Experimental Study on theMechanical Properties ofPaste-like Fill Material  

作　　者：黄玉诚 孙恒虎 

机构地区：[1]School of Resource and Safety Engineering CUMT, Beijing 100083, China

出　　处：《Journal of China University of Mining and Technology》2004年第2期107-110,共4页中国矿业大学学报（英文版）

基　　金：TheNationalNaturalScienceFoundationofChina(50104011)

摘　　要：The experiments, which include the complete stress-strain curves, triaxial compressive loading history and the main factors affecting the compressive strength of the material, were made to research the mechanical properties of paste-like fill material. The results show that the material still has a relatively high load-bearing capacity after yielding. From the view of the backfill strength, the suitable content of the fine particles in the aggregates is 20%, the curing temperature of backfill slurry is about 20 centigrade degrees or higher. The backfill strength can reach 2.5-3.6 MPa when the binder dosage is 5%-8%. It can meet the needs for mining with backfill.The experiments, which include the complete stress-strain curves, triaxial compressive loading history and the main factors affecting the compressive strength of the material, were made to research the mechanical properties of paste-like fill material. The results show that the material still has a relatively high load-bearing capacity after yielding. From the view of the backfill strength, the suitable content of the fine particles in the aggregates is 20%, the curing temperature of backfill slurry is about 20 centigrade degrees or higher. The backfill strength can reach 2. 5-3. 6 MPa when the binder dosage is 5%-8%. It can meet the needs for mining with backfill.

关 键 词：PASTE-LIKE FILL MATERIAL mechanical properties TAILINGS STRENGTH 

分 类 号：TD823.7[矿业工程—煤矿开采]