Roadway supporting structure and supporting method thereof

Abstract

The invention discloses a roadway supporting structure and a supporting method thereof, and belongs to the technical field of roadway supporting. The supporting and positioning mechanism comprises an anchor rod positioning assembly and a modular anchor net positioning assembly. The modularized anchor net positioning assemblies can be detachably installed on the four sides of the anchor rod positioning assembly, and the modularized anchor net positioning assemblies can be selectively installed on the different sides of the anchor rod positioning assembly. Every two adjacent sets of modular anchor net positioning assemblies can be connected end to end, the number of the modular anchor net positioning assemblies can be selectively increased or decreased, the action area of the modular anchor net positioning assemblies on an anchor net is larger, and the number of installed anchor rod positioning assemblies is smaller. And secondly, every two adjacent anchor rod positioning assemblies are connected through a reinforcing steel bar in a penetrating mode, the reinforcing steel bar is connected with a nearby anchor net in a hanging mode through a plurality of S-shaped hooks evenly distributed in the multiple positions, so that a whole with mutual constraining force is formed between every two anchor rod positioning assemblies and the anchor net, and the single anchor rod positioning assembly is not prone to falling off.

Description

Technical Field

[0001] The present invention relates to the technical field of roadway support, and particularly to a roadway support structure and a support method thereof. Background Art

[0002] The roadway support technology is widely used in the coal mining industry, especially in deep mining, complex geological conditions and large cross-section coal roadways. The roadway support technology uses bolts to fix the anchor net on the surrounding rock of the roadway to form an integral load-bearing structure. The bolt acts on the rock stratum or coal body through its prestress to generate frictional stress and support stress, thereby resisting the deformation and failure of the rock stratum or coal body.

[0003] At present, the bolt used for positioning can only position a certain position point of the anchor net, and the acting area on the anchor net after positioning is small. Only by increasing the number of bolts can the acting area on the anchor net be expanded. When installing bolts, they are mainly fixed by drilling and knocking. If the number of installed bolts is too large, it will greatly increase the workload of the staff; secondly, there is a lack of mutual restraint between each bolt, resulting in the single bolt being prone to falling off. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a roadway support structure and a support method thereof. The modular anchor net positioning component of the roadway support structure can be selectively installed on different sides of the bolt positioning component according to actual position requirements, and the number of modular anchor net positioning components on each side can be selectively increased or decreased. Its acting area on the anchor net is larger, and the number of installed bolt positioning components is less; secondly, a reinforcing bar runs through and connects between every two adjacent groups of bolt positioning components, and multiple S-shaped hooks are hung on the nearby anchor net, so that an integral body with mutual restraint is formed between every two groups of bolt positioning components and the anchor net, and the single bolt positioning component is not easy to fall off, greatly improving the stability of the roadway support.

[0005] The technical solution of the present invention is realized as follows:

[0006] A roadway support structure includes an anchor net and a support positioning mechanism; the support positioning mechanism includes a bolt positioning component and a modular anchor net positioning component, wherein the modular anchor net positioning component is used for clamping and positioning the anchor net.

[0007] Modular anchor net positioning components can be detachably installed on four sides of the bolt positioning component. The modular anchor net positioning component can be selectively installed on any one side, symmetric two sides, any three sides or four sides of the bolt positioning component; the head and tail of every two adjacent groups of modular anchor net positioning components can be connected end to end, and the number of the modular anchor net positioning components can be selectively increased or decreased.

[0008] Every two adjacent groups of bolt positioning components are connected through a reinforcing steel bar running through, and the reinforcing steel bar is hooked to the nearest anchor net through a plurality of evenly distributed S-shaped hooks.

[0009] With the above scheme, the modular anchor net positioning components of the roadway support structure can be selectively installed on different sides of the bolt positioning components according to actual position requirements, and the number of modular anchor net positioning components on each side can be selectively increased or decreased. Its acting area on the anchor net is larger, and the number of installed bolt positioning components is less. Secondly, every two adjacent groups of bolt positioning components are connected through a reinforcing steel bar running through and a plurality of S-shaped hooks are hooked to the nearest anchor net, so that an integral body with mutual binding force is formed between each two groups of bolt positioning components and the anchor net, and a single bolt positioning component is not easy to fall off, greatly improving the stability of the roadway support.

[0010] As a preferred implementation mode of a roadway support structure, the bolt positioning component includes an annular positioning seat. A positioning hole is penetrated and opened at the center of the annular positioning seat. A bolt embedded in the roadway rock wall is installed in the positioning hole. The end of the bolt is connected with a percussion end whose diameter is larger than its rod body, and a plurality of evenly distributed barbs are connected to the rod body of the bolt;

[0011] Two positioning pins one are respectively fixed on the four sides of the annular positioning seat. Through the positioning pin one, the installation of the modular anchor net positioning component can be quickly completed.

[0012] With the above scheme, in order to fix the anchor net, first drill a hole in advance on the roadway rock wall, and then embed a bolt with barbs at the drilling position, and use one bolt positioning component to fix a plurality of modular anchor net positioning components at the same time.

[0013] As a preferred implementation mode of a roadway support structure, a docking seat is inserted below the percussion end. A rotating seat is rotatably installed below the docking seat. A jack for cooperating with the reinforcing steel bar is penetrated and opened at the end of the rotating seat.

[0014] A cross plug is fixedly connected above the docking seat, and a cross slot for interference fit with the cross plug is opened below the percussion end.

[0015] With the above scheme, in order to facilitate hitting the percussion end, the docking seat can be removed first before hitting, and then the docking seat is installed after the bolt is completely embedded in the roadway rock wall.

[0016] As a preferred implementation mode of a roadway support structure, the modular anchor net positioning component includes a strip-shaped positioning seat. Two positioning jacks are respectively opened at both ends of the strip-shaped positioning, and two positioning pins two are fixed. Both the positioning pin one and the positioning pin two can be assembled with the positioning jack;

[0017] Above the strip-shaped positioning seat, a clamping seat is installed, and a triangular limiting groove is provided on the clamping seat; the bottom of the clamping seat is fixedly connected with a screw rod, which can slide in the sliding groove provided in the strip-shaped positioning seat, and a nut that can fix the clamping seat is fitted on the screw rod.

[0018] With the above solution, in order to improve the flexibility of fixing the anchor net, the clamping seat for clamping the anchor net is set as a sliding type, which can be adjusted correspondingly according to the spacing of the anchor net, and it will be more flexible when applied.

[0019] As a preferred implementation manner of a roadway support structure, when the modular anchor net positioning component is installed on the symmetric two sides of the bolt positioning component, it is called a two-side support positioning mechanism; when the modular anchor net positioning component is installed on three sides of the bolt positioning component, it is called a three-side support positioning mechanism; when the modular anchor net positioning component is installed on four sides of the bolt positioning component, it is called a four-side support positioning mechanism.

[0020] With the above solution, in order to meet the fixing of the anchor net at different positions, the support positioning mechanism can be specifically assembled as needed; among them, the two-side support positioning mechanism can be used to fix the two sides of the anchor net; the three-side support positioning mechanism can be used to fix the top edge of the anchor net; the four-side support positioning mechanism can be used to fix the center of the top of the anchor net.

[0021] As a preferred implementation manner of a roadway support structure, a plurality of annular grooves for cooperating with the S-shaped hooks are provided on the surface of the reinforcing bar, and each S-shaped hook is respectively located in a different annular groove.

[0022] With the above solution, in order to improve the stability of the S-shaped hook after hanging, it is installed in the annular groove. At this time, the S-shaped hook is in a tensioned state, so as to prevent the S-shaped hook from sliding and improve its stability and reliability after installation.

[0023] A roadway support method, which is implemented by using this roadway support structure, and its specific implementation steps are as follows:

[0024] S1. According to the construction requirements, install the modular anchor net positioning components on the symmetric two sides, three sides and four sides of the bolt positioning component, and assemble them in sequence to form a two-side support positioning mechanism, a three-side support positioning mechanism and a four-side support positioning mechanism; above, the number of modular anchor net positioning components on each side of each group of support positioning mechanisms does not exceed three groups;

[0025] S2. Fix the assembled four-side support positioning mechanism on the top wall of the roadway, so that the four-side support positioning mechanism fixes the center of the top of the anchor net; fix the assembled three-side support positioning mechanism on the top wall of the roadway, so that the three-side support positioning mechanism fixes the top edge of the anchor net; fix the assembled two-side support positioning mechanism on the side wall of the roadway, so that the three-side support positioning mechanism fixes the two sides of the anchor net;

[0026] S3. When installing the support positioning mechanism, first connect the required modular anchor mesh positioning components end to end in sequence, and correspondingly adjust the positions of the clamping seats so that the clamping seats just clamp the anchor mesh correspondingly.

[0027] S4. Insert the bolt without a docking seat at the drilling hole, and use one bolt positioning component to fix multiple modular anchor mesh positioning components at the same time. In this way, the acting area on the anchor mesh is larger, and the number of installed bolt positioning components is less, greatly reducing the workload of the staff.

[0028] S5. Subsequently, install the docking seats on the knocking ends of all bolts in sequence, adjust the orientations of the jacks in two adjacent rotating seats, penetrate a reinforcing bar through the two adjacent jacks, and hang them on the nearby anchor mesh through multiple S-shaped hooks, so that an integral body with mutual restraint is formed between every two groups of bolt positioning components and the anchor mesh, greatly improving the stability of the roadway support.

[0029] After adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0030] 1. The modular anchor mesh positioning components of the roadway support structure can be selectively installed on different sides of the bolt positioning components according to actual position requirements, and the number of modular anchor mesh positioning components on each side can be selectively increased or decreased. The acting area on the anchor mesh is larger, and the number of installed bolt positioning components is less. Secondly, every two adjacent groups of bolt positioning components are connected through a reinforcing bar in a penetrating manner and multiple S-shaped hooks are hung on the nearby anchor mesh, so that an integral body with mutual restraint is formed between every two groups of bolt positioning components and the anchor mesh, and a single bolt positioning component is not easy to fall off, greatly improving the stability of the roadway support.

[0031] 2. In order to fix the anchor mesh, first drill holes in advance on the roadway rock wall, and then insert bolts with barbs at the drilling holes, and use one bolt positioning component to fix multiple modular anchor mesh positioning components at the same time.

[0032] 3. In order to facilitate hitting the knocking end, the docking seat can be removed before hitting, and after the bolt is completely embedded in the roadway rock wall, the docking seat is installed again.

[0033] 4. In order to improve the flexibility of fixing the anchor mesh, the clamping seat for clamping the anchor mesh is set to be sliding type, and can be correspondingly adjusted according to the spacing of the anchor mesh, and it will be more flexible in application.

[0034] 5. To meet the fixation requirements at different positions of the anchor net, the support positioning mechanism can be specifically assembled as needed. Among them, the support positioning mechanisms on both sides can be used to fix both sides of the anchor net; the support positioning mechanism on three sides can be used to fix the top edge of the anchor net; the support positioning mechanism on four sides can be used to fix the center of the top of the anchor net.

[0035] 6. To improve the stability of the S-shaped hook after hanging, it is installed in the annular groove. At this time, the S-shaped hook is in a tensioned state, thus preventing the S-shaped hook from sliding and enhancing its stability and reliability after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a perspective view of the present invention when applied from a bottom-up view.

[0038] Figure 2 It is a perspective view of the present invention when applied from a top-down view.

[0039] Figure 3 For showing Figure 1 A partial perspective view of the location where the reinforcing bars are located.

[0040] Figure 4 It is a perspective view of the present invention when the support positioning mechanism on both sides positions the anchor net.

[0041] Figure 5 It is a perspective view of the present invention when the support positioning mechanism on three sides positions the anchor net.

[0042] Figure 6 It is a perspective view of the present invention when the support positioning mechanism on four sides positions the anchor net.

[0043] Figure 7 For Figures 4 to 6 A perspective view of the bolt positioning assembly.

[0044] Figure 8 For Figure 7 The explosion of Figure 1 ;

[0045] Figure 9 For Figure 7 The explosion of Figure 2 ;

[0046] Figure 10 It is a top-down viewFigures 4 to 6 Stereoscopic structure diagram of the modular anchor net positioning component;

[0047] Figure 11 It is a bottom view Figures 4 to 6 Stereoscopic structure diagram of the modular anchor net positioning component.

[0048] Markings in the figure: 1 - Bolt positioning component; 101 - Ring-shaped positioning seat; 102 - Positioning hole; 103 - Bolt; 104 - Knocking end; 105 - Barbs; 106 - Positioning pin 1; 107 - Docking seat; 108 - Rotating seat; 109 - Socket; 110 - Cross plug; 111 - Cross slot; 2 - Modular anchor net positioning component; 201 - Strip-shaped positioning seat; 202 - Positioning socket; 203 - Positioning pin 2; 204 - Clamping seat; 205 - Screw; 206 - Slide groove; 207 - Nut; 3 - Anchor net; 4 - Reinforcing bar; 5 - S-shaped hook; 6 - Side support positioning mechanism; 7 - Three-side support positioning mechanism; 8 - Four-side support positioning mechanism; 9 - Ring-shaped groove. Specific embodiments

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0050] Such as Figures 1 to 6As shown in the figure, a roadway support structure includes an anchor net 3 and a support positioning mechanism; the support positioning mechanism includes a bolt positioning component 1 and a modular anchor net positioning component 2, wherein the modular anchor net positioning component 2 is used for clamping and positioning the anchor net 3; the modular anchor net positioning component 2 can be detachably installed on all four sides of the bolt positioning component 1, and the modular anchor net positioning component 2 can be selectively installed on any one side, two symmetric sides, any three sides or all four sides of the bolt positioning component 1; adjacent modular anchor net positioning components 2 can be connected end to end, and the number of the modular anchor net positioning components 2 can be selectively increased or decreased; adjacent bolt positioning components 1 are connected through a reinforcing bar 4 running through, and the reinforcing bar 4 is hooked to the nearest anchor net 3 through a plurality of evenly distributed S-shaped hooks 5. The modular anchor net positioning component 2 of the roadway support structure can be selectively installed on different sides of the bolt positioning component 1 according to actual position requirements, and the number of modular anchor net positioning components 2 on each side can be selectively increased or decreased, which has a larger acting area on the anchor net 3 and fewer bolt positioning components 1 installed; secondly, adjacent bolt positioning components 1 are connected through a reinforcing bar 4 running through and a plurality of S-shaped hooks 5 are hooked to the nearest anchor net 3, so that an integral body with mutual restraint is formed between every two bolt positioning components 1 and the anchor net 3, and a single bolt positioning component 1 is not easily detached, greatly improving the stability of roadway support.

[0051] As Figures 7 to 9 shown, the bolt positioning component 1 includes an annular positioning seat 101, a positioning hole 102 is penetrated through the center of the annular positioning seat 101, a bolt 103 embedded in the roadway rock wall is installed in the positioning hole 102, a knocking end 104 with a diameter larger than its rod body is connected to the end of the bolt 103, and a plurality of evenly distributed barbs 105 are connected to the rod body of the bolt 103; two positioning pins one 106 are respectively welded and fixed on the four sides of the annular positioning seat 101, and the modular anchor net positioning component 2 can be quickly installed through the positioning pins one 106. In order to fix the anchor net 3, a hole is drilled in advance on the roadway rock wall, and then the bolt 103 with barbs 105 is embedded at the drilling position, and a plurality of modular anchor net positioning components 2 are fixed by using one bolt positioning component 1 at the same time.

[0052] As Figures 7 to 9As shown in the figure, a docking seat 107 is inserted below the striking end 104. A rotating seat 108 is rotatably installed below the docking seat 107. A jack 109 for cooperating with the reinforcing bar 4 is formed through the end of the rotating seat 108. A cross plug 110 is fixedly connected by welding above the docking seat 107. A cross slot 111 for interference fit with the cross plug 110 is formed below the striking end 104. To facilitate hitting the striking end 104, the docking seat 107 can be removed before hitting. After the bolt 103 is completely embedded in the roadway rock wall, the docking seat 107 is installed again.

[0053] As Figures 10 to 11 shown in the figure, the modular anchor mesh positioning assembly 2 includes a strip-shaped positioning seat 201. Two positioning jacks 202 are respectively formed at both ends of the strip-shaped positioning seat, and two positioning pins two 203 are fixed. Among them, both the positioning pin one 106 and the positioning pin two 203 can be assembled with the positioning jack 202. A clamping seat 204 is installed above the strip-shaped positioning seat 201. A triangular limiting groove is formed in the clamping seat 204. A screw rod 205 is fixedly connected to the bottom of the clamping seat 204. The screw rod 205 can slide in a sliding groove 206 formed in the strip-shaped positioning seat 201. A nut 207 for locking the clamping seat 204 is installed on the screw rod 205. To improve the flexibility of fixing the anchor mesh 3, the clamping seat 204 for clamping the anchor mesh 3 is set to be a sliding type, which can be adjusted correspondingly according to the spacing of the anchor mesh 3, and it will be more flexible when applied.

[0054] As Figures 4 to 6 shown in the figure, when the modular anchor mesh positioning assembly 2 is installed on both sides symmetrical to the bolt positioning assembly 1, it is called a two-side support positioning mechanism 6; when the modular anchor mesh positioning assembly 2 is installed on three sides of the bolt positioning assembly 1, it is called a three-side support positioning mechanism 7; when the modular anchor mesh positioning assembly 2 is installed on four sides of the bolt positioning assembly 1, it is called a four-side support positioning mechanism 8. To meet the fixing of the anchor mesh 3 at different positions, the support positioning mechanism can be specifically assembled according to needs. Among them, the two-side support positioning mechanism 6 can be used to fix both sides of the anchor mesh 3; the three-side support positioning mechanism 7 can be used to fix the top edge of the anchor mesh 3; the four-side support positioning mechanism 8 can be used to fix the center of the top of the anchor mesh 3.

[0055] As Figure 3 shown in the figure, a plurality of annular grooves 9 for cooperating with the S-shaped hooks 5 are formed on the surface of the reinforcing bar 4. Each S-shaped hook 5 is respectively located in a different annular groove 9. To improve the stability of the S-shaped hook 5 after hanging, it is installed in the annular groove 9. At this time, the S-shaped hook 5 is in a tensioned state, so as to prevent the S-shaped hook 5 from sliding and improve the stability and reliability after installation.

[0056] A roadway support method, which is implemented by using this roadway support structure. The specific implementation steps are as follows:

[0057] S1. According to the construction requirements, install the modular anchor mesh positioning components 2 on the two sides, three sides, and four sides symmetrical to the anchor rod positioning component 1, and assemble them in sequence to form the two-side support positioning mechanism 6, the three-side support positioning mechanism 7, and the four-side support positioning mechanism 8. Above, the number of modular anchor mesh positioning components 2 on each side of each group of support positioning mechanisms does not exceed three groups;

[0058] S2. Fix the assembled four-side support positioning mechanism 8 on the top wall of the roadway, so that the four-side support positioning mechanism 8 fixes the top center of the anchor mesh 3; fix the assembled three-side support positioning mechanism 7 on the top wall of the roadway, so that the three-side support positioning mechanism 7 fixes the top edge of the anchor mesh 3; fix the assembled two-side support positioning mechanism 6 on the side wall of the roadway, so that the three-side support positioning mechanism 7 fixes both sides of the anchor mesh 3;

[0059] S3. When installing the support positioning mechanism, first connect the required modular anchor mesh positioning components 2 end to end in sequence, and adjust the positions of the clamp seats 204 correspondingly, so that the clamp seats 204 just clamp the anchor mesh 3 correspondingly;

[0060] S4. Embed the anchor rod 103 without the docking seat 107 at the drilling position, and use one anchor rod positioning component 1 to fix multiple modular anchor mesh positioning components 2 at the same time. In this way, its acting area on the anchor mesh 3 is larger, and the number of installed anchor rod positioning components 1 is less, greatly reducing the workload of the staff;

[0061] S5. Then install the docking seats 107 on the knocking ends 104 of all the anchor rods 103 in sequence, adjust the orientations of the jacks 109 in two adjacent rotating seats 108, and use a reinforcing steel bar 4 to penetrate through the two adjacent jacks 109, and hook them to the nearest anchor mesh 3 through multiple S-shaped hooks 5, so that an integral body with mutual restraint force is formed between each two groups of anchor rod positioning components 1 and the anchor mesh 3, greatly improving the stability of the roadway support.

[0062] The above is only the preferred embodiment of the present invention, and it is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tunnel support structure, comprising an anchor net and a support positioning mechanism; the support positioning mechanism comprises an anchor rod positioning assembly and a modular anchor net positioning assembly, wherein the modular anchor net positioning assembly is used for clamping and positioning the anchor net; Features: The four sides of the anchor rod positioning assembly can be detachably installed with modular anchor net positioning assemblies, and the modular anchor net positioning assemblies can be selectively installed on any one side, two symmetrical sides, any three sides or four sides of the anchor rod positioning assembly; each two adjacent groups of modular anchor net positioning assemblies can be connected end to end, and the number of modular anchor net positioning assemblies can be selectively increased or decreased; Each two adjacent groups of anchor rod positioning components are connected through a reinforcing steel bar, and the reinforcing steel bar is connected to the nearest anchor net through multiple evenly distributed S-shaped hooks.

2. The tunnel support structure according to claim 1, characterized in that: The anchor rod positioning assembly includes an annular positioning seat, a positioning hole is opened through the center of the annular positioning seat, an anchor rod embedded in the stone wall of the tunnel is installed in the positioning hole, the end of the anchor rod is connected to a striking end with a diameter larger than its rod body, and the rod body of the anchor rod is connected to multiple evenly distributed barbs.

3. The tunnel support structure according to claim 2 is characterized in that: A docking seat is inserted below the striking end, a rotating seat is rotatably installed below the docking seat, and a plug hole used in conjunction with the reinforcing steel bar is penetrated through the end of the rotating seat.

4. The tunnel support structure according to claim 3 is characterized in that: A cross plug is fixedly connected to the upper part of the docking seat, and a cross slot which is interference-fitted with the cross plug is provided below the striking end.

5. The tunnel support structure according to claim 4 is characterized in that: Two positioning pins 1 are fixed to the four sides of the annular positioning seat respectively, and the modular anchor net positioning assembly can be quickly installed through the positioning pins 1.

6. The tunnel support structure according to claim 5, characterized in that: The modular anchor net positioning component comprises a strip-shaped positioning seat, two ends of which are respectively provided with two positioning holes and fixed with two second positioning pins, wherein the first positioning pin and the second positioning pin can be assembled with the positioning holes.

7. The tunnel support structure according to claim 6, characterized in that: A clamping seat is installed above the strip-shaped positioning seat, and a triangular limiting groove is opened on the clamping seat; a screw rod is fixedly connected to the bottom of the clamping seat, and the screw rod can slide in a sliding groove opened in the strip-shaped positioning seat, and a nut capable of tightening the clamping seat is installed on the screw rod.

8. The tunnel support structure according to claim 7, characterized in that: When the modular anchor net positioning assembly is installed on two symmetrical sides of the anchor rod positioning assembly, it is called a two-side support positioning mechanism, which is used to fix the two sides of the anchor net; When the modular anchor net positioning assembly is installed on three sides of the anchor rod positioning assembly, it is called a three-side support positioning mechanism, which is used to fix the top edge of the anchor net; When the modular anchor net positioning assembly is installed on the four sides of the anchor rod positioning assembly, it is called a four-side support positioning mechanism, which is used to fix the top center of the anchor net.

9. The tunnel support structure according to claim 8, characterized in that: The surface of the reinforcing steel bar is provided with a plurality of annular grooves used in conjunction with the S-shaped hooks, and each S-shaped hook is located in a different annular groove.

10. A tunnel support method, characterized in that: The tunnel support method is implemented by using the tunnel support structure according to claim 9, and its specific implementation steps are as follows: S1. According to the construction requirements, the modular anchor net positioning components are installed on the two sides, three sides and four sides of the anchor rod positioning components symmetrically, and assembled in sequence to form the two-side support positioning mechanism, the three-side support positioning mechanism and the four-side support positioning mechanism; above, the number of modular anchor net positioning components on each side of each support positioning mechanism shall not exceed three groups; S2. Fix the assembled four-side support positioning mechanism to the top wall of the tunnel so that the four-side support positioning mechanism fixes the top center of the anchor net; fix the assembled three-side support positioning mechanism to the top wall of the tunnel so that the three-side support positioning mechanism fixes the top edge of the anchor net; fix the assembled two-side support positioning mechanism to the side wall of the tunnel so that the three-side support positioning mechanism fixes the two sides of the anchor net; S3. When installing the support positioning mechanism, first connect the required modular anchor net positioning components end to end in sequence, and adjust the position of the clamp seat accordingly so that the clamp seat just corresponds to the clamping anchor net; S4. An anchor rod without a docking seat is embedded in the drill hole, and multiple modular anchor net positioning components are fixed at the same time using one anchor rod positioning component. In this way, the anchor net has a larger effective area, and the number of anchor rod positioning components installed is less, which greatly reduces the workload of the staff; S5. Then install the docking seat on the striking end of all anchor rods in turn, adjust the direction of the sockets in the two adjacent rotating seats, use a reinforcing steel bar to penetrate the two adjacent sockets, and connect them with the nearest anchor net through multiple S-shaped hooks, so that each two sets of anchor rod positioning components and the anchor net form a whole with mutual restraint, which greatly improves the stability of the tunnel support.

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