Tree anti-falling and anti-arching pavement device and construction method

Abstract

This invention relates to the field of landscaping, and in particular to a tree anti-lodging and anti-arching pavement device and construction method, comprising a root-blocking cylinder fitted at the base of the tree trunk, the bottom of the root-blocking cylinder connected to one end of a tensioning device, the other end of the tensioning device connected to a root-fixing net, the root-fixing net covering the root ball of the transplanted tree, the root-fixing net being connected to the upper ends of several imitation root soil anchors, the imitation root soil anchors being driven into the soil layer around the root ball, the root-fixing net and the imitation root soil anchors together forming a fixing device, fixing the tree root ball in the soil layer to prevent lodging. The beneficial effects of this invention are: (1) by setting up imitation root soil anchors and root-fixing nets, the root system is "pressed" into the soil layer to compensate for the lack of deep roots of the plant, achieving the effect of wind resistance and lodging resistance; (2) it can prevent the growth of shallow roots to achieve the purpose of anti-arching pavement; (3) the entire device is located underground and does not occupy above-ground space.

Description

Technical Field

[0001] This invention relates to the field of landscaping, and in particular to a device and construction method for preventing tree lodging and road arching. Background Technology

[0002] Large trees play an important role in cities, beautifying the environment, maintaining ecological balance, and purifying the air. They are indispensable in cities, but they also pose some hidden dangers. For example, in the event of strong winds or heavy rain, trees often fall down, causing great damage to roadside vehicles, pedestrians, roads, and power facilities. On the other hand, the root systems of some trees planted on sidewalks or squares often arch up the surrounding paving stones, causing cracks in the road surface. This not only affects the urban landscape but also makes the road surface uneven, affecting the safety and convenience of pedestrians.

[0003] All of the above problems are related to the shallow root systems of trees. One major reason why trees in cities often lack deep roots is that during landscaping or municipal construction, hardened debris is often not thoroughly cleared, resulting in a thin layer of topsoil that prevents roots from penetrating or leads to poor soil quality in the deeper layers. Furthermore, in pursuit of rapid greening, modern urban development often involves transplanting large trees, pruning their roots before transplanting. This results in root balls that are too small to support the above-ground parts, making them highly susceptible to falling over.

[0004] To address the problem of fallen trees, the common practice is to erect supports on the ground to brace the trunks. However, these supports are often unsightly and obstruct pedestrian traffic. For cases where tree roots damage the road surface, a method to isolate the roots from moisture can be used, such as by applying salt, herbicides, waste engine oil, or diesel fuel to kill the shallow roots. However, improper application of this method can lead to the death of the entire plant, posing a significant risk and polluting the environment. Currently, there are no other particularly effective preventative measures. The only solution is to promptly lift the road surface after damage occurs, cut off the roots with tools, remove the damaged parts, and then repave the road. This approach is costly and inefficient.

[0005] To address the above issues, some related technologies have emerged. For example, CN114568206B discloses a support device that automatically adjusts with tree growth, including a mounting ring and several legs. Rotating sleeves on the legs are rotatably connected to the mounting ring. A support rod is fixedly connected below the rotating sleeve, and an upper connecting rod is fixedly connected above it. A sleeve is slidably fitted onto the support rod. A top-pressure rod is slidably fitted inside a sleeve pivotally connected to the upper part of the upper connecting rod. An arc-shaped clamp is fixedly connected to the inner end of the top-pressure rod. Several arc-shaped clamps are elastically connected. As the tree grows taller, the support rod and sleeve slide relative to each other. The first annular ratchet on the support rod engages with the first pawl inside the sleeve, preventing the support rod from retracting. The upper connecting rod drives the sleeve to slide outward, and the top-pressure rod slides relative to the sleeve, automatically adapting to the tree's thickness. The second annular ratchet on the top-pressure rod engages with the second pawl inside the sleeve, preventing the top-pressure rod from retracting. The advantage of this support device is that it can automatically adjust with the tree's height and thickness, providing effective support for the tree. However, the device is installed above ground, which affects the visual effect of the garden landscape, and if it is placed on the sidewalk, it will also interfere with pedestrians' walking.

[0006] CN115281038B discloses a device for preventing the falling of municipal green trees, comprising a binding assembly and a fixing assembly. The binding assembly includes two binding members, each with an arc-shaped groove on one side facing the other. Each binding member has a connecting component for fixing to the other binding member. A screw cavity is formed inside the binding member, and a screw is housed within the cavity. The screw is rotatably connected to the binding member. A slider is threaded onto the screw, and a horizontal plate is fixedly connected to the side of the slider facing away from the screw. The horizontal plate slides within the screw cavity, and a stop plate is fixedly connected to one end of the horizontal plate. The stop plate is arc-shaped and located within the arc-shaped groove of the binding member. This device improves the efficiency of adjusting the anti-falling device, but still requires manual adjustment and occupies ground space, causing disturbance to the landscape and pedestrians.

[0007] CN212103529U discloses a root-stabilizing device to prevent roadside tree roots from damaging sidewalks. It includes a tree pit, tree pit stones, side stones, curb stones, and a sidewalk. A concrete retaining block is sealed around the perimeter of the tree pit. The concrete retaining block has a steel mesh inside to increase its strength. A drainage pipe is installed on the concrete retaining block near the sidewalk. The sidewalk consists of permeable bricks, a leveling layer, a permeable geotextile layer, a permeable base layer, and a permeable cushion layer. One end of the drainage pipe connects to the permeable cushion layer, and the other end connects to the lower part of the tree pit. As a root-stabilizing device, the concrete retaining block restricts the outward and downward extension of roadside tree roots, reducing and controlling damage to the sidewalk surface. However, its structure is complex, costly, and inconvenient for tree transplantation. Summary of the Invention

[0008] To address the problems in the prior art, this invention provides a tree anti-lodging and anti-arching road surface device. The technical solution includes: a root-blocking cylinder fitted around the base of the tree trunk; the bottom of the root-blocking cylinder connected to one end of a tensioning device; the other end of the tensioning device connected to a root-fixing net; the root-fixing net covering the root ball of the transplanted tree; the root-fixing net connected to the upper ends of several imitation root soil anchors; the imitation root soil anchors driven into the soil layer around the root ball; the root-fixing net and the imitation root soil anchors together form a fixing device that fixes the tree root ball in the soil layer to prevent lodging.

[0009] In a preferred embodiment, the root-blocking tube includes a root-blocking strip and a limiting clamp. Several buffer pads are provided on the inner side of the root-blocking strip, and a connecting ring is formed by hollowing out the bottom of the root-blocking strip. The connecting ring is connected to the root-blocking strip body through multiple connection points. The connecting ring is fastened to a tensioning device. When the root-blocking strip is rolled into a cylindrical structure, the limiting clamp is clamped on the overlapping part of the root-blocking strip to control the diameter of the root-blocking tube during installation. The root-blocking strip is made of stainless steel or polymer material and has a certain degree of resilience after being rolled.

[0010] In a preferred embodiment, the height of the root-blocking cylinder is not less than 15cm.

[0011] In a preferred embodiment, the tensioning device includes a housing, a pull bar, a spring, a reel, and a stop clip; the reel is disposed inside the housing, the spring is wound around the reel, one end of the spring is connected to the reel, the other end is connected to the pull bar, the pull bar is wound around the spring, and an openable spring hook A is provided at its end.

[0012] In a preferred embodiment, the inner rolled surface of the pull bar is provided with a ratchet groove; the outer shell is provided with an outwardly protruding cable outlet, one side of which extends into a fixed plate, on which a stop clip is provided. The pull bar passes through the gap between the fixed plate and the stop clip. After the pawl on the stop clip is lowered, it engages with the ratchet groove to realize the unidirectional movement of the pull bar; a connecting ring A is provided on the side of the outer shell opposite to the cable outlet.

[0013] In a preferred embodiment, the stop catch is characterized by comprising a base, a torsion spring, a pawl, a connecting shaft, and a handle;

[0014] The base is fixed to the mounting plate of the outer shell;

[0015] The pawl is connected to the base via a connecting shaft. A torsion spring is wound around the connecting shaft, with one end of the torsion spring locked onto the base and the other end fixed to the pawl. The handle is connected to one end of the connecting shaft.

[0016] In a preferred embodiment, the two support plates of the base are connected to the fixed plate to support the horizontal plate. The horizontal plate is provided with an arc-shaped groove. A baffle is provided at each end of the base, and the baffle on the side of the cable outlet is connected to the cable outlet.

[0017] One end of the pawl is angled to engage with the ratchet groove on the pull bar, and the other end is fixed to the connecting shaft. The connecting shaft has an opening in the middle for the torsion spring to pass through, and both ends of the connecting shaft are placed in the shaft holes on the support plate.

[0018] One end of the torsion spring is engaged with the inside of the arc-shaped groove of the cross plate, and the other end is fixed to the pawl.

[0019] In a preferred embodiment, the root-fixing net is a spider web-like structure composed of root-fixing ropes and connecting rings B; wherein the root-fixing ropes are provided with openable and closable spring hooks B at both ends, and the spring hooks B are fastened to the connecting rings B, so that the root-fixing ropes form a multi-directional connection; and the root-fixing ropes 31 are made of materials with strong tensile strength and corrosion resistance, such as stainless steel wire rope, nylon braided rope, etc.

[0020] In a preferred embodiment, the simulated root soil anchor consists of a tie rod, an anchor head, and an anchor body. The anchor head includes a bearing plate, an anchor member, and a connecting ring C. The anchor member is installed on the bearing plate, and the connecting ring C is installed on it. The bearing plate is sleeved with the tie rod. The surface of the tie rod is covered with the anchor body. The tie rod is made of high-strength, high-elongation, high-fatigue-strength, and good-stability materials, such as high-strength steel wire, steel strand, and threaded steel bars, and is treated with anti-corrosion. The type of anchor member corresponds to the material of the tie rod. For example, steel wire bundles are anchored with upset heads, and threaded steel bars are anchored with nuts. The anchor body is designed as a cylindrical shape, an enlarged end head shape, or a continuous spherical shape, etc. The material can be selected as expansive cement grout, cement grout, resin grout, etc.

[0021] The present invention also provides a construction method using the above-mentioned device, the technical solution of which is:

[0022] Step 1: Construction Preparation: In order to fix the artificial root soil anchor in the soil layer, it is necessary to determine the number, distribution, diameter, depth, drilling shape, material and size of the tie rods based on the size of the tree, soil conditions and local wind force, etc.; and make a root fixing net of appropriate size according to the diameter of the root ball of the transplanted tree. Then, carry out construction preparation according to the conventional soil anchor construction process.

[0023] Step 2: Digging a hole: Dig a planting hole at the location where the tree needs to be planted. The depth of the planting hole should be less than the height of the root ball of the tree to be transplanted plus the height of the root barrier tube, so as to ensure that the top of the root barrier tube is exposed above the ground.

[0024] Step 3: Making the imitation root soil anchor: Drill a hole on the lower side wall of the tree pit using a drilling machine. The specific operation steps and requirements for drilling are the same as those for conventional soil anchors. Treat the tie rod with anti-corrosion, then insert it to the bottom of the hole and place it in the center of the hole. After the tie rod is inserted into the predetermined position in the hole, grouting can be carried out. The grouting material can be selected from one of the following: expanding cement grout, cement grout, or resin grout. Use conventional grouting methods to grout. Stop grouting when the grout overflows from the hole. Tension anchoring or direct anchoring can be used as needed. When anchoring, put the bearing plate on the tie rod and then fix the anchor to obtain the imitation root soil anchor.

[0025] Step 4: Assemble the root net: Place the root ball of the tree into the planting pit, connect the root-fixing rope to the connecting ring C on the anchor head through the spring hook B, and then connect multiple root-fixing ropes end to end through the connecting ring B to form a radial main axis. Connect the horizontal root-fixing ropes between the radial main axes. If necessary, radial auxiliary axes can also be added between the horizontal root-fixing ropes to finally connect them into a spider web-like structure.

[0026] Step 5: Install the root barrier tube: Roll the root barrier tape into a tube shape and put it on the base of the tree trunk, with the connecting ring on the root barrier tape facing down and the buffer pad facing the tree trunk, leaving a gap between the tree trunk and the root barrier tube. After adjusting the diameter of the root barrier tube, use the limiting clamp to clamp the overlapping part of the root barrier tape at the top to fix the shape.

[0027] Step 6: Install the tensioning device: Connect the connecting ring A on the outer shell of the tensioning device to the spring hook B at the top of the radial main shaft of the root anchoring net. Tighten the radial main shaft towards the tree trunk, then press the handle of the stop clip to lift the pawl, pull out the pull bar inside the outer shell, hook the spring hook A at the top of the pull bar onto the connecting ring of the root blocking cylinder, release the handle, press down the pawl, and lock the pawl into the ratchet groove on the pull bar. This completes the installation of one tensioning device. Repeat the above installation process on each radial main shaft connected to the artificial root anchor to achieve the connection between the root blocking cylinder and the root anchoring net, and use the rebound force of the tensioning device itself to tension the root anchoring net.

[0028] Step 7: Backfilling: Fill the planting pit with soil. When backfilling, cover the gap between the trunk and the root barrier to prevent soil from falling between them. Ensure that there is no soil filling the gap between the trunk and the root barrier, and that the top of the root barrier is exposed above the soil surface. After backfilling, remove the covering and the limiting clips on the root barrier. The entire device is now installed. After that, maintain the transplanted trees according to the usual methods.

[0029] Step 8: Tree Replacement: When a tree needs to be replaced, first clamp the limiting clip onto the overlapping part of the root barrier tape. Dig up the surface soil to expose the tensioning device and root-fixing net. Press the handle on the tensioning device's stop clip to loosen the taut cable. Then, remove the spring hook A on the cable from the root-fixing cylinder, remove the limiting clip, and remove the root-fixing cylinder from the trunk. Unfasten all the interconnected spring hooks B on the root-fixing net, remove the root-fixing net, and leave the artificial root soil anchored in the soil layer. Then, cut the lateral roots according to the conventional tree transplanting method, pack the root ball, and move the tree. Place the replacement tree in the planting pit and repeat steps 4-7 above to reinstall the device.

[0030] The beneficial effects of this invention are:

[0031] (1) In view of the problem that the roots of trees are shallow and the resistance to lodging is insufficient, the present invention sets up root-like soil anchors and root-fixing nets to "press" the roots into the soil layer to make up for the lack of deep roots of plants and achieve the effect of wind resistance and lodging resistance.

[0032] (2) In view of the problem of root system arching of road surface, the present invention sets up root blocking tube under the topsoil and at the base of the trunk. There is a gap between the root blocking tube and the trunk, which is free of soil and forms an air layer, which can prevent the growth of shallow roots and achieve the purpose of preventing road surface arching.

[0033] (3) The entire device is located underground and does not occupy above-ground space. It will not have an adverse visual impact on the greening and landscape effects. When applied to sidewalks or squares, it will not affect the safety and convenience of pedestrians. It is widely applicable to various scenarios.

[0034] (4) The root barrier can automatically expand as the tree thickens, and its inner side is equipped with a buffer pad, which will not harm the plant, will not affect the normal growth of the plant, and does not need to be replaced.

[0035] (5) The present invention connects the root-blocking cylinder and the root-fixing net by a tensioning device, which makes the device form a force-bearing whole, which is more conducive to resisting external forces and enhancing the anti-lodging effect.

[0036] (6) The tensioning device has the characteristic of automatic unidirectional contraction. It can automatically tighten as the tree grows and the root-blocking tube expands. And due to the action of the stop card, it will not be stretched in the opposite direction, so as to ensure the tightness of the root-fixing net and the stability of its force characteristics.

[0037] (7) The root-fixing net is assembled from root-fixing ropes and connecting rings. It has a flexible structure and is easy to use. It can be adapted to different types and sizes of trees. The net structure is breathable and permeable to water, and will not affect the normal growth of plants.

[0038] (8) The entire device can be reused repeatedly, and can be disassembled and installed repeatedly. The imitation root soil anchor can also be left in the soil for reuse, which is convenient for tree transplanting and replacement, and also reduces costs and is green and environmentally friendly. This device can adapt to tree growth and does not require human intervention. At the same time, it realizes two functions: anti-lodging and anti-arching of the road surface, achieving two goals at once. It further reduces costs and improves efficiency, and has great promotional value and broad market prospects. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0040] Figure 2 This is a top view of the device of the present invention.

[0041] Figure 3 This is a top view of the root-blocking cylinder of the present invention.

[0042] Figure 4 This is a front view of the root-blocking cylinder of the present invention.

[0043] Figure 5 This is a front view of the tensioning device of the present invention.

[0044] Figure 6 This is a top view of the tensioning device of the present invention.

[0045] Figure 7 This is a front view of the stop card of the present invention.

[0046] Figure 8 This is a right view of the stop card of the present invention.

[0047] Figure 9 This is a top view of the stop card of the present invention.

[0048] Figure 10 This is a front view of the anchoring rope of the present invention.

[0049] Figure 11 This is a front view of the root-like soil anchor of the present invention.

[0050] In the diagram: 1. Root-blocking tube; 2. Tensioning device; 3. Root-stabilizing net; 4. Imitation root soil anchor; 5. Tree trunk; 6. Root ball; 11. Root-blocking tape; 12. Limiting clip; 21. Outer shell; 22. Pulling rod; 23. Spring; 24. Reel; 25. Stop clip; 31. Root-stabilizing rope; 32. Connecting ring B; 41. Pull rod; 42. Anchor head; 43. Anchor body; 111. Buffer pad; 112. Connecting ring; 113. Connection point; 211. Cable outlet; 212. Fixing plate; 213. Connecting ring A; 221. Spring hook A ; 222, ratchet groove; 251, base; 252, torsion spring; 253, pawl; 254, connecting shaft; 255, handle; 311, rope; 312, spring hook B; 421, bearing plate; 422, anchor; 423, connecting ring C; 2511, support plate; 2512, cross plate; 2513, arc groove; 2514, baffle. Detailed Implementation

[0051] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0052] Example 1

[0053] like Figure 1 As shown, a tree anti-lodging and anti-arching road surface device includes a root-blocking cylinder 1 fitted at the base of the tree trunk 5. Its main function is to organize the lateral growth of shallow roots, thereby preventing the road surface from arching. The bottom of the root-blocking cylinder 1 is connected to one end of a tensioning device 2, and the other end of the tensioning device 2 is connected to a root-fixing net 3. The root-fixing net 3 covers the root ball 6 of the transplanted tree. The root-fixing net 3 is connected to the upper end of several imitation root soil anchors 4. The imitation root soil anchors 4 are driven into the soil layer around the root ball 6. The root-fixing net 3 and the imitation root soil anchors 4 together form a fixing device to fix the tree root ball 6 in the soil layer and prevent it from lodging.

[0054] like Figure 3-4 As shown, the root-blocking tube 1 includes a root-blocking strip 11 and a limiting clamp 12. Several buffer pads 111 are provided on the inner side of the root-blocking strip 11 to protect the trunk 5 and maintain the gap between the trunk 5 and the root-blocking tube 1. The bottom of the root-blocking strip 11 is hollowed out to form a connecting ring 112. The connecting ring 112 is connected to the main body of the root-blocking strip 11 through multiple connection points 113. The connecting ring 112 is fastened to the tensioning device 2. When the root-blocking strip 11 is rolled into a cylindrical structure, the limiting clamp 12 is clamped at the overlapping part of the root-blocking strip 11 to control the diameter of the root-blocking tube 1 during installation. The root-blocking strip 11 is a strip structure with a certain elasticity after being rolled up. It is made of stainless steel or polymer materials. This structure is both strong and can expand with the growth of the tree.

[0055] The height of the root-blocking cylinder 1 is not less than 15cm.

[0056] like Figure 2-3As shown, the tensioning device 2 includes a housing 21, a pull bar 22, a spring 23, a reel 24, and a stop clip 25. The reel 24 is disposed inside the housing 21, and the spring 23 is wound around the reel 24. One end of the spring 23 is connected to the reel 24, and the other end is connected to the pull bar 22. The pull bar 22 is wound around the spring 23, and an openable spring hook A221 is provided at its end. This part of the structure is similar to that of a steel tape measure. The spring 22 can be automatically retracted after being pulled out.

[0057] The pull bar 22 has a ratchet groove 222 on one side of its inner rolled surface; the outer shell 21 has an outwardly protruding cable outlet 211, one side of which extends into a fixing plate 212, on which a stop clip 25 is provided. The pull bar 22 passes through the gap between the fixing plate 212 and the stop clip 25. After the pawl 253 on the stop clip 25 is lowered, it cooperates with the ratchet groove 222 to realize the unidirectional movement of the pull bar 22; a connecting ring A213 is provided on the side of the outer shell 21 opposite to the cable outlet 211.

[0058] like Figure 7-9 As shown, the stop lock 25 consists of a base 251, a torsion spring 252, a pawl 253, a connecting shaft 254, and a handle 255;

[0059] The base 251 is fixed to the fixing plate 212 of the outer shell 21;

[0060] Pawl 253 is connected to base 251 via connecting shaft 254. Torsion spring 252 is wound around connecting shaft 254. One end of torsion spring 252 is locked onto base 251, and the other end is fixed onto pawl 253. Handle 255 is connected to one end of connecting shaft 254.

[0061] The two support plates 2511 of the base 251 are connected to the fixed plate 212 to support the horizontal plate 2512. The horizontal plate 2512 is provided with an arc-shaped groove 2513. A baffle 2514 is provided at each end of the base 251. The baffle 2514 on the side of the outlet 211 is connected to the outlet 211.

[0062] One end of the pawl 253 is angled to engage with the ratchet groove 222 on the pull bar 22, and the other end is fixed to the connecting shaft 254. The connecting shaft 254 has an opening in the middle for the torsion spring 252 to pass through, and both ends of the connecting shaft 254 are placed in the shaft holes on the support plate 2511.

[0063] One end of the torsion spring 252 is engaged with the inside of the arc-shaped groove 2513 of the cross plate 2512, and the other end is fixed to the pawl 253.

[0064] like Figure 2 and 10As shown, the root-fixing net 3 is a spider web-like structure composed of root-fixing ropes 31 and connecting rings B32; wherein the root-fixing ropes 31 have openable and closable spring hooks B312 at both ends of the rope body 311, and the spring hooks B312 are fastened to the connecting rings B32, so that the root-fixing ropes 31 form a multi-directional connection, and the root-fixing ropes 31 are made of materials with high tensile strength and corrosion resistance, such as stainless steel wire rope.

[0065] like Figure 11 As shown, the simulated root soil anchor 4 consists of a tie rod 41, an anchor head 42, and an anchor body 43. The anchor head 42 includes a bearing plate 421, an anchor 422, and a connecting ring C423. The anchor 422 is provided on the bearing plate 421, and the connecting ring C423 is provided on it. The bearing plate 421 is sleeved with the tie rod 41. The surface of the tie rod 41 is covered with the anchor body 43. The tie rod 41 is made of high-strength steel wire with high strength, high elongation, high fatigue strength, and good stability, and is treated with anti-corrosion. The anchor 422 is a upset head anchor. The anchor body 43 is designed as a cylinder, and the material can be expanded cement grout.

[0066] Example 2

[0067] The construction method using the above-mentioned device is as follows:

[0068] Step 1: Construction preparation: In order to fix the imitation root soil anchor 4 in the soil layer, it is necessary to determine the number, distribution, diameter, depth, drilling shape, material and size of the tie rods according to the size of the tree, soil conditions and local wind force, etc., and make a root fixing net 3 of the appropriate size according to the diameter of the root ball 6 of the transplanted tree. Then, the construction preparation is carried out according to the conventional soil anchor construction process.

[0069] Step 2: Digging a pit: Dig a planting pit at the location where the tree needs to be planted. The depth of the planting pit should be less than the height of the root ball 6 of the tree to be transplanted plus the height of the root barrier tube 1, so as to ensure that the top of the root barrier tube 1 is exposed above the ground.

[0070] Step 3: Fabrication of the Imitation Root Soil Anchor 4: Drill a hole at the lower part of the side wall of the tree pit using a drilling rig. The specific operation steps and requirements for drilling are the same as those for conventional soil anchors. The tie rod 41 is treated with anti-corrosion, then inserted to the bottom of the hole and positioned in the center of the hole. After the tie rod 41 is inserted into the predetermined position in the hole, grouting can be performed. The grouting material can be selected from one of the following: expanding cement grout, cement grout, or resin grout. Grouting is performed using conventional grouting methods. The grouting can be stopped after it overflows from the hole opening. Tension anchoring or direct anchoring can be used as needed. When anchoring, the bearing plate 421 is placed on the tie rod 41, and then the anchor 422 is fixed to obtain the imitation root soil anchor 4.

[0071] Step 4: Assemble the root-fixing net 3: Place the root ball 6 of the tree into the planting pit, connect the root-fixing rope 31 to the connecting ring C423 on the anchor head 42 through the spring hook B312, and then connect multiple root-fixing ropes 31 end to end through the connecting ring B32 to form a radial main axis. Connect the transverse root-fixing ropes 31 between the radial main axes. If necessary, radial auxiliary axes can also be added between the transverse root-fixing ropes 31 to finally connect them into a spider web-like structure.

[0072] Step 5: Install root blocking tube 1: Roll the root blocking tape 11 into a tube shape and put it on the base of the trunk 5. The connecting ring 112 on the root blocking tape 11 faces down and the buffer pad 111 faces the trunk 5, so that there is a gap between the trunk 5 and the root blocking tube 1. After adjusting the diameter of the root blocking tube 1, use the limiting clip 12 to clamp the overlapping part of the root blocking tape 11 to fix it.

[0073] Step 6: Install tensioning device 2: Connect the connecting ring A213 on the outer shell of tensioning device 2 to the spring hook B312 at the top of the radial main shaft of root anchoring net 3. Tighten the radial main shaft towards the trunk 5. Then press the handle 255 of the stop clip 25, lift the pawl 253, pull out the pull bar 22 inside the outer shell 21, hook the spring hook A221 at the top of the pull bar 22 onto the connecting ring 112 of the root blocking cylinder 1, release the handle 255, press down the pawl 253, and lock the pawl 253 into the ratchet groove 222 on the pull bar 22. This completes the installation of one tensioning device 2. Repeat the above installation process on each radial main shaft connected to the imitation root anchor 4 to achieve the connection between the root blocking cylinder 1 and the root anchoring net 3, and use the rebound force of the tensioning device 2 itself to tension the root anchoring net 3.

[0074] Step 7: Backfilling: Fill the planting pit with soil. When backfilling, cover the gap between the trunk 5 and the root barrier tube 1 to prevent soil from falling between the trunk 5 and the root barrier tube 1. Ensure that there is a gap between the trunk 5 and the root barrier tube 1 without soil filling, and that the top of the root barrier tube 1 is exposed above the soil surface. After backfilling, remove the covering and the limiting clip 12 on the root barrier tube 1. The entire device is now installed. After that, the transplanted trees can be maintained according to the usual methods.

[0075] Step 8: Tree Replacement: When a tree needs to be replaced, first clamp the limiting clip 12 onto the overlapping part of the root-blocking tape 11, dig up the surface soil to expose the tensioning device 2 and the root-fixing net 3, press the handle 255 on the stop clip 25 of the tensioning device 2 to loosen the taut pull bar 22, then remove the spring hook A221 on the pull bar 22 from the root-blocking cylinder 1, remove the limiting clip 12, and remove the root-blocking cylinder 1 from the trunk 5; untie all the spring hooks B312 connected to each other on the root-fixing net 3, disassemble the root-fixing net 3, leaving the artificial root soil anchor 4 in the soil layer. Then, cut the lateral roots according to the conventional tree transplanting method, pack the root ball 6, and move the tree away; place the replacement tree in the planting pit, repeat steps 4-7 above, and reinstall the device.

Claims

1. A tree-resistant anti-lodging and anti-arching road surface device, characterized in that, The method includes a root-blocking tube (1) fitted around the base of the trunk (5), the bottom of the root-blocking tube (1) being connected to one end of a tensioning device (2), the other end of the tensioning device (2) being connected to a root-fixing net (3), the root-fixing net (3) covering the root ball (6) of the transplanted tree, the root-fixing net (3) being connected to the upper end of several imitation root soil anchors (4), the imitation root soil anchors (4) being driven into the soil layer around the root ball (6), and the root-fixing net (3) and the imitation root soil anchors (4) together forming a fixing device to fix the root ball (6) of the tree in the soil layer and prevent it from falling over; The tensioning device (2) includes a housing (21), a pull bar (22), a spring (23), a reel (24), and a stop clip (25); the reel (24) is located inside the housing (21), the spring (23) is wound around the reel (24), one end of the spring (23) is connected to the reel (24), and the other end is connected to the pull bar (22); the pull bar (22) is wound around the spring (23), and an openable spring hook A (221) is provided at its end; The inner rolled surface of the pull bar (22) is provided with a ratchet groove (222); the outer shell (21) is provided with an outward protruding cable outlet (211), one side of the cable outlet (211) extends into a fixing plate (212), on which a stop clip (25) is provided. The pull bar (22) passes through the gap between the fixing plate (212) and the stop clip (25). After the pawl (253) on the stop clip (25) is lowered, it cooperates with the ratchet groove (222) to realize the unidirectional movement of the pull bar (22); a connecting ring A (213) is provided on the side of the outer shell (21) opposite to the cable outlet (211). The stop catch (25) consists of a base (251), a torsion spring (252), a pawl (253), a connecting shaft (254), and a handle (255); The base (251) is fixed to the fixing plate (212) of the outer shell (21); The pawl (253) is connected to the base (251) via the connecting shaft (254). The torsion spring (252) is wound around the connecting shaft (254). One end of the torsion spring (252) is stuck on the base (251), and the other end is fixed on the pawl (253). The handle (255) is connected to one end of the connecting shaft (254).

2. The tree-resistant and anti-arching road surface device according to claim 1, characterized in that, The root-blocking tube (1) includes a root-blocking strip (11) and a limiting clamp (12). Several buffer pads (111) are provided on the inner side of the root-blocking strip (11). The bottom of the root-blocking strip (11) is hollowed out to form a connecting ring (112). The connecting ring (112) is connected to the main body of the root-blocking strip (11) through multiple connection points (113). The connecting ring (112) is fastened to the tensioning device (2). When the root-blocking strip (11) is rolled into a cylindrical structure, the limiting clamp (12) is clamped on the overlapping part of the root-blocking strip (11) to control the diameter of the root-blocking tube (1) during installation.

3. The tree-resistant anti-lodging and anti-arching road surface device according to claim 1, characterized in that, The height of the root-blocking cylinder (1) is not less than 15cm.

4. The tree-resistant and anti-arching road surface device according to claim 1, characterized in that, The two support plates (2511) of the base (251) are connected to the fixed plate (212) to support the horizontal plate (2512). The horizontal plate (2512) is provided with an arc-shaped groove (2513). A baffle (2514) is provided at each end of the base (251). The baffle (2514) on the side of the outlet (211) is connected to the outlet (211). One end of the pawl (253) is angled to engage with the ratchet groove (222) on the pull bar (22), and the other end is fixed on the connecting shaft (254). The connecting shaft (254) has an opening in the middle for the torsion spring (252) to pass through. Both ends of the connecting shaft (254) are placed in the shaft holes on the support plate (2511). One end of the torsion spring (252) is engaged with the inside of the arc-shaped groove (2513) of the cross plate (2512), and the other end is fixed on the pawl (253).

5. A tree-resistant anti-lodging and anti-arching road surface device according to claim 1, characterized in that, The aforementioned root-fixing net (3) is a spider web-like structure composed of root-fixing ropes (31) and connecting rings B (32); wherein the root-fixing ropes (31) have openable and closable spring hooks B (312) at both ends of the rope body (311), and the spring hooks B (312) are fastened to the connecting rings B (32), so that the root-fixing ropes (31) form a multi-directional connection.

6. The tree-resistant anti-lodging and anti-arching road surface device according to claim 1, characterized in that, The simulated root soil anchor (4) consists of a tie rod (41), an anchor head (42), and an anchor body (43). The anchor head (42) includes a bearing plate (421), an anchor (422), and a connecting ring C (423). The anchor (422) is provided on the bearing plate (421), and the connecting ring C (423) is provided on it. The bearing plate (421) is sleeved with the tie rod (41), and the surface of the tie rod (41) is covered with the anchor body (43).

7. A construction method for a tree-resistant and anti-arching pavement device according to any one of claims 1-6, characterized in that, Includes the following steps: Step 1: Construction preparation: In order to fix the imitation root soil anchor (4) in the soil layer, it is necessary to determine the number, distribution, diameter, depth, drilling shape, material and size of the tie rod according to the size of the tree, soil conditions and local wind conditions; and make a root fixing net (3) of the appropriate size according to the diameter of the root ball (6) of the transplanted tree, and then carry out construction preparation according to the conventional soil anchor construction process; Step 2: Digging a pit: Dig a planting pit at the location where the tree needs to be planted. The depth of the planting pit should be less than the height of the root ball (6) of the tree to be transplanted plus the height of the root barrier tube (1) to ensure that the top of the root barrier tube (1) is exposed above the ground. Step 3: Making the imitation root soil anchor (4): Drill a hole at the lower part of the side wall of the tree pit using a drilling machine. The specific operation steps and requirements for drilling are the same as those for conventional soil anchors: The tie rod (41) is treated with anti-corrosion, and then inserted into the bottom of the hole and placed in the center of the hole. After the tie rod (41) is inserted into the predetermined position in the hole, grouting can be carried out. The grouting material can be selected from one of the following: expansion cement grout, cement grout, or resin grout. The conventional grouting method is used for grouting. The grouting can be stopped after it overflows from the hole. Tension anchoring or direct anchoring can be used as needed. When anchoring, the bearing plate (421) is put on the tie rod (41), and then the anchor (422) is fixed to obtain the imitation root soil anchor (4). Step 4: Assemble the root net (3): Place the root ball (6) of the tree into the planting pit, and connect the root rope (31) to the connecting ring C (423) on the anchor head (42) through the spring hook B (312). Then connect the multiple root ropes (31) end to end through the connecting ring B (32) to form a radial main axis. Connect the transverse root ropes (31) between the radial main axis. If necessary, radial auxiliary axes can also be added between the transverse root ropes (31) to finally connect them into a spider web structure. Step 5: Install the root barrier tube (1): Roll the root barrier tape (11) into a tube shape and put it on the base of the trunk (5). The connecting ring (112) on the root barrier tape (11) should face down and the buffer pad (111) should face the trunk (5), so that there is a gap between the trunk (5) and the root barrier tube (1). After adjusting the diameter of the root barrier tube (1), use the limiting clamp (12) to clamp the overlapping part of the root barrier tape (11) to fix it. Step 6: Install the tensioning device (2): Connect the connecting ring A (213) on the outer shell of the tensioning device (2) to the spring hook B (312) at the top of the radial main shaft of the root fixing net (3), tighten the radial main shaft towards the trunk (5), then press the handle (255) of the stop clip (25), lift the pawl (253), pull out the pull bar (22) inside the outer shell (21), and hook the spring hook A (221) at the top of the pull bar (22) onto the root blocking cylinder. (1) On the connecting ring (112), loosen the handle (255), press down the pawl (253), and put the pawl (253) into the ratchet groove (222) on the tie bar (22), thus completing the installation of a tensioning device (2). Repeat the above installation process on each radial main shaft connected to the imitation root anchor (4) to realize the connection between the root blocking cylinder (1) and the root fixing net (3), and use the elastic force of the tensioning device (2) itself to tension the root fixing net (3); Step 7: Backfill the soil: Fill the planting pit with soil. When backfilling, cover the gap between the trunk (5) and the root barrier (1) to prevent soil from falling between the trunk (5) and the root barrier (1), ensuring that there is a gap between the trunk (5) and the root barrier (1) without soil filling, and that the top of the root barrier (1) is exposed above the soil surface. After backfilling, remove the covering and the limiting clip (12) on the root barrier (1). The entire device is now installed. After that, the transplanted trees can be maintained in accordance with conventional methods. Step 8: Replace the tree: When the tree needs to be replaced, first clamp the limiting clip (12) on the overlapping part of the root barrier (11), dig up the surface soil to expose the tensioning device (2) and the root fixing net (3), press the handle (255) on the stop card (25) of the tensioning device (2) to loosen the taut pull bar (22), then remove the spring hook A (221) on the pull bar (22) from the root barrier cylinder (1), remove the limiting clip (12), and remove the root barrier cylinder (1) from the trunk (5); untie the spring hooks B (312) that are connected to each other on the root fixing net (3), remove the root fixing net (3), keep the imitation root soil anchor (4) in the soil layer, then cut the lateral roots according to the conventional tree transplanting method, pack the root ball (6), move the tree away, place the replacement tree in the planting pit, repeat the above steps 4-7, and reinstall the device.

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