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Ultralow-permeability airtight rock stratum similar material and preparation method and application thereof
The invention belongs to the technical field of rock-soil/underground engineering physical simulation similar materials, and particularly relates to an ultra-low permeability airtight rock stratum similar material for a physical model experiment and a preparation method and an application thereof. The similar material is prepared from the following raw material components: iron powder, barite powder, quartz sand, special cement and a cement sealing waterproof agent, wherein the iron powder, the barite powder and the quartz sand jointly form aggregate, and the iron powder, the barite powder andthe quartz sand are compounded according to an equal mass ratio; wherein the mass of the special cement is 2-20% of the mass of the aggregate, and the mass of the cement sealing waterproofing agent is 0-0.5% of the mass of the aggregate. The similar material has the characteristics of high strength, low permeability, stable property and large adjustable range; the material can be used for simulating top and bottom plate similar materials with different strengths and different permeabilities, and provides the good material guarantee for coal and gas outburst test research.
本发明属于岩土/地下工程物理模拟相似材料技术领域，尤其涉及一种用于物理模型实验的超低渗气密性岩层相似材料及其制备方法和应用。所述相似材料的原料组成包括如下组分：铁粉、重晶石粉、石英砂、特种水泥、水泥密封防水剂；其中，所述铁粉、重晶石粉、石英砂共同构成骨料，三者按照等质量的比例进行复配；所述特种水泥为骨料质量的2～20％，所述水泥密封防水剂为骨料质量的0～0.5％。这种相似材料具有强度高，渗透率低，性质稳定，可调范围较大的特点；可用来模拟不同强度不同渗透率的顶底板相似材料，为煤与瓦斯突出试验研究提供良好的材料保证。
Ultralow-permeability airtight rock stratum similar material and preparation method and application thereof
The invention belongs to the technical field of rock-soil/underground engineering physical simulation similar materials, and particularly relates to an ultra-low permeability airtight rock stratum similar material for a physical model experiment and a preparation method and an application thereof. The similar material is prepared from the following raw material components: iron powder, barite powder, quartz sand, special cement and a cement sealing waterproof agent, wherein the iron powder, the barite powder and the quartz sand jointly form aggregate, and the iron powder, the barite powder andthe quartz sand are compounded according to an equal mass ratio; wherein the mass of the special cement is 2-20% of the mass of the aggregate, and the mass of the cement sealing waterproofing agent is 0-0.5% of the mass of the aggregate. The similar material has the characteristics of high strength, low permeability, stable property and large adjustable range; the material can be used for simulating top and bottom plate similar materials with different strengths and different permeabilities, and provides the good material guarantee for coal and gas outburst test research.
本发明属于岩土/地下工程物理模拟相似材料技术领域，尤其涉及一种用于物理模型实验的超低渗气密性岩层相似材料及其制备方法和应用。所述相似材料的原料组成包括如下组分：铁粉、重晶石粉、石英砂、特种水泥、水泥密封防水剂；其中，所述铁粉、重晶石粉、石英砂共同构成骨料，三者按照等质量的比例进行复配；所述特种水泥为骨料质量的2～20％，所述水泥密封防水剂为骨料质量的0～0.5％。这种相似材料具有强度高，渗透率低，性质稳定，可调范围较大的特点；可用来模拟不同强度不同渗透率的顶底板相似材料，为煤与瓦斯突出试验研究提供良好的材料保证。
Ultralow-permeability airtight rock stratum similar material and preparation method and application thereof
一种超低渗气密性岩层相似材料及其制备方法和应用
WANG HANPENG (author) / YUAN LIANG (author) / MA ZHENGWEI (author) / ZHANG BING (author) / XUE YANG (author) / LIU ZHONGZHONG (author) / ZHANG CHONG (author)
2020-04-17
Patent
Electronic Resource
Chinese
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