Anti-skid device and method for installing the same

Abstract

The application discloses to the technical field of slope support construction, and particularly relates to an anti-sliding device and a mounting method thereof. The anti-sliding device comprises an anti-sliding rod body, a flexible rod body, hoop reinforcement, longitudinal reinforcement and a processor. The anti-sliding rod body is internally provided with a socket at one end in the length direction. A plurality of strip-shaped convex edges are arranged in a circle on the anti-sliding rod body. The strip-shaped convex edges are internally provided with grouting channels at one end in the length direction. A plurality of grouting openings are arranged along the length direction of the strip-shaped convex edges and are in communication with the grouting channels. The flexible rod body is inserted into the anti-sliding rod body. The flexible rod body is provided with a metal displacement sensing node. A plurality of hoop reinforcements are coaxially sleeved on the anti-sliding rod body and are arranged at intervals. Each hoop reinforcement penetrates the strip-shaped convex edge. The plurality of hoop reinforcements are connected through the longitudinal reinforcement. The processor is connected with the metal displacement sensing node and is used to obtain the strain of the pile body according to the feedback value of the metal displacement sensing node. The application can realize stress detection and has good anti-sliding performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slope support construction, in particular to an anti-sliding device and a mounting method thereof. BACKGROUND

[0002] A high and steep slope refers to a steep slope with a slope ratio greater than 1:1 and a slope greater than 45 degrees. It is often located in an area with unstable geological conditions and stratum structure, and is affected by natural factors such as wind, rain and snow for a long time. Therefore, it has hidden dangers such as landslides and collapses. Nowadays, with the development of underground mining and mountain tunnel projects, great pressure is exerted on high and steep slopes, which easily causes slope sliding and collapse accidents. Therefore, it is necessary to professionally manage and support high and steep slopes to minimize accidents and losses.

[0003] To reduce the safety hazards of high and steep slopes, a drilling anti-sliding pile is usually used to support high and steep slopes in actual engineering operations. The drilling anti-sliding pile is widely used in high and steep slope support. Its structural unit size is small, can be completed in a narrow construction space, is suitable for complex-shaped or narrow spaces, and can penetrate deep into the stratum to increase the anti-sliding capacity of the support pile and effectively prevent side sliding. However, in actual engineering, the traditional drilling anti-sliding pile is deeply buried in the rock mass, and its bending resistance is poor after being reinforced by concrete. It is difficult for the whole anti-sliding pile to deform, and it is difficult to effectively monitor the stress and bending moment of the pile body. Therefore, it is difficult to find signs of accidents and evaluate the stability and safety of the slope. SUMMARY

[0004] The present application provides an anti-sliding device and a mounting method thereof. The anti-sliding rod body is optimized to form an anti-sliding device with certain bending resistance after pouring concrete. A monitor that deforms with the bending of the anti-sliding rod body is arranged in the anti-sliding rod body to monitor the stress and bending moment of the anti-sliding device. The anti-sliding device formed by the concrete after setting has good anti-sliding performance to meet the slope support requirements.

[0005] The present application is realized by the following technical solutions:

[0006] In a first aspect, the present application provides an anti-sliding device, which comprises:

[0007] The anti-sliding rod body is provided with a plurality of strip-shaped convex ridges arranged in a circle and parallel to the length direction of the anti-sliding rod body. The strip-shaped convex ridges are provided with grouting channels opened inward from one end of the length direction. The strip-shaped convex ridges are further provided with a plurality of grouting openings arranged along the length direction of the strip-shaped convex ridges and communicating with the grouting channels from the side away from the insertion hole.

[0008] A flexible rod body is inserted into the anti-slide rod body, and a metal displacement sensing node is arranged on the flexible rod body;

[0009] A plurality of hoop stirrups are coaxially sleeved on the anti-slide rod body and are arranged at intervals, and each hoop stirrup penetrates the strip-shaped convex rib;

[0010] A plurality of longitudinal steel bars are connected by the hoop stirrups;

[0011] A processor is connected to the metal displacement sensing node and used to obtain the strain of the pile body according to the feedback value of the metal displacement sensing node.

[0012] In some optional embodiments of the first aspect, a groove with an extension direction parallel to the length direction of the strip-shaped convex rib is arranged on the side of the strip-shaped convex rib away from the insertion hole, and each grouting port is in communication with the groove.

[0013] In some optional embodiments of the first aspect, the cross section of the groove is in the shape of a circular arc.

[0014] In some optional embodiments of the first aspect, a displacement monitoring instrument is further included, a detection end of the displacement monitoring instrument is connected to one end of the anti-slide rod body, and the displacement monitoring instrument is used to be installed on one side of the pile hole.

[0015] In some optional embodiments of the first aspect, the number of displacement monitoring instruments is two, and the displacement monitoring instruments are respectively used to be installed on opposite sides of the pile hole.

[0016] In some optional embodiments of the first aspect, the displacement monitoring instrument includes:

[0017] A dial has scales thereon;

[0018] A gear is rotationally connected to the dial, and a pointer is arranged on the gear to rotate with the gear and point to different scales;

[0019] A cable body is connected to the anti-slide rod body at one end thereof;

[0020] An elastic member is arranged on the dial;

[0021] The other end of the cable body is connected to the elastic member by passing around the gear, and the elastic member stores elastic potential energy in an initial state to make the cable body in a tensioned state.

[0022] In some optional embodiments of the first aspect, an adjusting rod is further arranged on the dial to slide, and the other end of the cable body is connected to the elastic member by passing around the adjusting rod and the gear in sequence.

[0023] In some optional embodiments of the first aspect, the metal displacement sensing nodes are multiple and are arranged at intervals along the length direction of the flexible rod body.

[0024] In some optional embodiments of the first aspect, the side wall of the strip-shaped protrusion in the circumferential direction of the anti-slide rod body forms an angle with the outer wall of the anti-slide rod body.

[0025] In the second aspect, the application provides a method for installing the anti-slide device of the first aspect on a slope to support the slope, which comprises the following steps:

[0026] installing the metal displacement sensing nodes on the flexible rod body and inserting the flexible rod body into the insertion hole of the anti-slide rod body;

[0027] keeping the flexible rod body relatively fixed with the anti-slide rod body so that the flexible rod body deforms along with the bending of the anti-slide rod body;

[0028] spacedly arranging the perforations along the length direction of the strip-shaped protrusion and sequentially passing one end of the hoop-shaped stirrup through the perforations on the strip-shaped protrusion along the circumference of the anti-slide rod body, welding the one end of the hoop-shaped stirrup with the other end and welding the longitudinal steel bars with each hoop-shaped stirrup;

[0029] inserting the anti-slide rod body into the pre-excavated pile hole and making each strip-shaped protrusion abut against the hole wall of the pile hole;

[0030] pouring concrete between the adjacent two strip-shaped protrusions;

[0031] after the concrete between the adjacent two strip-shaped protrusions is solidified, pouring concrete into the grouting channel.

[0032] Compared with the prior art, the application has the following advantages and beneficial effects:

[0033] The anti-skid device and the installation method thereof provided by the application have the following advantages: after the anti-skid rod body is driven into the pile hole, the concrete poured outside the anti-skid rod body has certain discontinuity due to the strip-shaped convex edges, the concrete between the strip-shaped convex edges has certain bending resistance after being solidified, the flexible rod body in the insertion hole can deform correspondingly when the whole anti-skid device is subjected to bending stress, so that the metal displacement sensing node on the flexible rod body is displaced, and the relative position of the metal displacement sensing node and the anti-skid rod body is unchanged, thus the stress borne by the whole anti-skid device can be effectively monitored, and the accuracy of the monitoring result can be ensured due to the unchanged relative position of the metal displacement sensing node in the anti-skid rod body; and the grouting channel and the grouting port on the strip-shaped convex edge can provide a small flow cross section for the poured concrete, so that the concrete slurry at the grouting port has a large flow rate and pressure, and the concrete slurry is more easily poured into the cracks in the wall of the pile hole, thus the combination stability of the anti-skid device and the slope is improved, and the anti-skid performance of the anti-skid device is ensured; meanwhile, the deformation sensitivity of the anti-skid device is also improved after the combination stability of the anti-skid device and the slope is improved, and the accuracy of the monitoring result of the stress borne by the anti-skid device is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the example embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be considered as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0035] Figure 1 The anti-skid device structure schematic diagram provided by the embodiment of the application;

[0036] Figure 2 The anti-skid device structure schematic diagram provided by the embodiment of the application;

[0037] Figure 3 The anti-skid rod body cross section structure schematic diagram provided by the embodiment of the application;

[0038] Figure 4 The comprehensive data reading machine amplification schematic diagram provided by the embodiment of the application;

[0039] Figure 5 The displacement monitoring instrument schematic diagram provided by the embodiment of the application;

[0040] Figure 6 The anti-skid rod body three-dimensional schematic diagram provided by the embodiment of the application;

[0041] Figure 7The anti-skid device installation three-dimensional schematic view provided by the embodiment of the present application.

[0042] Markings in the drawings and corresponding component names:

[0043] 1 - rock mass, 2 - pile hole, 3 - anti-skid rod body, 4 - grouting channel, 5 - fissure, 6 - grouting port, 7 - metal displacement sensing node, 8 - displacement monitor, 9 - sleeve, 10 - bolt rod, 11 - steel strand, 12 - eye bolt A, 13 - stress monitoring system, 14 - displacement sensor, 15 - flexible rod body, 16 - lead wire, 17 - comprehensive data reading machine, 18 - processor, 19 - pointer, 20 - eye bolt B, 21 - cable body, 22 - elastic member, 23 - moving bolt, 24 - adjusting slide, 25 - eye bolt C, 26 - gear, 27 - dial, 28 - display instrument A, 29 - display instrument B, 30 - display instrument C, 31 - parameter inputter, 32 - data line, 33 - hoop stirrup, 34 - longitudinal reinforcement, 35 - concrete, 36 - groove, 37 - perfusion cavity, 38 - strip-shaped convex rib. DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application in combination with embodiments and drawings, the illustrative embodiments of the present application and the description thereof are only used to explain the present application, and do not limit the present application.

[0045] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without these specific details. In other instances, well-known structures, circuits, materials or processes have not been described in detail in order to avoid obscuring the present application.

[0046] Throughout the specification, the mention of “one embodiment”, “an embodiment”, “one example” or “an example” means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present application. Therefore, the phrases “one embodiment”, “an embodiment”, “one example” or “an example” appearing in various places throughout the specification are not necessarily all referring to the same embodiment or example. In addition, specific features, structures, or characteristics can be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale. The term “and / or” used herein includes any and all combinations of one or more of the associated listed items.

[0047] In the description of this invention, the terms "front," "rear," "left," "right," "up," "down," "vertical," "horizontal," "high," "low," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0048] Firstly, such as Figures 1-7 As shown, this embodiment of the invention provides an anti-slip device, which includes an anti-slip rod 3, a flexible rod 15, circumferential stirrups 33, longitudinal reinforcing bars 34, and a processor 18. The anti-slip rod 3 has an insertion hole extending inward from one end along its length. The anti-slip rod 3 also has multiple circumferentially arranged strip-shaped protrusions 38 whose length direction is parallel to the length direction of the anti-slip rod 3. Each strip-shaped protrusion 38 has a grouting channel 4 extending inward from one end along its length. The strip-shaped protrusion 38 also has multiple grooving channels 4 extending along its length from the side away from the insertion hole. A grouting port 6 is formed by the longitudinal arrangement of strip-shaped protrusions 38 and the connection with the grouting channel 4; a flexible rod 15 is inserted into the anti-slip rod 3, and a metal displacement sensing node 7 is provided on the flexible rod 15; multiple circumferential stirrups 33 are coaxially sleeved on the anti-slip rod 3 and arranged at intervals, and each circumferential stirrup 33 passes through the strip-shaped protrusions 38; multiple circumferential stirrups 33 are connected by longitudinal steel bars 34; a processor 18 is connected to the metal displacement sensing node 7 and is used to obtain the strain of the pile body according to the feedback value of the metal displacement sensing node 7.

[0049] In actual implementation, the anti-skid rod body 3 can be provided as a cylinder, and a socket is coaxially arranged on an end face of the anti-skid rod body 3. The cross-sectional shape of the socket can not be limited, and can be, for example, rectangular, square, circular, star-shaped, etc. Considering the convenience of processing, the cross-sectional shape of the socket can be preferably provided as a circular shape, and the socket with the shape can also bring operation convenience for inserting the flexible rod body 15. The length of the strip-shaped convex rib 38 on the anti-skid rod body 3 can be equal to that of the anti-skid rod body 3, that is, the strip-shaped convex ribs 38 divide the outer surface of the anti-skid rod body 3 into several parts. When the anti-skid rod body 3 is inserted into the pile hole 2, two adjacent strip-shaped convex ribs 38 can surround the hole wall of the pile hole 2 to form a pouring cavity 37 for pouring the concrete 35. After the poured concrete 35 is solidified, the concrete 35 can strongly bond the anti-skid rod body 3 and the hole wall of the pile hole 2. Of course, the solidified concrete 35 no longer has high continuity, and the concrete 35 is also prone to breaking when the anti-skid device bears a large bending moment. Therefore, after the hoop reinforcement 33 is sleeved on the anti-skid rod body 3 and the longitudinal reinforcement is arranged, the bending resistance of the concrete 35 can be enhanced to prevent the solidified concrete 35 from being easily broken when the anti-skid rod body 3 is bent. Meanwhile, the arrangement of the hoop reinforcement 33 and the longitudinal reinforcement 34 can also enhance the connection stability of the concrete 35 and the anti-skid rod body 3, thereby ensuring the anti-skid performance of the anti-skid device. The length of the grouting channel 4 on the strip-shaped convex rib 38 can be equal to that of the strip-shaped convex rib 38, that is, the grouting channel 4 is provided in a perforated structure. In this way, when the concrete 35 is poured into the grouting channel 4, the concrete 35 can reach the end of the anti-skid rod body 3 to further improve the bonding stability between the anti-skid rod body 3 and the hole wall of the pile hole 2. The cross-sectional shape of the grouting channel 4 can not be limited, and can be, for example, square, circular, triangular, star-shaped, etc. Since the grouting channel 4 is located on the strip-shaped convex rib 38, the cross-sectional area of the grouting channel 4 is small. Therefore, the grouting channel 4 can be provided as a circular perforation to facilitate processing, while ensuring the smoothness of the flow of the concrete 35 in the grouting channel 4. The shape and size of the grouting port 6 connected with the grouting channel 4 can be the same as those of the grouting channel 4, that is, the grouting port 6 is also provided as a circular perforation. On the premise that the concrete 35 can flow out of the grouting port 6, the angle between the axis of the grouting port 6 and the axis of the grouting channel 4 can be theoretically any value within the range of 0-90°. Of course, the smaller the angle between the axis of the grouting port 6 and the axis of the grouting channel 4, the greater the length of the anti-skid rod body 3 required. In actual construction, the length of the anti-skid rod body 3 is not unlimitedly prolonged. Therefore, the angle between the axis of the grouting port 6 and the axis of the grouting channel 4 can be preferably set to 45-90°, and more preferably, the angle between the axis of the grouting port 6 and the axis of the grouting channel 4 is 90°, that is, the grouting channel 4 and the grouting port 6 are perpendicular to each other. In this way, the length of the grouting port 6 can be the shortest to enable the concrete 35 to quickly flow out of the grouting port 6.As described above, the adhesion area between the concrete 35 and the hole wall of the pile hole 2 is reduced after being divided by the strip-shaped convex ridge 38, but since the grouting port 6 and the grouting channel 4 have a small flow cross-sectional area, and the grouting port 6, the crack 5 of the pile hole 2 and the grouting channel 4 form a relatively sealed space, the concrete 35 slurry in the grouting channel 4 and the grouting port 6 has a relatively large pressure, so the concrete 35 in the grouting port 6 can quickly enter the crack 5 of the pile hole 2 and can diffuse in a large range under the action of hydraulic pressure, that is, the relative stability between the anti-slide rod body 3 and the hole wall of the pile hole 2 can be ensured by the concrete 35 in the crack 5 diffused in a wider range at the position of the hole wall of the pile hole 2 corresponding to the strip-shaped convex ridge 38, so that the anti-slide device as a whole has good anti-slide performance. The cross-sectional area of the flexible rod body 15 is less than or equal to the cross-sectional area of the insertion hole, and the cross-sectional shape of the flexible rod body 15 can not be limited, which can be, for example, circular, square, triangular, star-shaped, etc. Considering the stability of the flexible rod body 15 when it is bent, that is, the bending direction of the flexible rod body 15 is stable when it is bent in the same direction, the cross-sectional area of the flexible rod body 15 is preferably circular. The flexible rod body 15 is coaxially inserted into the insertion hole, and the cross-sectional area of the flexible rod body 15 can be smaller than the cross-sectional area of the insertion hole, as long as the relative fixation between the flexible rod body 15 and the hole wall of the insertion hole is ensured. For example, a plurality of abutting columns can be provided on the flexible rod body 15, and when the flexible rod body 15 is inserted into the insertion hole, the plurality of abutting columns are in contact with the hole wall of the insertion hole at the same time to enable the flexible rod body 15 to bend along with the bending of the anti-slide rod body 3, thereby ensuring the sensitivity of the flexible rod body 15 to the bending of the anti-slide rod body 3. Of course, during the bending process of the flexible rod body 15, some abutting columns may be separated from the hole wall of the insertion hole. Therefore, the cross-sectional shape of the flexible rod body 15 is preferably the same as the cross-sectional shape of the insertion hole, and only a mounting groove for the metal displacement sensing node 7 needs to be reserved on the flexible rod body 15. The metal displacement sensing node 7 is connected to the stress monitoring system 13 through the wire 16, and the processor 18 in the stress monitoring system 13 can be connected to one end of the flexible rod body 15. When the anti-slide rod body 3 is driven into the pile hole 2, the processor 18 is just located outside the pile hole 2. The processor 18 can configure a display instrument A 28 through a data line 32 to display the detection results of the metal displacement sensing node 7. The metal displacement sensing node 7 can detect the position change of the node through its own displacement sensor 14 and transmit the detection results to the processor 18. The processor 18 can process the detection results to obtain processed stress data and bending moment data based on the formula ε = Δl / l, the formula σ = E*ε and the formula σ = M / Wz, and then display the data through the display instrument B 29 and the display instrument C 30. When the stress and the bending moment exceed the set threshold value, the processor 18 can give a warning through the comprehensive data reader 17 configured therefor. The processor 18 can also be configured with a parameter inputter 31 to manually input different parameters according to the selection of different materials.

[0050] The anti-skid device provided by the embodiments of the present application is combined by the anti-skid rod body 3, the hoop stirrup 33 and the longitudinal steel bar 34, so that the structure formed after the cast-in-place concrete 35 has certain bending resistance, thereby realizing stress monitoring of the whole anti-skid device. In addition, due to the structural arrangement of the anti-skid rod body 3, the bonding area of the concrete 35 and the pile hole 2 is reduced. Therefore, by arranging the grouting channel 4 and the grouting port 6, the concrete 35 in the fissure 5 with a wider diffusion and larger volume is used to compensate for the bonding stability sacrificed due to the reduction of the bonding area of the concrete 35 and the pile hole 2, so as to ensure that the anti-skid device has good anti-skid performance on the basis of realizing stress monitoring.

[0051] Since the cross-sectional area of the grouting port 6 is small, the hole wall area of the pile hole 2 corresponding to the grouting port 6 is small. If it is necessary to ensure that the concrete 35 enters as many fissures 5 as possible, the number of grouting ports 6 needs to be increased. However, this will affect the structural strength of the anti-skid rod body 3 itself, and the processing procedure is increased. Therefore, in some optional embodiments, a recess 36 extending in a direction parallel to the length direction of the strip-shaped convex rib 38 is arranged on the side of the strip-shaped convex rib 38 away from the insertion hole. Each grouting port 6 is in communication with the recess 36.

[0052] It can be understood that the groove bottom area of the recess 36 is greater than the cross-sectional area of the grouting port 6, which is equivalent to expanding the contact area between the concrete 35 flowing out of the grouting port 6 and the hole wall of the pile hole 2 through the recess 36. In this way, it can be ensured that the concrete 35 enters more fissures 5. Of course, the number of recesses 36 on the strip-shaped convex rib 38 can be set to be the same as that of the grouting ports 6, that is, each grouting port 6 is in communication with one recess 36. The number of recesses 36 on the strip-shaped convex rib 38 can also be set to be one, and all grouting ports 6 on one strip-shaped convex rib 38 are in communication with the recess 36. This arrangement can reduce the processing procedure and reduce the manufacturing cost. In addition, the hole wall area of the pile hole 2 corresponding to the recess 36 is larger, so that the concrete 35 can enter more fissures 5.

[0053] In some optional embodiments, when the number of recesses 36 on the strip-shaped convex rib 38 is one, the recess 36 can be pulled to the both ends in the length direction, that is, the recess 36 is in communication with the space outside the pile hole 2 after the anti-skid rod body 3 is driven into the pile hole 2. In this way, the construction personnel can directly observe and measure the volume change amount and the volume change rate of the concrete 35 slurry in the recess 36 during the grouting process, so as to facilitate the construction personnel to roughly judge the fullness of the concrete 35 in the fissure 5 in combination with the grouting pressure, thereby providing a basis for the construction personnel to adjust the grouting pressure, and improving the construction convenience and the construction efficiency.

[0054] When the groove 36 is arranged on the strip-shaped convex ridge 38, the shape of the groove 36 determines the shape of the condensed concrete 35 in the groove 36, and the bonding surface between the groove 36 and the concrete 35 affects the stress of the structure of the concrete 35 at the bonding position between the concrete 35 and the hole wall of the pile hole 2. For example, when the bonding surface between the groove 36 and the concrete 35 is in the radial direction of the anti-slide rod body 3, if the anti-slide rod body 3 is affected by the rock mass 1, such as creep, interlayer dislocation, etc., and tends to rotate, the force of the anti-slide rod body 3 on the concrete 35 in the tangential direction of the groove 36 (the tangential direction is the tangential direction of the anti-slide rod body 3) will be transmitted to the structure at the bonding position between the concrete 35 and the hole wall of the pile hole 2, and the structure will bear a large shear force and be broken, thereby affecting the relative stability between the anti-slide device and the hole wall of the pile hole 2. Therefore, in some optional embodiments, the side wall of the groove 36 is not parallel to the radial direction of the anti-slide rod body 3, so that when the anti-slide rod body 3 tends to rotate, the force of the anti-slide rod body 3 on the concrete 35 is decomposed into radial and tangential directions, thereby reducing the shear strength of the structure at the bonding position between the concrete 35 and the hole wall of the pile hole 2, and reducing the risk of breaking of the structure at the bonding position. Preferably, the cross section of the groove 36 can be arranged in a circular arc shape, that is, the bottom surface of the groove 36 is a curved surface, so that the sharp edge structure can be reduced, the bonding between the concrete 35 and the groove 36 can be facilitated, the hollow structure can be reduced, and the bearing capacity can be ensured.

[0055] In some optional embodiments, the anti-slide device can further include a displacement monitor 8, a detection end of the displacement monitor 8 is connected to one end of the anti-slide rod body 3, and the displacement monitor 8 is used to be installed on one side of the pile hole 2. When the displacement monitor is installed, the sleeve 9 can be first fixed in the rock mass 1, then the bolt rod 10 is threadedly connected with the sleeve 9, and the bolt rod 10 is fixedly connected with the displacement monitor 8. Through the arrangement of the displacement monitor 8, the displacement of the anti-slide device in the radial direction of the anti-slide rod body 3 can be measured; the number of the displacement monitor 8 can be two and be installed on opposite sides of the pile hole 2, so that when the anti-slide rod body 3 is radially displaced, the structures measured by the two displacement monitors 8 can be verified with each other, and the accuracy of the measurement result can be ensured.

[0056] The displacement monitor 8 can specifically include a scale disc 27, a gear 26, a cable body 21 and an elastic member 22; the scale disc 27 has scales; the gear 26 is rotationally connected with the scale disc 27, the gear 26 is provided with a pointer 19 rotating therewith to point to different scales; one end of the cable body 21 is connected with the anti-slide rod body 3 through the steel strand 11; the elastic member 22 is arranged on the scale disc 27; wherein the other end of the cable body 21 is connected with the elastic member 22 by passing around the gear 26, and in the initial state, the elastic member 22 stores elastic potential energy to make the cable body 21 in a tension state.

[0057] In the embodiment of the present application, the cable body 21 can also be configured as a steel strand. The steel strand has low tensile property, which can ensure that the displacement of the anti-slide rod body 3 is basically converted into the rotation of the gear 26, that is, the accuracy of the measurement result can be improved. One end of the cable body 21 can be connected to the anti-slide rod body 3 through a lifting ring bolt A12, and a lifting ring bolt B20 can be arranged on the dial 27 for the cable body 21 to be arranged around. The elastic member 22 can be configured as a spring. One end of the elastic member 22 can be connected to the dial 27 through a lifting ring bolt C25, and the other end is connected to the other end of the cable body 21. The cable body 21 is initially in a tension state. When the anti-slide rod body 3 has radial displacement, the cable body 21 is driven to move. Since the other end of the cable body 21 is connected to the elastic member 22, the cable body 21 can drive the gear 26 to rotate, and the gear 26 drives the pointer 19 to move to indicate different scales.

[0058] In some optional embodiments, an adjusting rod is also arranged on the dial 27 to slide. The other end of the cable body 21 is connected to the elastic member 22 in sequence through the adjusting rod and the gear 26.

[0059] Specifically, the adjusting rod can be in sliding connection with the adjusting slide. The adjusting rod can be configured as a moving bolt 23. The moving bolt is in cooperation with the adjusting slide 24 through threads. The adjusting slide 24 is fixedly connected to the dial 27. When the adjusting rod is adjusted at different positions of the adjusting slide 24, on the one hand, the initial tension state of the cable body 21 can be ensured, and on the other hand, the initial position of the pointer 19 can be adjusted. For example, when the pointer 19 needs to indicate the readings in the clockwise and counterclockwise directions, the position of the pointer 19 can be changed to make the pointer 19 initially indicate the middle position of the scale.

[0060] In some optional embodiments, the plurality of metal displacement sensing nodes 7 are arranged along the length direction of the flexible rod body 15. The arrangement of the plurality of metal displacement sensing nodes 7 can monitor each shaft section in the length direction of the anti-slide device, which can facilitate the staff to analyze the overall state of the anti-slide device.

[0061] In some optional embodiments, the side wall of the strip-shaped protrusion 38 in the circumferential direction of the anti-slide rod body 3 forms an angle with the outer wall of the anti-slide rod body 3. In this way, when the anti-slide rod body 3 is about to rotate, the force of the strip-shaped protrusion 38 on the concrete 35 between the two strip-shaped protrusions 38 can be decomposed into tangential and radial forces, thereby reducing the shear strength of the concrete 35 between the two strip-shaped protrusions 38 and the hole wall of the pile hole 2, and further ensuring the anti-slide performance of the overall anti-slide device.

[0062] In a second aspect, the embodiment of the present application provides a mounting method of the anti-slide device, which is used for mounting the anti-slide device of the first aspect on a slope to achieve slope support. The mounting method comprises the following contents:

[0063] The metal displacement sensing node 7 is installed on the flexible rod 15 and the flexible rod 15 is inserted into the insertion hole of the anti-slide rod 3;

[0064] The flexible rod 15 is kept relatively fixed with the anti-slide rod 3 so that the flexible rod 15 deforms with the bending of the anti-slide rod 3;

[0065] Perforations are arranged along the length direction of the strip-shaped protrusions 38 and the one end of the hoop reinforcement 33 is sequentially passed through the perforations on the strip-shaped protrusions 38 along the circumference of the anti-slide rod 3, and the one end and the other end of the hoop reinforcement 33 are welded and the longitudinal reinforcement 34 is welded with each hoop reinforcement 33;

[0066] The anti-slide rod 3 is inserted into the pre-excavated pile hole 2 and each strip-shaped protrusion 38 abuts against the hole wall of the pile hole 2;

[0067] The concrete 35 is poured between the adjacent two strip-shaped protrusions 38;

[0068] After the concrete 35 between the adjacent two strip-shaped protrusions 38 is solidified, the concrete 35 is poured into the grouting channel 4.

[0069] The above detailed description further explains the purpose, technical scheme and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An anti-skid device characterized by, The utility model relates to a kind of anti-skid rod body (3), the anti-skid rod body (3) is opened with insertion hole from length direction one end inside, the anti-skid rod body (3) is further provided with multiple strip-shaped convex edges (38) being arranged in circle and length direction being parallel with the length direction of the anti-skid rod body (3), strip-shaped convex edge (38) is opened with grouting passage (4) from length direction one end inside, strip-shaped convex edge (38) is further opened with several grouting mouth (6) on the side away from the insertion hole of strip-shaped convex edge (38) and being arranged along the length direction of strip-shaped convex edge (38) and being communicated with grouting passage (4);Flexible rod body (15), flexible rod body (15) is inserted in the anti-skid rod body (3), and flexible rod body (15) is provided with metal displacement sensing node (7);Annular stirrup (33), multiple annular stirrups (33) are coaxially sleeved on the anti-skid rod body (3) and are spaced apart, and each annular stirrup (33) penetrates strip-shaped convex edge (38);Longitudinal reinforcement (34), multiple annular stirrups (33) are connected by longitudinal reinforcement (34);Processor (18), processor (18) is connected with metal displacement sensing node (7) and is used to obtain the strain of pile body according to the feedback value of metal displacement sensing node (7);Displacement monitor (8), the detection end of displacement monitor (8) is connected to one end of the anti-skid rod body (3), and displacement monitor (8) is used to be installed on one side of pile hole (2);Wherein, the displacement monitor (8) includes: dial (27), the dial (27) has scale on it;Gear (26), gear (26) is rotatably connected to dial (27), and gear (26) is provided with pointer (19) rotating therewith to point to different scale;Cable body (21), one end of cable body (21) is connected with the anti-skid rod body (3);Elastic member (22), elastic member (22) is arranged on the dial (27);Wherein, the other end of cable body (21) passes through gear (26) and is connected with elastic member (22), and in initial state, elastic member (22) stores elastic potential energy to make cable body (21) be in tension state. The side of strip-shaped convex edge (38) away from the insertion hole is provided with recess (36) with extension direction being parallel to the length direction of strip-shaped convex edge (38), and each grouting mouth (6) is communicated with recess (36). The cross section of the recess (36) is circular arc shape. The number of displacement monitors (8) is two and is used to be installed on opposite sides of pile hole (2) respectively. The dial (27) is further provided with adjusting rod slidingly, and the other end of cable body (21) is sequentially connected with elastic member (22) by passing through adjusting rod and gear (26). The number of metal displacement sensing nodes (7) is multiple and is spaced apart along the length direction of flexible rod body (15). The side wall of strip-shaped convex edge (38) in the circumferential direction of the anti-skid rod body (3) forms an angle with the outer wall of the anti-skid rod body (3). ​ ​ ​ ​ ​ ​ 2. The anti-skid device according to claim 1, wherein ​ 3. The anti-skid device according to claim 2, wherein ​ 4. The anti-skid device according to claim 1, wherein ​ 5. The anti-skid device according to claim 1, wherein ​ 6. The anti-skid device according to claim 1, wherein ​ 7. The anti-skid device according to claim 1, wherein ​ 8. A method of installing an anti-skid device, characterized by, The anti-skid device based on any one of claims 1-7 comprises the following steps: installing the metal displacement sensing node (7) on the flexible rod (15) and inserting the flexible rod (15) into the insertion hole of the anti-skid rod (3); fixing the flexible rod (15) relative to the anti-skid rod (3) to make the flexible rod (15) deform with the bending of the anti-skid rod (3); spacedly arranging perforations along the length direction of the strip-shaped convex edges (38), and making one end of the hoop-shaped stirrup (33) pass through the perforations on the strip-shaped convex edges (38) along the circumference of the anti-skid rod (3) in sequence, and welding the one end of the hoop-shaped stirrup (33) with the other end and welding the longitudinal steel bars (34) with each hoop-shaped stirrup (33); inserting the anti-skid rod (3) into the pre-excavated pile hole (2) and making each strip-shaped convex edge (38) abut against the hole wall of the pile hole (2); pouring concrete (35) between the adjacent two strip-shaped convex edges (38); after the concrete (35) between the adjacent two strip-shaped convex edges (38) is solidified, pouring concrete (35) into the grouting channel (4).

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