NL2027081A - Rock burst protection support with monitoring function - Google Patents

Rock burst protection support with monitoring function Download PDF

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Publication number
NL2027081A
NL2027081A NL2027081A NL2027081A NL2027081A NL 2027081 A NL2027081 A NL 2027081A NL 2027081 A NL2027081 A NL 2027081A NL 2027081 A NL2027081 A NL 2027081A NL 2027081 A NL2027081 A NL 2027081A
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NL
Netherlands
Prior art keywords
top plate
support
dovetail guide
roadway
fixedly connected
Prior art date
Application number
NL2027081A
Other languages
Dutch (nl)
Other versions
NL2027081B1 (en
Inventor
Sun Dequan
Li Xiaoyan
Chen Ying
Original Assignee
Shandong Province Res Institute Of Coal Geology Planning And Exploration
Univ Liaoning Technical
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Province Res Institute Of Coal Geology Planning And Exploration, Univ Liaoning Technical filed Critical Shandong Province Res Institute Of Coal Geology Planning And Exploration
Publication of NL2027081A publication Critical patent/NL2027081A/en
Application granted granted Critical
Publication of NL2027081B1 publication Critical patent/NL2027081B1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/46—Telescopic props with load-measuring devices; with alarm devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/15—Means counteracting entry of dirt; Built-in cleaning devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/54—Details of the ends of props
    • E21D15/55—Details of the ends of props of prop heads or feet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The present invention relates to a rock burst protection support with monitoring function, belonging to the technical field of rock burst protection devices. The rock burst protection support comprises a roadway and a protection support, the roadway is in an inverted U shape, the protection support is arranged in the roadway, the protection support comprises a top plate, side plates and bases, the bases are fixedly connected to the ground plane of the roadway and are respectively close to two parallel side walls of the roadway, the side plates are connected to the bases in a sliding manner, the top plate is arranged at an acute angle, side walls of the top plate is connected to the side plates on the bases on both sides in a sliding manner, the side plates are connected with support rods, a cylinder of the support rod is fixedly connected to the side plate, and a piston rod of the support rod is fixedly connected to the top plate. During normal production, the support rods support the top plate to ensure enough production and transportation space in the roadway. When a rock burst occurs in the roadway, the crushed rocks falling from the top press the top plate to move down or the crushed rocks on both sides of the roadway press the side plates to move toward the middle, so that the top plate and the side plates achieve the effects of secondary support and protection, which effectively guarantees the safety of workers.

Description

ROCK BURST PROTECTION SUPPORT WITH MONITORING FUNCTION Field of the Invention The present invention relates to the technical field of rock burst protection devices, and particularly to a rock burst protection support with monitoring function. Background of the Invention Rock burst, also known as rock explosion, is a phenomenon of sudden destruction that occurs in a rock mass near the air. Rock burst is a major risk factor in the process of coal mining, and it not only causes losses to enterprise production, but also seriously threatens the production safety of workers. Many people believe that shocks only occur on coal mining faces. However, based on the actual locations where rock bursts occur, the rock bursts occur not only on the coal mining faces, but also in roadways. The protection of rock burst in a roadway is easily ignored, but once it occurs in the roadway, it will destroy the support, block the roadway, and cut off the communication channel between the operators in the mine and the outside. Therefore, the protection and monitoring of roadway rock bursts cannot be ignored, in order to ensure safe operation of mining and win time for the operators to get out of the mine. Summary of the Invention In view of the above problems in the prior art, the present invention provides a rock burst protection support with monitoring function, which is achieved through the following technical solutions: A rock burst protection support with monitoring function, comprising a roadway and a protection support, the roadway is in an inverted U shape, the protection support is arranged in the roadway, the protection support comprises a top plate, side plates and bases, the bases are fixedly connected to the ground plane of the roadway and are respectively close to two parallel side walls of the roadway, the side plates are connected to the bases in a sliding manner, the top plate is arranged at an acute angle, side walls of the top plate is connected to the side plates on the bases on both sides in a sliding manner, the side plates are connected with support rods, a cylinder of the support rod is fixedly connected to the side plate, and a piston rod of the support rod is fixedly connected to the top plate.
The present invention is further configured as follows: a first dovetail guide rail is fixedly connected to outer side walls of the top plate, the side of the side plate, the side being close to the top plate, is provided with a first dovetail guide groove, the first dovetail guide rail is 1 connected in the first dovetail guide groove in a sliding manner, a lower end face of the side plate is fixedly connected with a second dovetail guide rail, an upper end face of the base is provided with a second dovetail guide groove, and the second dovetail guide rail is connected in the second dovetail guide groove in a sliding manner.
The present invention is further configured as follows: a triangular reinforcing rib is fixedly connected to an upper end face of the second dovetail guide rail, and the other side wall of the reinforcing rib is fixedly connected to a side wall of the side plate.
The present invention is further configured as follows: the side of the second dovetail guide groove, the side being away from the side wall of the roadway, is fixedly connected with a displacement sensor used for monitoring the position of the second dovetail guide rail, the displacement sensor is electrically connected with a data processor, a communication base station is provided in the roadway, and after a displacement signal detected by the displacement sensor 1s processed by the data processor, the signal is sent to the ground by the communication base station.
The present invention is further configured as follows: the side wall of the base, the side being away from the side wall of the roadway, is provided with a groove, a coil spring is fixedly connected in the groove, dust cloth is fixedly connected to a free end of the coil spring, and the end of the dust cloth, the end being away from the coil spring, is fixedly connected to the side plate.
Based on the above, the present invention has the following beneficial technical effects: During normal production, the support rods support the top plate to ensure enough production and transportation space in the roadway. When a rock burst occurs in the roadway, the crushed rocks falling from the top press the top plate to move down or the crushed rocks on both sides of the roadway press the side plates to move toward the middle, so that the top plate and the side plates achieve the effects of secondary support and protection, which effectively guarantees the safety of workers.
Brief Description of the Drawings Fig. 1 is a schematic structural diagram during normal support according to the embodiment; Fig. 2 is an exploded schematic diagram of a protection support; Fig. 3 is a top view of a base; Fig. 4 is a cross-sectional view along line A-A in Fig. 3; Fig. 4 is a cross-sectional view along line B-B in Fig. 3; 2
Fig. 61s a front view during normal support according to an embodiment; Fig. 7 is a front view during compression according to an embodiment; Fig. 8 is a flowchart of signal feedback according to an embodiment; Reference signs: 100, roadway; 200, protection support; 201, top plate; 202, side plate; 203, base; 204, support rod; 205, first dovetail guide rail; 206, first dovetail guide groove; 207, second dovetail guide rail; 208, second dovetail guide groove; 209, reinforcing rib; 210, displacement sensor; 211, groove; 212, coil spring; 213, dust cloth.
Detailed Description of Embodiments The present invention will be further described in detail below with reference to the accompanying drawings. Embodiments Figs. 1-8 show a rock burst protection support with monitoring function according to the present invention, comprising a roadway 100 and a protection support 200, the roadway 100 is in an inverted U shape, the protection support 200 is arranged in the roadway 100, the protection support 200 comprises a top plate 201, side plates 202 and bases 203, the bases 203 are fixedly connected to the ground plane of the roadway 100 and are respectively close to two parallel side walls of the roadway 100, the side plates 202 are connected to the bases 203 in a sliding manner, the top plate 201 is arranged at an acute angle, side walls of the top plate 201 is connected to the side plates 202 on the bases 203 on both sides in a sliding manner, the side plates 202 are connected with support rods 204, the support rods 204 are hydraulic support rods. A cylinder of the support rod 204 is fixedly connected to the side plate 202, and a piston rod of the support rod 204 is fixedly connected to the top plate 201. During normal production, the support rods 204 support the top plate 201 to ensure enough production and transportation space in the roadway 100. When a rock burst occurs in the roadway 100, the crushed rocks falling from the top press the top plate 201 to move down or the crushed rocks on both sides of the roadway 100 press the side plates 202 to move toward the middle, so that the top plate 201 and the side plates 202 achieve the effects of secondary support and protection, which effectively guarantees the safety of workers. A tip of the top plate 201 is excessively rounded, which avoids stress concentration at the tip of the top plate 201, causing the tip of the top plate 201 to break.
A first dovetail guide rail 205 1s fixedly connected to outer side walls of the top plate 201, the side of the side plate 202, the side being close to the top plate 201, is provided with a first dovetail guide groove 206, the first dovetail guide rail 205 is connected in the first dovetail guide groove 206 in a sliding manner, a lower end face of the side plate 202 is fixedly connected with a second dovetail guide rail 207, an upper end face of the base 203 is provided with a second dovetail guide groove 208, and the second dovetail guide rail 207 is connected in the second dovetail guide groove 208 in a sliding manner. The first dovetail guide rail 205 cooperates with the first dovetail guide groove 206, and the second dovetail guide rail 207 cooperates with the second dovetail guide groove 208 not only to play a guiding role, besides, the dovetail-shaped arrangement also leads to the effect of clamping, which avoids the separation of the top plate 201 from the side plates 202 or the separation of the side plates 202 from the base 203.
A triangular reinforcing rib 209 is fixedly connected to an upper end face of the second dovetail guide rail 207, and the other side wall of the reinforcing rib 209 is fixedly connected to a side wall of the side plate 202. Whether the crushed rocks falling in the roadway 100 press the top plate 201 or the side plates 202, the final stress points are always on the side plates 202. The reinforcing rib 209 increases the connection strength between the side plate 202 and the second dovetail guide rail 207, thereby ensuring the supporting effectiveness of the side plate 202.
As shown in Fig. 8, the side of the second dovetail guide groove 208, the side being away from the side wall of the roadway 100, is fixedly connected with a displacement sensor 210 used for monitoring the position of the second dovetail guide rail 207, the displacement sensor 210 is electrically connected with a data processor, a communication base station is provided in the roadway 100, and after a displacement signal detected by the displacement sensor 210 is processed by the data processor, the signal is sent to the ground by the communication base station, so that an engineering computer of an enterprise can monitor the underground situation.
As shown in Fig. 2, the side wall of the base 203, the side being away from the side wall of the roadway 100, is provided with a groove 211, a coil spring 212 is fixedly connected in the groove 211, dust cloth 213 is fixedly connected to a free end of the coil spring 212, and the end of the dust cloth 213, the end being away from the coil spring 212, is fixedly connected to the side plate 202. By the arrangement of the dust cloth 213, the second dovetail guide groove 208 is covered, and foreign matters can be prevented from falling into the second dovetail guide groove 208, avoiding affecting the movement of the second dovetail guide 207 and the monitoring of the displacement sensor 210.
4

Claims (5)

ConclusiesConclusions 1. Autoklaas-beschermingsonderstutting met bewakingsfunctie, waarbij de Autoklaas- beschermingsonderstutting wordt gekenmerkt, doordat deze een weg (100) en een 5 beschermingsonderstutting (200) omvat, waarbij de weg (100) in een omgekeerde U-vorm is, de beschermingsonderstutting (200) is aangebracht in de weg (100), de beschermingsonderstutting (200) een bovenplaat (201), zijplaten (202) en bases (203) omvat, de bases (203) vast zijn verbonden met het grondvlak van de weg (100) en respectievelijk dicht bij twee parallelle zijwanden van de weg (100) liggen, de zijplaten (202) schuivend zijn verbonden met de bases (203), de bovenplaat (201) is aangebracht onder een scherpe hoek, zijwanden van de bovenplaat (201) aan beide zijden schuivend zijn verbonden met de zijplaten (202) op de bases (203), de zijplaten (202) zijn verbonden met steunstangen (204), een cilinder van de steunstang (204) vast is verbonden met de zijplaat (202), en een zuigerstang van de steunstang (204) vast is verbonden met de bovenplaat (201).An Autoklaas protection prop with monitoring function, wherein the Autoklaas protection prop is characterized by comprising a road (100) and a protection prop (200), the path (100) being in an inverted U shape, the protection prop (200 ) is mounted in the road (100), the protective support (200) comprises a top plate (201), side plates (202) and bases (203), the bases (203) are fixedly connected to the base of the road (100) and are respectively close to two parallel side walls of the road (100), the side plates (202) are slidingly connected to the bases (203), the top plate (201) is arranged at an acute angle, side walls of the top plate (201) on both sides are slidingly connected to the side plates (202) on the bases (203), the side plates (202) are connected to support rods (204), a cylinder of the support rod (204) is rigidly connected to the side plate (202), and a piston rod of the support rod (204) is firmly connected n with the top plate (201). 2. Autoklaas-beschermingsonderstutting met bewakingsfunctie volgens conclusie 1, waarbij een eerste zwaluwstaart-geleidingsrail (205) vast is verbonden met buitenste zijwanden van de bovenplaat (201), de zijde van de zijplaat (202), welke zijde dicht bij de bovenplaat (201) is gelegen, is voorzien van een eerste zwaluwstaart-geleidingsgroef (206), de eerste zwaluwstaart- geleidingsrail (205) schuivend is verbonden in de eerste zwaluwstaart-geleidingsgroef (208), een onderste eindvlak van de zijplaat (202) vast is verbonden met een tweede zwaluwstaart- geleidingsrail (207), een bovenste eindvlak van de basis (203) is voorzien van een tweede zwaluwstaart-geleidingsgroef (208), en de tweede zwaluwstaart-geleidingrail (207) schuivend is verbonden in de tweede zwaluwstaart-geleidingsgroef (208).The monitored car glass protection support according to claim 1, wherein a first dovetail guide rail (205) is rigidly connected to outer side walls of the top plate (201), the side of the side plate (202), which side is close to the top plate (201). ) is provided with a first dovetail guide groove (206), the first dovetail guide rail (205) is slidably connected in the first dovetail guide groove (208), a lower end face of the side plate (202) is fixedly connected to a second dovetail guide rail (207), an upper end face of the base (203) has a second dovetail guide groove (208), and the second dovetail guide rail (207) is slidably connected in the second dovetail guide groove (208 ). 3. Autoklaas-beschermingsonderstutting met bewakingsfunctie volgens conclusie 2, waarbij een driehoekige versterkingsrib (209) vast is verbonden met een bovenste eindvlak van de tweede zwaluwstaart-geleidingsrail (207), en de andere zijwand van de verstijvingsrib (209) vast is verbonden met een zijwand van de zijplaat (202).The monitored autoclas protection support according to claim 2, wherein a triangular reinforcing rib (209) is fixedly connected to an upper end face of the second dovetail guide rail (207), and the other side wall of the stiffening rib (209) is fixedly connected to a side wall of the side plate (202). 4. Autoklaas-beschermingsonderstutting met bewakingsfunctie volgens conclusie 2, waarbij de zijde van de tweede zwaluwstaart-geleidingsgroef (208), welke zijde weg is gelegen van de zijwand van de weg (100), vast is verbonden met een verplaatsingssensor (210) die wordt gebruikt voor het bewaken van de positie van de tweede zwaluwstaart-geleidingsrail (207), de verplaatsingssensor (210) elektrisch is verbonden met een dataprocessor, een communicatiebasisstation is verschaft in de weg (100), en waarbij, nadat een verplaatsingssignaal dat wordt gedetecteerd door de verplaatsingssensor (210) is verwerkt door de dataprocessor, het signaal door het communicatiebasisstation naar de grond wordt gezonden.The car crash protection support with monitoring function according to claim 2, wherein the side of the second dovetail guide groove (208) which side is away from the side wall of the road (100) is fixedly connected to a displacement sensor (210) which is used for monitoring the position of the second dovetail guide rail (207), the displacement sensor (210) is electrically connected to a data processor, a communication base station is provided in the path (100), and wherein, after a displacement signal detected by the displacement sensor (210) is processed by the data processor, the signal is sent to the ground by the communication base station. 5. Autoklaas-beschermingsonderstutting met bewakingsfunctie volgens conclusie 4, waarbij de zijwand van de basis (203), welke wand weg is gelegen van de zijwand van de weg (100), is voorzien van een groef (211), een schroefveer (212) vast is verbonden in de groef (211), stofdoek (213) vast is verbonden met een vrij einde van de schroefveer (212), en het einde van de stofdoek (213), welk einde weg is gelegen van de schroefveer (212), vast is verbonden met de zijplaat (202).The car glass guard support with monitoring function according to claim 4, wherein the side wall of the base (203), which wall is located away from the side wall of the road (100), has a groove (211), a coil spring (212) is fixedly connected in the groove (211), duster (213) is fixedly connected to a free end of the coil spring (212), and the end of the duster (213), which end is located away from the coil spring (212), is rigidly connected to the side plate (202).
NL2027081A 2020-10-15 2020-12-09 Rock burst protection support with monitoring function NL2027081B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011105727.8A CN112377226B (en) 2020-10-15 2020-10-15 Rock burst protective bracket with monitoring function

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NL2027081A true NL2027081A (en) 2022-06-08
NL2027081B1 NL2027081B1 (en) 2022-09-12

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* Cited by examiner, † Cited by third party
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CN112377226B (en) * 2020-10-15 2022-04-01 山东省煤田地质规划勘察研究院 Rock burst protective bracket with monitoring function
CN113756853B (en) * 2021-07-31 2024-05-10 山东省煤田地质规划勘察研究院 Deep well soft rock stratum rock burst protection device

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CN112377226A (en) * 2020-10-15 2021-02-19 山东省煤田地质规划勘察研究院 Rock burst protective bracket with monitoring function

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CN104863620A (en) * 2015-04-18 2015-08-26 遵义庄氏矿井支护技术开发有限公司 Closed retractable I-shaped steel trapezoid bracket
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CN106321123B (en) * 2016-09-14 2018-06-19 安徽理工大学 A kind of self-adjustable mining bracket of support stiffness
CN209494581U (en) * 2018-12-28 2019-10-15 乌审旗蒙大矿业有限责任公司 One kind with facing sky tunnel protecting against shock pressure combined hydraulic rack structure
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CN111663954A (en) * 2020-06-05 2020-09-15 芜湖青悠静谧环保科技有限公司 A supplementary support frame that consolidates of exit for tunnel
CN112377226A (en) * 2020-10-15 2021-02-19 山东省煤田地质规划勘察研究院 Rock burst protective bracket with monitoring function

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Publication number Publication date
CN112377226A (en) 2021-02-19
NL2027081B1 (en) 2022-09-12
CN112377226B (en) 2022-04-01

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