Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coal mine paste filling material with characteristics of energy absorption, bearing and cooling and preparation method of coal mine paste filling material
The invention provides a coal mine paste filling material with energy absorption, bearing and cooling characteristics and a preparation method thereof, and belongs to the technical field of green mining of coal mines, the coal mine paste filling material comprises water-based foam and gangue-based paste; wherein the mass ratio of the water-based foam to the gangue-based paste is 0.2 to 1.0; the water-based foam is prepared by diluting and foaming a surfactant. Compared with traditional coal mine gangue fly ash paste, on the basis that the coal mine filling bearing performance requirement is met, the energy absorption performance is good, surrounding rock stress can be better absorbed and transferred, the mine rock burst danger is effectively weakened, the problem of temperature cracks caused by hydration heat of large-size filling paste can be solved, and the filling effect is good. The long-term stability of the goaf filling body is facilitated.
本发明提出了一种具有吸能承载降温特性的煤矿膏体充填材料及其制备方法，属于煤矿绿色开采技术领域，该煤矿膏体充填材料包括水基泡沫和矸石基膏体；其中，所述水基泡沫和矸石基膏体的质量比为0.2‑1.0；所述水基泡沫由表面活性剂经稀释、发泡制得。本发明相比传统煤矿矸石粉煤灰膏体，在满足煤矿充填承载性能需求的基础上，不仅具有吸能性好，更有利于吸收转移围岩应力，有效减弱矿井冲击地压危险，而且可以解决大体积充填膏体由于水化热导致的温度裂缝问题，有利于采空区充填体的长期稳定性。
Coal mine paste filling material with characteristics of energy absorption, bearing and cooling and preparation method of coal mine paste filling material
The invention provides a coal mine paste filling material with energy absorption, bearing and cooling characteristics and a preparation method thereof, and belongs to the technical field of green mining of coal mines, the coal mine paste filling material comprises water-based foam and gangue-based paste; wherein the mass ratio of the water-based foam to the gangue-based paste is 0.2 to 1.0; the water-based foam is prepared by diluting and foaming a surfactant. Compared with traditional coal mine gangue fly ash paste, on the basis that the coal mine filling bearing performance requirement is met, the energy absorption performance is good, surrounding rock stress can be better absorbed and transferred, the mine rock burst danger is effectively weakened, the problem of temperature cracks caused by hydration heat of large-size filling paste can be solved, and the filling effect is good. The long-term stability of the goaf filling body is facilitated.
本发明提出了一种具有吸能承载降温特性的煤矿膏体充填材料及其制备方法，属于煤矿绿色开采技术领域，该煤矿膏体充填材料包括水基泡沫和矸石基膏体；其中，所述水基泡沫和矸石基膏体的质量比为0.2‑1.0；所述水基泡沫由表面活性剂经稀释、发泡制得。本发明相比传统煤矿矸石粉煤灰膏体，在满足煤矿充填承载性能需求的基础上，不仅具有吸能性好，更有利于吸收转移围岩应力，有效减弱矿井冲击地压危险，而且可以解决大体积充填膏体由于水化热导致的温度裂缝问题，有利于采空区充填体的长期稳定性。
Coal mine paste filling material with characteristics of energy absorption, bearing and cooling and preparation method of coal mine paste filling material
一种具有吸能承载降温特性的煤矿膏体充填材料及其制备方法
CHANG QINGLIANG (Autor:in) / ZHANG BIAO (Autor:in) / SUN YIBO (Autor:in) / WANG LUNING (Autor:in) / YAO XINGJIE (Autor:in) / DOU XINLEI (Autor:in) / QIN JIANZHUANG (Autor:in)
28.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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