Open pit coal mine intermittent process step height arrangement system

Abstract

The utility model particularly relates to an opencast coal mine intermittent process step height arrangement system, intermittent step type construction and a coal mine foundation pit, the slope surface of the coal mine foundation pit is distributed in a step shape, the intermittent step type construction comprises a preparation stage, an earthwork construction stage and a stabilization stage, the preparation stage comprises geological exploration and water system exploration, and the stabilization stage comprises geological exploration and water system exploration. The stabilization stage comprises geological reinforcement and water system maintenance, a reinforcement device is arranged at the external corner of the coal mine foundation pit step and comprises two adjusting rods matched with each other, positioning blocks are fixedly installed on the outer sides of the two adjusting rods correspondingly, positioning holes are formed in the positioning blocks, and the positioning holes are communicated with the adjusting rods. In the construction process and after construction, soil collapse and accumulated water seepage can be avoided, so that the strength of the foundation pit can be guaranteed, and potential safety hazards are remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to open-pit coal mine construction technology, in particular to an open-pit coal mine intermittent process step height arrangement system. Background Art

[0002] Before coal mining, it is necessary to excavate the soil through earthwork construction operations to expose the coal to the outside, forming an open-pit coal mine, so that workers can mine coal. When conducting earthwork construction operations in underground coal, most existing construction workers will use traditional excavation methods to form a funnel-shaped foundation pit in the coal mine area along the inclined direction. Although this construction method is faster, when the soil collapses and water seeps out of the inclined slope, it will move rapidly downward along the slope, posing a great safety hazard. For this reason, we proposed an intermittent process step height layout system for open-pit coal mines. Utility Model Content

[0003] The utility model aims to provide a discontinuous process step height arrangement system for an open-pit coal mine to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an open-pit coal mine intermittent process step height arrangement system, including intermittent step-type construction and a coal mine foundation pit, the slope of the coal mine foundation pit is distributed in a step-like manner, the intermittent step-type construction includes a preparation stage, an earthwork construction stage and a stabilization stage, the preparation stage includes geological exploration and water system exploration, and the stabilization stage includes geological reinforcement and water system maintenance.

[0005] Preferably, a reinforcer is provided at the positive corner of the coal mine foundation pit step, and the reinforcer includes two adjusting rods matching each other, an adjusting shaft is provided between the two adjusting rods, positioning blocks are respectively fixedly installed on the outer sides of the two adjusting rods, positioning holes are opened in the positioning blocks, and anchor rods plugged into the horizontal and vertical surfaces of the coal mine foundation pit step are respectively provided in the two positioning holes.

[0006] Preferably, the adjusting rod comprises two symmetrically arranged first threaded rods, and a threaded sleeve is provided between the two first threaded rods to threadably cooperate with the two first threaded rods on both sides.

[0007] Preferably, limiting holes are provided on the facing end surfaces of the two first threaded rods, a limiting rod is inserted and installed between the two limiting holes, a limiting rotating seat is fixedly installed in the middle of the limiting rod, the threaded sleeve is rotatably installed on the periphery of the limiting rotating seat, and protective sleeves are fixedly installed on the periphery of the first threaded rods on both sides, and the inner wall surface of the protective sleeve is in contact with the periphery of the threaded sleeve.

[0008] Preferably, the adjustment shaft comprises two connecting seats, the two connecting seats are respectively fixedly mounted on the inner sides of the two adjustment rods, and the inner end surfaces of the two connecting seats are respectively fixedly mounted with a first limit rotating shaft and a second limit rotating shaft which are rotatably connected to each other.

[0009] Preferably, the facing end surfaces of the first limiting rotating shaft and the second limiting rotating shaft are respectively provided with a first positioning tooth groove and a second positioning tooth groove that match each other, and positioning tooth blocks are inserted and installed in the first positioning tooth groove and the second positioning tooth groove.

[0010] Preferably, a threaded hole is opened in the middle of the positioning gear block, a rotating plate is rotatably mounted on the other end surface of the first limiting rotating shaft, and a second threaded rod threadably matched with the threaded hole is fixedly mounted on one end of the rotating plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The discontinuous process step height arrangement system for an open-pit coal mine adopts discontinuous step construction to distribute the slope of the coal mine foundation pit in a step shape, and conducts geological exploration and water system exploration as well as geological reinforcement and water system maintenance before and after the earthwork construction stage, respectively, which can effectively avoid soil collapse and water seepage. In addition, when soil collapses and water seeps out, the stepped distribution of the coal mine foundation pit can effectively buffer the soil and water, thereby significantly reducing safety hazards.

[0013] The present invention relates to an intermittent process step height arrangement system for an open-pit coal mine. A reinforcer is provided. The length and angle of the reinforcer can be adjusted by adjusting a rod and an adjusting shaft so that the reinforcer can fit in the positive corner of the step of the coal mine foundation pit. The slope of the coal mine foundation pit can be reinforced by the plug-in effect between the anchor rod, the positioning block and the coal mine foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a flow chart of intermittent step-type construction of the utility model;

[0015] Figure 2 This is a schematic diagram of the external structure of a coal mine foundation pit of the utility model;

[0016] Figure 3 This is a schematic diagram of the external structure of the reinforcement of the utility model;

[0017] Figure 4 This is a schematic diagram of the internal split structure of the adjusting rod of the utility model;

[0018] Figure 5 This is a schematic diagram of the external split structure of the adjustment axis of the utility model at one side of the viewing angle;

[0019] Figure 6 It is a schematic diagram of the external split structure of the utility model at the other side viewing angle of the adjustment axis.

[0020] In the figure:

[0021] 1. Intermittent step-type construction; 10. Coal mine foundation pit; 11. Preparation stage; 111. Geological exploration; 112. Water system exploration; 12. Earthwork construction stage; 13. Stabilization stage; 131. Geological reinforcement; 132. Water system maintenance;

[0022] 2. Reinforcement; 23. Positioning block; 24. Positioning hole; 25. Anchor rod;

[0023] 21. Adjustment rod; 211. First threaded rod; 212. Protective sleeve; 213. Position limiting plug hole; 214. Position limiting plug rod; 215. Position limiting rotating seat; 216. Threaded sleeve;

[0024] 22. Adjusting shaft; 220. Connecting seat; 221. First limiting rotating shaft; 222. Second limiting rotating shaft; 223. First positioning tooth groove; 224. Second positioning tooth groove; 225. Positioning tooth block; 226. Threaded hole; 227. Rotating plate; 228. Second threaded rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0026] See also Figure 1-6 The utility model provides a technical solution: an open-pit coal mine intermittent process step height arrangement system, including an intermittent step-type construction 1 and a coal mine foundation pit 10, characterized in that: the slope of the coal mine foundation pit 10 is distributed in a step-like manner, the intermittent step-type construction 1 includes a preparation stage 11, an earthwork construction stage 12 and a stabilization stage 13, the preparation stage 11 includes geological exploration 111 and water system exploration 112, and the stabilization stage 13 includes geological reinforcement 131 and water system maintenance 132.

[0027] Working principle: The coal mine foundation pit 10 is excavated downwards by adopting the construction method of intermittent step-type construction 1. Before the earthwork construction stage 12 of each step, a preparation stage 11 is carried out at the step, which includes geological exploration 111 and water system exploration 112, and after the earthwork construction stage 12 of each step, a stabilization stage 13 is carried out, which includes geological reinforcement 131 and water system maintenance 132. The coal mine foundation pit 10 is constructed step by step in this manner, which can ensure the strength of the slope of the coal mine foundation pit 10. Example 2

[0028] A reinforcer 2 is provided at the positive corner of the step of the coal mine foundation pit 10, and the reinforcer 2 includes two adjusting rods 21 that match each other, an adjusting shaft 22 is provided between the two adjusting rods 21, and positioning blocks 23 are fixedly installed on the outer sides of the two adjusting rods 21, and positioning holes 24 are opened in the positioning blocks 23. Anchor rods 25 that are plugged into the horizontal and vertical surfaces of the steps of the coal mine foundation pit 10 are respectively provided in the two positioning holes 24.

[0029] A reinforcer 2 is set. By adjusting the rod 21 and the reinforcer 2, the length and angle of the reinforcer 2 can be adjusted respectively so that it can match the positive corner of the step of the coal mine foundation pit 10, and the reinforcer 2 can be fixed by plugging and fitting between the anchor rod 25, the positioning block 23 and the coal mine foundation pit 10, thereby achieving the effect of reinforcing the step of the coal mine foundation pit 10. Example 3

[0030] The adjusting rod 21 includes two symmetrically arranged first threaded rods 211, a threaded sleeve 216 threadably matched with the two first threaded rods 211 on both sides is provided between the two first threaded rods 211, and the two first threaded rods 211 have limiting holes 213 on the facing end faces, a limiting rod 214 is inserted and installed between the two limiting holes 213, a limiting rotating seat 215 is fixedly installed in the middle of the limiting rod 214, and the threaded sleeve 216 is rotatably installed on the periphery of the limiting rotating seat 215, and a protective sleeve 212 is fixedly installed on the periphery of the first threaded rods 211 on both sides, and the inner wall surface of the protective sleeve 212 fits with the periphery of the threaded sleeve 216.

[0031] When it is necessary to adjust the length of the reinforcer 2, the threaded sleeve 216 is rotated on the periphery of the limit rotating seat 215, and the limit plug rod 214 is plugged into the limit plug hole 213 to restrict the movement direction of the first threaded rods 211 on both sides, so that the rotating threaded sleeve 216 can drive the first threaded rods 211 on both sides to move toward or away from each other through the thread cooperation between it and the first threaded rods 211 on both sides, thereby achieving the effect of adjusting the length of the adjustment rod 21; wherein, a protective sleeve 212 is provided to protect the first threaded rod 211 on the periphery thereof to prevent it from contacting with external equipment and soil, thereby achieving the effect of protecting the outer thread of the first threaded rod 211. Example 4

[0032] The adjusting shaft 22 includes two connecting seats 220, and the two connecting seats 220 are respectively fixedly installed on the inner sides of the two adjusting rods 21. The inner end surfaces of the two connecting seats 220 are respectively fixedly installed with a first limiting rotating shaft 221 and a second limiting rotating shaft 222 that are rotatably connected to each other. The facing end surfaces of the first limiting rotating shaft 221 and the second limiting rotating shaft 222 are respectively provided with a first positioning tooth groove 223 and a second positioning tooth groove 224 that match each other. A positioning tooth block 225 is inserted and installed in the first positioning tooth groove 223 and the second positioning tooth groove 224. A threaded hole 226 is opened in the middle of the positioning tooth block 225. A rotating plate 227 is rotatably installed on the other end surface of the first limiting rotating shaft 221, and a second threaded rod 228 threadedly matched with the threaded hole 226 is fixedly installed on one end of the rotating plate 227.

[0033] When the angle of the reinforcer 2 is adjusted, the angle between the two adjustment rods 21 can be adjusted by the rotational cooperation between the first limit rotation shaft 221 and the second limit rotation shaft 222;

[0034] Then, on the periphery of the first limiting rotating shaft 221, the rotating plate 227 is rotated to drive the second threaded rod 228 to rotate in the first positioning tooth groove 223. Under the restriction of the movement direction of the positioning tooth block 225 in the inner cavity of the first positioning tooth groove 223, the rotating second threaded rod 228 can drive the positioning tooth block 225 to move through the threaded cooperation between it and the threaded hole 226, so that it can be plugged into the first positioning tooth groove 223 and the second positioning tooth groove 224 at the same time, and the rotating connection between the first limiting rotating shaft 221 and the second limiting rotating shaft 222 can be positioned, so as to achieve the effect of positioning the angle of the reinforcer 2.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A discontinuous process step height arrangement system for an open-pit coal mine, comprising a discontinuous step construction (1) and a coal mine foundation pit (10), characterized in that: The slope of the coal mine foundation pit (10) is distributed in a step-like manner. The intermittent step-type construction (1) includes a preparation stage (11), an earthwork construction stage (12) and a stabilization stage (13). The preparation stage (11) includes geological exploration (111) and water system exploration (112), and the stabilization stage (13) includes geological reinforcement (131) and water system maintenance (132).

2. The open-pit coal mine intermittent process step height arrangement system according to claim 1, characterized in that: A reinforcer (2) is provided at the positive corner of the step of the coal mine foundation pit (10), the reinforcer (2) comprising two mutually matching adjustment rods (21), an adjustment shaft (22) being provided between the two adjustment rods (21), positioning blocks (23) being fixedly mounted on the outer sides of the two adjustment rods (21), positioning holes (24) being provided in the positioning blocks (23), and anchor rods (25) being respectively provided in the two positioning holes (24) and being plugged into the horizontal surface and the vertical surface of the step of the coal mine foundation pit (10).

3. The open-pit coal mine intermittent process step height arrangement system according to claim 2, characterized in that: The adjusting rod (21) comprises two symmetrically arranged first threaded rods (211), and a threaded sleeve (216) is provided between the two first threaded rods (211) and is threadably matched with the two first threaded rods (211) on both sides.

4. The open-pit coal mine intermittent process step height arrangement system according to claim 3, characterized in that: The two first threaded rods (211) are provided with limit insertion holes (213) on the facing end surfaces, a limit insertion rod (214) is inserted and installed between the two limit insertion holes (213), a limit rotation seat (215) is fixedly installed in the middle of the limit insertion rod (214), the threaded sleeve (216) is rotatably installed on the periphery of the limit rotation seat (215), and protective sleeves (212) are fixedly installed on the periphery of the first threaded rods (211) on both sides, and the inner wall surface of the protective sleeve (212) is in contact with the periphery of the threaded sleeve (216).

5. The open-pit coal mine intermittent process step height arrangement system according to claim 2, characterized in that: The adjustment shaft (22) comprises two connection seats (220), the two connection seats (220) being fixedly mounted on the inner sides of the two adjustment rods (21), respectively, and the inner end surfaces of the two connection seats (220) are respectively fixedly mounted with a first limit rotation shaft (221) and a second limit rotation shaft (222) which are rotatably connected to each other.

6. The open-pit coal mine intermittent process step height arrangement system according to claim 5, characterized in that: The facing end surfaces of the first limiting rotating shaft (221) and the second limiting rotating shaft (222) are respectively provided with a first positioning tooth groove (223) and a second positioning tooth groove (224) that match each other, and a positioning tooth block (225) is inserted and installed in the first positioning tooth groove (223) and the second positioning tooth groove (224).

7. The open-pit coal mine intermittent process step height arrangement system according to claim 6, characterized in that: A threaded hole (226) is provided in the middle of the positioning tooth block (225); a rotating plate (227) is rotatably mounted on the other end surface of the first position-limiting rotating shaft (221); and a second threaded rod (228) threadably matched with the threaded hole (226) is fixedly mounted on one end of the rotating plate (227).

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