanket is unfolded along the ditch slope, the hanging teeth penetrate into the interior of the cover layer cement blanket to realize the connection between the cover layer cement blanket and the ground nail. And at this time, a fitting gap is formed between the base layer cement blanket and the cover layer cement blanket. When performing the watering and curing operation, inject water into the fitting gap between the base layer cement blanket and the cover layer cement blanket. After wetting the opposite surfaces of the base layer cement blanket and the cover layer cement blanket, apply a tensile force to the cover layer cement blanket to cause it to displace upward along the slope. During this process, the cover layer cement blanket drives the support member to rotate toward the top side of the ditch slope and finally forms the second form.

8. The ditch seepage prevention construction method for high-standard farmland transformation according to claim 7, characterized in that, The support member is arranged in a sheet-like structure.

9. The ditch seepage prevention construction method for high-standard farmland transformation according to claim 8, characterized in that, A grouting channel is arranged inside the anchor rod body. A limiting groove is arranged on one side of the anchor rod body near the spike structure. A slurry outlet hole communicated with the grouting channel is arranged at the bottom of the limiting groove. A plugging plate is also clamped in the limiting groove. The connection between the plugging plate and the anchor rod body is a separable connection fit. When the support member changes from the first form to the second form, the cover layer cement pushes air into the grouting channel, increasing the internal pressure, and then the plugging plate can be disengaged from the limiting groove.

10. The ditch seepage prevention construction method for high-standard farmland transformation according to claim 9, characterized in that, The outer surface of the anchor rod body is arranged in a rough surface structure.

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