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Roadway stability measurement and evaluation vehicle and its use method

A stability and roadway technology, applied in the field of roadway stability measurement and evaluation vehicles, can solve the problems of bottom drilling, inclination, and low rigidity of weak bottom plates, etc. Effect

Active Publication Date: 2019-03-22
ANHUI UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is aimed at the weak floor condition, due to the influence of the working face mining and the influence of the advanced support pressure, the possibility of sinking of the roof along the empty slot and bottom heaving of the bottom plate increases, especially the stiffness of the weak floor A roadway stability measurement and evaluation vehicle and its use method developed for the problems that the support is easy to drill bottom or even tilt, and the support system of the stope is unstable.

Method used

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  • Roadway stability measurement and evaluation vehicle and its use method
  • Roadway stability measurement and evaluation vehicle and its use method
  • Roadway stability measurement and evaluation vehicle and its use method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] like Figure 1-Figure 8 As shown, a roadway stability measurement and evaluation vehicle includes a vehicle body and an improved single pillar detachably fixed on it;

[0047] The car body includes a compartment panel 1, on which the improved single pillar is detachably fixed, and on the compartment panel 1 are also provided with a manipulator 2 and a storage box 3, as well as a displacement measuring system connected with the manipulator 2, hydraulic pressure Measuring system and anchoring force testing system 22; the improved single pillar is connected to the displacement measuring system and the hydraulic measuring system respectively;

[0048] The improved single column is composed of an inner column 4 and an outer column 5 sleeved outside the inner column 4. The outer column 5 is a hollow structure with one end closed. The hollow part is an oil chamber 6. The inner column 4 is a structure with both ends closed. A top plate baffle 7 is provided, and a sealing plate...

Embodiment 2

[0067] A method of using the roadway stability measurement and evaluation vehicle of the present invention to carry out on-site measurement of the floor specific pressure at different locations of the whole roadway, comprising the following steps:

[0068] Step 1. Arrange measuring points: arrange a measuring point every 10m in the roadway area with flat terrain, and arrange a measuring point every 5m in the area where the slope of the terrain is greater than 8° or within 20m, and the difference between any height of the roadway is 500mm;

[0069] Step 2. Measurement: Use the roadway stability measurement and evaluation car, push it to the first measuring point, clean the bottom plate first, straighten the improved single pillar, and keep it in a vertical state. The bottom plate must be in full contact.

[0070] Open the valve on the high-pressure liquid injection pipe 16, it is advisable to pressurize the improved single pillar so that the top plate baffle plate 7 is no longer...

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Abstract

The invention discloses a tunnel stability measuring and evaluating vehicle which comprises a vehicle body and an improved single-body pillar fixed on the vehicle body in a detachable way. The vehicle body comprises a compartment plate (1), the improved single-body pillar is fixed on the compartment plate (1) in the detachable way, a displacement metering system, a hydraulic metering system, an anchoring force test system (22), an operation machine (2) and a storing box (3) are arranged on the compartment plate (1), and the improved single-body pillar is connected with the displacement metering system and the hydraulic metering system. According to the tunnel stability measuring and evaluating vehicle, liquid is injected in a circulated way, and existing emulsion is used to serve the whole liquid injection process; and the improved single-body pillar of the tunnel stability measuring and evaluating vehicle can ensure that a single body needs not to be carried by workers in a working distance of thousands of meters, and the workload and work intensity are reduced greatly.

Description

technical field [0001] The invention relates to a mining machine, in particular to a roadway stability measurement and evaluation vehicle for coal mining in a working face under complex surrounding rock conditions and a method for using the same. Background technique [0002] The stope support system is composed of "bottom plate-bracket-roof". Under the impact of mining and the supporting pressure of the bracket (column), the bottom plate will be displaced, deformed and even damaged. When the bottom plate of the roadway is damaged, the roof will also be damaged. Even if a roof fall accident occurs, the damage of the bottom plate will further affect the support effect of the stope and the roadway, the support (column) may bottom out or tilt, the effective support force of the support (column) will be significantly reduced, and the sinking of the roof will increase. Detachment occurs at the top, and even a roof fall accident occurs, which may lead to the redistribution of grou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00
CPCG01M99/00
Inventor 涂敏雷成祥程桦黄乃斌方恩才刘结高李晓斌
Owner ANHUI UNIV OF SCI & TECH
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