| 防膨胀软岩注浆材料试验及应用研究 |
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| 引用本文： | 孙晓明,陈 峰,梁广峰,付 毅,郭志飚,吴兆强.防膨胀软岩注浆材料试验及应用研究[J].岩石力学与工程学报,2017,36(2):457-465. |
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| 作者姓名： | 孙晓明 陈 峰 梁广峰 付 毅 郭志飚 吴兆强 |
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| 作者单位： | (1. 中国矿业大学 深部岩土力学与地下工程国家重点实验室，北京 100083；2. 中国矿业大学 力学与建筑工程学院，北京 100083；
3. 兖州煤业股份有限公司南屯煤矿，山东 邹城 273500；4. 中国安华集团总公司，北京 100029) |
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| 摘 要： | 为研制一种防膨胀软岩注浆材料以满足膨胀性软岩巷道注浆加固的需求。通过室内试验，研究注浆材料的密度、析水率、凝结时间、流动度、结石体强度等主要性能参数。通过现场试验，研究注浆材料对膨胀性软岩巷道围岩的注浆加固性能。研究结果表明：当注浆材料的水灰比为0.5∶1，添加剂比率为5‰时，注浆材料的主要性能参数最优；该注浆材料能有效提高破碎膨胀性软岩的强度，改善膨胀性软岩巷道围岩的特性，防止软岩巷道围岩在注浆时发生吸水膨胀变形，是一种较好的防软岩膨胀注浆材料。
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| 关 键 词： | 岩石力学软岩防膨胀注浆材料加固性能 |
Experimental and application research on grouting material for preventing swelling of soft rock |
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| SUN Xiaoming,CHEN Feng,LIANG Guangfeng,FU Yi,GUO Zhibiao,WU Zhaoqiang.Experimental and application research on grouting material for preventing swelling of soft rock[J].Chinese Journal of Rock Mechanics and Engineering,2017,36(2):457-465. |
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| Authors: | SUN Xiaoming CHEN Feng LIANG Guangfeng FU Yi GUO Zhibiao WU Zhaoqiang |
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| Affiliation: | (1. State Key Laboratory for Geomechanics and Deep Underground Engineering，China University of Mining and Technology，Beijing 100083，China；2. School of Mechanics and Civil Engineering，China University of Mining and Technology，Beijing 100083，China；3. Nantun Coal Mine，Yanzhou Coal Mining Group Company Limited，Zoucheng，Shandong 273500，China；;
4. China Anhua Group Corporation，Beijing 100029，China) |
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| Abstract: | A type of anti-swelling grouting material has been manufactured in order to meet the demand for the grouting reinforcement of the underground roadway in swelling soft rock. The main parameters of performance of the grouting material，such as the density，the bleeding ration，the setting time，the fluidity and the consolidating strength were studied in the laboratory tests. Meanwhile the reinforcement performance of the grouting material was researched in an in-suit experiment. The results show that the main parameters of performance of the grouting material are optimal when the water-cement ratio is 0.5：1 and the ratio of the additive is 5‰. The grouting material is confirmed to improve effectively the property of the surrounding rock and enhance the strength of the broken and swelling soft rock. Meanwhile the grouting material also prevents the swelling deformations of the soft surrounding rock during the grouting process. |
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| Keywords: | rock mechanics soft rock anti-swelling grouting material reinforcement performance |
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