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Flexible spraying material for mine laneway supporting and preparation method and application of flexible spraying material

A technology for spraying materials and roadway support, applied in mining equipment, shaft equipment, tunnels, etc., can solve the problems of large amount of shotcrete material, high material cost, serious pollution, etc., and achieve high tensile strength and bonding strength. Addressing the effects of large thicknesses, low curing temperatures and flame retardant properties

Active Publication Date: 2020-08-14
赣州创可通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems existing in the prior art, to provide a flexible spraying material for mine roadway support and its preparation method and application, to solve the problem of large amount of spraying material used in the mine roadway bolting and spraying support process, and the slurry layer Thickness, high rebound rate, high material cost, dust, serious pollution, poor compactness, easy to fall off and other long-term problems of roadway spray grouting

Method used

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  • Flexible spraying material for mine laneway supporting and preparation method and application of flexible spraying material
  • Flexible spraying material for mine laneway supporting and preparation method and application of flexible spraying material
  • Flexible spraying material for mine laneway supporting and preparation method and application of flexible spraying material

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Embodiment 1-5

[0043] According to the mass parts of fine aggregate, slag powder, cement-based cementitious material, reinforcing fiber, quick-setting agent and setting retarder listed in Table 1 below, component A was prepared by uniform stirring.

[0044] Table 1

[0045]

[0046]

[0047] According to the mass parts of the polymer emulsion, water reducing agent, quick-setting agent and diluent listed in Table 2 below, the component B was prepared by stirring uniformly for future use.

[0048] Table 2

[0049]

[0050] According to the mass parts of component A and component B listed in the following table 3, according to the application method provided by the present invention, spraying construction is carried out at the cracked closed wall, and the spraying speed is 0.5m 2 / min, the spraying distance is 2m, the thickness of each spraying is about 2-5mm, the number of spraying is 2 times, and the spraying interval is 30min. The performance indicators are listed in Table 3.

[0...

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Abstract

The invention relates to a flexible spraying material for mine roadway support and a preparation method and application of the flexible spraying material, and belongs to the technical field of mine roadway supporting. The slag-based anchoring and shotcreting support guniting material prepared by the method is an organic-inorganic hybrid material and does not volatilize harmful substances and is safe and environment-friendly; a slag doped guniting material is adopted so that effective utilization of slag is developed, secondary pollution is relieved, and the cost is reduced; vertical face and top face spraying construction does not flow, the construction environment is friendly, and any springback and dust pollution problems are avoided; the curing temperature is low, and the flame-retardant property is realized.

Description

technical field [0001] The invention relates to a flexible spraying material for mine roadway support, a preparation method and application thereof, and belongs to the technical field of mine roadway support. Background technique [0002] my country's underground mine mining is facing complex geological conditions, severe mining conditions, rock avalanches, geological subsidence, and large land occupation by slag that need to be solved urgently. For example, the deliquescence and weathering of the surrounding rock mass in the coal mine lead to cracking of the coal rock mass, groundwater leakage, air leakage, and gas accumulation, which seriously affect the safe production of the coal mine; coal gangue is a large amount of solid waste produced in the process of coal mine development, occupying a large amount of land area , and contains a variety of harmful components, long-term exposure to the atmosphere will cause soil and water pollution. The anchor shotcrete technology is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B28/04C04B28/08C04B28/02C04B28/00E21D11/10E21D11/38C04B111/28C04B111/27
CPCC04B28/065C04B28/04C04B28/08C04B28/021C04B28/06C04B28/00E21D11/105E21D11/38C04B2111/00724C04B2111/00155C04B2111/00508C04B2111/28C04B2111/27C04B2201/50C04B14/06C04B18/12C04B16/0641C04B24/06C04B2103/12C04B24/2623C04B2103/302C04B24/045C04B18/08C04B16/0633C04B12/04C04B24/10C04B22/148C04B24/2611
Inventor 张志乾祝静魏宏亮
Owner 赣州创可通科技有限公司
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