Roadway supporting method for coping with strong rheological and unstable surrounding rock

Abstract

The invention discloses a roadway supporting method for coping with strong rheological and unstable surrounding rock, and belongs to the technical field of roadway supporting, the roadway supporting method comprises the following steps: S1, wall brushing: spraying a first layer of roadway wall to cover the roadway wall to form a first seal coat; s2, roadway arch supporting is conducted, specifically, a supporting module is erected along the roadway wall, and the outer edge of the supporting module is partially embedded into the first sealing layer; the supporting module, the anchoring module, the outer supporting module and the inner supporting module are matched to form a tough sealing layer-bolting-grouting-pressure relief combined supporting technology, strong supporting resistance is provided through a high-strength flexible sealing layer, and the cohesiveness and shear strength of surrounding rock are enhanced through combined use of grouting and bolting-grouting; the stability of the grouting effect is improved through the characteristics of self-sealing, self-fixing and internal self-closing, the inner supporting module and the outer supporting module form a soft-first and then-rigid supporting structure, and the stability and the supporting effect of the surrounding rock of the deep soft rock roadway of the mine are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of tunnel support technology, specifically to a tunnel support method for dealing with strong rheology and unstable surrounding rock. Background Technology

[0002] After mine roadways are excavated, a high-strength anchor mesh is formed within the roadway using a combination of metal mesh and anchor bolts, covering the surrounding rock from the inside for roadway support. Mine roadways have high original rock stress, large rock strata dip angles, and are rich in clay cement, which cements upon contact with cement, resulting in relatively poor self-stabilizing capacity. During long-term service, they are affected by dynamic pressure, causing localized grout layer detachment from the surrounding rock, manifesting as large deformation and damage characterized by "continuous rheology and asymmetric displacement." Furthermore, mine roadways are buried at depths exceeding one kilometer, resulting in even greater original rock stress. The support method of covering the surrounding rock solely with anchor mesh places continuous stress on the metal mesh, causing continuous movement and deformation. Prolonged compression of the roadway support can easily lead to the breakage and twisting of the formed high-strength anchor mesh. Meanwhile, traditional grouting anchors have low construction efficiency and high sealing difficulty in deep high-pressure environments. They also suffer from problems such as insufficient grout diffusion radius and unstable anchoring force. The collaborative working relationship between the anchor, grout body and surrounding rock is complex, and the interface coordination between strong anchoring and flexible pressure relief is poor. The overall support structure is difficult to achieve the control target of "rigid resistance - local pressure relief", and it is difficult to ensure the long-term stability and safety control of the surrounding rock of the roadway, thus affecting the roadway support effect and the safe construction within the roadway. Summary of the Invention

[0003] To overcome the aforementioned deficiencies of existing technologies, this invention provides a roadway support method for dealing with strong rheological and unstable surrounding rock. A support module, anchoring module, external support module, and internal support module work together to form a strong and tough sealing layer-anchoring-pressure relief combined support technology. The high-strength flexible sealing layer provides strong support resistance while possessing a certain degree of flexibility, capable of absorbing impact energy and preventing overall failure of the surrounding rock. The combined use of grouting and anchoring enhances the cohesion and shear strength of the surrounding rock. Grouting not only reinforces the surrounding rock but also improves the stability of the grouting effect through its self-sealing, self-consolidation, and internal self-closing characteristics. The internal and external support modules simultaneously support the roadway surrounding rock and the sealing layer from both inside and outside, forming a support structure that is first flexible and then rigid from the outside in. The combination of pressure relief technology and anchoring effectively slows down the deformation process of the surrounding rock, optimizes the bearing capacity of the support structure, and significantly improves the stability and support effect of the surrounding rock in deep soft rock roadways, thus solving the problems mentioned in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A tunnel support method for dealing with strong rheology and unstable surrounding rock includes the following steps: S1. Screeding: The first layer of shotcrete is applied to the tunnel wall to form a first sealing layer; S2. Arched tunnel support: Support modules are erected along the tunnel wall, with the outer edge of the support modules embedded inside the first sealing layer; S3. Anchor bolts and shotcrete: Several anchor plates are connected from the inside of the support modules along a designated arc path. The anchor modules are then anchored into the tunnel through the anchor plates and the support modules. Grout is injected into the surrounding rock using a self-sealing, self-fixing, and internally self-closing hollow grouting technique; S4. Repeat shotcrete. S5. Second layer of shotcrete is sprayed from the inside of the support module to cover the first sealing layer and the outer edge of the support module to form a second sealing layer; S6. Outer layer rope: Several outer support modules are fixedly connected from the inside of the support module to the inside of the support module, and the outer support modules are close to the second sealing layer to form a first layer of flexible support surface; S7. Inner layer rope: Several inner support modules corresponding to the outer support modules are fixedly connected from the inside of the outer support modules, and there is a clearance space between the inner support modules and the outer support modules to form a second layer of rigid support surface; S8. Pressure relief: Pressure relief trenches are excavated at the bottom corner of the roadway.

[0005] Furthermore, the support module includes several arched frames and longitudinal steel cables. The arched frames are distributed in a straight line along the tunnel wall, and the longitudinal steel cables are inserted inside the arched frames. The longitudinal steel cables are distributed along the arc edge of the arched frames.

[0006] Furthermore, the anchoring module includes a grouting pipe, an external rubber sleeve, a tensioning cone sleeve, a sleeve, a grout stop plug, a piston shaft, a spring, a pin shaft, and a baffle. The tensioning cone sleeve is fixedly connected to the outer wall of the grouting pipe, and the external rubber sleeve is snapped onto the outside of the grouting pipe and the tensioning cone sleeve. A nut is screwed onto the grouting end of the grouting pipe, and the nut tightens the external rubber sleeve from the rear.

[0007] Furthermore, the sleeve is fixed inside the grouting pipe, the grout stop plug is engaged with the outlet end of the sleeve, the piston shaft is fixedly connected to the grout stop plug and inserted into the sleeve, the pin is fixed inside the grouting pipe, the spring is fixedly connected to the sleeve and the pin, and the baffle is fixed to the front end of the pin.

[0008] Furthermore, the anchor plate is snapped into the inside of the arch frame, and the grouting pipe is inserted into the arch frame and the corresponding anchor plate, with the grouting pipe anchored into the surrounding rock of the roadway.

[0009] Furthermore, the surface of the grouting pipe is provided with a plurality of grouting holes, and the grouting end of the grouting pipe extends to the outside of the anchor plate.

[0010] Furthermore, the external support module includes connecting beams and an external support net. There are two connecting beams, and the external support net is located between the two connecting beams and is fixedly connected to the top of the connecting beams.

[0011] Furthermore, the anchor plate has a positioning groove on its top, the connecting beam is engaged with the corresponding positioning groove, and the outer support net is located inside the longitudinal steel rope.

[0012] Furthermore, the internal support module includes a bottom beam, a buffer strut, and a base frame. There are two bottom beams, and the buffer struts are fixedly connected between the two bottom beams. There are also several buffer struts distributed along the long side of the bottom beams.

[0013] Furthermore, the bottom beam is located below the corresponding anchor plate, and two symmetrically distributed base frames are fixedly connected to the bottom of the bottom beam. The base frames are engaged with the outer side of the grouting end of the corresponding grouting pipe, and a support is fixedly connected to the outer side of the grouting end of the grouting pipe. The base frame is inserted into the corresponding support.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a combination of support modules, anchoring modules, external support modules, and internal support modules to form a strong and tough sealing layer-anchoring-pressure relief joint support technology. The outer edge of the support module is embedded inside the first sealing layer formed by shotcreting in the roadway wall. The anchoring module uses a self-sealing, self-fixing, and internally self-closing hollow grouting technology to inject grout into the surrounding rock of the roadway. The combined use of grouting and anchoring enhances the cohesion and shear strength of the surrounding rock, increases the diffusion radius of the grout, and improves the cementation effect of the surrounding rock. A second shotcreting is performed from the inner area of ​​the support module, covering the first sealing layer and the outer edge of the support module to form a second sealing layer. This can form a high-strength and high-toughness double-layer support sealing layer on the periphery of the roadway surrounding rock, connecting the surrounding rock structure into a whole, providing strong support resistance, and at the same time possessing a certain degree of flexibility, which can absorb impact energy and prevent overall damage to the surrounding rock.

[0015] 2. In this invention, the outer support module and the inner support module cover the surrounding rock of the roadway sequentially from the outside to the inside. The two work together to form a first layer of flexible support surface and a second layer of rigid support surface around the second sealing layer. When the surrounding rock of the roadway deforms or the shotcrete layer falls off, the outer support module first provides flexible support to the deformable area, allowing the surrounding rock to release some deformation energy. When the several buffer struts on the inner support module are compressed and move inward, they will gradually contract and recover from the extended state, gradually changing from the flexible state to the rigid state, forming a high-resistance rigid support to suppress the deformation of the surrounding rock of the roadway. This can achieve a certain degree of flexible pressure relief and rigid support after the subsequent movement of the surrounding rock of the roadway. It can effectively adapt to and slow down the deformation process of the surrounding rock. The multi-point support in different areas can improve the bearing capacity and support effect of the support structure, significantly improve the stability and support effect of the surrounding rock in the deep soft rock roadway of the mine, and improve the construction safety in the roadway. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments, the accompanying drawings will be briefly described below.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a front view structural diagram of the present invention; Figure 4 This is a top view of the structure of the present invention; Figure 5 This is a schematic diagram of the partially separated structure of the present invention; Figure 6 This is a schematic diagram of the anchoring module in this invention; In the diagram: 1. Support module; 11. Arch frame; 12. Longitudinal steel rope; 2. Anchoring module; 21. Grouting pipe; 211. Grouting hole; 212. Nut; 22. External rubber sleeve; 23. Tensioning cone sleeve; 24. Sleeve; 25. Grout stop plug; 26. Piston shaft; 27. Spring; 28. Pin shaft; 29. ​​Baffle; 3. Anchoring plate; 31. Positioning groove; 4. External support module; 41. Connecting beam; 42. External support net; 5. Internal support module; 51. Bottom beam; 52. Buffer strut; 53. Base frame; 6. Support platform. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Specific mechanical structures of the present invention will be described in conjunction with the following references. Figures 1 to 6 The detailed description of the structure will be clearly presented. All structural details mentioned in the following embodiments are based on the accompanying drawings.

[0019] Please see Figures 1-6 In this embodiment of the invention, a roadway support method for dealing with strong rheology and unstable surrounding rock is provided, the roadway support method being as follows: S1, Sidewall brushing: The first layer of shotcrete is applied to the roadway wall to form a first sealing layer; S2, Roadway arch support: Support modules 1 are erected along the roadway wall, with the outer edge of the support modules 1 embedded inside the first sealing layer; S3, Anchor bolts and shotcrete: Several anchor plates 3 are connected from the inside of the support modules 1 along a specified arc path, and anchor modules 2 are anchored into the roadway through the anchor plates 3 and the support modules 1. The anchor modules 2 are then injected into the surrounding rock of the roadway using a self-sealing, self-fixing, and internally self-closing hollow grouting technology. S4, Secondary spraying: The second layer of grout is sprayed from the inside of the support module 1, covering the first sealing layer and the outer edge of the support module 1 to form a second sealing layer; S5, Outer layer rope: Several outer support modules 4 are fixedly connected from the inside of the support module 1 to the inside of the support module 1, and the outer support modules 4 are close to the second sealing layer to form the first layer of flexible support surface; S6, Inner layer rope: Several inner support modules 5 corresponding to the outer support modules 4 are fixedly connected from the inside of the outer support modules 4, and there is a clearance space between the inner support modules 5 and the outer support modules 4 to form the second layer of rigid support surface; S7, Pressure relief: Pressure relief trenches are excavated at the bottom corner of the roadway.

[0020] Support module 1 is installed along the roadway wall inside the mine roadway, acting as a framework to connect anchoring module 2, anchoring plate 3, outer support module 4, and inner support module 5 within the roadway. Support module 1 consists of several arched frames 11 and longitudinal steel cables 12. The arched frames 11 are linearly distributed along the roadway wall, and the longitudinal steel cables 12 are inserted inside the arched frames 11, distributed along the arc edges of the arched frames 11, thus stably connecting the arched frames 11. The roadway wall undergoes a first layer of shotcrete, covering the roadway wall to form a first sealing layer. The outer edges of the arched frames 11 are embedded within the first sealing layer to connect support module 1 and the first sealing layer.

[0021] Several anchoring modules 2 are connected to the support module 1 via anchoring plates 3 at corresponding positions and anchored into the tunnel. Anchoring module 2 consists of a grouting pipe 21, an external rubber sleeve 22, a tensioning cone sleeve 23, a sleeve 24, a grout-stopping plug 25, a piston shaft 26, a spring 27, a pin 28, and a baffle 29. The tensioning cone sleeve 23 is fixedly connected to the outer wall of the grouting pipe 21. The external rubber sleeve 22 is engaged with the outside of the grouting pipe 21 and the tensioning cone sleeve 23. A nut 212 is screwed onto the grouting end of the grouting pipe 21, and the nut 212 tightens the external rubber sleeve 22 from the rear, effectively securing the external rubber sleeve 22 to the outside of the grouting pipe 21 and the tensioning cone sleeve 23. The anchoring plate 3 is engaged with the inside of the arch frame 11 and can be fixed to the arch frame 11 from the outside using external bolts. The grouting pipe 21 is inserted into the arch frame 11 and the corresponding anchor plate 3. The grouting pipe 21 is anchored into the surrounding rock of the roadway. Then, by operating the nut 212, the grouting pipe 21 can be self-secured in the anchor hole in the surrounding rock of the roadway. Several grouting holes 211 are opened on the surface of the grouting pipe 21. The grouting end of the grouting pipe 21 extends to the outside of the anchor plate 3 so as to inject grout into the surrounding rock of the roadway through the grouting pipe 21. The grout is released into the anchor hole in the surrounding rock of the roadway through the several grouting holes 211, thus completing the anchoring operation of the surrounding rock of the roadway.

[0022] The casing 24 is fixed inside the grouting pipe 21. The grout stop plug 25 is engaged with the outlet end of the casing 24. The piston shaft 26 is fixedly connected to the grout stop plug 25 and inserted into the casing 24. The pin shaft 28 is fixed inside the grouting pipe 21. The spring 27 is fixedly connected to the casing 24 and the pin shaft 28. The baffle 29 is fixed to the front end of the pin shaft 28, stably connecting the casing 24, the grout stop plug 25, the piston shaft 26, the spring 27, the pin shaft 28, and the baffle 29 inside the grouting pipe 21. The grouting pipe 21 is connected to the support module 1 through the anchor plate 3. The anchor module 2 is positioned as a whole on the corresponding position on the arch frame 11. The grouting pipe 21 is anchored into the corresponding anchor hole on the surrounding rock of the roadway. After the grouting pipe 21 is fixed by the operating nut 212, grout is injected into the grouting pipe 21 from the grouting end located below the anchor plate 3. Through the coordinated action of the pin 28, spring 27, grout stop plug 25, sleeve 24, and piston shaft 26 arranged sequentially inside the grouting pipe 21 from front to back, the grout impacts the piston shaft 26 and sleeve 24. The piston shaft 26 controls the grout stop plug 25 to move towards the pin 28, creating space for the grout to pass through the sleeve 24 and continue moving. The grout then passes through the baffle 29 and enters the area where the grouting hole 211 is located on the grouting pipe 21, so that the grout can be released outward into the surrounding rock of the roadway through the grouting hole 211. The grouting pressure can be gradually controlled to allow for large-scale grouting deep into the surrounding rock of the roadway. After grouting is completed, the grout stop plug 25 is reset to the inside of the sleeve 24 by the spring 27. The reset of the grout stop plug 25 realizes the rapid internal self-closure of the grouting pipe 21. Through the hollow grouting technology of strong self-sealing, high strength self-solidification and rapid internal self-closure, pressure stabilization and pressure retention grouting are achieved, the diffusion radius of the grout is increased, the cementing effect of the surrounding rock is improved, the support module 1, anchor plate 3 and anchor module 2 are connected into a whole and anchored to the roadway wall as a whole, thereby improving the anchoring effect of the roadway surrounding rock.

[0023] The outer edge of the support module 1 is embedded inside the first sealing layer formed by shotcreting in the roadway wall. Several anchoring modules 2 are anchored into the roadway through anchoring plates 3 at corresponding positions. After grouting through the anchoring modules 2, a second shotcreting is performed from the inner area of ​​the support module 1 to cover the first sealing layer and the outer edge of the support module 1 to form a second sealing layer. This can form a high-strength and high-toughness double-layer support sealing layer on the periphery of the roadway surrounding rock, connecting the surrounding rock structure into a whole to provide strong support resistance, ensuring that the roadway surrounding rock does not suffer overall failure when rockburst occurs, providing a safe space, and reducing the safety threat of impact energy to personnel.

[0024] The external support module 4 consists of two connecting beams 41 and an external support net 42. The external support net 42 is located between the two connecting beams 41 and is fixedly connected to the top of the connecting beams 41, stably connecting the external support net 42 and the two connecting beams 41 to form an integral structure. The anchor plate 3 has a positioning groove 31 on its top, and the connecting beams 41 engage with the corresponding positioning groove 31 to facilitate the fixed-point connection of the external support module 4 to the support module 1. The external support net 42 is located inside the longitudinal steel rope 12, which is embedded inside the second sealing layer, allowing the external support net 42 to adhere tightly to the second sealing layer from its outer edge.

[0025] The internal support module 5 consists of two bottom beams 51, buffer struts 52, and a base frame 53. Two bottom beams 51 are present, and several buffer struts 52 are fixedly connected between them. These buffer struts 52 are distributed along the long side of the bottom beams 51. The bottom beams 51 are located below the corresponding anchor plates 3. Two symmetrically distributed base frames 53 are fixedly connected to the bottom of the bottom beams 51, stably combining the bottom beams 51, buffer struts 52, and base frames 53. The base frame 53 is engaged with the outer side of the grouting end of the corresponding grouting pipe 21. A support platform 6 is fixedly connected to the outer side of the grouting end of the grouting pipe 21, and the base frame 53 is inserted into the corresponding support platform 6. This allows the internal support module 5 to stably connect to the corresponding grouting pipe 21. Simultaneously, the base frame 53 can abut against the anchor plate 3 from below, reinforcing the anchor plate 3. The base frame 53 can move vertically inside the support platform 6, allowing the corresponding bottom beam 51 to move downwards below the outer support module 4 when the buffer strut 52 is under stress, causing the extended buffer strut 52 to gradually contract and return to its original position. The buffer strut 52 consists of a central connecting pipe and multiple outer clamps. The contraction and return of the central connecting pipe allows adjacent clamps to lock together, causing the buffer strut 52 to gradually change from a flexible state to a rigid state. This allows the inner support module 5 to provide rigid support to the surrounding rock of the roadway and the outer support net 42 from the inner area of ​​the outer support module 4.

[0026] Several outer support modules 4, covering the surrounding rock of the roadway and closely attached to the second sealing layer, are fixedly connected to the inner side of the support module 1. Simultaneously, several corresponding outer support modules 4 are also connected to the inner side of the support module 1, along with an inner support module 5 located inside the outer support modules 4. Together, these form a first flexible support surface and a second rigid support surface around the second sealing layer, providing strong support resistance to the sealing layer and the surrounding rock of the roadway from the outer perimeter of the second sealing layer. The longitudinal steel rope 12, embedded inside the sealing layer, achieves a certain degree of flexible pressure relief. When deformation occurs in the surrounding rock of the roadway or the shotcrete layer falls off, the outer support net 42 on the outer support module 4 first provides flexible support to the deformation area, allowing the surrounding rock to release some of its deformation energy. The outer support net 42 undergoes large-scale deformation to move downwards towards the corresponding buffer strut 52 on the inner support module 5. As several buffer struts 52 continue to move inwards under pressure, they gradually contract and recover from their extended state, transforming from a flexible state to a rigid state, forming a high-resistance rigid support to suppress the deformation of the surrounding rock in the roadway. This system can achieve a certain degree of flexible pressure relief and rigid support after subsequent roadway surrounding rock activity, effectively adapting to and slowing down the deformation process of the surrounding rock. Multi-point support in zones improves the load-bearing capacity and support effect of the support structure.

[0027] The support module 1, anchoring module 2, external support module 4, and internal support module 5 work together to form a strong and tough sealing layer-anchoring-pressure relief combined support technology. This technology provides strong support resistance through a high-strength, flexible sealing layer, while also possessing a certain degree of flexibility to absorb impact energy and prevent overall rock failure. The combined use of grouting and anchoring enhances the cohesion and shear strength of the surrounding rock. Grouting not only reinforces the surrounding rock but also improves the stability of the grouting effect through its self-sealing, self-consolidation, and internal self-closing characteristics. Simultaneous internal and external support of the roadway surrounding rock and sealing layer forms a support structure that is first flexible and then rigid from the outside in. The combination of pressure relief technology and anchoring effectively slows down the deformation process of the surrounding rock, optimizes the load-bearing capacity of the support structure, and significantly improves the stability and support effect of the surrounding rock in deep soft rock roadways, thereby enhancing construction safety within the roadway.

[0028] The working principle of this invention is as follows: S1, Sweeping: The first layer of grout is sprayed onto the tunnel wall to form a first sealing layer; S2, Arch support of the tunnel: Support modules 1 are erected along the tunnel wall, with the outer edge of the support modules 1 embedded inside the first sealing layer; S3, Anchor bolts and grouting: Several anchor plates 3 are connected from the inside of the support modules 1 along a designated arc path, and the anchor modules 2 are anchored into the tunnel through the anchor plates 3 and the support modules 1. Grouting is injected into the surrounding rock of the tunnel by the anchor modules 2 using self-sealing, self-fixing, and internally self-closing hollow grouting technology; S4, Re-grouting: Grouting is performed from the inside of the support modules 1. The second layer of shotcrete is applied to the side, covering the first sealing layer and the outer edge of the support module 1 to form the second sealing layer; S5, outer layer rope: several outer support modules 4 are fixedly connected from the inner side of the support module 1 to the inside of the support module 1, and the outer support modules 4 are close to the second sealing layer to form the first layer of flexible support surface; S6, inner layer rope: several inner support modules 5 corresponding to the outer support modules 4 are fixedly connected from the inner side of the outer support modules 4, and there is a clearance space between the inner support modules 5 and the outer support modules 4 to form the second layer of rigid support surface; S7, pressure relief: pressure relief trenches are excavated at the bottom corner of the roadway.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A method of roadway support against strong rheology and unstable surrounding rock, characterized in that, Its roadway support method is as follows: S1, brush: the first layer of roadway wall is sprayed, and the first sealing layer is formed on the roadway wall; S2, roadway arch support: support modules (1) are erected along the roadway wall, the outer edge part of the support module (1) is embedded into the first sealing layer; S3, anchor rod, spraying: a plurality of anchor plates (3) are connected from the inside of the support module (1) along the specified arc path, the anchor module (2) is anchored into the roadway through the anchor plate (3) and the support module (1), the hollow grouting technology of self-sealing, self-fixing and internal self-closing is adopted by the anchor module (2), and grouting is injected into the surrounding rock inside the roadway; S4, re-spraying: the second layer of spraying is sprayed from the inside of the support module (1), the first sealing layer and the outer edge part of the support module (1) are covered to form the second sealing layer; S5, outer rope: a plurality of outer support modules (4) are connected from the inside of the support module (1) to the inside of the support module (1), the outer support module (4) is tightly attached to the second sealing layer to form the first layer of flexible support surface; S6, inner layer hanging rope: a plurality of inner support modules (5) corresponding to the outer support module (4) are connected from the inside of the outer support module (4), the inner support module (5) and the outer support module (4) have a space to form the second layer of rigid support surface; S7, pressure relief: the roadway bottom corner is excavated to form a pressure relief groove.

2. A method of roadway support against strong flow and unstable surrounding rock according to claim 1, characterized in that, The support module (1) comprises a plurality of arch frames (11) and longitudinal steel ropes (12), a plurality of the arch frames (11) are linearly distributed along the roadway wall, the longitudinal steel ropes (12) are inserted into a plurality of the arch frames (11), and a plurality of the longitudinal steel ropes (12) are distributed along the arc edge of the arch frame (11).

3. A method of roadway support against strong flow and unstable surrounding rock according to claim 2, characterized in that, The anchor module (2) comprises a grouting pipe (21), an external rubber sleeve (22), a tensioning cone sleeve (23), a sleeve (24), a grout stopper (25), a piston shaft (26), a spring (27), a pin shaft (28) and a baffle (29), the tensioning cone sleeve (23) is fixedly connected to the outer wall of the grouting pipe (21), the external rubber sleeve (22) is clamped and connected to the outside of the grouting pipe (21) and the tensioning cone sleeve (23), and the grouting end of the grouting pipe (21) is screwed with a nut (212). The nut (212) fastens the external rubber sleeve (22) from the rear.

4. A method of roadway support against strong rheology and unstable surrounding rock according to claim 3, characterized in that, The sleeve (24) is fixed in the grouting pipe (21), the grout stopper (25) is clamped and connected to the outlet end of the sleeve (24), the piston shaft (26) is fixedly connected to the grout stopper (25) and is inserted into the sleeve (24), the pin shaft (28) is fixed in the grouting pipe (21), the spring (27) is fixedly connected to the sleeve (24) and the pin shaft (28), and the baffle (29) is fixed to the front end of the pin shaft (28).

5. A method of roadway support against strong rheology and unstable surrounding rock according to claim 3, characterized in that, The anchor plate (3) is clamped and connected in the arch frame (11), the grouting pipe (21) is inserted into the arch frame (11) and the corresponding anchor plate (3), and the grouting pipe (21) is anchored into the surrounding rock inside the roadway.

6. A method of roadway support against strong rheology and unstable surrounding rock according to claim 3, characterized in that, The surface of the grouting pipe (21) is provided with a plurality of grouting holes (211), and the grouting end of the grouting pipe (21) extends to the outside of the anchor plate (3).

7. A method of roadway support against strong rheology and unstable surrounding rock according to claim 2, characterized in that, The outer support module (4) comprises a connecting beam (41) and an outer support net (42), the number of the connecting beam (41) is two, the outer support net (42) is located between the two connecting beams (41), and the outer support net (42) is fixedly connected to the top of the connecting beam (41).

8. A method of roadway support against strong rheology and unstable surrounding rock according to claim 7, characterized in that, The top of the anchor plate (3) is provided with a positioning groove (31), the connecting beam (41) is clamped and connected in the corresponding positioning groove (31), and the outer support net (42) is located on the inner side of the longitudinal steel rope (12).

9. A method of roadway support against strong rheology and unstable surrounding rock according to claim 3, characterized in that, The inner support module (5) comprises a bottom beam (51), a buffer support rod (52) and a bottom frame (53), the number of the bottom beam (51) is two, the buffer support rod (52) is fixedly connected between the two bottom beams (51), the number of the buffer support rod (52) is several, and the several buffer support rods (52) are distributed along the long side of the bottom beam (51).

10. A method of roadway support against strong rheology and unstable surrounding rock according to claim 9, characterized in that, The bottom beam (51) is located below the corresponding anchor plate (3), the bottom of the bottom beam (51) is fixedly connected with two symmetrically distributed bottom frames (53), the bottom frame (53) is clamped and connected outside the grouting end of the corresponding grouting pipe (21), the grouting end of the grouting pipe (21) is fixedly connected with a supporting table (6), and the bottom frame (53) is inserted into the corresponding supporting table (6).

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