A support system for strengthening thick deposit slopes using prestressed self-locking rotary spray expansion bodies

Abstract

The present invention relates to the technical field of support systems, specifically to a support system for reinforcing the slope of a thick deposit body with a prestressed self-locking rotary grouting expansion body, comprising a relatively stable deposit body layer, a loose deposit body is piled up at the front end of the relatively stable deposit body layer, and a plurality of internal anchoring sections are arranged in the relatively stable deposit body layer in equal intervals from top to bottom. The present application effectively controls the distribution of prestress in loose soil by combining a prestressed self-locking device with a rotary grouting expansion body anchoring technology, significantly reduces the prestress loss caused by soil compression, and at the same time utilizes the expansion technology to reduce the length of the anchor cable and the dependence on deep bedrock, simplifying the construction process and reducing costs; its application is not limited to a specific type of soil or geological conditions, and it combines the advantages of the two technologies, so that it can adapt to a wider range of environments and conditions, from slightly loose to moderately and severely loose deposit bodies, the present invention can provide an effective reinforcement solution.

Description

Technical Field

[0001] The invention relates to the technical field of support systems, and in particular to a support system for reinforcing a thick-layer accumulation body slope with a prestressed self-locking rotary spray expansion body. Background Art

[0002] Thick loose deposit slopes usually contain a mixture of soil and gravel, with a loose structure and often in a critical stability state. In this state, even minor engineering construction or environmental changes may cause disturbances in the slope structure, leading to severe geological disasters such as cracking, disintegration, and even landslides. These disasters not only threaten the safety of infrastructure, but may also cause casualties and significant economic losses.

[0003] Currently, the common method of reinforcing such slopes includes the use of anchor cable systems. However, traditional anchor cable reinforcement technology has significant limitations. In particular, friction anchor cables require an extra-long free section in the bedrock to achieve anchoring, which not only increases the difficulty and cost of construction, but also has extremely low efficiency in transferring prestress inside the soil. The effective transfer of prestress is crucial to ensure the reinforcement effect, but in loose accumulations, excessive prestress often leads to soil compression, which in turn causes a significant loss of prestress and weakens the reinforcement effect.

[0004] In view of these limitations of existing technologies, it is urgent to develop a new slope reinforcement technology that can effectively shorten the length of the anchor cable and enhance the propagation capacity of the prestress in the loose accumulation body, so as to reduce the prestress loss and improve the reinforcement effect. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a support system for reinforcing the slope of a thick deposit body with a prestressed self-locking rotary spray expansion body.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A support system for reinforcing the slope of a thick layer of accumulation body with a prestressed self-locking rotary spray expansion body, comprising a relatively stable accumulation body layer, a loose accumulation body being piled up at the front end of the relatively stable accumulation body layer, a plurality of inner anchoring sections being arranged in sequence and at equal intervals from top to bottom in the relatively stable accumulation body layer, a pressure plate assembly being arranged in the inner anchoring section, the pressure plate assembly being composed of a first pressure plate, a second pressure plate and a third pressure plate, the first pressure plate, the second pressure plate and the third pressure plate being jointly provided with an enlarged head, a prestressed steel strand assembly being jointly penetrated through the enlarged head and the pressure plate assembly therein, an outer anchoring section being arranged at one end of the prestressed steel strand assembly, the outer anchoring section being composed of an outer anchor head assembly and a self-locking device assembly, the prestressed self-locking device assembly being composed of a first self-locking pipe fitting and a second self-locking pipe fitting, the outer anchor head assembly and the first self-locking pipe fitting and the second self-locking pipe fitting being successively fixed to one end of the prestressed steel strand assembly from left to right, the outer anchor head assembly being located on one side of the relatively stable accumulation body layer, the outer anchor head The assembly is in conflict with one side of a relatively stable accumulation body layer, and a potential sliding surface is provided in the relatively stable accumulation body layer. The external anchoring section extends into the potential sliding surface, and multiple external anchor head assemblies are all located in the loose accumulation body; a drainage ditch is provided on one side of the upper end of the relatively stable accumulation body layer, and the drainage ditch is located at the upper end of the potential sliding surface, and a drainage ditch is provided on one side of the lower end of the loose accumulation body; a casting pipe is commonly penetrated through the external anchor head assembly, the prestressed self-locking device assembly and the pressure plate assembly; the prestressed steel strand assembly consists of a first steel strand, a second steel strand and a third steel strand, and the external anchor head assembly consists of a disc, three fastening nuts, three clamping bolts and a clamping disc; the first steel strand is connected to the first pressure plate, the second steel strand is connected to the second pressure plate, and the third steel strand is connected to the third pressure plate, and the first self-locking pipe fitting and the second self-locking pipe fitting are both provided with self-locking mechanisms, and the second steel strand and the third steel strand are respectively connected to two self-locking mechanisms.

[0008] Compared with the prior art, the present invention effectively controls the distribution of prestress in loose soil by combining the prestressed self-locking device with the rotary grouting expansion anchoring technology, significantly reduces the prestress loss caused by soil compression, and at the same time uses the expansion technology to reduce the length of the anchor cable and the dependence on deep bedrock, simplifying the construction process and reducing costs; its application is not limited to a specific type of soil or geological conditions, and it combines the advantages of the two technologies to enable it to adapt to a wider range of environments and conditions. From slightly loose to moderately loose accumulations, the present invention can provide an effective reinforcement solution;

[0009] The self-locking mechanism can effectively fix the positions of the first steel strand, the second steel strand and the third steel strand in the first self-locking pipe fitting and the second self-locking pipe fitting when the first steel strand, the second steel strand and the third steel strand are pulled, so as to straighten the first steel strand, the second steel strand and the third steel strand. At the same time, the external anchor head assembly facilitates the full fixation of the first steel strand, the second steel strand and the third steel strand at one end to avoid loosening. During actual production and preparation, the second steel strand is controlled to be locked by the self-locking mechanism in the first self-locking pipe fitting, and the third steel strand is locked by the self-locking mechanism in the second self-locking pipe fitting.

[0010] Preferably, the self-locking mechanism includes two vertical plates respectively fixed in the first self-locking pipe fitting and the second self-locking pipe fitting, the vertical plate is provided with a positioning mechanism, the positioning mechanism is provided with a fixed plate, the fixed plate is fixed with a limit rod, and a slide is slidably mounted on the limit rod, the second steel strand and the third steel strand respectively penetrate the two slides in the first self-locking pipe fitting and the second self-locking pipe fitting, two double-rod bracket assemblies are installed on the side close to the slide and the fixed plate, one end of the two double-rod bracket assemblies are installed with a conical piece, and a tension spring is commonly fixed between the conical piece and the slide, the two conical pieces located on one side of the same slide form a group, the second steel strand and the third steel strand respectively penetrate the two groups of conical pieces, the two clamping rods connected to the same slide form a group, the second steel strand and the third steel strand respectively penetrate the two groups of clamping rods, and the first steel strand, the second steel strand and the third steel strand all penetrate the fixed plate and the vertical plate.

[0011] Furthermore, during actual production and preparation, the first steel strand, the second steel strand and the third steel strand are composed of multiple steel wires intertwined with each other, and their surfaces are provided with annular grooves. One side of the conical member is inclined, and the other side of the conical member can interfere with the corresponding first steel strand, the second steel strand and the third steel strand. When the first steel strand, the second steel strand and the third steel strand are pulled to straighten, the clamping rod will be driven to rotate toward the direction of the slide board. As the clamping rod rotates, the two clamping rods can be rotated toward a straight line, so that the two clamping rods can clamp the corresponding first steel strand, the second steel strand and the third steel strand, and the first steel strand, the second steel strand and the third steel strand can drive the conical member arranged thereon to move toward the direction of the fixed disk. One end of the conical member can be inserted into the corresponding holes passing through the first steel strand, the second steel strand and the third steel strand. As the conical member is inserted into the hole, the conical members on both sides of the same steel strand can move relative to each other, and at the same time, the fixed disk can be pushed to move toward the direction of the vertical plate.

[0012] Preferably, the positioning mechanism includes a fixing rod fixed to a side of the vertical plate close to the fixing plate, the fixing plate is slidably mounted on the fixing rod, a groove is provided on a side of the fixing plate close to the vertical plate, an inclined push rod is rotatably connected to the fixing rod, the inclined push rod is arranged between the vertical plate and the fixing plate, a resistance rod is penetrated through a side of the groove close to the prestressed steel strand assembly, the inclined push rod is rotatably connected to one end of the resistance rod located in the groove, a limiting mechanism is provided on one side of the resistance rod, and the limiting mechanism is connected to the groove.

[0013] Furthermore, the limiting mechanism can fully ensure the stability of the position of the interference rod after the adjustment is completed, so that the interference rod can cooperate with the fixed plate to clamp the corresponding first steel strand, second steel strand and third steel strand. That is, during the actual operation, as the fixed plate approaches the vertical plate, the inclined push rod can be rotated in a direction perpendicular to the fixed rod. As the inclined push rod rotates, the interference rod can be pushed to move in the direction of the first steel strand, second steel strand and third steel strand corresponding to it, so that the three interference rods can respectively interfere with the first steel strand, the second steel strand and the third steel strand, thereby further clamping the prestressed steel strand assembly.

[0014] Preferably, the limiting mechanism includes a limiting plate rotatably connected to one side of the interference rod, the limiting plate is located in the groove, and bevel racks are evenly spaced on the vertical side walls in the groove. The limiting plate is arranged through the bevel racks, and a spring is fixed between the limiting plate and the interference rod.

[0015] Furthermore, in actual use, the teeth on the limit plate and the limit plate are both inclined. When the interference rod is pushed and moved by the inclined push rod, the interference tooth of the interference rod can move and be inserted between the two teeth. At the same time, the limit plate is limited by setting a baffle member so that it cannot rotate in the opposite direction. This enables the limit plate to realize a function similar to a ratchet structure, and can only move in the direction of the prestressed steel strand assembly but cannot move in the opposite direction, so as to fully realize that the interference rod is fixed in position after adjusting the interference rod, ensure that the interference rod and the prestressed steel strand assembly are fixed in contact, and can drive the fixed plate to move stably.

[0016] Preferably, three winding wheels are rotatably sleeved in the first self-locking pipe fitting and the second self-locking pipe fitting, and the first steel strand, the second steel strand and the third steel strand are respectively wound on the three winding wheels, a linkage mechanism is provided on one side of one of the winding wheels, a turntable is provided on the linkage mechanism, the linkage mechanism is rotatably sleeved on the vertical plate and the fixed plate, a plurality of cross bars are fixed at equal intervals on one side of the turntable, a plurality of push rods are rotatably sleeved on the cross bars at equal intervals from left to right, one end of the plurality of push rods is rotatably connected with an insert pipe, a plurality of second casting holes are equally spaced on the first self-locking pipe fitting and the second self-locking pipe fitting are respectively slidably installed in the plurality of second casting holes, and a plurality of first casting holes are equally spaced on the first self-locking pipe fitting and the second self-locking pipe fitting.

[0017] Furthermore, during actual production and preparation, concrete can be poured through the pouring pipe, and sufficient pouring of different positions can be achieved by pulling out the pouring pipe. When the pouring pipe enters the first self-locking pipe fitting or the second self-locking pipe fitting, it can be output through the insert pipe, that is, when the prestressed steel strand assembly is pulled, the winding wheel can be rotated. As the winding wheel rotates, the turntable can be rotated through the linkage mechanism. The rotation of the turntable can enable the cross bar to push the push rod to extend the insert pipe out of the prestressed self-locking device assembly so that it can be better inserted into the surrounding soil layer, which can increase the extension range of the concrete and better improve the firmness of the connection. The concrete can overflow out of the prestressed self-locking device assembly through the first pouring hole, which helps to improve the connection effect between the prestressed self-locking device assembly and the surrounding soil.

[0018] Preferably, the linkage mechanism includes a double-bevel gear transmission assembly fixed on one side of one of the winding wheels, a linkage shaft is fixed on one side of the double-bevel gear transmission assembly, and the linkage sleeve is arranged on the vertical plate, the fixed disk and the prestressed self-locking device assembly. One side of the first self-locking pipe fitting and the second self-locking pipe fitting are both rotatably sleeved with an inner gear ring, a gear is fixed at one end of the linkage shaft, and the gear and the inner gear ring are meshed with each other. A sleeve is rotatably sleeved on the vertical plate, the fixed disk and the prestressed self-locking device assembly, the sleeve and the gear are fixedly connected, and the sleeve and the turntable are fixedly connected.

[0019] Furthermore, when the prestressed steel strand assembly is stretched, the winding wheel can rotate, and the rotation of the winding wheel can cause the double-bevel gear transmission assembly to drive the linkage shaft to rotate, so that the gear drives the inner ring gear to rotate, and the inner ring gear drives the sleeve and the turntable to rotate, which can provide power for the insertion tube to penetrate the prestressed self-locking device assembly, and help to better expand the volume of contact with the soil.

[0020] Preferably, the pouring pipe passes through the shaft sleeve, and a plurality of pouring openings are provided on the shaft sleeve at equal intervals.

[0021] Furthermore, concrete can enter one side of the vertical plate and the fixed plate through the pouring port, so that the concrete can be better poured into the prestressed self-locking device assembly, and the connection between the prestressed self-locking device assembly and the prestressed steel strand assembly can be fully realized.

[0022] Preferably, the three clamping bolt members are all arranged on the disc member, the first steel strand, the second steel strand and the third steel strand respectively pass through the three clamping bolt members, the chuck is arranged on the three clamping bolt members, one end of the first steel strand, the second steel strand and the third steel strand respectively pass through the three clamping bolt members and extend to one side of the clamping bolt members, one end of the clamping bolt member is located between the chuck and the disc member, three fastening nuts are respectively screwed on the three clamping bolt members, and the three fastening nuts are all located on the side of the chuck away from the disc member.

[0023] Furthermore, during actual production and preparation, a notch is opened on one side of the clamping bolt member, and the staff can make the first steel strand, the second steel strand and the third steel strand pass through the three clamping bolt members respectively, and at the same time, the clamping bolt members can pass through the notches and extend out of the clamping bolt members respectively, and at the same time, the chuck can be pushed to cooperate with the disc member to clamp the first steel strand, the second steel strand and the third steel strand extending out of the clamping bolt member, and the staff can also rotate the fastening nut to make the chuck move toward the direction of the disc member to achieve the clamping of the first steel strand, the second steel strand and the third steel strand.

[0024] Preferably, the casting pipe is located between the first steel strand, the second steel strand and the third steel strand.

[0025] Furthermore, the provision of the pouring pipe facilitates the pulling out of the pouring pipe and facilitates stable pouring of concrete.

[0026] The beneficial effects of the present invention are:

[0027] 1. By combining prestressed self-locking devices with rotary grouting expansion anchoring technology, a new solution is proposed for the reinforcement of thick layer accumulation slopes; this solution effectively controls the distribution of prestress in loose soil, significantly reduces the prestress loss caused by soil compression, and at the same time uses the expansion technology to reduce the length of the anchor cable and the dependence on deep bedrock, simplifying the construction process and reducing costs; in addition, multiple prestressed self-locking devices are connected to the pressure plate inside the expansion head formed by rotary grouting by steel strands to ensure that the distance between each self-locking device and its corresponding pressure plate remains consistent; this unique design keeps the prestress loss of each self-locking device in the soil the same, thereby achieving precise control of the propagation of prestress in the soil and balanced distribution of the overall prestress; the application of the present invention is not limited to a specific type of soil or geological conditions, and it combines the advantages of the two technologies to enable it to adapt to a wider range of environments and conditions; from slightly loose to moderately loose accumulations, the present invention can provide an effective reinforcement solution;

[0028] 2. During actual production and preparation, a pressure sensor and a displacement meter are set at the outer anchor head assembly to accurately measure the length of the prestressed steel strand assembly pulled out;

[0029] 3. By arranging clamping rods on both sides of the steel strand, it is possible to facilitate the movement of the steel strand during threading. In actual production and preparation, the steel strand is composed of multiple steel wires wound together to form a layer, and an annular groove is formed on its surface. When the steel strand is pulled backward, the end of the clamping rod that contacts the prestressed steel strand assembly will contact the groove, causing the clamping rod to rotate in a direction parallel to the slide plate, that is, the clamping rods on both sides of the same prestressed steel strand assembly rotate in the same straight line, so that the distance between the two opposite ends of the clamping rods is shortened to achieve clamping of the steel strand, so that the slide plate can move with the steel strand toward the direction of the outer anchor head assembly, that is, the tapered member will move in the direction of the hole groove through which the steel strand passes through the fixed plate;

[0030] 4. When one end of the conical member enters the hole groove through which the steel strand passes through the fixed plate, the conical member can move toward the direction of the steel strand. As the conical member is continuously inserted, the two conical members can clamp the steel strand inside, further fixing the position of the fixed plate and the steel strand.

[0031] 5. When the positions of the fixing plate and the steel strand are fixed, the fixing plate can be moved toward the vertical plate, and the inclined push rod can be rotated in a direction perpendicular to the fixing rod during the movement, so that the inclined push rod can push the contact rod to move so as to contact the contact rod and the steel strand, further improving the stability of the clamping, and fully realizing the connection and fixation of the prestressed steel strand assembly and the corresponding prestressed self-locking device assembly;

[0032] 6. At the same time, when the prestressed steel strand assembly is pulled, the winding wheel will rotate, and the winding wheel can drive the linkage shaft to rotate through the double-cone gear transmission assembly. The winding wheel is composed of two mutually meshing conical gears, and the two conical gears are respectively fixed on one side of the winding wheel and one end of the linkage shaft. The rotation of the linkage shaft can drive the inner gear ring to rotate, so that the shaft sleeve drives the turntable to rotate. Through the action of the cross bar, the push rod can push the insert pipe through the second casting hole and extend to the outer end of the prestressed self-locking device assembly. When the prestressed steel strand assembly is straightened, the outer anchor head assembly and one side of the more stable accumulation layer are in contact and tightened;

[0033] 7. At the same time, the staff can pull out the pouring pipe and pour the concrete into the more stable accumulation layer through the pouring pipe. With the movement of the pouring pipe, the concrete can be effectively and evenly poured into the more stable accumulation layer so as to be fully fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural diagram of the present invention;

[0035] Figure 2 It is a structural diagram of the outer anchor head assembly and the prestressed self-locking device assembly of the present invention;

[0036] Figure 3 This is a diagram showing the internal structure of the prestressed self-locking device assembly of the present invention;

[0037] Figure 4 The present invention is attached Figure 3 A magnified image of point A;

[0038] Figure 5 It is a structural diagram of the double-cone gear transmission assembly and the linkage shaft of the present invention;

[0039] Figure 6 It is a structural diagram of the outer anchor head assembly of the present invention;

[0040] Figure 7 This is a structural diagram of the inner gear ring, shaft sleeve and rotating disk of the present invention;

[0041] Figure 8 It is a structural diagram of the prestressed self-locking device assembly of the present invention;

[0042] In the figure: 1 loose accumulation body, 2 relatively stable accumulation body layer, 3 outer anchor head assembly, 301 disc, 302 fastening nut, 303 clamping bolt, 304 clamping plate, 4 prestressed self-locking device assembly, 401 first self-locking pipe fitting, 402 second self-locking pipe fitting, 5 enlarged head, 6 pressure plate assembly, 601 first pressure plate, 602 second pressure plate, 603 third pressure plate, 7 outer anchoring section, 8 prestressed steel strand assembly, 801 first steel strand, 802 second steel strand, 803 third steel strand, 9 inner anchoring section, 10 intercepting ditch, 11 Drainage ditch, 12 potential sliding surface, 13 casting pipe, 14 first casting hole, 15 second casting hole, 16 insert pipe, 17 linkage shaft, 18 inner gear ring, 19 gear, 20 bushing, 21 turntable, 22 winding wheel, 23 cross bar, 24 push rod, 25 fixed rod, 26 oblique rack, 27 spring, 28 oblique push rod, 29 contact rod, 30 groove, 31 limit plate, 32 cone, 33 double rod bracket assembly, 34 tension spring, 35 clamp rod, 36 slide plate, 37 limit rod, 38 fixed plate, 39 double cone gear transmission assembly, 40 vertical plate. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] Reference Figure 1A support system for reinforcing a thick layer of accumulation body slope with a prestressed self-locking rotary spray expansion body, comprising a relatively stable accumulation body layer 2, a loose accumulation body 1 is stacked at the front end of the relatively stable accumulation body layer 2, a plurality of inner anchoring sections 9 are arranged in the relatively stable accumulation body layer 2 at equal intervals from top to bottom, a pressure plate assembly 6 is arranged in the inner anchoring section 9, the pressure plate assembly 6 is composed of a first pressure plate 601, a second pressure plate 602 and a third pressure plate 603, an enlarged head 5 is arranged on the first pressure plate 601, the second pressure plate 602 and the third pressure plate 603, a prestressed steel strand assembly 8 is passed through the enlarged head 5 and the pressure plate assembly 6 therein, and the prestressed steel strand assembly 8 is passed through the prestressed steel strand assembly An outer anchoring section 7 is provided at one end of the component 8, and the outer anchoring section 7 includes an outer anchor head assembly 3 and a prestressed self-locking device assembly 4, and the prestressed self-locking device assembly 4 is composed of a first self-locking pipe 401 and a second self-locking pipe 402. The outer anchor head assembly 3 and the first self-locking pipe 401 and the second self-locking pipe 402 are fixed to one end of the prestressed steel strand assembly 8 from left to right in sequence, and the outer anchor head assembly 3 is located on one side of the relatively stable accumulation body layer 2, and the outer anchor head assembly 3 and one side of the relatively stable accumulation body layer 2 are in conflict, and a potential sliding surface 12 is provided in the relatively stable accumulation body layer 2, and the outer anchoring section 7 extends into the potential sliding surface 12, and multiple outer anchor head assemblies 3 are all located in the loose accumulation body 1;

[0045] A drainage ditch 10 is provided on one side of the upper end of the relatively stable accumulation body layer 2, and the drainage ditch 10 is located on the upper end of the potential sliding surface 12. An open drainage ditch 11 is provided on one side of the lower end of the loose accumulation body 1.

[0046] Reference Figure 1 The top of the accumulation body slope is a loose accumulation body 1, and the middle part is a relatively stable accumulation body layer 2. The support system includes an external anchoring section 7 composed of an external anchor head assembly 3 and a prestressed self-locking device assembly 4; an internal anchoring section 9 composed of an enlarged head 5 anchored in the relatively stable accumulation body layer 2; and a drainage system composed of an intercepting ditch 10 and an open drainage ditch 11.

[0047] The above-mentioned thick deposit slope support system.

[0048] The outer anchoring section 7 includes an outer anchor head assembly 3 and a prestressed self-locking device assembly 4, which are components for tensioning, applying prestress and locking. In actual use, the outer anchor head assembly 3 is connected through tensioning equipment such as a jack to apply tensioning force, and is equipped with a pressure sensor and a displacement meter to measure the tensioning force and anchor head displacement.

[0049] The inner anchoring section 9 is anchored in the relatively stable accumulation layer 2, and the free section of the anchor cable does not need to pass through the accumulation body; the prestress is applied to the sections in the soil body through the prestressed self-locking device assembly 4, which greatly reduces the degree of prestress loss and makes the horizontal confining pressure inside the slope increase more evenly, thereby significantly improving the stress state of the slope and effectively improving the lateral deformation resistance of the slope.

[0050] In addition, the outer anchoring section 7, the inner anchoring section 9, the prestressed steel strand assembly 8 and the soil form an integral structure that works together, which can significantly enhance the overall stability of the slope. This method can also set a prestressed self-locking device assembly 4 inside the slope before excavation to achieve the effect of segmented reinforcement, thereby avoiding safety problems caused by untimely support during excavation.

[0051] An inverted trapezoidal intercepting ditch 10 is arranged at the top of the slope, with a depth of 1-3m, an upper bottom width of 4-6m, a lower bottom width of 2-3m, and an inclination angle of 60-75 degrees with the horizontal direction on both sides; and the bottom surface of the intercepting ditch 10 gradually inclines downward from the middle to both sides along its length direction, and the inclined surface forms an angle of 10-15 degrees with the horizontal direction, so as to facilitate the flow of water into the intercepting ditch 10 and more water into the rapid drainage ditch arranged on both sides of the intercepting ditch 10; a concrete layer with a thickness of about 200mm is laid on the inclined surfaces of both sides and the bottom of the intercepting ditch 10 to prevent rainwater from scouring the mud and rocks inside the intercepting ditch, and also facilitate regular cleaning of debris and mud and rocks accumulated inside the intercepting ditch 10.

[0052] An open drainage ditch 11 is arranged at the foot of the slope. The concrete strength used in the open drainage ditch 11 is greater than or equal to C20. The open drainage ditch 11 is a rectangular groove with a depth of about 1m and a width of about 1m. The water discharged from the slope flows into the nearby drainage system through the open drainage ditch 11 to prevent the erosion of the soil at the foot of the slope due to the turbulent water flowing into the bottom of the slope. At the same time, it also enhances the efficiency of water discharging from the slope and flowing into the nearby drainage system. The mud, stone and dirt in the open drainage ditch 11 can be cleaned regularly and conveniently, effectively enhancing the overall stability of the slope.

[0053] Reference Figure 1 A casting pipe 13 is commonly provided through the outer anchor head assembly 3, the prestressed self-locking device assembly 4 and the pressure plate assembly 6. The casting pipe 13 is connected to an external concrete supply device, which can stably transport the concrete. At the same time, the casting pipe 13 can be pulled out to effectively realize the casting operation.

[0054] Reference Figure 2-8The prestressed self-locking device assembly 4 is composed of a first self-locking pipe 401 and a second self-locking pipe 402. The prestressed steel strand assembly 8 is composed of a first steel strand 801, a second steel strand 802 and a third steel strand 803. The outer anchor head assembly 3 is composed of a disc 301, three fastening nuts 302, three clamping bolts 303 and a clamping plate 304. The pressure plate assembly 6 is composed of a first pressure plate 601, a second pressure plate 602 and a third pressure plate 603. The first steel strand 801 and the first bearing plate The pressure plate 601 is connected, the second steel strand 802 is connected to the second pressure plate 602, the third steel strand 803 is connected to the third pressure plate 603, the first self-locking pipe fitting 401 and the second self-locking pipe fitting 402 are both provided with a self-locking mechanism, the second steel strand 802 and the third steel strand 803 are respectively connected to the two self-locking mechanisms, and the self-locking mechanism can move when the prestressed steel strand assembly 8 is pulled, and the prestressed steel strand assembly 8 can be straightened during the process of being straightened.

[0055] Reference Figure 2-8The self-locking mechanism includes two vertical plates 40 respectively fixed in the first self-locking pipe 401 and the second self-locking pipe 402, a positioning mechanism is provided on the vertical plate 40, a fixed plate 38 is provided on the positioning mechanism, a limit rod 37 is fixed on the fixed plate 38, a slide plate 36 is slidably installed on the limit rod 37, the second steel strand 802 and the third steel strand 803 respectively penetrate the two slide plates 36 in the first self-locking pipe 401 and the second self-locking pipe 402, two double-rod bracket assemblies 33 are installed on one side of the slide plate 36 and the fixed plate 38, and a conical member 3 is installed at one end of each of the two double-rod bracket assemblies 33 2, a tension spring 34 is fixed between the conical member 32 and the slide plate 36, the two conical members 32 on one side of the same slide plate 36 form a group, the second steel strand 802 and the third steel strand 803 respectively penetrate the two groups of conical members 32, the slide plate 36 is rotatably connected to the side away from the fixed plate 38 with two clamping rods 35, the two clamping rods 35 connected to the same slide plate 36 form a group, the second steel strand 802 and the third steel strand 803 respectively penetrate the two groups of clamping rods 35, the first steel strand 801, the second steel strand 802 and the third steel strand 803 all penetrate the fixed plate 38 and the vertical plate 40, in actual production During production, the first steel strand 801, the second steel strand 802 and the third steel strand 803 are composed of multiple steel wires intertwined with each other, and the surface of the steel strands has an annular groove. One side of the conical member 32 is inclined, and the other side of the conical member 32 can collide with the corresponding first steel strand 801, the second steel strand 802 and the third steel strand 803. When the first steel strand 801, the second steel strand 802 and the third steel strand 803 are pulled straight, the clamping rod 35 will be driven to rotate in the direction of the slide plate 36. As the clamping rod 35 rotates, the two clamping rods 35 can rotate toward a straight line. The two clamping rods 35 can clamp the corresponding first steel strand 801, second steel strand 802 and third steel strand 803, so that the first steel strand 801, second steel strand 802 and third steel strand 803 can drive the conical member 32 arranged thereon to move toward the direction of the fixed disk 38, and one end of the conical member 32 can be inserted into the corresponding holes passing through the first steel strand 801, second steel strand 802 and third steel strand 803. As the conical member 32 is inserted into the hole, the conical members 32 on both sides of the same steel strand can move relative to each other, and at the same time, the fixed disk 38 can be pushed to move toward the direction of the vertical plate 40.

[0056] Reference Figure 2-8The positioning mechanism includes a fixing rod 25 fixed to a side of the vertical plate 40 close to the fixing plate 38, the fixing plate 38 is slidably mounted on the fixing rod 25, a groove 30 is provided on the side of the fixing plate 38 close to the vertical plate 40, an oblique push rod 28 is rotatably connected to the fixing rod 25, the oblique push rod 28 is arranged between the vertical plate 40 and the fixing plate 38, a resistance rod 29 is penetrated on one side of the groove 30 close to the prestressed steel strand assembly 8, the oblique push rod 28 is rotatably connected to one end of the resistance rod 29 located in the groove 30, a limiting mechanism is provided on one side of the resistance rod 29, the limiting mechanism is connected to the groove 30, and the stability of the position of the resistance rod 29 can be fully guaranteed after the adjustment is completed through the action of the limiting mechanism. The invention relates to a prestressed steel strand assembly 801, a prestressed steel strand assembly 802, and a prestressed steel strand assembly 803. The prestressed steel strand assembly 801 is a prestressed steel strand assembly 801, a prestressed steel strand assembly 802, and a prestressed steel strand assembly 803. The prestressed steel strand assembly 801 is a prestressed steel strand assembly 801, a prestressed steel strand assembly 802, and a prestressed steel strand assembly 803 are a prestressed steel strand assembly 801, a prestressed steel strand assembly 803, and a prestressed steel strand assembly 803 is a prestressed steel strand assembly 801, a prestressed steel strand assembly 802, and a prestressed steel strand assembly 803 are a prestressed steel strand assembly 801, a prestressed steel strand assembly 803, and a prestressed steel strand assembly 801 ...

[0057] Reference Figure 2-4 The limit mechanism includes a limit plate 31 rotatably connected to one side of the interference rod 29, the limit plate 31 is located in the groove 30, and the vertical side walls in the groove 30 are evenly spaced with oblique racks 26, the limit plate 31 is penetrated and arranged in the oblique rack 26, and a spring 27 is fixed between the limit plate 31 and the interference rod 29. In actual use, the teeth on the limit plate 31 and the limit plate 31 are all inclined. When the interference rod 29 is pushed and moved by the oblique push rod 28, the interference rod 29 can be moved to the interference tooth and inserted between the two teeth. At the same time, the limit plate 31 is limited by setting a baffle member so that it cannot rotate in the opposite direction, which makes the limit plate 31 can realize a function similar to a ratchet structure and can only move in the direction of the prestressed steel strand assembly 8, but cannot move in the opposite direction, so as to fully realize that the interference rod 29 is fixed in position after adjusting the interference rod 29, to ensure that the interference rod 29 and the prestressed steel strand assembly 8 are in contact and fixed, and can drive the fixed plate 38 to move stably.

[0058] Reference Figure 2 , 3, 5, 7, three winding wheels 22 are rotatably sleeved in the first self-locking pipe fitting 401 and the second self-locking pipe fitting 402, the first steel strand 801, the second steel strand 802 and the third steel strand 803 are respectively wound on the three winding wheels 22, a linkage mechanism is provided on one side of one of the winding wheels 22, a turntable 21 is provided on the linkage mechanism, the linkage mechanism is rotatably sleeved on the vertical plate 40 and the fixed plate 38, a plurality of cross bars 23 are fixed at equal intervals on one side of the turntable 21, a plurality of push rods 24 are rotatably sleeved on the cross bars 23 at equal intervals from left to right, one end of the plurality of push rods 24 is rotatably connected with a plug 16, a plurality of second casting holes 15 are equally spaced on the first self-locking pipe fitting 401 and the second self-locking pipe fitting 402, a plurality of plugs 16 are respectively slidably installed in the plurality of second casting holes 15, the first self-locking pipe fitting 401 and the second self-locking pipe fitting 402 are equally spaced There are multiple first pouring holes 14. During actual production and preparation, concrete can be poured through the pouring pipe 13, and sufficient pouring of different positions can be achieved by pulling out the pouring pipe 13. When the pouring pipe 13 enters the first self-locking pipe fitting 401 or the second self-locking pipe fitting 402, it can be output through the insert pipe 16, that is, when the prestressed steel strand assembly 8 is pulled, the winding wheel 22 can be rotated. As the winding wheel 22 rotates, the turntable 21 can be rotated through the linkage mechanism. The rotation of the turntable 21 can enable the cross bar 23 to push the push rod 24 to extend the insert pipe 16 out of the prestressed self-locking device assembly 4, so as to better insert it into the surrounding soil layer, which can increase the extension range of the concrete and better improve the firmness of the connection. The concrete can overflow the prestressed self-locking device assembly 4 through the first pouring hole 14, which helps to improve the connection effect between the prestressed self-locking device assembly 4 and the surrounding soil.

[0059] Reference Figure 3 , 5 7, the linkage mechanism includes a double-cone gear transmission assembly 39 fixed to one side of one of the winding wheels 22, a linkage shaft 17 is fixed to one side of the double-cone gear transmission assembly 39, the linkage shaft 17 is sleeved on the vertical plate 40, the fixed disk 38 and the prestressed self-locking device assembly 4, the first self-locking pipe 401 and the second self-locking pipe 402 are both rotatably sleeved with an inner gear ring 18, one end of the linkage shaft 17 is fixed with a gear 19, the gear 19 and the inner gear ring 18 are meshed, the vertical plate 40, the fixed disk 38 and the prestressed self-locking device assembly 4 is connected with a shaft sleeve 20 for rotation together, the shaft sleeve 20 and the gear 19 are fixedly connected, and the shaft sleeve 20 and the turntable 21 are fixedly connected. When the prestressed steel strand assembly 8 is stretched, the winding wheel 22 can be rotated, and the rotation of the winding wheel 22 can make the double-cone gear transmission assembly 39 drive the linkage shaft 17 to rotate, so that the gear 19 drives the inner gear ring 18 to rotate, and the inner gear ring 18 drives the shaft sleeve 20 and the turntable 21 to rotate, which can provide power for the insertion tube 16 to penetrate the prestressed self-locking device assembly 4, which helps to better expand the volume in contact with the soil.

[0060] Reference Figure 3 , 7 The pouring pipe 13 passes through the shaft sleeve 20, and a plurality of pouring ports are provided on the shaft sleeve 20 at equal intervals, which can facilitate stable transmission without causing the pouring pipe 13 and the shaft sleeve 20 to affect each other, and can cause concrete to overflow from the pouring ports so as to fully carry out the pouring operation.

[0061] Reference Figure 2 , 6 The three clamping bolts 303 are all arranged on the disc 301, the first steel strand 801, the second steel strand 802 and the third steel strand 803 are respectively arranged on the three clamping bolts 303, the clamping plate 304 is arranged on the three clamping bolts 303, one end of the first steel strand 801, the second steel strand 802 and the third steel strand 803 are respectively arranged on the three clamping bolts 303 and extend to one side of the clamping bolts 303, one end of the clamping bolt 303 is located between the clamping plate 304 and the disc 301, and the three fastening nuts 302 are respectively screwed on the three clamping bolts 303, and the three fastening nuts 302 are all located on the side of the clamping plate 304 away from the disc 301. During production and preparation, a notch is opened on one side of the clamping bolt member 303, and the staff can make the first steel strand 801, the second steel strand 802 and the third steel strand 803 pass through the three clamping bolt members 303 respectively, and at the same time, the clamping bolt members 303 can be respectively passed through the notches and extended out of the clamping bolt members 303, and at the same time, the chuck 304 can be pushed to cooperate with the disc member 301 to clamp the first steel strand 801, the second steel strand 802 and the third steel strand 803 extending out of the clamping bolt member 303, and the staff can also rotate the fastening nut 302 to make the chuck 304 move toward the direction of the disc member 301, so as to achieve the clamping of the first steel strand 801, the second steel strand 802 and the third steel strand 803.

[0062] Reference Figure 3 The pouring pipe 13 is located between the first steel strand 801, the second steel strand 802 and the third steel strand 803, which facilitates the stable withdrawal of the pouring pipe 13 to achieve stable pouring of concrete.

[0063] In the present invention, when in use, the staff makes the first steel strand 801, the second steel strand 802 and the third steel strand 803 pass through the three clamping bolts 303 respectively, and makes the first steel strand 801, the second steel strand 802 and the third steel strand 803 pass through the three clamping bolts 303 and extend to one side of the clamping bolts 303, and at the same time rotates the fastening nut 302 and pushes the clamping plate 304 to achieve the clamping of the first steel strand 801, the second steel strand 802 and the third steel strand 803, so as to facilitate pulling the prestressed steel strand assembly 8 to move.

[0064] By arranging clamping rods 35 on both sides of the steel strand, the steel strand can be easily moved during threading. During actual production and preparation, the steel strand is composed of multiple steel wires wound together to form a layer, and an annular groove is formed on its surface. When the steel strand is pulled backward, the end of the clamping rod 35 that contacts the prestressed steel strand assembly 8 will contact the groove, causing the clamping rod 35 to rotate in a direction parallel to the slide plate 36, that is, the clamping rods 35 on both sides of the same prestressed steel strand assembly 8 rotate in the same straight line, so that the distance between the opposite ends of the two clamping rods 35 is shortened to achieve clamping of the steel strand, so that the slide plate 36 can move along with the steel strand toward the direction of the outer anchor head assembly 3, that is, the conical member 32 will move toward the hole groove through which the steel strand passes through the fixed plate 38.

[0065] When one end of the conical member 32 enters the hole groove through which the steel strand passes through the fixing plate 38, the conical member 32 can move toward the direction of the steel strand. As the conical member 32 is continuously inserted, the two conical members 32 can clamp the steel strand therein.

[0066] When the positions of the fixed disk 38 and the steel strand are fixed, the fixed disk 38 can be moved toward the vertical plate 40. During the movement, the inclined push rod 28 can be rotated in a direction perpendicular to the fixed rod 25, and the inclined push rod 28 can push the interference rod 29 to move so as to interfere with the interference rod 29 and the steel strand, thereby realizing the connection and fixation of the prestressed steel strand assembly 8 and the corresponding prestressed self-locking device assembly 4.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A support system for reinforcing a thick layer of deposited body slope with a prestressed self-locking rotary spray expansion body, comprising a relatively stable deposited body layer (2), characterized in that: A loose accumulation body (1) is accumulated at the front end of the relatively stable accumulation body layer (2), and a plurality of inner anchoring sections (9) are arranged in sequence from top to bottom at equal intervals in the relatively stable accumulation body layer (2). A pressure plate assembly (6) is arranged in the inner anchoring section (9), and the pressure plate assembly (6) is composed of a first pressure plate (601), a second pressure plate (602), and a third pressure plate (603). An enlarged head (5) is commonly arranged on the first pressure plate (601), the second pressure plate (602), and the third pressure plate (603). A prestressed steel strand assembly (8) is commonly arranged through the enlarged head (5) and the pressure plate assembly (6) therein. The prestressed steel strand assembly (8) is commonly arranged on the enlarged head (5) and the pressure plate assembly (6) therein. An external anchoring section (7) is provided at one end of the steel strand assembly (8), the external anchoring section (7) comprising an external anchor head assembly (3) and a prestressed self-locking device assembly (4), the prestressed self-locking device assembly (4) comprising a first self-locking pipe member (401) and a second self-locking pipe member (402), the external anchor head assembly (3) and the first self-locking pipe member (401) and the second self-locking pipe member (402) are fixed to one end of the prestressed steel strand assembly (8) in sequence from left to right, the external anchor head assembly (3) is located on one side of a relatively stable stacking body layer (2), the external anchor head assembly (3) and one side of the relatively stable stacking body layer (2) are in conflict with each other, and the relatively stable stacking body layer (2) is internally fixed to the external anchor head assembly (3). A potential sliding surface (12) is provided, the outer anchoring section (7) extends into the potential sliding surface (12), and a plurality of outer anchor head assemblies (3) are all located in the loose accumulation body (1); a drainage ditch (10) is provided on one side of the upper end of the relatively stable accumulation body layer (2), and the drainage ditch (10) is located at the upper end of the potential sliding surface (12); an open drainage ditch (11) is provided on one side of the lower end of the loose accumulation body (1); a casting pipe (13) is provided through the outer anchor head assembly (3), the prestressed self-locking device assembly (4) and the pressure plate assembly (6); the prestressed steel strand assembly (8) is composed of a first steel strand (801), a second steel strand (802) and a first steel strand (803). The outer anchor head assembly (3) is composed of three steel strands (803), and the outer anchor head assembly (3) is composed of a disc (301), three fastening nuts (302), three clamping bolts (303) and a clamping plate (304); the first steel strand (801) is connected to the first pressure plate (601), the second steel strand (802) is connected to the second pressure plate (602), and the third steel strand (803) is connected to the third pressure plate (603); the first self-locking pipe fitting (401) and the second self-locking pipe fitting (402) are both provided with self-locking mechanisms, and the second steel strand (802) and the third steel strand (803) are respectively connected to two self-locking mechanisms.

2. A support system for reinforcing the slope of a thick deposit using a prestressed self-locking rotary spray expansion body according to claim 1, characterized in that: The self-locking mechanism comprises two vertical plates (40) respectively fixed in a first self-locking pipe member (401) and a second self-locking pipe member (402); a positioning mechanism is provided on the vertical plate (40); a fixing plate (38) is provided on the fixing plate (38); a limiting rod (37) is fixed on the fixing plate (38); a slide plate (36) is slidably mounted on the limiting rod (37); the second steel strand (802) and the third steel strand (803) respectively penetrate the two slide plates (36) in the first self-locking pipe member (401) and the second self-locking pipe member (402); two double-rod bracket assemblies (33) are mounted on one side of the slide plate (36) and the fixing plate (38); a conical member (36) is mounted on one end of each of the two double-rod bracket assemblies (33). 2), a tension spring (34) is fixed between the conical member (32) and the slide plate (36), the two conical members (32) located on one side of the same slide plate (36) form a group, the second steel strand (802) and the third steel strand (803) respectively penetrate the two groups of conical members (32), the side of the slide plate (36) away from the fixed plate (38) is rotatably connected to two clamping rods (35), the two clamping rods (35) connected to the same slide plate (36) form a group, the second steel strand (802) and the third steel strand (803) respectively penetrate the two groups of clamping rods (35), and the first steel strand (801), the second steel strand (802) and the third steel strand (803) all penetrate the fixed plate (38) and the vertical plate (40).

3. A support system for reinforcing the slope of a thick deposit using a prestressed self-locking rotary spray expansion body according to claim 2, characterized in that: The positioning mechanism comprises a fixing rod (25) fixed to a side of the vertical plate (40) close to the fixing plate (38); the fixing plate (38) is slidably mounted on the fixing rod (25); a groove (30) is provided on a side of the fixing plate (38) close to the vertical plate (40); an inclined push rod (28) is rotatably connected to the fixing rod (25); the inclined push rod (28) is arranged between the vertical plate (40) and the fixing plate (38); a resistance rod (29) is penetrated through a side of the groove (30) close to the prestressed steel strand assembly (8); the inclined push rod (28) is rotatably connected to one end of the resistance rod (29) located in the groove (30); a limiting mechanism is provided on one side of the resistance rod (29); and the limiting mechanism is connected to the groove (30).

4. A support system for reinforcing the slope of a thick deposit using a prestressed self-locking rotary spray expansion body according to claim 3, characterized in that: The limiting mechanism comprises a limiting plate (31) rotatably connected to one side of the abutment rod (29); the limiting plate (31) is located in the groove (30); oblique racks (26) are evenly spaced on the vertical side walls in the groove (30); the limiting plate (31) penetrates the oblique racks (26); and a spring (27) is fixed between the limiting plate (31) and the abutment rod (29).

5. A support system for reinforcing the slope of a thick deposit using a prestressed self-locking rotary spray expansion body according to claim 4, characterized in that: Three winding wheels (22) are rotatably sleeved in the first self-locking pipe member (401) and the second self-locking pipe member (402), and the first steel strand (801), the second steel strand (802) and the third steel strand (803) are respectively wound on the three winding wheels (22). A linkage mechanism is provided on one side of one of the winding wheels (22), and a rotating disk (21) is provided on the linkage mechanism. The linkage mechanism is rotatably sleeved on the vertical plate (40) and the fixed disk (38), and a plurality of horizontal wheels (21) are fixed at equal intervals on one side of the rotating disk (21). A rod (23) is provided on the cross bar (23), a plurality of push rods (24) are rotatably sleeved in sequence at equal intervals from left to right, one end of the plurality of push rods (24) is rotatably connected to a plug tube (16), a plurality of second casting holes (15) are formed at equal intervals on the first self-locking pipe member (401) and the second self-locking pipe member (402), the plurality of plug tubes (16) are slidably mounted in the plurality of second casting holes (15), and a plurality of first casting holes (14) are formed at equal intervals on the first self-locking pipe member (401) and the second self-locking pipe member (402).

6. A support system for reinforcing the slope of a thick deposit using a prestressed self-locking rotary spray expansion body according to claim 5, characterized in that: The linkage mechanism comprises a double-cone gear transmission assembly (39) fixed to one side of one of the winding wheels (22); a linkage shaft (17) is fixed to one side of the double-cone gear transmission assembly (39); the linkage shaft (17) is sleeved on the vertical plate (40), the fixed disk (38) and the prestressed self-locking device assembly (4); an inner gear ring (18) is rotatably sleeved on one side of the first self-locking pipe member (401) and the second self-locking pipe member (402); a gear (19) is fixed to one end of the linkage shaft (17); the gear (19) and the inner gear ring (18) are meshed; a shaft sleeve (20) is rotatably sleeved on the vertical plate (40), the fixed disk (38) and the prestressed self-locking device assembly (4); the shaft sleeve (20) and the gear (19) are fixedly connected; and the shaft sleeve (20) and the rotating disk (21) are fixedly connected.

7. A prestressed self-locking rotary spray expansion body reinforcement thick layer accumulation body slope support system according to claim 6, characterized in that: The pouring pipe (13) passes through the shaft sleeve (20), and a plurality of pouring openings are provided on the shaft sleeve (20) at equal intervals.

8. A support system for reinforcing the slope of a thick deposit using a prestressed self-locking rotary spray expansion body according to claim 7, characterized in that: The three clamping bolts (303) are all arranged through the disc (301); the first steel strand (801), the second steel strand (802) and the third steel strand (803) respectively pass through the three clamping bolts (303); the clamping plate (304) is arranged through the three clamping bolts (303); one end of the first steel strand (801), the second steel strand (802) and the third steel strand (803) respectively pass through the three clamping bolts (303) and extend to one side of the clamping bolt (303); one end of the clamping bolt (303) is located between the clamping plate (304) and the disc (301); three fastening nuts (302) are respectively screwed on the three clamping bolts (303); the three fastening nuts (302) are all located on a side of the clamping plate (304) away from the disc (301).

9. A support system for reinforcing the slope of a thick deposit using a prestressed self-locking rotary spray expansion body according to claim 8, characterized in that: The casting pipe (13) is located between the first steel strand (801), the second steel strand (802) and the third steel strand (803).

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