Pre-controlled roof supporting device for stope

Abstract

The utility model provides a stope top pre-control supporting device which comprises a supporting beam with a preset width, and the supporting beam is arranged in a stope roadway and used for supporting the two sides and a top plate of the stope roadway. The outer wall, corresponding to the two sides and the top plate of the stope roadway, of the anchor rod is connected with the two sides and the top plate of the stope roadway through a plurality of anchor rods and a plurality of anchor cables which are arranged in a staggered mode. The first reinforcing assembly is vertically arranged in the stope roadway, and the top end of the first reinforcing assembly is arranged on the inner wall, corresponding to a top plate of the stope roadway, of the supporting beam; the second reinforcing assembly is horizontally arranged in the stope roadway, and the two ends of the second reinforcing assembly are arranged on the two inner walls, corresponding to the two sides of the stope roadway, of the supporting beam correspondingly; wherein the first reinforcing assembly and the second reinforcing assembly are used for reinforcing the supporting beam. Through the arrangement of the supporting beams, the first reinforcing assemblies and the second reinforcing assemblies, the stability of the stope roadway is improved, and then safety and stable production of a stope are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stope support, in particular to a stope pre-control roof support device. BACKGROUND

[0002] With the continuous development of the coal mining industry, the types of coal occurrence in China are diverse, the mining environment is complex, and the mining influence is generally strong. Under the current historical necessity and industry development, the shallow coal resources in China have been greatly reduced, and coal resource mining has gradually shifted to the deep part, which has increased the number of soft rock mines in China. In this process, the problem of broken and soft roof in the roadway has become more prominent, which has a great impact on underground safety production. As a common form of roadway roof, the soft roof is prone to delamination and collapse after being disturbed by mining, and even some stope areas collapse in the mining process, which poses a serious threat to the on-site workers and equipment, and causes the dilution and loss of stope ore, affecting normal production capacity. Therefore, in order to realize the safety and stable production of the stope, the present application provides a stope pre-control roof support device. CONTENT OF THE INVENTION

[0003] The present application provides a stope pre-control roof support device to solve the technical problems described in the background.

[0004] The present application provides a stope pre-control roof support device, which comprises:

[0005] A support beam with a predetermined width is arranged in the stope roadway and used to support the two sides and the roof of the stope roadway, and the outer wall corresponding to the two sides and the roof of the stope roadway is connected to the two sides and the roof of the stope roadway through a plurality of anchor rods and a plurality of anchor cables arranged alternately.

[0006] A first reinforcing assembly is vertically arranged in the stope roadway, and the top end of the first reinforcing assembly is arranged on the inner wall corresponding to the support beam and the roof of the stope roadway.

[0007] A second reinforcing assembly is horizontally arranged in the stope roadway, and the two ends of the second reinforcing assembly are arranged on the two inner walls corresponding to the support beam and the two sides of the stope roadway, respectively.

[0008] The first reinforcing assembly and the second reinforcing assembly are used to reinforce the support beam.

[0009] Optionally, the support beam comprises a first vertical section, an arc-shaped section and a second vertical section connected in sequence.

[0010] The top surface of the first vertical section and the top surface of the second vertical section are provided with insertion rods, and the bottom surfaces of the two opposite bottom ends of the arc-shaped section are respectively provided with insertion holes corresponding to and matching the insertion rods on the first vertical section and the insertion rods on the second vertical section.

[0011] Optionally, the angles between the anchor rods and the anchor cables arranged on the outer walls corresponding to the two sides of the stope roadway and the horizontal plane in the stope roadway are 30°-70°.

[0012] Optionally, the first reinforcing assembly comprises a first telescopic member and a plurality of second telescopic members.

[0013] The first telescopic member and the plurality of second telescopic members are vertically arranged in the stope roadway, and the top ends thereof are connected to the inner walls of the roof of the stope roadway corresponding to the support beam, and the plurality of second telescopic members are uniformly distributed on both sides of the first telescopic member and symmetric about the first telescopic member.

[0014] Optionally, the bottom ends of the first telescopic member and the plurality of second telescopic members are connected to the floor of the stope roadway through first anchor bolts.

[0015] The inner walls of the roof of the stope roadway corresponding to the support beam are provided with a plurality of first fixing holes, and the plurality of first fixing holes correspond to and match the top ends of the first telescopic member and the plurality of second telescopic members.

[0016] Optionally, the second reinforcing assembly comprises a horizontal reinforcing rod and a horizontal reinforcing cylinder connected by a fastener.

[0017] One end of the horizontal reinforcing rod and one end of the horizontal reinforcing cylinder are respectively arranged on the inner walls of the support beam away from the two sides of the stope roadway, and the end of the horizontal reinforcing rod away from the support beam extends into the horizontal reinforcing cylinder from the end of the horizontal reinforcing cylinder away from the support beam.

[0018] Optionally, the support beam is provided with two second fixing holes on the two inner walls corresponding to the two sides of the stope roadway, one of the second fixing holes corresponds to and matches the end of the horizontal reinforcing rod away from the horizontal reinforcing cylinder, and the other second fixing hole corresponds to and matches the end of the horizontal reinforcing cylinder away from the horizontal reinforcing rod.

[0019] Optionally, the bottom end of the support beam is provided with a support base connected to the floor of the stope roadway through a second anchor bolt.

[0020] The support beam is made of reinforced concrete.

[0021] Optionally, the plurality of anchor cables are resin anchor cables.

[0022] The stope pre-controlling roof supporting device provided by the application supports the roof and two sides in the stope roadway through the support beam, and the support beam is tightly connected with the roof and two sides in the stope roadway through the plurality of anchor rods and the plurality of anchor cables distributed at equal intervals and staggered, the plurality of anchor rods combine the thin layer of rock in the stope roadway into a rock beam, thereby enhancing the bearing capacity of the surrounding rock in the stope roadway, the plurality of anchor cables apply prestress to the surrounding rock in the stope roadway and stabilize the surrounding rock in the stope roadway through the prestress, thereby ensuring the safety of the stope roadway, that is, the combined action of the anchor rods and the anchor cables in the application ensures the long-term stability and safety of the roadway. In addition, the support beam is vertically supported through the first reinforcing assembly and horizontally supported through the second reinforcing assembly, thereby improving the stability of the support beam in supporting the roof and two sides in the stope roadway and further improving the stability of the stope roadway, thereby ensuring the safety and stable production of the stope. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0024] Figure 1 The structural schematic diagram of the stope pre-controlling roof supporting device provided by an embodiment of the application is arranged in the stope roadway;

[0025] Figure 2 The structural schematic diagram of the stope pre-controlling roof supporting device provided by an embodiment of the application is arranged in the stope roadway;

[0026] Figure 3 The structural schematic diagram of the stope pre-controlling roof supporting device provided by another embodiment of the application is arranged in the stope roadway;

[0027] Figure 4 The structural schematic diagram of the stope pre-controlling roof supporting device provided by another embodiment of the application is arranged in the stope roadway;

[0028] Figure 5 The structural schematic diagram of the stope pre-controlling roof supporting device provided by an embodiment of the application is arranged in the stope roadway;

[0029] Figure 6 The structural schematic diagram of the stope pre-controlling roof supporting device provided by an embodiment of the application is arranged in the stope roadway;

[0030] In the figure: 100, support beam; 101, first vertical section; 1011, plug rod; 102, arc section; 1021, plug hole; 103, second vertical section; 104, first fixing hole; 105, second fixing hole; 106, support base; 200, stope roadway; 300, anchor rod; 400, anchor cable; 500, first reinforcing assembly; 501, first telescopic piece; 502, second telescopic piece; 600, second reinforcing assembly; 601, horizontal reinforcing rod; 602, horizontal reinforcing cylinder; 700, first anchor bolt; 800, fastener; 900, second anchor bolt. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0032] Reference Figures 1 to 6 The present application provides a stope pre-control roof supporting device, comprising:

[0033] The support beam 100 with a preset width is arranged in the stope roadway 200 and is used for supporting the two sides and the roof of the stope roadway 200, and the outer wall corresponding to the two sides and the roof of the stope roadway 200 is connected with the two sides and the roof of the stope roadway 200 through the staggered arrangement of the plurality of anchor rods 300 and the plurality of anchor cables 400. The preset width is to ensure that the support beam 100 can stably support the stope roadway 200 within a certain range, so that the specific value of the preset width can be set according to actual needs, and the present application does not make a specific limitation here.

[0034] The first reinforcing assembly 500 is vertically arranged in the stope roadway 200, and the top end thereof is arranged on the inner wall corresponding to the support beam 100 and the roof of the stope roadway 200. The first reinforcing assembly 500 is used for vertically supporting the support beam 100, so as to improve the supporting effect of the support beam 100 on the roof of the stope roadway 200, so as to avoid the risk of collapse of the roof of the stope roadway 200 in the mining process.

[0035] The second reinforcing assembly 600 is horizontally arranged in the stope roadway 200, and two ends thereof are arranged on the two inner walls corresponding to the two sides of the stope roadway 200 respectively. The second reinforcing assembly 600 is used for supporting the opposite two sides of the support beam 100, so as to ensure that the support beam 100 stably supports the two sides of the stope roadway 200, and avoid the risk of separation and collapse of the stope roadway 200 in the mining process.

[0036] The first reinforcing assembly 500 and the second reinforcing assembly 600 are used for reinforcing the support beam 100. The support beam 100 is used for supporting and reinforcing the stope roadway 200, the first reinforcing assembly 500 is used for vertically supporting the support beam 100, and the second reinforcing assembly 600 is used for horizontally supporting the support beam 100, so as to further improve the stability of the support beam 100 in supporting the stope roadway 200.

[0037] The stope pre-control roof supporting device provided by the application supports the roof and the two sides in the stope roadway 200 through the support beam 100, and tightly connects the support beam 100 and the roof and the two sides of the stope roadway 200 through the multiple anchor rods 300 and the multiple anchor cables 400 distributed at equal intervals and staggered, the multiple anchor rods 300 combine the thin layer of rock in the stope roadway 200 into a rock beam, so as to enhance the bearing capacity of the surrounding rock in the stope roadway 200, the multiple anchor cables 400 apply prestress to the surrounding rock in the stope roadway 200 and stabilize the surrounding rock in the stope roadway 200 through the prestress, so as to ensure the safety of the stope roadway 200, that is, the cooperation of the anchor rods 300 and the anchor cables 400 in the application ensures the long-term stability and safety of the stope roadway 200. In addition, the first reinforcing assembly 500 vertically supports the support beam 100, and the second reinforcing assembly 600 horizontally supports the support beam 100, so as to further improve the stability of the support beam 100 in supporting the roof and the two sides in the stope roadway 200, further improve the stability of the stope roadway 200, and ensure the safety and stable production of the stope.

[0038] In some embodiments, reference is made to Figures 1 to 4The support beam 100 in the application comprises a first vertical section 101, an arc-shaped section 102 and a second vertical section 103 connected in sequence; specifically, the top surface of the first vertical section 101 and the top surface of the second vertical section 103 are both provided with a plug rod 1011, and the bottom surfaces of the two opposite bottom ends of the arc-shaped section 102 are both provided with a plug hole 1021 corresponding to and matching the plug rod 1011 on the first vertical section 101 and the plug rod 1011 on the second vertical section 103. The arc-shaped section 102 is inserted with the plug rod 1011 on the first vertical section 101 and the plug rod 1011 on the second vertical section 103 through the plug hole 1021 thereon, so as to facilitate the combination of the first vertical section 101, the arc-shaped section 102 and the second vertical section 103 to form the support beam 100, the installation and disassembly of the first vertical section 101, the arc-shaped section 102 and the second vertical section 103, and the disassembly of the support beam 100 is carried out outside the mining roadway 200. The arc-shaped section 102 after disassembly can be used to match the first vertical section 101 and the second vertical section 103 of various heights, so that the assembled support beam 100 can be applied to mining roadways 200 of different heights.

[0039] In addition, in order to ensure the stability of the connection between the arc-shaped section 102 and the first vertical section 101 and the second vertical section 103, the plug hole 1021 at each bottom end of the arc-shaped section 102 can have multiple, and the top surface of the first vertical section 101 and the top surface of the second vertical section 103 can have plug rods 1011 corresponding to the multiple plug holes 1021 respectively, and the number of plug holes 1021 can be set according to the size of the arc-shaped section 102, and the number of plug rods 1011 on the first vertical section 101 and the second vertical section 103 can be set according to the size of the first vertical section 101 and the second vertical section 103. Therefore, the application does not make specific limitations here.

[0040] In some embodiments, with reference to Figures 1 to 6 The first vertical section 101 and the second vertical section 103 in the application and the anchor rods 300 and the anchor cables 400 arranged on the outer walls corresponding to the two sides of the mining roadway 200 have an included angle of 30°-70° between the horizontal plane in the mining roadway 200, that is, the first vertical section 101 and the second vertical section 103 are arranged with the anchor rods 300 and the anchor cables 400 on the outer walls corresponding to the two sides of the mining roadway 200, and the inclined arrangement of the anchor rods 300 and the anchor cables 400 can effectively reduce the displacement of the two sides of the mining roadway 200, improve the shear performance of the rock, and enhance the support strength of the two sides of the roof of the mining roadway 200, thereby improving the stability of the two sides of the mining roadway 200.

[0041] In some embodiments, with reference to Figures 1 to 4The first reinforcing assembly 500 in the application includes a first telescopic piece 501 and a plurality of second telescopic pieces 502. Specifically, the first telescopic piece 501 and the plurality of second telescopic pieces 502 are vertically arranged in the stope roadway 200, and the top ends thereof are connected to the inner wall of the roof of the stope roadway 200 corresponding to the support beam 100. The plurality of second telescopic pieces 502 are uniformly distributed on both sides of the first telescopic piece 501 and symmetric about the first telescopic piece 501. The first telescopic piece 501 and the plurality of second telescopic pieces 502 can be hydraulic cylinders, which can be set according to actual needs, and the application does not make specific limitations here.

[0042] In the above embodiment, the middle part of the support beam 100 is supported by the first telescopic piece 501, and the plurality of second telescopic pieces 502 are uniformly distributed on both sides of the first telescopic piece 501 and symmetric about the first telescopic piece 501, thereby improving the stability of the plurality of second telescopic pieces 502 supporting the support beam 100. In addition, the first telescopic piece 501 and the second telescopic piece 502 can be adjusted according to the distance between the floor of the stope roadway 200 and the roof of the stope roadway 200, so that the first telescopic piece 501 and the second telescopic piece 502 can support multiple heights between the floor of the stope roadway 200 and the roof of the stope roadway 200, thereby improving the wide applicability of the first reinforcing assembly 500.

[0043] In some embodiments, with reference to Figure 2 and Figure 3 The bottom end of the first telescopic piece 501 and the bottom end of the plurality of second telescopic pieces 502 are connected to the floor of the stope roadway 200 by the first anchor bolt 700. The bottom end of the first telescopic piece 501 and the bottom end of the plurality of second telescopic pieces 502 are fixed on the floor of the stope roadway 200 by the first anchor bolt 700, thereby improving the stability of the first telescopic piece 501 and the plurality of second telescopic pieces 502 in the stope roadway 200, and further ensuring the stability of the first telescopic piece 501 and the plurality of second telescopic pieces 502 vertically supporting the support beam 100, and further strengthening the stability of the support beam 100 supporting the roof of the stope roadway 200.

[0044] In addition, a plurality of first fixing holes 104 are formed in the inner wall of the roof of the stope roadway 200 corresponding to the support beam 100. The plurality of first fixing holes 104 correspond to and match the top end of the first telescopic piece 501 and the top end of the plurality of second telescopic pieces 502 one by one. In this way, the top end of the first telescopic piece 501 and the top end of the plurality of second telescopic pieces 502 are embedded in the corresponding and matched first fixing holes 104, so that the first telescopic piece 501 and the second telescopic piece 502 are more stably connected to the support beam 100 during supporting the support beam 100, thereby improving the stability of the first telescopic piece 501 and the second telescopic piece 502 supporting the support beam 100.

[0045] In some embodiments, with reference to Figures 1 to 4 The second reinforcing assembly 600 in the application includes a horizontal reinforcing rod 601 and a horizontal reinforcing cylinder 602 connected by a fastener 800. Specifically, one end of the horizontal reinforcing rod 601 and one end of the horizontal reinforcing cylinder 602 are arranged on the inner walls of the two sides of the support beam 100 away from the stope roadway 200, respectively. The end of the horizontal reinforcing rod 601 away from the support beam 100 extends into the horizontal reinforcing cylinder 602 from the end of the horizontal reinforcing cylinder 602 away from the support beam 100.

[0046] In the above embodiment, when the length of the horizontal reinforcing rod 601 exposed outside the horizontal reinforcing cylinder 602 and the length of the horizontal reinforcing cylinder 602 match the distance between the two sides of the support beam 100 near the bottom end, the horizontal reinforcing rod 601 and the horizontal reinforcing cylinder 602 are fixed together by the fastener 800. The fastener 800 can be a fastening bolt and a nut. A plurality of first threaded holes are arranged on the horizontal reinforcing rod 601 at equal intervals along the length direction of the horizontal reinforcing rod 601. A plurality of second threaded holes corresponding to the plurality of first threaded holes are arranged on the horizontal reinforcing cylinder 602 at equal intervals along the length direction of the horizontal reinforcing cylinder 602. The shank end of the fastening bolt is sequentially inserted through one of the second threaded holes, one of the first threaded holes, and another one of the second threaded holes, and the nut is screwed on the shank of the fastening bolt inserted through the second threaded hole, so as to realize the fixed connection of the horizontal reinforcing rod 601 and the horizontal reinforcing cylinder 602.

[0047] In addition, the connection between the horizontal reinforcing rod 601 and the horizontal reinforcing cylinder 602 by the fastener 800 facilitates the connection or disconnection of the horizontal reinforcing rod 601 and the horizontal reinforcing cylinder 602, so that the horizontal reinforcing rod 601 and the horizontal reinforcing cylinder 602 can support the support beam 100 with different spans, thereby improving the wide applicability of the horizontal reinforcing rod 601 and the horizontal reinforcing cylinder 602.

[0048] In some embodiments, with reference to Figure 5 The two inner walls corresponding to the two sides of the support beam 100 and the stope roadway 200 are respectively provided with a second fixing hole 105. One of the second fixing holes 105 corresponds to and matches the end of the horizontal reinforcing rod 601 away from the horizontal reinforcing cylinder 602, and the other of the second fixing holes 105 corresponds to and matches the end of the horizontal reinforcing cylinder 602 away from the horizontal reinforcing rod 601. The deeper the second fixing hole 105, the more stable the connection of the horizontal reinforcing rod 601 and the horizontal reinforcing cylinder 602 with the support beam 100. The depth of the second fixing hole 105 can be set according to actual needs, which is not limited in the application.

[0049] In the above embodiments, one end of the horizontal reinforcing rod 601 away from the horizontal reinforcing cylinder 602 is embedded in the second fixed hole 105 corresponding to the matching cut, and one end of the horizontal reinforcing cylinder 602 away from the horizontal reinforcing rod 601 is embedded in the second fixed hole 105 corresponding to the matching cut, so that the stability of the horizontal reinforcing rod 601 and the horizontal reinforcing cylinder 602 to support the support beam 100 is higher.

[0050] In some embodiments, with reference to Figure 2 、 Figure 3 、 Figure 4 and Figure 6 , the bottom end of the support beam 100 in the present application is provided with a support base 106, which is connected with the floor of the stope roadway 200 through the second anchor bolt 900; wherein the support base 106 at the bottom end of the support beam 100 is fixed together with the floor of the stope roadway 200 through the second anchor bolt 900, thereby improving the stability of the support beam 100 in the stope roadway 200.

[0051] In addition, the support beam 100 is made of reinforced concrete, which makes the strength of the support beam 100 higher, thereby improving the service life of the support beam 100, so that the support beam 100 can stably support the roof and two sides of the stope roadway 200.

[0052] In some embodiments, the plurality of anchor cables 400 in the present application are all resin anchor cables. Among them, the resin anchor cable has the advantages of fast curing, high strength, strong adaptability, simple construction and cost-effective. Therefore, the resin anchor cable is used instead of the grouting anchor cable in the present application, so that the stability of the connection between the support beam and the roof and two sides of the stope roadway 200 is higher, and the construction is convenient.

[0053] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pre-controlled roof support device for a mining area, characterized in that, include: A support beam (100) of a preset width is provided. The support beam (100) is set in the mining roadway (200) and is used to support the two sides and the roof of the mining roadway (200). The outer wall of the support beam (100) corresponding to the two sides and the roof of the mining roadway (200) is connected to the two sides and the roof of the mining roadway (200) by multiple anchor rods (300) and multiple anchor cables (400) arranged in an alternating manner. The first reinforcement component (500) is vertically installed in the mining roadway (200), and its top end is installed on the inner wall of the support beam (100) corresponding to the top plate of the mining roadway (200); The second reinforcement component (600) is horizontally disposed in the mining roadway (200), and its two ends are respectively disposed on the two inner walls corresponding to the two sides of the support beam (100) and the mining roadway (200); The first reinforcement component (500) and the second reinforcement component (600) are used to reinforce the support beam (100).

2. The pre-control roof support device for mining areas according to claim 1, characterized in that, The support beam (100) includes a first vertical section (101), an arc-shaped section (102), and a second vertical section (103) connected in sequence. The top surface of the first vertical segment (101) and the top surface of the second vertical segment (103) are provided with a plug (1011). The bottom surfaces of the two opposite bottom ends of the arc segment (102) are respectively provided with plug holes (1021) that correspond to and match the plug (1011) on the first vertical segment (101) and the plug (1011) on the second vertical segment (103).

3. The pre-control roof support device for mining areas according to claim 2, characterized in that, The anchor bolts (300) and anchor cables (400) installed on the outer walls of the first vertical section (101) and the second vertical section (103) corresponding to the two sides of the mining roadway (200) have an angle of 30°~70° with the horizontal plane inside the mining roadway (200).

4. The pre-controlled roof support device for mining areas according to claim 1, characterized in that, The first reinforcement component (500) includes a first telescopic member (501) and a plurality of second telescopic members (502); The first telescopic member (501) and a plurality of second telescopic members (502) are vertically arranged in the mining roadway (200), and their top ends are connected to the inner wall of the support beam (100) and the top plate of the mining roadway (200). The plurality of second telescopic members (502) are evenly distributed on both sides of the first telescopic member (501) and are symmetrical about the first telescopic member (501).

5. The pre-controlled roof support device for mining areas according to claim 4, characterized in that, The bottom end of the first telescopic member (501) and the bottom ends of the plurality of second telescopic members (502) are all connected to the bottom plate of the mining roadway (200) by the first anchor bolt (700); The support beam (100) and the inner wall corresponding to the top plate of the mining roadway (200) are provided with a plurality of first fixing holes (104). The plurality of first fixing holes (104) correspond one-to-one with the top of the first telescopic member (501) and the top of the plurality of second telescopic members (502).

6. The pre-controlled roof support device for mining areas according to claim 1, characterized in that, The second reinforcement component (600) includes a horizontal reinforcement rod (601) and a horizontal reinforcement cylinder (602) connected by fasteners (800); One end of the horizontal reinforcing rod (601) and one end of the horizontal reinforcing cylinder (602) are respectively disposed opposite to each other on the inner walls of the two sides of the support beam (100) away from the mining roadway (200). The end of the horizontal reinforcing rod (601) away from the support beam (100) extends into the horizontal reinforcing cylinder (602) from the end of the horizontal reinforcing cylinder (602) away from the support beam (100).

7. The pre-controlled roof support device for mining areas according to claim 6, characterized in that, The support beam (100) and the two inner walls corresponding to the two sides of the mining roadway (200) are respectively provided with second fixing holes (105). One of the second fixing holes (105) corresponds to and matches the end of the horizontal reinforcing rod (601) away from the horizontal reinforcing cylinder (602), and the other second fixing hole (105) corresponds to and matches the end of the horizontal reinforcing cylinder (602) away from the horizontal reinforcing rod (601).

8. The pre-controlled roof support device for mining areas according to any one of claims 1 to 7, characterized in that, The bottom end of the support beam (100) is provided with a support base (106), and the support base (106) is connected to the bottom plate of the mining roadway (200) by a second anchor bolt (900). The supporting beam (100) is made of reinforced concrete.

9. The pre-controlled roof support device for mining areas according to any one of claims 1 to 7, characterized in that, All of the anchor cables (400) are resin anchor cables.

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