复相凝水膨胀材料充填性能影响因素实验研究
Experimental Study on Factors Affecting the Filling Performance of Composite Condensate Expansion Materials
作者：兰文涛(北京科技大学 土木与资源工程学院, 北京 100083;金属矿山高效开采与安全教育部重点实验室, 北京 100083)；吴爱祥(北京科技大学 土木与资源工程学院, 北京 100083;金属矿山高效开采与安全教育部重点实验室, 北京 100083)；王贻明(北京科技大学 土木与资源工程学院, 北京 100083;金属矿山高效开采与安全教育部重点实验室, 北京 100083)
Author：LAN Wentao(School of Civil and Environmental Eng., Univ. of Sci. and Technol. Beijing, Beijing 100083, China;State Key Lab. of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, Beijing 100083, China)；WU Aixiang(School of Civil and Environmental Eng., Univ. of Sci. and Technol. Beijing, Beijing 100083, China;State Key Lab. of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, Beijing 100083, China)；WANG Yiming(School of Civil and Environmental Eng., Univ. of Sci. and Technol. Beijing, Beijing 100083, China;State Key Lab. of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, Beijing 100083, China)
收稿日期：2018-05-11 年卷（期）页码：2019,51(5):192-198
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：半水磷石膏;随机实验;复合外加剂;多元非线性回归分析;3D数据可视化
Key words：hemihydrate phosphogypsum;random test;composite admixture;multivariate nonlinear regression analysis;3D data visualization
基金项目：国家自然科学基金项目（51674012）
中文摘要
复相凝水膨胀材料是一种新型矿山充填材料。以复相凝水膨胀充填材料的抗压强度、非固相体积率、膨胀率和表征耐水性能的强度损失率为主要研究对象，通过单因素实验法、随机实验法等，调整外加剂的掺量，研究了各外加剂掺量分别对复相凝水膨胀充填材料充填性能的影响规律以及外加剂复合作用下复相凝水膨胀充填材料充填性能的变化规律。以随机实验法所获得的大量实验数据建立3D可视化模型，对多因素复合作用下复相凝水膨胀充填材料的充填性能变化规律进行了研究，并采用多项式逼近法建立了不同充填性能对应的多元非线性回归模型。结果表明：随着非晶相凝水剂（SAP）掺量的增加，充填体抗压强度和耐水性能逐渐降低；增加气相引入剂（GPA）的掺量能显著增加充填料浆的膨胀率，但会降低充填体的强度和耐水性；增大表面疏水剂（HA）掺量能降低充填体的强度损失率；复相凝水膨胀材料的3 d抗压强度性能受GPA掺量的影响最大，非固相体积率性能主要受SAP掺量的影响，膨胀率性能主要受GPA掺量的影响，强度损失率主要受HA掺量的影响。
英文摘要
The composite condensate expansion materials is a new type of mine filling material. The effects of the admixture dosage on the compressive strength, non-solid phase volume ratio, expansion ratio and strength loss rate of the multiphase condensate expansion filling materials were studied by single factor test and random test method. Based on a large number of test data obtained by random test method, the effect of material properties under multi-factor combined action was studied by 3D visual model analysis. Polynomial approximation method was used to establish a multivariate nonlinear regression model corresponding to different types of filling performance. The results showed that with the increase of SAP content, the compressive strength and water resistance of the filling body decreased gradually. With the increase of GPA content, the strength of the filling body decreased gradually, the expansion rate of the filling slurry increased significantly, and the water resistance of the filling body decreased gradually. The content of GPA has the greatest influence on the 3 d compressive strength; the volume fraction of non-solid phase is mainly affected by the content of SAP, and the expansion rate of multi-phase condensate expansion material is mainly affected by the content of GPA. The strength loss rate is mainly affected by HA content.
【关闭】
