Ecological protection construction method for river drainage slope bank in saline-alkali environment

Abstract

The invention discloses an ecological protection construction method for a drainage bank in a saline-alkali environment, and relates to the technical field of water conservancy construction, the ecological protection construction method has the advantage of reducing water and soil loss of the drainage bank in the saline-alkali environment, and the technical scheme is characterized by comprising the following steps: S1, preparation before construction; s2, side slope trimming; s3, laying construction of a coconut shred blanket is conducted, specifically, the coconut shred blanket is cut according to the length and width of the side slope, and a certain lap joint length of 20-30 cm should be reserved during cutting; a coconut shred blanket is laid from top to bottom from the top of the riverway slope, the coconut shred blanket is spread and then flatly laid on the riverway slope, and in the laying process, the direction of the coconut shred blanket is kept consistent; the coconut shred blankets are fixed to the river slope through U-shaped nails and arranged in a quincunx shape, the number of the U-shaped nails is increased at the top, the bottom and the lap joint positions of the river slope, and the lap joint positions between the adjacent coconut shred blankets are sewn through suture lines; and S4, vegetation sowing.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy construction, and specifically provides an ecological protection construction method for the river slope bank in a saline-alkali environment. Background Art

[0002] The formation of saline-alkali land is mainly caused by factors such as high groundwater level, large evaporation volume, and salt accumulation. These factors make the soil structure become loose and vulnerable to erosion by water flow and wind, resulting in soil loss.

[0003] The erosion effect of the saline-alkali environment on the river slope bank is significant. Without ecological protection, the slope bank is easily eroded, leading to soil and water loss, and further affecting the stability of the river channel.

[0004] Therefore, the applicant has developed a new technical solution in the actual production process to solve the above technical problems. Summary of the Invention

[0005] Aiming at the above existing technical deficiencies, the purpose of the present invention is to provide an ecological protection construction method for the river slope bank in a saline-alkali environment, which has the advantage of reducing soil and water loss of the river slope bank in a saline-alkali environment.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides an ecological protection construction method for the river slope bank in a saline-alkali environment, including the following steps: S1: Preparation before construction 1), Coconut coir blanket and supporting materials: According to the design requirements, purchase coconut coir blankets with qualified quality and appropriate specifications. At the same time, prepare U-shaped nails and suture fixing materials. After the above materials enter the site, conduct sampling inspection, and they can be used for construction only after passing the inspection; 2), Prepare auxiliary equipment required for laying coconut coir blankets: Cutting tools, U-shaped nail driving tools; S2: Slope trimming After the earthwork excavation is completed, manually trim the river slope to make the slope meet the design slope and flatness requirements. For parts with local unevenness or slopes not meeting the requirements, conduct slope cutting or backfilling treatment; S3: Construction of laying coconut coir blankets 1), Preparation before laying Re-check and clean the trimmed river slope; Cut the coconut coir blanket according to the length and width of the slope. When cutting, a certain lap length should be reserved, which is 20 - 30 cm; 2), Laying method Starting from the top of the river channel slope, lay the coir fiber blanket from top to bottom. After unfolding the coir fiber blanket, lay it flat on the river channel slope to ensure that the blanket surface is flat and without wrinkles. During the laying process, pay attention to keeping the direction of the coir fiber blanket consistent; 3), Fix the coir fiber blanket on the river channel slope with U-shaped nails. The spacing of the U-shaped nails is controlled within 50 ± 5 cm and arranged in a plum blossom shape. At the top, bottom, and overlapping parts of the river channel slope, increase the number of U-shaped nails. For the overlapping parts between adjacent coir fiber blankets, use sewing threads for stitching; S4: Vegetation seeding After the coir fiber blanket is laid, carry out the vegetation seeding work. According to the local climate conditions and soil characteristics, select suitable grass seeds or plant seeds, and use manual sowing or mechanical sowing methods to evenly spread the seeds on the surface of the coir fiber blanket. After sowing, cover a thin layer of soil and compact it.

[0007] By adopting the above technical solutions, the preparatory work before construction reduces the subsequent laying work and ensures the smooth laying of the coir fiber blanket in the future. Laying the coir fiber blanket in a saline-alkali environment improves the soil structure: the coir fiber blanket provides organic matter for the saline-alkali land, improving the physical and chemical properties of the soil. The water retention property of the coconut fibers in the coir fiber blanket enables the soil to maintain an appropriate humidity, thereby improving the plant growth environment. The structure of the coir fiber blanket effectively fixes the soil and reduces soil erosion of the river slope bank caused by rainwater scouring.

[0008] Preferably, in the above S3: Laying construction of the coir fiber blanket, 1), Replace the preparation before laying with purchasing the coir fiber blanket according to the length and width of the slope, so that the width of the coir fiber blanket is 25 ± 8 cm wider than the slope width; 2), Replace the laying method with starting from one side of the river channel slope, put the two ends of the width of the coir fiber blanket from the top of the river channel slope to the bottom of the slope, and gradually unfold the coir fiber blanket along the length direction of the river channel slope. At this time, the laid width of the coir fiber blanket fills the width direction of the river channel slope, and the overlapping length between adjacent coir fiber blankets is 20 - 30 cm.

[0009] Preferably, in step S3 above, purchase the coir fiber blanket so that the width of the two coir fiber blankets is 60 ± 10 cm wider than the slope width. 2), Replace the laying method with starting from one side of the river channel slope, put the two ends of the width of one coir fiber blanket from the top of the river channel slope to the slope surface, and put the two ends of the width of the other coir fiber blanket from the lower end of the previous coir fiber blanket to the bottom of the river channel slope. The overlapping length between the upper and lower adjacent coir fiber blankets is 20 - 30 cm, and the overlapping length between the left and right adjacent coir fiber blankets is 20 - 30 cm.

[0010] Preferably, an installation groove is formed along the length direction of the river channel slope on the river channel slope. The upper end in the width direction of the lower coconut fiber blanket enters the installation groove, and the lower end in the width direction extends to the bottom of the river channel slope. The installation groove is backfilled with soil to fix the upper end of the lower coconut fiber blanket. The upper end in the width direction of the upper coconut fiber blanket is located at the top of the river channel slope, and the lower end in the width direction is located on the lower coconut fiber blanket with an overlapping length of 20 - 30 cm. During construction, the lower coconut fiber blanket is constructed first, and then the upper coconut fiber blanket is constructed.

[0011] Preferably, the U-shaped nail driving tooling includes a box body with rollers installed at the bottom. The box openings of the box body are distributed upward. An installation strip with a rectangular longitudinal section is arranged at the inner bottom of the box body along the length direction of the box body. After the U-shaped nail is inserted into the installation strip, the horizontal side of the U-shaped nail is located on the upper end surface of the installation strip and abuts against the upper end surface of the installation strip. There is a gap B between the vertical side of the U-shaped nail and the bottom of the box body. One end of the installation strip is fixedly connected to the side wall of the box body, and there is a gap A with the width of a U-shaped nail between the other end and the side wall of the box body; An ejection hole for the U-shaped nail to move out is formed at the bottom of the box body corresponding to the gap A. A driving part is arranged on the box body to enable the U-shaped nails on the installation strip to be ejected from the ejection hole one by one and inserted into the river channel slope.

[0012] Preferably, the driving part includes a chute formed on the upper end surface of the installation strip and extending out of one end of the installation strip near the gap A. A slider is slidably connected in the chute. The upper end surface of the slider is flush with the upper end surface of the installation strip. A first compression spring is arranged on the groove wall of the chute. One end of the first compression spring away from the groove wall of the chute is fixedly connected to the slider. The first compression spring presses the slider against the inner side wall of the box body. An inclined surface is arranged on the upper end surface of the slider where it moves out of the installation strip. The lower end of the inclined surface abuts against the inner side wall of the box body, and the higher end of the inclined surface extends to one side of the installation strip; Guide rods are arranged on both sides of the installation strip on the opposite inner walls of the box body. A U-shaped push plate is slidably connected to the installation strip on one side of each U-shaped nail. The two vertical sides of the push plate are respectively slidably connected to the two guide rods. A second compression spring is sleeved on each guide rod. The second compression spring is located on the side of the push plate away from the U-shaped nail. The two ends of the second compression spring are respectively fixedly connected to the inner wall of the box body and the side wall of the push plate. The second compression spring generates an extrusion force on each U-shaped nail, so that the U-shaped nail farthest from the push plate abuts against the side wall of the box body; A power part is arranged on the box body to push the U-shaped nail farthest from the push plate and abutting against the side wall of the box body to move downward and insert into the river channel slope.

[0013] Preferably, the power member includes two oppositely distributed mounting blocks provided on the outer wall of the box body. Each of the mounting blocks is provided with a vertical rod extending upward. The two vertical rods are connected by a foot pedal. The foot pedal is slidably connected to the two vertical rods. The lower end of the foot pedal is provided with an insertion plate inserted into the box body. The insertion plate is directly above a U-shaped nail that is the farthest from the push plate and abuts against the side wall of the box body. A third compression spring is sleeved outside each vertical rod. The two ends of the third compression spring are respectively fixedly connected to the lower end of the foot pedal and the upper end of the mounting block. When the third compression spring is in a natural state, the insertion plate is directly above the U-shaped nail; The upper ends of the two vertical rods are connected by a U-shaped handle.

[0014] Preferably, a horizontally distributed closing plate is slidably connected to the box wall of the box body. One end of the closing plate extends to the plate surface of the insertion plate, and the other end extends out of the box body by a part. The lower end surface of the closing plate is distributed close to the upper end surfaces of the U-shaped nails.

[0015] Preferably, a driving groove distributed along the length direction of the closing plate is formed on the lower end surface of the closing plate. The driving groove extends out of one side surface of the closing plate on the side away from the insertion plate. The upper end of the push plate is provided with a driving block slidable in the driving groove. One side wall of the driving groove is distributed close to the insertion plate.

[0016] Preferably, a horizontally extending limiting rod is provided on the side of the push plate facing away from the U-shaped nail. An oval plate is rotatably connected to the end of the limiting rod away from the push plate. A limiting hole for the oval plate to move out of the box body is formed on the box body. A regulating rod is provided at the lower part of the middle of the side surface of the oval plate facing away from the limiting rod. The length of the regulating rod is distributed along the length direction of the limiting rod.

[0017] The beneficial effects of the present invention are as follows: The work prepared before construction reduces the subsequent laying work and ensures the smooth laying of the coconut fiber blanket in the follow-up. Laying the coconut fiber blanket in a saline-alkali environment improves the soil structure: The coconut fiber blanket provides organic matter for the saline-alkali land, improves the physical and chemical properties of the soil. The water retention property of the coconut fibers in the coconut fiber blanket enables the soil to maintain an appropriate humidity, thereby improving the plant growth environment. The structure of the coconut fiber blanket effectively fixes the soil and reduces the soil erosion of the drainage river slope caused by rainwater scouring. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1Schematic diagram of the structure of this embodiment; Figure 2 Schematic diagram of the structure of this embodiment for showing the installation groove; Figure 3 Schematic diagram of the structure of this embodiment for showing the tooling; Figure 4 Schematic diagram of the structure of this embodiment for showing the sliding groove; Figure 5 is Figure 4 Enlarged structural schematic diagram of part C in Figure 6 Schematic diagram of the structure of this embodiment for showing the state after hiding the closing plate; Figure 7 Schematic diagram of the structure of this embodiment for showing the limiting rod; Figure 8 Schematic diagram of the structure of this embodiment for showing the inclined surface; Figure 9 Schematic diagram of the structure of this embodiment for showing the roller.

[0020] Explanation of reference numerals: In the figure: 1, river channel slope; 11, installation groove; 12, coir mat; 2, U-shaped nail; 3, roller; 31, box body; 32, installation strip; 321, gap B; 322, gap A; 323, sliding groove; 324, slider; 325, first compression spring; 326, inclined surface; 327, push plate; 33, removal hole; 34, guide rod; 341, second compression spring; 35, installation block; 351, vertical rod; 352, foot pedal; 353, insertion plate; 354, third compression spring; 355, handle; 36, closing plate; 361, driving groove; 362, driving block; 37, limiting rod; 371, oval plate; 372, limiting hole; 373, adjusting rod. Detailed implementation manners

[0021] [[ID=�6]]Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] An ecological protection construction method for a river slope in a saline-alkali environment, as Figure 1 includes the following steps: S1: Preparation before construction 1), Coconut fiber blanket and supporting materials: According to the design requirements, purchase coconut fiber blankets with qualified quality and appropriate specifications. At the same time, prepare U-shaped nails and suture fixing materials. After the above materials enter the site, conduct sampling inspections, and they can be used for construction only after passing the inspections; 2), Prepare auxiliary equipment required for laying coconut fiber blankets: cutting tools, U-shaped nail driving tooling; S2: Slope trimming After the earth excavation is completed, manually trim the river slope so that the slope meets the requirements of the design gradient and flatness. For parts with local unevenness or gradients not meeting the requirements, carry out slope cutting or backfilling treatment to facilitate the close fit of the coconut fiber blanket to the slope; S3: Construction of laying coconut fiber blankets 1), Preparation before laying Re-check and clean the trimmed river slope again; according to the length and width of the slope, cut the coconut fiber blanket, and a certain lap length should be reserved during cutting, which is 20 - 30 cm, generally 30 cm, to ensure that the coconut fiber blankets are closely connected after laying; 2), Laying method Start laying the coconut fiber blanket from the top of the river slope, from top to bottom. After unfolding the coconut fiber blanket, lay it flat on the river slope, ensuring that the blanket surface is flat and without wrinkles. During the laying process, pay attention to keeping the direction of the coconut fiber blanket consistent to reduce twisting and misalignment; 3), Fix the coconut fiber blanket on the river slope with U-shaped nails. The spacing of the U-shaped nails is controlled within 50 ± 5 cm. Preferably, the spacing of the U-shaped nails is controlled at 50 cm, arranged in a plum blossom pattern. At the top, bottom, and lap joints of the river slope, increase the number of U-shaped nails. For the lap joints between adjacent coconut fiber blankets, use sutures for stitching. The stitching should be tight and firm to reduce the separation of the coconut fiber blankets; S4: Vegetation seeding After the coconut fiber blanket is laid, carry out the vegetation seeding work. According to the local climate conditions and soil characteristics, select suitable grass seeds or plant seeds, and use manual sowing or mechanical sowing methods to evenly spread the seeds on the surface of the coconut fiber blanket, generally 20 g / m². After sowing, cover a thin layer of soil and compact it to facilitate the full contact of the seeds with the soil and is conducive to the germination and growth of the seeds.

[0023] The work of preparation before construction reduces the subsequent laying work and ensures the smooth laying of the subsequent coconut fiber blankets. Laying coconut fiber blankets in a saline-alkali environment improves the soil structure: The coconut fiber blanket provides organic matter for the saline-alkali land, improving the physical and chemical properties of the soil. The water retention property of the coconut fibers in the coconut fiber blanket enables the soil to maintain an appropriate humidity, thereby improving the plant growth environment. The structure of the coconut fiber blanket effectively fixes the soil and reduces soil erosion caused by rainwater scouring on the river slope bank.

[0024] The above S3: Preparation before laying the coconut fiber blanket is replaced with: According to the length and width of the slope, purchase the coconut fiber blanket so that the width of the coconut fiber blanket is 25 ± 8 cm wider than the slope width. The extra coconut fiber blanket in width is lapped with the ground and then buried with soil to stabilize the position of the coconut fiber blanket. 2) Laying method is replaced with: Start from one side of the river channel slope. Place the two ends of the width of the coconut fiber blanket from the top to the bottom of the river channel slope. Gradually unfold the coconut fiber blanket along the length direction of the river channel slope. At this time, the laid width of the coconut fiber blanket fills the width direction of the river channel slope. The lap length between two adjacent coconut fiber blankets is 20 - 30 cm. The two adjacent coconut fiber blankets in lap are the two adjacent coconut fiber blankets along the length direction of the river channel slope. The purpose of this design is that there is no need to cut the coconut fiber blanket as before, which requires a lot of manpower and material resources. Only need to place the width direction of the coconut fiber blanket along the width direction of the river channel slope, then gradually unfold the coconut fiber blanket, and then fix it on the river channel slope with U-shaped nails.

[0025] Such as Figure 2 , if the width of the coconut fiber blanket 12 does not reach the width of the river channel slope 1, the following method is adopted: Purchase the coconut fiber blanket 12 in the above step S3 so that the sum of the widths of the two coconut fiber blankets 12 is 60 ± 10 cm wider than the slope width. 2) Laying method is replaced with: Start from one side of the river channel slope 1. Place the two ends of the width of one coconut fiber blanket 12 from the top of the river channel slope 1 to the slope surface, which is called the upper coconut fiber blanket 12. Place the two ends of the width of the other coconut fiber blanket 12 from the lower end of the previous coconut fiber blanket 12 to the bottom of the river channel slope 1, which is called the lower coconut fiber blanket 12. The lap length between the upper and lower adjacent coconut fiber blankets 12 is 20 - 30 cm. The upper end of the upper coconut fiber blanket 12 is lapped with the ground by 25 ± 8 cm and then buried with soil. The lap length between the left and right adjacent coconut fiber blankets 12 is 20 - 30 cm.

[0026] Such as Figure 2 , an installation groove 11 is provided along the length direction of the river channel slope 1 on the river channel slope 1. The installation groove 11 is provided below the lower end of the upper coconut fiber blanket 12. The upper end of the width direction of the lower coconut fiber blanket 12 enters the installation groove 11, and the lower end of the width direction extends to the bottom of the river channel slope 1. Backfill the installation groove 11 with soil to fix the upper end of the lower coconut fiber blanket 12. The upper end of the width direction of the upper coconut fiber blanket 12 is located at the top of the river channel slope 1, and the lower end of the width direction is located on the lower coconut fiber blanket 12 with a lap length of 20 - 30 cm. During construction, first construct the lower coconut fiber blanket 12 and fix it with U-shaped nails 2, and then construct the upper coconut fiber blanket 12 and fix it with U-shaped nails 2.

[0027] Such as Figure 2The setting of the installation groove 11 reduces the slippage and breakage of the coconut fiber blanket 12 below, and when there are local unevenness or slopes that do not meet the requirements on the river slope 1, the soil can be cut into the installation groove 11.

[0028] like Figure 3 and Figure 4 and Figure 5 and Figure 9 In actual construction, a U-shaped nail 2 is manually inserted into the coconut fiber carpet 12 and the river slope 1 one by one by hand, and then compacted with the feet. The construction efficiency is low and manual bending is required. Therefore, a U-shaped nail 2 is designed. The U-shaped nail 2 is driven into the tool. The tool comprises a box body 31 with a roller 3 at the bottom. The box mouth of the box body 31 is distributed upward. The bottom of the box body 31 is provided with a mounting strip 32 distributed along the length direction of the box body 31 and having a rectangular longitudinal section. After the U-shaped nail 2 is inserted into the mounting strip 32, the water of the U-shaped nail 2 is The flat edge is located on the upper end surface of the mounting strip 32 and contacts the upper end surface of the mounting strip 32. A gap B321 is present between the vertical edge of the U-shaped nail 2 and the bottom of the box body 31. The design of the gap B321 allows U-shaped nails 2 of different heights to be installed on the mounting strip 32. The vertical edge of the U-shaped nail 2 contacts the side wall of the mounting strip 32, allowing the U-shaped nail 2 to slide on the mounting strip 32. One end of the mounting strip 32 is fixedly connected to the side wall of the box body 31, and a gap A322 the width of the U-shaped nail 2 is present between the other end and the side wall of the box body 31. like Figure 3 and Figure 4 and Figure 5 and Figure 9 A removal hole 33 for removing a U-shaped nail 2 is opened at the bottom of the box body 31 at the position corresponding to the gap A322, and a driving member is provided on the box body 31 to enable the U-shaped nails 2 on the mounting strip 32 to be removed one by one from the removal hole 33 and inserted into the river slope 1.

[0029] like Figure 3 and Figure 4 and Figure 5The driving member includes a slide groove 323 formed on the upper end surface of the mounting strip 32 and one end extending out of the mounting strip 32 near the gap A322. The notch of the slide groove 323 is distributed upward. A slider 324 is slidably connected in the slide groove 323. The upper end surface of the slider 324 is flush with the upper end surface of the mounting strip 32. A compression spring 325 is provided on the groove wall of the slide groove 323. The end of the compression spring 325 away from the groove wall of the slide groove 323 is fixedly connected to the slider 324. The compression spring 325 is fixedly connected to the slider 324 at its 5 so that the slider 324 is pressed against the inner side wall of the box body 31. The slider 324 is provided with an inclined surface 326 on the upper end surface of the slider 324 that is removed from the mounting bar 32. The lower end of the inclined surface 326 contacts the inner side wall of the box body 31, and the higher end of the inclined surface 326 extends to a side wall of the mounting bar 32. As a result, a U-shaped nail 2 that has slid out of the mounting bar 32 is located directly above the inclined surface 326, while the adjacent U-shaped nail 2 is still located on the upper end surface of the mounting bar 32. like Figure 6 and Figure 7 and Figure 8 When the cam 32 is in the unlock state, the cam 328 is in the unlock state, and the cam 329 is in the unlock state, so that the cam 329 has an unlock state, and the cam 329 has an unlock state. like Figure 6 and Figure 7 and Figure 8 The box body 31 is provided with a power member that pushes a U-shaped nail 2 that is farthest from the push plate 327 and in conflict with the side wall of the box body 31 to move downward and insert into the river slope 1.

[0030] like Figure 6 and Figure 7 and Figure 8, The power component includes two oppositely distributed mounting blocks 35 provided on the outer wall of the box body 31. Each mounting block 35 is provided with a vertical rod 351 extending upward. The two vertical rods 351 are connected by a foot pedal 352. The foot pedal 352 is slidably connected to the two vertical rods 351. The lower end of the foot pedal 352 is provided with an insertion plate 353 inserted into the box body 31. The insertion plate 353 is located directly above one U-shaped nail 2 that is the farthest from the push plate 327 and abuts against the side wall of the box body 31. A third compression spring 354 is sleeved outside each vertical rod 351. The two ends of the third compression spring 354 are respectively fixedly connected to the lower end of the foot pedal 352 and the upper end of the mounting block 35. When the third compression spring 354 is in the natural state, the insertion plate 353 is located directly above the U-shaped nail 2, and the thickness of the insertion plate 353 is less than or equal to the thickness of one U-shaped nail 2; As Figure 6 and Figure 7 and Figure 8 , The upper ends of the two vertical rods 351 are connected by a U-shaped handle 355. And for the structural stability, several reinforcing rods are provided between the two vertical rods 351 above the foot pedal 352.

[0031] As Figure 3 and Figure 4 and Figure 5 , A horizontally distributed closing plate 36 is slidably connected to the box wall of the box body 31. One end of the closing plate 36 extends to the plate surface of the insertion plate 353, and the other end extends out of the box body 31 by a part. At this time, one side surface of the insertion plate 353 is in contact with the side wall of the box body 31. The lower end surface of the closing plate 36 is distributed close to the upper end surfaces of the U-shaped nails 2 to limit the upper end surfaces of the U-shaped nails 2, so that each U-shaped nail 2 can only move along the length direction of the mounting strip 32 under the action of the push plate 327.

[0032] As Figure 3 and Figure 4 and Figure 5 and Figure 6, to facilitate the backhaul of the push plate 327 when the closing plate 36 is opened, thereby facilitating the installation of new U-shaped nails 2 onto the installation strip 32. Therefore, a driving groove 361 distributed along the length direction of the closing plate 36 is provided on the lower end surface of the closing plate 36. The driving groove 361 extends out of one side surface of the closing plate 36 on the side away from the insertion plate 353. A driving block 362 that slides in the driving groove 361 is provided at the upper end of the push plate 327. One side wall of the driving groove 361 is distributed close to the insertion plate 353. When the closing plate 36 closes the opening of the box body 31, one end of the closing plate 36 extends out of the outer wall of the box body 31, facilitating the operator to pull the closing plate 36. When the closing plate 36 opens the opening of the box body 31, the side wall of the driving groove 361 close to the insertion plate 353 gradually approaches the driving block 362. As the opening of the box body 31 is opened, until the side wall of the driving groove 361 close to the insertion plate 353 abuts against the driving block 362, thereby driving the driving block 362 to move together. At this time, the push plate 327 is also driven to move together, so that when the closing plate 36 opens the box of the box body 31, the push plate 327 is also pushed away from the insertion plate 353, causing the second compression spring 341 to be gradually compressed, facilitating the installation of more U-shaped nails 2.

[0033] Such as Figure 3 and Figure 7When the closing plate 36 opens the box opening of the box body 31 to the required position, it is necessary to limit the position of the push plate 327 to facilitate the installation of the U-shaped nail 2. Therefore, a horizontally extending limiting rod 37 is provided on the side of the push plate 327 facing away from the U-shaped nail 2. One end of the limiting rod 37 away from the push plate 327 is rotatably connected to an oval plate 371. A limiting hole 372 for the oval plate 371 to move out of the box body 31 is opened on the box body 31. A regulating rod 373 is provided at the lower middle of the side of the oval plate 371 facing away from the limiting rod 37. The length of the regulating rod 373 is distributed along the length direction of the limiting rod 37. At this time, the regulating rod 373 is arranged at the lower end of the oval plate 371, increasing the weight of the oval plate 371 and reducing the shaking of the oval plate 371 when moving along with the push plate 327. And when the oval plate 371 approaches the limiting hole 372, one end of the regulating rod 373 has extended out of the outer wall of the box body 31, facilitating the operator to rotate the oval plate 371 through the regulating rod 373 to pull the oval plate 371 out of the box body 31. At this time, the size of the limiting hole 372 is larger than the size of the oval plate 371, facilitating the removal of the oval plate 371. Then rotate the oval plate 371 so that the two ends with the larger diameter of the oval plate 371 rotate to the horizontal position and then contact the outer wall of the box body 31. At this time, release the closing plate 36 and the regulating rod 373, so that the position of the push plate 327 is fixed and will not slide on the mounting strip 32, facilitating the installation of the U-shaped nail 2. When the installation of the U-shaped nail 2 is completed, rotate the oval plate 371 through the regulating rod 373 so that the two ends with the larger diameter of the oval plate 371 are in the vertical position opposite to the limiting hole 372, facilitating the elastic restoring force of the compression spring two 341 to drive the push plate 327 to squeeze the U-shaped nail 2, so that the oval plate 371 has a displacement into the limiting hole 372, and finally push the closing plate 36 in the direction of the plug plate 353 so that the closing plate 36 closes the box opening of the box body 31. At this time, an elastic ring tightly connected to the box wall of the box body 31 is sleeved on the outer wall of the end of the closing plate 36 away from the plug plate 353. The setting of the elastic ring increases the connection between the closing plate 36 and the box wall of the box body 31, so that an external force is required to open the box opening of the box body 31.

[0034] Such as Figures 3 to 9 , the working principle of the tooling for driving the U-shaped nail 2: Step 1: Open the closing plate 36 and make the closing plate 36 drive the push plate 327 to move away from the plug board 353 until the elliptical plate 371 moves out of the outer wall of the box body 31. Then rotate the elliptical plate 371 so that the elliptical plate 371 is clamped with the outer wall of the box body 31, which restricts the position of the push plate 327. At this time, install the U-shaped nails 2 onto the mounting strip 32 one by one. After the installation of the U-shaped nails 2 is completed, push the closing plate 36 to close the box opening of the box body 31. Then rotate the elliptical plate 371 so that the elliptical plate 371 enters the limit hole 372 under the action of the compression spring two 341, which facilitates the push plate 327 to generate a squeezing force on each U-shaped nail 2, making the U-shaped nail 2 farthest from the push plate 327 abut against the side wall of the box body 31; Step 2: The operator holds the handle 355 with the hand and steps on the foot pedal 352 to provide a downward force to the plug board 353. At this time, the compression spring three 354 is gradually compressed and has an elastic restoring force, which facilitates the plug board 353 to move directly above the U-shaped nail 2 and generate a downward squeezing force on the U-shaped nail 2. The horizontal part of the U-shaped nail 2 generates a squeezing force on the inclined surface 326, causing the slider 324 to slide into the chute 323 and compress the compression spring one 325 to generate an elastic restoring force. During the separation process of the U-shaped nail 2 and the slider 324, the lower end of the U-shaped nail 2 gradually moves out of the removal hole 33 and then inserts into the river channel slope 1. As the plug board 353 gradually moves downward, the more the U-shaped nail 2 inserts, until the lower end of the plug board 353 moves out of the removal hole 33, while the upper end of the plug board 353 is still higher than the upper end of the mounting strip 32, pressing the horizontal side of the U-shaped nail 2 tightly against the river channel slope 1; Step 3: After driving a U-shaped nail 2 into the river channel slope 1, lift the foot off the foot pedal 352, so that the compression spring three 354 drives the foot pedal 352 to move upward, driving the plug board 353 to move above the U-shaped nail 2 again. When the plug board 353 is separated from the slider 324, the compression spring one 325 drives the slider 324 to abut against the box wall of the box body 31 again, and the compression spring two 341 drives the push plate 327 to move a distance of one U-shaped nail 2 towards the plug board 353, thereby abutting the next U-shaped nail 2 against the box wall of the box body 31.

[0035] Repeat the above steps. People push the box body 31 to move on the river channel slope 1 through the handle 355. When the box body 31 moves to a suitable position, preferably push the box body 31 along the length direction of the river channel 1, driving the U-shaped nails 2 into the river channel slope 1 one by one, which is time-saving and labor-saving.

[0036] Both ends of the first compression spring 325, the second compression spring 341, and the third compression spring 354 in the above structure are provided with connection blocks. The connection blocks are detachably connected to the slider 324 and the chute 323 by bolts respectively, the connection blocks are detachably connected to the foot pedal 352 and the mounting block 35 by bolts respectively, and the connection blocks are detachably connected to the inner wall of the box body 31 and the push plate 327 by bolts respectively. At this time, the first compression spring 325, the second compression spring 341, and the third compression spring 354 are detachably connected, which is convenient for replacing the first compression spring 325, the second compression spring 341, and the third compression spring 354.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. An ecological protection construction method for a drainage river slope in a saline-alkali environment, characterized in that, Including the following steps: S1: Preparation before construction 1), Coir fiber blanket and supporting materials: According to the design requirements, purchase coir fiber blankets with qualified quality and appropriate specifications. At the same time, prepare fixing materials such as U-shaped nails and sewing threads. After the above materials enter the site, conduct sampling inspection, and they can be used for construction only after passing the inspection; 2), Prepare auxiliary equipment required for coir fiber blanket laying: Cutting tools, U-shaped nail driving tooling; S2: Slope trimming After the earthwork excavation is completed, manually trim the river channel slope to make the slope meet the design slope and flatness requirements. For parts with local unevenness or slopes not meeting the requirements, conduct slope cutting or backfilling treatment; S3: Coir fiber blanket laying construction 1), Preparation before laying Re-check and clean the trimmed river channel slope; Cut the coir fiber blanket according to the length and width of the slope. When cutting, a certain overlap length should be reserved, which is 20 - 30 cm; 2), Laying method Start from the top of the river channel slope and lay the coir fiber blanket from top to bottom. After unfolding the coir fiber blanket, lay it flat on the river channel slope, with the blanket surface flat and without wrinkles. During the laying process, pay attention to keeping the direction of the coir fiber blanket consistent; 3), Fix the coir fiber blanket on the river channel slope with U-shaped nails. The spacing of the U-shaped nails is controlled within 50 ± 5 cm, arranged in a plum blossom shape. At the top, bottom, and overlap parts of the river channel slope, increase the number of U-shaped nails. For the overlap parts between adjacent coir fiber blankets, use sewing threads for sewing; S4: Vegetation seeding After the coir fiber blanket laying is completed, carry out vegetation seeding work. According to the local climate conditions and soil characteristics, select suitable grass seeds or plant seeds, and use the method of manual sowing or mechanical sowing to evenly spread the seeds on the surface of the coir fiber blanket. After sowing, cover a layer of thin soil and compact it.

2. The ecological protection construction method of the drainage river slope bank in the saline-alkali environment according to claim 1, characterized in that Replace 1), Preparation before laying in the above S3: Coir fiber blanket laying construction with purchasing the coir fiber blanket according to the length and width of the slope, so that the width of the coir fiber blanket is greater than the slope width by 25 ± 8 cm; Replace 2), Laying method with starting from one side of the river channel slope, putting the two ends of the width of the coir fiber blanket from the top of the river channel slope to the bottom of the slope, and gradually unfolding the coir fiber blanket along the length direction of the river channel slope. At this time, the laid width of the coir fiber blanket fills the width direction of the river channel slope, and the overlap length between adjacent two coir fiber blankets is 20 - 30 cm.

3. The ecological protection construction method for the drainage river slope bank in the saline-alkali environment according to claim 2, characterized in that, For the purchase of the coir fiber blanket in the above step S3, make the width of the two coir fiber blankets greater than the slope width by 60 ± 10 cm. Replace 2), Laying method with starting from one side of the river channel slope, putting the two ends of the width of one coir fiber blanket from the top of the river channel slope to the slope surface, and putting the two ends of the width of the other coir fiber blanket from the lower end of the previous coir fiber blanket to the bottom of the river channel slope. The overlap length between the upper and lower adjacent two coir fiber blankets is 20 - 30 cm, and the overlap length between the left and right adjacent two coir fiber blankets is 20 - 30 cm.

4. The ecological protection construction method for the drainage river slope bank in the saline-alkali environment according to claim 3, characterized in that, An installation groove (11) is formed along the length direction of the river channel slope (1) on the river channel slope (1). The upper end of the lower coconut fiber blanket (12) in the width direction enters the installation groove (11), and the lower end of the width direction extends to the bottom of the river channel slope (1). The installation groove (11) is backfilled with soil to fix the upper end of the lower coconut fiber blanket (12). The upper end of the upper coconut fiber blanket (12) in the width direction is located at the top of the river channel slope (1), and the lower end of the width direction is located on the lower coconut fiber blanket (12) with an overlapping length of 20 - 30 cm. During construction, the lower coconut fiber blanket (12) is constructed first, and then the upper coconut fiber blanket (12) is constructed.

5. The ecological protection construction method for the drainage river slope bank in saline-alkali environment according to claim 1, characterized in that, The U-shaped nail (2) driving tool includes a box body (31) with rollers (3) installed at the bottom. The box openings of the box body (31) face upwards. An installation strip (32) with a rectangular longitudinal section is arranged at the inner bottom of the box body (31) along the length direction of the box body (31). After the U-shaped nail (2) is inserted into the installation strip (32), the horizontal side of the U-shaped nail (2) is located on the upper end surface of the installation strip (32) and abuts against the upper end surface of the installation strip (32). There is a gap B (321) between the vertical side of the U-shaped nail (2) and the bottom of the box body (31). One end of the installation strip (32) is fixedly connected to the side wall of the box body (31), and there is a gap A (322) with the width of a U-shaped nail (2) between the other end and the side wall of the box body (31). An ejection hole (33) for the U-shaped nail (2) to be ejected is formed at the bottom of the box body (31) corresponding to the gap A (322). A driving member is arranged on the box body (31) to make the U-shaped nails (2) on the installation strip (32) be ejected from the ejection hole (33) one by one and inserted into the river channel slope (1).

6. The ecological protection construction method for the drainage river slope bank in the saline-alkali environment according to claim 5, characterized in that, The driving member includes a chute (323) formed on the upper end surface of the installation strip (32) and extending out of one end of the installation strip (32) near the gap A (322). A slider (324) is slidably connected in the chute (323). The upper end surface of the slider (324) is flush with the upper end surface of the installation strip (32). A first compression spring (325) is arranged on the groove wall of the chute (323). One end of the first compression spring (325) far from the groove wall of the chute (323) is fixedly connected to the slider (324). The first compression spring (325) presses the slider (324) against the inner side wall of the box body (31). The slider (324) is provided with an inclined surface (326) on the upper end surface of the installation strip (32) that extends out. The lower end of the inclined surface (326) abuts against the inner side wall of the box body (31), and the higher end of the inclined surface (326) extends to one side of the installation strip (32). On both sides of the mounting strip (32), the relative inner walls of the box body (31) are provided with guide rods (34). On one side of each U-shaped nail (2), the mounting strip (32) is slidably connected with a U-shaped push plate (327). The two vertical sides of the push plate (327) are respectively slidably connected with the two guide rods (34). A second compression spring (341) is sleeved outside each guide rod (34). The second compression spring (341) is located on the side of the push plate (327) away from the U-shaped nail (2). The two ends of the second compression spring (341) are respectively fixedly connected with the inner wall of the box body (31) and the side wall of the push plate (327). The second compression spring (341) makes the push plate (327) generate an extrusion force on each U-shaped nail (2), so that the U-shaped nail (2) farthest from the push plate (327) abuts against the side wall of the box body (31). On the box body (31), there is a power component for pushing the U-shaped nail (2) that is the farthest from the push plate (327) and abuts against the side wall of the box body (31) to move downward and insert into the river slope (1).

7. The ecological protection construction method for the drainage river slope bank in the saline-alkali environment according to claim 6, characterized in that, The power component includes two relatively distributed mounting blocks (35) arranged on the outer wall of the box body (31). On each mounting block (35), there is a vertically extending vertical rod (351). The two vertical rods (351) are connected by a foot pedal (352). The foot pedal (352) is slidably connected with the two vertical rods (351). The lower end of the foot pedal (352) is provided with an insertion plate (353) inserted into the box body (31). The insertion plate (353) is directly above a U-shaped nail (2) that is the farthest from the push plate (327) and abuts against the side wall of the box body (31). A third compression spring (354) is sleeved outside each vertical rod (351). The two ends of the third compression spring (354) are respectively fixedly connected with the lower end of the foot pedal (352) and the upper end of the mounting block (35). When the third compression spring (354) is in a natural state, the insertion plate (353) is directly above the U-shaped nail (2). The upper ends of the two vertical rods (351) are connected by a U-shaped handle (355).

8. The ecological protection construction method for the drainage river slope bank in the saline-alkali environment according to claim 7, wherein, A horizontally distributed closing plate (36) is slidably connected to the box wall of the box body (31). One end of the closing plate (36) extends to the plate surface of the insertion plate (353), and the other end extends out of the box body (31) by a part. The lower end surface of the closing plate (36) is distributed close to the upper end surfaces of each U-shaped nail (2).

9. The ecological protection construction method for the drainage river slope bank in the saline-alkali environment according to claim 8, characterized in that, A driving groove (361) distributed along the length direction of the closing plate (36) is formed on the lower end surface of the closing plate (36). The side of the driving groove (361) away from the insertion plate (353) extends out of one side surface of the closing plate (36). The upper end of the push plate (327) is provided with a driving block (362) slidable in the driving groove (361). One side wall of the driving groove (361) is distributed close to the insertion plate (353).

10. The ecological protection construction method for the drainage river slope bank in saline-alkali environment according to claim 9, characterized in that, The push plate (327) is provided with a horizontally extending limiting rod (37) on the side facing away from the staple (2). One end of the limiting rod (37) far away from the push plate (327) is rotatably connected with an oval plate (371). The box body (31) is provided with a limiting hole (372) for the oval plate (371) to move out of the box body (31). The lower middle part of one side surface of the oval plate (371) facing away from the limiting rod (37) is provided with an adjusting rod (373), and the length of the adjusting rod (373) is distributed along the length direction of the limiting rod (37).

Images