| 运用水压破裂法测试岩石的抗拉强度 |
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| 引用本文： | 李敬兰,李益民. 运用水压破裂法测试岩石的抗拉强度[J]. 地球科学进展, 2004, 0(Z1) |
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| 作者姓名： | 李敬兰 李益民 |
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| 作者单位： | 中国有色金属工业长沙勘察设计研究院 中国有色金属工业长沙勘察设计研究院 湖南 长沙 湖南 长沙 |
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| 摘 要： | 劈裂法受试验条件的影响很难得出理想的结果,而水压破裂试验有试件受力载荷不受人为因素干扰的优点,测得的抗拉强度具有较高的可信度,并且在工程实际中有广泛的用途。本文在研究水压破裂法测试岩石抗拉强度的方法及原理的基础上,用统计断裂力学整理试验结果,并与巴西法作了比较。试验表明,用威布尔二参数模型的统计断裂力学方法研究岩石抗拉强度是可行的,并具有良好的线性关系。
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| 关 键 词： | 水压破裂法 抗拉强度 统计断裂力学 |
THE ROCK TENSILE STRENGTH MEASUREMENT USING HYDRAULIC FRACTURING TEST |
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| LI Jing-lan,LI Yi-min. THE ROCK TENSILE STRENGTH MEASUREMENT USING HYDRAULIC FRACTURING TEST[J]. Advances in Earth Sciences, 2004, 0(Z1) |
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| Authors: | LI Jing-lan LI Yi-min |
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| Abstract: | The results of split method are not good for the impacts from testing condition. But the tensile strength measured by using hydraulic fracturing test has high reliability and widespread availability in engineering work, because the sample of hydraulic fracturing test is not disturbed by human factors. Based on the method and principle study of hydraulic fracturing test for measuring tensile strength, the statistic fracture mechanics was used to arrange test results in this paper, and the test results were compared with Brazilian method. From this test, it is found that the statistic fracture mechanics method with WeibuU two-parameters model to study rock tensile strength is feasible and the results have good linear relation. |
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| Keywords: | Hydraulic fracturing test Tensile strength Statistic fracture mechanics. |
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