A rock slope protection device and method thereof

Abstract

The present invention relates to the technical field of slope protection devices, and specifically provides a rock and soil slope protection device and a method thereof, comprising a protection frame, a protection net and a pressure relief ring, wherein the pressure relief ring comprises a spiral annular steel pipe and a fixing piece, an open portion is arranged on the outer periphery of the spiral annular steel pipe, so that the anchor rope can more conveniently pass into and out of the spiral annular steel pipe, thereby improving the installation efficiency of the pressure relief ring, and a support assembly is arranged on the spiral annular steel pipe, the support assembly can support part of the anchor rope wound around the outer periphery of the spiral annular steel pipe, so that part of the anchor rope is separated from the contact with the outer periphery of the spiral annular steel pipe, and the support strength of the support assembly is positively correlated with the radius of the spiral annular steel pipe, so that the overload protection capacity of the spiral annular steel pipe and the support assembly as a whole will not change significantly, thereby reducing the attenuation degree of the overload protection capacity each time it is impacted, thereby extending the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of slope protection devices, and in particular to a rock and soil slope protection device and a method thereof. Background Art

[0002] Slope protection devices are a series of facilities and technologies designed to protect the stability of slopes and prevent landslides, collapses or scours.

[0003] For example, Chinese patent CN217579833U discloses a passive slope protection system, which includes steel columns arranged in sequence, a bayonet is longitudinally opened on the top of the steel column, a pressure cover is detachably connected to the lower side of the front wall, a locking pin that can close the bayonet is inserted on the upper part of the steel column, and two upper and lower support ropes, the upper support rope is placed on the bayonet, and the lower support rope is clamped between the pressure cover and the steel column, wherein a protective net is connected between the upper and lower support ropes, an anchor rope is arranged on the steel column, and a decompression ring is arranged on the anchor rope, and the collapsed or fallen stones and soil can be intercepted by the arrangement of the protective net, the anchor rope and the decompression ring.

[0004] However, when installing the pressure relief ring in the above scheme, the anchor rope needs to be inserted into the pressure relief ring little by little, and finally the anchor rope is fixed by the threaded sleeve, resulting in low installation efficiency of the pressure relief ring. In addition, the pressure relief ring relies on the support and deformation of the external steel pipe to absorb the energy when it is impacted. The cross-shape of the pressure relief ring will be deformed after multiple impacts, and its torsional radius will become smaller, then the elastic coefficient of the steel pipe will become larger, which is equivalent to reducing the elastic force that can buffer the impact. This situation will reduce the number of times the pressure relief ring can resist impact and its service life, which is not conducive to the normal use of the pressure relief ring. Summary of the invention

[0005] Based on this, it is necessary to provide a rock and soil slope protection device and method thereof to address the problems that the current pressure relief ring has low installation efficiency and the pressure relief effect of the pressure relief ring deteriorates after multiple uses.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A rock and soil slope protection device, comprising:

[0008] A protection frame, the protection frame is fixed near the slope, a protection net is arranged on the protection frame, anchor ropes are evenly spaced and connected to the protection frame, and the other end of the anchor ropes is connected to the protection net;

[0009] A decompression ring, the decompression ring comprising a spiral annular steel pipe and a fixing part, the two ends of the spiral annular steel pipe have overlapping parts, the outer peripheral side walls outside the overlapping parts at the two ends of the spiral annular steel pipe are open, the anchor rope passes through one end of the spiral annular steel pipe and is wound around the outer periphery of the spiral annular steel pipe and passes through the other end, and the fixing part fixes the overlapping part;

[0010] A support component, wherein the support component can support part of the anchor rope wound around the outer circumference of the spiral ring steel pipe, and the support force of the anchor rope supported by the support component is positively correlated with the radius of the spiral ring steel pipe.

[0011] Furthermore, the support assembly includes a support plate and a threaded rod, the support plate is fixedly connected to the inner circumference of the spiral annular steel pipe, the support plate is perpendicular to the line connecting the overlapping part of the spiral annular steel pipe and the center of the spiral annular steel pipe, the threaded rod is spirally connected to the middle position of the support plate and is radially distributed along the spiral annular steel pipe, the spiral annular steel pipe is provided with a through groove, and an elastic member is coaxially connected to the bottom of the threaded rod, the elastic member passes through the through groove and is fixedly connected to the anchor rope to support the anchor rope, and the threaded rod moves radially along the spiral ring to push and pull the elastic member.

[0012] Furthermore, a rotating ring is provided at the connection position between the threaded rod and the elastic member, and the rotating ring has two parts, an upper and a lower part, which can rotate relative to each other but cannot move axially relative to each other. The upper part of the rotating ring is fixedly connected to the threaded rod, and the lower part of the rotating ring is fixedly connected to the elastic member.

[0013] Furthermore, the elastic member is a compression spring.

[0014] Furthermore, a handle groove is provided on the support plate.

[0015] Furthermore, a plurality of clamping rings are detachably mounted on the outer periphery of the spiral annular steel pipe near the overlapping portion, and the plurality of clamping rings are in frictional contact with the outer periphery of the anchor rope.

[0016] Furthermore, the clamping ring includes two semicircular rings, and both ends of the two semicircular rings are detachably connected via a screw and a nut.

[0017] Furthermore, the two semicircular rings are made of wear-resistant material.

[0018] Furthermore, the fixing member includes a fixing block, the fixing block is provided with two circular holes, the two circular holes are arranged in parallel, and the spiral annular steel pipe is inserted into the two circular holes and is fixed.

[0019] The present invention also provides a rock slope protection method, comprising the following specific steps:

[0020] S100: Survey the terrain to determine whether slope protection is needed;

[0021] S200: Installation of geotechnical slope protection devices;

[0022] S300: Check regularly. After each impact, the support strength of the elastic parts of the geotechnical slope protection device needs to be weakened.

[0023] The beneficial effects of the present invention are as follows: 1. By setting an open part on the outer circumference of the spiral annular steel pipe of the pressure relief ring, the anchor rope can be more conveniently inserted into and out of the spiral annular steel pipe, thereby improving the installation efficiency of the pressure relief ring. 2. By setting a support assembly, the support assembly can support part of the anchor rope wound around the outer circumference of the spiral annular steel pipe, so that part of the anchor rope is separated from the contact with the outer circumference of the spiral annular steel pipe, and the support strength of the support assembly is positively correlated with the radius of the spiral annular steel pipe, so that the overload protection capacity of the spiral annular steel pipe and the support assembly as a whole will not change significantly, and the overload protection capacity of the spiral annular steel pipe and the support assembly as a whole is maintained within a constant range as much as possible, thereby reducing the attenuation of the overload protection capacity each time it is impacted, thereby extending the service life. 3. By setting a plurality of clamps on the outer circumference of the open part of the spiral annular steel pipe, and the clamps rub against the anchor rope, when the anchor rope is tightened, a part of the energy can be consumed by friction with the plurality of clamps, thereby increasing the overload protection capacity of the spiral annular steel pipe.

[0024] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of the pressure reducing ring of the present invention.

[0027] Figure 3 yes Figure 2 Exploded view of the middle pressure relief ring.

[0028] Figure 4 It is a structural schematic diagram of the threaded rod and the elastic member of the pressure reducing ring in the present invention.

[0029] Figure 5 It is a schematic diagram of the state when the pressure reducing ring of the present invention is not working.

[0030] Figure 6 yes Figure 5 Right side view of the middle pressure relief ring.

[0031] Figure 7 yes Figure 6 Cross-sectional view of the middle pressure relief ring along AA.

[0032] Figure 8 yes Figure 6 Cross-sectional view of the middle pressure relief ring along BB.

[0033] Fig. 9 It is a schematic diagram of the state of the pressure relief ring after being impacted in the present invention.

[0034] Fig.10 yes Fig. 9 Right view of the middle pressure relief ring.

[0035] Fig.11 yes Fig.10 Cross-sectional view of the middle pressure relief ring along CC.

[0036] Fig.12 yes Fig.10 Cross-sectional view of the middle pressure relief ring along DD. DETAILED DESCRIPTION

[0037] See also Figure 1-12 The names of the parts are as follows: 100, protection frame; 110, protection net; 120, anchor rope; 200, pressure relief ring; 210, spiral ring steel pipe; 211, overlapping part; 212, open part; 213, through groove; 220, fixing block; 221, round hole; 230, support plate; 231, handle groove; 232, threaded hole; 240, threaded rod; 250, elastic part; 251, clamp; 260, rotating ring; 270, clamp.

[0038] See also Figure 1-12 A rock and soil slope protection device is suitable for the protection of rock and soil slopes, including a protection frame 100. The protection frame 100 is generally fixedly arranged on both sides of a mountain road prone to landslides and collapses. A protection net 110 is connected to the protection frame 100. The protection net 110 can intercept landslides, collapsed soil and stones. In order to improve the connection strength between the protection net 110 and the protection frame 100, anchor ropes 120 are evenly spaced on the protection frame 100. One end of the anchor rope 120 is fixed on the protection frame 100, and the other end of the anchor rope 120 is connected to the protection net 110. The position connected to the protection net 110 can be selected according to the limit of the tension that the protection net 110 can withstand. At the same time, a decompression ring 200 is arranged on the anchor rope 120. Specifically, the anchor rope 120 passes through two ports of the decompression ring 200. The decompression ring 200 can overload the protection system to avoid serious damage to other components. That is to say, when the tension on the anchor rope 120 connected to the decompression ring 200 reaches a certain level, the decompression ring 200 starts and absorbs energy through deformation and displacement, thereby achieving overload protection.

[0039] The decompression ring 200 of the present invention comprises a spiral annular steel pipe 210 and a fixing member. The two ends of the spiral annular steel pipe 210 have overlapping parts 211. The fixing member is used to fix the overlapping parts 211, which is equivalent to fixing the spiral annular steel pipe 210 into an integral ring shape, and the two ports will not move relative to each other. The outer periphery of the spiral annular steel pipe 210 except the overlapping part 211 is open, that is, the outer periphery of the spiral annular steel pipe 210 is cut, and the cut cross section exceeds one-half of the cross section of the spiral annular steel pipe 210 to ensure that the anchor rope 120 can be wound around the open part 212. After the anchor rope 120 is inserted from one end of the spiral annular steel pipe 210, the anchor rope 120 is wound around the outer periphery of the spiral annular steel pipe 210 and passes through the other end of the spiral annular steel pipe 210. If the anchor rope 120 is inserted into the complete spiral annular steel pipe 210, it will require a lot of force to completely insert the anchor rope 120 into the spiral annular steel pipe 210, which makes the installation more difficult and leads to low installation efficiency. The open setting of the outer periphery of the spiral annular steel pipe 210 is more convenient for inserting the anchor rope 120 than the complete spiral annular steel pipe 210. It is only necessary to insert the anchor rope 120 from one end and then pass it out from the other end, and then reserve a part of the anchor rope 120 to be wrapped around the outer periphery of the spiral annular steel pipe 210 of the open part 212. The installation is convenient and efficient.

[0040] It can be understood that the pressure relief ring 200 in the prior art is deformed after being impacted, and as the number of impacts increases, the overall deformation degree of the pressure relief ring 200 gradually increases, and its torsional radius will become smaller, resulting in the degree of deformation each time being smaller than the previous deformation degree. That is to say, after the pressure relief ring 200 has been used for many times, the pressure relief ring 200 is deformed and gradually shrinks. The greater the overall deformation degree of the pressure relief ring 200, the greater the elastic coefficient of the pressure relief ring 200 will be, which is equivalent to compressing a part of the original length of the spring, and compressing a part after each impact, resulting in the gradual increase of the elastic force. When compressed again, a larger force is required to continue the compression, which will cause the degree of deformation of the pressure relief ring 200 to become smaller and smaller each time it is impacted, thereby greatly reducing the ability of the pressure relief ring 200 to provide overload protection. This situation will reduce the number of times the pressure relief ring 200 can resist impacts and its service life, which is not conducive to the normal use of the pressure relief ring 200.

[0041] Therefore, the present invention alleviates the significant decline in the overload protection capacity of the pressure reducing ring 200 by setting a support assembly. The support assembly can support part of the anchor rope 120 wrapped around the outer periphery of the spiral annular steel pipe 210, so that part of the anchor rope 120 is separated from the contact with the outer periphery of the spiral annular steel pipe 210, and the supporting strength of the support assembly is positively correlated with the radius of the spiral annular steel pipe 210.

[0042] It should be noted that, when the radius of the spiral annular steel pipe 210 is large, it means that the deformation degree of the spiral annular steel pipe 210 is very small at this time, and there is still a large range of deformation that can resist the next impact, which is similar to a softer spring. At this time, the supporting force of the support assembly is relatively large, which is equivalent to enhancing the elastic force of the spring, thereby improving the overall overload protection capability; and when the radius of the spiral annular steel pipe 210 is small, it means that the spiral annular steel pipe 210 undergoes a large deformation at this time, resulting in a much smaller radius of the spiral annular steel pipe 210, which in turn leads to a greatly reduced degree of deformation that can occur when resisting the next impact, which is similar to a spring that has been compressed a lot, resulting in a harder spring, and the supporting force of the support assembly is reduced at this time, which is equivalent to a part of the overall elastic force being weakened, so that the overload protection capability of the spiral annular steel pipe 210 and the support assembly as a whole will not change significantly, that is, the overload protection capability of the spiral annular steel pipe 210 and the support assembly as a whole is maintained within a constant range as much as possible, thereby reducing the attenuation of the overload protection capability each time it is impacted.

[0043] Specifically, Figure 2 and Figure 3 As shown, the support assembly in the present invention includes a support plate 230 and a threaded rod 240, both ends of the support plate 230 are fixedly arranged on the inner circumference of the spiral annular steel pipe 210, the support plate 230 is perpendicular to the line connecting the overlapping part 211 of the spiral annular steel pipe 210 and the center of the spiral annular steel pipe 210, and the support plate 230 is located below the center of the spiral annular steel pipe 210, so that the part of the center of the spiral annular steel pipe 210 that contacts the anchor rope 120 can be deformed to play a buffering role, and the threaded rod 240 is spirally connected to the middle position of the support plate 230, and the threaded rod 240 is distributed along the radial direction of the spiral annular steel pipe 210, and the threaded rod 240 can move along the radial direction of the spiral annular steel pipe 210 when rotating around its own axis. An elastic member 250 is coaxially connected to the bottom of the threaded rod 240. The elastic member 250 is a compression spring, and a through groove 213 is opened on the spiral ring steel pipe 210 at a position corresponding to the bottom of the threaded rod 240. The end of the elastic member 250 away from the threaded rod 240 passes through the through groove 213 and is fixedly connected to the anchor rope 120. The elastic member 250 supports this part of the anchor rope 120. Therefore, the elastic force of the elastic member 250 can be adjusted by rotating the threaded rod 240, and the supporting strength of the elastic member 250 on the anchor rope 120 can also be adjusted.

[0044] In order to facilitate the spiral connection between the threaded rod 240 and the support plate 230 , a threaded hole 232 is provided in the middle of the support plate 230 , and the threaded rod 240 is inserted into the threaded hole 232 and connected with the threaded hole 232 .

[0045] It is understandable that if Figure 5As shown, when the threaded rod 240 is rotated to move the threaded rod 240 downward, the elastic member 250 can be compressed, thereby increasing the elastic force of the elastic member 250, so that the support force of the elastic member 250 on the anchor rope 120 is increased; when the threaded rod 240 is rotated to move the threaded rod 240 upward, the compression of the elastic member 250 can be weakened, thereby reducing the elastic force of the elastic member 250, and further weakening the support force of the elastic member 250 on the anchor rope 120.

[0046] More specifically, since one end of the elastic member 250 away from the threaded rod 240 is fixed to the anchor rope 120, and the other end of the elastic member 250 needs to be connected to the threaded rod 240, it is necessary to ensure that the threaded rod 240 can rotate and also to ensure that the elastic member 250 is connected to the threaded rod 240, thereby preventing the elastic member 250 from detaching from the threaded rod 240. Therefore, a rotating ring 260 can be fixedly provided at the bottom of the threaded rod 240. The rotating ring 260 has an upper and lower part, which can rotate relative to each other but cannot move axially relative to each other, that is, similar to a bearing, the upper part of the rotating ring 260 is fixedly connected to the bottom of the threaded rod 240, and the lower part of the rotating ring 260 is fixedly connected to the elastic member 250.

[0047] It should be noted that the rotating ring 260 can be two upper and lower rotating disks, which are coaxial and connected by a bearing. Of course, in order to ensure that the elastic member 250 does not separate from the threaded rod 240, it can also be configured as follows: a sleeve is fixedly arranged at the bottom of the threaded rod 240, and a sleeve is also fixedly arranged on the anchor rope 120. Specifically, the sleeve can be fixed to the anchor rope 120 through a clamp 251, and the two ends of the elastic member 250 are respectively abutted in the two sleeves, thereby ensuring that the elastic member 250 does not separate from the threaded rod 240. The specific method is not specifically limited here.

[0048] In a further embodiment, a handle groove 231 is opened on the support plate 230. Since the threaded rod 240 needs to be rotated to adjust the supporting force of the elastic member 250, the operator can hold the support plate 230 through the handle groove 231, which is convenient for the operator to rotate the threaded rod 240. The top of the threaded rod 240 is a hexagonal prism, and the operator can use a hexagonal wrench to rotate the threaded rod 240, which is convenient for the operator to operate.

[0049] In a further embodiment, a plurality of clamping rings 270 are detachably installed on the outer periphery of the spiral annular steel pipe 210 near the overlapping portion 211. The clamping rings 270 can frictionally abut the anchor rope 120 on the center portion of the spiral annular steel pipe 210 against the outer periphery of the open portion 212 of the spiral annular steel pipe 210, and the plurality of clamping rings 270 are in frictional contact with the outer periphery of the anchor rope 120. This structural arrangement can consume a portion of the energy through the friction of the plurality of clamping rings 270 when the anchor rope 120 is suddenly tightened, thereby improving the overload protection capability of the spiral annular steel pipe 210.

[0050] Specifically, the clamping ring 270 in the present embodiment includes two semicircular rings, and connecting holes are opened on both ends of the two semicircular rings. The connecting holes can allow bolts to pass through. When the anchor rope 120 passes through the two ends of the spiral annular steel pipe 210 and the anchor rope 120 is wrapped around the outer periphery of the open part 212 of the spiral annular steel pipe 210, the two semicircular rings can be clamped on the outer periphery of the anchor rope 120 and the spiral annular steel pipe 210, and the connecting holes of the two semicircular rings are aligned. After the connecting holes are aligned, the bolts are inserted, and then the nuts are connected to the bolts to fix the two semicircular rings.

[0051] In a further embodiment, the two semicircular rings of the present invention are made of wear-resistant material, which may be stainless steel, carbon steel or aluminum alloy. The wear-resistant material can reduce the wear of the clamping ring 270, thereby extending the service life of the semicircular ring. The rough surface of the semicircular ring can increase the friction of the semicircular ring on the anchor rope 120, thereby further improving the overload protection capability of the spiral ring steel pipe 210.

[0052] Specifically, the fixing member in this embodiment is a fixing block 220 , which has two circular holes 221 . The two circular holes 221 are arranged in parallel, and the two ends of the spiral annular steel pipe 210 are respectively inserted into the two circular holes 221 and fixed in the circular holes 221 .

[0053] The specific working process of a rock slope protection device provided by the present invention is described in combination with the above embodiments:

[0054] Install:

[0055] After the protective frame 100 and the protective net 110 are connected, multiple anchor ropes 120 are connected, and the anchor ropes 120 are passed through one end of the spiral annular steel pipe 210, and the inserted anchor ropes 120 are wrapped around the outer periphery of the open part 212 of the spiral annular steel pipe 210, and then passed through the other end of the spiral annular steel pipe 210 and connected to the protective net 110, one end of the elastic member 250 is fixed on the anchor rope 120, and multiple clamps 270 are installed on the spiral annular steel pipe 210 to rub the upper part of the anchor rope 120 at the center of the spiral annular steel pipe 210 against the spiral annular steel pipe 210, and at the same time, multiple clamps 270 rub against the anchor rope 120 to complete the installation, and the threaded rod 240 is rotated to adjust the supporting force of the elastic member 250 on the anchor rope 120 to an appropriate force.

[0056] Work:

[0057] In the initial state, the rock slope does not slide or collapse, the protective net 110 is not impacted, and the spiral steel pipe of the pressure relief ring 200 is not deformed. Figure 5 As shown, the radius of the spiral ring steel pipe 210 is at its maximum state, and the elastic member 250 at this time also has the greatest support force on the anchor rope 120. When the rock slope slides or collapses, the protective net 110 intercepts the soil and stones and is impacted. At this time, the pressure relief ring 200 plays a buffering role. Fig. 9 As shown, after the anchor rope 120 is tightened, the spiral annular steel pipe 210 of the pressure relief ring 200 is deformed to reduce the impact, and the elastic member 250 is also compressed by the anchor rope 120, so that the spiral annular steel pipe 210 and the elastic member 250 jointly play a buffering role.

[0058] like Fig. 9 As shown, the radius of the spiral annular steel pipe 210 becomes smaller after being impacted and deformed (the radius becomes smaller to a lesser extent, Fig. 9 The radius change of the spiral annular steel pipe 210 shown is not obvious). The elastic coefficient of the spiral annular steel pipe 210 becomes larger after the radius becomes smaller, and it will become harder when it is hit next time, which is not conducive to buffering the anchor rope 120. Therefore, the threaded rod 240 is rotated to adjust the supporting force of the elastic member 250 on the anchor rope 120. Specifically, the threaded rod 240 is rotated to move toward the center of the spiral annular steel pipe 210, thereby weakening the supporting force of the elastic member 250 on the anchor rope 120. At this time, the buffering performance between the anchor rope 120 and the elastic member 250 is improved, thereby improving the overall buffering performance, which also adapts to the situation that the deformation of the spiral annular steel pipe 210 is not conducive to buffering the anchor rope 120. The overall buffering performance of the spiral annular steel pipe 210 and the elastic member 250 before and after each buffering is made as small as possible to ensure that the overload protection capacity fluctuates less, and the number of uses of the pressure relief ring 200 is increased as much as possible, thereby extending the overall service life of the geotechnical slope protection device.

[0059] The present invention also provides a rock and soil slope protection method, using the above-mentioned rock and soil slope protection device, which specifically includes the following steps:

[0060] S100: Survey the terrain to determine whether slope protection is needed;

[0061] Among them, in engineering construction, topographic survey is a key step in determining whether slope protection is needed. By surveying the slope, soil quality, hydrological conditions and surrounding environment, the stability and potential risks of the slope can be judged to determine whether protective measures are needed.

[0062] S200: Installation of geotechnical slope protection devices;

[0063] Among them, when slope protection is needed after investigation, geotechnical slope protection devices are installed in the area where slope protection is needed to play a protective role.

[0064] S300: Perform regular inspections. After each impact on the geotechnical slope protection device, the support strength of the elastic member 250 needs to be weakened.

[0065] Among them, regular inspections are required to ensure the normal operation of the geotechnical slope protection device. Every time a slope collapse or landslide occurs, the protection net 110 of the geotechnical slope protection device intercepts soil and stones, the protection net 110 is impacted, and the anchor rope 120 on the protection net 110 is tightened. The decompression ring 200 on the anchor rope 120 can buffer the protection net 110 to prevent the protection net 110 from being damaged by excessive pulling. After each use of the decompression ring 200, the threaded rod 240 is rotated to move the threaded rod 240 toward the center of the spiral annular steel pipe 210 to weaken the support force of the elastic member 250 on the anchor rope 120, thereby ensuring that the overload protection capacity of the decompression ring 200 is as close to the last time as possible when the protection net 110 is impacted next time. Increasing the number of uses of the decompression ring 200 can extend the overall service life of the geotechnical slope protection device.

[0066] The above description is only a specific implementation mode of the present invention, and various examples do not constitute a limitation on the essential content of the present invention.

Claims

1. A rock and soil slope protection device, characterized in that: include: A protection frame (100), the protection frame (100) being fixed near a slope, a protection net (110) being arranged on the protection frame (100), anchor ropes (120) being connected to the protection frame (100) at even intervals, the other ends of the anchor ropes (120) being connected to the protection net (110); A decompression ring (200), the decompression ring (200) comprising a spiral annular steel pipe (210) and a fixing piece, the spiral annular steel pipe (210) having overlapping portions (211) at both ends, the outer peripheral side walls of the spiral annular steel pipe (210) outside the overlapping portions (211) at both ends being open, the anchor rope (120) passing through one end of the spiral annular steel pipe (210) and being wound around the outer periphery of the spiral annular steel pipe (210) and passing through the other end, the fixing piece fixing the overlapping portions (211); A support component, wherein the support component is capable of supporting a portion of the anchor rope (120) wound around the outer circumference of the spiral annular steel pipe (210), and the support strength of the anchor rope (120) supported by the support component is positively correlated with the radius of the spiral annular steel pipe (210); The support assembly comprises a support plate (230) and a threaded rod (240); the support plate (230) is fixedly connected to the inner circumference of the spiral annular steel pipe (210); the support plate (230) is perpendicular to a line connecting an overlapping portion (211) of the spiral annular steel pipe (210) and the center of the spiral annular steel pipe (210); the threaded rod (240) is spirally connected to the middle position of the support plate (230) and is radially distributed along the spiral annular steel pipe (210); a through groove (213) is provided on the spiral annular steel pipe (210); an elastic member (250) is coaxially connected to the bottom of the threaded rod (240); the elastic member (250) passes through the through groove (213) and is fixedly connected to the anchor rope (120) to support the anchor rope (120); the threaded rod (240) moves radially along the spiral annular shape to push and pull the elastic member (250).

2. The rock and soil slope protection device according to claim 1 is characterized in that: A rotating ring (260) is provided at the connection position between the threaded rod (240) and the elastic member (250); the rotating ring (260) comprises an upper and a lower part, the upper and lower parts being capable of relatively rotating but not relatively moving axially; the upper part of the rotating ring (260) is fixedly connected to the threaded rod (240), and the lower part of the rotating ring (260) is fixedly connected to the elastic member (250).

3. The rock and soil slope protection device according to claim 1, characterized in that: The elastic member (250) is a compression spring.

4. The rock slope protection device according to claim 1, characterized in that: The support plate (230) is provided with a handle groove (231).

5. The rock slope protection device according to claim 1, characterized in that: A plurality of clamping rings (270) are detachably mounted on the outer periphery of the spiral annular steel pipe (210) close to the overlapping portion (211), and the plurality of clamping rings (270) are in frictional contact with the outer periphery of the anchor rope (120).

6. The rock slope protection device according to claim 5, characterized in that: The clamping ring (270) comprises two semicircular rings, and two ends of the two semicircular rings are detachably connected via a screw rod and a nut.

7. The rock slope protection device according to claim 6, characterized in that: The two semicircular rings are made of wear-resistant material.

8. The rock slope protection device according to claim 1, characterized in that: The fixing member comprises a fixing block (220), the fixing block (220) is provided with two circular holes (221), the two circular holes (221) are arranged in parallel, and the spiral annular steel pipe (210) is inserted into the two circular holes (221) and is fixed.

9. A method for protecting a rock slope, using the rock slope protection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S100: Survey the terrain to determine whether slope protection is needed; S200: Installation of geotechnical slope protection devices; S300: Check regularly. After each impact on the geotechnical slope protection device, the support strength of the elastic member (250) needs to be weakened.

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