Flexible plastic quick grouting hole sealing device and method
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA UNIV OF MINING & TECH
- Publication Date
- 2017-02-15
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Abstract
Description
technical field
[0001] The invention discloses a flexible plastic fast grouting sealing device and method, which is mainly used for the sealing operation of coal and rock drilling, for the static pressure (hydraulic fracturing) and dynamic pressure ( Hydraulic pulsation, hydraulic jet) cracking, anti-reflection, pressure relief, and blasting in coal and rock drilling (common charge blasting, liquid-filled pressure blasting, etc.) have good hole sealing effects. Background technique
[0002] The pre-cracking control of the hard roof of the coal seam, the high stress relief transfer and dynamic load prevention and control of the coal seam in the deep mine, the efficient drainage of the gas-containing coal seam, etc. are all the main technical problems faced by the safe and efficient mining of modern mines in my country. Under the condition of hard and difficult roof, the influence on the safety production of coal mine is more prominent. Aiming at such outstanding problems in m...