| 用追踪法确定连续破坏状态三轴试验的控制参数 |
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| 引用本文： | 杨志法.用追踪法确定连续破坏状态三轴试验的控制参数[J].地质科学,1985,0(3):266-274. |
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| 作者姓名： | 杨志法 |
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| 作者单位： | 中国科学院地质研究所 |
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| 摘 要： | 利用刚性压机对圆柱形岩石试件进行三轴试验是确定岩石强度的一种重要方法。若用常规三轴试验,则一块试件只能在应力圆上得到一个点。换言之,要得到一条峰值强度包络线,就必须进行多次的这种三轴试验方可。1975年 K.Kovari 教授等人提出了多次破坏试验的方法。1983年他们又进而提出了有关连续破坏状态三轴试验(简称为 CFS 试验)的概念和方法。
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| 关 键 词： | , |
| 收稿时间： | 1984-01-30 |
| 修稿时间： | 1984-01-30; |
THE TRACING METHOD TO DETERMINE THE CONTROLLING PARAMETER IN THE CONTINUOUS FAILURE STATE TRIAXIAL TEST |
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| Yang Zhifa.THE TRACING METHOD TO DETERMINE THE CONTROLLING PARAMETER IN THE CONTINUOUS FAILURE STATE TRIAXIAL TEST[J].Chinese Journal of Geology,1985,0(3):266-274. |
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| Authors: | Yang Zhifa |
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| Institution: | Institute of Geology, Academis Sinica, Beijing |
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| Abstract: | The conventional triaxial test on cylinderical specimens is the most important one in laboratory test for the determination of the strength of rock. With this method, only one point of the failure envelope can be obtained per specimen. In order to save time and reduce test costs. Prof. Kovari has developed the continuous failure state triaxial test abbreviated to CFS triaxial test. Thus, in principle, it is possible to obtain the failure envelope with one specimen. But there is still an important problem to be solved for this new method. That is how to detemine the controlling parameter V/E to make the stress-confining pressure curve correspond closely to failure envelope of the rock.In this paper we present the tracing method to solve this problem. First of all, it is justifiable that distribution of peak points of various stress strain curves with different confining pressure can be treated as a straight line approximately. Then, according to a known point which will be given by uniaxial or triaxial test before GFS test, we can trace this line to obtain the points on the line close to the relevant peak points. CFS triaxial test which is executed with the traoing method exhibits failure envelope obtained by a series of conventional tests. Many tests show that the tracing method is an efficient and simple method. |
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| Keywords: | , |
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