Reinforced anchor rod, river regulation ecological protection slope and construction method of river regulation ecological protection slope

Abstract

The invention discloses a reinforced anchor rod, a riverway improvement ecological protection slope and a construction method thereof, belongs to the technical field of riverway improvement, and solves the problem that a gabion protection slope support fails due to the humidity change of a soil body. According to the reinforced anchor rod, a drill bit is slidably connected into an anchor rod body, a rotating rod is located in the anchor rod body, the lower end of the rotating rod is fixed to the drill bit, a propelling disc is arranged at the upper end of the anchor rod body, the upper end of the rotating rod penetrates through the propelling disc and is slidably connected with the propelling disc, and a fixing ring is arranged on the inner wall of the anchor rod body; a plurality of torsion springs are arranged between the fixing ring and the top of the drill bit. The ecological protection slope for river regulation comprises a gabion protection slope and a gabion foundation, the gabion foundation is connected with gabion protection feet, and the gabion protection feet are laid on a riverbed; and a plurality of reinforced anchor rods are arranged between the gabion protection slope and the riverbed. The whole supporting strength is guaranteed through automatic drilling of the drill bit and automatic stretching and retracting of the insertion rod. The whole riverbed does not need to be excavated and backfilled, and the excavation and backfilling amount of gabion protection foot construction is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of river regulation, and specifically relates to a reinforced anchor rod, an ecological slope protection for river regulation and a construction method thereof. Background Art

[0002] At present, the commonly used ecological slope protection form is gabion stone cage, that is, gabion net is folded to form a rectangular space, and stones are tightly filled into this space. Due to the large scouring depth, the depth of the slope protection foundation is generally large. The riverbed needs to be excavated before the slope protection foundation construction. The amount of riverbed excavation and backfilling is relatively large, and the project investment cost is high.

[0003] After the gabion slope protection is laid, it is necessary to fix the four corners and the middle part with support columns to prevent the gabion slope protection from displacement and failure. However, natural disasters such as earthquakes and landslides near the river will cause cracks in the slope, and the river water will penetrate into the slope through the cracks, causing the support strength of the support columns to weaken, and then cause the support columns to move at the same time as the gabion slope protection, causing the slope protection to fail. Summary of the invention

[0004] The purpose of the present invention is to provide a reinforced anchor rod to solve the problem of failure of support of gabion slope protection caused by changes in soil moisture.

[0005] Another object of the present invention is to provide an ecological slope protection for river regulation.

[0006] Another object of the present invention is to provide a construction method for river channel regulation and ecological slope protection.

[0007] The technical solution of the present invention is: (one) A reinforced anchor rod comprises an anchor rod body and a first reinforcement component, wherein the first reinforcement component comprises a drill bit and a rotating rod, the anchor rod body is a hollow structure, the drill bit is located at the lower end of the anchor rod body, the drill bit is slidably connected in the anchor rod body, the rotating rod is located in the anchor rod body, the lower end of the rotating rod is fixed to the drill bit, an advancement disk is provided at the upper end of the anchor rod body, the upper end of the rotating rod passes through the advancement disk and is slidably connected to the advancement disk, a fixing ring is provided on the inner wall of the anchor rod body, and a plurality of torsion springs are provided between the fixing ring and the top of the drill bit.

[0008] As a further improvement of the present invention, it also includes a second reinforcement component, which includes a guide cylinder, a turntable and an insertion rod. The guide cylinder is slidably sleeved on the rotating rod, the turntable is arranged on the periphery of the guide cylinder, a ratchet is arranged in the center of the turntable, and a pawl connected to the ratchet is arranged on the rotating rod; a plurality of guide frames are distributed circumferentially on the turntable, the guide frames are arranged radially along the turntable, the insertion rod is slidably connected in the guide frames, a T-shaped buckle is connected to the insertion rod, a plurality of arc grooves are opened on the turntable, the arc grooves extend from the vicinity of the center of the turntable to the edge of the turntable, the T-shaped buckle is slidably installed in the arc groove, a reset spring is arranged in the arc groove, one end of the reset spring is connected to the T-shaped buckle, and the other end of the reset spring is connected to the inner wall of one end of the arc groove close to the center of the turntable, and a plurality of vertical slots are opened circumferentially on the side wall of the anchor rod body, and the insertion rods pass through the vertical slots one by one.

[0009] As a further improvement of the present invention, a plurality of sliding rods are distributed circumferentially on the guide cylinder, a plurality of vertical guide grooves are circumferentially provided on the inner wall of the anchor rod body, and the ends of the sliding rods are slidably connected in the vertical guide grooves in a one-to-one correspondence.

[0010] As a further improvement of the present invention, a connecting spring is provided between the sliding rod and the top of the drill bit.

[0011] As a further improvement of the present invention, a pressing plate is slidably and rotatably connected to the outer periphery of the anchor rod body, and a pressure spring is provided between the pressing plate and the pushing plate. (two) The invention discloses an ecological slope protection for river channel regulation, comprising a gabion slope protection, which is laid on the surface of a slope, a gabion foundation connected to the lower end of the gabion slope protection, which is pre-buried at the junction of the slope and a riverbed, and a gabion footing connected to the gabion foundation, which is laid on the riverbed; and a plurality of the above-mentioned reinforced anchor rods are arranged between the gabion slope protection and the riverbed. (three) A construction method for river channel regulation and ecological slope protection comprises the following steps: A. Dig a pre-buried pit at the junction of the slope and the riverbed, and backfill the pre-buried pit to fix the gabion foundation; B. Lay gabion slope protection on the slope surface, lay gabion foot protection on the riverbed, and tie and connect the gabion slope protection and gabion foot protection to the gabion foundation respectively; C. Insert multiple reinforced anchor rods through the gabion slope protection and into the slope. When inserting, first rotate the rotating rod counterclockwise to make the inserted rod completely in the anchor rod body, then screw in the push disk to make the drill bit and the anchor rod body extend into the soil of the slope, then loosen the rotating rod, and insert the rod through the vertical slot and extend into the soil, thereby limiting the anchor rod body, and then fill the gabion slope protection with stones to complete the installation of the reinforced anchor rod; D. When the soil moisture around the drill bit increases, the supporting effect of the soil decreases. At this time, the drill bit rotates under the elastic force of the torsion spring and continues to drill into deeper soil. During the downward rotation of the drill bit, the plunger is synchronously retracted into the anchor body. Under the traction of the connecting spring, the plunger moves downward with the drill bit. When the drill bit stops drilling, the plunger is synchronously expanded and inserted into the soil under the elastic force of the reset spring, thereby ensuring that the supporting strength of the anchor body to the gabion slope protection does not change.

[0014] Furthermore, the length of the gabion foot guard is greater than twice the maximum scouring depth of the riverbed.

[0015] The beneficial effects of the present invention are: 1. The present invention uses the first reinforcement component to change the downward movement of the drill bit as the moisture content of the soil changes, thereby ensuring that the drill bit automatically drills into the soil with lower moisture content, and further ensuring that the overall support strength of the anchor body and the drill bit to the gabion slope protection will not be weakened; through the use of the second reinforcement component, multiple plugs can be inserted into the soil perpendicular to the drill bit direction, thereby preventing the anchor body from sliding along the drilling direction, ensuring the support stability of the anchor body, and at the same time, the squeezing force between the plug and the soil can share part of the shear force of the gabion slope protection on the anchor body, avoiding deformation of the anchor body, thereby improving the upper limit of the support strength of the reinforced anchor of the present invention, and through the cooperation of the turntable, it is ensured that the plug is retracted during drilling and extended after drilling. The first reinforcement component and the second reinforcement component cooperate with each other, and the drill bit automatically drills and the plug automatically retracts, thereby ensuring the overall support strength and avoiding the problem of weakening the support strength due to river water seeping into the slope.

[0016] 2. The ecological slope protection of the present invention lays the gabion foot guard on the surface of the riverbed. It only needs to excavate the junction of the slope and the riverbed to pre-bury the gabion foundation, without excavating and backfilling the entire riverbed, reducing the amount of excavation and backfilling for the gabion foot guard construction; at the same time, when the riverbed is scoured, the free end of the gabion foot guard will move downward synchronously with the scouring depth of the riverbed, that is, the gabion foot guard will slowly rotate and move with the connection between the gabion foundation and the gabion foot guard as the axis along the scouring depth of the riverbed. The rotation and downward movement of the gabion foot guard will make the gabion foundation more stable, and will not be affected by the scouring depth of the riverbed, and will not affect the gabion slope protection. By using the reinforced anchor rod of the present invention, the gabion slope protection is firmly fixed on the slope, and the support strength will not be weakened due to the infiltration of river water into the slope.

[0017] 3. The construction method of the present invention is simple, the reinforced anchor rod is easy to install, the engineering workload is small, the construction period is short, and the engineering cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a reinforced anchor rod of the present invention; Figure 2 It is a schematic diagram of the structure of the first reinforcement component and the second reinforcement component in the present invention; Figure 3 is a schematic structural diagram of the second reinforcement component in the present invention; Figure 4 It is a schematic diagram of the structure of the ratchet and the pawl in the present invention; Figure 5 It is a structural schematic diagram of an ecological slope protection for river regulation according to the present invention.

[0019] In the figure: 1. Gabion foundation; 2. Gabion foot guard; 3. Gabion slope protection; 4. Reinforced anchor rod; 41. Anchor rod body; 42. Push plate; 411-vertical slot; 51. First reinforcement component; 511. Drill bit; 512. Rotating rod; 513. Fixing ring; 514. Torsion spring; 52. Second reinforcement component; 521-vertical guide groove; 522. Sliding rod; 523. Guide cylinder; 61. Guide frame; 62. Insert rod; 63. T-shaped buckle; 64. Turntable; 641. Arc groove; 65. Reset spring; 71. Ratchet; 72. Connecting plate; 73. Ratchet; 81. Connecting spring; 91. Pressing plate; 92. Pressure spring. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1-4 As shown, a reinforced anchor rod includes an anchor rod body 41 and a first reinforcement component 51. The first reinforcement component 51 includes a drill bit 511 and a rotating rod 512. The anchor rod body 41 is a hollow structure. The drill bit 511 is located at the lower end of the anchor rod body 41. The drill bit 511 is slidably connected in the anchor rod body 41. The rotating rod 512 is located in the anchor rod body 41. The lower end of the rotating rod 512 is fixed on the drill bit 511. The upper end of the anchor rod body 41 is provided with a propulsion disk 42. The upper end of the rotating rod 512 passes through the propulsion disk 42 and is slidably connected to the propulsion disk 42. A fixing ring 513 is provided on the inner wall of the anchor rod body 41. A plurality of torsion springs 514 are provided between the fixing ring 513 and the top of the drill bit 511.

[0022] The second reinforcement component 52 is also included, and the second reinforcement component 52 includes a guide cylinder 523, a rotating disk 64 and an insertion rod 62. The guide cylinder 523 is slidably sleeved on the rotating rod 512, and the rotating disk 64 is arranged on the periphery of the guide cylinder 523. A ratchet 71 is provided in the center of the rotating disk 64. A pawl 73 connected with the ratchet is provided on the rotating rod 512, and the pawl 73 is installed on the rotating rod 512 through a connecting plate 72; a plurality of guide frames 61 are distributed along the circumferential direction on the rotating disk 64, and the guide frames 61 are arranged radially along the rotating disk 64. The insertion rod 62 is slidably connected in the guide frame 61, and the insertion rod A T-shaped buckle 63 is connected to 62, and a plurality of arc grooves 641 are opened on the turntable 64. The arc groove 641 extends from the vicinity of the center of the turntable 64 to the edge of the turntable 64. The T-shaped buckle 63 is slidably installed in the arc groove 641. A return spring 65 is arranged in the arc groove 641. One end of the return spring 65 is connected to the T-shaped buckle 63, and the other end of the return spring 65 is connected to the inner wall of the arc groove 641 at one end near the center of the turntable 64. A plurality of vertical grooves 411 are opened along the circumferential direction on the side wall of the anchor rod body 41, and the inserted rods 62 pass through the vertical grooves 411 one by one.

[0023] A plurality of sliding rods 522 are distributed along the circumferential direction on the guide cylinder 523 , and a plurality of vertical guide grooves 521 are provided along the circumferential direction on the inner wall of the anchor rod body 41 . The ends of the sliding rods 522 are slidably connected in the vertical guide grooves 521 in a one-to-one corresponding manner.

[0024] A connecting spring 81 is provided between the sliding rod 522 and the top of the drill bit 511 .

[0025] A pressing plate 91 is slidably and rotatably connected to the outer periphery of the anchor rod body 41 , and a pressure spring 92 is provided between the pressing plate 91 and the pushing plate 42 .

[0026] like Figure 5 As shown, an ecological slope protection for river channel regulation includes a gabion slope protection 3, which is laid on the surface of the slope. The lower end of the gabion slope protection 3 is connected to a gabion foundation 1, and the gabion foundation 1 is pre-buried at the junction of the slope and the riverbed. It is characterized in that: the gabion foundation 1 is connected to a gabion foot 2, and the gabion foot 2 is laid on the riverbed; a plurality of the above-mentioned reinforced anchor rods 4 are arranged between the gabion slope protection 3 and the riverbed.

[0027] A construction method for river channel regulation and ecological slope protection comprises the following steps: A. Excavate a pre-buried pit at the junction of the slope and the riverbed and on both sides perpendicular to the riverbed, and backfill the pre-buried pit with a fixed gabion foundation 1; B. Lay the gabion slope protection 3 on the slope surface, lay the gabion foot protection 2 on the riverbed, and tie and connect the gabion slope protection 3 and the gabion foot protection 2 to the gabion foundation 1 respectively; C. Insert multiple reinforced anchor rods 4 according to claim 4 through the gabion slope protection 3 and into the slope. When inserting, first rotate the rotating rod 512 counterclockwise to make the insertion rod 62 completely in the anchor rod body 41, then screw in the propulsion disk 42 to make the drill bit 511 and the anchor rod body 41 extend into the soil of the slope, then loosen the rotating rod 512, and the insertion rod 62 passes through the vertical slot 411 and extends into the soil, thereby limiting the anchor rod body 41, and then fill the gabion slope protection 3 with stones, thus completing the installation of the reinforced anchor rod 4; D. When the moisture content of the soil around the drill bit 511 increases, the supporting effect of the soil decreases. At this time, the drill bit 511 rotates under the elastic force of the torsion spring 514 and continues to drill into deeper soil. During the downward rotation of the drill bit 511, the insertion rod 62 is synchronously contracted into the anchor rod body 41. Under the pulling effect of the connecting spring 81, the insertion rod 62 moves downward with the drill bit 511. When the drill bit 511 stops drilling, the insertion rod 62 is synchronously expanded and inserted into the soil under the elastic force of the reset spring 65, thereby ensuring that the supporting strength of the anchor rod body 41 for the gabion slope protection 3 does not change.

[0028] The length of the gabion foot guard 2 is greater than twice the maximum scouring depth of the riverbed. When the maximum scouring depth is reached, the riverbed scouring depth forms a slope of approximately 1:2.0 with the horizontal direction to achieve a stable state.

[0029] When the rotating rod 512 rotates counterclockwise, the engagement of the pawl 73 and the ratchet 71 can drive the ratchet 71 to rotate counterclockwise, thereby driving the turntable 64 to rotate. When the turntable 64 rotates, it drives the T-shaped buckle 63 to overcome the damping force of the reset spring 65 and move along the arc groove 641 toward the center of the turntable 64, thereby driving the insertion rod 62 to retract into the anchor rod body 41, and will not hinder the drilling of the drill bit 511.

[0030] When the anchor rod body 41 is drilling along with the drill bit 511 , the torsion spring 514 is always in a compressed state and in an inclined state.

[0031] When the soil moisture around the drill bit 511 increases, the damping of the soil on the drill bit 511 is less than the elastic force of the torsion spring 514. At this time, the torsion spring 514 will push the drill bit 511 to rotate downward during the resetting process, so that the drill bit 511 automatically drills in. When the drill bit 511 drills into the soil with lower moisture, the resistance of the soil to the drill bit 511 is equal to the elastic force of the torsion spring 514, and the drill bit 511 stops drilling. As a result, the drill bit 511 is placed in a deeper soil layer, and the support strength of the gabion slope protection 3 remains unchanged, preventing the gabion slope protection 3 from moving and failing.

[0032] When the drill bit 511 starts to rotate downward, the rotating rod 512 starts to rotate, and the insertion rod 62 has not yet been completely retracted into the anchor body 41, and the entire second reinforcement assembly will not move downward immediately. When the insertion rod 62 is completely retracted into the anchor body 41, the insertion rod 62 is released from the limit, and under the pulling action of the connecting spring 81, the sliding rod 522 will drive multiple insertion rods 62 to move downward. When the drill bit 511 stops rotating, the rotating rod 512 remains stationary. Under the elastic force of the reset spring 65, the turntable 64 will rotate clockwise, driving the T-shaped buckle 63 to move along the arc groove 641 toward the edge of the turntable 64, and the insertion rod 62 expands outward and passes through the vertical notch 411 and is inserted into the soil. In this way, multiple insertion rods 62 are limited in a direction perpendicular to the drill bit 511, preventing the anchor body 41 from moving along the drilling direction, ensuring the support stability of the anchor body 41, and preventing the gabion slope protection 3 from moving.

[0033] The gabion slope protection 3 will generate a certain shear force on the anchor body 41, and the squeezing effect between the multiple inserted rods 62 and the soil can share part of the shear force for the anchor body 41, thereby avoiding deformation of the anchor body 41 and further enhancing the support strength of the anchor body 41.

[0034] When the gabion slope protection 3 is filled with stones, the pressing plate 91 is closely attached to the upper surface of the gabion. The pressing plate 91 can keep the stones filled in the gabion slope protection 3 in close contact through the pressure spring 92 to prevent the stones from moving.

Claims

1. A reinforced anchor rod, comprising an anchor rod body (41), characterized in that: The anchor rod (41) further comprises a first reinforcement component (51), the first reinforcement component (51) comprising a drill bit (511) and a rotating rod (512); the anchor rod body (41) is a hollow structure; the drill bit (511) is located at the lower end of the anchor rod body (41); the drill bit (511) is slidably connected in the anchor rod body (41); the rotating rod (512) is located in the anchor rod body (41); the lower end of the rotating rod (512) is fixed to the drill bit (511); the upper end of the anchor rod body (41) is provided with a propulsion disk (42); the upper end of the rotating rod (512) passes through the propulsion disk (42) and is slidably connected to the propulsion disk (42); a fixing ring (513) is provided on the inner wall of the anchor rod body (41); and a plurality of torsion springs (514) are provided between the fixing ring (513) and the top of the drill bit (511).

2. A reinforced anchor rod according to claim 1, characterized in that: The second reinforcement assembly (52) further comprises a guide cylinder (523), a rotating disk (64) and an insertion rod (62), wherein the guide cylinder (523) is slidably sleeved on the rotating rod (512), the rotating disk (64) is arranged on the periphery of the guide cylinder (523), a ratchet (71) is arranged at the center of the rotating disk (64), and a ratchet pawl (73) which is matched and connected to the ratchet is arranged on the rotating rod (512); A plurality of guide frames (61) are distributed along the circumferential direction of the rotating disk (64), the guide frames (61) are arranged along the radial direction of the rotating disk (64), the insertion rod (62) is slidably connected in the guide frame (61), the insertion rod (62) is connected to a T-shaped buckle (63), a plurality of arc grooves (641) are opened on the rotating disk (64), the arc grooves (641) extend from the vicinity of the center of the rotating disk (64) to the edge of the rotating disk (64), and the T-shaped buckle (63) is slidably installed A return spring (65) is arranged in the arc groove (641), one end of the return spring (65) is connected to the T-shaped buckle (63), and the other end of the return spring (65) is connected to the inner wall of the arc groove (641) at one end close to the center of the rotating disk (64). The side wall of the anchor rod body (41) is provided with a plurality of vertical slots (411) along the circumferential direction, and the insertion rods (62) are passed through the vertical slots (411) in a one-to-one correspondence.

3. A reinforced anchor rod according to claim 2, characterized in that: A plurality of sliding rods (522) are distributed circumferentially on the guide cylinder (523), a plurality of vertical guide grooves (521) are circumferentially provided on the inner wall of the anchor rod body (41), and the ends of the sliding rods (522) are slidably connected in the vertical guide grooves (521) in a one-to-one correspondence.

4. A reinforced anchor rod according to claim 3, characterized in that: A connecting spring (81) is provided between the sliding rod (522) and the top of the drill bit (511).

5. A reinforced anchor rod according to any one of claims 1 to 4, characterized in that: The outer periphery of the anchor rod body (41) is slidably and rotatably connected to a pressing plate (91), and a pressure spring (92) is provided between the pressing plate (91) and the pushing plate (42).

6. An ecological slope protection for river channel regulation, comprising a gabion slope protection (3), the gabion slope protection (3) being laid on the surface of a slope, the lower end of the gabion slope protection (3) being connected to a gabion foundation (1), the gabion foundation (1) being pre-buried at the junction of the slope and the riverbed, characterized in that: The gabion foundation (1) is connected to a gabion foot guard (2), and the gabion foot guard (2) is laid on a riverbed; a plurality of reinforced anchor rods according to any one of claims 1 to 5 are arranged between the gabion slope protection (3) and the riverbed.

7. A construction method for river regulation and ecological slope protection, characterized in that The following steps are involved: A. Dig a pre-buried pit at the junction of the slope and the riverbed, and backfill the pre-buried pit to fix the gabion foundation (1); B. laying a gabion slope protection (3) on the slope surface, laying a gabion foot protection (2) on the riverbed, and tying and connecting the gabion slope protection (3) and the gabion foot protection (2) to the gabion foundation (1); C. A plurality of reinforced anchor rods as claimed in claim 4 are passed through the gabion slope protection (3) and inserted into the slope. When inserting, the rotating rod (512) is first rotated counterclockwise to allow the insertion rod (62) to be completely inside the anchor rod body (41). The propulsion disc (42) is then screwed in to allow the drill bit (511) and the anchor rod body (41) to extend into the soil of the slope. The rotating rod (512) is then released, and the insertion rod (62) passes through the vertical slot (411) and extends into the soil, thereby limiting the position of the anchor rod body (41). Stones are then filled into the gabion slope protection (3), thereby completing the installation of the reinforced anchor rod. D. When the moisture content of the soil around the drill bit (511) increases, the supporting effect of the soil decreases. At this time, the drill bit (511) rotates under the elastic force of the torsion spring (514) and continues to drill into a deeper soil layer. During the downward rotation of the drill bit (511), the plunger (62) is synchronously retracted into the anchor rod body (41). Under the pulling effect of the connecting spring (81), the plunger (62) moves downward with the drill bit (511). When the drill bit (511) stops drilling, the plunger (62) is synchronously expanded and inserted into the soil under the elastic force of the return spring (65), thereby ensuring that the supporting strength of the anchor rod body (41) for the gabion slope protection (3) does not change.

8. A construction method for river regulation and ecological slope protection according to claim 7, characterized in that: The length of the gabion foot guard (2) is greater than twice the maximum scouring depth of the riverbed.

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