Coal field bottom plate grouting prevention and control method based on water-soluble fluorescent agent
The invention provides a coal field bottom plate grouting prevention and control method based on a water-soluble fluorescent agent. The coal field bottom plate grouting prevention and control method comprises the steps that step A, cement grout containing the fluorescent agent is prepared; step B, a...
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| creator | QI LIANGUANG LI CHEN ZHAO CHENGZHOU ZHAO JIE LI YE HONG HUANG GUI HERONG CHEN JIAYU WANG HUAQIANG GUO YAN CUI YALI QING XIANBIN LIANG ZHAN |
| description | The invention provides a coal field bottom plate grouting prevention and control method based on a water-soluble fluorescent agent. The coal field bottom plate grouting prevention and control method comprises the steps that step A, cement grout containing the fluorescent agent is prepared; step B, a first branch hole is constructed in a drilling site, and grouting plugging is conducted; step C, second branch holes are constructed around the first branch hole, and when drilling is conducted to a three-ash area, drilling is conducted in the direction of a center branch hole at a certain inclination angle; step D, when the fluorescent agent is detected, a drilling position is marked; step E, a grout diffusion radius is determined according to a linear distance between the drilling position and the center branch hole, and drilling continues to be conducted according to an original path or a position of a second branch hole is determined again; and step F, other branch holes are constructed according to the diffus |
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The coal field bottom plate grouting prevention and control method comprises the steps that step A, cement grout containing the fluorescent agent is prepared; step B, a first branch hole is constructed in a drilling site, and grouting plugging is conducted; step C, second branch holes are constructed around the first branch hole, and when drilling is conducted to a three-ash area, drilling is conducted in the direction of a center branch hole at a certain inclination angle; step D, when the fluorescent agent is detected, a drilling position is marked; step E, a grout diffusion radius is determined according to a linear distance between the drilling position and the center branch hole, and drilling continues to be conducted according to an original path or a position of a second branch hole is determined again; and step F, other branch holes are constructed according to the diffus</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS TESTING |
| title | Coal field bottom plate grouting prevention and control method based on water-soluble fluorescent agent |
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