矿业工程研究
礦業工程研究
광업공정연구
MINERAL ENGINEEERING RESEACH
2011年
4期
1-5
,共5页
孙小康%朱卓慧%徐燕飞
孫小康%硃卓慧%徐燕飛
손소강%주탁혜%서연비
分级加卸载%伯格斯模型%弹塑性%流变
分級加卸載%伯格斯模型%彈塑性%流變
분급가사재%백격사모형%탄소성%류변
step loading and unloading%burgers model%elastoplastic%creep
利用RMT-150C微机控制电液伺服岩石力学试验机测定了三岔河矿区顶板粉砂岩的各项物理力学指标;采用分级加卸载的方式在RYL-600岩石剪切流变试验仪上进行了一系列的岩石流变试验;分析试验数据,发现该区岩石具有弹性一粘性一粘弹性的流变特性,总结岩石流变特性,对其流变模型进行辨识,发现岩石的流变特性与伯格斯模型性质很相似;利用伯格斯模型对该区岩石的流变特性展开研究,求取了不同应力水平下伯格斯流变模型各项参数,利用伯格斯方程拟合得出岩石的流变理论曲线,理论曲线和实际试验数据吻合较好,说明伯格斯模型能较好地反映三岔河矿区顶板粉砂岩的流变特性.
利用RMT-150C微機控製電液伺服巖石力學試驗機測定瞭三岔河礦區頂闆粉砂巖的各項物理力學指標;採用分級加卸載的方式在RYL-600巖石剪切流變試驗儀上進行瞭一繫列的巖石流變試驗;分析試驗數據,髮現該區巖石具有彈性一粘性一粘彈性的流變特性,總結巖石流變特性,對其流變模型進行辨識,髮現巖石的流變特性與伯格斯模型性質很相似;利用伯格斯模型對該區巖石的流變特性展開研究,求取瞭不同應力水平下伯格斯流變模型各項參數,利用伯格斯方程擬閤得齣巖石的流變理論麯線,理論麯線和實際試驗數據吻閤較好,說明伯格斯模型能較好地反映三岔河礦區頂闆粉砂巖的流變特性.
이용RMT-150C미궤공제전액사복암석역학시험궤측정료삼차하광구정판분사암적각항물리역학지표;채용분급가사재적방식재RYL-600암석전절류변시험의상진행료일계렬적암석류변시험;분석시험수거,발현해구암석구유탄성일점성일점탄성적류변특성,총결암석류변특성,대기류변모형진행변식,발현암석적류변특성여백격사모형성질흔상사;이용백격사모형대해구암석적류변특성전개연구,구취료불동응력수평하백격사류변모형각항삼수,이용백격사방정의합득출암석적류변이론곡선,이론곡선화실제시험수거문합교호,설명백격사모형능교호지반영삼차하광구정판분사암적류변특성.
Physical and mechanical properties of the rock in Sanchahe Mine were determined through electro hydraulic servo controlled rock testing machine ( RMT - 150C) ; A series of rock creep tests were carried out on rock shear rheological tester ( RYL - 600) through the way of hierarchical loading and unloading; The elastic - viscous - viscoelastic properties of rock in the area were found and the rheological model was identified after analyzing the test data. The results showed that it had the similar rheological properties as burgers model; Therefore, researches on rheological properties of the rock around the burgers model were carried out. The parameters of the burgers model under different stress levels were obtained. The rheological theory curves were fitted using burgers equation. The theoretical curve and the actual test data coincides well. It shows that burgers model can reflect the creep characteristics of the rock in Sanchahe Mine well.