(1. 北京科技大學 金屬礦山高效開采與安全教育部重點實驗室，北京 100083；
2. 北京科技大學 土木與環(huán)境工程學院，北京 100083；
3. 云南馳宏鋅鍺股份有限公司，曲靖 654212)
摘 要: 采用自制的傾斜管實驗裝置，利用4因素6水平均勻設計方案，通過回歸分析得到各因素對膏體料漿流變參數(shù)的影響規(guī)律；從充填倍線角度出發(fā)，分析膏體料漿流變參數(shù)和自流輸送的規(guī)律，并建立最大允許充填倍線與流變參數(shù)模型。針對云南某鉛鋅礦實際充填情況，得到料漿質(zhì)量分數(shù)為77%~80%時，其最大允許充填倍線分別為10.83、6.49、5.00和4.12，此結(jié)果能為井下不同位置采空區(qū)選擇不同質(zhì)量分數(shù)的膏體料漿提供理論依據(jù)。
關鍵字: 傾斜管；屈服應力；塑性黏度；充填倍線；自流輸送
（1. Key Laboratory for High Efficient Mining and Safety in Metal Mine, Ministry of Education,
University of Science and Technology Beijing, Beijing 100083, China;
2. School of Civil and Environmental Engineering, University of Science and Technology Beijing,
Beijing 100083, China;
3. Yunan Chihong Zn & Ge Co., Ltd., Qujing 654212, China）
Abstract:A four-factor of six-level uniform design scheme was used on the basis of a self-made inclined pipe experimental device. Affecting laws between each factor and rheological parameters for paste slurry were got by regression analysis. Laws of rheological parameters for paste slurry and gravity transport were analyzed, and then the models between the maximum stowing gradient and rheological parameters were established. According to the real filling conditions of a certain Pb &Zn mine in Yunnan Province, China, when the mass fraction of slurry is from 77% to 80%, its maximum filling times lines are 10.83, 6.49, 5.00 and 4.12, respectively. These results provide theoretical basis for determining mass fraction of paste slurry in different underground goafs.
Key words: inclined pipe; yield stress; plastic viscosity; filling times line; gravity transport
