Temporary roadway supporting device for mining engineering

Abstract

The invention relates to the field of mining engineering, and particularly discloses a temporary roadway supporting device for mining engineering, which comprises a roadway supporting mechanism and a supporting mechanism, the roadway supporting mechanism comprises a supporting assembly, a reinforcing assembly is installed on the supporting assembly, and a plurality of arc-shaped steel rods are arranged on the outer side of the supporting assembly. The supporting mechanism comprises a positioning assembly, and a supporting plate assembly is clamped and embedded in the positioning assembly in a sliding mode. The supporting assembly is clamped and embedded in the positioning assembly in a sliding mode, and the supporting plate assembly is fixedly installed on the supporting assembly. The reinforcing assembly is installed on the supporting assembly, additional strength supporting can be provided for the supporting assembly, the supporting assembly is not prone to deformation or damage when bearing the pressure of roadway surrounding rock, the stability and bearing capacity of the whole supporting device are effectively improved, the reliability of roadway supporting is ensured, and the supporting effect is good. When the surrounding rock of the roadway applies pressure to the supporting device, the reinforcing assembly can evenly disperse the pressure to all parts of the supporting assembly.

Description

Technical Field

[0001] The invention belongs to the field of mining engineering, in particular to a temporary supporting device for a roadway used in mining engineering. Background Art

[0002] In metal mining projects, tunnels serve as critical passages for ore transportation, equipment passage, and personnel communication. Their stability plays a crucial role in the safety and efficiency of mining operations. Because tunnels are located underground, mining generates strong vibrations, which are transmitted through the surrounding rock and soil. Simultaneously, the surrounding soil or rock, disturbed by mining, compresses and gradually approaches the tunnel, negatively impacting the tunnel structure. This can cause rockfall within the tunnel at the very least, or even collapse, seriously endangering the lives of mining workers. Therefore, effective support measures must be implemented during tunnel excavation to ensure tunnel stability.

[0003] Currently, temporary tunnel support devices commonly used in metal mining projects primarily consist of structural components such as plates and support assemblies. These devices utilize support assemblies to temporarily support the tunnel, thereby reducing the possibility of tunnel collapse. However, in practical applications, existing temporary tunnel support devices still exhibit some shortcomings.

[0004] Existing temporary support devices for roadways have shortcomings in terms of support height adjustment and adaptability. Specifically, some devices have a fixed support height and cannot be flexibly adjusted to the actual height of the roadway, resulting in poor support effectiveness when working with roadways of varying heights. Furthermore, some devices have poor adaptability when faced with complex and changing geological conditions, unable to effectively cope with deformation and pressure changes in the roadway's surrounding rock, thereby increasing the risk of roadway collapse. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a temporary support device for tunnels in mining engineering, so as to solve the problems in the prior art of inflexible support height adjustment and poor adaptability to geological conditions, resulting in poor tunnel support and protection effects.

[0006] A temporary support device for a roadway used in mining engineering, comprising a roadway support mechanism and a support mechanism;

[0007] The tunnel support mechanism includes a support assembly, a reinforcement assembly is installed on the support assembly, and a plurality of arc-shaped steel rods are arranged on the outer side of the support assembly;

[0008] The support mechanism includes a positioning assembly, and a support plate assembly is embedded in a sliding card on the positioning assembly;

[0009] The support assembly is slidably engaged with the positioning assembly, and the support plate assembly is fixedly mounted on the support assembly;

[0010] The support plate assembly is lifted by a jack and then supported and positioned by a positioning assembly.

[0011] Preferably, the support assembly includes a group of main support frames, and a plurality of purlins are welded and fixed to the outer sides of the group of main support frames;

[0012] A plurality of purlins are arranged in parallel and perpendicular to the main support frame.

[0013] Preferably, the reinforcement assembly includes a connecting steel column, and both ends of the connecting steel column are fixedly connected to a threaded rod 1;

[0014] The connecting steel columns are fixedly mounted on the corresponding main support frames through threaded rods provided at both ends.

[0015] Preferably, a plurality of the arc-shaped steel rods are welded and fixed to the outer sides of the purlins, and the plurality of the arc-shaped steel rods and the purlins are perpendicular to each other.

[0016] Preferably, the positioning assembly includes a positioning base, and limit plates are fixedly mounted on the upper sides of both ends of the positioning base;

[0017] The main support frame adopts an arc-shaped I-beam, and both ends of the main support frame are respectively limited and slidably embedded in the corresponding limit plates.

[0018] Preferably, a threaded column is fixedly mounted on the upper side of the positioning base, the outer side of the threaded column is threadedly connected to a threaded support block, and the top end of the threaded column is also threadedly connected to a limit head;

[0019] The support plate assembly includes a support plate body, and threaded rods 2 are fixedly installed at both ends of the support plate body;

[0020] The support plate bodies are fixedly mounted on the corresponding main support frames through two threaded rods;

[0021] The support plate body is limitedly slidably embedded on the threaded column and supported by the threaded support block.

[0022] Preferably, a positioning rod is fixedly mounted on the bottom of the positioning base;

[0023] The positioning rod is embedded in the soil for fixation.

[0024] Preferably, the surfaces of the support assembly, reinforcement assembly, arc-shaped steel rod, positioning assembly and support plate assembly are coated with an anti-rust coating to enhance the corrosion resistance of the device in a humid mining environment and extend the service life of the device.

[0025] Preferably, the main load-bearing components such as the main support frame, purlins, connecting steel columns, curved steel rods, positioning bases, limit plates, threaded columns, and support plate bodies are all made of high-strength steel to ensure that the device has sufficient strength and stability when bearing the pressure of the tunnel surrounding rock.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] By installing the reinforcement assembly on the support assembly, it can provide additional strength support for the support assembly, making it less likely to deform or be damaged when bearing the pressure of the tunnel surrounding rock. This effectively improves the stability and load-bearing capacity of the entire support device and ensures the reliability of the tunnel support. When the tunnel surrounding rock exerts pressure on the support device, the reinforcement assembly can evenly distribute the pressure to various parts of the support assembly, avoiding local stress concentration, thereby reducing the risk of damage to the support assembly due to excessive local force and extending the service life of the support device.

[0028] Several curved steel rods are welded and fixed to the outside of the reinforcement components to form an integrated framework. This structure offers greater rigidity and stability, better resisting deformation and pressure from the tunnel's surrounding rock, and providing stronger support for the tunnel. The curved design of the curved steel rods allows them to better disperse stress under pressure, reducing deformation. Furthermore, when welded together with the reinforcement components, the entire framework structure can resist compression from the tunnel's surrounding rock, effectively preventing deformation and loss of support from the supporting device, thereby improving tunnel safety.

[0029] The support plate assembly is lifted by a jack and then supported and positioned by the positioning assembly. This design allows the support device to fit closely to the top of the tunnel, providing stable and reliable support for the tunnel. The coordination of the support plate assembly and the positioning assembly ensures the stability of the support device in the tunnel, preventing it from displacement or shaking, and further enhancing the support effect.

[0030] The jack is used to lift the support plate assembly, and after the tunnel support mechanism is lifted, the positioning assembly supports and positions the support plate assembly. This design can provide stable support for the tunnel, ensure the structural safety of the tunnel during the mining process, and effectively prevent the tunnel from deformation, collapse, and other accidents due to uneven force or external pressure, thus ensuring the safe conduct of mining operations.

[0031] When installing this device, first install the reinforcement component and the pallet component on the support component, then weld and fix the arc-shaped steel rod to the outside of the reinforcement component to complete the main frame construction, and then place the positioning component in the tunnel, and slide the support component and the pallet component onto the positioning component. The entire installation process has clear steps and is relatively simple to operate, which is conducive to improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the decomposition structure of the present invention;

[0034] Figure 3 Schematic diagram of the structure of the tunnel support mechanism of the present invention;

[0035] Figure 4 Schematic diagram of the structure of the support mechanism of the present invention.

[0036] In the figure: 1. Tunnel support mechanism; 11. Support assembly; 111. Main support frame; 112. Purlin; 12. Reinforcement assembly; 121. Connecting steel column; 122. Threaded rod one; 13. Arc-shaped steel rod; 2. Support mechanism; 21. Positioning assembly; 211. Positioning base; 212. Limiting plate; 213. Threaded column; 214. Threaded support block; 215. Limiting head; 216. Positioning rod; 22. Support plate assembly; 221. Support plate body; 222. Threaded rod two. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] like Figure 1 and Figure 2 As shown:

[0039] Embodiment 1: The present invention provides a temporary support device for a roadway used in a mining engineering, comprising a roadway support mechanism 1 and a support mechanism 2;

[0040] The tunnel support mechanism 1 includes a support assembly 11, a reinforcement assembly 12 is mounted on the support assembly 11, and a plurality of arc-shaped steel rods 13 are arranged on the outside of the support assembly 11;

[0041] The support mechanism 2 includes a positioning assembly 21, on which a support plate assembly 22 is slidably embedded;

[0042] The support assembly 11 is slidably engaged with the positioning assembly 21, and the support plate assembly 22 is fixedly mounted on the support assembly 11;

[0043] The support plate assembly 22 is lifted by the jack and then supported and positioned by the positioning assembly 21;

[0044] As can be seen from the above, during installation, the reinforcement assembly 12 and the support plate assembly 22 are first installed on the support assembly 11, and then a plurality of arc-shaped steel rods 13 are welded and fixed to the outside of the reinforcement assembly 12, thereby completing the construction of the main frame;

[0045] Place the positioning assembly 21 in the excavated tunnel, then slide and clamp the support assembly 11 and the pallet assembly 22 onto the positioning assembly 21, and then lift the pallet assembly 22 by the jack, thereby raising the tunnel support mechanism 1. After the lifting, the positioning assembly 21 supports and positions the pallet assembly 22.

[0046] The elevated tunnel support mechanism 1 can be used to provide safety protection for the tunnel.

[0047] like Figures 1 to 3 As shown:

[0048] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the support assembly 11 includes a set of main support frames 111, and a plurality of purlins 112 are welded and fixed to the outer sides of the set of main support frames 111;

[0049] A plurality of purlins 112 are arranged in parallel and perpendicular to the main support frame 111 .

[0050] Specifically, the reinforcement assembly 12 includes a connecting steel column 121, and both ends of the connecting steel column 121 are fixedly connected to a threaded rod 122;

[0051] The connecting steel columns 121 are fixedly mounted on the corresponding main support frames 111 through threaded rods 122 provided at both ends.

[0052] Specifically, a plurality of arc-shaped steel rods 13 are welded and fixed to the outer sides of the purlins 112 , and the plurality of arc-shaped steel rods 13 and the purlins 112 are perpendicular to each other.

[0053] As can be seen from the above, during installation, the support assembly 11 is first built, a set of main support frames 111 are placed, and a number of purlins 112 are welded and fixed on the outside thereof parallel to and perpendicular to the main support frames 111;

[0054] Then install the reinforcement assembly 12, and fix the threaded rods 122 connecting the two ends of the steel column 121 to the corresponding main support frame 111;

[0055] Finally, several curved steel rods 13 are welded and fixed to the outside of the purlins 112, and the curved steel rods 13 and the purlins 112 are perpendicular to each other, thereby completing the installation of the relevant structure;

[0056] When the surrounding rock of the tunnel is slightly deformed or the local pressure is uneven, the purlin 112 can cooperate with the main support frame 111 to disperse the surrounding rock pressure, prevent the main support frame 111 from bending or breaking due to excessive local force, and maintain the overall stability of the support assembly 11;

[0057] If the surrounding rock pressure of the tunnel suddenly increases, the connecting steel columns 121 in the reinforcement assembly 12 can enhance the connection strength between the main support frames 111, so that the entire support assembly 11 forms a tighter whole, effectively resisting the squeezing of the surrounding rock, preventing the support assembly 11 from falling apart or shifting, and ensuring the reliability of the support effect;

[0058] When the tunnel undergoes significant deformation or sudden situations such as falling rocks, the arc-shaped steel rod 13, due to its arc-shaped structure and vertical welding method with the purlin 112, can withstand large impact and deformation forces, and disperse the impact force to the purlin 112 and the main support frame 111, preventing the support device from being damaged due to excessive local force, further strengthening the reinforcement support effect of the support device, ensuring that the tunnel can remain relatively stable when risks occur, and providing safety protection for personnel and equipment in the tunnel.

[0059] like Figure 1 、 Figure 2 and Figure 4 As shown:

[0060] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that the positioning assembly 21 includes a positioning base 211, and the upper sides of both ends of the positioning base 211 are fixedly mounted with a limit plate 212;

[0061] The main support frame 111 is made of arc-shaped I-beam, and both ends of the main support frame 111 are respectively limited and slidably embedded in the corresponding limiting plates 212.

[0062] Specifically, a threaded column 213 is fixedly mounted on the upper side of the positioning base 211, the outer side of the threaded column 213 is threadedly connected to a threaded support block 214, and the top of the threaded column 213 is also threadedly connected to a limit head 215;

[0063] The support plate assembly 22 includes a support plate body 221, and threaded rods 222 are fixedly installed at both ends of the support plate body 221;

[0064] The support plate bodies 221 are fixedly mounted on the corresponding main support frames 111 through the second threaded rods 222;

[0065] The support plate body 221 is limitedly slidably engaged on the threaded column 213 and supported by the threaded support block 214 .

[0066] Specifically, a positioning rod 216 is fixedly mounted on the bottom of the positioning base 211;

[0067] The positioning rod 216 is embedded in the soil for fixation.

[0068] Specifically, the surfaces of the support assembly 11, the reinforcement assembly 12, the arc-shaped steel rod 13, the positioning assembly 21 and the support plate assembly 22 are all coated with an anti-rust coating to enhance the corrosion resistance of the device in the humid mining environment and extend the service life of the device.

[0069] Specifically, the main load-bearing components such as the main support frame 111, purlins 112, connecting steel columns 121, curved steel rods 13, positioning bases 211, limit plates 212, threaded columns 213, and support plate bodies 221 are all made of high-strength steel to ensure that the device has sufficient strength and stability when bearing the pressure of the tunnel surrounding rock.

[0070] As can be seen from the above, during installation, the positioning assembly 21 is first placed in the excavated tunnel, and the positioning rod 216 is embedded in the soil for fixation;

[0071] Then install the support assembly 11, and slide the two ends of the main support frame 111 made of arc-shaped I-beam into the limit plates 212 fixedly installed on the upper sides of the two ends of the positioning base 211;

[0072] At the same time, the support plate body 221 is limitedly slidably embedded in the threaded column 213 fixed on the upper side of the positioning base 211 and supported by the threaded support block 214, and then the limit head 215 is screwed onto the threaded column 213;

[0073] The whole installation process is completed by lifting the support plate body 221 with a jack and rotating the threaded support block 214 to make it rise and support the support plate body 221;

[0074] When the geological conditions around the tunnel are unstable, such as when slight ground subsidence occurs, the positioning rod 216 penetrates deep into the soil and, by virtue of its friction and grip with the soil, firmly fixes the positioning assembly 21, preventing the entire support device from shifting or tipping over due to ground movement, thereby providing a stable installation foundation for subsequent support structures.

[0075] If the surrounding rock pressure of the tunnel suddenly increases, the main support frame 111 of the curved I-beam can better disperse and withstand the surrounding rock pressure due to its good mechanical properties and curved structure. At the same time, the limit plate 212 limits the main support frame 111 to prevent it from excessive displacement or deformation under pressure, ensuring that the support assembly 11 always remains stable and provides reliable support for the tunnel;

[0076] When rocks fall or local collapse occurs on the top of the tunnel, the support plate body 221 can provide auxiliary support to maintain the stability of the main support frames 111 at both ends;

[0077] By applying an anti-rust coating to the surface of the support assembly 11, reinforcement assembly 12, curved steel rod 13, positioning assembly 21 and support plate assembly 22, the corrosion resistance of the device in the humid mining environment is effectively enhanced, and the service life of the device is extended; at the same time, the main load-bearing components such as the main support frame 111, purlin 112, connecting steel column 121, curved steel rod 13, positioning base 211, limit plate 212, threaded column 213, support plate body 221 are made of high-strength steel, ensuring that the device has sufficient strength and stability when bearing the pressure of the tunnel surrounding rock, providing reliable protection for temporary support of the tunnel.

[0078] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Any changes, modifications, replacements and variations of the above embodiments by ordinary technicians in this field within the scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temporary support device for a mining tunnel, characterized in that: It comprises a tunnel support mechanism (1) and a support mechanism (2); The tunnel support mechanism (1) comprises a support assembly (11), a reinforcement assembly (12) is mounted on the support assembly (11), and a plurality of arc-shaped steel rods (13) are arranged on the outer side of the support assembly (11); The support mechanism (2) comprises a positioning assembly (21), and a support plate assembly (22) is slidably embedded in the positioning assembly (21); The support assembly (11) is slidably engaged with the positioning assembly (21), and the support plate assembly (22) is fixedly mounted on the support assembly (11); The support plate assembly (22) is lifted by a jack and then supported and positioned by a positioning assembly (21).

2. A temporary support device for a mining tunnel according to claim 1, characterized in that: The support assembly (11) includes a group of main support frames (111), and a plurality of purlins (112) are welded and fixed to the outer sides of the group of main support frames (111); A plurality of purlins (112) are arranged in parallel and perpendicular to the main support frame (111).

3. A temporary support device for a mining tunnel as claimed in claim 2, characterized in that: The reinforcement assembly (12) comprises a connecting steel column (121), and both ends of the connecting steel column (121) are fixedly connected to a threaded rod (122); The connecting steel columns (121) are fixedly mounted on corresponding main support frames (111) via threaded rods (122) provided at both ends.

4. A temporary support device for a mining tunnel as claimed in claim 2, characterized in that: A plurality of the arc-shaped steel rods (13) are welded and fixed to the outer sides of the purlins (112), and the plurality of the arc-shaped steel rods (13) and the purlins (112) are perpendicular to each other.

5. A temporary support device for a mining tunnel as claimed in claim 2, characterized in that: The positioning assembly (21) comprises a positioning base (211), and a limiting plate (212) is fixedly mounted on the upper sides of both ends of the positioning base (211); The main support frame (111) is made of arc-shaped I-steel, and both ends of the main support frame (111) are respectively limited and slidably embedded in corresponding limit plates (212).

6. A temporary support device for a mining tunnel as claimed in claim 5, characterized in that: A threaded column (213) is fixedly mounted on the upper side of the positioning base (211), the outer side of the threaded column (213) is threadedly connected to a threaded support block (214), and the top end of the threaded column (213) is also threadedly connected to a limiting head (215); The support plate assembly (22) comprises a support plate body (221), and threaded rods (222) are fixedly mounted on both ends of the support plate body (221); The support plate bodies (221) are fixedly mounted on corresponding main support frames (111) via second threaded rods (222); The support plate body (221) is limitedly slidably embedded on the threaded column (213) and supported by the threaded support block (214).

7. A temporary support device for a mining tunnel as claimed in claim 5, characterized in that: A positioning rod (216) is also fixedly mounted on the bottom of the positioning base (211); The positioning rod (216) is embedded in the soil for fixation.

8. A temporary support device for a mining tunnel according to claim 1, characterized in that: The surfaces of the support assembly (11), the reinforcement assembly (12), the arc-shaped steel rod (13), the positioning assembly (21) and the support plate assembly (22) are all coated with an anti-rust coating to enhance the corrosion resistance of the device in a wet mining environment and extend the service life of the device.

9. A temporary support device for a mining tunnel according to claim 1, characterized in that: The main load-bearing components of the main support frame (111), purlins (112), connecting steel columns (121), arc-shaped steel rods (13), positioning bases (211), limiting plates (212), threaded columns (213), and support plate bodies (221) are all made of high-strength steel, ensuring that the device has sufficient strength and stability when bearing the pressure of the tunnel surrounding rock.

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